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5.1 NC Program Structure

A program consists of a program body and program data.

A program body is a list of machine operation commands in the sequence of machining processes. In

general, it is called a program.

Program data is a list of prerequisites for operating the program.

Program data is necessary for machine operation, and it is also useful as a means of operational

communication between operators.

Program Program body ............... Specification of machine operationcommands

Machining data ............... Settings of requirement for machining

Tool set data .................................................... Compensation for errors of mounted toolcenter, diameter, and longitudinal position

5.1.1 Program number (O number)

To distinguish between programs, a program number is assigned to each program (program body and

machining data). A program number can have up to eight digits. Note that you cannot use the numbers

8000 to 9999 because they are used with machine manufacturer's custom programs.

5.1.2 Explanation of machining data

Field Code Changed

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Bar Stock O.D.

Enter the dimension of the outer diameter of the material to be machined.

Tool Positioning Point (DIA)Enter a clearance from the material outer diameter at the position to which a tool (T01 to T09) is

moved when it is selected. When another tool is selected, the currently selected tool is moved to this

position. In other words, a tool (T01 to T09) is moved to the tool positioning point when it is

selected, and the tool is moved to the tool positioning point when another tool is selected.

Cut-Off Tool

T01 is automatically entered.

Cut-Off Speed

The tip of a material is cut at the spindle speed in the Preparation mode.

Cut-Off Feed

The tip of a material is cut at the feed rate in the Preparation mode.

Cut-Off End (DIA)

The X axis is at the end position where cutting the tip of a material is completed in the Preparation

mode. The end position is also the start position on the X axis from which the program starts.

Machining Length

Enter the maximum move distance of the main spindle required for machining a workpiece.

a. Workpiece length + cut-off tool width or rear turning tool width

b. Workpiece length + tool shift amount for secondary machining

Enter the value a or b that is necessary for the program.

Pieces/1Chuck

Enter the number of product to be machined in the program.

Tubing Bar Stock I.D.

When a pipe material is to be machined, enter the dimension of the pipe inner diameter.

The entered value is used for cut-off machining in the Preparation mode. The tool moves to the

position defined by (pipe inner diameter a mm) at the cutting feed rate, and then it moves at the rapid

feed rate until reaching the specified cut-off end position.

M12 M16 M20 M32

a 3.0 3.0 4.0 4.0

Example: When the pipe inner diameter is 10.0 mm and the cut-off end position is X3.0:

The tool moves to the position X6.0 at the cutting feed rate, and then it moves at the rapid

feed rate until reaching the end position X

3.0.

Back Spindle Chuck POS

Enter the value of workpiece protruding from the back spindle.

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Work Receiver No.

Enter the tool number of the turret tool post on which the workpiece separator is mounted.

Front Mach Holder NameEnter the name of the gang tool holder mounted on the machine.

Back Drill Holder Name

Enter the name of the back drilling holder mounted on the machine.

Back Spindle

Enter the type of the back spindle mounted on the machine. Select either "Standard" or "With

Support".

For M1216 type V, the setting shown below is required.

CAUTION

When mounting the double cross spindle (MSC407) of turretholder for M1216 type V, MSC407

interferes with guide bushing if the turret X2 axis is operated at full stroke (side). To avoid

interference, open the machining data screen and put a checkmark on the tool number to

which MSC407 is to be mounted. The checked tool number is selected and the stroke area is

changed. Be sure to provide this setting.

X2 stroke

(This screen shows the machine of type V of M1216 model.)

Normal 98.0

After changed 80.0

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5.2 Drive Axes and Multi-axis Control

5.2.1 Drive axes

Z3

Z1

Z2

X3

Y2

Y1

X1

X2

AxisType Type

Model III Model VX1 Gang tool post Gang tool post

Z1 Headstock Headstock S1 = Main spindle

Y1 Gang tool post Gang tool post S2 = Back spindle

C1 Main spindle C axis Main spindle C axis S3 = Tool spindle of the gang tool post

X2 Turret Turret S4 = Tool spindle of the turret

Z2 Turret Turret S5 = Rotary guide bushing

Y2 Turret (S6 = Tool spindle of the back 3-spindle tool post)

C2 Back spindle C axis Back spindle C axis

X3 Back spindle Back spindle

Z3 Back spindle Back spindle

Notes

The above photograph shows M32.

Y2 axis is available for type V only.

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5.2.2 Coordinate values and signs

The figure below shows the signs used for operation.

For the X1, X2, X3, Y1, and Y2 axes, specify a coordinate value with the diameter that is equivalent to

the distance from the center of the material. For the Z1, Z2, and Z3 axes, specify a coordinate value with

the distance.

a

cb

Y1

X3

Z3

X1

Z1

Z2

X2

22

31

21

233

3

24

32

39

38

2920

28

35

36

26 25

27

37

30

34

Y2

X3stroke

X1stroke

Z3 stroke

Z2 stroke

X2stroke

Z1 stroke with a rotary guide bushing

Z1 stroke with a stationary guide bushing

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CAUTION

The gang tool post Y1 axis of the M31216/M32032 complies with diameter specification. Ifyou want to use machining programs for the M21216/M22032 when machining workpieces with

the M32032, change the Y1-axis setting complying with the diameter specification, and then

start running the machine. If you run the machine with the Y-axis setting complying with

radius specification for the M22032, the tool and workpiece may interfere with each other.

M12 M16 M20 M32

X1 stroke 59.0 59.0 96.0 96.0

Z1 stroke (Fixed guide bushing) 225.0 215.0 325.0 325.0

Z1 stroke (Rotary guide bushing) 205.0 205.0 325.0 325.0

Y1 stroke 208.0 208.0 275.0 275.0

X2 stroke 98.0 98.0

Type III:

135.0

Type III:

135.0

Type V:

120.0

Type V:

120.0

Z2 stroke 133.0 133.0 202.0 202.0

Y2 stroke 33.0 35.0 45.0 45.0

X3 stroke 195.0 195.0 235.0 235.0

Z3 stroke 280.0 280.0 410.0 410.0

a 78.0 88.0 135.0 135.0

b 98.0 98.0 135.0 135.0

c 10.0 10.0 10.0 10.0

Note


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5.2.3 Coordinate values and signs for secondary machining

The same concept as for turning applies to coordinate values and signs for secondary machining. Be

sure to specify an X coordinate value with the diameter. As for signs, specify X coordinates as Xon

the side on which the tool exists, and specify Z coordinates as Zon the side on which the workpiece

exists.

X

6 Z +Z

X +

6.

0

6.

5

12

1.

0

X0, Z0

X-14.0 Z25.0

X13.0 Z25.015.0 10.0

Through-hole position

Program zero point

Positioning

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5.2.4 Coordinate values and signs for back machining

The following figure shows the positional relation among the back spindle, the back machining tools, and

the workpiece chucked by the back chuck.

T43

T42

T41

A

a

b

c

d

M12 M16 M20 M32

A Maximum workpiece

protruding length

25.0 25.0 65.0 65.0

a 290.0 290.0 420.0 420.0

b 35.0

(25.0)

35.0

(25.0)

80.0

(70.0)

80.0

(70.0)

c 133.0 133.0 202.0 202.0

d 5.0 5.0 5.0 5.0

Note: Values for the machine with the optional tool spindle of back 3-spindle tool post, S6, are enclosed

in parentheses on Line b.

Specify the coordinate values in the program assuming that the workpiece is fixed.

+ Z+ X

(Z2 return position)

Turret

(Z3 return position)

Tools on the back3-spindle tool post

Back spindle

Maximum workpiece protruding lengthEnter the value for the "Back SpindleChuck POS" in the machining data.

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Notes

The maximum workpiece protruding length from the end face of the back spindle are listed in row A of

the table on the previous page. If the external length of a workpiece exceeds the maximum value, the

workpiece interferes with another tool during tool selection.

For the "Back Spindle Chuck POS" in the machining data, enter the workpiece protruding length from

the back spindle. (workpiece protruding length = entire workpiece length back chuck position

specified in the program)

If the above value is not entered, the distance between the end face of the back spindle and the back

machining tool becomes zero. Consequently, the back machining tool interferes with the workpiece

protruding from the back spindle when back machining is performed.

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5.3 Machining Patterns

To simplify a program used with a multi-axis machine, operations (machining) are grouped by purpose.

An operational (machining) group is called a machining pattern. The following six machining patterns

are available:

Machining pattern cancel (G600)G600 cancels the machining patterns G610, G620, G630, G635, G640, and G650. (Power-on state)

In general, you do not have to use G600 during automatic operation.

Alternate machining (G610)

This machining pattern is the standard machining pattern that is most frequently used. The machining

pattern is useful when the front machining in $1 to perform machining by alternately using a tool on

the gang tool post and a tool on the turret tool post. The machining pattern also enables the back

machining in $3 to perform machining with a tool on the back 3-spindle tool post.

Two-saddle machining (G620)Use this machining pattern for the front machining in $1 and $2 to perform simultaneous machining

such as rough/finish machining and simultaneous thread cutting (different pitches permitted). The

machining pattern can assign the spindle C axis (C1) to perform machining ($1) with a tool on the gang

tool post or machining ($2) with a tool on the turret tool post. The machining pattern also enables the

back machining in $3 to perform machining with a tool on the back 3-spindle tool post.

Front/back parallel machining (G630)Use this machining pattern to perform front machining and back machining independently. This

machining pattern permits you to perform back machining by alternately using a tool on the turret tool

post and a tool on the back 3-spindle tool post.

Front/back parallel machining (G635)

Use this machining pattern to perform front machining and back machining independently. This


post and a tool on the back 3-spindle tool post. The specification in the back-machining program is

different between G630 and G635: With G630, specify the turret for $2 and the 3-spindle for back

machining for $3 in the program. With G635, specify both the turret and the 3-spindle for back

machining for $2 in the program.

Simultaneous 3-lines machining (G640)This machining pattern permits you to perform the machining of three processes (e.g., outer diameter

machining, front center machining (drilling), and back center machining (drilling)). You cannot use

this machining pattern for machining with tools on the back 3-spindle tool post.

Pick-off, Center-support (G650)

Specify this machining pattern after alternate machining (G610), two-saddle machining (G620), and

front/back parallel machining (G630, G635). This machining pattern enables the back spindle to

pick-off the workpiece and support the long workpiece.

Formatted:Indent: Left: 0 cm,

Hanging: 0,4 cm, Bulleted + Level: 1+ Aligned at: 1 cm + Tab after: 1,63cm + Indent at: 1,3 cm, Tab stops:Not at 1,63 cm

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Notes

You can use the machining pattern of a G code in the G700's. See the M21216/2032 for details on the use of G codes in the G700's.

Axis control groups

The axes of a multi-axis machine are grouped by operational purpose. The axis groups are called axis

control groups.

Create a program for each axis control group. The programs of the axis control groups are executed

when the machine is started.

Superimpose control

If the superimpose control function (G620, G640, or G650 machining pattern) is specified to an axis

control group, its member axes that have been operating with different coordinate systems will operate

synchronizing with the superimposed coordinate system.

Example: With Z1-Z2 superimposed by G620, Z1 is the reference axis and Z2 is the superimposed axis.

In a program, you can specify Z2 coordinate values on the coordinate system of Z1.

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5.3.1 Machining patterns, axes of axis control groups, and superimpose axes

The table below shows axis assignment to axis control groups in the machining patterns. According to

the table, you can select the axis control group that corresponds to the axis you want to move.

Machining pattern Command codeAxes of axis control groups Superimpose

axis$1 $2 $3

Machining pattern

cancel

G600 X1, Z1, Y1, C1 X2, Z2, Y2 X3, Z3, C2

Alternate

machining

G610 G611 X1, Z1, Y1, C1 X3, Z3, C2

G612 X2, Z1, Y2, C1 X3, Z3, C2

Two-saddle

machining

G620 G621 X1, Z1, Y1, C1 X2, Z2, Y2 X3, Z3, C2 Z1-Z2

G622 X1, Z1, Y1 X2, Z2, Y2, C1 X3, Z3, C2 Z1-Z2

Front/back parallel

machining

G630 G632 X1, Z1, Y1, C1 X2, Z2, Y2, C2

G633 X1, Z1, Y1, C1 X3, Z3, C2

Front /back parallel

machining

G635 G637 X1, Z1, Y1, C1 X2, Z2, Y2, C2

G638 X1, Z1, Y1, C1 X3, Z3, C2

Simultaneous

3-lines machining

G640 X1, Z1, Y1, C1 X2, Z2, Y2 X3, Z3, C2 Z1-Z2, Z2-Z3

Pick-off, center

support

G650 Depending on the

previous

machining

pattern

Depending on the

previous

machining

pattern

X3, Z3, C2 Z1-Z3

Machining pattern Command codeAxes of axis control groups Superimpose

axis$1 $2 $3

1-cycle stop M2 X1, Z1, Y1, C1 X2, Z2, Y2 X3, Z3, C2

Notes

Use the machining pattern cancel G600 as the command to cancel the machining patterns G610 to

G650. In general, you do not have to use the G600 command. Specify the machining patterns G610

to G650 for automatic operation.

Use the G611 and G612 commands to select tools on the gang tool post and turret tool post. Use the

G621 and G622 commands to select the axis control groups of the main spindle C axis. Use the G632,

G633, G637, and G638 commands to select tools on the turret tool post and back 3-spindle tool post.

Do not execute the machining pattern commands G600 to G650 in the MDI mode.


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5.3.2 Machining pattern transition

The machining pattern commands enable machining pattern transition.

Only the alternate machining pattern (G610), two-saddle machining pattern (G620), and front/back

parallel machining pattern (G630, G635) can be switched to the pick-off machining pattern (G650).

However, the pick-off machining pattern (G650) can be switched to all the other machining patterns.

Alternate machining

G610

Machining pattern

cancel

G600

Simultaneous

3-lines machining

G640

Two-saddle

machining

G620

Front/back

parallel

machining

G630

G635

Pick-off,

Center-supportG650

Can be switched to all the

other machining patterns.

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5.3.3 Machining pattern flow

The machining pattern commands should be specified for all the three axis control groups. If you

specify the U0 and W0 arguments in the block of the machining pattern command, each axis does not

move to the fixed point when the machining pattern is switched.

Arguments (U0, W0 and V0) for the machining patterns

U0 specifies that the X axis does not move to the fixed point, W0 specifies that the Z axis does not move

to the fixed point, and V0 specifies that the Y axis does not move to the fixed point.

The axis that moves varies depending on the specified axis control group. $2 moves the turret tool post

(X2, Z2 and Y2 axes) and $3 moves the back headstock (X3 and Z3 axes).

Axis control group $2 $3

Argument U0, W0, V0 U0, W0

Mobile section Turret tool post (X2, Z2, Y2 axes) Back headstock (X3, Z3 axes)

The fixed point varies depending on the machining pattern.

U0 of $2 does not move the turret tool post to the return position.

W0 of $2 does not move the turret tool post to the machining reference point.

V0 of $2 does not move the turret tool post (Y axis) to the center of the main spindle. This argument is

enabled only in the machine of type V.

U0 of $3 does not move the back headstock to the center of the guide bushing.

W0 of $3 does not move the back headstock to the return position or the back machining reference point.

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Program sample

$1 $2 $3

G610.................. Alternate machining G610................... Alternate machining G610.................. Alternate machining

(G611) :

: :

G612 :

: :

M41.................. Backward movement

of turret Z2 axis

:

G611 :

: :

: :

G630.................. Front/back parallel

machining

G630..................... Front/back parallel

machining

G630.................. Front/back s parallel

machining

: G632 G632

: :: M40...................... Forward movement

of turret Z2 axis

: G633 G633

: :


(G611) :

: :

G612 :

: :

G650..................................... Pick-off G650...................................... Pick-off G650..................................... P ick-off

: :


: :M56

G999 G999 G999

N999 N999 N999

M02 M02 M02

M99 M99 M99

% % %

Notes

Be sure to cancel the coordinate system shift command and compensation command before switching the

machining pattern. However, you do not have to cancel the compensation command when switching to

G650.

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5.3.4 Alternate machining (G610)

This machining pattern is the standard machining pattern that is most frequently used. The machining

pattern is useful when the front machining in $1 to perform machining by alternately using a tool on the

gang tool post and a tool on the turret tool post. The machining pattern also enables the back machining

in $3 to perform back machining with a tool on the back 3-spindle tool post.

Command format

$1 $2 $3

G610 G610 U0 V0 Z G610 W0

Axis control group

Specify this command for all the axis control groups $1, $2, and $3.

Arguments

$2 U0: The turret tool post (X2 axis) does not move. If the argument is not specified, the turret

tool post moves to the return position.

$2 V0: The turret tool post (Y2 axis) does not move. If the argument is not specified, the turret

tool post moves to the center of the main spindle. This argument is enabled only in the

machine of type V.

$2 Z : Specify this argument to change the point to which the turret tool post (Z2 axis) moves.

For example, when Z-5.0 is specified, the turret tool post (Z2 axis) moves to the position

5.0 mm away from the forward end position. If the argument is not specified, the turret

tool post (Z2 axis) moves to the forward end position (the position opposite to the gang

tool post).

$3 W0: The back headstock (Z3 axis) does not move. If the argument is not specified, the backheadstock moves to the return position.

This machining pattern automatically enters the queuing state. Cancel the coordinate system shift

command and compensation command before executing the machining pattern command.

If you specify the U0, W0 and V0 arguments in the block of the machining pattern command, each axis

does not move to the fixed point when the machining pattern is switched.

The axes automatically move to the positions shown in the figure below when thealternate machining

patterncommand is executed.

The following commands are necessary for machining that is performed by alternately using a tool on two

tool posts. G611 is initially set when the G610 commands is specified.

G611 .......... Gang tool post select (Selection of a tool on the gang tool post)

G612 .......... Turret select (Selection of a tool on the turret tool post)Specify G611 or G612 for $1.

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Pre-selection of a tool

A tool on the gang tool post and a tool on the turret tool post can be pre-selected in the G610 mode.

In G611 mode (gang tool post select), you can specify a tool (T2000's) on the turret tool post for selecting

the tool while a tool on the gang tool post is machining. Conversely, in G612 mode (turret select), you

can specify a tool (T0100's) on the gang tool post for selecting the tool while a tool on the turret tool post

is machining. To use the pre-selected tool on the gang tool post, switch the G612 mode to the G611

mode. To use the pre-selected tool on the turret tool post, switch the G611 mode to the G612 mode.

CAUTION

To pre-select a turret tool using G611, the distance between the gang tool and the turret tool

must be at least 20.0 mm in radius to prevent interference.

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Operation sample

(1) The turret tool post (X2 axis) moves to its return position at the rapid feed rate.

(2) The turret tool post (Y2 axis) moves to the center of the main spindle at the rapid feed rate.

The turret tool post (Z2 axis) moves to the position opposite to the gang tool post at the rapid feed rate.

The back headstock (Z3 axis) moves to the return position at the rapid feed rate.

X1

Z1

X2

Z3

c

b

M12 M16 M20 M32

b 80.0 80.0 90.0 90.0

c 290.0 290.0 420.0 420.0

(2) Z3 axis

X1 axis Does not move.

Z3 axis Return positionX3 axis Does not move.

(3) Z2 axis

(1) X2 axis

X2 axis Return position of the tool onthe turret tool post

Z2 axis Position opposite to the gangtool

Y2 axis Center of the main spindle

Z3 machine zero point (1) to (3) indicate the operation sequence.

(2) Y2 axis

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Macro specification

Command code G610

Name Alternate machining

Axis control group $1 $2 $3

Axes of axis control

group

G611 X1, Z1, Y1, C1 X3, Z3, C2

G612 X2, Z1, Y2, C1

Superimpose

Coordinate system X1-X2 switching and

Y1-Y2 switching by G611

and G612 commands

Z2: Alignment with the front

machining reference

point

Z3: Alignment with the

machine coordinate

Argument U0: The turret tool post (X2)

does not move. If the

argument is not

specified, the X2 axis

moves to the return

position.

V0: The turret tool post (Y2)


argument is not

specified, the Y2 axis

moves to the center of

the main spindle.

Z : Specify this

argument to change the point

to which the turret tool post

(Z2) moves.

W0: The back spindle (Z3)


argument is not

specified, the Z3 axis

moves to the return

position.

Spindle with which

synchronous feed is

enabled

Main spindle Back spindle

Spindle with which

constant surface speedcontrol is enabled

Main spindle Back spindle

Cutting block interlock Main spindle Back spindle

T command Gang tool post and turret

tool post

Back 3-spindle tool post and

back spindle

Others

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Program sample

$1 $2 $3

G610.................. Alternate machining G610................. Alternate machining G610.................. Alternate machining

(G611)..................... Gang tool select T4100

T2100........... Pre-selection of the tool G00 Z0.5

: G01 Z3.0 F0.1 T41

: G00 Z0.5 T00

G612............................... Turret select :

T0200........... Pre-selection of the tool :

G00 Z0.5 Machining

with

T2100

T4000............................ Back spindle

G01 Z5.6 F0.1 T21

G00 Z0.5 T00

G611......................... Gang tool select

T2500 X17.0............. Pre-selection

of the tool

G00 X9.0 Z0.5 T02

Machining

with

T0200

G01 X12.0 Z1.0 F0.08

Z17.8

X15.2

X17.0 Z18.7

:

:

Notes

Each axis control group should hold the feed per rotation command and feed per minute command as

modal functions.

Specify the main spindle speed command for $1, and specify the back spindle speed command for $3.

You can create a $1 program similar to a twin-turret lathe program assuming the end face of the

workpiece on the front side to be the reference point.

You can create a $3 program similar to a 2-axis lathe program assuming the end face of the workpiece

on the back side to be the reference point.

G610 is a modal G code that is enabled until another machining pattern command is executed.

The turret Z2 axis moves to the position (the forward end position) opposite to the gang tool post.

If you want to change the position of the turret Z2 axis during G610 execution, specify M40 Z .

See .


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5.3.5 Two-saddle machining (G620)

Use this machining pattern for the front machining in $1 and $2 to perform simultaneous machining such

as rough/finish machining and simultaneous thread cutting (different pitches permitted). The machining

pattern can assign the main spindle C axis (C1) to perform machining in $1 with a tool on the gang tool

post or machining in $2 with a tool on the turret tool post. The machining pattern also enables the back

machining in $3 to perform back machining with a tool on the back 3-spindle tool post.

Command format

$1 $2 $3

G620 G620 U0 W0 V0 G620 W0

Axis control groups


Arguments



$2 W0: The turret tool post (Z2 axis) does not move. If the argument is not specified, the turret tool

post moves to the position 5.0 mm away from the end face of the workpiece on the front side.



machine of type V.

$3 W0: The back headstock (Z3 axis) does not move. If the argument is not specified, the back

headstock moves to the return position.





The axes automatically move to the positions shown in the figure below when the two-saddle machining

pattern command is executed.

The following commands are necessary for assigning the main spindle C axis. G621 is initially set when

the G620 command is specified.

G621 .......... Main spindle C axis (C1) at $1 side enabled

G622 .......... Main spindle C axis (C1) at $2 side enabled

Specify G621 or G622 for both $1 and $2.

The commands are disabled when optional main spindle C axis is not mounted.

M12 M16 M20 M32

Main spindle C axis (C1) Optional Optional Standard Standard

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Macro specification

Command code G620

Name Two-saddle machining



group

G621 X1, Z1, Y1, C1 G621 X2, Z2, Y2 X3, Z3, C2

G622 X1, Z1, Y1 G622 X2, Z2, Y2, C1

Superimpose Z2 superimposed on Z1

Coordinate system C1 switching by G621 and

G622 commands

Z2: Alignment of the front

tool nose of the tool

(on the turret tool post)

with the end face of the

workpiece on the front

side.

C1 switching by G621 and

G622 commands

Z3: Alignment with the

machine coordinate

Argument U0: The turret tool post (X2)does not move. If the

argument is not


moves to the return

position.

W0: The turret tool post (Z2)


argument is not


moves to the return

position.



argument is not

specified, the Y2 axismoves to the center of

the main spindle.

W0: The back spindle (Z3)does not move. If the

argument is not


moves to the return

position.

Spindle with which

synchronous feed is

enabled

Main spindle Main spindle Back spindle

Spindle with which

constant surface speed

control is enabled


Cutting block interlock Main spindle Main spindle Back spindle

T command Gang tool post Turret tool post Back 3-spindle tool post and

back spindle

Others

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Program sample

$1 $2 $3

: : :

: : :

G620 ................................ Two-saddle G620................................ Two-saddle G620 ................................ Two-saddle

T0200 T2100 T4100

G00 X16.0 Z1.0 T02 G00 X16.0 Z1.0 T21 G00 Z0.5

G01 X6.0 F0.1 G01 X5.0 F0.1 G01 Z3.0 F0.1 T41

Z39.9 F0.08 Z40.0 F0.04 G00 Z0.5 T00

X9.0Z39.9 F0.08 X7.5 :

:X9.0 : :

: : : T4000............................ Back spindle

Notes


modal functions.

Specify the main spindle speed command for $1 or $2. The constant surface speed control command

is enabled with axis control groups for which the speed command is specified. Specify the back

spindle speed command for $3.


on the front side to be the reference point.

You can create a $2 program in the same manner as for the $1 program, regardless of the movement of

the Z1 axis.

You can create a $3 program with the same X and Z as for a 2-axis lathe program assuming the end

face of the workpiece on the back side to be the reference point.



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5.3.6 Front/back parallel machining (G630)



post and a tool on the back 3-spindle tool post.

Command format

$1 $2 $3

G630 G630 U0 W0 V0 G630 U0 W0 I

Axis control groups


Arguments



$2 W0: The turret tool post (Z2 axis) does not move. If the argument is not specified, the turret

tool post moves to the position 5.0 mm away from the end face of the workpiece on the

back side.



machine of type V.

$3 U0: The back headstock (X3 axis) does not move. If the argument is not specified, the back

headstock moves to the center of the guide bushing.


headstock moves to the retract position. $3 I : Specifies the amount of shift from the zero point for back machining with the Z3 axis.

Specify the I argument when the Z2 axis stroke is too short for drilling with the tool on the

turret tool post for back machining. The Z2 and Z3 axes shift by I argument.





The axes automatically move to the positions shown in the figure below when the front/back parallel

machining pattern command is executed. The axes for back machining move when the G632 or G633

command is executed.

The same commands are necessary for machining that is performed by alternately using two types of

tools.

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Back turret select (G632)

Use this command to perform back machining with a tool on the turret tool post. Specify the back

machining program for $2.

Command format

$2 $3

G632 U0 W0 G632 I

Axis control groups

Specify this command for both $2 and $3.

Arguments





back side.

$3 I : Specifies the amount of shift from the zero point for back machining with the Z3 axis.



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Back 3-spindle select (G633)

Use this command to perform back machining with a tool on the back 3-spindle tool post. Specify the

back machining program for $3

Command format

$2 $3

G633 U0 W0 G633 W1 I

Axis control groups


Argument





back side.





turret tool post for back machining. The Z2 and Z3 axes shift by I argument. If the I

argument is specified in the G633 command, the Z3 axis is not shifted the amount specified

by the argument.


A tool on the turret tool post can be pre-selected in the G630 mode.

In G633 mode (back 3-spindle select), you can specify a tool (T2000's) on the turret tool post for

selecting the tool while a tool on the back 3-spindle tool post is machining. To use the pre-selected tool

on the turret tool post, switch the G633 mode to the G632 mode.

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Operation sample



(2) The back headstock (Z3 axis) moves to the return position at the rapid feed rate. The turret tool post

(Z2 axis) moves to the position 5.0 mm away from the end face of the workpiece on the back side at

the rapid feed rate.

(3) The back headstock (X3 axis) moves to the center of the guide bushing and the back headstock (Z3

axis) moves to the zero point for back machining at the rapid feed rate.

X1

Z1

X2

b

a

Z2

5.0

M12 M16 M20 M32

a 80.0 80.0 90.0 90.0

b 256.0 256.0 346.0 346.0

c 4.0 4.0 4.0 4.0

d 30.0 30.0 70.0 70.0

(2) Z3 axis

(1) X2 axis

X3 axis Center of guide bushingZ3 axis Zero point for back

machining

(2) Z2 axis

(1) to (3) indicate the operation sequence.

(3) Z3 axis

(3) X3 axis

X2 axis Return position of thetool on the turrettool post

Z2 axis The position 5.0mm away from the end face ofthe workpiece on the back side

Back spindle chuckposition (machining data)

Return position on the Z2 axis (c) Back spindle chuck position(machining data) + 5mm

Distance between zero points on the Z2 andZ3 axes (d) Return position on the Z2 axis (c)


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(2) The back headstock (Z3 axis) moves to the return position at the rapid feed rate. The turret tool post

(Z2 axis) moves to the position 5.0 mm away from the end face of the workpiece on the back side at

the rapid feed rate. The back headstock moves toward the back 3-spindle tool post when the

command for the tools T4000's is executed.

X1

Z1

X3

b

a

Z35.0

M12 M16 M20 M32

a 80.0 80.0 90.0 90.0

b 290.0 290.0 420.0 420.0

c 4.0 4.0 4.0 4.0

(2) Z3 axis

(1) X2 axis


(2) Z2 axis

Z3 machine zero point

(1) and (2) indicate the operation sequence.

X2 axis Return position of thetool on the turret toolpost


Back-end face of theworkpiece when G632(selection of tool on theturret tool post) iss ecified for 3

Return position on the Z2 axis (c) Back spindle chuckposition (machining data) + 5mm


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Macro specification

Command code G630

Name Front/back parallel machining



group

X1, Z1, Y1, C1

Superimpose Cancel of Z2

superimposition

Cancel of Z3

superimposition

Coordinate system



argument is not


moves to the return

position.



argument is not


moves to the return

position.



argument is not



the main spindle.

U0: The back spindle (X3)


argument is not


moves to the return

position.



argument is not


moves to the return

position.

I : Specifies the amount

of shift from the zero

point for back

machining with the Z3

axis.

Spindle with which

synchronous feed is

enabled

Main spindle Back spindle Back spindle

Spindle with whichconstant surface speed

control is enabled


Cutting block interlock Main spindle Back spindle Back spindle

T command Gang tool post

Others

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Command code G632


Back turret select



group

X2, Z2, Y2, C2

Coordinate system Z2: Alignment of the back tool nose of the

tool (on the turret tool post) the end face

of the workpiece on the back side.

X3: Alignment with the machine coordinate

Z3: Alignment with the zero point for back

machining

Argument U0: The turret tool post (X2) does not move.

If the argument is not specified, the X2

axis moves to the return position.

W0: The turret tool post (Z2) does not move.

If the argument is not specified, the Z2

axis moves to the position 5.0 mm away

from the end face of the workpiece on

the back side.

I : Specifies the amount of shift from

the zero point for back machining

with the Z3 axis.

T command Turret tool post Alarm


Command code G633

Name Front/back parallel machiningBack 3-spindle select



group

X3, Z3, C2

Coordinate system Z3: Alignment with the machine coordinate



axis moves to the return position.W0: The turret tool post (Z2) does not move.




the back side.

W0: The back spindle (Z3) does not move.


axis moves to the return position.I : Specifies the amount of shift from

the zero point for back machining with

the Z3 axis.

T command Alarm Turret tool post, back 3-spindle tool post,

and back spindle

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Notes


modal functions.

Specify the main spindle speed command for $1. Specify the back spindle speed command for $2 or

$3.



Likewise, you can create $2 and $3 programs similar to a 2-axis lathe program assuming the end face of

the workpiece on the back side to be the reference point.


Be sure to execute the G632 or G633 command for both $2 and $3 after executing the G630 command.

With the G632 command, specify the back machining program for $2. With the G633 command,

specify the back machining program for $3.


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5.3.7 Front/back parallel machining (G635)



post and a tool on the back 3-spindle tool post. The specification in the back-machining program is

different between G630 and G635: With G630, specify the turret for $2 and the 3-spindle for back

machining for $3 in the program. With G635, specify both the turret and the 3-spindle for back

machining for $2 in the program.

Command format

$1 $2 $3

G635 G635 U0 W0 V0 G635 U0 W0 I

Axis control groups


Arguments





back side.



machine of type V.

$3 U0: The back headstock (X3 axis) does not move. If the argument is not specified, the backheadstock moves to the center of the guide bushing.










The axes automatically move to the positions shown in the figure below when the front/back parallel

machining pattern command is executed. The axes for back machining move when the G637 or G638command is executed.

The same commands are necessary for machining that is performed by alternately using two types of

tools.

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Use this command to perform back machining with a tool on the turret tool post. Specify the back

machining program for $2.

Command format

$2 $3

G637 U0 W0 G637 I

Axis control groups


Arguments





back side.




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Use this command to perform back machining with a tool on the back 3-spindle tool post. Specify the

back machining program for $2

Command format

$2 $3

G638 U0 W0 G638 W0 I

Axis control groups


Argument





back side.





turret tool post for back machining. The Z2 and Z3 axes shift by I argument. If the I

argument is specified in the G638 command, the Z3 axis is not shifted the amount specified

by the argument.


A tool on the turret tool post can be pre-selected in the G635 mode.

In G638 mode (back 3-spindle select), you can specify a tool (T2000's) on the turret tool post for

selecting the tool while a tool on the back 3-spindle tool post is machining. To use the pre-selected tool

on the turret tool post, switch the G638 mode to the G637 mode.

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Operation sample



(2) The back headstock (Z3 axis) moves to the return position at the rapid feed rate.

The turret tool post (Z2 axis) moves to the position 5.0 mm away from the end face of the workpiece

on the back side at the rapid feed rate.

(3) The back headstock (X3 axis) moves to the center of the guide bushing and the back headstock (Z3

axis) moves to the zero point for back machining at the rapid feed rate.

X1

Z1

X2

b

a

Z2

5.0

M12 M16 M20 M32

a 80.0 80.0 90.0 90.0

b 256.0 256.0 346.0 346.0

c 4.0 4.0 4.0 4.0

d 30.0 30.0 70.0 70.0

(2) Z3 axis

(1) X2 axis

X3 axis Center of guide bushingZ3 axis Zero point for back

machining

(2) Z2 axis


(3) Z3 axis(3) X3 axis

X2 axis Return position ofthe tool on theturret tool post

Z2 axis The position 5.0mm away fromthe end face ofthe workpiece onthe back side

Back spindle chuck pos ition(machining data)

Return position on the Z2 axis (c)

Back spindle chuck position(machining data) + 5.0mmDistance between zero points on the Z2 andZ3 axes (d) Return position on the Z2 axis (c)


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(2) The back headstock (Z3 axis) moves to the return position at the rapid feed rate.


on the back side at the rapid feed rate. The back headstock moves toward the back 3-spindle tool

post when the command for the tools T4000's is executed.

X1

Z1

X3

b

a

Z35.0

M12 M16 M20 M32

a 80.0 80.0 90.0 90.0

b 290.0 290.0 420.0 420.0

c 4.0 4.0 4.0 4.0

(2) Z3 axis

(1) X2 axis


(2) Z2 axis

Z3 machine zero point

(1) and (2) indicate the operationsequence.

X2 axis Return position of thetool on the turret toolpost


Back-end face of theworkpiece when G637(selection of tool on theturret tool post) isspecified for $3

Return position on the Z2 axis (c) Back spindle chuck

position (machining data) + 5.0mm


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Macro specification

Command code G635




group

X1, Z1, Y1, C1

Superimpose Cancel of Z2

superimposition

Cancel of Z3

superimposition

Coordinate system



argument is not


moves to the return

position.



argument is not


moves to the return

position.



argument is not



the main spindle.

U0: The back spindle (X3)


argument is not


moves to the return

position.



argument is not


moves to the return

position.

I : Specifies the amount

of shift from the zero

point for back

machining with the Z3

axis.

Spindle with which

synchronous feed is

enabled


Spindle with whichconstant surface speed

control is enabled


Cutting block interlock Main spindle Back spindle Back spindle

T command Gang tool post

Others

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Command code G637


Back turret select



group

X2, Z2, Y2, C2

Coordinate system Z2: Alignment of the back tool nose of the

tool (on the turret tool post) with the

end face of the workpiece on the back

side.

X3: Alignment with the machine coordinate

Z3: Alignment with the zero point for back

machining



axis moves to the return position.




from the end face of the workpiece onthe back side.


the zero point for back machining

with the Z3 axis.

T command Turret tool post Alarm


Command code G638

Name Front/back parallel machiningBack 3-spindle select



group

X3, Z3, C2

Coordinate system Z3: Alignment with the machine coordinate


If the argument is not specified, the X2axis moves to the retract position.





the back side.

W0: The back spindle (Z3) does not move.

If the argument is not specified, the Z3axis moves to the return position.


the zero point for back machining with

the Z3 axis.

T command Turret, back 3-spindle tool post, and back

spindle

Alarm

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Program sample

When machining a workpiece with a tool on the turret tool post before a tool on the back

3-spindle tool post:

$1 $2 $3

: : :

G635......... Front/back parallel

machining


machining

G635........ Front/back parallel

machining

T0200 G637......... Front/back parallel

machiningBack turret

select



select

G00 X12.0 Z0.5 T02 T2100

G01 Z15.0 F0.1 G00 X9.0 Z0.5 T21

: G01 X12.0 Z1.0 F0.03

: Z30.0

:G638......... Front/back parallel

machiningBack 3-SP.

Select


machiningBack 3-SP.

select

T4100

:

When machining a workpiece with a tool on the back 3-spindle tool post before a tool on the

turret tool post:

$1 $2 $3

: : :


machining


machining


machining

T0200 G638........Front/back parallelmachiningBack 3-SP.

select


machiningBack 3-SP.

select

G00 X12.0 Z0.5 T02 T2100...... Pre-selection of the tool

G01 Z15.0 F0.1 T4100

: G00 Z0.5

: G01 Z3.0 F0.1 T31

G00 Z0.5 T00

: :



select



select

G00 X9.0 Z0.5 T21Machining

: by T2100

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Notes


modal functions.

Specify the main spindle speed command for $1. Specify the back spindle speed command for $2.



Likewise, you can create $2 programs similar to a 2-axis lathe program assuming the end face of the

workpiece on the back side to be the reference point.


Be sure to specify G637 or G638 for $2 and $3 after G635 specification. With G637 and G638,

specify $2 in the back-machining program.


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Operation sample




on the front side at the rapid feed rate.

The back headstock (Z3 axis) moves to the return position at the rapid feed rate.

The back headstock (X3 axis) moves to the center of the guide bushing at the rapid feed rate.

(3) The back headstock (Z3 axis) moves to the position 5.0 mm away from the end face of the workpiece

on the back side at the rapid feed rate.

X1

Z1

X2

Z3

Z2

5.0 5.0

(2) Z3 axis

(1) X2 axis

X3 axis Center of guide bushingZ3 axis The position 5.0 mm away from

the end face of the workpiece onthe back side

(3) Z2 axis


(3) Z3 axis

(2) X3 axis

X1 axis Does not move.

X2 axis Return position of the toolon the turret tool post

Z2 axis The position 5.0 mm awayfrom the end face of theworkpiece on the front side

Y2 axis Center of the main spindleof the tool on the turret toolpost Y axis

(2) Y2 axis


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Macro specification

Command code G640

Name Simultaneous 3-lines machining


Axes of axis control group X1, Z1, Y1, C1 X2, Z2, Y2 X3, Z3, C2

Superimpose Z2 superimposed on Z1 Z3 superimposed on Z2

Coordinate system Z2: Alignment of the fronttool nose of the tool(on the turret tool post)with the end face of theworkpiece on the frontside

X3: Alignment with the machinecoordinate

Z3: Alignment of the back toolnose of the tool (on the turrettool post) with the end face ofthe workpiece on the back side



argument is not specified,

the X2 axis moves to the

return position.W0: The turret tool post (Z2)


argument is not specified,

the Z2 axis moves to the

return position.

V0: The turret tool post (Y2)does not move. If theargument is not specified,the Y2 axis moves to thecenter of the mainspindle.

W0: The back spindle (Z3) does notmove. If the argument is notspecified, the Z3 axis moves tothe return position.

Spindle with whichsynchronous feed isenabled


Spindle with whichconstant surface speedcontrol is enabled



T command Gang tool post Turret tool post Alarm

Others

Program sample

$1 $2 $3

: : :

: : :

G640...... Simultaneous 3-linesmachining

G640................Simultaneous3-lines machining

G640.................. Simultaneous 3-linesmachining

G00 X5.0 Z1.0 G00 Z1.0

!2!3L1 !1!3L1 !1!2L1

G01 Z15.0 F0.03 G01 Z3.5 F0.03 G01 Z3.5 F0.03

X10.0 G00 Z1.0 G00 Z1.0

Z20.0 : :

: : :

:

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5.3.9 Pick-off, Center support (G650)

Specify this machining pattern after alternate machining (G610), two-saddle machining (G620), and

front/back parallel machining (G630). This machining pattern enables the back spindle to pick off

workpiece and support the long workpiece.

Command format

$1 $2 $3

G650 G650 U0 V0 G650 W0

Axis control groups


Argument





machine of type V.




command before executing the machining pattern command.


does not move to the fixed point when the machining pattern is switched.The axes automatically move to the positions shown in the figure below when the pick-off, center-support

command is executed.

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Operation sample

(1) The turret tool post (X2 axis) moves to its return position at the rapid feed rate; and the back headstock

(Z3 axis) moves to the return position at the rapid feed rate.


The back headstock (X3 axis) moves to the center of the guide bushing at the rapid feed rate.

For the Z3 axis, the coordinate system is set with the end face of the workpiece on the front side as 0.

X1

Z1

X2

Z3

a

M12 M16 M20 M32

a 80.0 80.0 90.0 90.0

(1) Z3 axis

X3 axis Center of guide bushingZ3 axis The coordinate system is setwith the end face of thework iece on the front side as 0

(1) X2axis

(1) and (2) indicate the operation sequence.

(2) X3 axis X1 and Z1 Does not move.

X2 axis Return position of the tool on the turret tool postZ2 axis Does not move.Y2 axis Center of the main spindle of the tool on the

turret tool post Y axis

(2) Y2 axis


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Macro specification

Command code G650

Name Pick-off, center support



group

Depending on the previous

machining pattern


machining pattern

X3, Z3, C2

Superimpose Z3 superimposed on Z1

Coordinate system Depending on the previous

machining pattern


machining pattern

X3: Alignment with the

machine coordinate

Z3: Alignment of the face of

the back headstock cap

nut with the end face of

the workpiece on the

front side



argument is not


moves to the return

position.



argument is not



the main spindle.



argument is not


moves to the return

position.

Spindle with which

synchronous feed is

enabled


Spindle with which

constant surface speedcontrol is enabled



T command Depending on the previous

machining pattern


machining pattern

Back spindle

Others

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Program sample

$1 $2 $3

G610 G610 G610

: :

: :

G99 M03 S1=1500 :

T0100 :

G00 Z85.0 T4000............................ Back spindle

G650..................................... Pick-off G650...................................... Pick-off G650..................................... P ick-off

G00 Z2.0

M24 S2=1500

G98 G01 Z50.0 F1000

M15

!3L1 !1L1

G00 X17.0

G01 X1.0 F0.03

G610 G610 G610

X3.0 : :

: : :

:

Notes

Execute the pick-off command (G650) after alternate machining (G610), two-saddle machining (G620),

and front/back parallel machining (G630, G635). At this time, the machining patterns of $1 and $2

are held. Since the Z3 axis moves superimposed on the Z1 axis in the G750 mode, executing the axis

move command for $3 moves the Z3 axis to the position determined by the Z1 axis workpiece

coordinates.

Position the Z1 axis at cut-off position before specifying the G650 command.

During pick-off operation (G650), you can move the Z2 and Z3 axes to the fixed points of an arbitrary

machining pattern by specifying the G231 command. See .


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5.5 T Functions (T Codes)

The T function determines a tool position where the tool can machine the workpiece. T codes for tool

selection are as follows. T0100 to T0900 are for tools on the gang tool post. T2000 to T3900 are for

tools on the turret tool post. T4100 to T4300 are for tools on the back 3-spindle tool post. T4000 is

for the back spindle.

A tool is positioned by the "T" command.

The queuing position of a tool on the gang tool post can be set arbitrarily as the "Tool Positioning Point

(DIA)" in the machining data.

To machine thin material, set at least about 0.2 mm for the tool queuing point.

Specify the "T" command with a 4-digit number. The first two digits correspond to the tool

number. The last two digits correspond to the compensation number. Specify 00 as a compensation

number in the compensation cancel state.

Command format

T

Argument

: Up to 33 tool numbers can be specified, which is the total of tools (01-09) on the gang tool

post, tools (20-39) on the turret tool post, tools (41-43) on the back 3-spindle tool post, and

the back spindle (40).

: Compensation number of tool nose wear

Pre-selection of a tool with T code

Ordinary T code selection calls the tool that is going to machine the workpiece. If the lathe has two or

more tool posts, a tool on one tool post can be called while the tool on other tool post is machining theworkpiece. This feature is called pre-selection.

With the machining pattern G610, to pre-select a tool on the turret tool post (T2000's) in the G611 mode

and a tool on the gang tool post (T0100's) in the G612 mode.

With the machining pattern G630, to pre-select a tool on the turret tool post (T2000's) in the G633 mode.

With the machining pattern G635, to pre-select a tool on the turret tool post (T2000's) in the G638 mode.

For the machining patterns, see .

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T2231

T21

T2333

T24

32

39

38

T29

T20

T28

35

36

T26T25

T27

37

30

34

T43 T42 T41

T40

T01T02

T03T04

T05T06

T07T08

T09

Tools on the turret tool post

Back spindle

Tools on the back 3-spindle tool post

Tools on the gang tool post

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5.5.1 Tool mounting positions and the types of machining

The following table shows the tool mounting positions and the types of machining when GTF5216

(standard tool holder for M12) is used:

Mounting

positionTool no.

Outer diameter

machiningTool spindle

Outer/inner

diameter machining

and

Tool spindle

Pick-off

Inner diameter

machining in

back machining

Gang tool post 01 T0100

02 T0200

03 T0300

04 T0400

05 T0500

06 T0600

07 T0700

08

T0800

09 T0900

Turret tool

post

20 T2000

21 T2100

22 T2200

23 T2300

24 T2400

25 T2500

26 T2600

27 T2700

28 T2800

29 T2900

30 T3000

31

T3100

32 T3200

33 T3300

34 T3400

35 T3500

36 T3600

37 T3700

38 T3800

39 T3900

Back spindle 40 T4000

Back

3-spindle tool

post

41 T4100

42 T4200

43

T4300

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5.5.2 Tools on the gang tool post

Command format

TQ1 H X Z Y A K3 E

Argument

Q1: Specify this argument to select a tool without moving the currently machining tool to the

positioning point. If the Q1 argument is not specified, the machine selects a tool after the

currently machining tool moves to the position ("Tool Positioning Point (DIA)" + maximum

DIA value of tool set data between current and next tool).

H : Specify the distance by which the currently machining tool moves from the material outer

diameter specified in the machining data. If the H argument is not specified, the tool moves

to the position ("Tool Positioning Point (DIA)" + maximum DIA value of tool set data

between current and next tool).

X : Specify the X1 axis work coordinate after tool selection. If the X argument is not specified,

the tool moves to the positioning point.

Z : Specify the Z1 axis work coordinate after tool selection. The Z axis does not move unless

the Z argument is specified.

Y : Specify the Y1 axis work coordinate after tool selection. If the Y argument is not specified,

the tool moves to the work zero point.

A : This argument is valid for only pre-selection of a tool (T0100's) on the gang tool post when

the G612 command is specified.

If the X argument is specified, specify the Z1 work coordinate effective when the selected

tool starts moving to the specified position in the direction of X1 axis. If the A argument is

not specified, the machine moves the selected tool to the X1 axis regardless of the Z1 axis

work coordinate.

K3: The Z3 axis (back spindle) becomes the target Z axis after tool selection. The default target

axis is the Z1 axis. Only a number in the T0100's of the machining pattern G600 or G611

can be selected. The C2 axis (back C axis) is enabled as the target C axis. To change the

X axis and C axis back to the original target axes (Z1 and C1), execute G611 and G600.

E : Specify this argument to index the main spindle during tool selection. The specification is

valid at transition from the turning process to the secondary machining process. If the tool

pre-selection argument and the K3 argument are specified together, the specification is

invalid.

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What is a positioning point?

Positioning point = value specified for "Bar Stock O.D." in the machining data + value specified for "Tool

Positioning Point (DIA)" in the machining data + the DIA value of the tool set data of the specified tool

Note

Setting and calling of tools for secondary machining that are mounted on the gang tool post:

Observe the following if a tool for secondary machining mounted on the gang tool post is beyond the tool

nose reference position in the diametrical direction (direction of X1 axis):

Set the protrusion length from the tool nose reference position for the DIA value of the tool set

data that corresponds to the tool number.

In this case, you do not have to set the protrusion length from the tool nose reference position for the

"Tool Positioning Point (DIA)" in the machining data. For the tool positioning point in the machining

data, generally set about 1.0 mm, or set 1.0 mm or more depending on the tool to be mounted.

After calling the tool mounted beyond the tool nose reference position, you do not have to shift the

coordinate system of the diametrical direction in the program. The tool is moved to the positioning

point when the selection is completed.

Value specified for"Tool Positioning Point (DIA)" in the machining data

Positioning point

Tool positioning point

Diameter value of the tool set dataof the specified tool

Value specified for"Bar Stock O.D." in the machining data

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Operation sample

T

(1) The currently selected tool moves to the position ("Tool Positioning Point (DIA)" + maximum DIA

value of tool set data between current and next tool) at the rapid feed rate.

(2) While keeping the X1 axis at the position (1), the machine moves the specified tool to the position

(Y1 axis) at the rapid feed rate.

(3) The specified tool moves to the positioning point at the rapid feed rate.

Positioning

Material

T0300 T0400

T0300 T0400 T0300 T0400 T0300 T0400

(1) The currently

selected tool moves

to the position

("Tool Positioning

Point (DIA)" +

maximum DIA

value of tool set

data between

current and next

tool).

(2) While keeping the

position ("Tool

Positioning Point

(DIA)" + maximum DIA

value of tool set data

between current and

next tool), the machine

moves the specified

tool to the position.

(3) The specified

tool moves to

the positioning

point.

Note

If an end-face drilling tool is currently selected or specified, the specified tool moves from the current

position directly to the positioning point.

TQ1

(1) The specified tool moves from the current position directly to the positioning point at the rapid feed

rate.

Positioningpoint

Material

T0300 T0400

T0300 T0400

(1) The specified toolmoves from thecurrent positiondirectly to thepositioning point.

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TH

(1) The currently selected tool moves to the position ("Bar Stock O.D." in the machining data + value

(diameter) specified by the H argument) at the rapid feed rate.




Positioningpoint

(2) While keeping the position"Bar Stock O.D." + valuespecified by the Hargument, the machinemoves the specified tool tothe position.

(1) The currentlyselected tool movesto the position ("BarStock O.D." + valuespecified by the Hargument).

Material

T0300 T0400

T0300 T0400 T0300 T0400

H/2

T0300 T0400

(3) The specified toolmoves to thepositioning point.

TX

(1) The currently selected tool moves to the position ("Bar Stock O.D."+ "Tool Positioning Point

(DIA)" + maximum DIA value of tool set data between current and next tool) at the rapid feed rate.



(3) The specified tool moves to the position specified by the X argument at the rapid feed rate.

Positioning

point

(3) The specified tool

moves to the

position specified

by the X argument.

(1) The currently selected

tool moves to the

position ("Bar Stock

O.D."+ "Tool

Positioning Point (DIA)"

+ maximum DIA value

of tool set data).

Material

Position

specified

by the X

argument

T0300 T0400

T0300 T0400 T0300 T0400T0300 T0400

(2) While keeping the position

("Tool Positioning Point

(DIA)" + maximum DIA value

of tool set data between

current and next tool), the

machine moves the specified

tool to the position.



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TY

(1) The currently selected tool moves to the position ("Bar Stock O.D."+ "Tool Positioning Point



specified by the Y argument (Y1 axis) at the rapid feed rate.


Positioning

point

Material

(1) The currently selected

tool moves to the position("Bar Stock O.D."+"Tool

Positioning Point (DIA)" +

maximum DIA value of

tool set data).


(Y axis) moves to theposition specified by the

Y argument.

T0300 T0400

T0300 T0400 T0300 T0400 T0300 T0400


moves to thepositioning point.

Position

specified

by the Y

argument

TZ

(1) The currently selected tool moves to the position ("Bar Stock O.D." + "Tool Positioning Point




(3) The specified tool moves to the positioning point ("Bar Stock O.D." + "Tool Positioning Point

(DIA)" + DIA value of tool set data of the specified tool), and the Z1 axis moves directly to theposition specified by the Z argument at the rapid feed rate.

(1) The currently selected tool

moves to the position

("Bar Stock O.D." + "Tool

Positioning Point (DIA)" +maximum DIA value of tool

set data).

(3) The specified tool (X1 axis)

moves to the positioning

point, and the Z1 axis

moves to the positionspecified by the Z

argument.

T0300

T0300 T0400T0300 T0400


(Y axis) moves to the

position specified

by the Y argument.



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5.5.3 Tools on the turret tool post

Command format

TX Y A E

Arguments

X : Specify the X2 axis work coordinate for positioning after tool selection. If the X argument

is not specified, the tool on the turret tool post remains its return position.

Y : Specify the Y2 axis work coordinate for positioning after tool selection. If the argument is

not specified, the Y2 axis moves to the center of the main spindle. This argument is

enabled only in the machine of type V.

A : This argument is valid for only pre-selection of a tool (T2000's and T3000's in the G611

command). If the X argument is specified, specify the Z1 work coordinate effective when

the selected tool starts moving to the specified position in the direction of X2 axis. If the A

argument is not specified, the machine moves the selected tool to the X2 axis regardless of

the Z1 axis work coordinate.

E : Specify this argument to index the front spindle or back spindle during tool selection. The

specification is valid at transition from the turning process to the secondary machining

process. If the machining pattern is for machining with the front spindle, the front spindle

(C1 axis) is indexed. If the machining pattern is for machining with the back spindle, the

back spindle (C2 axis) is indexed.

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5.5.4 Tools on the back 3-spindle tool post

Command format

TX Z W Q1 E

Arguments

X : Specify the X3 axis work coordinate for positioning after tool selection. If the X argument

is not specified, the tool moves to X0.

Z : Specify the distance (Z3 axis) by which the currently machining tool moves from the return

position. If the Z argument is not specified, the back spindle Z3 axis moves away 5.0 mm

from the tool bit position at the maximum protrusion, and then the machine selects the target

tool.

W : Specify the distance (Z3 axis) by which the currently machining tool moves from the current

position. If the W argument is not specified, the back spindle Z3 axis moves away 5.0 mm

from the tool bit position at the maximum protrusion, and then the machine selects the target

tool. For the W argument, you can specify only a value up to zero.

Q1 The specified tool is selected without the back spindle Z3 axis (of the currently machining

tool) being retracted. If the Q1 argument is not specified, the back spindle Z3 axis moves

away 5.0 mm from the tool bit position at the maximum protrusion.

E : Specify this argument to index the back spindle (C2 axis) during tool selection. The

specification is valid at transition from the turning process to the secondary machining

process.

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Operation sample

TW

When selection of a tool on the back 3-spindle tool post is specified, the back headstock moves only the

distance specified by the W argument, and the specified tool is selected.

Zero point for back

machining

Back Spindle Chuck POS

T43

T41

T42

Workpiece

Distance specified by the W argument

a

M12 M16 M20 M32

a 60.0 (50.0) 60.0 (50.0) 145.0 (135.0) 145.0 (135.0)

Note: Values for the machine with the optional tool spindle of back 3-spindle tool post, S6, are enclosed

in parentheses.

Notes

An alarm is issued if a value specified for the W argument is not up to zero.

You cannot specify the Z and W arguments together.


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5.5.5 Back spindle

Command format

T4000

Ope

Date post:	03-Jun-2018
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