Post on 08-Apr-2018
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Numerical Control
NC - KS B 0125 (1975)
Numerical Control
NC - KS B 0125 (1975)
Circuit
Circuit Machine
MachineServo
ServoWork
-Piece
Work
-Piece
TapeDrawing
1-1 N C ?
1-1 N C ?
NC FLOW CHART
NC FLOW CHART
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CLASSIC M/C
NC M/C
CNC M/C DNC( direct numerical control )
FMS( flexible manufacturing system)
FA( factory automation
CLASSIC M/C
NC M/C
CNC M/C
DNC( direct numerical control )
FMS( flexible manufacturing system)
FA( factory automation
1-2 MACHINE TOOLS
1-2 MACHINE TOOLS
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1-3 Area of M/C
1-3 Area of M/C
CNC M/C
RANGE
Exclusive M/C
Classic M/C
Product lot No.
P
R
OD
U
C
T
C
O
S
T0
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1-3-1 Part adaptation
1-3-1 Part adaptation
Exclusive M/C
CNC M/C
Classic M/C
L
O
T
Parts variation
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Make
P/G
Part P/G
Tape
Main Processor
Translate Calculate
Post Pro-
cessor
Punching
Pc
CL File
1-4 CNC structure1-4 CNC structure
Part draw Make Plan
Auto P/G
TABLEController
Electric power
Supply control circuit
Make pro
-cess sheet
Tool Position
calculate
Detector
Detector
X-axis servo
motor
Ball screw
Y-axis servo
motor
Manual P/G
Command Tape
Tape punch
M/C
Micro
Computer
Controller
Interface
Circuit
Servo
mechanism
T
A
P
E
R
E
A
DE
R
Detector
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1-5 Ball screw1-5 Ball screw
Screw axis
Return news
Nut
Ball
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2-1 Positioning2-1 Positioning
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2-1-1 Linear interpolation2-1-1 Linear interpolation
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2-1-2 Contour2-1-2 Contour
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3-1 CNC LATHE3-1 CNC LATHE
Cover
Control Box
Tool Post
Head Stock
Bed
Moniter
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Velocity (m/min)
3 5 10 50 100 200 300 500400
PolycrystallingDiamond or CBN
3-3 CNC TOOLS3-3 CNC TOOLS
High speed steelHigh speed steel
Micro alloyMicro alloy
Cemented carbideCemented carbide
sermetsermet
CeramicsCeramics
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4-1 Consist of Block4-1 Consist of Block
N
S
E
q.
N
o
P
R
E
P
A
R
A
T
I
O
N
X (Y) Z
C
O
O
R
D
IN
A
T
E
F
F
E
E
D
S
S
P
I
N
D
L
E
R
P
M
T
T
O
O
L
M
S
U
B
F
U
C
T
I
O
N
Exp. )N00 G01 X30.0 Z-30.0 F0.2 T0101 M08 ;
X, Y, Z (U, V, W) input orderly .
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4-2 Conception of Coordinate4-2 Conception of Coordinate
Right coordinate Left coordinate
H
E
A
D
S
T
O
C
K
+ X
+ Z
W/P
H
E
A
D
S
T
O
C
K+ X
+ Z
W/P
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4-3 Right coordinate4-3 Right coordinate
A
C
B
+Z
+Y
+X
Z
Y
X
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4-4 Absolute system4-4 Absolute system
30
20
10
0 10 20 30
A(10, 10)
x
y x = 22 - 10 = 12
y = 30 - 10 = 20
B(22, 30)
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4-4-1 Incremental system4-4-1 Incremental system
30
20
10
0 10 20 30
A(10, 10)
B(12, 22)
x
y x = 22 - 10 = 12
y = 30 - 10 = 20
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4-5 Program origin4-5 Program origin
Program origin (X0.0 Z0.0).Decide Origin point Z axis indicate line.
Program origin (X0.0 Z0.0).Decide Origin point Z axis indicate line.
A B C D
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4-6 Set up Coordinate4-6 Set up Coordinate
Present position
Through Indicate point
Auto -ReferencePoint Return
MachineOrigin
X 100.0
Z 50.0
X 150.0
Z 100.0
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4-7 Spindle function4-7 Spindle function
- Calculate formula of Cutting condition
V = D N
1000
N : Spindle (rpm)
D : Diameter(mm)
V : Cutting speed (m/min)
- Constant speed control (G96) : Exp. ) G96 S100 M03
- Spindle RPM (G97) Exp.) G97 S1000 M03
- Spindle max. (G50) : Use G50 and next G96,
Exp.) G50 S2000 Control Under RPM 2000rpm .
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4-8 Miscellaneous Function4-8 Miscellaneous Function
Code
M00
M01
M02
M03
M04
M05
M08
M09
Function
Program stop
Optional stop
P/G end
Spindle CW
Spindle CCW
Spindle stop
Coolant on
Coolant off
Code
M30
M98
M99
Function
Program end, Return 1-st block
Sub Program Call
Sub Program End
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4-9 Tool offset4-9 Tool offset
T
Tool FunctionTool offset No.(01 - 99)
Tool selection No. (01- 99)
T 02 00Offset call
Tool No. Preparation to start
T 02 02
Command to tool offset - - - (Start to work)
T 02 00
Cancel to tool offset - - - (Work end )
( )
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5-1 (1)5-1 (1)
G
G 0 0
G 0 1
G 0 2
G 0 3
G 0 4
G 0 9
G 2 0
G 2 1
G 2 7
G 2 8
G 2 9
G 3 0
G 3 2
G 4 0
G 4 1
G 4 2
0 1
0 0
0 6
0 0
0 0
0 1
0 7
Positioning in Rapid ( )
Linear interpolation
(CW)
(CCW)
(dwell)
Normal position
Input inch
Input metric
ZRN check
ZRN
Return to ZRN
Return to 2 - nd ZRN
Threading
Radius compensation cancel
Left
Right
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5-1-1 (2)5-1-1 (2)
G
G 5 0G 5 2
G 5 3
G 7 0
G 7 1
G 7 2
G 7 3G 7 4
G 7 5
G 7 6
G 9 0
G 9 2
G 9 4G 9 6
G 9 7
G 9 8
G 9 9
0 0
0 1
0 2
0 5
Coordinate Set up, Max. RPMLocal coordinate
Machine coordinate
Finish cycle
Rough cycle
Facing Rough
CopyingZ direction peck drill
X direction groove
Threading
Cutting cycle A
Thread
Cutting cycle BConstant speed control
Indicate RPM
(mm/min)
(mm/rev)