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FABRICATION OF SLOTTING

MACHINE USING BEVELGEAR

 PROJECT GUIDE;

R HARI SUDHAN

  Asst. Professor

  Dept of   mechanica en!ineerin!

  PROJECT DONE "#;

  SREEJU.R$%&%'''(%)%*)+

  SREENATH , G$%&%'''(')%*-+

  TON# THOAS$%&%'''(%)%/0

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CONTENT

A"STRACT

INTRODUCTION

COPONENTS

DISCRIPTION O1 COPONENTS 2OR,ING

DIAGRA

ERITS3DEERITS

APP4ICATIONS

CONC4UTION

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ABSTRACT

 

 The main o56ecti7e of this pro6ect is to mo8if9 the sottin!machine 59 repace the :ic< retrn mechanism. In this =e a8optthe strai!ht 5e7e !ear an8 cran< mechanism for con7ert therotar9 motion in to 7ertica motion. The strai!ht 5e7e !ear

recei7es rotar9 motion from motor an8 pro7i8e8 to cran< shaft. The rotation of cran< ma<es 7ertica motion.

 This 7ertica motion se8 to sottin! operation 59 sin!connectin! ro8. This sottin! machine can achie7e hi!h accrac9>5etter spee8 ratio> ess noise> 5etter operationa contro.

1a5ricate8 sottin! machine can 5e mo8ifie8 59 sin!pro!ramma5e contro s9stem. As to concern con7entionasottin! machine it ha7e ess component an8 can 5emanfactre8 in reia5e si?e an8 cost.

 Therefore =e 8eci8e8 to fa5ricate THE S4OTTING ACHINE

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INTRODUCTION

In an9 manfactrin! nit sottin! machine isse8 for ma<in! sots an8 <e9 =a9s 3!roo7es. Apartfrom this or8inar9 sottin! machine =or<in! principe=e a8opte8 5e7e !ear 3 cran< ai!nment s9stem forpo=er transmission. The fa5ricate8 sottin! machine

main9 8esi!ne8 59 sin! strai!ht 5e7e !ear. Strai!ht5e7e ha7e hi!h 7eocit9 transmission capacit9 an8ess noise. The 5e7e !ear is connecte8 to cam shaftthe cam shaft transmit rotar9 motion in to 7erticamotion.

 This 7ertica motion se8 to sottin! operation 59

sin! connectin! ro8. This sottin! machine canachie7e hi!h accrac9> 5etter spee8 ratio> ess noise>5etter operationa contro. 1a5ricate8 sottin! machinecan 5e mo8ifie8 59 sin! pro!ramma5e contros9stem. As to concern con7entiona sottin! machine itha7e ess component an8 can 5e manfactre8 inreia5e si?e an8 cost.

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COMPONENTS

"ase

Comn

Sa88e

Rotar9 ta5e Ram an8 too hea8

"e7e !ear

Cran<

Cran< shaft

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PARTS DISCRIPTION

"ASE

It is

the hea79 castin! ma8e of cast iron .It spport a the

parts of the sotter CO4UN

  It is a hoo= castin! inte!ra =ith 5ase. The8ri7in! mechanism is pace8 insi8e the comn

"EE4 GEAR  T=o important concept in !earin! are pitch srface

an8 pitch an!e. The pitch srface of an or8inar9 !earis in the shape of a c9in8er. The pitch an!e of a !earis the an!e 5et=een the face of the pitch srface an8

the aBis.

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SADD4E

  The saddle moves away from the column along the guide ways provided on

the base.

RA AND TOO4 HEAD

  The ram reciprocates along the guide way produced on the face of the

column. The ram has a tool head. The cutting tool is fitted in the tool head.

CRAN, 

  It is a rotatin! or si8in! piece in a mechanica in<a!e se8

especia9 in transformin! rotar9 motion in to inear motion or7ice 7ersa. The cam is se8 to 8ei7er pses of po=er to cran<shaft.

CRAN, SHA1T

  Connecting rods converts rotating motion in to linear motion. As aconnecting rod is rigid. It may transmit either a push or a pull and so the rod

may rotate the

crank through both halves of a revolution

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WORKINGThe slotting machine consists of straight bevel gear.

Which receive motion from the driving unit. The driving unitmust be controlled by speed controlling system. This provided

the various feed speed rate. The straight bevel gear motion

directly transmits to the crank in transverse direction of the

input. The crank mechanism is used to control the feed rate.

The crank rotation makes reciprocating motion to the

crankshaft. The crank shaft receive motion from the crank and

 provided to the tool arrangement. All arrangements were

supported by bearing linkage. Bearing linkage help to support

all the parts and limiting all rotating parts

The crankshaft end connect to the tool arrangement by

welding. Hence tool moves vertically in upward and down

ward direction.

In this the bevel gear and crank mechanism reduces the

noise and also reduce the wear forces.

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VIEW OF MACHINE

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SKETCH VIEW OF FABRICATED

SLOTTING MACHINE

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ADVANTAGES

The number of component is less

The operation is less noise

Can able to achieve more accuracy in operation

ess power input source is re!uired

ess maintenance

Can able to modify by programmable control system

Cost of production of machinery is less

Incredible depth can be achieve

"imple working principle "imple control system

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APPLICATIONS

#eyways in the boss of a pulley or gear can be machined without

resorting to a dedicated broaching setup.

$ovetail slides

Internal splines

#eyway cutting in blind holes Cam drums with tool paths of the type that in C%C milling terms

would re!uire &' or ('a)is contouring or turn'mill cylindrical

interpolation

It is even possible to obviate wire*$+ work in some cases. "tarting

from a drilled or cored hole, a shaper with a boring'bar type tool can

cut internal features that don-t lend themselves to milling or boring

such as irregularly shaped holes with tight corners/.

 

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QUESTION

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