Machine shop

Machine shop is a manufacturing , repair or reconditioning shop of mechanical parts.

It contains all types of machines likes drilling,Lathe(turning),boring,shaping,slotting machine.

It performs different operations like turning,drilling,milling,boring,slotting,gear hobbing,grinding.

Machines list for Machine Shop

• Manual Lathe
• Centre Lathe
• Horizontal Boring Machine
• Vertical Boring Machine
• Milling Machine
• Slotting Machine
• Shaper Machine
• Drilling Machine
• Planning Machine
• Gear Hobbing
• Saw cutting Machine
• Centering Machine
• Surface Grinding Machine
• Cylindrical Grinding Machine
• Hydraulic Press
• Cranes

Manual Lathe machine

A lathe is a machine tool which rotates the work piece on its axis to perform various operations .Operations are cutting , sanding ,knurling,drilling,facing,turning.

Specification of a manual Lathe Machine

• Max swing over Bed.
• Max swing over cross slide.
• Length of gap in front of face plate
• Spindle sleeve bore taper.
• No of spindle speed.
• Feed longitudinal.
• Cross feed.
• Thread metric pitch.
• Thread- Whitworth pitch:(Ex-2 TPI to 72 TPI).
• Module

CENTRE LATHE

A lathe center ,often shortened to center,is tool that has been ground to a point to accurately position a work piece on an axis.

The primary use of a center is to ensure concentric work is produced.This allow the work piece to be transferred between machining operations without any loss of accuracy.

Specifications of Centre Lathe

• Maximum Swing Over Bed.
• Swing Over Carriage.
• Maximum Distance between centers.
• Maximum Weight between centers.
• Range of spindle speed.
• Taper in spindle or Tail stock.
• Screw cutting range.
• Feed range
• Spindle bore.
• Taper in tail stock blow.
• Cross Travel of Tail stock.

Parts of Center Lathe Machine

• Head stock
• Carriage
• Bed
• Tail stock
• Steady rest
• Feed shaft
• Lead Screw
• Chuck

Motions in the Machines

• Rotary Motion
• Translatory motion

Working Posibilities

• Plain turning
• Taper turning
• Grooving
• Threading
• Knurling
• Boring
• Counter boring
• Taper boring
• Parting
• Centering
• Drilling

Preventive maintenance of Center Lathe machine

• Bed Cleaning.
• Oiling.
• Re torquing of foundation bolt.
• Lubrication oil checking of head stock.
• Filter cleaning of Lubrication pump.
• V belt checking.
• Jaw cleaning.
• Lead screw checking.
• Carriage Lubrication checking.
• Direction clutch checking.
• Tail stock lubrication.
• All lever function checking.

Instruments Used

• Dial test Indicator.
• Vernier calliper.
• Micrometer
• Steel rule
• Steel Tape.

Tools Used

• Brazing tools
• Roughing tools
• Insert tool
• Side tool
• V-Tool
• Crank tool
• Form tool
• File

Radial Drilling Machine

A radial drilling machine is a gear drill head that is mounted on an arm assembly that can be moved around to the extent of its arm reach.

Specifications Radial Drilling Machine

• Drilling in Solid steel:(Ex-60mm).
• Drilling in cast iron.
• Taping Metric thread upto :_
• Maximum/Minimum drilling radius.
• Diameter of column sleeve.
• MT in spindle Nose.
• Spindle speed.
• Feed range.

Parts of Drilling Machine

• Spindle
• Sleeve
• Column
• Head
• Work table
• Base

Work Posibilities

• Drilling
• Reaming
• Boring
• Counter boring.
• Tapping
• Counter Sinking

Maintenance of Drilling Machine

• Lubrication is important to remove the heat and friction.
• Head gear box oil level checking.
• Greasing required.
• Lead screw and Nut lubrication is must important.

Universal Milling Machine

A universal milling machine is a machine tool that removes metal ,as the work fed against a rotating multi point cutter.

The cutter rotates at a high speed .Because of the multiple cutting edges it removes metal at a very faster rate.

Specification of Milling Machine

Capacity

• Long Traverse-(Ex-1000mm).
• Cross traverse.
• Vertical Traverse.
• Swivel of table to other side-(Ex-45 degree).
• Maximum safe weight-(Ex-300kg)

Speed

• Number of Speeds./Speed range.

Parts of Milling Machine

• Milling head
• Bed/table
• Column
• Knee
• Spindle
• Spindle Gear Box
• Feed Gear Box
• Feed Motor
• Spindle Motor

Maintenance of Milling Machine

• Check Spindle Gear Box Oil level.
• Check Feed Gear Box Oil level.
• Bed Lubrication should be proper.
• Check Clutch.

Horizontal Boring Machine

Horizontal boring and milling machines are the machine tools which are intended for work in heavy machinery shop.

They can be used for milling ,drilling and boring operation.

A big range of feed and speed with continuous guarantees their economic exploitation when applying various tools.

Specifications of Horizontal Boring Machine

Capacity-

• Diameter of working spindle.
• Taper in working spindle.
• Maximum boring depth.
• Horizontal protrusion of head stock.
• Length of head stock vertical feed.
• Length of column horizontal feed.
• Standard Bed length.
• Range of spindle speed.

Range of feed-

• Head stock horizontal feed.
• Head stock vertical feed.
• Spindle horizontal feed.

Parts of Horizontal Boring Machine

• Machine bed
• Bed cover
• Column
• Column base
• Head stock
• Main drive of Spindle
• Reduction gear box of column feed
• Reduction gear box of head stock feed
• Feed box of column feed
• Feed box of head stock feed
• Blocking of drilling feeds
• Control station
• RAM

Working Possibilities

• Face milling
• End Milling
• Drilling
• Spot facing
• Taper cutting
• Thread cutting
• Boring
• Counter boring
• Open slot cutting
• Turning
• Forming
• Taper boring
• Key way cutting
• Measuring

Lubrication-(Check and maintain Oil level of)

• Bed Lubrication unit.
• X/Y/Z axis gear box.
• Coolant tank.
• Rotary table.
• Bearing of main Spindle

Maintenance of Horizontal Boring Machine

• Clean and Oil the machine.
• Check lubrication pumps and clean the filter.
• Maintain Oil Level of all Gear Boxes.
• Check Locking unit of all axis.
• Lubricate the rope of counter weight.
• Clean Air Filter.

Slotting Machine

Slotting machine falls under the category of reciprocating type of machine tool.

It is similar to shaper and planner.It works on the same principle of shaper machine.

In slotting machine ram holding the tool and reciprocates in a vertical axis.

Specifications of Slotting Machine

• Maximum Stroke of Ram.
• Forward tilt of RAM.
• Vertical adjustment of Ram.
• End Table top surface.
• Table diameter of working surface.
• Longitudinal travel of table.
• Cross travel of table.
• Speed range of RAM(Stroke & return).
• Feed and rapid speed range of table.

Parts of Slotting Machine

• RAM
• Column
• RAM guide.
• Table.
• Bed.
• Pendant
• Indexing system
• Telescopic cover.
• Hydraulic unit.
• Lubrication System for RAM.

Maintenance of slotting machine

• Open telescopic cover and clean the bed.
• Clean the Oil filter of Lubrication pump.
• Tighten the longitudinal box nut.
• Check Oil supply to Ram.
• Check the Hydraulic oil condition.

Vertical Boring Machine

In this Machine work is rotating fastened to a horizontal table.The table having jaws,which hold the work piece.

Specification

• Max turning diameter.
• Maximum turning diameter with head.
• Table diameter.
• Maximum size of tool.
• Maximum weight of work.
• Number of table speeds.
• Speed of table minimum to maximum.
• Range of feeds/vertical and horizontal.
• Overall power required.

Parts of Machine

• Bed
• Table
• Left column
• Right column
• Cross rail
• Top Beam
• Tool bar
• Tool holder
• Feed motor
• Table Motor
• Table Gear box

Types of machine

• Rotary Motion
• Translatory motion.

Operations

• Turning
• Taper Turning
• Threading
• Grinding
• Copying
• Forming
• Boring
• Step turning
• Counter Boring
• Facing

Lubrication

• X and Z axis guide.
• Hydraulic tank.
• Head feed gear boxes.
• Ram vertical lead screw.
• Coolant device

Maintenance

• Check and oil the machine.
• Maintain hydraulic oil level and condition.
• Pump performance observation.
• Check all gear boxes and oil condition.
• Check ball screw/lead screw and its lubrication.
• Clean all telescopic cover.

SAW MACHINE

A saw is a tool that uses a hard blade or wire with abrasive edge to cut through softer material.The cutting edge of a saw is either a serrated blade or abrasive.

Sawing machine is a long blade cutter which moves against the job placed on the work table.The job is accomplished by the reciprocating motion of saw against the job.

Specification

• Maximum diameter that can be cut.
• Power specified.
• Cutting speed.
• Rotating speed.
• Feed .
• TPI-Teeth per inch

Parts of machine

• Working Bed.
• Machine Bed
• Tool holder
• Blade
• Head stock
• A.C motor
• Belt drive

Maintenance

• Check hydraulic unit regularly.
• Check locking of job holder.
• Coolant system maintenance.

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