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Grinding Machines

Ayshwarya Sharma, Vaishwath Shankar, Salil Ali Rizvi, Naveen Santosh,Varun Khosla,Soham Roy,Avinash Sharma,Govmeet Chadda,Vishesh Saran,Anand Kumar

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Grinding is a process of Metal Cuttingwhich is characterised by:

- Slow material removal rate.

- High surface finish.

- Multiple cutting points.

- Rotating tool (grinding wheel).

- Finishing operation.

What is Grinding?

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The grinding machine consists of apower driven grinding wheel spinningat the required speed and a bed with afixture to guide and hold the work-

piece.Grinding machines remove materialfrom the workpiece by abrasion, whichcan generate substantial amounts of

heat; they therefore incorporate

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Contents:

MachineStructure

ControlSystems

Spindles

Guideways

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Grinding cylindrical jobs.

Cylindrical GrindingMachines

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Houses the feed motors, drive motors, guideways, machine bedcoolant pump, etc.

Machine Structure

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DriveMotor

MachineBed

CoolantPump

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Consists of Push Button system for switching the motors on andoff and manual Wheel Systems for longitudinal and cross feed.

Control Systems

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Cross feedLongitudinal Feed

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Consist of a Grinding wheel mounted on a wheel head and acentre dog where the work piece is rotated.

Spindle

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Grinding Wheel

Centre Dog

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Open Type Dovetail guideways are used in Cylindrical Grinding

Guideways

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Open dovetail

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Grinding Flat Surfaces of jobs.

Surface GrindingMachines

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Consists of Wheel mechanism for longitudinal and cross feeds.

A provision for turning the table to enable angular grinding is

also shown.

Control Systems

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Longitudinal feed

Transversefeed

Vertical feed

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Open V type guideways are used in Cylindrical Grinding.

Guideway

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Open VtypeGuideway

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Consists of Grinding Wheel Mounted on Arbor.

Also shown is magnetic chuck upon which the work piece is held.

Spindle

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Magnetic chuck

GrindingWheel

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Grinding cylindrical jobs without use ofa centre dog.

Centreless Grinding

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Consists of Machine Bed, motors, control systems, Spindle head,control wheel etc.

Machine Structure

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Machinebed

Cli k i dd i

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Consists of Grinding wheel, Control wheel, and work piecesupport.

Spindle

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Grindingwheel

ControlWheel

Cli k i dd i

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Consists of Push button system for motors, hand wheel mechanisms for adjustingthe position of grinding wheel, control wheel and gap length.

Control Systems

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motor

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Thank You.

And have a good day.