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Area of Technology:Engineering Sciences

Title of the Innovation: Centerless Grinding Machine

Brief About Innovation

SALIENT FEATURES:

Centerless grinding machine is designed mainly for through feed grinding, but the machine can be also be converted into plunge grinding or CNC version mode. The machine has a stationary grinding wheel head and a work rest which moves along with the regulating wheel head.The machine can be utilized for grinding both soft as well as brittle parts and can be used for grinding a variety of high precision components such as motor shafts, valve spools, piston rods, cylinder sleeves, plungers, shock absorber shafts, gear box shafts, preparing bright bars as raw materials for multi-spindle operations etc. to a high precision

SPECIFICATIONS:

Work piece diameter	Max: 150mm Min : 8.5mm
Grinding wheel	New: 610mm (24") Worn: 410mm (17")
Grinding wheel width	508 mm (20")
Grinding wheel Bore diameter	304.8mm (12")
Grinding surface speed	33 m/min
Regulating wheel diameter	New: 355.6mm (14") Worn: 280mm(11")
Regulating wheel width	508 mm (20")
Regulating wheel Bore diameter	203.2mm (8")
No. of regulating wheel speeds	Infinitely variable
Speed range	20 to 300 rpm
A C Induction Motor Power	30kW 1470 RPM
Lower Slide travel, max	175mm
Upper slide travel, Max	115 mm
Maximum swivel to front	2 deg.
Maximum swivel to rear	2 deg.
Pump motor for truing systems	Power: 1.5 kw speed: 1460 rpm
Pump motor for hydro static bearings	Power: 5.5 kw speed: 1460 rpm
Coolant system	Tank capacity: 600 litre Pump Capacity: 200 lpm Pump motor: 0.5kw
Weight of Machine	12000kg

Major Raw materials Utilized:

• Standard materials commonly used such as various categories of steels, rubber, phosphor bronze, Ferrous & non ferrous etc.

• Standard components includes Motor, Electrical control elements, Bearings,O-Rings, Circlips, Slideway liner material, Hydromotor, Safety coupling, Disc brake, Grinding & regulating wheel, Lubrication unit, etc.

Major Plant Equipment and Machines required:

• Fabrication facility, Work handling facilities & Assembly tooling’s.

• General purpose manufacturing workshop equipments like, Turning, Drilling, Boring, Milling, Grinding Machine, Standard pipe bending machine and other.