Product category:
Abrasive machining - manual and CNC machines
News Release from: Industrial Machine Tool Services | Subject: Rochester 850 CNC cylindrical grinder
Edited by the Manufacturingtalk Editorial
Team on 21 June 2001
Rebuilder manufactures new CNC grinders
too
In addition to its machine rebuilding and retrofitting services, IMTS also designs and manufactures a range of new grinding machines including CNC cylindrical grinders.
Established 20 years ago, Industrial Machine Tool Services (IMTS) in Rochester, Kent offers a wide range of specialised grinding services This includes: complete machine rebuilds, partial rebuilds, CNC retrofitting, on-site service (for both manual and CNC grinders) and the supply of spare parts
This article was originally published on Manufacturingtalk on 11 Jun 2001 at 8.00am (UK)
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In addition, however, IMTS also designs and manufactures a range of new grinding machines which include the Rochester series of CNC cylindrical grinders.
One such new model, a Rochester 850 CNC cylindrical grinder, has helped a leading bearing manufacturer to improve productivity on a range of inner bearing rings required in small batches -- generally around 20 off.
Using a magnetic face plate (with varying gripping force), this three axis CNC machine grinds the OD of the bearing rings which are supported by two curved brass shoes.
Both the 500mm diameter grinding wheel and the 250mm diameter bearings run in the same direction (like centreless grinding) so that the parts are forced down into the support shoes as they are ground.
Compared with manual methods, CNC grinding provides more consistent results and has cut cycle times by 60% and set-up times by 70%.
This customised Rochester 850 grinder has a centre height of 150mm, 850mm between centres and an NUM 1040 CNC system with special software (for dovetail wheel dressing, angle approach grinding and gothic arch-type profiles) written by IMTS.
A menu-driven display simplifies on-machine programming routines.
The straight-approach machine has a CNC radial dresser and two diamond dressers mounted on the tailstock and can grind at peripheral wheels speeds of up to 45m/sec.
These bearing rings are finished ground to 1 micron on the profile, 0.4 micron for roundness and with surface finish levels of 0.8 micron Ra\.
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