Product category:
Abrasive machining - manual and CNC machines
News Release from: 600 Centre | Subject: Okamoto UPZ 315Li high speed CNC surface grinding
Edited by the Manufacturingtalk Editorial
Team on 07 November 2001
Linear surface grinders up production
eight-fold
Targeted at the carbide industry for grinding components such as punch forms, the latest Okamoto UPZ 315Li high speed CNC surface grinding machines have up to 100m/min feed rate.
Targeted at the carbide industry for grinding components such as punch forms, the latest Okamoto UPZ 315Li high speed CNC surface grinding machines with up to 100m/min feed rate are able to produce punch type components up to eight times faster than traditional optical profile grinding methods Available from 600 Centre in Shepshed, the UPZ uses linear motor drives for the table with linear glass scales to provide precise closed-loop positioning
This article was originally published on Manufacturingtalk on 22 May 2001 at 8.00am (UK)
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With the new 4.2kW drive system, the grinding feed rate is totally programmable up to 100m/min through the Fanuc 18iMB system.
Central to the machine design is the placement of the dual linear drive system which is set on the vertical plane each side of a tennon section that runs the length of the underside of the table.
This configuration overcomes any forces that could be created by the linear drive and thus eliminates any tendency for table lift or pull-down during the grinding process.
This action would not only reduce the maintenance of grinding size and the holding of geometric tolerances, but would also lead to bearing surface wear on the table.
The table design also eliminates effects of thermal growth generated from the high table speed and any heat generated by the high power drive system.
The main wheel head has a 3.7kW AC motor and maximum wheel size of 200mm with a surface speed of 6,000m/min.
The wheelhead assembly is attached to the main bed casting and reaches the floor which improves rigidity.
The wheel to table dimension is 400 mm, longitudinal table travel is 280mm and cross travel is 170mm.
The magnetic chuck size is 175mm by 105mm.
The machine control software is able to accommodate the grinding of a series of 'family' parts of various sizes using a grid reference style tabulation of the magnetic chuck surface in conjunction with program positional and size data.
By using a touch trigger probe, higher levels of datum position for form grinding can be made in order to accommodate high accuracy requirements.
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