Method for controlling grinding process
AssigneeSeiko Seiki Kabushiki Kaisha
InventorsSadao Moritomo, Youji Tatsumi, Terumitsu Sugita
Life of this patent
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Abstract
In a grinding machine, either the revolutional speed of the workpiece or of the grinding wheel is controlled and further the infeed speed of the wheel to the workpiece is controlled so that the optimum grinding condition, having a suitable ratio of the workpiece surface speed to the grinding wheel surface speed and a suitable ratio of the infeed speed to the workpiece revolutional speed, is obtained. The former ratio is maintained despite the wheel diameter decrease caused by wheel dressings.
Claims4
A method for controlling the grinding of a rotating workpiece by a grinding machine having a driven work spindle and a grinding wheel which comprises:
- mounting said workpiece on said work spindle and starting the grinding machine,
- effecting a rapid infeed of the grinding wheel to the workpiece,
- rotating the workpiece and the grinding wheel at first preset speeds while infeeding the grinding wheel to the workpiece at a preset rate per workpiece revolution to effect a predetermined rough grinding of the workpiece, and thereafter
- rotating the workpiece and the grinding wheel at second separately preset speeds different from said first present speeds while infeeding the grinding wheel to the workpiece at a preset lower rate per workpiece revolution to effect a predetermined fine grinding of the workpiece.
Dependencies are inferred from the claim text.