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US 7,269,472 B2Granted
Many-headed grinding machine and grinding method using many-headed grinding machine
AssigneeNippei Toyama Corporation
InventorSadatsune Ammi
Life of this patent
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AssigneeNippei Toyama Corporation
InventorSadatsune Ammi
Estimating the term…
A control device 40 controls the grinding processing at a processing portion of a work W so as to shift to the last precision grinding step from a rough grinding step through a middle grinding step and a finishing grinding step. When the grinding in each step is carried out, two processing portions are measured, and then, it is determined whether or not one or both measurement values attain to a predetermined value that has been determined in advance when each step is finished. When a processing time difference t is generated between the processing portions, by increasing or decreasing the feeding amount per unit time in a next step, the processing time difference is eliminated. Thereby, the finishing grinding step just before the last steps of the both processing portions are simultaneously finished.
An apparatus having a plurality of heads for simultaneously grinding processing a plurality of places of a workpiece supported by a work supporting section, wherein each head has a grinding wheel and is independently controlled, the apparatus comprising:
A grinding method using a grinding machine having a plurality of heads for simultaneously grinding processing a plurality of places of a workpiece wherein each head has a grinding wheel and is independently controlled, the method comprising:
Dependencies are inferred from the claim text.