Machine tool having workpiece machining dimension and tool lengt

Details Machine tool having workpiece machining dimension and tool lengt Machine tool having workpiece machining dimension and tool lengt

1990-08-06

1992-03-24

Rachuba, M.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116575, 5116587, 511659, 125 1101, B24B 4902

Patent

active

050976320

ABSTRACT:
A numerically controlled machine tool, such as a grinding machine, is capable of machining a workpiece with a precise dimension by measuring a workpiece machining dimension and/or a tool length. According to one aspect of the invention, when the machining operation is provisionally terminated, a machining dimension of the workpiece is measured without dismounting the workpiece from a table. If a machining error is detected, the workpiece is further machined to a target dimension to thus eliminate the machining error. According to another aspect of the invention, the grinding surface of a grinder is subjected to dressing or truing, and the length of the grinder reduced through the dressing or truing is detected to determine the actual length of the grinder. With the known length of the grinder, the feeder amount of the grinder with respect to the workpiece is set for the subsequent machining operation.

REFERENCES:
patent: 3272975 (1966-09-01), Csech
patent: 3663189 (1972-05-01), Koide
patent: 4461125 (1984-07-01), Wuest
patent: 4571891 (1986-02-01), Donner
patent: 4576069 (1986-03-01), Bazuin
patent: 4897964 (1990-02-01), Vetter

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