Numerically controlled machining apparatus

Details Numerically controlled machining apparatus Numerically controlled machining apparatus

2007-11-26

2010-10-05

Barnes-Bullock, Crystal J (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S164000, C700S187000, C451S027000, C451S123000, C451S136000, C451S142000, C451S178000, C409S001000, C409S132000, C409S166000, C409S196000, C409S219000, C408S062000, C408S071000, C082S001110, C082S106000

Reexamination Certificate

active

07809463

ABSTRACT:
A machining apparatus, in which a plurality of user set programs in relation to one axis is written and the amount of the infeed motion of the grinding wheel is increased to restrain the change of the load of the grinding wheel, improves a machining accuracy and achieve a longer life of the grinding wheel.When the grinding wheel30cut arc portions11A,11C, U having its diameter of which is gradually small according to a position apart from the shoulder, the numerical controller40controls a rotation of the workpiece10around said C-axis, a motion of a grinding wheel30relative to the workpiece10along an X-axis and Z-axis to trace an arc profile of the arc portion11A,11C, U of the extending portion, and an infeed motion of the grinding wheel30to the workpiece10along the X-axis to increase gradually an amount of the infeed motion of the grinding wheel30to the workpiece10along the X-axis in order to grind the extending portion to the arc profile and in order to increase gradually a grinding load of the grinding wheel30.

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