To prevent the collision of a grinding wheel and a work on the way of relative movement of both members, in the phase prior to the processing of the work by the grinding wheel.
In a cam grinder to cut a cam (work Wa) in a specific cam form, by moving a rotary grinding wheel 12 by controlling a motor 9 for moving depending on a set control data, while rotating a main shaft 4 installing a cam shaft, a gap with the ground surface is measured by a gap sensor 30, at the position opposing to the work Wa, the outermost diameter of the work Wa is calculated depending on the measuring value, and when the above calculating result exceeds a prescribed value, the grinding wheel board moving speed, of the preset processing conditions, is converted from a high speed feed to a rough grinding feed, and this converting position is corrected.
| JPS58186563 | SIZING POLISHER |
| JP2022071274 | ADJUSTMENT METHOD OF GRINDING DEVICE |
| WO/2003/074228 | ADVANCED CHEMICAL MECHANICAL POLISHING SYSTEM WITH SMART ENDPOINT DETECTION |
OWADA MASARU
NAKAYAMA TATSUOMI
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