Title:
TOOL EDGE POSITION MEASURING DEVICE FOR BORING MACHINE
Document Type and Number:
Japanese Patent JP3305387
Kind Code:
B
Abstract:
PURPOSE: To measure the amount of projection of an edge highly accurately by moving a measurement device in the separating direction relative to a chip holder by an arm supported pivotally on a housing and measuring a moving force of a movable contactor touched on the edge of a chip to a measurement head.
CONSTITUTION: When the amount of projection of a chip edge is adjusted after a chip 21 has been replaced first a machining diameter compensation motor is driven to return an eccentric compensation shaft 15 back to an eccentric original position, and then a spindle motor 13 is driven to face a measurement reference surface 22 of a chip holder 20 toward the left. Next an arm 27 is swung downward by the operation of a cylinder 30 to make a fixed contactor 39 of a measurement device 35 in contact with the measurement reference surface 22 and also a movable contactor 40 in contact with a chip edge 21a at the bottom end of the chip holder 20. In this case, a signal from an electric measurement section 42 is input into a chip measurement section, the amount of projection of the edge is measured comparatively with a zero-set master, and the measured value is compared with the set value for calculation of a compensation value. Then a machining diameter compensation motor is driven controllably to compensate the amount of projection of the edge 21a.
Inventors:
Tsuji, Kazuaki
Takabayashi, Satoru
Ito, Takeshi
Takabayashi, Satoru
Ito, Takeshi
Application Number:
JP1992000349733
Publication Date:
May 10, 2002
Filing Date:
December 01, 1992
Export Citation:
Assignee:
ENSHU LTD
NISSAN MOTOR CO LTD
NISSAN MOTOR CO LTD
International Classes:
B23B49/00; B23Q17/22; B23B49/00; B23Q17/22; (IPC1-7): B23B49/00; B23Q17/22