| 摘要 |
PROBLEM TO BE SOLVED: To obtain a device to carry out a three-point supporting clamping of a grinder and the like adequately. SOLUTION: This three-point supporting clamper device is composed of a housing 1 to move forward and rearward opposing to a grinding wheel board H by placing a work W therebetween, by a driving means 2; a first support arm 8 having a supporting piece 9 at the front end, opposing to a grinding wheel shaft at the position in the vertical direction, by placing the rotation axis L of the work at the center, and to allow to move forward and rearward in the longitudinal direction to the work; support arm advance and retreat drivers 11 to 18 to move the first support arm forward and rearward; a second support arm 21 and a third support arm 22 in which the base end sides are installed rotatable respectively around the parallel axial lines by placing an internal vertically in the housing, having the symmetric relation by making the first support arm as the symmetric shaft, and furnished with support pieces opposing each other at the rotating tips; and a support arm switching driver to rotate opposingly the second and the third support arms each other by synchronizing them. Furthermore, a controller C to operate the support arm advance and retreat drivers and support arm switching drivers, relating with the operation of the advance and the retreat of the grinding wheel board H, is also provided.
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