Patent ID: 7568969
Filing Date: 2009-08-04
Classification: B23Q,B24B,Y10T

Abstract:
1. A locking mechanism of a linear motor travel slider, wherein the travel slider is reciprocably supported on an upper surface of a bed by a linear motor, and movement of the travel slider is stopped at the time of a power failure, the locking mechanism comprising: a serration member laid on one of the bed and the travel slider in a direction that the travel slider travels, the serration member having a teeth portion; a bracket supported by the other of the bed and the travel slider; an actuator supported by the other of the bed and the travel slider through the bracket; a locking member having a teeth portion engageable with the teeth portion of the serration member, the locking member supported with respect to the actuator; and a controller that actuates the actuator so as to retain the lock member in an unlocked position when the linear motor is energized, and that stops an actuation of the actuator when the linear motor is in a stop state due to a power failure; wherein the locking member includes an urging member for making the locking member engage with the serration member while the actuation of the actuator is in a stop state; wherein a workpiece support mechanism for supporting a workpiece is mounted in a state opposed to the travel slider; and wherein a processing tool for processing the workpiece is mounted on the travel slider.