Moving type tail stock
AssigneeMatsuura Machinery Corporation
InventorsKoichi Amaya, Kiyotaka Iwai, Syuji Iizuka
Life of this patent
Estimating the term…
Abstract
A tail stock moving mechanism, in which a tail stock that holds a work with a predetermined pressure force is moved by a ball screw and in which control required for holding the work with the predetermined pressure force is implemented, is accomplished in a predetermined order wherein, the tall stock 1 holds a position of the work 5 and is supported by a ball screw 2, torque generated by a drive motor 3 that drives the ball screw 2 is detected, and when the torque reaches a predetermined reference value, then operation of a brake 4 to limit rotation of the ball screw 2 and cutting off of an input from a power supply to the drive motor 3 are performed.
Claims15
A tail stock moving method for controlling a tail stock that holds a work and is supported by a ball screw, the method comprising the steps of:
- a. detecting movement of the tail stock caused by the ball screw, and torque generated by a drive motor that drives the ball screw;
- b. operating a brake to limit rotation of the ball screw, when the torque in the step a reaches a predetermined reference value;
- and
- c. cutting off an input from a power supply to the drive motor after the brake is operated in the step b.
A tail stock moving method for controlling a tail stock that holds a work and is supported by a ball screw, the method comprising the steps of:
- a. detecting movement of the tail stock caused by the ball screw, and torque generated by a drive motor that drives the ball screw;
- b. cutting off an input from a power supply to the drive motor, when the torque in the step a reaches a predetermined reference value;
- and
- c. operating a brake to limit rotation of the ball screw, after the cutting off in the step b.
A tail stock moving method for controlling a tail stock that holds a work and is supported by a ball screw, the method comprising the steps of:
- a. detecting movement of the tail stock caused by the ball screw, and torque generated by a drive motor that drives the ball screw;
- and
- b. operating a brake to limit rotation of the ball screw, and cutting off an input from a power supply to the drive motor at the same time, when the torque in the step a reaches a predetermined reference value.
Dependencies are inferred from the claim text.