Automatic adjustable power chuck system and method

Details Automatic adjustable power chuck system and method Automatic adjustable power chuck system and method

1999-03-30

2000-06-27

Tsai, Henry W. H.

Turning

Work driver

82167, 82168, 279114, B23B 3112

Patent

active

060793031

ABSTRACT:
A power chuck system is disclosed featuring a motor, a harmonic drive and a chuck. The harmonic drive is arranged with an input member driven by direct connection with the motor rotor, and an output member directly connected to a long stroke jaw actuation device, providing an integral unit which rotates together with the spindle during machining. During jaw adjustment, an electromagnetic brake releasably connects the motor stator with the spindle and chuck body. Gripping force adjustment is achieved by adjusting the motor torque. The inertial forces of the rotating components are overcome by controlling the motor torque and velocity as gripping ensues, and therefore both high and low gripping forces may be accurately achieved with high speed jaw adjustment. Jaw position and workpiece diameter measurement with a feedback capability are made by use of a rotary encoder.

REFERENCES:
patent: 2528442 (1950-10-01), Leifer
patent: 3499657 (1970-03-01), Giraud et al.
patent: 4359676 (1982-11-01), Fujioka
patent: 4386544 (1983-06-01), Fuminire
patent: 5894771 (1999-04-01), Braun et al.

Affiliated with

Also associated with

Rating

Automatic adjustable power chuck system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic adjustable power chuck system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic adjustable power chuck system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1774542