Threading control method and apparatus therefor

Details Threading control method and apparatus therefor Threading control method and apparatus therefor

2006-10-17

2006-10-17

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

Reexamination Certificate

active

07123984

ABSTRACT:
A threading control method and apparatus therefor is provided, in which, when carrying out thread-cut machining operations several times at one position, synchronized with main-spindle rotation and controlling movement of a threading spindle, deviations in thread grooves are prevented without correcting programmed commands, machining accuracy is improved, and tool life extended.When a main-spindle single-rotation reference signal and a main-spindle position counter are input to the numerical control apparatus, the present main-spindle position is computed by a main-spindle position computing means103, the difference between the main-spindle single-rotation reference signal and control cycles is obtained, as a correction amount108, from the computed main-spindle position, by a main-spindle position-correcting means104and a correction is done. A threading-spindle interpolation starting detection means105monitors whether the main-spindle single-rotation reference signal and the control cycles are synchronous, and when synchronous, interpolation for the threading spindle is started by interpolation means106for each spindle.

REFERENCES:
patent: 4053819 (1977-10-01), Matsumoto
patent: 4079235 (1978-03-01), Froyd et al.
patent: 4318646 (1982-03-01), Watanabe
patent: 4386407 (1983-05-01), Hungerford
patent: 4514814 (1985-04-01), Evans
patent: 4620347 (1986-11-01), Stark et al.
patent: 4789943 (1988-12-01), Yamanaka et al.
patent: 4813821 (1989-03-01), Hirota
patent: 4879660 (1989-11-01), Asakura et al.
patent: 5404308 (1995-04-01), Kajiyama
patent: 5517097 (1996-05-01), Hayashida
patent: 5538369 (1996-07-01), Okuda
patent: 5832590 (1998-11-01), Wuerthner
patent: 59187422 (1984-10-01), None
patent: 62094222 (1987-04-01), None
patent: 05046236 (1993-02-01), None

Affiliated with

Also associated with

Rating

Threading control method and apparatus therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Threading control method and apparatus therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Threading control method and apparatus therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3710520