Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1990-10-31
1992-04-14
Ip, Paul
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
3185681, 31856818, 318567, 318434, G05B 19407
Patent
active
051051354
ABSTRACT:
In a feedback controller for NC controlled machine tools, the position and the velocity of a work is detected and compared with the desired position. By this comparison, the work velocity is calculated and compared with the current velocity, which determines torque of a driving motor. A torque compensation signal generator, receiving the current velocity, generates a compensation signal according to a predetermined velocity/torque function. The signal is composed with a torque signal passed to a driving motor, and torque compensation is performed. A periodic reaction detector detects periodic fluctuation of the work caused by periodic load fluctuation, and a torque compensation direction causes a signal generator to suppress the fluctuation at desired occasions.
REFERENCES:
patent: 4353020 (1982-10-01), Veale
patent: 4556830 (1985-12-01), Schwalm et al.
patent: 4774445 (1988-09-01), Penkar
patent: 4807153 (1989-02-01), Onaga et al.
patent: 4864206 (1989-09-01), Onaga et al.
patent: 4864209 (1989-09-01), Seki et al.
patent: 4876494 (1989-10-01), Daggett et al.
patent: 4882528 (1989-11-01), Sogabe et al.
patent: 4894598 (1990-01-01), Daggett
patent: 4925312 (1990-05-01), Onaga et al.
patent: 4980623 (1990-12-01), Anton
patent: 4988935 (1991-01-01), York
Kitaori Shigeya
Nashiki Masayuki
Ip Paul
Okuma Machinery Works Ltd.
LandOfFree
Feedback controller for NC controlled machine tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Feedback controller for NC controlled machine tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedback controller for NC controlled machine tools will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2352087