Acceleration/deceleration control apparatus

Details Acceleration/deceleration control apparatus Acceleration/deceleration control apparatus

1989-01-06

1991-02-19

MacDonald, Allen R.

Boots, shoes, and leggings

318561, G05B 1300

Patent

active

049949780

ABSTRACT:
An acceleration/deceleration control apparatus according to the present invention is utilized in a numerical contorl unit in which a machine tool is provided with a machining program from a command tape (3) and the machining program is decoded to simultaneously control movement along a plurality of axes. In order to eliminate machining trajactory sag which occurs at the breaks between program blocks, the actual velocity of a controlled object during deceleration is compared with the commanded velocity in the next command data block by a comparator circuit (7). Until the actual velocity is less than the command velocity, a pulse distribution circuit (6) is stopped so as not to perform pulse distribution based on the next command data block. This improves the accuracy of position control by servomotors (1), (2) the acceleration/deceleration of which is controlled by interpolation data.

REFERENCES:
patent: 4250438 (1981-02-01), Onoda
patent: 4328450 (1982-05-01), Gabor
patent: 4328452 (1982-05-01), Ragen et al.
patent: 4404505 (1983-09-01), Swanson et al.
patent: 4486693 (1984-12-01), Hamati et al.
patent: 4554497 (1985-11-01), Nozawa et al.
patent: 4815007 (1989-03-01), Sakai et al.

Affiliated with

Also associated with

Rating

Acceleration/deceleration control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1149362