Boots – shoes – and leggings
Patent
1991-11-26
1994-04-19
Smith, Jerry
Boots, shoes, and leggings
36447431, 36447418, G06F 1130
Patent
active
053052277
ABSTRACT:
A gear pitch error correcting system for a numerical control apparatus used for a machine tool including at least one pair of gears provided in a transmission line through which the rotating force of a servomotor is transmitted to a driven member. Gear pitch error correction values for the respective gears, which each correspond to a predetermined gear angle and collectively cover one gear rotation, are stored in a nonvolatile memory. A pitch error computing means (E) refers to a current position register (D), reads out pitch error correction data (14b) corresponding to the current position from the nonvolatile memory, and adds up the data to obtain a superimposed pitch error correction value. The superimposed pitch error correction value and an interpolation pulse from an interpolating means (B) are added together by an adder (C), to obtain a pitch error-corrected output pulse, which is then supplied to an axis control circuit (18). Accordingly, even with a relatively small number of gear pitch error correction values for the individual gears, a gear pitch error correction can be precisely executed in proportion to the superimposing of the gear pitch error correction values.
REFERENCES:
patent: 3461456 (1969-08-01), Hofler
patent: 4502108 (1985-02-01), Nozawa et al.
patent: 4893971 (1990-01-01), Watanabe et al.
patent: 4942611 (1990-07-01), Kunugi et al.
patent: 4945501 (1990-07-01), Bell et al.
patent: 4974165 (1990-11-01), Locke et al.
Eguchi Ryouji
Fujibayashi Kentaro
Otsuki Toshiaki
Sasaki Takao
Fanuc Limited
Oakes Brian C.
Smith Jerry
LandOfFree
Gear pitch error correcting system for numerical control apparat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gear pitch error correcting system for numerical control apparat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gear pitch error correcting system for numerical control apparat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-25249