Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1982-08-11
1985-06-11
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
901 41, 901 47, G01N 2186
Patent
active
045231001
ABSTRACT:
An improvement to computer control robot arm assemblies having a work head on the free end thereof for allowing the work head to be positioned and held within closer tolerance limits to a desired coordinate position. The work head is attached to the robot arm by a vernier control assembly allowing vernier movement in the X, Y, and Z directions. A moveable support member is provided on the robot arm adjacent the work head. A detector is mounted to the work head for sensing a light beam. A collimated light beam is passed through a point associated with the desired coordinate position under computer control. The work head is positioned within first tolerance limits by the robot arm under computer control. The logic of the computer then contacts the work piece with the support member to hold the free end of the robot arm in position. Under closed-loop computer control, the vernier drives are used to position the detector at a point where the work piece is in the desired coordinate position.
REFERENCES:
patent: 3888362 (1975-06-01), Fletcher et al.
patent: 4170891 (1979-10-01), Elsner
patent: 4273482 (1981-06-01), Lloyd et al.
patent: 4286417 (1981-09-01), Shelton
patent: 4407614 (1983-10-01), Muhr et al.
patent: 4453085 (1984-06-01), Pryor
Brophy J. Jon
Nelms David C.
R & D Associates
LandOfFree
Optical vernier positioning for robot arm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical vernier positioning for robot arm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical vernier positioning for robot arm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1184992