Patent
Robot actuator position control method
Jae W. Jeon
- 12 Sep 1994
4
TL;DR: In this paper, a workpiece is picked up by a robot actuator and transferred to an intermediate position relative to an objectpiece, and the robot actuators then transfer the workpiece from the intermediate position to a predetermined location on the objectpiece.
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Abstract: A workpiece is picked up by a robot actuator and transferred to an intermediate position relative to an objectpiece. The robot actuator then transfers the workpiece from the intermediate position to a predetermined location on the objectpiece. The movement of the robot actuator to the intermediate position is made on the basis of coordinate data of the intermediate position stored in a control system which controls the movement of the robot actuator. During transfer of the workpiece from the intermediate position toward the predetermined location, a determination is made as to whether the movement of the workpiece occurs for a predetermined time period. If the determination is negative, then it is concluded that the workpiece has not reached the predetermined location and the operation is shut down. If the determination is positive, then it is concluded that the workpiece has reached the predetermined location, and the coordinates of the workpiece at that predetermined location are used to define the intermediate position for the transfer of the next workpiece. That is done by resetting the coordinates for the intermediate position in the control system in accordance with the coordinates of the workpiece in the predetermined location.
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Citations
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TL;DR: In this paper, the positioning of a robot accessor in an automated data storage library is rezeroed with respect to a home position which potentially avoids moving the accessor to the home position in every rezero operation.
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Masaki Ichiro
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TL;DR: In this article, a vision correction system for workpiece sensing is used to detect the deviation between the taught welding path and the actual welding path of the workpiece. But the vision system is not used to measure the welding seam region.
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Patent
Robot control system
Hajimu Inaba,Shinsuke Sakakibara,Ryo Nihei +2 more
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TL;DR: In this article, a predetermined operation is executed by a robot (10) taught an end position (TCP) of an operation member (13) mounted on its wrist, and an instruction for correcting the rotation of position of a tool coordinate system (Xt-Yt-Zt) is obtained through a simple operation.
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Patent
Robot controlling system
Hayao Suzuki,Yoshiharu Matsuoka +1 more
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TL;DR: In this article, a system that utilizes a robot for a loading operation of articles of works in a machine, a depalletizing operation for taking out the articles or the works one by one which are stacked up in a magazine at an assembly work station and a palletising operation for stacking up the articles/works one-by-one which are machined or assembled is described.
109
Patent
Method and apparatus for compensating for unprogrammed changes in relative position between a machine and workpiece
Richard Edward Hohn
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TL;DR: In this article, a method and apparatus are disclosed for modifying command signals representing predetermined positions of a machine element relative a workpiece as a function of measurable unprogrammed changes in the relative position therebetween.
93
Patent
Rotary video article centering, orienting and transfer device for computerized electronic operating systems
Jerry Kirsch,Kerry F. Kirsch +1 more
- 26 May 1978
TL;DR: In this article, a servo-motor-driven longitudinally-reciprocable X-axis carriage is mounted on a fixed horizontal arm with a rotary actuator and a reciprocating motor respectively rotating and reciprocating a movable horizontal arm.
84