Target position detection apparatus for robot
First Claim
1. A target position detection apparatus for a robot, comprising:
- a robot including an arm configured to be freely moved in at least two directions of X and Y axes, the arm having a wrist axis provided at a distal end of the arm and configured to be freely moved in a horizontal direction, and the wrist axis being provided with an end effector; and
a control unit adapted for driving a memory to store a teaching point therein and controlling an operation of the robot such that the end effector will be moved toward the teaching point stored in the memory,wherein the control unit is further adapted for changing a pressing force of the end effector against a target by changing a control loop gain, and bringing the end effector into contact with the target, while setting the control loop gain of the wrist axis lower than a predetermined value at least from a position adjacent to the teaching point at which the target is located, so as to capture a position in a state in which the end effector is in contact with the target, thereby detecting the position of the target.
1 Assignment
0 Petitions
Accused Products
Abstract
A target position detection apparatus for a robot includes: a robot including an arm configured to be freely moved in at least two directions of X and Y axes, the arm having a wrist axis provided at a distal end of the arm and configured to be freely moved in a horizontal direction, and the wrist axis being provided with an end effector; and a control unit adapted for driving a memory to store a teaching point therein and controlling an operation of the robot such that the end effector will be moved toward the teaching point stored in the memory. The control unit is further adapted for changing a pressing force of the end effector against a target by changing a control loop gain, and bringing the end effector into contact with the target, while setting the control loop gain of the wrist axis lower than a predetermined value at least from a position adjacent to the teaching point at which the target is located, so as to capture a position in a state in which the end effector is in contact with the target, thereby detecting the position of the target.
40 Citations
12 Claims
-
1. A target position detection apparatus for a robot, comprising:
-
a robot including an arm configured to be freely moved in at least two directions of X and Y axes, the arm having a wrist axis provided at a distal end of the arm and configured to be freely moved in a horizontal direction, and the wrist axis being provided with an end effector; and a control unit adapted for driving a memory to store a teaching point therein and controlling an operation of the robot such that the end effector will be moved toward the teaching point stored in the memory, wherein the control unit is further adapted for changing a pressing force of the end effector against a target by changing a control loop gain, and bringing the end effector into contact with the target, while setting the control loop gain of the wrist axis lower than a predetermined value at least from a position adjacent to the teaching point at which the target is located, so as to capture a position in a state in which the end effector is in contact with the target, thereby detecting the position of the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A self-diagnosis apparatus for a robot, comprising:
-
a robot including an arm configured to be freely moved in at least two directions of X and Y axes, the arm having a wrist axis provided at a distal end of the arm and configured to be freely moved in a horizontal direction, and the wrist axis being provided with an end effector; and a control unit adapted for driving a memory to store a teaching point therein and controlling an operation of the robot such that the end effector is moved toward the teaching point stored in the memory, wherein the control unit is further adapted for; changing a pressing force of the end effector against a target by changing a control loop gain; setting the control loop gain of the wrist axis lower than a predetermined value in a state in which an angular displacement of the end effector about the wrist axis is prevented by the target, and first changing an instruction value to the wrist axis such that the end effector will be moved in one circumferential direction of the wrist axis, thereby capturing a position after changing the instruction value, and then changing the instruction value to the wrist axis such that the end effector will be moved in an other circumferential direction of the wrist axis, thereby capturing a position after changing the instruction value; and judging a state of the robot based on a difference between the positions captured. - View Dependent Claims (12)
-
Specification