IP Library › Granted Patent US 11,613,012
Granted Patent B2
US 11,613,012 · App. 16/936,877 · Granted Mar 28, 2023

Robot controller

Inventor: Takashi Satou (Yamanashi, JP)
Assignee: FANUC CORPORATION
B25J9/1633G01L3/00G01L5/0076
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Quick Facts
Patent No.
US 11,613,012
App. No.
16/936,877
Granted
Mar 28, 2023
Kind
B2
Abstract

A robot controller that moves a first workpiece mounted on a robot with respect to a second workpiece, the robot having a sensor for detecting one of magnitude of force acting on the first workpiece and magnitude of torque acting on the robot, the robot controller including a calculation unit configured to calculate a force between the first workpiece and the second workpiece and a moment on the first workpiece, based on the magnitude of the force or the torque, a controller carrying out force control so that the calculated force and the moment correspond to a predetermined force and moment, and a display displaying at least one of a velocity of the first workpiece and an angular velocity, the velocity and the angular velocity occurring as a result of control by the controller, the velocity and the angular velocity being overlapped on an image of the robot.

Claims (19)

1. A robot controller that causes a first workpiece mounted on a distal end of a robot to relatively move with respect to a second workpiece, the robot having a sensor for detecting one of magnitude of force acting on the first workpiece and magnitude of torque acting on the robot, wherein the robot controller is configured to calculate a force acting on a contact point between the first workpiece and the second workpiece and a moment acting on the first workpiece, based on one of the magnitude of the force and the magnitude of the torque detected by the sensor;

wherein the robot controller comprises:

a controller configured to carry out force control so that the calculated force and the moment correspond to a predetermined force and a predetermined moment; and

a display configured to display at least one of a velocity of the first workpiece and an angular velocity around a reference point set for the first workpiece, the velocity and the angular velocity occurring as a result of control by the controller, the one of the velocity and the angular velocity being overlapped on an image of the robot.

2. The robot controller according to claim 1 , wherein

the display displays a direction of one of the velocity and the angular velocity by an arrow.

3. The robot controller according to claim 2 , wherein

the display displays a magnitude of one of the velocity and the angular velocity by a length of the arrow.

4. The robot controller according to claim 2 , wherein

the display displays a magnitude of one of the velocity and the angular velocity by a thickness of the arrow.

5. The robot controller according to claim 2 , wherein

the display displays a magnitude of one of the velocity and the angular velocity by a color of the arrow.

6. The robot controller according to claim 1 , wherein

the display displays the reference point overlapped on the image.

7. The robot controller according to claim 1 , further comprising:

a storage configured to store a geometric parameter of the robot, wherein

the robot controller is configured to calculate the force and the moment using the geometric parameter stored in the storage and a state variable of the robot.

8. The robot controller according to claim 1 , wherein the robot controller is configured to calculate the force acting on the contact point between the first workpiece and a chamfered portion of the second workpiece.

9. The robot controller according to claim 1 , wherein the reference point is set on the first workpiece.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 23, 2020
From: SATOU, TAKASHI
To: FANUC CORPORATION
Reel/Frame 053297/0059 →
Priority Claims (1)
JP JP2019-152670 · Aug 23, 2019 · national
Continuity (1)
Related Publication 20210053218A1 · Feb 25, 2021
Cited By (1)
US 12,576,522