Robot system

Patent metadata

Field	Value
Publication number	US-2018333854-A1
Application number	US-201815893680-A
Country	US
Kind code	A1
Filing date	Feb 11, 2018
Priority date	May 16, 2017
Publication date	Nov 22, 2018
Grant date	—

Abstract

Provided is a highly safe robot system. A robot system includes: an arm operation control unit that controls operations of an arm; and a storage unit that records hazardous part information related to at least any one of a grip unit of the arm and a work target gripped with the grip unit, and the arm operation control unit causes the arm to operate such that the hazardous direction of the hazardous part is different from a moving direction of the grip unit on the basis of the hazardous part information.

First claim

What is claimed is:

1 . A robot system comprising:
an arm operation control unit that controls operations of an arm; and a storage unit that records hazardous part information related to a position of a hazardous part and a hazardous direction of at least any one of a grip unit of the arm and a work target gripped with the grip unit, wherein the arm operation control unit causes the arm to operate in a manner of the hazardous direction of the hazardous part is different from a moving direction of the grip unit on the basis of the hazardous part information.

2 . The robot system according to claim 1 , further comprising:
an information input unit that receives the hazardous part information.

3 . The robot system according to claim 1 , wherein the arm operation control unit switches the hazardous direction of the hazardous part under a state in which the grip unit is gripping the work target and a state in which the grip unit is not gripping the work target.

4 . The robot system according to claim 1 , wherein the arm operation control unit switches the hazardous direction of the hazardous part in accordance with a type of the work target that the grip unit is gripping.

5 . The robot system according to claim 1 ,
wherein an operation direction leading unit is provided at a predetermined location of the arm, and the arm operation control unit causes the arm to operate in a manner of the operation direction leading unit leads and the grip unit follows the operation direction leading unit in the moving direction of the grip unit.

6 . The robot system according to claim 1 , further comprising:
a position detection unit that detects a position of an operator near the robot system, wherein the arm operation control unit stops operations of the arm or causes the arm to operate at a low speed when the position of the operator detected by the position detection unit is within a moving direction region set in accordance with the moving direction of the grip unit.

7 . The robot system according to claim 6 , wherein after the operations of the arm are stopped or the arm is caused to operate at the low speed, the arm operation control unit restarts the operations of the arm or causes the arm to operate at an ordinary speed when the position detection unit does not detect the operator in the moving direction region.

8 . The robot system according to claim 2 , wherein the arm operation control unit switches the hazardous direction of the hazardous part in accordance with a type of the work target that the grip unit is gripping.

9 . The robot system according to claim 3 , wherein the arm operation control unit switches the hazardous direction of the hazardous part in accordance with a type of the work target that the grip unit is gripping.

10 . The robot system according to claim 2 ,
wherein an operation direction leading unit is provided at a predetermined location of the arm, and the arm operation control unit causes the arm to operate in a manner of the operation direction leading unit leads and the grip unit follows the operation direction leading unit in the moving direction of the grip unit.

11 . The robot system according to claim 3 ,
wherein an operation direction leading unit is provided at a predetermined location of the arm, and the arm operation control unit causes the arm to operate in a manner of the operation direction leading unit leads and the grip unit follows the operation direction leading unit in the moving direction of the grip unit.

12 . The robot system according to claim 4 ,
wherein an operation direction leading unit is provided at a predetermined location of the arm, and the arm operation control unit causes the arm to operate in a manner of the operation direction leading unit leads and the grip unit follows the operation direction leading unit in the moving direction of the grip unit.

13 . The robot system according to claim 2 , further comprising:
a position detection unit that detects a position of an operator near the robot system, wherein the arm operation control unit stops operations of the arm or causes the arm to operate at a low speed when the position of the operator detected by the position detection unit is within a moving direction region set in accordance with the moving direction of the grip unit.

14 . The robot system according to claim 3 , further comprising:
a position detection unit that detects a position of an operator near the robot system, wherein the arm operation control unit stops operations of the arm or causes the arm to operate at a low speed when the position of the operator detected by the position detection unit is within a moving direction region set in accordance with the moving direction of the grip unit.

15 . The robot system according to claim 4 , further comprising:
a position detection unit that detects a position of an operator near the robot system, wherein the arm operation control unit stops operations of the arm or causes the arm to operate at a low speed when the position of the operator detected by the position detection unit is within a moving direction region set in accordance with the moving direction of the grip unit.

16 . The robot system according to claim 5 , further comprising:
a position detection unit that detects a position of an operator near the robot system, wherein the arm operation control unit stops operations of the arm or causes the arm to operate at a low speed when the position of the operator detected by the position detection unit is within a moving direction region set in accordance with the moving direction of the grip unit.

Assignees

• Omron Tateisi Electronics Co

Inventors

• Higuchi Toshiyuki
• Tani Yoshiharu
• Osako Kazunori
• Hashimoto Minoru
• Kamisono Daichi
• Fujita Masaki

Classifications

• Y10S901/47

  Optical · CPC title

• B25J9/1697

  Vision controlled systems · CPC title

• B25J9/1694

  characterised by use of sensors other than normal servo-feedback from position, speed or acceleration sensors, perception control, multi-sensor controlled systems, sensor fusion · CPC title

• Y10S901/09

  Closed loop, sensor feedback controls arm movement · CPC title

• B25J9/1666 Primary

  Avoiding collision or forbidden zones · CPC title