Transfer robot system

• US 20060072988A1
• Filed: 07/29/2005
• Published: 04/06/2006
• Est. Priority Date: 07/29/2004
• Status: Abandoned Application

• Current Assignee: Fanuc Ltd (Fanuc Corporation)
• Original Assignee: Fanuc Ltd (Fanuc Corporation)
• Inventors: Oda, Masaru, Hariki, Kazuo
• Application Number:
  US11/192,094
• Publication Number:
  US 20060072988A1
• Time in Patent Office: Days
• US Class Current: 414/282
• CPC Class Codes: B25J 5/02 travelling along a guideway
• CPC Class Codes: B25J 9/0096 co-operating with a working support, e.g. work-table
• CPC Class Codes: B25J 9/1697 Vision controlled systems
• CPC Class Codes: G05B 2219/37555 Camera detects orientation, position workpiece, points of workpiece
• CPC Class Codes: G05B 2219/45063 Pick and place manipulator

Abstract

A transfer robot system with a manipulator. The transfer robot system includes a track extending between a first position at which a container containing a workpiece is placed and a second position to which the workpiece in the container is fed; a manipulator movable along the track and capable of holding the container and the workpiece; a temporary container-depository movable along the track synchronously with the manipulator, the container taken out from the first position by the manipulator being temporarily put thereon; a workpiece detecting section for detecting the position and the orientation of the workpiece, contained in the container put on the temporary container-depository, during a period when the manipulator and the temporary container-depository move along the track synchronously with each other; and a transfer control section for controlling the manipulator, based on a detection result in the workpiece detecting section, to make the manipulator pick out the workpiece from the container put on the temporary container-depository and feed the workpiece picked from the container to the second position.

Claims

1. A transfer robot system comprising:

a track extending between a first position at which a container containing a workpiece is placed and a second position to which the workpiece in the container is fed;

a manipulator movable along said track, said manipulator capable of holding said container and said workpiece;

a temporary container-depository movable along said track synchronously with said manipulator, said container taken out from said first position by said manipulator being temporarily put on said temporary container-depository;

a workpiece detecting section for detecting position and orientation of said workpiece, contained in said container put on said temporary container-depository, during a period when said manipulator and said temporary container-depository move along said track synchronously with each other; and

a transfer control section for controlling said manipulator, based on a detection result in said workpiece detecting section, to make said manipulator pick out said workpiece from said container put on said temporary container-depository and feed said workpiece picked from said container to said second position.

2. A transfer robot system as set forth in claim 1, wherein said transfer control section controls said manipulator, based on the detection result in said workpiece detecting section, to make said manipulator pick out said workpiece from said container put on said temporary container-depository, during the period when said manipulator and said temporary container-depository move along said track synchronously with each other.

3. A transfer robot system as set forth in claim 1, wherein said workpiece detecting section distinguishes and selects a designated workpiece, from among several types of workpieces contained in said container put on said temporary container-depository, and detects position and orientation of said designated workpiece in said container, during the period when said manipulator and said temporary container-depository move along said track synchronously with each other;

and wherein said transfer control section controls said manipulator, based on the detection result in said workpiece detecting section, to make said manipulator pick out said designated workpiece from said container.

4. A transfer robot system as set forth in claim 1, further comprising a moving platform movable along said track, said manipulator being mounted on said moving platform and said temporary container-depository including a support mounted on said moving platform;

wherein said transfer control section further controls a motion of said moving platform along said track.

5. A transfer robot system as set forth in claim 1, wherein a container station is provided at said first position for collecting and storing a plurality of containers;

and wherein said transfer control section controls said manipulator to make said manipulator select a designated container from among said plurality of containers and take out said designated container from said container station.

6. A transfer robot system as set forth in claim 1, wherein said workpiece detecting section comprises a two-dimensional or a three-dimensional visual sensor.