Simulation apparatus for working machine

• US 20030090483A1
• Filed: 10/30/2002
• Published: 05/15/2003
• Est. Priority Date: 11/12/2001
• Status: Abandoned Application

• Current Assignee: Fanuc Ltd (Fanuc Corporation)
• Original Assignee: Fanuc Ltd (Fanuc Corporation)
• Inventors: Nagatsuka, Yoshiharu, Watanabe, Atsushi
• Application Number:
  US10/283,228
• Publication Number:
  US 20030090483A1
• Time in Patent Office: Days
• US Class Current: 345/419
• CPC Class Codes: B25J 9/1671 characterised by simulation, either to verify existing program or to create and verify new program, CAD/CAM oriented, graphic oriented programming systems
• CPC Class Codes: G05B 19/4069 Simulating machining process on screen G05B19/4068 takes precedence
• CPC Class Codes: G05B 2219/37205 Compare measured, vision data with computer model, cad data
• CPC Class Codes: G05B 2219/40564 Recognize shape, contour of object, extract position and orientation
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The layout of a three-dimensional model of a peripheral object (such as a table and a workpiece) is provided on a screen of a simulation apparatus, together with a three-dimensional model of a robot or the like. Point arrays, segments and planes or the like of the models are specified to prepare working point arrays for producing an operation program, thereby providing a simulation of the models in accordance with data of the program. A three-dimensional visual sensor is mounted to a robot to detect the layout of the actual robot, thereby correcting a mismatch, if any, between the layout of the models and that of the actual peripheral object.

Claims

1. A simulation apparatus for performing a simulation of an actual system by combining a three-dimensional model of a working machine such as a robot and a machine tool with a three-dimensional model of a peripheral equipment or a workpiece placed on the periphery of said working machine to display the combination of said three-dimensional models in the form of animation on a screen of said simulation apparatus, comprising:

means for disposing said three-dimensional models on said screen;

means for detecting, through a sensor, each of positions of the actual peripheral equipment or workpiece, which correspond to one or more feature portions of any three-dimensional model disposed on said screen;

means for calculating a relative positional relation between said working machine and said peripheral equipment or workpiece on the basis of each of the detected corresponding positions; and

means for correcting the layout of said models on said screen on the basis of the calculated relative positional relation.

3. The simulation apparatus according to claim 1 or 2, wherein said simulation apparatus further comprises means for adjusting working point array information of said working machine on the basis of said calculated relative positional relation to thereby cause the working points of the program for said working machine to correspond to those of the actual peripheral equipment or workpiece.

4. The simulation apparatus according to claim 1 or 2, wherein said simulation apparatus further comprises mean by which a change of operation or addition/change of working points of said working machine on the screen of said simulation apparatus is linked with a change of the operation or addition/change of working points of the actual working machine.

5. The simulation apparatus according to claim 4, wherein said screen of said simulation apparatus displays a drawing for supporting the manipulation of said working machine to support the change of operation or addition/change of working points of said actual working machine.

6. The simulation apparatus according to claim 1 or 2, wherein said sensor is any one of a two-dimensional visual sensor, a three-dimensional visual sensor and a distance sensor.

2. A simulation apparatus for performing a simulation of an actual system by combining a three-dimensional model of a working machine such as a robot and a machine tool with a three-dimensional model of a peripheral equipment or workpiece placed on the periphery of said working machine to display the combination of said three-dimensional models in the form of animation on a screen of said simulation apparatus, comprising:

means for disposing said three-dimensional models on said screen;

a sensor mounted to said working machine;

means for moving said working machine to such a position that each of positions of the actual peripheral equipment or workpiece, which correspond to one or more feature portions of any three-dimensional model disposed on said screen, can be captured by said sensor, thereby detecting each of said corresponding positions by said sensor;

means for calculating a relative positional relation between said working machine and said peripheral equipment or workpiece on the basis of each of the detected corresponding positions; and

means for correcting the layout of said three-dimensional models on said screen on the basis of the calculated relative positional relation.