Press working simulator

Patent metadata

Field	Value
Publication number	US-11673262-B2
Application number	US-202016877984-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	Jun 25, 2019
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A press working simulator according to an aspect of the present disclosure includes: a robot program storage section that stores a robot program that instructs a robot how to move; a press program storage section that stores a press program that instructs a press machine how to move; a profile data setting section that causes the press program storage section to store a press program according to profile data that records what position a die is in at each time point when the press machine is actually moved; a model placing section that places three-dimensional models of a workpiece, the robot, and the press machine in a virtual space; a press movement processing section that causes the three-dimensional model of the press machine to move according to the press program; and a robot movement processing section that causes the three-dimensional model of the robot to move according to the robot program.

First claim

What is claimed is:

1. A press working simulator that simulates and checks operation of a press working system comprising a robot that transfers a workpiece and a press machine that works the workpiece while holding the workpiece between dies, the press working simulator comprising:
a robot program storage section that stores a robot program that instructs the robot how to move;
a press program storage section that stores a press program that instructs the press machine how to move;
a profile data setting section that causes the press program storage section to store the press program according to profile data that dynamically records what position the dies are in from the press machine at each time point as the press machine is actually moved;
a model placing section that places three-dimensional models of the workpiece, the robot, and the press machine in a virtual space;
a press movement processing section that causes the three-dimensional model of the press machine to move according to the press program; and
a robot movement processing section that causes the three-dimensional model of the robot to move according to the robot program.

2. The press working simulator according to claim 1 , further comprising a press program modification section that modifies the press program according to any difference between press machine movement conditions to be checked and press machine movement conditions under which the profile data is recorded.

3. The press working simulator according to claim 1 , further comprising:
an interference detection section that detects interference between the three-dimensional models of the workpiece, the robot, and the press machine; and
a robot program modification section that modifies the robot program to prevent interference detected by the interference detection section.

4. The press working simulator according to claim 3 , the robot program modification section changing coordinates of a target position Qn+1 of the robot if the interference detection section detects interference during travel of the three-dimensional model of the robot from a target position Qn of the robot to the target position Qn+1.

5. The press working simulator according to claim 4 , the robot program modification section changing the coordinates of the target position Qn+1 by shifting the target position Qn+1 in a direction in which a movable one of the dies moves.

6. The press working simulator according to claim 5 , the robot program modification section changing the coordinates of the target position Qn+1 by shifting the target position Qn+1 in a direction in which the movable one of the dies moves toward another one of the dies.

7. The press working simulator according to claim 5 , the robot program modification section changing the coordinates of the target position Qn+1 by shifting the target position Qn+1 in a direction in which the workpiece is placed onto one of the dies.

8. The press working simulator according to claim 4 , the robot program modification section changing the coordinates of the target position Qn+1 by shifting the target position Qn+1 in a direction toward the target position Qn.

9. The press working simulator according to claim 4 , the robot program modification section changing the coordinates of the target position Qn+1 by shifting the target position Qn+1 in a direction toward a next target position Qn+2 of the robot.

Assignees

• Fanuc Corp

Inventors

• Yoneyama Hiroyuki

Classifications

• G05B2219/40317

  For collision avoidance and detection · CPC title

• G05B2219/32351

  Visual, graphical animation of process · CPC title

• B21D43/05

  specially adapted for multi-stage presses {(B21D43/145 takes precedence)} · CPC title

• B25J9/1671

  characterised by simulation, either to verify existing program or to create and verify new program, CAD/CAM oriented, graphic oriented programming systems · CPC title

• B25J9/161 Primary

  Hardware, e.g. neural networks, fuzzy logic, interfaces, processor · CPC title