Method and system for accurately moving mechanical arm to designated location by robot

Abstract

The invention provides a method for accurately moving a mechanical arm to a designated location by a robot. The method comprises the following steps that coordinates of a plurality of designated locations of a first designated image and a second designated image on a preset calibration board are obtained when a robot moving the mechanical arm to the preset calibration board; related physical parameters of the center points of the first designated image and the second designated image are calculated; an image from a fixed camera that captures both the first and second designated images is acquired, and data processing is carried out to determine related image parameters of the center points of the first and second designated images; a mapping relation between physical coordinates of the robot moving mechanical arm and coordinates of the camera is established according to the related physical parameters and the related image parameters of the center points of the first designated image and the second designated image; and one of the pixel point coordinates of the image of the fixed camera is assigned and subjected to converting, and the physical coordinates of the robot moving mechanical arm are obtained and the robot moving mechanical arm is driven to reach the physic coordinates. According to the method for accurately moving the mechanical arm to the designated location by therobot, by establishing the connection between the camera coordinates and the physical coordinates, the robot can move the mechanical arm to the designated location accurately.

Description

technical field [0001] The invention relates to the technical field of industrial robots, in particular to a method and system for a robot to accurately move a mechanical arm to a designated position. Background technique [0002] In the continuous development of modern industry, the automation and intelligence of industrial production has become the general trend, and the application fields of robots are becoming wider and wider. A large number of automation equipment and assembly lines have begun to be put into production, gradually replacing the traditional manual production. . Industrial robots use machine vision technology extensively, and it is necessary to calibrate the coordinate system of robots and industrial cameras. Modern flexible manufacturing often requires the relative position of the robot arm and the industrial camera to change frequently, so every change in the relative position requires recalibration. Existing high-precision calibration methods require ...

AI Technical Summary

Problems solved by technology

Existing high-precision calibration methods require professional technicians to implement complex steps, which are inefficient and cannot be completed by ordinary skilled workers

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