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Tool setting method for a mechanical arm feeding laser etching system

A laser etching and robotic arm technology, applied in laser welding equipment, image enhancement, instruments, etc., to achieve the effect of small alignment error, simple structure, and improved yield

Active Publication Date: 2021-04-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applying it to the laser etching process solves the problem of accurate alignment between the laser etching focal plane in space and the initial feature points of the part to be processed, and improves the processing accuracy of the target workpiece and the quality of the finished product

Method used

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  • Tool setting method for a mechanical arm feeding laser etching system
  • Tool setting method for a mechanical arm feeding laser etching system
  • Tool setting method for a mechanical arm feeding laser etching system

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Embodiment Construction

[0111] In order to make the present invention convenient for engineering application, the system configuration and usage method involved in the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings provided by the present invention:

[0112] attached figure 1 and attached figure 2 Shown is the general structure diagram of the robotic arm feeding laser etching system and the close-up view of the hand range of the industrial robotic arm, in which the monocular industrial camera 1, the red indicator laser 2, the beam combiner 3, and the ArUco square reference code 4 , The checkerboard calibration plate 5 constitutes a positioning tool setting device.

[0113] In the embodiment of the invention: the industrial mechanical arm 6 is a medium and light-load six-axis series industrial mechanical arm with a load capacity of 20kg; the red indicator laser 2 is a semiconductor continuous laser driven by electric exc...

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Abstract

The invention relates to a tool setting method for a mechanical arm feeding laser etching system, which belongs to the field of special processing, and relates to a tool setting method for a mechanical arm feeding laser etching system based on machine vision technology. The invention optimizes and improves the laser etching system, adds a visual sensor and an active projection indicating laser, and adds the function of acquiring interactive information between non-cooperative electromechanical devices in different spaces in the system. Considering the non-orthoscopic perspective distortion introduced by the oblique vision measurement configuration and the imaging distortion of the visual sensor, the inverse perspective transformation geometric correction and camera distortion compensation technology are used to correct the image information. Combined with the dynamic transformation of multi-frame sequence images and the spatial shape and position feature information of the multi-axis drive feed device, the precise alignment between the laser etching focal plane in the working space and the feature points to be processed at the beginning of the part is realized. The method solves the problem of precise positioning and tool setting in the initial stage of laser etching processing, and improves the processing accuracy of the target workpiece and the quality of the finished product.

Description

technical field [0001] The invention belongs to the field of special processing, and relates to a tool setting method of a mechanical arm feeding laser etching system based on machine vision technology. Background technique [0002] Typical laser etching is an advanced technology that utilizes high-energy-density focused light energy and relies on photothermal effects to achieve melting and removal of target materials. It belongs to non-contact special processing with high parameter controllability and strong material adaptability. Further, laser The industrial robot arm with etching combined with intelligent multi-axis drive can realize high-precision and high-efficiency material reduction processing in complex processing environments and special curved surface parts. In the existing self-built robotic arm feeding laser etching system, the laser generating equipment and the industrial robotic arm belong to different independent control systems, which are non-cooperative ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/16B23K26/362B23K26/70G06T5/00G06T7/13G06T7/136G06T7/73G06T7/80
CPCB23K26/362B23K26/702G06F17/16G06T5/006G06T7/13G06T7/136G06T7/73G06T7/80
Inventor 刘巍王嘉丞马建伟吕琦闫惠腾刘冬王福吉
Owner DALIAN UNIV OF TECH
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