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Tool setting method of mechanical arm feeding type laser etching system

A laser etching, robotic arm technology, used in laser welding equipment, image data processing, complex mathematical operations, etc.

Active Publication Date: 2020-09-01
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 of mechanical arm feeding type laser etching system
  • Tool setting method of mechanical arm feeding type laser etching system
  • Tool setting method of mechanical arm feeding type 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 discloses a tool setting method of a mechanical arm feeding type laser etching system, belongs to the field of non-traditional machining, and relates to a tool setting method of a mechanical arm feeding type laser etching system based on a machine vision technology. The laser etching system is optimized and improved; a vision sensor and an active projection indication laser are added; and an interactive information obtaining function between heterogeneous space non-cooperative electromechanical equipment in the system is added. The problems of non-front-view perspective distortion and vision sensor imaging distortion introduced by an inclined vision measurement configuration are considered; and an inverse perspective transformation geometric correction and camera distortion compensation technology is adopted to correct image information. The precise alignment between a laser etching focusing plane and a part initial characteristic point to be machined in a working space is realized by combining multi-frame sequence image dynamic transformation and multi-axis driving feeding device space shape and position characteristic information. The method solves the precise positioning tool setting problem in the laser etching machining initial phase, and improves the machining precision of target workpieces and the finished product quality.

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 Applications(China)
IPC IPC(8): B23K26/362B23K26/70G06F17/16G06T5/00G06T7/13G06T7/136G06T7/73G06T7/80
CPCB23K26/362B23K26/702G06T7/80G06T7/73G06T7/13G06T7/136G06F17/16G06T5/80
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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