Tool setting method of mechanical arm feeding type laser etching system

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...

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

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