Gas compressor blade robot abrasive belt grinding and polishing machining method

Abstract

The invention discloses a gas compressor blade robot abrasive belt grinding and polishing machining method, which comprises the steps: S100, a robot grinding and polishing system is built, and a robotis calibrated and a motion path is planned; S200, an orthogonal experiment is carried out with the abrasive belt model, the granularity and the radius of a contact wheel of the grinding and polishingmachine as known quantities and the robot feeding speed, the abrasive belt linear speed and the grinding force as grinding and polishing variables, and a grinding and polishing experiment is carriedout on the blade through a robot grinding and polishing system, and a grinding and polishing blade sample is obtained; S300, the grinding depth, the surface roughness and the surface topography characteristics of the grinding and polishing blade sample are measured, and a cut-in, middle and cut-out part material removal rate model considering the cut-in, cut-out over-grinding or under-grinding phenomenon is established; and S400, main influence factors of the material removal rate model according to the material removal rate model is analyzed, the main influence factors during cut-in and cut-out are optimized and adjusted, and multiple groups of optimization parameters are estimated. According to the method, the phenomena of over-grinding and under-grinding are reduced to the maximum extent, and the surface quality and flatness of the workpiece are improved.

Description

technical field [0001] The invention belongs to the technical field of robot grinding and polishing technology, and more specifically relates to a method for grinding and polishing of a compressor blade by a robot abrasive belt. Background technique [0002] With the development of science and technology, aerospace and energy have more and more urgent demands for blades with complex curved surfaces. However, at present, the grinding and polishing of blades with complex curved surfaces mainly relies on manual labor, which has low processing efficiency, low precision, and high labor intensity for operators. In recent years, the robot industry has developed rapidly. Compared with multi-axis CNC machine tools, industrial robots have the advantages of low cost, good flexibility, intelligence, high efficiency, and large operating space. They are widely used in blade grinding and processing, which can not only improve blade grinding and polishing. Processing quality, and can greatl...

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a method for grinding and polishing of a compressor blade by a robotic abrasive belt, which reduces and increases the grinding depth on the cut-in and cut-out parts by optimizing the feed speed of the robot, Try to ensure that the value of the slope of the removal rate model is zero. In the cutting and milling process, the cutting depth can be kept constant by using the variable feed processing theory, which can improve the surface quality and flatness of the workpiece, and solve the grinding and polishing parameters in the grinding and polishing process. The problem of over-grinding and under-grinding of cut-in and out-cut caused by unreasonable

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