Automatic workpiece polishing method based on off-line programming

Abstract

The invention relates to the techncial field of machining and particularly relates to an automatic workpiece polishing method based on off-line programming. The automatic workpiece polishing method comprises the following steps of: (S1) generating a reference polishing track in off-line programming software according to 3D drawing document data of to-be-machined workpieces; (S2) scanning a real standard part of each workpiece so as to extract a 3D point cloud model of the real standard part and store the 3D point cloud model as a standard form model; (S3) moving the real standard part according to the reference polishing track so as to correct the reference polishing track by virtue of the acquired track deviation data, thereby generating a standard polishing track which is in accordancewith the real standard part; and (S4) polishing the to-be-machined workpieces one by one according to the standard polishing track. By adopting a robot for clamping the workpieces, the automatic workpiece polishing method provided by the invention can implement precise surface treatment operation of each workpiece (especially a small-size workpiece) by steps such as scanning comparison and track difference compensation, can effectively guarantee the uniformity and quality of each workpiece product and also reduces the programming difficulty of automatic surface treatment operation.

Description

technical field [0001] The invention relates to the technical field of processing, in particular to an off-line programming-based automatic grinding processing method for workpieces. Background technique [0002] With the rapid development of the manufacturing industry, surface treatment processes such as grinding and polishing have become a key process in the process of workpiece processing, and the effect of surface treatment will directly determine the quality of workpiece products. [0003] Traditional surface treatment processes such as grinding and polishing mainly use three processing methods: manual processing, special machine tools, and robots; among them, the manual processing method has a large workload, high labor intensity, low operating efficiency, and poor uniformity of workpiece processing. Waste products are produced; the versatility of the special machine tool processing method is poor, and it can only be suitable for batch processing of specific workpieces...

AI Technical Summary

Problems solved by technology

Although this solution can grind the curved surface with obstacles, there are actually the following problems: a. In the process of actually grinding the workpiece, it is often necessary to use a variety of grinding tools, because the grinding tools are fixed on the robot. At the end, there will inevitably be a step of replacing the grinding tool. In this way, it is not only necessary to re-position and measure the grinding tool and workpiece, which increases the difficulty of the grinding method, but also cannot guarantee the grinding effect; b. After scanning a workpiece, it is necessary to Only by re-measurement can the physical feature points and their coordinate values ​​in the robot coordinate system be obtained, making it only suitable for grinding large single workpieces

Although this solution uses a robot to install the workpiece to be polished, it can solve the series of problems caused by the replacement of grinding tools to a certain extent, but it also has the following problems: a. Obtaining 3D data of the workpiece to be processed is only used to find the product The defect parts, and the steps to obtain 3D data are more complicated; b. If the defect parts of the product are repeatedly processed and polished, not for the whole workpiece; c. In practical applications, the workpiece is polished with a laser Polishing technology is not mature

Images