A method for automatic grinding and processing of workpieces based on off-line programming

Abstract

An automated workpiece grinding and machining method employing offline programming comprises the following steps: S1, generating a reference grinding track in offline programming software according to 3D image data of workpieces to be machined; S2, scanning a physical standard workpiece of said workpieces so as to acquire a 3D point cloud model of the physical standard workpiece, and storing the 3D point cloud model as a standard template model; S3, moving the physical standard workpiece according to the reference grinding track so as to correct the reference grinding track by means of acquired track deviation data, such that a standard grinding track is generated in accordance with the physical standard workpiece; and S4, grinding the workpieces one by one according to the standard grinding track. In the method, a workpiece held by a robot is used as a reference, and steps of scanning comparison, track difference compensation, and the like are performed to complete precise surface treatment of each workpiece, thereby effectively ensuring the uniformity and quality of workpiece products, while also reducing the difficulty of designing a program for automated surface treatment.

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

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