A 3D Model Simplification Method Preserving Accuracy

Abstract

An accuracy-retaining 3D model simplifying method of the invention relates to the technical field of numerical control processing. According to the method, first, data of target 3D model information is parsed to get a data type contained in the 3D model information; then, the target 3D model is simplified to get a simplified 3D model; and finally, a worker carries out application work according to the simplified 3D model. The 3D model simplifying method is very simple in operation, and has low requirement on the technique of technical personnel. After the method is implemented, the situation in which a computer may get stuck or crash when a technician opens a complex 3D model is avoided, the storage space of the 3D model in the computer is reduced, and more importantly, the accuracy of the 3D model is retained, the work efficiency of technical personnel is improved, and the huge cost for computer configuration upgrading is reduced for enterprises. The method has a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of numerical control processing, and in particular relates to a three-dimensional model simplification method maintaining accuracy. Background technique [0002] With the development of digital technology, the programming of CNC machining programs has gradually shifted from two-dimensional manual programming to model-based automatic programming. Especially for complex parts, five-axis machining is required. Manual programming cannot complete the programming and must be based on 3D models. For some ultra-large and complex 3D models, higher requirements are placed on the configuration of the computer. The computer with a lower configuration is extremely slow when opening the model, and the model often freezes and freezes during the update or movement process. Crash and other problems, which require the computer to be restarted repeatedly, which greatly affects the work efficiency of technicians; many enterpris...

AI Technical Summary

Problems solved by technology

[0002] With the development of digital technology, the programming of CNC machining programs has gradually shifted from two-dimensional manual programming to model-based automatic programming. Especially for complex parts, five-axis machining is required. Manual programming cannot complete the programming and must be based on 3D models. For some ultra-large and complex 3D models, higher requirements are placed on the configuration of the computer. The computer with a lower configuration is extremely slow when opening the model, and the model often freezes and freezes during the update or movement process. Crash and other problems, which require the computer to be restarted repeatedly, which greatly affects the work efficiency of technicians; many enterprises with better economic strength have no choice but to improve the configuration of the computer to change this situation, and at the same time bring huge losses to the enterprise. Economic pressure; currently there is a technology to reduce the weight of the model. The JT model commonly used in engineering is a lightweight model developed by Siemens. , the model display speed is fast; but this model is only suitable for assembly simulation and model browsing, and cannot be used for NC program compilation. The programming model needs to be able to recognize the characteristics of the model entity, and generate the source file of the tool position trajectory based on the characteristics

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