End-milling plane forming surface three-dimensional modeling method

Abstract

The invention relates to an end-milling plane forming surface three-dimensional modeling method, and the method employs UG software for simulating a milling movement. The method comprises the steps: building a three-dimensional model of one-cycle movement of a main knife edge and an auxiliary knife edge during the plane milling; enabling the three-dimensional model to move in a feeding direction through commands of transformation and copying; obtaining the three-dimensional model on the whole forming surface, and obtaining a sleeking weld reinforcement region as a three-dimensional model of the forming surface. The method also proposes a method for determining the surface roughness Ra. The method for determining the surface roughness Ra comprises the steps: obtaining the maximum coordinates of the main knife edge or main sleeking knife edge of the sleeking weld reinforcement region through the commands of information and point of UG software, and obtaining the surface roughness Ra (mm). The UG three-dimensional modeling method is used for building the three-dimensional model of the forming surface, and the three-dimensional model visually reflects an end-milling plane forming surface, and obtains the surface roughness Ra value at the same time. The visuality is good, and the efficiency and precision are high.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing software simulation analysis, and in particular relates to a three-dimensional modeling method for a plane forming surface processed by end milling. Background technique [0002] At present, in the research of surface roughness prediction in end milling, the theoretical surface roughness prediction method is established based on cutting theory, and the surface roughness value is calculated from a geometric point of view. There are three main calculation methods: [0003] Two-dimensional drawing method: simulate the movement of the end milling plane on the drawing, and draw the two-dimensional schematic diagram of the triangular cross-section of the main cutting edge and auxiliary cutting edge in the moving plane of the centerline of the milling cutter, and the main cutting edge in the trimming relief area Two-dimensional schematic diagram of the double triangular section formed by t...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a three-dimensional modeling method for the plane forming surface of end milling, so as to solve the problem that the surface roughness value Ra and the shape of the forming surface cannot be obtained in the surface prediction of the existing end milling process

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