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Peripheral milling surface topography rapid modeling method

A technology of surface processing and modeling methods, applied in simulators, instruments, computer control, etc., can solve problems such as long time and low efficiency of numerical control milling modeling

Active Publication Date: 2018-10-26
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for rapid modeling of surface topography in peripheral milling, which solves the problems of low modeling efficiency and long time in existing CNC milling

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  • Peripheral milling surface topography rapid modeling method

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Embodiment Construction

[0077] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0078] A method for rapid modeling of surface topography in peripheral milling of the present invention, the specific operation steps are as follows:

[0079] Step 1: Establish workpiece coordinate system and tool coordinate system, such as figure 1 shown;

[0080] Step 2: Select the datum plane and datum tooth, and calculate the motion trajectory equation of the datum tooth on the workpiece datum plane for one rotation of the tool datum plane;

[0081] Step 2.1: Select the workpiece coordinate system x i = Surface 0 is the reference plane, choose a tooth to define as the reference tooth, and define the tool in the workpiece coordinate system x i = The cross section on the 0 plane is the tool datum plane, defining the workpiece in the workpiece coordinate system x i =The cross-section on the 0 surface is the reference plane of the workpie...

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Abstract

The invention discloses a peripheral milling surface topography rapid modeling method. The cutting participation part of the butt mill side teeth is discretized into a series of discrete points according to radial position angle average. Each discrete point is corresponding to a cutter discrete surface and a workpiece discrete surface. A simulation method having far less calculation frequency thanthat of the normal method is established by using the characteristic of equal tooth spacing angle of the milling cutter side teeth. The method comprises the steps of cutter reference tooth path equation calculation, reference tooth surface processing topography calculation on the workpiece reference surface after considering adjacent tooth cutting, workpiece reference surface processing topography calculation, workpiece partial surface processing topography calculation and workpiece overall surface processing topography calculation. The speed of the method is far faster than that of other peripheral milling surface topography methods. The rough surface topography corresponding to the cutting parameter can be rapidly determined by using the method in actual use so as to provide reference for actual processing and save a lot of time.

Description

technical field [0001] The invention belongs to the technical field of numerical control milling, and in particular relates to a rapid modeling method for surface topography in peripheral milling. Background technique [0002] With the development of technology, CNC multi-axis milling technology is becoming more and more mature, and various milling surface topography modeling methods are also very mature, but the existing surface topography modeling methods generally take a long time, often several hours Even days. The basic idea of ​​establishing the simulation of milling shape in the existing technology is to solve the trajectory of the blade in space according to the general process of end mill milling, and then judge whether the blade cuts into the workpiece at a selected moment, and if it cuts in, the workpiece needs to be updated The height coordinate of the part to be cut. Finally, the topological connection of the points remaining on the workpiece surface will obta...

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Application Information

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IPC IPC(8): G05B19/408
CPCG05B19/4086G05B2219/35356
Inventor 李淑娟董永亨洪贤涛赵智渊袁启龙李言杨振朝
Owner XIAN UNIV OF TECH