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A Simulation Method for Surface Topography Modeling and Forming of Side Milling Ruled Surface

A technology of ruled surface and surface topography, applied in the field of precision machining, can solve the problems of low efficiency and low simulation accuracy, and achieve the effects of improving simulation accuracy, improving simulation efficiency and saving simulation time.

Active Publication Date: 2021-04-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of low efficiency and low simulation accuracy of the above-mentioned existing surface topography modeling and simulation methods for ruled surfaces, and to provide a side milling ruled surface with simple steps and accurate simulation data Surface Topography Modeling and Molding Simulation Method

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  • A Simulation Method for Surface Topography Modeling and Forming of Side Milling Ruled Surface
  • A Simulation Method for Surface Topography Modeling and Forming of Side Milling Ruled Surface
  • A Simulation Method for Surface Topography Modeling and Forming of Side Milling Ruled Surface

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0044] like figure 1 As shown, the surface topography modeling method of a side milling ruled surface provided by the present invention comprises the following steps:

[0045] a. Define the coordinate system;

[0046] In order to describe the pose of the tool relative to the workpiece during the machining process, the following main coordinate systems are defined, including the workpiece coordinate system {W}, the spindle coordinate system {S}, the tool coordinate system, the cutter tooth coordinate system and the auxiliary coordinate system, such as image 3 shown; as Figure 5 As shown, set the coordinate system {1}, coordinate system {2}, and coordinate system {3}.

[0047] b. Carry out tool position trajectory planning on the ruled surface;

[0048] For tool position trajectory planning on ruled surfaces, CAM software (such as UG) can be used...

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Abstract

The invention discloses a simulation method for modeling and shaping the surface topography of a side milling ruled surface. Firstly, aiming at the side milling processing method of a five-axis machine tool, the spindle coordinate system is accurately established by using the tool position file, and the vibration of the tool in actual processing is considered. According to the kinematic description of the cutting edge of the cutting tool, a series of point cloud data of discrete cutting edge points are obtained; then, the grid is divided according to the mathematical equation of the ruled surface and the required simulation area, and the grid nodes of each grid are established. Follow-up containment box; analyze the point cloud data in each containment box, extract the lowest characteristic point that affects the surface topography, and traverse all grid nodes, and finally obtain the three-dimensional surface topography of the ruled surface. The invention can solve the difficult problem of characterizing the shape of ruled curved surfaces processed by side milling, and provides important technical support for virtualized manufacturing of actual processing.

Description

technical field [0001] The invention belongs to the technical field of precision machining, and in particular relates to a surface topography modeling and molding simulation method for side milling ruled surface. Background technique [0002] With the development of national defense, aerospace, energy, medical, optical components and other technologies and related industries, more and more basic equipment is required for some key components such as aerospace gyroscopes, computer drums, disks, polygonal prisms, large-diameter Spherical mirrors, and stereoscopic prisms with complex shapes put forward higher requirements. Such components have extremely high requirements on processing accuracy, surface roughness and three-dimensional surface topography distribution. Using conventional grinding, grinding, polishing and other methods for processing, not only the processing cost is high, but also it is difficult to meet the accuracy and surface roughness at the same time. It is ev...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/23G05B19/4099
Inventor 王伟蒋云峰张敏赵睿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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