Simulation method of modeling and forming surface topography for side-milling ruled surface

A ruled surface and surface topography technology, applied in simulators, special data processing applications, instruments, etc., can solve problems such as low efficiency and low simulation accuracy, and achieve the goal of improving simulation accuracy, improving simulation efficiency, and saving simulation time Effect

Active Publication Date: 2018-01-12
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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  • Simulation method of modeling and forming surface topography for side-milling ruled surface
  • Simulation method of modeling and forming surface topography for side-milling ruled surface
  • Simulation method of modeling and forming surface topography for 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] Such as 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 u...

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Abstract

The invention discloses a simulation method of modeling and forming a surface topography for a side-milling ruled surface. The simulation method comprises the steps that firstly, a principal axis coordinate system is established accurately using a cutter position file according to the side milling mode of a five-axis machine tool, a kinematic description of a tool cutting edge is carried out considering the situation of tool vibration and cutter jumping in actual machining, and a series of discrete blade spacial point cloud data is obtained; then grid division is conducted according to a mathematical equation of the ruled surface and a required simulation area, and a random inclusion box of each grid node is built; the point cloud data in each containment box is analyzed, the lowest representation point affecting the surface topography is extracted, all grid nodes are traversed, and finally a three-dimensional surface topography of the ruled surface is obtained. According to the simulation method of modeling and forming the surface topography for the side-milling ruled surface, the problem of characterizing surface topography of the side milling machining can be solved, and important technical support is provided for virtual manufacturing of the actual machining.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G05B19/4099
Inventor 王伟蒋云峰张敏赵睿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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