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Three-dimensional vibration-assisted milling system and structural surface three-dimensional vibration-assisted milling method

A three-dimensional vibration and milling processing technology, which is applied in the direction of metal processing equipment, milling machine equipment, manufacturing tools, etc., can solve the problems that the machining accuracy and machining efficiency of structural surfaces are difficult to improve at the same time, and achieve the reduction of crack growth, high operating accuracy, and smooth processing. small force effect

Active Publication Date: 2021-05-28
广东致志精密塑胶模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a three-dimensional vibration-assisted milling processing system for the problem that the structural surface processing accuracy and processing efficiency in the prior art are difficult to improve at the same time

Method used

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  • Three-dimensional vibration-assisted milling system and structural surface three-dimensional vibration-assisted milling method
  • Three-dimensional vibration-assisted milling system and structural surface three-dimensional vibration-assisted milling method
  • Three-dimensional vibration-assisted milling system and structural surface three-dimensional vibration-assisted milling method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Three-dimensional vibration-assisted milling processing system, including CNC machine tools and three-dimensional vibration auxiliary devices8, such as figure 1 As shown, the CNC machine tool includes an X-direction slide rail 1, a Y-direction slide rail 2, and a Z-direction slide rail 3 at the top, and a Z-direction rotating shaft 10 and a Y-direction rotating shaft 11 at the bottom, wherein:

[0057] The X-direction slide rail 1 is perpendicular to the Y-direction slide rail 2, and the Z-direction slide rail 3 is driven to move horizontally along the X-direction slide rail 1 in the X-axis direction, and moves along the Y-direction slide rail 2 Moving horizontally in the Y-axis direction, the processing assembly is driven to move horizontally in the Z-axis direction along the Z-direction slide rail 3. The processing assembly includes a driving mechanism, a main shaft 4 driven by the driving mechanism and fixed on the Tool 5 on spindle 4;

[0058] The workpiece 6 is fi...

Embodiment 2

[0062] In the three-dimensional vibration-assisted milling system of Embodiment 1, a coordinate system is established. There are three coordinate systems in total: processing system coordinate system, workpiece coordinate system and tool coordinate system.

[0063] (1) Processing system coordinate system:

[0064]The coordinate system of the processing system is represented by O-XYZ, which is based on the center of the machine table as the origin, the X-axis is parallel to the X-direction slide rail of the machine tool, the Y-axis is parallel to the Y-direction slide rail of the machine tool, and the Z-axis is parallel to the Z-direction slide rail of the machine tool.

[0065] (2) Workpiece coordinate system:

[0066] The workpiece coordinate system uses O W -X W Y W Z W Indicates that the origin is located at a certain point on the workpiece, X W Axis, Y W Axis, Z W The axes are all parallel to the X-axis, Y-axis, and Z-axis in the coordinate system of the machining ...

Embodiment 3

[0070] A three-dimensional vibration-assisted milling method for a structured surface, comprising the following steps:

[0071] Define the tool coordinate system as O T -X T Y T Z T , define the workpiece coordinate system as O W -X W x W Z W .

[0072] Step 1. In the tool coordinate system, the surface topography equation of the modeling tool is:

[0073]

[0074] In the formula (1), the x T ,y T ,z T is the coordinate of any point on the tool surface in the tool coordinate system, denoted as C T Point coordinates, R is tool surface C T The distance from the point to the tool axis, θ is O T C T at x T o T Y T Surface Projection and X T Angle of the axis.

[0075] In the formula (1), when the shape of the tool is spherical with a radius of r, the value of R is rsinφ, where The value of r is 1 during simulation.

[0076] Step 2, in the workpiece coordinate system, the surface topography equation of the workpiece is established as:

[0077] F(x w ,y ...

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Abstract

The invention discloses a structural surface three-dimensional vibration-assisted milling method. The method comprises the following steps: establishing tool and workpiece surface topography mathematical models, setting running paths of a three-dimensional vibration device and a numerical control machine tool, calculating the position and attitude relation of a tool and a workpiece at each moment in the machining process, and carrying out contrastive analysis to obtain the structure morphology after vibration-assisted milling. According to the vibration-assisted milling method, by combining with the features of high degree of freedom of numerical control milling, rich types of processed surfaces, as well as wide working frequency range and high operation precision of the vibration device, tiny structural surfaces can be prepared on various complex free-form surfaces.

Description

technical field [0001] The invention relates to the technical field of structural surface processing, in particular to a three-dimensional vibration-assisted milling system and a three-dimensional vibration-assisted milling method for a structured surface Background technique [0002] In nature, many biological surfaces are evenly and neatly arranged with some periodic microstructures, which make the biological surfaces exhibit various properties. The application of the drag-reducing structure on the surface of shark skin can solve the problems of aircraft thermal shock and high-speed rail speed-up. The application of the hydrophobic structure on the surface of the lotus leaf can solve the problem of antifouling on the bottom of the ship. The wonderful functions brought about by the tiny structures on the surface of these materials are pushing my country's aerospace and national defense industry into a new era. [0003] With the research of structural surface processing te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00
CPCB23C3/00Y02T70/10
Inventor 王桂莲刘文瑞吕秉锐冯志坚闫世程刘利周海波
Owner 广东致志精密塑胶模具有限公司
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