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Five-axis numerical control machine tool planar processing process ball-end cutter and workpiece contact area semi-analytic modeling method

A technology of ball-end milling cutter and contact area, which is applied in the field of five-axis CNC machine tool processing, can solve the problem of semi-analytical modeling without ball-end milling cutter and workpiece contact area, and achieve high engineering application value

Active Publication Date: 2018-01-05
DALIAN UNIV OF TECH
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Problems solved by technology

[0005] At present, there is no semi-analytical modeling method for the contact area between the ball end milling cutter and the workpiece in the plane machining process of five-axis CNC machine tools in China.

Method used

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  • Five-axis numerical control machine tool planar processing process ball-end cutter and workpiece contact area semi-analytic modeling method
  • Five-axis numerical control machine tool planar processing process ball-end cutter and workpiece contact area semi-analytic modeling method
  • Five-axis numerical control machine tool planar processing process ball-end cutter and workpiece contact area semi-analytic modeling method

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Embodiment Construction

[0025] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0026] A semi-analytical modeling method for the contact area between the ball end milling cutter and the workpiece in the plane machining process of the five-axis CNC machine tool, including the following steps:

[0027] Step 1: Carry out tool path planning and set NC machining parameters.

[0028] The radius of the ball head of the ball end milling cutter is R, and the ball end milling cutter is used for plane milling on a five-axis CNC machine tool. The inclination angle is β degrees, where α and β are both set to positive values.

[0029] Step 2: Determine the composition of the contact area boundary between the ball end mill and the workpiece when the forward inclination angle is α degree and the side inclination angle is β degree, and transform the problem of solving the boundary of the contact area into the ...

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Abstract

The invention relates to a five-axis numerical control machine tool planar processing process ball-end cutter and workpiece contact area semi-analytic modeling method and belongs to the processing field of a five-axis numerical control machine tool. The method comprises steps that firstly, according to monotone distribution characteristics of a ball-end cutter along the axis direction, a ball-endcutter and workpiece contact area boundary three-dimensional solution problem is converted into a boundary two-dimensional solution problem of the contact area perpendicular to a cutter axis plane projection; secondly, through geometric derivation, a solution problem of the ball-end cutter and workpiece contact area boundary in an Xm-Ym plane projection equation is converted into a solution problem of the boundary in a projection equation of an X-Y plane; and lastly, through a semi-analytic modeling method, the projection equation of the ball-end cutter and workpiece contact area boundary in the Xm-Ym plane is acquired. The method is advantaged in that the ball-end cutter and workpiece contact area under a front inclination angle alpha and a side inclination angle beta can be precisely andefficiently constructed, vacancy of the ball-end cutter and workpiece contact area boundary identification method in the processing process on the five-axis numerical control machine tool at home andabroad can be made up, and relatively high engineering application values are realized.

Description

technical field [0001] The invention belongs to the field of five-axis numerical control machine tool processing, in particular to a semi-analytic modeling method for the contact area of ​​a ball end milling cutter with a workpiece when there is a forward inclination angle and a side inclination angle in the plane machining process of a five-axis numerical control machine tool. Background technique [0002] It has always been the goal of the manufacturing industry to efficiently process the designed high-performance workpieces with high quality and quantity. However, due to the lack of effective tools to accurately describe cutting statics and cutting dynamics, in the actual machining process, operators have to adopt conservative machining parameters in order to avoid adverse conditions such as overload and chatter, which in turn affects machining accuracy and machining accuracy. efficiency. [0003] The contact area between the ball nose milling cutter and the workpiece is...

Claims

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Application Information

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IPC IPC(8): G05B19/408
Inventor 李宏坤代月帮
Owner DALIAN UNIV OF TECH
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