Cutter spacing optimizing method for cydariform knife tool multiple coordinates line width processing

A tool position optimization, wide-row machining technology, applied in the direction of comprehensive factory control, digital control, electrical program control, etc., can solve problems such as unfavorable non-toroidal knife expansion, non-convergence, unfavorable tool path, etc., to increase the degree of programming automation , the effect of reducing acceleration requirements and improving processing efficiency

Inactive Publication Date: 2007-10-31
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

The common deficiencies of these methods are: 1) Using the cutting tool and the workpiece to optimize the tool position at one point is not conducive to the later wave height arrangement of the tool track; 2) The tool position optimization and interference checking are not unified into one model, which requires subsequent Iterative adjustment calculation; 3) Using the method of tangential point calculation can easily lead to error amplification and tool path fluctuations, or even non-convergence; 4) It cannot be used to solve the problem of tool position optimization for drum-shaped knives
This method hopes to directly measure the size of the processing error by using the method of dividing the whole into zero, but the specific method used has theoretical errors.
Ni Yanrong et al. (200

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  • Cutter spacing optimizing method for cydariform knife tool multiple coordinates line width processing
  • Cutter spacing optimizing method for cydariform knife tool multiple coordinates line width processing
  • Cutter spacing optimizing method for cydariform knife tool multiple coordinates line width processing

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Embodiment Construction

[0027] The present invention is a tool position optimization method for multi-coordinate wide row machining of a drum-shaped tool, which has the following optimization steps:

[0028] (1) Select the first reference point RPS of the workpiece on the workpiece design surface 1 , at the first reference point RPS of the workpiece 1 The first coordinate system S of the workpiece is established on s1 (x s1 -y s1 -z s1 ); Then pick up the second reference point RPS of the workpiece in the direction of the normal line outside the point 2 , and at the workpiece second reference point RPS 2 The second coordinate system S of the workpiece is established on s2 (x s2 -y s2 -z s2 ), and the workpiece first coordinate system S s1 and workpiece second coordinate system S s2 Parallel; the second coordinate system S of the workpiece s2 around z s2 Rotate the axis counterclockwise by γ angle to obtain the third coordinate system S of the workpiece s3 (X s3 -y s3 -z s3 ) coordina...

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Abstract

This invention relates to one bump knife tool multi-coordinate wide row process optimization method, which comprises the following steps: isolating the tool into one set of intense latitude lines according to its process type; through computation on each latitude line distance to process design curve to get error distribution function; accordingly establishing wide computation method and restrains to form tool optimization module. To avoid backward adjust, the part is selected with one control point and to determine one point beyond for one relative initial position from one point in program public error and the selection point.

Description

technical field [0001] The invention relates to a method for optimizing the tool position and motion track applicable to the machining process of a multi-coordinate numerical control machine tool. The method for optimizing the position and attitude of a drum-shaped tool by dividing the latitude line can be used to precisely control the machining error and greatly improve the machining efficiency. And significantly reduce programming difficulty and workpiece manufacturing costs. Background technique [0002] When machining the curved surface of a cylindrical workpiece with a ball-end cutter, if the radius of curvature of the tool is equal to the radius of curvature in a certain direction at any point on the curved surface of the workpiece, and the concave and convex are opposite, a wide processing area can be processed on the curved surface of the workpiece at one time. The effective width of a region is called the line width. Theoretically, the line width of surface process...

Claims

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Application Information

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IPC IPC(8): G05B19/19
CPCY02P90/02
Inventor 陈志同张洪陈五一张俐
Owner BEIHANG UNIV
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