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Cam machining process

A processing method and cam technology, which are applied in metal processing, metal processing equipment, metal processing machinery parts, etc., can solve the problems of processing accuracy limitation, large mechanical error of cam, and wear of the mold.

Inactive Publication Date: 2006-08-23
SIEMENS FACTORY AUTOMATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the profiling processing method is that the machining accuracy is limited by the accuracy of the profiling itself, and the profiling itself will be worn continuously, so the mechanical error of the processed cam will become larger and larger

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  • Cam machining process
  • Cam machining process
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Embodiment Construction

[0027] The method for determining the position array of the feed axis in polar coordinates in the present invention is given below by way of example. It should be pointed out that the method of the present invention is not limited to the methods indicated by these examples.

[0028] When the roller measurement method is used, the outer diameter r (lift) of the cam design curve is determined at a certain interval (the step value δ of the polar angle α) according to the curvature of the surface to be processed, and multiple α and r are obtained. Array (α1, r1), (α2, r2), (α3, r3), ……; can set α2=α1+δ, α3=α2+δ=α1+2δ,……

[0029] According to the array, the array representing the position of the feed axis can be deduced mathematically according to the required precision and the machining means adopted.

[0030] For example, if the number of arrays representing the design curve is large enough, you can take the line connecting two adjacent points, draw a perpendicular line outward ...

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Abstract

In the numerically controlled cam machining process, coordinate array describing the cam design curve is first obtained via roller measurement; the coordinates of one point corresponding to the rotation center of the circular cutting tool is then calculated geometrical based on the coordinates of several adjacent point in designed cam curve, and the calculation is repeated to obtain the relative motion curve of the rotation center of the cutting tool corresponding to the whole designed curve and cam is machined in a cam machining equipment by making the cam and the cutting tool move relatively based on the said curve.

Description

technical field [0001] The invention relates to a machining method of a cam, in particular to a full numerical control machining method of an electromechanical combined plane cam. Background technique [0002] The design data of the cam can be obtained based on three measurement methods, the knife edge measurement method, the flat bottom measurement method and the roller measurement method. In addition to the measurement data based on the knife-edge measurement method, the design data obtained by the other two measurement methods are not the actual contour data of the cam, so these design data cannot be directly processed. [0003] In the prior art, for the cam designed based on the above three measurement methods, the cam is processed by the profiling method according to the design data of the cam. Using the profiling method to process the cam, it is necessary to make a set of molds, namely the profiling, and then use the profiling to produce a suit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/013G05B19/19B23P15/06G05D5/00
Inventor 李劲松张嘉彧
Owner SIEMENS FACTORY AUTOMATION ENG