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Compensation method for edge effect of high precision aspheric milling

A technology of edge effect and compensation method, used in metal processing, metal processing equipment, metal processing machinery parts, etc., can solve the problems of tool lift, edge collapse and swaying of processed workpiece, and eliminate edge slump or warping. , The effect of good workpiece surface and more reasonable workpiece surface

Active Publication Date: 2016-09-28
SHANGHAI MODERN ADVANCED ULTRA PRECISION MFG CENT
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Problems solved by technology

However, this method is only theoretically correcting the curve, and there will be deviations from the curve required in actual processing. Since the detection data cannot be measured in the whole process, the milling machine will add processing by itself in order to make up for the data blind area in this processing interval. Data, forming a free tool path; this will cause the tool to be raised or lowered, resulting in the phenomenon that the edge of the workpiece is collapsed or lifted

Method used

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  • Compensation method for edge effect of high precision aspheric milling
  • Compensation method for edge effect of high precision aspheric milling
  • Compensation method for edge effect of high precision aspheric milling

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Embodiment Construction

[0026] Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail, present embodiment implements under the premise of technical solution of the present invention, has provided detailed embodiment and specific operation process, but protection scope of the present invention is not limited to Examples described below.

[0027] figure 1 It is an embodiment diagram of an aspherical workpiece to be processed, and the formula of the aspheric surface is as follows:

[0028] Z = c · r 2 1 + 1 - ( 1 + k ) · c 2 · ...

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Abstract

A high-precision aspheric-surface milling and grinding edge effect compensation method includes the steps that standard equation machining is performed on aspheric-surface workpiecs to be machined, a contourgraph is used for detecting the face types of the workpieces having been subjected to the standard equation machining, correction is performed with a detection report obtained through the contourgraph as a reference, corrected data are used for obtaining correcting tool paths, and adjustment is performed in the positive and negative direction of the X axis of a tool. The method effectively eliminates the effect phenomenon of a machined edge caused by errors of detection data, the face types of the workpieces become better and more reasonable, and indexes required by a technology are achieved.

Description

technical field [0001] The invention relates to the technical field of ultra-precision machining and measurement, in particular to a compensation method for edge effects of high-precision aspheric milling and grinding. Background technique [0002] To process high-precision surface-type aspheric surfaces with milling machines, it is necessary to go through the aspheric surface forming milling and grinding, then measure the aspheric surface accuracy, and then perform aspheric surface error compensation milling and grinding according to the measurement data. If the original measurement data is used to compensate for milling and grinding at this time, the edge of the workpiece will often collapse or warp, which will directly lead to out-of-tolerance surface accuracy and cannot meet the processing accuracy requirements. [0003] A profiler is used to measure the workpiece, but due to the nature of the profiler itself and the limitation of the machining accuracy of the milling ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/12B23Q17/20
CPCB23Q15/12B23Q17/20
Inventor 刘天豪黄晨浩陈静郑强
Owner SHANGHAI MODERN ADVANCED ULTRA PRECISION MFG CENT
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