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Profile finish machining method based on three-dimensional cam profile materialization model deviation compensation

A materialized, cam-type technology, applied in the field of parts finishing, can solve the problems of high processing cost, unstable cam surface quality, frequent batch problems, etc., and achieve the effect of ensuring the quality level

Active Publication Date: 2021-03-19
XIAN AERO ENGINE CONTROLS
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Problems solved by technology

If the processing conclusion is qualified, it can be transferred to the subsequent process. If it is not qualified, it will be scrapped. It is impossible to compensate and adjust the processing program based on the extreme radius deviation result. After finishing, the quality of the cam profile is unstable, the processing cost is high, and batch problems occur frequently.

Method used

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  • Profile finish machining method based on three-dimensional cam profile materialization model deviation compensation

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Embodiment

[0027] A finishing method based on deviation compensation of a solid model of a three-dimensional cam profile, comprising the following steps:

[0028] 1) Process the sample according to the solid model of the three-dimensional cam surface;

[0029] Specifically, use the programming module of UG NX software to reasonably select the processing tool, driving geometry, cutting mode, etc., establish the CNC program based on the five-axis CNC machining center, and process the sample.

[0030] 2) On-line detection of the polar radius deviation Δr on the XY projection plane in the Cartesian coordinate system of multiple original detection qualified points and their corresponding processing points on the processed sample;

[0031] Using the Leitz three-coordinate measuring and testing equipment to online detect the coordinates of multiple original detection qualified points on the processed sample (x i0 、y i0 ,z i0 ) and the coordinates of the corresponding processing point (x i1 ...

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Abstract

The invention belongs to the technical field of part finish machining, and relates to a profile finish machining method based on three-dimensional cam profile materialization model deviation compensation. The method comprises the following steps of: 1) machining a sample piece according to a three-dimensional cam profile materialization model; (2) detecting radius deviation values delta r of a plurality of original detection qualified point positions and corresponding processing point position poles on the processing sample piece; 3) the delta r is converted into a vector component, and a plurality of new point locations are obtained through conversion; 4) reconstructing a digital model of the three-dimensional cam profile according to the plurality of new point locations and the pluralityof original qualified detection point locations; 5) performing numerical control programming processing on the digital model to obtain a newly processed sample piece; and (6) detecting that the detection results of the plurality of original detection qualified point positions and the corresponding new processing points are consistent on the new processing sample piece. According to the method, the three-dimensional cam profile digital model and the numerical control program can be quickly and accurately compensated and modified according to the measurement and detection result, namely the polar radius deviation value of the three-dimensional cam profile, the cost is low, and the product quality is stable.

Description

technical field [0001] The invention belongs to the technical field of parts finishing, and relates to a three-dimensional cam profile finishing method, in particular to a profile finishing method based on deviation compensation of a three-dimensional cam profile solid model. Background technique [0002] The general three-dimensional cam surface finishing method is to use the three-dimensional mechanical digital programming software to compile the processing program based on its digital model, and then use the five-axis CNC machining center equipment to select reasonable allowances and cutting parameters to process the surface . According to the measurement and testing results, that is, the extreme radius deviation value of the three-dimensional cam profile, it is judged whether the cam profile is qualified. If the processing conclusion is qualified, it can be transferred to the subsequent process. If it is not qualified, it will be scrapped. It is impossible to compensate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/37193
Inventor 于洋刘猛戴彦辰张晓东刘碑黑金龙
Owner XIAN AERO ENGINE CONTROLS
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