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A Characterization Method for Typical Rotary Parts Based on Measured Runout Data

A technology of revolving body and data, applied in measurement devices, complex mathematical operations, mechanical measurement devices, etc., can solve the problems of predicting the impact of assembly accuracy, ignoring the macro size of parts, etc., to achieve the effect of simplifying the calculation process and efficiently calculating the model

Active Publication Date: 2020-10-20
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the more common method is to use small displacement screw to characterize each mating surface of a part, but a part often has multiple mating surfaces, and multiple small displacement screw matrices are required to completely characterize all mating surfaces of a part In addition, this characterization method can only realize the characterization of the microscopic topography of the mating surface, ignoring the macroscopic size of the part itself, and in the assembly process, the coupling between the macroscopic size of the part and the topography of the mating surface will be Have a certain impact on the assembly accuracy prediction

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  • A Characterization Method for Typical Rotary Parts Based on Measured Runout Data
  • A Characterization Method for Typical Rotary Parts Based on Measured Runout Data
  • A Characterization Method for Typical Rotary Parts Based on Measured Runout Data

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Embodiment Construction

[0050] In order to make the purpose of the present invention, technical solutions and advantages described more clearly, take a typical revolving body part (a certain type of engine rotor part) as an example below, in conjunction with the accompanying drawings in the examples of the present invention, carry out the technical solution in the present invention full description.

[0051] The existing iMap4 comprehensive measurement and assembly platform of a certain company is used to measure the rotor. Each end face measures two sets of runout data of the inner ring and the outer ring, and each notch only measures a set of radial runout data. The measured data are as follows: Figure 3 shows.

[0052] The measuring point position during the test is: r bot1 =123, r bot2 =133, r top1 =168, r top2 =178,R bot =120, R top =165. The axial height Z=120 of the part. Using the method in step 2 to process the measured data, the spatial point cloud data D at the end surface can be o...

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Abstract

The present invention provides a typical revolving body part characterization method based on measured runout data, and proposes a matrix form characterization method that comprehensively considers microscopic runout data and macroscopic axial dimensions for the characterization of revolving body parts that include topographical data. In addition This method can be applied to the calculation process of assembly accuracy. Only one matrix M can be used to represent a single part including the shape feature, which simplifies the calculation process of accuracy transfer and provides an efficient calculation model for the prediction of assembly accuracy.

Description

technical field [0001] The invention relates to a characterization method for a revolving body part including an interference stop, in particular to the characterization of a revolving body part based on actually measured runout data of mating surfaces. Background technique [0002] Revolving parts are typical components in rotating machinery such as wind power equipment and engine rotors. Since the mating surface of revolving parts is not an ideal plane, but a surface with certain shape characteristics, when assembling revolving parts, if If the influence of the shape characteristics of the mating surface is not considered, there will be a certain deviation between the predicted value and the actual value of the assembly accuracy, which will make the assembly quality of the product unable to be guaranteed, and even lead to product failure. Therefore, in the process of assembly prediction, it is particularly important to realize the accurate characterization of part feature ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/00G01B21/10G06F17/10
CPCG01B21/00G01B21/10G06F17/10F16D1/033G01B5/004G01B5/252G06F17/16
Inventor 孙清超赵斌斌汪云龙刘亮穆晓凯孙克鹏
Owner DALIAN UNIV OF TECH