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Online thickness monitoring and machining method for large frame and beam part webs

A processing method and parts technology, which is applied in the field of online monitoring and processing of web thickness of large frame and beam parts, can solve problems such as instability, hindering the flexible construction of large frame and beam parts production lines, and increasing production state control, so as to ensure stability , The measurement results are true and reliable, and the effect of improving production efficiency

Pending Publication Date: 2021-11-02
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional processing scheme for the web processing of large frame and beam parts still adopts the method of "NC machining-manual measurement of part web thickness-NC supplementary processing". This manual measurement and processing mode greatly hinders large-scale The flexible construction of frame and beam parts production lines also increases the instability of production state control

Method used

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  • Online thickness monitoring and machining method for large frame and beam part webs
  • Online thickness monitoring and machining method for large frame and beam part webs
  • Online thickness monitoring and machining method for large frame and beam part webs

Examples

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Embodiment approach

[0030] This embodiment discloses an on-line monitoring and processing method for the web thickness of a large frame and beam part, as a basic implementation of the present invention, including the following steps:

[0031] S1, establishing a thickness measurement system based on the CNC machine tool 12, mainly because the thickness measurement system needs to be attached to the CNC machine tool 12 for layout, and the thickness measurement system needs to cooperate with the CNC machine tool 12;

[0032] S2, for the large-scale frame and beam parts processed by the CNC machine tool 12, the thickness measuring system is used to perform automatic online measurement of the web thickness of the part; Finished molded parts, which have not been precision trimmed;

[0033] S3, the thickness measurement system calculates the error between the actual part web thickness and the theoretical value based on the measured information, that is, the theoretical value of the tool lift for part we...

Embodiment 2

[0038] This example discloses an on-line monitoring and processing method for the web thickness of a large frame and beam part. As a preferred embodiment of the present invention, that is, in step S1 in Example 1, the thickness measuring system includes a measuring head 3, a spring force measuring Mechanism 6, data processor 10, piezoelectric sensor 7, digital-to-analog converter 8 and wireless transmission device 9 electrically connected in sequence, wireless transmission device 9 and data processor 10 are connected in communication, data processor 10 and numerical control machine tool 12 The control system 11 is electrically connected; the measuring head 3 is connected with the spindle 1 of the CNC machine tool 12 through the handle 2 of the CNC machine tool 12 , and the two ends of the spring force measuring mechanism 6 are respectively connected to the lower surface of the web of the part and the piezoelectric sensor 7 .

[0039] In actual use, the measuring head 3 is used ...

Embodiment 3

[0042] This example discloses an online monitoring and processing method for the web thickness of a large frame beam part. As a preferred embodiment of the present invention, based on the thickness measurement system mechanism in Example 2, in step S2, the online monitoring of the web thickness of the part Measurement consists of the following steps:

[0043] S21, control the movement of the spindle 1 of the CNC machine tool 12, move the side head to the upper surface 4 of the part web, obtain the coordinate information of the upper surface of the part web through the measurement of the probe 3, and transmit the coordinate information of the upper surface of the part web through the data port Transmission to the data processor 10; wherein, the coordinate information on the upper surface of the part web is measured based on the machining coordinate system of the part web, and the coordinate information is mainly the Z axis (that is, the coordinate axis perpendicular to the CNC m...

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Abstract

The invention belongs to the technical field of metal cutting machining, and particularly relates to an online thickness monitoring and machining method for large frame and beam part webs. The method comprises the steps that a thickness measuring system is established based on a numerical control machine tool, and the thicknesses of part webs are automatically measured online through the thickness measuring system; the thickness measuring system calculates the error between each actual part web thickness and the theoretical value based on the measured information, the error is input into a control system of the numerical control machine tool, and the control system of the numerical control machine tool generates a part web cutter lifting machining path according to the obtained part web machining theoretical cutter lifting value; and the numerical control machine tool is started to automatically complete supplementary machining of the part webs based on the machining path. According to the technical scheme, automatic measurement and machining of the thicknesses of the part webs are achieved, the risk of manual intervention in machining is reduced, and the method has important significance on flexible construction of a large frame and beam part production line.

Description

technical field [0001] The invention belongs to the technical field of metal cutting, and in particular relates to an on-line monitoring and processing method for web thickness of large frame and beam parts. Background technique [0002] Due to the influence of uncertain factors such as tool error, spindle elongation, and part deformation during the processing of aircraft frame and beam parts, it is difficult to process the web thickness of the part in place at one time, and it is necessary to add measurement methods during the processing to monitor Part web thickness status. At present, the traditional processing scheme for the web processing of large frame and beam parts still adopts the method of "NC machining-manual measurement of part web thickness-NC supplementary processing". This manual measurement and processing mode greatly hinders large-scale The flexible construction of the frame and beam parts production line also increases the instability of production state c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/20
CPCB23Q17/20
Inventor 许亚军廖双权任德祖陈云安之宇
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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