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A method for automatic milling of precision holes

A milling and precision technology, applied in the field of automatic milling of precision holes, can solve problems such as unstable quality, low degree of automation, and low processing efficiency, and achieve the effect of ensuring surface quality, stable processing process, and continuous trajectory

Active Publication Date: 2022-01-25
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above technical problems, the present invention proposes an automatic milling method for precision holes, which can effectively solve the problems of low processing efficiency, unstable quality and low degree of automation in the process of fine hole processing

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  • A method for automatic milling of precision holes
  • A method for automatic milling of precision holes
  • A method for automatic milling of precision holes

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Embodiment 1

[0040] As the basic embodiment of the present invention, the present invention includes an automatic precision hole milling system, including a main system and a coordinate system alignment system connected to the main system, a rough machining system, a variable milling system and a probe measurement system, the main system Including calling the coordinate system alignment subsystem, calling the rough machining subsystem, initial variable assignment system, calling the variable milling subsystem, calling the probe measurement subsystem and variable iterative calculation system. The variable hole milling system includes calculation of tool center coordinates and helical interpolation hole milling program. The probe measurement system includes a probe hole measurement program and the assignment of the actual measured value of the aperture.

[0041] The method for using the precision hole automatic milling system specifically includes the following process steps:

[0042] a. Th...

Embodiment 2

[0051] As the best implementation mode of the present invention, with reference to the attached figure 1 , the present invention includes a precision hole automatic milling method specifically includes the following process steps:

[0052] a. The main system calls the coordinate system alignment system to align the processing coordinate system 2 of the processed hole 1. The position of the processing coordinate system 2 of the processed hole 1 includes but is not limited to the center of the hole 1 to be processed.

[0053] b. The main system invokes the rough machining system, and performs rough machining on the processed hole 1 according to the machining coordinate system 2, and leaves a margin after rough machining, and the margin after rough machining is 0.1-0.4mm.

[0054] c. The main system initially assigns values ​​to machine variables, and controls the milling hole diameter through machine variables. The initial assignment of the machine tool variable is B=D-A / 2, whe...

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Abstract

The invention relates to the technical field of metal cutting, in particular to an automatic milling method for precision holes, which includes leaving a certain margin for rough machining after positioning the machined holes, initial assignment of machine tool variables, and precision by output spiral interpolation. processing, and then call the probe to measure the actual value of the processed hole diameter; then calculate the difference between the actual value and the theoretical value, and then compensate the difference to the variable of the control hole diameter, and finally through the iterative calculation of the machine tool variables will be The machining hole is machined to the theoretical value. The method can effectively solve the problems of low processing efficiency, unstable quality and low degree of automation in the fine hole processing process.

Description

technical field [0001] The invention relates to the technical field of metal cutting, in particular to an automatic milling method for precision holes. Background technique [0002] In recent years, my country's aviation manufacturing industry has developed rapidly. In order to adapt to the development trend of intelligent manufacturing technology of aircraft structural parts based on digitization, aviation main engine manufacturers are gradually changing the existing manufacturing mode of aircraft structural parts, and implementing digital and informatization-based flexible The construction of production lines and digital workshops can improve the automation level of aircraft structural parts processing, meet the needs of production flexibility and automation, and realize the improvement of manufacturing technology with aviation manufacturing technology as a breakthrough. [0003] With the development of aircraft structural composite design technology, the manufacturing prec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 黄景康王琪张杨尚江阮超张云诏郭国彬
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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