Complex part numerical control technology optimization and adjustment method facing technology reuse

A technology for complex parts and process optimization, applied in the field of CNC process optimization and adjustment, can solve problems such as low efficiency, and achieve the effect of improving the utilization of tool processing capabilities, enhancing practicability, and high-efficiency CNC process solutions

Active Publication Date: 2019-06-18
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0003] In order to overcome the inefficiency of the existing numerical control process optimization and adjustment method,

Method used

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  • Complex part numerical control technology optimization and adjustment method facing technology reuse
  • Complex part numerical control technology optimization and adjustment method facing technology reuse
  • Complex part numerical control technology optimization and adjustment method facing technology reuse

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[0051] Reference Figure 1-6 . The specific steps of the numerical control process optimization adjustment method for complex parts for process reuse according to the present invention are as follows:

[0052] 1. Optimized adjustment of tools for manufacturing feature processing.

[0053] Step 1) Divide the entire manufacturing feature into multiple processing areas according to the tool processing capability and the geometric characteristics of the manufacturing feature. For each processing area divided by complex features, it contains multiple sub-processing areas and corresponds to certain geometric characteristics and processing strategies. At the same time, a processing operation is generated in the CAM system, so the complex feature F is expressed as

[0054]

[0055] MR=T∪M S ∪D G

[0056] Among them, O is the number of processing areas divided, MR k It is the kth processing area. MR is the processing area, T is the processing tool, M S It is a processing strategy, including ...

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Abstract

The invention discloses a complex part numerical control technology optimization and adjustment method facing technology reuse. The method is used to solve a technical problem that an existing numerical control technology optimization and adjusting method has low efficiency. In the technical scheme, optimization and adjustment are performed from aspects of cutter processing and a cutting depth. Onthe aspect of cutter processing, a processing cutter combination scheme of a complex characteristic is preferably selected, and partial structure processing cutters are merged and adjusted so as to reduce the number of cutter changing and shorten an empty cutter length. On the aspect of a cutting depth parameter, the cutting depth can be optimized through a reasonable cutting mode, and an optimized processing area can be obtained so as to fully use a cutter processing capability, finally acquire a high-efficient numerical control technology scheme and improve the processing efficiency of complex parts.

Description

technical field [0001] The invention relates to a numerical control process optimization adjustment method, in particular to a process reuse-oriented numerical control process optimization adjustment method for complex parts. Background technique [0002] The document "A dynamic feature–based operation planning method for 2.5-axis numerical control machining of complex structural parts, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2015, Vol229(7): p1206-1220." An optimal adjustment algorithm for NC machining process based on dynamic features. This method uses the configuration space to represent and analyze the processing influence (undercut or interference) of the feature, and updates and optimizes the overall processing technology through the iterative adjustment of the process plan. The method described in the literature adjusts the process parameters in the radial direction of the tool by detecting the defect or int...

Claims

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Application Information

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IPC IPC(8): G05B19/408
Inventor 黄波张树生李秀玲张亚军梁嘉宸
Owner NORTHWESTERN POLYTECHNICAL UNIV
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