Gear hobbing method for technological parameter self-learning optimization in machining process

A technology for process parameter optimization and process parameter application in the field of gear processing, which can solve the problems of poor generalization ability, inability to learn optimization, unstable output of a single neural network, etc., to overcome the slow convergence speed and improve the effect of gear hobbing processing.

Inactive Publication Date: 2015-07-15
CHONGQING UNIV
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AI Technical Summary

Problems solved by technology

The hobbing process parameters have their particularity, and the output of a single neural network often appears unstable, that is, the generalization ability is poor, and the above method cannot be directly applied to the self-learning optimization of process parameters in the process of gear hobbing. Research in this area is lacking

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  • Gear hobbing method for technological parameter self-learning optimization in machining process
  • Gear hobbing method for technological parameter self-learning optimization in machining process
  • Gear hobbing method for technological parameter self-learning optimization in machining process

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Embodiment Construction

[0023] The train of thought of the present invention is: utilize the improved backpropagation neural network algorithm to transform the decision-making input variable set into the decision-making output variable set, and have the hobbing process parameter optimization population that the differential evolution algorithm needs to form the decision-making output variable set; Utilize this population Carry out separate processing, and with the support of the hobbing effect evaluation model, the differential evolution algorithm can continuously optimize the process parameters in the hobbing process. After meeting the cut-off conditions, the global optimal process instance of the population is obtained, that is, the comprehensive The process instance with the best evaluation value is used for subsequent hobbing and stored in the process instance set. When there is a new problem of gear hobbing, repeat the above steps to complete the automatic hobbing process parameters in the process...

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Abstract

The invention discloses a gear hobbing method. The method is characterized in that in the gear hobbing process, self-learning optimization of gear hobbing technological parameters is carried out according to the following specific steps of 1, constructing a gear hobbing effectiveness evaluation model, 2, generating a gear hobbing technological parameter optimization group and 3, achieving self-learning optimization of the gear hobbing technological parameters. The method has the advantages that in the gear hobbing process, an improved back-propagation neural network and a differential evolution algorithm are used for improving the hobbing technological parameters, self-learning optimization of the technological parameters can be achieved, and better technological parameters are sought; the optimized technological parameters are stored in a technological living example set, and effective data support can be provided for new gear hobbing problems.

Description

technical field [0001] The invention relates to gear processing technology, in particular to a processing method for optimizing process parameters during gear hobbing. Background technique [0002] In actual gear hobbing, different batches of gears have different basic parameters and different processing requirements, so the processing parameters must be adjusted. In the same batch of gear processing, the basic parameters of the gears are the same, and the processing requirements are the same. However, as the processing progresses, various conditions such as hob micro-wear and thermal deformation will occur, and adjustments are also required. At present, no matter whether the process parameter decision is made manually by querying the manual or through software, there are many parameters and adjustment is troublesome. Most of the process personnel do repetitive work, and few can achieve self-learning adjustment of process parameters. The adjustment is inefficient, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N3/02
Inventor 阎春平曹卫东肖雨亮万露钟健
Owner CHONGQING UNIV
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