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On-line Optimization Method of Cylindrical Grinding Machining Time

A technology of processing time and cylindrical grinding, which is applied to machine tools designed for grinding workpiece rotating surfaces, metal processing equipment, design optimization/simulation, etc., and can solve problems such as low processing efficiency and high processing cost

Active Publication Date: 2018-10-12
UNIV OF SHANGHAI FOR SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome many shortcomings such as low processing efficiency and high processing cost in the existing cylindrical grinding, the present invention proposes an online optimization method for the processing time of each stage of cylindrical grinding, so that the total removal amount is kept constant Realize the reduction of processing time, thereby improving processing efficiency

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  • On-line Optimization Method of Cylindrical Grinding Machining Time

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Embodiment Construction

[0066] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0067] An online optimization method for processing time in the rough grinding stage, semi-finish grinding stage, fine grinding stage and light grinding stage of cylindrical grinding based on acoustic emission signals (Acoustic Emission: AE).

[0068] Taking the total processing time of 70s as an example, the grinding process is divided into rough grinding stage (0 to 20s), semi-fine grinding stage (20s to 40s), fine grinding stage (40s to 55s) and light grinding stage (55s to 70s) four stages. Such as figure 1 Shown, the optimization of the cylindrical plunge type grinding processing time of the present invention, the step comprises:

[0069] 1. Establishment of Root Mean Square (RMS) curves of AE signals at each stage of the grinding process

[0070] Due to the error of the grinding system and the wear of the grinding wheel, there is a difference ...

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Abstract

The invention relates to an online optimization method of cylindrical grinding machining time, comprising a coarse grinding stage, a semi-grinding stage, a fine grinding stage and a polishing stage, and including the steps: 1) establishing the AE signal root mean square value curve of each stage in the grinding process; 2) calculating the actual removal amount of each stage in the grinding process; 3) judging nodes after stabilization of each stage in the grinding process; 4) calculating the redistribution of machining time of each stage in the grinding process. Through the invention, the next stage can be started immediately after stabilization of the semi-grinding stage, the fine grinding stage and the polishing stage, and the machining time is shortened so that the machining efficiency is improved under the condition that the total removal amount is unchanged.

Description

technical field [0001] The invention relates to an optimization algorithm of machining time, in particular to an online optimization algorithm for cylindrical grinding processing time. Background technique [0002] Grinding is the key process of precision machining, and the grinding quality often determines the final machining accuracy of the workpiece. Among them, cylindrical grinding is the main method for precision and ultra-precision machining, and it is a very important machining method for shaft parts, which can obtain very high surface quality and geometric accuracy. At present, in the process of precision machining of cylindrical grinding, the grinding quality and efficiency of the workpiece mainly depend on the technical level of the machine tool operator. In order to improve and improve the process flow of cylindrical grinding, real-time monitoring of the machining process will be carried out. . Usually the processing time of the workpiece is of great significanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B5/04G06F17/50
CPCB24B1/00B24B5/04G06F30/20G06F2119/12
Inventor 姜晨陆葳坪程金义张奥君王旭
Owner UNIV OF SHANGHAI FOR SCI & TECH