韩军, 沈伟东, 赵震尧, 董冰洋, 邵帅, 庞楠楠. 基于装夹布局的环形薄壁零件柔性夹具研究[J]. 制造技术与机床, 2023, (11): 101-106. DOI: 10.19287/j.mtmt.1005-2402.2023.11.015
引用本文: 韩军, 沈伟东, 赵震尧, 董冰洋, 邵帅, 庞楠楠. 基于装夹布局的环形薄壁零件柔性夹具研究[J]. 制造技术与机床, 2023, (11): 101-106. DOI: 10.19287/j.mtmt.1005-2402.2023.11.015
HAN Jun, SHEN Weidong, ZHAO Zhenyao, DONG Bingyang, SHAO Shuai, PANG Nannan. Research on flexible fixture of annular thin-walled parts based on clamping layout[J]. Manufacturing Technology & Machine Tool, 2023, (11): 101-106. DOI: 10.19287/j.mtmt.1005-2402.2023.11.015
Citation: HAN Jun, SHEN Weidong, ZHAO Zhenyao, DONG Bingyang, SHAO Shuai, PANG Nannan. Research on flexible fixture of annular thin-walled parts based on clamping layout[J]. Manufacturing Technology & Machine Tool, 2023, (11): 101-106. DOI: 10.19287/j.mtmt.1005-2402.2023.11.015

基于装夹布局的环形薄壁零件柔性夹具研究

Research on flexible fixture of annular thin-walled parts based on clamping layout

  • 摘要: 薄壁零件在航空航天、电子通信和汽车工业等领域得到广泛应用。影响零件加工变形的因素有装夹方式、切削参数和零件内部残余应力等,可通过选用合适的切削参数和夹具等方式减少零件变形。夹具是影响薄壁零件变形的主要因素之一,但设计和制造缺乏科学理论指导,无法预测性能。针对某环形薄壁零件在装夹时因不合理的装夹方式导致零件装夹变形过大,研发一款能够抑制该零件变形的专用夹具,计算零件的约束力,使用有限元软件仿真分析了不同装夹布局对零件变形的影响;分析专用夹具的工作原理和夹具行程;制定加工工序,进行了实际加工。研究表明:采用专用装夹布局,使零件的最大变形量控制在0.05 mm以内,对零件精度提高具有重要意义。

     

    Abstract: Thin-walled parts are widely used in aerospace, electronic communication, automobile industry and other fields. Factors affecting parts machining deformation are clamping, cutting parameters, parts internal residual stress, can be selected by the appropriate cutting parameters and fixtures to reduce parts deformation. The fixture is one of the main factors affecting the deformation of thin-walled parts, but the design and manufacture lack of scientific theory guidance, which can not predict the performance. Aiming at a ring thin-wall part in the clamping due to the unreasonable clamping way caused the clamping deformation of the part is too large, a special fixture which can restrain the deformation of the part is developed. The binding force of the parts was calculated, and the influence of different clamping layout on the deformation of the parts was simulated by finite element software. The working principle and travel of special fixture are analyzed. The processing procedure was established and the actual processing was carried out. The research shows that the maximum deformation of parts is controlled within 0.05 mm by using special clamping layout, which is of great significance for improving the accuracy of parts.

     

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