机电工程技术2025，Vol.54Issue(24)：42-48,7.DOI:10.3969/j.issn.1009-9492.2025.24.008
高精度动涡旋盘气动膜片夹具设计与优化
Design and Optimization of High-precision Scroll Disk Diaphragm Fixture
摘要
Abstract
Aiming at the issues of low positioning accuracy and insufficient clamping stability in the machining of moving scroll disks,a high-precision membrane fixture structure for moving scroll disks is proposed based on the principle of pneumatic diaphragms.On the basis of analyzing the structural characteristics and manufacturing processes of moving scroll disks,focus is placed on the structure and clamping positioning mechanism of the high-precision membrane fixture for moving scroll disks.The positioning scheme for moving scroll disks is investigated,the membrane structure and parameters are optimized,and a design process model for piston stroke and base area is established.The tensile stress of the membrane parameters is verified,and experimental validation is conducted on the high precision and clamping stability of the membrane fixture.The results are as follows:(1)Compared with a three-jaw chuck,the high-precision moving scroll disk membrane fixture exhibits higher concentricity accuracy and stability;The maximum concentricity accuracy is 2 μm,the average concentricity accuracy is 2.6 μm,and the standard deviation of the offset is 0.43 μm;(2)The high-precision moving scroll disk membrane fixture has high clamping stability;It can withstand a maximum cutting force of 2 200 N without negative pressure applied,and the minimum cutting force it can withstand reaches 3000 N with negative pressure of 49 N/cm2 is applied.关键词
动涡旋盘/膜片夹具/薄膜夹具/夹具设计/动涡旋盘夹具/动涡旋盘工装Key words
moving scroll disc/diaphragm fixture/thin film fixture/fixture design/moving scroll disc fixture/moving scroll disc tooling分类
矿业与冶金引用本文复制引用
刘显龙,何冰强,贾方,廖威春..高精度动涡旋盘气动膜片夹具设计与优化[J].机电工程技术,2025,54(24):42-48,7.基金项目
科技部"科技助力经济2020"重点专项项目(SQ2020YFF0415625) （SQ2020YFF0415625）
