一种自锁联动装夹的夹具设计与分析  

Fixture Design with Function of Self-lock and Linkage and Its Analysis

作　　者：诸葛琰[1,2] 卓雪艳[1] 周晓蓉[1] 夏薇[1] 

机构地区：[1]广西大学机械工程学院,南宁530004 [2]广州军区综合训练基地,广西桂林541000

出　　处：《机械工程师》2015年第1期19-22,共4页Mechanical Engineer

基　　金：广西科技攻关项目(桂科攻1348012-10);广西制造系统与先进制造技术重点实验室项目(13-051-09512)

摘　　要：提出了一种利用机构运动特性和自锁原理设计多位置可联动装夹并自锁的夹具设计思路。并以某空调电机焊接支架的夹具设计为例,在对焊接件装夹定位和焊接要求进行分析的基础上,应用该方法设计了一种三滑块六杆纯机械机构的焊接夹具,以实现四位置约束同步联动装夹、机械自锁。根据夹具机构的运动学原理分析,给出了机构中各元件尺寸的计算方法,应用案例设计验证了该思路的可行性。This paper proposes a design approach of a fixture with the function of linkage, clamping and self-lock at multiple positions by taking advantages of mechanism kinematic characteristics and self-lock mechanism, and analyses this design by taking example of the fixture design of welding stand in the electrical machine inside the air-conditioner. On the basis of the analysis on the clamping position of weldments and welding requirements, this method is applied to design a purely mechanical welding jig with three sliders and six levers to realize the functions of constraints in the four positions, and simultaneous linkage clamping and mechanic self-lock. A calculation method is introduced to calculate the sizes of components in this mechanic structure on the kinematics analysis of the fixture structure, and the design in the case studies proves the feasibility of this approach.

关 键 词：自锁 夹具设计 三维建模分析 

分 类 号：TH11[机械工程—机械设计及理论]