Design of Self-centering Riveting Fixture for Coupling and Cross Shaft
A special fixture is designed for the special working condition when the coupling and the cross shaft are riveted,which not only can use the limited space to complete the positioning and clamping,but also can overcome the rive-ting pressure,flexible operation,ensure the quality of riveting press.The characteristics of parts and riveting process is ana-lyzed,according to the requirements of the degree of freedom of the planar linkage mechanism and the composition principle of the mechanism,the feasibility of fixture design is determined,so that it can accurately complete the positioning of the cross shaft bearing,repeated positioning accuracy reaches of 0.1mm,and the self-centering of the outer circle of the work-piece is realised.In addition,the three-dimensional model is built based on Solidworks,the finite element analysis of the sli-der which plays a supporting role is carried out by ANSYS,the simulation results show that the design of the fixture meets the requirements of processing technology is safe and reliable.The practice has proved that it can meet the needs of mass production of parts,and the design concept of the fixture structure is scientific,which has certain reference significance for the design of similar parts special fixture.
fixture designrivetingmechanism freedomself-centeringANSYS finite element analysis
万方数据
维普
