Collaborative Design Of Riveting Equipment For Aluminum Electrolytic Capacitor Cover Plate

With the rapid development of consumer electronic products and the continuous pursuit of yield,the quality requirements of capacitors are also increasing.As the main component of capacitor installation,some consumer electronics manufacturers have increased their requirements for the consistency of pin spacing to 99.98 %.This topic is the R & D project of the capacitor cove r riveting equipment entrusted by the enterprise.The collaborative design method is adopted to carry out the project design.While improving the riveting speed of the aluminum electrolytic capacitor cover,the consistency of the pin spacing is improved.First of all,starting from the structure of the aluminum electrolytic capacitor cover plate and the relevant national standards,sel ect the appropriate pin spacing;the process flow of the existing equipment is studied,and the influence of the existing equipment on the pin spacing is analyzed.According to the process flow and technical requirements of the aluminum electrolytic capacitor cover plate riveting equipment,the functional structure of the equipment is determined.Based on the equipment itself,the influence of the mechanical structure on the needle spacing is analyzed,and the main design components are determined.Secondly,the design tasks are preliminarily divided according to the functional structure,and the fuzzy design structure matrix(FDSM)of the design tasks is established.FDSM is decoupled by the correlation structure tree expression algorithm,and the optimization order of design tasks is obtained.Using G-value to verify it,the tightness of the design task before and after op timization was reduced by 11.94%,and the accuracy and feasibility of the optimization sequence were determined.According to the optimal design sequence,the task division is carried out to make the designer correspond to the design task,and the design proce ss is accelerated on the basis of ensuring the success rate of development.Finally,according to the assigned design tasks,the corresponding structure is designed.The author is responsible for the design of the three parts of the turntable mechanism,the assembly mold and the cam mechanism.The three parts are modeled by Solid Works and assembled with the three-dimensional models of the other design tasks to obtain a complete solution.The actual design cycle is shortened by about11.11%,which verifies the feasibility of collaborative design in this case.The product has been manufactured,assembled,debugged and trial-produced.For the trial-produced capacitor cover plate,the pin spacing is measured by industrial photogrammetry,and the pin spacing consistency is evaluated according to the enterprise design requirements(10±0.1mm)and triple standard deviation(3σ).It is known that the pin spacing consistency meets the design requirements,indicating that the aluminum electrolytic capacitor cover plat e riveting equipment meets the design requirements.However,there are also some shortcomings,such as the stability of the cam during rotation and the way of taking materials from various parts,which can be further improved and optimized in subsequent re search.