| Lithium-ion batteries have gradually replaced nickel-cadmium and nickel-hydrogen batteries as the primary choice for power batteries due to their high energy,small volume,light weight,no secondary pollution,and good discharge performance.The high-speed automatic casing machine for li-ion power battery is a lithium-ion battery production equipment.Its function is to tightly wrap a special PVC or PET film on the surface of the exposed lithium ion battery case,and put an insulating gasket on the positive end of the battery.With the continuous upgrading of the demand for lithium batteries in the market,the requirements of lithium battery equipment will become higher and higher.The development of lithium battery equipment industry must adapt to the changing trend of lithium battery technology and lithium battery industry.In order to meet the high-speed growth of the lithium-ion battery market,this paper takes the high speed automatic casing equipment of lithium ion power battery as the research object.By introducing the parallel working principle of the double station,it can realize the automatic connection production of two batteries at the same time,such as feeding,conveying and rubber hose.Aiming at the design requirements of high-speed automatic casing equipment for lithium-ion power batteries,and combining the automatic casing technology of lithium-ion power batteries,the overall design scheme of high-speed automatic casing equipment for lithium-ion power batteries was drawn up.The equipment is designed as two working mechanisms and five subsystems.According to the sequence of the process,it is divided into automatic feeding system,high-speed automatic casing system,automatic upper gasket system,indexing mechanism,calibration mechanism,hose heat shrinking system and automatic unloading system;According to the overall design scheme,the working principle of each subsystem and mechanism of high-speed automatic casing equipment is analyzed,and the overall structure of high-speed automatic casing equipment for lithium-ion power battery is constructed based on SolidWorks software,focusing on the automatic feeding system.The two key structures of the automatic hose system were designed in detail.Based on the 3D model of the automatic feeding system drawn by SolidWorks software,the U-shaped push block is parametrically simulated to determine the optimal value of the U-shaped push block width is 16 mm.The3D model of the automatic feeding system is imported into the ADAMS software to establish a virtual prototype model,and the kinematics simulation analysis is carried out to verify whether there is interference in the working process of the automatic feeding system,it is verified that the structural designof the automatic feeding system is reasonable.Obtaining the distance curve between the battery axis and the battery holder axis,verifying that the loading is accurate.The structural design of the automatic casing system was carried out,and the virtual prototype model of the high-speed automatic hose system and the main turntable was established through the exchange interface between SolidWorks and ADAMS software.The kinematics simulation analysis is carried out,and the structural design of the automatic rubber hose system is reasonable according to the simulation animation.Based on the above research content,the high-speed automatic casing machine for lithium-ion power battery was developed.Through setting the corresponding parameters on the man-machine interface,the equipment trial run and casing test are carried out to evaluate the performance of the whole machine,and analyze the work efficiency and the casing quality.The test results show that the precision of the high-speed automatic casing equipment for lithium-ion power battery meets the design requirements,and the production efficiency can reache 120 PPM.The motion between the structures does not interfere,indicating that the structural design is reasonable and the simulation results are valid. |
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