| As the most important part of diesel engine parts,the packaging process will directly affect the subsequent sales,transportation and use of the product.At present,most of the marine diesel engine manufacturers in the market still adopt the packaging method of laminating,breaking and turning cylinder head manually,the defects of this operation method are mainly reflected in the high labour intensity of workers,poor tightness of packaging and low productivity.In order to ensure the quality of the cylinder head packaging and improve the packaging speed,this paper designs an automated packaging platform for a type of marine diesel engine cylinder head,which significantly reduces the degree of manual intervention in the packaging process and effectively improves the production capacity of the enterprise.Combining the structural design,simulation analysis and experiments of this packaging station,the main research of this paper is as follows:(1)Through searching domestic and international literature and technical information of enterprises,we understand the current mainstream film packaging methods.Considering the functions of the packaging station in this paper and the actual production environment,the workflow of the station was determined and the advantages and disadvantages of the different movement solutions of the devices were compared and analysed with regard to the technical actions to be completed.Through calculations and checks,suitable standard parts and standard equipment were selected,and the packaging station was modelled and assembled using 3D modelling software.(2)Using finite element analysis software to carry out static simulation analysis of the main stressed components in the packing station,and based on the finite element analysis results,determine whether there are parts in the packing station that do not meet the material strength and stiffness requirements.At the same time,in order to reduce the overall quality and manufacturing cost of the packaging station,the multi-objective drive optimisation design module in the FEA software is used to optimise the topology design of the platform flange,fixed base and palm robot,and to optimise the parameters of the base support table,under the premise of meeting the stiffness and strength.(3)In order to better analyse the working process of the packaging station,the RecurDyn multi-body dynamics software was used to simulate the dynamics of the two flip processes of the cylinder head and the motion of the robotic arm device respectively,and according to the simulation results,the data generated during the rotation and linear motion of the robotic arm device were studied and analysed.A flexible body model of BOPP plastic film is established,and by analysing the results of the rigid-flexible coupling kinetic simulation of the cylinder head winding and packaging process,a preliminary judgement is made that the values of the dynamic characteristics generated by the film are within a reasonable range of variation.A plastic film tensile strength experimental platform was built to obtain the correspondence between the tensile force and the deformation of the film in the actual use process.Based on the experimental results to verify the correctness of the film kinematic simulation analysis,to provide a theoretical reference and basis for the realisation of the equipment in production and use. |