Load-carrying Performance Analysis Of Heavy Load Clamping Device And Cell Structure Variation Design Technology And Its Application

The load-carrying performance of heavy load clamping device directly affects the operating stability and reliability of clamping. Quantitative analysis under various operating conditions and clear load-carrying performance of heavy load clamping device and its influencing factors, the design and application of overload clamping device has the vital significance, at the same time, a new type of high efficiency and energy saving heavy load clamping device for improving the forging manipulator working ability is of great help. The main work and results of this paper were reflected in the following aspects:In the first chapter, the paper expounds the application of the main forms of manipulator and heavy load clamping device, studied the load-carrying performance of heavy load clamping device and the present situation of the structure optimization design, analyzed their shortcomings, and described the research content and framework of this paper.In the second chapter, the load-carrying performance calculation model of lever type heavy load clamping device is established. Analyzed the relationship between transmission ratio of clamping device and the diameter of the forgings, established respectively the clamping efficiency calculation model of the clamping device under two conditions that forgings without an angle and with an angle at any angle through the decomposition method. Analyzed the factors that influence efficiency of jaw clamping, obtain the weighting structural parameters that improving the efficiency of clamping, provided the theoretical support for exploring the load-carrying performance of clamping device under variable scale and dynamic loading condition and improving operation stability of clamping device, provide theoretical basis for the innovative design of the heavy load clamping device.In the third chapter, the heavy load clamping device structure cell variation design technology is proposed, the typical lever type heavy load clamping device as a design prototype. Achieved the purpose of improving the load-carrying performance through multi-level cell change operation structure parameters which affect the load-carrying performance, designed a new kind of heavy load clamping device, the numerical simulation and comparison analysis of the bearing capacity of new type overload clamping device proved the feasibility of the load-carrying performance clamping device.In the fourth chapter, the multi-objective optimization method of heavy load clamping device is studied, the design variables and constraints according to the parameters of the transmission mechanism are made out, and the multi-objective optimization model of transmission mechanism is established. Adopt multi-objective optimization to algorithm, the compare between the optimization results with the results of numerical simulation analysis verified the accuracy of the optimization result.In the fifth chapter, the structural strength of the new heavy load clamping device is verified by using the machine assembly model of simulation analysis, more perfect, more reasonable structure configuration is found by the topology optimization of the structure which making the material allocation more reasonable. the prototypes and the new heavy load clamping device bearing the maximum load rotating were respectively dynamics simulation analyzed, and the process validated accuracy of clamping device modeling by the clamping jaw any position and the efficiency of the design of clamping cell structure variation.