Model construction and topology optimization of adaptive rubber trunk contour holding device
;Aiming at the moving operation form of automatic rubber extraction equipment of natural rubber,a kind of holding device which can realize the adaptive envelope holding of rubber trunk was designed.The working principle,composition structure,grasping mode and adaptive envelope grabbing characteristics of the device were described and analyzed,providing basis for optimizing the design of holding device.ANSYS Workbench software was used for finite element analysis,and the results showed that the maximum total shape variable of the holding device was 0.01 m in the actual working condition,which occurred at the front end of the flexible guide rail,and all the shape variables were small and consistent with the actual force of the holding device.The maximum stress was 0.45 MPa,and the stress was concentrated at the connection between the flexible guide rail and the support plate.However,it had a large material redundancy.The topological optimization of the holding device was carried out,and the mass of the optimized structure was reduced from 0.53 kg to 0.39 kg according to the material removal rates of 30％,40％,50％and 70％,respectively.The results showed that the reduction of material redundancy of the holding device could meet the operation requirements under the requirements of ensuring the strength and stiffness.Qualitative and quantitative tests were carried out on the prototype of the holding device,and through the analysis of feedback data,the force situation of the grasping mode was obtained,and the clamping effect was good.
万方数据
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