Dynamic And Static Analysis And Structure Optimization Of Automobile Engine Cylinder Head Cleaning Manipulator

With the sustaining improvement of the degree of industrial automation, the application of flexible production line is more and more extensive. Manipulator gradually increased in the casting line and other industrial fields of application, the manipulator not only improve the work efficiency, reduce manpower, saves the cost, but also improve the positioning accuracy and work reliability.In the paper, it takes the automotive engine cylinder head cleaning manipulator as the research object, which designed and developed by Jinan synutra Mechanical engineering Co.ltd., in comprehensive of application theory research, virtual prototyping technology, and the finite element analysis technique, study the static and dynamic performance of the manipulator, the purpose is to improve the stability of the equipment. This paper has mainly done the research as below:(1) Use the software-Solidworks to establish the parts and the whole machine 3D model of the automobile engine cylinder head cleaning manipulator, and analyze the composition and functions of each components, determine the manipulator motion way, seeking solution to calculate the value of speed and acceleration of the moving mechanism in the X direction and Z direction.(2) Based on dynamics analysis software ADAMS tools, established the virtual prototype model of the manipulator, according to the actual motion characteristic, simulation analysised the motion mechanism in X direction, Z direction output the velocity and acceleration curves, verified the accuracy of the calculation. The X direction, Z direction motion mechanism of rack and pinion meshing fore and torque of the simulation analysis, though analysis, rack and pinion meshing have greater impact vibration, make sports equipment stability becomes worse and worse, which to prepare for the static and dynamic analysis.(3) Using the finite element software ANSYS Workbench to establish the finite element model of each part and the whole machine, static analysis the key parts and the whole machine,find out the weak link. And of the machine under the two conditions were fully loaded static analysis, and find out the unstable posture of the structure, and modal analysis manipulator the key structure of the manipulator and the whole machine, By analyzing vibration mode results, find out the poor stiffness components of the manipulator, pointed out the direction for the subsequent structure optimization.(4) Columns, beams and manipulator of the machine were structure optimization designed, based on ANSYS Workbench design exploration to achieve product structure optimization, using experimental design to optimize the technique, parametric modeling of the column, and carries on the optimized analysis. Compared the column, beam and manipulator optimization between static and dynamic performance, although the quality of manipulator is increased slightly, but columns, beams and manipulator static dynamic performance have significantly improved, which shows that the optimization achieved good results.In this paper, the analysis of the static and dynamic performance and the structure optimization and improvement of the manipulator, which can provide an effective reference for practical engineering design, and has a certain theoretical and engineering practice significance.