Structure Design And Finite Element Analysis Of Grinding Robot

At present,most enterprises engaged in processing and manufacturing are facing huge industrial upgrading pressure.Various industries have higher requirements for the processing quality of mechanical products.For the grinding processing of casting products,manual grinding has great limitations relative to automated production Sex.Relying on the manual grinding process of casting products is not only inefficient,but also the quality standard of each product is difficult to unify.Therefore,automatic polishing technology is gradually becoming a research field.For parts with complex surface shapes,the use of robots for automatic grinding has its own advantages,and this technology has gradually become a research hotspot of many researchers.The thesis starts from the production practice of the enterprise and combines relevant domestic and foreign data to carry out the design and analysis of the grinding robot to improve the efficiency of casting grinding.The main research contents of the paper are as follows:According to the development status of grinding robot technology at home and abroad,starting from the actual production and processing needs of the enterprise,according to the technical parameters and motion requirements of the grinding robot,two overall design schemes for the grinding robot are given,and the two schemes are analyzed and studied.The optimal solution is determined.The design of the polishing robot was also completed using 3D modeling software.Using finite element analysis software,the main structure of the designed grinding robot was statically and dynamically analyzed and optimized.The static analysis results prove that the stiffness and strength of the grinding robot meet the requirements;the modal analysis of the rotary table and the three-axis module is carried out to determine the critical speed of the grinding robot motor;according to the modal solution results,the harmonic response of the rotary table is carried out The weak points of the turntable structure are analyzed;the parameterized model of the turntable structure is modeled,and the turntable structure is optimized by the response surface optimization method,so that the natural frequency of the optimized turntable is far away from the excitation frequency,and the peak value of the maximum harmonic response decreases;Also completed the installation and debugging of the grinding robot prototype,and the accuracy of the grinding robot was measured using relevant instruments.The measurement results show that the above simulation experiment analysis results are accurate and the overall design plan is feasible.