Research On Design And Dynamic Performance Of Milling Machine For Ceramic Parts

Zirconium oxide ceramics have been deeply used in medical,electronics,semiconductor,communication terminal equipment and other industries due to their characteristics of wear resistance,acid resistance,insulation,high temperature resistance and oxidation resistance.Therefore,high-speed and efficient processing of ceramic parts has become the key to related development.Zirconium oxide ceramic materials are recognized as hard and brittle materials that are difficult to process,and have low efficiency and easy damage during processing.Therefore,high demands are placed on ceramic processing machines.In this paper,the ceramic removal mechanism and the characteristics of ceramic milling processing are analyzed.The design and mechanical properties of ceramic milling machine tools are studied.The modal parameters are collected by the modal test experiment,and the theoretical analysis is mutually verified to find the weak.In the end,the resin concrete filling structure was used to optimize the dynamic performance of the machine tool,and the theoretical and experimental aspects were compared and verified.This research has targeted the requirements of ceramic processing on machine tool vibration reduction and proposed improvement measures,which has certain practical significance.The main research contents are as follows:(1)Introduces the current status and background of ceramic milling machine tools,expounds and studies the principle,removal mechanism and processing technology of ceramic milling processing.Key parameters such as critical cutting load and critical cutting depth of zirconia ceramics in milling process were calculated.(2)Determine the overall structural plan of the machine tool,and design and select key components such as the machine tool electric spindle and feed system.The solidworks is used to complete the 3D design modeling of the ceramic milling machine tool,and the finite element model of the whole machine is established through the ANSYS interface,and the collaborative simulation is implemented.The static analysis of the beam components of the ceramic milling machine,the modal analysis of the key structural parts,and the dynamic analysis of the multi-machine condition are completed.(3)Establishing an experimental model of the ceramic milling machine inME'ScopeVES analysis software.From the experimental excitation,response acquisition,modal analysis and processing of the three systems of experimental modal test determine the experimental test method,Then the modal test experiment is carried out,and the experimental results are compared with the results of the finite element modal test of the whole machine to determine the weak link of the machine tool structure.(4)According to the results of experiments and simulation analysis,the resin concrete filling and damping scheme is implemented on the structural parts with weak machine tools.And,The vibration damping effect is verified by the harmonic response experiment and dynamic performance analysis method,which proves that this method is simple and practical for enterprises to quickly solve related problems.