The Dynamic Characteristic Analysis Of The MB4250-2 Hing-Precision Control Vertical Honing Machine

Honing is a special milling method of finishing the surfaces of workpiece, high-precision honing is safe, economical, reliable, durable, efficient and being widely used in the processing cylinder jacket, oil cylinder, piston pin boss, connecting rod bearing, pump cylinder bore, hydraulic valve bore, bearing hole and bearing etc.The much more development of the milling precision of honing machine,the higher requirment of the machine's working performance,it requires the machine not only has good static characteristic but also has good dynamic characteristic.Therefore,the static and dynamic analysis of honing machine becomes a necessary step in the design of machine.This paper introduces the development status of the reserch of machine dynamic characteristic inside and outside our country.Firstly, this paper set up the equivalent dynamic model of machine conjoint part, analyzing the identify method of the usual equivalent dynamic model of conjoint part, then Masataka Yoshimura method is presented to used in research the dynamic characteristic of actual conjoint faces, taking use of spring-damp element to modeling the conjoint faces, finally get the normal,tangent dynamic characteristic parameter of the conjoint faces. Secondly, establishing the finite element model of honing machine by Pro/E and Ansys, first, taking dynamic characteristic research of the pivotal parts of machine tool, at the base of it and consider the influence of conjoint faces, this paper has make static stress analysis,modal analysis and harmonic analysis of the whole machine tool ,analyzing the mainly weakness parts of the machine and some idea of configuration optimization is presented.Milling fluid could lead to honing pipe's eddy and research the condition how the eddy occurs, at the same time,simulating the movement of grinding fluid during the honing process and analysis the distributing of grinding fluid.Study the heat spot model of the honing process and set up the finite element model of honing workpiece, then make transient multiple load step heat analysis, then gain the result of the temperature distribution of workpiece during the honing process, at the same time, analyzing and comparing the dry milling temperature distribution with wet milling temperature distribution of the workpiece.