Dynamic Simulation And Parametric Analysis Of Dynamical Vibration Absorption Boring Bar For Deep-Hole Processing

With the development of metal machining industry and the increasingly fierce market competition, the higher demand for machining quality and efficiency is put forward. The size and shape of the boring bar are restricted because of the special machining condition in the deep-hole processing. This produces the low stiffness of the boring bar which will become lower especially with the big length-diameter ratio of the bar. The machining quality will be badly affected and the machining can not be on the rails due to the lower stiffness. How to reduce the vibration in the boring processing has become an urgent problem.The dynamical equation of boring bar system must be build up for studying the cutting processing of the boring bar. But an accurate dynamical equation can not be built with the traditional method. The appearance of virtual prototype technology offers a way to solve the problem. The core of the virtual prototype technology is on the realization of modeling theories and technology, mechanical system dynamics, finite element theory and control theory, etc. The finite element analysis and mechanical system simulation, which have the same solution foundation of systematic dynamics, combine to achieve accurate simulating analysis of coupling motive between the rigid and flexible. By using virtual prototype technology, we can realize the automatically building and accurately solving of the mechanism system dynamical equation, predict and optimize the system dynamics performance in the course of studying. The improvement of product properties, construction period and expense reduction are achieved.Reference of the foreign advanced manufacture technology of boring bar is used in this article. We adopt a boring bar with dynamical vibration absorption system in it to increase the stiffness of the boring bar, design its structure, set up...