Design And Research Of Precision Milling Modular Machine Tool For The V-engine Box’s Open Surface

In the present machining industry, the popularization of combination machine tools is in a large range, because they possess special machine tools’simple structure、 high productivity and automation features, also have some re-adjustment capability, which can improve processing efficiency, reduce manufacturing cycle, provide protection for products come into the market quickly.This paper mainly design a specific modular machine tool for the precision milling of V-engine box’s open surface, discusses the overall design of modular machine tool、the design of fixture and milling cutter the static and modal analysis of side-foundation, etc, requires the modular machine tool carry out accurate positioning、clamping for the workpiece, so as to meet the requirements of precision, meets certain efficiency to adapt the needs of mass production.In the design process, first determines the configuration of modular machine tool based on the characteristics of the workpiece and calculates the relevant process parameters and select the common parts of the modular machine tool, such as milling head, working table, etc. Then calculates the productivity of the modular machine tool, and draws out the "three figure one card". Second, carries out the structural design of fixture and draws out the assembly drawings, then analysis&calculates the clamping force of clamping the workpiece and calculates the thrust of cylinder, then select the appropriate oil cylinder type. And using Pro/Engineer to bulid the three-dimensional model of fixture parts and assembling, then ensure the feasibility of the operation of the fixture.Finally, using ANSYS Workbench to carry out static and modal analysis of the side-foundation, so as to obtain the result of the meeting the requirement of strength and stiffness, on the other hand, knowing that resonance will not occur in the frequency of the milling head’s speed, can ensure the low-speed milling’s machining accuracy. Accordingly, prove that the design of side-foundation meets the requirements.