Design&Finite Element Analysis Of The Four-hole Machining Combination Boring Machine Spindle Box

The headstock is one of the most important components combination boring lathe, for arranging the work spindle of machine tool and transmission parts and the corresponding attachment mechanism. Spindle box directly affects the reliability and accuracy of boring machine.In this paper, taking the design of four hole processing combined boring machine spindle box as the research object, using the3D modeling and finite element analysis method, the design and analysis of its. According to a plurality of spindle milling machine main axle box at the same time in a column hole processing design requirements, specific examples of research and analysis of its structural characteristics (including geometry, boundary conditions and loads and so on), on the four hole combination boring lathe spindle box were designed:(1) the main parameters are first determined,. Foundation for the subsequent CAD/CAE pad;(2) step and method to analyze the application of modeling software for spindle box of parametric modeling, using3D design software SolidWorks to establish the CAD model of the main parts of boring machine spindle box, quality characteristics of each parts were obtained;(3) the main to the study of the main shaft boring bar parts are simplified model, so as to establish an exact finite element model;(4) by using ANSYS software, and according to the component analysis of the actual stress state, the reasonable mesh, applied load, constraint conditions were determined, the stress distribution in the workbench platform. The results show that, in the end of the shaft0cantilever roller bearings on both sides of the shear stress is maximum, is about24.915MPa, meet the design requirements. The stiffness analysis results show, the maximum value appeared in0shaft deformation axis displacement, the maximum of1.8596e-002mm. The specific location of the inside of the box near the machined end. Study4boring rod shaft deformation is knowable, the maximum occurs in the shaft4,6.2586e-003mm, deformation is small, can ensure the machining precision boring, comply with the design intention.Design and calculation method in this paper can greatly reduce the design time, avoid the mistakes in the traditional design process, shorten product design cycle, reduce manufacturing cost, enhance the competitiveness of enterprises, has the reference significance for design of similar box type parts.