Research on Deflection Analysis and Compensation Method of Ram of Boring and Milling Machining Center

Abstract

In this paper, the ram of boring and milling machining center is taken as the research object. A new method that hydraulic pull rods compensation is proposed to solve the problem of deformation compensation of long stroke ram of boring and milling machining center. Firstly, the method of finite element analysis is used to get the laws of ram deformation and the relationship curve between the ram deformation and the stroke of ram. Secondly, the preliminary calculation value of pull rods compensation force is derived based on the theoretical analysis of material mechanics. The relationship curve between compensation force and the stroke of ram is obtained by finite element analysis and polynomial least squares method. Finally, the analyzed results are as follows: the laws of ram deformation distribution is accurately predicted by the used method, the deflection error of the ram is well controlled,and the machining precision is significantly improved.

Topology Optimization and Analysis of the Compound Boring and Milling Machining Center TX1600g Bed Structure

“…TX-1600G complex box precision compound boring and milling machining center is an independently developed product, its technical indicators strictly follow the requirements of China's national defense and military industry for complex box parts, and the product is completed with the support of the national "863 Program", with independent intellectual property rights [6] . The bed of the composite boring and milling machining center is a casting part, the material is HT300, and its mechanical property parameters are shown in Table 1.…”