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.

Based on complex body parts structure, the characteristics of batch processing and high accuracy requirement, in order to improve the efficiency of its alignment, put forward about the case accessories are the method of study the origin. During the study, in order to type boring and milling machining center for processing platform, build online detecting system for the body parts. By mathematical modeling and knowledge of analytic geometry, the rotary table any position of body parts in machining center is to find the origin, and determine the size of the work-piece origin of coordinates and the deflection angle. Checked by practice, this method is suitable for composite boring and milling machining center mass production of body parts in work, improve the efficiency of the box body parts processing precision and alignment.

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To design a set of force-applying mechanism, simulate the stresses of workbench in vertical milling process and complete dynamic test of performance parameters by controlling the mechanism on the basis of the research of a testing stand of precision preserve of rolling functional components. This paper establishes a mechanical model to simulate the milling stresses of workbench, and makes use of the principle of the force and moment equal to deduce the functional relationships between the force of mechanism applying and the milling force, makes appropriate transformation according to the working principle of force-applying mechanism; adopt the “PC+NC” NC system architecture and use VB complete programming of the testing stand open NC system based on the multiple axis controller PMAC. Operators can achieve the function of testing stand by the established system interface. In the process of the test of performance parameters by testing stand, the force-applying mechanism applies milling force which could ensure test data accuracy and also save energy.

TX1600 boring and milling machining center milling part was studied. The Three-dimensional solid model was established based on Solidworks. Simultaneously, modal analysis was carried out by ANSYS Workbench software, the first six natural frequencies and corresponding modes were acquired. Based on the modal analysis, the harmonic response analysis of milling part was conducted,and the response curves of the three main motion orientation were obtained respectively, the vibration performance of milling part under forces was further explored,and the finite element model was validated. The feasibility of the model to simplify the program was verified by modal and harmonic response analysis. The study provides a good basis in terms of selecting a specific material. The structures and material are optimized. Ultimately, a lot of energy is saved.