Design And Research Of Five-axis Milling Head Type Gantry Machining Center

Five axis linkage machining technology for 3d surface parts processing, can best cutting tool geometric shape, not only parts surface finish high and machining efficiency greatly, and five axis NC machine tool is an important means of 3d surface processing, auto mould, the aerospace industry, and the important parts of sophisticated processing equipment. Changchun nc machine tool Co. LTD. Based on market needs, organization, the technical force XH2425/5L 5-axis gantry machining center, the content is the important component parts. Based on analysis and 5-axis CNC machine technology.The paper's research combined with the project. On the basis of comprehensive reference of domestic and foreign similar machine design structure and design analysis method, the system of the general layout, the main function of the machine parts design, performance analysis of key technologies, such as structure were studied deeply and systemly. The main research job for the paper as follows:1) First, The totality layout, main technical parameters and precision index was made for the CNC through surveying, analyzing and summarizing the merit and demerit of the domestic and overseas five axis machine. Then , the model selection was done for the principal axis part, milling part, milling head swinging part, NC rotary table, NC system and guiding system, And the three axis straight line feed system was designed and the silk small bridge standard parameter was confirmed through detailed and accurate calculation.2) Using CAD/CAE method for digital design. Using Solidworks for the three-dimensional modeling of the machine main component and for the general assembly, virtual assembly and motion simulation. Using ANSYS for analyzing the machine tools and the key moving parts. On the base of the result, the structure for the key part was improved and the guarantee was provided for the CNC performance, precision and economic index.3) On account of five axis CNC milling main design technology research, the five axis gantry machining center XH2425/5L was developed successfully with independent intellectual property rights of the milling head type.Through tackle key problems research to the five axis CNC, Both the main property parameters and precision index can meet the curve surface process requirement with high speed and precision to the user. The motion emulation is visual and distinctly for the process center and reflect the process working condition truly. The devise layout rationality is tested by analyzing the structure function of key component and whole machine, and the reliable reason is provided to more construction optimal design. The good function of the five axis CNC is proved so that it gets the good reputation by the user. At the same time, through the CNC developed successfully, the precious theory foundation is accumulated for more developing the like product.