| With the development of modern manufacturing industry constantly, the user’s personalized requirements increasingly intense,specialized, special, high tech machine tool more and more get the favour of the user, while the engraving and milling machine is one of the most fiery user demand of CNC machine tool products in recent years. Traditional die-casting die surface is no longer attract consumers eyeball, machining surface as a new focus of development. This kind of products abroad is expensive, therefore, many domestic machine tool manufacturers are committed to develop the product. At present, the domestic production of carving and milling machine exists in the structure of the structure is compact, exercise the issue such as difference of flexibility. Engraving and milling machine is analyzed in the structure of the existing weakness and the combination of vertical machining center and the characteristics of the gantry machining center, develop a new type of gantry engraving and milling machine. This equipment is suitable for processing and computer hard drives, tablet PC, mobile phone shell,’t and MP5, etc all kinds of steel, aluminum, or non-metallic materials.Engraving and milling machine design main carving and milling machine is small in size, flexible motion, the characteristics of high precision of machine tool structure design, carving gantry milling machine machining vibration generated by the fuselage structure to minimize the, cross slide in longmen is flexibility beam movement is stronger, has few mobile quality in the production and processing, therefore we finally choose engraving and milling machine gantry structure as the main structure of the design. This article will be to the gantry DX500J carving and milling machine mechanical structure research. Determination of overall arrangement including machine tools, machine tool driving system selection, calculation and theoretical analysis to feed system structure design, three separate table structure design, give expulsion-typely knife library design and the whole machine structure design.In this paper, based on research DX500J engraving and milling machine, this paper briefly discusses the overall design process design scheme of the machine tool, analysis of layout structure of a variety of engraving and milling machine, a comprehensive analysis of the rigidity of the machine tool developed the overall layout of engraving and milling machine; Transmission system of machine tool in machine tool technology parameters and overall layout scheme has been determined by the theoretical analysis and calculation and selection, Principle analysis of the key components of the machine tool, finally proposed the framework of the whole host of Longmen type engraving and milling machine; Dynamic balance experiments of electric spindle, Pro/E software is used to complete machine three to the feed system structure design, key components of bed, beams, slide, table structure design and machine design; In the use of Pro/E software of key components of the machine tool and machine tool for the overall design and Simulation of structure modeling. According to deformation problem, the key components of structure and function through ANSYS finite element analysis software components are verifiedAt present, the machine has been completed prototype production, after the experiment, comprehensive performance test and sample processing by the three coordinates testing, as well as, it has been approved by the users in international machine tool exhibition. |