Yi Gang, Deputy General Manager of Technology, Zhongjie Drilling and Boring Machine Factory, Shenyang Machine Tool Co., Ltd.
Characteristics and advantages of Shenyang Machine Tool Aviation Manufacturing Machine Tool
After more than ten years of research, the Jet Drilling and Boring Machine Factory of Shenyang Machine Tool has recently launched a vertical five-axis linkage machining center to meet the needs of aerospace manufacturing. It has solved many problems in the field of aerospace manufacturing of domestic high-end equipment. VMC0656e gantry five-axis Machining centers and their serial products are among the best. At present, it has achieved industrialization, with an annual output of more than 500 units. Several major domestic military manufacturers are its loyal users.
The structural characteristics of our high-speed five-axis machining center: 1 The gantry frame structure is adopted to enhance the rigidity of the machine tool and to make full use of the space of the processing area.
The 2Y axis uses the principle of gravity center drive and uses double screw drive to reduce the vibration during machine operation. The box-in-box structure is adopted to make the whole machine have high rigidity and quick response characteristics. 3 The hexagonal honeycomb ribs are arranged under the column guide rails, which enhances the torsional rigidity of the column, which not only reduces the shrinkage stress during casting, but also greatly improves the rigidity of the machine tool. 4The cutting adopts micro-lubrication to improve the tool life, green and environmental protection, and the cooling effect is remarkable, so it is beneficial to improve the processing precision of the mold and the workpiece.
Due to the advantages of the above structure, our company compares the quality of parts after processing with similar imported machine tool products. The dimensional accuracy and surface roughness of the machined parts are almost the same as those of imported similar machines. The same price machine tool, our machine tool is in the part size. The position tolerance control can obtain a more stable and narrower actual tolerance zone, and the process is more excellent in energy saving and environmental protection.
Set up a research and development team to tackle the aviation manufacturing process
According to the characteristics of complex shape and structure of aviation products, various materials and strict processing precision requirements, our company has set up a research and development team for the processing technology of aerospace manufacturing users, and conducted in-depth research. Based on this, it is proposed for aviation. Manufacturing CNC machine tool equipment design and manufacturing needs.
(1) High-speed, high-efficiency numerical control equipment requirements Thin-walled parts have been widely used in aerospace components due to their light weight, material saving, and compact structure. However, due to the poor rigidity and weak strength of thin-walled parts, they are easily deformed during processing, which makes the shape and position errors of the parts increase, and it is difficult to ensure the processing quality of the parts. The use of high-speed CNC cutting equipment can greatly improve this situation, because the cutting force decreases with the increase of cutting speed; most of the heat generated by cutting is taken away by the chip; in the high-speed cutting range, the excitation frequency of the machine tool is far away from the process system. The natural frequency range and minimized radial cutting forces and thermal deformation during machining.
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