A3 parallel power head test bench, MK8232 CNC crankshaft grinder, XKH800F five-axis linkage machining center, XKH400A five-axis linkage machining center and BV80-150 vertical machining center. Beijing Electromechanical Institute High Technology Co., Ltd. (hereinafter referred to as BMEI) brought 5 high- and mid-range CNC fine machine tools to the 6th China CNC Machine Tool Exhibition.

The person in charge of the BMEI Machine Tool Division said that the A3 parallel power head test bench and the XKH800F five-axis linkage machining center are new products introduced by the Electromechanical Institute this year. “Only users are most aware of the development direction of the industry. We introduce new machine tools and upgrade the old products from customers. Our sales staff, design developers and managers communicate with users through frequent communication and communication. In the shortest possible time, it is reflected in the design and manufacturing process of the machine tool."

Conquering key technologies

The reporter learned that the newly launched A3 parallel power head test bench is a national science and technology support plan project. This product combines the processing characteristics of aerospace large-scale aluminum alloy structural parts, and studies the three-coordinate (1T2R) parallel power head topology structure innovation design and concrete mechanical structure realization technology that can break through foreign intellectual property rights, and builds a large aluminum alloy structure with this power head. The overall layout of the processing unit forms an independent intellectual property right.

The person in charge of the BMEI project said that we are based on independent innovation and breakthroughs in key technologies, timely absorbing foreign advanced experience, and adopting theoretical and practical work in a step-by-step manner to carry out design and development work.

To this end, the BMEI R&D team inspected the development of related fields in foreign countries, and inspected the design schemes of various 1T2R three-degree-of-freedom parallel mechanism mechanical transmission systems, and selected those who could break through the Z3 head intellectual property rights and have practical engineering value. The final proposal. On this basis, the overall layout scheme of the numerical control processing equipment for large structural parts with the selected power head is proposed.

Finally, the key technology of the new three-coordinate parallel power head was overcome.

Five-axis series continues to break through

BMEI is a supplier of high-end machine tools in China, and always adheres to the technical route of independent innovation in the field of CNC machine tools. In recent years, BMEI has always been committed to becoming the technological innovation leader in the domestic machine tool market segmentation, forming a high-end product structure represented by a five-axis linkage machining center - linear motor drive machining center - precision special grinding machine. Among them, the high-end five-axis linkage machining center realizes mass production and mass sales, which is still leading in China's CNC machine tool industry.

At the exhibition, BMEI launched the XKH800F five-axis linkage machining center again. According to reports, the five-axis machine tool equipped with the FANUC system is based on the original XKH800 five-axis linkage blade machining center, and the FANUC system is applied for the first time on the five-axis machine tool. The Z-axis of the center uses a double-screw double motor drive structure. The head frame uses torque motor direct drive technology and pneumatic clamping. Its new chain type tool magazine adopts the propulsion mode to increase the tool change speed and reduce the X-axis tool change stroke.

The reporter learned that BMEI's "fist" XKH400A five-axis linkage machining center has once again "exited" the exhibition. The center is facing the new CNC equipment for high-speed alloy air-jet blade high-speed, high-efficiency and precision machining five-axis linkage blade machining center. The overall layout is in a leading position compared with domestic similar products, filling the gap in the domestic five-axis linkage CNC machining center for high-temperature alloy air-jet blades.

For a long time, the status quo of the machine tool industry has caused China's aviation structural parts CNC machining equipment to rely on foreign imports. BMEI's domestic high-end CNC machine tools with independent intellectual property rights have broken foreign monopoly and technical blockade, and have important strategies for improving China's aviation industry. significance.

The relevant person in charge of BMEI said that in the future, the company will continue to provide five-axis machine tools and precision special grinding machines for the market segments, and transfer to the general processing industry to provide high-quality multi-axis linkage processing equipment for more industries. Develop products for the requirements of specific industries such as auto parts manufacturing, and gradually form serialized and modular CNC machine tools to meet the individual needs of users in various industries.

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