Specially used for the high speed train axle, cargo truck axle shell grinding machines bridge, because it used the grinding wheel to 365 mm width, grinding force big not to say, especially in a fixture, labor and the bridge housing axis at both ends of the head to use two grinding wheel frame and at the same time, more increased machine tool design and manufacturing difficulty, and therefore become a domestic grinding machine industry a years not conquer the technical difficult problem. At present, the domestic manufacturer mostly rely on a few import equipment processing high-speed train axle, cargo truck axle shell bridge.
Shaanxi qinchuan machinery company took the grand high iron, automobile industry in our country great opportunity of development, sends out the technical personnel to the market research, accurate to get market information, a full understanding of domestic and foreign similar machine structure and characteristics and at the same time, careful analysis user drawings, make a relatively complete technical scheme and the layout structure, so in a domestic manufacturer in the bidding action, as GZ126 numerical control machine tool model two-headed axle forming grinding machine.
After signing the contract, the research institute act instantly, arrange business backbone as competent product, make technology ready to plan. The structure of machine tools not only domestic initiative, shaanxi qinchuan machinery in grand company is more first adopted the grinding wheel frame mobile structure, so the technology department very attention, many organizations to discuss technical scheme, serious argument machine tool layout: for double grinding head in the longitudinal direction by the position of the layout structure limits, sure two grinding head of the grinding wheel dynamic balance, away empty process, prevent collision with the United States in the device SBS loading structure, and mounted on the two respectively wheel spindle, avoid to signal when application mutual interference;
From the structure of the grinding wheel spindle system to disassemble the equipment to ensure that the devices using all the reliability; The structure of the grinding wheel balancing cost is higher, and suppliers must negotiate, control of the machine tool design cost; Two grinding wheel frame transverse into to guide adopt international advanced linear guide roller, according to the requirements of users attachment manipulator, would add corresponding interface structure, and meet the requirements of the manipulator up-down material; The machine tool CNC system USES Siemens 840 D, double channel control, realize this two grinding head synchronization request.
Because the contract period tight, machine tool design task is arduous, workload is very big, the company take key-module and purchasing cycle longer issued by the way ahead of related data, for later production and assembly and debugging gain time. In the design process, all participate in the design of the personnel often work overtime to LianZhouZhuan, whenever a new structure the design was finished, immediately organize the related personnel of the argument, improve its shortcomings, improve immediately after the next a design, just like that, finally captured an and a difficulty.
Machine into the assembly after commissioning stage, design personnel in the assembly, the numerical control system parameter design, to each switch of reliability are conducted. Numerical control axis precision, servo system parameter setting and matching, hydraulic system commissioning, the cooling system adjustment etc in strict accordance with the design requirements. Blow grind, fuel assembly, electrical assembly, idle operation, the school action, each working procedure nervous and orderly. Debugging grinding wheel prevent collision function, because in the first time use loading device, prevent collision signal long time no debugging is good, design member and debugging workers out in a full head big sweat, has been working overtime to the early hours of the morning. When overcome many difficulties and finally are faced with the problem is how to successfully using two grinding head at the same time for the two end grinding. It requires the workpiece rotate must meet two grinding head of grinding need, the driver must use in face of axle, machining time and grinding synchronization, is a difficult problem. Everyone not discouraged, take time to learn all the numerical control system material, in order to ensure safety, under the premise of trial and error, finally successfully complete process according to automatically to grinding workpiece success, until the user's pre-acceptance through.
Think back to GZ126 nc double axle forming grinding machine from to talk about the technical agreement and sign contract, to design, processing, assembling, testing and acceptance and packing the whole process, although met all kinds of difficulties, but we work together in the
GZ126 nc double axle molding grinder successful developed, fully proved qinchuan grand team to face any difficulty can be overcome, is a dare to chew the hard stuff "tiger team".
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