High-speed railway stimulated the development of the machine tool industry

The state’s large investment scale and construction scale for the rail transit industry, especially high-speed railways, has stimulated the development of the railway equipment and machine tool industry. China's railway construction and renovation with emphasis on high speed, speed, and heavy load has already entered the "fast track" of development.

The demand for machine tools is huge. According to the product and business division of labor, the demand for machine tools in the rail transit industry can be roughly divided into the following four aspects: First, track processing and high-speed railway pillow processing; followed by the manufacture of locomotives and vehicles; the third is the wheel and vehicle zero The manufacture of parts; the fourth is the daily maintenance and repair of the operation. These processing and manufacturing all urgently require general-purpose CNC cutting machine tools such as machining centers, CNC lathes, etc. They also need special CNC gold-cutting machine tools, such as track plate grinders, rail grinding machines, etc., as well as forming machines such as presses and bending machines. Taking locomotives and vehicles manufacturing as an example, the two large groups of CSR and CNR, which are part of the Ministry of Railways, have spent as much as 5 billion yuan on machine tool procurement in 2009 alone. If the other three requirements are taken into account, the annual amount spent on machine tool purchases by 2012 will reach 7 billion yuan.

The rapid development of China's rail transportation industry and the huge demand for machine tool products have attracted the attention of machine tool companies. Many machine tool companies have made moves to strive for a share in this emerging market. For example, the DMU 125 FD duoBLOCK and DMC 125 FD duoBLOCK of the DMG Group, a well-known German machine tool company, have been successfully applied to the machining of the wheels of the trains of Zhiqi Railway Equipment Co., Ltd. Zhiqi Railway Equipment Co., Ltd. is a joint venture set up by Shanxi Coal Import & Export Group Co., Ltd., Boao Investment Management Group Co., Ltd. and Italy Luqini Railway Products Group. It was established in 2007. The company owns wheel processing line, axle processing line, wheel assembly line and wheel pair inspection line. It is a professional international manufacturer of high-speed railway EMU wheel pairs. Its products cover the speed of 200 to 380km of China High Speed ​​Railway Harmony EMU. The wheel pair of /h, and the wheelset of the 400-500km/h super high-speed test train.

At present, Zhiqi has six DMC milling and milling complexes DMC 125 FD duoBLOCK and one DMU 125 FD duoBLOCK as a production line proficient in wheelset processing. Whether it is a large-scale tool or mold manufacturing, machinery, automobile, model, instrument manufacturing, or aerospace industry, the DMU/CFD milling and machining center will show its capabilities as long as it is a large-scale workpiece. The gantry structure, which is most suitable for machining large workpieces, is used as the machine tool design. It embodies the rigidity of the machine structure to the greatest extent. At the same time, the thermal symmetry structure has a liquid-cooled ball screw drive mechanism and a cooling feed motor in all axes. Guaranteed long-term accuracy.

The application of DMG machine tool in the processing of Zhiqi Moto wheels can complete the machining of turning, drilling, boring and tilting oil holes at a time. The design of the double exchange table is such that the auxiliary clamping time of the workpiece is almost zero. The newly-built projects of the depots under the Ministry of Railways, the maintenance bases for high-speed railways and EMUs, the new locomotives and vehicles for locomotive factories, and the professional railway axle manufacturing companies all have large-scale procurement of high-performance CNC axle grinding machines.

Domestic machine tool companies do not lag behind and accelerate the pace of scientific and technological research and development. Shanghai Machine Tool Works has been implementing the H235 railway special CNC axle grinding machine project since August 2009. In August 2010, the latest generation of CNC axle grinding machines for the H235 railway passed acceptance and delivered to customers, becoming another major highlight of the market expansion.

In the development process of the grinding machine, the technical research and development department first introduced the automatic adjustment mechanism for the axle taper grinding with its own intellectual property in the country. The rotation accuracy is more than 0.005mm. This technology has successfully solved the problem of grinding of the axle seated taper. High-precision control and greatly improved grinding efficiency; the latest automatic measuring device, the excusation configuration of the automatic production line that matches the standard requirements of the Ministry of Railways, the latest high-efficiency grinding device, and the data and informationization for axle grinding With the addition of machine tool control functions, the comprehensive application of these technologies is the first in the world.

The grinder's axle grinding accuracy is 0.002mm, and the efficiency of cylindrical grinding is at least doubled. This product and its technology will be the high-precision, high-efficiency, high-information processing of railway axles, and even the new generation of railways. The high-end construction of the system provides strong support. In a short period of one year, it has obtained orders for more than ten units. Customers include various bureaus and maintenance bases under the Ministry of Railways, CSR and Coach Group, and railway axle professional manufacturing companies, which have been well received by customers.

Danobart Group, one of the most powerful industrial groups in continental Europe, has set up Danobant Railway Systems in order to be able to become an expert in all aspects of the railroad industry, and thus to train bogies, axles and wheels. Provide the best solution.

On October 23rd, 2008, Danobart and Russia’s largest railway freight car production house T. V. S. Z. The company has signed contracts worth more than 50 million euros. This is the largest ever contract in the Spanish machine tool industry, including high-tech train axle design and providing a flexible and fully automated production line. As a world-wide limited (round-wheel processing) specialist company, Danobart Group's solutions can fill the world's vacancies. The most important users are members of the ERWA (European Railway Wheel Association), and the Danobant Group has users in almost all of their members.

The goal of the Danobart Group Railway System Company is not only to provide equipment, but also to serve as a user's technical partner, to provide users with engineering services, throughout the entire planning and assembly process, and subsequent use of the product. Increasing demand for railway wheelsets drives manufacturers to modernize and automate their workshops. The Danobant Group provides all machining operations, from cutting of steel scraps to balance of wheelsets, non-destructive testing and automatic loading systems. . According to different processing needs, it provides users with a great deal of experience to realize the complete processing process. At the same time provide wheel alignment maintenance solutions. In addition, it is also possible to provide wheelset renovations without disassembling the wheelsets from the train. In addition to the wheelset solution, Danobant Railway Systems has also developed a solution for the machining of cast iron bogies (3-piece structure for trucks), a rotary device (B-axis) and special purpose on high-speed horizontal machining centers. Machine tools to process. The complexity of the part shape (brace and frame) makes time saving for automation the most basic requirement. The solution will be based on the need for high productivity. Compared with the competitors, Danobart's solution offers short time and high precision machining results. .