Production overview and development direction of Shanxi mechanical belt grinding machine Zhang Zhongsheng Datong Metal Structure Factory, Shanxi Datong 037006, the belt is wider and wider, the processing precision has reached and exceeded the grinding wheel grinding machine, and the application range is wider and wider.
Abrasive belt grinders are an old and emerging process for nearly 30 years. Abrasive cloth or sandpaper with sharp sand grain is used to make multi-blade multi-blade continuous speed (2). The abrasive belt grinding technology of the belt grinding machine has been greatly developed. This abrasive belt grinding technology far exceeds the original Some are used only for adding, and polishing the old concept. The utilization of the water machine tool in the belt grinding machine 1 is close to or reaches the same type of machine tool. The utilization of the machine is ahead of the metal cutting machine tool. The application is not applicable to all walks of life, and to almost all village materials. In particular, it is metal or non-gold, and the abrasive belt grinding process, which has not been noticed for a long time, is now entering a new stage of modern development. Muwen introduces the application range of machining accuracy and processing cost of the abrasive belt grinding machine.
1 Application of abrasive belt grinding machine 1.1 Application range 1.1.1 Large-scale flat thick plate Medium-thick plate thin plate, especially heat-resistant and difficult-to-machine materials, such as +rust steel plate, titanium alloy plate, etc. 1.1.2 Mass production of planes such as the electronics industry Printed board transformer silicon steel sheet gear box and so on.
1.1.3 profile processing. Complex profiles of various sizes, especially engine blades. If the grinding wheel with a diameter less than 251 is used for machining, the grinding wheel will wear quickly and the accuracy cannot be ensured, while the abrasive belt grinding machine can work at a stable speed, and the precision of the precision of the roughness is high. 1.1.4 Machining with a grinding wheel When the container is large-sized bar material, the diameter of the grinding wheel should be greater than 125. If the belt grinding machine is used, the efficiency can be at least doubled.
1.1.5 Grinding and polishing the long inner hole with a diameter of more than 25, especially the thin-walled inner hole is most suitable for 1.2 grinding belt grinding force. The precision of the precision belt grinding machine can be guaranteed at 0.005, yang, the 18th factory in Sunstar, USA; 1 the grinding machine with a diameter of 38, the diameter of the cast iron cylinder head of the steam engine, + flatness has been reached The production efficiency of the 13-belt grinding machine is in terms of processing efficiency. Abrasive belt grinding machine is far, in the grinding wheel grinding machine, it is about 4 times the American speed, 1 sink 1 belt surface grinding machine, the power required to cut every cubic inch of metal scrap per minute is only the belt grinding machine of the vertical blood grinding machine. The work words used for the rest of the metal, such as the left and the long power, are almost completely replaced by the work. 1.4 The cost of the high-speed development of the belt grinding machine is that the economic effect is very significant. Japan has carried out a detailed analysis of the production cost of abrasive belt grinding. It is considered that the cost of the grinding wheel grinding machine is higher than that of the abrasive belt grinding machine. The grinding belt grinding machine is lower than the chemical production of the integrated bed, for example, to cut off the cast iron workpiece every cubic inch. For chip yards, the cost of using a belt grinding machine is lower than that of a grinding wheel.
2 Production Overview of Abrasive Belt Grinders Abrasive belt grinding is widely used in countries all over the world, especially in the United States and West Germany. From daily spoons to honeycomb sandwich structures for aerospace appliances, all walks of life are competing.
21 United States and the United States are in the world, the first abrasive belt grinder for the development of abrasive belt grinding machines for processing wood, and then widely used for processing metal. According to the United States survey of metal processing equipment in the United States, in the 1970s, the American belt grinding machine has broken through. 40,000 units. In the 1990s, each grinding machine had at least a belt grinding machine, and every 3 of the polishing machines had a belt polishing machine registered in the United States with up to 53 grinding machines and 1 factory. The famous factories have Hadid company. Hill Ekmi company å°œmfefes 5, etc., the main Shengguang transport belt flat belt grinding machine no heart outside sand belt wearer flat wide belt grinding machine, in the United States, abrasive belt grinding applications in all industries With the continuous improvement of the manufacturing process of the abrasive belt, the strengthening of the machine tool structure, the increase of the machine tool power, and the improvement of the automation degree have increased the metal cutting rate of the machine tool year by year, and the processing precision has been greatly improved, while the processing range and object It has also been expanding ninety-two. West Germany has been grinding sand belts since the 1950s, and all types of belt grinding machines have. Production, tile, Rich. Coburg Factory Hill 1. and Shi Yi Ling Deng 31.61.1 Mountain are famous factories of 12 large machine tools. They also use the experience of producing large machine tools, which are called parts of guide grinding machines, such as static pressure guide track gantry structure. Large-scale vacuum adsorption high-precision workbench, etc., design and manufacture a large number of wide belt surface grinders. 2.3 Japan's Sakamoto self-produced belt grinding machine mainly has Matsushita Electric Machinery Factory Toshiba Machinery Plant, etc., has produced various types of flat belt grinding machines without heart. In the 1980s, Toshiba Machine Works made the 55 1 ultra-small pneumatic belt machine. It is worth noting that it was impossible to use small belts to machine small grooves.
3 Development direction 3.1 Continue to improve production efficiency 3.1.1 Improve grinding speed and large machine tool power For a long time, the abrasive belt working speed of the belt grinding machine stays at 201530, 8 according to the research report of the American Society of Manufacturing Engineering (1) High-speed belt grinding machine In the trial. In the past a longer period. The power of the machine tool ranges from 4.414 7.5 per square inch of abrasive belt to 18.5126 in the 70s. The machine power is now more than 200. In order to improve the gold, the power of the machine will increase by 9.13. Develop wide belt grinding and expand the use of wide belt grinding machines. At present, the maximum width of the belt grinder can grind the plane of the width of 4. According to reports, the research and application of high-energy physics for large-scale ships of aerospace appliances must use a large number of high-precision and high-roughness precision plates to improve the efficiency of sheet metal processing. It is necessary to develop a wide belt grinding mill 3.2 to improve the processing accuracy of West Germany. The factory uses a large number of high-precision conventional grinding machines on the belt grinding machine. In the belt grinding machine of the US Sensland plant, according to the characteristics of the abrasive belt grinding work, the corresponding special components are designed to improve the machining accuracy of the machine tool. However, as far as the belt grinding machine itself is concerned, the manufacturing precision of the belt is improved. The same is very important 3.3 extended belt life to extend the life of the belt to reduce the belt grinding machine plus 1 into the wood, the key 121! Extend the life of the belt for progress, in addition to improving the abrasive binder substrate. In addition, the wear of the abrasive belt is solved by the mechanism of wear of the abrasive belt. The wear of the abrasive belt is mainly the adhesive cover and the blunt wear, especially the sticking phenomenon is the most serious. When the adhesive cover is formed, the abrasive belt cannot continue to be used. Therefore, the United States recently Adding chemical-resistant cloth with anti-adhesive cover in the manufacture of abrasive belts, 3.4 Improving the degree of automation. Multi-head belt grinding belt conveyor belt or rotary table belt grinding machine are all means of automation. As for CNC belt grinding machine, as early as 1973 Started in West Germany, West Germany, 83 people 800 83 people 100, 1 large flat belt grinding machine has also begun to 甩 3.5 to expand the versatility and adaptability of the machine can be multi-head machine tools, the simultaneous processing of blood After grinding the workpiece, the workpiece turns over and grinds the machine below, and the machine tool that is continuously processed and the workpiece is automatically retracted is used for electromechanicalization. The versatile adaptability of the belt grinding machine will progress in the future, making the grinding machine in the industry capable of producing everything.
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