《外文翻译--单螺杆加工机床的布局和结构》由会员分享，可在线阅读，更多相关《外文翻译--单螺杆加工机床的布局和结构（12页珍藏版）》请在金锄头文库上搜索。
1、Single-screw Machine Tool Layout and StructureAbstract Machine is a national symbol of high and low level of manufacturing industry, the core is a CNC system. We are currently not say that the system is the quality of domestic-made CNC machine tools a little better, the use of high-precision ball sc
2、rews, bearings are imported, mainly to buy in Japan, our homegrown ball screw, bearings in precision, there are problems in life.This paper describes four areas from the existing single-screw machine layout and structure, and put out the advantages and disadvantages of the list, because of the compr
3、essor plant single-screw machine tools and machine tool external Security information, the above introduction there is inevitably one-sided and wrong, and are therefore single-screw compressor for the production of reference works. Key Words Machine Spindle Bearing ToolMachine is a national symbol o
4、f high and low level of manufacturing industry, the core is a CNC system. We are currently not say that the system is the quality of domestic-made CNC machine tools a little better, the use of high-precision ball screws, bearings are imported, mainly to buy in Japan, our homegrown ball screw, bearin
5、gs in precision, there are problems in life. Currently the major machine tool plant, purchased 100% of NC system, the manufacturers generally buy a Japanese Fanuc, Mitsubishi systems, accounting for more than 80%, but also Germanys Siemens system, but relatively small. Why is Germanys Siemens system
6、 used by small? Early, the German system is not able to fit our power grid. Our power grid stability is not enough, Siemens electronic servo system, the module easy to burn out. Japan is different, and their system is not a bad burn. Recently, a number of Siemens system improvements, price is still
7、slightly higher. Germany is very great importance to China, so Chinese of their system only recently, unlike Japan, there are Chinese-based version of the long ago.They are introduced in the late 90s Japanese technology development. South Korea should be a little better. It has its own manufacturing
8、, has commercialized the NC system, but imports of machine tools in China in response to our requirements, but also replaced the Japanese system. We trusted their systems. South Korean CNC machine tools are mainly two: Daewoo and Hyundai. Daewoo currently has a joint venture in China. However, their
9、 poor quality machine tools, life is short, the current bad influence in the mainland. In fact, they were better than we made a little. However, our own poor, we can tolerate, Taiwans machine is purchased with U.S. dollars, with the bad, and that the fire larger. Taiwans main plant, several tools ha
10、ve been intended to move their factories to the mainland, most of them in Shanghai. These plants currently in the domestic competition, but also the name of the banner made.On the domestic advanced numerical control machine tools, its main profit is taken away by foreigners. Recently, as Chinas econ
11、omic development, also caused some of the major machine tool manufacturers in the worlds attention in 2000, China set up a joint venture of NC machine tool plant, said production level is very high, known as intelligent, network-based factory, and the world simultaneously. Also this year, a major Ja
12、panese Okuma Machine Tool Plant in Beijing, set up an annual output of 1000 sets CNC machine tools can be a holding company of a well-known German companies are setting up a Shanghai factory. At present, the countries have developed a number of policies to encourage people to use domestic CNC machin
13、e tool, each manufacturer is trying to catch up. the 80% are imported, domestic machine tools to meet needs. Within the next five years, this trend will not change. However, in terms of the present domestic needs, Chinas CNC machine tools now are able to meet the medium and low product orders. First
14、, introduce the layout of machine tools The first is: machine tool rotary tool spindle center and the center distance for the fixed Machine tool rotary tool spindle center and the center distance for the fixed, can not adjust the center distance. Processing of several of the screw diameter on the ce
15、nter distance required several different specifications of the machine. Advantages: simple structure of the machine. Disadvantage: each machine can only process a specification of the screw, when the market on a certain specification requirements when the screw compressor, resulting in a machine, ot
16、her machine idle. The second: the machine tool spindle box for rotary Spindle box that the machine can turn on a machine at the above-mentioned article on the use of the improvements, with the first structure of a machine tool is basically the same. Advantages: the structure of machine tool easy to adapt to a variety of specifications of the processing screw. One disadvantage: after the rotating spindle box
