随着社会文明的不断进步,人类对地球自然资源和生存环境的保护日益重视。依托技术进步,降低对地球自然资源的消耗,减少对环境的污染,是现代制造技术发展中的一个重要主题。在制造业,目前正被大量使用的板料折弯机等压机类装备大多采用液压传动结构,是石油和电力的消耗大户,同时产生的废弃油液和油泵电机噪音又对环境造成严重污染。 20世纪90年代中期,欧美一些制造商利用现代电力电子技术的发展成果,开始研发机械电子伺服数 With the continuous progress of social civilization, human beings have paid increasing attention to the protection of the earth’s natural resources and living environment. Relying on technological progress, reducing the consumption of the Earth’s natural resources, reducing environmental pollution, is an important topic in the development of modern manufacturing technology. In the manufacturing industry, most of the presses, such as sheet bending machines, currently being used in large quantities, are driven by hydraulic transmission structures, which are major consumers of oil and electricity. At the same time, the generated waste oil and pump motor noise seriously pollute the environment . In the mid-1990s, some European and American manufacturers made use of the development achievements of modern power electronic technology to start researching and developing the number of mechanical electronic servo