目前,由于液压技术的发展,国内、外生产的板料折弯压力机,绝大多数都采用液压传动,而且大部分是用两个油缸,它们分别安装在机架的左、右两侧(安装在中间的也有).由于采用两油缸传动,所以两缸的同步就显得十分重要.关于双缸同步的研究,国外开始得较早,约在1966年瑞士、奥地利、美国、西德等国都已取得了这方面的专利权.由于当时液压元件不如现在先进,所以液压系统等方面也比较落 At present, due to the development of hydraulic technology, the majority of domestic and overseas sheet metal bending presses adopt hydraulic transmission, and most of them use two cylinders which are respectively mounted on the left and right sides of the frame Installed in the middle there) .As a result of the two-cylinder drive, so the two-cylinder synchronization is very important .Study on the twin cylinder synchronization, the foreign started earlier, about 1966 in Switzerland, Austria, the United States, West Germany and other countries are Has made this patent. Since the hydraulic components are not as advanced now, so the hydraulic system, etc. are also more down