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L7220型双溜板拉床是大型高效拉床。它有两个溜板和两个工作台,同时加工两个工件,当一个溜板工作时另一个溜板则返回。原设计的液压系统既复杂而问题也多。其液压原理图如图1所示:
L7220 double slide plate broaching machine is a large and efficient broaching machine. It has two sliders and two workstations, which process two workpieces at the same time. When one slide works, the other slide returns. The original design of the hydraulic system is complicated and the problems are many. The hydraulic diagram shown in Figure 1: