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插装式液压控制阀在高压、大流量的液压系统中得到了广泛的应用。但是,插装式液压阀阀体的安装块上包含有元件通油孔、流道孔、工艺孔和螺钉孔等,数量众多,孔与孔之间的关系比较复杂。简单的液压系统,阀体安装块上一般有20～30个孔;而较复杂的液压系统,阀体安装块上可达上百个孔之多。这些孔分布在一个六面体的六个面上,纵横交错,构成一个复杂的空间孔系。如何在设计时保证这些孔之间满足应有的通断相互关系,一直是设计人员感到比较困难的问题。往往直到安装块加工的最后工序——钻孔时才发现问题,应该相互沟通的孔没有通,而不该通的孔却钻通了。这时候采取补救措施更改设计,不但困难较大拖
Cartridge hydraulic control valve in the high pressure, high flow hydraulic system has been widely used. However, the mounting block of the plug-in type hydraulic valve body contains a large number of components such as through holes, runner holes, process holes and screw holes, and the relationship between holes and holes is complicated. Simple hydraulic system, the valve body mounting block generally has 20 to 30 holes; and more complex hydraulic system, the valve body mounting block up to hundreds of holes as much. These holes are distributed in a hexahedron of six planes, criss-crossing to form a complex space pore system. How to ensure that these holes meet the proper continuity between the holes at design time has always been a problem that designers find more difficult. Often it is not until the last step in the process of installing the block that the hole is found that there is a problem with the hole which should be communicated with, but with the hole which should not be drilled. This time to take remedial measures to change the design, not only difficult to drag larger