⑴设计的冲压件必须满足产品使用和技术性能，并能便于组装及修配。

⑵设计的冲压件必须有利于提高金属材料的利用率，减少材料的品种和规格，尽可能降低材料的消耗。在允许的情况下采用价格低廉的材料，尽可能使零件做到无废料及少废料冲裁。

⑶设计的冲压件必须形状简单，结构合理，以有利于简化模具结构、简化工序数量，即用少、简单的冲压工序完成整个零件的加工，减少再用其他方法加工，并有利于冲压操作，便于组织实现机械化与自动化生产，以高劳动生产率。

检查、核对模具和冲压机床。在安装模具前，要确认冲压机床为冲压工艺的型号，并检查模具的尺寸、工作要求是否与冲压机床的技术参数（装模高度、滑块行程等）相匹配，冲压机床的状态足否良好。

Check and check die and stamping machine. Before installing the mould, it is necessary to confirm that the stamping machine is the designated type of the stamping process, and check the size of the die and the work requirements to match the technical parameters of the designated stamping machine (the height of the die, the slider stroke, etc.), and the state of the stamping machine is good or not.

清除冲压机床滑块底面、工作台面（或垫板平面）以及模具的上、下模座平面内的任何杂物或异物。手工扳动冲压机床飞轮（或操纵点动按钮），调整上滑块到上死点位置，并转动调节螺杆，将连杆长度调到短（即闭合高度大）。

Remove any material or foreign object on the bottom of the stamping machine slide, working table (or pad plane), and the upper and lower die base of the mold. Manually pull the stamping machine flywheel (or point moving button), adjust the upper slider to the upper dead point, and rotate the adjusting screw, the length of the connecting rod to the shortest (i. e. the maximum height of the closed height).