论文部分内容阅读
金属板在冲模上成形一般需要压料。经常使用弹簧压料。一般说来,弹簧压料适用于年产几千件零件的冲模。如果在年产几十万件零件的冲模上采用弹簧压料,就会由于弹簧损坏而频繁停工;同时弹簧更换困难,需要拆卸模具;另外由于弹簧力易受使用时间的影响,往往要经常调整压料力;这样就不能满足工作要求。还有,如果所需要的压料力很大,而压料板尺寸受到限制、压料面积很小,使用弹簧压料也不能满足工作要求。
Sheet metal forming in the die generally need to press material. Often use the spring pressure material. In general, spring blanking is suitable for punches that produce thousands of parts per year. If spring dies are used on the dies with annual output of hundreds of thousands of parts, they will frequently stop due to the spring damage; at the same time, the springs are difficult to be replaced and need to be disassembled; in addition, the spring force tends to be adjusted frequently due to the use of time Pressing force; this will not meet the job requirements. Also, if the required pressure of a large force, while the pressure plate size is limited, the press material area is small, the use of spring pressure material can not meet the job requirements.