曲柄压力机功能设计计算的方法很多,但是,有些计算结果和实际出入较大,有些计算过程又嫌过于繁琐。因此,我们对曲柄压力机的功能问题进行了一些测试,并对现有压力机的功能参数进行了一些统计,力求找出一个既符合实际又比较简便的计算方法。图1为对J12—40压力机进行功能测试时的示波图。测得了冲裁力、电动机功率、飞轮速度、电动机 There are many ways to design and calculate crank press functional design. However, some calculations and actual discrepancies are large, and some calculations are too cumbersome. Therefore, we have carried out some tests on the functional problems of crank presses, and made some statistics on the functional parameters of the existing presses, trying hard to find a calculation method that is both practical and relatively simple. Figure 1 shows the oscillogram of the J12-40 press for functional testing. Measured blanking force, motor power, flywheel speed, motor