论文部分内容阅读
电机的定、转子冲片对尺寸精度和毛刺大小要求比较高,加工中必须严格控制影响尺寸和毛刺的因素,冲模间隙就是重要因素之一。 一般电机行业冲裁0.5mm硅钢片的凸凹模间隙,多采用0.04～0.06mm或0.05～0.07mm,即z/t=8％～14％(z是双面间隙,t是材料厚度)。我厂过去也是如此,而且习惯地认为造成毛刺大的主要因素是凸凹模间隙大,因而在模具制造中,尽量把间隙控制在下限。 今年以来,我厂在Y系列电机试制中,对0.5mm硅钢片冲裁间隙的合理值进行了一些试验探讨。情况如下:
Motor stator and rotor punching on the dimensional accuracy and burr size requirements are relatively high, the processing must be strictly controlled the size and glitch factors, die gap is one of the important factors. General motor industry blanking 0.5mm silicon steel punch and die gap, and more to use 0.04 ~ 0.06mm or 0.05 ~ 0.07mm, that z / t = 8% ~ 14% (z is the gap between the two, t is the material thickness). I used to be the same in our factory, and it is customary to think that the main factor that causes large burrs is the large gap between convex and concave molds, so try to keep the gap at the lower limit in mold making. This year, I plant in the Y series motor trial, 0.5mm silicon steel blanking gap reasonable value of some of the experiments discussed. details as following: