The invention discloses an ejector rod rapid modeling method for a die-
casting mold. The ejector rod rapid modeling method comprises the following steps: constructing a parameterized driven ejector rod and
cutting body model, and dividing the parameterized driven ejector rod and
cutting body model into standard parameters and non-standard parameters by analyzing parameter types, wherein the standardized parameters are assigned by directly reading the parameters in a
database, and the non-standardized parameters establish a relationship with a rear top plate, a mold frame and a mold core model,and the non-standardized parameters are deduced reversely by automatically calculating the distances among the rear top plate, the mold frame and the mold core; and calculating a positioning coordinate
system of the ejector rod and the
cutting body. The ejector rod rapid modeling method has the beneficial effects that when the ejector rod rapid modeling method is adopted, the modeling
workload ofmold designers is greatly reduced. By adopting the ejector rod rapid modeling method provided by the invention, the accuracy of the ejector rod and the cutting body model is ensured, and the checkingwork on the model accuracy is directly omitted, and only the placement point of the ejector rod and the
type selection are required to be checked accurately, so that the research and
development period of the mold is further shortened, and the mold repair cost caused by inaccurate model is reduced.