A propeller mold structure

Abstract

The invention provides a propeller molding structure and belongs to the field of molding technology. The propeller molding structure comprises an integral lower mold, upper molds A of which the numberis the same as that of blades, and upper molds B of which the number is the same as that of the blades. The external suction surfaces of the upper molds A are positioned between the leading edge parting surfaces and the following edge parting surfaces of the upper molds A, and are positioned above the pressure surfaces of the lower molds after being matched; and the leading edge parting surfacesof the upper molds A are matched with the leading edge parting surface of the lower mold after being assembled, the following edge parting surfaces of the upper molds A are matched with the followingedge parting surface of the lower mold after being assembled, and the following edge side walls of the upper molds A are perpendicular to the following edge parting surfaces and are matched with the following edge side wall of the pressure surface of the lower mold after being assembled. Partial blade root suction surfaces starting from leading edges in the upper molds B are matched with adjacentpartial blade root suction surfaces starting from following edges after being assembled so as to form internal suction surfaces; and internal leading edge parting surfaces are matched with the leadingedge parting surfaces after being assembled. The propeller molding structure provided by the invention can reduce the modeling difficulty of overlapping areas of blade roots, increase the molding thickness of propeller blade roots, enhance the molding strength of blade roots, as well as reduce the mold assembly difficulty of propeller molding.

Description

technical field [0001] The invention belongs to the field of casting technology and relates to a new propeller casting mold, which is especially suitable for casting parting of propellers with complex shapes. Background technique [0002] As a typical three-dimensional complex surface part, the propeller has a complex blade shape, and the blade shape during casting faces many insurmountable technical difficulties. [0003] The traditional spiral blade shape generally adopts the method of making a real sample wooden model or a smooth shape of a hand-made scraper. For each blade, the pressure surface and the suction surface are respectively molded, and then molded together. At the same time, the surface of the hub also needs to be Using special tooling to realize the shape, this kind of modeling method is cumbersome and the precision is not high. Contents of the invention [0004] In order to overcome the problems of complex operation, cumbersome process and great difficult...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of complex operation, cumbersome process and great difficulty in the current propeller casting molding process, the present invention proposes a new cast propeller mold structure

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