Die for extruding window arcs on two sides of diaphragm spring

Abstract

The invention discloses a die for extruding window arcs on two sides of a diaphragm spring. The die comprises an upper die plate, a lower die plate, an upper die core, a lower die core, a rubber block, an upper material return plate, a lower material return plate, a guide column and a guide sleeve, wherein the upper die core and the lower die core are oppositely arranged, are basically the same in structure, are both circular-ring-shaped, and are provided with all arc pressure head shapes; a rubber block is arranged between the upper die core and the material return plate; the upper material return plate is fixed on the upper die core, and the upper die core is fixedly connected to the upper die plate; the lower material return plate, the lower mold core and the lower mold plate are mounted in the same manner as the upper material return plate, the upper mold core and the upper mold plate; and the upper die plate and the lower die plate are connected through the guide sleeve and the guide column. The die has the advantages of being simple and stable in die punching, compared with an existing single window arc extrusion die, improving work efficiency by multiple times, guaranteeing that the window arc is uniform and the product quality consistency is good, reducing the labor intensity of workers and reducing the production cost.

Description

technical field [0001] The invention relates to a die for processing a diaphragm spring, in particular to a die for extruding a circular arc of a window on both sides of a diaphragm spring. Background technique [0002] The clutch is an important part of the automobile transmission system. The diaphragm spring is an important pressing element in the clutch. There are many uniformly distributed long radial grooves on the circumferential surface of the inner hole, and a larger oblong groove is made at the root of the groove. Shaped or rectangular window hole, which can pass through the support rivet, this part is called the separation finger; the part from the bottom of the window hole to the outer circumference of the spring is shaped like a bottomless wide-sided dish, and its cross-section is truncated conical, called the disc spring part. [0003] Existing diaphragm springs require multiple processes to complete the process of extruding the arcs of the windows on both side...

AI Technical Summary

Problems solved by technology

[0003] Existing diaphragm springs require multiple processes to complete the process of extruding the arcs of the windows on both sides when extruding the arcs of the windows. It is necessary to extrude the large arcs and then extrude the small arcs. Only one side can be extruded in one process. The arc of the window has many procedures and low processing efficiency, which not only wastes time and energy, but also cannot guarantee the accuracy of the parts, which may easily cause defects such as uneven and unqualified window arcs.

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