Hydraulic machine for extruding round corner of diaphragm spring

Abstract

The invention relates to a hydraulic machine for extruding round corners of a diaphragm spring. The hydraulic machine comprises an upper machine frame and a lower machine frame, wherein the upper surface of the lower machine frame is provided with a lower formwork which can move up and down rapidly under the control of an oil cylinder; the lower formwork is provided with a groove; the edge of thegroove is provided with a punch; the right middle position of the groove is provided with a telescopic positioning pin; a cushion block is also arranged in the groove, the height difference between the height of the cushion block and the edge of the groove is the thickness of the diaphragm spring, and the height of the cushion block is lower than the height of the edge of the groove; the lower surface of the upper frame is provided with an upper formwork capable of moving up and down, the bottom surface of the upper formwork is a plane matched with the lower formwork, and the upper formwork can be slowly pressed downwards under the action of a power system and a screw rod; the hydraulic machine also comprises an extrusion stop switch for inducting extrusion completion. According to the invention, through the action of an oil cylinder and a motor, the upper formwork and the lower formwork act sequentially, and are matched in speed, so that the extruded product has good planeness and concentricity, the production efficiency is high.

Description

technical field [0001] The invention relates to the field of automobile clutch production equipment, in particular to a hydraulic press for extruding rounded corners of a diaphragm spring. Background technique [0002] The clutch is an important part directly connected with the engine in the automobile transmission system, and the diaphragm spring is an important part in the clutch assembly. The production process of the diaphragm spring generally includes processes such as punching the center hole, punching and separating the finger groove, and pressing the rounded corners. The big end side of the diaphragm spring needs to squeeze the rounded corners. The stress concentration can effectively prevent the force value of the diaphragm spring from attenuating or breaking. Existing devices for extruding rounded corners of diaphragm springs generally use hydraulic presses, which generally complete the extrusion process quickly through cylinders or oil cylinders. During the rapid...

AI Technical Summary

Problems solved by technology

Existing devices for extruding rounded corners of diaphragm springs generally use hydraulic presses, which generally complete the extrusion process quickly through cylinders or oil cylinders. During the rapid extrusion process, diaphragm springs are prone to cracks. In the case of uneven force, the inside of the diaphragm spring is easy to bow and cause problems such as poor flatness, and the position accuracy of the product is also difficult to control, and the hydraulic press is also relatively easy to damage during the rapid extrusion process.

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