Extrusion casting equipment for clutch pressure plate cover

Abstract

The invention relates to the technical field of machine manufacturing, and discloses extrusion casting equipment for a clutch pressure plate cover. The extrusion casting equipment comprises a machinebase, a driving device is fixedly installed at one end of the top of the machine base, an air cylinder is fixedly installed at the other end of the top of the machine base, a fixed die is fixedly installed in the middle of the top of the machine base, and a movable die is fixedly connected to the side, close to the fixed die, of the driving device; an ejector rod is fixedly connected to the side,close to the movable mold, of the middle of the driving device, a feeding pipe is fixedly connected between the fixed die and the air cylinder, a flow guide hole is formed in the feeding pipe, a piston rod with one end fixedly connected with the air cylinder is movably connected into the flow guide hole in a sleeved manner, and a feeding port is formed in the top of the feeding pipe; and an extrusion hole communicating with the feeding pipe is formed in the fixed die, a pressure limiting adjusting cavity is formed in the position, located at the top of the extrusion hole and close to one sideof a die cavity, of the interior of the fixed die. The die-casting quality and safety are guaranteed through inclined material injection design and internal air outlet hole channel design.

Description

Technical field[0001]The invention relates to the technical field of mechanical manufacturing, in particular to a clutch pressure plate cover squeeze casting equipment.Background technique[0002]The clutch is an important part of the car, and it is related to the safety of driving. Therefore, the clutch needs to be strictly controlled during production and manufacturing. The pressure plate cover of the clutch must be guaranteed to be free from defects during manufacturing. The existing clutch Die-casting is used for manufacturing, that is, the die-casting alloy liquid is used to cast the cavity after the mold is closed. During the process, it is necessary to ensure that the alloy liquid completely fills the clamping cavity. Although the existing die-casting equipment has been widely used, it is still There are some problems:[0003]1. When die-casting, the piston rod is used to push and extrude the alloy liquid into the mold cavity after the mold is closed, but the feed pipe is horizon...

AI Technical Summary

Problems solved by technology

[0003] 1. When performing die-casting, the alloy liquid is pushed and squeezed into the mold cavity after the mold is closed by using the piston rod, but because the feed pipe is designed to be horizontal and has a certain length, when pushing the internal alloy liquid, it will The longer liquid level rises to the top at the same time, which will cause poor gas escape effect, resulting in rough surface with bubbles after forming and cooling, and such a pressure plate cover does not meet the requirements for automobile safety. However, there are also certain potential safety hazards. At the same time, the horizontal push of the alloy liquid poured into the feed pipe is not conducive to its fluidity, and it is easy to cause liquid accumulation near the outer end and local forming and solidification;

[0004] 2. After the mold is closed, the air needs to be released during the die-casting process, so there are vent holes on the top of the mold, but the existing vent holes are simply opened. The situation where the alloy liquid is sprayed from the vent hole due to excessive pressure is dangerous to a certain extent. On the other hand, the size of the vent hole is fixed, and the extrusion force in the cavity will cause uneven venting. Stability, which in turn makes the flow of the alloy liquid inside the mold cavity unstable, which will cause the surface of the formed pressure plate cover to be rough and uneven, and the required quality cannot be achieved

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