Closing-in and forming stamping die for close over of automobile fuel tank

Abstract

The invention relates to a closing-in and forming stamping die for a close cover of an automobile fuel tank, which has good sealing property of a product. The closing-in and forming stamping die comprises a lower die, an upper die and a movable cone die, wherein the movable cone die is in a ring structure and is positioned between the lower die and the upper die; the lower die comprises a lower die plate on which a lower die cushion and a lower open die are fixedly installed; the lower open die is in a ring structure; the lower die cushion is positioned in the lower open die; the movable cone die and the lower open die are corresponding to each other up and down; the upper die comprises an upper die plate below which a closing-in backing plate is fixedly installed; a forming open die is fixedly installed below the closing-in backing plate; the forming open die, the closing-in backing plate and the movable cone die are corresponding to each other up and down; a connecting cushion cover is installed in the middle of the upper die plate; an air cylinder is fixedly installed on the connecting cushion cover; a conical rod is fixedly installed at the lower end of the piston rod of the air cylinder; a conical head is fixedly installed at the lower end of the conical rod; a die plate flange is installed below the connecting cushion cover; a dovetail die plate is fixedly installed below the die plate flange; and a slide block die plate is arranged on the dovetail die plate.

Description

technical field [0001] The invention relates to a stamping die, in particular to a stamping die for forming the closure of the head cover of an automobile fuel tank. Background technique [0002] For the fuel tank products produced by the current technology, most of the seals of the fuel tank head cover are folded and crimped, and some are closed by rolling. However, the sealing performance of the fuel tank is poor due to the lack of sealing welding process on the head cover. Poor, the product is prone to oil leakage and oil leakage. Contents of the invention [0003] The purpose of the present invention is to provide a stamping die for forming the closure of the head cover of an automobile fuel tank with good product sealing performance. [0004] To achieve the above object, the technical solution adopted in the present invention is: [0005] A stamping die for forming the closure of the head cover of an automobile fuel tank, including a lower die, an upper die and a mo...

AI Technical Summary

Problems solved by technology

[0002] For the fuel tank products produced by the current technology, most of the seals of the fuel tank head cover are folded and crimped, and some are closed by rolling. However, the sealing performance of the fuel tank is relatively poor because the head cover has no sealing welding process. Poor, the product is prone to oil leakage and oil leakage

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