Disclosed are a method for manufacturing a filler pipe mounted in a vehicle fuel tank and a mold device for the same. The method for manufacturing the filler pipe mounted in the vehicle fuel tank according to the present invention includes: a forward-direction drawing step of forming a cylinder with a flange unit on the top by processing a metallic plate; a reverse-direction drawing step of pushing a bottom of the cylinder through an internal space limited by a lateral wall to protrude further than the flange; and a pipe unit forming step of drilling the bottom of the cylinder. According to the present invention, the method for manufacturing the filler pipe mounted in the vehicle fuel tank is capable of fundamentally preventing faulty products due to weld defects by integrally forming the filler pipe by press-processing the metallic pipe without using multiple components. In addition, a filler pipe manufacturing process is simplified by omitting processes for manufacturing and assembling the individual components. Thus, productivity can be remarkably improved.

    본 발명은 차량의 연료탱크에 장착되는 필러파이프를 제조하는 방법과 이를 위한 금형장치를 개시한다. 본 발명에 따른 제조방법은, 금속판재를 성형하여 상단에 플랜지부를 구비하는 원통체를 형성하는 순방향 드로잉 단계; 상기 원통체의 바닥을 측벽의 내부를 통해 밀어올려서 상기 플랜지보다 돌출시키는 역방향 드로잉 단계; 상기 원통체의 바닥을 천공하는 파이프부 형성 단계를 포함한다.본 발명에 따르면, 필러파이프를 다수의 부품으로 구성하지 않고 금속판재를 프레스 가공하여 일체로 성형함으로써 용접결함으로 인한 제품불량을 근본적으로 방지할 수 있다. 또한 개별 부품의 제조공정과 조립공정이 생략되므로 필러파이프의 제조공정이 단순화되고 이로 이해 제품 생산성을 크게 향상시킬 수 있다.


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    Title :

    MANUFACTURING METHOD OF FILLER PIPE OF REFILL HOLE OF AUTOMOBILE FUEL TANK AND MOLDING APPARATUS FOR THE SAME


    Additional title:

    자동차용 연료탱크 주유구 필러파이프의 제조방법 및 이를 위한 금형장치


    Contributors:

    Publication date :

    2016-09-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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