KR100808568B1 - Welding machine for nut and metal plate - Google Patents

Welding machine for nut and metal plate Download PDF

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Publication number
KR100808568B1
KR100808568B1 KR1020060134790A KR20060134790A KR100808568B1 KR 100808568 B1 KR100808568 B1 KR 100808568B1 KR 1020060134790 A KR1020060134790 A KR 1020060134790A KR 20060134790 A KR20060134790 A KR 20060134790A KR 100808568 B1 KR100808568 B1 KR 100808568B1
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South Korea
Prior art keywords
nut
upper electrode
metal plate
welding
compressed air
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KR1020060134790A
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Korean (ko)
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한문식
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안국파인텍(주)
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Resistance Welding (AREA)

Abstract

A welding device is provided to remove welding spark and alien substances adhered to an inner screw thread of the nut when welding a nut to a metal plate. In a welding device comprising a lower electrode(10) in which a guide pin is inserted such that the guide pin is inserted into a nut(2) put on a top face of the metal plate through a through-hole of a metal plate(1), and an upper electrode installed oppositely to the lower electrode such that the upper electrode is movable up and down, wherein the nut is welded to the metal plate when the upper electrode contacts the nut by moving the upper electrode in the downward direction, a welding device for welding the nut and the metal plate is characterized in that a compressed air ejecting unit is formed on the upper electrode to eject compressed air into the nut in the vertical downward direction. The compressed air ejecting unit includes an opening formed in the center of a lower end face of the upper electrode, a straight inflow pipe(21) formed along the length direction of the upper electrode from the opening, an inclined inflow pipe(22) slantly connected from the straight inflow pipe, and a compressed air tube(23) laid in the straight inflow pipe and the inclined inflow pipe.

Description

너트와 금속판재를 용접하기 위한 용접장치{welding machine for nut and metal plate}Welding machine for nut and metal plate

도 1은 종래의 금속판재와 너트가 조립된 상태를 나타내는 단면도이다.1 is a cross-sectional view showing a state in which a conventional metal sheet material and a nut are assembled.

도 2는 본 발명의 일실시예를 설명하기 위한 단면도이다.2 is a cross-sectional view for explaining an embodiment of the present invention.

본 발명은 너트가 설치된 금속판재를 형성하기 위하여 너트와 금속부품을 용접하기 위한 용접장치에 관한 것이다. The present invention relates to a welding device for welding a nut and a metal part to form a metal plate member with a nut.

차량과 같은 장치에는 다양한 형태의 금속판재가 사용되고 있으며, 금속판재는 타 금속판재와 결합되거나 금속판재에 차량에 사용되는 부품들이 설치된다. 이와 같은 금속판재에는 타 금속판재나 부품들과 결합이 용이하도록 조립전에 너트를 부착하여 조립시에 공정수의 절약과 조립시간을 대폭 줄이도록 하고 있다.Various types of metal plate materials are used in devices such as vehicles, and the metal plate materials are combined with other metal plate materials or parts used in vehicles are installed on the metal plate materials. The metal plate is attached to a nut prior to assembly so as to be easily combined with other metal plates or components, thereby greatly reducing the number of processes and assembly time during assembly.

도 1은 종래의 금속판재와 너트가 조립된 상태를 나타내는 단면도이다.1 is a cross-sectional view showing a state in which a conventional metal sheet material and a nut are assembled.

금속판재(1)에는 관통공이 형성되어 있으며, 관통공을 중심으로 너트(2)가 안착되게 되며, 너트(2)에는 용접기의 상부전극이 접촉되고, 관통공의 인접부분의 금속판재(1)에는 용접기의 하부전극이 접촉하게 되어 전기가 흐르게 되면, 너트(2) 와 금속판재(1)는 용접 결합되게 된다.A through hole is formed in the metal plate 1, and the nut 2 is seated around the through hole. The upper electrode of the welder is in contact with the nut 2, and the metal plate 1 of the adjacent part of the through hole is contacted. When the lower electrode of the welder is in contact with electricity flows, the nut 2 and the metal plate 1 is welded.

그러나, 이러한 용접과정에서 용접 스파크 및 이물질이 유입되어 너트(2) 내부에 나사산을 불규칙하게 만들고, 타 금속판재나 부품을 볼트로 너트(2)에 결합시에 나사산이 마모되게 되어 결합불량을 초래하게 된다. However, during the welding process, welding sparks and foreign substances are introduced to make the threads irregular in the nut 2, and when the other metal plate or part is bolted to the nut 2, the threads wear out, resulting in a poor coupling. Done.

본 발명은 이러한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 금속판재에 너트를 용접시에 너트의 내부 나사산에 부착되는 용접 스파크 및 이물질을 제거하도록 하는 용접장치를 제공하기 위한 것이다.The present invention is to solve this problem, an object of the present invention is to provide a welding device to remove the welding spark and foreign matter attached to the internal thread of the nut when welding the nut to the metal plate.

상기 목적들을 달성하기 위한 본 발명은 금속판재의 관통공을 통하여 상기 금속판재의 상면에 놓여 있는 너트에 삽입되는 가이드 핀이 설치되는 하부 전극과, 하부 전극과 대향하여 상, 하 이동하도록 설치된 상부 전극을 포함하며, 상기 상부 전극이 하향 이동하여 상기 너트에 접촉시에 상기 너트와 상기 금속판재를 용접하는 용접장치에 있어서: 상기 상부 전극에는 상기 너트의 내부에 수직 하향으로 압축공기를 분사시키는 압축공기 분사수단이 형성되어 있는 것이다.The present invention for achieving the above object is a lower electrode provided with a guide pin is inserted into the nut placed on the upper surface of the metal plate through the through hole of the metal plate, and the upper electrode is installed so as to move up and down facing the lower electrode And a welding device for welding the nut and the metal sheet when the upper electrode moves downward to contact the nut. The upper electrode includes compressed air for spraying compressed air vertically downward into the nut. Injection means are formed.

또한, 본 발명에 있어서 상기 압축공기 분사수단은 상기 상부 전극의 하단면의 중심에 형성된 개구부와, 상기 개구부로부터 상기 상부 전극의 길이방향을 따라서 형성된 직선 유입관, 상기 직선 유입관으로부터 경사지게 연설되는 경사 유입관으로 형성되는 것이 바람직하다.In the present invention, the compressed air injection means is an opening formed in the center of the lower surface of the upper electrode, a straight inlet pipe formed along the longitudinal direction of the upper electrode from the opening, the inclined to be inclined from the straight inlet pipe It is preferably formed as an inlet pipe.

또한, 본 발명에 있어서 상기 경사 유입관에는 공기 압축펌프로부터 압축 공 기를 유입되는 파이프가 매설되는 것이 바람직하다.In addition, in the present invention, it is preferable that a pipe for injecting compressed air from an air compression pump is embedded in the inlet pipe.

이하, 첨부된 도면에 따라서 본 발명의 일실시예를 상세히 설명하기로 한다.Hereinafter, an embodiment of the present invention according to the accompanying drawings will be described in detail.

도 2는 본 발명의 일실시예를 설명하기 위한 단면도이다.2 is a cross-sectional view for explaining an embodiment of the present invention.

하부 전극(10)의 전극 몸체(14)는 스프링(13)에 의하여 중심에 가이드 핀(12)이 설치된 캡(11)이 상, 하 왕복할 수 있도록 공간부가 형성된다. 원통형상의 캡(11)의 중심에는 가이드 핀(12)이 설치되되 가이드 핀(12)의 저면은 캡(11)의 저면과 일치하고, 가이드 핀(12)은 캡(11)의 상면으로부터 돌출된다. 또한 캡(11)의 외주면에는 외향 돌출부가 형성되어 스프링(13)이 압축될 때 외향 돌출부가 전극 몸체(14)의 상면에 접촉하게 되어 스톱퍼 역할을 한다.The electrode body 14 of the lower electrode 10 is formed with a space so that the cap 11 provided with the guide pin 12 at the center by the spring 13 can be reciprocated up and down. Guide pin 12 is installed in the center of the cylindrical cap 11, the bottom of the guide pin 12 coincides with the bottom of the cap 11, the guide pin 12 protrudes from the top surface of the cap 11 . In addition, an outward protrusion is formed on the outer circumferential surface of the cap 11 so that the outward protrusion contacts the upper surface of the electrode body 14 when the spring 13 is compressed to serve as a stopper.

가이드 핀(12)은 금속판재(1)의 관통공을 관통하여, 금속판재(1)의 상면에 놓여있는 너트(2)의 내부에 삽입된다.The guide pin 12 penetrates the through hole of the metal plate 1 and is inserted into the nut 2 lying on the upper surface of the metal plate 1.

이와 같이 구성된 하부 전극(10)과 대향되는 상부에는 상부 전극(20)이 설치되며, 상부 전극(20)은 상, 하 이동하며 용접시에는 너트(2)에 압력을 가하며, 전기가 흘러 금속판재(1)와 너트(2)를 용접하게 된다. 도 2는 상부 전극(20)이 하향 이동하여 너트(2)에 압력을 가하며 용접을 하고 있는 상태이다.The upper electrode 20 is installed on the upper side facing the lower electrode 10 configured as described above, and the upper electrode 20 moves up and down, and applies pressure to the nut 2 during welding, and electricity flows to the metal plate. (1) and the nut (2) to be welded. 2 illustrates a state in which the upper electrode 20 moves downward to apply pressure to the nut 2 and to perform welding.

상부 전극(20)의 중심에는 수직하향으로 압축 공기를 분출시키는 압축 공기 분사수단이 형성되어 있어 용접시에 압축 공기 분사수단으로부터 분사되는 압축공기는 너트(2)의 내부에 발생되는 용접 스파크 및 이물질등을 너트의 외부로 배출되도록 한다.Compressed air injection means for ejecting compressed air in a vertical downward direction is formed at the center of the upper electrode 20, so that compressed air injected from the compressed air injection means during welding is generated inside the nut 2 and sparks Allow the back to drain out of the nut.

이때, 압축공기 분사수단은 하부 전극(10)에도 형성할 수 있으나, 상부 전 극(20)에 형성하는 것이 무게를 갖는 용접 스파크에 잔존물을 너트의 외부로 배출시킬 때 용이하여 너트(2)의 나사산을 보호할 수 있다.At this time, the compressed air injection means may be formed on the lower electrode 10, but it is easy to form on the upper electrode 20 when discharging the residue to the outside of the nut in the welding spark having a weight of the nut (2) Threads can be protected.

압축 공기 분사수단은 상부 전극(20)의 하면 중심에 형성된 개구부와 상기 개구부로부터 상부 전극(20)의 길이방향을 따라서 형성된 직선 유입관(21), 상기 직선 유입관(21)으로부터 경사지게 연설되는 경사 유입관(22)으로 형성되며, 직선유입관(21)과 경사 유입관(22)에는 압축공기 파이프(23)가 매설된다. 압축 공기 파이프(23)의 종단부는 경사 유입관(22)에 위치한다.The compressed air jetting means includes an opening formed at the center of the lower surface of the upper electrode 20 and a straight inlet pipe 21 formed along the longitudinal direction of the upper electrode 20 from the opening and inclined from the straight inlet pipe 21. The inlet pipe 22 is formed, and the compressed air pipe 23 is embedded in the straight inlet pipe 21 and the inclined inlet pipe 22. The end of the compressed air pipe 23 is located in the inclined inlet pipe 22.

상기 목적과 구성을 갖는 본 발명에 따르면, 금속판재와 너트의 용접시에 너트 내부에 상부 전극으로부터 하부 전극방향으로 압축 공기를 분사시킴으로써 너트 내부에 용접 스파크나 이물질에 의한 바리가 잔류되지 않도록 하여 너트와 다른 작업 대상물을 견고히 체결하도록 한다.According to the present invention having the above object and configuration, by welding compressed air in the direction of the upper electrode from the upper electrode to the lower electrode in the nut during welding of the metal plate and the nut so that the bar by the welding spark or foreign matter remains inside the nut And other objects to be securely fastened.

Claims (3)

금속판재의 관통공을 통하여 상기 금속판재의 상면에 놓여 있는 너트에 삽입되는 가이드 핀이 설치되는 하부 전극과, 하부 전극과 대향하여 상, 하 이동하도록 설치된 상부 전극을 포함하며, 상기 상부 전극이 하향 이동하여 상기 너트에 접촉시에 너트와 금속판재를 용접하는 용접장치에 있어서:And a lower electrode provided with a guide pin inserted into a nut placed on an upper surface of the metal sheet through a through hole of the metal sheet, and an upper electrode disposed to move up and down to face the lower electrode. In a welding apparatus for moving and welding the nut and the metal sheet when in contact with the nut: 상기 상부 전극에는 상기 너트의 내부에 수직하향으로 압축공기를 분사시키는 압축공기 분사수단이 형성되어 있는 것을 특징으로 하는 너트와 금속판재를 용접하는 용접장치.The upper electrode is a welding device for welding a nut and a metal plate, characterized in that the compressed air injecting means for injecting compressed air in the vertical downwards inside the nut. 제 1 항에 있어서, 상기 압축공기 분사수단은 상기 상부 전극의 하단면의 중심에 형성된 개구부와, 상기 개구부로부터 상기 상부 전극의 길이방향을 따라서 형성된 직선 유입관, 상기 직선 유입관으로부터 경사지게 연설되는 경사 유입관으로 형성되는 것을 특징으로 하는 너트와 금속판재를 용접하는 용접장치.According to claim 1, wherein the compressed air injection means is an opening formed in the center of the lower surface of the upper electrode, a straight inlet pipe formed along the longitudinal direction of the upper electrode from the opening, inclined to be inclined from the straight inlet pipe Welding device for welding the metal plate with the nut, characterized in that formed in the inlet pipe. 제 2 항에 있어서, 상기 경사 유입관에는 압축 공기가 유입되는 파이프가 매설되는 것을 특징으로 하는 너트와 금속판재를 용접하는 용접장치.The welding device as claimed in claim 2, wherein a pipe through which compressed air is introduced is embedded in the inclined inlet pipe.
KR1020060134790A 2006-12-27 2006-12-27 Welding machine for nut and metal plate KR100808568B1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753075A (en) * 2013-11-26 2014-04-30 四川蓝讯宝迩电子科技有限公司 Welding device for positioning welding nut
KR102482544B1 (en) * 2022-03-29 2022-12-29 (주)일지테크 High-strength projection welding machine with a guide pin that facilitates fume discharge fume
KR102482543B1 (en) * 2022-03-29 2022-12-29 (주)일지테크 High strength projection welding machine with a lower electrode unit that can easily discharge fume
KR20230171179A (en) * 2022-06-13 2023-12-20 (주)일지테크 High-strength projection welding machine with a guide pin that facilitates fume discharge fume
KR20230171181A (en) * 2022-06-13 2023-12-20 (주)일지테크 High strength projection welding machine with a lower electrode unit that can easily discharge fume
KR20240143254A (en) 2023-03-24 2024-10-02 정주영 Welding quality inspection device between base material and nut

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753075A (en) * 2013-11-26 2014-04-30 四川蓝讯宝迩电子科技有限公司 Welding device for positioning welding nut
KR102482544B1 (en) * 2022-03-29 2022-12-29 (주)일지테크 High-strength projection welding machine with a guide pin that facilitates fume discharge fume
KR102482543B1 (en) * 2022-03-29 2022-12-29 (주)일지테크 High strength projection welding machine with a lower electrode unit that can easily discharge fume
KR20230171179A (en) * 2022-06-13 2023-12-20 (주)일지테크 High-strength projection welding machine with a guide pin that facilitates fume discharge fume
KR20230171181A (en) * 2022-06-13 2023-12-20 (주)일지테크 High strength projection welding machine with a lower electrode unit that can easily discharge fume
KR102647602B1 (en) * 2022-06-13 2024-03-14 (주)일지테크 High strength projection welding machine with a lower electrode unit that can easily discharge fume
KR102654157B1 (en) * 2022-06-13 2024-04-03 (주)일지테크 High-strength projection welding machine with a guide pin that facilitates fume discharge fume
KR20240143254A (en) 2023-03-24 2024-10-02 정주영 Welding quality inspection device between base material and nut

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