KR100491923B1 - Automatic spot welding machine - Google Patents
Automatic spot welding machine Download PDFInfo
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- KR100491923B1 KR100491923B1 KR10-2002-0048110A KR20020048110A KR100491923B1 KR 100491923 B1 KR100491923 B1 KR 100491923B1 KR 20020048110 A KR20020048110 A KR 20020048110A KR 100491923 B1 KR100491923 B1 KR 100491923B1
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- Prior art keywords
- spot welding
- roller
- spot
- panel
- rotation
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Classifications
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/314—Spot welding guns, e.g. mounted on robots
- B23K11/315—Spot welding guns, e.g. mounted on robots with one electrode moving on a linear path
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Resistance Welding (AREA)
Abstract
본 발명은 차량의 패널을 스폿 용접하는 자동 스폿 용접기에 있어서, 용접될 패널 부분을 따라 회전되는 롤러를 가지는 롤러부와; 상기 롤러 회전수를 검출하는 회전 검출부와; 상기 회전 검출부의 신호에 따라 소정의 연산을 하여 이동거리를 산출하며, 소정의 스폿용접 간격만큼 이동될 때마다 스폿 용접건에 작동신호를 출력하는 제어부와; 상기 롤러부와 함께 프레임에 지지되어 롤러의 회전에 따라 이동되며, 상기 제어부의 작동신호에 의해 작동하는 스폿 용접건을; 포함하여, 종래와 같이 수동으로 스폿 용접위치를 마킹할 필요가 없고 스폿 용접 간격이 균일해지는 효과가 있다.The present invention provides an automatic spot welder for spot welding a panel of a vehicle, comprising: a roller portion having a roller rotated along a portion of a panel to be welded; A rotation detector for detecting the roller rotation speed; A control unit for calculating a movement distance by performing a predetermined operation according to the signal of the rotation detecting unit, and outputting an operation signal to a spot welding gun whenever it is moved by a predetermined spot welding interval; A spot welding gun supported by the frame together with the roller part and moved according to the rotation of the roller, the spot welding gun being operated by the operation signal of the controller; Including, there is no need to manually mark the spot welding position as in the prior art, and there is an effect that the spot welding interval is uniform.
Description
본 발명은 차량의 패널, 예를 들어 차체 패널을 스폿 용접하는 자동 스폿 용접기에 관한 것으로서, 구체적으로는 종래와 같이 수동으로 스폿 용접위치를 마킹할 필요가 없이 스폿 용접 간격이 균일하게 자동으로 용접되는 자동 스폿 용접기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic spot welder for spot welding a panel of a vehicle, for example a vehicle body panel. Specifically, the spot welding interval is automatically and uniformly welded without the need to manually mark the spot welding position as in the prior art. Relates to an automatic spot welder.
일반적으로 스폿 용접은 용접재료를 겹쳐 놓고 주로 수냉되는 용접 팁(TIP)으로 물리고, 용접 팁 사이에 순간적으로 대전류를 흐르게 하면, 용접 팁의 접촉면과 용접 재료인 판과 판의 접촉면 사이에서 전기 저항열이 발생되고, 이때 용접 팁과 판 사이의 열은 용접 팁의 내부 냉각수에 의해서 냉각되고, 판과 판의 접촉면은 용융상태에 도달되고, 가압에 의하여 너깃(nugget)이 형성되어 용접되는 것이다.In general, spot welding is applied by welding tip (TIP) which overlaps welding material and is mainly water-cooled, and when a large current flows instantaneously between welding tips, electric resistance heat between the contact surface of the welding tip and the contact surface between the plate and the welding material In this case, heat between the welding tip and the plate is cooled by the internal cooling water of the welding tip, the contact surface of the plate and the plate reaches a molten state, and a nugget is formed by welding and welded.
종래에는 도1 및 도2에 도시되듯이, 수작업으로 차체 패널에 스폿 용접될 위치가 마킹되고, 그 후에 스폿 용접기가 마킹된 위치로 이동되어 스폿 용접을 하였다. 그러나, 마킹의 위치가 부정확하여 스폿 용접 간격이 불균이 해져, 차체의 패널의 강도, 치수 등의 품질이 저하되고, 일일이 수작업으로 마킹을 하고 스폿 용접하여야 하므로 제작시간이 많이 소요되고 제작비용이 많이 소요되는 문제점이 있었다. Conventionally, as shown in Figs. 1 and 2, the position to be spot welded to the body panel by hand is marked, and then the spot welder is moved to the marked position to perform spot welding. However, the spots are inaccurate due to inaccurate spot welding, resulting in poor quality and strength of the panel of the vehicle body, and manual marking and spot welding. There was a problem.
상기한 종래의 문제점 등을 해결하기 위해 안출된 것으로서, 본 발명의 목적은 종래와 같이 수동으로 스폿 용접위치를 마킹할 필요가 없이 스폿 용접 간격이 균일하게 자동으로 용접되는 자동 스폿 용접기를 제공하는 것이다.The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an automatic spot welder in which the spot welding interval is automatically welded uniformly without the need to manually mark the spot welding position as in the prior art. .
또한, 본 발명의 목적은 제작비용이 감소되며 차체 파넬의 용접 접합 강도가 향상되는 자동 스폿 용접기를 제공하는 것이다.It is also an object of the present invention to provide an automatic spot welder with reduced manufacturing costs and improved weld joint strength of the vehicle panel.
상기와 같은 본 발명의 목적을 달성하도록, 본 발명은 차량의 패널을 스폿 용접하는 자동 스폿 용접기에 있어서, 용접될 패널 부분을 따라 회전되는 롤러를 가지는 롤러부와; 상기 롤러 회전수를 검출하는 회전 검출부와; 상기 회전 검출부의 신호에 따라 소정의 연산을 하여 이동거리를 산출하며, 소정의 스폿용접 간격만큼 이동될 때마다 스폿 용접건에 작동신호를 출력하는 제어부와; 상기 롤러부와 함께 프레임에 지지되어 롤러의 회전에 따라 이동되며, 상기 제어부의 작동신호에 의해 작동하는 스폿 용접건을; 포함한다.In order to achieve the object of the present invention as described above, the present invention provides an automatic spot welder for spot welding a panel of a vehicle, comprising: a roller portion having a roller which is rotated along a portion of the panel to be welded; A rotation detector for detecting the roller rotation speed; A control unit for calculating a movement distance by performing a predetermined operation according to the signal of the rotation detecting unit, and outputting an operation signal to a spot welding gun whenever it is moved by a predetermined spot welding interval; A spot welding gun supported by the frame together with the roller part and moved according to the rotation of the roller, the spot welding gun being operated by the operation signal of the controller; Include.
이하, 본 발명의 바람직한 실시예에 대하여 첨부된 도면을 참조하며 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described.
도2 및 도3에 도시되듯이 본 발명은 차량의 패널, 예들 들어 상하부의 차체 패널을 균일한 간격으로 스폿 용접하는데 적합한 자동 스폿 용접기이다.As shown in Figs. 2 and 3, the present invention is an automatic spot welder suitable for spot welding the panel of a vehicle, for example, upper and lower body panels at uniform intervals.
도4에 도시되듯이 본 발명에 의한 자동 스폿 용접기(10)는 종래의 이동식 스폿 용접건과 같은 스폿 용접건(50), 롤러부(30), 제어부(40)와 이들을 일체로 수용하여 지지하는 프레임(20)으로 이루어진다.As shown in FIG. 4, the automatic spot welder 10 according to the present invention includes a spot welding gun 50, a roller part 30, a controller 40, and the like, which are integrally housed and supported, such as a conventional mobile spot welding gun. It consists of a frame 20.
스폿 용접건(50)에는 상하부 용접 팁(51, 52)이 롤러부(30)의 후방에서 각각 차체 패널(60)의 상하부에 각각 위치되어, 차체 패널(60)을 스폿 용접한다. 스폿 용접건(50)은 일반적인 이동식 스폿 용접건 형태가 바람직하며, 경우에 따라서는 상부, 하부 한쪽에 위치하여 스폿 용접하는 스폿 용접건일 수도 있다.In the spot welding gun 50, upper and lower welding tips 51 and 52 are respectively positioned at the upper and lower portions of the vehicle body panel 60 at the rear of the roller portion 30, respectively, to spot weld the vehicle body panel 60. The spot welding gun 50 is preferably in the form of a general movable spot welding gun. In some cases, the spot welding gun 50 may be a spot welding gun positioned at one of the upper and lower portions.
롤러부(30)는 상하부 롤러(31, 32)로 형성되며 프레임(20)의 다리부(21)에 각각 지지되어, 용접시에 각각 차체 패널(60)의 상하부에 위치되고 차체 패널(60)과 맞물린다. 상기 상하부 롤러(31, 32)는 프레임(20)을 작업자가 이동시킴에 따라 수동으로 회전되거나, 별도의 전기모터(도시안됨)와 연결되어 자동으로 회전된다. 그리고, 회전 검출부(33)는 변위센서의 일종이며, 상하부 롤러(31, 32)의 회전수 또는 상부 롤러(31)의 회전수를 측정한다. 회전 검출부(33)는 종래의 차량 주행거리계에 이용되는 센서나 ABS(anti-lock break system)의 차륜속도센서가 응용될 수 있다.The roller portion 30 is formed by upper and lower rollers 31 and 32 and is supported by the leg portions 21 of the frame 20, respectively, and is positioned at the upper and lower portions of the vehicle body panel 60 at the time of welding, and the vehicle body panel 60 Meshes with The upper and lower rollers 31 and 32 are manually rotated as the worker moves the frame 20, or are automatically connected to a separate electric motor (not shown). The rotation detector 33 is a kind of displacement sensor, and measures the rotation speed of the upper and lower rollers 31 and 32 or the rotation speed of the upper roller 31. The rotation detector 33 may be a sensor used in a conventional vehicle odometer or a wheel speed sensor of an anti-lock break system (ABS).
제어부(40)는 일종의 마이크로컴퓨터로 구성되며 회전 검출부(33)의 신호가 입력됨에 따라 소정의 연산을 하여 자동 스폿 용접기(10)의 이동거리를 산출한다. 그리고, 소정의 스폿용접 간격만큼 이동될 때마다 작동신호를 발생시키며, 이 작동신호는 전선(41)을 통해 스폿 용접건(50)에 전달된다. 이때, 스폿 용접건(50)은 스폿 용접을 한다. 입력부(42)가 제어부(40)와 연결되어, 스폿 용접의 간격이 설정 또는 변경된다. 그리고 상기 제어부(40)와 연결된 표시부(43)는 LED, LCD 또는 CRT 모니터로 이루어지며, 설정된 스폿 용접의 간격을 표시한다.The control unit 40 is composed of a kind of microcomputer and calculates a moving distance of the automatic spot welding machine 10 by performing a predetermined operation as a signal of the rotation detecting unit 33 is input. Then, an operation signal is generated each time it is moved by a predetermined spot welding interval, and the operation signal is transmitted to the spot welding gun 50 through the wire 41. At this time, the spot welding gun 50 performs spot welding. The input unit 42 is connected to the control unit 40 so that the interval of spot welding is set or changed. In addition, the display unit 43 connected to the control unit 40 includes an LED, an LCD, or a CRT monitor, and displays the set spot welding interval.
프레임(20)은 롤러부(30), 제어부(40)와 스폿 용접건(50)을 수용하는 다양한 형태일 수 있다. 예를 들어, 프레임의 다리부(21)는 상하로 각각 위치하여 상하부 롤러(31, 32)가 각각 고정되며 프레임의 평판부(22)도 상하로 각각 위치하여 스폿 용접 팁(51, 52)이 내측으로 각각 고정된다. 그리고 상부 프레임 평판부(22)의 윗면에는 제어부(40), 입력부(42) 및 표시부(43)가 고정된다. 프레임(20)은 상하부로 분할되어 도시되어 있지만, 도시되지 않은 다른 프레임(20) 부분에 의해 상하부가 서로 연결되어 일체로 형성된다. 롤러(31, 32)는 용접 팁(51, 52)의 전후에 위치되거나 상하부 한쪽에 위치되는 등 다양하게 변경될 수 있다.The frame 20 may have various shapes to accommodate the roller unit 30, the controller 40, and the spot welding gun 50. For example, the leg portions 21 of the frame are positioned up and down, respectively, and the upper and lower rollers 31 and 32 are fixed, respectively, and the flat plate portions 22 of the frame are also positioned up and down, respectively, so that the spot welding tips 51 and 52 are positioned. Each is fixed inward. The control unit 40, the input unit 42, and the display unit 43 are fixed to the upper surface of the upper frame plate unit 22. Although the frame 20 is divided into upper and lower parts, the upper and lower parts are connected to each other by a portion of the frame 20 which is not shown, and are integrally formed. The rollers 31 and 32 may be variously changed, such as being positioned before and after the welding tips 51 and 52 or located at one side of the upper and lower parts.
이하, 상기와 같이 구성되는 본 발명의 작용에 대하여 설명한다.Hereinafter, the effect | action of this invention comprised as mentioned above is demonstrated.
먼저, 자동 스폿용접기(10)가 차체 패널(60)에 위치되어 차체 패널(60)과 롤러(31, 32)가 맞물린다. 그리고, 입력부(42)를 통해 스폿 용접간격, 예를 들어 20mm가 입력된다. 초기 위치에서 용접 팁(51, 52)에 의해 스폿 용접된다. 그런 후에, 롤러부의 롤러(31, 32)가 작업자에 프레임(20)을 미는 힘에 의해 또는 전기모터에 의해 회전되면서 자동 스폿용접기(10)가 이동된다. 이때에, 회전 검출부(33)에 의해 롤러(31)의 회전수가 계측되고, 이 회전수는 제어부(40)에 전달된다. 제어부(40)는 이에 따라 이동거리를 산출하며, 설정된 스폿 용접간격 20mm만큼 자동 스폿용접기(10)가 이동된 경우에는 작동신호를 출력한다. 스폿 용접건(50)이 이 작동신호에 따라 자동으로 스폿용접을 하여, 한 스폿용접의 사이클을 완성한다. 이와 같이 사이클이 반복되어, 20mm 등간격의 스폿용접이 자동으로 행해진다.First, the automatic spot welder 10 is positioned in the vehicle body panel 60 to engage the vehicle body panel 60 with the rollers 31 and 32. Then, the spot welding interval, for example 20 mm, is input through the input unit 42. Spot welding is performed by the welding tips 51 and 52 in the initial position. Then, the automatic spot welder 10 is moved while the rollers 31 and 32 of the roller portion are rotated by an electric motor or by a force pushing the frame 20 to the worker. At this time, the rotation speed of the roller 31 is measured by the rotation detection part 33, and this rotation speed is transmitted to the control part 40. The controller 40 calculates the movement distance accordingly, and outputs an operation signal when the automatic spot welder 10 is moved by the set spot welding interval 20 mm. The spot welding gun 50 performs spot welding automatically in accordance with this operation signal, thereby completing one spot welding cycle. In this way, the cycle is repeated, and spot welding is performed automatically at equal intervals of 20 mm.
상기와 같은 구성을 가지는 본 발명은 종래와 같이 수동으로 스폿 용접위치를 마킹할 필요가 없이 스폿 용접 간격이 균일하게 자동으로 용접되는 효과가 있다. 또한, 본 발명은 간단한 구성으로 자동으로 스폿 용접이 되어, 현장에 손쉽게 적용되며 제작비용이 감소하며 차체 파넬의 용접 접합 강도가 향상되는 효과가 있다. The present invention having the configuration as described above has the effect that the spot welding interval is automatically welded uniformly without the need to manually mark the spot welding position as in the prior art. In addition, the present invention is automatically welded to the spot with a simple configuration, easily applied to the site, the manufacturing cost is reduced and the welding joint strength of the vehicle panel is improved.
도1은 종래의 스폿 용접기에 의해 차체 패널이 용접되는 상태를 개략적으로 도시하는 개략도이다.1 is a schematic diagram schematically showing a state in which a vehicle body panel is welded by a conventional spot welder.
도2는 등간격으로 스폿 용접된 차체 패널을 도시하는 도면이다.Fig. 2 is a diagram showing a vehicle body panel that is spot welded at equal intervals.
도3은 도2의 차체 패널의 일부분을 확대하여 개략적으로 도시한 사시도이다.FIG. 3 is an enlarged perspective view of a portion of the vehicle body panel of FIG. 2. FIG.
도4는 본 발명에 의한 자동 스폿 용접기에 의해 차체 패널이 용접되는 상태를 개략적으로 도시한 개략도이다.4 is a schematic diagram schematically showing a state in which a vehicle body panel is welded by an automatic spot welder according to the present invention.
*도면의 주요기호에 대한 간략한 설명** Brief description of the major symbols in the drawings *
10...자동 스폿 용접기, 11...종래의 스폿 용접기, 12...차체 패널, 13...용접 팁,10 ... automatic spot welder, 11 ... conventional spot welder, 12 ... body panel, 13 ... welding tip,
20...프레임, 21...다리부, 22...평판부,20 frames, 21 legs, 22 flats,
30...롤러부, 31...상부 롤러, 32...하부 롤러, 33...회전 검출부,30 roller part, 31 upper roller, 32 lower roller, 33 rotation detector,
40...제어부, 41...전선, 42...입력부, 43...표시부,40 ... control section, 41 ... wire, 42 ... input section, 43 ... display section,
50...스폿 용접건, 51...하부 용접 팁, 52...상부 용접 팁,50 ... spot welding gun, 51 ... bottom welding tip, 52 ... top welding tip,
60...차체 패널.60 ... body panels.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0048110A KR100491923B1 (en) | 2002-08-14 | 2002-08-14 | Automatic spot welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0048110A KR100491923B1 (en) | 2002-08-14 | 2002-08-14 | Automatic spot welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040015940A KR20040015940A (en) | 2004-02-21 |
| KR100491923B1 true KR100491923B1 (en) | 2005-05-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0048110A KR100491923B1 (en) | 2002-08-14 | 2002-08-14 | Automatic spot welding machine |
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| Country | Link |
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| KR (1) | KR100491923B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101693432B1 (en) | 2015-07-28 | 2017-01-05 | 임원식 | Spot Welding Device for Batteries |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100788589B1 (en) * | 2007-01-19 | 2007-12-26 | 삼성에스디아이 주식회사 | Organic light emitting diodes display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717390A (en) * | 1980-07-04 | 1982-01-29 | Ohara Kinzoku Kogyo Kk | Spot welding method for surface treated steel plate |
| JPH10175077A (en) * | 1996-12-13 | 1998-06-30 | Nissan Motor Co Ltd | Spot welding machine |
| KR19980039605U (en) * | 1996-12-20 | 1998-09-15 | 양재신 | Welding Aids for Curved Flange |
-
2002
- 2002-08-14 KR KR10-2002-0048110A patent/KR100491923B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717390A (en) * | 1980-07-04 | 1982-01-29 | Ohara Kinzoku Kogyo Kk | Spot welding method for surface treated steel plate |
| JPH10175077A (en) * | 1996-12-13 | 1998-06-30 | Nissan Motor Co Ltd | Spot welding machine |
| KR19980039605U (en) * | 1996-12-20 | 1998-09-15 | 양재신 | Welding Aids for Curved Flange |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101693432B1 (en) | 2015-07-28 | 2017-01-05 | 임원식 | Spot Welding Device for Batteries |
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| KR20040015940A (en) | 2004-02-21 |
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