KR100764714B1 - Laser weld zone pressurization apparatus - Google Patents

Laser weld zone pressurization apparatus Download PDF

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Publication number
KR100764714B1
KR100764714B1 KR1020060055493A KR20060055493A KR100764714B1 KR 100764714 B1 KR100764714 B1 KR 100764714B1 KR 1020060055493 A KR1020060055493 A KR 1020060055493A KR 20060055493 A KR20060055493 A KR 20060055493A KR 100764714 B1 KR100764714 B1 KR 100764714B1
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South Korea
Prior art keywords
support member
laser
panel
upper panel
moving
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KR1020060055493A
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Korean (ko)
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오광민
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현대자동차주식회사
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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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
    • 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)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Laser Beam Processing (AREA)

Abstract

A laser welding zone pressing apparatus is provided to emit the gas generated from the welding work, and to prevent the welding defect by keeping the separated state of upper and lower panels through an interval maintaining projection. A laser welding zone pressing apparatus comprises a base, a lower mold, an interval maintaining projection molding unit, a laser generator(40), a pressing roll(60), and first, second, and third moving units. The base is mounted with upper and lower panels(10,11). A recessed groove is formed on an upper surface of one end of the lower mold to form an interval maintaining projection(10a) to the end of the upper panel. The interval maintaining projection molding unit has an upper mold on which a lower end surface is formed with a molding projection. The laser generator is installed on the base through the medium of a support member. The pressing roll is installed to the support member to press the upper surface of the upper panel separated from a laser(41). The first moving unit moves the support member to an X direction. The second moving unit moves to the support member to a Y direction. The third moving unit moves the support member to a Z direction.

Description

레이저 용접부 가압장치{Laser weld zone pressurization apparatus}Laser weld zone pressurization apparatus

도1은 종래의 레이저 용접과정을 나타낸 측면도.1 is a side view showing a conventional laser welding process.

도2a 정상 상태의 용접비드를 나타낸 확대사진Figure 2a is an enlarged photograph showing the weld bead in a steady state

도2b는 비정상 상태의 용접비드를 나타낸 확대사진.Figure 2b is an enlarged photograph showing the weld bead in an abnormal state.

도3은 본 발명에 따른 용접부 가압장치를 나타낸 사시도.Figure 3 is a perspective view showing a welding unit pressing device according to the present invention.

도4는 본 발명에 따른 플랜지 성형부를 나타낸 정면도.Figure 4 is a front view showing a flange forming part according to the present invention.

도5는 본 발명에 따른 가압장치의 작동상태를 나타낸 측면도.Figure 5 is a side view showing the operating state of the pressing device according to the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

10 : 상부 패널 10a : 간격유지 돌기10: top panel 10a: spacing maintenance projection

11 : 하부 패널 30 : 베이스11: lower panel 30: base

40 : 레이저 발생기 41 : 레이저40: laser generator 41: laser

50 : 지지부재 60 : 가압롤50: support member 60: pressure roll

70 : 제1이동수단 71 : 제2이동수단70: first moving means 71: second moving means

72 : 제3이동수단 80 : 간격유지돌기 성형수단72: third moving means 80: spacing holding projection forming means

81 : 상형 81a : 성형돌기81: upper mold 81a: forming projection

82 : 하형 82a : 요입홈82: lower type 82a: recessed groove

본 발명은 레이저 용접부 가압장치에 관한 것으로서, 더욱 상세하게는 한 쌍의 패널을 용접할 때 용접면에서 발생되는 가스로 인한 용접 불량을 방지할 수 있는 레이저 용접부 가압장치에 관한 것이다.The present invention relates to a laser welder pressurizing apparatus, and more particularly, to a laser welder pressurizing apparatus capable of preventing a welding defect due to the gas generated in the welding surface when welding a pair of panels.

일반적으로 한 쌍의 패널을 고정시킬 때에는 용접 방법을 이용하고 있으며, 최근에는 레이저를 이용하여 패널을 용접 고정하는 레이저 용접기가 널리 사용되고 있다.In general, a welding method is used to fix a pair of panels, and recently, a laser welding machine for welding and fixing a panel using a laser has been widely used.

이러한 레이저 용접기는 한 쌍의 패널을 접촉시킨 상태에서 상부에 설치된 패널에 레이저를 조사하므로 인하여 상기 레이저에 의해서 패널의 접촉면이 용융되도록 한 것이다.Such a laser welding machine is to irradiate a laser on the panel installed in the upper state in contact with a pair of panels to allow the contact surface of the panel to be melted by the laser.

즉, 도1에 나타낸 바와 같이 하부 패널(110)의 상면에 상부 패널(100)을 접촉시킨 후 상기 상부 패널(100)의 상면에 가압롤러(200)를 안착하여, 상부 패널(100)과 하부 패널(110)의 접촉면을 근접시킨다, 이러한 상태에서 레이저 발생기(300)에서 발생된 레이저(301)를 상기 가압롤러(200)의 일측에 조사시키면서 가압롤러(200)와 레이저 발생기(300)를 동시에 이동시키면 상기 레이저(301)가 조사되는 부분의 상부 패널(100)과 하부 패널(110)의 접촉면이 가압롤러(200)에 의해서 긴밀히 접촉되는 것으로서, 상기 상부 패널(100)과 하부 패널(110)은 용접 고정되는 것이다.That is, as shown in FIG. 1, the upper panel 100 is brought into contact with the upper surface of the lower panel 110, and then the pressure roller 200 is seated on the upper surface of the upper panel 100. The contact surface of the panel 110 is brought close to each other. In this state, the pressure roller 200 and the laser generator 300 are simultaneously irradiated with the laser 301 generated by the laser generator 300 to one side of the pressure roller 200. When moved, the contact surface of the upper panel 100 and the lower panel 110 of the portion to which the laser 301 is irradiated is in close contact by the pressure roller 200, the upper panel 100 and the lower panel 110 Is fixed by welding.

그러나 이러한 종래의 장치는 가압롤러(200)에 의해서 가압되어 근접되는 상 부 패널(100)과 하부 패널(110)의 접촉면과 레이저 발생기(300)에서 발생된 레이저(301)가 조상되는 부분의 일직선상에 위치되므로 레이저(301)에 의해서 상부 패널(100)과 하부 패널(110)이 용접될 때 용접면에 발생되는 가스가 배출되지 못하게 되는 문제점이 있었다.However, such a conventional apparatus is a straight line of the contact surface of the upper panel 100 and the lower panel 110 pressed by the pressure roller 200 and the portion where the laser 301 generated by the laser generator 300 is ancestored. Since the upper panel 100 and the lower panel 110 is welded by the laser 301, the gas generated on the welding surface may not be discharged.

따라서, 상기 상부 패널(100)과 하부 패널(110)의 용접면에 발생되는 가스가 안정적으로 배출될 경우에는 도2a에 나타낸 바와 같이 정상적인 비드가 발생되지만, 가스가 배출되지 않을 경우에는 도2b에 나타낸 바와 같이 비적상적인 비드가 발생하게 되고, 이와 같이 비정상적이 비드가 발생될 경우에는 용접불량으로 인하여 상부 패널(100)과 하부 패널(110)이 분리되는 등의 문제점이 있었다.Therefore, when the gas generated on the welding surface of the upper panel 100 and the lower panel 110 is stably discharged, as shown in FIG. 2A, normal beads are generated, but when gas is not discharged, FIG. As shown, abnormal beads are generated, and when abnormal beads are generated, there is a problem that the upper panel 100 and the lower panel 110 are separated from each other due to poor welding.

본 발명은 상기한 문제점을 해결하기 위하여 발명한 것으로서, 그 목적은 상부 패널과 하부 패널이 근접되게 상부 패널에 접촉되는 가압롤러의 접촉면과 상기 상부 패널과 하부 패널을 용접하는 레이저를 소정거리 이격시킴과 동시에 상부 패널의 단부에 간격유지돌기를 형성하여 용접면에서 발생되는 가스를 원활히 배출시켜 용접불량을 방지할 수 있는 레이저 용접부 가압장치를 제공함에 있다.The present invention has been made to solve the above problems, the object of which is to space the contact surface of the pressure roller that the upper panel and the lower panel is in close contact with the upper panel and the laser welding the upper panel and the lower panel a predetermined distance. At the same time to form a gap maintaining projection at the end of the upper panel to smoothly discharge the gas generated from the welding surface to provide a laser welding unit pressurization device that can prevent the welding failure.

상기 목적을 달성하기 위한 본 발명의 특징적인 구성을 설명하면 다음과 같다.Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

본 발명의 레이저 용접부 가압장치는 상부 패널 및 하부 패널이 안착되는 베이스와, 상기 베이스의 상부에 지지부재를 매개로 설치된 레이저 발생기와, 상기 레이저 발생기에서 발생되어 상부 패널에 조사되는 레이저와 소정거리 이격된 위치의 상부 패널 상면을 가압하도록 지지부재에 설치된 가압롤과, 상기 지지부재를 X방향으로 이동시키는 제1이동수단과, 상기 지지부재를 Y방향으로 이동시키는 제2이동수단과, 상기 지지부재를 Z방향으로 이동시키는 제3이동수단을 포함하여서 된 것이다.The laser welding device pressurizing apparatus of the present invention is a base on which the upper panel and the lower panel are seated, a laser generator installed on the upper part of the base via a support member, and a laser beam generated from the laser generator and irradiated to the upper panel, and separated from the predetermined distance. A pressing roll provided on the support member to press the upper surface of the upper panel at the position, first moving means for moving the support member in the X direction, second moving means for moving the support member in the Y direction, and the support member. It includes the third moving means for moving in the Z direction.

이와 같은 특징을 갖는 본 발명을 상세하게 설명하면 다음과 같다.Referring to the present invention having such characteristics in detail as follows.

도3은 본 발명에 따른 용접부 가압장치를 나타낸 사시도이고, 도4는 본 발명에 따른 플랜지 성형부를 나타낸 정면도이며, 도5는 본 발명에 따른 가압장치의 작동상태를 나타낸 측면도이다.Figure 3 is a perspective view showing a welding portion pressing device according to the present invention, Figure 4 is a front view showing a flange forming part according to the present invention, Figure 5 is a side view showing an operating state of the pressing device according to the present invention.

여기에서 참조되는 바와 같이 본 발명은 용접 고정하기 위한 상부 패널(10) 및 하부 패널(11)이 안착되는 베이스(30)가 마련되어 있고, 상기 베이스(30)의 상부에는 상부 패널(10)과 하부 패널(11)을 용접하기 위한 레이저(41)가 발생되는 레이저 발생기(40)가 마련되어 있되, 그 레이저 발생기(40)는 지지부재(50)를 매개로 설치되어 있다.As referred to herein, the present invention is provided with a base 30 on which the upper panel 10 and the lower panel 11 are seated, and the upper panel 10 and the lower portion of the base 30 are fixed. A laser generator 40 for generating a laser 41 for welding the panel 11 is provided, and the laser generator 40 is provided via a supporting member 50.

한편, 상기 지지부재(50)에는 가압롤(60)이 설치되어 있되, 그 가압롤(60)의 하단부 즉, 상부 패널(10)의 상면에 접촉되는 부분은 상기 상부 패널(10)에 조사되는 레이저(41)와 소정거리 이격되게 설치되어 있다.On the other hand, the support member 50 is provided with a pressing roll 60, the lower end of the pressing roll 60, that is, the portion in contact with the upper surface of the upper panel 10 is irradiated to the upper panel 10 The laser 41 is provided to be spaced apart from the predetermined distance.

또한, 상기 지지부재(50)에는 그 지지부재(50)를 X방향으로 이동시키는 제1이동수단(70)과, 상기 지지부재(50)를 Y방향으로 이동시키는 제2이동수단(71)과, 상기 지지부재(50)를 Z방향으로 이동시키는 제3이동수단(72)이 각각 설치되어 있 다.In addition, the support member 50, the first moving means 70 for moving the support member 50 in the X direction, the second moving means 71 for moving the support member 50 in the Y direction and The third moving means 72 for moving the support member 50 in the Z direction is provided.

그리고, 상기 상부 패널(10)과 하부 패널(11)이 분리되게 상부 패널(10)의 단부에 간격유지 돌기(10a)를 형성하는 간격유지돌기 성형수단(80)이 마련되어 있되, 그 간격유지돌기 성형수단(80)은 일측 단부 상면에 요입홈(82a)이 형성된 하형(82)과, 상기 요입홈(82a)에 대응되는 성형돌기(81a)가 일측 단부 저면에 형성된 상형(81)으로 이루어져 있다.In addition, the gap holding protrusion forming means 80 is formed at the end of the top panel 10 so as to separate the upper panel 10 and the lower panel 11 from each other. The molding means 80 is composed of a lower mold 82 having a recessed groove 82a formed on an upper surface of one side, and an upper mold 81 having a molding protrusion 81a corresponding to the recessed groove 82a formed on the bottom surface of one end portion. .

이와 같이 구성된 본 발명을 상세히 설명하면 다음과 같다.Referring to the present invention configured as described in detail as follows.

먼저, 간격유지돌기 성형수단(80)의 상형(81)과 하형(82)을 분리시킨 후 용접하고자 하는 상부 패널(10)의 단부를 하형(82)의 요입홈(82a) 상부에 안착시킨 후 상기 하형(82)의 상부에 상형(81)이 접촉되게 상형(81)을 하부로 이동시키면, 상기 상형(81)에 형성된 성형돌기(81a)는 상부 패널(10)의 단부를 가압하면서 상부 패널(10)의 단부에 간격유지 돌기(10a)를 형성하게 된다.First, after separating the upper mold 81 and the lower mold 82 of the gap retaining projection forming means 80, and then seat the end of the upper panel 10 to be welded to the top of the recess groove (82a) of the lower mold 82 When the upper mold 81 is moved downward so that the upper mold 81 is in contact with the upper portion of the lower mold 82, the forming protrusion 81 a formed on the upper mold 81 presses the end of the upper panel 10 while the upper panel is pressed. The gap holding protrusion 10a is formed at the end of the 10.

한편, 베이스(30)의 상면에 하부 패널(11)을 안착시킨 후 그 상면에 상부 패널(10)을 안착시키되, 상기 상부 패널(10)의 단부에 형성된 간격유지 돌기(10a)가 하부 패널(11)의 상면에 접촉될 수 있도록 상기 간격유지 돌기(10a)를 하부로 향하도록 안착시키는 것이다. Meanwhile, the lower panel 11 is seated on the upper surface of the base 30, and then the upper panel 10 is seated on the upper surface thereof, and the gap maintaining protrusion 10a formed at the end of the upper panel 10 is provided on the lower panel ( It is to be seated so that the gap holding projection (10a) to the bottom so as to contact the upper surface of 11).

이러한 상태에서 지지부재(50)에 설치된 제1이동수단(70), 제2이동수단(71) 및 제3이동수단(72)을 작동시켜, 상기 지지부재(50)의 하부에 설치된 가압롤(60)을 상부 패널(10)의 상면에 접촉시키면, 상기 가압롤(60)의 직하방에 위치된 상부 패널(10)과 하부 패널(11)은 긴밀히 접촉되는 것이며, 가압롤(60)이 접촉되지 않는 부분은 간격유지 돌기(10a)에 의해서 소정거리 이격된다.In this state, by operating the first moving means 70, the second moving means 71 and the third moving means (72) installed on the support member 50, the pressing roll installed in the lower portion of the support member 50 ( When 60 is in contact with the upper surface of the upper panel 10, the upper panel 10 and the lower panel 11 which is located directly below the pressing roll 60 is in intimate contact, the pressing roll 60 is in contact The part which is not made is spaced apart by a predetermined distance by the space keeping protrusion 10a.

이때 레이저 발생기(40)를 작동시키면, 그 레이저 발생기(40)에서 발생되는 레이저(41)는 가압롤(60)에 의해서 가압되는 상부 패널(10)과 하부 패널(11)의 접촉면으로부터 소정거리 이격된 위치에 조사되는 것이다.At this time, when the laser generator 40 is operated, the laser 41 generated by the laser generator 40 is spaced a predetermined distance from the contact surface of the upper panel 10 and the lower panel 11 pressed by the pressing roll 60. Will be investigated at the location.

상기와 같이 레이저(41)가 조사되면 상부 패널(10)과 하부 패널(11)이 용접되는 것이고, 이때 용접부의 상부 패널(10)과 하부 패널(11)은 이격된 상태를 유지하게 되므로 용접시 발생되는 가스가 원활하게 배출되는 것이다.When the laser 41 is irradiated as described above, the upper panel 10 and the lower panel 11 are welded. In this case, the upper panel 10 and the lower panel 11 of the welded portion are kept spaced apart from each other when welding. The gas generated is smoothly discharged.

한편, 상기 레이저(41)가 조사될 때 지지부재(50)를 이동시키면 상부 패널(10)과 하부 패널(11)이 길이 방향으로 용접되는 것이다.Meanwhile, when the support member 50 is moved when the laser 41 is irradiated, the upper panel 10 and the lower panel 11 are welded in the longitudinal direction.

이와 같이 본 발명은 상부 패널과 하부 패널을 긴밀히 접촉시키는 가압롤의 접촉면과 레이저가 조사되는 용접부가 소정거리 이격됨은 물론, 상기 용접부에 위치된 상부 패널과 하부 패널은 상부 패널에 형성된 간격유지돌기에 의해서 소정거리 이격된 상태를 유지하게 되므로 용접시 발생되는 가스가 원활하게 배출되어 용접불량을 미연에 방지할 수 있는 특유의 효과가 있다.As described above, the present invention is not only spaced apart by a predetermined distance from the contact surface of the press roll for closely contacting the upper panel and the lower panel with the laser irradiation, and the upper panel and the lower panel located at the welding portion are provided in the gap maintaining protrusion formed on the upper panel. Since the gas is maintained at a predetermined distance, the gas generated during welding is smoothly discharged, thereby preventing the welding defect in advance.

Claims (2)

상부 패널(10) 및 하부 패널(11)이 안착되는 베이스(30)와, 상기 상부 패널(10)과 하부 패널(11)이 분리되게 상부 패널(10)의 단부에 간격유지 돌기(10a)를 형성하도록 일측 단부 상면에 요입홈(82a)이 형성된 하형(82)과, 상기 요입홈(82a)에 대응되는 성형돌기(81a)가 일측 단부 저면에 형성된 상형(81)으로 이루어진 간격유지돌기 성형수단(80)과, 상기 베이스(30)의 상부에 지지부재(50)를 매개로 설치된 레이저 발생기(40)와, 상기 레이저 발생기(40)에서 발생되어 상부 패널(10)에 조사되는 레이저(41)와 소정거리 이격된 위치의 상부 패널(10) 상면을 가압하도록 지지부재(50)에 설치된 가압롤(60)과, 상기 지지부재(50)를 X방향으로 이동시키는 제1이동수단(70)과, 상기 지지부재(50)를 Y방향으로 이동시키는 제2이동수단(71)과, 상기 지지부재(50)를 Z방향으로 이동시키는 제3이동수단(72)을 포함함을 특징으로 하는 레이저 용접부 가압장치.A base 30 on which the upper panel 10 and the lower panel 11 are seated, and a gap maintaining protrusion 10a at an end of the upper panel 10 so as to separate the upper panel 10 and the lower panel 11. Spacing holding projection forming means consisting of a lower mold 82, the recessed groove (82a) is formed on the upper surface of one side end portion, and a forming protrusion (81a) corresponding to the recessed groove (82a) formed on the bottom surface of one end portion 80, a laser generator 40 installed on the base 30 via a support member 50, and a laser 41 generated by the laser generator 40 and irradiated to the upper panel 10. And a pressing roll 60 installed on the support member 50 to press the upper surface of the upper panel 10 at a position spaced apart by a predetermined distance, and first moving means 70 for moving the support member 50 in the X direction. A second movement means 71 for moving the support member 50 in the Y direction and a third movement for moving the support member 50 in the Z direction; Laser welding device, characterized in that it comprises a means (72). 삭제delete
KR1020060055493A 2006-06-20 2006-06-20 Laser weld zone pressurization apparatus KR100764714B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100479698B1 (en) 2000-12-25 2005-03-30 가와사키 쥬코교 가부시키가이샤 Laser-welding head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100479698B1 (en) 2000-12-25 2005-03-30 가와사키 쥬코교 가부시키가이샤 Laser-welding head

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