KR20150044226A - Inspection apparatus for welding - Google Patents

Inspection apparatus for welding Download PDF

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Publication number
KR20150044226A
KR20150044226A KR20130123349A KR20130123349A KR20150044226A KR 20150044226 A KR20150044226 A KR 20150044226A KR 20130123349 A KR20130123349 A KR 20130123349A KR 20130123349 A KR20130123349 A KR 20130123349A KR 20150044226 A KR20150044226 A KR 20150044226A
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welding
magnetic force
inspection apparatus
suction
unit
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KR20130123349A
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Korean (ko)
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김병남
추성춘
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주식회사 엘지화학
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Publication of KR20150044226A publication Critical patent/KR20150044226A/en

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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
    • B23K31/12—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 investigating the properties, e.g. the weldability, of materials
    • B23K31/125—Weld quality monitoring
    • 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
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Quality & Reliability (AREA)
  • Biochemistry (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present invention relates to a welding inspection apparatus to check a welding integrity in manufacturing a secondary battery. The welding inspection apparatus comprises: a suction unit to suction-hold a weldment for a welding integrity inspection; and a magnetic holding unit to pull the weldment, wherein the weldment is placed between the suction unit and the magnetic holding unit. The welding inspection apparatus allows inspection by the naked eye, and provides a clear inspection results.

Description

용접검사장치{INSPECTION APPARATUS FOR WELDING}[0001] INSPECTION APPARATUS FOR WELDING [0002]

본 발명은 이차전지의 제조공정 중 용접작업이 이루어진 용접부의 결합상태를 검사하기 위한 용접검사장치에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a welding inspection apparatus for inspecting a welding state of a welded portion in a manufacturing process of a secondary battery.

최근 모바일 기기에 대한 수요가 급격하게 증가함에 따라 모바일 기기에 적용되는 이차전지의 수요도 증가하고 있으며, 이에 따라 이차전지에 대한 기술적 연구도 활발하게 이루어 지고 있다.Recently, as the demand for mobile devices is rapidly increasing, the demand for secondary batteries applied to mobile devices is also increasing. Accordingly, technical researches on secondary batteries have been actively conducted.

일반적으로 이차 전지는 재충전이 가능하고 소형 및 대용량화가 가능한 전지로, 대표적으로는 리튬(Li) 이차전지가 사용되고 있다.2. Description of the Related Art Generally, a secondary battery is a rechargeable battery capable of being small and large in capacity, and typically a lithium (Li) secondary battery is used.

그러나, 전술된 것과 같이 이차전지가 충전이 가능하고, 친환경적인 에너지원임에도 불구하고, 이차전지의 안정성과 관련해서는 끊임없이 문제가 대두되고 있다.However, although the rechargeable battery can be charged and is an environmentally friendly energy source as described above, there is a constant problem in relation to the stability of the rechargeable battery.

이에 따라 이차전지의 조립과정에서 수행되는 용접작업 결과를 확인하는 검사가 필수적으로 이루어지는데, 비파괴 방식으로써 초음파 탐상을 이용하여 결함을 검출하거나, 용접이 이루어진 용접부의 온도를 측정하여 용접상태를 검사하는 방식이 사용되고 있다.Accordingly, it is essential to inspect the result of the welding operation performed during the assembling process of the secondary battery. In the non-destructive method, the defect is detected using the ultrasonic probe or the welding condition is checked by measuring the temperature of the welded portion Method is being used.

그러나 이러한 비파괴 방식은 용접물에 손상을 주지 않으면서 품질을 평가할 수 있으나, 관련 장치가 고가이고 사용자가 장비에 대한 숙련 기술 습득 및 검사 결과물에 대한 판독을 위해서는 상당히 많은 시간이 소요되는 문제점이 있었다.
However, such a non-destructive method can evaluate the quality without damaging the welds, but the related apparatuses are expensive, and the user takes a long time to acquire the skill of the equipment and to read the test results.

공개특허공보 10-2008-0109947 (공개일자: 2008년 12월 18일)Open Patent Publication No. 10-2008-0109947 (Published on Dec. 18, 2008)

본 발명은 용접물의 용접부를 양방향으로 끌어당겨서 용접부의 용접상태를 육안으로 확인할 수 있는 용접검사장치를 제공하는 데 목적이 있다.
An object of the present invention is to provide a welding inspection apparatus capable of visually confirming a welding state of a welded portion by pulling the welded portion of the welded body in both directions.

본 발명인 용접검사장치는, 용접물간의 접합상태를 확인하기 위하여 용접물을 끌어당기는 흡입부; 상기 용접물을 사이에 두고 상기 흡입구와 이격된 상태로 위치하며 상기 용접물을 끌어당기는 자력고정부;를 포함한다.A welding inspection apparatus according to the present invention comprises: a suction unit for pulling up a welding material to check the state of bonding between the welding products; And a magnetic force fixing part which is located in a state of being spaced apart from the suction port with the welding material interposed therebetween, and pulls the welding material.

상기 자력고정부는, 상기 용접물 하부에 위치하고 상기 용접물을 하측으로 끌어당기는 것을 특징으로 한다.And the magnetic force fixing portion is located at a lower portion of the welding member and pulls the welding member downward.

상기 용접물을 상기 흡입부 및 상기 자력고정부 사이에서 이송시킬 수 있는 이송부를 더 포함한다.And a transferring portion capable of transferring the welding material between the suction portion and the magnetic force fixing portion.

상기 흡입부 및 상기 자력고정부는, 상기 용접물을 끌어당기는 힘의 크기를 제어할 수 있는 제어부를 각각 구비한 것을 특징으로 한다.The suction unit and the magnetic force fixing unit are each provided with a control unit capable of controlling the magnitude of a force of pulling the welding object.

상기 이송부는 상기 용접물을 이송시키는 컨베이어벨트; 상기 컨베이어벨트를 이동시키는 컨베이어구동부;를 포함한다.Wherein the conveying portion includes a conveyor belt for conveying the workpiece; And a conveyor driving unit for moving the conveyor belt.

상기 컨베이어벨트는 관통공이 형성되어 있는 것을 특징으로 한다.
The conveyor belt is characterized in that a through hole is formed.

본 발명에 따른 용접검사장치는, 용접물의 용접상태를 육안으로 확인 할 수 있어 용접상태 판독이 단시간 동안에 명확하게 이뤄질 수 있다.INDUSTRIAL APPLICABILITY The welding inspection apparatus according to the present invention can visually confirm the welding state of the welding object, so that the reading of the welding state can be clearly performed in a short time.

그리고, 단순히 흡입부 및 자력고정부만으로도 용접상태의 파악이 가능하므로, 비용이 절감되며 판독을 위한 작업자의 교육이 요구되지 않아 경제적이다.Further, since the welding state can be grasped only by the suction portion and the magnetic force fixing portion, the cost is reduced and the training of the operator for reading is not required, which is economical.

또한, 이송부 상에 다수개의 용접물을 배치시키고 흡입부 및 자력고정부 사이를 용접물이 이동하게 함으로써 용접검사가 신속하게 이루어 질 수 있다.In addition, a plurality of welded materials are disposed on the transfer part, and the welded material moves between the suction part and the magnetic force fixing part, so that the welding inspection can be performed quickly.

게다가, 흡입부 및 자력고정부가 용접물을 끌어당기는 힘을 제어할 수 있으므로, 다양한 용접물의 용접검사가 이루어질 수 있다.
In addition, since the suction portion and the magnetic force fixing portion can control the pulling force of the workpiece, welding inspection of various workpieces can be performed.

[도 1]은 본 발명인 용접검사장치의 구조를 개략적으로 나타낸 도면이다.
[도 2]는 [도 1]에 도시한 용접검사장치에 이송부가 포함된 구조를 개략적으로 나타낸 도면이다.
[도 3]은 일반적인 용접작업이 수행되는 모습을 나타낸 도면이다.
[도 4]는 이차전지에서 탭과 리드선이 용접된 모습을 나타낸 도면이다.
[도 5]는 [도 4]에 도시된 탭과 리드선이 용접된 모습을 확대하여 나타낸 도면이다.1 is a view schematically showing a structure of a welding inspection apparatus according to the present invention.
[Fig. 2] is a view schematically showing a structure in which the welding inspection apparatus shown in Fig. 1 includes a transfer section.
3 is a view showing a state in which a general welding operation is performed.
4 is a view showing a state where a tab and a lead wire are welded to each other in a secondary battery.
[Fig. 5] is an enlarged view showing a state in which the tab and the lead wire shown in Fig. 4 are welded.

이하에서는, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명을 용이하게 실시할 수 있도록 하기 위하여, 본 발명의 바람직한 실시 예들에 관하여 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

먼저 [도 1]을 참조하면, 본 발명인 용접검사장치는 크게 흡입부(100) 및 자력고정부(200)를 포함한다.Referring first to FIG. 1, the welding inspection apparatus of the present invention includes a suction unit 100 and a magnetic force fixing unit 200.

흡입부(100)는 공기를 흡입하여 용접물을 끌어당기는 기능을 갖는 것으로, 용접물의 상측에 위치한다. 그리고 도시하지는 않았으나 흡입부(100)는 공기를 흡입할 수 있는 흡기팬 및 흡기팬을 제어할 수 있는 제어부를 별도로 구비하여 용접물의 흡입 상태를 조절할 수 있다.
The suction unit 100 has a function of sucking in air to draw a welded material, and is located on the upper side of the welded material. Although not shown, the suction unit 100 may include an intake fan capable of sucking air and a control unit capable of controlling the suction fan, so that the suction state of the workpiece can be adjusted.

자력고정부(200)는 자력을 이용하여 용접물을 끌어당기는 기능을 갖는 것으로, 전류가 흐를 때에는 자기화되고, 전류가 흐르지 않을 때에는 비자기화 되는 전자석이 적용될 수 있으며, 자력고정부(200)도 별도의 제어부를 통해 전류의 세기를 조절하여 용접물을 끌어당기는 힘을 조절할 수도 있다.The magnetic force fixing part 200 has a function of pulling a workpiece by using a magnetic force. When the electric current flows, the magnetism fixing part 200 is magnetized. When the electric current does not flow, a non-magnetizing electromagnet can be applied. It is possible to adjust the strength of the current through the control unit of the control unit so as to adjust the pulling force of the weld.

그러나, 자력고정부(200)는 전자석 이외에도 일반적인 영구자석을 적용할 수도 있다.However, the magnetic force fixing part 200 may be applied with a permanent magnet other than the electromagnet.

그리고 자력고정부(200)는 용접물을 위치시킬 수 있고 자력이 통과할 수 있는 선반(10) 등의 하부에 위치하여 용접물을 일정한 힘으로 고정시킬 수 있으며, 선반(10)을 이용하지 않고 자력고정부(200) 자체에 용접물을 위치시킬 수도 있다.
The magnetic force fixing unit 200 is positioned below the shelf 10 that can position the welding object and can pass the magnetic force so that the welding object can be fixed with a predetermined force. The welding member may be placed on the portion 200 itself.

본 발명은 [도 2]에서와 같이 이송부(300)를 더 포함할 수 있다.The present invention may further include a transfer unit 300 as shown in FIG.

이송부(300)는 용접물을 이송시키는 기능을 갖는 것으로, 컨베이어벨트(310) 및컨베이어구동부(320)를 포함한다.The transfer unit 300 has a function of transferring the welding material, and includes a conveyor belt 310 and a conveyor drive unit 320.

컨베이어벨트(310) 및 컨베이어구동부(320)는 일반적인 컨베이어구조와 동일하되, 컨베이어벨트(310) 상에는 자력고정부(200)의 자력이 원활하게 통과할 수 있는 관통공(315)이 형성되어 있다. 따라서 용접물이 컨베이어벨트(310) 상에서 이동 중일 때에도 자력고정부(200)의 자력이 용접물을 끌어당겨 용접물이 컨베이어 상에 고정될 수 있다.The conveyor belt 310 and the conveyor drive unit 320 are the same as those of a general conveyor structure. A through hole 315 is formed on the conveyor belt 310 so that the magnetic force of the magnetic force fixing unit 200 can smoothly pass therethrough. Therefore, even when the workpiece is moving on the conveyor belt 310, the magnetic force of the magnetic force fixing portion 200 pulls the workpiece and the workpiece can be fixed on the conveyor.

전술된 용접검사장치를 구성하는 흡입부(100) 및 자력고정부(200)는, 흡입부(100)가 용접물의 하부에 위치하고 자력고정부(200)가 용접물의 상부에 위치하는 구조로 배치될 수도 있다.
The suction unit 100 and the magnetic force fixing unit 200 constituting the welding inspection apparatus described above are arranged such that the suction unit 100 is positioned below the weld and the magnetic force fixing unit 200 is positioned above the weld It is possible.

이하에서는 본 발명인 용접검사장치의 작용 및 효과에 대해서 설명한다.Hereinafter, the operation and effect of the welding inspection apparatus of the present invention will be described.

본 발명인 용접검사장치는, [도 3] 내지 [도 5]에 도시한 것과 같이 용접작업이 수행된 용접물의 용접상태를 검사한다.The welding inspection apparatus according to the present invention inspects the welding condition of the welded workpiece as shown in [Fig. 3] to [Fig. 5].

용접물의 일례로써, 파우치형 이차전지는 음극 또는 양극 탭(1)과 각각의 탭(1)에 연결되는 리드선(2)간에 용접작업이 이루어 진다.As an example of the welded material, the pouch type secondary battery is welded between the negative electrode or positive electrode tab 1 and the lead wire 2 connected to each tab 1.

구체적으로, [도 5]에서와 같이 탭(1) 및 리드선(2)을 맞닿게 배치시킨 후, 용접제어장치(W)와 연결된 한 쌍의 용접봉(W1,W2)을 탭(1) 및 리드선(2)의 상하부에 각각 위치시킨 후 압력을 가한다. 그리고 용접제어장치(W)를 이용하여 용접봉(W1,W2)을 통해 전류가 흐르도록 하면 탭(1)과 리드선(2)에 용접부(A)가 형성되면서 용접작업이 이루어진다.
Specifically, a pair of welding rods W1 and W2 connected to the welding control apparatus W are connected to the tab 1 and the lead wire 2 after the tap 1 and the lead wire 2 are disposed in contact with each other as shown in Fig. 5 (2), and then pressure is applied. When a current is allowed to flow through the welding electrodes W1 and W2 using the welding control apparatus W, the welding operation is performed while the welding portion A is formed in the tab 1 and the lead wire 2. [

이와 같이 용접작업이 완료되면, 용접부(A)의 용접상태를 검사하기 위해서 본 발명인 용접검사장치에 용접부(A)가 형성된 탭(1) 및 리드선(2)(이하에서는 용접물(1,2)라고 한다)이 이 위치되도록 한다.When the welding operation is completed in this manner, the tab 1 and the lead wire 2 (hereinafter, referred to as the welded products 1 and 2), in which the welding portion A is formed in the welding inspection apparatus of the present invention, To be positioned.

즉, [도 1]에서와 같이 용접물(1,2)을 자력이 통과할 수 있는 선반(10) 위에 위치시키거나 자력고정부(200) 바로 위에 위치시켜 용접물(1,2)이 흡입부(100) 및 자력고정부(200) 사이에 위치되도록 한다.That is, as shown in FIG. 1, the workpieces 1 and 2 are placed on the shelf 10 through which the magnetic force can pass or directly above the magnetic force fixing part 200, 100 and the magnetic force fixing portion 200. [

그리고, 별도의 제어부를 통해 흡입부(100) 및 자력고정부(200)를 작동시키면,흡입부(100)는 용접물(1,2)을 상측으로 끌어당기고, 자력고정부(200)는 용접물(1,2)을 하측으로 끌어당긴다.When the suction unit 100 and the magnetic force fixing unit 200 are operated through the separate control unit, the suction unit 100 pulls the welds 1,2 upward and the magnetic force fixing unit 200 moves the welds 1,2) to the bottom.

이 때, 용접물(1,2)의 용접상태가 견고하지 못할 경우에는 용접부(A)의 파단으로 인해 양 용접물(1,2)은 상하로 분리되게 된다.
At this time, when the welded state of the welded products (1, 2) is not stable, the two welded products (1, 2) are separated vertically due to the fracture of the welded portion (A).

또한, [도 2]에서와 같이 용접물(1,2)을 이송부(300) 중 컨베이어벨트(310)상에 위치시켜 검사를 수행할 수도 있다. In addition, as shown in FIG. 2, the welds 1,2 may be placed on the conveyor belt 310 of the transfer unit 300 to perform inspection.

컨베이어구동부(320)의 운전으로 인해 컨베이어벨트(310) 및 용접물(1,2)이 이동하게 되고, 용접물(1,2)은 흡입부(100) 및 자력고정부(200) 사이를 통과하게 된다.The conveyor belt 310 and the workpieces 1 and 2 are moved by the operation of the conveyor drive unit 320 and the workpieces 1 and 2 pass between the suction unit 100 and the magnetic force fixing unit 200 .

이 때, 전술된 것과 같이 흡입부(100) 및 자력고정부(200)를 작동시키면, 흡입부(100)는 용접물(1,2)을 상측으로 끌어당기고, 자력고정부(200)는 용접물(1,2)을 하측으로 끌어당긴다. 따라서, 용접물(1,2)의 용접상태가 견고하지 못할 경우에는 용접부(A)의 파단으로 인해 양 용접물(1,2)은 상하로 분리되게 된다.At this time, when the suction unit 100 and the magnetic force fixing unit 200 are operated as described above, the suction unit 100 pulls the welds 1,2 upward and the magnetic force fixing unit 200 moves the welds 1,2) to the bottom. Therefore, when the welded state of the welded products 1 and 2 is not robust, the two welded products 1 and 2 are separated vertically due to the fracture of the welded portion A.

따라서 본 발명인 용접검사장치는 용접물(1,2)의 용접상태를 육안으로 확인할 수 있어 판독을 위한 작업자의 교육이 요구되지 않아 경제적이며, 이송부(300)상에서 다수개의 용접물(1,2)을 이송시킴으로써 검사를 신속하게 수행할 수 있다.Therefore, the welding inspection apparatus according to the present invention can visually confirm the welding state of the welded products (1,2), so that the training of the operator for reading is not required and it is economical and a plurality of welded products (1,2) The inspection can be performed quickly.

또한, 흡입부(100) 및 자력고정부(200)가 용접물(1,2)을 끌어당기는 힘의 크기가 제어부를 통해 제어될 수 있으므로 용접물(1,2)에 따라 요구되는 용접 강도에 따라 그 힘을 조절할 수 있어 다양한 용접물(1,2)에 적용이 가능하다.
Since the magnitude of the force by which the suction unit 100 and the magnetic force fixing unit 200 pull the workpieces 1 and 2 can be controlled through the control unit, It can be applied to various welding materials (1, 2) because the force can be adjusted.

이상에서 본 발명이 구체적인 구성요소 등과 같은 특정 사항들과 한정된 실시 예 및 도면에 의해 설명되었으나, 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명이 상기 실시 예들에 한정되는 것은 아니며, 본 발명이 속하는 기술분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형을 꾀할 수 있다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention.

1, 2: 용접물 10: 선반
100: 흡입부 200: 자력고정부
300: 이송부 310: 컨베이어벨트
320: 컨베이어구동부 1, 2: Welding material 10: Shelf
100: suction portion 200: magnetic force fixing portion
300: conveying part 310: conveyor belt
320: conveyor drive

Claims (6)

용접물간의 접합상태를 확인하기 위하여 용접물을 끌어당기는 흡입부;
상기 용접물을 사이에 두고 상기 흡입구와 이격된 상태로 위치하며 상기 용접물을 끌어당기는 자력고정부;
를 포함하는 용접검사장치.
A suction part for pulling the welding material to check the welding state between the welding parts;
A magnetic force fixing part located in a state of being spaced apart from the suction port with the welding material interposed therebetween and drawing the welding material;
And a welding device for welding.
제1항에서,
상기 자력고정부는,
상기 용접물 하부에 위치하고 상기 용접물을 하측으로 끌어당기는 것을 특징으로 하는 용접검사장치.
The method of claim 1,
The magnetic force-
And the welding member is located below the welding member and pulls the welding member downward.
제1항에서,
상기 용접물을 상기 흡입부 및 상기 자력고정부 사이에서 이송시킬 수 있는 이송부를 더 포함하는
용접검사장치.
The method of claim 1,
And a transferring portion capable of transferring the weld between the suction portion and the magnetic force fixing portion
Welding inspection apparatus.
제1항에서,
상기 흡입부 및 상기 자력고정부는,
상기 용접물을 끌어당기는 힘의 크기를 제어할 수 있는 제어부를 각각 구비한 것을 특징으로 하는
용접검사장치.
The method of claim 1,
Wherein the suction unit and the magnetic force fixing unit comprise:
And a control unit for controlling the magnitude of the pulling force of the welding object
Welding inspection apparatus.
제3항에서,
상기 이송부는
상기 용접물을 이송시키는 컨베이어벨트;
상기 컨베이어벨트를 이동시키는 컨베이어구동부;
를 포함하는
용접검사장치.
4. The method of claim 3,
The conveying portion
A conveyor belt for conveying the weld;
A conveyor driving unit for moving the conveyor belt;
Containing
Welding inspection apparatus.
제5항에서,
상기 컨베이어벨트는 관통공이 형성되어 있는 것을 특징으로 하는
용접검사장치.
The method of claim 5,
Characterized in that the conveyor belt is formed with a through-hole
Welding inspection apparatus.
KR20130123349A 2013-10-16 2013-10-16 Inspection apparatus for welding KR20150044226A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107515157A (en) * 2017-08-29 2017-12-26 深圳市泰霸电源系统有限公司 The detection method and its device of welding battery intensity
WO2018203594A1 (en) * 2017-05-02 2018-11-08 주식회사 엘지화학 Apparatus and method for inspecting welding of secondary battery
CN109014636A (en) * 2018-08-01 2018-12-18 张祖红 A kind of battery string welding machine based on negative-pressure adsorption mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018203594A1 (en) * 2017-05-02 2018-11-08 주식회사 엘지화학 Apparatus and method for inspecting welding of secondary battery
US11179812B2 (en) 2017-05-02 2021-11-23 Lg Chem, Ltd. Apparatus and method for inspecting welding of secondary battery
CN107515157A (en) * 2017-08-29 2017-12-26 深圳市泰霸电源系统有限公司 The detection method and its device of welding battery intensity
CN109014636A (en) * 2018-08-01 2018-12-18 张祖红 A kind of battery string welding machine based on negative-pressure adsorption mechanism

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