KR100961386B1 - Reverse-deformation jig device for weld deformation modification - Google Patents

Reverse-deformation jig device for weld deformation modification Download PDF

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KR100961386B1
KR100961386B1 KR1020090115733A KR20090115733A KR100961386B1 KR 100961386 B1 KR100961386 B1 KR 100961386B1 KR 1020090115733 A KR1020090115733 A KR 1020090115733A KR 20090115733 A KR20090115733 A KR 20090115733A KR 100961386 B1 KR100961386 B1 KR 100961386B1
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South Korea
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welding
deformation
fork bar
reverse
fork
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KR1020090115733A
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Korean (ko)
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류재기
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유전공업(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
    • 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
    • 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
    • B23K31/003—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 controlling of welding distortion
    • 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
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

PURPOSE: An inverse transform jig device for welding distortion correction is provided to secure the straightness of welding work. CONSTITUTION: An inverse transform jig device for welding distortion correction comprises a top and a bottom frame(11), a rotary shaft, a linear rail(14), a clamp power block(16), a fork bar, and a hydraulic cylinder. The top and bottom frame are fixed with the rotary shaft. The top frame is at a tilt toward the bottom frame around the rotary shaft in 45°. The clamp power block is formed on the linear rail end part of the top frame.

Description

용접변형 보정용 역변형 지그장치{reverse-deformation jig device for weld deformation modification}Reverse-deformation jig device for weld deformation modification

본 발명은 포크리프트 트럭의 작업장치의 비교적 길이가 길고 일측면에만 리프트 브라켓이 용접되어 길이방향으로 용접변형이 발생되는 포크리프트 트럭의 포크를 지지하는 캐리지의 포크바를 용접 전에 역변형을 일으켜 용접에 따르는 변형을 상쇄할 수 있게 하는 역변형 용접지그장치에 관한 것이다.The present invention is a relatively long length of the work device of the forklift truck and the lift bracket is welded to only one side to produce a reverse deformation before welding the fork bar of the carriage for supporting the fork of the forklift truck, the welding deformation occurs in the longitudinal direction before welding A reverse deformation welding jig device can be used to cancel the following deformation.

포크리프트 트럭은 포크에 중량물을 적재하고 화물캐리지 기능에 의해 마스트를 따라 승·하강하면서 화물을 이송할 수 있게 구성되어 있다.The forklift truck is configured to transfer heavy loads to the forks and move up and down along the mast by the cargo carriage function.

마스트를 따라 승·하강하는 포크를 지지하고 포크의 좌·우 간격을 조절할 수 있게 하는 캐리지는 마스트를 승·하강함에 따라 마스트와의 접촉을 피하기 위하여 직진도가 유지되어야 하나 캐리지를 구성하는 포크바는 수평으로 길게 연장되는 상·하 포크바와, 포크바 사이의 간격을 유지하기 위한 수직부재인 리프트 브라켓이 포크바의 일측면에만 다수 용접됨으로서 포크바는 용접작업에 의하여 일방향 으로 휘어지는 용접변형이 발생되어 직진도를 저하시킨다.Carriage, which supports the fork ascending and descending along the mast and adjusts the left and right spacing of the fork, should be kept straight to avoid contact with the mast as the mast is raised and lowered, but the fork bar constituting the carriage The horizontal and long fork bars extending horizontally, and the lift bracket, which is a vertical member for maintaining the gap between the fork bars are welded only on one side of the fork bar, the fork bar is bent in one direction by the welding operation, the welding deformation occurs To reduce the straightness.

따라서 포크바에 발생하는 용접변형을 교정하기 위하여는 용접작업 후 포크바에 발생한 변형의 역방향으로 프레스 등을 이용하여 압력을 가하여 용접변형을 교정하였으나, 교정작업에 많은 시간이 소요되고 교정이 균일하게 이루어지지 않는다는 어려움이 있었다.Therefore, in order to correct the welding deformation occurring in the fork bar, after welding, the welding deformation was corrected by applying pressure in the reverse direction of the deformation occurring in the fork bar by using a press, but the calibration work takes much time and the calibration is not uniform. There was a difficulty.

종래 용접변형을 방지하기 위한 방법으로는 KR등록실용신안제245812호(2001.10.17공고)에서는 도 1과 같이 레버블록(6)을 이용하여 용접 전에 용접부에 기계적인 인장력을 가하여 용접변형을 방지할 수 있게 한 지그를 제안한바 있었으나, 상기의 구성은 용접부위에 T바(4)와 앵글(5)을 용접하고 기계적인 인장력을 가하여 용접부위에 변형 및 수축을 최소화할 수 있게 한 것을 제안한바 있었으나 이는 용접부위의 변형을 50~60%정도 감소시킬 수 있을 뿐이었고, 또한 박판의 용접에만 적용이 가능하고 용접 후에는 T바와 앵글을 제거하여야 한다는 문제점이 있었다.As a method for preventing conventional welding deformation, KR Utility Model No. 245812 (announced on October 17, 2001) uses a lever block 6 as shown in FIG. 1 to prevent mechanical welding deformation by applying mechanical tensile force to the welding portion before welding. Although a jig was proposed, the above configuration suggested that the T bar 4 and the angle 5 were welded to the welded portion and mechanical strain applied to minimize deformation and shrinkage at the welded portion. Only 50-60% of the deformation of the site could be reduced, and it was also applicable only to welding of thin plates, and there was a problem in that the T bars and angles had to be removed after welding.

본 발명은 용접작업에 따르는 변형발생량을 예측하여 용접부재를 고정하는 용접지그에 용접변형이 발생하는 역방향으로 압력을 가하여 역변형을 일으켜 용접 후 압력을 제거하면 용접변형이 상쇄될 수 있게 하여 용접변형을 교정하는 작업을 생략할 수 있게 하는 지그장치를 제공하는 것을 목적으로 한다.The present invention is to anticipate the amount of deformation caused by the welding operation in the reverse direction in which the welding deformation occurs in the welding jig to fix the welding member to cause the reverse deformation to remove the pressure after welding welding deformation can be offset by welding It is an object of the present invention to provide a jig device that can omit the work of correcting the problem.

본 발명은 포크리프트 트럭의 포크를 지지하고 마스트를 따라 승ㆍ하강하며, 포크의 좌ㆍ우 간격을 조절할 수 있게 하는 캐리지의 포크바에 리프트 브라켓을 용접시 용접부재를 고정하는 지그장치에 있어서, 상ㆍ하부 프레임을 회전축으로 결합 고정하되, 상부프레임은 하부프레임에 대하여 회전축을 중심으로 45°각도의 범위 내에서 경사가능하게 하며, 상기 상부프레임의 리니어레일 단부에는 포크바의 단부를 고정하는 클램프 파워블록을 구비하고 포크바의 가운데에는 윗쪽으로 상승하는 유압실린더를 구비하여 용접작업에 따르는 변형량을 보정할 수 있는 역변형을 가할 수 있게 구성하는 것을 포함하며, 또한, 상기 유압실린더에 의한 포크바의 역변형량은 상기 포크바의 길이나 두께 및 용접개소에 따라 5~20mm범위 내에서 조정하며, 외력을 제거한 후 용접변형에 의한 포크바의 잔류변형량이 0.5mm를 초과하지 않도록 역변형량을 제어하는 것을 특징으로 하는 용접변형 보정용 역변형 지그장치를 제공한다.The present invention is a jig device for supporting the fork of the forklift truck, lifting and lowering along the mast, and fixing the welding member when welding the lift bracket to the fork bar of the carriage to adjust the left and right intervals of the fork, ㆍ The lower frame is fixed to the rotating shaft, but the upper frame is inclined in a range of 45 ° with respect to the lower axis with respect to the lower frame, the clamp power for fixing the end of the fork bar to the linear rail end of the upper frame And having a block and having a hydraulic cylinder rising upward in the center of the fork bar so as to be able to apply an inverse deformation to correct the amount of deformation caused by the welding operation. Reverse strain is adjusted within the range of 5-20mm according to the length or thickness of the fork bar and the welding location, and removes external force After the present invention provides a reverse deformation jig device for welding deformation correction, characterized in that for controlling the reverse deformation so that the residual deformation of the fork bar by welding deformation does not exceed 0.5mm.

본 발명은 포크리프트 트럭의 캐리지를 용접함에 있어서 용접변형의 발생을 방지하여 용접 후 교정작업을 생략할 수 있게 하여 생산성을 향상할 수 있게 하고, 용접작업에 따르는 직진도를 균일하게 확보할 수 있어 품질향상을 기할 수 있게 하는 효과가 있다.The present invention can prevent the generation of welding deformation in welding the carriage of the forklift truck, it is possible to omit the correction work after welding to improve the productivity, it is possible to ensure the straightness according to the welding work uniformly There is an effect to improve the quality.

이하에서 본 발명의 바람직한 실시 예에 대하여 첨부한 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명 용접변형 보정용 역변형지그장치의 평면도이며, 도 3은 본 발명 용접변형 보정용 역변형 지그장치의 정면도이고, 도 4는 본 발명 용접변형 보정용 역변형 지그장치의 측면도이며, 도 5는 본 발명이 적용되는 포크리프트 트럭의 캐리지의 사시도이다.Figure 2 is a plan view of the reverse deformation jig device for welding deformation correction of the present invention, Figure 3 is a front view of the reverse deformation jig device for welding deformation correction of the present invention, Figure 4 is a side view of the reverse deformation jig device for welding deformation correction of the present invention, Figure 5 Is a perspective view of a carriage of a forklift truck to which the present invention is applied.

도면에 도시한 바와 같이 본 발명은 하부프레임(11)의 상부에 회전축(12)에 의하여 전·후 45°각도로 회전가능하게 상부프레임(13)이 구비된다.As shown in the figure, the upper frame 13 is provided on the upper portion of the lower frame 11 so as to be rotated at an angle of 45 ° before and after by the rotating shaft 12.

상부프레임(13)은 상·하로 나란하게 리니어레일(14)을 구비하며, 리니어레일(14)의 양단부에는 포크바(15)의 양단부를 상부프레임(13)에 고정하는 클램프 파워블록(16)이 구비되고, 클램프 파워블록(16)의 아래쪽에는 파워실린더(17)가 구비되어 위쪽으로 압력을 가하여 포크바(15)를 고정할 수 있게 구성된다.The upper frame 13 has a linear rail 14 side by side up and down, and clamp power block 16 for fixing both ends of the fork bar 15 to the upper frame 13 at both ends of the linear rail 14. Is provided, the lower portion of the clamp power block 16 is provided with a power cylinder 17 is configured to be able to fix the fork bar 15 by applying pressure upwards.

클램프 파워블록(16)은 클램프 서브블록(18)에 쪼인트볼트(19)로 고정되는 클램프 블록(20)에 의하여 클램프 블록(25)을 고정하고, 클램프 블록(25)의 아래쪽에 포크바(15)의 단부를 삽입하여 클램프 파워블록(16)의 상승에 의하여 포크바(15)가 견고하게 고정될 수 있도록 구성된다.The clamp power block 16 fixes the clamp block 25 by the clamp block 20 fixed to the clamp bolt 19 by the clamp subblock 18, and the fork bar 15 below the clamp block 25. The fork bar 15 is firmly fixed by inserting the end of the clamp by the clamp power block 16.

클램프 파워블록(16)과 파워실린더(17)는 리니어레일(14)을 좌·우로 슬라이딩 가능하게 구성하여 용접부재인 포크바(15)의 규격변경에 대응할 수 있게 구성된다.The clamp power block 16 and the power cylinder 17 are configured to be slidable to the left and right of the linear rail 14 so as to cope with the change of the specification of the fork bar 15 as the welding member.

상부프레임(13)은 하부프레임(11)에 대하여 회전축(12)에 의하여 결합되고, 상부프레임(13)은 하부프레임(11)에 대하여 틸팅모터(21)와 기어박스(22)에 의하여 전·후 45°각도의 범위 내에서 경사질 수 있게 구성하여 지그에 장착된 용접부재의 용접작업을 용이하게 할 수 있게 구성된다.The upper frame 13 is coupled to the lower frame 11 by the rotation shaft 12, and the upper frame 13 is moved by the tilting motor 21 and the gearbox 22 with respect to the lower frame 11. After being configured to be inclined within a range of 45 ° angle is configured to facilitate the welding operation of the welding member mounted on the jig.

상부프레임(13)의 가운데에는 유압실린더(23)가 상부방향으로 작용하도록 구비되어 포크바(15)를 변형시킬 수 있도록 하여 포크바(15)에 리프트 브라켓(24)의 용접과정 중 용접열에 의하여 용접부재가 팽창 후 수축과정에서 용접열이 가해진 방향으로 휘어지는 것을 포크바(15)가 휘어지는 반대방향으로 유압실린더(23)의 압력으로 역변형을 일으켜 역변형을 제거하면 용접변형이 상쇄될 수 있게 구성된다.In the middle of the upper frame 13, the hydraulic cylinder 23 is provided to act in the upper direction to deform the fork bar 15 by welding heat during the welding process of the lift bracket 24 to the fork bar 15. If the welding member is bent in the direction in which the welding heat is applied during expansion and contraction, the reverse deformation is caused by the pressure of the hydraulic cylinder 23 in the opposite direction of the fork bar 15, so that the welding deformation can be canceled. It is composed.

유압실린더(23)에 의한 포크바(15)의 역변형량은 포크바(15)의 길이나 두께 및 용접개소에 따라 5~20mm범위 내에서 조정하며, 외력을 제거한 후 용접변형에 의한 포크바(15)의 잔류변형량이 0.5mm를 초과하지 않도록 역변형량을 제어한다.The reverse deformation amount of the fork bar 15 by the hydraulic cylinder 23 is adjusted within the range of 5 to 20 mm according to the length or thickness of the fork bar 15 and the welding location, and after removing the external force, the fork bar by the welding deformation ( The inverse strain is controlled so that the residual strain in 15) does not exceed 0.5 mm.

본 발명은 비교적 길이가 길고 두꺼운 용접부재에 일측면 용접작업시 적용이 가능하다.The present invention is applicable to one side welding operation on a relatively long and thick welding member.

도 1은 KR등록실용신안제245812호의 용접변형방지용 지그를 도시하는 도면1 is a view showing the welding deformation preventing jig of KR Utility Model No. 245812.

도 2는 본 발명 용접변형 보정용 역변형 지그장치의 평면도2 is a plan view of the reverse deformation jig device for welding deformation correction of the present invention.

도 3은 본 발명 용접변형 보정용 역변형 지그장치의 정면도3 is a front view of the reverse deformation jig device for welding deformation correction of the present invention.

도 4는 본 발명 용접변형 보정용 역변형 지그장치의 측면도Figure 4 is a side view of the reverse deformation jig device for welding deformation correction of the present invention

도 5는 본 발명이 적용되는 캐리지의 사시도5 is a perspective view of a carriage to which the present invention is applied

※ 도면의 주요부분에 대한 부호의 설명[Description of Drawings]

11. 하부프레임 12. 회전축11. Lower frame 12. Rotation axis

13. 상부프레임 14. 리니어레일13. Upper frame 14. Linear rail

15. 포크바 16. 클램프 파워블록15. Fork Bar 16. Clamp Power Block

17. 파워실린더 18. 클램프 서브블록17. Power cylinder 18. Clamp subblock

19. 쪼인트볼트 20. 클램프 블록19. Screw bolt 20. Clamp block

21. 틸팅모터 22. 기어박스21. Tilting motor 22. Gearbox

23. 유압실린더 24. 리프트 브라켓23. Hydraulic Cylinder 24. Lift Bracket

25. 클램프 블록25. Clamp Block

Claims (2)

포크리프트 트럭의 포크를 지지하고 마스트를 따라 승ㆍ하강하며, 포크의 좌ㆍ우 간격을 조절할 수 있게 하는 캐리지의 포크바에 리프트 브라켓을 용접시 용접부재를 고정하는 지그장치에 있어서,In the jig device for supporting the fork of the forklift truck, lifting and lowering along the mast, and fixing the welding member when welding the lift bracket to the fork bar of the carriage to adjust the left and right clearance of the fork, 상ㆍ하부 프레임(11, 13)을 회전축(12)으로 결합 고정하되, 상부프레임(13)은 하부프레임(11)에 대하여 회전축(12)을 중심으로 45°각도의 범위 내에서 경사가능하게 하며, 상기 상부프레임(13)의 리니어레일(14) 단부에는 포크바(15)의 단부를 고정하는 클램프 파워블록(16)을 구비하고 포크바(15)의 가운데에는 윗쪽으로 상승하는 유압실린더(23)를 구비하여 용접작업에 따르는 변형량을 보정할 수 있는 역변형을 가할 수 있게 구성하는 것을 포함하며,The upper and lower frames 11 and 13 are fixed to the rotary shaft 12, and the upper frame 13 is inclined with respect to the lower frame 11 in the range of 45 degrees with respect to the rotary shaft 12. At the end of the linear rail 14 of the upper frame 13, a clamp power block 16 is fixed to the end of the fork bar 15, and the hydraulic cylinder 23 rising upward in the center of the fork bar 15. It is configured to include a reverse deformation that can be provided to correct the amount of deformation caused by the welding operation, 또한, 상기 유압실린더에 의한 포크바(15)의 역변형량은 상기 포크바(15)의 길이나 두께 및 용접개소에 따라 5~20mm범위 내에서 조정하며, 외력을 제거한 후 용접변형에 의한 포크바(15)의 잔류변형량이 0.5mm를 초과하지 않도록 역변형량을 제어하는 것을 특징으로 하는 용접변형 보정용 역변형 지그장치.In addition, the reverse deformation amount of the fork bar 15 by the hydraulic cylinder is adjusted within the range of 5 ~ 20mm according to the length or thickness of the fork bar 15 and the welding location, after removing the external force fork bar by welding deformation The reverse deformation jig device for welding deformation correction, characterized in that the reverse deformation amount is controlled so that the residual deformation amount of (15) does not exceed 0.5 mm. 삭제delete
KR1020090115733A 2009-11-27 2009-11-27 Reverse-deformation jig device for weld deformation modification KR100961386B1 (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357751A (en) * 2011-09-06 2012-02-22 龙工（上海）挖掘机制造有限公司 Reversible deformation tailor-welding method for crawler beam of excavator
CN102601566A (en) * 2012-03-26 2012-07-25 无锡华联科技集团有限公司 Swing type reversible deformation welding fixture for bridge plate units
CN103406694A (en) * 2013-05-02 2013-11-27 湖北鹏远机械有限公司 Hydraulic forklift tool
CN103521984A (en) * 2013-10-23 2014-01-22 安徽合力股份有限公司 Assembly jig for forklift mast
CN103909373A (en) * 2014-04-15 2014-07-09 安徽安凯汽车股份有限公司 Positioning rectifying tool and method for engine mounting support
CN104014913A (en) * 2014-05-29 2014-09-03 安徽新荣钢构有限公司 Dual-purpose seat for welding and correcting steel structure
CN104175047A (en) * 2014-09-05 2014-12-03 合力叉车有限公司 Forklift overhead guard riveting and welding tool
CN104668871A (en) * 2015-03-24 2015-06-03 南车戚墅堰机车有限公司 Bogie welding and clamping device and clamping method
CN105618983A (en) * 2016-03-11 2016-06-01 中车齐齐哈尔车辆有限公司 Chassis assembling fixture
CN105834655A (en) * 2016-06-03 2016-08-10 意欧斯智能科技股份有限公司 Pairing tool for fork arm carrier of fork truck
CN106141544A (en) * 2016-08-19 2016-11-23 杭州港力液压机械有限公司 A kind of mover lifting device assembly welding frock and welding method thereof
CN107900567A (en) * 2017-11-29 2018-04-13 镇江倍斯特曼新材料研究有限公司 A kind of integrated automatic assembly equipment of assembly full weld
CN108080837A (en) * 2018-01-28 2018-05-29 中交第公路工程局有限公司 A kind of hydraulic pressure Anti-deformation device for welding cross bridge floor board
CN108422145A (en) * 2018-04-19 2018-08-21 北京石油化工学院 A kind of large size adjustable frame structure welding fixture
KR102210154B1 (en) 2019-10-04 2021-01-29 한국조선해양 주식회사 Apparatus for calibration of welding distortion
CN112276455A (en) * 2020-11-03 2021-01-29 安徽合力股份有限公司 Positioning tool for forklift full-freedom inner gantry oil cylinder base assembly
CN113275818A (en) * 2021-05-24 2021-08-20 宁波海博物流设备有限公司 Pallet truck fork assembly welding tool
CN114102024A (en) * 2021-12-15 2022-03-01 诺力智能装备股份有限公司 Automatic welding device for legs of logistics carrying vehicle

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KR100746475B1 (en) * 2003-06-10 2007-08-06 현대중공업 주식회사 Elastic bending system for reducing weld deformation in the fillet joint

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357751A (en) * 2011-09-06 2012-02-22 龙工（上海）挖掘机制造有限公司 Reversible deformation tailor-welding method for crawler beam of excavator
CN102601566A (en) * 2012-03-26 2012-07-25 无锡华联科技集团有限公司 Swing type reversible deformation welding fixture for bridge plate units
CN103406694A (en) * 2013-05-02 2013-11-27 湖北鹏远机械有限公司 Hydraulic forklift tool
CN103521984A (en) * 2013-10-23 2014-01-22 安徽合力股份有限公司 Assembly jig for forklift mast
CN103521984B (en) * 2013-10-23 2015-09-09 安徽合力股份有限公司 A kind of assembly jig of forklift door frame
CN103909373A (en) * 2014-04-15 2014-07-09 安徽安凯汽车股份有限公司 Positioning rectifying tool and method for engine mounting support
CN104014913A (en) * 2014-05-29 2014-09-03 安徽新荣钢构有限公司 Dual-purpose seat for welding and correcting steel structure
CN104175047A (en) * 2014-09-05 2014-12-03 合力叉车有限公司 Forklift overhead guard riveting and welding tool
CN104668871A (en) * 2015-03-24 2015-06-03 南车戚墅堰机车有限公司 Bogie welding and clamping device and clamping method
CN105618983B (en) * 2016-03-11 2017-07-07 中车齐齐哈尔车辆有限公司 Underframe group is to fixture
CN105618983A (en) * 2016-03-11 2016-06-01 中车齐齐哈尔车辆有限公司 Chassis assembling fixture
CN105834655A (en) * 2016-06-03 2016-08-10 意欧斯智能科技股份有限公司 Pairing tool for fork arm carrier of fork truck
CN106141544A (en) * 2016-08-19 2016-11-23 杭州港力液压机械有限公司 A kind of mover lifting device assembly welding frock and welding method thereof
CN107900567A (en) * 2017-11-29 2018-04-13 镇江倍斯特曼新材料研究有限公司 A kind of integrated automatic assembly equipment of assembly full weld
CN108080837A (en) * 2018-01-28 2018-05-29 中交第公路工程局有限公司 A kind of hydraulic pressure Anti-deformation device for welding cross bridge floor board
CN108422145A (en) * 2018-04-19 2018-08-21 北京石油化工学院 A kind of large size adjustable frame structure welding fixture
KR102210154B1 (en) 2019-10-04 2021-01-29 한국조선해양 주식회사 Apparatus for calibration of welding distortion
CN112276455A (en) * 2020-11-03 2021-01-29 安徽合力股份有限公司 Positioning tool for forklift full-freedom inner gantry oil cylinder base assembly
CN112276455B (en) * 2020-11-03 2024-05-28 安徽合力股份有限公司 Positioning tool for fork truck full-freedom inner portal frame oil cylinder base assembly
CN113275818A (en) * 2021-05-24 2021-08-20 宁波海博物流设备有限公司 Pallet truck fork assembly welding tool
CN113275818B (en) * 2021-05-24 2022-05-27 宁波海博物流设备有限公司 Pallet truck fork subassembly welding frock
CN114102024A (en) * 2021-12-15 2022-03-01 诺力智能装备股份有限公司 Automatic welding device for legs of logistics carrying vehicle
CN114102024B (en) * 2021-12-15 2023-10-03 诺力智能装备股份有限公司 Automatic welding device for logistics carrier legs

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