Clamp assembly for laser-electric arc hybrid welding

Abstract

The utility model relates to the technical field of welding fixtures, and discloses a fixture assembly for laser-arc hybrid welding, which comprises a base, vertical columns, web fixtures and telescopic fixtures are adjustably arranged on the base, two groups of web fixtures are arranged, webs to be welded are clamped between the two groups of web fixtures, a plurality of vertical columns are arranged, and the telescopic fixtures are arranged on the base. A wing plate clamp is arranged at the upper end of the stand column, and the telescopic clamp is used for supporting a wing plate to be welded so that the wing plate clamp can clamp the wing plate. When welding is needed, the web is vertically fixed between the two web clamps, then the height of the telescopic clamp is adjusted, the wing plate is supported by the telescopic clamp when the wing plate is placed on the web, then the wing plate is clamped by the wing plate clamp, fixing of the wing plate is achieved, and the technical requirements of laser-electric arc hybrid welding can be met. And the welding position is not changed all the time, the welding precision of T-shaped joint laser-electric arc hybrid welding can be effectively improved, welding deformation is controlled to be minimum, and therefore the welding efficiency and precision of the T-shaped joint are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a jig assembly for laser-arc hybrid welding. Background Art

[0002] In the shipbuilding industry, a large number of joints need to be connected, and more than half of the connections are T-shaped joints. A T-shaped joint is formed by welding a web and a flange. At present, the main welding methods include arc welding, laser beam welding, and laser-arc hybrid welding. However, arc welding has a slow welding speed and a large heat affected zone; in laser beam welding, the requirements for the gap between the web and the flange during assembly are very high and difficult to meet, and the weld toe fusion at the connection between the web and the flange is not good, resulting in a large stress concentration, which affects the quality of the welded joint.

[0003] Laser-arc hybrid welding technology can concentrate energy and has a small heat affected zone. At the same time, it has the advantages of fast welding speed and high welding efficiency, and is very suitable for welding T-shaped structures. However, laser-arc hybrid welding has certain requirements for the assembly accuracy of the web and the flange. Controlling welding deformation and achieving high assembly accuracy are the problems to be solved at present. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a jig assembly for laser-arc hybrid welding, which can ensure the assembly accuracy of the web and the flange and improve the welding efficiency and accuracy of T-shaped joints.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A jig assembly for laser-arc hybrid welding includes a base. A column, a web jig, and a telescopic jig are arranged on the base in a position-adjustable manner. There are two groups of web jigs, and the web to be welded is clamped between the two groups of web jigs. There are multiple columns, and a flange jig is arranged at the upper end of the column. The telescopic jig is used to support the flange to be welded, so that the flange jig clamps the flange.

[0007] Preferably, a plurality of threaded holes are provided on the base, and both the web jig and the telescopic jig are connected to the threaded holes through bolts;

[0008] The column is provided with an external thread, and the column is connected to the threaded hole.

[0009] Preferably, the web jig includes a mounting seat. A first connection hole connected to the threaded hole is provided at the bottom of the mounting seat. A fixing plate is arranged on the mounting seat in a height-adjustable manner, and a screw clamp is arranged on the fixing plate.

[0010] Preferably, an installation groove with an open upper end is provided on the mounting base, a locking bolt is provided on the side wall of the installation groove, the fixing plate is telescopically arranged in the installation groove and fixed by the locking bolt.

[0011] Preferably, the telescopic clamp includes a telescopic cylinder, a second connection hole connected to the threaded hole is provided at the bottom of the telescopic cylinder, a locking stud is provided on the outer wall of the telescopic cylinder, and a telescopic rod is telescopically inserted into the interior of the telescopic cylinder and fixed by the locking stud.

[0012] Preferably, the wing plate clamp includes an upper clamping block and a lower clamping block which are oppositely arranged, and the upper clamping block and the lower clamping block are connected by an adjusting bolt so that the upper clamping block and the lower clamping block move towards or away from each other.

[0013] Preferably, a guide plate is provided at one end of the upper clamping block, an adjusting block is provided on the guide plate, a guide groove corresponding to the guide plate is provided on the lower clamping block, and the adjusting bolt is threadedly connected to the lower clamping block and the adjusting block.

[0014] Preferably, a positioning groove extending along its length direction is provided on the base, and two groups of web clamps are respectively arranged on both sides of the positioning groove.

[0015] Preferably, there are two telescopic clamps, which are arranged in one-to-one correspondence with the two groups of web clamps.

[0016] Preferably, the cross section of the base is rectangular, and there are four columns, and the four columns are respectively arranged at the four corners of the base.

[0017] A fixture assembly for laser-arc hybrid welding according to an embodiment of the present invention, compared with the prior art, has the beneficial effects that: by arranging two groups of web clamps on the base, and at the same time arranging a plurality of columns on the base, and arranging a wing plate clamp at the upper end of the column, when welding is required, first vertically fix the web between the two groups of web clamps, and then adjust the height of the telescopic clamp so that when the wing plate is placed on the web, the telescopic clamp just supports the wing plate, and then make the wing plate clamp clamp the wing plate to realize the fixation of the wing plate. With the joint cooperation of the telescopic clamp, the wing plate clamp and the column, it can precisely ensure that the gap between the wing plate and the web meets the technical requirements of laser-arc hybrid welding, and during the welding process, it can ensure that the welding position never changes, achieving an ideal clamping effect, and can effectively improve the welding precision of the T-joint laser-arc hybrid welding and control the welding deformation to the minimum, thereby improving the welding efficiency and precision of the T-joint.

[0018] In addition, the column, the web clamp and the telescopic clamp are all adjustably arranged on the base, so as to be able to meet the assembly of T-joints of different sizes, thereby making the fixing assembly have universal applicability. Brief Description of the Drawings

[0019] Figure 1 This is a schematic structural diagram of the fixture assembly for laser-arc hybrid welding of the present utility model.

[0020] Figure 2 This is a schematic structural diagram of the web fixture of the present utility model.

[0021] Figure 3 This is a schematic structural diagram of the flange fixture of the present utility model.

[0022] Wherein: 1 - base, 11 - threaded hole, 12 - positioning groove, 2 - column, 3 - web fixture, 31 - mounting seat, 32 - first connection hole, 33 - fixing plate, 34 - screw clamp, 35 - locking bolt, 4 - telescopic fixture, 41 - telescopic cylinder, 42 - telescopic rod, 43 - locking stud, 5 - flange fixture, 51 - upper clamping block, 52 - lower clamping block, 53 - adjusting bolt, 54 - guide plate, 55 - adjusting block, 56 - guide groove, 6 - flange, 7 - web. Detailed Description of the Preferred Embodiment

[0023] The following further describes in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0024] As Figure 1 shown, a preferred embodiment of a fixture assembly for laser-arc hybrid welding of the present utility model can be used for welding T-joints, including a base 1, on which a column 2, a web fixture 3, and a telescopic fixture 4 are provided with adjustable positions. There are two groups of the web fixtures 3, and the web 7 to be welded is clamped between the two groups of the web fixtures 3. There are multiple columns 2, and a flange fixture 5 is provided at the upper end of the column 2. The telescopic fixture 4 is used to support the flange 6 to be welded, so that the flange fixture 5 clamps the flange 6. Preferably, the cross-section of the base 1 is rectangular, there are four columns 2, and the four columns 2 are respectively arranged at the four corners of the base 1, that is, there are four flange fixtures 5, which respectively clamp the four corners of the flange 6, ensuring uniform force on the flange 6 and achieving as much as possible to reduce the assembly gap between the flange 6 and the web 7.

[0025] The fixture assembly for laser-arc hybrid welding based on the above technical features is provided with two sets of web fixtures 3 on the base 1, and at the same time, a plurality of columns 2 are provided on the base 1. The upper end of the column 2 is provided with a flange fixture 5. When welding is required, first fix the web 7 vertically between the two sets of web fixtures 3, and then adjust the height of the telescopic fixture 4 so that when the flange 6 is placed on the web 7, the telescopic fixture 4 just supports the flange 6, and then clamp the flange 6 with the flange fixture 5 to realize the fixation of the flange 6. With the joint cooperation of the telescopic fixture 4, the flange fixture 5 and the column 2, it can precisely ensure that the gap between the flange 6 and the web 7 meets the technical requirements of laser-arc hybrid welding, and during the welding process, it can ensure that the welding position never changes, achieving an ideal clamping effect, effectively improving the welding accuracy of the T-joint laser-arc hybrid welding and controlling the welding deformation to the minimum, thereby improving the welding efficiency and accuracy of the T-joint.

[0026] In addition, the column 2, the web fixture 3 and the telescopic fixture 4 are all adjustably arranged on the base 1, so as to be able to meet the assembly of T-joints of different sizes, making the fixing assembly have universal applicability.

[0027] In this embodiment, the base 1 is provided with a plurality of threaded holes 11. The web fixture 3 and the telescopic fixture 4 are both connected to the threaded holes 11 through bolts. The column 2 is provided with an external thread, and the column 2 is connected to the threaded holes 11. That is, the web fixture 3, the telescopic fixture 4 and the column 2 can all be connected to the corresponding threaded holes 11 according to the specific size of the T-joint, so as to realize the position adjustment of the column 2, the web fixture 3 and the telescopic fixture 4 on the base 1. The threaded holes 11 can be arranged in a rectangular array.

[0028] Please refer to the appendix Figure 2, in this embodiment, the web clamp 3 includes a mounting base 31. A first connection hole 32 connected to the threaded hole 11 is provided at the bottom of the mounting base 31. The first connection hole 32 can be set as a round hole or an oval hole. When it is set as a round hole, the distance between the two round holes is the same as the distance between the two threaded holes 11. However, it is preferably set as an oval hole, which is convenient for the connection between the web clamp 3 and the base 1 and has a more flexible adjustment range. A fixing plate 33 is height-adjustably provided on the mounting base 31. A screw clamp 34 is provided on the fixing plate 33. The screw clamp 34 includes a screw that can be finely adjusted and a clamping block provided at the clamping end of the screw. After the web 7 is placed between two groups of web clamps 3, the screw is rotated to realize the horizontal movement of the clamping block, so that the web 7 is vertically fixed under the action of two opposite groups of web clamps 3, and the clamping position of the web 7 can be finely adjusted by tightening or loosening the screw. The clamping block is directly in contact with the web 7 and has elasticity, which can avoid damaging the web 7 during the clamping process.

[0029] The fixing plate 33 is height-adjustably arranged on the mounting base 31, so that the height can be adjusted according to different webs 7, thereby better assembling and fixing the web 7. Specifically, an installation groove with an open upper end is provided on the mounting base 31. A locking bolt 35 is provided on the side wall of the installation groove. The fixing plate 33 is telescopically arranged in the installation groove and fixed by the locking bolt 35. That is, when the height of the screw clamp 34 needs to be adjusted, first loosen the locking bolt 35, then move the fixing plate 33 up and down, and lock the locking bolt 35 after the fixing plate 33 moves to a determined position. The operation is simple and convenient.

[0030] , in this embodiment, the telescopic clamp 4 includes a telescopic cylinder 41. A second connection hole connected to the threaded hole 11 is provided at the bottom of the telescopic cylinder 41. The second connection hole has the same structure as the first connection hole 32 and can be a round hole or an oval hole. A locking stud is provided on the outer wall of the telescopic cylinder 41. A telescopic rod 42 is telescopically inserted into the telescopic cylinder 41 and fixed by the locking stud 43. When the height of the telescopic clamp 4 needs to be adjusted, loosen the locking stud 43, move the telescopic rod 42 up and down, and tighten the locking stud 43 after moving to a determined position. An elastic block can be provided at the upper end of the telescopic rod 42, which is in direct contact with the wing plate 6 to avoid damaging the wing plate 6.

[0031] Please refer to the appendix Figure 3, in this embodiment, the wing plate clamp 5 is a vise clamp. The wing plate 6 is pressed against the upper surface of the web 7 through the column 2 and the vise clamp, and a structure in which the two are in perpendicular contact with each other is formed to ensure that the wing plate 6 and the web 7 are perpendicular to each other and reduce the gap between the two. The wing plate clamp 5 includes an upper clamp block 51 and a lower clamp block 52 arranged oppositely. The upper clamp block 51 can move up and down along with the column 2, and can rotate relative to the column 2. A limit nut is provided on the column 2. When the position of the upper clamp block 51 is determined, the limit nut abuts against the upper surface of the upper clamp block 51. When clamping the wing plate 6, first insert the column 2 into the corresponding base threaded hole 11 according to the size of the T-joint, fix the height of the column 2 by tightening or loosening the column 2, and make the upper clamp block 51 press against the upper surface of the wing plate 6, so that the wing plate 6 and the web 7 form a structure in perpendicular contact with each other.

[0032] At the same time, in order to finely assemble the gap between the wing plate 6 and the web 7 and make the pressing of the wing plate 6 more reliable, the upper clamp block 51 and the lower clamp block 52 are connected by an adjusting bolt 53, so that the upper clamp block 51 and the lower clamp block 52 move towards or away from each other. Specifically, one end of the upper clamp block 51 is provided with a guide plate 54, the guide plate 54 is provided with an adjusting block 55, the lower clamp block 52 is provided with a guide groove 56 corresponding to the guide plate 54, the adjusting bolt 53 is threadedly connected to the lower clamp block 52 and the adjusting block 55, and the lower clamp block 52 can move up and down along the column 2. After the upper clamp block 51 abuts against the wing plate 6, rotate the adjusting bolt 53 to make the lower clamp block 52 move towards the upper clamp block 51 to clamp the wing plate 6 and reduce welding deformation. After welding is completed, rotate the adjusting bolt 53 in the opposite direction to make the lower clamp block 52 move away from the upper clamp block 51. At the same time, through the cooperation of the guide plate 54 and the guide groove 56, the moving accuracy of the lower clamp block 52 moving towards or away from the upper clamp block 51 can be guaranteed, and the precise clamping of the wing plate 6 can be guaranteed.

[0033] It is also possible that through holes are provided on both the upper clamp block 51 and the lower clamp block 52. The through holes are sleeved on the column 2, and the diameter of the through holes is larger than the outer diameter of the column 2. When clamping, first connect the column 2 to the base 1, then adjust the position of the upper clamp block 51 so that it abuts against the upper surface of the wing plate 6, then make the limit nut abut against the upper clamp block 51, and then adjust the position of the lower clamp block 52 through the adjusting bolt 53 to clamp the wing plate 6 with the upper and lower clamp blocks.

[0034] In addition, in order to facilitate the rotation of the column 2, a rotating rod can be provided at the upper end of the column 2. The rotating rod is perpendicular to the column 2. When rotating the column 2, just hold the rotating rod tightly, which is convenient for applying force.

[0035] In this embodiment, a positioning groove 12 extending along the length direction is provided on the base 1, and two sets of web clamps 3 are respectively arranged on both sides of the positioning groove 12. When fixing the web 7, first place the web 7 in the positioning groove 12, and then make the web clamp 3 clamp the web 7. This is not only convenient for operation, but also convenient for positioning the web 7, ensuring the accuracy of the web 7. There are two telescopic clamps 4, which are arranged in one-to-one correspondence with the two sets of web clamps 3, that is, one telescopic clamp 4 is arranged on one side of the positioning groove 12. Preferably, each set of web clamps 3 has two, and the telescopic clamp 4 is arranged between the two web clamps 3.

[0036] The following uses two specific embodiments to illustrate the technical effects of the present application:

[0037] Embodiment 1:

[0038] The web and the flange are made of 6mm AH36 steel. Among them, the specification of the web 7 is 400mm×300mm×6mm, and the specification of the flange 6 is 400mm×150mm×6mm;

[0039] The web 7 and the flange 6 are polished, cleaned, and dried;

[0040] Place the web clamp 3 horizontally on the corresponding position of the base 1 according to the size of the web 7, and fix the web clamp 3 by connecting the first connection hole 32 and the base threaded hole 11 with bolts;

[0041] Vertically place the web 7 in the positioning groove 12 of the base 1, adjust its placement position, lock the bolt 35 for positioning according to the height of the web, and at the same time, the screw clamp 34 fixes the web 7 by tightening or loosening;

[0042] Place the telescopic clamp 4 horizontally on the corresponding position of the base 1 according to the size of the flange 6, and fix it on the base 1;

[0043] Adjust the telescopic length of the telescopic clamp 4 according to the height of the web 7. At the same time, vertically place the flange 6 on the web 7, make the upper end surface of the telescopic clamp 4 fit the lower surface of the flange 6 to support it, and lock the telescopic length of the telescopic clamp 4 through the locking stud 43;

[0044] Place the column 2 in the areas of the four corners of the flange 6, insert it into the corresponding base threaded hole 11 for fixation, adjust the height of the column 2, and make the upper clamp block 51 of the flange clamp 5 press on the upper surface of the flange 6;

[0045] Adjust the adjusting bolt 53 on the flange clamp 5 to firmly clamp the upper and lower clamp blocks on the flange 6;

[0046] During the welding process, high-precision clamping and mechanical pressure can reduce welding deformation, ensure that the welding position does not change, and the welding efficiency is high.

[0047] Example Two:

[0048] The difference between this example and Example One is that the web 7 and the flange 6 are made of 8 mm thick AH36 steel, where the specification of the flange 6 is 300 mm × 100 mm × 8 mm, and the specification of the web 7 is 300 mm × 100 mm × 8 mm.

[0049] During the welding process after clamping, the welding deformation is small, the welding position does not change, and at the same time, the welding efficiency is high.

[0050] Example Three:

[0051] The difference between this example and Example One is that the web 7 is made of 8 mm thick AH36 steel, and the flange 6 is made of 6 mm thick AH36 steel, where the specification of the flange 6 is 300 mm × 100 mm × 6 mm, and the specification of the web 7 is 300 mm × 100 mm × 8 mm.

[0052] After clamping, the welding position has never changed during the welding process, that is, this application is applicable to clamping of webs 7 and flanges 6 with different thicknesses, and the clamping effect is good.

[0053] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A fixture assembly for laser-arc hybrid welding, characterized in that: It includes a base, on which a column, a web clamp and a telescopic clamp are provided with adjustable positions. There are two groups of the web clamps, and the web to be welded is clamped between the two groups of web clamps. There are multiple columns, and wing plate clamps are provided at the upper ends of the columns. The telescopic clamp is used to support the wing plate to be welded so that the wing plate clamp can clamp the wing plate.

2. The jig assembly for laser-arc hybrid welding according to claim 1, characterized in that: A plurality of threaded holes are provided on the base, and both the web clamp and the telescopic clamp are connected to the threaded holes through bolts; External threads are provided on the column, and the column is connected to the threaded hole.

3. The jig assembly for laser-arc hybrid welding according to claim 2, wherein: The web clamp includes a mounting seat, a first connection hole connected to the threaded hole is provided at the bottom of the mounting seat, a fixing plate is provided on the mounting seat with adjustable height, and a screw clamp is provided on the fixing plate.

4. The jig assembly for laser-arc hybrid welding according to claim 3, characterized in that: An installation groove with an open upper end is provided on the mounting seat, a locking bolt is provided on the side wall of the installation groove, and the fixing plate is telescopically arranged in the installation groove and fixed by the locking bolt.

5. The jig assembly for laser-arc hybrid welding according to claim 2, characterized in that: The telescopic clamp includes a telescopic cylinder, a second connection hole connected to the threaded hole is provided at the bottom of the telescopic cylinder, a locking stud is provided on the outer wall of the telescopic cylinder, and a telescopic rod is telescopically inserted into the interior of the telescopic cylinder and fixed by the locking stud.

6. The jig assembly for laser-arc hybrid welding according to any one of claims 1-5, characterized in that: The wing plate clamp includes an upper clamping block and a lower clamping block arranged oppositely, and the upper clamping block and the lower clamping block are connected by an adjusting bolt so that the upper clamping block and the lower clamping block can move towards or away from each other.

7. The jig assembly for laser-arc hybrid welding according to claim 6, characterized in that: A guide plate is provided at one end of the upper clamping block, an adjusting block is provided on the guide plate, a guide groove corresponding to the guide plate is provided on the lower clamping block, and the adjusting bolt is threadedly connected to the lower clamping block and the adjusting block.

8. The fixture assembly for laser-arc hybrid welding according to any one of claims 1-5, characterized in that: A positioning groove extending along its length direction is provided on the base, and the two groups of web clamps are respectively arranged on both sides of the positioning groove.

9. The fixture assembly for laser-arc hybrid welding according to any one of claims 1-5, characterized in that: There are two telescopic clamps, which are arranged in one-to-one correspondence with the two groups of web clamps.

10. The jig assembly for laser-arc hybrid welding according to any one of claims 1-5, characterized in that: The cross-section of the base is rectangular, there are four columns, and the four columns are respectively arranged at the four corners of the base.

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