CN111136394B - Two-way welding jig that laser welding used - Google Patents

Two-way welding jig that laser welding used Download PDF

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Publication number
CN111136394B
CN111136394B CN202010104342.3A CN202010104342A CN111136394B CN 111136394 B CN111136394 B CN 111136394B CN 202010104342 A CN202010104342 A CN 202010104342A CN 111136394 B CN111136394 B CN 111136394B
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China
Prior art keywords
mounting
welding
plate
rod
sliding
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CN202010104342.3A
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CN111136394A (en
Inventor
张新戈
戴華仁
刘道昕
王文权
杜明
王苏煜
吴大振
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Jilin University
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Jilin University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment
    • B23K26/703Cooling arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs

Abstract

The invention discloses a two-way welding fixture for laser welding, relates to the field of welding tool fixtures, and provides the following scheme aiming at the problem that the welding piece product cannot meet the requirements of process and welding quality due to poor positioning, clamping and assembling effects of laser welding of pipeline parts in the conventional two-way welding fixture, which comprises a frame and an installation plate, wherein the upper surface of the installation plate is respectively and fixedly provided with a positioning column and a supporting block which are uniformly distributed, the positioning columns and the supporting blocks are provided with weldment bodies, the upper surfaces of the mounting plates are uniformly distributed and respectively fixedly provided with a first mounting seat and a second mounting seat, one side of each of the two groups of first mounting seats is fixedly provided with a first air cylinder along the horizontal direction, a first ejector rod is slidably mounted inside the first air cylinder and penetrates through the outer wall of one side of the first mounting seat. The invention has novel structure, simple operation, quick use and is suitable for popularization.

Description

Two-way welding jig that laser welding used
Technical Field
The invention relates to the field of welding tool fixtures, in particular to a bidirectional welding fixture for laser welding.
Background
Laser welding is an efficient, high quality, precise welding method that utilizes a high energy density laser beam as a heat source. The laser welding has the advantages of energy concentration, large depth-to-width ratio of a welding line, small heating area, small deformation of a heat affected zone and a welded part, no mechanical contact, easy realization of flexible automation and the like. In the automobile industry, laser welding is applied to welding of automobile body frame structures, automobile body panels and parts, so that the weight of an automobile body can be effectively reduced, the material consumption is saved, the equipment precision is improved, the production efficiency is improved, and the cost is reduced. In addition, the laser welding has the characteristics of easy integration, automation, flexibility and the like, is suitable for welding large-scale structural parts, and in the aerospace manufacturing industry, the laser welding replaces the traditional riveting to manufacture the aluminum alloy fuselage, so that the weight of the aircraft fuselage is reduced, the welding quality and the mechanical performance of joints are improved, and the production period is effectively shortened. With the development of high power lasers, laser welding of medium and thick plates has been vigorously developed in the shipbuilding industry. Therefore, the laser welding has wide application prospect in the industrial field.
When parts of pipeline structures are subjected to laser welding, the welding force is required to be symmetrical, and the temperature difference between two sides of a welding part is not too large, so that the requirements of the process and the welding quality can be met by adopting a bidirectional welding mode. The bidirectional welding of the pipeline structure needs a proper welding fixture, but in the existing bidirectional welding fixture, the laser welding workpiece cannot be well positioned, clamped and assembled, so that the final laser welding product cannot meet the requirements of the process and the welding quality.
Disclosure of Invention
The invention provides a bidirectional welding fixture for laser welding, which solves the problem that a weldment product cannot meet the requirements of process and welding quality due to poor positioning, clamping and assembling effects of laser welding of pipeline parts in the conventional bidirectional welding fixture.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bidirectional welding fixture for laser welding comprises a frame and a mounting plate, wherein positioning columns and supporting blocks are fixedly mounted on the upper surface of the mounting plate respectively, the positioning columns and the supporting blocks are uniformly distributed, welding part bodies are placed on the positioning columns and the supporting blocks, a first mounting seat and a second mounting seat are fixedly mounted on the upper surface of the mounting plate respectively and uniformly distributed, a first air cylinder is fixedly mounted on one side of each of two groups of first mounting seats along the horizontal direction, a first ejector rod is slidably mounted in each first air cylinder and penetrates through the outer wall of one side of each first mounting seat, supporting frames are fixedly mounted on the outer wall of one side, close to the welding part bodies, of each first mounting seat in a symmetrical distribution mode, movable plates are rotatably mounted in the two groups of supporting frames, a movable frame is rotatably mounted on one side of each movable plate, and the bottom end of each movable frame is rotatably connected with one end of each, a first connecting rod is placed at the top end of the movable frame, a convex pressing plate is fixedly installed at the bottom end of the first connecting rod, a second air cylinder is fixedly installed on one side of each of two groups of second installation seats along the vertical direction, a second ejector rod is slidably installed in each of the two groups of second air cylinders, a connecting plate is rotatably installed at the top end of each second ejector rod, a second connecting rod is slidably installed on one side of the connecting plate, a concave pressing plate is fixedly connected at the bottom end of each second connecting rod, supporting rods are fixedly installed on the upper surface of the installation plate in a symmetrical distribution manner, a rotating rod is rotatably installed at the top end of each supporting rod, a lifting rope is fixedly installed at the lower end of each rotating rod, an auxiliary positioning ring is fixedly connected with the lifting rope, sliding support plates are fixedly installed on one side of the upper surface of the installation, two sets of slidable mounting has the slidable mounting platform on the slide rail pole, the last fixed surface of slidable mounting platform installs the air pump, and one side fixed mounting of slidable mounting platform has flexible ejector pin, flexible ejector pin runs through the slip backup pad, and the one end fixed mounting of flexible ejector pin has the pneumatic cylinder, the pneumatic cylinder with the mounting panel is fixed connection, the jet-propelled pipe of output fixedly connected with of air pump.
Preferably, the frame with the mounting panel passes through hexagonal screw fixed connection, and the bottom of frame is evenly distributed and has seted up the installation screw hole.
Preferably, the first connecting rod and the movable frame, the connecting plate and the second ejector rod and the second connecting rod are fixedly connected through nut caps.
Preferably, the mounting plate is in a completely horizontal state along a horizontal line direction.
Preferably, the upper surface of the mounting plate is provided with a sliding chute matched with the sliding mounting table.
Preferably, the concave pressing plate and the convex pressing plate are fixedly provided with rubber cushions on the sides contacting with the weldment body.
The invention has the beneficial effects that:
1. in the device, at first be provided with reference column and supporting shoe to reference column and supporting shoe all match each other with the weldment body, through place the weldment body on reference column and supporting shoe, and extrude downwards through protruding type clamp plate, can push down the weldment body of one side fast, and keep the weldment body to present vertical state.
2. In the device, be provided with the assistance-localization real-time structure, after the weldment body of one side is fixed, place the weldment body of opposite side on the weldment body that is fixed, then through assistance-localization real-time with two weldment body sleeve posts, keep two weldments to be in concentric circles and with planar device, then fix the two through concave type clamp plate, so in welding process, can keep welded size deviation can not appear, convenient to use.
3. Be provided with pneumatic cylinder, slidable mounting platform and air pump in the device, in welding process, the pneumatic cylinder is along with the removal of welding rifle and progressively starts to promote the removal of slidable mounting platform through flexible ejector pin, and the air pump begins work, not only can play the effect of clearance welding seam, also can play the effect of cooling, the staff of being convenient for observes welding process.
To sum up, the device is provided with down location structure and auxiliary positioning structure respectively, can play the fixed effect of quick location, has also guaranteed welding process's welding precision simultaneously to and can play the effect of clearing up the welding seam and carrying out cooling treatment to the welding seam, the practicality is high, easy operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a first viewing angle according to the present invention.
Fig. 3 is a structural diagram of a second viewing angle according to the present invention.
Fig. 4 is a schematic structural diagram of the first mounting seat of the present invention.
FIG. 5 is a schematic structural view of a structure of the welding slag of the present invention.
Fig. 6 is a schematic structural diagram of a second mounting seat of the present invention.
Reference numbers in the figures: the device comprises a frame 1, a mounting plate 2, an auxiliary positioning ring 3, a rotating rod 4, a lifting rope 5, a supporting rod 6, a positioning column 7, a supporting block 8, a first mounting seat 9, a second mounting seat 10, a first ejector rod 11, a first cylinder 12, a supporting frame 13, a movable plate 14, a first connecting rod 15, a convex pressing plate 16, a movable frame 17, a slide rail rod 18, an air injection pipe 19, an air pump 20, a sliding mounting table 21, a telescopic ejector rod 22, a hydraulic cylinder 23, a second cylinder 24, a second ejector rod 25, a connecting plate 26, a concave pressing plate 27, a second connecting rod 28 and a sliding supporting plate 29.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a two-way welding fixture for laser welding comprises a frame 1 and a mounting plate 2, wherein the upper surface of the mounting plate 2 is respectively and fixedly provided with a positioning column 7 and a supporting block 8, the positioning column 7 and the supporting block 8 are uniformly distributed, welding parts bodies are placed on the positioning column 7 and the supporting block 8, the upper surface of the mounting plate 2 is respectively and fixedly provided with a first mounting seat 9 and a second mounting seat 10 which are uniformly distributed, one side of each of two groups of first mounting seats 9 is respectively and fixedly provided with a first air cylinder 12 along the horizontal direction, a first ejector rod 11 is slidably installed in the first air cylinder 12, the first ejector rod 11 penetrates through the outer wall of one side of the first mounting seat 9, the outer wall of one side of the first mounting seat 9 close to the welding parts bodies is symmetrically distributed and fixedly provided with a supporting frame 13, a movable plate 14 is rotatably installed in the two, the bottom end of the movable frame 17 is rotatably connected with one end of a first ejector rod 11, a first connecting rod 15 is arranged at the top end of the movable frame 17, a convex pressing plate 16 is fixedly arranged at the bottom end of the first connecting rod 15, second air cylinders 24 are fixedly arranged on one sides of two groups of second mounting seats 10 along the vertical direction, second ejector rods 25 are slidably arranged in the two groups of second air cylinders 24, a connecting plate 26 is rotatably arranged at the top end of each second ejector rod 25, a second connecting rod 28 is slidably arranged on one side of the connecting plate 26, concave pressing plates 27 are fixedly connected at the bottom end of the second connecting rod 28, supporting rods 6 are fixedly arranged on the upper surface of the mounting plate 2 in a symmetrical distribution manner, a rotating rod 4 is rotatably arranged at the top end of each supporting rod 6, lifting ropes 5 are fixedly arranged on the lower surface of one end of the rotating rod 4, auxiliary positioning rings 3, the middle positions of the two groups of sliding support plates 29 are symmetrically and fixedly provided with sliding rail rods 18, the two groups of sliding rail rods 18 are slidably provided with a sliding installation table 21, the upper surface of the sliding installation table 21 is fixedly provided with an air pump 20, one side of the sliding installation table 21 is fixedly provided with a telescopic ejector rod 22, the telescopic ejector rod 22 penetrates through the sliding support plates 29, one end of the telescopic ejector rod 22 is fixedly provided with a hydraulic cylinder 23, the hydraulic cylinder 23 is fixedly connected with the installation plate 2, the output end of the air pump 20 is fixedly connected with an air injection pipe 19, the frame 1 and the installation plate 2 are fixedly connected through hexagonal screws, the bottom end of the frame 1 is uniformly distributed and provided with installation screw holes, the first connecting rod 15 is fixedly connected with the movable frame 17, the connecting plate 26 is fixedly connected with the second ejector rod 25 and the second connecting rod 28 through nut caps, the installation plate 2 is in a completely horizontal state along the horizontal, the concave pressing plate 27 and one side of the convex pressing plate 16 contacting with the weldment body are both fixedly provided with rubber cushions.
Example (b): when the welding operation is started, the whole device is fixed at a specific place through mounting screw holes at the bottom of the frame 1, then the welding part body passes through the positioning columns 7 and the supporting blocks 8, then the first air cylinders 12 on the two groups of second mounting seats 10 are started, the first ejector rods 11 move and drive the movable frames 17 to move, the movable frames 17 can realize the loosening and pressing of the convex pressing plates 16 under the action of the supporting frames 13, in the fixing process, the convex pressing plates 16 press downwards to fix the welding part body, the welding part body can be vertically placed and kept vertical, then the other half of the welding part body is placed above the convex pressing plates, then the cylinder auxiliary positioning rings 3 fix the two half of the welding part body, then the second air cylinders 24 on the two groups of first mounting seats 9 are started to drive the second ejector rods 25 to ascend or descend, so as to realize the pressing or loosening of the concave pressing plates 27, in the fixing process, concave type clamp plate 27 pushes down, the weldment body is fixed, then withdraw the auxiliary positioning ring 3, in welding process, pneumatic cylinder 23 begins to move along with welded functioning speed, flexible ejector pin 22 drives sliding installation platform 21 and moves on slide rail pole 18, air pump 20 begins to start simultaneously, and clear up and the cooling effect through jet-propelled pipe 19 to the welding seam in welding process, after welding operation, first cylinder 12 and second cylinder 24 resume to initial position in proper order, the weldment loosens, take out the weldment, the operation is ended.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (3)

1. A bidirectional welding fixture for laser welding comprises a frame (1) and a mounting plate (2) and is characterized in that a positioning column (7) and a supporting block (8) are fixedly mounted on the upper surface of the mounting plate (2) respectively, the positioning column (7) and the supporting block (8) are uniformly distributed, a weldment body is placed on the positioning column (7) and the supporting block (8), a first mounting seat (9) and a second mounting seat (10) are fixedly mounted on the upper surface of the mounting plate (2) in a uniformly distributed manner respectively, a first air cylinder (12) is fixedly mounted on one side of each of the two groups of first mounting seats (9) along the horizontal direction, a first ejector rod (11) is slidably mounted inside the first air cylinder (12), the first ejector rod (11) penetrates through the outer wall of one side of the first mounting seat (9), and a support frame (13) which is symmetrically distributed is fixedly mounted on the outer wall of one side of the first mounting seat (9) close to the weldment body, two sets of fly leaf (14) are installed in the inside rotation of support frame (13), one side of fly leaf (14) is rotated and is installed adjustable shelf (17), adjustable shelf (17) bottom with the one end of first ejector pin (11) is rotated and is connected, and the top of adjustable shelf (17) has placed head rod (15), the bottom fixed mounting of head rod (15) has protruding type clamp plate (16), two sets of one side of second mount pad (10) all has second cylinder (24) along vertical direction fixed mounting, two sets of inside slidable mounting of second cylinder (24) has second ejector pin (25), the top of second ejector pin (25) is rotated and is installed connecting plate (26), one side slidable mounting of connecting plate (26) has second connecting rod (28), the bottom fixedly connected with concave type clamp plate (27) of second connecting rod (28), the upper surface of mounting panel (2) is symmetric distribution fixed mounting has bracing piece (6), the top of bracing piece (6) is rotated and is installed rotary rod (4), the one end lower fixed surface of rotary rod (4) installs lifting rope (5), lifting rope (5) fixedly connected with assistance-localization real-time ring (3), upper surface one side of mounting panel (2) is symmetric distribution fixed mounting has sliding support board (29), two sets of sliding support board (29) intermediate position is symmetric distribution fixed mounting has slide rail pole (18), two sets of sliding support board (18) go up slidable mounting has sliding mounting platform (21), the upper surface fixed mounting of sliding mounting platform (21) has air pump (20), and one side fixed mounting of sliding mounting platform (21) has flexible ejector pin (22), flexible ejector pin (22) run through sliding support board (29), a hydraulic cylinder (23) is fixedly mounted at one end of the telescopic ejector rod (22), the hydraulic cylinder (23) is fixedly connected with the mounting plate (2), and an air injection pipe (19) is fixedly connected with the output end of the air pump (20); the frame (1) is fixedly connected with the mounting plate (2) through hexagonal screws, and mounting screw holes are uniformly distributed at the bottom end of the frame (1); the first connecting rod (15) is fixedly connected with the movable frame (17), the connecting plate (26) is fixedly connected with the second ejector rod (25) and the second connecting rod (28) through nut caps; the upper surface of the mounting plate (2) is provided with a sliding chute matched with the sliding mounting table (21).
2. A bi-directional welding fixture for laser welding according to claim 1, characterized in that the mounting plate (2) is in a substantially horizontal position in the horizontal direction.
3. A two-way welding jig for laser welding according to claim 1, wherein rubber cushions are fixedly mounted to both sides of the female pressure plate (27) and the male pressure plate (16) contacting the weldment body.
CN202010104342.3A 2020-02-20 2020-02-20 Two-way welding jig that laser welding used Active CN111136394B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010104342.3A CN111136394B (en) 2020-02-20 2020-02-20 Two-way welding jig that laser welding used

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CN202010104342.3A CN111136394B (en) 2020-02-20 2020-02-20 Two-way welding jig that laser welding used

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CN111136394B true CN111136394B (en) 2021-03-30

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114055071B (en) * 2022-01-14 2022-03-25 海门金佰恒不锈钢制品有限公司 Clamp for welding iron pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204843264U (en) * 2015-06-18 2015-12-09 象山普精金属制品厂 Welding seam synchronous water -cooling laser -beam welding machine construct
CN105562906A (en) * 2016-02-20 2016-05-11 潍柴重机股份有限公司 Round pipe straight-seam welding fixture and deformation control method for round pipe straight-seam welding
CN206455323U (en) * 2017-02-15 2017-09-01 荆州市先隆包装制品有限公司 A kind of ladle body Straight seam welding machine
US10052720B2 (en) * 2014-09-17 2018-08-21 Magna International Inc. Method of laser welding coated steel sheets with addition of alloying elements
CN208644456U (en) * 2018-07-12 2019-03-26 温州泰昌铁塔制造有限公司 A kind of steel tube tower supervisor joint close weldedization equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10052720B2 (en) * 2014-09-17 2018-08-21 Magna International Inc. Method of laser welding coated steel sheets with addition of alloying elements
CN204843264U (en) * 2015-06-18 2015-12-09 象山普精金属制品厂 Welding seam synchronous water -cooling laser -beam welding machine construct
CN105562906A (en) * 2016-02-20 2016-05-11 潍柴重机股份有限公司 Round pipe straight-seam welding fixture and deformation control method for round pipe straight-seam welding
CN206455323U (en) * 2017-02-15 2017-09-01 荆州市先隆包装制品有限公司 A kind of ladle body Straight seam welding machine
CN208644456U (en) * 2018-07-12 2019-03-26 温州泰昌铁塔制造有限公司 A kind of steel tube tower supervisor joint close weldedization equipment

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