Detachable and adjustable laser welding thick plate clamp

Abstract

The utility model discloses a laser welding thick plate clamp capable of being disassembled and adjusted, which belongs to the field of laser welding, and comprises a welding bottom plate, a welding bead bottom plate and a clamping mechanism, a groove is arranged on the welding bottom plate, the welding bead bottom plate is arranged on the welding bottom plate, and the clamping mechanism is arranged on the welding bottom plate. The clamping mechanism comprises a movable spiral pressing assembly and a spiral pressing assembly, the movable spiral pressing assembly and the spiral pressing assembly are both arranged on the welding bottom plate, the movable spiral pressing assembly is used for moving to conduct spiral pressing on a thick plate, and the spiral pressing assembly is used for fixing and spirally pressing the thick plate. A plurality of grooves are formed in the welding bottom plate, so that the flexibility of the welding clamp is improved, welding warping caused by thermal expansion and cold contraction in the welding process can be controlled, welding slag on the welding bead bottom plate is difficult to clean after multiple times of welding, the welding bead bottom plate can be replaced, and meanwhile, the size of the welding bead can be changed so that the welding clamp can adapt to welding base materials of different sizes.

Description

Technical Field

[0001] The utility model relates to the field of laser welding, and more particularly to a detachable and adjustable laser welding thick plate fixture. Background Art

[0002] Laser welding is a modern welding method that uses a high-energy laser beam as a heat source to melt and join materials. Compared to traditional welding techniques, laser welding offers advantages such as high precision, high speed, and low thermal impact. It is widely used in the automotive, aerospace, electronics, and medical equipment industries.

[0003] Existing laser thick plate welding fixtures are prone to warping and loosening of the base metal during welding, resulting in poor weld formation and reduced weld quality. The fixtures are also difficult to move when welding with base metals of varying sizes. Prolonged welding can also lead to the formation of slag on the weld bead, which is difficult to clean. The slag can also easily become entangled in the weld, reducing weld quality.

[0004] Therefore, it is necessary to provide a detachable and adjustable laser welding thick plate fixture to solve the above problems. Utility Model Content

[0005] The utility model provides a detachable and adjustable laser welding thick plate fixture, which can improve the problems of welding warping and loosening of base material that are easy to occur during laser welding of thick plates in the related art.

[0006] An embodiment of the present application provides a detachable and adjustable laser welding thick plate clamp, including a welding base plate, a weld base plate and a clamping mechanism, wherein a groove is provided on the welding base plate, the weld base plate is arranged on the welding base plate, and the clamping mechanism includes a movable spiral clamping assembly and a spiral clamping assembly, the movable spiral clamping assembly and the spiral clamping assembly are both arranged on the welding base plate, and the movable spiral clamping assembly is used to move the thick plate for spiral clamping, and the spiral clamping assembly is used to fix the spiral clamping of the thick plate.

[0007] The above-mentioned technical solution in the embodiment of the present application has at least the following technical effects: when the staff needs to perform laser welding on the thick plate, the staff first places the thick plate to be welded on the welding base plate, and then the staff uses the moving spiral pressing assembly to spirally press and fix the four corners of the thick plate, and then the staff uses the spiral pressing assembly to press and fix the thick plate, so that the thick plate is firmly fixed on the welding base plate.

[0008] An embodiment of the present application provides a detachable and adjustable laser welding thick plate fixture, which includes a welding base plate, a groove, a weld bead base plate, a movable spiral clamping assembly, and a spiral clamping assembly. The flexibility of the welding fixture is improved by opening several grooves in the welding base plate. The application of the spiral clamp can control the welding warping caused by thermal expansion and contraction during the welding process. Since the welding slag on the weld bead base plate is difficult to clean after multiple welding, it can be achieved by replacing the weld bead base plate. At the same time, the weld bead size can be changed to adapt to welding base materials of different sizes.

[0009] In some embodiments, the grooves are arranged in parallel and perpendicular to the welding direction, and a plurality of grooves are provided.

[0010] In some embodiments, the weld bead base plate is in an I-shape, with a hole in each of the four corners, and the weld base plate is bolted to both sides of the weld bead base plate.

[0011] In some embodiments, the first movable spiral pressing assembly includes a first fulcrum bolt, a first fixed block, a first fixed bolt and a first nut, the first fixed block is provided with a first through hole and a second through hole, the first fixed block is threadedly connected to the first fulcrum bolt and the first fixed bolt, the first fulcrum bolt is slidably connected to the groove, the first fulcrum bolt passes through the first through hole and is threadedly connected to the first nut, and the first fixing bolt is threadedly connected to the first fixed block through the second through hole.

[0012] In some embodiments, the spiral compression assembly includes a second fulcrum bolt, a second fixed block, a second fixed bolt and a second nut, a third through hole is opened on the second fixed block, one end of the second fulcrum bolt is slidably connected in the groove, the other end of the second fulcrum bolt passes through the third through hole and is threadedly connected to the second nut, the second fixed block is threadedly connected to the first fulcrum bolt, and the second fixing bolt is threadedly connected to the second fixed block through the third through hole.

[0013] In some embodiments, the threaded ends of the first fulcrum bolt and the second fulcrum bolt face away from the welding base plate, and the threaded ends of the first fixing bolt and the second fixing bolt face the welding base plate.

[0014] In some embodiments, the movable spiral compression assembly and the spiral compression assembly are provided in plurality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a detachable and adjustable laser welding thick plate fixture of the utility model;

[0016] Figure 2This is a schematic structural diagram of a welding base plate of a detachable and adjustable laser welding thick plate fixture of the present invention;

[0017] Figure 3 This is a schematic structural diagram of a movable spiral pressing assembly of a detachable and adjustable laser welding thick plate fixture of the present invention;

[0018] Figure 4 This is a schematic structural diagram of a spiral pressing assembly of a detachable and adjustable laser welding thick plate fixture of the present invention.

[0019] Description of the numbers in the figure:

[0020] 1. Welding base plate; 2. Groove; 3. Welding base plate; 4. Clamping mechanism; 41. Mobile spiral clamping assembly; 411. First fulcrum bolt; 412. First fixing block; 413. First fixing bolt; 414. First nut; 42. Screw clamping assembly; 421. Second fulcrum bolt; 422. Second fixing block; 423. Second fixing bolt; 424. Second nut; 5. First through hole; 6. Second through hole; 7. Third through hole. DETAILED DESCRIPTION

[0021] Existing laser thick plate welding fixtures are prone to warping and loosening of the base metal during welding, resulting in poor weld formation and reduced weld quality. The fixtures are also difficult to move when welding with base metals of varying sizes. Prolonged welding can also lead to the formation of slag on the weld bead, which is difficult to clean. The slag can also easily become entangled in the weld, reducing weld quality.

[0022] Based on this, in order to improve the problems of welding warping and loosening of base material that are prone to occur during thick plate laser welding in related technologies.

[0023] See also Figure 1 and Figure 4 A detachable and adjustable laser welding thick plate fixture includes a welding base plate 1, a weld base plate 3 and a clamping mechanism 4, wherein the welding base plate 1 is provided with a groove 2, the weld base plate 3 is arranged on the welding base plate 1, and the clamping mechanism 4 includes a movable spiral pressing component 41 and a spiral pressing component 42, the movable spiral pressing component 41 and the spiral pressing component 42 are both arranged on the welding base plate 1, and the movable spiral pressing component 41 is used to move the thick plate for spiral pressing, and the spiral pressing component 42 is used to fix the spiral pressing of the thick plate.

[0024] In this arrangement, the movable screw presser moves in the groove 2 to fix and clamp the parent material. The groove 2 is designed symmetrically on both sides of the weld. The movable screw presser can move in the slotted fixing block to extend the fixing range. The screw presser provides downward pressing force for the welded parent material on both sides of the weld.

[0025] Optionally, in some embodiments, see Figure 1-Figure 3 , the grooves 2 are arranged in parallel and perpendicular to the welding direction, and there are multiple grooves 2, the weld base plate 3 is in an I-shape, with a hole in each of the four corners, and the weld base plate 3 is bolted on both sides with the welding base plate 1, the first movable spiral pressing assembly 41 includes a first fulcrum bolt 411, a first fixing block 412, a first fixing bolt 413 and a first nut 414, the first fixing block 412 is provided with a first through hole 5 and a second through hole 6, the first fixing block 412 is threadedly connected to the first fulcrum bolt 411 and the first On a fixing bolt 413, the first fulcrum bolt 411 is slidably connected to the groove 2, the first fulcrum bolt 411 passes through the first through hole 5 and is threadedly connected to the first nut 414, the first fixing bolt 413 is threadedly connected to the first fixing block 412 through the second through hole 6, the threaded end of the first fulcrum bolt 411 and the second fulcrum bolt 421 faces away from the welding base plate 1, and the threaded end of the first fixing bolt 413 and the second fixing bolt 423 faces the welding base plate 1.

[0026] With such arrangement, when the staff uses the thick plate clamp, they first place the thick plate to be welded on the welding base plate 1, and the end of the first fulcrum bolt 411 set as the external thread cooperates with the first fixing block 412, and the tail of the bolt contacts the welding base plate 1. The staff makes the first fulcrum bolt 411 slide in the groove 2 so that one end of the fixing block set on the first fulcrum bolt 411 is located above the thick plate, and then the staff rotates the first nut 414 to move the first nut 414 in the direction away from the welding base plate 1, and then the first fixing block 412 can move back and forth on the first fulcrum bolt 411 through the first through hole 5. The staff adjusts the position of the first fixing block 412 on the first fulcrum bolt 411 so that the first fixing block 412 is exactly located at the four corners of the thick plate, and then the staff rotates the first The nut 414 fixes the first fixing block 412 on the thick plate, and the second through hole 6 is provided with a thread. The staff then rotates the first fixing bolt 413 so that one end of the first fixing bolt 413 moves through the second through hole 6 toward the welding base plate 1, and finally one end of the first fixing bolt 413 abuts against the welding base plate 1. This can control the warping of the thick plate caused by thermal expansion and contraction during the welding process, effectively limit its deformation, ensure that the welded plate maintains the expected shape and size, reduce the heat affected zone during the welding process, and also reduce welding defects caused by thermal deformation, such as cracks, pores and unfusion. The thick plate may move due to thermal expansion, which can ensure that the plate maintains the correct alignment and position during the welding process, improve stability, reduce structural damage caused by vibration or impact, and improve welding efficiency.

[0027] Optionally, in some embodiments, see Figures 1-4 The spiral pressing assembly 42 includes a second fulcrum bolt 421, a second fixing block 422, a second fixing bolt 423 and a second nut 424. A third through hole 7 is opened on the second fixing block 422. One end of the second fulcrum bolt 421 is slidably connected to the groove 2, and the other end of the second fulcrum bolt 421 passes through the third through hole 7 and is threadedly connected to the second nut 424. The second fixing block 422 is threadedly connected to the first fulcrum bolt 411, and the second fixing bolt 423 is threadedly connected to the second fixing block 422 through the third through hole 7. This solution.

[0028] With this arrangement, after the staff has screwed the four corners of the thick plate, the thick plate needs to be fixed as a whole to prevent it from loosening. First, the staff moves the second fulcrum bolt 421, and the second through hole 6 is provided with a thread. The second fulcrum bolt 421 slides in the groove 2 so that the second fixing block 422 is adjusted to the position required by the staff. The staff rotates the second nut 424 to move the second nut 424 toward the welding base plate 1 and fix the fixing block on the second fulcrum bolt 421. Then the staff rotates the second fixing bolt 423 to move the second fixing bolt 423 toward the welding base plate 1 so that one end of the second fixing bolt 423 is fixed to the outer surface of the thick plate, so that the thick plate is fixed on the welding base plate 1. The staff can then perform laser welding on the thick plate. When laser welding is required in the middle of the thick plate, the staff can use the second nut 424 to disengage the second fixing block 422 from the second The fulcrum bolt 421, the staff can weld the thick plate. After welding is completed, the staff needs to remove the thick plate. The staff needs to rotate the first fixing bolt 413 and the second fixing bolt 423 to make the first fixing bolt 413 and the second fixing bolt 423 away from the thick plate. Then the staff rotates the first nut 414 and the second nut 424 to make the first nut 414 and the second nut 424 disengage from the first fulcrum bolt 411 and the second fulcrum bolt 421. Then the staff can remove the first fixing block 412 and the second fixing block 422 to disengage from the first fulcrum bolt 411 and the second fulcrum bolt 421. Then the staff can remove the thick plate, which can reduce or eliminate deformation, keep the geometric shape of the plate unchanged, help ensure that the welded parts maintain the correct relative position, increase stability during welding, and perform laser welding on thick plates of different sizes, improve the practicality of the equipment, and reduce production costs.

[0029] Optionally, in some embodiments, see Figure 1 The movable spiral pressing assembly 41 and the spiral pressing assembly 42 are provided in plurality.

[0030] Working principle: When using the thick plate clamp, the staff first places the thick plate to be welded on the welding base plate 1, and the staff makes the first fulcrum bolt 411 slide in the groove 2 so that one end of the fixing block set on the first fulcrum bolt 411 is located above the thick plate. Then the staff rotates the first nut 414 so that the first nut 414 moves away from the welding base plate 1, and then the first fixing block 412 can move back and forth on the first fulcrum bolt 411 through the first through hole 5. The staff adjusts the position of the first fixing block 412 on the first fulcrum bolt 411 so that the first fixing block 412 is exactly located at the four corners of the thick plate. , then the staff rotates the first nut 414 to fix the first fixing block 412 on the thick plate, and the second through hole 6 is provided with a thread. The staff then rotates the first fixing bolt 413 so that one end of the first fixing bolt 413 moves through the second through hole 6 toward the welding base plate 1. Finally, one end of the first fixing bolt 413 abuts against the welding base plate 1. After the staff screws the four corners of the thick plate, the thick plate needs to be fixed as a whole to prevent loosening. First, the staff moves the second fulcrum bolt 421, which is provided with a thread on the second through hole 6, and slides the second fulcrum bolt 421 in the groove 2 so that the second fixing block 422 fixes the block After adjusting to the position required by the staff, the staff rotates the second nut 424 to move the second nut 424 toward the welding base plate 1, fixing the fixing block on the second fulcrum bolt 421, and then the staff rotates the second fixing bolt 423 to move the second fixing bolt 423 toward the welding base plate 1, so that one end of the second fixing bolt 423 is fixed to the outer surface of the thick plate, so that the thick plate is fixed to the welding base plate 1, and the staff can perform laser welding on the thick plate. When laser welding is required in the middle of the thick plate, the staff can use the second nut 424 to separate the second fixing block 422 from the second fulcrum bolt 421 , the staff can weld the thick plate. After welding is completed, the staff needs to remove the thick plate. The staff needs to rotate the first fixing bolt 413 and the second fixing bolt 423 so that the first fixing bolt 413 and the second fixing bolt 423 are away from the thick plate. Then the staff rotates the first nut 414 and the second nut 424 so that the first nut 414 and the second nut 424 are separated from the first fulcrum bolt 411 and the second fulcrum bolt 421. Then the staff can remove the first fixing block 412 and the second fixing block 422 to separate them from the first fulcrum bolt 411 and the second fulcrum bolt 421. Then the staff can remove the thick plate.

[0031] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A detachable and adjustable laser welding thick plate fixture, characterized by: The invention comprises a welding base plate (1), a weld bead base plate (3) and a clamping mechanism (4); the welding base plate (1) is provided with a groove (2); the weld bead base plate (3) is arranged on the welding base plate (1); the clamping mechanism (4) comprises a movable spiral pressing component (41) and a spiral pressing component (42); the movable spiral pressing component (41) and the spiral pressing component (42) are both arranged on the welding base plate (1); the movable spiral pressing component (41) is used for moving the thick plate to perform spiral pressing; the spiral pressing component (42) is used for fixedly spiral pressing the thick plate.

2. The detachable and adjustable laser welding thick plate fixture according to claim 1, characterized in that: The grooves (2) are arranged in parallel and are perpendicular to the welding direction, and a plurality of grooves (2) are provided.

3. The detachable and adjustable laser welding thick plate fixture according to claim 2, characterized in that: The weld bead bottom plate (3) is in an I-shape, with a hole opened in each of the four corners. The weld bead bottom plate (3) is bolted to the welding bottom plate (1) on both sides.

4. The detachable and adjustable laser welding thick plate fixture according to claim 3, characterized in that: The movable spiral pressing assembly (41) includes a first fulcrum bolt (411), a first fixed block (412), a first fixed bolt (413) and a first nut (414); the first fixed block (412) is provided with a first through hole (5) and a second through hole (6); the first fixed block (412) is threadedly connected to the first fulcrum bolt (411) and the first fixed bolt (413); the first fulcrum bolt (411) is slidably connected to the groove (2); the first fulcrum bolt (411) passes through the first through hole (5) and is threadedly connected to the first nut (414); the first fixed bolt (413) is threadedly connected to the first fixed block (412) through the second through hole (6).

5. The detachable and adjustable laser welding thick plate fixture according to claim 4, characterized in that: The spiral pressing assembly (42) includes a second fulcrum bolt (421), a second fixing block (422), a second fixing bolt (423) and a second nut (424); a third through hole (7) is provided on the second fixing block (422); one end of the second fulcrum bolt (421) is slidably connected in the groove (2); the other end of the second fulcrum bolt (421) passes through the third through hole (7) and is threadedly connected to the second nut (424); the second fixing block (422) is threadedly connected to the first fulcrum bolt (411); and the second fixing bolt (423) is threadedly connected to the second fixing block (422) through the third through hole (7).

6. The detachable and adjustable laser welding thick plate fixture according to claim 5, characterized in that: The threaded ends of the first fulcrum bolt (411) and the second fulcrum bolt (421) face away from the welding base plate (1), and the threaded ends of the first fixing bolt (413) and the second fixing bolt (423) face toward the welding base plate (1).

7. The detachable and adjustable laser welding thick plate fixture according to claim 6, characterized in that: The movable spiral pressing assembly (41) and the spiral pressing assembly (42) are provided in plurality.

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