A laser welding fixture for preventing welding drift

Abstract

The application discloses a laser welding tool for preventing welding deviation, relates to the technical field of laser welding, and comprises a supporting table, the bottom surface of the supporting table is provided with a supporting frame, the inside of the supporting table is provided with an adjusting mechanism, the top surface of the supporting table is provided with a fastening mechanism and a fixing mechanism, the fastening mechanism is located on the top surface of the adjusting mechanism, the fixing mechanism is located on the side of the top surface of the supporting table far from the fastening mechanism, the workpiece can be moved by the adjusting mechanism, so that the workpiece moves relatively with the workpiece on the fixing mechanism, the distance between the two is adjusted, the workpiece does not need to be disassembled and reassembled, the workpiece can be fixed by the cooperation of the protective pad between the upper pressing plate and the lower pressing plate, the supporting plate can be limited by the fastening bolt, the deviation of the supporting plate is preliminarily prevented, the lateral deviation of the supporting plate is reduced, and the stability during welding is improved.

Description

Technical Field

[0001] This application relates to the field of laser welding technology, and in particular to a laser welding fixture for preventing welding misalignment. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is an important application of laser material processing technology. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] According to announcement number CN220971131U, a laser welding positioning fixture is disclosed. This technology discloses a technical solution that includes "a first housing, with a first sliding groove at the bottom of the first housing, a first electric telescopic rod fixedly installed on one side of the first sliding groove, a second housing fixedly installed on one side of the first electric telescopic rod, a plurality of second sliding grooves opened inside the first housing, and first sliding rollers movable inside the second sliding grooves, etc. This solution has the technical effect of clamping the device to be welded through the electric telescopic rod and the set clamping plate, and through the coordinated action of the set first electric telescopic rod and the second electric telescopic rod, the distance of the device to be welded can be adjusted, which greatly improves the position adjustability during the positioning process and facilitates the adjustment of the device position during the welding process."

[0004] Regarding the aforementioned technologies, the inventors believe the following problems still exist:

[0005] First, when welding two workpieces, the two workpieces need to be joined together. However, the device can only adjust the distance between the workpiece and the laser, and cannot adjust the distance between the two workpieces. As a result, in some cases, the workpieces need to be disassembled and reassembled, which makes its performance poor.

[0006] Secondly, the aforementioned device directly uses an electric telescopic rod to move the clamping plate, thereby adjusting the position of the workpiece. At the same time, the device does not have a limit switch, which causes the workpiece to shift laterally during laser welding, thus affecting the welding quality.

[0007] To address the aforementioned problems, the inventors have proposed a laser welding fixture to prevent welding misalignment, thereby resolving these issues. Utility Model Content

[0008] In order to improve the poor performance of some existing devices, the purpose of this utility model is to provide a laser welding fixture that prevents welding misalignment.

[0009] To solve the above problems, this utility model provides the following solution: a laser welding fixture for preventing welding misalignment, including a support platform, a support frame provided on the bottom surface of the support platform, an adjustment mechanism provided inside the support platform, a fastening mechanism and a fixing mechanism provided on the top surface of the support platform, the fastening mechanism being located on the top surface of the adjustment mechanism, and the fixing mechanism being located on the top surface of the support platform away from the fastening mechanism.

[0010] Preferably, the adjusting mechanism includes a threaded rod, the top surface of the support platform has an installation groove, the threaded rod is rotatably installed inside the installation groove, the outer surface of the threaded rod is threaded with a threaded block, the top surface of the threaded block is fixedly installed with a support plate, both sides of the top surface of the support plate are movably inserted with locking bolts, the bottom end of the locking bolts movably passes through the support platform and is threaded with a locking nut, the top surface of the support platform has a limiting groove for use with the locking bolts and locking nuts, the cross-section of the limiting groove is inverted T-shaped, and both the installation groove and the limiting groove are provided with bellows-type protective covers.

[0011] Preferably, the fastening mechanism includes a connecting plate, which is fixedly installed on the top surface of the support plate. A lower clamping plate is fixedly installed on the top surface of the connecting plate, and an upper clamping plate is rotatably installed on one side of the top surface of the lower clamping plate. The upper and lower clamping plates have a clamping groove on their opposite sides. Multiple inner walls of the clamping groove are fixedly fitted with anti-slip pads. A fastening bolt is provided on one side of the upper clamping plate, and a fixing groove for use with the fastening bolt is provided on one side of the lower clamping plate.

[0012] Preferably, the fixing mechanism includes a support plate, which is fixedly installed on one side of the top surface of the support platform. A drive cylinder is fixedly installed on both sides of the top surface of the support plate. A pressure plate is fixedly installed on the telescopic ends of the two drive cylinders. Two limit rods are fixedly installed on the opposite sides of the two pressure plates. Multiple limit rods are slidably installed on the top surface of the support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting an adjustment mechanism, can drive the workpiece to move, thereby moving the workpiece relative to the workpiece on the fixed mechanism, thus adjusting the distance between the two, without the need to disassemble and reassemble the workpiece, thus improving the welding effect.

[0015] 2. This utility model, by setting up a fastening mechanism, can fix the workpiece by using the protective pad between the upper and lower pressure plates, and limit the support plate by tightening the bolts, thus initially preventing it from shifting, thereby reducing the occurrence of lateral shifting and improving the stability during welding. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of part of the adjustment mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram of the fastening mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the fastening mechanism of this utility model.

[0023] In the diagram: 1. Support platform; 11. Support frame; 12. Guide groove; 2. Adjustment mechanism; 21. Handwheel; 22. Threaded block; 23. Support plate; 24. Limiting groove; 25. Mounting groove; 26. Bellows-style protective cover; 27. Threaded rod; 28. Locking bolt; 29. ​​Locking nut; 3. Fastening mechanism; 31. Connecting plate; 32. Lower clamping plate; 33. Upper clamping plate; 34. Groove; 35. Fastening bolt; 36. Clamping groove; 37. Fixing groove; 4. Fixing mechanism; 40. Support plate; 41. Pressure plate; 42. Limiting rod; 43. Drive cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Figure 1-6As shown, this utility model provides a laser welding fixture for preventing welding misalignment, including a support platform 1. The support platform 1 serves as a support component, supporting and fixing components of the device. A support frame 11 is provided on the bottom surface of the support platform 1, which also supports the support platform 1. An adjustment mechanism 2 is provided inside the support platform 1, which can adjust the fastening mechanism 3 on the top surface, thereby adjusting the workpiece. The top surface of the support platform 1 is provided with the fastening mechanism 3 and the fixing mechanism 4, both of which can fix the workpiece, thus preventing workpiece movement. The fastening mechanism 3 is located on the top surface of the adjustment mechanism 2, and the fixing mechanism 4 is located on the top surface of the support platform 1 away from the fastening mechanism 3. The adjustment mechanism 2 drives the fastening mechanism 3 to move, thereby causing the workpiece inside to move relative to the workpiece on the fixing mechanism 4. A guide groove 12 is fixedly installed on the top surface of the support platform 1, located between the support plate 23 and the support plate 40. The guide groove 12, as a groove-shaped structure, can collect welding residue.

[0026] The adjusting mechanism 2 includes a threaded rod 27, which is a mature existing technology and can drive the threaded block 22 to move. The top surface of the support platform 1 is provided with an installation groove 25, which can support the threaded rod 27. The threaded rod 27 is rotatably installed inside the installation groove 25 to prevent the threaded rod 27 from falling off. One end of the threaded rod 27 rotates through the support platform 1 and is fixedly installed with a handwheel 21. The handwheel 21 can make it easier to rotate the threaded rod 27. If necessary, it can be replaced with a motor drive. The outer surface of the threaded rod 27 is threaded with a threaded block 22. The threaded block 22 works in conjunction with the threaded rod 27 to make the threaded rod 27 drive the threaded block 22 to move, so that the threaded block 22 slides inside the installation groove 25, thereby making the threaded block 22 move linearly.

[0027] A support plate 23 is fixedly installed on the top surface of the threaded block 22. The support plate 23 serves as a support component and can drive the fastening mechanism 3 to move. Locking bolts 28 are movably inserted into both sides of the top surface of the support plate 23. As a mature existing technology, the locking bolts 28 can lock the support plate 23, thereby preventing its displacement. Countersunk holes are provided on both sides of the fixed plate support plate 23, and the locking bolts 28 are movably inserted into the countersunk holes. The bottom end of the locking bolt 28 movably passes through the support platform 1 and is threaded with a locking nut 29, so that the locking bolt 28 is engaged with the locking nut 29. The locking nut 29 is used in conjunction to prevent the support plate 23 from being limited. The top surface of the support platform 1 is provided with a limiting groove 24 that is used in conjunction with the locking bolt 28 and the locking nut 29. The cross-section of the limiting groove 24 is inverted T-shaped. By cooperating with the locking bolt 28 and the locking nut 29, the support plate 23 can be locked in the appropriate position. Both the mounting groove 25 and the limiting groove 24 are provided with bellows-type protective covers 26. As a mature existing technology, the bellows-type protective cover 26 can protect the mounting groove 25 and the limiting groove 24 and prevent dust from entering.

[0028] The fastening mechanism 3 includes a connecting plate 31, which connects the fastening mechanism 3 to the adjusting mechanism 2 to prevent them from falling off. The connecting plate 31 is fixedly installed on the top surface of the support plate 23. A lower clamping plate 32 is fixedly installed on the top surface of the connecting plate 31. An upper clamping plate 33 is rotatably installed on one side of the top surface of the lower clamping plate 32. The upper clamping plate 33 and the lower clamping plate 32 cooperate to tighten the parts. The upper clamping plate 33 and the lower clamping plate 32 have a clamping groove 36 on their opposite sides. Anti-slip pads are fixedly installed on multiple inner walls of the clamping groove 36. The upper clamping plate 33 has raised sections to increase its anti-slip effect. A fastening bolt 35 is provided on one side of the upper clamping plate 33. The fastening bolt 35 is a mature existing technology that can lock the upper clamping plate 33 and the lower clamping plate 32. A groove 34 is provided on one side of the upper clamping plate 33. The fastening bolt 35 is movably installed inside the groove 34, allowing it to rotate inside the groove 34 for locking. A fixing groove 37 is provided on one side of the lower clamping plate 32 for use with the fastening bolt 35. The interface of the fixing groove 37 is shaped like an inverted T and can be used in conjunction with the fastening bolt 35.

[0029] The fixing mechanism 4 includes a support plate 40, which serves as a support to support the fixing mechanism 4. The support plate 40 is fixedly installed on one side of the top surface of the support platform 1 to prevent it from falling off. Both sides of the top surface of the support plate 40 are fixedly installed with drive cylinders 43. As a mature existing technology, the drive cylinders 43 can drive the pressure plate 41 to move, thereby fixing the workpiece with the pressure plate 41. The extension and retraction ends of the two drive cylinders 43 are fixedly installed with pressure plates 41. Two limit rods 42 are fixedly installed on the opposite sides of the two pressure plates 41. The multiple limit rods 42 are slidably installed on the top surface of the support plate 40. The limit rods 42 can fix the workpiece and prevent the pressure plate 41 from shifting.

[0030] Working principle: First, place the two workpieces to be welded inside the clamping groove 36 and on the top surface of the support plate 40, respectively. Then, rotate the upper clamping plate 33 to engage with the lower clamping plate 32 to initially fix the workpieces. Next, insert the fastening bolts 35 into the groove 34 and place their bottom ends inside the fixing groove 37. Use a tool to rotate the two fastening bolts 35 to fix them with the fastening nuts, thereby engaging the upper clamping plate 33 with the lower clamping plate 32 to fix the workpieces. The anti-slip pads in the soil area can increase the friction between the workpieces and the upper and lower clamping plates 33 and 32, thus making them more stable.

[0031] Then, the two drive cylinders 43 on the top surface of the support plate 40 are activated, causing the two drive cylinders 43 to move the pressure plate 41, thereby fixing the workpiece. At the same time, the pressure plate 41 moves through the two limit rods 42, thereby fixing the workpiece and making the two workpieces at the same level.

[0032] Then, the handwheel 21 is activated, causing the threaded rod 27 to rotate. The threaded rod 27 rotates inside the mounting groove 25, thereby moving the threaded block 22. As the threaded block 22 slides inside the mounting groove 25, it moves linearly, thereby moving the support plate 23. The support plate 23 moves the workpiece through the connecting plate 31, thus adjusting the distance between the two workpieces. Then, the locking bolt 28 is rotated, causing the locking bolt 28 to move the locking nut 29 upward, thereby engaging the locking bolt 28 and the locking nut 29 and locking them inside the limiting groove 24. This locks the support plate 23, preventing it from shifting. At the same time, the bellows-style protective cover 26, as a mature existing technology, can protect the mounting groove 25 and the limiting groove 24, preventing dust from entering.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A laser welding fixture for preventing welding misalignment, comprising a support platform (1), characterized in that: The bottom surface of the support platform (1) is provided with a support frame (11), the inside of the support platform (1) is provided with an adjustment mechanism (2), the top surface of the support platform (1) is provided with a fastening mechanism (3) and a fixing mechanism (4), the fastening mechanism (3) is located on the top surface of the adjustment mechanism (2), and the fixing mechanism (4) is located on the side of the top surface of the support platform (1) away from the fastening mechanism (3).

2. The laser welding fixture for preventing welding misalignment according to claim 1, characterized in that: The adjustment mechanism (2) includes a threaded rod (27). The top surface of the support platform (1) is provided with an installation groove (25). The threaded rod (27) is rotatably installed inside the installation groove (25). The outer surface of the threaded rod (27) is threaded with a threaded block (22). The top surface of the threaded block (22) is fixedly installed with a support plate (23). Locking bolts (28) are movably inserted on both sides of the top surface of the support plate (23). The bottom end of the locking bolt (28) movably passes through the support platform (1) and is threaded with a locking nut (29). The top surface of the support platform (1) is provided with a limiting groove (24) that cooperates with the locking bolt (28) and the locking nut (29). The cross-section of the limiting groove (24) forms an inverted T-shape. The installation groove (25) and the limiting groove (24) are both provided with bellows-style protective covers (26).

3. The laser welding fixture for preventing welding misalignment according to claim 1, characterized in that: The fastening mechanism (3) includes a connecting plate (31), which is fixedly installed on the top surface of the support plate (23). A lower clamping plate (32) is fixedly installed on the top surface of the connecting plate (31). An upper clamping plate (33) is rotatably installed on one side of the top surface of the lower clamping plate (32). A clamping groove (36) is opened on the opposite side of the upper clamping plate (33) and the lower clamping plate (32). Anti-slip pads are fixedly installed on multiple inner walls of the clamping groove (36). A fastening bolt (35) is provided on one side of the upper clamping plate (33). A fixing groove (37) for use with the fastening bolt (35) is opened on one side of the lower clamping plate (32).

4. The laser welding fixture for preventing welding misalignment according to claim 1, characterized in that: The fixing mechanism (4) includes a support plate (40), which is fixedly installed on one side of the top surface of the support platform (1). Both sides of the top surface of the support plate (40) are fixedly installed with driving cylinders (43). The telescopic ends of the two driving cylinders (43) are fixedly installed with pressure plates (41). Two limiting rods (42) are fixedly installed on the opposite sides of the two pressure plates (41). Multiple limiting rods (42) are slidably installed on the top surface of the support plate (40).

5. The laser welding fixture for preventing welding misalignment according to claim 1, characterized in that: The top surface of the support platform (1) is fixedly equipped with a guide groove (12), which is located between the support plate (23) and the support plate (40).

6. A laser welding fixture for preventing welding misalignment according to claim 2, characterized in that: The support plate (23) has countersunk holes on both sides, and the locking bolt (28) is movably inserted into the countersunk holes.

7. A laser welding fixture for preventing welding misalignment according to claim 2, characterized in that: One end of the threaded rod (27) rotates through the support platform (1) and is fixedly mounted with a handwheel (21).

8. A laser welding fixture for preventing welding misalignment according to claim 3, characterized in that: A groove (34) is provided on one side of the upper clamping plate (33), and the fastening bolt (35) is movably installed inside the groove (34).

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