Positioning mechanism of material belt laser welding machine

Abstract

The utility model discloses a positioning mechanism of a material belt laser welding machine, which comprises a mounting base, the top of the mounting base is provided with a first sliding chute, the inside of the first sliding chute is rotatably connected with a bidirectional screw rod, the front surface of the bidirectional screw rod is fixedly connected with a rotating handle, the surface of the bidirectional screw rod is in threaded connection with a limiting plate, and the limiting plate is fixedly connected with the rotating handle. The surface of the bidirectional lead screw is fixedly sleeved with a ratchet wheel, and the side, away from the rotating handle, of the mounting base is fixedly connected with a connecting block. The two-way lead screw rotates by rotating the rotating handle, the limiting plates slide in the first sliding grooves and get close to each other, and the limiting plates make contact with the material belts after moving by a certain distance, so that the two sides of the two material belts are aligned, the dislocation situation in the welding process is prevented, meanwhile, the ratchet wheel rotates along with the two-way lead screw, and therefore the welding efficiency is improved. Due to the fact that the pawl is clamped in the gear groove of the ratchet wheel, the ratchet wheel can only rotate in one direction, and the situation that the material belt is loosened after being limited is avoided.

Description

Technical Field

[0001] This utility model relates to the field of laser welding machine technology, specifically a positioning mechanism for a strip laser welding machine. Background Technology

[0002] A strip laser welding machine is a device that uses laser technology for welding, primarily used for the precise welding of strips (such as thin metal strips and foils). This type of welding machine features high precision and efficiency, and is suitable for welding various thin-walled materials and precision parts. It can perform various welding methods such as spot welding, butt welding, and sealing welding. To ensure stability during the welding process, a positioning mechanism is typically used to fix the position of the strip.

[0003] According to CN221415434U, a laser cutting and welding machine with a positioning mechanism includes a processing table. Support legs are installed on both sides of the bottom of the processing table. A controller is installed at one end of the processing table. A storage cabinet is installed inside the processing table. Heat dissipation holes are provided on both sides of the interior of the processing table. Threaded sleeves are movably installed on the outer wall of the screw, and a placement seat is installed at the top of each threaded sleeve. Threaded rods are movably installed on both sides inside the placement seat. This laser cutting and welding machine, by incorporating components such as a positioning table, positioning block, threaded rod, and screw, allows the workpiece to be placed in the placement seat inside the positioning table above the processing table after it is retrieved. The rotation of the threaded rod then pushes the positioning block to position and lock the placed workpiece, ensuring that the workpiece is stably positioned and clamped above the processing table. This significantly improves the accuracy of subsequent workpiece cutting and enhances its practicality.

[0004] The aforementioned positioning blocks and other structures can be used to position the workpiece, thereby improving the accuracy of workpiece cutting. However, since the position of the positioning block is adjusted manually by using a threaded rod, the workpiece is prone to misalignment in the lateral direction when it is cut and then welded, which reduces the quality of the workpiece during welding. Utility Model Content

[0005] The purpose of this invention is to provide a positioning mechanism for a strip laser welding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning mechanism for a strip laser welding machine, comprising a mounting base, a first sliding groove on the top of the mounting base, a bidirectional lead screw rotatably connected inside the first sliding groove, a rotating handle fixedly connected to the front of the bidirectional lead screw, a limit plate threadedly connected to the surface of the bidirectional lead screw, a ratchet fixedly sleeved on the surface of the bidirectional lead screw, a connecting block fixedly connected to the side of the mounting base away from the rotating handle, a connecting spring fixedly connected to the side of the connecting block near the ratchet, a pawl fixedly connected to the end of the connecting spring away from the connecting block, and a rotating rod rotatably connected inside the pawl.

[0007] As a further preferred embodiment of this technical solution, the rotating handle is located outside the mounting base, there are two limiting plates, and the bottom ends of the two limiting plates are provided with sliders. The sliders are adapted to the first sliding groove, the ratchet and the pawl are engaged, and the rotating rod is fixedly connected to the mounting base.

[0008] As a further preferred embodiment of this technical solution, a support base is fixedly connected to the top of the mounting base, a second sliding groove is provided on the top of the support base, a drive motor is fixedly connected to the right side of the support base, a threaded rod is fixedly connected to the output end of the drive motor, a movable seat is threadedly connected to the surface of the threaded rod, and a fixed seat is fixedly connected to the top of the mounting base.

[0009] As a further preferred embodiment of this technical solution, a connecting plate is fixedly connected to the top of both the movable seat and the fixed seat. A through hole is opened in the middle of the connecting plate, and a slide rod is slidably connected inside the through hole. A return spring is movably sleeved on the surface of the slide rod. A positioning plate is fixedly connected to the side of the slide rod near the second slide groove, and a lower magnetic block is fixedly connected to the top of the connecting plate.

[0010] As a further preferred embodiment of this technical solution, the number of through holes is four, the number of sliding rods corresponds to the number of through holes, a circular baffle is provided on the side of the sliding rod away from the positioning plate, and the reset spring is located between the connecting plate and the positioning plate.

[0011] As a further preferred embodiment of this technical solution, a rotating seat is fixedly connected to the top of the connecting plate, a rotating plate is rotatably connected inside the rotating seat, a threaded hole is opened in the middle of the rotating plate, an adjusting screw is threadedly connected inside the threaded hole, a pressure plate is rotatably connected to the bottom of the adjusting screw, a telescopic rod is fixedly connected to the top of the pressure plate, and an upper magnetic block is fixedly connected to the bottom of the rotating plate.

[0012] As a further preferred embodiment of this technical solution, a rotating disk is provided at the top of the adjusting screw, the telescopic rod and the rotating plate are fixedly connected, the telescopic rod is composed of two sleeve rods, and the bottom end of the upper magnetic block is in contact with the lower magnetic block.

[0013] This utility model provides a positioning mechanism for a strip laser welding machine, which has the following beneficial effects:

[0014] (1) By rotating the handle, the bidirectional screw rotates and the limiting plate slides in the first groove and moves closer to each other. After moving a certain distance, the limiting plate and the material strip come into contact, thereby aligning the two sides of the material strip and preventing misalignment during welding. At the same time, the ratchet rotates with the bidirectional screw. Since the pawl is engaged in the gear groove of the ratchet, the ratchet can only rotate in one direction, thereby avoiding loosening after limiting the material strip.

[0015] (2) This utility model pulls the slide rod outward to make it slide in the through hole. The return spring is squeezed and contracted. After moving a certain distance, the material strip is placed between the two connecting plates. The slide rod is moved back by the elastic force of the return spring, and the position of the material strip is fixed by the positioning plate. The rotating plate is flipped so that it rotates in the rotating seat. The upper magnetic block and the lower magnetic block contact and attract each other, thereby fixing the position of the rotating plate. At the same time, the pressure plate contacts the material strip and limits it in the longitudinal direction to prevent the material strip from loosening during processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the unfolded structure of the connecting plate and rotating plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the threaded hole and adjusting screw structure of this utility model.

[0021] In the diagram: 1. Mounting base; 2. First slide groove; 3. Two-way lead screw; 4. Rotating handle; 5. Limiting plate; 6. Ratchet; 7. Connecting block; 8. Connecting spring; 9. Pawl; 10. Rotating rod; 11. Support seat; 12. Second slide groove; 13. Drive motor; 14. Threaded rod; 15. Moving seat; 16. Fixed seat; 17. Connecting plate; 18. Through hole; 19. Slide rod; 20. Return spring; 21. Positioning plate; 22. Lower magnetic block; 23. Rotating seat; 24. Rotating plate; 25. Threaded hole; 26. Adjusting screw; 27. Pressure plate; 28. Telescopic rod; 29. ​​Upper magnetic block. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figure 1 and Figure 5 As shown, in this embodiment, a positioning mechanism for a strip laser welding machine includes a mounting base 1. A first groove 2 is provided on the top of the mounting base 1. A bidirectional lead screw 3 is rotatably connected inside the first groove 2. A rotating handle 4 is fixedly connected to the front of the bidirectional lead screw 3. A limit plate 5 is threadedly connected to the surface of the bidirectional lead screw 3. A ratchet 6 is fixedly sleeved on the surface of the bidirectional lead screw 3. A connecting block 7 is fixedly connected to the side of the mounting base 1 away from the rotating handle 4. A connecting spring 8 is fixedly connected to the side of the connecting block 7 near the ratchet 6. A pawl 9 is fixedly connected to the end of the connecting spring 8 away from the connecting block 7. A rotating rod 10 is rotatably connected inside the pawl 9.

[0024] By rotating the handle 4, the bidirectional lead screw 3 rotates, and the limiting plates 5 slide and move closer to each other in the first slide groove 2. After moving a certain distance, the limiting plates 5 contact the material strip, thereby aligning the two sides of the material strip and preventing misalignment during welding. At the same time, the ratchet 6 rotates with the bidirectional lead screw 3. Since the pawl 9 is engaged in the gear groove of the ratchet 6, the ratchet 6 can only rotate in one direction, thus avoiding loosening after limiting the material strip.

[0025] The rotating handle 4 is located outside the mounting base 1. There are two limiting plates 5. The bottom of the two limiting plates 5 is equipped with sliders. The sliders are adapted to the first sliding groove 2. The ratchet 6 and the pawl 9 are engaged. The rotating rod 10 is fixedly connected to the mounting base 1.

[0026] The top of the mounting base 1 is fixedly connected to a support seat 11. The top of the support seat 11 is provided with a second sliding groove 12. The right side of the support seat 11 is fixedly connected to a drive motor 13. The output end of the drive motor 13 is fixedly connected to a threaded rod 14. The surface of the threaded rod 14 is threadedly connected to a movable seat 15. The top of the mounting base 1 is fixedly connected to a fixed seat 16.

[0027] The top of both the movable seat 15 and the fixed seat 16 are fixedly connected to a connecting plate 17. A through hole 18 is opened in the middle of the connecting plate 17. A slide rod 19 is slidably connected inside the through hole 18. A return spring 20 is movably sleeved on the surface of the slide rod 19. A positioning plate 21 is fixedly connected to the side of the slide rod 19 near the second slide groove 12. A lower magnetic block 22 is fixedly connected to the top of the connecting plate 17.

[0028] There are four through holes 18, and the number of slide rods 19 corresponds to the number of through holes 18. A circular baffle is provided on the side of the slide rod 19 away from the positioning plate 21, and the return spring 20 is located between the connecting plate 17 and the positioning plate 21.

[0029] A rotating seat 23 is fixedly connected to the top of the connecting plate 17. A rotating plate 24 is rotatably connected inside the rotating seat 23. A threaded hole 25 is opened in the middle of the rotating plate 24. An adjusting screw 26 is threadedly connected inside the threaded hole 25. A pressure plate 27 is rotatably connected to the bottom of the adjusting screw 26. A telescopic rod 28 is fixedly connected to the top of the pressure plate 27. An upper magnetic block 29 is fixedly connected to the bottom of the rotating plate 24.

[0030] By pulling the slide bar 19 outward, it slides within the through hole 18, compressing the return spring 20. After moving a certain distance, the strip is placed between the two connecting plates 17. The return spring 20 causes the slide bar 19 to move back, and the positioning plate 21 fixes the position of the strip. The rotating plate 24 is flipped, causing it to rotate within the rotating seat 23. The upper magnetic block 29 and the lower magnetic block 22 contact and attract each other, thus fixing the position of the rotating plate 24. At the same time, the pressure plate 27 contacts the strip and limits its longitudinal movement to prevent loosening during processing. The adjusting screw 26 is rotated within the threaded hole 25, pushing the pressure plate 27 downward. The length of the telescopic rod 28 changes accordingly to adjust the height of the pressure plate 27, thus adapting to strips of different thicknesses.

[0031] The top of the adjusting screw 26 is provided with a rotating disk. The telescopic rod 28 and the rotating plate 24 are fixedly connected. The telescopic rod 28 is composed of two sleeve rods. The bottom end of the upper magnetic block 29 is in contact with the lower magnetic block 22.

[0032] This utility model provides a positioning mechanism for a strip laser welding machine, the specific working principle of which is as follows:

[0033] In use, the mounting base 1 is fixed to the frame with bolts. Pulling the slide rod 19 outwards allows it to slide within the through hole 18, compressing the return spring 20. After moving a certain distance, the two strips are placed between the two connecting plates 17 of the fixed seat 16 and the movable seat 15, respectively. The return spring 20 causes the slide rod 19 to return, and the positioning plate 21 fixes the position of the strips. The rotating plate 24 is then flipped, causing it to rotate within the rotating seat 23. The upper magnetic block 29 and the lower magnetic block 22 contact and attract each other, thus fixing the position of the rotating plate 24. Simultaneously, the pressure plate 27 contacts the strips, aligning them longitudinally. The upward movement will limit the movement. Start the drive motor 13, and the threaded rod 14 will start to rotate. The moving seat 15 will slide on the support seat 11 and move closer to the fixed seat 16. Once the end faces of the two strips are aligned, rotate the handle 4 to rotate the bidirectional screw 3. The limiting plate 5 will slide in the first slide groove 2 and move closer to each other. After moving a certain distance, the limiting plate 5 will contact the strip, thereby aligning the two sides of the strips and preventing misalignment during welding. At the same time, the ratchet 6 will rotate with the bidirectional screw 3. Since the pawl 9 is engaged in the gear groove of the ratchet 6, the ratchet 6 can only rotate in one direction, preventing loosening after limiting the strips.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for a strip laser welding machine, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is provided with a first sliding groove (2), and a bidirectional lead screw (3) is rotatably connected inside the first sliding groove (2). A rotating handle (4) is fixedly connected to the front of the bidirectional lead screw (3). A limit plate (5) is threadedly connected to the surface of the bidirectional lead screw (3). A ratchet (6) is fixedly sleeved on the surface of the bidirectional lead screw (3). A connecting block (7) is fixedly connected to the side of the mounting base (1) away from the rotating handle (4). A connecting spring (8) is fixedly connected to the side of the connecting block (7) near the ratchet (6). A pawl (9) is fixedly connected to the end of the connecting spring (8) away from the connecting block (7). A rotating rod (10) is rotatably connected inside the pawl (9).

2. The positioning mechanism of a strip laser welding machine according to claim 1, characterized in that: The rotating handle (4) is located outside the mounting base (1). There are two limiting plates (5). The bottom ends of the two limiting plates (5) are provided with sliders. The sliders are adapted to the first sliding groove (2). The ratchet (6) and the pawl (9) are engaged. The rotating rod (10) is fixedly connected to the mounting base (1).

3. The positioning mechanism of a strip laser welding machine according to claim 1, characterized in that: The top of the mounting base (1) is fixedly connected to a support base (11), the top of the support base (11) is provided with a second sliding groove (12), the right side of the support base (11) is fixedly connected to a drive motor (13), the output end of the drive motor (13) is fixedly connected to a threaded rod (14), the surface of the threaded rod (14) is threadedly connected to a movable seat (15), and the top of the mounting base (1) is fixedly connected to a fixed seat (16).

4. The positioning mechanism of a strip laser welding machine according to claim 3, characterized in that: The top of both the movable seat (15) and the fixed seat (16) are fixedly connected to a connecting plate (17). A through hole (18) is provided in the middle of the connecting plate (17). A slide rod (19) is slidably connected inside the through hole (18). A return spring (20) is movably sleeved on the surface of the slide rod (19). A positioning plate (21) is fixedly connected to the side of the slide rod (19) near the second slide groove (12). A lower magnetic block (22) is fixedly connected to the top of the connecting plate (17).

5. The positioning mechanism of a strip laser welding machine according to claim 4, characterized in that: The number of through holes (18) is four, and the number of slide rods (19) corresponds to the number of through holes (18). A circular baffle is provided on the side of the slide rod (19) away from the positioning plate (21). The reset spring (20) is located between the connecting plate (17) and the positioning plate (21).

6. The positioning mechanism of a strip laser welding machine according to claim 4, characterized in that: A rotating seat (23) is fixedly connected to the top of the connecting plate (17). A rotating plate (24) is rotatably connected inside the rotating seat (23). A threaded hole (25) is opened in the middle of the rotating plate (24). An adjusting screw (26) is threadedly connected inside the threaded hole (25). A pressure plate (27) is rotatably connected to the bottom end of the adjusting screw (26). A telescopic rod (28) is fixedly connected to the top of the pressure plate (27). An upper magnetic block (29) is fixedly connected to the bottom end of the rotating plate (24).

7. The positioning mechanism of a strip laser welding machine according to claim 6, characterized in that: The top of the adjusting screw (26) is provided with a rotating disk. The telescopic rod (28) and the rotating plate (24) are fixedly connected. The telescopic rod (28) is composed of two sleeve rods. The bottom end of the upper magnetic block (29) is in contact with the lower magnetic block (22).

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