A push-pull wire feeder for laser welding

Abstract

The utility model relates to laser welding device technical field discloses a push -and -pull type wire feeding mechanism for laser welding, including traction cover, both sides of traction cover all are fixedly connected with a set of support, a set of support's outside fixed connection has the conveying cover, another set of support's outside fixed connection has the traction pipe. This push -and -pull type wire feeding mechanism for laser welding, through according to the different of welding wire diameter size, rotate threaded rod, threaded rod pushes and delivers second gasket to move to the inboard side, while second spring exerts pressure to the inclined pole, controls two groups of pusher wheel to exert pressure to welding wire, ensures that the welding wire of different diameters can carry out extrusion definition, and starts the motor of third gear external installation, under the action of gear set, second rack chain and fourth gear drive, ensures that the rotating speed of two groups of pusher wheel is same and opposite rotation, to ensure that pusher wheel pushes and moves welding wire, ensures that welding wire keeps stability when moving.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, specifically a push-pull wire feeding mechanism for laser welding. 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 achieves the welding function by melting the welding wire with a laser. A laser welding machine mainly consists of a welding head, a motion system, and a welding wire feeding mechanism.

[0003] Typically, when pushing welding wire, a set of pushing wheels is installed on each side of the welding wire. When the two sets of pushing wheels rotate synchronously, the welding wire can be pushed forward. To ensure that the two sets of pushing wheels can rotate synchronously, gear contacts are installed on the outside of the pushing wheels. The gear transmission device drives the two sets of pushing wheels to maintain the same rotational efficiency. However, when the diameter of the welding wire changes, the distance between the two sets of pushing wheels needs to be adjusted. When the distance between the pushing wheels changes, the gear transmission mechanism changes. Consequently, when pushing welding wires of different diameters, different pushing structures need to be replaced, resulting in insufficient flexibility in pushing welding wire. Therefore, we propose a push-pull type wire feeding mechanism for laser welding. Summary of the Invention

[0004] To address the shortcomings of existing push-pull wire feeding mechanisms for laser welding, this invention provides a push-pull wire feeding mechanism for laser welding. This mechanism features the advantage of adjusting the inward movement distance of the inclined rod by rotating the threaded rod, thereby adjusting the distance between the two sets of push wheels without interfering with the gear transmission mechanism. It also facilitates the limitation of welding wires of different diameters, improving feeding efficiency and solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a push-pull wire feeding mechanism for laser welding, comprising a traction sleeve, a set of brackets fixedly connected to both sides of the traction sleeve, a conveying sleeve fixedly connected to the outside of one set of brackets, a traction tube fixedly connected to the outside of the other set of brackets, a welding wire being installed through the inside of the conveying sleeve, push rods being sequentially and movably sleeved on both sides of the inside of the traction sleeve, a first washer fixedly connected to the upper end of the push rod, inclined rods being movably sleeved on both sides of the end of the traction sleeve, a push wheel being movably sleeved inside the other end of the inclined rod, a second gear being movably sleeved on the outside of one end of the inclined rod, and a threaded rod being movably sleeved inside the bracket.

[0006] Preferably, the welding wire passes sequentially through the interior of the conveying sleeve, the traction sleeve, and the traction tube, with the end of the traction tube located at the lower end of the welding machine.

[0007] Preferably, a roller is movably sleeved inside the first gasket, a first spring is sleeved on the outside of the push rod, the welding wire is sequentially sleeved on the outside of the roller, and the first spring is installed between the traction sleeve and the first gasket.

[0008] Preferably, the push wheels installed inside the two sets of inclined rods are in contact with the outside of the welding wire, and two sets of push wheels are installed on both sides of the traction sleeve.

[0009] Preferably, a first gear is fixedly connected to the outside of the drive wheel, and a first rack chain is sleeved on the outside of the first gear and the second gear.

[0010] Preferably, a third gear and a fourth gear are fixedly connected to the outside of the two sets of second gears respectively. A gear set is installed on the outside of the bracket. The gear set includes two sets of gears. One set of gears meshes with the third gear, and the other set of gears is kept on the same horizontal plane with the fourth gear. A second rack chain is sleeved on the outside of the other set of gears and the fourth gear.

[0011] Preferably, a second washer is fixedly connected to the end of the threaded rod, and a second spring is installed between the second washer and the inclined rod.

[0012] Compared with existing push-pull wire feeding mechanisms used for laser welding, this invention has the following advantages: 1. This push-pull wire feeding mechanism for laser welding rotates a threaded rod according to the diameter of the welding wire. The threaded rod pushes the second washer inward, while the second spring applies pressure to the inclined rod, controlling the two sets of push wheels to apply pressure to the welding wire. This ensures that welding wires of different diameters can be compressed and limited. The motor mounted on the outside of the third gear is started. Through the action of the gear set, the second rack chain and the fourth gear, the two sets of push wheels are ensured to rotate at the same speed and in opposite directions. This ensures the stability of the welding wire when it is pushed by the push wheels.

[0013] The push-pull wire feeding mechanism for laser welding uses a first pad placed crosswise inside the traction sleeve. Under the elastic action of the first spring, the push roller moves inward, and at the same time, the roller applies pressure to the welding wire to ensure that the welding wire maintains a state of tension balance during the feeding process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the rear view of the main body structure of this utility model; Figure 3 This is a schematic cross-sectional view of the main body of this utility model; Figure 4 This is a front view structural diagram of the present invention; Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This utility model Figure 3 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Traction sleeve; 2. Bracket; 3. Conveying sleeve; 4. Traction pipe; 5. Welding wire; 6. Push rod; 7. First washer; 8. Roller; 9. First spring; 10. Diagonal rod; 11. First gear; 12. Second gear; 13. First rack chain; 14. Third gear; 15. Fourth gear; 16. Threaded rod; 17. Second washer; 18. Second spring; 19. Push wheel; 20. Gear set; 21. Second rack chain. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A push-pull wire feeding mechanism for laser welding includes a traction sleeve 1. A set of brackets 2 are fixedly connected to both sides of the traction sleeve 1. The brackets 2 define the positions of a conveying sleeve 3 and a traction tube 4. The conveying sleeve 3 is fixedly connected to the outside of one set of brackets 2, and the traction tube 4 is fixedly connected to the outside of the other set of brackets 2. The conveying sleeve 3 and the traction tube 4 pull and drive the welding wire 5 to move. The welding wire 5 is installed through the inside of the conveying sleeve 3. Push rods 6 are sequentially and movably sleeved on both sides inside the traction sleeve 1. The upper end of the push rod 6 is fixedly connected to a... A shim 7 is provided. Under the elastic action of the first spring 9, the first shim 7 pushes the roller 8 to move inward, so that the welding wire 5 is kept in a state of tension balance inside the traction sleeve 1. The two sides of the end of the traction sleeve 1 are movably sleeved with diagonal rods 10. The other end of the diagonal rod 10 is movably sleeved with a push wheel 19. The two sets of push wheels 19 are clamped outside the welding wire 5. When the push wheel 19 rotates, the push wheel 19 drives the welding wire 5 to move. The outside of one end of the diagonal rod 10 is movably sleeved with a second gear 12. The inside of the bracket 2 is movably sleeved with a threaded rod 16.

[0018] Please see Figure 3The welding wire 5 passes through the inside of the conveying sleeve 3, the traction sleeve 1 and the traction tube 4 in sequence. The end of the traction tube 4 is located at the lower end of the welding machine. By passing the welding wire 5 through the inside of the conveying sleeve 3, the welding wire 5 passes through the traction sleeve 1 and exits from the inside of the traction tube 4, ensuring that the welding wire 5 is kept in a tight and connected state during installation.

[0019] Please see Figure 5 The first washer 7 has a roller 8 movably sleeved inside, and the push rod 6 has a first spring 9 movably sleeved outside. The welding wire 5 is sequentially sleeved on the outside of the roller 8. The first spring 9 is installed between the traction sleeve 1 and the first washer 7. The first washer 7 is movably sleeved inside the traction sleeve 1. The first spring 9 applies elastic pressure to the first washer 7 to ensure that the roller 8 moves toward the object. At the same time, the roller 8 is placed crosswise inside the traction sleeve 1. After the welding wire 5 is sleeved on the outside of the roller 8, the roller 8 pulls and limits the position of the welding wire 5. At the same time, under the action of elasticity, it ensures that the welding wire 5 maintains a state of tension balance. During the process of controlling the pushing and pulling of the welding wire 5, it ensures that the welding wire 5 maintains a state of tension balance.

[0020] Please see Figure 6 The push wheels 19 installed inside the two sets of inclined rods 10 are in contact with the outside of the welding wire 5. Two sets of push wheels 19 are installed on both sides of the traction sleeve 1. The push wheels 19 installed inside the inclined rods 10 are in contact with the welding wire 5. When the push wheels 19 rotate, the two sets of push wheels 19 apply a pushing force to the welding wire 5 under the action of friction, which can push the welding wire 5 for wire feeding and ensure the stability of wire feeding.

[0021] Please see Figure 1 The push wheel 19 is externally fixedly connected to a first gear 11. A first rack chain 13 is externally sleeved on the first gear 11 and the second gear 12. When the second gear 12 rotates, it drives the first gear 11 to rotate synchronously, ensuring that the push wheel 19 can apply a thrust to the welding wire 5 during the rotation of the inclined rod 10.

[0022] Please see Figure 6Two sets of second gears 12 are respectively fixedly connected to the outside of a third gear 14 and a fourth gear 15. A gear set 20 is installed on the outside of the bracket 2. The gear set 20 contains two sets of gears. One set of gears meshes with the third gear 14, and the other set of gears is kept on the same horizontal plane with the fourth gear 15. The other set of gears and the fourth gear 15 are sleeved with a second rack chain 21. By starting the motor installed on the outside of the third gear 14, the motor drives a set of first gears 11 to rotate through the rotation of the first rack chain 13. At the same time, the third gear 14 drives the fourth gear 15 to rotate synchronously in the opposite direction under the assistance of the gear set 20 and the second rack chain 21. That is, the two sets of push wheels 19 rotate in opposite directions. During the rotation of the two sets of push wheels 19, the push wheels 19 can push the welding wire 5 to move outward.

[0023] Please see Figure 6 The end of the threaded rod 16 is fixedly connected to a second washer 17. A second spring 18 is installed between the second washer 17 and the inclined rod 10. By rotating the threaded rod 16, the threaded rod 16 pushes the second washer 17 to move inward. That is, the second washer 17 applies pressure to the inclined rod 10 through the second spring 18. Depending on the diameter of the welding wire 5, the angle of the two sets of inclined rods 10 can be adjusted to ensure that the push wheel 19 applies pressure to the outside of the welding wire 5.

[0024] Working principle: In use, the traction sleeve 1 is installed on the welding device, and the welding material conveying device is installed on the outside of the conveying sleeve 3. The front end of the traction tube 4 faces the welding point. The welding wire 5 passes through the inside of the conveying sleeve 3, the traction sleeve 1, and the traction tube 4 in sequence. When the third gear 14 rotates, it drives the fourth gear 15 to rotate synchronously under the assistance of the gear set 20 and the second rack chain 21. At the same time, under the transmission action of the second gear 12, the first rack chain 13, and the first gear 11, the push wheel 19 is driven to rotate synchronously in the opposite direction. That is, when the two sets of push wheels 19 rotate, the two sets of push wheels 19 push the welding wire 5 to move outward, thus realizing push-pull wire feeding. And according to the distance between the welding wires 5 Unlike other methods, rotating the threaded rod 16 pushes the second washer 17 inward, which adjusts the inward movement distance of the push wheel 19. This ensures that when pushing different welding wires 5, the pressure is balanced and does not interfere with the transmission part of the transmission mechanism. When the angle of the inclined rod 10 is adjusted, the second rack chain 21 is kept loose. That is, when the angle of the inclined rod 10 is finely adjusted, it does not interfere with the transmission between the second rack chain 21 and the gear set 20. At the same time, the welding wire 5 is set inside the traction sleeve 1. When the welding wire 5 is retracted, the roller 8 applies pressure under the elastic action of the first spring 9 to ensure that the welding wire 5 maintains a state of tension balance.

[0025] 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 push-pull wire feeding mechanism for laser welding, comprising a traction sleeve (1), wherein a set of brackets (2) are fixedly connected to both sides of the traction sleeve (1), and a conveying sleeve (3) is fixedly connected to the outside of the set of brackets (2), characterized in that: Another set of brackets (2) is externally fixedly connected to a traction pipe (4), and a welding wire (5) is installed through the inside of the conveying sleeve (3). Push rods (6) are sequentially and movably sleeved on both sides inside the traction sleeve (1). A first gasket (7) is fixedly connected to the upper end of the push rod (6). Inclined rods (10) are movably sleeved on both sides of the end of the traction sleeve (1). A push wheel (19) is movably sleeved inside the other end of the inclined rod (10). A second gear (12) is movably sleeved on the outside of one end of the inclined rod (10). A threaded rod (16) is movably sleeved inside the bracket (2).

2. The push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: The welding wire (5) passes through the inside of the conveying sleeve (3), the traction sleeve (1) and the traction tube (4) in sequence, with the end of the traction tube (4) located at the lower end of the welding machine.

3. The push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: The first gasket (7) is movably fitted with a roller (8), the push rod (6) is fitted with a first spring (9), the welding wire (5) is sequentially fitted around the outside of the roller (8), and the first spring (9) is installed between the traction sleeve (1) and the first gasket (7).

4. A push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: The push wheels (19) installed inside the two sets of inclined rods (10) are in contact with the outside of the welding wire (5), and two sets of push wheels (19) are installed on both sides of the traction sleeve (1).

5. A push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: The drive wheel (19) is fixedly connected to the outside of a first gear (11), and a first rack chain (13) is sleeved on the outside of the first gear (11) and the second gear (12).

6. A push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: Two sets of second gears (12) are respectively fixedly connected to the outside of a third gear (14) and a fourth gear (15). A gear set (20) is installed on the outside of the bracket (2). The gear set (20) includes two sets of gears. One set of gears meshes with the third gear (14), and the other set of gears is kept on the same horizontal plane with the fourth gear (15). The other set of gears is sleeved with a second rack chain (21) on the outside of the fourth gear (15).

7. A push-pull wire feeding mechanism for laser welding according to claim 1, characterized in that: The end of the threaded rod (16) is fixedly connected to a second washer (17), and a second spring (18) is installed between the second washer (17) and the inclined rod (10).

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