A continuous wire feeding device for hydraulic cylinder welding

Abstract

The application provides a continuous wire feeding device for hydraulic cylinder welding, and relates to the technical field of wire feeding devices.The wire feeding device comprises a welding wire conveyor and a welding wire body.A guide groove is formed in the welding wire conveyor, and the welding wire body is located in the guide groove.At least two groups of auxiliary driving assemblies and a main driving assembly are arranged in the welding wire conveyor.Each group of auxiliary driving assembly and main driving assembly is located on the two sides of the welding wire body.Manual dialing is prone to varying in length each time, and the length of each dialing is uncontrollable, which may cause problems such as incomplete welding and lack of welding during welding.The device drives the welding wire body to move downward without stopping by using the welding wire conveyor, and the welding wire body does not need to be manually moved downward by fingers, which greatly improves the stability of welding.Meanwhile, holding the welding wire conveyor can better control the angle of the end of the welding wire body, further improving the controllability of welding.

Description

Technical Field

[0001] This invention belongs to the technical field of wire feeding equipment, and more specifically, relates to a continuous wire feeding device for hydraulic cylinder welding. Background Technology

[0002] In the field of hydraulic cylinder welding, the stability, safety, and welding quality of the welding wire feeding and welding operation are key considerations. However, existing welding methods and equipment have many problems that urgently need to be solved.

[0003] In traditional hydraulic cylinder welding, the welding wire is primarily fed manually. Because manual operation makes it difficult to ensure consistent wire length with each stroke and the distance cannot be precisely controlled, frequent quality issues such as missed welds and incomplete welds occur, severely impacting welding stability and finished product quality. Furthermore, controlling the wire tip angle manually further reduces welding controllability.

[0004] In terms of welding safety, existing welding equipment does not adequately protect the operators' fingers. Molten iron splashes during welding can easily burn the operators' fingers, especially when the welding wire needs to be handled nimbly. The probability of fingers being exposed to a dangerous environment is high, posing a threat to the personal safety of the operators.

[0005] From the perspective of improving welding quality, in traditional welding methods, the transition of the molten droplets at the end of the welding wire to the molten pool is uneven during the combustion process. This can easily lead to large droplets or uneven dripping, resulting in welding spatter and affecting welding quality. Moreover, gases and impurities in the molten pool cannot escape sufficiently, increasing the probability of welding defects such as porosity and slag inclusions.

[0006] Furthermore, existing welding equipment has poor adaptability to welding wires of different thicknesses. Typically, a single piece of equipment can only accommodate welding wires of a specific specification. When welding wires of different thicknesses is required, it often necessitates replacing the entire equipment or making complex adjustments, resulting in cumbersome operations and high costs. Moreover, during the wire feeding process, if the main drive assembly cannot fully contact the welding wire, it is difficult to ensure the stable downward movement of the wire, thus affecting the continuity and stability of the welding process.

[0007] Furthermore, if impurities and rust on the surface of the welding wire are not removed, they will affect its melting effect during welding, thus affecting the welding quality. However, existing welding equipment often lacks online rust removal capabilities for the welding wire, or the rust removal effect is poor.

[0008] In summary, existing hydraulic cylinder welding technologies have many shortcomings in terms of wire feeding stability, operational safety, welding quality improvement, wire adaptability, and wire rust removal, and cannot meet the requirements of modern industry for high-quality and high-efficiency hydraulic cylinder welding. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a continuous wire feeding device for hydraulic cylinder welding.

[0010] A continuous wire feeding device for hydraulic cylinder welding includes a wire feeder and a wire body. The wire feeder has a guide groove inside, and the wire body is located inside the guide groove. At least two sets of auxiliary drive components and a main drive component are arranged inside the wire feeder. Each set of auxiliary drive components and main drive components is located on both sides of the wire body. The main drive component controls the movement of the wire body within the wire feeder. The auxiliary drive components assist the main drive components in feeding wire bodies of different sizes. Each auxiliary drive component includes a rotatable roller frame, a first drive wheel, and a drive disc. The roller frame and the first drive wheel are used to clamp the wire body. On both sides, the sidewalls of the drive disc are provided with at least two movable trapezoidal push plates. When the drive disc rotates, the drive disc drives the welding wire body to rotate through the trapezoidal push plates. The rotation of the first drive wheel is used to assist the welding wire body in moving within the welding wire conveyor. The main drive assembly includes a rotatable second drive wheel and a third drive wheel. The second drive wheel and the third drive wheel are located on both sides of the welding wire body. The rotation of the second drive wheel and the third drive wheel can drive the welding wire body to move downward. A rust removal assembly is fixedly installed inside the welding wire conveyor near the bottom. The rust removal assembly includes two mounting discs and at least two telescopic frames, and the welding wire body is inserted inside the rust removal assembly.

[0011] Preferably, a conical body is fixedly installed at both the upper and lower ends of the welding wire feeder, a start button is fixedly installed on the side wall of the welding wire feeder, a protective cover is fixedly installed on the surface of the conical body near the bottom of the welding wire feeder, and the inclined opening above the protective cover is away from the start button. At least two rubber sleeves are fixedly installed inside the guide groove, and the welding wire body is inserted into the rubber sleeves. The auxiliary drive assembly also includes a second motor and a driver. A first gear is fixedly installed on the surface of the output shaft of the second motor, and a second gear is fixedly installed on the back of the drive disc, and the second gear meshes with the first gear.

[0012] Preferably, each drive disc has at least two inner sliding grooves on its sidewall, each trapezoidal push plate is installed in the inner sliding groove, and a second spring is fixedly installed between the trapezoidal push plate and the inner wall of the inner sliding groove. Each trapezoidal push plate is in an inclined state in the inner sliding groove, and the outwardly protruding side of the trapezoidal push plate faces the welding wire body. An anti-slip pad is fixedly installed at the end of the sidewall of each trapezoidal push plate, and each anti-slip pad has at least two grooves on its sidewall.

[0013] Preferably, a drive frame is sleeved on the lead screw at the end of each driver, and a rotating shaft is rotatably installed between the side wall of each wheel frame and the drive frame. The drive frame is slidably installed inside the welding wire feeder, and the driver is fixed inside the welding wire feeder. A telescopic cylinder is fixedly installed in the middle of each wheel frame, and a first spring is provided inside the telescopic cylinder. A connecting sleeve is fixedly installed in the middle of the wheel frame located on the outer ring of the telescopic cylinder. A limit frame is provided above the rear side of the wheel frame. The limit frame is fixed inside the welding wire feeder, and the inner walls on both sides of the wheel frame are in contact with the sides of the limit frame.

[0014] Preferably, the main drive assembly further includes a third motor, the output shaft of the third motor is fixedly connected to the side wall of the second drive wheel, and a third gear is fixedly mounted on the surface of the output shaft of the third motor. A fourth gear is fixedly mounted on the side wall of the third drive wheel, and the third gear meshes with the fourth gear.

[0015] Preferably, the two mounting plates are interlocked one above the other, and at least two arc-shaped grooves are equidistantly provided on the inner rings of the two mounting plates. The back of each telescopic frame faces the arc-shaped groove, and at least two third springs are fixedly installed between the back of each telescopic frame and the side wall of the arc-shaped groove. A friction ball is rotatably installed inside each telescopic frame, and each friction ball faces the welding wire body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, the rotation of the first drive wheel assists in moving the welding wire body downwards. Simultaneously, the continuous rotation of the drive disc drives the trapezoidal pusher plate to rotate. Multiple trapezoidal pusher plates continuously drive the welding wire body to rotate. During hydraulic cylinder welding, the welding wire body continuously shortens as it burns. At this time, it is necessary to manually push the welding wire body forward with fingers. Manual pushing is prone to inconsistent lengths and uncontrollable distances, leading to problems such as missed welds and incomplete welds. This device uses a welding wire feeder to continuously move the welding wire body downwards, eliminating the need for manual pushing with fingers, greatly improving welding stability. At the same time, holding the welding wire feeder allows for better control of the angle of the welding wire body end, further improving welding controllability.

[0018] In this invention, the user's thumb is positioned against the start button. When welding the hydraulic cylinder, the user's remaining three fingers are positioned above the protective cover, which is tilted backward. This provides excellent protection for the user's other three fingers and effectively prevents injury from molten iron splashing during welding. At the same time, both ends of the welding wire feeder are equipped with tapered bodies, which facilitates the insertion of the welding wire and allows the user to easily see the position and length of the welding wire during welding, thus providing convenience for welding the hydraulic cylinder.

[0019] In this invention, the second motor starts and drives the first gear and the first drive wheel to rotate. The rotation of the first drive wheel drives the welding wire body to move downward. Two sets of auxiliary drive components are located between the two sets of main drive components, which can assist in driving the movement of the welding wire body. At the same time, the rotation of the first gear drives the rotation of the second gear, which in turn drives the rotation of the drive disk. The rotation of the drive disk drives the three trapezoidal push plates on the side to rotate. When the trapezoidal push plates rotate and come into contact with the welding wire body, they exert a certain lateral thrust on the welding wire body, causing the welding wire body to rotate slightly at a small angle. The continuous rotation of multiple trapezoidal push plates drives the welding wire body to rotate continuously. The rotation of the welding wire body can make the molten droplets at the end of the welding wire body transition to the molten pool more evenly, reducing spatter caused by excessively large droplets or uneven dripping, and improving welding stability. The rotation action can slightly stir the molten pool, helping the gases (such as hydrogen and oxygen) and impurities in the molten pool to escape more fully, thereby reducing the generation rate of welding defects such as porosity and slag inclusions.

[0020] In this invention, the driver drives the drive frame to move inward via a lead screw. The movement of the drive frame drives the rotating wheel frame to move via a rotating shaft. The further the rotating wheel frame moves inward, the smaller the angle of the limiting frame becomes. At this time, the first spring inside the telescopic cylinder pulls both ends of the rotating wheel frame inward, while the connecting sleeve retracts. At this time, the rotating wheel frame and the connecting sleeve can fit with the welding wire body. Similarly, when the welding wire body is thicker, the driver drives the drive frame to move outward, the rear angle of the limiting frame increases, and both ends of the rotating wheel frame are stretched. At this time, the connecting sleeve is stretched and can fit with the thicker welding wire body. By designing the rotating wheel frame to be variable in size and the distance of the rotating wheel frame can be changed, it can adapt to welding wire bodies of different thicknesses. Furthermore, the rotating wheel frame can fit with welding wire bodies of different thicknesses. Thus, when the main drive component and the welding wire body cannot fit completely, the auxiliary drive component can ensure that the welding wire body can move down stably.

[0021] In this invention, when the welding wire body moves into the rust removal component, the outer wall of the welding wire body is in contact with multiple friction balls. The friction between the multiple friction balls and the surface of the welding wire body can remove impurities and rust from the surface of the welding wire body, ensuring that the welding wire body can melt just right when welding the hydraulic cylinder. In addition, the back of each telescopic frame is supported by multiple third springs, which can maintain the fit between the friction balls and the welding wire body, and can adapt to welding wire bodies of different thicknesses. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the welding wire conveyor structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the wheel frame structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the rubber sleeve structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the first drive wheel structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the drive disk structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the connecting sleeve structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the wheel frame structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the installation disk structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the telescopic frame structure of the present invention.

[0031] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: 1. Welding wire feeder; 11. Start button; 12. Protective cover; 13. Conical body; 14. Welding wire body; 15. Rubber sleeve; 16. Guide groove; 2. Auxiliary drive assembly; 21. Rotary wheel frame; 22. Driver; 23. Connecting sleeve; 24. Telescopic cylinder; 25. First spring; 26. Limiting frame; 27. Rotating shaft; 28. Drive frame; 29. ​​Second motor; 3. First gear; 3 1. First drive wheel; 33. Second gear; 34. Drive disc; 35. Inner groove; 36. Trapezoidal push plate; 37. Anti-slip pad; 38. Groove; 39. Second spring; 4. Main drive assembly; 41. Third motor; 42. Second drive wheel; 43. Third gear; 44. Fourth gear; 45. Third drive wheel; 46. Mounting disc; 47. Arc groove; 48. Telescopic frame; 49. Friction ball; 5. Rust removal assembly; 51. Third spring. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] Please see Figures 1-8This invention provides a continuous wire feeding device for hydraulic cylinder welding, including a wire feeder 1 and a wire body 14. The wire feeder 1 has a guide groove 16 inside, and the wire body 14 is located inside the guide groove 16. The wire feeder 1 has at least two sets of auxiliary drive components 2 and main drive components 4 inside, each set located on both sides of the wire body 14. The main drive components 4 control the movement of the wire body 14 within the wire feeder 1, and the auxiliary drive components 2 assist the main drive components 4 in feeding wire bodies 14 of different sizes. The auxiliary drive components 2 include a rotatable wheel frame 2. 1. A first drive wheel 31 and a drive disk 34, the wheel frame 21 and the first drive wheel 31 are used to clamp the two sides of the welding wire body 14. The side wall of the drive disk 34 is provided with at least two movable trapezoidal push plates 36. When the drive disk 34 rotates, the drive disk 34 drives the welding wire body 14 to rotate through the trapezoidal push plates 36, and the rotation of the first drive wheel 31 is used to assist the welding wire body 14 to move within the welding wire conveyor 1. The main drive assembly 4 includes a rotatable second drive wheel 42 and a third drive wheel 45. The second drive wheel 42 and the third drive wheel 45 are located on both sides of the welding wire body 14, and the rotation of the second drive wheel 42 and the third drive wheel 45 can drive the welding wire body 14 to rotate. The welding wire body 14 moves downward. During hydraulic cylinder welding, the user first inserts the welding wire body 14 from the end of the welding wire feeder 1. When the welding wire body 14 contacts the main drive assembly 4, the user presses the start button 11 with their thumb. At this time, the main drive assembly 4 and the auxiliary drive assembly 2 are activated. The second drive wheel 42 and the third drive wheel 45 inside the main drive assembly 4 rotate, driving the welding wire body 14 to move downward. When the end of the welding wire body 14 contacts the auxiliary drive assembly 2, the first drive wheel 31 rotates to assist in driving the welding wire body 14 to move downward. At the same time, the drive disc 34 rotates continuously, which drives the trapezoidal push plate 36 to rotate. Multiple trapezoidal push plates 36 will... The welding wire body 14 is continuously rotated. During hydraulic cylinder welding, the welding wire body 14 will continuously shorten as it burns. At this time, it is necessary to manually push the welding wire body 14 forward with your fingers. Manual pushing is prone to inconsistent lengths and uncontrollable distances each time, which can easily lead to missed welds or incomplete welds. This device uses a welding wire feeder 1 to continuously move the welding wire body 14 downward, eliminating the need for manual pushing of the welding wire body 14 downward, greatly improving the stability of welding. At the same time, holding the welding wire feeder 1 allows for better control of the angle of the end of the welding wire body 14, further improving the controllability of welding.

[0034] A rust removal assembly 5 is fixedly installed inside the welding wire feeder 1 near its bottom end. The rust removal assembly 5 includes two mounting plates 46 and at least two telescopic frames 48. The welding wire body 14 is inserted inside the rust removal assembly 5. When the welding wire body 14 moves out of the rust removal assembly 5, the end of the welding wire body 14 is blocked and slowed down by the rust removal assembly 5 as a whole. This can ensure the stability of the welding wire body 14 when it moves and prevent the welding wire body 14 from shaking when it moves due to the inconsistent transmission of multiple sets of auxiliary drive assemblies 2 and main drive assembly 4. This further improves the stability of the welding wire body 14 when welding the hydraulic cylinder.

[0035] In this embodiment, as Figures 1 to 3 The welding wire feeder 1 has conical bodies 13 fixedly installed at both its upper and lower ends. A start button 11 is fixedly installed on the side wall of the welding wire feeder 1. A protective cover 12 is fixedly installed on the surface of the conical body 13 near the bottom of the welding wire feeder 1, and the inclined opening above the protective cover 12 is away from the start button 11. At least two rubber sleeves 15 are fixedly installed inside the guide groove 16. The welding wire body 14 is inserted into the rubber sleeve 15. The user holds the welding wire feeder 1 with his index finger and thumb, with the user's thumb touching the start button 11. When welding the hydraulic cylinder, the user's remaining three fingers are located above the protective cover 12, and the protective cover 12 is tilted backward, so it can protect the user's remaining three fingers well and effectively prevent the user's fingers from being injured by splashed molten iron during welding. At the same time, the welding wire feeder 1 has conical bodies 13 at both ends, which can facilitate the insertion of the welding wire body 14, and the other end can make it easy to see the position and length of the welding wire body 14 during welding, which improves the convenience of welding the hydraulic cylinder.

[0036] In this embodiment, as Figure 2 , Figure 4 and Figure 5The auxiliary drive assembly 2 also includes a second motor 29 and a driver 22. A first gear 3 is fixedly mounted on the output shaft surface of the second motor 29, and a second gear 33 is fixedly mounted on the back of the drive disk 34, with the second gear 33 meshing vertically with the first gear 3. Each drive disk 34 has at least two inner grooves 35 on its sidewall, and each trapezoidal push plate 36 is installed in the inner groove 35. A second spring 39 is fixedly installed between the trapezoidal push plate 36 and the inner wall of the inner groove 35. Each trapezoidal push plate 36 is inclined in the inner groove 35, with the outwardly protruding side of the trapezoidal push plate 36 facing the welding wire body 14. An anti-slip pad 37 is fixedly mounted at the end of the sidewall of each trapezoidal push plate 36, and each anti-slip pad 37 has at least two grooves 38 on its sidewall. When the welding wire body 14 moves to the auxiliary drive assembly 2, the second motor 29 starts to drive the first gear 3 and the first drive wheel 31 to rotate. The rotation of the first drive wheel 31 drives the welding wire... The main body 14 moves downwards, and the two sets of auxiliary drive components 2 are located between the two sets of main drive components 4. They can assist in moving the welding wire body 14. At the same time, the rotation of the first gear 3 will drive the rotation of the second gear 33, and the rotation of the second gear 33 will drive the rotation of the drive disk 34. The rotation of the drive disk 34 will drive the three trapezoidal push plates 36 on the side to rotate. When the trapezoidal push plates 36 rotate and come into contact with the welding wire body 14, they will exert a certain lateral thrust on the welding wire body 14, and the welding wire body 14 will rotate slightly at a small angle. The continuous rotation of multiple trapezoidal push plates 36 will drive the welding wire body 14 to rotate continuously. Rotating the welding wire body 14 can make the molten droplets at the end of the welding wire body 14 transition to the molten pool more evenly, reduce spatter caused by excessively large molten droplets or uneven dripping, and improve welding stability. The rotation action can slightly stir the molten pool, help the gases (such as hydrogen and oxygen) and impurities in the molten pool to escape more fully, thereby reducing the generation rate of welding defects such as porosity and slag inclusions.

[0037] When the trapezoidal push plate 36 is in contact with the welding wire body 14, the anti-slip pad 37 on the side of the trapezoidal push plate 36 will contact the welding wire body 14. The surface of the anti-slip pad 37 is provided with multiple grooves 38, which can improve the friction between the anti-slip pad 37 and the welding wire body 14. At the same time, the back of the trapezoidal push plate 36 is supported by two second springs 39, which can maintain the fit between the trapezoidal push plate 36 and the welding wire body 14. While providing the ability to push the welding wire body 14 to rotate, it can also keep itself retracted into the inner groove 35.

[0038] In this embodiment, as Figure 2 , Figure 4 , Figure 6 and Figure 7Each drive 22 has a drive frame 28 sleeved around the lead screw at its end, and a rotating shaft 27 is rotatably mounted between the side wall of each wheel frame 21 and the drive frame 28. The drive frame 28 is slidably mounted inside the welding wire feeder 1, and the drive 22 is fixed inside the welding wire feeder 1. A telescopic cylinder 24 is fixedly mounted in the middle of each wheel frame 21, and a first spring 25 is installed inside the telescopic cylinder 24. A connecting sleeve 23 is fixedly mounted in the middle of the wheel frame 21 located on the outer ring of the telescopic cylinder 24. A limit frame 26 is provided above the rear side of the wheel frame 21. The limit frame 26 is fixed inside the welding wire feeder 1, and the inner walls on both sides of the wheel frame 21 are in contact with the sides of the limit frame 26. Since different welding wire bodies 14 have different thicknesses, when a thinner welding wire body 14 is encountered, the drive 22 (the drive 22 consists of a motor and a lead screw, and the lead screw is fixedly connected to the output shaft of the drive 22) is activated. The drive 22 drives the drive frame 28 to move inward through the lead screw. The moving frame 28 moves, driving the rotating wheel frame 21 to move via the rotating shaft 27. The more the rotating wheel frame 21 moves inward, the smaller the angle of the limiting frame 26 becomes. At this time, the first spring 25 inside the telescopic cylinder 24 pulls both ends of the rotating wheel frame 21 inward, while the connecting sleeve 23 retracts. At this point, the rotating wheel frame 21 and the connecting sleeve 23 can fit against the welding wire body 14. Similarly, when the welding wire body 14 is thicker, the driver 22 drives the driving frame 28 to move outward, increasing the rear angle of the limiting frame 26, and the two ends of the rotating wheel frame 21... The end will be stretched, and the connecting sleeve 23 will be stretched so that it can fit with the thicker welding wire body 14. By designing the roller frame 21 to be variable in size and the distance of the roller frame 21 can be changed, it can adapt to welding wire bodies 14 of different thicknesses. Furthermore, the roller frame 21 can fit with welding wire bodies 14 of different thicknesses. Thus, when the main drive component 4 and the welding wire body 14 cannot fit completely, the auxiliary drive component 2 can ensure that the welding wire body 14 can move down stably.

[0039] In this embodiment, as Figure 2 and Figure 4 The main drive assembly 4 also includes a third motor 41. The output shaft of the third motor 41 is fixedly connected to the side wall of the second drive wheel 42, and a third gear 43 is fixedly mounted on the surface of the output shaft of the third motor 41. A fourth gear 44 is fixedly mounted on the side wall of the third drive wheel 45, and the third gear 43 meshes with the fourth gear 44. When the welding wire body 14 is moved downward, the third motor 41 operates to drive the third gear 43 and the second drive wheel 42 to rotate. At the same time, the third gear 43 drives the third drive wheel 45 to rotate through the fourth gear 44. The synchronous rotation of the second drive wheel 42 and the third drive wheel 45 can drive the welding wire body 14 to move downward.

[0040] In this embodiment, as Figure 2 , Figure 4 , Figure 8 and Figure 9Two mounting plates 46 are interlocked vertically. At least two arc-shaped grooves 47 are equidistantly opened on the inner rings of the two mounting plates 46. The back of each telescopic frame 48 faces the arc-shaped groove 47, and at least two third springs 51 are fixedly installed between the back of each telescopic frame 48 and the side wall of the arc-shaped groove 47. Friction balls 49 are rotatably installed inside each telescopic frame 48, and each friction ball 49 faces the welding wire body 14. When the welding wire body 14 moves down into the rust removal component 5, the outer wall of the welding wire body 14 is in contact with multiple friction balls 49. The friction between the multiple friction balls 49 and the surface of the welding wire body 14 can remove impurities and rust from the surface of the welding wire body 14, ensuring that the welding wire body 14 can melt just right when welding the hydraulic cylinder. The back of each telescopic frame 48 is supported by multiple third springs 51, which can maintain the fit between the friction balls 49 and the welding wire body 14, and can adapt to welding wire bodies 14 of different thicknesses.

[0041] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A continuous wire feeding device for hydraulic cylinder welding, comprising a wire feeder (1) and a wire body (14), characterized in that: The wire feeder (1) has a guide groove (16) inside, and the wire body (14) is located inside the guide groove (16). The wire feeder (1) is provided with at least two sets of auxiliary drive components (2) and main drive components (4). Each set of auxiliary drive components (2) and main drive components (4) is located on both sides of the wire body (14). The main drive component (4) is used to control the movement of the wire body (14) inside the wire feeder (1). The auxiliary drive component (2) is used to assist the main drive component (4) in conveying wire bodies (14) of different sizes. The auxiliary drive assembly (2) includes a rotatable wheel frame (21), a first drive wheel (31) and a drive disk (34). The wheel frame (21) and the first drive wheel (31) are used to clamp the two sides of the welding wire body (14). The side wall of the drive disk (34) is provided with at least two movable trapezoidal push plates (36). When the drive disk (34) rotates, the drive disk (34) drives the welding wire body (14) to rotate through the trapezoidal push plates (36), and the first drive wheel (31) rotates to assist the welding wire body (14) in moving within the welding wire conveyor (1). The main drive assembly (4) includes a rotatable second drive wheel (42) and a third drive wheel (45). The second drive wheel (42) and the third drive wheel (45) are located on both sides of the welding wire body (14), and the rotation of the second drive wheel (42) and the third drive wheel (45) can drive the welding wire body (14) to move downward. The welding wire feeder (1) has a rust removal assembly (5) fixedly installed inside near the bottom end. The rust removal assembly (5) includes two mounting plates (46) and at least two telescopic frames (48), and the welding wire body (14) is inserted inside the rust removal assembly (5). The auxiliary drive assembly (2) further includes a second motor (29) and a driver (22). A first gear (3) is fixedly mounted on the output shaft surface of the second motor (29), and a second gear (33) is fixedly mounted on the back of the drive disk (34). The second gear (33) meshes with the first gear (3) in an up-down manner. Each of the drive discs (34) has at least two inner grooves (35) on its sidewall, and each trapezoidal push plate (36) is installed in the inner groove (35). A second spring (39) is fixedly installed between the trapezoidal push plate (36) and the inner wall of the inner groove (35). Each trapezoidal push plate (36) is in an inclined state in the inner groove (35). Each trapezoidal push plate (36) has an anti-slip pad (37) fixedly installed at the end of its side wall, and each anti-slip pad (37) has at least two grooves (38) on its side wall. Each of the drive (22) ends of the lead screw is fitted with a drive frame (28), and each of the wheel frame (21) has a rotating shaft (27) rotatably installed between its side wall and the drive frame (28). The drive frame (28) is slidably installed inside the welding wire feeder (1), and the drive (22) is fixed inside the welding wire feeder (1). Each of the rotating wheel frames (21) is fixedly equipped with a telescopic cylinder (24) in the middle. The telescopic cylinder (24) is equipped with a first spring (25). A connecting sleeve (23) is fixedly installed in the middle of the rotating wheel frame (21) located on the outer ring of the telescopic cylinder (24). A limit frame (26) is provided on the upper rear side of the rotating wheel frame (21). The limit frame (26) is fixed inside the welding wire conveyor (1), and the inner walls on both sides of the rotating wheel frame (21) are in contact with the two sides of the limit frame (26). Among them, the two mounting plates (46) are interlocked one above the other, and at least two arc-shaped grooves (47) are equidistantly opened on the inner ring of the two mounting plates (46). The back of each telescopic frame (48) faces the arc-shaped groove (47), and at least two third springs (51) are fixedly installed between the back of each telescopic frame (48) and the side wall of the arc-shaped groove (47). A friction ball (49) is rotatably installed inside each telescopic frame (48), and each friction ball (49) faces the welding wire body (14).

2. The continuous wire feeding device for hydraulic cylinder welding as described in claim 1, characterized in that, The upper and lower ends of the welding wire feeder (1) are fixedly installed with cone-shaped bodies (13), the side wall of the welding wire feeder (1) is fixedly installed with a start button (11), and the surface of the cone-shaped body (13) near the bottom of the welding wire feeder (1) is fixedly installed with a protective cover (12).

3. The continuous wire feeding device for hydraulic cylinder welding as described in claim 2, characterized in that, At least two rubber sleeves (15) are fixedly installed inside the guide groove (16), and the welding wire body (14) is inserted inside the rubber sleeves (15).

4. The continuous wire feeding device for hydraulic cylinder welding as described in claim 3, characterized in that, The main drive assembly (4) also includes a third motor (41), the output shaft of the third motor (41) is fixedly connected to the side wall of the second drive wheel (42), and a third gear (43) is fixedly installed on the surface of the output shaft of the third motor (41). A fourth gear (44) is fixedly installed on the side wall of the third drive wheel (45), and the third gear (43) meshes with the fourth gear (44).

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