Multi-wheel feeding device for laser welding

Abstract

The invention discloses a multi-wheel feeding device for laser welding, and relates to the technical field of welding, the rear end of a stepped feeding rod is connected with a stepped feeding plate, the rear end of the stepped feeding plate is connected with a connecting plate through a receiving plate, and the stepped feeding plate is connected with a concentrating roller through a collecting mechanism; the automatic feeding device has the advantages that welding position deviation caused by posture deviation is avoided, positioning errors are further reduced, the positioning response speed of intelligent welding is greatly increased, the feeding device is divided into independent areas, the feeding device is simple in structure and convenient to operate, the labor intensity of workers is reduced, the labor intensity of the workers is reduced, and the labor intensity of the workers is reduced. And meanwhile, the length of the area is more flexible and convenient to adjust, extrusion damage of heavy materials to light materials can be avoided, the overall quality level of intelligent welding is further stabilized and improved, and the production efficiency of intelligent welding is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a multi-wheel feeding device for laser welding. Background Technology

[0002] Laser welding, an advanced welding technology that uses a high-energy-density laser beam as a heat source, occupies a pivotal position in modern manufacturing. Since the birth of laser technology in the 1960s, laser welding technology has also been continuously developing and innovating. With the deepening of laboratory research, laser welding technology has gradually moved towards industrial applications. In the late 1970s, it began to show its prowess in high-precision manufacturing fields such as aerospace, automobile manufacturing, and electronics. In the aerospace field, key components of aircraft and spacecraft have extremely high requirements for welding quality and precision. Laser welding has been able to demonstrate its capabilities due to its high energy density and precise control characteristics. In the automotive industry, it is used for welding body structures and transmission systems. Its high speed and high efficiency advantages are fully demonstrated in large-scale production, enabling the welding of body structures to be completed in a short time, greatly improving production efficiency.

[0003] Common multi-wheel feeding devices lack a combined design of step adjustment and fixing mechanisms, making it impossible to precisely control the height and tilt angle of the feeding plate, adjust the conveying angle at different steps, or flexibly adjust the area range according to material specifications. When different types of materials need to be conveyed simultaneously, they can only be mixed or the equipment needs to be changed frequently, resulting in collisions and squeezing between materials, which affects the positioning accuracy and workpiece quality of subsequent welding. To address this, we propose a multi-wheel feeding device for laser welding. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-wheel feeding device for laser welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-wheel feeding device for laser welding, comprising a feeding device body, the feeding device body including a feeding frame and a precision conveying mechanism on the feeding frame, the precision conveying mechanism including a stepped feeding rod, a stepped feeding plate, a connecting plate, a partitioned column and a concentrating roller, the upper end of the feeding frame being connected to the stepped feeding rod through a stepped adjustment mechanism, the rear end of the stepped feeding rod being connected to the stepped feeding plate, and the rear end of the stepped feeding plate being connected to the connecting plate through a receiving plate, the stepped feeding plate being connected to the concentrating roller through a collecting mechanism, the upper front side of the stepped feeding plate being connected to the lower end of the partitioned column, and the upper end of the partitioned column being connected to a partitioning mechanism.

[0006] As a further aspect of the present invention: the stepped adjustment mechanism includes an adjustment screw, and the left and right sides of the inner wall of the feeding rack are respectively provided with a lifting slide groove and a lifting guide groove. The bottom wall of the lifting slide groove is rotatably connected to the lower end of the adjustment screw, and the upper end of the adjustment screw extends to the upper side of the feeding rack.

[0007] As a further embodiment of the present invention: the stepped adjustment mechanism further includes an adjustment block and a rotating shaft. The inner walls of the lifting slide and the lifting guide groove are slidably connected to the outer wall of the adjustment block. The upper ends of the two adjustment blocks are provided with internal threaded holes. The inner walls of the internal threaded holes are spirally connected to the outer wall of the adjusting screw. The sides of the two adjustment blocks that are close to each other are rotatably connected to the rotating shaft. The two rotating shafts are connected to the left and right ends of the same stepped feeding rod. The side of the adjustment block away from the rotating shaft is connected to a fixing mechanism.

[0008] As a further embodiment of the present invention: the material collection mechanism includes a lower extension plate, the upper end of the stepped feeding plate is provided with a roller groove, the lower end of the stepped feeding plate is connected to the lower extension plate, and the lower extension plate is located on one side of the roller groove. The side of the lower extension plate near the roller groove is rotatably connected to the concentrating roller, and the side of the lower extension plate away from the roller groove is connected to a drive motor, and the output end of the drive motor passes through the lower extension plate and is connected to the concentrating roller.

[0009] As a further embodiment of the present invention: the partitioning mechanism includes a partitioning frame and connecting plates. The upper rear side of the partitioning column is connected to two connecting plates. A rotating shaft is connected to the side of the two connecting plates that are close to each other. A rotating hole is opened on the front side of the left end of the partitioning frame, and the inner wall of the rotating hole is rotatably connected to the outer wall of the rotating shaft.

[0010] As a further embodiment of the present invention: the partitioning mechanism further includes a connecting block, partitioning legs, and an extension frame. The lower end of the partition frame is connected to the upper end of the partitioning legs, the front end of the partition frame is connected to the rear end of the connecting block, the rear end of the partition frame is provided with a telescopic hole, the inner wall of the telescopic hole is slidably connected to the outer wall of the extension frame, and the lower end of the extension frame extends to the outside of the partition frame. The rear end of the extension frame is provided with a connecting hole, and the connecting hole cooperates with the connecting block.

[0011] As a further embodiment of the present invention: a column fixing hole is provided on the upper front side of the stepped feeding plate, and the inner wall of the column fixing hole is slidably connected to the outer wall of the partition column. Fixing holes are provided at the lower ends of both the stepped feeding plate and the partition column, and the same screw is spirally connected to the inner walls of the two fixing holes.

[0012] As a further embodiment of the present invention: the fixing mechanism includes a fixed top frame, a fan-shaped frame, a rotating rod, and a translational fixing frame. The upper side of the adjusting block away from the rotation axis is connected to the fixed top frame and the rotating rod in sequence from top to bottom. The outer wall of the rotating rod is slidably connected to the translational fixing frame. The side of the feeding frame away from the stepped feeding plate is connected to the fan-shaped frame, and the upper end of the fan-shaped frame is provided with a fixing groove. The translational fixing frame and the fixing groove cooperate with each other.

[0013] As a further embodiment of the present invention: the rear end of the stepped feeding plate is provided with an embedded hole, the inner wall of the embedded hole is slidably connected to the outer wall of the receiving plate, and the rear end of the receiving plate is connected to the connecting plate. The outer wall of the receiving plate is connected with a rubber protrusion, and the inner wall of the embedded hole is provided with a groove, and the groove and the rubber protrusion cooperate with each other.

[0014] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows:

[0015] 1. This invention controls the height and tilt angle of the stepped feeding plate through a stepped feeding rod, a connecting plate, and a stepped adjustment mechanism. Combined with the locking of the angle by the fixing mechanism, it ensures that the material always maintains the preset posture during the conveying process, avoiding welding position deviation caused by posture deviation, further reducing positioning error, and greatly improving the positioning response speed of intelligent welding. The feeding device is divided into independent areas, which can be conveyed independently in their respective areas, avoiding position deviation caused by mutual collision, squeezing or friction. At the same time, the length adjustment of the area is more flexible and convenient, and it can avoid the squeezing and damage of light materials by heavy materials, further stabilizing and improving the overall quality level of intelligent welding, and significantly improving the production efficiency of intelligent welding.

[0016] 2. This invention adjusts the height of the adjusting block by adjusting the lead screw through threaded transmission. The receiving plate can still maintain the connection after the angle of the stepped feeding plate and the connecting plate is adjusted, avoiding gaps or misalignment between the two. This ensures that the concentrated roller does not shake or deviate when conveying at high speed or carrying heavy materials, so that the material can enter the welding station continuously and stably.

[0017] 3. This invention uses a connecting plate and a partition column for rotational connection, which can flexibly adjust the partition angle and range according to the material specifications. With the assembly connection of the connecting block and the connecting hole, it can be quickly combined to adapt to different materials. It can meet the continuous conveying needs of long materials, and can also adapt to the batch conveying of short materials by shortening the length. It can accurately fix the height position of the adjusting block, thereby stabilizing the tilt angle and height of the stepped feeding plate.

[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0019] Figure 1 This is an overall three-dimensional schematic diagram of an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0021] Figure 3 This is a three-dimensional schematic diagram of the stepped feeding rod in an embodiment of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the stepped feeding plate in an embodiment of the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of the partition frame in an embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional schematic diagram of the partitioned support legs in an embodiment of the present invention;

[0025] Figure 7 This is a three-dimensional schematic diagram of the extension frame in an embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional schematic diagram of the translational fixing frame in an embodiment of the present invention.

[0027] In the diagram: 1. Main body of the feeding device; 11. Feeding frame; 2. Precision conveying mechanism; 21. Stepped feeding rod; 22. Stepped feeding plate; 23. Connecting plate; 24. Sectional column; 25. Central roller; 3. Stepped adjustment mechanism; 31. Adjusting screw; 32. Adjusting block; 33. Rotating shaft; 34. Lifting chute; 4. Material collection mechanism; 41. Roller groove; 42. Lower extension plate; 5. Sectioning mechanism; 51. Sectioning frame; 52. Connecting plate; 53. Joining block; 54. Sectioning support leg; 55. Extension frame; 56. Joining hole; 57. Column fixing hole; 6. Fixing mechanism; 61. Fixed top frame; 62. Fan-shaped frame; 63. Fixing groove; 64. Rotating rod; 65. Translation fixing frame; 7. Receiving plate. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0029] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1

[0031] This invention discloses a multi-wheel feeding device for laser welding. In the laser welding station of a precision electronic component production workshop, continuous welding operations are required for micro metal parts of different specifications. At this time, after the laser welding equipment is debugged and the welding parts are ready, in order to ensure the efficient operation of the welding process, a multi-wheel feeding device is often used. Its precise conveying mechanism stably conveys the parts to the welding area in a preset posture. The partitioning mechanism separates and conveys different types of parts to avoid collisions. The step adjustment mechanism adjusts the conveying angle according to the size of the parts to ensure that the laser welding head can accurately align with the welding position, thereby achieving continuous and high-quality welding operations.

[0032] However, in actual production, operators found that the welding of precision electronic components requires extremely high feeding accuracy. The types of parts to be welded in the workshop are numerous and vary greatly in specifications. Traditional feeding devices are difficult to adapt to multiple parts at the same time. Moreover, the parts are prone to posture deviation due to vibration during the conveying process, which affects product quality.

[0033] Therefore, in order to effectively solve the above problems, this application proposes a multi-wheel feeding device for laser welding, as shown in the attached drawings. Figure 1-8 The feeding device includes a main body 1, which includes a feeding frame 11 and a precision conveying mechanism 2 on the feeding frame 11. The precision conveying mechanism 2 includes a stepped feeding rod 21, a stepped feeding plate 22, a connecting plate 23, a partition column 24, and a concentrating roller 25. The upper end of the feeding frame 11 is connected to the stepped feeding rod 21 through a stepped adjustment mechanism 3. The rear end of the stepped feeding rod 21 is connected to the stepped feeding plate 22, and the rear end of the stepped feeding plate 22 is connected to the connecting plate 23 through a receiving plate 7. The stepped feeding plate 22 is connected to the concentrating roller 25 through a collecting mechanism 4. The front side of the upper end of the stepped feeding plate 22 is connected to the lower end of the partition column 24, and the upper end of the partition column 24 is connected to a partitioning mechanism 5.

[0034] The concentrated rollers 25 are all inclined towards the middle, and the height of the concentrated rollers 25 from both sides to the middle is arranged in descending order.

[0035] Specifically, the stepped feeding rod 21, the connecting plate 23, and the stepped adjustment mechanism 3 are used to control the height and tilt angle of the stepped feeding plate 22. The stepped feeding plate 22 is used to accurately convey welding materials to the set position. The partition column 24 is used to divide the feeding device into different conveying areas, so that different materials can be conveyed independently. The centralized roller 25 is used to adjust the conveying position of the material while feeding, so that the material can be conveyed more accurately, thereby increasing the welding accuracy. The partitioning mechanism 5 is used to improve the partitioning effect. The fixing mechanism 6 is used to fix the tilt angle of the stepped feeding plate 22.

[0036] Example 2

[0037] The step adjustment mechanism 3 includes an adjustment screw 31. The left and right sides of the inner wall of the feeding rack 11 are respectively provided with a lifting slide 34 and a lifting guide groove. The bottom wall of the lifting slide 34 is rotatably connected to the lower end of the adjustment screw 31, and the upper end of the adjustment screw 31 extends to the upper side of the feeding rack 11.

[0038] The step adjustment mechanism 3 also includes an adjustment block 32 and a rotating shaft 33. The inner walls of the lifting slide 34 and the lifting guide groove are slidably connected to the outer wall of the adjustment block 32. The upper ends of the two adjustment blocks 32 are provided with internal threaded holes. The inner walls of the internal threaded holes are spirally connected to the outer wall of the adjusting screw 31. The sides of the two adjustment blocks 32 that are close to each other are rotatably connected to the rotating shaft 33. The two rotating shafts 33 are connected to the left and right ends of the same step feeding rod 21. The side of the adjustment block 32 away from the rotating shaft 33 is connected to a fixing mechanism 6.

[0039] The material collection mechanism 4 includes a lower extension plate 42. The upper end of the stepped feeding plate 22 is provided with a roller groove 41. The lower end of the stepped feeding plate 22 is connected to the lower extension plate 42, and the lower extension plate 42 is located on one side of the roller groove 41. The side of the lower extension plate 42 close to the roller groove 41 is rotatably connected to the concentrating roller 25. The side of the lower extension plate 42 away from the roller groove 41 is connected to a drive motor, and the output end of the drive motor passes through the lower extension plate 42 and is connected to the concentrating roller 25.

[0040] The rear end of the stepped feeding plate 22 is provided with an embedded hole. The inner wall of the embedded hole is slidably connected to the outer wall of the receiving plate 7. The rear end of the receiving plate 7 is connected to the connecting plate 23. The outer wall of the receiving plate 7 is connected with a rubber protrusion. The inner wall of the embedded hole is provided with a groove, and the groove and the rubber protrusion cooperate with each other.

[0041] Specifically, the adjusting screw 31 is used to adjust the height of the adjusting block 32, the adjusting block 32 and the rotating shaft 33 are used to control the height of the stepped feeding plate 22 and the connecting plate 23, the roller groove 41 and the lower extension plate 42 are used to install the concentrated roller 25, and the receiving plate 7 is used to connect the stepped feeding plate 22 and the connecting plate 23 so that the stepped feeding plate 22 and the connecting plate 23 can still be connected together after the angle is adjusted.

[0042] Example 3

[0043] The partitioning mechanism 5 includes a partitioning frame 51 and a connecting plate 52. The upper rear side of the partitioning column 24 is connected to two connecting plates 52. A rotating shaft is connected to the side of the two connecting plates 52 that are close to each other. A rotating hole is opened on the front side of the left end of the partitioning frame 51, and the inner wall of the rotating hole is rotatably connected to the outer wall of the rotating shaft.

[0044] The partitioning mechanism 5 also includes a connecting block 53, a partitioning support leg 54, and an extension frame 55. The lower end of the partitioning frame 51 is connected to the upper end of the partitioning support leg 54, the front end of the partitioning frame 51 is connected to the rear end of the connecting block 53, the rear end of the partitioning frame 51 is provided with a telescopic hole, the inner wall of the telescopic hole is slidably connected to the outer wall of the extension frame 55, and the lower end of the extension frame 55 extends to the outside of the partitioning frame 51. The rear end of the extension frame 55 is provided with a connecting hole 56, and the connecting hole 56 cooperates with the connecting block 53.

[0045] The upper front side of the stepped feeding plate 22 is provided with a column fixing hole 57, and the inner wall of the column fixing hole 57 is slidably connected to the outer wall of the partition column 24. The lower ends of the stepped feeding plate 22 and the partition column 24 are both provided with fixing holes, and the inner walls of the two fixing holes are spirally connected with the same screw.

[0046] The fixing mechanism 6 includes a fixed top frame 61, a fan-shaped frame 62, a rotating rod 64, and a translation fixing frame 65. The upper side of the adjusting block 32 away from the rotating shaft 33 is connected to the fixed top frame 61 and the rotating rod 64 from top to bottom. The outer wall of the rotating rod 64 is slidably connected to the translation fixing frame 65. The side of the feeding frame 11 away from the stepped feeding plate 22 is connected to the fan-shaped frame 62. The upper end of the fan-shaped frame 62 is provided with a fixing groove 63, and the translation fixing frame 65 cooperates with the fixing groove 63.

[0047] Specifically, the partition frame 51 is used to divide the conveying area, the connecting plate 52 is used to rotatably connect the partition frame 51 to the partition column 24, so as to facilitate the adjustment of the state of the partition frame 51, the connecting block 53 and the connecting hole 56 are used to connect with different partition columns 24, so that the area division has an assembly effect and improves the flexibility of the area division, the partition support leg 54 is used to support the partition frame 51, the extension frame 55 is used to adjust the partition length of the partition frame 51, the fixed top frame 61 is used to fix the angle position of the translation fixed frame 65, the fan-shaped frame 62 is used to cooperate with the translation fixed frame 65 to fix the height position of the adjusting block 32, the rotating rod 64 is used to adjust the working state of the translation fixed frame 65, and the fixing groove 63 is used to limit the position of the translation fixed frame 65.

[0048] Working principle:

[0049] First, place the partition column 24 into the corresponding column fixing hole 57 and fix the partition column 24 with screws. At the same time, adjust the angle of the partition frame 51 so that the partition support leg 54 of the partition frame 51 contacts the upper end of the feeding frame 11, thereby completing the division of the conveying area. Then, place the welding material on the feeding frame 11 of the corresponding conveying area and start the drive motor. Use the drive motor to drive the concentrated roller 25 to rotate, and use the rotation of the concentrated roller 25 to convey the welding material.

[0050] When it is necessary to adjust the tilt angle of the stepped feeding plate 22 and the connecting plate 23, rotate the corresponding adjusting screw 31. Use the rotation of the adjusting screw 31 to adjust the height of the adjusting block 32. At this time, the adjusting block 32 will synchronously drive the stepped feeding rod 21 to rise and fall. The rise and fall of the stepped feeding rod 21 will cause the rotating shaft 33 to rotate, thereby completing the adjustment of the tilt angle of the stepped feeding plate 22 and the connecting plate 23.

[0051] After adjusting the tilt angle of the stepped feeding plate 22 and the connecting plate 23, rotate the translation fixing frame 65 and place it on the upper end of the fan-shaped frame 62. Then, push the translation fixing frame 65 to the lower end of the fixed top frame 61 so that the translation fixing frame 65 is inserted into the lower side of the fixed top frame 61, fixing the translation fixing frame 65 above the fan-shaped frame 62 to prevent the translation fixing frame 65 from rotating. At this point, the position fixing of the adjusting block 32 is completed, and the entire process ends.

[0052] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0053] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0055] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A multi-wheel feeding device for laser welding, comprising a feeding device body (1), wherein the feeding device body (1) includes a feeding frame (11) and a precision conveying mechanism (2) on the feeding frame (11), characterized in that: The precision conveying mechanism (2) includes a stepped feeding rod (21), a stepped feeding plate (22), a connecting plate (23), a partition column (24), and a concentrating roller (25). The upper end of the feeding frame (11) is connected to the stepped feeding rod (21) through a stepped adjustment mechanism (3). The rear end of the stepped feeding rod (21) is connected to the stepped feeding plate (22), and the rear end of the stepped feeding plate (22) is connected to the connecting plate (23) through a receiving plate (7). The stepped feeding plate (22) is connected to the concentrating roller (25) through a material collection mechanism (4). The front side of the upper end of the stepped feeding plate (22) is connected to the lower end of the partition column (24), and the upper end of the partition column (24) is connected to a partitioning mechanism (5).

2. The multi-wheel feeding device for laser welding according to claim 1, characterized in that: The stepped adjustment mechanism (3) includes an adjustment screw (31). The left and right sides of the inner wall of the feeding rack (11) are respectively provided with a lifting slide groove (34) and a lifting guide groove. The bottom wall of the lifting slide groove (34) is rotatably connected to the lower end of the adjustment screw (31), and the upper end of the adjustment screw (31) extends to the upper side of the feeding rack (11).

3. The multi-wheel feeding device for laser welding according to claim 2, characterized in that: The stepped adjustment mechanism (3) also includes an adjustment block (32) and a rotating shaft (33). The inner walls of the lifting slide (34) and the lifting guide groove are slidably connected to the outer wall of the adjustment block (32). The upper ends of the two adjustment blocks (32) are provided with internal threaded holes. The inner walls of the internal threaded holes are spirally connected to the outer wall of the adjusting screw (31). The sides of the two adjustment blocks (32) that are close to each other are rotatably connected to the rotating shaft (33). The two rotating shafts (33) are connected to the left and right ends of the same stepped feeding rod (21). The side of the adjustment block (32) away from the rotating shaft (33) is connected to a fixing mechanism (6).

4. The multi-wheel feeding device for laser welding according to claim 1, characterized in that: The material collection mechanism (4) includes a lower extension plate (42). The upper end of the stepped feeding plate (22) is provided with a roller groove (41). The lower end of the stepped feeding plate (22) is connected to the lower extension plate (42), and the lower extension plate (42) is located on one side of the roller groove (41). The side of the lower extension plate (42) close to the roller groove (41) is rotatably connected to the concentrating roller (25). The side of the lower extension plate (42) away from the roller groove (41) is connected to a drive motor, and the output end of the drive motor passes through the lower extension plate (42) and is connected to the concentrating roller (25).

5. A multi-wheel feeding device for laser welding according to claim 1, characterized in that: The partitioning mechanism (5) includes a partition frame (51) and a connecting plate (52). The upper rear side of the partitioning column (24) is connected to two connecting plates (52). A rotating shaft is connected to the side of the two connecting plates (52) that are close to each other. A rotating hole is opened on the front side of the left end of the partition frame (51), and the inner wall of the rotating hole is rotatably connected to the outer wall of the rotating shaft.

6. A multi-wheel feeding device for laser welding according to claim 5, characterized in that: The partitioning mechanism (5) also includes a connecting block (53), partitioning legs (54), and an extension frame (55). The lower end of the partition frame (51) is connected to the upper end of the partitioning legs (54). The front end of the partition frame (51) is connected to the rear end of the connecting block (53). The rear end of the partition frame (51) is provided with a telescopic hole. The inner wall of the telescopic hole is slidably connected to the outer wall of the extension frame (55). The lower end of the extension frame (55) extends to the outside of the partition frame (51). The rear end of the extension frame (55) is provided with a connecting hole (56), and the connecting hole (56) cooperates with the connecting block (53).

7. A multi-wheel feeding device for laser welding according to claim 1, characterized in that: The upper front side of the stepped feeding plate (22) is provided with a column fixing hole (57), and the inner wall of the column fixing hole (57) is slidably connected to the outer wall of the partition column (24). The lower ends of the stepped feeding plate (22) and the partition column (24) are both provided with fixing holes, and the inner walls of the two fixing holes are spirally connected with the same screw.

8. A multi-wheel feeding device for laser welding according to claim 3, characterized in that: The fixing mechanism (6) includes a fixed top frame (61), a fan-shaped frame (62), a rotating rod (64), and a translational fixing frame (65). The upper side of the adjusting block (32) away from the rotating shaft (33) is connected to the fixed top frame (61) and the rotating rod (64) from top to bottom. The outer wall of the rotating rod (64) is slidably connected to the translational fixing frame (65). The side of the feeding frame (11) away from the stepped feeding plate (22) is connected to the fan-shaped frame (62). The upper end of the fan-shaped frame (62) is provided with a fixing groove (63), and the translational fixing frame (65) and the fixing groove (63) cooperate with each other.

9. A multi-wheel feeding device for laser welding according to claim 1, characterized in that: The rear end of the stepped feeding plate (22) is provided with an embedded hole. The inner wall of the embedded hole is slidably connected to the outer wall of the receiving plate (7). The rear end of the receiving plate (7) is connected to the connecting plate (23). The outer wall of the receiving plate (7) is connected with a rubber protrusion. The inner wall of the embedded hole is provided with a groove, and the groove and the rubber protrusion cooperate with each other.

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