A core winding and welding machine

Abstract

The utility model relates to the technical field of iron core production equipment, and specifically relates to a kind of iron core winding welding machine including winding device, tape feeding device, cutting device and welding device, the winding device includes roll core, and the rotation driving part connected with the roll core;The tape feeding device is located in the roll core side, to the roll core conveyor strip material;The cutting device is located between the roll core and the tape feeding device, to cut strip material;The welding device includes inner welding mechanism, first outer welding mechanism, the inner welding mechanism is located in the roll core axial side, to the inside surface welding of iron core along the axial direction of the roll core;The first outer welding mechanism is located in the roll core axial side, to the outside surface welding of iron core along the axial direction of the roll core.The utility model provides a kind of iron core winding welding machine, effectively avoid the situation that strip material end is raised, without manual secondary repair welding, greatly save manual cost and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of iron core production equipment, specifically an iron core winding and welding machine. Background Technology

[0002] Existing iron core welding machines typically have a welding mechanism on one side of the core. After the strip is wound to form the core, the welding mechanism approaches and contacts the core radially, then forms two fixed weld points on the outer side of the core to secure the end of the strip. However, with this two-point welding method, the areas of the strip not covered by the weld points are prone to warping, requiring manual secondary welding, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this utility model is to provide a core winding and welding machine to solve the problem that the ends of the core strip that are not covered by the weld points are prone to warping due to the two-point welding structure of the existing core winding and welding machine, which requires manual secondary welding.

[0004] To solve the above problems, the present invention provides the following technical solution: A core winding and welding machine, comprising: A winding device, comprising a winding core and a rotary drive connected to the winding core; A tape feeding device is located on one side of the core to feed the tape material to the core; A cutting device is disposed between the core and the feeding device to cut the strip; The welding apparatus includes an inner welding mechanism and a first outer welding mechanism. The inner welding mechanism is located on one side of the core along the axial direction to weld the inner surface of the core along the axial direction of the core. The first outer welding mechanism is located on one side of the core along the axial direction to weld the outer surface of the core along the axial direction of the core.

[0005] As described above, in a core winding and welding machine, the first outer welding mechanism includes a first outer welding needle, a first outer welding drive, and a first outer welding angle adjustment component. The first outer welding drive is connected to the first outer welding needle to drive the first outer welding needle to move toward or away from the core. The first outer welding angle adjustment component is connected to the first outer welding needle to drive the first outer welding needle to rotate relative to the first outer welding drive when the first outer welding drive drives the first outer welding needle to move toward and / or away from the core, so that the first outer welding needle remains in contact with the outer surface of the core.

[0006] As described above, in a core winding and welding machine, the first outer welding mechanism further includes a first outer welding support connected to the first outer welding drive and a first outer welding rotating seat connected to the first outer welding needle. The first outer welding support and the first outer welding rotating seat are hinged together, and the hinge axis of the two is perpendicular to the axial direction of the core. The first outer welding angle adjustment component connects the first outer welding rotating seat and the first outer welding support to drive the first outer welding rotating seat to rotate relative to the first outer welding support.

[0007] As described above, in a core winding and welding machine, the inner welding mechanism includes an inner welding needle, an inner welding drive, and an inner welding angle adjustment component. The inner welding drive is connected to the inner welding needle to drive the inner welding needle to move toward or away from the core. The inner welding angle adjustment component is connected to the inner welding needle so that when the inner welding drive drives the inner welding needle to move toward and / or away from the core, it drives the inner welding needle to rotate relative to the inner welding drive, so that the inner welding needle remains in contact with the inner surface of the core during movement.

[0008] As described above, in a core winding and welding machine, the inner welding mechanism further includes an inner welding support connected to the inner welding drive and an inner welding rotating seat connected to the inner welding needle. The inner welding support and the inner welding rotating seat are hinged together, and their hinge axis is perpendicular to the axial direction of the core. The inner welding angle adjustment component connects the inner welding rotating seat and the inner welding support to drive the inner welding rotating seat to rotate relative to the inner welding support.

[0009] As described above, the iron core winding and welding machine further includes a moving mechanism that connects the inner welding mechanism and the first outer welding mechanism to drive the inner welding mechanism to move relative to the core or to drive the first outer welding mechanism to move relative to the core.

[0010] As described above, in a core winding and welding machine, the moving mechanism includes a fixed base, a guide rail, a slide block, and a moving drive component. The guide rail is disposed on the fixed base and its length direction is perpendicular to the axial direction of the core. The slide block is slidably disposed on the guide rail and connected to the inner welding mechanism and the first outer welding mechanism. The moving drive component connects the fixed base and the slide block to drive the slide block to move along the guide rail.

[0011] As described above, a core winding and welding machine further includes a core holder and a flattening mechanism. The core holder is coaxially connected to the core, and the flattening mechanism is located on one side of the core's axial direction. A moving mechanism is connected to the flattening mechanism to drive the flattening mechanism to move to be coaxially opposite to the core. The flattening mechanism includes a flattening module and a flattening drive component. The flattening drive component is connected to the flattening module to drive the flattening module to move towards or away from the core.

[0012] As described above, the iron core winding and welding machine further includes a thickness measuring and limiting mechanism. The thickness measuring and limiting mechanism is located on one radial side of the core. The thickness measuring and limiting mechanism includes a contact and a contact driving member. The contact driving member is connected to the contact to drive the contact to move towards or away from the core.

[0013] As described above, the iron core winding and welding machine further includes a second outer welding mechanism. The second outer welding mechanism is located on one side of the core in the radial direction to weld the outer surface of the iron core in the radial direction. The second outer welding mechanism includes a second outer welding needle and a second outer welding drive. The second outer welding drive is connected to the second outer welding needle to drive the second outer welding needle to move towards or away from the core.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention provides a core winding and welding machine, which welds the outer side of the core along the axial direction of the core through a first outer welding mechanism and welds the inner side of the core along the axial direction of the core through an inner welding mechanism, so that the ends of the strip on the inner or outer side of the core can be welded and covered, effectively avoiding the occurrence of strip end lifting, eliminating the need for manual secondary welding, greatly saving labor costs and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a core winding and welding machine according to an embodiment of the present utility model.

[0017] Figure 2 This is a partial structural diagram of a core winding and welding machine according to an embodiment of the present invention. Figure 1 .

[0018] Figure 3 This is a partial structural diagram of a core winding and welding machine according to an embodiment of the present invention. Figure 2 .

[0019] The corresponding numbers for the attached figures are as follows: 1. Winding device; 11. Core; 12. Rotary drive; 13. Core holder; 14. Flattening mechanism; 141. Flattening module; 142. Flattening drive; 15. Thickness measuring and limiting mechanism; 151. Contact; 152. Contact drive; 2. Strip feeding device; 21. Strip roller; 22. Strip tensioning mechanism; 23. Strip clamping and feeding mechanism; 3. Cutting device; 4. Welding device; 41. Inner welding mechanism; 411. Inner welding needle; 412. Inner welding drive; 413. Inner welding... Angle adjustment component; 414, inner welded support; 415, inner welded rotating seat; 42, first outer welded mechanism; 421, first outer welded pin; 422, first outer welded drive component; 423, first outer welded angle adjustment component; 424, first outer welded support; 425, first outer welded rotating seat; 43, moving mechanism; 431, fixed seat; 432, guide rail; 433, slide; 434, moving drive component; 44, second outer welded mechanism; 441, second outer welded pin; 442, second outer welded drive component. Detailed Implementation

[0020] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0021] Please see Figures 1 to 3 This embodiment provides a core winding and welding machine, including a winding device 1, a feeding device 2, a cutting device 3, and a welding device 4. The winding device 1 includes a core 11 and a rotary drive 12 connected to the core 11. The feeding device 2 is located on one side of the core 11 to feed the core 11 with strip material. The cutting device 3 is located between the core 11 and the feeding device 2 to cut the strip material. The welding device 4 includes an inner welding mechanism 41 and a first outer welding mechanism 42. The inner welding mechanism 41 is located on one side of the core 11 along its axial direction to weld the inner surface of the core along its axial direction. The first outer welding mechanism 42 is located on one side of the core 11 along its axial direction to weld the outer surface of the core along its axial direction.

[0022] This embodiment of a core winding and welding machine welds the outer side of the core along the axial direction of the core 11 using a first outer welding mechanism 42 and an inner welding mechanism 41 along the axial direction of the core 11 to weld the inner side of the core. This allows the ends of the strip on the inner or outer side of the core to be welded and covered, effectively preventing the ends of the strip from lifting up. It eliminates the need for manual secondary welding, greatly saving labor costs and improving production efficiency.

[0023] Furthermore, the first external welding mechanism 42 includes a first external welding needle 421, a first external welding drive 422, and a first external welding angle adjustment component 423. The first external welding drive 422 is connected to the first external welding needle 421 to drive the first external welding needle 421 to move toward or away from the core 11. The first external welding angle adjustment component 423 is connected to the first external welding needle 421 to drive the first external welding needle 421 to rotate relative to the first external welding drive 422 when the first external welding drive 422 drives the first external welding needle 421 to move toward and / or away from the core 11, so that the first external welding needle 421 remains in contact with the outer surface of the core. With the cooperation of the first external welding drive component 422 and the first external welding angle adjustment component 423, the first external welding needle 421 can be closely attached to the outer side of the iron core and move along the axial direction of the iron core, thereby forming a straight drag welding strip on the outer side of the iron core, so that the ends of the strip on the outer side of the iron core can be welded and covered, effectively avoiding the occurrence of the strip ends lifting up.

[0024] Furthermore, the first external welding mechanism 42 also includes a first external welding support 424 connected to the first external welding drive member 422 and a first external welding rotating seat 425 connected to the first external welding needle 421. The first external welding support 424 and the first external welding rotating seat 425 are hinged together, and the hinge axis of the two is perpendicular to the axial direction of the core 11. The first external welding angle adjustment member 423 connects the first external welding rotating seat 425 and the first external welding support 424 to drive the first external welding rotating seat 425 to rotate relative to the first external welding support 424. When the first external welding drive 422 drives the first external welding needle 421 to move towards and / or away from the core 11, the first external welding angle adjustment 423 drives the first external welding rotating seat 425 to rotate relative to the first external welding support 424, thereby driving the first external welding needle 421 to rotate relative to the first external welding drive 422. This keeps the first external welding needle 421 close to the outer side of the core and moves along the axial direction of the core, thus forming a straight drag welding strip on the outer side of the core, effectively preventing the strip end from warping. Preferably, in this embodiment, both the first external welding drive 422 and the first external welding angle adjustment 423 are cylinders.

[0025] Furthermore, the inner welding mechanism 41 includes an inner welding needle 411, an inner welding drive 412, and an inner welding angle adjustment component 413. The inner welding drive 412 is connected to the inner welding needle 411 to drive the inner welding needle 411 to move towards or away from the core 11. The inner welding angle adjustment component 413 is connected to the inner welding needle 411 so that when the inner welding drive 412 drives the inner welding needle 411 to move towards and / or away from the core 11, it drives the inner welding needle 411 to rotate relative to the inner welding drive 412, so that the inner welding needle 411 remains in contact with the inner surface of the core during movement. Through the cooperation of the inner welding drive 412 and the inner welding angle adjustment component 413, the inner welding needle 411 can closely adhere to the inner surface of the core and move along the axial direction of the core, thereby forming a straight drag welding strip on the inner surface of the core. This ensures that the ends of the strip on the inner side of the core are all welded and covered, effectively preventing the ends of the strip from warping.

[0026] Furthermore, the inner welding mechanism 41 also includes an inner welding support 414 connected to the inner welding drive member 412 and an inner welding rotating seat 415 connected to the inner welding needle 411. The inner welding support 414 and the inner welding rotating seat 415 are hinged together, and the hinge axis of the two is perpendicular to the axial direction of the core 11. The inner welding angle adjustment member 413 connects the inner welding rotating seat 415 and the inner welding support 414 to drive the inner welding rotating seat 415 to rotate relative to the inner welding support 414. When the inner welding drive 412 drives the inner welding needle 411 to move towards and / or away from the core 11, the inner welding angle adjustment 413 drives the inner welding rotating seat 415 to rotate relative to the inner welding support 414, thereby driving the inner welding needle 411 to rotate relative to the inner welding drive 412. This keeps the inner welding needle 411 close to the inner side of the core and moves along the axial direction of the core, thus forming a straight drag welding strip on the inner side of the core, effectively preventing the strip end from warping. Preferably, in this embodiment, both the inner welding drive 412 and the inner welding angle adjustment 413 are cylinders.

[0027] Furthermore, the welding device 4 also includes a moving mechanism 43, which connects the inner welding mechanism 41 and the first outer welding mechanism 42 to drive the inner welding mechanism 41 to move opposite to the core 11 or drive the first outer welding mechanism 42 to move opposite to the core 11. When the strip is wound, the moving mechanism 43 drives the first outer welding mechanism 42 and the inner welding mechanism 41 to work alternately, sequentially completing the outer and inner welding of the iron core. The structure is compact and the production efficiency is high.

[0028] The moving mechanism 43 includes a fixed base 431, a guide rail 432, a slide block 433, and a moving drive component 434. The guide rail 432 is disposed on the fixed base 431 and its length direction is perpendicular to the axial direction of the core 11. The slide block 433 is slidably disposed on the guide rail 432 and is connected to the inner welding mechanism 41 and the first outer welding mechanism 42. The moving drive component 434 connects the fixed base 431 and the slide block 433 to drive the slide block 433 to move along the guide rail 432. When the moving drive component 434 drives the slide block 433 to move along the guide rail, it can drive the first outer welding mechanism 42 to move opposite to the core 11 or drive the inner welding mechanism 41 to move opposite to the core 11. Preferably, the moving drive component 434 in this embodiment is a cylinder.

[0029] Furthermore, the winding device 1 also includes a core holder 13 and a flattening mechanism 14. The core holder 13 is coaxially connected to the core 11. The flattening mechanism 14 is located on one side of the core 11 along its axial direction. The flattening mechanism 14 includes a flattening module 141 and a flattening drive member 142. The flattening drive member 142 is connected to the flattening module 141 to drive the flattening module 141 to move closer to or further away from the core 11. After the strip is wound, the flattening drive member 142 drives the flattening module 141 to move along the axial direction of the core 11 towards the core 11, so that the flattening module 141 and the core holder 13 apply pressure to the core on both sides of its axial direction. Under the pressure from both sides, the core becomes flatter. Preferably, the flattening drive member 142 in this embodiment is a cylinder.

[0030] Furthermore, the moving mechanism 43 is connected to the flattening mechanism 14 to drive the flattening mechanism 14 to move coaxially opposite to the core 11. The moving mechanism 43 can not only drive the first outer welding mechanism 42 to move opposite to the core 11 or drive the inner welding mechanism 41 to move opposite to the core 11, but also drive the flattening mechanism 14 to move coaxially opposite to the core 11. By simultaneously realizing the movement of three mechanisms with different functions through one moving mechanism 43, the three mechanisms can complete their work in an orderly and sequential manner. The structure is compact and the design is reasonable, which helps to reduce production costs and improve space utilization.

[0031] Furthermore, the inner welding mechanism 41 is located on one side of the flattening mechanism 14, and the first outer welding mechanism 42 is hinged above the flattening mechanism 14. When the moving mechanism 43 drives the flattening mechanism 14 to move coaxially opposite the core 11, the first outer welding mechanism 42 is also tilted opposite the core 11. Therefore, when the flattening mechanism 14 and the first outer welding mechanism 42 work in turn, the moving mechanism 43 does not need to move again. After both the flattening mechanism 14 and the first outer welding mechanism 42 have completed their work, the moving mechanism 43 only needs to move once to drive the inner welding mechanism 41 to move opposite the core 11. Compared with the structure in which the three are arranged in parallel, the structure of this embodiment can reduce one movement, save the time required for movement, and improve production efficiency.

[0032] Furthermore, the winding device 1 also includes a thickness measuring and limiting mechanism 15, which is located on one radial side of the winding core 11. The thickness measuring and limiting mechanism 15 includes a contact 151 and a contact driving member 152. The contact driving member 152 is connected to the contact 151 to drive the contact 151 to move towards or away from the winding core 11. Preferably, in this embodiment, the contact driving member 152 is a lead screw module, which includes a servo motor, a lead screw connected to the output end of the servo motor, a slide rail parallel to the lead screw, and a slider slidably disposed on the slide rail and threadedly connected to the lead screw. The contact 151 is connected to the slider. Before the rotary drive 12 drives the core 11 to wind, the contact drive 152 drives the contact 151 to approach the core 11 to a set distance. Then, the rotary drive 12 drives the core 11 to rotate to wind the strip into an iron core. When the outer side of the wound iron core contacts the contact 151, it indicates that the thickness of the iron core has reached the required thickness. At this time, the cutting device 3 cuts the strip. Thus, the thickness measuring and limiting mechanism 15 provides an accurate thickness limiting function for the iron core, so that the thickness of each iron core meets the production requirements.

[0033] Furthermore, the welding device 4 also includes a second external welding mechanism 44, which is located on one radial side of the core 11 to weld the outer surface of the core along the radial direction of the core 11. The second external welding mechanism 44 includes a second external welding pin 441 and a second external welding drive component 442. The second external welding drive component 442 is connected to the second external welding pin 441 to drive the second external welding pin 441 to move towards or away from the core 11. This embodiment combines a first external welding mechanism 42 and a second external welding mechanism 44. Users can choose to use the first external welding mechanism 42 and / or the second external welding mechanism 44 according to production needs to meet different production requirements. Preferably, the second external welding drive component 442 is a cylinder.

[0034] Further, the feeding device 2 includes a strip roller 21, a strip tensioning mechanism 22, and a strip clamping mechanism 23. The strip material is placed on the strip roller 21, and one end of the strip passes through the strip tensioning mechanism 22 and cooperates with the strip clamping mechanism 23. The strip tensioning mechanism 22 flattens and tensions the strip, and the strip clamping mechanism 23 drives the strip to move to the core 11. The strip clamping mechanism 23 includes a first clamping plate, a second clamping plate, a clamping drive, and a feeding drive. The strip is placed between the first and second clamping plates. The clamping drive is connected to the second clamping plate to drive the second clamping plate closer to or away from the first clamping plate, thereby clamping and releasing the strip. The feeding drive is connected to the first clamping plate, the second clamping plate, and the clamping drive to drive the first clamping plate, the second clamping plate, and the clamping drive to move closer to or away from the core 11. Preferably, both the clamping drive and the feeding drive are cylinders.

[0035] Furthermore, the cutting device 3 includes a cutter and a cutter drive. When the winding device 1 completes winding, the cutter drive drives the cutter to approach the strip, thereby cutting the strip. Preferably, the cutter drive is an electric cylinder.

[0036] The working steps of the iron core winding and welding machine of this utility model are as follows: S1. The feeding device 2 feeds the strip to the core 11. The rotary drive 12 drives the core 11 to rotate so that the strip is wound around the outer periphery of the core 11. At the same time, the contact drive 152 in the thickness measuring and limiting mechanism 15 drives the contact 151 to move to the set position. S2. When the outer surface of the iron core contacts the contact 151, the cutting device 3 cuts the strip. S3. The second outer welding drive component 442 drives the second outer welding pin 441 to perform initial spot welding on the outer side of the iron core. S4. The flattening drive unit 142 drives the flattening module 141 to apply pressure to the iron core along the axial direction of the core 11, making the iron core flatter. S5. The first external welding drive component 422 and the first external welding angle adjustment component 423 cooperate to drive the first external welding needle 421 to drag weld the outer side of the iron core to form a straight welding strip. S6. The moving mechanism 43 drives the inner welding mechanism 41 to move to be opposite to the core 11, and the inner welding drive 412 drives the inner welding needle 411 to drag weld the inner side of the iron core to form a straight welding strip.

[0037] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A core winding and welding machine characterized by, include: The winding device (1) includes a core (11) and a rotary drive (12) connected to the core (11). A belt feeding device (2) is provided on one side of the core (11) to feed the belt material to the core (11); A cutting device (3) is provided between the core (11) and the feeding device (2) to cut the strip; The welding device (4) includes an inner welding mechanism (41) and a first outer welding mechanism (42). The inner welding mechanism (41) is located on one side of the axial direction of the core (11) to weld the inner side of the iron core along the axial direction of the core (11). The first outer welding mechanism (42) is located on one side of the axial direction of the core (11) to weld the outer side of the iron core along the axial direction of the core (11).

2. A core winding and welding machine according to claim 1, characterized in that The first external welding mechanism (42) includes a first external welding needle (421), a first external welding drive (422), and a first external welding angle adjustment (423). The first external welding drive (422) is connected to the first external welding needle (421) to drive the first external welding needle (421) to move toward or away from the core (11). The first external welding angle adjustment (423) is connected to the first external welding needle (421) to drive the first external welding needle (421) to move toward and / or away from the core (11) when the first external welding drive (422) drives the first external welding needle (421) to move toward and / or away from the core (11), thereby causing the first external welding needle (421) to rotate relative to the first external welding drive (422) so that the first external welding needle (421) remains in contact with the outer side of the core.

3. A core winding and welding machine according to claim 2, characterised in that, The first external welding mechanism (42) further includes a first external welding support (424) connected to the first external welding drive (422) and a first external welding rotating seat (425) connected to the first external welding needle (421). The first external welding support (424) and the first external welding rotating seat (425) are hinged together, and the hinge axis of the two is perpendicular to the axial direction of the core (11). The first external welding angle adjustment member (423) connects the first external welding rotating seat (425) and the first external welding support (424) to drive the first external welding rotating seat (425) to rotate relative to the first external welding support (424).

4. A core winding and welding machine according to claim 1, characterized in that, The inner welding mechanism (41) includes an inner welding needle (411), an inner welding drive (412), and an inner welding angle adjustment (413). The inner welding drive (412) is connected to the inner welding needle (411) to drive the inner welding needle (411) to move toward or away from the core (11). The inner welding angle adjustment (413) is connected to the inner welding needle (411) to drive the inner welding needle (411) to move toward and / or away from the core (11) when the inner welding drive (412) drives the inner welding needle (411) to rotate relative to the inner welding drive (412), so that the inner welding needle (411) remains in contact with the inner side of the core when it moves.

5. A core winding and welding machine according to claim 4, characterised in that, The inner welding mechanism (41) further includes an inner welding support (414) connected to the inner welding drive (412) and an inner welding rotating seat (415) connected to the inner welding needle (411). The inner welding support (414) and the inner welding rotating seat (415) are hinged together, and the hinge axis of the two is perpendicular to the axial direction of the core (11). The inner welding angle adjustment member (413) connects the inner welding rotating seat (415) and the inner welding support (414) to drive the inner welding rotating seat (415) to rotate relative to the inner welding support (414).

6. The iron core winding and welding machine according to claim 1, characterized in that, The welding device (4) further includes a moving mechanism (43) which connects the inner welding mechanism (41) and the first outer welding mechanism (42) to drive the inner welding mechanism (41) to move relative to the core (11) or drive the first outer welding mechanism (42) to move relative to the core (11).

7. A core winding and welding machine according to claim 6, characterised in that, The moving mechanism (43) includes a fixed base (431), a guide rail (432), a slide (433), and a moving drive (434). The guide rail (432) is disposed on the fixed base (431) and its length direction is perpendicular to the axial direction of the core (11). The slide (433) is slidably disposed on the guide rail (432) and connected to the inner welding mechanism (41) and the first outer welding mechanism (42). The moving drive (434) connects the fixed base (431) and the slide (433) to drive the slide (433) to move along the guide rail (432).

8. A core winding and welding machine according to claim 6, characterised in that, The winding device (1) further includes a core holder (13) and a flattening mechanism (14). The core holder (13) is coaxially connected to the core (11). The flattening mechanism (14) is located on one side of the core (11) along its axial direction. The moving mechanism (43) is connected to the flattening mechanism (14) to drive the flattening mechanism (14) to move to be coaxial with the core (11). The flattening mechanism (14) includes a flattening module (141) and a flattening drive (142). The flattening drive (142) is connected to the flattening module (141) to drive the flattening module (141) to move toward or away from the core (11).

9. A core winding and welding machine according to claim 1, characterized in that, The winding device (1) further includes a thickness measuring and limiting mechanism (15), which is located on one radial side of the core (11). The thickness measuring and limiting mechanism (15) includes a contact (151) and a contact drive (152). The contact drive (152) is connected to the contact (151) to drive the contact (151) to move toward or away from the core (11).

10. A core winding and welding machine according to any one of claims 1-9, characterized in that, The welding device (4) further includes a second external welding mechanism (44), which is located on one side of the core (11) in the radial direction to weld the outer side of the core in the radial direction of the core (11). The second external welding mechanism (44) includes a second external welding needle (441) and a second external welding drive (442). The second external welding drive (442) is connected to the second external welding needle (441) to drive the second external welding needle (441) to move toward or away from the core (11).

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