Magnetic core broken end welding device

Abstract

The magnetic core broken end welding device comprises a winding mechanism and a welding mechanism, the winding mechanism comprises a fixed shaft sleeve, a rotating shaft sleeve and a telescopic shaft, end plates are installed at the end, away from a telescopic driving piece, of the rotating shaft sleeve at intervals, a winding shaft is installed at the end, away from the telescopic driving piece, of the telescopic shaft, and the winding shaft comprises a connecting sleeve; a winding shaft is installed on the side, close to the end plate, of the connecting sleeve, a clamping groove is formed in the side wall of the winding shaft and communicated with the interior of the connecting sleeve, a pressing block is movably installed in the clamping groove, one side of the pressing block and the side wall of the clamping groove form an inserting opening, a first wedge-shaped block is arranged on the other side of the pressing block, and the first wedge-shaped block and the side wall of the clamping groove form a welding opening of a hollow structure. By arranging the movable pressing block at the winding shaft, the inner broken end and the outer broken end of the magnetic core can be welded through a welding mechanism, the welding structure at the winding shaft is simplified, and the design difficulty and the production and maintenance cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent welding, and in particular to a magnetic core break welding device. Background Art

[0002] The wound magnetic core is made of high magnetic permeability metal strip and is widely used in the magnetic collection circuit of current sensors. After the winding of the magnetic core is completed, the inner and outer ends of the magnetic core need to be welded by a welding device to avoid deformation and looseness of the wound magnetic core.

[0003] The existing magnetic core broken end welding device requires two sets of welding devices to weld the inner and outer broken ends of the magnetic core respectively, which makes the structure of the winding shaft more complicated and increases the difficulty of design, manufacturing and maintenance.

[0004] Based on the above technical problems, the present application proposes a magnetic core break welding device. Summary of the invention

[0005] The purpose of the present invention is to provide a magnetic core break welding device to solve the technical problems mentioned in the background technology. The purpose of the present invention is achieved through the following technical solutions: A magnetic core decapitation welding device comprises a winding mechanism and a welding mechanism, wherein the winding mechanism comprises a fixed shaft sleeve, a rotating shaft sleeve and a telescopic shaft, wherein the rotating shaft sleeve is rotatably mounted in the fixed shaft sleeve, and the rotating shaft sleeve is connected to a rotating driving member through a transmission assembly; the telescopic shaft is slidably mounted in the rotating shaft sleeve, and a telescopic driving member is mounted on one end of the telescopic shaft, and the telescopic driving member is movably connected to the end of the telescopic shaft, and the telescopic driving member is used to drive the telescopic shaft to reciprocate along the axial direction of the rotating shaft sleeve so that the telescopic shaft is located at a unloading position, a loading position or a welding position; an end plate is installed at an interval at one end of the rotating shaft sleeve away from the telescopic driving member, and an axial hole is provided on the end plate; a winding shaft is installed at one end of the telescopic shaft away from the telescopic driving member, and the winding shaft comprises a connecting sleeve, and a winding shaft is installed on a side of the connecting sleeve close to the end plate, and a slot is provided on a side wall of the winding shaft, and the slot is communicated with the interior of the connecting sleeve, and a pressure block is movably installed in the slot, and the side wall of the pressure block The cam is provided with a first wedge block on one side of the pressure block away from the pressure block, and the first wedge block and the side wall of the pressure block form a welding port of a hollow structure; a guide rod is slidably installed in the connecting sleeve, and one end of the guide rod is connected to the telescopic shaft through a connecting rod, and the other end of the guide rod is fixed with a driving rod. The outer sleeve of the driving rod is provided with a first spring, and the side of the driving rod is provided with a second wedge block, and the second wedge block cooperates with the first wedge block; when the telescopic shaft is in the unloading position, the winding shaft is located at the inner side of the end plate; when the telescopic shaft is in the loading position, the winding shaft extends out of the end plate, and the pressure block is located on the side close to the welding port, and when the telescopic shaft is in the welding position, the second wedge block pushes the first wedge block so that the pressure block is located on the side close to the plug-in port; the welding mechanism is installed on the peripheral side of the winding mechanism, and the welding mechanism includes a welding gun and a first moving component, and the first moving component drives the welding gun to approach or move away from the welding port.

[0006] Furthermore, the length of the rotating sleeve is greater than that of the fixed sleeve, bearings are installed at both ends of the fixed sleeve, the rotating sleeve is rotatably installed in the fixed sleeve through the bearings, and both ends of the rotating sleeve extend out of the fixed sleeve; the rotating driving member is installed on one side of the fixed sleeve, and the driving shaft of the rotating driving member is connected to the rotating sleeve through the transmission assembly.

[0007] Furthermore, a guide groove is formed on the inner wall of the rotating sleeve, and the guide groove is arranged along the length direction of the rotating sleeve; a guide bar is fixed to the side wall of the telescopic shaft, and the guide bar is slidably arranged in the guide groove.

[0008] Furthermore, the telescopic driving member includes a driving arm, a first telescopic member and a second telescopic member, the first telescopic member and the second telescopic member are arranged in parallel on one side of the fixed sleeve, and the second telescopic member is located on the side of the first telescopic member close to the fixed sleeve; the driving arm is pivoted between the telescopic shaft and the first telescopic member through a pin; an axis head is installed at one end of the telescopic shaft close to the telescopic driving member, and a second spring is installed between the axis head and the rotating sleeve; when the first telescopic member and the second telescopic member are both in a retracted state, the telescopic shaft is in a unloading position under the action of the second spring; when the first telescopic member is extended and abuts against the driving arm, the other end of the driving arm abuts against the telescopic shaft, so that the telescopic shaft is in a loading position; when the second telescopic member is extended and abuts against the driving arm, the other end of the driving arm abuts against the telescopic shaft, so that the telescopic shaft is in a welding position.

[0009] Furthermore, a universal ball is provided at the connection between the driving arm and the telescopic shaft; and the telescopic length of the second telescopic member is greater than or equal to the telescopic length of the first telescopic member.

[0010] Furthermore, a latch is fixed at the lower part of the side wall of the slot, a slot for the latch to cooperate with is opened on the side wall of the pressure block, the latch is inserted in the slot, and a third spring is sleeved on the latch.

[0011] Furthermore, one end of the connecting sleeve close to the winding shaft is in a frustum shape.

[0012] Furthermore, the first moving assembly includes a first fixed seat, a first moving seat and a first moving member, the first moving member is installed on the upper end of the first fixed seat, the first moving seat is connected to the first moving member, the welding gun is fixed on the first moving seat, and the first moving member drives the welding gun to move reciprocatingly up and down.

[0013] Furthermore, the welding mechanism also includes a second moving component, which includes a second fixed seat and a second moving member, the second moving member is fixed to the side of the second fixed seat, the first fixed seat is connected to the second moving member, and the second moving member drives the first fixed seat to reciprocate along the length direction of the winding shaft.

[0014] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: 1. By setting a reel with a hollow welding position, the inner broken end of the magnetic core can be welded at the welding position at the beginning of reeling through a welding mechanism, and the outer broken end of the magnetic core can be welded after reeling, which simplifies the welding structure at the reel and reduces the design difficulty and production and maintenance costs; 2. By arranging a movable pressing block in the slot to press and fix the broken ends inside the magnetic core, and using a welding mechanism to weld the inner and outer broken ends of the magnetic core, the size of the winding shaft is reduced, so that the magnetic core with a smaller inner diameter can be automatically welded, and the application range of the welding device is improved; 3. The first telescopic member and the second telescopic member are used to control the swing amplitude of the driving arm to be different, so as to realize the switching of different positions of the telescopic axis. The structure is simple, the action is reliable, and the equipment investment cost is reduced; 4. The welding gun is controlled to move along the length direction of the winding shaft by the second moving component, and the position of the welding gun can be adjusted according to the magnetic cores of different thicknesses, thereby improving the applicability of the welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a three-dimensional diagram of the winding mechanism of the embodiment of the present application; Figure 3 This is a top view of the winding mechanism of the embodiment of the present application; Figure 4 This is a cross-sectional view of the winding mechanism of an embodiment of the present application; Figure 5 This is a three-dimensional diagram of the winding shaft according to an embodiment of the present application; Figure 6 This is a cross-sectional view of the winding shaft of an embodiment of the present application; Figure 7 for Figure 6 A partial enlarged view of Figure 8 This is a schematic diagram of the welding mechanism structure of an embodiment of the present application.

[0017] The symbols in the attached drawings are: 100, machine table; 101, vertical plate; 102, guide trough; 103, collecting plate; 200, unwinding mechanism; 300, tensioning mechanism; 400, feeding mechanism; 500, cutting mechanism; 600, winding mechanism; 610, fixed shaft sleeve; 611, bearing; 620, rotating shaft sleeve; 621, end plate; 622, guide groove; 630, telescopic shaft; 631, shaft head; 632, second spring; 633, guide strip; 640, winding shaft; 641, connecting sleeve; 642, winding shaft; 6421, slot; 6422, latch; 643, guide rod; 644, connecting rod; 645, driving rod; 646 51. second wedge block; 646. first spring; 647. pressure block; 6471. first wedge block; 6472. slot; 648. third spring; A. plug interface; B. welding position; 650. rotating drive member; 660. transmission assembly; 670. telescopic drive member 671. drive arm; 672. first telescopic member; 673. second telescopic member; 700. welding mechanism; 710. welding gun; 720. first moving assembly; 721. first fixed seat; 722. first moving seat; 723. first moving member; 730. second moving assembly; 731. second fixed seat; 732. second moving member; 800. clamping mechanism. DETAILED DESCRIPTION

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1The magnetic core break welding device shown in the figure comprises a machine table 100, on which a vertical plate 101 is vertically mounted, and on which an unwinding mechanism 200, a tensioning mechanism 300, a feeding mechanism 400, a cutting mechanism 500, a winding mechanism 600, a welding mechanism 700 and a pressing mechanism 800 are mounted. The strip coil is placed on the unwinding mechanism 200, and the end of the strip coil is successively wound on the winding mechanism 600 through the tensioning mechanism 300, the feeding mechanism 400 and the cutting mechanism 500. The tensioning mechanism 300 is used to adjust the tension of the strip so as to adjust the winding density of the magnetic core. The feeding mechanism 400 is used to clamp the strip and send it to the cutting mechanism 500 for cutting, and to transport the end of the strip to the winding mechanism 600. The winding mechanism 600 is used to wind the strip into a magnetic core of a set size. When winding, the pressing mechanism 800 presses the magnetic core. The welding mechanism 700 is used to weld the inner and outer broken ends of the magnetic core to prevent the magnetic core from becoming loose after winding. The wound magnetic core rolls from the guide groove 102 to the collection plate 103. Among them, the structures and principles of the unwinding mechanism 200, the tensioning mechanism 300, the feeding mechanism 400, the cutting mechanism 500 and the pressing mechanism 800 are all existing technologies and will not be described in detail here.

[0020] like Figure 1-Figure 4 As shown, the winding mechanism 600 includes a fixed sleeve 610, a rotating sleeve 620, a telescopic shaft 630, a winding shaft 640, a rotating drive member 650, a transmission assembly 660 and a telescopic drive member 670. The fixed sleeve 610 is mounted on the machine 100, and bearings 611 are respectively installed at both ends of the fixed sleeve 610. The rotating sleeve 620 is rotatably installed in the fixed sleeve 610 through the bearings 611. Both ends of the rotating sleeve 620 extend out of the two ends of the fixed sleeve 610. The front end of the rotating sleeve 620 is spaced apart with an end plate 621, and a shaft hole is opened in the center of the end plate 621. The end plate 621 is connected to the rotating sleeve 620 by bolts, so that it can be replaced according to magnetic cores of different sizes. The rotating drive member 650 is a servo motor, which is installed on the left side of the fixed sleeve 610 through a motor bracket 651. The driving shaft of the rotating drive member 650 is connected to the rear end of the rotating sleeve 620 through a transmission assembly 660. The rotating drive member 650 drives the rotating sleeve 620 to rotate synchronously through the transmission assembly 660. The transmission assembly 660 is a synchronous wheel assembly, which can realize the precise adjustment of the rotating sleeve 620.

[0021] like Figure 2 , Figure 4As shown, a telescopic shaft 630 is slidably installed inside the rotating sleeve 620, and the telescopic shaft 630 can reciprocate along the axial direction of the rotating sleeve 620. The winding shaft 640 is installed at the front end of the telescopic shaft 630, and a shaft head 631 is installed at the rear end of the telescopic shaft 630. A second spring 632 is installed between the shaft head 631 and the rotating sleeve 620. The second spring 632 pushes the telescopic shaft 630 backward, so that the winding shaft 640 moves backward to the unloading position, that is, the winding shaft 640 is retracted to the rear side of the end plate 621. A guide groove 622 is opened at the bottom of the inner wall of the rotating sleeve 620, and the guide groove 622 extends along the length direction of the rotating sleeve 620. A guide bar 633 is fixed at the lower end of the side wall of the telescopic shaft 630, and the guide bar 633 is slidably installed in the guide groove 622, so that the telescopic shaft 630 can rotate synchronously with the rotating sleeve 620.

[0022] like Figure 2 , Figure 3 , Figure 4 As shown, the telescopic driving member 670 includes a driving arm 671, a first telescopic member 672 and a second telescopic member 673. The first telescopic member 672 and the second telescopic member 673 are installed in parallel on the right side of the fixed sleeve 610, and the first telescopic member 672 is located on the right side of the second telescopic member 673. A pin is vertically installed between the second telescopic member 673 and the telescopic shaft 630. The pin is located on the side close to the telescopic shaft 630. The driving arm 671 is pivoted with the pin so that the driving arm 671 can rotate along the horizontal plane. When the first telescopic member 672 is extended, the first telescopic member 672 pushes the driving arm 671 to rotate, and pushes the telescopic shaft 630 to move forward to the loading position; when the second telescopic member 673 is extended, the second telescopic member 673 further pushes the driving arm 671 to rotate, and continues to push the telescopic shaft 630 to move forward to the welding position. When the first telescopic member 672 and the second telescopic member 673 are both contracted, the telescopic shaft 630 moves backward to the unloading position under the action of the second spring 632. Preferably, a universal ball is installed at the contact end between the driving arm 671 and the telescopic shaft 630 , so as to reduce the wear between the driving arm 671 and the telescopic shaft 630 .

[0023] The first telescopic member 672 and the second telescopic member 673 are both cylinders, and the telescopic stroke of the second telescopic member 673 is greater than or equal to the telescopic stroke of the first telescopic member 672. By pushing the different positions of the driving arm 671 by the two telescopic members, different displacements of the telescopic shaft 630 can be achieved, so that the telescopic shaft 630 is in different working positions. The design has a simple structure, sensitive response, low cost, and easy installation and maintenance.

[0024] like Figure 4 , Figure 5 , Figure 6As shown, the winding shaft 640 includes a connecting sleeve 641, and a winding shaft 642 is installed at the right end of the connecting sleeve 641. A slot 6421 is provided on the side wall of the winding shaft 642, and the slot 6421 is connected to the inside of the connecting sleeve 641. A guide rod 643 is slidably installed in the connecting sleeve 641, and the length of the guide rod 643 is less than the length of the connecting sleeve 641. A connecting rod 644 is installed at the left end of the guide rod 643, and the connecting rod 644 is fixedly connected to the telescopic shaft 630, and a distance is left between the telescopic shaft 630 and the connecting sleeve 641 for the guide rod 643 to move. A driving rod 645 is fixed at the right end of the guide rod 643, and a first spring 646 is connected to the outer shell of the driving rod 645, and the first spring 646 is used to push the guide rod 643 to the side away from the winding shaft 642. The driving rod 645 extends into the slot 6421, and a plurality of second wedge blocks 6451 are fixed on the side of the driving rod 645.

[0025] like Figure 5 , Figure 6 , Figure 7 As shown, a pressure block 647 is movably installed in the slot 6421. The pressure block 647 is located on the side of the driving rod 645 where the second wedge block 6451 is fixed. The pressure block 647 and the side of the slot 6421 away from the driving rod 645 form an insertion interface A. A first wedge block 6471 is fixed on the side of the pressure block 647 adjacent to the driving rod 645. The first wedge block 6471 cooperates with the second wedge block 6451. When the guide rod 643 pushes the driving rod 645 to move to the right, the second wedge block 6451 pushes the first wedge block 6471 to move the pressure block 647 to the side of the insertion interface A, clamping the inner broken end of the strip in the insertion interface A. At the same time, a hollow welding position B is formed between the first wedge block 6471 and the slot 6421.

[0026] like Figure 5 , Figure 6 , Figure 7 As shown, two latches 6422 are installed at the lower part of the side wall of the slot 6421, and two slots 6472 matching the latches 6422 are provided on the side of the pressing block 647. The latches 6422 are sleeved with a third spring 648, and the third spring 648 pushes the pressing block 647 toward the side of the driving rod 645. When the guide rod 643 pulls the driving rod 645 to move to the left, the first wedge block 6471 picks up the support of the second wedge block 6451, and the pressing block 647 moves toward the side close to the driving rod 645 under the push of the third spring 648, so that the insertion interface A is opened, which is convenient for unloading the magnetic core.

[0027] Preferably, one end of the connecting sleeve 641 close to the winding shaft 642 is in a frustum shape, and the shape of the shaft hole matches the shape of the connecting sleeve 641 , so that the end plate 621 can guide and position the winding shaft 640 .

[0028] like Figure 1 , Figure 7As shown, the welding mechanism 700 includes a welding gun 710 , a first moving assembly 720 , and a second moving assembly 730 . The welding gun 710 is mounted on the first moving assembly 720 , and the first moving assembly 720 is mounted on the second moving assembly 730 .

[0029] like Figure 1 , Figure 7 As shown, the second moving assembly 730 includes a second fixed seat 731 and a second moving member 732. The second fixed seat 731 is installed on the vertical plate 101 and is located directly above the winding shaft 642. The second moving member 732 is fixed to the rear side of the second fixed seat 731. The first moving assembly 720 includes a first fixed seat 721, a first moving seat 722 and a first moving member 723. The first fixed seat 721 is connected to the moving end of the second moving member 732. The first moving member 723 is installed at the upper end of the first fixed seat 721. The first moving seat 722 is connected to the moving end of the first moving member 723. The welding gun 710 is vertically installed on the first moving seat 722. The first moving member 723 drives the first moving seat 722 to move up and down, driving the welding gun 710 to move back and forth up and down, so that the welding gun 710 is close to or away from the magnetic core. The second moving member 732 drives the first fixed seat 721 to move along the length direction of the winding shaft 742, thereby adjusting the position of the welding gun 710 in the thickness direction of the magnetic core to adapt to the welding of magnetic cores of different thicknesses. The first moving member 723 and the second moving member 732 can be cylinders or electric push rods.

[0030] Preferably, a buffer spring is installed between the welding gun 710 and the first movable seat 722 to reduce the impact of the welding gun 710 descending on the magnetic core and ensure the quality of the magnetic core.

[0031] The working principle of the embodiment of the present application is as follows: When the first telescopic member 672 is extended, the first telescopic member 672 pushes the driving arm 671 to rotate, pushing the telescopic shaft 630 to move forward to the loading position. At this time, the reel 642 extends out of the end plate 621, and the insertion port A is in an open state. At this time, the end of the strip can be sent to the insertion port A through the feeding mechanism 400; When the second telescopic member 673 is extended, the second telescopic member 673 further pushes the driving arm 671 to rotate, and continues to push the telescopic shaft 630 forward to the welding position. At this time, the driving rod 645 pushes the pressing block 647 to move toward the plug-in interface A, clamps the end of the strip, and at the same time, the hollow structure of the welding port B is enlarged. After the winding mechanism 600 winds one circle, the welding mechanism 700 welds the inner broken end of the magnetic core at the welding port B. After the inner broken end of the magnetic core is welded, the winding mechanism 600 continues to wind to the set size and then cuts it through the cutting mechanism 500. The welding mechanism 700 welds the outer ring of the magnetic core while winding.

[0032] Through the hollow welding opening B, the inner broken end of the magnetic core can be welded from the outside of the magnetic core at the initial stage of winding the magnetic core, so that the size of the winding shaft 642 can be smaller, which is suitable for welding magnetic cores with smaller inner diameters. The inner broken end of the magnetic core is clamped by the pressing block 647, which can reduce the length of the inner broken end, avoid waste of strip materials, and save the manufacturing cost of the magnetic core.

[0033] When the first telescopic member 672 and the second telescopic member 673 are both retracted, the telescopic shaft 630 moves backward to the loading position under the action of the second spring 632. At this time, the guide rod 643 pulls the driving rod 645 to move to the left, the first wedge block 6471 picks up the support of the second wedge block 6451, and the pressing block 647 moves to the side close to the driving rod 645 under the push of the third spring 648, so that the plug interface A is opened; the telescopic shaft 630 further moves backward to the unloading position under the action of the second spring 632, and the reel shaft 642 retracts the rear side of the end plate 621 to unload the welded magnetic core.

[0034] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages: 1. By setting a reel with a hollow welding position, the inner broken end of the magnetic core can be welded at the welding position at the beginning of reeling through a welding mechanism, and the outer broken end of the magnetic core can be welded after reeling, which simplifies the welding structure at the reel and reduces the design difficulty and production and maintenance costs; 2. By arranging a movable pressing block in the slot to press and fix the broken ends inside the magnetic core, and using a welding mechanism to weld the inner and outer broken ends of the magnetic core, the size of the winding shaft is reduced, so that the magnetic core with a smaller inner diameter can be automatically welded, and the application range of the welding device is improved; 3. The first telescopic member and the second telescopic member are used to control the swing amplitude of the driving arm to be different, so as to realize the switching of different positions of the telescopic axis. The structure is simple, the action is reliable, and the equipment investment cost is reduced; 4. The welding gun is controlled to move along the length direction of the winding shaft by the second moving component, and the position of the welding gun can be adjusted according to the magnetic cores of different thicknesses, thereby improving the applicability of the welding equipment.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic core break welding device, characterized in that: The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The cam is connected with the transmission assembly through a transmission element and the transmission element is connected with the transmission assembly through a transmission element. The side wall forms an insertion interface, and a first wedge block is provided on the side of the pressure block away from the insertion interface, and the first wedge block and the side wall of the slot form a welding interface of a hollow structure; a guide rod is slidably installed in the connecting sleeve, and one end of the guide rod is connected to the telescopic shaft through a connecting rod, and the other end of the guide rod is fixed with a driving rod. The outer sleeve of the driving rod is provided with a first spring, and the side of the driving rod is provided with a second wedge block, and the second wedge block cooperates with the first wedge block; when the telescopic shaft is in the unloading position, the winding shaft is located at the inner side of the end plate; when the telescopic shaft is in the loading position, the winding shaft extends out of the end plate, and the pressure block is located on the side close to the welding interface, and when the telescopic shaft is in the welding position, the second wedge block pushes the first wedge block so that the pressure block is located on the side close to the insertion interface; the welding mechanism is installed on the peripheral side of the winding mechanism, and the welding mechanism includes a welding gun and a first moving component, and the first moving component drives the welding gun to approach or move away from the welding interface.

2. A magnetic core break welding device according to claim 1, characterized in that: The length of the rotating sleeve is greater than that of the fixed sleeve, bearings are installed at both ends of the fixed sleeve, the rotating sleeve is rotatably installed in the fixed sleeve through the bearings, and both ends of the rotating sleeve extend out of the fixed sleeve; the rotating driving member is installed on one side of the fixed sleeve, and the driving shaft of the rotating driving member is connected to the rotating sleeve through the transmission assembly.

3. A magnetic core broken end welding device according to claim 1, characterized in that: The inner wall of the rotating sleeve is provided with a guide groove, and the guide groove is arranged along the length direction of the rotating sleeve; the side wall of the telescopic shaft is fixed with a guide bar, and the guide bar is slidably arranged in the guide groove.

4. A magnetic core broken end welding device according to claim 1, characterized in that: The telescopic driving member includes a driving arm, a first telescopic member and a second telescopic member, the first telescopic member and the second telescopic member are arranged in parallel on one side of the fixed sleeve, and the second telescopic member is located on a side of the first telescopic member close to the fixed sleeve; the driving arm is pivotally connected between the telescopic shaft and the first telescopic member through a pin; an axis head is installed at one end of the telescopic shaft close to the telescopic driving member, and a second spring is installed between the axis head and the rotating sleeve; when the first telescopic member and the second telescopic member are both in a retracted state, the telescopic shaft is in a unloading position under the action of the second spring; when the first telescopic member is extended and abuts against the driving arm, the other end of the driving arm abuts against the telescopic shaft, so that the telescopic shaft is in a loading position; when the second telescopic member is extended and abuts against the driving arm, the other end of the driving arm abuts against the telescopic shaft, so that the telescopic shaft is in a welding position.

5. A magnetic core broken end welding device according to claim 4, characterized in that: A universal ball is provided at the connection between the driving arm and the telescopic shaft; the telescopic length of the second telescopic member is greater than or equal to the telescopic length of the first telescopic member.

6. A magnetic core broken end welding device according to claim 1, characterized in that: A latch is fixed at the lower part of the side wall of the slot, a slot matched with the latch is opened on the side wall of the pressure block, the latch is inserted in the slot, and a third spring is sleeved on the latch.

7. A magnetic core broken end welding device according to claim 1, characterized in that: One end of the connecting sleeve close to the winding shaft is in a frustum shape.

8. The magnetic core broken end welding device according to claim 1, characterized in that: The first moving assembly includes a first fixed seat, a first moving seat and a first moving member, the first moving member is installed at the upper end of the first fixed seat, the first moving seat is connected to the first moving member, the welding gun is fixed on the first moving seat, and the first moving member drives the welding gun to move reciprocatingly up and down.

9. A magnetic core broken end welding device according to claim 8, characterized in that: The welding mechanism also includes a second moving assembly, which includes a second fixed seat and a second moving member, the second moving member is fixed to the side of the second fixed seat, the first fixed seat is connected to the second moving member, and the second moving member drives the first fixed seat to reciprocate along the length direction of the winding shaft.

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