A multifunctional vehicle body stud welding auxiliary device

Abstract

The present invention discloses a multifunctional vehicle body stud welding auxiliary device, which relates to the field of vehicle body stud auxiliary tools. The multifunctional vehicle body stud welding auxiliary device includes an adsorption assembly, which includes an insulated outer shell and a metal claw unit located within the insulated outer shell and having multiple claws. The claws extend out of the insulated outer shell and are provided with universal magnetic units at the ends of the claws. Electromagnetic units are provided at intervals on the periphery of the metal claw units. A limiting assembly includes a tension control unit located between the electromagnetic unit and the metal claw unit and an elastic pullback unit located on the inner wall of the metal claw unit. The multifunctional vehicle body stud welding auxiliary device in this application can flexibly adjust the adsorption coverage area according to the surface area of ​​the material to be welded. At the same time, for non-magnetic materials to be welded, the magnetic mode can also be changed to a clamping mode. The overall versatility is strong and the flexibility is high, which can meet the use requirements of most welding scenarios.

Description

Technical Field

[0001] The present invention relates to the field of vehicle body stud auxiliary tools, and in particular to a multifunctional vehicle body stud welding auxiliary device. Background Art

[0002] When using a welding machine to weld studs to a car body, the worker needs to hold the stud in his left hand and the welding handle in his right hand. Therefore, a welding auxiliary tool is generally required. The welding auxiliary tool is mainly used to adsorb the vehicle and clamp the welding tool, which is convenient for the worker to take and weld. The most commonly used welding auxiliary tool is magnetic. A magnet is set at the bottom of the welding auxiliary tool, which can be directly adsorbed on the bottom of the car, and a clamp is set on the top to clamp the welding tool. However, when welding an aluminum car body, since aluminum is a non-magnetic metal, it will not be magnetized and cannot generate a magnetic field. Therefore, it will not be attracted by the magnet, resulting in the inability to use the welding auxiliary tool under this working condition. At the same time, the conventional auxiliary tool has a fixed magnetic surface, and the adsorption area cannot be flexibly adjusted according to the actual welding position. The overall versatility and flexibility are low, and it cannot meet the requirements of various welding scenarios. Summary of the Invention

[0003] The present application provides a multifunctional vehicle body stud welding auxiliary device, which can solve the technical problem that the commonly used welding auxiliary tools in the prior art are magnetic and cannot be adsorbed on the aluminum body. At the same time, the magnetic surface of the auxiliary tool is fixed and the adsorption area cannot be flexibly adjusted according to the actual welding position. The overall versatility and flexibility are low, and it cannot meet the technical problems of being applicable to various welding scenarios.

[0004] The present invention provides a multifunctional vehicle body stud welding auxiliary device, comprising:

[0005] An adsorption assembly includes an insulated outer shell and a metal claw unit located within the insulated outer shell and having a plurality of claws. The claws extend out of the insulated outer shell and are provided with universal magnetic units at their ends. Electromagnetic units are spaced apart on the periphery of the metal claw unit so that when welding is performed on a non-magnetic car body, the electromagnetic units are de-energized and the universal magnetic units are rotated so that the adsorption surfaces of the universal magnetic units simultaneously face the central axis of the insulated outer shell. The plurality of claws cooperate to achieve a clamping mode.

[0006] a limiting assembly, the limiting assembly comprising a tension control unit located between the electromagnetic unit and the metal claw unit, and an elastic pull-back unit located on an inner wall of the metal claw unit;

[0007] Wherein, the universal magnetic unit includes a universal roller, the fixed end of the universal roller is connected to the bottom end of the claw body, and a magnet is provided at the rolling end of the universal roller.

[0008] In one embodiment, the electromagnetic unit includes an electromagnetic ring, the outer periphery of the electromagnetic ring is connected to the inner wall of the magnetically insulating outer shell, and the metal claw unit is located on the inner ring of the electromagnetic ring.

[0009] In one embodiment, a plurality of limiting sliding grooves are provided at the bottom of the magnetically insulating outer shell, and the center points of the plurality of limiting sliding grooves intersect, and the claw body moves in the limiting sliding grooves.

[0010] In one embodiment, the tension control unit includes a transversely arranged electric telescopic rod whose number is equal to the claw bodies, the fixed end of the electric telescopic rod is located on the inner wall of the electromagnetic ring, and the telescopic end of the electric telescopic rod faces the claw body.

[0011] In one embodiment, a main controller electrically connected to the electromagnetic unit and the electric telescopic rod is provided on the magnetically insulating outer shell.

[0012] In one embodiment, the elastic pull-back unit includes a central fixed shaft longitudinally arranged in the magnetically insulating outer shell and a pull-back spring arranged transversely, and two ends of the pull-back spring are respectively connected to the inner wall of the claw body and the shaft body of the central fixed shaft.

[0013] In one embodiment, a magnetically insulating plate is longitudinally provided between two adjacent claws, and two opposite sides of the magnetically insulating plate are respectively connected to the inner wall of the electromagnetic ring and the central fixed shaft.

[0014] In one embodiment, a universal clamping unit for clamping external tools is provided on the top of the magnetically insulated outer shell. The universal clamping unit includes a plurality of universal arms, one end of each universal arm is connected to the top of the magnetically insulated outer shell, and the other end is provided with a clamping member.

[0015] In one embodiment, the magnetically insulated outer shell is further provided with a temperature alarm unit and an operation screen.

[0016] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0017] 1. The multifunctional vehicle body stud welding auxiliary device of the present application comprises a metal claw unit, a universal magnetic unit on the claw body of the metal claw unit, and an electromagnetic unit on the periphery of the metal claw unit. When the electromagnetic unit is energized, the metal claw unit can be attracted and opened by the electromagnetic unit. Furthermore, a tension control unit is provided between the electromagnetic unit and the metal claw unit, and the adsorption coverage area can be flexibly adjusted according to the surface area of ​​the material to be welded.

[0018] 2. The angle-adjustable universal magnetic unit in the multifunctional vehicle body stud welding auxiliary device in the present application can adjust its own orientation according to the inclination posture of the surface of the material to be welded in the magnetic mode, thereby improving the fit between the adsorption surface and the material to be welded. At the same time, the connection mode between the vehicle body stud welding auxiliary device in the present application and the material to be welded can be changed to a clamping mode. Through the elastic pullback unit arranged on the inner wall of the metal claw unit, in the magnetic mode, the metal claw unit can pull the metal claw unit back to its position automatically. In the clamping mode, the clamping force of the metal claw unit can be improved. The overall versatility and flexibility are strong, and can meet the usage requirements of most welding scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A front view of a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application;

[0021] Figure 2 A schematic longitudinal section of a tension control unit and an elastic pull-back unit in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application;

[0022] Figure 3 A top view of a limiting assembly in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the structure of a claw body and a universal magnetic unit in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application;

[0024] Figure 5 A bottom view of a magnetically insulated outer shell of a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application;

[0025] Figure 6 This is a schematic structural diagram of a tension control unit and an elastic pullback unit in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application.

[0026] In the figure: 1. Insulated magnetic shell; 101. Limiting slide; 2. Universal clamping unit; 3. Electromagnetic unit; 301. Electromagnetic ring; 302. Insulated magnetic plate; 4. Metal claw unit; 401. Claw body; 5. Universal magnetic unit; 501. Universal roller; 502. Magnet; 6. Tension control unit; 601. Electric telescopic rod; 7. Elastic pull-back unit; 701. Central fixed axis; 702. Pull-back spring; 8. Main controller; 9. Temperature alarm unit; 10. Operation screen. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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 this application.

[0028] An embodiment of the present application provides a multifunctional vehicle body stud welding auxiliary device, which can solve the technical problem in the prior art that commonly used welding auxiliary tools are magnetic and cannot be adsorbed on non-magnetic aluminum bodies. At the same time, the magnetic surface of commonly used welding auxiliary tools is fixed, and the magnetic surface cannot be flexibly adjusted according to the inclination posture and area size of the actual welding part. The overall versatility and flexibility are low, and it cannot meet the technical problems applicable to various welding scenarios.

[0029] The vehicle body stud welding auxiliary device in the present application includes an adsorption component and a limiting component, wherein the adsorption component is mainly used to flexibly select between adsorption or clamping according to the material of the surface of the material to be welded, so as to maintain the connection stability between the vehicle body stud welding auxiliary device itself and the surface of the material to be welded, while the limiting component can flexibly adjust the adsorption area and inclination posture of the adsorption component itself according to the inclination of the surface of the material to be welded and the connectable area, thereby improving the flexibility and versatility of the vehicle body stud welding auxiliary device in the present application.

[0030] Specifically, Figure 1 A front view of a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application, as shown Figure 1 As shown, the adsorption assembly includes an insulated magnetic shell 1 and a metal claw unit 4 located inside the insulated magnetic shell 1 and having multiple claws 401. The claws 401 extend out of the insulated magnetic shell 1 and a universal magnetic attraction unit 5 is provided at the end of the claw 401. Electromagnetic units 3 are spaced apart on the periphery of the metal claw unit 4.

[0031] The magnetic-insulating outer shell 1 is mainly used to wrap internal parts, and its appearance includes but is not limited to a cylinder or a square, which can be determined according to actual use requirements and is not specifically restricted in this application. However, based on the fact that the connection method of the vehicle body stud welding auxiliary device in this application includes a magnetic suction type, therefore, in order to ensure the normal connection between the vehicle body stud welding auxiliary device in this application and the material to be welded, and to avoid magnetic field interference during magnetic suction, the magnetic-insulating outer shell 1 is made of non-magnetic material as a whole. The specific material includes but is not limited to copper, aluminum and other materials, which can be determined according to actual use requirements and is not specifically restricted here.

[0032] The electromagnetic unit 3 can select the power-on mode or the power-off mode according to needs. In the absence of external force, the inner side of the electromagnetic unit 3 is spaced a certain distance from the outer side of the metal claw unit 4. It should be noted that the "inside" or "inner wall" in this article is on the direction of the central axis of the magnetically insulating outer shell 1, and the "outside" or "outer wall" is on the direction away from the central axis of the magnetically insulating outer shell 1. The following will not be repeated.

[0033] Figure 4 This is a schematic structural diagram of the claw body 401 and the universal magnetic unit 5 in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application, as shown in FIG. Figure 4 As shown, the metal claw unit 4 includes a plurality of claw bodies 401, the tops of the plurality of claw bodies 401 are connected to the top of the electromagnetic unit 3, and the bottom ends of the claw bodies 401 extend downwardly out of the magnetic-insulating outer shell 1. At the same time, the ends of the claw bodies 401 extending out of the magnetic-insulating outer shell 1 can rotate with the collecting end at the top of the claw bodies 401 as the center of a circle, so that the plurality of claw bodies 401 can move closer to or away from the central axis of the magnetic-insulating outer shell 1. A group of universal magnetic units 5 are provided at the bottom of the end of each claw body 401 extending out of the magnetic-insulating outer shell 1. When the plurality of claw bodies 401 move away from the central axis of the magnetic-insulating outer shell 1 together, the universal magnetic units 5 on the claw bodies 401 will also move away, thereby increasing the overall adsorption coverage area of ​​the universal magnetic units 5. Conversely, when the plurality of claw bodies 401 move closer to the central axis of the magnetic-insulating outer shell 1 together, the adsorption area of ​​the universal magnetic units 5 decreases, and the overall adsorption coverage area of ​​the universal magnetic units 5 also decreases accordingly. Since the overall volume of the vehicle body stud welding auxiliary device in the present application is relatively small and the inner ring space of the electromagnetic ring 301 is limited, the claw body 401 in the present application is configured as a straight rod.

[0034] Furthermore, when welding a non-magnetic body, the universal magnetic unit 5 cannot adhere to the surface of the material to be welded. In this case, the electromagnetic unit 3 can be de-energized, and the universal magnetic unit 5 can be rotated so that the adsorption surface of the universal magnetic unit 5 simultaneously faces the central axis of the non-magnetic outer shell 1. The multiple claws 401 cooperate to achieve a clamping mode. Furthermore, to ensure uniform clamping or adsorption force and a stable connection between the multifunctional body stud welding auxiliary device and the material to be welded, in one embodiment of the present application, the number of claws 401 is four.

[0035] Further, Figure 2 A schematic longitudinal section of the tension control unit 6 and the elastic pull-back unit 7 in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application is shown as follows: Figure 2 As shown, the limit assembly includes a tension control unit 6 located between the electromagnetic unit 3 and the metal claw unit 4, and an elastic retraction unit 7 located on the inner wall of the metal claw unit 4. The tension control unit 6 is located between the electromagnetic unit 3 and the outer wall of the claw body 401. By adjusting the length of the tension control unit 6, the distance between the outer wall of the claw body 401 and the inner side of the electromagnetic unit 3 can be limited, thereby controlling the opening area of ​​the claw body 401 and the overall suction coverage area of ​​the universal magnetic unit 5. The elastic retraction unit 7 is located on the inner wall of the claw body 401 and can exert a retraction force on the claw body 401 by relying on its own elastic potential energy. In magnetic attraction mode, the elastic retraction unit 7 can pull the claw body 401 back to its original position after the electromagnetic unit 3 is de-energized, thus providing an automatic reset function. In clamping mode, the retraction force of the elastic retraction unit 7 can continuously exert a retraction force on the claw body 401, ensuring the overall clamping force of the metal claw unit 4.

[0036] Further, Figure 3 A top view of a position limiting component in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application, as shown in FIG. Figure 3 The electromagnetic unit 3 shown includes an electromagnetic ring 301, the outer periphery of which is connected to the inner wall of the magnetically insulated outer shell 1, and the metal claw unit 4 is located within the inner ring of the electromagnetic ring 301. In one embodiment of the present application, the outer shape of the magnetically insulated outer shell 1 is, from top to bottom, a square shell and a semicircular shell with a downwardly curved surface connected to the square shell. The electromagnetic ring 301 is located within the semicircular shell and is arranged along the inner circumference of the semicircular shell.

[0037] For further information, see Figure 4The universal magnetic unit 5 includes a universal roller 501. The fixed end of the universal roller 501 is connected to the claw body 401. A magnet 502 is provided at the rolling end of the universal roller 501. The universal roller 501 generally includes a fixed end and a universal rolling end. In the present application, the fixed end of the universal roller 501 is connected to the bottom of the claw body 401. It can be a fixed connection here to improve the integrity of the structure, or it can be a detachable connection to facilitate the maintenance of parts replacement. The specific connection method is not limited in this application. The universal rolling end of the universal roller 501 is connected to the back of the magnet 502. To facilitate the connection work, a rear shell is provided on the back of the magnet 502, and the rear shell is connected to the universal rolling end using a connector. The universal roller 501 is a commonly used technology in the existing market and will not be elaborated on here. The orientation of the magnet 502 can be adjusted through the universal roller 501. In the magnetic attraction mode, the setting of the universal roller 501 can flexibly adjust the inclination angle of the magnet 502 according to the inclination and undulating posture of the surface of the welding material, thereby improving the fit between the multifunctional vehicle body stud welding auxiliary device of this application and the welding material. In the clamping mode, multiple magnets 502 can also be adjusted to face the central axis of the magnetically insulating outer shell 1 at the same time. At this time, the multiple magnets 502 cooperate to clamp the surface of the non-magnetic material to be welded.

[0038] Further, Figure 5 A bottom view of the magnetically insulated outer shell 1 in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application, as shown in FIG. Figure 5 As shown, a plurality of limiting grooves 101 are provided at the bottom of the magnetic-insulating outer shell 1, and the center points of the plurality of limiting grooves 101 intersect. The claw body 401 moves in the limiting groove 101, and the tops of the plurality of claw bodies 401 gather above the electromagnetic ring 301. The bottom of the claw body 401 extends outside the magnetic-insulating outer shell 1 through the limiting groove 101 and can be adsorbed and opened by the electromagnetic ring 301 when the electromagnetic ring 301 is energized. In one embodiment of the present application, the number of claw bodies 401 is four, and the number of limiting grooves 101 is two. The two limiting grooves 101 are vertically arranged and the center points of the two limiting grooves 101 converge at the bottom center of the magnetic-insulating outer shell 1 to form a cross shape. The four claw bodies 401 move in the four directions along the two limiting grooves 101 respectively.

[0039] Further, Figure 6 This is a structural diagram of the tension control unit 6 and the elastic pull-back unit 7 in a multifunctional vehicle body stud welding auxiliary device provided in an embodiment of the present application, as shown in FIG. Figure 6As shown, the tension control unit 6 includes a horizontally arranged electric telescopic rod 601 and the same number as the claw body 401. The fixed end of the electric telescopic rod 601 is located on the inner wall of the electromagnetic ring 301, and the telescopic end of the electric telescopic rod 601 faces the claw body 401. In the present application, an electric telescopic rod 601 is provided on the outside of each claw body 401. The electric telescopic rod 601 is arranged horizontally, and in the absence of external force, the telescopic end of the electric telescopic rod 601 is spaced a certain distance from the outer wall of the claw body 401. When the adsorbable surface of the material to be welded is small, the telescopic end of the electric telescopic rod 601 can be controlled to extend, and the electromagnetic ring 301 01 and the claw body 401 becomes smaller. At this time, when the claw body 401 is opened to a certain distance, the telescopic end of the electric telescopic rod 601 abuts against the outer wall of the claw body 401 to prevent the claw body 401 from continuing to expand, thereby controlling the adsorption area of ​​the universal magnetic unit 5. On the contrary, when the adsorption surface of the material to be welded is large, the telescopic end of the electric telescopic rod 601 is controlled to be retracted, and the distance between the electromagnetic ring 301 and the claw body 401 becomes larger, and the adsorption area of ​​the universal magnetic unit 5 is also expanded accordingly. By controlling the overall expansion area of ​​the metal claw unit 4, the adsorption area of ​​the universal magnetic unit 5 can be flexibly adjusted.

[0040] Furthermore, the magnetically insulated outer shell 1 is provided with a main controller 8 electrically connected to the electromagnetic unit 3 and the electric telescopic rod 601 respectively. The power-on state of the electromagnetic unit 3 and the telescopic state and telescopic length of the electric telescopic rod 601 are all realized by the main controller 8. The main controller 8 is arranged outside the magnetically insulated outer shell 1. The main controller 8 generally includes a control main board, a transmission line and other components, which are all existing commonly used control devices and will not be elaborated here. At the same time, the specific setting position of the main controller 8 on the magnetically insulated outer shell 1 is determined according to actual operating requirements and is not specifically restricted here.

[0041] Furthermore, the elastic pull-back unit 7 includes a central fixed shaft 701 longitudinally arranged in the magnetically insulated outer shell 1 and a pull-back spring 702 transversely arranged. The two ends of the pull-back spring 702 are respectively connected to the inner wall of the claw body 401 and the shaft of the central fixed shaft 701 .

[0042] The central fixed shaft 701 is a metal rod, which is fixedly arranged in the magnetically insulated outer shell 1 along the central axis of the magnetically insulated outer shell 1. A return spring 702 is provided on each claw body 401. When the metal claw unit 4 is in the retracted state, the return spring 702 is normally stretched. When the electromagnetic unit 3 is energized, it begins to adsorb the metal claw unit 4 and open it, and the return spring 702 is pulled open accordingly. The rebound force of the return spring 702 is less than the magnetic attraction force of the electromagnetic unit 3, which can ensure the speed and stability of the opening process of the metal claw unit 4. When the electromagnetic unit 3 is powered off, the automatic retraction of the return spring 702 can pull the metal claw unit 4 to reset. At the same time, when the vehicle body stud welding auxiliary device in this application changes to the clamping mode, the claw body 401 in the metal claw unit 4 is opened, and the return spring 702 can always give each claw body 401 a return force, which can ensure the clamping force of the metal claw unit 4.

[0043] For further information, see Figure 3 An insulating plate 302 is longitudinally provided between two adjacent claw bodies 401, and two opposite sides of the insulating plate 302 are respectively connected to the inner wall of the electromagnetic ring 301 and the central fixed shaft 701. Since the overall volume of the vehicle body stud welding auxiliary device in this application is relatively small, the two adjacent claw bodies 401 may be closely spaced. The insulating plate 302 can prevent the magnetic force of the two adjacent claw bodies 401 from being disordered when the electromagnetic ring 301 is energized. In one embodiment of the present application, the insulating plate 302 is a strip-shaped plate, and its two long sides are respectively fixedly connected to the inner wall of the electromagnetic ring 301 and the central fixed shaft 701. The material of the insulating plate 302 includes but is not limited to copper, aluminum and other materials, and no specific restrictions are made here.

[0044] Furthermore, a universal clamping unit 2 for clamping external tools is provided at the top of the insulated magnetic housing 1. The universal clamping unit 2 includes several universal arms, one end of which is connected to the top of the insulated magnetic housing 1, and the other end is provided with a clamping piece. The number of universal arms is not specifically limited in this application. In one embodiment of the present application, the top of the insulated magnetic housing 1 is a square body, and the cross-section includes four vertex angles, so the number of universal arms is also four. The universal arms are arranged at the top of the four vertex angles of the insulated magnetic housing 1. The connection method between the universal arms and the insulated magnetic housing 1 is preferably a detachable connection, that is, several threaded sleeves are provided at the top of the insulated magnetic housing 1, and an external thread matching the internal thread of the threaded sleeve is provided at the bottom of the universal arm. The universal arm itself has a certain amount of deformability, which is convenient for arbitrary bending angles and deformation during work. The bendable and deformable universal arm is an existing common technology and will not be described in detail here. The clamping piece is mainly used to clamp external tools, such as lighting lamps, welding torches, etc. The clamping piece is connected to the top of the universal arm, and a steering piece is provided at the connection to achieve flexible steering of the clamping piece.

[0045] Furthermore, a temperature alarm unit 9 and an operation screen 10 are provided on the magnetically insulated outer shell 1. The temperature alarm unit 9 and the operation screen 10 are both electrically connected to the main controller 8. The temperature alarm unit 9 monitors the temperature of the welding part in real time and compares it with a preset temperature threshold. When the temperature of the welding part is too high, the temperature alarm unit 9 issues an alarm to prevent the temperature of the welding part from being too high and affecting the welding quality. The operation screen 10 is used to display the temperature of the part to be welded, and an operation interface is provided on the operation screen 10, which facilitates the control of the power-on status of the electromagnetic unit 3 and the telescopic status of the electric telescopic rod 601, thereby improving the convenience of operation.

[0046] Furthermore, as an optional embodiment, under the premise of sufficient space, the vehicle body stud welding auxiliary device in the present application can also be equipped with a self-generating unit, which can convert the heat generated by welding into electrical energy for its own use. Thermoelectric effect is an existing commonly used technology and will not be described in detail in this application.

[0047] The working mechanism of the vehicle body stud welding auxiliary device in the present application is as follows: a suitable connection method is selected according to the material of the material to be welded. When the surface of the material to be welded is a magnetic material, the electromagnetic unit 3 is turned on and the extension length of the electric telescopic rod 601 is selected according to the surface area of ​​the material to be welded. Then, the metal claw unit 4 is adsorbed and begins to slowly open until the outer wall of the claw body 401 of the metal claw unit 4 is against the telescopic end of the electric telescopic rod 601. Then, according to the surface inclination of the material to be welded, the angle of the magnet 502 in the universal magnetic unit 5 is adjusted. When the surface of the material to be welded is a non-magnetic material, the clamping mode is adopted, that is, the electromagnetic unit 3 is not energized, and the magnet 502 in the universal magnetic unit 5 is directly adjusted to face the central axis of the magnetic-free outer shell 1. Then, the return force of the return spring 702 is overcome, and the metal claw unit 4 is manually opened, and then the material to be welded is clamped at a suitable angle. In the magnetic suction mode, it can adjust its own orientation according to the inclination of the surface of the material to be welded, thereby improving the fit between the adsorption surface and the material to be welded. At the same time, the connection mode between the vehicle body stud welding auxiliary device in this application and the material to be welded can be changed to a clamping mode.

[0048] The vehicle body stud welding auxiliary device in the present application is provided with a metal claw unit 4, a universal magnetic unit 5 on the claw body 401 of the metal claw unit 4, and an electromagnetic unit 3 on the outer periphery of the metal claw unit 4. When the electromagnetic unit 3 is energized, the metal claw unit 4 can be adsorbed and opened by the electromagnetic unit 3, and a tension control unit 6 is provided between the electromagnetic unit 3 and the metal claw unit 4, so that the adsorption coverage area can be flexibly adjusted according to the surface area of ​​the material to be welded. At the same time, the universal magnetic unit 5 can adjust its own orientation according to the inclination posture of the surface of the material to be welded, thereby improving the fit between the adsorption surface and the material to be welded. By providing an elastic pullback unit 7 on the inner wall of the metal claw unit 4 and cooperating with the universal magnetic unit 5 with adjustable angle, in the magnetic mode, the elastic pullback unit 7 can pull the metal claw unit 4 back to its original position automatically. In the clamping mode, the elastic pullback unit 7 can increase the clamping force of the metal claw unit 4 to be suitable for non-magnetic materials to be welded. The overall versatility is strong and the flexibility is high, which can meet the usage requirements of most welding scenarios.

[0049] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0051] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A multifunctional vehicle body stud welding auxiliary device, characterized in that: include: An adsorption component, the adsorption component comprises an absolute magnetic outer shell (1) and a metal claw unit (4) located in the absolute magnetic outer shell (1) and having a plurality of claws (401), the claws (401) extending out of the absolute magnetic outer shell (1) and a universal magnetic unit (5) provided at the end of the claw (401), and electromagnetic units (3) spaced apart on the outer periphery of the metal claw unit (4) so ​​that when welding a non-magnetic vehicle body, the power-on state of the electromagnetic unit (3) is cut off, and the direction of the universal magnetic unit (5) is rotated so that the adsorption surface of the universal magnetic unit (5) simultaneously faces the central axis of the absolute magnetic outer shell (1), and the plurality of claws (401) cooperate to thereby change into a clamping mode; A limiting assembly, comprising a tension control unit (6) located between the electromagnetic unit (3) and the metal claw unit (4), and an elastic pull-back unit (7) located on the inner wall of the metal claw unit (4); The universal magnetic unit (5) comprises a universal roller (501), the fixed end of the universal roller (501) is connected to the bottom end of the claw body (401), and a magnet (502) is provided at the rolling end of the universal roller (501).

2. A multifunctional vehicle body stud welding auxiliary device according to claim 1, characterized in that: The electromagnetic unit (3) comprises an electromagnetic ring (301), the outer periphery of the electromagnetic ring (301) is connected to the inner wall of the magnetically insulating outer shell (1), and the metal claw unit is located inside the inner ring of the electromagnetic ring (301).

3. The multifunctional vehicle body stud welding auxiliary device according to claim 1, characterized in that: A plurality of limiting sliding grooves (101) are provided at the bottom of the magnetically insulated outer shell (1), and the center points of the plurality of limiting sliding grooves (101) intersect, and the claw body (401) moves in the limiting sliding grooves (101).

4. A multifunctional vehicle body stud welding auxiliary device as claimed in claim 2, characterized in that: The tension control unit (6) comprises electric telescopic rods (601) arranged transversely and having the same number as the claw bodies (401), wherein the fixed ends of the electric telescopic rods (601) are located on the inner wall of the electromagnetic ring (301), and the telescopic ends of the electric telescopic rods (601) face the claw bodies (401).

5. A multifunctional vehicle body stud welding auxiliary device as claimed in claim 4, characterized in that: The magnetically insulated outer shell (1) is provided with a main controller (8) electrically connected to the electromagnetic unit (3) and the electric telescopic rod (601) respectively.

6. A multifunctional vehicle body stud welding auxiliary device as claimed in claim 2, characterized in that: The elastic pull-back unit (7) comprises a central fixed shaft (701) longitudinally arranged in the magnetically insulated outer shell (1) and a pull-back spring (702) arranged transversely, wherein the two ends of the pull-back spring (702) are respectively connected to the inner wall of the claw body (401) and the shaft body of the central fixed shaft (701).

7. A multifunctional vehicle body stud welding auxiliary device as claimed in claim 6, characterized in that: A magnetically insulating plate (302) is longitudinally provided between two adjacent claw bodies (401), and two opposite sides of the magnetically insulating plate (302) are respectively connected to the inner wall of the electromagnetic ring (301) and the central fixed shaft (701).

8. The multifunctional vehicle body stud welding auxiliary device according to claim 1, characterized in that: A universal clamping unit (2) for clamping external tools is provided on the top of the magnetic-insulating outer shell (1). The universal clamping unit (2) comprises a plurality of universal arms, one end of each universal arm is connected to the top of the magnetic-insulating outer shell (1), and the other end is provided with a clamping piece.

9. The multifunctional vehicle body stud welding auxiliary device according to claim 1, characterized in that: The magnetically insulated outer shell (1) is also provided with a temperature alarm unit (9) and an operating screen (10).

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