Gun-press elastic grounding line

Abstract

The application discloses a gun pressure elastic grounding wire, which comprises a welding unit, a grounding unit and an elastic element, the grounding unit comprises a sleeve, a lifting seat and a fixing seat which are sequentially threadedly connected, a grounding wire connecting seat is arranged between the lifting seat and the fixing seat, and the two sides of the grounding wire connecting seat are abuttingly connected with the lifting seat and the fixing seat respectively; the welding unit moves along the center line direction of the sleeve and extends out of the fixing seat to be welded and fixed with sheet metal, and the fixing seat is driven to abut against the sheet metal by the elastic element to conduct the sheet metal and the grounding wire connecting seat. When the height of the flow guide surface is slightly adjusted, the lifting seat can be directly rotated; when the height of the flow guide surface is greatly adjusted, the fixing seat is first rotated downward to loosen the grounding wire connecting seat, and then the lifting seat is rotated to adjust the height of the flow guide surface, at this time, the grounding wire connecting seat cannot rotate together with the lifting seat, and the phenomenon that the grounding wire is wound around the sleeve does not occur; the height of the flow guide surface and the operation of fixing the grounding wire connecting seat are better coordinated, and the operation is more flexible and faster.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding, in particular to a gun pressure elastic grounding wire. BACKGROUND

[0002] The traditional automobile sheet metal repair welding uses a grounding wire mode including a clamp type, a stud type, a magnetic attraction type and a hanging piece type, wherein the stud type grounding wire is a more widely used wiring mode at present. In the operation of the traditional stud type grounding wire, the stud type grounding wire is fixed to the sheet metal by thread cooperation and manual tightening, thereby realizing the grounding wire of the sheet metal.

[0003] However, in the related art, the height of the flow guide surface and the fixing of the terminal are interfered with each other, and the adjustment operations of the two are difficult to coordinate well, which is not convenient for workers to adjust quickly.

[0004] In the Chinese invention patent No. 201710257899.9, a hand pressure elastic grounding wire for welding is disclosed, wherein the metal screw rod is threadedly connected with the grounding nut and the terminal nut, and the terminal is connected between the grounding nut and the terminal nut. The metal rod is extended out of the grounding nut and welded to the sheet metal, and the grounding nut is pressed and fixed to the sheet metal by the elastic force of the spring. In use, the height of the grounding nut needs to be adjusted to adjust the distance between the grounding nut and the sheet metal after the hand pressure metal plate is extended, so as to better play the role of the elastic force of the spring and press the sheet metal tightly. However, the thread connection of the metal screw rod with the grounding nut and the terminal nut needs to be operated before or after the grounding nut when adjusting the height of the grounding nut. For example, when the grounding nut is adjusted upward, the terminal nut needs to be rotated upward first, and then the terminal is fixed when the grounding nut is adjusted upward. When the grounding nut is adjusted downward, the terminal nut needs to be rotated downward after the grounding nut is rotated downward, so as to fix the terminal nut. The height of the flow guide surface cannot be directly adjusted while keeping the terminal fixed.

[0005] In the Chinese invention patent No. 201810281545.2, a gun pressure elastic grounding wire is disclosed, and the height of the flow guide surface needs to be adjusted in use. The insulating base and the grounding wire base are fixed by screws, and the terminal is fixed to the side of the grounding wire base. When the height of the flow guide surface is adjusted, the insulating base and the grounding wire base are rotated at the same time, and the grounding wire base cannot be loosened alone. However, when the rotation is adjusted, the wire will also rotate, and after rotating for many turns, the grounding wire will be wound around the insulating sleeve, which will hinder the use and subsequent operation of the worker. SUMMARY

[0006] The gun pressure elastic grounding wire can better coordinate the adjustment of the height of the flow guide surface and the fixing of the grounding wire connecting seat, and is convenient for quick adjustment and use of workers.

[0007] The gun pressure elastic grounding wire according to the embodiment of the present application comprises a welding unit, a grounding unit and an elastic element, the grounding unit comprises a sleeve, a lifting seat and a fixing seat which are threadedly connected in sequence, a grounding wire connecting seat is arranged between the lifting seat and the fixing seat, and the two sides of the grounding wire connecting seat are abuttingly connected with the lifting seat and the fixing seat respectively;

[0008] The welding unit moves along the center line direction of the sleeve and extends out of the fixing seat to be welded and fixed with sheet metal, and the fixing seat is abutted against the sheet metal by the elastic element to conduct the sheet metal and the grounding wire connecting seat.

[0009] The gun pressure elastic grounding wire according to the embodiment of the present application has at least the following beneficial effects: when the height of the flow guide surface needs to be adjusted slightly, the worker can directly rotate the lifting seat, and the grounding wire connecting seat and the fixing seat remain fixed; when the height of the flow guide surface needs to be adjusted greatly, the worker can first rotate the fixing seat downward to loosen the grounding wire connecting seat, and then rotate the lifting seat to adjust the height of the flow guide surface, since the grounding wire connecting seat does not rotate together with the lifting seat, the phenomenon of winding the grounding wire around the sleeve does not occur; the two operations of adjusting the height of the flow guide surface and fixing the grounding wire connecting seat are better coordinated, and the operation is more flexible and quick.

[0010] According to the gun pressure elastic grounding wire, one end of the sleeve towards the grounding wire connecting seat is provided with a first external thread, the lifting seat is provided with a first internal thread and a second external thread, the fixing seat is provided with a second internal thread, the first internal thread and the first external thread are connected in cooperation, and the second internal thread and the second external thread are connected in cooperation.

[0011] According to the gun pressure elastic grounding wire, the welding unit comprises a metal rod and a pressing seat which are fixedly connected with each other, the metal rod is sequentially arranged in the sleeve, the lifting seat and the fixing seat, the outer wall of the sleeve is provided with a first convex ring, and the first convex ring and the pressing seat are matched to drive the metal rod to move along the center line direction of the sleeve and extend out of the fixing seat.

[0012] According to the gun pressure elastic grounding wire, the sleeve and the pressing seat are both made of insulating material.

[0013] The gun pressure elastic grounding wire further comprises a fixing sleeve arranged between the sleeve and the lifting seat, and the fixing sleeve is provided with a second protruding ring, and two sides of the second protruding ring are respectively abuttingly connected with the sleeve and the lifting seat.

[0014] The gun pressure elastic grounding wire further comprises a welding unit, and the welding unit comprises a metal rod, the metal rod is arranged in the sleeve, the elastic element is a compression spring, the compression spring is sleeved on the metal rod and arranged in the sleeve, and the metal rod is fixedly provided with a blocking piece, and two ends of the compression spring are respectively abuttingly connected with the blocking piece and the fixing sleeve.

[0015] The gun pressure elastic grounding wire further comprises a spring intermediate piece arranged between the lifting seat and the grounding wire connecting seat, and two sides of the spring intermediate piece are respectively abuttingly connected with the lifting seat and the grounding wire connecting seat.

[0016] The outer wall of the lifting seat is provided with two symmetrically arranged first clamping grooves, and the two first clamping grooves are matched to rotate the lifting seat.

[0017] The outer wall of the fixing seat is provided with two symmetrically arranged second clamping grooves, and the two second clamping grooves are matched to rotate the fixing seat.

[0018] The grounding wire connecting seat is provided with a circular connecting part used for connecting with a wire core.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0021] Figure 1 It is a sectional structure schematic view of the gun pressure elastic grounding wire of the embodiment of the present application.

[0022] Figure 2 It is a whole structure schematic view of the gun pressure elastic grounding wire of the embodiment of the present application.

[0023] EXPLANATION OF REFERENCE NUMERALS

[0024] Sleeve 110, first protruding ring 1101, compression spring 111, lifting seat 120, first clamping groove 121, fixing seat 130, second clamping groove 131, fixing sleeve 140, second protruding ring 141, spring intermediate piece 150.

[0025] Metal rod 210; blocking piece 211; pressing seat 220;

[0026] Ground wire connecting seat 300; connecting part 310. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0031] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0032] In the related art, the two operations of adjusting the height of the flow guide surface and fixing the terminal exist mutual interference, the adjustment operations of the two are difficult to be well coordinated, and it is inconvenient for workers to quickly adjust.

[0033] Therefore, as shown inFigure 1 and Figure 2 As shown in FIGS. 1-3, the gun pressure elastic grounding wire provided by the present application comprises a welding unit, a grounding unit and an elastic element, wherein the grounding unit comprises a sleeve 110, a lifting seat 120 and a fixing seat 130 which are threadedly connected in sequence; a grounding wire connecting seat 300 is arranged between the lifting seat 120 and the fixing seat 130, a grounding wire is connected with the grounding wire connecting seat 300 and is in conduction with the grounding wire connecting seat 300, and the two sides of the grounding wire connecting seat 300 are respectively abuttingly connected with the lifting seat 120 and the fixing seat 130. Specifically, the welding unit moves along the center line direction of the sleeve 110 and extends out of the fixing seat 130 to be welded and fixed with the sheet metal, and the fixing seat 130 is driven by the elastic element to abut against the sheet metal to conduct the sheet metal and the grounding wire connecting seat 300. In use, when a small amplitude adjustment of the height of the flow guide surface is needed, the worker can directly rotate the lifting seat 120, and the grounding wire connecting seat 300 and the fixing seat 130 remain fixed; when a large amplitude adjustment of the height of the flow guide surface is needed, the worker can first rotate the fixing seat 130 downward to loosen the grounding wire connecting seat 300, and then rotate the lifting seat 120 to adjust the height of the flow guide surface, since the grounding wire connecting seat 300 will not rotate together with the lifting seat 120, the phenomenon of the grounding wire winding around the sleeve 110 will not occur; the two operations of adjusting the height of the flow guide surface and fixing the grounding wire connecting seat 300 are better coordinated, and the operation is more flexible and fast. In some embodiments, the welding unit comprises a metal rod 210 and a pressing seat 220 which are fixedly connected with each other, the metal rod 210 is sequentially arranged in the sleeve 110, the lifting seat 120 and the fixing seat 130, and the outer wall of the sleeve 110 is provided with a first convex ring 1101, the first convex ring 1101 and the pressing seat 220 cooperate to drive the metal rod 210 to move along the center line direction of the sleeve 110 and extend out of the fixing seat 130. The lower end of the metal rod 210 is provided with a pointed conical welding head, which is convenient for contact and welding with the sheet metal.

[0034] After the gun pressure elastic grounding wire assembly is completed, the welding unit is lifted upward under the elastic force of the elastic element, and the pointed welding head of the metal rod 210 is hidden in the fixed seat 130. Before use, the height of the flow guide surface, that is, the height of the bottom surface of the fixed seat 130, is adjusted, so that after the welding unit is welded and fixed, the pressure between the grounding unit and the automobile sheet metal is controlled, and before use, the ground wire needs to be connected to the ground wire connecting seat 300. When in use, the operator presses the pressing seat 220 with his hand, overcomes the elastic force of the elastic element, and makes the pointed welding head of the metal rod 210 protrude outside the flow guide surface and contact the automobile sheet metal. The operator simultaneously makes the spot welding gun contact the sheet metal for a short time, the metal rod 210 passes through the large current for a short time, and the pointed welding head is welded and fixed on the sheet metal. After the operator releases the pressing pressing seat 220, the grounding unit approaches the sheet metal under the elastic force of the elastic element, and the flow guide surface is tightly attached to the sheet metal, thereby maintaining good contact with the sheet metal, and the installation of the grounding wire is completed. Among them, the sleeve 110 and the pressing seat 220 are made of insulating materials, and the user can touch them with bare hands without conducting electricity, and the operation is more convenient. Alternatively, the sleeve 110 and the pressing seat 220 are plastic parts. In some embodiments, the pressing seat 220 is made of metal material, the middle part of the pressing seat 220 is provided with a concave cavity in the shape of an inverted cone, which can be matched with welding and drawing tools of different diameters, and open grooves with open tops are symmetrically arranged on the side wall, which facilitates the cooperation with special-shaped drawing tools such as large triangular sheet sliding hammers. It is easy to understand that when the pressing seat 220 is made of metal material, there is a risk of electrification, and the worker can wear insulating gloves to work.

[0035] In some embodiments of the application, as Figure 1As shown, the sleeve 110 is provided with a first external thread at one end of the ground wire connecting seat 300, the lifting seat 120 is provided with a first internal thread and a second external thread, the fixing seat 130 is provided with a second internal thread, the first internal thread and the first external thread are matched and connected, the second internal thread and the second external thread are matched and connected, the threaded transmission connection has a self-locking function, the connection structure is stable, and the worker can conveniently rotate to make linear movement. Further, in order to further improve the stability of the connection of the lifting seat 120, in some embodiments, a fixing sleeve 140 is arranged between the sleeve 110 and the lifting seat 120, the fixing sleeve 140 is provided with a second protruding ring 141, and the two sides of the second protruding ring 141 are respectively abutted and connected with the sleeve 110 and the lifting seat 120. According to different sheet metal conditions and comprehensive consideration of actual application conditions, a second protruding ring 141 with a suitable thickness is selected, when assembling, the lifting seat 120 is rotated relative to the sleeve 110, the lifting seat 120 is moved upward, and when the lifting seat 120 moves to the end point, the lifting seat 120 is abutted and fixed with the second protruding ring 141. Further, the elastic element is a compression spring 111, the compression spring 111 is sleeved on the metal rod 210 and arranged in the sleeve 110, the metal rod 210 is fixedly installed with a blocking piece 211, and the two ends of the compression spring 111 are respectively abutted and connected with the blocking piece 211 and the fixing sleeve 140. The compression spring 111 is hidden in the sleeve 110, so that the compression spring 111 is not exposed, and the overall appearance is better.

[0036] In some embodiments of the present application, as shown in Figure 1 As shown, the lifting seat 120 and the ground wire connecting seat 300 are provided with a spring intermediate piece 150, the two sides of the spring intermediate piece 150 are respectively abutted and connected with the lifting seat 120 and the ground wire connecting seat 300, further improving the stability and reliability of the connection of the ground wire connecting seat 300, ensuring the conduction of the ground wire and the sheet metal part, and ensuring safety. Specifically, the ground wire connecting seat 300 is sleeved on the lifting seat 120, the spring intermediate piece 150 abuts against the ground wire connecting seat 300 to drive the ground wire connecting seat 300 to abut against the fixing seat 130, and the contact conduction of the ground wire connecting seat 300 and the fixing seat 130 is ensured.

[0037] In some embodiments of the present application, as shown in Figure 2 As shown, the outer wall of the lifting seat 120 is provided with two symmetrically arranged first clamping grooves 121, and the two first clamping grooves 121 are matched to rotate the lifting seat 120. Similarly, the outer wall of the fixing seat 130 is provided with two symmetrically arranged second clamping grooves 131, and the two second clamping grooves 131 are matched to rotate the fixing seat 130. When the worker rotates the lifting seat 120 and / or the fixing seat 130, a wrench can be used to clamp the first clamping grooves 121 and the second clamping grooves 131 respectively, so that the lifting seat 120 and / or the fixing seat 130 are rotated to realize the movement of the lifting seat 120 and / or the fixing seat 130 along the center line direction of the sleeve 110.

[0038] In some embodiments of the present application, asFigure 1 As shown in the figure, the ground wire connecting seat 300 is provided with a round connecting part 310 for connecting with the wire core, and the wire core connection is more convenient. For example, the wire core is inserted into the connecting part 310 through a conversion piece, or the middle part of the connecting part 310 is provided with a deformation groove, and the wire core is inserted into the deformation groove and then a tool is used to flatten the connecting part 310 to fix the wire core.

[0039] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of the ordinary skill in the art without departing from the purpose of the present application.

Claims

1. A gun pressure elastic grounding wire, comprising a welding unit, a grounding unit and an elastic element, characterized in that: the grounding unit comprises a sleeve, a lifting seat and a fixing seat which are threadedly connected in sequence, a grounding wire connecting seat is arranged between the lifting seat and the fixing seat, and the two sides of the grounding wire connecting seat are respectively in abutting connection with the lifting seat and the fixing seat; the welding unit moves along the center line direction of the sleeve and extends out of the fixing seat to be welded with sheet metal, and the fixing seat is driven by the elastic element to abut against the sheet metal to conduct the sheet metal and the grounding wire connecting seat; one end of the sleeve towards the grounding wire connecting seat is provided with a first external thread, the lifting seat is provided with a first internal thread and a second external thread, the fixing seat is provided with a second internal thread, the first internal thread and the first external thread are in matched connection, and the second internal thread and the second external thread are in matched connection; the welding unit comprises a metal rod and a pressing seat which are fixedly connected with each other, the metal rod is sequentially arranged in the sleeve, the lifting seat and the fixing seat, the outer wall of the sleeve is provided with a first protruding ring, and the first protruding ring and the pressing seat are matched to drive the metal rod to move along the center line direction of the sleeve and extend out of the fixing seat; a fixing sleeve is further arranged between the sleeve and the lifting seat, the fixing sleeve is provided with a second protruding ring, and the two sides of the second protruding ring are respectively in abutting connection with the sleeve and the lifting seat; the welding unit comprises a metal rod, the metal rod is arranged in the sleeve, the elastic element is a compression spring, the compression spring is sleeved on the metal rod and arranged in the sleeve, the metal rod is fixedly installed with a blocking piece, and the two ends of the compression spring are respectively in abutting connection with the blocking piece and the fixing sleeve. The sleeve and the pressing seat are both made of insulating material. The lifting seat and the grounding wire connecting seat are further provided with a spring meson, and the two sides of the spring meson are respectively in abutting connection with the lifting seat and the grounding wire connecting seat. The outer wall of the lifting seat is provided with two symmetrically arranged first clamping grooves, and the two first clamping grooves are matched to rotate the lifting seat. The outer wall of the fixing seat is provided with two symmetrically arranged second clamping grooves, and the two second clamping grooves are matched to rotate the fixing seat. The grounding wire connecting seat is provided with a circular connecting part for connecting with a wire core. ​ 2. The gun-press elastic grounding line according to claim 1, characterized in that: ​ 3. The gun-press flexible grounding line according to claim 1 or 2, characterized in that: ​ 4. The gun-press flexible ground line of claim 1, wherein: ​ 5. The gun-press flexible grounding line according to claim 1 or 4, characterized in that: ​ 6. The gun-press flexible ground line of claim 1, wherein: ​

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