Welding device for conductive joint on automobile front cabin cover
By designing a welding device including a welding torch body, a welding torch nozzle, a fixing sleeve, a support rod and a chuck structure, the problem of unstable support rod connection during the conductive joint welding process is solved, and a high-reliability conductive joint welding effect is achieved.
Patent Information
- Application Number
- CN202421766662.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In the prior art, during the welding process of conductive joints, the connection between the support rod and the welding torch power supply is easily caused by adjustment to pull or squeeze the wire, reducing the conductive effect.
A welding device including a welding torch body, a welding torch nozzle, a fixing sleeve, a support rod and a chuck structure is designed. Through the direct connection between the support rod and the welding torch body power supply, the spring and chuck structure are used to ensure the conductive effect of the support rod, and the welding accuracy and stability are improved through the correction cover and limit block.
Through this device, the conductive reliability between the conductive joint and the front hatch cover of the car is improved, the installation process of the support rod is simplified, and the efficient conductive effect is maintained during multiple uses.
Smart Images
Figure CN222919766U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the installation of conductive joints of automobile front hoods, and particularly relates to a welding device for conductive joints of automobile front hoods. Background Art
[0002] Conductive joints are common components on automobile front hoods. Through the conductive joints arranged on the automobile front hood, the power sources on the automobile front hood can be unified, so as to conveniently connect multiple automobile circuits together, thereby simplifying the automobile wiring, saving a large amount of wires, directly reducing the cost expenditure, and naturally reducing the difficulty of later maintenance and inspection. More importantly, this design can effectively reduce radio interference and avoid affecting radio communication. In order to ensure the firmness of the fixation of the conductive joint, the conductive joint is welded on the automobile front hood. When spot welding is used for the conductive joint, a fixture is used to press the conductive joint against one side of the automobile front hood, and the area between the side wall of the conductive joint and the automobile front hood is welded by using welding multiple times, so as to complete the welding operation of the conductive joint. However, after the welding operation of the conductive joint is completed, operations such as grinding and painting need to be carried out on the shaping of the automobile front hood. During this operation process, the weld skin between the side wall of the conductive joint and the automobile front hood may be worn, thereby reducing the reliability of the fixation of the conductive joint; in addition, the weld skin between the side wall of the conductive joint and the automobile front hood will affect the appearance of the automobile front hood, making it difficult for spot welding to meet the installation requirements of the conductive joint of the front hood.
[0003] In order to ensure the welding quality of the conductive joint of the front hood, arc welding is used to complete the welding operation of the conductive joint. The use of arc welding to complete the welding operation requires the assistance of a stud welding gun. The stud welding gun mainly consists of a stud power source and a welding gun. The principle of stud welding is a combination of arc welding and forging. Therefore, the welding process is divided into two steps. First, the end of the conductive joint is contacted with the surface of the automobile front hood, and an arc is ignited by passing an electric current between the end of the conductive joint and the automobile front hood, so as to heat and the contact surface between the end of the conductive joint and the automobile front hood; after the contact surface between the end of the conductive joint and the automobile front hood is fully melted, the power is cut off and a certain pressure is immediately applied to the conductive joint, so that the conductive joint is pressed against the workpiece. The melted end of the stud is fused with the molten pool on the surface of the automobile front hood and solidifies to achieve connection. This welding method does not use filler metal and can use or not use shielding gas or flux. By fully melting on the bonding surface and applying a certain pressure, the welding method can be completed. This method can prevent the generation of weld skin at the edge of the conductive joint and the surface of the automobile front hood, avoid the influence of grinding on the welding quality, and at the same time help to improve the aesthetic degree of the automobile front hood.
[0004] However, the arc welding operation requires a conductive circuit to be formed between the conductive joint and the front hood of the vehicle. This means that the conductive joint and the front hood of the vehicle need to be connected to the conductive circuit of the stud welding gun power supply. Since it is very troublesome to connect the conductive joint and the front hood of the vehicle with wires, in order to simplify the difficulty of connecting the conductive joint and the front hood of the vehicle to the circuit, the welding nozzle of the stud welding gun is also connected to the conductive circuit of the stud welding gun power supply. In this way, by clamping the conductive joint to the welding nozzle, the connection operation of the conductive joint can be completed. In order to facilitate the connection of the front hood of the vehicle to the circuit, a conductive support rod is installed on the stud welding gun. The support rod is connected to the conductive circuit of the stud welding gun power supply, and one end of the support rod is abutted against the front hood of the vehicle, thereby completing the operation of connecting the front hood of the vehicle to the circuit, and then quickly completing the operation of connecting the conductive joint and the front hood of the vehicle to the circuit. However, due to the different lengths of the conductive joints, in order to ensure that both the conductive joint and the support rod are abutted against the front hood of the vehicle, it is necessary to adjust the installation position of the support rod on the welding gun according to the length of the conductive joint. In this way, the position where the support rod is connected to the circuit will change. If wires are used to connect the support rod and the stud welding gun power supply, the wires will be pulled or squeezed when the support rod is adjusted multiple times, thereby reducing the conductive effect of the wires. If a fixed sleeve is used to connect the support rod and the stud welding gun power supply, after the support rod slides multiple times, as the wear between the fixed sleeve and the support rod increases, the contact area between the fixed sleeve and the support rod decreases, resulting in a still reduced conductive effect. Therefore, there are improvements in the conductivity of the conductive joint in arc welding to improve the reliability of conductivity. Summary of the Invention
[0005] In view of the deficiencies of the prior art, the utility model provides a welding device for a conductive joint on the front hood of a vehicle, which increases the conductive effect of the support rod, and is used to overcome the defects in the prior art.
[0006] The technical solution adopted by the utility model is as follows: A welding device for a conductive joint on the front hood of a vehicle, including a welding gun body and a welding nozzle provided at the end of the welding gun body. A fixed sleeve is sleeved on the welding gun body, and the fixed sleeve is installed on the welding gun body. A fixed block is provided on one side of the fixed sleeve, and the fixed block and the fixed sleeve are of an integral structure. A sleeve hole is vertically opened on the fixed block, and a support rod is sleeved in the sleeve hole. On one side of the fixed block close to the welding nozzle, a semi-circular first chuck and a second chuck are respectively provided. The first chuck and the second chuck are respectively movably sleeved on both sides of the support rod. The top of the first chuck is installed on the fixed block. Wings are respectively provided on both sides of the first chuck and both sides of the second chuck. The wings are installed on the first chuck or the second chuck. A through hole is opened on the wing, and a first bolt is movably sleeved in the through hole. The diameter of the through hole is matched with the diameter of the first bolt. First springs and nuts are respectively sleeved on both sides of the first bolt. The nut is threadedly sleeved on the first bolt. One side of the first spring is in contact with the nut of the first bolt. The wings installed on the first chuck and the wings installed on the second chuck clamp the other side of the first spring through the nut.
[0007] Preferably, a second spring is sleeved on the top of the support rod, a support block is arranged above the second spring, and two sides of the second spring are respectively installed on the fixed block and the support block.
[0008] Preferably, the number of the sleeve holes is two, the two sleeve holes are respectively opened on two sides of the fixed block, the number of the support rods is two, the two support rods are respectively sleeved in the two sleeve holes, and a first chuck and a second chuck are respectively sleeved on the two support rods.
[0009] Preferably, a correction cover is arranged below the welding torch nozzle. The correction cover adopts a semi-circular ring structure. The center line of the correction cover and the center line of the welding torch nozzle are located on the same axis. A limiting block is arranged on one side of the correction cover. The limiting block and the correction cover are of an integral structure. A limiting hole is opened on the limiting block. The limiting hole is sleeved on the support rod, and the limiting block is installed on the support rod.
[0010] Preferably, a first threaded hole is opened on one side of the limiting block away from the correction cover. The first threaded hole is communicated with the limiting hole. A second bolt is threadedly sleeved on the first threaded hole. The limiting block is clamped on the support rod through the second bolt.
[0011] Preferably, a second threaded hole is opened on one side of the fixed block away from the fixed sleeve. The second threaded hole is opened along the side wall of the fixed block to the inner wall of the fixed sleeve. A third bolt is threadedly sleeved on the second threaded hole. The fixed block is clamped on the welding torch body through the third bolt.
[0012] Preferably, a buffer pad is arranged at one end of the welding torch body away from the welding torch nozzle. The buffer pad adopts a plate-shaped structure made of an elastic material. One side of the buffer pad is installed on the welding torch body. A plurality of anti-slip grains are arranged on the other side of the buffer pad. The anti-slip grains are uniformly arranged on the other side of the buffer pad. The anti-slip grains and the buffer pad are of an integral structure.
[0013] The beneficial effects of the utility model are as follows: First, the support rod arranged by the utility model abuts against the front engine hood of the automobile. Then, one end of the power supply of the welding torch body is connected to the second chuck, and the front engine hood of the automobile is connected to the conductive circuit of the power supply of the welding torch body through the second chuck and the support rod. At the same time, the welding torch nozzle is connected to the other end of the power supply of the welding torch body, and the conductive joint is clamped by the welding torch nozzle, so that the conductive joint is connected to the conductive circuit of the power supply of the welding torch body through the welding torch nozzle. The conductive joint abuts against the front engine hood of the automobile, so that an electric arc is ignited between the front engine hood of the automobile and the conductive joint to complete the welding operation of the conductive joint. Moreover, by virtue of the elasticity of the first spring, the second chuck continuously presses against the side wall of the support rod, thereby ensuring the conductive effect of the support rod and clamping the support rod on the fixed block, and simplifying the installation difficulty of the support rod.
[0014] Secondly, with the second spring and the fixing block provided by the present utility model, it is convenient to quickly press the support rod against the front engine hood of the vehicle, thus facilitating the arc welding operation of the conductive joint. Moreover, with two support rods adopted by the present utility model, the current flowing through the front engine hood of the vehicle is shared. And if one of the support rods fails to disconnect from one end of the power supply of the welding torch body, the front engine hood of the vehicle can be connected to the power supply of the welding torch body through the other support rod to avoid affecting the welding operation.
[0015] Thirdly, with the limit block provided by the present utility model, the correction cover is installed on the support rod, and the conductive joint clamped by the welding torch nozzle is corrected by using the correction cover to prevent the conductive joint clamped by the welding torch nozzle from being eccentric. And by opening a first threaded hole in the limit block and threadedly sleeving a second bolt on the first threaded hole, the limit block is clamped on the support rod through the second bolt, thus facilitating the loading and unloading of the limit block or adjusting the installation position of the limit block on the support rod to facilitate the correction of the conductive joint clamped by the welding torch nozzle by using the correction cover. Moreover, by opening a second threaded hole in the fixing block and threadedly sleeving a third bolt on the second threaded hole, it is convenient to load and unload the fixing block or adjust the installation position of the fixing block on the welding torch body.
[0016] In addition, with the buffer pad provided by the present utility model, the comfort of pressing the welding torch body is improved, and by adding anti-slip particles on the buffer pad, the sliding phenomenon of pressing the buffer pad is prevented to improve the stability of pressing the buffer pad. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional schematic diagram of the present utility model.
[0018] Figure 2 is Figure 1 an enlarged schematic diagram of part A in
[0019] Figure 3 is an exploded assembly view of the fixing sleeve and the support rod in the present utility model.
[0020] Figure 4 is Figure 3 an enlarged schematic diagram of part B in
[0021] Figure 5 is an exploded assembly view of the support rod and the correction cover in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] As Figures 1 to 5As shown in the figure, a welding device for a conductive joint on the front hood of an automobile includes a welding torch body 1 and a welding torch nozzle 2 provided at the end of the welding torch body 1. A fixing sleeve 3 is sleeved on the welding torch body 1. The fixing sleeve 3 is installed on the welding torch body 1. A fixing block 4 is provided on one side of the fixing sleeve 3. The fixing block 4 and the fixing sleeve 3 are of an integral structure. A sleeve hole 5 is vertically opened on the fixing block 4. A support rod 6 is sleeved in the sleeve hole 5. On the side of the fixing block 4 close to the welding torch nozzle 2, a first chuck 7 and a second chuck 8 with a semi-circular structure are respectively provided. The first chuck 7 and the second chuck 8 are respectively movably sleeved on both sides of the support rod 6. The top end of the first chuck 7 is installed on the fixing block 4. Wing plates 9 are respectively provided on both sides of the first chuck 7 and both sides of the second chuck 8. The wing plates 9 are installed on the first chuck 7 or the second chuck 8. A through hole 10 is opened on the wing plate 9. A first bolt 11 is movably sleeved in the through hole 10. The aperture of the through hole 10 matches the diameter of the first bolt 11. A first spring 12 and a nut 13 are respectively sleeved on both sides of the first bolt 11. The nut 13 is threadedly sleeved on the first bolt 11. One side of the first spring 12 contacts the nut of the first bolt 11. The wing plates 9 installed on the first chuck 7 and the wing plates 9 installed on the second chuck 8 are clamped on the other side of the first spring 12 through the nut 13. Thus, the second chuck 8 is pressed against the side wall of the support rod 6, so that the second chuck 8 and the support rod 6 are in close contact. By connecting one end of the power supply of the welding torch body 1 to the second chuck 8, one end of the power supply is connected to the support rod 6 through the second chuck 8. Then, the support rod 6 is pressed on the front hood of the automobile, so that a closed circuit is formed among the power supply, the conductive joint clamped by the welding torch nozzle 2, the front hood of the automobile, the support rod 6 and the second chuck 8, facilitating the use of the welding torch body 1 to complete arc welding operation on the conductive joint and the front hood of the automobile, and fixing the conductive joint to the front hood of the automobile. With the elasticity of the first spring 12, the second chuck 8 is continuously pressed against the side wall of the support rod 6, thus ensuring the conductive effect of the support rod 6.
[0023] In this embodiment, a second spring 14 is sleeved on the top of the support rod 6. A support block 15 is provided above the second spring 14. Both sides of the second spring 14 are respectively installed on the fixing block 4 and the support block 15. The bottom end of the support rod 6 is not higher than the height of the bottom end of the conductive joint clamped by the welding torch nozzle 2. By pressing the welding torch body 1, the conductive joint abuts against the front hood of the automobile. Under the elastic force of the second spring 14, the support rod 6 quickly abuts against the front hood of the automobile, facilitating the arc welding operation on the conductive joint.
[0024] Specifically, the number of the sleeve holes 5 is two, and the two sleeve holes 5 are respectively opened on both sides of the fixed block 4. The number of the support rods 6 is two, and the two support rods 6 are respectively sleeved in the two sleeve holes 5. The first chucks 7 and the second chucks 8 are respectively sleeved on the two support rods 6. The second chucks 8 sleeved on the two support rods 6 are both connected to one end of the power supply of the welding torch body 1, so as to share the current on the front engine hood of the vehicle. And if one of the support rods 6 fails to be disconnected from one end of the power supply of the welding torch body 1, the front engine hood of the vehicle can be connected to the power supply of the welding torch body 1 through the other support rod 6 to avoid affecting the welding operation.
[0025] Please refer to again Figure 1 and 5 , a correction cover 16 is arranged below the welding torch nozzle 2. The correction cover 16 adopts a semi-circular ring structure. The center line of the correction cover 16 and the center line of the welding torch nozzle 2 are on the same axis. A limiting block 17 is arranged on one side of the correction cover 16. The limiting block 17 and the correction cover 16 are of an integral structure. A limiting hole 18 is opened on the limiting block 17. The limiting hole 18 is sleeved on the support rod 6. The limiting block 17 is installed on the support rod 6. The correction cover 16 is used for correcting the conductive joint clamped by the welding torch nozzle 2.
[0026] Specifically, a first threaded hole 19 is opened on the side of the limiting block 17 away from the correction cover 16. The first threaded hole 19 is communicated with the limiting hole 18. A second bolt 20 is threadedly sleeved on the first threaded hole 19. The limiting block 17 is clamped on the support rod 6 through the second bolt 20, so as to facilitate the loading and unloading of the limiting block 17 or the adjustment of the installation position of the limiting block 17 on the support rod 6.
[0027] In this embodiment, a second threaded hole 21 is opened on the side of the fixed block 4 away from the fixed sleeve 3. The second threaded hole 21 is opened along the side wall of the fixed block 4 to the inner wall of the fixed sleeve 3. A third bolt 22 is threadedly sleeved on the second threaded hole 21. The fixed block 4 is clamped on the welding torch body 1 through the third bolt 22, so as to facilitate the loading and unloading of the fixed block 4 or the adjustment of the installation position of the fixed block 4 on the welding torch body 1.
[0028] Please refer to again Figure 1 , a buffer pad 23 is arranged at one end of the welding torch body 1 away from the welding torch nozzle 2. The buffer pad 23 adopts a plate-like structure made of an elastic material. One side of the buffer pad 23 is mounted on the welding torch body 1, so as to improve the comfort of pressing the welding torch body 1. A plurality of anti-slip grains 24 are arranged on the other side of the buffer pad 23. The anti-slip grains 24 are uniformly arranged on the other side of the buffer pad 23. The anti-slip grains 24 and the buffer pad 23 are of an integral structure, so as to improve the anti-slip property of the buffer pad 23 and improve the stability of pressing the buffer pad 23.
[0029] The assembly method of this product is as follows: As Figures 1 to 5As shown in the figure, first, the fixed sleeve 3 equipped with the support rod 6 is sleeved on the welding torch body 1. Adjust the sleeved position of the fixed sleeve 3 on the welding torch body 1 to control the height of the support rod 6 below the bottom end of the welding torch nozzle 2 that clamps the conductive joint. Then, screw the third bolt 22 onto the second threaded hole 21 to clamp the fixed block 4 and the fixed sleeve 3 on the welding torch body 1. Next, attach the second chuck 8 to the support rod 6. Pass the first bolt 11 through the wing plate 9 installed on the first chuck 7 and the wing plate 9 installed on the second chuck 8, and then screw the nut 13 onto the first bolt 11 to clamp the first chuck 7 and the second chuck 8 between the first spring 12 and the nut 13. Connect the power supply of the second chuck 8 and the welding torch body 1 with a wire, so as to facilitate the support rod 6 to be connected to the circuit where the power supply of the welding torch body 1 is located. Then, sleeve the limiting hole 18 of the limiting block 17 on the bottom of the support rod 6, so that the correction cover 16 is located below the welding torch nozzle 2. Screw the second bolt 20 onto the first threaded hole 19 to clamp the limiting block 17 and the correction cover 16 on the support rod 6 to facilitate the correction of the conductive joint clamped by the welding torch nozzle 2. Finally, bond the side of the buffer pad 23 away from the anti-slip grains 24 to the end of the welding torch body 1 away from the welding torch nozzle 2 to complete the assembly of this product.
[0030] In the embodiment, the support rod 6 is set to abut against the front engine hood of the vehicle. Then, one end of the power supply of the welding torch body 1 is connected to the second chuck 8, and the front engine hood of the vehicle is connected to the conductive circuit of the power supply of the welding torch body 1 through the second chuck 8 and the support rod 6. At the same time, the welding torch nozzle 2 is connected to the other end of the power supply of the welding torch body 1, and the conductive joint is clamped by the welding torch nozzle 2, so that the conductive joint is connected to the conductive circuit of the power supply of the welding torch body 1 through the welding torch nozzle 2. By abutting the conductive joint against the front engine hood of the vehicle, an electric arc is ignited between the front engine hood of the vehicle and the conductive joint to complete the welding operation of the conductive joint. Moreover, in this embodiment, by virtue of the elasticity of the first spring 12, the second chuck 8 is continuously pressed against the side wall of the support rod 6, thereby ensuring the conductive effect of the support rod 6 and clamping the support rod 6 on the fixed block 4, simplifying the installation difficulty of the support rod 6.
[0031] The above-described embodiments are only the preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included in the scope of the patent application of the present invention.
Claims
1. A welding device for a conductive joint on a front hood of an automobile, comprising a welding gun body (1) and a welding gun nozzle (2) arranged at the end of the welding gun body (1), characterized in that: The welding gun body (1) is provided with a fixing sleeve (3), which is mounted on the welding gun body (1). A fixing block (4) is arranged on one side of the fixing sleeve (3), the fixing block (4) and the fixing sleeve (3) are an integral structure, a sleeve hole (5) is vertically opened on the fixing block (4), a support rod (6) is sleeved in the sleeve hole (5), a first chuck (7) and a second chuck (8) of a semicircular structure are respectively arranged on one side of the fixing block (4) close to the welding gun nozzle (2), the first chuck (7) and the second chuck (8) are respectively movably sleeved on both sides of the support rod (6), the top end of the first chuck (7) is mounted on the fixing block (4), and both sides of the first chuck (7) and the two sides of the second chuck (8) are respectively provided with A wing plate (9) is provided, the wing plate (9) being mounted on the first chuck (7) or the second chuck (8), the wing plate (9) being provided with a through hole (10), a first bolt (11) being movably mounted in the through hole (10), the hole diameter of the through hole (10) being consistent with the diameter of the first bolt (11), a first spring (12) and a nut (13) being mounted on both sides of the first bolt (11), the nut (13) being threadably mounted on the first bolt (11), one side of the first spring (12) being in contact with the nut of the first bolt (11), the wing plate (9) mounted on the first chuck (7) and the wing plate (9) mounted on the second chuck (8) being clamped on the other side of the first spring (12) through the nut (13).
2. The welding device for the conductive joint on the front hood of an automobile according to claim 1, characterized in that: A second spring (14) is sleeved on the top of the support rod (6), a support block (15) is arranged above the second spring (14), and two sides of the second spring (14) are respectively mounted on the fixed block (4) and the support block (15).
3. The welding device for the conductive joint on the front hood of an automobile according to claim 1, characterized in that: The number of the sleeve holes (5) is two, and the two sleeve holes (5) are respectively opened on both sides of the fixed block (4). The number of the support rods (6) is two, and the two support rods (6) are respectively sleeved in the two sleeve holes (5). The two support rods (6) are respectively sleeved on the first chuck (7) and the second chuck (8).
4. The welding device for the conductive joint on the front hood of an automobile according to claim 1, characterized in that: A correction cover (16) is arranged below the welding gun nozzle (2). The correction cover (16) adopts a semicircular ring structure. The center line of the correction cover (16) and the center line of the welding gun nozzle (2) are located on the same axis. A limit block (17) is arranged on one side of the correction cover (16). The limit block (17) and the correction cover (16) are an integrated structure. A limit hole (18) is provided on the limit block (17). The limit hole (18) is sleeved on the support rod (6). The limit block (17) is installed on the support rod (6).
5. The welding device for the conductive joint on the front hood of an automobile according to claim 4, characterized in that: A first threaded hole (19) is formed on a side of the limit block (17) away from the correction cover (16); the first threaded hole (19) is connected to the limit hole (18); a second bolt (20) is threadedly mounted on the first threaded hole (19); and the limit block (17) is clamped on the support rod (6) by the second bolt (20).
6. The welding device for the conductive joint on the front hood of an automobile according to claim 1, characterized in that: A second threaded hole (21) is formed on a side of the fixing block (4) away from the fixing sleeve (3); the second threaded hole (21) is formed along the side wall of the fixing block (4) and extends to the inner wall of the fixing sleeve (3); a third bolt (22) is threadedly mounted on the second threaded hole (21); and the fixing block (4) is clamped on the welding gun body (1) by the third bolt (22).
7. The welding device for the conductive joint on the front hood of an automobile according to claim 1, characterized in that: A buffer pad (23) is provided at one end of the welding gun body (1) away from the welding gun nozzle (2); the buffer pad (23) is a plate-shaped structure made of elastic material; one side of the buffer pad (23) is mounted on the welding gun body (1); and a plurality of anti-skid particles (24) are provided on the other side of the buffer pad (23); the anti-skid particles (24) are evenly arranged on the other side of the buffer pad (23); and the anti-skid particles (24) and the buffer pad (23) are an integral structure.