Continuous welding auxiliary device for stud on long-strip-shaped sheet metal stamping part

Abstract

The utility model discloses an auxiliary device for continuously welding studs on a long-strip-shaped metal plate stamping part, which comprises positioning components corresponding to each welded stud on the stamping part and used for positioning a welding gun, and the positioning components drive the welding gun to move between welding point positions of adjacent studs. And a resetting component for driving the welding gun to be separated from the welding point of the stud is also arranged on the positioning component. According to the welding auxiliary device, the welding gun is supported through the positioning component, and the welding gun is driven to move between welding point positions of different studs through the positioning component, so that the problem that the physical burden is too heavy due to the fact that the welding gun needs to be lifted, moved and lowered at present is effectively solved, and the welding operation efficiency of the studs on the threshold stamping part is improved. And the reset component drives the welding gun to be separated from the surface of the stamping part after a single stud is welded, so that the welding gun can be smoothly moved to the welding position of the next stud, the operation convenience is improved, and the situation that the surface of the stamping part is scratched due to horizontal movement of the welding gun is avoided.

Description

Technical Field

[0001] This application relates to the field of continuous welding technology for studs on sheet metal stamping parts, and in particular to an auxiliary device for continuous welding of studs on long strip-shaped sheet metal stamping parts. Background Technology

[0002] Automotive door sill stamping parts are widely used in various types of vehicles, including passenger cars and commercial vehicles, and are an indispensable part of automobiles. Automotive door sill stamping parts are one of the key components in automobile manufacturing, and are sheet metal parts processed through stamping, bending, and forming processes on metal sheets. As part of the car body, the door sill stamping parts provide necessary structural support, ensuring the strength and stability of the body. At the same time, because the door sill is located low and is easily affected by external impacts, the door sill stamping parts also provide a certain degree of protection, mitigating damage to the body from external impacts; and they typically work in conjunction with components such as door seals to ensure the door's sealing and sound insulation effects.

[0003] The structure of stamped sheet metal door sill parts for automobiles is relatively complex, typically comprising multiple parts and features, such as: the main body: constituting the main shape and structure of the door sill, usually with a large area and thickness; reinforcing ribs, connecting holes, edge folding, rolling, and other treatments; and also including the connection and assembly of accessories on the stamped sheet metal part, such as welding studs. (See instruction manual attached.) Figure 1 As shown, the connection is achieved through studs during the final assembly.

[0004] Currently, due to the large surface area of ​​door sill sheet metal parts, multiple studs are usually welded at intervals on their surface, such as... Figure 1-2 The structure shown is designed to enable the positioning and welding of multiple studs using a welding torch, as follows: Figure 3 As shown, after the stamped part is clamped, multiple rotatable support rods are spaced apart on one side, and positioning rings for embedding welding guns are provided at the ends of the support rods. During operation, the support rods are rotated by a cylinder, causing the positioning rings to press against the welding positions of the studs on the stamped part. Then, the welding gun is inserted into each positioning ring to achieve the positioning welding of the studs. Since multiple studs need to be welded on each sill stamped part, the operation method during the welding process is as follows: Figure 4 As shown, after welding a single stud, the welding torch needs to be lifted and disengaged from the current positioning ring. Then, it is moved to the top of the next positioning ring in the direction indicated by the arrow, and inserted downwards into that ring for stud welding. The welding torch is then lifted again and transferred to the next positioning ring. Because the welding torch is connected to cables, air hoses, and other accessories at its tail end, frequent lifting, moving, and lowering of the welding torch is necessary in assembly-line automotive manufacturing. This results in excessive physical exertion during stud welding, thus affecting the efficiency of stud welding operations on door sills. Summary of the Invention

[0005] To address the aforementioned problems, this application aims to provide an auxiliary device for continuous welding of studs on long strip sheet metal stampings. The device supports the welding gun through a positioning component and moves between different welding points of the studs, thereby effectively solving the problem of excessive physical burden caused by the current requirement to lift, move, and lower the welding gun, and thus improving the welding efficiency of studs on sill stampings.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A continuous welding auxiliary device for studs on a long strip sheet metal stamping part, characterized in that: the welding auxiliary device includes a positioning component corresponding to each stud welded on the stamping part and positioning the welding gun, and the positioning component drives the welding gun to move between the welding points of adjacent studs, and a reset component is also provided on the positioning component to drive the welding gun to disengage from the welding point of the stud.

[0007] Preferably, the positioning component includes a slide rail parallel to one side of the stamping part, a support rod vertically and slidably disposed on the slide rail located on the upper side of the stamping part, and a positioning ring disposed at the end of the support rod through which the welding gun passes and vertically corresponds to the welding point of the stud.

[0008] Preferably, spring pins are spaced on the slide rail at intervals corresponding to the welding points of each stud on the stamped part, and a positioning blind hole for embedding the spring pin is provided at the bottom of the support rod.

[0009] Preferably, the reset component is a reset spring disposed on the top side of the positioning ring and pressed against the welding gun.

[0010] The beneficial effects of this application are: the welding auxiliary device supports the welding torch through the positioning component, and drives the welding torch to move between different welding points of the studs through the positioning component, thereby effectively solving the problem of excessive physical burden caused by the current need to lift, move and lower the welding torch, and thus improving the welding efficiency of studs on the sill stamping parts.

[0011] By using a reset component to disengage the welding torch from the surface of the stamped part after the welding of a single stud, the welding torch can be easily moved to the next stud welding location, improving the ease of operation and avoiding scratches on the surface of the stamped part caused by horizontal movement of the welding torch. Attached Figure Description

[0012] Figure 1 A front view of welding multiple studs onto a stamped part.

[0013] Figure 2 for Figure 1 Top view.

[0014] Figure 3This diagram illustrates the support rod and locating ring structure currently used for stud welding on stamped parts.

[0015] Figure 4 The diagram illustrates the current process of lifting, moving, and lowering the welding torch when welding studs.

[0016] Figure 5 This is a structural diagram of the positioning component in this application.

[0017] Figure 6 This illustration shows the welding torch being supported and slid by a positioning ring, as per this application.

[0018] Figure 7 This is a diagram illustrating the positioning structure of the support rod and slide rail using spring pins in this application.

[0019] Figure 8 This diagram illustrates the process of the support rod moving and engaging between different spring pins in this application.

[0020] Figure 9 This is a diagram illustrating the structure of a reset spring on the positioning ring in this application.

[0021] In the diagram: 2b - groove; 6 - stamped part; 7 - stud; 8 - welding torch. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See attached document Figures 1-9 The diagram shows an auxiliary device for continuous welding of studs on a long strip-shaped sheet metal stamping part, such as... Figure 5 As shown, the welding auxiliary device includes a positioning component that corresponds to each stud 7 welded on the stamping part 6 and positions the welding torch 8. The positioning component can correspond to the welding position of each stud 7 on the stamping part 6. In this state, the welding torch 8 is connected to the positioning component, so that multiple studs 7 can be accurately welded on the stamping part 6 by the welding torch 8.

[0024] To address the excessive physical strain caused by the frequent lifting, moving, and lowering of the welding torch, such as... Figure 6 As shown, the positioning component drives the welding torch to move between the welding points of adjacent studs. That is, when welding multiple studs on a single sill stamping part, the welding torch is always connected to the positioning component during the welding of adjacent studs. In other words, the positioning component supports the welding torch and drives the welding torch to move between the welding points of different studs. This effectively solves the problem of excessive physical burden caused by the current need to lift, move, and lower the welding torch, and thus improves the welding efficiency of studs on sill stamping parts.

[0025] Because the welding torch needs to contact the surface of the stamped part when welding studs, and needs to be moved to the next stud welding point after welding a single stud, in order to avoid contact resistance between the welding torch and the surface of the stamped part during the movement of the welding torch, and to avoid scratches on the surface of the stamped part, such as... Figure 9 As shown, the positioning component also includes a reset component that drives the welding torch to detach from the welding point of the stud. This reset component drives the welding torch to detach from the surface of the stamped part after the welding of a single stud is completed, thus allowing the welding torch to be easily moved to the next stud welding point, improving operational convenience.

[0026] Specifically, such as Figure 5-6 As shown, the positioning component includes a slide rail 1 parallel to one side of the stamped part. A support rod 2 is vertically and slidably mounted on the slide rail 1, located on the upper side of the stamped part. A positioning ring 3, through which the welding torch passes, is also provided at the end of the support rod 2, vertically corresponding to the welding point of the stud. The length of the slide rail 1 is greater than the length of the stamped part, allowing the support rod 2 and positioning ring 3 to slide to one end of the slide rail 1 during stamped part assembly, thus avoiding obstruction to the assembly of the stamped part. During stud welding, the welding torch head is inserted into the positioning ring 3, driving the support rod 2 to slide on the slide rail 1 until the welding torch slides to correspond to the welding point of the stud. Then, the welding torch is activated to weld the stud, held in the welding torch head, onto the stamped part. The support rod 2 is then slid further... Figure 6 As shown by the middle arrow, the welding torch slides to the welding point of the next stud for welding. This operation allows for continuous welding of multiple studs on the stamped part under the support of the support rod, solving the physical burden of frequently lifting, moving and lowering the welding torch manually, and thus improving the efficiency of stud welding.

[0027] During the process of sliding support rod 2 described above, in order to achieve vertical alignment between the welding torch and the welding point of the stud, as follows: Figure 7-8 As shown, spring pins 4 are spaced on the slide rail 1 at intervals corresponding to the welding points of each stud on the stamped part. A positioning blind hole 2a is provided at the bottom of the support rod 2 to embed the spring pins 4. Slide grooves 2b with arc-shaped ports are also provided on both sides of the positioning blind hole 2a. The operation process is as follows: Figure 8As shown, the drive support rod 2 slides on the slide rail 1. When the support rod 2 contacts the spring pin 4, it squeezes the spring pin 4 through the arc-shaped port of the slide groove, causing the spring pin 4 to be pressed down and embedded in the slide groove. The support rod 2 continues to slide, allowing the spring pin 4 to elastically embed into the positioning blind hole 2a. In this state, the support rod 2 is slidably positioned on the slide rail 1, and the positioning ring 3 drives the welding torch to vertically align with the stud welding point. Thus, the welding torch can accurately perform stud welding operations on the surface of the stamped part. After a single stud is welded, the support rod 2 continues to move forward, and the spring pin 4 is pressed down through the slide groove, causing the spring pin 4 to disengage from the support rod in the slide groove. After the support rod 2 contacts the next spring pin 4, the spring pin 4 at that position is embedded in the positioning blind hole 2a of the support rod 2 in the same way to achieve the positioning of the current stud welding point. In this way, the positioning welding operations of multiple studs can be accurately completed on the stamped part.

[0028] To ensure that the welding torch detaches from the surface of the stamped part after the welding of a single stud is completed, such as... Figure 9 As shown, the reset component is a reset spring 5 that is positioned on the top side of the positioning ring 3 and presses against the welding torch. After the welding positioning of a single stud is achieved by the spring pin 4, the operator presses down the welding torch and squeezes the reset spring 5, causing the stud held by the welding torch head to contact the surface of the stamped part and achieve welding of the stud. After the stud is welded, the reset spring 5 can drive the welding torch to disengage from the surface of the stamped part, achieving the reset of the welding torch and moving the welding torch to the next welding point. Since the positioning ring 3 is also disengaged from the surface of the stamped part, when the welding torch is moved to the next welding point, a new stud can be inserted and clamped in the welding torch head from the gap between the bottom side of the positioning ring 3 and the surface of the stamped part, and the welding operation of the stud at the current position can be performed, realizing continuous welding operation of the stud without disengaging the welding torch from the positioning ring 3.

[0029] The principle of this application is as follows: When welding multiple studs on a long strip-shaped sheet metal stamping part such as an automotive door sill, the support rod 2 is first slid to one end of the slide rail 1. Then, the stamping part is clamped. After clamping and tightening, the welding torch is embedded in the positioning ring 3, and the positioning ring 3 and the support rod 2 are driven to slide on the slide rail 1. When the support rod 2 slides to the spring pin 4, the spring pin 4 is squeezed, and the spring pin 4 is embedded in the positioning blind hole 2a at the bottom of the support rod 2, thereby positioning the current welding stud. Then, the welding torch is pressed down and the return spring is squeezed, so that the welding torch contacts the surface of the stamping part, thereby completing the welding operation of the current stud.

[0030] After the current stud welding is completed, the return spring 5 drives the welding gun to detach from the surface of the stamped part, and continues to drive the support rod 2 to slide away from the positioning of the spring pin 4 and to the next spring pin 4 for positioning. During the sliding welding gun process, the new stud is inserted from the gap between the positioning ring 3 and the stamped part. After the spring pin 4 positions the support rod 2, the welding operation of the stud at that point can be performed. In this way, multiple studs can be quickly welded, solving the physical burden of handheld welding guns.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this application. Various changes and modifications may be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.

Claims

1. A continuous welding auxiliary device for studs on long strip-shaped sheet metal stamping parts, characterized in that: The welding auxiliary device includes a positioning member corresponding to each stud welded on the stamped part and positioning the welding torch, and the positioning member drives the welding torch to move between welding points of adjacent studs, and the positioning member is also provided with a resetting member that drives the welding torch to disengage from the welding point of the stud.

2. The welding auxiliary device according to claim 1, characterized in that: The positioning component includes a slide rail (1) parallel to one side of the stamping part, on which a support rod (2) is vertically and slidably mounted on the slide rail (1) and located on the upper side of the stamping part. At the end of the support rod (2), a positioning ring (3) is also provided, through which the welding gun passes and vertically corresponding to the welding point of the stud.

3. The welding auxiliary device according to claim 2, characterized in that: Spring pins (4) are spaced on the slide rail (1) at intervals corresponding to the welding points of each stud on the stamping part, and a positioning blind hole (2a) for embedding the spring pins (4) is provided at the bottom of the support rod (2).

4. The welding auxiliary device according to claim 3, characterized in that: The reset component is a reset spring (5) that is installed on the top side of the positioning ring (3) and pressed against the welding gun.

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