A welding gun mechanical tracking device and a rocket tunnel pipe spiral welding device

Abstract

A kind of welding torch mechanical tracking device and rocket tunnel pipe spiral welding device, including: base, long connecting rod, welding torch slot, short connecting rod, gyro wheel, connecting nut, connecting block, sliding block, force spring, slide rail;In the welding process, gyro wheel is closely combined with the side of the edge of strip, gyro wheel automatically moves left and right with strip, and the moving amount is transmitted to welding torch by sliding block, to realize the tracking of weld.The device compared with prior art welding torch mechanical tracking device, the device is put into low, tracking state is stable, manufacture and maintenance are simple, production efficiency is high, can effectively improve weld quality, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of spacecraft processing and manufacturing technology, and in particular to a key component of a carrier rocket tunnel tube processing and manufacturing equipment: a welding torch mechanical tracking device and a rocket tunnel tube spiral welding device. Background Technology

[0002] The stainless steel rocket tunnel tube spiral welding equipment is a new type of rocket tunnel tube manufacturing equipment, and the welding torch tracking device is a key component of this equipment. The welding torch tracking device is fixed on the forming device, and its function is to track the edge seam of the material coming out of the forming device in real time and accurately, so that the welding torch can weld the edge seam.

[0003] However, there are some problems and challenges in the spiral welding tracking of large-diameter, thin-walled stainless steel pipes. First, the length accuracy of the strip is 0.5 mm / m. Under this level of precision, the weld at the welding torch nozzle will oscillate left and right during the welding process. Second, during welding, the pipe is affected by the coaxiality of devices such as pipe supports and forming devices, causing the weld at the welding torch nozzle to also deviate left and right. In civilian applications where weld quality requirements are not high, fixed welding torches are typically used, or the weld is tracked manually during the welding process. Fixed welding torches cannot track the weld, resulting in unstable weld quality. Manual welding requires a person to monitor the weld for extended periods, introducing significant uncertainty and further contributing to unstable weld quality. Industrial applications often employ tracking systems based on laser or vision sensors and algorithms. However, such systems often require advance teaching for tracking small-gap welds, which is not feasible for tunnel pipe welding, significantly reducing the tracking effectiveness. Furthermore, such equipment can cost hundreds of thousands of yuan, making it uneconomical. Summary of the Invention

[0004] This disclosure provides a mechanical tracking device for welding torches used in spiral welding of stainless steel rocket tunnel pipes. Through mechanical structure design, it enables real-time tracking of the material-laden seam of the stainless steel pipe, thus providing conditions for welding.

[0005] The welding torch mechanical tracking device disclosed herein mainly includes: a roller (1), a short connecting rod (2), a connecting nut (3), a storage spring (4), a base (5), a long connecting rod (6), a welding torch slot (7), a connecting block (8), a slide rail (9), and a slider (10); wherein:

[0006] The welding torch slot (7) is used to fix the welding torch;

[0007] A long connecting rod (6) is fixed above the base (5) and fixed to the slider (10) below;

[0008] One end of the long connecting rod (6) is connected to the welding gun slot, and the other end is connected to the short connecting rod (2) through the connecting nut (3).

[0009] The short connecting rod (2) is fitted with a roller (1), which is in close contact with one side of the strip during the welding process and rolls as the strip moves forward;

[0010] The connecting block (8) is installed and fixed on the tunnel tube forming device;

[0011] The connecting block (8) adopts a U-shaped structure with a horizontal bottom, and the slider (10) is located between its two side walls;

[0012] The energy storage spring (4) is located between the side wall of the connecting block (8) and the slider, providing power for the slider to slide between the two side walls of the connecting block (8);

[0013] The slide rail (9) is disposed on the connecting block (8) and cooperates with the slider (10) to provide guidance and support for the sliding of the slider (10).

[0014] Furthermore, the shape of the welding torch slot (7) matches the specific shape and posture of the welding torch.

[0015] Furthermore, the welding torch slot (7) is either U-shaped or circular.

[0016] Furthermore, the connecting nut (3) is fixed to one end of the long connecting rod by an internal thread, and several holes are opened around the nut. One end of the short connecting rod is inserted into the hole and fixed. The long connecting rod and the short connecting rod are perpendicular to each other.

[0017] Furthermore, the slide rail (9) passes through the slider and is fixed at both ends to the side wall of the connecting block (8); the energy storage spring (4) is sleeved on the slide rail (9).

[0018] Furthermore, the slide rail (9) adopts two parallel cylindrical slide rails or a single dovetail groove guide rail.

[0019] Furthermore, the bottom of the connecting block (8) is fixed to the tunnel tube forming device by means of a gasket or support structure.

[0020] Furthermore, the bottom of the connecting block (8) is fixed to the tunnel tube forming device by screw connection.

[0021] A rocket tunnel tube spiral welding device using the above-mentioned tracking device includes: a welding torch, a tunnel tube forming device, and the above-mentioned welding torch mechanical tracking device, wherein the tracking device is fixedly connected to the forming device during welding.

[0022] Furthermore, the welding torch includes a laser welding torch or an argon arc welding torch.

[0023] In the aforementioned tracking device, the roller is in close contact with one side of the strip material. The roller moves automatically left and right along with the strip material, and this movement is transmitted to the welding torch via a slider, thus achieving weld tracking. Compared with the prior art, the beneficial effects of this disclosure are: compared with existing welding torch mechanical tracking devices, the equipment investment is low, the tracking state is stable, manufacturing and maintenance are simple, and the production efficiency is high; it can effectively improve weld quality and increase production efficiency. Attached Figure Description

[0024] The above and other objects, features and advantages of this disclosure will become more apparent from the more detailed description of exemplary embodiments of this disclosure taken in conjunction with the accompanying drawings, in which the same reference numerals generally represent the same components.

[0025] Figure 1 This is a schematic diagram of an exemplary structure of a welding torch mechanical tracking device according to the present disclosure;

[0026] The components labeled in the figure are: roller (1), short connecting rod (2), connecting nut (3), energy storage spring (4), base (5), long connecting rod (6), welding torch slot (7), connecting block (8), slide rail (9) and slider (10).

[0027] Figure 2 A schematic diagram of an exemplary welding torch mechanical tracking device mounted and fixed on a tunnel tube forming machine. Detailed Implementation

[0028] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0029] This disclosure provides a welding torch mechanical tracking device and a rocket tunnel tube spiral welding device. A mechanical structure is designed to track the weld in real time, ultimately meeting the welding conditions and providing conditions for further welding.

[0030] According to an exemplary welding torch mechanical tracking device of this disclosure, as shown in the attached... Figure 1 As shown, it mainly consists of a roller (1), a short connecting rod (2), a connecting nut (3), a storage spring (4), a base (5), a long connecting rod (6), a welding torch slot (7), a connecting block (8), a slide rail (9), and a slider (10).

[0031] The roller (1) is in close contact with one side of the conveyor belt and rolls as the conveyor belt moves forward.

[0032] The short connecting rod (2) has a certain rigidity and is used to connect the roller (1) and the long connecting rod (6). The connection between the long connecting rod (6) and the short connecting rod (2) is achieved by screwing in the connecting nut (3).

[0033] The energy storage spring (4) has two springs, which provide power for the slider to slide to the right.

[0034] The long connecting rod (6) is used to connect the short connecting rod and the welding gun slot, and is also fixedly connected to the base.

[0035] The welding torch slot (7) is used to fix the welding torch, which can be a laser welding torch or an argon arc welding torch.

[0036] The connecting block (8) is used to fix it to the tunnel tube forming device. The tunnel tube forming device has an approximately cylindrical outline. The bottom of the connecting block is fixed to the forming device by a structure such as a gasket, as shown in the attached figure. Figure 2 As shown.

[0037] The slide rail (9) is used to guide and support the slider. Two rails are designed to ensure the sliding stability of the slider.

[0038] The slider (10) can slide freely on the slide rail (9).

[0039] In this embodiment, in order to ensure the stability of the slider sliding, two cylindrical slide rails are used, or a single dovetail groove guide rail can also be used.

[0040] In this embodiment, a U-shaped welding torch slot is used to connect and fix the welding torch. It can also be designed as a circular or other shaped slot according to the specific shape and posture of the welding torch.

[0041] Taking a single welding operation as an example, the welding process using this embodiment is as follows:

[0042] 1. Before welding, complete the assembly of the welding torch mechanical tracking device.

[0043] 2. After assembly, the connecting block is screwed and fixed to the molding device, as shown in the attached figure. Figure 2 As shown, during the process, the roller needs to be in close contact with the edge of the material; on the other hand, the welding gun is installed in the slot and the welding gun posture is adjusted. During the process, the distance between the nozzle and the roller needs to be about one plate width.

[0044] 3. Align the welding torch nozzle with the edge seam, and then perform a test weld. During the test weld, fine-tune the position of the welding torch slot of the mechanical tracking device until the tracking is stable.

[0045] 4. During the welding process, because the roller is in close contact with one side of the strip, the roller will move automatically left and right with the strip. This movement will be transmitted to the welding gun through the slider to achieve the tracking of the weld.

[0046] As can be seen, this embodiment can achieve real-time tracking of the weld, improve weld quality, increase production efficiency, and reduce input costs.

[0047] The above technical solutions are merely exemplary embodiments of this utility model. For those skilled in the art, based on the application structure and principle disclosed in this utility model, it is easy to make various types of improvements or modifications, and not limited to the structure described in the above specific embodiments of this utility model. Therefore, the methods described above are only preferred and not restrictive.

Claims

1. A welding torch mechanical tracking device, characterized in that, include: Roller (1), short connecting rod (2), connecting nut (3), energy storage spring (4), base (5), long connecting rod (6), welding torch slot (7), connecting block (8), slide rail (9), and slider (10); wherein: A long connecting rod (6) is fixed above the base (5) and fixedly connected to the slider (10) below; One end of the long connecting rod (6) is connected to the welding gun slot (7), and the other end is connected to the short connecting rod (2) through the connecting nut (3); the welding gun slot (7) is used to fix the welding gun. The short connecting rod (2) is fitted with a roller (1), which is in close contact with one side of the strip during the welding process and rolls as the strip moves forward; The connecting block (8) is installed and fixed on the tunnel tube forming device; The connecting block (8) adopts a U-shaped structure with a horizontal bottom, and the slider (10) is located between its two side walls; The energy storage spring (4) is located between the side wall of the connecting block (8) and the slider, providing power for the slider to slide between the two side walls of the connecting block (8); The slide rail (9) is disposed on the connecting block (8) and cooperates with the slider (10) to provide guidance and support for the sliding of the slider (10).

2. The apparatus according to claim 1, characterized in that, The shape of the welding torch slot (7) matches the specific shape and posture of the welding torch.

3. The apparatus according to claim 2, characterized in that, The welding torch slot (7) is either concave or circular.

4. The apparatus according to claim 1, characterized in that, The connecting nut (3) is fixed to one end of the long connecting rod by the inner thread. Several holes are opened around the nut. One end of the short connecting rod is inserted into the hole and fixed. The long connecting rod and the short connecting rod are perpendicular to each other.

5. The apparatus according to claim 1, characterized in that, The slide rail (9) passes through the slider and is fixed at both ends to the side wall of the connecting block (8); the energy storage spring (4) is sleeved on the slide rail (9).

6. The apparatus according to claim 5, characterized in that, The slide rail (9) is made of two parallel cylindrical slide rails or a single dovetail groove guide rail.

7. The apparatus according to claim 1, characterized in that, The bottom of the connecting block (8) is fixed to the tunnel tube forming device by means of a gasket or support structure.

8. The apparatus according to claim 7, characterized in that, The bottom of the connecting block (8) is fixed to the tunnel tube forming device by screw connection.

9. A spiral welding device for rocket tunnel tubes, characterized in that, include: A welding torch, a tunnel tube forming device, and a welding torch mechanical tracking device according to any one of claims 1-8, wherein the tracking device is fixedly connected to the tunnel tube forming device during welding.

10. The apparatus according to claim 9, characterized in that, The welding torch includes: a laser welding torch or an argon arc welding torch.

Images