A kind of auxiliary device for pipe submerged arc welding

Abstract

The utility model relates to an auxiliary device for pipe fitting submerged-arc welding, including base, the left and right sides of base are connected with first support seat and second support seat respectively, and first support seat and second support seat are rotatably connected with first pivot and second pivot respectively, and the end of first pivot and second pivot mutually close is equipped with the clamping mechanism for clamping pipe fitting end part, and the side of first support seat is equipped with the motor connected with first pivot, and the top of base is equipped with hydraulic cylinder, and the output of hydraulic cylinder is connected with the receiving block, and the top of receiving block is equipped with the limiting slot for supporting pipe fitting, the utility model through the clamping mechanism of first pivot and second pivot carries out clamping to the both ends of pipe fitting respectively, and the motor drives first pivot to rotate, lets pipe fitting rotate at uniform speed around its axis, under the case of long -term use, can prevent pipe fitting to appear the phenomenon of skidding because of the clamping effect of clamping mechanism, guarantees pipe fitting to rotate at uniform speed, guarantees the welding quality of pipe fitting.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, specifically to an auxiliary device for submerged arc welding of pipe fittings. Background Technology

[0002] In the manufacturing process of pipe fittings, the welding of circumferential welds is a crucial step. Submerged arc welding (SAW) is widely used for circumferential welds of pipe fittings due to its advantages such as stable welding quality, high production efficiency, and good working conditions. During SAW, to ensure the uniformity and consistency of the weld, the pipe fitting to be welded is usually placed on a roller frame, allowing it to rotate at a uniform speed around its axis, before the SAW machine is used to perform the welding operation on the circumferential weld.

[0003] However, after long-term use, the roller surface of the roller frame will wear down, resulting in an uneven roller surface. During the rotation of the pipe fitting, the pipe fitting is prone to slippage, causing the pipe fitting to not rotate at a uniform speed and reducing the welding quality of the pipe fitting. Utility Model Content

[0004] The purpose of this invention is to design an auxiliary device for submerged arc welding of pipe fittings, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An auxiliary device for submerged arc welding of pipe fittings includes a base, with a first support seat and a second support seat connected to the left and right sides of the base, respectively. A first rotating shaft and a second rotating shaft are rotatably connected to the first support seat and the second support seat, respectively. Each of the first rotating shaft and the second rotating shaft has a clamping mechanism for clamping the end of the pipe fitting at one end close to each other. A motor connected to the first rotating shaft is provided on the side of the first support seat. A hydraulic cylinder is provided on the top of the base. A receiving block is connected to the output end of the hydraulic cylinder. A limiting groove for supporting the pipe fitting is provided on the top of the receiving block.

[0006] Furthermore, both the first support and the second support are slidably connected to the base, and the distance between the first support and the second support and the base can be adjusted.

[0007] Furthermore, both the bottom of the first support base and the second support base are fixedly connected with self-locking casters.

[0008] Furthermore, the base has sliding grooves on both the front and rear sides, and two first sliding rods that slide in cooperation with the two sliding grooves are fixedly connected to the first support. A sliding hole is provided between the left and right sides of the base, and a second sliding rod that slides in cooperation with the sliding hole is fixedly connected to the second support.

[0009] Furthermore, the clamping mechanism includes a support rod, and the side of the support rod is provided with two clamping plates that are slidably arranged in a direction that approaches or moves away from each other, and the clamping plates have a V-shaped structure.

[0010] Furthermore, the side of the support rod is provided with an inner groove, and both of the clamps are fixedly connected with sliders that slide in cooperation with the inner groove. A screw is rotatably connected inside the inner groove. One of the sliders is provided with a forward threaded hole that is threaded to the screw, and the other slider is provided with a reverse threaded hole that is threaded to the screw. One end of the screw passes through the support rod and is fixedly connected with a bolt head.

[0011] Furthermore, a rubber layer is fixedly connected to the clamping surface of the clamping plate.

[0012] Furthermore, the limiting groove is a V-shaped groove.

[0013] The beneficial effects of this utility model are as follows: The pipe fitting to be welded is placed in the limiting groove, and then the clamping mechanisms of the first and second rotating shafts clamp the two ends of the pipe fitting respectively. After that, the hydraulic cylinder drives the receiving block to descend, so that the pipe fitting loses contact with the limiting groove. Then, the motor drives the first rotating shaft to rotate, so that the pipe fitting rotates at a constant speed around its axis. Then, the submerged arc welding machine is used to perform welding operations on the circumferential weld. Under long-term use, the clamping action of the clamping mechanism can prevent the pipe fitting from slipping, ensure that the pipe fitting rotates at a constant speed, and ensure the welding quality of the pipe fitting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the clamping mechanism in this utility model; Figure 3 This is a diagram showing the working state of this utility model for clamping pipe fittings.

[0016] The names of the components shown in the diagram are as follows: 1. Base; 2. First support seat; 3. Second support seat; 4. First rotating shaft; 5. Second rotating shaft; 6. Motor; 7. Hydraulic cylinder; 8. Limiting groove; 9. Self-locking caster wheel; 10. Slide groove; 11. First slide rod; 12. Slide hole; 13. Second slide rod; 14. Support rod; 15. Clamping plate; 16. Inner groove; 17. Slider; 18. Screw; 19. Bolt head; 20. Pipe fitting. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] like Figure 1-3 As shown, an auxiliary device for submerged arc welding of pipe fittings includes a base 1. A first support 2 and a second support 3 are respectively connected to the left and right sides of the base 1. A first rotating shaft 4 and a second rotating shaft 5 are rotatably connected to the first support 2 and the second support 3, respectively. Clamping mechanisms are provided at the ends of the first rotating shaft 4 and the second rotating shaft 5 that are close to each other. These clamping mechanisms can clamp the end of the pipe fitting 20 to prevent slippage. A motor 6 is fixed to the side of the first support 2. One end of the first rotating shaft 4 passes through the first support 2 and connects to the motor 6. The output end is fixedly connected and the first rotating shaft 4 is driven to rotate by the motor 6; the top of the base 1 is fixedly equipped with a hydraulic cylinder 7, which is powered by a hydraulic system, which is existing technology and will not be described in detail here; the output end of the hydraulic cylinder 7 is fixedly connected to a receiving block, which is driven to rise or fall by the hydraulic cylinder 7; the top of the receiving block is provided with a limiting groove 8, which is a V-shaped groove. The V-shaped groove can support and limit the pipe fitting 20, prevent the pipe fitting 20 from rotating, and facilitate the clamping mechanism to clamp the end of the pipe fitting 20.

[0019] The base 1 has sliding grooves 10 on both the front and rear sides. The first support 2 is fixedly connected to two first sliding rods 11 that slide in the two sliding grooves 10. The base 1 has sliding holes 12 between the left and right sides. The second support 3 is fixedly connected to a second sliding rod 13 that slides in the sliding holes 12, so that the first support 2 and the second support 3 are slidably connected to the base 1. The distance between the first support 2 and the base 1, as well as the distance between the second support 3 and the base 1, can be adjusted to accommodate clamping pipes 20 of different lengths, increasing practicality. The bottom of the first support 2 and the second support 3 are fixedly connected to self-locking casters 9, improving the ease of movement of the first support 2 and the second support 3.

[0020] The clamping mechanism includes a support rod 14 and two V-shaped clamping plates 15. The side of the support rod 14 is provided with an inner groove 16. Each of the two clamping plates 15 is fixedly connected with a slider 17 that slides in cooperation with the inner groove 16. A screw 18 is rotatably connected inside the inner groove 16. One slider 17 is provided with a forward threaded hole that is threaded to the screw 18, and the other slider 17 is provided with a reverse threaded hole that is threaded to the screw 18. When the screw 18 rotates forward or backward, it can drive the two sliders 17 to slide in the inner groove 16 in a direction that moves closer or further away from each other, thereby allowing the two clamping plates 15 to clamp or loosen the pipe fitting 20. One end of the screw 18 extends out of the support rod 14 and is fixedly connected with a bolt head 19. The screw 18 can be rotated by using a wrench to rotate the bolt head 19. A rubber layer is fixedly connected to the clamping surface of the clamping plate 15 to increase the friction between the clamping plate 15 and the pipe fitting 20.

[0021] Working principle: like Figure 1 and 3 As shown, when using the auxiliary device, the pipe fitting 20 to be welded is first placed in the limiting groove 8 of the receiving block. Then, the first support seat 2 and the second support seat 3 are pushed to move closer to the base 1, so that the two clamping mechanisms can move to a position where the end of the pipe fitting 20 can be clamped. Then, by turning the bolt head 19 with a wrench, the two clamping plates 15 clamp the end of the pipe fitting 20. After the clamping mechanisms of the first rotating shaft 4 and the second rotating shaft 5 clamp the two ends of the pipe fitting 20 respectively, the hydraulic cylinder 7 is started. The hydraulic cylinder 7 drives the receiving block to descend. After the pipe fitting 20 loses contact with the limiting groove 8, the motor 6 is started. The motor 6 drives the first rotating shaft 4 to rotate, so that the pipe fitting 20 rotates at a constant speed around its axis. Then, the submerged arc welding machine is used to weld the circumferential weld of the pipe fitting 20. Under long-term use, due to the clamping effect of the two clamping plates 15, the pipe fitting 20 can be prevented from slipping, ensuring that the pipe fitting 20 rotates at a constant speed and ensuring the welding quality of the pipe fitting 20.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An auxiliary device for pipe submerged arc welding, characterized by, The base (1) includes a base (1), and a first support seat (2) and a second support seat (3) are connected to the left and right sides of the base (1) respectively. A first rotating shaft (4) and a second rotating shaft (5) are rotatably connected to the first support seat (2) and the second support seat (3) respectively. The ends of the first rotating shaft (4) and the second rotating shaft (5) that are close to each other are provided with clamping mechanisms for clamping the end of the pipe fitting (20). A motor (6) connected to the first rotating shaft is provided on the side of the first support seat (2). A hydraulic cylinder (7) is provided on the top of the base (1). A receiving block is connected to the output end of the hydraulic cylinder (7). A limiting groove (8) for supporting the pipe fitting (20) is provided on the top of the receiving block.

2. The auxiliary device for pipe submerged arc welding according to claim 1, characterized in that, The first support (2) and the second support (3) are both slidably connected to the base (1), and the distance between the first support (2) and the second support (3) and the base (1) can be adjusted.

3. The auxiliary device for pipe submerged arc welding according to claim 2, characterized in that, The bottom of the first support base (2) and the second support base (3) are both fixedly connected with self-locking casters (9).

4. The auxiliary device for submerged arc welding of pipe fittings according to claim 2, characterized in that, The base (1) has sliding grooves (10) on both the front and rear sides. The first support (2) is fixedly connected with two first sliding rods (11) that slide in cooperation with the two sliding grooves (10). The base (1) has sliding holes (12) between the left and right sides. The second support (3) is fixedly connected with a second sliding rod (13) that slides in cooperation with the sliding holes (12).

5. The auxiliary device for submerged arc welding of pipe fittings according to claim 1, characterized in that, The clamping mechanism includes a support rod (14), and the side of the support rod (14) is provided with two clamping plates (15) that slide along the direction of approaching or moving away from each other. The clamping plates (15) have a V-shaped structure.

6. The auxiliary device for submerged arc welding of pipe fittings according to claim 5, characterized in that, The side of the support rod (14) is provided with an inner groove (16). Both clamps (15) are fixedly connected with sliders (17) that slide in cooperation with the inner groove (16). The inner groove (16) is rotatably connected with a screw (18). One slider (17) is provided with a forward threaded hole that is threaded to the screw (18), and the other slider (17) is provided with a reverse threaded hole that is threaded to the screw (18). One end of the screw (18) passes through the support rod (14) and is fixedly connected with a bolt head (19).

7. The auxiliary device for submerged arc welding of pipe fittings according to claim 5, characterized in that, The clamping surface of the clamping plate (15) is fixedly connected with a rubber layer.

8. The auxiliary device for submerged arc welding of pipe fittings according to claim 1, characterized in that, The limiting groove (8) is a V-shaped groove.

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