A pipe welding positioning device

Abstract

This utility model belongs to the field of pipeline welding technology, specifically relating to a pipeline welding positioning device, including a positioning platform and a connecting plate. The connecting plate is fixedly connected to the rear side of the positioning platform, and a positioning rotation mechanism is provided on the top of the positioning platform. The positioning rotation mechanism includes a rotating column, a square plate, a sleeve, a threaded rod, a connecting rod, a positioning component, a guide groove, a connecting block, and a turntable. The rotating column is rotatably connected to the inside of the connecting plate, with its two ends penetrating to the front and rear sides of the connecting plate, respectively. The square plate is sleeved on the surface of the rotating column, the sleeve is slidably connected to the front end of the rotating column surface, and the threaded rod is threadedly connected to the inside of the rotating column. This utility model provides a pipeline welding positioning device that can assist in positioning the pipeline and also facilitate the rotation adjustment of the pipeline, enabling welders to quickly complete welding at multiple angles, significantly shortening welding time and improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline welding technology, specifically relating to a pipeline welding positioning device. Background Technology

[0002] Pipeline welding refers to the process of connecting pipelines using welding technology. It is commonly used in the construction, maintenance, and repair of pipelines in industries such as petroleum, natural gas, chemical, power, and water supply and drainage. Pipeline welding ensures the integrity, sealing, and long-term reliability of pipeline systems. To ensure that the pipelines maintain the correct docking position during the welding process, positioning devices are used to assist in the precise positioning, docking, and fixing of the pipelines.

[0003] After the auxiliary positioning device positions the pipeline, the pipeline needs to be rotated and adjusted during the welding process. However, the existing positioning device cannot easily rotate and adjust the pipeline after positioning. Welders need to frequently disassemble and adjust the pipeline from the positioning device, which not only increases the workload but also greatly reduces welding efficiency and prolongs the welding operation time. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline welding positioning device that can assist in positioning the pipeline and also conveniently adjust the rotation of the pipeline, enabling welders to quickly complete welding from multiple angles, significantly shortening welding time and improving work efficiency.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A pipe welding positioning device includes a positioning platform and a connecting plate. The connecting plate is fixedly connected to the rear side of the positioning platform, and a positioning rotation mechanism is provided on the top of the positioning platform. The positioning rotation mechanism includes a rotating column, a square plate, a sleeve, a threaded rod, a connecting rod, positioning elements, guide grooves, connecting blocks, and a turntable. The rotating column is rotatably connected to the interior of the connecting plate, with both ends of the rotating column penetrating to the front and rear sides of the connecting plate, respectively. The square plate is sleeved on the surface of the rotating column. The sleeve is slidably connected to the front end of the surface of the rotating column. The threaded rod is threadedly connected to the interior of the rotating column, with its front end penetrating the rotating column and extending to the front end of the sleeve. One end of each of the four connecting rods is connected to the side surface of the sleeve via a rotating shaft. The four positioning elements are respectively connected to the other ends of the four connecting rods via rotating shafts. The four guide grooves are all opened on the front side of the square plate. The four connecting blocks are fixedly connected to the rear sides of the four positioning elements and slidably connected to the interior of the four guide grooves. The turntable is fixedly connected to the rear end of the rotating column.

[0007] Preferably, a protrusion is fixedly connected to the rear side of the square plate. There are four protrusions, which are evenly distributed on the rear side of the square plate. A circular positioning groove is opened on the front side of the connecting plate, and the protrusion is slidably connected to the inner wall of the circular positioning groove.

[0008] Preferably, a compression knob is fixedly connected to the front side of the threaded rod. The diameter of the compression knob is larger than the diameter of the sleeve, and the compression knob is rotatably connected to the front end of the sleeve.

[0009] Preferably, a limiting strip is fixedly connected to the surface of the rotating column, and a groove is provided on the inner wall of the sleeve to cooperate with the limiting strip.

[0010] Preferably, the top of the positioning platform is provided with a rotating roller installed on the inner wall of the groove.

[0011] Preferably, the bottom of the positioning platform is connected to two side hinges with support legs, and the support legs are fixedly connected to the front side of the positioning platform with positioning columns, and the surface of the positioning columns is fitted with reinforcing rods.

[0012] Preferably, the positioning element is arc-shaped, and an anti-slip rubber strip is fixedly connected to the outer surface of the positioning element.

[0013] The technical effects achieved by this utility model are as follows:

[0014] In this invention, when positioning and welding a pipe, the pipe can first be fitted onto the outer surface of the positioning component. Then, by manually rotating the column using a turntable, and then by pressing the screw rod backward using the pressing knob, the sleeve is pressed and slid backward on the surface of the rotating column. The backward sliding of the sleeve causes the positioning component to expand outward simultaneously through the connecting rod and the cooperation of the connecting block and the guide groove. Under the pressure of the outward expansion of the four positioning components, the pipe can be pressed and positioned on the surface of the positioning component and on the positioning platform. Subsequently, when welding the pipe and needing to rotate and adjust the pipe, the turntable can be used to rotate the rotating column. The rotation of the rotating column can cause the square plate, the front structure, and the positioned pipe to rotate and adjust simultaneously. After the pipe rotates, the welder can quickly complete the welding at multiple angles, effectively improving the welding efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the protrusion and circular positioning groove of this utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of the positioning and rotating mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the sleeve and rotating column of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Positioning platform; 101. Connecting plate; 201. Rotating column; 202. Square plate; 203. Sleeve; 204. Threaded rod; 205. Connecting rod; 206. Positioning component; 207. Guide groove; 208. Connecting block; 209. Turntable; 301. Protrusion; 302. Circular positioning groove; 4. Extrusion knob; 501. Limiting strip; 502. Groove; 601. Recess; 602. Rotating roller; 701. Support leg; 702. Positioning column; 703. Reinforcing rod; 8. Anti-slip rubber strip. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figures 1-5As shown, a pipeline welding positioning device includes a positioning platform 1 and a connecting plate 101. The connecting plate 101 is fixedly connected to the rear side of the positioning platform 1, and a positioning rotation mechanism is provided on the top of the positioning platform 1. The positioning rotation mechanism includes a rotating column 201, a square plate 202, a sleeve 203, a threaded rod 204, a connecting rod 205, a positioning element 206, a guide groove 207, a connecting block 208, and a turntable 209. The rotating column 201 is rotatably connected to the inside of the connecting plate 101, and both ends of the rotating column 201 extend to the front and rear sides of the connecting plate 101, respectively. The square plate 202 is sleeved on the surface of the rotating column 201. The sleeve 203 is slidably connected to the front end of the surface of the rotating column 201. The threaded rod 204 is threadedly connected to the inside of the rotating column 201, and the front end of the threaded rod 204 extends through the rotating column 201 and reaches the front of the sleeve 203. At one end, one end of each of the four connecting rods 205 is connected to the side surface of the sleeve 203 via a rotating shaft. The four positioning parts 206 are respectively connected to the other end of the four connecting rods 205 via rotating shafts. The four guide grooves 207 are all opened on the front side of the square plate 202. The four connecting blocks 208 are respectively fixedly connected to the rear side of the four positioning parts 206. The four connecting blocks 208 are respectively slidably connected to the inside of the four guide grooves 207. The turntable 209 is fixedly connected to the rear end of the rotating column 201. With the cooperation of the positioning and rotating mechanism, after the pipe is positioned, the rotating column 201 and the positioned pipe can be rotated by the turntable 209 to adjust the welding angle, ensuring that the welding part reaches the optimal angle, improving the welding quality, and eliminating the need to manually adjust the pipe angle or reposition it. This can greatly save adjustment time and improve work efficiency.

[0024] like Figure 3 As shown, four protrusions 301 are fixedly connected to the rear side of the square plate 202, and they are evenly distributed on the rear side of the square plate. A circular positioning groove 302 is provided on the front side of the connecting plate 101. The protrusions 301 are slidably connected to the inner wall of the circular positioning groove 302. When the rotating column 201 rotates and drives the square plate 202 to rotate, the square plate 202 can simultaneously drive the rear protrusions 301 to slide in the circular positioning groove 302 on the front side of the connecting plate 101. This ensures that the protrusions 301 always slide along a predetermined trajectory when the square plate 202 and the front structure rotate. This ensures that the square plate 202, the front structure, and the pipe will not deviate during rotation, thereby improving the stability during pipe rotation adjustment and avoiding inaccurate welding or unstable operation caused by positional deviation.

[0025] like Figure 1 and Figure 2As shown, a pressing knob 4 is fixedly connected to the front side of the threaded rod 204. The diameter of the pressing knob 4 is larger than the diameter of the sleeve 203. The pressing knob 4 is rotatably connected to the front end of the sleeve 203. The pressing knob 4 can smoothly and conveniently drive the threaded rod 204 to rotate inside the rotating column 201, and can press and drive the sleeve 203 to slide on the surface of the rotating column 201. It can also be precisely adjusted by rotating the threaded rod 204, so that the positioning member 206 can effectively position pipes of different diameters.

[0026] like Figure 5 As shown, a limiting strip 501 is fixedly connected to the surface of the rotating column 201, and a groove 502 that cooperates with the limiting strip 501 is opened on the inner wall of the sleeve 203. When the sleeve 203 slides on the surface of the rotating column 201, the sleeve 203 can slide parallel under the adaptation of the limiting strip 501 and the groove 502, so as to prevent the sleeve 203 from rotating or deviating on the surface of the rotating column 201, which would affect the auxiliary positioning of the pipeline.

[0027] like Figure 1 and Figure 2 As shown, a groove 601 is provided on the top of the positioning platform 1, and a rotating roller 602 is installed on the inner wall of the groove 601. After the pipe is positioned, when the bottom of the pipe contacts the positioning platform 1, the rotating roller 602 on the top of the positioning platform 1 can reduce the contact friction between the pipe and the positioning platform 1 during rotation and adjustment, which can make the pipe more stable during adjustment and rotation. The rotating roller 602 also plays a supporting role, avoiding direct contact between the pipe and the surface of the positioning platform 1, reducing uneven torque or vibration caused by friction, and ensuring smoother and more stable pipe rotation.

[0028] like Figure 1 and Figure 2 As shown, the bottom of the positioning platform 1 is connected to two hinges on both sides with support legs 701. The support legs 701 are fixedly connected to the front side of the positioning platform 1 with positioning posts 702. The surface of the positioning posts 702 is fitted with reinforcing rods 703. The support legs 701 can provide stable support for the positioning platform 1 and the top structure. The support legs 701 connected by hinges are easy to fold and store, making it convenient for staff to carry and transport the device. When the support legs 701 are spread out, the reinforcing rods 703 can be connected with the positioning posts 702 to improve the support stability of the support legs 701 for the positioning platform 1.

[0029] like Figure 1 and Figure 2As shown, the positioning element 206 is arc-shaped, and an anti-slip rubber strip 8 is fixedly connected to its outer surface. The arc-shaped positioning element 206 can better fit the inner wall of the pipe, providing a larger contact area, thereby enhancing the stability between the pipe and the positioning element 206. This allows the pipe to remain more fixed and stable on the positioning platform 1, avoiding displacement of the pipe position due to external force or rotation. The anti-slip rubber strip 8 fixed to the outer surface of the positioning element 206 can increase friction and prevent the positioning element 206 from sliding during positioning and adjustment, thereby improving the stability of pipe positioning.

[0030] The working principle of this utility model is as follows: When positioning and welding a pipe, the pipe can first be placed on the outer surface of the positioning component 206. Then, by manually guiding the rotating column 201 through the turntable 209, the screw rod 204 is pushed backward by the pressing knob 4, and the sleeve 203 is pressed to slide backward on the surface of the rotating column 201. The backward sliding of the sleeve 203 can drive the positioning component 206 through the connecting rod 205. With the cooperation of the connecting block 208 and the guide groove 207, the four positioning components 206 expand outward at the same time. Under the outward expansion and pressing of the four positioning components 206, the pipe can be pressed and positioned on the surface of the positioning component 206 and located on the positioning platform 1. Subsequently, when welding the pipe and it is necessary to rotate and adjust the pipe, the rotating column 201 can be rotated by the turntable 209. The rotation of the rotating column 201 can drive the square plate 202 and the front structure and the positioned pipe to rotate and adjust at the same time. After the pipe is rotated, the welding worker can quickly complete the welding at multiple angles, which effectively improves the welding efficiency.

[0031] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A pipe welding positioning device, characterized in that: It includes a positioning platform (1) and a connecting plate (101), the connecting plate (101) being fixedly connected to the rear side of the positioning platform (1), and a positioning rotation mechanism being provided on the top of the positioning platform (1); The positioning and rotating mechanism includes a rotating column (201), a square plate (202), a sleeve (203), a threaded rod (204), a connecting rod (205), a positioning element (206), a guide groove (207), a connecting block (208), and a turntable (209). The rotating column (201) is rotatably connected to the inside of the connecting plate (101). The two ends of the rotating column (201) extend to the front and rear sides of the connecting plate (101), respectively. The square plate (202) is sleeved on the surface of the rotating column (201). The sleeve (203) is slidably connected to the front end of the surface of the rotating column (201). The threaded rod (204) is threadedly connected to the inside of the rotating column (201). The front end of the threaded rod (204) passes through the rotating column (201) and extends to the front end of the sleeve (203). One end of each of the four connecting rods (205) is connected to the side surface of the sleeve (203) through a rotating shaft. The four positioning elements (206) are respectively connected to the other end of the four connecting rods (205) through a rotating shaft. The four guide grooves (207) are all opened on the front side of the square plate (202). The four connecting blocks (208) are respectively fixedly connected to the rear side of the four positioning elements (206). The four connecting blocks (208) are respectively slidably connected to the inside of the four guide grooves (207). The turntable (209) is fixedly connected to the rear end of the rotating column (201).

2. The pipeline welding positioning device according to claim 1, characterized in that: The square plate (202) is fixedly connected to a protrusion (301) on the rear side. There are four protrusions (301) and they are evenly distributed on the rear side of the square plate (202). A circular positioning groove (302) is opened on the front side of the connecting plate (101). The protrusions (301) are slidably connected to the inner wall of the circular positioning groove (302).

3. The pipeline welding positioning device according to claim 1, characterized in that: A pressing knob (4) is fixedly connected to the front side of the threaded rod (204). The diameter of the pressing knob (4) is larger than the diameter of the sleeve (203). The pressing knob (4) is rotatably connected to the front end of the sleeve (203).

4. The pipeline welding positioning device according to claim 1, characterized in that: The surface of the rotating column (201) is fixedly connected to a limiting strip (501), and the inner wall of the sleeve (203) is provided with a groove (502) that cooperates with the limiting strip (501).

5. A pipeline welding positioning device according to claim 1, characterized in that: The top of the positioning platform (1) is provided with a groove (601), and a rotating roller (602) is installed on the inner wall of the groove (601).

6. The pipeline welding positioning device according to claim 1, characterized in that: The bottom of the positioning platform (1) is connected to two hinges with support legs (701). The support legs (701) are fixedly connected to the front side of the positioning platform (1) with positioning posts (702). The surface of the positioning posts (702) is fitted with reinforcing rods (703).

7. A pipeline welding positioning device according to claim 1, characterized in that: The positioning element (206) is arc-shaped, and an anti-slip rubber strip (8) is fixedly connected to the outer surface of the positioning element (206).

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