Pipe ring butt joint device with calibration structure

By designing a pipe-ring butt joint with a calibration structure, using a motor to drive the lead screw and roller to automatically calibrate the steel pipe, and combining an electric push rod to adjust the position of the clamp, the problem of inaccurate calibration caused by manual adjustment in the existing technology is solved, and the accuracy and efficiency of welding are improved.

CN120839731APending Publication Date: 2025-10-28DONGGUAN HUAXINTAI METAL TECH CO LTD
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Patent Information

Application Number
CN202511192972.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

The existing pipe ring butt welder requires manual adjustment of the support assembly when welding steel pipes, resulting in inaccurate calibration and easy deviation, affecting welding quality and efficiency.

Method used

A pipe-ring butt jointer with a calibration structure is designed, which includes a calibration mechanism, a support mechanism and a butt joint mechanism. Automatic calibration and clamping are achieved by driving the lead screw and roller by a motor, and the electric push rod adjusts the position of the clamping block to adapt to steel pipes of different diameters and heights.

Benefits of technology

It enables accurate positioning and clamping of steel pipes without manual adjustment, improving welding accuracy and efficiency, adapting to different welding needs, and enhancing the practicality and convenience of the pipe ring connector.

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Abstract

The invention discloses a pipe ring butt joint device with a calibration structure, and relates to the field of steel pipe auxiliary butt joint equipment.The pipe ring butt joint device comprises a rack and a fixing seat, a base is fixed to the lower portion of the rack, and first sliding grooves are formed in the surfaces of the two ends of the rack; the fixing base is welded to the middle of the rack, a first two-way lead screw and a second two-way lead screw are installed on the inner side of the first sliding groove through bearings, and one end of the first two-way lead screw and one end of the second two-way lead screw are connected with a calibration mechanism. According to the pipe ring butt joint device with the calibration structure, the position of the movable frame is adjusted through the calibration mechanism, so that the movable frame drives the second rolling wheels to abut against the two sides of a steel pipe, meanwhile, the butt joint mechanism drives the clamping blocks to clamp the two sides of the steel pipe, auxiliary butt joint can be carried out when the steel pipe is rotationally calibrated, and when the height of the rack needs to be adjusted, butt joint can be conveniently carried out. And the height of the bottom plate is adjusted through the supporting mechanism, different welding operations can be conveniently carried out, and the practicability and convenience of the pipe ring butt joint device are improved.
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Description

Technical Field

[0001] This invention relates to the field of steel pipe auxiliary docking equipment technology, specifically a pipe ring docking device with a calibration structure. Background Technology

[0002] Steel pipe welding is the process of joining two or more steel pipes together using welding techniques. It is widely used in industries such as construction, machinery, petroleum, and chemical engineering. Common welding methods include electric arc welding, gas shielded welding, and laser welding. A pipe ring butt joint is used in welding operations. This tool, typically made of high-strength materials, is specifically designed for connecting and butt-joining steel pipes and is widely used in construction, petroleum, and chemical industries. It is particularly suitable for welding large-diameter steel pipes, improving work efficiency and safety.

[0003] When welding steel pipes, pipe ring connectors are needed to assist in supporting and connecting the steel pipes. However, most pipe ring connectors require workers to adjust the support components one by one and calibrate the steel pipes together, which is quite troublesome. Manual adjustment is also prone to misalignment, which can lead to welding deviations. Therefore, we propose a pipe ring connector with a calibration structure. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe-ring connector with a calibration structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pipe ring connector with a calibration structure, comprising a frame and a fixed base. A base is fixedly mounted below the frame. A first sliding groove is formed on the surface of both ends of the frame. The fixed base is welded to the middle of the frame. A first bidirectional lead screw and a second bidirectional lead screw are mounted on the inner side of the first sliding groove via bearings. A calibration mechanism is connected to one end of the first and second bidirectional lead screws. A movable frame is threaded onto the outer side of the first and second bidirectional lead screws. A second roller is mounted on the top of the movable frame via a rotating shaft. The calibration mechanism includes a driven wheel, a belt, a driving wheel, and a first motor. The driving wheel is fixedly mounted on one end of the first bidirectional lead screw.

[0006] Preferably, the end of the first bidirectional lead screw near the driving wheel is connected to a first motor via a coupling, and the end of the second bidirectional lead screw near the driving wheel is fixedly sleeved with a driven wheel. Belts are sleeved on the outer sides of the driving wheel and the driven wheel.

[0007] Preferably, the base is connected to a bottom plate via a telescopic rod, and a support mechanism is connected to the top of the bottom plate near the telescopic rod, and the support mechanism is connected to the base.

[0008] Preferably, the inner side of the support mechanism is provided with a second sliding end and a fixed end, and a sliding rod is slidably sleeved on the inner side of the second sliding end, and the sliding rod is connected to the base plate.

[0009] Preferably, a roller is installed inside the fixed base via a bearing, and a No. 3 motor connected to the roller via a coupling is installed on the outside of the fixed base. A support plate is connected to one side of the movable frame, and a No. 2 sliding groove is opened above the support plate. A docking mechanism is connected above the No. 2 sliding groove.

[0010] Preferably, the support mechanism includes a first connecting rod, a second motor, a first sliding end, a screw, and a second connecting rod. The first connecting rod is movably sleeved above the base plate through a fixed end, and the end of the first connecting rod away from the fixed end is connected to the first sliding end through a movable shaft.

[0011] Preferably, a screw is threaded onto the inner side of the first sliding end, one end of the screw is connected to a second motor via a coupling, the screw is connected to the base via a bearing, and a second connecting rod is connected to the top of the second sliding end via a movable shaft.

[0012] Preferably, one end of the second connecting rod is movably connected to the fixed end, the fixed end is located on the inner wall of the base plate and the base, and the middle parts of the first connecting rod and the second connecting rod are connected by a movable shaft.

[0013] Preferably, the docking mechanism includes a sensor, a first roller, a clamping block, a connecting block, a first electric push rod, and a second electric push rod. The first electric push rod is slidably connected above the second slide groove, and the second electric push rod is connected to one side of the first electric push rod.

[0014] Preferably, the second electric push rod is connected to the inner wall of the second slide groove, the output end of the first electric push rod is connected to a clamping block through a connecting block, the two ends of the clamping block are connected to a first roller through a movable shaft, and a sensor is installed in the middle of the clamping block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the pipe ring connector with calibration structure adjusts the position of the moving frame through the calibration mechanism, so that the moving frame drives the No. 2 roller to abut against both sides of the steel pipe. At the same time, the docking mechanism drives the clamping blocks to hold the steel pipe on both sides. When the steel pipe is rotated for calibration, it can also assist in docking. When the height of the frame needs to be adjusted, the height of the base plate can be adjusted through the support mechanism, which facilitates different welding operations and improves the practicality and convenience of the pipe ring connector.

[0016] 1. This pipe-ring connector with a calibration structure starts by starting motor 1, which drives the drive wheel to rotate. The drive wheel then pulls the driven wheel via a belt, which in turn drives the drive wheel and the driven wheel to rotate simultaneously. This causes the moving frame to move closer to each other on the first and second double-acting screws, allowing for limit calibration of the steel pipe without manual adjustment. It can also calibrate and clamp steel pipes of different diameters. The steel pipe is then positioned at the center of the rollers. When welding the steel pipe, motor 3 drives the rollers to rotate. Through friction, the steel pipe can rotate, facilitating welding even while calibrating the steel pipe, thus improving the practicality of the pipe-ring connector.

[0017] 2. This pipe-ring connector with a calibration structure works by starting a second motor to rotate a screw, causing the first sliding end to move on the screw. The first sliding end then rotates a first connecting rod, and the fixed end of one end of the first connecting rod pushes the base plate downward. At the same time, the base plate pulls the second connecting rod downward, and the second connecting rod pulls the second sliding end to slide on the outside of the sliding rod. Simultaneously, the telescopic rod extends, which can quickly push the base plate downward, making it easy to adjust the height of the base plate and raise the frame. This allows for adjustment of the support height of the pipe-ring connector to adapt to different welding requirements and improves the convenience of the pipe-ring connector.

[0018] 3. This pipe-ring connector with a calibration structure, when the sensor detects the steel pipe, the calibration mechanism moves the moving frame closer to both sides of the steel pipe. At the same time, the moving frame moves the support plate, causing the support plate to clamp the clamping blocks on both sides of the steel pipe. The first electric push rod can adjust the height of the clamping blocks according to the height of the steel pipe. Then, the second electric push rod extends, causing the connecting blocks to move closer to each other, which in turn causes the clamping blocks to move closer to each other. Subsequently, the clamping blocks clamp the weld joints of the two steel pipes and bring them closer together. This also assists in docking when calibrating the steel pipe, reduces the docking distance, and improves the working quality of the pipe-ring connector. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the frame of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the calibration mechanism of the present invention;

[0022] Figure 4 This is a three-dimensional cross-sectional view of the base of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the telescopic rod of the present invention;

[0024] Figure 6This is a three-dimensional structural diagram of the support mechanism of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the second sliding end of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the docking mechanism of the present invention.

[0027] In the diagram: 1. Frame; 2. Base; 3. No. 1 slide rail; 4. Fixed seat; 5. Calibration mechanism; 501. Driven wheel; 502. Belt; 503. Drive wheel; 504. No. 1 motor; 6. No. 1 double-acting lead screw; 7. No. 2 double-acting lead screw; 8. Support mechanism; 801. No. 1 connecting rod; 802. No. 2 motor; 803. No. 1 sliding end; 804. Screw; 805. No. 2 connecting rod; 9. Pair Connecting mechanism; 901, sensor; 902, roller No. 1; 903, clamping block; 904, connecting block; 905, electric push rod No. 1; 906, electric push rod No. 2; 10, telescopic rod; 11, slide groove No. 2; 12, support plate; 13, base plate; 15, sliding end No. 2; 16, fixed end; 17, slide rod; 18, moving frame; 19, roller No. 2; 20, roller shaft; 21, motor No. 3. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 The present invention provides a technical solution: a tube ring connector with a calibration structure, including a frame 1 and a fixed base 4. A base 2 is fixed below the frame 1, and a sliding groove 3 is formed on both ends of the frame 1. The fixed base 4 is welded to the middle of the frame 1.

[0030] Please see Figures 1-3The inner side of the first slide groove 3 is equipped with a first bidirectional lead screw 6 and a second bidirectional lead screw 7 via bearings. One end of the first bidirectional lead screw 6 and the second bidirectional lead screw 7 is connected to a calibration mechanism 5. The outer sides of the first bidirectional lead screw 6 and the second bidirectional lead screw 7 are threaded with a moving frame 18. The top of the moving frame 18 is equipped with a second roller 19 via a rotating shaft. The calibration mechanism 5 includes a driven wheel 501, a belt 502, a driving wheel 503, and a first motor 504. One end of the first bidirectional lead screw 6 is fixedly sleeved with the driving wheel 503. The end of the first bidirectional lead screw 6 near the driving wheel 503 is connected to the first motor 504 via a coupling. The end of the second bidirectional lead screw 7 near the driving wheel 503 is fixedly sleeved with the driven wheel 501. The outer sides of the driving wheel 503 and the driven wheel 501 are sleeved with a belt 502.

[0031] In practice, when welding steel pipes, pipe ring connectors are needed for auxiliary support and connection. However, most pipe ring connectors require workers to adjust the support components one by one and calibrate the steel pipes together, which is cumbersome. Manual adjustment is also prone to misalignment, leading to welding deviations. A solution is to place the steel pipes on roller 20, then start motor 504, which drives the drive wheel 503 to rotate. The drive wheel 503 then pulls belt 502, which in turn drives the driven wheel 501 to rotate. This, in turn, causes the drive wheel 503 and driven wheel 501 to simultaneously rotate the first double-acting screw 6 and the second double-acting screw 7, respectively. Then, the moving frame 18 engages with the first bidirectional lead screw 6 and the second bidirectional lead screw 7, causing the moving frame 18 to move closer to each other on the first bidirectional lead screw 6 and the second bidirectional lead screw 7. At the same time, the moving frame 18 drives the second roller 19 to slide in the first slide groove 3. The steel pipe can be limited and calibrated without manual adjustment, and steel pipes of different diameters can be calibrated and clamped. Then, the steel pipe is in the center position of the roller 20. When welding the steel pipe, the third motor 21 drives the roller 20 to rotate. Through friction, the steel pipe can be rotated. Welding can be facilitated while calibrating the steel pipe, which improves the practicality of the pipe ring connector.

[0032] Please see Figure 1 , Figure 2 and Figures 4-7The base 2 is internally connected to a base plate 13 via a telescopic rod 10. A support mechanism 8 is connected to the base plate 13 near the top of the telescopic rod 10, and the support mechanism 8 is connected to the base 2. The support mechanism 8 has a second sliding end 15 and a fixed end 16 on its inner side. A sliding rod 17 is slidably sleeved on the inner side of the second sliding end 15, and the sliding rod 17 is connected to the base plate 13. The support mechanism 8 includes a first connecting rod 801, a second motor 802, a first sliding end 803, a screw 804, and a second connecting rod 805. A first connecting rod 801 is movably sleeved on the top of the base plate 13 via the fixed end 16. One end of the first connecting rod 801, away from the fixed end 16, is connected to a first sliding end 803 via a movable shaft. A screw 804 is threaded onto the inner side of the first sliding end 803. One end of the screw 804 is connected to a second motor 802 via a coupling. The screw 804 is connected to the base 2 via a bearing. A second connecting rod 805 is connected above the second sliding end 15 via a movable shaft. One end of the second connecting rod 805 is movably connected to the fixed end 16. The fixed end 16 is located on the inner wall of the base plate 13 and the base 2. The middle parts of the first connecting rod 801 and the second connecting rod 805 are connected via a movable shaft.

[0033] In practice, the support height of most pipe-ring connectors is not easily adjustable according to the height of the welding machine, resulting in the need to replace pipe-ring connectors of different heights for different welding machines. This can be addressed by starting the second motor 802 to drive the screw 804 to rotate, causing the screw 804 to engage with the first sliding end 803 via a thread. This allows the first sliding end 803 to move on the screw 804, which in turn drives the first connecting rod 801 to rotate. The fixed end 16 at one end of the first connecting rod 801 pushes the base plate 13 downward, while the base plate 13 pulls the second connecting rod 805 downward. The second connecting rod 805 pulls the second sliding end 15 to slide outside the sliding rod 17. At the same time, the telescopic rod 10 extends, which can quickly push the base plate 13 downward, making it easy to adjust the height of the base plate 13 and raise the frame 1. This allows for adjustment of the support height of the pipe-ring connector, adapting to different welding needs and improving the convenience of the pipe-ring connector.

[0034] Please see Figure 1 , Figure 2 and Figure 8The fixed base 4 has a roller 20 installed inside via bearings. A third motor 21, connected to the roller 20 via a coupling, is installed on the outside of the fixed base 4. A support plate 12 is connected to one side of the movable frame 18. A second sliding groove 11 is formed above the support plate 12. A docking mechanism 9 is connected above the second sliding groove 11. The docking mechanism 9 includes a sensor 901, a first roller 902, a clamping block 903, a connecting block 904, a first electric push rod 905, and a second electric push rod 906. The second sliding groove 11... A first electric push rod 905 is slidably connected at the top. A second electric push rod 906 is connected to one side of the first electric push rod 905. The second electric push rod 906 is connected to the inner wall of the second slide groove 11. The output end of the first electric push rod 905 is connected to a clamping block 903 through a connecting block 904. The two ends of the clamping block 903 are connected to a first roller 902 through a movable shaft. A sensor 901 is installed in the middle of the clamping block 903. The sensor 901 is an infrared sensor. A triangular bayonet is opened on the inner side of the clamping block 903.

[0035] In practice, when connecting steel pipes, external conveying equipment is needed to assist in pushing the two steel pipes to their welding positions. However, the welding distance may be too large, making subsequent welding inconvenient. External conveying equipment can be used to bring the end of the steel pipe to be welded close to the clamping block 903. When the sensor 901 detects the steel pipe, the calibration mechanism 5 moves the moving frame 18 closer to both sides of the steel pipe. Simultaneously, the moving frame 18 moves the support plate 12, causing the support plate 12 to clamp the clamping block 903 on both sides of the steel pipe. The first electric push rod 905 can adjust the height of the clamping block 903 according to the height of the steel pipe. Subsequently, the second electric push rod 906 extends, causing the connecting block 904 to move closer together, which in turn causes the clamping block 903 to move closer together. The clamping block 903 then clamps the welding joints of the two steel pipes closer together. The first roller 902 facilitates the rotation of the steel pipe and also assists in the connection during steel pipe calibration, reducing the welding distance and improving the working quality of the pipe ring connector.

[0036] In summary, when using the pipe ring connector with calibration structure, two steel pipes are transported above the roller 20 via an external conveying device. Subsequently, the calibration mechanism 5 and the docking mechanism 9 drive the moving frame 18 and the clamping block 903 to calibrate and dock the steel pipes, facilitating welding. When it is necessary to adjust the support height of the pipe ring connector, the height of the frame 1 can be adjusted through the support mechanism 8 to adapt to different welding requirements, thereby improving the practicality and convenience of the pipe ring connector. The contents not described in detail in this specification are prior art known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe ring connector with a calibration structure, comprising a frame (1) and a mounting base (4), characterized in that: A base (2) is fixed below the frame (1). A first sliding groove (3) is opened on both ends of the frame (1). The fixed seat (4) is welded to the middle of the frame (1). A first double-acting screw (6) and a second double-acting screw (7) are installed on the inner side of the first sliding groove (3) through bearings. A calibration mechanism (5) is connected to one end of the first double-acting screw (6) and the second double-acting screw (7). A moving frame (18) is threaded on the outer side of the first double-acting screw (6) and the second double-acting screw (7). A second roller (19) is installed on the top of the moving frame (18) through a rotating shaft. The calibration mechanism (5) includes a driven wheel (501), a belt (502), a driving wheel (503) and a first motor (504). A driving wheel (503) is fixedly sleeved on one end of the first double-acting screw (6).

2. A pipe ring connector with a calibration structure according to claim 1, characterized in that: The first bidirectional lead screw (6) is connected to a first motor (504) via a coupling at one end near the drive wheel (503). The second bidirectional lead screw (7) is fixedly sleeved with a driven wheel (501) at one end near the drive wheel (503). A belt (502) is sleeved on the outer side of the drive wheel (503) and the driven wheel (501).

3. A pipe ring connector with a calibration structure according to claim 1, characterized in that: The base (2) is connected to a base plate (13) via a telescopic rod (10). A support mechanism (8) is connected to the base plate (13) above the telescopic rod (10), and the support mechanism (8) is connected to the base (2).

4. A pipe ring connector with a calibration structure according to claim 3, characterized in that: The inner side of the support mechanism (8) is provided with a second sliding end (15) and a fixed end (16). The inner side of the second sliding end (15) is slidably sleeved with a slide rod (17), which is connected to the base plate (13).

5. A pipe ring connector with a calibration structure according to claim 4, characterized in that: The fixed base (4) has a roller (20) installed inside by bearings. The fixed base (4) has a No. 3 motor (21) connected to the roller (20) by a coupling. The moving frame (18) has a support plate (12) connected to one side. The support plate (12) has a No. 2 slide groove (11) above it. The No. 2 slide groove (11) has a docking mechanism (9) connected above it.

6. A pipe ring connector with a calibration structure according to claim 4, characterized in that: The support mechanism (8) includes a first connecting rod (801), a second motor (802), a first sliding end (803), a screw (804), and a second connecting rod (805). The first connecting rod (801) is movably sleeved on the top of the base plate (13) through a fixed end (16). The end of the first connecting rod (801) away from the fixed end (16) is connected to the first sliding end (803) through a movable shaft.

7. A pipe ring connector with a calibration structure according to claim 6, characterized in that: The inner side of the first sliding end (803) is threaded with a screw (804). One end of the screw (804) is connected to the second motor (802) through a coupling. The screw (804) is connected to the base (2) through a bearing. The second sliding end (15) is connected to the second connecting rod (805) above it through a movable shaft.

8. A pipe ring connector with a calibration structure according to claim 7, characterized in that: One end of the second connecting rod (805) is movably connected to the fixed end (16). The fixed end (16) is located on the inner wall of the base plate (13) and the base (2). The middle parts of the first connecting rod (801) and the second connecting rod (805) are connected by a movable shaft.

9. A pipe ring connector with a calibration structure according to claim 5, characterized in that: The docking mechanism (9) includes a sensor (901), a first roller (902), a clamping block (903), a connecting block (904), a first electric push rod (905), and a second electric push rod (906). The first electric push rod (905) is slidably connected above the second slide groove (11), and the second electric push rod (906) is connected to one side of the first electric push rod (905).

10. A pipe ring connector with a calibration structure according to claim 9, characterized in that: The second electric push rod (906) is connected to the inner wall of the second slide groove (11). The output end of the first electric push rod (905) is connected to a clamping block (903) through a connecting block (904). The two ends of the clamping block (903) are connected to a first roller (902) through a movable shaft. A sensor (901) is installed in the middle of the clamping block (903).