Automatic adjusting type aligning device for pipeline butt joint

Abstract

The invention discloses an automatic adjusting type aligning device for pipeline butt joint. The automatic adjusting type aligning device comprises two semi-annular supports which are connected in a hinged mode. A plurality of aligning assemblies are arranged in the circumferential direction of the semi-annular support, each aligning assembly comprises a mounting base and a hydraulic cylinder, and the butt joint position of the joint of the two sections of pipelines is adjusted through the hydraulic cylinders; a distance measuring module is arranged on the mounting seat and measures the distance between the mounting seat and the pipeline wall; the device further comprises a control unit, the distance measuring module is electrically connected with the control unit, and the control unit controls the extension amount of the hydraulic cylinder through a distance value measured by the distance measuring module. A movable welding assembly is arranged on the side wall of the semi-annular support, and the movable welding assembly is used for welding and fixing a pipeline joint after butt joint is completed. The device can automatically and quickly conduct butt joint on two sections of pipelines, is high in butt joint precision, can adapt to butt joint operation of various pipelines, can also conduct welding operation synchronously, improves the efficiency of subsequent welding operation, and is high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of external pipe docking devices, and in particular to an automatically adjustable docking device for pipe docking. Background Art

[0002] Pipeline construction usually involves splicing multiple shorter pipes into a longer pipe to meet personalized needs. The more common splicing method is to use flanges, but flange connection will increase the outer diameter of the pipe wall at the connection, which cannot meet the use requirements in some occasions. There are also some methods that use socket connections. In layman's terms, it is necessary to insert a pipe with a socket at one end into the socket of another pipe along one direction, and then seal it to make it a solid and closed whole. However, due to the heavy weight and long length of large pipes, it will be difficult to introduce the connection between pipes during the splicing process, and the quality of pipe connection is difficult to guarantee. In addition, there is also a welding method, that is, two sections of pipes are connected using an external connector, and then welded after connection. This method will not increase the size of the outer wall of the pipe after connection, but the existing external connector needs to be adjusted repeatedly during connection, has poor versatility, is large in size, has poor connection accuracy, and is cumbersome to operate. For example, the invention patent with application number 202310854463.3 discloses a pipe docking device. When using it for pipe docking, the two pipes are respectively inserted into the clamping cavity jointly formed by the upper clamping device and the lower clamping device of the two pipe clamping devices, and then the clamping cavity is reduced, so that the upper clamping device and the corresponding lower clamping device can clamp a pipe together. Since the distance between the two pipe clamping devices is adjustable, after the pipe clamping device clamps the pipe, the two pipe clamping devices are brought close to each other to dock the two pipes. Compared with the prior art, the construction difficulty is low, the efficiency is high, the cost is low, and the construction safety performance is high, but its volume is large. When docking, the pipe needs to be raised to a specified height before the docking operation can be carried out, and circumferential multi-point welding cannot be achieved after docking. Secondary adjustment is required during subsequent welding operations, which reduces the docking efficiency and increases labor costs. Summary of the invention

[0003] The purpose of the present invention is to provide an automatically adjustable pipe docking device, which can automatically and quickly dock two sections of pipes, has high docking accuracy, can adapt to docking operations of various pipes, and can also perform welding operations simultaneously, thereby improving the efficiency of subsequent welding operations and having strong practicality.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A docking device for automatically adjusting pipes, comprising two semi-annular brackets connected in an articulated manner, wherein the two semi-annular brackets are closed to form a circular bracket; a plurality of docking components are arranged in the circumferential direction of the semi-annular bracket, wherein the docking components comprise a mounting seat fixedly mounted on the semi-annular bracket and two hydraulic cylinders installed on the mounting seat at intervals, wherein the docking position of two pipe interfaces is adjusted by the hydraulic cylinders; a distance measuring module is arranged on the mounting seat, wherein the distance measuring module measures the distance between the mounting seat and the pipe wall; a control unit is also included, wherein the distance measuring module is electrically connected to the control unit, wherein the control unit controls the extension amount of the hydraulic cylinder by the distance value measured by the distance measuring module; a movable welding component is arranged on the side wall of the semi-annular bracket, wherein the movable welding component is used to weld and fix the pipe joint after docking.

[0005] Preferably, the number of the mating components arranged on the two semi-annular brackets is the same, and a group of mating components correspondingly arranged on the two semi-annular brackets are located on a diameter of the circular bracket.

[0006] Preferably, the distance measurement module is a laser ranging sensor.

[0007] Preferably, a displacement sensor is provided on the hydraulic cylinder, and the displacement sensor is used to measure the extension amount of the piston rod of the hydraulic cylinder; the displacement sensor is electrically connected to the control unit.

[0008] Preferably, a display and a manual controller are provided on the control unit, the display is used to display the distance value measured by the distance measurement module and the extension amount of the hydraulic cylinder; the manual controller is used to independently control the extension and retraction of the hydraulic cylinder.

[0009] Preferably, the movable welding assembly includes a semi-annular rack fixedly mounted on the side wall of the semi-annular bracket, a support base slidably mounted on the semi-annular rack, a drive motor fixedly mounted on the support base, a drive gear fixedly mounted on the output end of the drive motor and a cross slide fixedly mounted on the support base, the drive gear is meshingly connected to the semi-annular rack, and the welding gun is mounted on the cross slide.

[0010] Preferably, the movable welding assemblies are provided in two groups, and the two groups of movable welding assemblies are arranged opposite to each other. During welding operation, the two groups of movable welding assemblies move in the same direction.

[0011] Preferably, a clamping assembly is provided on the end of the semi-annular bracket, and when the two semi-annular brackets are closed, the clamping assembly clamps and locks the two semi-annular brackets.

[0012] Preferably, the clamping assembly is a U-shaped piece fixedly mounted on the end of the semi-annular bracket. When the two semi-annular brackets are closed, one end of the semi-annular bracket is located in the U-shaped piece. A connecting hole is provided at the overlapping portion of the semi-annular bracket and the U-shaped piece, and a pin is used to connect the semi-annular bracket and the U-shaped piece.

[0013] In the present invention, the hydraulic cylinder can adjust the pressure of the hydraulic cylinder by using a pressure regulating valve according to the diameter and wall thickness of the pipe section. Under the condition of ensuring the docking pressure, the deformation of the pipe section can be avoided and the docking accuracy can be ensured. The adjustment method of the hydraulic cylinder can be adjusted according to the measured docking error value, and multiple hydraulic cylinders can be adjusted in linkage according to the built-in program, thereby improving the docking efficiency and avoiding the tedious process of manual repeated adjustment and measurement. The corresponding docking components arranged on the two semi-annular brackets are located on a diameter of the circular bracket. The two groups of docking components extend and contract one by one and adjust synchronously, simplifying the procedures required for synchronous adjustment.

[0014] The distance measurement module can measure the distance between it and the outer wall of the pipeline in real time, and can control the corresponding hydraulic cylinder for adjustment according to this distance with high adjustment accuracy. The displacement sensor installed on the hydraulic cylinder can measure the extension amount of the hydraulic cylinder in real time, which is convenient for automatic control.

[0015] The movable welding assembly can perform local welding on the interface of the pipeline after the pipeline is butt-jointed, and can achieve symmetrical position synchronous welding, reducing the impact of thermal deformation generated during welding on the coaxiality of the pipeline butt-jointed, and can also rotate for multi-point welding, and then weld the unwelded parts, avoiding secondary adjustments during subsequent welding operations. The clamping assembly can ensure the stability of the two semi-circular brackets after closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; In the figure: 1. semi-circular bracket; 2. matching component; 3. distance measurement module; 4. control unit; 5. displacement sensor; 6. movable welding component; 7. clamping component; 20. mounting seat; 21. hydraulic cylinder; 60. semi-circular rack; 61. supporting seat; 62. driving motor; 63. driving gear; 64. cross slide. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1The automatic adjustment type pipe docking device shown comprises two semi-circular brackets 1 connected by bearings and pins, and the two semi-circular brackets 1 are closed to form a circular bracket. When in use, the pipe to be docked is set in the circular bracket. After the operation is completed, the two semi-circular brackets 1 are opened to take out the pipe after docking. In this embodiment, a clamping assembly 7 is arranged on the end of the semi-circular bracket 1. When the two semi-circular brackets 1 are closed, the clamping assembly 7 clamps and locks the two semi-circular brackets 1. Specifically, the clamping assembly 7 is a U-shaped piece fixedly installed at the end of one semi-circular bracket 1 by welding. When the two semi-circular brackets 1 are closed, one end of the other semi-circular bracket 1 is located in the U-shaped piece. A connecting hole is arranged at the overlap of the semi-circular bracket 1 and the U-shaped piece, and the semi-circular bracket 1 and the U-shaped piece are connected by a pin. When the two semi-circular brackets 1 need to be opened, only the lower cover pin needs to be removed to separate the semi-circular bracket 1 and the U-shaped piece.

[0018] A plurality of mating components 2 are arranged in the circumferential direction of the semi-circular bracket 1. Specifically, the number of mating components 2 arranged on the two semi-circular brackets 1 is the same, and a group of mating components 2 arranged at corresponding positions on the two semi-circular brackets 1 is located on a diameter of the circular bracket. The mating components 2 include a mounting seat 20 fixedly mounted on the semi-circular bracket 1 by welding or fasteners and two hydraulic cylinders 21 fixedly mounted on the mounting seat 20 at intervals, and the docking position at the interface of the two sections of the pipeline is adjusted by the hydraulic cylinders 21. The piston rod of the hydraulic cylinder 21 coincides with the diameter of the circular bracket.

[0019] A distance measuring module 3 is fixedly arranged on the mounting seat 20, and the distance measuring module 3 measures the distance between it and the pipe wall, thereby realizing the control of the docking position of the two pipe sections. In this embodiment, the distance measuring module 3 is a laser distance measuring sensor.

[0020] The docking device also includes a control unit 4, the distance measurement module 3 is electrically connected to the control unit 4, and the control unit 4 controls the extension of the hydraulic cylinder 21 through the distance value measured by the distance measurement module 3. Specifically, the solenoid valve used to control the hydraulic cylinder 21 is electrically connected to the control unit 4, and the extension and contraction of the hydraulic cylinder 21 is controlled by the solenoid valve. A displacement sensor 5 is provided on the hydraulic cylinder 21, and the displacement sensor 5 is used to measure the extension of the piston rod of the hydraulic cylinder 21; the displacement sensor 5 is electrically connected to the control unit 4, and the displacement sensor 5 transmits the measured extension of the piston rod to the control unit 4 in real time to provide control information for it. In a preferred embodiment, a display and a manual controller are provided on the control unit 4, and the display is used to display the distance value measured by the distance measurement module 3 and the extension of the hydraulic cylinder 21 measured by the displacement sensor 5 for viewing by the operator. The manual controller is used to control the extension and contraction of the hydraulic cylinder 21 alone. The control unit 4 is an industrial controller, such as a PLC, a single-chip microcomputer or an industrial computer.

[0021] A movable welding assembly 6 is provided on the side wall of the semi-circular bracket 1, and the movable welding assembly 6 is used to weld and fix the pipe joint after the butt joint is completed. Two groups of movable welding assemblies 6 are provided, and the two groups of movable welding assemblies 6 are arranged opposite to each other. During the welding operation, the two groups of movable welding assemblies 6 move clockwise or counterclockwise in the same direction and at the same speed to perform the welding operation.

[0022] The movable welding assembly 6 includes a semi-annular rack 60 fixedly mounted on the side wall of the semi-annular bracket 1 by fasteners, a support seat 61 slidably mounted on the semi-annular rack 60, a drive motor 62 fixedly mounted on the support seat 61 by fasteners, a drive gear 63 fixedly mounted on the output end of the drive motor 62 by a key, and a cross slide 64 fixedly mounted on the support seat 61 by fasteners. The drive gear 63 is meshed and connected with the semi-annular rack 60, and the welding gun is fixedly mounted on the cross slide 64. The cross slide 64 uses an electric cross slide. The cross slide 64 is controlled by the control unit 4 to move, driving the welding gun to lift and lower and perform welding operations, which can realize zigzag welding operations and ensure welding quality.

[0023] During operation, the device is first calibrated using a whole standard round pipe. At this time, the measured values ​​of the displacement sensor 5 and the distance measurement module 3 are used as the basic reference values. During operation, adjustments are made according to this reference value. After the two sections of metal pipes to be butted are installed on the device, the butt joint is set at the middle position of the butt assembly 2. The hydraulic cylinder 21 is extended through the control unit 4 to press the two sections of the pipes together. Adaptive adjustments are made according to the reference value. When the butted pipes do not meet the coaxiality requirements, manual adjustments are made using a manual controller. When the butted pipes meet the requirements, the movable welding assembly 6 is started, and the two welding guns are moved to the joint. The coordinated actions of the drive motor 62 and the cross slide 64 are used to perform local welding on the joint. During welding, the pipes are welded synchronously and in the same direction at the symmetrical positions to avoid the influence of the butt joint coaxiality caused by thermal deformation.

[0024] The above embodiments are only some illustrations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. An automatically adjustable pipe docking device, comprising two semi-annular brackets connected in a hinged manner, wherein the two semi-annular brackets are closed to form a circular bracket; characterized in that: A plurality of docking components are arranged in the circumferential direction of the semi-circular bracket, and the docking components include a mounting seat fixedly mounted on the semi-circular bracket and two hydraulic cylinders installed on the mounting seat at intervals, and the docking position of the two pipe interfaces is adjusted by the hydraulic cylinders; a distance measuring module is arranged on the mounting seat, and the distance measuring module measures the distance between it and the pipe wall; a control unit is also included, and the distance measuring module is electrically connected to the control unit, and the control unit controls the extension amount of the hydraulic cylinder through the distance value measured by the distance measuring module; a movable welding component is arranged on the side wall of the semi-circular bracket, and the movable welding component welds and fixes the pipe joint after docking.

2. The automatic adjustable pipe docking device according to claim 1, characterized in that: The number of the mating components arranged on the two semi-annular supports is the same, and a group of mating components correspondingly arranged on the two semi-annular supports is located on a diameter of the circular support.

3. The automatic adjustable pipe docking device according to claim 1 or 2, characterized in that: The distance measurement module is a laser distance measurement sensor.

4. The automatic adjustable pipe docking device according to claim 1, characterized in that: A displacement sensor is arranged on the hydraulic cylinder, and the displacement sensor is used to measure the extension amount of the piston rod of the hydraulic cylinder; the displacement sensor is electrically connected to the control unit.

5. The automatic adjustable pipe docking device according to claim 4, characterized in that: The control unit is provided with a display and a manual controller. The display is used to display the distance value measured by the distance measurement module and the extension amount of the hydraulic cylinder; the manual controller is used to independently control the extension and retraction of the hydraulic cylinder.

6. The automatic adjustable pipe docking device according to claim 1 or 5, characterized in that: The movable welding assembly includes a semi-annular rack fixedly mounted on the side wall of the semi-annular bracket, a support base slidably mounted on the semi-annular rack, a driving motor fixedly mounted on the support base, a driving gear fixedly mounted on the output end of the driving motor and a cross slide fixedly mounted on the support base, the driving gear is meshedly connected with the semi-annular rack, and the welding gun is mounted on the cross slide.

7. The automatic adjustable pipe docking device according to claim 6, characterized in that: The movable welding components are arranged in two groups, and the two groups of movable welding components are arranged opposite to each other. During welding operation, the two groups of movable welding components move in the same direction.

8. The automatic adjustable pipe docking device according to claim 1 or 7, characterized in that: A clamping assembly is arranged on the end of the semi-annular bracket. When the two semi-annular brackets are closed, the clamping assembly clamps and locks the two semi-annular brackets.

9. The automatic adjustable pipe docking device according to claim 8, characterized in that: The clamping assembly is a U-shaped piece fixedly installed at the end of the semi-annular bracket. When the two semi-annular brackets are closed, one end of the semi-annular bracket is located in the U-shaped piece. A connecting hole is provided at the overlapping part of the semi-annular bracket and the U-shaped piece, and a pin is used to connect the semi-annular bracket and the U-shaped piece.

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