A pipeline all-position automatic welding actuator

Abstract

The application discloses a pipeline full-position automatic welding execution mechanism, which comprises a base, a clamping mechanism, a mounting ring, a rotating part, a guide rod, a fastener and a driving mechanism. The clamping mechanism is installed on the base and used for clamping a pipeline; the mounting ring is installed on the base; the rotating part is rotatably sleeved on the mounting ring and is provided with a guide groove and a sliding groove, the guide groove and the sliding groove extend along the radial direction of the rotating part, and the sliding groove penetrates through the wall thickness direction of the rotating part to the guide groove; the guide rod is slidably connected with the guide groove, and one end of the guide rod close to the axis of the rotating part is connected with a welding assembly; the fastener is rotatably arranged in the sliding groove and can slide along the extension direction of the sliding groove, the rod part of the fastener is screw-connected with the guide rod, and the head part of the fastener is used for locking the guide rod; and the driving mechanism is installed on the base and transmissionally connected with the rotating part, and is used for driving the rotating part to rotate around the circumference of the mounting ring relative to the mounting ring. The pipeline full-position automatic welding execution mechanism can be suitable for pipeline welding of various diameters.

Description

Technical Field

[0001] This invention relates to the field of pipeline welding equipment technology, and in particular to an automatic pipeline welding actuator in all positions. Background Technology

[0002] With the rapid development of infrastructure construction such as petrochemicals, heating networks, municipal engineering, and long-distance oil and gas pipelines, the scale and complexity of pipeline laying projects continue to increase. Pipeline circumferential welding, as a core and critical process in pipeline installation, directly determines the overall construction quality and operational safety of the pipeline project through its welding quality, operational efficiency, and stability. The all-position automatic welding actuator for pipelines is a core automated device adapted to all-around welding operations of pipeline circumferential welds. It can replace traditional manual welding methods, effectively avoiding the drawbacks of poor precision, low efficiency, and high risks associated with manual welding in high-risk conditions. With its advantages of automation, high precision, and strong stability, it is now widely used in on-site welding construction of pipelines of various diameters and is the core equipment for realizing mechanized and intelligent pipeline welding operations.

[0003] Existing automated pipe welding actuators are mostly fixed-type designs, with equipment parameters, clamping stroke, and travel adaptation dimensions set for a single or a few fixed pipe diameters, limiting the range of structural adjustments. In actual engineering construction, construction sites often have welding needs for pipes of various diameters. When dealing with pipes of different diameters, existing equipment cannot achieve adaptive adaptation. It either fails to achieve stable clamping and close-fitting travel, causing equipment displacement and shaking during welding, affecting the quality of weld formation; or it requires workers to disassemble and replace adaptation parts, recalibrate equipment parameters, and adjust the installation structure, which not only significantly increases the difficulty and time of equipment debugging but also seriously reduces the overall construction efficiency of pipe welding.

[0004] In other words, existing pipe all-position automatic welding actuators are not suitable for welding pipes of various diameters. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an automatic pipe welding actuator that is applicable to pipe welding of various diameters.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] An automatic pipe welding actuator in all positions, comprising:

[0008] Base;

[0009] A clamping mechanism is mounted on the base and is used to clamp the pipe.

[0010] Mounting ring, the mounting ring being mounted on the base;

[0011] A rotating component is rotatably fitted onto the mounting ring. The rotating component is provided with a guide groove and a sliding groove, both of which extend radially along the rotating component. The sliding groove extends through the guide groove along the wall thickness direction of the rotating component.

[0012] A guide rod is slidably connected to the guide groove, and a welding assembly is connected to one end of the guide rod near the axis of the rotating component;

[0013] A fastener, which is rotatably inserted into the groove and slidable along the extension direction of the groove, wherein the rod portion of the fastener is screwed onto the guide rod, and the head of the fastener is used to press against the side wall of the rotating member to lock the guide rod.

[0014] A drive mechanism is mounted on the base and is pulsatorically connected to the rotating member. The drive mechanism is used to drive the rotating member to rotate circumferentially around the mounting ring relative to the mounting ring.

[0015] Furthermore, the welding assembly includes a floating component, a welding torch head, a first elastic component, and a roller. The guide rod has a guide hole extending radially along the mounting ring on one side near the axis of the mounting ring, and the floating component is slidably connected to the guide hole. The welding torch head is mounted on the floating component. The first elastic component is located in the guide hole, with one end connected to the guide rod and the other end connected to the floating component, so that the floating component tends to move away from the guide rod. The roller is rotatably mounted on the floating component at one end near the axis of the mounting ring, and the roller is used to roll along the outer wall of the pipe.

[0016] Furthermore, the rotating component is a worm gear.

[0017] Furthermore, the base is provided with a mounting part, and the drive mechanism includes:

[0018] The worm gear is rotatably connected to the base and is also connected to the rotating component via a transmission mechanism.

[0019] A drive motor, which is mounted on the mounting portion;

[0020] A first bevel gear is connected to the worm gear via a transmission.

[0021] The second bevel gear is connected to the output end of the drive motor and meshes with the first bevel gear.

[0022] Furthermore, the clamping mechanism includes:

[0023] Mounting bracket, which is mounted on the base, has a through hole for a pipe, which is coaxially arranged with the mounting ring;

[0024] Multiple clamping plates are located within the through-hole and are spaced apart circumferentially along the through-hole. Each clamping plate is provided with a guide post, which is movably inserted through the mounting frame and extends radially along the through-hole. The sidewall of the guide post is provided with a guide protrusion.

[0025] A toothed ring is rotatably fitted onto the mounting bracket. The toothed ring has multiple guide grooves that are spaced apart circumferentially along the toothed ring. Multiple guide protrusions are slidably connected to the corresponding guide grooves. The guide grooves extend radially from the inside to the outside along the toothed ring, and the extension trajectory is arc-shaped. The guide grooves are used to convert the rotational motion of the toothed ring into the radial movement of the guide post along the through hole.

[0026] A drive assembly that is drive-connected to the gear ring.

[0027] Furthermore, the drive mechanism can be driveably connected to the drive assembly.

[0028] Furthermore, the driving component includes:

[0029] A pivot shaft, which is rotatably mounted on the base;

[0030] A drive gear is connected to the rotating shaft, and the drive gear meshes with the gear ring.

[0031] A third bevel gear is connected to the rotating shaft via a transmission.

[0032] The second bevel gear can switch between meshing with the third bevel gear and the first bevel gear; the shaft is equipped with a backstop assembly, which can maintain or unlock the clamping state of the clamping mechanism.

[0033] Furthermore, the mounting portion is provided with a receiving cavity, a guide groove, and a locking mechanism. The guide groove is located on the outer side wall of the mounting portion and extends in a direction close to the third bevel gear. The guide groove communicates with the receiving cavity.

[0034] The accommodating cavity contains a movable plate, the drive motor is mounted on the movable plate and located inside the accommodating cavity, and the side wall of the movable plate is provided with a gripping rod, which is slidably inserted through the guide groove;

[0035] The locking mechanism is used to restrict the grip rod to a first state and a second state;

[0036] When the grip lever is in the first state, the second bevel gear and the third bevel gear mesh with each other; when the grip lever is in the second state, the second bevel gear and the first bevel gear mesh with each other.

[0037] Furthermore, the base is provided with a mounting seat, and the first bevel gear can slide along the axial direction of the worm;

[0038] The drive mechanism further includes an adjusting member and a second elastic member. The adjusting member is rotatably sleeved on the outer wall of the worm and screwed onto the mounting base. One end of the adjusting member abuts against the first bevel gear, and the other end of the adjusting member is provided with a rotating structure. When the gripping rod is in the second state, the adjusting member can push the first bevel gear to mesh with the second bevel gear. The second elastic member is sleeved on the outside of the worm. One end of the second elastic member abuts against the end of the first bevel gear away from the adjusting member, and the other end of the second elastic member abuts against the worm, so that the first bevel gear tends to disengage from the second bevel gear.

[0039] Furthermore, the anti-reverse component includes:

[0040] A bracket is mounted on the base, the bracket has a cavity, and a rotating shaft is rotatably inserted through the bracket, with at least a portion of the rotating shaft located within the cavity;

[0041] A ratchet, which is fixedly sleeved on the outer wall of the rotating shaft and located within the cavity;

[0042] A backstop is provided, which is located inside the cavity and hinged to the side wall of the cavity, and the backstop portion of the backstop can abut against the ratchet.

[0043] A third elastic element is located within the cavity. One end of the third elastic element is connected to the anti-reverse element, and the other end is connected to the side wall of the cavity, so that the anti-reverse part tends to approach the ratchet.

[0044] A rotating rod is rotatably inserted through the bracket, and a rotating part is provided at one end of the rotating rod located on the outside of the bracket;

[0045] An eccentric wheel is fixedly sleeved on the outer side wall of the rotating rod. The outer circumference of the eccentric wheel abuts against the anti-reverse part. The eccentric wheel is used to push the anti-reverse part away from the ratchet.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0047] 1. A clamping mechanism is mounted on a base to clamp the pipe. A mounting ring is also mounted on the base. A rotating component is rotatably fitted onto the mounting ring. The rotating component has a guide groove and a sliding groove, both extending radially along the rotating component. The sliding groove extends through the guide groove along the wall thickness of the rotating component. A guide rod is slidably connected to the guide groove, and a welding assembly is connected to the end of the guide rod near the axis of the rotating component. Because the clamping mechanism fixes the pipe to the base, and the mounting ring remains stationary, the rotating component can rotate freely around the mounting ring. Therefore, the entire actuator establishes a stable rotational coordinate system with the pipe axis as the reference. Furthermore, since the guide rod can slide freely radially within the guide groove, the welding assembly connected to the inner end of the guide rod can extend and retract radially along the pipe, thus adapting to pipes of different diameters.

[0048] 2. Based on the fastener's rotatable insertion into the slide groove and its ability to slide along the groove's extension direction, the fastener's shank is screwed onto the guide rod, while its head presses against the sidewall of the rotating component to lock the guide rod. Since the fastener passes through the slide groove and slides radially synchronously with the guide rod, once the guide rod has moved to a radial position suitable for a specific pipe diameter, the operator only needs to rotate the fastener to press its head against the sidewall of the rotating component, reliably locking the guide rod at that radial position. This ensures that the distance between the welding assembly and the pipe surface remains constant during welding. When switching to a pipe of a different diameter, simply loosening the fastener unlocks the guide rod, readjusting the radial extension, and then locking it again improves welding efficiency.

[0049] 3. Based on the drive mechanism mounted on the base and connected to the rotating component via transmission, the drive mechanism drives the rotating component to rotate circumferentially around the mounting ring. Since the drive mechanism is mounted on a fixed base, and the rotating component can rotate freely relative to the fixed mounting ring, the power output of the drive mechanism can drive the rotating component, its guide rod, and welding assembly to rotate in all positions around the pipe axis. Regardless of changes in pipe diameter, the rotation axis of the rotating component always remains consistent with the pipe axis, and the distance between the welding assembly and the pipe surface remains constant as the welding assembly moves circumferentially along the pipe, reducing the impact of pipe diameter changes on welding quality and achieving automated welding. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of an automatic pipe welding actuator according to the present invention;

[0051] Figure 2 This is a structural schematic diagram from another perspective of the present invention, in which the welding components are hidden;

[0052] Figure 3 This is a cross-sectional view of the present invention;

[0053] Figure 4 for Figure 1Enlarged view of point A;

[0054] Figure 5 for Figure 2 Enlarged view of point B;

[0055] Figure 6 for Figure 3 Enlarged view of point C;

[0056] Figure 7 This is a schematic diagram of the welding assembly of the present invention;

[0057] Figure 8 This is a cross-sectional view of the anti-reverse component of the present invention.

[0058] In the diagram: 1. Base; 101. Mounting part; 1011. Receiving cavity; 1012. Guide groove; 1013. Locking mechanism; 102. Mounting seat; 2. Clamping mechanism; 201. Mounting bracket; 2011. Through hole; 202. Clamping plate; 2021. Guide post; 20211. Guide protrusion; 203. Gear ring; 2031. Guide groove; 3. Mounting ring; 4. Rotating component; 401. Guide groove; 402. Sliding groove; 5. Guide rod; 501. Guide hole; 6. Welding assembly; 601. Floating component; 602. Welding gun head; 603. First elastic component; 604. Roller; 7. Fastener; 8. Drive Mechanism; 801, worm gear; 802, drive motor; 803, first bevel gear; 804, second bevel gear; 805, adjusting component; 8051, rotating structure; 806, second elastic component; 9, drive assembly; 901, rotating shaft; 902, drive gear; 903, third bevel gear; 10, anti-reverse assembly; 1001, bracket; 10011, chamber; 1002, ratchet; 1003, anti-reverse component; 10031, anti-reverse part; 1004, third elastic component; 1005, rotating rod; 10051, rotating part; 1006, eccentric wheel; 11, moving plate; 1101, gripping rod. Detailed Implementation

[0059] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0060] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] See Figures 1-8 The present invention illustrates a preferred embodiment of an automatic pipe welding actuator, comprising: a base 1, a clamping mechanism 2, a mounting ring 3, a rotating component 4, a guide rod 5, a fastener 7, and a driving mechanism 8.

[0063] Base 1 serves as the supporting foundation for the entire actuator, providing a stable mounting platform for the remaining components. Base 1 can withstand the reaction forces and vibrations during the welding process, ensuring the structural stability of the actuator during welding in all positions on the pipeline.

[0064] Clamping mechanism 2 is mounted on base 1 and is used to clamp the pipeline. Clamping mechanism 2 can be fixed to base 1 by bolts or welding to ensure that the actuator maintains a relatively fixed position relative to the pipeline during all-position welding, preventing welding quality defects caused by slippage or displacement of the actuator. Clamping mechanism 2 can be used manually or automatically. Automatic clamping can use pneumatic jaws or hydraulic chucks, with a cylinder driving the jaws to grip the pipeline, achieving rapid and automatic centering and clamping.

[0065] Mounting ring 3 is installed on base 1. Mounting ring 3 can be fixedly installed on base 1 by bolts or welding, etc., to provide a support base for rotating part 4, so that rotating part 4 can rotate smoothly around the axis of mounting ring 3. Mounting ring 3 bears the gravity load of rotating part 4 and welding assembly 6, and maintains the coaxiality of rotating part 4 with pipeline axis, ensuring that welding assembly 6 maintains a constant distance and angle with weld when rotating around pipeline.

[0066] The rotating component 4 is rotatably fitted onto the mounting ring 3. The rotating component 4 has a guide groove 401 and a sliding groove 402, both extending radially along the rotating component 4. The sliding groove 402 extends through the guide groove 401 along the wall thickness direction of the rotating component 4. The rotating component 4 is an annular member, its inner ring slidingly engaging with the outer ring of the mounting ring 3 or engaging via bearings, and can rotate freely around the axis of the mounting ring 3. The guide groove 401 is a through groove or blind groove extending radially along the rotating component 4, with a rectangular, T-shaped, or dovetail-shaped cross-section, used to accommodate and guide the guide rod 5 to slide radially. The sliding groove 402 is located on the side wall of the guide groove 401, extending in the same direction as the guide groove 401, and is used for the fastener 7 to pass through and slide.

[0067] The guide rod 5 is slidably connected to the guide groove 401. The cross-section of the guide rod 5 matches that of the guide groove 401. The guide rod 5 can move closer to or further away from the pipe along the extension direction of the guide groove 401. The end of the guide rod 5 closest to the axis of the rotating component 4 is connected to the welding assembly 6. The guide rod 5 can drive the welding assembly 6 to move radially along the pipe groove 402 to adapt to the welding requirements of different pipe diameters. At the same time, it provides a stable installation base for the welding assembly 6, ensuring that the posture and distance of the welding torch relative to the pipe remain constant during the welding process. The rotating component 4, as the rotating carrier of the welding assembly 6, can rotate around the pipe axis, enabling the welding assembly 6 to perform continuous or step-by-step welding along the circumference of the pipe, thereby realizing all-position welding of the pipe.

[0068] Fastener 7 is rotatably inserted into the slide groove 402 and can slide along the extension direction of the slide groove 402. The rod of fastener 7 is screwed onto the guide rod 5, and the head of fastener 7 is used to press against the side wall of the rotating part 4 to lock the guide rod 5. After the guide rod 5 is adjusted to the required radial position, it is reliably locked to prevent the welding position from shifting due to vibration or gravity during welding. At the same time, when adjustment is needed, it can be unlocked simply by loosening fastener 7. This quick locking and unlocking of guide rod 5 improves the stability of the welding torch position during welding and increases the operational efficiency when switching pipe diameters or adjusting weld layers. Fastener 7 can be a bolt or screw, with external threads on its rod that screw into the corresponding internal threaded hole on the guide rod 5. The head of fastener 7 (such as a hexagonal head, wing head, or knurled head) is located on the outside of the rotating part 4, making it easy for the operator to tighten with tools or by hand. The groove 402 is an elongated hole extending radially, with a width greater than the diameter of the rod portion of the fastener 7 but smaller than the diameter of the head of the fastener 7. This allows the fastener 7 to slide freely radially within the groove 402 without its head passing through it. When the fastener 7 is tightened, the head of the fastener 7 presses against the side wall of the rotating member 4, locking the guide rod 5 in its current radial position through friction.

[0069] The drive mechanism 8 is mounted on the base 1 and is connected to the rotating component 4 via a transmission connection. The drive mechanism 8 drives the rotating component 4 to rotate circumferentially around the mounting ring 3 relative to the mounting ring 3, transmitting driving force to the rotating component 4 so that it rotates uniformly or at varying speeds around the pipeline at a set speed and torque. This drives the welding assembly 6 to move along the weld seam trajectory, completing the all-position welding of the pipeline. A stepper motor, servo motor, or DC geared motor can be used, with its output shaft connected to a reducer. A drive gear is installed at the output end of the reducer. The outer ring of the rotating component 4 is provided with a gear ring that meshes with the drive gear. When the motor is powered on and rotates, the drive gear drives the gear ring to rotate the rotating component 4 around the axis of the mounting ring 3.

[0070] In operation, the pipe to be welded is first fixed to the base 1 using the clamping mechanism 2, ensuring that the axis of the mounting ring 3 coincides with the axis of the pipe. This ensures that the actuator establishes a stable welding coordinate system with the pipe itself as the reference, and the base 1 and mounting ring 3 remain stationary throughout the welding process. Based on the diameter of the pipe and the weld location, the operator radially pushes the guide rod 5 along the guide groove 401 of the rotating component 4, moving the welding assembly 6 connected to the inner end of the guide rod 5 to the set distance from the weld location on the pipe surface. After the guide rod 5 is in position, the fastener 7 is rotated so that its head presses against the side wall of the rotating component 4, locking the guide rod 5 in its current radial position through friction. Next, the drive mechanism 8 is activated, causing the rotating component 4 to drive the guide rod 5 and the welding assembly 6 at its inner end to move uniformly along the circumference of the pipe, achieving all-position welding. After welding is completed, the drive mechanism 8 is stopped, the fastener 7 is loosened, the guide rod 5 is retracted, and the fastener 7 is tightened again. Finally, the welded pipe is removed from the clamping mechanism 2.

[0071] The clamping mechanism 2 is mounted on the base 1 and is used to clamp the pipe. The mounting ring 3 is also mounted on the base 1. A rotating component 4 is rotatably fitted onto the mounting ring 3. The rotating component 4 has a guide groove 401 and a sliding groove 402, both extending radially along the rotating component 4. The sliding groove 402 extends through the guide groove 401 along the wall thickness direction of the rotating component 4. A guide rod 5 is slidably connected to the guide groove 401, and a welding assembly 6 is connected to one end of the guide rod 5 near the axis of the rotating component 4. Because the clamping mechanism 2 fixes the pipe to the base 1, and the mounting ring 3 remains stationary, the rotating component 4 can rotate freely around the mounting ring 3. Therefore, the entire actuator establishes a stable rotational coordinate system with the pipe axis as the reference. Furthermore, because the guide rod 5 can slide freely radially within the guide groove 401 along the rotating component 4, the welding assembly 6 connected to the inner end of the guide rod 5 can extend and retract radially along the pipe, thus adapting to pipes of different diameters.

[0072] The fastener 7 is rotatably inserted into the groove 402 and can slide along the extension direction of the groove 402. The rod of the fastener 7 is screwed onto the guide rod 5, and the head of the fastener 7 is used to press against the side wall of the rotating part 4 to lock the guide rod 5. Since the fastener 7 is inserted into the groove 402 and can slide radially synchronously with the guide rod 5 along the groove 402, when the guide rod 5 moves to a radial position suitable for a certain pipe diameter, the operator only needs to rotate the fastener 7 so that its head presses against the side wall of the rotating part 4 to reliably lock the guide rod 5 at that radial position, thereby ensuring that the distance between the welding assembly 6 and the pipe surface remains constant during the welding process. When it is necessary to switch to a pipe with a different diameter, the guide rod 5 can be unlocked by simply loosening the fastener 7, and then locked again after readjusting the radial extension, thus improving welding efficiency.

[0073] The drive mechanism 8 is mounted on the base 1 and connected to the rotating component 4 via a transmission. The drive mechanism 8 drives the rotating component 4 to rotate circumferentially around the mounting ring 3 relative to the mounting ring 3. Since the drive mechanism 8 is mounted on the fixed base 1, and the rotating component 4 can rotate freely relative to the fixed mounting ring 3, the power output by the drive mechanism 8 can drive the rotating component 4, its guide rod 5, and welding assembly 6 to perform full-position rotational motion around the pipe axis. Regardless of changes in pipe diameter, the rotation axis of the rotating component 4 always remains consistent with the pipe axis, and the distance between the welding assembly 6 and the pipe surface remains constant as it moves circumferentially along the pipe, reducing the impact of pipe diameter changes on welding quality and achieving automatic welding.

[0074] See Figure 1 , Figure 5 and Figure 7 Preferably, the welding assembly 6 includes a floating element 601, a welding torch head 602, a first elastic element 603, and a roller 604. The mounting ring 3 is an annular component, which can be made of steel or aluminum alloy. The axis of the mounting ring 3 should coincide with the axis of the pipe clamped by the clamping mechanism 2 during installation. The guide rod 5 has a guide hole 501 extending radially along the mounting ring 3 on one side near the axis of the guide rod 5. The floating element 601 is slidably connected to the guide hole 501. The floating element 601 is a columnar or block-shaped component, slidably fitted into the guide hole 501 at the inner end of the guide rod 5. The axis of the guide hole 501 extends radially along the mounting ring 3, consistent with the sliding direction of the guide rod 5. The welding torch head 602 can be fixedly mounted on the floating member 601. The first elastic member 603 is located inside the guide hole 501. One end of the first elastic member 603 is connected to the guide rod 5, and the other end is connected to the floating member 601, so that the floating member 601 tends to move away from the guide rod 5. The first elastic member 603 can be a helical spring or a disc spring. The roller 604 is rotatably mounted on the floating member 601 at one end near the axis of the mounting ring 3. The roller 604 is used to roll along the outer wall of the pipe. There can be two or more rollers 604, which are distributed at intervals along the axial direction of the rotating member 4 to increase the contact stability with the pipe. When there is a local bulge on the outer wall of the pipe, the roller 604 is lifted, which drives the floating member 601 away from the pipe, thereby maintaining contact with the uneven surface of the pipe. When the welding gun head 602 is in the working position, the first elastic element 603 is in a compressed state, and the continuous application of elastic force pushes the floating element 601 towards the pipe, so that the roller 604 is pressed against the outer wall of the pipe with appropriate pressure, thereby improving the adaptability to uneven pipe surfaces.

[0075] See Figures 1-3Preferably, the rotating component 4 is a worm gear. The worm gear meshes with the worm 801 in the drive mechanism 8. When the drive mechanism 8 drives the worm 801 to rotate, the worm 801 drives the worm gear to rotate around the axis of the mounting ring 3. The worm gear drives the guide rod 5 and the welding assembly 6 on it to move circumferentially along the pipeline, completing all-position welding. The worm gear 801 transmission has the characteristics of large transmission ratio, compact structure, smooth operation, and low noise. Moreover, the worm gear 801 pair has a self-locking function. When the drive mechanism 8 stops, the rotating component 4 can be automatically locked in the current position without the need for an additional braking device, preventing the rotating component 4 from rotating accidentally due to gravity or vibration during the welding process. The inner ring of the worm gear is rotatably engaged with the mounting ring 3 through a sliding bearing or rolling bearing, and the outer ring is provided with gear teeth that mesh with the worm 801.

[0076] See Figure 3 and Figure 6 Preferably, the base 1 is provided with a mounting part 101, which can be a boss or a bracket 1001 structure, for fixing the drive motor 802. The drive mechanism 8 includes: a worm gear 801, which is rotatably connected to the base 1 and drives the rotating component 4; the worm gear 801 is rotatably mounted on the base 1 through a bearing seat, its axis is perpendicular to the axis of the worm wheel, and the helical teeth of the worm gear 801 mesh with the teeth of the worm wheel. The drive motor 802 is mounted on the mounting part 101; the drive motor 802 can be a stepper motor, a servo motor, or a DC geared motor, and its base can be fixedly mounted on the mounting part 101 by bolts.

[0077] A first bevel gear 803 is connected to a worm gear 801; a second bevel gear 804 is connected to the output end of a drive motor 802 and meshes with the first bevel gear 803. The first bevel gear 803 is fixedly mounted on the end of the worm gear 801 and is coaxial with the worm gear 801. The second bevel gear 804 is fixedly mounted on the output shaft of the drive motor 802 and meshes with the first bevel gear 803. The gear ratio of the first bevel gear 803 and the second bevel gear 804 can be designed according to the required transmission ratio. The power transmission direction of the drive motor 802 is directed through the bevel gear pair and transmitted to the worm gear 801, which then drives the worm wheel 4, which acts as a rotating component, to rotate, forming a compact transmission link. This allows for a reasonable layout of the drive motor 802 within the limited space of the base 1. At the same time, the worm gear 801 pair provides a large reduction ratio and self-locking characteristics, enabling the drive motor 802 to be selected as a model with higher speed and smaller size, thereby reducing cost and space occupation.

[0078] As an alternative configuration, the bevel gear drive can be replaced by the worm gear 801 being directly connected to the motor output shaft via a coupling, eliminating the bevel gear pair, but the motor needs to be arranged axially along the worm gear 801; the drive mechanism 8 can be driven by a pneumatic motor, suitable for explosion-proof or high-temperature environments; the drive mechanism 8 can be driven by a synchronous belt drive, driving the rotating part 4 to rotate through the synchronous belt pulley, which has the advantages of smooth transmission and low noise; the drive mechanism 8 can be driven by a friction wheel, transmitting power through the friction between the friction wheel and the outer ring of the rotating part 4, which has a simple structure and overload protection function; the drive mechanism 8 can be equipped with a manual crank, which can drive the rotating part 4 to rotate by hand during power failure or debugging; the drive mechanism 8 can be equipped with a brake, which can quickly brake the rotating part 4 after welding or in case of emergency stop.

[0079] See Figures 1-3 Preferably, the clamping mechanism 2 includes: a mounting frame 201, which is mounted on the base 1 and has a through hole 2011 coaxially with the mounting ring 3; multiple clamping plates 202, which are all located inside the through hole 2011 and are spaced apart circumferentially along the through hole 2011; each clamping plate 202 has a guide post 2021, which is movably inserted through the mounting frame 201 and extends radially along the through hole 2011; the guide post 2021 can be located on the side of the clamping plate 202 away from the axis of the through hole 2011, extends in a direction away from the axis of the through hole 2011, and passes through the through hole on the mounting frame 201, so that the guide post 2021 can slide along the through hole and the cross-sectional shape is consistent with the shape of the through hole. The side wall of the guide post 2021 is provided with a guide protrusion 20211; multiple clamping plates 202 are used to clamp the pipe, and the inner side of the clamping plate 202 can be provided with anti-slip rubber pads or copper pads to protect the pipe surface and increase friction.

[0080] A toothed ring 203 is rotatably fitted onto a mounting bracket 201, and can rotate freely around the axis of the mounting bracket 201. The toothed ring 203 has multiple guide grooves 2031, which are spaced apart circumferentially along the ring. Multiple guide protrusions 20211 are slidably connected to their corresponding guide grooves 2031. These protrusions can be cylindrical pins or rollers, extending outward from the sidewall of the guide post 2021 and embedding into the guide grooves 2031 of the toothed ring 203. The guide grooves 2031 extend radially from the inside to the outside of the toothed ring 203, with an arc-shaped extension trajectory. These grooves convert the rotational motion of the toothed ring 203 into radial movement of the guide post 2021 along the through-hole 2011. By rotating the toothed ring 203, multiple clamping plates 202 move radially synchronously, achieving rapid and automatic centering and clamping of pipes of different diameters. The design of the arc-shaped guide groove 2031 makes the rotation angle of the toothed ring 203 and the radial displacement of the clamping plate 202 non-linear, which can provide a greater clamping force when approaching the clamping position.

[0081] Drive assembly 9 is connected to gear ring 203. Drive assembly 9 can be manually driven (e.g., by a handle or handwheel) or electrically driven (e.g., by a motor and gears) to drive the gear ring 203 to rotate. When drive assembly 9 drives gear ring 203 to rotate, the arc-shaped guide groove 2031 on gear ring 203 pushes the guide protrusion 20211 on guide post 2021 to move radially, causing all clamping plates 202 to move synchronously centrifugally or centrifugally, so that the pipe is automatically centered and clamped or released. This improves the clamping efficiency and positioning accuracy of the pipe.

[0082] See Figures 1-3 Preferably, the drive mechanism 8 is driveably connected to the drive assembly 9. This allows the drive mechanism 8 to simultaneously power the rotation of the rotating part 4 and the clamping action of the clamping mechanism 2, eliminating the need for a separate power source for the clamping mechanism 2. The power output end of the drive mechanism 8 can be selectively connected to the drive assembly 9 of the clamping mechanism 2 via a transmission switching device (such as a clutch, reversing gear, or sliding gear). When it is necessary to clamp or release the pipe, the operator can switch the transmission path to transmit the power of the drive mechanism 8 to the drive assembly 9, which drives the gear ring 203 to rotate, achieving radial clamping or releasing of the clamping plate 202. After clamping is completed, the transmission path is switched to transmit the power of the drive mechanism 8 to the rotating part 4, driving the rotating part 4 to rotate for welding operations. This improves the integration of the equipment.

[0083] See Figures 1-3 Preferably, the drive assembly 9 includes: a rotating shaft 901 rotatably mounted on the base 1; a drive gear 902 drivingly connected to the rotating shaft 901, and meshing with a gear ring 203; a third bevel gear 903 drivingly connected to the rotating shaft 901; and a second bevel gear 804 capable of switching meshing between the third bevel gear 903 and the first bevel gear 803. The rotating shaft 901 can be mounted on the base 1 via bearings, the drive gear 902 is fixed to one end of the rotating shaft 901 and meshes with the gear ring 203, and torque can be transmitted between the drive gear 902 and the rotating shaft 901 via a key connection. The third bevel gear 903 is fixed to the other end of the rotating shaft 901 and is fixed to the rotating shaft 901 via a key connection.

[0084] A backstop assembly 10 is installed on the rotating shaft 901, which can maintain or unlock the clamping state of the clamping mechanism 2. The backstop assembly 10 can be an electromagnetic brake, which locks the rotating shaft 901 when power is off and releases it when power is on. When the second bevel gear 804 meshes with the third bevel gear 903, the drive motor 802 drives the gear ring 203 to rotate through the second bevel gear 804, the third bevel gear 903, the rotating shaft 901, and the drive gear 902. The gear ring 203 drives the clamping plate 202 to move radially through the guide groove 2031 to clamp the pipe. After clamping is completed, the backstop assembly 10 locks the rotating shaft 901, keeping the position of the gear ring 203 unchanged, thereby maintaining the clamping force. Then, the second bevel gear 804 is switched to mesh with the first bevel gear 803, and the drive motor 802 drives the worm gear to rotate through the first bevel gear 803 and the worm 801 to perform welding operations.

[0085] See Figure 6 Preferably, the mounting portion 101 is provided with a receiving cavity 1011, a guide groove 1012, and a locking mechanism 1013. The guide groove 1012 is located on the outer side wall of the mounting portion 101 and extends in a direction close to the third bevel gear 903. The guide groove 1012 communicates with the receiving cavity 1011. The receiving cavity 1011 is a cavity inside the mounting portion 101, and its shape matches the moving plate 11, providing sliding space and guidance for the moving plate 11. The extending direction of the guide groove 1012 is consistent with the sliding direction of the moving plate 11. The accommodating cavity 1011 contains a movable plate 11. A drive motor 802 is mounted on the movable plate 11 and located within the accommodating cavity 1011. A gripping rod 1101 is provided on the side wall of the movable plate 11, and the gripping rod 1101 slidably passes through the guide groove 1012. The movable plate 11 is fixedly connected to the drive motor 802 by bolts. The output shaft of the drive motor 802 extends to the outer end of the accommodating cavity 1011, and the second bevel gear 804 is fixed to the output shaft by a key connection. The gripping rod 1101 extends outward from the mounting portion 101 and passes through the guide groove 1012 to the outside of the mounting portion 101.

[0086] The locking mechanism 1013 is used to restrict the gripping rod 1101 to a first state and a second state. The locking mechanism 1013 can be in the form of elastic ball bearings and positioning recesses. Positioning recesses are set at corresponding positions at both ends of the guide groove 1012, and elastic ball bearings are set on the gripping rod 1101 or the moving plate 11. When it moves to the first or second state, the ball bearings are engaged in the recesses to achieve positioning. Alternatively, a pin-type structure can be used, in which a pin is inserted to fix the gripping rod 1101 when it reaches the corresponding position. The locking mechanism 1013 ensures that the rotating shaft 901 will not reverse after clamping, and the clamping force is maintained, preventing the pipe from accidentally loosening during pipe welding and improving the safety of the device.

[0087] When the grip lever 1101 is in the first state, the second bevel gear 804 meshes with the third bevel gear 903; when the grip lever 1101 is in the second state, the second bevel gear 804 meshes with the first bevel gear 803. The operator moves the grip lever 1101 along the guide groove 1012, causing the moving plate 11 and the drive motor 802 and the second bevel gear 804 mounted on it to move, thus enabling the second bevel gear 804 to mesh with either the first bevel gear 803 or the third bevel gear 903, thereby switching between the two working modes.

[0088] See Figure 6 Preferably, the base 1 is provided with a mounting seat 102, and the first bevel gear 803 can slide along the axial direction of the worm 801; the mounting seat 102 is fixed on the base 1 and is used to mount the worm 801 and the adjusting member 805. The first bevel gear 803 and the worm 801 can be connected by a spline, so that the first bevel gear 803 can slide along the axial direction of the worm 801 to approach or move away from the second bevel gear 804, while still being able to rotate synchronously with the worm 801 to transmit power.

[0089] The drive mechanism 8 also includes an adjusting member 805 and a second elastic member 806. The adjusting member 805 is rotatably sleeved on the outer wall of the worm gear 801 and screwed onto the mounting base 102. One end of the adjusting member 805 abuts against the first bevel gear 803, and the other end of the adjusting member 805 is provided with a rotating structure 8051. When the gripping rod 1101 is in the second state, the adjusting member 805 can push the first bevel gear 803 to mesh with the second bevel gear 804. The adjusting member 805 can be a hollow bolt or a threaded sleeve, with its inner hole sleeved on the outside of the worm gear 801 and its external thread screwed onto the internal thread of the mounting base 102. One end of the adjusting member 805 abuts against the end face of the first bevel gear 803, and the other end is provided with a rotating structure 8051. The rotating structure 8051 can be a handwheel, a hexagonal head, or a knurled handle, making it easy for the operator to rotate by hand or with tools.

[0090] The second elastic element 806 is sleeved on the outside of the worm 801. One end of the second elastic element 806 abuts against the end of the first bevel gear 803 away from the adjusting element 805, and the other end of the second elastic element 806 abuts against the worm 801, so that the first bevel gear 803 has a tendency to disengage from the second bevel gear 804. The second elastic element 806 can be a compression spring, with one end abutting against the end of the first bevel gear 803 away from the adjusting member 805, and the other end abutting against the shoulder or limiting ring on the worm gear 801. When the second bevel gear 804 meshes with the first bevel gear 803, the second elastic element 806 is in a compressed state, continuously applying elastic force to push the first bevel gear 803 towards the adjusting member 805, causing the adjusting member 805 to rotate away from the first bevel gear 803. Under the action of the second elastic element 806, the first bevel gear 803 disengages from the second bevel gear 804, and the position of the first bevel gear 803 does not affect the meshing of the second bevel gear 804 with the third bevel gear 903. The operator rotates the adjusting component 805 via its rotating structure 8051, causing the adjusting component 805 to move axially along the worm gear 801. This pushes the first bevel gear 803 to slide axially along the worm gear 801 until it engages with the second bevel gear 804, thus connecting the power transmission path. When disengagement is required, the adjusting component 805 is rotated in the opposite direction, and the second elastic element 806 automatically pushes the first bevel gear 803 away from the second bevel gear 804, achieving rapid disengagement. This achieves controllable connection of the welding power transmission path and avoids unnecessary wear caused by prolonged contact between the first bevel gear 803 and the second bevel gear 804 in a non-welding state.

[0091] See Figure 8 Preferably, the anti-reverse assembly 10 includes: a bracket 1001, which is mounted on a base 1. The bracket 1001 has a chamber 10011, and a rotating shaft 901 is rotatably inserted through the bracket 1001, with at least a portion of the rotating shaft 901 located within the chamber 10011. The bracket 1001 is fixedly mounted on the base 1 and can be connected to the base 1 by bolts. The chamber 10011 is a hollow cavity inside the bracket 1001, used to accommodate a ratchet 1002, an anti-reverse element 1003, and a third elastic element 1004. The ratchet 1002 is fixedly sleeved on the outer wall of the rotating shaft 901 and located within the chamber 10011. The rotating shaft 901 is rotatably inserted through the bracket 1001 via a bearing, and the ratchet 1002 is fixedly sleeved on the rotating shaft 901 via a key connection or a set screw, rotating synchronously with the rotating shaft 901.

[0092] A check valve 1003 is located within the chamber 10011 and hinged to the side wall of the chamber 10011. The check valve portion 10031 of the check valve 1003 can abut against the ratchet 1002. The check valve 1003 is a plate-shaped or block-shaped component, with one end hinged to the side wall of the chamber 10011 via a hinge shaft, and the other end provided with the check valve portion 10031. The shape of the check valve portion 10031 matches the tooth groove of the ratchet 1002 and can be either pointed or rounded.

[0093] The third elastic element 1004 is located inside the chamber 10011. One end of the third elastic element 1004 is connected to the anti-reverse element 1003, and the other end is connected to the side wall of the chamber 10011, so that the anti-reverse portion 10031 tends to approach the ratchet 1002. The third elastic element 1004 can be a torsion spring or a compression spring. The torsion spring is sleeved on the hinge shaft, with one end abutting against the anti-reverse element 1003 and the other end abutting against the side wall of the chamber 10011; the compression spring has one end abutting against the anti-reverse element 1003 and the other end abutting against the side wall of the chamber 10011. The third elastic element 1004 ensures that the anti-reverse portion 10031 is always in close contact with the outer periphery of the ratchet 1002 under normal conditions.

[0094] A rotating rod 1005 is rotatably inserted through a bracket 1001. One end of the rotating rod 1005 located on the outside of the bracket 1001 is provided with a rotating part 10051. The rotating rod 1005 is inserted through the bracket 1001 via a bearing, and one end of it is located on the outside of the bracket 1001 and is provided with a rotating part 10051. The rotating part 10051 can be a handle, a hexagonal head, or a wing nut, which facilitates manual rotation operation.

[0095] An eccentric wheel 1006 is fixedly sleeved on the outer wall of the rotating rod 1005. The outer circumference of the eccentric wheel 1006 abuts against the check valve 1003. The eccentric wheel 1006 is used to push the check valve 10031 out of the ratchet 1002. The eccentric wheel 1006 is fixedly sleeved on the rotating rod 1005 by a key connection or a set screw. As the rotating rod 1005 rotates, the outer circumference of the eccentric wheel 1006 abuts against the side wall of the check valve 1003. When the rotating shaft 901 rotates in the clamping direction, the ratchet 1002 rotates with the rotating shaft 901. The anti-reverse part 10031 of the anti-reverse component 1003 slides on the back of the teeth of the ratchet 1002, allowing the rotating shaft 901 to continue rotating in the clamping direction. When the rotating shaft 901 tends to reverse, the anti-reverse part 10031 engages in the tooth groove of the ratchet 1002, preventing the rotating shaft 901 from rotating in the opposite direction, thereby maintaining the clamping force. When unlocking is required, the operator rotates the rotating rod 1005, the eccentric wheel 1006 rotates and pushes the anti-reverse component 1003 to overcome the elastic force of the third elastic element 1004, causing the anti-reverse part 10031 to disengage from the ratchet 1002. At this time, the rotating shaft 901 can rotate freely in both directions, realizing unlocking. This anti-reverse component 10 has a simple structure and improves the reliability of the clamping device in clamping the pipe.

[0096] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0097] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0098] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic pipe welding actuator in all positions, characterized in that, include: Base (1); A clamping mechanism (2) is mounted on the base (1) and is used to clamp the pipe. Mounting ring (3), which is mounted on the base (1); A rotating component (4) is rotatably fitted onto the mounting ring (3). The rotating component (4) is provided with a guide groove (401) and a sliding groove (402). Both the guide groove (401) and the sliding groove (402) extend radially along the rotating component (4). The sliding groove (402) extends through the guide groove (401) along the wall thickness direction of the rotating component (4). Guide rod (5), the guide rod (5) is slidably connected to the guide groove (401), and a welding assembly (6) is connected to one end of the guide rod (5) near the axis of the rotating part (4). Fastener (7), the fastener (7) is rotatably inserted through the slide groove (402) and can slide along the extension direction of the slide groove (402), the rod part of the fastener (7) is screwed to the guide rod (5), and the head of the fastener (7) is used to press the side wall of the rotating part (4) to lock the guide rod (5). A drive mechanism (8) is mounted on the base (1) and is connected to the rotating member (4) in a transmission manner. The drive mechanism (8) is used to drive the rotating member (4) to rotate around the mounting ring (3) relative to the mounting ring (3) in the circumference.

2. The automatic pipe welding actuator according to claim 1, characterized in that, The welding assembly (6) includes a floating element (601), a welding torch (602), a first elastic element (603), and a roller (604). The guide rod (5) has a guide hole (501) extending radially along the mounting ring (3) on one side near the axis of the mounting ring (3). The floating element (601) is slidably connected to the guide hole (501). The welding torch (602) is mounted on the floating element (601). The first elastic element (603) is located in the guide hole (501). One end of the first elastic element (603) is connected to the guide rod (5), and the other end is connected to the floating element (601), so that the floating element (601) tends to move away from the guide rod (5). The roller (604) is rotatably mounted on one end of the floating element (601) near the axis of the mounting ring (3). The roller (604) is used to roll along the outer wall of the pipe.

3. The automatic pipe welding actuator according to claim 1 or 2, characterized in that, The rotating component (4) is a worm gear.

4. The automatic pipe welding actuator according to claim 3, characterized in that, The base (1) is provided with a mounting part (101), and the driving mechanism (8) includes: The worm (801) is rotatably connected to the base (1) and is drively connected to the rotating component (4). A drive motor (802) is mounted on the mounting part (101). The first bevel gear (803) is connected to the worm gear (801) in a transmission manner. The second bevel gear (804) is connected to the output end of the drive motor (802) and meshes with the first bevel gear (803).

5. The automatic pipe welding actuator according to claim 4, characterized in that, The clamping mechanism (2) includes: Mounting bracket (201), which is mounted on the base (1), and the mounting bracket (201) is provided with a through hole (2011), which is coaxially arranged with the mounting ring (3); Multiple clamping plates (202) are located within the through-hole (2011) and are spaced apart circumferentially along the through-hole (2011). Each clamping plate (202) is provided with a guide post (2021), which is movably inserted through the mounting bracket (201) and extends radially along the through-hole (2011). The sidewall of the guide post (2021) is provided with a guide protrusion (20211). A toothed ring (203) is rotatably fitted onto the mounting bracket (201). The toothed ring (203) is provided with a plurality of guide grooves (2031). The plurality of guide grooves (2031) are distributed at intervals along the circumference of the toothed ring (203). A plurality of guide protrusions (20211) are slidably connected to the corresponding guide grooves (2031). The guide grooves (2031) extend from the inside to the outside along the radial direction of the toothed ring (203), and the extension trajectory is arc-shaped. The guide grooves (2031) are used to convert the rotational motion of the toothed ring (203) into the radial movement of the guide post (2021) along the through hole (2011). The drive assembly (9) is connected to the gear ring (203) in a driving manner.

6. The automatic pipe welding actuator according to claim 5, characterized in that, The drive mechanism (8) is driveably connected to the drive assembly (9).

7. The automatic pipe welding actuator according to claim 6, characterized in that, The driving component (9) includes: A rotating shaft (901) is rotatably mounted on the base (1). A drive gear (902) is connected to the rotating shaft (901) and meshes with the gear ring (203). The third bevel gear (903) is connected to the rotating shaft (901) in a transmission manner. The second bevel gear (804) is capable of switching engagement between the third bevel gear (903) and the first bevel gear (803); the shaft (901) is equipped with a backstop assembly (10), which can maintain or unlock the clamping state of the clamping mechanism (2).

8. The automatic pipe welding actuator according to claim 7, characterized in that, The mounting part (101) is provided with a receiving cavity (1011), a guide groove (1012) and a locking mechanism (1013). The guide groove (1012) is located on the outer side wall of the mounting part (101) and extends in a direction close to the third bevel gear (903). The guide groove (1012) communicates with the receiving cavity (1011). The accommodating cavity (1011) contains a movable plate (11), the drive motor (802) is mounted on the movable plate (11) and located inside the accommodating cavity (1011), and the side wall of the movable plate (11) is provided with a gripping rod (1101), which is slidably inserted through the guide groove (1012). The locking mechanism (1013) is used to restrict the grip (1101) to a first state and a second state; When the grip (1101) is in the first state, the second bevel gear (804) and the third bevel gear (903) mesh with each other; when the grip (1101) is in the second state, the second bevel gear (804) and the first bevel gear (803) mesh with each other.

9. The automatic pipe welding actuator according to claim 8, characterized in that, The base (1) is provided with a mounting seat (102), and the first bevel gear (803) can slide along the axial direction of the worm (801); The drive mechanism (8) further includes an adjusting member (805) and a second elastic member (806). The adjusting member (805) is rotatably sleeved on the outer wall of the worm gear (801) and screwed onto the mounting base (102). One end of the adjusting member (805) abuts against the first bevel gear (803), and the other end of the adjusting member (805) is provided with a rotating structure (8051). When the gripping rod (1101) is in the second state, the adjusting member (805) can push the... The first bevel gear (803) meshes with the second bevel gear (804); the second elastic member (806) is sleeved on the outside of the worm (801), one end of the second elastic member (806) abuts against the end of the first bevel gear (803) away from the adjusting member (805), and the other end of the second elastic member (806) abuts against the worm (801), so that the first bevel gear (803) has a tendency to disengage from the second bevel gear (804).

10. The automatic pipe welding actuator according to claim 7, characterized in that, The anti-reverse component (10) includes: A bracket (1001) is mounted on the base (1). The bracket (1001) has a chamber (10011). A rotating shaft (901) is rotatably inserted through the bracket (1001), and at least a portion of the rotating shaft (901) is located within the chamber (10011). A ratchet (1002) is fixedly sleeved on the outer wall of the rotating shaft (901) and located inside the chamber (10011); A backstop (1003) is located inside the chamber (10011) and is hinged to the side wall of the chamber (10011). The backstop portion (10031) of the backstop (1003) can abut against the ratchet (1002). The third elastic element (1004) is located inside the chamber (10011). One end of the third elastic element (1004) is connected to the anti-reverse element (1003), and the other end is connected to the side wall of the chamber (10011), so that the anti-reverse part (10031) tends to approach the ratchet (1002). A rotating rod (1005) is rotatably inserted through the bracket (1001), and a rotating part (10051) is provided at one end of the rotating rod (1005) located outside the bracket (1001). An eccentric wheel (1006) is fixedly sleeved on the outer side wall of the rotating rod (1005). The outer periphery of the eccentric wheel (1006) abuts against the anti-reverse part (1003). The eccentric wheel (1006) is used to push the anti-reverse part (10031) away from the ratchet (1002).

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