Auxiliary butt joint equipment for pipeline welding

Abstract

The invention relates to the related technical field of metal welding, in particular to auxiliary butt joint equipment for pipeline welding, which comprises a base, a bearing frame, a folding module, an adjusting module, a middle bearing module, a sensing module, a welding module and a running-in module. The extrusion force between the pipelines is detected in a switching mode, flexible regulation and control are conducted according to the pressure detection result, the butt joint pressure of the pipelines is made to be in a proper range, gaps can be reduced through the proper extrusion force, the welding quality is improved, meanwhile, air holes generated in the welding process are reduced through extrusion, a better molten pool shape can be formed, and the welding quality is improved. In addition, in order to ensure uniform butt joint between the pipelines, the running-in modules are used for carrying out rotary butt joint between the pipelines, uniform attachment between planes of the pipelines is ensured, the relative positions between the pipelines can be adjusted more accurately by rotating the pipelines, non-uniform gaps on the butt joint faces can be eliminated easily, and the welding quality of the pipelines is improved. Therefore, the butt joint is tighter.

Description

Technical Field

[0001] The invention relates to the technical field related to metal welding, and in particular to auxiliary butt joint equipment for pipeline welding. Background Art

[0002] In the process of coal mining, in order to avoid dust storms caused by excessive dust concentration during mining and transportation, people use water supply and drainage devices underground in coal mines, which leads to the emergence of coal mine pipes. The types of coal mine pipes used are mainly cast iron pipes and steel pipes.

[0003] In the existing pipeline welding process, such as the Chinese patent with publication number CN221494899U, it discloses an auxiliary docking device for pipeline welding, including a base and two fixing components, the fixing components including a first fixing plate, a second fixing plate and a screw; the first fixing plate includes a first fixing portion, a first mounting portion and a guide portion; a first arc groove is provided at one end of the first fixing portion away from the base; the first mounting portion is arranged at one side of the first fixing portion, and the guide portion is arranged at a side of the first mounting portion away from the base; the second fixing plate includes a second fixing portion and a second mounting portion; a second arc groove is provided at one end of the second fixing portion close to the base; the second mounting portion is arranged at one side of the second fixing portion and is provided with a guide groove for the guide portion to slide; the screw is rotatably connected to the first mounting portion and is threadedly connected to the second mounting portion.

[0004] In the above-mentioned prior art, the fixation of the metal pipe before welding and the removal after welding are mainly achieved by setting a hand wheel, which is simple and convenient to operate. However, the above-mentioned prior art does not take into account that a certain pressure needs to be maintained when the pipes are butt-jointed before welding. The extrusion pressure should be within an appropriate range. Excessive extrusion pressure may cause material deformation, stress concentration or weld cracks, while insufficient pressure may cause problems such as loose welds and increased pores. Therefore, the butt-jointing work before welding should ensure that the pipes are at the best extrusion parameters.

[0005] Based on this, there is still room for improvement in the above-mentioned prior art. Summary of the invention

[0006] In order to place the pipes under appropriate extrusion pressure when they are butt-jointed and ensure that the planes between the pipes fit as closely as possible, the present application provides an auxiliary butt-jointing device for pipe welding.

[0007] The auxiliary butt joint equipment for pipeline welding provided in this application adopts the following technical solution:

[0008] Auxiliary docking equipment for pipeline welding includes a base, a support frame, a closing module, an adjustment module, a middle support module, a sensing module, a welding module, and a running-in module. The support frame is symmetrically arranged on the base, and the support frame supports the pipeline. The closing modules are symmetrically arranged at both ends of the base, and the closing modules close and dock the pipeline. The adjustment module is arranged on the closing module, and the adjustment module adjusts the docking pressure of the pipeline. The middle support module is arranged in the middle of the base, and the middle support module is located between the support frames. The sensing module is arranged in the middle support module, and the sensing module senses the docking pressure of the pipeline. The welding module is arranged on the front side of the middle part of the base. The running-in module is arranged in the base, and the running-in module adjusts the alignment of the planes between the pipelines.

[0009] Preferably, the closing module comprises a mounting bracket and a closing cylinder, the mounting bracket is mounted on the end of the base, and the closing cylinder is mounted on the mounting bracket.

[0010] Preferably, the adjustment module includes a cylindrical member, an electric push rod, a rotating motor, a matching member, an adjusting disk, a threaded column, a rotating disk, a trigger member, and a clamping groove. The cylindrical member is mounted on the output end of the closing cylinder, a mounting groove is provided inside the cylindrical member, the electric push rod is mounted inside the mounting groove, a base plate is mounted on the output end of the electric push rod, the base plate is slidably arranged in the mounting groove left and right, the rotating motor is mounted on the base plate through a motor seat, a matching member is mounted on the output end of the rotating motor, a threaded column is mounted on the outer end of the adjusting disk, the threaded column is arranged in the mounting groove through threaded matching, a clamping groove that is clamped and matched with the matching member is provided at the end of the threaded column, the rotating disk is rotatably arranged at the inner end of the adjusting disk, the rotating disk corresponds to the position of the pipeline, the rotating disk contacts the pipeline to squeeze the pipeline, and at the same time, during subsequent welding, the rotating disk can rotate with the pipeline, thereby avoiding the situation where the rotating disk hinders the rotation of the pipeline, and the trigger member is mounted on the outer periphery of the upper end of the adjusting disk.

[0011] Preferably, the engaging groove is a cross-shaped groove, and the end of the mating piece is provided with a cross-shaped structure engaged with the engaging groove.

[0012] Preferably, the middle bearing module includes an external mounting base, a rotating ring, a sliding ring, a clamping member, an extruding member, and a linkage member. The external mounting base is mounted on the middle part of the base, and the rotating ring is arranged inside the external mounting base through an electric turntable rotation, and the sliding ring is arranged in the rotating ring for sliding left and right movement, and a spring 1 is connected between the sliding ring and the rotating ring, and the spring acts together to reset, and the clamping member is arranged inside the sliding ring for uniform radial sliding movement, and a spring 2 is connected between the clamping member and the sliding ring, and the spring 2 acts to reset, and the extruding member is arranged on the outer side of the sliding ring for sliding left and right movement, and a spring 3 is connected between the extruding member and the sliding ring, and the spring 3 acts to reset, and the linkage member is arranged on the supporting frame for sliding left and right movement, and the two ends of the linkage member are respectively extruded with the trigger member and the extruding member, and the linkage member also acts as a certain limiting member on the pipeline, and when the pipeline tilts during rotation, the linkage member acts as a blocking and limiting member.

[0013] Preferably, the sensing module comprises a sensor, and the sensor is mounted inside the external mounting base.

[0014] Preferably, the side wall of the external mounting base is provided with a matching hole corresponding to the position of the welding module.

[0015] Preferably, the running-in module includes gear 1, a sliding frame, a telescopic rod, gear 2, belt assembly 1, a flywheel part, a docking part, and belt assembly 2. Gear 1 is installed on the outer periphery of the rotating ring, the sliding frame is symmetrically arranged on the surface of the base for sliding left and right, the upper end of the sliding frame is fixedly connected to the cylindrical part, one end of the telescopic rod is rotatably arranged on the sliding frame, and the other end of the telescopic rod is rotatably arranged in a hidden groove opened inside the base, the telescopic rod is a telescopic structure, and since the sliding frame needs to slide left and right, the telescopic structure of the telescopic rod avoids interference, gear 2 is rotatably arranged on the outer wall of the external mounting base, gear 2 and gear 1 are meshed, gear 2 and the telescopic rod are matched through belt assembly 1, the flywheel part is rotatably arranged in the mounting groove, the flywheel part and the matching part are matched through the docking part, and the flywheel part and the telescopic rod are matched through belt assembly 2.

[0016] Preferably, petal grooves are evenly opened in the middle of the flywheel component, and the outer ends of the petal grooves are provided with chamfered structures. The ends of the docking components are provided with rounded corners that are conducive to extrusion, and the docking components and the petal grooves are corrected in position after extrusion to achieve clamping.

[0017] In summary, the beneficial technical effects of this application are as follows:

[0018] The auxiliary docking equipment for pipeline welding described in the present invention performs switchable detection on the extrusion pressure between the pipelines and flexibly adjusts and controls according to the pressure detection results, so that the docking pressure of the pipelines is within an appropriate range. The appropriate extrusion pressure makes the butt surfaces of the steel pipes fit closely, reduces gaps, and improves welding quality. At the same time, extrusion can remove gas between the butt surfaces and reduce the generation of pores during welding. Appropriate pressure also helps to form a better molten pool shape, thereby improving the formation of the weld. The welded joint after extrusion often has higher strength and toughness. In addition, in order to ensure uniform docking between the pipelines, the present application performs rotational docking between the pipelines through a running-in module to ensure uniform fitting between the pipeline planes. By rotating the pipelines, the relative positions between the pipelines can be adjusted more accurately, which helps to eliminate uneven gaps on the butt surfaces, thereby making the docking tighter. Tight docking also reduces defects in the welding process, such as reducing the occurrence of pores, slag inclusions, and unfused problems, greatly improving the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0021] Figure 3 The present invention Figure 2 A local enlarged view of point A;

[0022] Figure 4 The present invention Figure 2 A partial enlarged view of point B;

[0023] Figure 5 It is a structural schematic diagram of the bearing module and the running-in module of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure among the matching piece, the threaded column, the flywheel piece and the clamping groove of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure among the matching piece, the docking piece, the flywheel piece and the petal groove of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure among the rotating ring, the extrusion part, the linkage part and the gear one of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure among the sliding ring, the clamping part and the extrusion part of the present invention.

[0028] Explanation of the accompanying drawings: 1. base; 2. supporting bracket; 3. closing module; 4. adjustment module; 5. middle supporting module; 6. induction module; 7. welding module; 8. running-in module; 31. mounting bracket; 32. closing cylinder; 41. cylindrical member; 42. electric push rod; 43. rotating motor; 44. matching member; 45. adjusting disk; 46. threaded column; 47. rotating disk; 48. trigger member; 461. snap-in groove; 51. external mounting base; 52. rotating ring; 53. sliding ring; 54. clamping member; 55. extrusion member; 56. linkage member; 61. sensor; 81. gear one; 82. sliding frame; 83. telescopic rod; 84. gear two; 85. belt assembly one; 86. flywheel member; 87. docking member; 88. belt assembly two; 861. petal groove. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 9 This application is described in further detail.

[0030] The embodiment of the present application discloses an auxiliary butt joint device for pipeline welding, which accurately measures the pressure during pipeline butt joint by conversion and flexibly adjusts the butt joint pressure of the pipeline to be uniform and reliable.

[0031] Reference Figure 1 , Figure 2 As shown, the auxiliary docking equipment for pipeline welding includes a base 1, a support frame 2, a closing module 3, an adjustment module 4, a middle support module 5, a sensing module 6, a welding module 7, and a running-in module 8. The support frame 2 is symmetrically arranged on the base 1, and the support frame 2 supports the pipeline. The closing modules 3 are symmetrically arranged at both ends of the base 1, and the closing modules 3 close and dock the pipeline. The adjustment module 4 is arranged on the closing module 3, and the adjustment module 4 adjusts the docking pressure of the pipeline. The middle support module 5 is arranged in the middle of the base 1, and the middle support module 5 is located between the support frames 2. The sensing module 6 is arranged in the middle support module 5, and the sensing module 6 senses the docking pressure of the pipeline. The welding module 7 is arranged on the front side of the middle part of the base 1. The running-in module 8 is arranged in the base 1, and the running-in module 8 adjusts the alignment of the planes between the pipelines.

[0032] During the actual welding process, the pipeline is placed on the support frame 2, and then the closing module 3 pushes the pipeline to close and dock. When closing, the closing module 3 converts the docking pressure between the pipelines through the middle support module 5, so as to facilitate the sensing module 6 to sense the docking pressure. If the pressure is qualified, the running-in module 8 controls the pipeline to rotate successively, so as to level and align the contact surface to ensure that the pressure at each position between the pipelines is in a suitable range. If the pressure is unqualified, the adjustment module 4 fine-tunes the pressure to adjust the docking pressure to a suitable range. The adjustment module 4, the running-in module 8, and the sensing module 6 cooperate with each other to ensure that the docking surfaces of the pipelines are in a suitable docking pressure range. After the docking is completed, the welding module 7 performs welding. The present application converts the docking pressure between the pipelines to facilitate measurement, and rotates the pipeline to detect multiple positions, so as to flexibly adjust the docking pressure according to the measurement results to ensure that the docking pressure of the docking plane of the pipeline is uniform.

[0033] Reference Figure 2 As shown, the closing module 3 includes a mounting bracket 31 and a closing cylinder 32 . The mounting bracket 31 is mounted on the end of the base 1 , and the closing cylinder 32 is mounted on the mounting bracket 31 .

[0034] Reference Figure 3 , Figure 6 As shown, the regulating module 4 includes a cylindrical member 41, an electric push rod 42, a rotating motor 43, a matching member 44, an adjusting disk 45, a threaded column 46, a rotating disk 47, a trigger member 48, and a clamping groove 461. The cylindrical member 41 is installed on the output end of the closing cylinder 32, and a mounting groove is provided inside the cylindrical member 41. The electric push rod 42 is installed inside the mounting groove. A base plate is installed on the output end of the electric push rod 42, and the base plate is slidably arranged in the mounting groove left and right. The rotating motor 43 is installed on the base plate through a motor seat, and a matching member is installed on the output end of the rotating motor 43. Part 44, a threaded column 46 is installed at the outer end of the adjusting disk 45, and the threaded column 46 is arranged in the installation groove through threaded cooperation. The end of the threaded column 46 is provided with a clamping groove 461 which is clamped and cooperated with the matching part 44. The rotating disk 47 is rotatably arranged at the inner end of the adjusting disk 45, and the rotating disk 47 corresponds to the position of the pipeline. The rotating disk 47 contacts with the pipeline to squeeze the pipeline. At the same time, during subsequent welding, the rotating disk 47 can rotate with the pipeline, so as to avoid the situation where the rotating disk 47 hinders the rotation of the pipeline. The trigger member 48 is installed on the outer periphery of the upper end of the adjusting disk 45.

[0035] Reference Figure 6 As shown, the engaging groove 461 is a cross-shaped groove, and the end of the fitting 44 is provided with a cross-shaped structure engaged with the engaging groove 461 .

[0036] During operation, the closing cylinder 32 pushes the cylindrical member 41 to move toward the middle of the base 1 to close, and the rotating disk 47 gradually contacts and pushes the pipeline to close and dock. When it is subsequently detected that the docking pressure of the pipeline does not meet the standard, the electric push rod 42 pushes the base plate to move toward the middle of the base 1, the rotating motor 43 moves toward the middle of the base 1, and the matching member 44 moves toward the middle of the base 1. The end of the moving matching member 44 is inserted into the clamping groove 461 and is clamped with the threaded column 46. After that, the rotating motor 43 drives the matching member 44 to rotate, and the threaded column 46 rotates. Because the threaded column 46 and the clamping groove 461 are threaded, the threaded column 46 moves left and right under the action of the thread after rotation, so that the distance between the rotating disk 47 and the pipeline is closer or farther, thereby realizing the control of the docking pressure between the pipelines. If the pressure is large, the rotating disk 47 moves away from the pipeline to reduce the pressure. If the pressure is small, the rotating disk 47 approaches the pipeline (squeezes it) to increase the pressure.

[0037] Reference Figure 2 , Figure 5 , Figure 8 , Fig. 9 As shown, the center bearing module 5 includes an outer mounting base 51, a rotating ring 52, a sliding ring 53, a clamping member 54, an extruding member 55, and a linkage member 56. The outer mounting base 51 is mounted in the middle of the base 1. The rotating ring 52 is arranged inside the outer mounting base 51 by rotating the electric turntable. The sliding ring 53 is arranged to slide left and right in the rotating ring 52. A spring 1 is connected between the sliding ring 53 and the rotating ring 52. The spring 1 is used for reset. The clamping member 54 is arranged inside the sliding ring 53 for uniform sliding along the radial direction. The clamping member 54 and the rotating ring 52 are connected to each other. A spring 2 is connected between the sliding rings 53, and the spring 2 plays a reset role. The extrusion piece 55 is set on the outer side of the sliding ring 53 for sliding left and right. A spring 3 is connected between the extrusion piece 55 and the sliding ring 53, and the spring 3 plays a reset role. The linkage piece 56 is set on the support frame 2 for sliding left and right. The two ends of the linkage piece 56 are respectively extruded with the trigger piece 48 and the extrusion piece 55. The linkage piece 56 also plays a certain limiting role on the pipeline. When the pipeline tilts during rotation, the linkage piece 56 plays a blocking and limiting role.

[0038] During actual operation, the rotating disk 47 pushes the pipeline. When it moves a certain distance, the trigger member 48 begins to contact and squeeze the linkage member 56. The linkage member 56 is squeezed and moved to squeeze the extrusion member 55. The extrusion member 55 is squeezed and moved to squeeze the clamping member 54. The clamping member 54 is squeezed and closed to clamp the pipeline. At this time, the clamping member 54 can be temporarily regarded as being integrated with the pipeline, and when the clamping member 54 is clamped, the pipelines are just in contact. After that, the rotating disk 47 continues to squeeze the pipeline to move and close, thereby providing a certain docking pressure. At this time, the clamping member 54 is also further closed, and the sliding ring 53 moves and closes under the drive of the clamping member 54, so that the sliding ring 53 squeezes the sensor 61. At this time, the pressure of the sliding ring 53 on the sensor 61 is the docking pressure between the pipelines.

[0039] Reference Figure 5 As shown, the sensing module 6 includes a sensor 61, which is installed inside the external mounting base 51. The sensor 61 is a pressure sensor in the prior art. When working, the sensor 61 senses the pressure between the sliding rings 53. Since the clamping member 54 is clamped and connected with the pipeline, the sliding ring 53 and the pipeline can be temporarily regarded as an integrated structure. Therefore, the pressure between the sliding rings 53 is the docking pressure between the pipelines.

[0040] Reference Figure 1 As shown, the side wall of the external mounting base 51 is provided with a matching hole corresponding to the position of the welding module 7 .

[0041] During welding, the rotating ring 52 rotates under the drive of the electric turntable, and the sliding ring 53 rotates following the rotating ring 52, so that the pipe rotates, and the welding module 7 welds the internal rotating pipe through the matching hole.

[0042] Reference Figure 3-Figure 7As shown, the running-in module 8 includes a gear 1 81, a sliding frame 82, a telescopic rod 83, a gear 2 84, a belt assembly 1 85, a flywheel member 86, a docking member 87, and a belt assembly 2 88. The gear 1 81 is mounted on the outer periphery of the rotating ring 52, the sliding frame 82 is symmetrically arranged on the surface of the base 1 for sliding left and right movement, the upper end of the sliding frame 82 is fixedly connected to the cylindrical member 41, one end of the telescopic rod 83 is rotatably arranged on the sliding frame 82, and the other end of the telescopic rod 83 is rotatably arranged in a hidden groove opened inside the base 1, and the telescopic rod 83 is rotatably arranged in a hidden groove opened inside the base 1. The retractable rod 83 is a telescopic structure. Since the sliding frame 82 needs to slide left and right, the telescopic structure of the telescopic rod 83 avoids interference. Gear 2 84 is rotatably set on the outer wall of the external mounting base 51, and gear 2 84 and gear 1 81 are meshed. Gear 2 84 and telescopic rod 83 are matched through belt assembly 1 85. The flywheel component 86 is rotatably set in the mounting groove, and the flywheel component 86 and the matching component 44 are matched through the docking component 87, and the flywheel component 86 and the telescopic rod 83 are matched through belt assembly 2 88.

[0043] Reference Figure 7 As shown, petal grooves 861 are evenly opened in the middle of the flywheel member 86, and the outer ends of the petal grooves 861 are provided with chamfered structures. The ends of the docking member 87 are provided with rounded corners that are conducive to extrusion. After extrusion, the docking member 87 and the petal grooves 861 are corrected in position to thereby be snapped together.

[0044] During the actual running-in process, the rotating motor 43 drives the matching piece 44 to rotate. At this time, the docking piece 87 is engaged with the petal groove 861, and the rotating matching piece 44 drives the flywheel piece 86 to rotate. Driven by the belt assembly 2 88, the telescopic rod 83 rotates. Under the action of the belt assembly 1 85, the gear 2 84 rotates. Under the meshing action, the gear 1 81 rotates, and the rotating ring 52 rotates with the rotating ring, so that the docking plane of the pipeline is rotated and run-in (there are two pipelines to be welded, and the running-in process is one rotating and the other not moving, and then alternately, one not moving and the other rotating). During the running-in, the sensor 61 is still in operation. If the docking pressure is sensed to be not up to the standard during the running-in process, the electric push rod 42 pushes the base plate to move, and finally the matching piece 44 moves to the middle of the base 1. The moving matching piece 44 is engaged with the threaded column 46, but the moving matching piece 44 separates the docking piece 87 from the petal groove 861. Therefore, when the pressure is adjusted, the pipeline does not rotate.

[0045] The implementation principle of this embodiment is:

[0046] Step 1: Place the pipe on the support frame 2;

[0047] Step 2: The closing module 3 pushes the pipeline to close and dock;

[0048] Step 3: The closing module 3 converts the butt joint pressure between the pipes through the middle bearing module 5, so as to facilitate the sensing module 6 to sense the butt joint pressure. At this time, there are two situations:

[0049] A. If the pressure is qualified, the running-in module 8 controls the pipeline to rotate successively, so as to level and align the contact surface, ensuring that the pressure at each position between the pipelines is within the appropriate range;

[0050] B. If the pressure is not up to standard, the regulating module 4 performs fine pressure adjustment to adjust the docking pressure to a suitable range. The regulating module 4, the running-in module 8, and the sensing module 6 cooperate with each other to ensure that the docking surfaces of the pipelines are within a suitable docking pressure range;

[0051] Step 4: The running-in module 8 and the adjustment module 4 gradually make fine adjustments according to the results of the sensing module 6 to complete the docking;

[0052] Step 5: Remove the workpiece after welding is completed.

[0053] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Auxiliary butt joint equipment for pipeline welding, characterized in that: include: Base (1); A support frame (2) is symmetrically arranged on the base (1), and the support frame (2) supports the pipeline; A closing module (3) is symmetrically arranged at two ends of the base (1), and the closing module (3) closes and docks the pipeline; An adjusting module (4) is arranged on the closing module (3), and the adjusting module (4) adjusts the butt joint pressure of the pipeline; A middle support module (5) is arranged in the middle of the base (1), and the middle support module (5) is located between the support brackets (2); A sensing module (6) is arranged in the middle bearing module (5), and the sensing module (6) senses the butt joint pressure of the pipeline; A welding module (7) arranged on the front side of the middle portion of the base (1); A running-in module (8) is arranged in the base (1), and the running-in module (8) adjusts the alignment of the planes between the pipes.

2. The auxiliary butt joint equipment for pipeline welding according to claim 1, characterized in that: The closing module (3) comprises: A mounting bracket (31) mounted on an end of the base (1); The closing cylinder (32) is mounted on the mounting bracket (31).

3. The auxiliary butt joint equipment for pipeline welding according to claim 2, characterized in that: The adjustment module (4) comprises: A cylindrical member (41) is mounted on the output end of the closing cylinder (32), and a mounting groove is provided inside the cylindrical member (41); An electric push rod (42) is installed inside the installation groove, and a base plate is installed on the output end of the electric push rod (42), and the base plate is slidably arranged in the installation groove. A rotating motor (43) is mounted on the base plate via a motor seat, and a matching piece (44) is mounted on the output end of the rotating motor (43); The adjusting plate (45) has a threaded column (46) installed at its outer end. The threaded column (46) is arranged in the installation groove through threaded engagement. The end of the threaded column (46) is provided with a clamping groove (461) that is clamped and engaged with the matching piece (44). A rotating disk (47) is rotatably arranged at the inner end of the adjusting disk (45), and the rotating disk (47) corresponds to the position of the pipeline; A trigger member (48) is mounted on the outer periphery of the upper end of the adjustment disk (45).

4. The auxiliary butt joint equipment for pipeline welding according to claim 3, characterized in that: The clamping groove (461) is a cross-shaped groove, and the end of the matching piece (44) is provided with a cross-shaped structure for clamping with the clamping groove (461).

5. The auxiliary butt joint equipment for pipeline welding according to claim 3, characterized in that: The center bearing module (5) comprises: An external mounting base (51) mounted in the middle of the base (1); A rotating ring (52) is rotatably arranged inside the outer mounting base (51) via an electric turntable; A sliding ring (53) is slidably disposed in the rotating ring (52) and a spring is connected between the sliding ring (53) and the rotating ring (52); A clamping member (54) is evenly slidably arranged in the radial direction inside the sliding ring (53), and a second spring is connected between the clamping member (54) and the sliding ring (53); An extrusion piece (55) is slidably disposed on the outside of the sliding ring (53) and a spring (3) is connected between the extrusion piece (55) and the sliding ring (53); The linkage member (56) is slidably arranged on the support frame (2) to the left and right, and the two ends of the linkage member (56) are respectively extrusion-matched with the trigger member (48) and the extrusion member (55).

6. The auxiliary butt joint equipment for pipeline welding according to claim 5, characterized in that: The sensing module (6) comprises: The sensor (61) is installed inside the outer mounting base (51).

7. The auxiliary butt joint equipment for pipeline welding according to claim 5, characterized in that: The side wall of the external mounting base (51) is provided with a matching hole corresponding to the position of the welding module (7).

8. The auxiliary butt joint equipment for pipeline welding according to claim 5, characterized in that: The running-in module (8) comprises: Gear 1 (81), which is mounted on the outer periphery of the rotating ring (52); A sliding frame (82) is symmetrically arranged on the surface of the base (1) in a sliding manner, and the upper end of the sliding frame (82) is fixedly connected to the cylindrical member (41); A telescopic rod (83), one end of which is rotatably mounted on the sliding frame (82), and the other end of the telescopic rod (83) is rotatably mounted in a hidden groove provided inside the base (1); Gear 2 (84) is rotatably mounted on the outer wall of the outer mounting base (51), and gear 2 (84) and gear 1 (81) are meshed with each other, and gear 2 (84) and the telescopic rod (83) are matched with each other via a belt assembly 1 (85); The flywheel member (86) is rotatably arranged in the mounting groove. The flywheel member (86) and the matching member (44) are matched through a docking member (87). The flywheel member (86) and the telescopic rod (83) are matched through a belt assembly 2 (88).

9. The auxiliary butt joint equipment for pipeline welding according to claim 8, characterized in that: The middle part of the flywheel member (86) is evenly provided with petal grooves (861), and the outer ends of the petal grooves (861) are provided with chamfered structures; The end of the docking piece (87) is provided with a rounded corner that is conducive to extrusion, and the docking piece (87) and the petal groove (861) are corrected in position after extrusion to thereby engage with each other.

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