Pipeline welding device

Abstract

The utility model provides a pipeline welding device which comprises a supporting device, a welding machine, a driving device, two bearing frames and two clamping devices. The welding machine is arranged at the top of the supporting device; the two bearing frames are rotationally arranged at the top of the supporting device and are arranged on the two sides of the welding machine correspondingly, and each bearing frame bears one pipeline; the two clamping devices are arranged on the two bearing frames in a one-to-one correspondence mode, and each clamping device clamps the corresponding pipeline; the driving device is arranged at the bottom of the supporting device and connected with one bearing frame so as to drive the bearing frame to drive the corresponding pipeline to rotate. According to the pipeline welding device, the two clamping devices respectively clamp the two pipelines, so that the two pipelines and the corresponding bearing frames are relatively fixed, the driving device drives one bearing frame to drive the corresponding pipeline to rotate and further drives the other pipeline to rotate together, and the non-welded parts of the two pipelines can rotate to a welding machine. Welding of a welding machine is facilitated, and welding dead angles are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline welding technical field, specifically, a pipeline welding device. BACKGROUND

[0002] Pipeline is connected with pipe, pipe coupling and valve and is used for conveying gas, liquid or fluid with solid particles. In the construction process, sometimes two pipelines need to be butt welded. When the pipelines are butt jointed, the two pipelines are usually hoisted and aligned through the mounting frame, and then welding operation is carried out. However, due to the limitation of the mounting frame, it is inconvenient to weld, and welding dead angle is easy to occur. SUMMARY

[0003] In view of this, the utility model provides a pipeline welding device, which aims at solving the problem of inconvenient welding and easy welding dead angle in the prior art.

[0004] The utility model provides a pipeline welding device, which comprises: a supporting device, a welding machine, a driving device, two bearing frames and two clamping devices, wherein the welding machine is arranged on the top of the supporting device; the two bearing frames are rotatably arranged on the top of the supporting device and are respectively arranged on the two sides of the welding machine, and each bearing frame is used for bearing one pipeline; the two clamping devices are one-to-one arranged on the two bearing frames, and each clamping device is used for clamping the corresponding pipeline; the driving device is arranged on the bottom of the supporting device and is connected with one of the bearing frames, and is used for driving the bearing frame to rotate the corresponding pipeline.

[0005] Further, in the above-mentioned pipeline welding device, each clamping device comprises: two clamping mechanisms; wherein the two clamping mechanisms are respectively arranged on the two sides of the corresponding bearing frame; each clamping mechanism comprises: a clamping ring, a driving structure and at least two clamping plates; wherein the clamping ring is connected with the bearing frame, and the inside of the clamping ring is used for penetrating the pipeline; each clamping plate is movably penetrated in the clamping ring and partially arranged in the clamping ring; the driving structure is arranged in the clamping ring and connected with each clamping plate, and is used for driving each clamping plate to move to the inside of the clamping ring to clamp the pipeline.

[0006] Further, in the above-mentioned pipeline welding device, the driving structure comprises: a driving motor, a limiting ring, a gear ring, at least two gears and at least two racks; wherein the limiting ring is arranged on one side of the clamping ring, and the gear ring is rotatably arranged in the limiting ring; each rack is one-to-one arranged on each clamping plate; each gear is rotatably arranged in the clamping ring, each gear is engaged with the gear ring and one-to-one engaged with each rack; the driving motor is arranged in the clamping ring and connected with one of the gears.

[0007] Further, the pipe welding device, each rack is provided with a limiting block at the end towards the center of the clamping ring.

[0008] Further, the pipe welding device, each clamping mechanism further comprises an inner ring and at least two connecting plates, the inner ring is arranged in the clamping ring, the inner part of the inner ring is used for penetrating the pipe, the first end of each connecting plate is arranged on the inner wall of the clamping ring in a circumferential direction, the second end of each connecting plate is connected with the outer wall of the inner ring, and each clamping plate is movably arranged in the clamping ring and the inner ring and partially arranged in the inner part of the inner ring.

[0009] Further, the pipe welding device, in each clamping device, one of the clamping mechanisms is adjustably connected with the corresponding carrier frame.

[0010] Further, the pipe welding device further comprises a driving mechanism, a moving body, a supporting ring, a sleeve ring, a supporting cylinder and a sliding rod, the top of the moving body is movably arranged on the top of the supporting device, the bottom of the moving body is connected with the supporting ring, the sleeve ring is rotatably arranged in the supporting ring and connected with the clamping mechanism, the driving mechanism is arranged on the top of the supporting device and connected with the moving body, used for driving the moving body to move to approach or away from the carrier frame, the first end of the supporting cylinder is connected with the carrier frame, the first end of the sliding rod is slidably inserted into the supporting cylinder from the second end of the supporting cylinder, and the second end of the sliding rod is connected with the clamping mechanism.

[0011] Further, the pipe welding device, the driving mechanism comprises a lead screw and a handle, the lead screw is rotatably arranged on the top of the supporting device, the moving body is provided with a threaded hole screw-connected with the lead screw, and the handle is connected with the lead screw and used for driving the lead screw to rotate to drive the moving body to move.

[0012] Further, the pipe welding device, each carrier frame comprises a U-shaped mounting body, a carrier cylinder and two parallel arranged carrier rings, the closed end of the mounting body is connected with the top of the supporting device, the two carrier rings are correspondingly arranged at the two ends of the mounting body, and the carrier cylinder is rotatably arranged in the two carrier rings.

[0013] Further, the pipe welding device, the driving device comprises a motor, a first pulley, a second pulley and a belt, the first pulley is arranged on one of the carrier frames, the motor is arranged on the bottom of the supporting device and its driving end is connected with the second pulley, and the belt is wound between the first pulley and the second pulley, and / or the supporting device comprises a top plate, a bottom plate and a plurality of supporting columns, the supporting columns are arranged between the top plate and the bottom plate, and the welding machine and the two carrier frames are arranged on the top plate.

[0014] The utility model discloses, two bearing frames can rotatably set up in the top of support device and place respectively in the both sides of welding machine, two pipes are placed in two bearing frames respectively, and the butt joint of two pipes corresponds with welding machine, and it is convenient for welding machine to weld the butt joint of two pipes, and the clamping device on each bearing frame clamps the corresponding pipe, makes pipe and corresponding bearing frame relative fixed, and drive arrangement drives one of bearing frames to drive corresponding pipe to rotate, and then drives another pipe to rotate together, makes the unwelded part of two pipes rotate to the position corresponding with welding machine, and it is convenient for the welding of welding machine, avoids the emergence welding dead angle, solved the inconvenient welding and the problem of easy welding dead angle when the pipe butt joint welding in prior art. BRIEF DESCRIPTION OF DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present inventive subject matter. The same reference numerals in different drawings represent the same or similar elements. In the drawings:

[0016] Figure 1 A structural schematic diagram of the pipe welding device provided by the utility model embodiment is shown in the figure.

[0017] Figure 2 A three-dimensional cut structure schematic diagram of the pipe welding device provided by the utility model embodiment is shown in the figure.

[0018] Figure 3 A structure schematic diagram of the bearing frame and clamping device in the pipe welding device provided by the utility model embodiment is shown in the figure.

[0019] Figure 4 A structure schematic diagram of the clamping mechanism in the pipe welding device provided by the utility model embodiment is shown in the figure.

[0020] Figure 5 A Figure 2 A local enlarged view of A in the figure. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown. It is to be understood that the present disclosure can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the embodiments and features of the present disclosure can be combined with each other unless there is a conflict. The present disclosure will be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference will now be made toFigures 1 to 5 The preferred structure of the pipe welding device in the embodiment is shown in the figure. As shown in the figure, the pipe welding device comprises a support device 1, a welding machine 2, a driving device 3, two bearing frames 4 and two clamping devices. The support device 1 comprises a top plate 110, a bottom plate 120 and a plurality of support columns 130. The top plate 110 is parallel to the bottom plate 120, and each support column 130 is arranged between the top plate 110 and the bottom plate 120 at intervals. Specifically, each support column 130 is arranged between the top plate 110 and the bottom plate 120 at intervals, and the number of support columns 130 can be determined according to actual conditions, which is not limited in the embodiment. In the embodiment, the top plate 110 and the bottom plate 120 are both rectangular, and the four support columns 130 are respectively arranged at the four corners of the bottom plate 120.

[0023] The welding machine 2 is arranged at the top of the support device 1, specifically, the welding machine 2 is arranged on the bottom surface of the top plate 110 (i.e. the surface of the top plate 110 facing the bottom plate 120), and a welding rod head is mounted on the welding machine 2.

[0024] The two bearing frames 4 are rotatably arranged at the top of the support device 1, specifically, the two bearing frames 4 are both rotatably arranged on the bottom surface of the top plate 110. Moreover, the two bearing frames 4 are respectively arranged on the two sides of the welding machine 2, and each bearing frame 4 is used for bearing one pipe. In this way, the two bearing frames 4 each bear one pipe, and since the bearing frames 4 are arranged on the top plate 110, the two pipes are in a suspended state, and the two pipes are connected to each other at a position corresponding to the position of the welding machine 2, which is convenient for welding.

[0025] The two clamping devices correspond to the two bearing frames 4 one by one, each clamping device is arranged on the corresponding bearing frame 4, and each clamping device is used for clamping the corresponding pipe.

[0026] The driving device 3 is arranged at the bottom of the support device 1, specifically, the driving device 3 is arranged on the bottom plate 120. Moreover, the driving device 3 is connected with one of the bearing frames 4, and the driving device 3 is used for driving the bearing frame 4 connected therewith to rotate the corresponding pipe.

[0027] Preferably, the driving device 3 comprises a motor 31, a first pulley 32, a second pulley 33 and a belt 34. The first pulley 32 is arranged on one of the bearing frames 4, and the motor 31 is arranged at the bottom of the support device 1, i.e. the motor 31 is arranged on the bottom plate 120. The driving end of the motor 31 is connected with the second pulley 33, and the belt 34 is wound between the first pulley 32 and the second pulley 33. The motor 31 drives the second pulley 33 to rotate, the first pulley 32 is driven to rotate through the belt 34, and the bearing frame 4 is driven to rotate through the first pulley 32, thereby realizing the rotation of the bearing frame 4 driving the corresponding pipe.

[0028] Preferably, the driving device 3 comprises a motor 31, a first pulley 32, a second pulley 33 and a belt 34, wherein the first pulley 32 is arranged on one of the carriers 4, the motor 31 is arranged on the bottom of the supporting device 1 and the driving end of the motor 31 is connected with the second pulley 33, and the belt 34 is arranged between the first pulley 32 and the second pulley 33; and / or the supporting device 1 comprises a top plate 110, a bottom plate 120 and a plurality of supporting columns 130, wherein each of the supporting columns 130 is arranged between the top plate 110 and the bottom plate 120, and the welding machine 2 and the two carriers 4 are arranged on the top plate 110.

[0029] In use, the two pipes are arranged in the two carriers 4 respectively, and the end portions of the two pipes are butted. After the butt joint, the welding machine 2 welds the butt joint of the two pipes, and after the top surface of the butt joint of the two pipes is welded, the driving device 3 drives one of the carriers 4 to rotate, and the carrier 4 drives the pipe in the carrier 4 to rotate, and in turn drives the other pipe to rotate, so that the remaining un-welded portions of the two pipes are rotated to a position convenient for welding, and the welding machine 2 continues to weld the un-welded portions.

[0030] It can be seen that in the embodiment, the two carriers 4 are rotatably arranged on the top of the supporting device 1 and are respectively arranged on the two sides of the welding machine 2, the two pipes are arranged in the two carriers 4 respectively, the butt joint of the two pipes corresponds to the welding machine 2, which is convenient for the welding machine 2 to weld the butt joint of the two pipes, the clamping device on each carrier 4 clamps the corresponding pipe, so that the pipe is relatively fixed with the corresponding carrier 4, the driving device 3 drives one of the carriers 4 to drive the corresponding pipe to rotate, and in turn drives the other pipe to rotate, so that the un-welded portions of the two pipes are rotated to a position corresponding to the welding machine 2, which is convenient for the welding of the welding machine 2, avoids the welding dead angle, and solves the problems that the pipe butt joint is not convenient to weld and the welding dead angle is easy to occur in the prior art.

[0031] Referring to Figures 1 to 4 In each of the above embodiments, each clamping device comprises two clamping mechanisms 5, wherein the two clamping mechanisms 5 are arranged on the two sides of the corresponding carrier 4, and each clamping mechanism 5 is connected with the corresponding carrier 4.

[0032] Each clamping mechanism 5 comprises a clamping ring 51, a driving structure and at least two clamping plates 52, wherein the clamping ring 51 is annular, the clamping ring 51 is connected with the carrier 4, and specifically, the clamping ring 51 and the carrier 4 can be connected through the connecting rod 14, and the inside of the clamping ring 51 is used for penetrating the pipe.

[0033] Each clamping plate 52 is movably arranged in the clamping ring 51, and part of each clamping plate 52 is arranged in the clamping ring 51. Specifically, each clamping plate 52 is arranged at intervals along the circumference of the clamping ring 51, and preferably each clamping plate 52 is uniformly distributed along the circumference of the clamping ring 51. The clamping ring 51 is uniformly provided with a plurality of first through holes 511 along the circumference, each first through hole 511 corresponds to one clamping plate 52, each clamping plate 52 is movably arranged in the corresponding first through hole 511, and part of each clamping plate 52 is arranged inside the clamping ring 51.

[0034] A driving structure is arranged in the clamping ring 51, and the driving structure is connected with each clamping plate 52. The driving structure is used to drive each clamping plate 52 to move towards the inside of the clamping ring 51, so that each clamping plate 52 is arranged in the end of the pipe to clamp the pipe, and the driving structure can also drive each clamping plate 52 to move towards the outside of the clamping ring 51, so that each clamping plate 52 is arranged in the end of the pipe to release the pipe.

[0035] The driving structure comprises a driving motor 53, a limiting ring 54, a gear ring 55, at least two gears 56 and at least two racks 57. The limiting ring 54 is arranged on one side of the clamping ring 51. Specifically, the limiting ring 54 is annular, the limiting ring 54 is fixedly connected with the clamping ring 51, and the limiting ring 54 is arranged on one side of the clamping ring 51. The inside of the limiting ring 54 is in communication with the inside of the clamping ring 51.

[0036] The gear ring 55 is rotatably arranged in the limiting ring 54. Specifically, the gear ring 55 is annular, the outer wall of the gear ring 55 is rotatably connected with the inner wall of the limiting ring 54, and the inner wall of the gear ring 55 is provided with a plurality of engaging teeth.

[0037] Each rack 57 corresponds to one clamping plate 52, and each rack 57 is arranged on the corresponding clamping plate 52.

[0038] Each gear 56 is rotatably arranged in the clamping ring 51, each gear 56 is engaged with the gear ring 55, and each gear 56 corresponds to one rack 57, and each gear 56 is engaged with the corresponding rack 57.

[0039] The driving motor 53 is arranged in the clamping ring 51, and the driving motor 53 is connected with one of the gears 56. The driving motor 53 drives the gear 56 connected therewith to rotate, thereby driving the gear ring 55 to rotate. The rotation of the gear ring 55 drives the remaining gears 56 to rotate. In this way, each gear 56 rotates synchronously, thereby driving each rack 57 to move. Each rack 57 drives each clamping plate 52 to move, so that each clamping plate 52 moves towards the inside of the clamping ring 51, and the end of each clamping plate 52 is arranged in the pipe to clamp the pipe.

[0040] Specifically, the mounting plate 12 is arranged on the clamping ring 51, the driving motor 53 is arranged on the mounting plate 12, the mounting plate 12 is provided with a through hole, the driving end of the driving motor 53 is rotatably arranged in the through hole, and the driving end is connected with one of the gear wheels 56. The remaining gear wheels 56 are connected with the clamping ring 51 through the U-shaped fixing frames 13. The number of the fixing frames 13 is the same as the number of the remaining gear wheels 56 and one-to-one correspondence. The first end of each fixing frame 13 is connected with the clamping ring 51, and the second end of each fixing frame 13 is rotatably connected with the corresponding gear wheel 56.

[0041] In specific implementation, the mounting plate 12 and the fixing frame 13 are arranged on one side of the clamping ring 51, and the limiting ring 54 is arranged on the other side of the clamping ring 51.

[0042] Preferably, the thickness of each gear wheel 56 is equal to the sum of the thickness of the gear ring 55, the thickness of the corresponding clamping plate 52 and the thickness of the corresponding rack 57, that is, the thickness of the gear wheel 56 = the thickness of the gear ring 55 + the thickness of the corresponding clamping plate 52 + the thickness of the corresponding rack 57. In this way, each gear wheel 56 can be engaged with the corresponding rack 57 while being engaged with the gear ring 55, and the driving motor 53 can drive each clamping plate 52 to move at the same time, thereby saving costs.

[0043] Each clamping mechanism 5 further comprises an inner ring 58 and at least two connecting plates 59. The inner ring 58 is annular, the inner ring 58 is arranged in the clamping ring 51, and the inner ring 58 is arranged at the central part of the clamping ring 51. The inner ring 58 is concentrically arranged with the clamping ring 51, and the inside of the inner ring 58 is used to pass through the pipeline.

[0044] The first end of each connecting plate 59 is arranged on the inner wall of the clamping ring 51, and the second end of each connecting plate 59 is connected with the outer wall of the inner ring 58. Specifically, the connecting plates 59 are arranged on the inner wall of the clamping ring 51 along the circumferential direction of the clamping ring 51, and preferably, the connecting plates 59 are uniformly distributed along the circumferential direction of the clamping ring 51. The two ends of each connecting plate 59 are connected with the clamping ring 51 and the inner ring 58 respectively, so that the inner ring 58 is stably arranged at the central part of the clamping ring 51.

[0045] Each clamping plate 52 is movably arranged in the clamping ring 51 and the inner ring 58 in sequence, and part of each clamping plate 52 is arranged inside the inner ring 58. Specifically, the inner ring 58 is provided with second through holes 581 at positions corresponding to the first through holes 511 of each clamping ring 51, the number of the second through holes 581 is the same as that of the first through holes 511, and the positions of each second through hole 581 correspond to the positions of each first through hole 511 one by one. Each clamping plate 52 is movably arranged in the corresponding first through hole 511 and second through hole 581 in sequence, part of each clamping plate 52 is arranged inside the inner ring 58, and each clamping plate 52 is arranged at the end of the pipe clamping channel inside the inner ring 58.

[0046] In specific implementation, the number of the connecting plates 59, the number of the first through holes 511, the number of the second through holes 581, the number of the gears 56, and the number of the racks 57 can be determined according to actual conditions, and the present embodiment does not make any limitation on this. In the present embodiment, the number of the connecting plates 59, the number of the first through holes 511, the number of the second through holes 581, the number of the gears 56, and the number of the racks 57 are all equal to three. The number of the fixed frames 13 is two.

[0047] Preferably, each rack 57 is provided with a limiting block at the end thereof facing the center of the clamping ring 51. When the pipe welding is completed and each clamping plate 52 releases the clamping of the pipe, each rack 57 needs to move away from the center of the clamping ring 51, and each limiting block can limit the rack 57 to avoid the rack 57 from disengaging from the clamping ring 51, thereby ensuring the normal operation of the clamping mechanism 5.

[0048] As can be seen, in the present embodiment, the structure of each clamping device is simple and easy to implement. The driving motor 53 drives the rotation of the gear 56 connected thereto, and then drives the synchronous rotation of each gear 56 through the gear ring 55, thereby driving the synchronous movement of each clamping plate 52. The end of each clamping plate 52 arranged inside the inner ring 58 clamps the pipe, thereby realizing the stable clamping of the pipe. The position of each clamping plate 52 can be adjusted according to the diameter of the pipe, so that each clamping plate 52 can clamp pipes with different diameters, thereby improving the use flexibility of the welding device.

[0049] Referring to Figures 1 to 4 In each of the above embodiments, each bearing frame 4 comprises a mounting body 41, a bearing cylinder 42, and two bearing rings 43 arranged side by side. The mounting body 41 is in a U shape, specifically, the mounting body 41 has two parallel side walls and a bottom wall clamped between the first ends of the two side walls. The second ends of the two side walls form two ends of the mounting body 41, and the bottom wall forms a closed end of the mounting body 41.

[0050] The closed end of the mounting body 41 is connected to the top of the support device 1, and specifically, the bottom wall of the mounting body 41 is fixedly connected to the bottom surface of the top plate 110.

[0051] Two bearing rings 43 correspond to the two ends of the mounting body 41, and each bearing ring 43 is arranged at the corresponding end of the mounting body 41. Specifically, each bearing ring 43 is annular, the top of each bearing ring 43 is connected to the second end of the corresponding side wall of the mounting body 41, and the bottom of each bearing ring 43 is in a suspended state.

[0052] The bearing cylinder 42 is rotatably arranged in the two bearing rings 43, and specifically, the two bearing rings 43 are fixed relative to the top plate 110 through the mounting body 41, the two ends of the bearing cylinder 42 correspond to the two bearing rings 43, each end of the bearing cylinder 42 is arranged in the corresponding bearing ring 43, and the outer wall of each end of the bearing cylinder 42 is rotatably connected to the inner wall of the corresponding bearing ring 43.

[0053] In specific implementation, each bearing ring 43 is provided with a rotating ring 44, the rotating ring 44 is arranged in the bearing ring 43, the outer wall of the rotating ring 44 is rotatably connected to the inner wall of the bearing ring 43, and the inner wall of the rotating ring 44 is connected to the outer wall of the bearing cylinder 42. The bearing cylinder 42 is arranged in the two rotating rings 44 in sequence and is fixedly connected to the two rotating rings 44.

[0054] In specific implementation, the bearing cylinder 42 in one of the bearing frames 4 is connected to the first pulley 32, and specifically, the first pulley 32 is arranged on the outside of the bearing cylinder 42, and the first pulley 32 is connected to the bearing cylinder 42.

[0055] The two sides of the bearing cylinder 42 are connected to the clamping rings 51 in the corresponding clamping mechanisms 5 through a plurality of connecting rods 14, and the two clamping rings 51 and the bearing cylinder 42 are spaced apart by the plurality of connecting rods 14. In this way, the two clamping mechanisms 5 can clamp different parts of the pipeline in the length direction, improving the stability of the pipeline clamping. When the length of the pipeline is relatively short, the two clamping mechanisms 5 can clamp the two ends of the pipeline. Even if the length of the pipeline is relatively long, the two clamping mechanisms 5 can clamp the pipeline at intervals, ensuring the stability of the pipeline.

[0056] Specifically, the number of connecting rods 14 can be determined according to actual conditions, and the present embodiment does not make any limitation in this regard. In the present embodiment, there are three connecting rods 14, and the three connecting rods 14 are uniformly arranged on one side of the clamping ring 51 along the circumferential direction of the clamping ring 51.

[0057] When the length of the pipe is long, in each clamping device, one of the clamping mechanisms 5 is adjustably connected with the corresponding carrier frame 4, so that the distance between the clamping mechanism 5 and the carrier frame 4 is adjustable, and the other clamping mechanism 5 is fixedly connected with the corresponding carrier frame 4. Specifically, on both sides of each carrier frame 4, one of the clamping mechanisms 5 is connected with one side of the carrier frame 4 through a connecting rod 14, and the other clamping mechanism 5 is adjustably connected with the other side of the carrier frame 4. In this way, the position of one of the clamping mechanisms 5 can be adjusted according to the length of the pipe, so that the two clamping mechanisms 5 can stably clamp the pipe, improving the stability of the pipe and facilitating welding.

[0058] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the pipe welding device further comprises a driving mechanism 6, a moving body 7, a support ring 8, a sleeve ring 9, a support cylinder 10 and a sliding rod 11. Specifically, the top of the moving body 7 is movably arranged on the top of the support device 1, and more specifically, the top of the moving body 7 is movably connected with the bottom surface of the top plate 110, so that the moving body 7 can move relative to the top plate 110.

[0059] The bottom of the moving body 7 is connected with the support ring 8, and more specifically, the support ring 8 is annular, and the top of the support ring 8 is fixedly connected with the bottom of the moving body 7.

[0060] The sleeve ring 9 is rotatably arranged in the support ring 8, and more specifically, the sleeve ring 9 is arranged inside the support ring 8, and the outer wall of the sleeve ring 9 is rotatably connected with the inner wall of the support ring 8, so that the sleeve ring 9 can freely rotate relative to the support ring 8. The sleeve ring 9 is connected with the clamping mechanism 5, and more specifically, the sleeve ring 9 is connected with the limiting ring 54 in the clamping mechanism 5, and more specifically, the inner wall of the sleeve ring 9 is fixedly connected with the outer wall of the limiting ring 54.

[0061] The driving mechanism 6 is arranged on the top of the support device 1, i.e. the driving mechanism 6 is arranged on the top plate 110, and the driving mechanism 6 is connected with the moving body 7, and the driving mechanism 6 is used to drive the moving body 7 to move, so that the moving body 7 approaches or moves away from the carrier frame 4.

[0062] The driving mechanism 6 comprises a lead screw 61 and a handle 62. Specifically, the lead screw 61 is rotatably arranged on the top of the support device 1, and more specifically, the top plate 110 is provided with a sliding groove near the end, and the lead screw 61 is rotatably arranged in the sliding groove. The length direction of the lead screw 61 is parallel to the length direction of the top plate 110 (i.e. the a direction shown in the figure). Figure 2

[0063] ​The moving body 7 is provided with a threaded hole, which is screwed with the screw rod 61. The handle 62 is connected with one end of the screw rod 61, and the handle 62 is used to drive the screw rod 61 to rotate, so as to drive the moving body 7 to move. Specifically, the staff rotates the handle 62, and the handle 62 drives the screw rod 61 to rotate. Since the moving body 7 is screwed with the screw rod 61, the rotation of the screw rod 61 drives the moving body 7 to move along the screw rod 61.

[0064] The first end (the right end shown in the figure) of the supporting cylinder 10 is connected with the bearing frame 4, and the first end (the right end shown in the figure) of the sliding rod 11 is slidably inserted into the supporting cylinder 10 from the second end (the left end shown in the figure) of the supporting cylinder 10, and the second end (the left end shown in the figure) of the sliding rod 11 is connected with the clamping mechanism 5. Specifically, the first end of the supporting cylinder 10 is connected with one end of the bearing cylinder 42 in the bearing frame 4, the sliding rod 11 is slidably connected with the supporting cylinder 10, and the second end of the sliding rod 11 is connected with the clamping ring 51 in the clamping mechanism 5. Figure 3 Figure 3 Preferably, the supporting cylinder 10 and the sliding rod 11 form a sliding assembly, and the number of the sliding assemblies can be determined according to actual conditions, which is not limited in the embodiment. The sliding assemblies are arranged at intervals on the bearing frame 4, and specifically, the sliding assemblies are uniformly arranged between the end of the bearing cylinder 42 and the clamping ring 51 along the circumference of the bearing cylinder 42. In the embodiment, the number of the sliding assemblies is three. Figure 3 Figure 3 Specifically, on both sides of each bearing frame 4, the clamping ring 51 in one of the clamping mechanisms 5 is connected with one side of the bearing cylinder 42 through a plurality of connecting rods 14, and the clamping ring 51 in the other clamping mechanism 5 is connected with the other side of the bearing cylinder 42 through a plurality of sliding assemblies.

[0065] It can be seen that in the embodiment, the positions between the clamping mechanisms 5 and the bearing frame 4 are adjusted, that is, the distance between the clamping mechanisms 5 and the bearing frame 4 is adjusted, so that the two clamping mechanisms 5 can stably clamp the pipes and can adapt to the pipes with a relatively long length.

[0066] The use process of the pipe welding device is introduced as follows: two pipes are respectively arranged in the two bearing frames 4, and the two pipes are connected, and the connection position corresponds to the position of the welding machine 2. Then, the two clamping devices clamp the corresponding pipes.

[0067] The use process of the pipe welding device is introduced as follows: two pipes are respectively arranged in the two bearing frames 4, and the two pipes are connected, and the connection position corresponds to the position of the welding machine 2. Then, the two clamping devices clamp the corresponding pipes.

[0068] The use process of the pipe welding device is introduced as follows: two pipes are respectively arranged in the two bearing frames 4, and the two pipes are connected, and the connection position corresponds to the position of the welding machine 2. Then, the two clamping devices clamp the corresponding pipes. Figure 1 The use process of the pipe welding device is introduced as follows: two pipes are respectively arranged in the two bearing frames 4, and the two pipes are connected, and the connection position corresponds to the position of the welding machine 2. Then, the two clamping devices clamp the corresponding pipes. Figure 5 The use process of the pipe welding device is introduced as follows: two pipes are respectively arranged in the two bearing frames 4, and the two pipes are connected, and the connection position corresponds to the position of the welding machine 2. Then, the two clamping devices clamp the corresponding pipes.

[0069] ​​Since the two clamping devices are identical in structure, the clamping process of one of the clamping devices and one of the pipe is described as an example: the pipe is sequentially arranged in the inner ring 58 of one of the clamping mechanisms 5, the bearing cylinder 42 and the inner ring 58 of the other clamping mechanism 5, and the driving motor 53 in each clamping mechanism 5 drives the gear 56 connected thereto to rotate. Since the gear ring 55 is engaged with each gear 56, the rotation of the gear 56 drives the rotation of the gear ring 55, thereby synchronously driving the rotation of the remaining gears 56. In addition, the rotation of each gear 56 drives the corresponding rack 57 to move, so that each clamping plate 52 moves towards the center of the inner ring 58, and the end of each clamping plate 52 arranged in the inner ring 58 abuts against the outer wall of the pipe, thereby clamping the pipe, and the pipe is stably arranged in the bearing cylinder 42.

[0070] After the two pipes are clamped by the two clamping devices respectively, the welding machine 2 welds the butt joint of the two pipes. After the top surface of the butt joint of the two pipes is welded, the motor 31 drives the second pulley 33 to rotate, thereby driving the belt 34 to rotate, and the belt 34 drives the first pulley 32 to rotate, and the first pulley 32 drives the bearing cylinder 42 connected thereto to rotate, and the rotation of the bearing cylinder 42 drives the two clamping mechanisms 5 to rotate, thereby driving the clamped pipe to rotate, and driving the other pipe to rotate together, so that the remaining un-welded parts of the two pipes are rotated to the position of the welding machine 2, and the welding machine 2 welds the un-welded parts.

[0071] When clamping a longer pipe, the knob 62 is rotated, the knob 62 drives the screw rod 61 to rotate, and the moving body 7 is driven by the supporting ring 8 to move left and right along the screw rod 61, and the sleeve ring 9 is driven by the supporting ring 8 to move left and right. Since the sleeve ring 9 is connected with the limiting ring 54 in the clamping mechanism 5, the movement of the sleeve ring 9 drives the clamping mechanism 5 to move left and right together, thereby adjusting the distance between the clamping mechanism 5 and the bearing cylinder 42. Although the distance between the other clamping mechanism 5 and the bearing cylinder 42 is fixed, the distance between the two clamping mechanisms 5 is variable, so that the two clamping mechanisms 5 can clamp the pipe to the best position, thereby stably clamping the pipe and improving the stability of the pipe clamping.

[0072] In conclusion, in the embodiment, the two bearing frames 4 are rotatably arranged on the top of the support device 1 and are respectively arranged on the two sides of the welding machine 2, the two pipes are respectively arranged in the two bearing frames 4, the butt joint of the two pipes corresponds to the welding machine 2, the welding machine 2 is convenient for welding the butt joint of the two pipes, the clamping device on each bearing frame 4 clamps the corresponding pipe, so that the pipe is relatively fixed with the corresponding bearing frame 4, the driving device 3 drives one of the bearing frames 4 to drive the corresponding pipe to rotate, and then drives the other pipe to rotate, so that the non-welding part of the two pipes is rotated to the position corresponding to the welding machine 2, the welding of the welding machine 2 is convenient, and the welding dead angle is avoided.

[0073] It should be noted that, in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship terms based on the direction or positional relationship shown in the drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0074] In addition, it should also be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0075] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and the equivalent technology thereof, the utility model also intends to include these modifications and variations.

Claims

1. A pipe welding apparatus, characterized in that, include: The system comprises a support device (1), a welding machine (2), a drive device (3), two support frames (4), and two clamping devices; among which, The welding machine (2) is mounted on top of the support device (1); Two of the support frames (4) are rotatably mounted on the top of the support device (1) and respectively placed on both sides of the welding machine (2), each of the support frames (4) being used to support a pipe; The two clamping devices are respectively arranged on the two support frames (4), and each clamping device is used to clamp the corresponding pipe; The driving device (3) is located at the bottom of the support device (1) and connected to one of the support frames (4), and is used to drive the support frame (4) to rotate the corresponding pipe.

2. The pipe welding apparatus according to claim 1, characterized in that, Each of the clamping devices includes: two clamping mechanisms (5); wherein, The two clamping mechanisms (5) are respectively disposed on both sides of the corresponding support frame (4); Each of the clamping mechanisms (5) includes: a clamping ring (51), a drive structure and at least two clamping plates (52); wherein the clamping ring (51) is connected to the support frame (4), and the interior of the clamping ring (51) is used for inserting pipes; Each of the clamping plates (52) is movably inserted through the clamping ring (51) and partially placed inside the clamping ring (51); The driving structure is disposed on the clamping ring (51) and connected to each of the clamping plates (52), and is used to drive each of the clamping plates (52) to move into the clamping ring (51) to clamp the pipe.

3. The pipe welding apparatus according to claim 2, characterized in that, The drive structure includes: a drive motor (53), a limiting ring (54), a gear ring (55), at least two gears (56), and at least two racks (57); wherein, The limiting ring (54) is disposed on one side of the clamping ring (51), and the toothed ring (55) is rotatably disposed inside the limiting ring (54); Each of the racks (57) is disposed on each of the clamping plates (52) in a corresponding manner; Each of the gears (56) is rotatably disposed within the clamping ring (51), and each of the gears (56) meshes with the gear ring (55) and meshes with each of the racks (57) in a one-to-one correspondence; The drive motor (53) is disposed on the clamping ring (51) and connected to one of the gears (56).

4. The pipe welding apparatus according to claim 3, characterized in that, Each of the racks (57) has a limit block at its end facing the center of the clamping ring (51).

5. The pipe welding apparatus according to claim 2, characterized in that, Each of the clamping mechanisms (5) further includes: an inner ring (58) and at least two connecting plates (59); wherein, The inner ring (58) is placed inside the clamping ring (51), and the interior of the inner ring (58) is used for the passage of the pipe; The first end of each of the connecting plates (59) is disposed circumferentially on the inner wall of the clamping ring (51), and the second end of each of the connecting plates (59) is connected to the outer wall of the inner ring (58). Each of the clamping plates (52) is sequentially and movably inserted through the clamping ring (51) and the inner ring (58), and is partially placed inside the inner ring (58).

6. The pipe welding apparatus according to claim 2, characterized in that, In each of the clamping devices, one of the clamping mechanisms (5) is tunably connected to the corresponding support frame (4).

7. The pipe welding apparatus according to claim 6, characterized in that, Also includes: The drive mechanism (6), the moving body (7), the support ring (8), the collar (9), the support cylinder (10), and the sliding rod (11) are included; among them, The top of the movable body (7) is movably disposed on the top of the support device (1), the bottom of the movable body (7) is connected to the support ring (8), and the collar (9) is rotatably disposed inside the support ring (8) and connected to the clamping mechanism (5). The driving mechanism (6) is located on the top of the support device (1) and connected to the moving body (7), and is used to drive the moving body (7) to move closer to or further away from the support frame (4); The first end of the support cylinder (10) is connected to the bearing frame (4), the first end of the sliding rod (11) is slidably inserted into the support cylinder (10) from the second end of the support cylinder (10), and the second end of the sliding rod (11) is connected to the clamping mechanism (5).

8. The pipe welding apparatus according to claim 7, characterized in that, The drive mechanism (6) includes: a lead screw (61) and a throttle (62); wherein, The lead screw (61) is rotatably mounted on the top of the support device (1); The moving body (7) has a threaded hole that is screwed to the lead screw (61); The throttle (62) is connected to the lead screw (61) and is used to drive the lead screw (61) to rotate, so as to move the moving body (7).

9. The pipe welding apparatus according to claim 1, characterized in that, Each of the aforementioned support frames (4) includes: a U-shaped mounting body (41), a support cylinder (42), and two parallel support rings (43); wherein, The closed end of the mounting body (41) is connected to the top of the support device (1); The two bearing rings (43) are respectively disposed at the two ends of the mounting body (41); The bearing cylinder (42) is rotatably disposed within the two bearing rings (43).

10. The pipe welding apparatus according to claim 1, characterized in that, The driving device (3) includes: a motor (31), a first pulley (32), a second pulley (33), and a belt (34); wherein the first pulley (32) is disposed on one of the support frames (4), the motor (31) is disposed at the bottom of the support device (1) and its driving end is connected to the second pulley (33), and the belt (34) is wound between the first pulley (32) and the second pulley (33); and / or, The support device (1) includes a top plate (110), a bottom plate (120), and a plurality of support columns (130); wherein each of the support columns (130) is disposed between the top plate (110) and the bottom plate (120); the welding machine (2) and the two bearing frames (4) are both disposed on the top plate (110).

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