A pipeline full-position automatic welding machine

Abstract

The present invention discloses a pipeline full-position automatic welding machine, which relates to the technical field of pipeline welding. The present invention comprises a base, two support ring frames are symmetrically arranged on the upper side of the base, mounting grooves are arranged on the peripheral side of the support ring frames, clamping mechanisms are arranged on the two support ring frames, the clamping mechanisms comprise a rotating ring and a push rod, the rotating ring is rotatably connected to the support ring frame through the mounting groove, a plurality of push rods are equidistantly inserted on the peripheral side of the support ring frame, a top column is connected to the lower end of the push rod, a linkage rod is hinged on the top column, a top plate is connected to the end of the top column through a first spring, a driving mechanism is arranged on the left support ring frame, a welding mechanism is arranged between the two support ring frames, a rotating mechanism is arranged on the left side of the welding mechanism, and a swing mechanism is arranged on the right side of the welding mechanism. The present invention can be applicable to pipelines of different diameters through the provided clamping mechanism and welding mechanism, and can stably clamp and efficiently weld pipelines of different diameters.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline welding, and in particular relates to a pipeline all-position automatic welding machine. Background Art

[0002] With the rapid development of my country's economy, petroleum and chemical equipment are developing in the direction of large-scale and integration, which makes the pipeline develop in the direction of large diameter, high strength and high pressure, and poses new challenges to pipeline construction technology. In pipeline construction, welding quality is one of the most important links to ensure the quality of the project, and welding efficiency also directly affects the construction progress, that is, the quality and progress of the project depend to a great extent on welding quality and welding progress. Traditional manual welding methods are slow, low in quality, low in efficiency and restricted by operators, and have gradually failed to meet the requirements of pipeline construction.

[0003] A pipeline full-position automatic welding machine disclosed in a Chinese patent with publication number CN205032873U includes a welding pipeline, a guide rail, and a fixing rod. The guide rail is composed of two semicircular rings, and a positioning seat and a fastener are arranged at the interface of the two semicircular rings of the guide rail. A fixing seat is arranged on the bottom surface of the guide rail. The guide rail is supported on the outer circular surface of the welding pipeline through the fixing rod. The lower end of the fixing rod is connected to the fixing seat on the bottom surface of the guide rail. The horizontal plane of the upper end of the fixing rod is higher than the upper plane of the guide rail. A welding trolley is arranged on the guide rail. The utility model has beautiful weld appearance, high welding speed, stable quality, simple operation, and convenient clamping.

[0004] The above technical solution still has the following problems:

[0005] 1. It can only weld pipes with fixed diameters, and is not suitable for welding pipes with multiple diameters;

[0006] 2. Cold soldering and desoldering are prone to occur during the welding process, resulting in low welding quality and efficiency. Summary of the invention

[0007] In view of the above problems, the present invention provides a pipeline full-position automatic welding machine to solve the problems that the current pipeline welding machine cannot be applied to welding work of various diameters and has low welding quality and efficiency.

[0008] The technical solution adopted to solve the above technical problems is: two supporting ring frames are symmetrically arranged on the upper side of the base, and an installation groove is opened on the circumference of the supporting ring frames, and a clamping mechanism is arranged on the two supporting ring frames, and the clamping mechanism includes a rotating ring and a push rod, and the rotating ring is rotatably connected to the supporting ring frame through the installation groove, the rotating ring and the supporting ring frame are coaxially arranged, and a plurality of push rods are equidistantly inserted on the circumference of the supporting ring frame, and the push rod is slidably connected to the supporting ring frame, and the lower end of the push rod is connected to a top column, and the top column is hinged with a connecting rod, and the end of the connecting rod is hinged with the inner side of the rotating ring, and the end of the top column is connected to the top plate through a first spring, and the corresponding push rods on the two clamping mechanisms are connected through a connecting rod, and a driving mechanism is arranged on the left side of the supporting ring frame, and a welding mechanism is arranged between the two supporting ring frames, a rotating mechanism is arranged on the left side of the welding mechanism, and a swing mechanism is arranged on the right side of the welding mechanism.

[0009] Furthermore, the driving mechanism includes a top cover and a transmission rod, and a plurality of sliding shafts are connected to the left side of the left support ring frame. The sliding shafts pass through the top cover, and the top cover is slidably connected to the sliding shafts. One end of the transmission rod is hinged to the peripheral side of the top cover, and the other end of the transmission rod is hinged to one of the connecting rods.

[0010] Furthermore, the welding mechanism includes a first fixed ring and a second spring, the first fixed ring is coaxially arranged with the supporting ring frame, the left end of the second spring is connected to the first fixed ring, the right end of the second spring is connected to the connecting frame, the first fixed ring is penetrated by a guide rod, the first fixed ring is fixedly connected to the guide rod, the left end of the guide rod is connected to a rotating mechanism, the right end of the guide rod is slidably connected to the connecting frame, the right end of the connecting frame is provided with a swinging mechanism, a welding gun is penetrated on the lower side of the connecting frame, the welding gun is slidably connected to the connecting frame, and the welding gun sleeve is provided with a third spring.

[0011] Furthermore, the rotating mechanism includes a mounting box and a planetary gear, one side of the mounting box is connected to the left supporting ring frame, a planetary gear is installed in the mounting box, the sun gear of the planetary gear is fixedly connected to the mounting box, the left end of the guide rod is fixedly connected to the pinion gear of the planetary gear, the first fixed ring is rotatably connected to the mounting box, an outer gear ring is fixedly connected to the circumference of the outer gear ring of the planetary gear, the outer gear ring is rotatably connected to the mounting box, a motor is installed on the base, the motor output shaft sleeve is provided with a spur gear, the spur gear is in the mounting box, and the spur gear is meshed with the outer gear ring.

[0012] Furthermore, the swing mechanism includes a second fixed ring and a toggle plate, the second fixed ring is coaxially arranged with the supporting ring frame, the lower side of the second fixed ring is fixedly connected to the base, the second fixed ring is located on the right side of the connecting frame, a plurality of toggle plates are connected to the left side of the second fixed ring, the toggle plates are tilted, the right end of the connecting frame is rotatably connected to a guide wheel, and the guide wheel is movably connected to the toggle plate.

[0013] Furthermore, both sides of the lower end of the welding gun are connected to mounting parts, and rollers are rotatably connected inside the mounting parts.

[0014] The beneficial effects of the present invention are:

[0015] (1) The clamping mechanism and welding mechanism provided in the present invention enable the device to be applicable to pipes of different diameters, and can stably clamp and efficiently weld pipes of different diameters.

[0016] (2) The welding mechanism and the swinging mechanism provided in the present invention can enable the device to weld a welding track that swings left and right, thereby reducing the occurrence of cold welding and desoldering, making the welding texture finer and the weld more solid.

[0017] (3) The welding mechanism of the present invention cooperates with the rotating mechanism to drive the welding gun to rotate, thereby performing efficient welding work on the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of a support ring frame of the present invention.

[0020] Figure 3 It is a schematic diagram of the clamping mechanism of the present invention from a first viewing angle.

[0021] Figure 4 It is a schematic diagram of the clamping mechanism of the present invention from a second viewing angle.

[0022] Figure 5 It is a schematic diagram of the first fixed ring of the present invention.

[0023] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0024] Figure 7 It is a schematic diagram of an installation box of the present invention.

[0025] Figure 8 Schematic diagram of the outer gear ring of the present invention.

[0026] Fig. 9 Schematic diagram of the planetary gear of the present invention.

[0027] Fig.10 It is a schematic diagram of the working state of the present invention.

[0028] Fig.11 yes Fig.10 Enlarged view of point B in the middle.

[0029] 1. Base; 2. Support ring frame; 3. Mounting groove; 4. Clamping mechanism; 41. Rotating ring; 42. Push rod; 43. Top column; 44. Linking rod; 45. First spring; 46. Top plate; 47. Connecting rod; 5. Driving mechanism; 51. Top cover; 52. Transmission rod; 53. Sliding shaft; 6. Welding mechanism; 61. First fixed ring; 62. Second spring; 63. Connecting frame; 64. Guide rod; 65. Welding gun; 66. Third spring; 7. Rotating mechanism; 71. Mounting box; 72. Planetary gear; 73. External gear ring; 74. Motor; 75. Spur gear; 8. Swinging mechanism; 81. Second fixed ring; 82. Paddle plate; 83. Guide wheel; 9. Mounting part; 10. Roller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the present embodiment provides a pipeline full-position automatic welding machine, two support ring frames 2 are symmetrically arranged on the upper side of the base 1, and mounting grooves 3 are opened on the peripheral sides of the support ring frames 2. A clamping mechanism 4 is arranged on the two support ring frames 2, and the clamping mechanism 4 includes a rotating ring 41 and a push rod 42. The rotating ring 41 is rotatably connected to the support ring frame 2 through the mounting groove 3. The rotating ring 41 and the support ring frame 2 are coaxially arranged. The arranged support ring frame 2 plays a role in supporting the clamping mechanism 4, and the design of the two clamping mechanisms 4 can clamp the two sections of the pipeline to be welded separately. The arranged clamping mechanism The structure 4 can stably clamp the pipe to be welded, and the two clamping mechanisms 4 can realize synchronous movement, thereby synchronously clamping the two sections of the pipe, making the two sections of the pipe docking more accurate and improving the welding quality. A plurality of push rods 42 are equidistantly inserted on the side of the support ring frame 2. In this embodiment, the number of push rods 42 is three, and the push rods 42 are slidably connected to the support ring frame 2. The lower end of the push rod 42 is connected to a top column 43, and the top column 43 is hinged with a connecting rod 44. The end of the connecting rod 44 is hinged to the inner side of the rotating ring 41, and the end of the top column 43 is connected to a top plate 46 through a first spring 45. The two clamping The corresponding push rods 42 on the mechanism 4 are connected by a connecting rod 47, and the rotating ring 41 and the linkage rod 44 are arranged to work together, so that all the push rods 42, the top column 43, and the top plate 46 can realize synchronous movement to clamp the two sections of the pipeline. The working process is that when one of the push rods 42 moves toward the inner side of the support ring frame 2, the rotation of the rotating ring 41 is realized through the linkage rod 44 connected thereto, and the rotating ring 41 realizes the movement of the remaining push rods 42 when rotating. The first spring 45 is arranged to make the top plate 46 realize soft contact with the welding pipeline to prevent damage to the components. The first spring 45 is arranged A driving mechanism 5 is arranged on the support ring frame 2 on the left side of 45, and the driving mechanism 5 provides power for the movement of the clamping mechanism 4. A welding mechanism 6 is arranged between the two support ring frames 2, and the welding mechanism 6 welds the two sections of the pipeline efficiently and with high quality. A rotating mechanism 7 is arranged on the left side of the welding mechanism 6, and the rotating mechanism 7 drives the welding mechanism 6 to rotate, so as to realize the welding operation of the welding gun 65 along one circle of the pipeline. A swinging mechanism 8 is arranged on the right side of the welding mechanism 6, and the swinging mechanism 8 makes the welding gun 65 swing left and right, so that the welding texture is finer and the weld is more solid.

[0032] like Figure 1 , Figure 2 , Figure 3 , Fig.10As shown, the driving mechanism 5 includes a top cover 51 and a transmission rod 52. A plurality of sliding shafts 53 are connected to the left side of the left support ring frame 2. In this embodiment, the number of the sliding shafts 53 is three. The sliding shafts 53 pass through the top cover 51. The top cover 51 is slidably connected to the sliding shafts 53. One end of the transmission rod 52 is hinged to the side of the top cover 51, and the other end of the transmission rod 52 is hinged to one of the connecting rods 47. The top cover 51 receives the force of the welding pipe and then slides, thereby driving the transmission rod 52 to act on the connecting rod 47, so that the push rod 42 moves, thereby realizing the clamping operation of the clamping mechanism 4. This design enables integrated feeding and clamping, convenient operation, and stable and fast clamping.

[0033] like Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown, the welding mechanism 6 includes a first fixed ring 61 and a second spring 62, the first fixed ring 61 is coaxially arranged with the support ring frame 2, the left end of the second spring 62 is connected to the first fixed ring 61, the right end of the second spring 62 is connected to the connecting frame 63, the first fixed ring 61 is penetrated by a guide rod 64, the first fixed ring 61 is fixedly connected to the guide rod 64, the left end of the guide rod 64 is connected to a rotating mechanism 7, the right end of the guide rod 64 is slidably connected to the connecting frame 63, the right end of the connecting frame 63 is provided with a swing mechanism 8, the lower side of the connecting frame 63 is penetrated by a welding gun 65, and the welding gun 65 is penetrated by the welding gun 65. The gun 65 is slidably connected to the connecting frame 63, and the welding gun 65 is provided with a third spring 66. The first fixed ring 61 receives the force of the rotating mechanism 7 through the guide rod 64 to realize rotation, thereby driving the connecting frame 63 and the welding gun 65 to rotate. The second spring 62 allows the connecting frame 63 to have space for left and right movement, and cooperates with the swing mechanism 8. The guide rod 64 also plays a role in stabilizing the connecting frame 63. The third spring 66 allows the welding gun 65 to float up and down on the connecting frame 63, thereby being suitable for welding pipes of different diameters.

[0034] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, the rotating mechanism 7 includes a mounting box 71 and a planetary gear 72. The planetary gear 72 is a known technology, and its components include a central sun gear, an outer pinion and an outer gear ring. One side of the mounting box 71 is connected to the left support ring frame 2. The planetary gear 72 is installed in the mounting box 71. The sun gear of the planetary gear 72 is fixedly connected to the mounting box 71. The left end of the guide rod 64 is fixedly connected to the pinion of the planetary gear 72. The first fixed ring 61 is rotatably connected to the mounting box 71. The outer gear ring of the planetary gear 72 is circumferentially connected to the outer gear ring of the planetary gear 72. The outer gear ring 73 is fixedly connected to the side, and the outer gear ring 73 is rotatably connected to the installation box 71. The base 1 is installed with a motor 74. The output shaft sleeve of the motor 74 is provided with a spur gear 75. The spur gear 75 is in the installation box 71. The spur gear 75 is meshed with the outer gear ring 73. The set motor 74 drives the spur gear 75 to rotate, thereby causing the outer gear ring 73 to rotate. The outer gear ring 73 drives the outer gear ring to rotate, thereby realizing the movement of the pinion. The movement of the pinion drives the guide rod 64 connected thereto to move, thereby causing the first fixed ring 61 to rotate.

[0035] like Figure 1 , Figure 5 , Figure 6 , Figure 7 , Fig.10 , Fig.11 As shown, the swing mechanism 8 includes a second fixed ring 81 and a toggle piece 82. The second fixed ring 81 is coaxially arranged with the support ring frame 2. The lower side of the second fixed ring 81 is fixedly connected to the base 1. The second fixed ring 81 is on the right side of the connecting frame 63. A plurality of toggle pieces 82 are connected to the left side of the second fixed ring 81. The toggle pieces 82 are tilted. The right end of the connecting frame 63 is rotatably connected with a guide wheel 83. The guide wheel 83 is movably connected to the toggle piece 82. The tilted toggle piece 82 facilitates the movement of the guide wheel 83. When the connecting frame 63 is driven to rotate by the rotating mechanism 7, the guide wheel 83 contacts the toggle piece 82, so that the connecting frame 63 moves left and right under the action of the second spring 62, and then the welding gun 65 moves left and right. This welding trajectory is particularly important in area repair welding and pipeline connection welding. It welds a finer texture and makes the weld more firm.

[0036] like Figure 1 , Figure 6 , Figure 7 , Fig.11 As shown, mounting parts 9 are connected to both sides of the lower end of the welding gun 65, and rollers 10 are rotatably connected inside the mounting parts 9. The rollers 10 arranged on both sides fit with the two sections of the pipe, so that the welding head of the welding gun 65 maintains a certain welding distance from the outer wall of the pipe, so that it can perform stable and effective continuous welding. The weld height after welding is stable and it is not easy to form a cold weld. The welding process is contact welding throughout the whole process without empty stroke, which increases the welding efficiency.

[0037] The working principle of this embodiment is as follows: when the device is used to weld two sections of pipe, the two sections of pipe are placed in the support ring frame 2, so that one section of the pipe is pressed against the top cover 51 and moves, so that the top cover 51 slides on the sliding shaft 53. At this time, the top cover 51 drives the transmission rod 52 to move, and the transmission rod 52 pushes the connecting rod 47 connected thereto to move, so that the connecting rod 47 moves toward the axis of the support ring frame 2, and the connecting rod 47 drives the two push rods 42 connected thereto to move toward the axis of the support ring frame 2, and the connecting rod 44 hinged to the two push rods 42 moves, thereby acting on the rotating ring 41, so that the rotating ring 41 rotates in the support ring frame 2, and the rotating ring 41 drives all the connecting rods 44 to move, so that all the push rods 42, the top column 43, and the top plate 46 move toward the axis of the support ring frame 2, thereby realizing the clamping operation of the top plate 46 on the pipe.

[0038] Then the motor 74 is operated to rotate, the motor 74 drives the spur gear 75 to rotate, the spur gear 75 rotates and drives the outer gear ring 73 to rotate, the outer gear ring 73 drives the outer gear ring of the planetary gear 72 to rotate, and then the pinion of the planetary gear 72 moves, and the pinion of the planetary gear 72 moves and drives the guide rod 64 and the first fixed ring 61 to rotate. The first fixed ring 61 rotates and drives the connecting frame 63 and the welding gun 65 to rotate, and the two sections of the pipeline are welded for one circle. At this time, the two rollers 10 move on the walls of the two sections of the pipeline.

[0039] At the same time, the guide wheel 83 and the toggle plate 82 move relative to each other. Due to the force of the second spring 62, the connecting frame 63 drives the welding gun 65 to achieve left and right reciprocating motion, thereby making the welding texture finer and the weld more solid.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A pipeline all-position automatic welding machine, characterized by: The invention comprises a base (1), wherein two support ring frames (2) are symmetrically arranged on the upper side of the base (1), and the support ring frames (2) are provided with mounting grooves (3) on the circumference thereof. A clamping mechanism (4) is arranged on each of the two support ring frames (2), and the clamping mechanism (4) comprises a rotating ring (41) and a push rod (42), wherein the rotating ring (41) is rotatably connected to the support ring frame (2) through the mounting groove (3), the rotating ring (41) and the support ring frame (2) are coaxially arranged, and a plurality of push rods (42) are equidistantly inserted on the circumference of the support ring frame (2), and the push rods (42) are slidably connected to the support ring frame (2), and the push rods (42) are rotatably connected to the support ring frame (2). ) is connected to a top column (43) at the lower end, the top column (43) is hinged with a connecting rod (44), the end of the connecting rod (44) is hinged with the inner side of the rotating ring (41), the end of the top column (43) is connected to a top plate (46) through a first spring (45), the corresponding push rods (42) on the two clamping mechanisms (4) are connected through a connecting rod (47), a driving mechanism (5) is provided on the left support ring frame (2), a welding mechanism (6) is provided between the two support ring frames (2), a rotating mechanism (7) is provided on the left side of the welding mechanism (6), and a swing mechanism (8) is provided on the right side of the welding mechanism (6); The welding mechanism (6) comprises a first fixed circular ring (61) and a second spring (62), wherein the first fixed circular ring (61) is coaxially arranged with the supporting ring frame (2), the left end of the second spring (62) is connected to the first fixed circular ring (61), and the right end of the second spring (62) is connected to the connecting frame (63), a guide rod (64) is arranged through the first fixed circular ring (61), the first fixed circular ring (61) is fixedly connected to the guide rod (64), the left end of the guide rod (64) is connected to a rotating mechanism (7), the right end of the guide rod (64) is slidably connected to the connecting frame (63), the right end of the connecting frame (63) is provided with a swing mechanism (8), a welding gun (65) is arranged through the lower side of the connecting frame (63), the welding gun (65) is slidably connected to the connecting frame (63), and the welding gun (65) is sleeved with a third spring (66); The swing mechanism (8) comprises a second fixed circular ring (81) and a toggle plate (82); the second fixed circular ring (81) is coaxially arranged with the support ring frame (2); the lower side of the second fixed circular ring (81) is fixedly connected to the base (1); the second fixed circular ring (81) is located on the right side of the connecting frame (63); a plurality of toggle plates (82) are connected to the left side of the second fixed circular ring (81); the toggle plates (82) are inclined; a guide wheel (83) is rotatably connected to the right end of the connecting frame (63); and the guide wheel (83) is movably connected to the toggle plate (82).

2. The pipeline all-position automatic welding machine according to claim 1 is characterized in that: The driving mechanism (5) comprises a top cover (51) and a transmission rod (52); a plurality of sliding shafts (53) are connected to the left side of the left support ring frame (2); the sliding shafts (53) penetrate the top cover (51); the top cover (51) is slidably connected to the sliding shafts (53); one end of the transmission rod (52) is hinged to the circumference of the top cover (51); and the other end of the transmission rod (52) is hinged to one of the connecting rods (47).

3. The pipeline all-position automatic welding machine according to claim 1 is characterized in that: The rotating mechanism (7) comprises a mounting box (71) and a planetary gear (72). One side of the mounting box (71) is connected to the left supporting ring frame (2). The mounting box (71) is provided with a planetary gear (72). The sun gear of the planetary gear (72) is fixedly connected to the mounting box (71). The left end of the guide rod (64) is fixedly connected to the pinion gear of the planetary gear (72). The first fixed ring (61) is rotationally connected to the mounting box (71). The outer gear ring (73) is fixedly connected to the outer gear ring of the planetary gear (72). The outer gear ring (73) is rotationally connected to the mounting box (71). The base (1) is provided with a motor (74). The output shaft sleeve of the motor (74) is provided with a spur gear (75). The spur gear (75) is located in the mounting box (71) and meshes with the outer gear ring (73).

4. The pipeline all-position automatic welding machine according to claim 1 is characterized in that: Both sides of the lower end of the welding gun (65) are connected to mounting parts (9), and a roller (10) is rotatably connected inside the mounting part (9).

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