Large pipe fitting circular seam welding positioner

Abstract

The utility model discloses a large pipe fitting circular seam welding positioner in the related technical field of welding positioners, which comprises a first main supporting box and a second main supporting box, a side supporting frame is arranged between the first main supporting box and the second main supporting box, a first active supporting seat is arranged at one end, close to the side supporting frame, of the first main supporting box, and a second active supporting seat is arranged at one end, close to the side supporting frame, of the second main supporting box. A first driving roller is rotationally connected to the first driving supporting seat, and a second driving supporting seat is arranged at the end, close to the side supporting frame, of the second main supporting box. According to the machine, the extending supporting frame is arranged on the outer side of the main supporting box, the movable sliding groove is formed in the extending supporting frame, the auxiliary supporting box capable of being horizontally adjusted along the movable sliding groove is arranged above the extending supporting frame, and the auxiliary supporting roller and the auxiliary supporting base are arranged on the auxiliary supporting box. The supporting distance between the auxiliary supporting roller and the driving roller can be adjusted according to the length specification of a welded workpiece, and then the welding supporting use requirements of large pipe fittings of different specifications are met.

Description

Technical Field

[0001] The utility model belongs to the technical field related to welding positioners, and specifically relates to a large-scale pipe girth welding positioner. Background Art

[0002] The positioner is a device used to drag the workpiece to be welded so that the weld to be welded moves to the ideal position for welding. The initial position of the weld to be welded may be in any position in space. After the rotation and position movement, the weld to be welded in any position is changed to a fillet weld, a flat weld or a flat fillet weld. It changes the welding operations that may require vertical welding, overhead welding, etc., which are difficult to ensure the welding quality. For large pipe fittings, butt welding at both ends requires the synchronous rotation of the pipe fittings. The existing positioners are mostly dual-power structures, and the two active rollers are different power sources. There are certain errors in the rotation process, which will have a certain impact on the welding quality of the pipe fittings. In addition, the existing pipe fitting circumferential seam positioners are mostly fixed structure designs. For products of different lengths and specifications, eccentric and offset supports are prone to unstable center of gravity, which may cause the workpiece to fall, posing certain safety hazards.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a large-scale pipe girth welding positioner. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A large-scale pipe girth welding positioner comprises a main support box 1 and a main support box 2, a side support frame is arranged between the main support box 1 and the main support box 2, an active support seat 1 is arranged on the end of the main support box 1 close to the side support frame, an active roller 1 is rotatably connected and installed on the active support seat 1, an active support seat 2 is arranged on the end of the main support box 2 close to the side support frame, an active roller 2 is rotatably connected and installed on the active support seat 2, a driven support seat and a driven roller are arranged on the ends of the main support box 1 and the main support box 2 away from the side support frame, an extension support frame 1 is fixedly arranged on the outer side of the main support box 1, and an extension support frame 2 is fixedly arranged on the outer side of the main support box 2, and auxiliary support devices are correspondingly arranged above the extension support frame 1 and the extension support frame 2.

[0006] As a further solution of the utility model: the auxiliary support device includes an auxiliary support box 1, an auxiliary support box 2, auxiliary support rollers and an auxiliary support seat, and a movable slide groove is provided on the extended support frame 1 and the extended support frame 2. The auxiliary support box 1 is slidably connected to the extended support frame 1, and the auxiliary support box 2 is slidably connected to the extended support frame 2. The bottom surfaces of the auxiliary support box 1 and the auxiliary support box 2 are fixedly provided with a slider structure compatible with the movable slide groove to ensure the stability of the auxiliary support box 1 and the auxiliary support box 2 during the horizontal adjustment process.

[0007] As a further solution of the utility model: the auxiliary support seats are correspondingly installed above the auxiliary support box 1 and the auxiliary support box 2 near the two end heads, the auxiliary support roller is rotatably connected and installed on the auxiliary support seat, the size specification of the auxiliary support roller is consistent with the active roller 1 and the active roller 2, and the auxiliary support roller is coaxial with the active roller 1 and the active roller 2, ensuring a good supporting effect on large pipe fittings.

[0008] As a further solution of the utility model: automatic telescopic rods are fixedly arranged on the outer sides of the main support box one and the main support box two, the other end of the automatic telescopic rod on the main support box one is fixedly connected to the outer wall of the auxiliary support box one, and the other end of the automatic telescopic rod on the main support box two is fixedly connected to the outer wall of the auxiliary support box two, and the automatic telescopic rod is used to provide power support for adjusting the horizontal position of the auxiliary support box one and the auxiliary support box two.

[0009] As a further solution of the utility model: a driving gear 1 is rotatably installed on the outer side of the active support seat 1, a driven gear 1 is meshingly arranged on the side of the driving gear 1, the center position of the driven gear 1 is keyed to the rotating shaft, a transmission structure of the driving gear 1 and the driven gear 1 of the same specification is arranged on the active support seat 2 at the other end of the rotating shaft, and a bearing support seat cooperating with the rotating shaft is arranged on the side support frame to ensure the stability of the rotation of the rotating shaft.

[0010] As a further solution of the utility model: two bearing supports are provided, a transmission box is provided at the rotating shaft between the two bearing supports, a gear transmission structure consisting of a driven gear 2 and a driving gear 2 is provided in the transmission box, a support rod and an electric motor are provided below the transmission box, and the electric motor is used to provide power support for the rotation of the driving gear 2.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0012] The transformer of the utility model is provided with an extension support frame on the outer side of the main support box, a movable slide groove is provided on the extension support frame, an auxiliary support box which can be horizontally adjusted along the movable slide groove is provided above the extension support frame, and auxiliary support rollers and auxiliary support seats are provided on the auxiliary support box. The support spacing between the auxiliary support rollers and the active rollers can be adjusted according to the length specifications of the workpiece to be welded, thereby meeting the welding support use requirements of large pipes of different specifications.

[0013] The active roller 1 and the active roller 2 of the utility model are driven by the same power source, and the rotating shaft is driven to rotate through the gear transmission in the transmission box. The two ends of the rotating shaft transmit power through the gear transmission structure respectively, so that the active roller 1 and the active roller 2 can rotate synchronously. The rotation error of the same source power is small, which provides guarantee for the welding process.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3 It is a side view of the utility model;

[0019] Figure 4 It is a schematic diagram of the meshing of gears in the transmission box of the utility model.

[0020] In the figure: 1. Main support box 1; 2. Main support box 2; 3. Active support seat 1; 4. Active roller 1; 5. Active support seat 2; 6. Active roller 2; 7. Side support frame; 8. Auxiliary support box 1; 9. Auxiliary support seat; 10. Auxiliary support roller; 11. Extension support frame 1; 12. Moving slide; 13. Extension support frame 2; 14. Auxiliary support box 2; 15. Active gear 1; 16. Driven gear 1; 17. Rotating shaft; 18. Bearing support; 19. Transmission box; 20. Motor; 21. Support rod; 22. Automatic telescopic rod; 23. Driven roller; 24. Driven support seat; 25. Driven gear 2; 26. Active gear 2.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] like Figures 1 to 4 As shown, a large-scale pipe girth welding positioner comprises a main support box 1 and a main support box 2, a side support frame 7 is arranged between the main support box 1 and the main support box 2, an active support seat 3 is arranged on the end of the main support box 1 close to the side support frame 7, an active roller 4 is rotatably connected and installed on the active support seat 3, an active support seat 25 is arranged on the end of the main support box 2 close to the side support frame 7, an active roller 26 is rotatably connected and installed on the active support seat 25, a driven support seat 24 and a driven roller 23 are arranged on the ends of the main support box 1 and the main support box 2 far away from the side support frame 7, an extension support frame 11 is fixedly arranged on the outer side of the main support box 1, an extension support frame 2 13 is fixedly arranged on the outer side of the main support box 2, and auxiliary support devices are correspondingly arranged above the extension support frame 11 and the extension support frame 2 13.

[0024] Among them, the auxiliary support device includes an auxiliary support box 18, an auxiliary support box 2 14, an auxiliary support roller 10 and an auxiliary support seat 9. A movable slide groove 12 is provided on the extended support frame 11 and the extended support frame 2 13. The auxiliary support box 18 is slidably connected to the extended support frame 11, and the auxiliary support box 2 14 is slidably connected to the extended support frame 2 13. The bottom surfaces of the auxiliary support boxes 18 and 14 are fixedly provided with slider structures compatible with the movable slide groove 12 to ensure the stability of the auxiliary support boxes 18 and 14 during the horizontal adjustment process.

[0025] Auxiliary support seats 9 are installed correspondingly above the auxiliary support box 1 8 and the auxiliary support box 2 14 near the two end heads, and the auxiliary support rollers 10 are rotatably connected and installed on the auxiliary support seats 9. The size specifications of the auxiliary support rollers 10 are consistent with those of the active rollers 1 4 and 6, and the auxiliary support rollers 10 are coaxial with the active rollers 1 4 and 6, ensuring a good supporting effect on large pipe fittings.

[0026] Automatic telescopic rods 22 are fixedly arranged on the outer sides of the main support box 1 and the main support box 2. The other end of the automatic telescopic rod 22 on the main support box 1 is fixedly connected to the outer wall of the auxiliary support box 8. The other end of the automatic telescopic rod 22 on the main support box 2 is fixedly connected to the outer wall of the auxiliary support box 2 14. The automatic telescopic rod 22 is used to provide power support for the adjustment of the horizontal position of the auxiliary support box 1 8 and the auxiliary support box 2 14.

[0027] A driving gear 15 is installed in a rotating connection on the outer side of the active support seat 13, and a driven gear 16 is meshed with the side of the active gear 15. The center position of the driven gear 16 is key-connected with the rotating shaft 17. The active support seat 25 at the other end of the rotating shaft 17 is provided with a transmission structure of a driving gear 15 and a driven gear 16 of the same specifications. A bearing support 18 that cooperates with the rotating shaft 17 is provided on the side support frame 7 to ensure the stability of the rotation of the rotating shaft 17.

[0028] Two bearing supports 18 are provided, and a transmission box 19 is provided at the rotating shaft 17 between the two bearing supports 18. A gear transmission structure consisting of a driven gear 25 and a driving gear 26 is provided in the transmission box 19. A support rod 21 and a motor 20 are provided below the transmission box 19. The motor 20 is used to provide power support for the rotation of the driving gear 26.

[0029] The working principle of the utility model is: when large pipes are butt-welded, according to the length and size of the pipes, the auxiliary support box 18 is driven to move horizontally along the movable slide 12 on the extension support frame 11 through the extension of the automatic telescopic rod 22, and the auxiliary support box 14 is moved horizontally along the movable slide 12 on the extension support frame 13, and the spacing between the auxiliary support roller 10 and the active roller 14 is adjusted, and the spacing between the auxiliary support roller 10 and the active roller 26 is adjusted to ensure stable support for large pipes. The two pipes are placed on a corresponding group of support rollers, and the motor 20 The main shaft drives the output shaft to rotate through the coupling, the driving gear 26 is installed on the output shaft, the driving gear 26 and the driven gear 25 are meshed with each other, the driving gear 26 and the driven gear 25 are both bevel gears, the driven gear 25 and the rotating shaft 17 are connected by two keys, and then the rotating shaft 17 is driven to rotate, the two ends of the rotating shaft 17 are symmetrically installed with driven gears 16, the driven gear 16 and the driving gear 15 are meshed with each other, and the two driving gears 15 drive the driving roller 14 and the driving roller 26 to rotate synchronously, and the driving gear 15 and the driven gear 16 are both cylindrical gears;

[0030] A protective cover can be set outside the driving gear 15, the driven gear 16, and the rotating shaft 17 to protect the transmission components, ensure the transmission accuracy, and extend the service life of the transmission structure. The automatic telescopic rod 22 uses an electric telescopic rod, and the automatic telescopic rod 22 and the motor 20 are electrically connected to the external power supply;

[0031] The transformer of the utility model is provided with an extension support frame on the outside of the main support box, and a movable slide groove 12 is opened on the extension support frame. An auxiliary support box which can be horizontally adjusted along the movable slide groove 12 is provided above the extension support frame. Auxiliary support rollers 10 and auxiliary support seats 9 are provided on the auxiliary support box. The support spacing between the auxiliary support rollers 10 and the active rollers can be adjusted according to the length specifications of the welded workpieces, so as to meet the welding support use requirements of large pipes of different specifications. The active roller 14 and the active roller 26 are driven by the same power source, and the rotating shaft 17 is driven to rotate through the gear transmission in the transmission box 19. The two ends of the rotating shaft 17 are respectively powered by the gear transmission structure, so as to realize the synchronous rotation of the active roller 14 and the active roller 26. The rotation error of the same source power is small, which provides guarantee for the welding process.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A large pipe girth welding positioner, comprising a main support box 1 (1) and a main support box 2 (2), characterized in that: A side support frame (7) is arranged between the main support box 1 (1) and the main support box 2 (2); an active support seat 1 (3) is arranged at one end of the main support box 1 (1) close to the side support frame (7); an active roller 1 (4) is rotatably connected and installed on the active support seat 1 (3); an active support seat 2 (5) is arranged at one end of the main support box 2 (2) close to the side support frame (7); an active roller 2 (6) is rotatably connected and installed on the active support seat 2 (5); a driven support seat (24) and a driven roller (23) are arranged at one end of the main support box 1 (1) and the main support box 2 (2) away from the side support frame (7); an extension support frame 1 (11) is fixedly arranged on the outer side of the main support box 1 (1); an extension support frame 2 (13) is fixedly arranged on the outer side of the main support box 2 (2); and auxiliary support devices are correspondingly arranged above the extension support frame 1 (11) and the extension support frame 2 (13).

2. A large pipe girth welding positioner according to claim 1, characterized in that: The auxiliary support device comprises an auxiliary support box 1 (8), an auxiliary support box 2 (14), an auxiliary support roller (10) and an auxiliary support seat (9); the extension support frame 1 (11) and the extension support frame 2 (13) are both provided with a movable slide groove (12); the auxiliary support box 1 (8) is slidably connected to the extension support frame 1 (11); the auxiliary support box 2 (14) is slidably connected to the extension support frame 2 (13); and the bottom surfaces of the auxiliary support box 1 (8) and the auxiliary support box 2 (14) are both fixedly provided with a slider structure adapted to the movable slide groove (12).

3. A large pipe girth welding positioner according to claim 2, characterized in that: The auxiliary support seats (9) are correspondingly mounted above the auxiliary support box 1 (8) and the auxiliary support box 2 (14) at positions close to both ends. The auxiliary support roller (10) is rotatably connected and mounted on the auxiliary support seat (9). The size of the auxiliary support roller (10) is consistent with that of the active roller 1 (4) and the active roller 2 (6), and the auxiliary support roller (10) is coaxial with the active roller 1 (4) and the active roller 2 (6).

4. A large pipe girth welding positioner according to claim 3, characterized in that: An automatic telescopic rod (22) is fixedly arranged on the outer side of the main support box one (1) and the main support box two (2); the other end of the automatic telescopic rod (22) on the main support box one (1) is fixedly connected to the outer wall of the auxiliary support box one (8); and the other end of the automatic telescopic rod (22) on the main support box two (2) is fixedly connected to the outer wall of the auxiliary support box two (14).

5. A large pipe girth welding positioner according to claim 4, characterized in that: A driving gear 1 (15) is rotatably connected to the outer side of the active support seat 1 (3), a driven gear 1 (16) is meshed with the side of the active gear 1 (15), the center of the driven gear 1 (16) is key-connected to the rotating shaft (17), a transmission structure of the driving gear 1 (15) and the driven gear 1 (16) of the same specification is arranged on the active support seat 2 (5) at the other end of the rotating shaft (17), and a bearing support (18) matched with the rotating shaft (17) is arranged on the side support frame (7).

6. A large pipe girth welding positioner according to claim 5, characterized in that: Two bearing supports (18) are provided, and a transmission box (19) is provided at the rotating shaft (17) between the two bearing supports (18). A gear transmission structure consisting of a second driven gear (25) and a second driving gear (26) is provided in the transmission box (19), and a support rod (21) and a motor (20) are provided below the transmission box (19).

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