Pipeline welding equipment and welding method

Abstract

The present invention relates to the technical field of pipeline processing, and discloses a pipeline welding device and a welding method, including a rotary welding mechanism and two pipe clamping mechanisms, the two pipe clamping mechanisms are respectively located on both sides of the rotary welding mechanism, the rotary welding mechanism includes two groups of support columns, an arc-shaped slider is respectively fixed on the top of the opposite side of the two support columns, a rotating ring is slidably connected between the two support columns, the circumferential outer surface of the rotating ring is provided with an annular groove matched with the arc-shaped slider, and the middle part of the inner wall of the annular groove is provided with an outer tooth ring groove. Beneficial effect: The present invention uses a rotary welding mechanism and a pipe clamping mechanism in coordination, so that the pipeline welding equipment can be adapted to pipelines of different sizes, improves the practicability and application scope of the welding equipment, and realizes the clamping, fixing and welding connection of pipes of different sizes and specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline processing, and in particular to a pipeline welding device and a welding method. Background Art

[0002] Pipes are divided into plastic pipes and metal pipes according to their materials. Steel pipes are a type of steel with a hollow cross-section and a length much greater than its diameter or circumference. Steel pipes are an economical steel material that can be used to transport fluids and powdered solids and to manufacture mechanical parts, etc. Steel pipes can be classified according to their cross-sectional shape into round steel pipes, square steel pipes, rectangular steel pipes and special-shaped steel pipes. Square steel pipes are welded together to meet the length requirements when in use.

[0003] At present, when welding square steel pipes, the following defects usually exist: traditional butt welding machines can only adapt to one of square steel pipes, round steel pipes, rectangular steel pipes and special-shaped steel pipes, and cannot adapt to a variety of different pipes. The scope of use is narrow, which is not conducive to the use of steel pipe manufacturers. Manufacturers need to purchase a variety of different processing equipment to carry out processing, and the production cost is relatively high.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a pipeline welding device and a welding method to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solution adopted by the present invention is as follows:

[0007] A pipeline welding device comprises a rotary welding mechanism and two pipe clamping mechanisms, wherein the two pipe clamping mechanisms are respectively located on both sides of the rotary welding mechanism, and the rotary welding mechanism comprises two groups of support columns, wherein an arc-shaped slider is respectively fixed to the top of the opposite side of the two support columns, and a rotary ring is slidably connected between the two support columns, and an annular groove matching the arc-shaped slider is provided on the circumferential outer surface of the rotary ring, and an outer tooth ring groove is provided in the middle part of the inner wall of the annular groove, and a driving motor is fixed to the bottom of the outer surface of the support column on one side, and a gear is connected to the side output end of the driving motor through a shaft rod, and the gear is meshed with the engaging teeth in the outer tooth ring groove, and a plurality of welding assemblies are provided on the inner wall of the rotary ring.

[0008] Preferably, the welding assembly includes a movable groove opened on the inner wall of the rotating ring, a movable screw is connected to the shaft on the inner wall of the movable groove, a movable motor connected to the movable screw is arranged on the inner wall of one side of the movable groove, a group of guide rods are fixed on the inner wall of the movable groove, a nut movable seat is slidably connected to the guide rod, the side edge of the nut movable seat is threadedly connected to the movable screw, an electric push rod three is fixedly installed in the middle of the outer surface of one side of the nut movable seat, and the telescopic output end of the electric push rod three passes through the opening of the movable groove to the interior of the rotating ring and is connected to the welding gun.

[0009] Preferably, the pipe clamping mechanism includes two groups of symmetrically arranged support frames, an inner cavity is opened inside the support frame, a lifting motor is provided in the middle of both sides of the inner cavity, the output ends on both sides of the lifting motor are connected with a lifting screw rod, the top end of the lifting screw rod passes through the outside of the support frame, a nut moving block is threadedly connected to the lifting screw rod, two groups of relatively arranged placement frames are fixed between the nut moving blocks on both sides, and a pipe clamping assembly is provided on the opposite side of the two placement frames.

[0010] Preferably, the pipe clamping assembly includes a plurality of clamping plates slidably connected to the inner wall of the placement rack, the inner wall of the placement rack is provided with a vertical receiving groove matched with the clamping plate, a connecting column is fixed at the top center of the clamping plate, a positioning plate is fixed at the top of the connecting column, a locking block is fixed at the top center of the positioning plate, a locking groove is provided at the top center of the locking block, two stoppers are symmetrically provided at the opening of the locking groove, an inlet and outlet are provided between the two stoppers, and the inner sides of the vertical receiving groove are provided with a plurality of stoppers. A row of horizontal storage grooves are respectively provided on the wall, one side of the horizontal storage groove is communicated with the sliding groove, a sliding plate is slidably connected in the sliding groove, a connecting rod is fixed to the middle of the outer surface of the sliding plate, the end of the connecting rod movably penetrates into the inside of the horizontal storage groove and is connected and fixed to the limit plate, a spring is sleeved on the outer surface of the connecting rod and located between the limit plate and the inner wall of the horizontal storage groove, an inclined hole is provided on the limit plate, and the end of the limit plate penetrates into the vertical storage groove and is clamped and fixed to the positioning plate.

[0011] Preferably, a connecting groove is provided at the top of the vertical storage groove, a lifting cylinder is fixed at the top center of the connecting groove, the telescopic end of the lifting cylinder is connected and fixed to the vertical sliding seat, the vertical sliding seat is slidably connected in the connecting groove, a vertical rod is fixed at the bottom center of the vertical sliding seat, a receiving groove is provided at the bottom center of the vertical rod, a rotating motor is provided inside the receiving groove, a rotating shaft is fixed to the bottom output end of the rotating motor, the middle part of the rotating shaft is rotatably connected to the inner wall of the receiving groove through a guide ring, the bottom of the rotating shaft movably passes through the bottom of the vertical rod and is connected and fixed to two symmetrically arranged locking plates, the vertical rod and the two locking plates cooperate with the inlet and outlet, and an infrared sensor is respectively provided on both sides of the bottom of the vertical rod.

[0012] Preferably, an H-shaped groove is opened inside the vertical sliding seat, an electric push rod is fixed at the center of the inner bottom of the H-shaped groove, the telescopic end of the electric push rod is connected and fixed to the horizontal plate, the horizontal plate is vertically slidably connected in the H-shaped groove, a vertical plate is fixed at each end of the horizontal plate, the bottom end of the vertical plate passes through the H-shaped groove to the inner wall of the connecting groove and cooperates with the inclined holes on several of the limit plates.

[0013] Preferably, a vertical through hole matching with a plurality of the horizontal receiving grooves is provided on the inner wall of the connecting groove, and the vertical through hole matches with a plurality of the inclined holes.

[0014] Preferably, locking mechanisms are provided between the support frame and the placement frame, and between the inner wall of the placement frame and the clamping plate, the locking mechanism includes a snap-in groove and a groove, a connecting plate is slidably connected inside the groove, two electric push rods are provided between the middle part of one side of the connecting plate and the inner wall of the groove, and a plurality of snap-in rods are evenly provided on the other side of the connecting plate, and the snap-in rods are adapted to the snap-in groove.

[0015] Preferably, the snap-in groove and the groove in the locking mechanism between the support frame and the placement frame are respectively opened on the placement frame and the support frame, and the snap-in groove and the groove in the locking mechanism between the inner wall of the placement frame and the clamping plate are respectively opened on the clamping plate and the placement frame.

[0016] According to another aspect of the present invention, there is provided a welding method for a pipeline welding device, which is used for the pipeline welding device and comprises the following steps:

[0017] According to the shape of the pipe fittings, the moving distances of the clamping plates inside the two placement racks are adjusted so that the clamping grooves formed by the clamping plates are adapted to the pipe fittings. The upper and lower placement racks are adapted to the pipe fittings of different shapes and specifications through the internal clamping grooves.

[0018] The lifting motor drives the lifting screw to rotate and drives the nut moving block and the placement rack to move toward the center point at the same time, so that the two placement racks move toward each other and clamp the pipe fitting at the center of the rotating ring, ensuring that the pipe fitting is in the center position relative to the rotating ring;

[0019] The welding plan is determined according to the shape of the pipe fitting. For round pipes, the electric push rod 3 is started, and the electric push rod 3 is extended and retracted to push the welding gun to move so that the position of the welding gun matches the pipe fitting, and then the rotating ring and the welding gun are driven to rotate so that the welding gun can rotate along the butt surface of the two round pipes to realize the welding action on the circumferential side. For square pipes, the position of the welding gun is adjusted by the electric push rod 3, and the linear position of the welding gun is adjusted by the moving motor and the moving screw rod, so that the welding gun can move along the plane of the square pipe to realize the welding action on one side of the square pipe. After the welding of this side is completed, the rotating ring is driven to rotate ninety degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side. In this way, the welding action on the four sides of the square pipe is realized.

[0020] The beneficial effects of the present invention are:

[0021] 1. The design of the rotary welding mechanism can determine the welding plan according to the shape of the pipe fitting to adapt to pipe fittings of different sizes. If the pipe fitting is a round pipe, the electric push rod 3. The welding gun, gears and external gear ring groove drive the rotating ring and the welding gun to rotate to achieve arc welding. If the pipe fitting is a square pipe, the gears and external gear ring groove drive the rotating ring and the welding gun to rotate ninety degrees each time to achieve welding on the four sides of the other pipe, and the welding assembly is used to achieve linear movement of the welding gun, thereby realizing mobile welding action on the side of the other pipe.

[0022] 2. Design of welding assembly. After the pipe fittings are butt-jointed and clamped, the welding scheme is determined according to the shape of the pipe fittings. If the pipe fitting is a round pipe, the electric push rod 3 is started. The electric push rod 3 is telescopically pushed to push the welding gun to move so that the position of the welding gun matches the pipe fitting. The gear is then driven by the driving motor to rotate. The gear drives the outer gear ring groove to engage, thereby driving the rotating ring and the welding gun to rotate, so that the welding gun can rotate along the butt surface of the two round pipes to achieve the welding action on the circumferential side. If the pipe fitting is a square pipe, the position of the welding gun is adjusted by the electric push rod 3, and the linear position of the welding gun is adjusted by the moving motor and the moving screw rod, so that the welding gun can move along the plane of the square pipe to achieve the welding action on one side of the square pipe. After the welding on this side is completed, the rotating ring is driven to rotate ninety degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side. In this way, the welding action on the four sides of the square pipe is achieved.

[0023] 3. The design of the pipe clamping mechanism can adjust the moving distance of several clamping plates inside the two placement racks according to the shape of the pipe, so that the clamping grooves formed by several clamping plates are adapted to the pipe, and the upper and lower placement racks are adapted to pipes of different shapes and specifications through the internal clamping grooves.

[0024] Fourth, the design of the pipe clamping assembly. When in use, first adjust the moving distance of the several clamping plates inside the two placement racks according to the shape of the pipe, so that the clamping grooves formed by the several clamping plates are adapted to the pipe, and the upper and lower placement racks are adapted to pipes of different shapes and specifications through the internal clamping grooves, that is, the vertical sliding seat and the vertical rod are pushed down by the lifting cylinder, so that the bottom of the vertical rod is docked with the top of the locking block, and the setting of the infrared sensor further ensures that the vertical rod will not drop too much and collide with the locking block. The descent of the vertical rod will drive the rotating shaft and the locking plate at the bottom to be inserted into the locking groove at the top of the locking block extending in the vertical receiving groove, and the rotating shaft and the locking plate are inserted into the locking groove through the inlet and outlet. Subsequently, the rotating motor drives the rotating shaft and the locking plate to rotate, so that the locking plate rotates to the bottom of the stopper and abuts against each other, so that the vertical rod and the locking block are connected together. Then, the electric push rod 1 inside the vertical sliding seat is started, and the electric push rod 1 will drive the horizontal plate to descend, and the horizontal plate drives the vertical plates on both sides to descend. During the descent of the vertical plate, the bottom end will gradually be inserted into the locking groove. When the cam is in the state of being lowered, the upper and lower limit plates of the current positioning plate are driven by the electric push rod, and the upper and lower limit plates of the current positioning plate are driven by the electric push rod, so that the upper and lower limit plates of the current positioning plate are released.

[0025] 5. The design of the locking mechanism. After the clamping plate has adjusted the telescopic distance and the placement rack is docked together, the adjusted clamping plate and the placement rack can be locked and fixed by adjusting the two locking mechanisms. That is, the connecting plate and the clamping rod are pushed to move by extending the electric push rod, and the clamping rods on the two sets of locking mechanisms are respectively moved and clamped into the clamping grooves on the placement rack and the clamping plate, thereby realizing the locking and fixation of the placement rack and the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a schematic structural diagram of a pipeline welding device according to an embodiment of the present invention;

[0028] Figure 2 is a structural schematic diagram of a placement rack in a pipeline welding device according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of a placement rack in a pipeline welding device according to an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of a pipe clamping mechanism in a pipeline welding device according to an embodiment of the present invention;

[0031] Figure 5 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 1 ;

[0032] Figure 6 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 2 ;

[0033] Figure 7 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 3 ;

[0034] Figure 8 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 4 ;

[0035] Fig. 9 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 5 ;

[0036] Fig.10 FIG. 1 is a schematic diagram of a partial structure of a pipe clamping assembly in a pipe welding device according to an embodiment of the present invention. Figure 6 ;

[0037] Fig.11 It is a schematic diagram of the connection structure between the rotating shaft and the locking plate in a pipeline welding device according to an embodiment of the present invention;

[0038] Fig.12 It is a schematic diagram of the connection structure between a locking mechanism and a clamping plate in a pipeline welding device according to an embodiment of the present invention;

[0039] Fig.13 This is a schematic diagram of the structure of a locking mechanism in a pipeline welding device according to an embodiment of the present invention;

[0040] Fig.14 Schematic diagram of a welding assembly structure of a shell in a pipeline welding device according to an embodiment of the present invention Figure 1 ;

[0041] Fig.15 FIG. 1 is a schematic diagram of a welding assembly structure in a pipeline welding device according to an embodiment of the present invention. Figure 2 ;

[0042] Fig.16 is a partial structural schematic diagram of a rotary welding mechanism in a pipeline welding device according to an embodiment of the present invention;

[0043] Fig.17 Schematic diagram of the structure of a rotary welding mechanism in a pipeline welding device according to an embodiment of the present invention Figure 1 ;

[0044] Fig.18 Schematic diagram of the structure of a rotary welding mechanism in a pipeline welding device according to an embodiment of the present invention Figure 2 ;

[0045] Fig.19 It is a schematic diagram of the connection structure of a nut moving seat, an electric push rod and a welding gun in a pipeline welding device according to an embodiment of the present invention;

[0046] Fig. 20 The invention discloses a schematic diagram of a connection structure between a placement rack and a pipeline in a pipeline welding device according to an embodiment of the present invention. Figure 1 ;

[0047] Fig.21 The invention discloses a schematic diagram of a connection structure between a placement rack and a pipeline in a pipeline welding device according to an embodiment of the present invention. Figure 2 ;

[0048] Fig. 22 A flowchart of a welding method for pipeline welding equipment according to an embodiment of the present invention.

[0049] In the figure:

[0050] 1. Support frame; 2. Stopper; 3. Lifting screw rod; 4. Nut moving block; 5. Placement frame; 6. Clamping plate; 7. Vertical storage groove; 8. Connecting column; 9. Positioning plate; 10. Connecting groove; 11. Horizontal storage groove; 12. Sliding groove; 13. Limiting plate; 14. Bevel hole; 15. Connecting rod; 16. Sliding plate; 17. Spring; 18. Lifting cylinder; 19. Vertical sliding seat; 20. Vertical rod; 21. Locking block; 22. Rotating motor; 23. Rotating shaft; 24. Guide ring; 25. Lock Tightening plate; 26. Infrared sensor; 27. Locking groove; 28. Inlet and outlet; 29. ​​Vertical plate; 30. Horizontal plate; 31. Electric push rod one; 32. Snap-in groove; 33. Electric push rod two; 34. Connecting plate; 35. Snap-in rod; 36. Rotating ring; 37. Annular slide groove; 38. Arc slide block; 39. Support column; 40. Gear; 41. Moving groove; 42. Moving motor; 43. Moving screw rod; 44. Guide rod; 45. Nut moving seat; 46. Electric push rod three; 47. Welding gun; 48. Pipeline. DETAILED DESCRIPTION

[0051] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0052] According to an embodiment of the present invention, a pipeline welding device and a welding method are provided.

[0053] Embodiment 1;

[0054] like Figure 1 , Figure 14-18As shown, the pipeline welding equipment according to the embodiment of the present invention includes a rotary welding mechanism and two pipe clamping mechanisms, the two pipe clamping mechanisms are respectively located on both sides of the rotary welding mechanism, the rotary welding mechanism includes two groups of support columns 39, an arc-shaped slider 38 is respectively fixed to the top of the two opposite sides of the support columns 39, a rotary ring 36 is slidably connected between the two support columns 39, an annular groove 37 matching the arc-shaped slider 38 is provided on the circumferential outer surface of the rotary ring 36, an outer toothed ring groove is provided in the middle of the inner wall of the annular groove 37, a driving motor is fixed to the bottom of the outer surface of the support column 39 on one side, and the side output of the driving motor The output end is connected with a gear 40 through a shaft rod, and the gear 40 meshes with the meshing teeth in the outer tooth ring groove. A number of welding assemblies are provided on the inner wall of the rotating ring 36. After the pipe fittings are butt-jointed and clamped, at this time, the welding scheme is determined according to the shape of the pipe fitting. If the pipe fitting is a round pipe, the electric push rod 3 46 is started, and the electric push rod 3 46 telescopes and pushes the welding gun 47 to move telescopically, so that the position of the welding gun 47 matches the pipe fitting, and then the gear 40 is driven to rotate by the driving motor, and the gear 40 drives the outer tooth ring groove to mesh, thereby driving the rotating ring 36 and the welding gun 47 to rotate, so that the welding gun 47 can rotate along the butt surface of the two round pipes to realize the welding action of the circumferential side.

[0055] Embodiment 2:

[0056] like Fig.14 As shown, the welding assembly includes a moving groove 41 opened on the inner wall of the rotating ring 36, a moving screw 43 is connected to the inner wall of the moving groove 41, a moving motor 42 connected to the moving screw 43 is arranged on the inner wall of one side of the moving groove 41, a group of guide rods 44 are fixed on the inner wall of the moving groove 41, a nut moving seat 45 is slidably connected to the guide rod 44, the side of the nut moving seat 45 is threadedly connected to the moving screw 43, an electric push rod 46 is fixedly installed in the middle of the outer surface of one side of the nut moving seat 45, and the telescopic output end of the electric push rod 46 passes through the moving groove 4 The opening of 1 penetrates into the interior of the rotating ring 36 and is connected to the welding gun 47; after the pipe fittings are butt-jointed and clamped, at this time, the welding scheme is determined according to the shape of the pipe fittings. If the pipe fitting is a square pipe, the position of the welding gun 47 is adjusted by the electric push rod 3 46, and the linear position of the welding gun 47 is adjusted by the moving motor 42 and the moving screw rod 43, so that the welding gun 47 can move along the plane of the square pipe to achieve the welding action on one side of the square pipe. After the welding of this side is completed, the rotating ring 36 is driven to rotate ninety degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side, and in this way, the welding action on the four sides of the square pipe is achieved.

[0057] Embodiment three;

[0058] like Figure 1As shown, the pipe clamping mechanism includes two groups of symmetrically arranged support frames 1, an inner cavity is opened inside the support frame 1, and a lifting motor is provided in the middle of both sides of the inner cavity, and the output ends of the lifting motor on both sides are connected to the lifting screw rod 3, and the top of the lifting screw rod 3 passes through the outer side of the support frame 1, and the lifting screw rod 3 is threadedly connected with a nut moving block 4, and two groups of relatively arranged placement frames 5 are fixed between the nut moving blocks 4 on both sides, and the two placement frames 5 are provided with pipe clamping assemblies on opposite sides; after the pipe is clamped and fixed, the lifting motor can drive the lifting screw rod 3 to rotate to drive the nut moving block 4 and the placement frame 5 to move toward the center point at the same time, so that the two placement frames 5 face each other and clamp the pipe at the center of the rotating ring 36, ensuring that the pipe is in the center position relative to the rotating ring 36.

[0059] Embodiment 4:

[0060] like Figure 2-Figure 11As shown, the pipe clamping assembly includes a plurality of clamping plates 6 slidably connected to the inner wall of the placement rack 5, the inner wall of the placement rack 5 is provided with a vertical receiving groove 7 matched with the clamping plate 6, a connecting column 8 is fixed at the top center of the clamping plate 6, a positioning plate 9 is fixed on the top of the connecting column 8, a locking block 21 is fixed at the top center of the positioning plate 9, a locking groove 27 is provided at the top center of the locking block 21, two stoppers 2 are symmetrically provided at the opening of the locking groove 27, an inlet and outlet 28 is provided between the two stoppers 2, a row of horizontal receiving grooves 11 are respectively provided on the inner walls on both sides of the vertical receiving groove 7, and one side of the horizontal receiving groove 11 is connected to the sliding groove 12 is connected, a sliding plate 16 is slidably connected in the sliding groove 12, a connecting rod 15 is fixed to the middle of the outer surface of the sliding plate 16, the end of the connecting rod 15 is movably penetrated into the inside of the horizontal receiving groove 11 and connected and fixed to the limiting plate 13, a spring 17 is sleeved on the outer surface of the connecting rod 15 and located between the limiting plate 13 and the inner wall of the horizontal receiving groove 11, an inclined hole 14 is opened on the limiting plate 13, the end of the limiting plate 13 penetrates into the vertical receiving groove 7 and is clamped and fixed together with the positioning plate 9, a connecting groove 10 is opened at the top of the vertical receiving groove 7, a lifting cylinder 18 is fixed at the top center of the connecting groove 10, and the lifting cylinder 18 The telescopic end is connected and fixed with the vertical sliding seat 19, and the vertical sliding seat 19 is slidably connected in the connecting groove 10. A vertical rod 20 is fixed at the bottom center of the vertical sliding seat 19, and a receiving groove is opened at the bottom center of the vertical rod 20. A rotating motor 22 is arranged inside the receiving groove, and a rotating shaft 23 is fixed to the bottom output end of the rotating motor 22. The middle part of the rotating shaft 23 is rotatably connected with the inner wall of the receiving groove through a guide ring 24. The bottom of the rotating shaft 23 movably penetrates to the bottom of the vertical rod 20 and is connected and fixed with two symmetrically arranged locking plates 25. The vertical rod 20 and the two locking plates 25 cooperate with the inlet and outlet 28. The bottom of the vertical rod 20 An infrared sensor 26 is provided on each side, an H-shaped groove is provided inside the vertical sliding seat 19, an electric push rod 31 is fixed at the inner bottom center of the H-shaped groove, the telescopic end of the electric push rod 31 is connected and fixed to the horizontal plate 30, the horizontal plate 30 is vertically slidably connected in the H-shaped groove, a vertical plate 29 is fixed at each end of the horizontal plate 30, the bottom end of the vertical plate 29 passes through the H-shaped groove to the inner wall of the connecting groove 10 and matches with the inclined holes 14 on the plurality of the limiting plates 13, the inner wall of the connecting groove 10 is provided with vertical through holes matching with the plurality of the horizontal receiving grooves 11, and the vertical through holes match with the plurality of the inclined holes 14;When in use, first adjust the moving distance of the plurality of clamping plates 6 inside the two placement racks 5 according to the shape of the pipe fittings, so that the clamping grooves formed by the plurality of clamping plates 6 are adapted to the pipe fittings, and the upper and lower placement racks 5 are adapted to the pipe fittings of different shapes and specifications through the internal clamping grooves, that is, the vertical sliding seat 19 and the vertical rod 20 are pushed down by the lifting cylinder 18, so that the bottom of the vertical rod 20 is butted against the top of the locking block 21, and the setting of the infrared sensor 26 further ensures that the vertical rod 20 will not fall too much and collide with the locking block 21, and the vertical rod 20 will be lowered with the bottom rotating shaft 23 and the locking block 21. The plate 25 is inserted into the locking groove 27 at the top of the locking block 21 extending from the vertical receiving groove 7, and the rotating shaft 23 and the locking plate 25 are inserted into the locking groove 27 through the inlet and outlet 28. Subsequently, the rotating motor 22 drives the rotating shaft 23 and the locking plate 25 to rotate, so that the locking plate 25 rotates to the bottom of the stopper 2 and abuts against each other, so that the vertical rod 20 and the locking block 21 are connected together. Then, the electric push rod 1 31 inside the vertical sliding seat 19 is started, and the electric push rod 1 31 will drive the horizontal plate 30 to descend, and the horizontal plate 30 drives the vertical plates 29 on both sides to descend. During the descent of the vertical plates 29, the bottom ends will gradually be inserted into the vertical In the through hole, the vertical plate 29 will be inserted into a plurality of horizontal receiving grooves 11 from top to bottom through the vertical through hole, and then the bottom end of the vertical plate 29 and the inclined surface of the inclined hole 14 on the limiting plate 13 in the horizontal receiving groove 11 will be squeezed to push the limiting plate 13 to move horizontally into the horizontal receiving groove 11. During the movement of the limiting plate 13, the connecting rod 15 will drive the sliding plate 16 to move and squeeze the spring 17, thereby releasing the limit of the limiting plates 13 on the upper and lower sides of the current positioning plate 9. Subsequently, the lifting cylinder 18 will start to drive the positioning plate 9, the connecting column 8 and the clamping plate 6 to descend, and because the current vertical plate 29 The bottom end is lower than the positioning plate 9. As the lifting cylinder 18 drives the positioning plate 9 to descend, the vertical plate 29 will first push the positioning plate 9 to descend, and then first push the limit plate 13 in the process of the positioning plate 9 descending to move and store, so that the limit plate 13 will not affect the descending action of the positioning plate 9. After adjusting the extension distance of the positioning plate 9 and the clamping plate 6, the electric push rod 1 31 is started again to drive the horizontal plate 30 and the vertical plates 29 on both sides to reset and rise, thereby releasing the limit of the limit plates 13 on the upper and lower sides of the current positioning plate 9, so that the upper and lower limit plates 13 limit and fix the positioning plate 9. ;

[0061] Embodiment five;

[0062] like Figure 2 , Fig.12 , Fig.13As shown, a locking mechanism is provided between the support frame 1 and the placement frame 5 and between the inner wall of the placement frame 5 and the clamping plate 6, the locking mechanism includes a clamping groove 32 and a groove, a connecting plate 34 is slidably connected inside the groove, an electric push rod 33 is provided between the middle part of one side of the connecting plate 34 and the inner wall of the groove, a plurality of clamping rods 35 are evenly provided on the other side of the connecting plate 34, the clamping rods 35 are adapted to the clamping groove 32, the clamping groove 32 and the groove in the locking mechanism between the support frame 1 and the placement frame 5 are respectively opened on the placement frame 5 and the support frame 1, The clamping groove 32 and the groove in the locking mechanism between the inner wall of the placement rack 5 and the clamping plate 6 are respectively provided on the clamping plate 6 and the placement rack 5; after the clamping plate 6 has adjusted the telescopic distance and the placement rack 5 has been docked together, the adjusted clamping plate 6 and the placement rack 5 can be locked and fixed by adjusting the two locking mechanisms, that is, by extending the electric push rod 2 33 to push the connecting plate 34 and the clamping rod 35 to move, the clamping rods 35 on the two sets of locking mechanisms are respectively moved and clamped into the clamping groove 32 on the placement rack 5 and the clamping groove 32 on the clamping plate 6, thereby realizing the locking and fixation of the placement rack 5 and the clamping plate 6.

[0063] Embodiment six;

[0064] like Figure 1-22 As shown, according to an embodiment of the present invention, a welding method for pipeline welding equipment is also provided, which is used for pipeline welding equipment and includes the following steps:

[0065] Step S101, adjusting the moving distance of the plurality of clamping plates 6 inside the two placement racks 5 according to the shape of the pipe fittings, so that the clamping grooves formed by the plurality of clamping plates 6 are adapted to the pipe fittings, and the upper and lower placement racks 5 are adapted to the pipe fittings of different shapes and specifications through the internal clamping grooves;

[0066] Step S103, the lifting motor drives the lifting screw 3 to rotate and drives the nut moving block 4 and the placement rack 5 to move toward the center point at the same time, so that the two placement racks 5 face each other and clamp the pipe at the center of the rotating ring 36, ensuring that the pipe is in the center position relative to the rotating ring 36;

[0067] Step S105, determine the welding plan according to the shape of the pipe fitting. For the round pipe, the electric push rod 3 46 is started, and the electric push rod 3 46 is extended and retracted to push the welding gun 47 to move so that the position of the welding gun 47 matches the pipe fitting, and then the rotating ring 36 and the welding gun 47 are driven to rotate, so that the welding gun 47 can rotate along the butt surface of the two round pipes to realize the welding action of the circumferential side; for the square pipe, the position of the welding gun 47 is adjusted by the electric push rod 3 46, and the linear position of the welding gun 47 is adjusted by the moving motor 42 and the moving screw 43, so that the welding gun 47 can move along the plane of the square pipe to realize the welding action on one side of the square pipe. After the welding of this side is completed, the rotating ring 36 is driven to rotate ninety degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side, and in this way, the welding action of the four sides of the square pipe is realized.

[0068] When in use, first adjust the moving distance of the plurality of clamping plates 6 inside the two placement racks 5 according to the shape of the pipe fittings, so that the clamping grooves formed by the plurality of clamping plates 6 are adapted to the pipe fittings, and the upper and lower placement racks 5 are adapted to the pipe fittings of different shapes and specifications through the internal clamping grooves, that is, the vertical sliding seat 19 and the vertical rod 20 are pushed down by the lifting cylinder 18, so that the bottom of the vertical rod 20 is butted against the top of the locking block 21, and the setting of the infrared sensor 26 further ensures that the vertical rod 20 will not fall too much and collide with the locking block 21 when it is lowered, and the lowering of the vertical rod 20 will bring the bottom rotating shaft 23 and the locking plate 25 into the vertical receiving groove 7 to extend the top of the locking block 21 The locking groove 27 of the upper part is inserted into the locking groove 27 by the rotating shaft 23 and the locking plate 25 through the inlet and outlet 28. Then, the rotating motor 22 drives the rotating shaft 23 and the locking plate 25 to rotate, so that the locking plate 25 rotates to the bottom of the stopper 2 and abuts against each other, so that the vertical rod 20 and the locking block 21 are connected together. Then, the electric push rod 1 31 inside the vertical sliding seat 19 is started, and the electric push rod 1 31 will drive the horizontal plate 30 to descend, and the horizontal plate 30 drives the vertical plates 29 on both sides to descend. During the descent of the vertical plate 29, the bottom end will gradually be inserted into the vertical through hole, and the vertical plate 29 will be inserted into a plurality of horizontal receiving grooves 11 from top to bottom through the vertical through hole, and then through the vertical plate 29 The bottom end is squeezed with the inclined surface of the inclined hole 14 on the limit plate 13 in the horizontal storage groove 11 to push the limit plate 13 to move horizontally into the horizontal storage groove 11. During the movement of the limit plate 13, the connecting rod 15 drives the sliding plate 16 to move and squeeze the spring 17, thereby releasing the limit of the limit plates 13 on the upper and lower sides of the current positioning plate 9. Subsequently, the lifting cylinder 18 is started to drive the positioning plate 9, the connecting column 8 and the clamping plate 6 to descend. Moreover, because the bottom end position of the current vertical plate 29 is lower than the positioning plate 9, as the above-mentioned lifting cylinder 18 drives the positioning plate 9 to descend, the vertical plate 29 will push the positioning plate 9 to descend first, thereby pushing the positioning plate 9 to descend first. During the process, the limit plate 13 moves and retracts, so that the limit plate 13 does not affect the descending action of the positioning plate 9. After adjusting the extension distance of the positioning plate 9 and the clamping plate 6, the electric push rod 131 is started again to drive the horizontal plate 30 and the vertical plates 29 on both sides to reset and rise, thereby releasing the limit of the limit plates 13 on the upper and lower sides of the current positioning plate 9, so that the upper and lower limit plates 13 limit and fix the positioning plate 9; then, the lifting motor drives the lifting screw 3 to rotate and drives the nut moving block 4 and the placement frame 5 to move toward the center point at the same time, so that the two placement frames 5 face each other and clamp the pipe fittings at the center of the rotating ring 36, ensuring that the pipe fittings are in the center position relative to the rotating ring 36;After the above-mentioned clamping plate 6 has adjusted the telescopic distance and the placement rack 5 is docked together, the adjusted clamping plate 6 and the placement rack 5 can be locked and fixed by adjusting the two locking mechanisms, that is, the electric push rod 2 33 is extended to push the connecting plate 34 and the clamping rod 35 to move, and the clamping rods 35 on the two sets of locking mechanisms are respectively moved and clamped into the clamping groove 32 on the placement rack 5 and the clamping groove 32 on the clamping plate 6, thereby realizing the locking and fixation of the placement rack 5 and the clamping plate 6; after the pipe fittings are docked together and clamped and fixed, at this time, the welding plan is determined according to the shape of the pipe fittings. If the pipe fitting is a round pipe, the electric push rod 3 46 is started, and the electric push rod 3 46 is telescopic to push the welding gun 47 is telescopically moved so that the position of the welding gun 47 matches the pipe fitting, and then the rotating ring 36 and the welding gun 47 are driven to rotate so that the welding gun 47 can rotate along the butt surface of the two round pipes to achieve the welding action of the circumferential side; if the pipe fitting is a square pipe, the position of the welding gun 47 is adjusted by the electric push rod 3 46, and the linear position of the welding gun 47 is adjusted by the moving motor 42 and the moving screw rod 43 so that the welding gun 47 can move along the plane of the square pipe to achieve the welding action on one side of the square pipe. After the welding of this side is completed, the rotating ring 36 is driven to rotate 90 degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side, and in this way, the welding action of the four sides of the square pipe is achieved. ;

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline welding device, characterized in that: The invention comprises a rotary welding mechanism and two pipe clamping mechanisms, wherein the two pipe clamping mechanisms are respectively located on both sides of the rotary welding mechanism, and the rotary welding mechanism comprises two groups of support columns (39), wherein an arc-shaped slider (38) is respectively fixed on the top of the opposite side of the two support columns (39), and a rotary ring (36) is slidably connected between the two support columns (39), and an annular groove (37) matching with the arc-shaped slider (38) is provided on the circumferential outer surface of the rotary ring (36), and an outer toothed ring groove is provided in the middle of the inner wall of the annular groove (37), and a driving motor is fixed on the bottom of the outer surface of the support column (39) on one side, and the side output end of the driving motor is connected with a gear (40) through a shaft. The gear (40) meshes with the engaging teeth in the outer gear ring groove, and a plurality of welding assemblies are provided on the inner wall of the rotating ring (36). The pipe clamping mechanism comprises two groups of symmetrically arranged support frames (1), and an inner cavity is provided inside the support frame (1). A lifting motor is provided in the middle of both sides of the inner cavity. The output ends of both sides of the lifting motor are connected with a lifting screw (3), and the top of the lifting screw (3) passes through the outer side of the support frame (1). A nut moving block (4) is threadedly connected to the lifting screw (3). Two groups of oppositely arranged placement frames (5) are fixed between the nut moving blocks (4) on both sides. The two placement frames (5) are provided with pipe clamping assemblies on opposite sides. The pipe clamping assembly comprises a plurality of clamping plates (6) slidably connected to the inner wall of the placement rack (5); a vertical receiving groove (7) matching with the clamping plate (6) is provided on the inner wall of the placement rack (5); a connecting column (8) is fixed at the top center of the clamping plate (6); a positioning plate (9) is fixed at the top of the connecting column (8); a locking block (21) is fixed at the top center of the positioning plate (9); a locking groove (27) is provided at the top center of the locking block (21); two stoppers (2) are symmetrically provided at the opening of the locking groove (27); an inlet and outlet (28) is provided between the two stoppers (2); and a row of transverse openings (21) are provided on the inner walls on both sides of the vertical receiving groove (7). A storage groove (11), one side of the horizontal storage groove (11) is connected to the sliding groove (12), a sliding plate (16) is slidably connected in the sliding groove (12), a connecting rod (15) is fixed in the middle of the outer surface of the sliding plate (16), the end of the connecting rod (15) movably penetrates into the interior of the horizontal storage groove (11) and is connected and fixed with the limiting plate (13), a spring (17) is sleeved on the outer surface of the connecting rod (15) and is located between the limiting plate (13) and the inner wall of the horizontal storage groove (11), an inclined hole (14) is opened on the limiting plate (13), and the end of the limiting plate (13) penetrates into the vertical storage groove (7) and is clamped and fixed together with the positioning plate (9).

2. A pipeline welding device according to claim 1, characterized in that: The welding assembly comprises a movable groove (41) provided on the inner wall of the rotating ring (36); a movable screw rod (43) is connected to the shaft on the inner wall of the movable groove (41); a movable motor (42) connected to the movable screw rod (43) is provided on the inner wall of one side of the movable groove (41); a group of guide rods (44) are fixed on the inner wall of the movable groove (41); a nut movable seat (45) is slidably connected to the guide rod (44); the side edge of the nut movable seat (45) is threadedly connected to the movable screw rod (43); an electric push rod three (46) is fixedly installed in the middle of the outer surface of one side of the nut movable seat (45); the telescopic output end of the electric push rod three (46) passes through the opening of the movable groove (41) to the inside of the rotating ring (36) and is connected to the welding gun (47).

3. A pipeline welding device according to claim 2, characterized in that: A connecting groove (10) is provided at the top of the vertical receiving groove (7), a lifting cylinder (18) is fixed at the top center of the connecting groove (10), the telescopic end of the lifting cylinder (18) is connected and fixed to a vertical sliding seat (19), the vertical sliding seat (19) is slidably connected in the connecting groove (10), a vertical rod (20) is fixed at the bottom center of the vertical sliding seat (19), a receiving groove is provided at the bottom center of the vertical rod (20), and a rotating motor (22) is provided inside the receiving groove, A rotating shaft (23) is fixed to the bottom output end of the rotating motor (22), and the middle part of the rotating shaft (23) is rotatably connected to the inner wall of the accommodating groove through a guide ring (24). The bottom of the rotating shaft (23) movably passes through the bottom of the vertical rod (20) and is connected and fixed to two symmetrically arranged locking plates (25). The vertical rod (20) and the two locking plates (25) are matched with the inlet and outlet (28), and an infrared sensor (26) is respectively arranged on both sides of the bottom of the vertical rod (20).

4. A pipeline welding device according to claim 3, characterized in that: An H-shaped groove is provided inside the vertical sliding seat (19), an electric push rod (31) is fixed at the center of the inner bottom of the H-shaped groove, the telescopic end of the electric push rod (31) is connected and fixed to the horizontal plate (30), the horizontal plate (30) is vertically slidably connected in the H-shaped groove, a vertical plate (29) is fixed at each end of the horizontal plate (30), the bottom end of the vertical plate (29) passes through the H-shaped groove to the inner wall of the connecting groove (10) and matches with the inclined holes (14) on the plurality of limiting plates (13).

5. A pipeline welding device according to claim 4, characterized in that: A vertical through hole matching with a plurality of the horizontal receiving grooves (11) is provided on the inner wall of the connecting groove (10), and the vertical through hole matches with a plurality of the inclined holes (14).

6. A pipeline welding device according to claim 5, characterized in that: A locking mechanism is provided between the support frame (1) and the placement frame (5) and between the inner wall of the placement frame (5) and the clamping plate (6), the locking mechanism comprising a clamping groove (32) and a groove, a connecting plate (34) is slidably connected inside the groove, an electric push rod 2 (33) is provided between the middle part of one side of the connecting plate (34) and the inner wall of the groove, and a plurality of clamping rods (35) are evenly provided on the other side of the connecting plate (34), and the clamping rods (35) are adapted to the clamping groove (32).

7. A pipeline welding device according to claim 6, characterized in that: The snap-in groove (32) and the groove in the locking mechanism between the support frame (1) and the placement frame (5) are respectively provided on the placement frame (5) and the support frame (1); the snap-in groove (32) and the groove in the locking mechanism between the inner wall of the placement frame (5) and the clamping plate (6) are respectively provided on the clamping plate (6) and the placement frame (5).

8. A welding method for pipeline welding equipment, characterized in that: The pipeline welding device according to claim 7 comprises the following steps: The moving distance of the plurality of clamping plates (6) inside the two placement racks (5) is adjusted according to the shape of the pipe fittings, so that the clamping grooves formed by the plurality of clamping plates (6) are adapted to the pipe fittings, and the upper and lower placement racks (5) are adapted to the pipe fittings of different shapes and specifications through the internal clamping grooves; The lifting motor drives the lifting screw rod (3) to rotate and drives the nut moving block (4) and the placement rack (5) to move toward the center point at the same time, so that the two placement racks (5) face each other and clamp the pipe fitting at the center of the rotating ring (36), ensuring that the pipe fitting is in the center position relative to the rotating ring (36); The welding scheme is determined according to the shape of the pipe fitting. For a round pipe, the electric push rod 3 (46) is activated, and the electric push rod 3 (46) is extended to push the welding gun (47) to move, so that the position of the welding gun (47) matches the pipe fitting, and then the rotating ring (36) and the welding gun (47) are driven to rotate, so that the welding gun (47) can rotate along the butt surface of the two round pipes to achieve the welding action of the circumferential side. For a square pipe, the position of the welding gun (47) is adjusted by the electric push rod 3 (46), and the linear position of the welding gun (47) is adjusted by the moving motor (42) and the moving screw rod (43), so that the welding gun (47) can move along the plane of the square pipe to achieve the welding action on one side of the square pipe. After the welding of this side is completed, the rotating ring (36) is driven to rotate 90 degrees, and then the above operation is repeated to weld and fix the butt surface of the square pipe on this side. In this way, the welding action of the four sides of the square pipe is achieved.

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