CN114654087A

CN114654087A - Laser welding equipment for inflammable and explosive medium conveying pipeline

Info

Publication number: CN114654087A
Application number: CN202210280088.1A
Authority: CN
Inventors: 魏彬; 王岳; 何圣刚; 孙敬庭; 戴旭伟; 季佳欢
Original assignee: China Construction Industrial and Energy Engineering Group Co Ltd
Current assignee: China Construction Industrial and Energy Engineering Group Co Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-06-24
Anticipated expiration: 2042-03-21
Also published as: CN114654087B

Abstract

The invention discloses laser welding equipment for a flammable and explosive medium conveying pipeline, and relates to the technical field of pipeline welding equipment. The laser welding equipment for the inflammable and explosive medium conveying pipeline comprises an upper seat plate and a lower seat plate, wherein four corners of the upper end face of the lower seat plate are fixedly connected with the upper seat plate through electric telescopic rods, the right part of the upper end face of the upper seat plate is provided with an angle adjusting mechanism, the outer parts of a first disc and a second disc are sleeved with elastic rubber covers, and the outer surface walls of the elastic rubber covers are fixedly connected with telescopic elastic air bag rings.

Description

Laser welding equipment for inflammable and explosive medium conveying pipeline

Technical Field

The invention relates to the technical field of pipeline welding equipment, in particular to laser welding equipment for a flammable and combustible medium conveying pipeline.

Background

Inflammable and explosive medium refers to the material that easily burns, explodes, including solid, liquid, gas, adopt the pipeline to carry mostly when shifting these media, need weld a plurality of pipelines together according to the demand in the in-process of pipe laying and reach required length, need take some measures to the back of welding seam in to pipeline welding's in-process in order to obstruct the oxidation of oxygen in the air to the welding seam, inert gas is considered better protective medium usually, can seal pipeline both ends during the welding, fill into inert gas and protect, make the inside oxygen content of pipe reduce, thereby reduce the oxidation degree.

However, because the inner space of the pipeline is large, a large amount of inert gas needs to be consumed for protection, so that the cost is high, even if a large amount of inert gas is filled, air cannot be effectively evacuated, the concentration of the inert gas in the pipeline cannot reach the consistent concentration, so that the protection effect is poor, and the welding quality is influenced; in addition, the trend of pipeline need be changed according to the topography at scene when laying, need be in the same place pipeline and elbow welding, and current clamping device is mostly to right-angled elbow centre gripping, and need spend the longer time to adjust the contained angle between centre gripping equipment, return bend and the straight tube to the elbow that the bending arc angle is less than ninety degrees or is greater than ninety degrees, and it is very loaded down with trivial details to operate takes time, influences welding speed.

Disclosure of Invention

The technical problem to be solved is as follows: the laser welding equipment for the inflammable and explosive medium conveying pipeline provided by the invention can solve the problems pointed out in the background technology.

The technical scheme is as follows: in order to achieve the purposes, the invention adopts the following technical scheme that the laser welding equipment for the inflammable and explosive medium conveying pipeline comprises an upper seat plate and a lower seat plate, four corners of the upper end surface of the lower seat plate are fixedly connected with the upper seat plate through electric telescopic rods, the right part of the upper end surface of the upper seat plate is provided with an angle adjusting mechanism, a first clamping mechanism for clamping and limiting a pipeline elbow is arranged between the upper seat plate and the lower seat plate and below the angle adjusting mechanism, two second clamping mechanisms for clamping and limiting a conveying straight pipe are respectively arranged on the upper end surface of the lower seat plate and on the left part and the front part of the first clamping mechanism, the angle adjusting mechanism is used for adjusting an included angle between the two second clamping mechanisms, and two welding mechanisms corresponding to the second clamping mechanisms are arranged on the lower part of the angle adjusting mechanism and between the upper seat plate and the lower seat plate, the welding mechanism is internally provided with a laser welding head, the second clamping mechanism comprises a mounting frame, a sealing mechanism is arranged on one side end face of the mounting frame, which is far away from the first clamping mechanism, and is used for sealing the inner cavity of the welding position of the pipeline when the pipeline is welded so as to rapidly fill the welding position with inert gas during welding, the sealing mechanism comprises an outer shaft, an inner shaft, a first disc, a second disc, a straight groove, an arc-shaped top plate, an elastic rubber cover and a telescopic elastic air bag ring, one side end face of the mounting frame, which is far away from the first clamping mechanism, is fixedly connected with a supporting telescopic plate through a telescopic fixing plate, the upper end face of the supporting telescopic plate is fixedly connected with a sliding ring, the inner cavity of the sliding ring is slidably connected with the outer shaft, the inner cavity of the outer shaft is fixedly connected with the two first discs, and the inner cavity of the outer shaft is rotatably connected with the inner shaft, the outer axle outside table wall just is located one side symmetry of two first discs and has seted up the slotted hole, interior outer axle outside table wall fixedly connected with lug, and the lug wears out slotted hole and fixedly connected with and the corresponding second disc of first disc, a plurality of straight flute has been seted up to first disc side end circumference equidistance, and the inside sliding connection of straight flute has a traveller, traveller one end fixedly connected with arc top piece, a plurality of and the corresponding arc wall of straight flute have been seted up to second disc side end equidistance, and one section sliding connection that fan-shaped top piece was kept away from to the traveller is inside the arc wall, first disc and the outside cover of second disc are equipped with the elastic rubber cover, and the outer table wall fixedly connected with of elastic rubber cover is scalable elastic air bag ring.

Further, flexible fixed plate up end fixedly connected with gas holder, gas holder upper portion intercommunication has the gas-supply pipe, gas-supply pipe outside surface wall is provided with the air pump, interior off-axial portion just is located one section fixedly connected with air outlet cage between two first discs, outer off-axial surface wall just is located the outside of air outlet cage and has seted up the venthole, the one end that the gas holder was kept away from to the gas-supply pipe runs through interior off-axial portion and fixed connection at the air outlet cage inner wall.

Furthermore, the angle adjusting mechanism comprises a mounting plate, a mounting shaft, an end face gear ring seat, a limiting end face gear ring and a pressing wheel, wherein the upper end face of the upper seat plate is fixedly connected with the mounting shaft, the outer surface wall of the mounting shaft is rotatably connected with two mounting plates, the upper end face of the mounting plate is fixedly connected with the end face gear ring seat, the end face gear ring seat is sleeved outside the mounting shaft, the limiting end face gear ring matched with the end face gear ring seat is sleeved outside the mounting shaft, the outer surfaces of the two end face gear rings are jointly and fixedly connected with a C-shaped rod, the upper part of the outer surface wall of the mounting shaft is provided with a sliding vertical groove, the inner cavity wall of the limiting end face gear ring positioned at the upper part of the mounting shaft is fixedly connected with a sliding block which is arranged inside the sliding vertical groove, a reset spring is jointly and fixedly connected between the side end face of the sliding block and the groove wall, and the upper end face of the limiting end face gear ring positioned at the upper part of the mounting shaft is symmetrically and fixedly connected with a bending plate, and a pinch roller is connected between the two folding plates through a rotating shaft in a common eccentric rotation mode.

Furthermore, a first arc-shaped through groove is formed in the upper end face of the upper seat plate, a fixing column is fixedly connected to the lower end face of the mounting plate, the lower end of the fixing column penetrates through the first arc-shaped through groove and is fixedly connected with a connecting frame, the welding mechanism comprises a ring frame, the ring frame is provided with two lower portions of the two connecting frames, two ring frames are provided with ring grooves and two side end faces close to each other, a supporting plate is connected between the ring grooves in a sliding mode, a laser welding head is installed on one side end face, close to the axis of the ring frame, of the supporting plate, a gear ring is fixedly connected to the outer surface wall of one of the ring frames, a driving motor is fixedly connected to one side end face, far away from the axis of the ring frame, of the supporting plate, and an output shaft of the driving motor is fixedly connected with a gear meshed with the gear ring.

Furthermore, a transverse plate is fixedly connected to the end face of one side, close to the ring frame, of the mounting frame, and a limiting telescopic rod is fixedly connected to the upper end face of the transverse plate and the lower portion of the outer surface wall of the ring frame.

Further, fixture includes flexible ejector pin of first spring, goes up the arc clamping piece, the flexible ejector pin of second spring and arc clamping piece down, the link passes through the flexible ejector pin of the first spring of horizontal pole fixedly connected with near a side end face of installation axle, the arc clamping piece on the flexible ejector pin lower extreme fixedly connected with of first spring, the arc clamping piece under the diaphragm up end passes through the flexible ejector pin fixedly connected with of second spring.

Furthermore, the second clamping mechanism comprises a mounting seat, an extrusion rod, an L-shaped rod, an extrusion frame and an arc-shaped plate, the upper end face of the lower seat plate is fixedly connected with an arc-shaped sliding rod corresponding to the mounting plate, the outside of the arc-shaped sliding rod is slidably connected with a sliding plate, the mounting frame is fixedly connected with the upper end face of the sliding plate, the upper end face of the vertical section of the mounting frame is fixedly connected with the mounting seat, the upper end face of the mounting seat is slidably connected with the extrusion rod through a sliding seat matched with a sliding block, one side end face of the extrusion rod, which is close to the middle part of the mounting frame, is fixedly connected with the arc-shaped plate, the side end face of the extrusion rod is provided with a slotted hole, the inside of the slotted hole is slidably connected with the extrusion block, an extrusion spring is fixedly connected between the side end face of the extrusion block and the inner slot wall of the slotted hole, the side end face of the extrusion block is rotatably connected with the L-shaped rod through a lug, the utility model discloses a supporting device for extrusion frame, including extrusion frame upper portion and L shape pole corner, L shape pole upper portion section side end face fixedly connected with extrusion column, go up the bedplate up end and seted up and lead to the groove with two corresponding second arcs of fixture No. two, terminal surface fixedly connected with erector under the mounting panel, the erector runs through second arc and leads to groove and fixedly connected with X shape pole, four tip fixedly connected with and the corresponding square board of L shape pole of X shape pole, square board side end face seted up with extrusion column matched with extrusion chute.

Further, the plate is placed through fixed cylinder fixedly connected with arc in mounting bracket up end middle part.

Beneficial effect (1), through two first discs in the closing mechanism, two second discs, the arc top piece, elastic rubber cover and scalable elastic airbag ring mutually support, cut off a segment enclosure space with the welding department when the welding, make in inert gas can be quick is full of the inner chamber space of pipeline welding department, the diffusion of inert gas has been reduced, make the inert gas concentration of welding department can quick promote to required standard, the protective effect to welding department has been promoted, improve welding quality, and the filling amount of inert gas has still been reduced simultaneously, use cost is reduced.

(2) The installation plate, the installation shaft, the end face gear ring seat, the limiting end face gear ring and the pinch roller in the angle adjusting mechanism are mutually matched, so that the angle between the first adjusting mechanism, the second adjusting mechanism and the welding mechanism can be simultaneously and rapidly adjusted, the welding device can be suitable for welding between bent pipes and straight pipes with different bending arc angles, the adjusting time is shortened, and the welding speed is improved.

(3) The extrusion device comprises an extrusion rod, an L-shaped rod, an extrusion frame, an arc-shaped plate, an extrusion column and an extrusion chute, wherein the extrusion rod, the L-shaped rod, the extrusion frame, the arc-shaped plate, the extrusion column and the extrusion chute are matched with each other, the extrusion column is extruded by the extrusion chute and is moved to drive the extrusion rod to be close to each other in the process that the extrusion chute is driven to descend by an upper seat plate, so that the automatic clamping of a pipeline is realized, the step of manually operating a clamping device is omitted, time and labor are saved, and the welding efficiency is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the mounting structure of the angle adjusting mechanism of the present invention.

FIG. 3 is a schematic view of the mounting structure of the first clamping mechanism, the second clamping mechanism and the laser welding mechanism of the present invention.

Fig. 4 is a schematic diagram of the disassembly structure of the closing mechanism of the present invention.

Fig. 5 is an enlarged view of the structure of part a in fig. 4 according to the present invention.

Fig. 6 is a schematic cross-sectional view of the closure mechanism of the present invention.

FIG. 7 is a schematic view of an installation structure of the second clamping mechanism of the present invention.

Fig. 8 is a schematic view of a connection structure of the mounting bracket and the mounting base of the present invention.

Fig. 9 is an enlarged view of the structure of part B in fig. 8 according to the present invention.

Fig. 10 is a schematic view of the installation structure of the laser welding mechanism of the present invention.

In the figure: 1. an upper seat plate; 2. a lower seat plate; 3. an electric telescopic rod; 4. an angle adjusting mechanism; 41. mounting a plate; 42. installing a shaft; 43. an end face gear ring seat; 44. limiting an end face gear ring; 45. a pinch roller; 46. a C-shaped rod; 47. a sliding vertical slot; 48. a slider; 49. a return spring; 5. a first clamping mechanism; 51. a first spring telescopic ejector rod; 52. an upper arc-shaped clamping piece; 53. a second spring telescopic ejector rod; 54. a lower arc-shaped clamping piece; 6. a second clamping mechanism; 61. a mounting frame; 62. a mounting seat; 63. an extrusion stem; 64. an L-shaped rod; 65. an extrusion frame; 66. an arc-shaped plate; 7. a welding mechanism; 71. a laser welding head; 72. a ring frame; 73. a support plate; 74. a drive motor; 8. a closure mechanism; 81. an outer shaft; 82. an inner shaft; 83. a first disc; 84. a second disc; 85. a straight groove; 86. an arc-shaped slot; 87. an arcuate top sheet; 88. an elastic rubber cover; 89. a flexible elastic bladder ring; 9. a telescopic fixed plate; 10. supporting the expansion plate; 11. a traveler; 12. a gas delivery pipe; 13. an air outlet cage; 14. an air outlet; 15. a folded plate; 16. a first arc-shaped through groove; 17. a connecting frame; 18. a transverse plate; 19. limiting the telescopic rod; 20. an arc-shaped sliding rod; 21. a slide plate; 22. a slide base; 23. extruding the block; 24. a compression spring; 25. extruding the column; 26. a second arc-shaped through groove; 27. an X-shaped bar; 28. a square plate; 29. extruding the chute; 30. the board is placed to the arc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 3, the present invention provides a technical solution: a laser welding device for a flammable and explosive medium conveying pipeline comprises an upper seat plate 1 and a lower seat plate 2, wherein four corners of the upper end surface of the lower seat plate 2 are fixedly connected with the upper seat plate 1 through an electric telescopic rod 3, an angle adjusting mechanism 4 is arranged at the right part of the upper end surface of the upper seat plate 1, a first clamping mechanism 5 for clamping and limiting a pipeline elbow is arranged between the upper seat plate 1 and the lower seat plate 2 and below the angle adjusting mechanism 4, two second clamping mechanisms 6 for clamping and limiting a conveying straight pipe are arranged at the left part and the front part of the upper end surface of the lower seat plate 2 and between the first clamping mechanism 5, the angle adjusting mechanism 4 is used for adjusting an included angle between the two second clamping mechanisms 6, two welding mechanisms 7 corresponding to the second clamping mechanisms 6 are arranged at the lower part of the angle adjusting mechanism 4 and between the upper seat plate 1 and the lower seat plate 2, and a laser welding head 71 is arranged in each welding mechanism 7, no. two fixture 6 includes mounting bracket 61, and a side end face that fixture 5 was kept away from to mounting bracket 61 installs closing mechanism 8, and closing mechanism 8 is used for sealing the pipeline welding department inner chamber when the pipeline welds to inert gas can be quick when the welding be full of the welding department.

Referring to fig. 2, in this embodiment, the angle adjusting mechanism 4 includes a mounting plate 41, a mounting shaft 42, an end face gear ring seat 43, a limit end face gear ring 44 and a pressing wheel 45, the upper end face of the upper seat plate 1 is fixedly connected with the mounting shaft 42, the outer surface wall of the mounting shaft 42 is rotatably connected with two mounting plates 41, the upper end faces of the mounting plates 41 are both fixedly connected with the end face gear ring seat 43, the end face gear ring seat 43 is sleeved outside the mounting shaft 42, the limit end face gear ring 44 matched with the end face gear ring seat 43 is sleeved outside the mounting shaft 42, the outer surface walls of the two end face gear rings are both fixedly connected with a C-shaped rod 46, the upper portion of the outer surface wall of the mounting shaft 42 is provided with a sliding vertical groove 47, the inner cavity wall of the limit end face gear ring 44 positioned on the upper portion of the mounting shaft 42 is fixedly connected with a sliding block 48 slidably arranged inside the sliding vertical groove 47, a return spring 49 is commonly and fixedly connected between the side end face of the sliding block 48 and the groove wall of the sliding vertical groove 47, the upper end faces of the limit end face gear rings 44 on the upper portion of the mounting shaft 42 are symmetrically and fixedly connected with the folded plates 15, and the two folded plates 15 are connected with the pressing wheel 45 through the rotating shaft which is commonly eccentrically and rotatably.

The included angle between the first clamping mechanism 5 and the two second clamping mechanisms 6 is adjusted by using the angle adjusting mechanism 4 according to the bending angle of the bent pipe to be welded, the mounting plate 41 is rotated to drive the first adjusting mechanism, the second adjusting mechanism and the welding mechanism 7 to rotate, the pinch roller 45 is rotated to enable the far end part of the pinch roller to be abutted against the upper end of the mounting shaft 42, the pinch roller 45 can upwards pull the folded plate 15 to move in the rotating process, the folded plate 15 then drives the limiting end face gear ring 44 to upwards move and be separated from the inner part of the end face gear ring seat 43, then the two mounting plates 41 can be rotated, the included angle between the two mounting plates 41 is adjusted to be consistent with the bending angle of the bent pipe to be welded, the pinch roller 45 is reversely rotated after adjustment is completed, the near end part of the pinch roller 45 to be abutted against the upper part of the mounting shaft 42, the reset spring 49 extrudes the slide block 48, the slide block 48 then drives the limiting end face gear ring 44 to descend and be clamped with the end face gear ring seat 43, the mounting plate 41 after the angle is adjusted is limited, and the angles of the first clamping mechanism 5, the second clamping mechanism 6 and the welding mechanism 7 can be adjusted simultaneously through the mounting plate 41, so that the elbow pipe with different bending radians can be quickly adjusted, the adjusting time is shortened, and the welding speed is increased.

Referring to fig. 3 and 7, the first clamping mechanism 5 includes a first spring telescopic ejector rod 51, an upper arc-shaped clamping piece 52, a second spring telescopic ejector rod 53 and a lower arc-shaped clamping piece 54, a side end surface of the connecting frame 17 close to the mounting shaft 42 is fixedly connected with the first spring telescopic ejector rod 51 through a cross rod, a lower end of the first spring telescopic ejector rod 51 is fixedly connected with the upper arc-shaped clamping piece 52, and an upper end surface of the transverse plate 18 is fixedly connected with the lower arc-shaped clamping piece 54 through the second spring telescopic ejector rod 53.

Referring to fig. 3, 7, 8 and 9, the second clamping mechanism 6 includes a mounting base 62, an extrusion rod 63, an L-shaped rod 64, an extrusion frame 65 and an arc-shaped plate 66, the upper end surface of the lower base plate 2 is fixedly connected with the arc-shaped slide rod 20 corresponding to the mounting plate 41, the outer portion of the arc-shaped slide rod 20 is slidably connected with the slide plate 21, the mounting base 61 is fixedly connected with the upper end surface of the slide plate 21, the upper end surface of the vertical section of the mounting base 61 is fixedly connected with the mounting base 62, the upper end surface of the mounting base 62 is slidably connected with the extrusion rod 63 through the slide base 22 in cooperation with the slide block, one side end surface of the extrusion rod 63 close to the middle portion of the mounting base 61 is fixedly connected with the arc-shaped plate 66, the side end surface of the extrusion rod 63 is provided with a slot hole, the inside of the slot hole is slidably connected with the extrusion block 23, the extrusion spring 24 is fixedly connected between the side end surface of the extrusion block 23 and the slot wall of the slot hole, the side end surface of the extrusion block 23 is rotatably connected with the extrusion frame 65, the upper end surface of the mounting base 62 is rotatably connected with the L-shaped rod 64 through a lug, the mutual rotation of the upper portion of the extrusion frame 65 and the corner of the L-shaped rod 64 is connected, the end face fixedly connected with extrusion column 25 is arranged on the upper end face of the L-shaped rod 64 at the upper section side, the upper end face of the upper seat plate 1 is provided with two second arc-shaped through grooves 26 corresponding to the two clamping mechanisms 6, the end face fixedly connected with vertical columns are arranged on the mounting plate 41, the vertical columns penetrate through the second arc-shaped through grooves 26 and are fixedly connected with the X-shaped rod 27, four end fixedly connected with of the X-shaped rod 27 and the square plate 28 corresponding to the L-shaped rod 64 are arranged on the end face of the square plate 28, the extrusion chute 29 matched with the extrusion column 25 is arranged on the middle portion of the upper end face of the mounting frame 61, and the plate 30 is arranged through the arc-shaped fixedly connected with the fixing cylinders.

After the adjustment is completed, the electric telescopic rod 3 is started to drive the upper seat plate 1 to ascend, then the pipeline elbow is placed on the lower arc-shaped clamping piece 54, the straight pipe is placed on the arc-shaped placing plate 30, one end of the straight pipe needing to be welded is adjusted to penetrate through the ring frame 72, then the electric telescopic rod 3 is controlled to contract to drive the upper seat plate 1 to descend, the upper seat plate 1 drives the upper arc-shaped clamping piece 52 to descend through the connecting frame 17 and the first spring telescopic ejector rod 51 to clamp and fix the elbow pipe, the upper seat plate 1 can also drive the square plate 28 to descend when descending until the extrusion column 25 slides into the extrusion chute 29, because the extrusion chute 29 is in an inclined state, the extrusion chute 29 can extrude the extrusion column 25 to move towards the middle part of the mounting frame 61 in the descending process, the extrusion column 25 then drives the L-shaped rod 64 to rotate, the L-shaped rod 64 rotates to drive the extrusion frame 65 to change from an inclined state to a horizontal state, and the extrusion block 23 is pushed by the extrusion frame 65 to move, extrusion block 23 drives extrusion pole 63 through extrusion spring 24 and removes to mounting bracket 61 middle part direction next to carry out the centre gripping to the lateral part of straight tube and fix, saved the operation of artifical manual centre gripping, save time, improve welding efficiency.

Referring to fig. 3, 4, 5 and 6, in this embodiment, the closing mechanism 8 includes an outer shaft 81, an inner shaft 82, a first circular disc 83, a second circular disc 84, straight slots 85, an arc-shaped slot 86, an arc-shaped top plate 87, an elastic rubber cover 88 and a flexible elastic airbag ring 89, a supporting expansion plate 10 is fixedly connected to one side end surface of the mounting frame 61 away from the first clamping mechanism 5 through a flexible fixing plate 9, a sliding ring is fixedly connected to the upper end surface of the supporting expansion plate 10, an outer shaft 81 is slidably connected to an inner cavity of the sliding ring, two first circular discs 83 are fixedly connected to an inner cavity of the outer shaft 81, the inner shaft 82 is rotatably connected to an inner cavity of the outer shaft 81, slotted holes are symmetrically formed on one side of the two first circular discs 83 on the outer wall of the outer shaft 81, a protruding block is fixedly connected to an outer wall of the inner shaft 82, the protruding block penetrates through the slotted holes and is fixedly connected to the second circular disc 84 corresponding to the first circular discs 83, a plurality of straight slots 85 are equidistantly formed on the circumference of the side end surface of the first circular discs 83, and the inside sliding connection of straight flute 85 has the traveller 11, the fixedly connected with arc top piece 87 of one end of traveller 11, the second disc 84 side end surface equidistance has seted up a plurality of and the corresponding arc groove 86 of straight flute 85, the section sliding connection that fan-shaped top piece was kept away from to the traveller 11 is inside arc groove 86, first disc 83 and the outside cover of second disc 84 are equipped with elastic rubber cover 88, elastic rubber cover 88 surface wall fixedly connected with scalable elastic airbag ring 89, flexible fixed plate 9 upper end surface fixedly connected with gas holder, gas holder upper portion intercommunication has gas-supply pipe 12, gas-supply pipe 12 surface wall is provided with the air pump, the outside of interior axle 82 just is located one section fixedly connected with air outlet cage 13 between two first discs 83, outer axle 81 surface wall just is located the outside of air outlet cage 13 and has seted up venthole 14, the one end that gas holder was kept away from to gas-supply pipe 12 runs through interior axle 82 axle center portion and fixedly connected at the inner wall of air outlet cage 13.

After the clamping operation of the first clamping mechanism 5 and the second clamping mechanism 6 on the elbow and the straight pipe is completed, the telescopic fixing plate 9 is pulled to extend, the supporting telescopic plate 10 is pulled to rise, the closing mechanism 8 is moved to the pipe orifice of the straight pipe, then the outer shaft 81 is pushed to slide, the first disc 83 is moved to the welding position, then the inner shaft 82 is rotated to drive the second disc 84 to rotate, the second disc 84 then drives the arc-shaped groove 86 to rotate, the arc-shaped groove 86 extrudes the sliding column 11 to move along the path of the straight groove 85 in the process of rotating and shifting, and drives the arc-shaped top plate 87 to move, the arc-shaped top plate 87 then expands outwards through the elastic rubber cover 88, then the elastic rubber cover 88 pushes the telescopic elastic air bag ring 89 positioned outside to expand until the telescopic elastic air bag ring 89 abuts against the inner wall of the pipe, then the air pump is started to fill the inert gas inside the air storage tank into the air outlet cage 13 through the conveying pipe, then the inert gas enters between the two elastic rubber covers 88 and is gradually and completely filled in the space between the two elastic rubber covers 88, so that the diffusion of the inert gas is reduced, the concentration of the inert gas at the welding position can be quickly increased to the required standard, the protection effect is improved, and the use cost of the inert gas is also reduced.

Referring to fig. 10, the upper end surface of the upper seat plate 1 is provided with a first arc-shaped through groove 16, the lower end surface of the mounting plate 41 is fixedly connected with a fixing column, the lower end of the fixing column penetrates through the first arc-shaped through groove 16 and is fixedly connected with a connecting frame 17, the welding mechanism 7 comprises a ring frame 72, the ring frame 72 is provided with two and all fixedly connected with the lower part of the connecting frame 17, the end surfaces of the two ring frames 72 close to each other are provided with ring grooves, a support plate 73 is commonly and slidably connected between the two ring grooves, a laser welding head 71 is mounted on the end surface of the support plate 73 close to the axis of the ring frame 72, the outer surface wall of one ring frame 72 is fixedly connected with a gear ring, a driving motor 74 is fixedly connected with the end surface of the support plate 73 far away from the axis of the ring frame 72, the output shaft of the driving motor 74 is fixedly connected with a gear engaged with the gear ring, the end surface of the mounting frame 61 close to the ring frame 72 is fixedly connected with a transverse plate 18, the upper end surface of the transverse plate 18 and the lower part of the outer surface wall of the ring frame 72 are commonly and fixedly connected with a limiting telescopic rod 19, after the inert gas filling is completed, the driving motor 74 is started to drive the gear to rotate, and the gear drives the laser welding head 71 to rotate around the ring frame 72 through the gear ring to perform welding operation on the joint of the bent pipe and the straight pipe.

During operation, firstly, the angles of the first clamping mechanism 5, the second clamping mechanism 6 and the welding mechanism 7 and the bending angle of the bent pipe are adjusted through the angle adjusting mechanism 4, so that the angles of the three are consistent with the bending radian of the bent pipe, then the upper base plate 1 is driven to ascend through the electric telescopic rod 3, the bent pipe is placed into the first clamping mechanism 5, the straight pipe is placed into the second clamping mechanism 6, then the upper base plate 1 is controlled to descend to clamp the placed bent pipe and the straight pipe, the sealing mechanism 8 extends into the welding position of the pipeline after clamping is completed, the inner cavity of the pipeline at the welding position is isolated and sealed through the sealing mechanism 8, inert gas is filled, and finally the welding mechanism 7 is started to weld the connecting position of the straight pipe and the bent pipe.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a laser welding equipment for inflammable and explosive medium pipeline, includes upper seat board (1) and lower bedplate (2), its characterized in that: the upper seat plate (1) is fixedly connected with four corners of the upper end face of the lower seat plate (2) through an electric telescopic rod (3), an angle adjusting mechanism (4) is installed at the right part of the upper end face of the upper seat plate (1), a first clamping mechanism (5) for clamping and limiting a pipeline elbow is installed between the upper seat plate (1) and the lower seat plate (2) and located below the angle adjusting mechanism (4), two second clamping mechanisms (6) for clamping and limiting a conveying straight pipe are installed at the left part and the front part of the upper end face of the lower seat plate (2) and located at the first clamping mechanism (5), the angle adjusting mechanism (4) is used for adjusting an included angle between the two second clamping mechanisms (6), two welding mechanisms (7) corresponding to the two second clamping mechanisms (6) are installed at the lower part of the angle adjusting mechanism (4) and located between the upper seat plate (1) and the lower seat plate (2), a laser welding head (71) is arranged in the welding mechanism (7), the second clamping mechanism (6) comprises an installation frame (61), and a closing mechanism (8) is arranged on the end face of one side, away from the first clamping mechanism (5), of the installation frame (61);

the sealing mechanism (8) comprises an outer shaft (81), an inner shaft (82), first disks (83), second disks (84), a straight groove (85), an arc-shaped groove (86), an arc-shaped top sheet (87), an elastic rubber cover (88) and a telescopic elastic air bag ring (89), one side end face, away from the first clamping mechanism (5), of the mounting rack (61) is fixedly connected with a supporting expansion plate (10) through a telescopic fixing plate (9), the upper end face of the supporting expansion plate (10) is fixedly connected with a sliding ring, an inner cavity of the sliding ring is slidably connected with the outer shaft (81), the inner cavity of the outer shaft (81) is fixedly connected with the two first disks (83), the inner cavity of the outer shaft (81) is rotatably connected with the inner shaft (82), slotted holes are symmetrically formed in the outer surface wall of the outer shaft (81) and one side, which is located on the two first disks (83), and a convex block is fixedly connected with the outer surface wall of the inner shaft (82), and the lug wears out slotted hole and fixedly connected with and first disc (83) corresponding second disc (84), a plurality of straight flute (85) have been seted up to first disc (83) side end face circumference equidistance, and straight flute (85) inside sliding connection has traveller (11), traveller (11) one end fixedly connected with arc top piece (87), a plurality of and straight flute (85) corresponding arc wall (86) have been seted up to second disc (84) side end face equidistance, and one section sliding connection that sector top piece was kept away from in traveller (11) is inside arc wall (86), first disc (83) and second disc (84) outside cover are equipped with elastic rubber cover (88), and elastic rubber cover (88) outward appearance wall fixedly connected with is scalable elasticity gasbag ring (89).

2. The laser welding apparatus for inflammable and explosive medium conveying pipe according to claim 1, characterized in that: flexible fixed plate (9) up end fixedly connected with gas holder, gas holder upper portion intercommunication has gas-supply pipe (12), gas-supply pipe (12) exterior wall is provided with the air pump, one section fixedly connected with that interior axle (82) outside just is located between two first discs (83) goes out air cage (13), outer axle (81) exterior wall just is located the outside of going out air cage (13) and has seted up venthole (14), the one end that the gas holder was kept away from in gas-supply pipe (12) runs through interior axle (82) axle center portion and fixed connection at air cage (13) inner wall.

3. The laser welding apparatus for inflammable and explosive medium conveying pipe according to claim 1, characterized in that: the angle adjusting mechanism (4) comprises a mounting plate (41), a mounting shaft (42), an end face gear ring seat (43), a limiting end face gear ring (44) and a pressing wheel (45), the upper end face of the upper base plate (1) is fixedly connected with the mounting shaft (42), the outer surface wall of the mounting shaft (42) is rotatably connected with two mounting plates (41), the upper end faces of the mounting plates (41) are fixedly connected with the end face gear ring seat (43), the end face gear ring seat (43) is sleeved outside the mounting shaft (42), the limiting end face gear ring (44) matched with the end face gear ring seat (43) is sleeved outside the mounting shaft (42), the outer surfaces of the two end face gear rings are fixedly connected with a C-shaped rod (46) together, the sliding vertical groove (47) is formed in the upper part of the outer surface wall of the mounting shaft (42), and a sliding block (48) arranged inside the sliding vertical groove (47) is fixedly connected with the inner cavity wall of the limiting end face gear ring (44) positioned on the upper part of the mounting shaft (42), common fixedly connected with reset spring (49) between slider (48) side end face and the vertical groove (47) cell wall that slides is located installation axle (42) upper portion the symmetry fixedly connected with folded plate (15) of spacing terminal surface ring gear (44) upper end face, two be connected with pinch roller (45) through the common off-axis rotation of pivot between folded plate (15).

4. The laser welding apparatus for inflammable and explosive medium transfer pipes according to claim 3, characterized in that: a first arc-shaped through groove (16) is formed in the upper end face of the upper seat plate (1), a fixing column is fixedly connected to the lower end face of the mounting plate (41), the lower end of the fixing column penetrates through the first arc-shaped through groove (16) and is fixedly connected with a connecting frame (17), the welding mechanism (7) comprises ring frames (72), the ring frames (72) are provided with two lower parts which are fixedly connected with connecting frames (17), the end surfaces of one sides of the two ring frames (72) close to each other are respectively provided with an annular groove, a support plate (73) is connected between the two annular grooves in a sliding way, a laser welding head (71) is arranged on the end surface of one side of the support plate (73) close to the axle center of the ring frame (72), the outer surface wall of one of the ring frames (72) is fixedly connected with a gear ring, the end face of one side of the support plate (73) far away from the axle center of the ring frame (72) is fixedly connected with a driving motor (74), and an output shaft of the driving motor (74) is fixedly connected with a gear meshed with the gear ring.

5. The laser welding apparatus for inflammable and explosive medium conveying pipe according to claim 4, wherein: the side end face of the mounting frame (61) close to the ring frame (72) is fixedly connected with a transverse plate (18), and the upper end face of the transverse plate (18) and the lower portion of the outer surface wall of the ring frame (72) are fixedly connected with a limiting telescopic rod (19) together.

6. The laser welding apparatus for inflammable and explosive medium transfer pipes according to claim 5, wherein: no. one fixture (5) include first spring telescopic ejector rod (51), go up arc clamping piece (52), second spring telescopic ejector rod (53) and arc clamping piece (54) down, link (17) are close to a side end face of installation axle (42) and pass through first spring telescopic ejector rod (51) of horizontal pole fixedly connected with, arc clamping piece (52) are gone up to first spring telescopic ejector rod (51) lower extreme fixedly connected with, arc clamping piece (54) are down passed through second spring telescopic ejector rod (53) fixedly connected with to diaphragm (18) up end.

7. The laser welding apparatus for inflammable and explosive medium conveying pipe according to claim 1, characterized in that: the second clamping mechanism (6) comprises a mounting seat (62), an extrusion rod (63), an L-shaped rod (64), an extrusion frame (65) and an arc-shaped plate (66), the upper end face of the lower seat plate (2) is fixedly connected with an arc-shaped slide rod (20) corresponding to the mounting plate (41), the outer part of the arc-shaped slide rod (20) is slidably connected with a sliding plate (21), the mounting frame (61) is fixedly connected with the upper end face of the sliding plate (21), the upper end face of the vertical section of the mounting frame (61) is fixedly connected with the mounting seat (62), the upper end face of the mounting seat (62) is slidably connected with the extrusion rod (63) through a sliding seat (22) matched with a sliding block, one side end face of the extrusion rod (63) close to the middle part of the mounting frame (61) is fixedly connected with the arc-shaped plate (66), the side end face of the extrusion rod (63) is provided with a slotted hole, and the inner part of the slotted hole is slidably connected with an extrusion block (23), an extrusion spring (24) is fixedly connected between the end surface of the side of the extrusion block (23) and the inner groove wall of the groove hole, the end surface of the side of the extrusion block (23) is rotationally connected with an extrusion frame (65), the upper end surface of the mounting seat (62) is rotationally connected with an L-shaped rod (64) through a lug, the upper part of the extrusion frame (65) is mutually and rotatably connected with the corner of the L-shaped rod (64), the side end face of the upper section of the L-shaped rod (64) is fixedly connected with an extrusion column (25), a second arc-shaped through groove (26) corresponding to the two second clamping mechanisms (6) is arranged on the upper end surface of the upper seat plate (1), terminal surface fixedly connected with upstand under mounting panel (41), the upstand runs through second arc and leads to groove (26) and fixedly connected with X shape pole (27), four tip fixedly connected with and the corresponding square board (28) of L shape pole (64) of X shape pole (27), square board (28) side end face seted up with squeeze column (25) matched with extrusion chute (29).

8. The laser welding apparatus for inflammable and explosive medium transfer pipes according to claim 7, wherein: the middle of the upper end face of the mounting rack (61) is fixedly connected with an arc-shaped placing plate (30) through a fixing cylinder.