CN113231769A - Auxiliary welding equipment and welding method for stiffening ring of large-diameter thin-wall pressure steel pipe - Google Patents
Auxiliary welding equipment and welding method for stiffening ring of large-diameter thin-wall pressure steel pipe Download PDFInfo
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- CN113231769A CN113231769A CN202110644777.1A CN202110644777A CN113231769A CN 113231769 A CN113231769 A CN 113231769A CN 202110644777 A CN202110644777 A CN 202110644777A CN 113231769 A CN113231769 A CN 113231769A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 141
- 239000010959 steel Substances 0.000 title claims abstract description 141
- 238000003466 welding Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 210000000078 claw Anatomy 0.000 claims description 65
- 238000000605 extraction Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 6
- 239000004429 Calibre Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000032258 transport Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application relates to auxiliary welding equipment and a welding method for stiffening rings of large-diameter thin-wall pressure steel pipes, which comprises a frame body detachably arranged on the pressure steel pipe to be welded, wherein one end of the frame body is used for being arranged at one end of the pressure steel pipe to be welded, the other end of the frame body is used for being arranged at the other end of the pressure steel pipe to be welded, a supporting device for placing the stiffening rings is arranged on the frame body, an extracting mechanism for extracting the stiffening rings from the supporting device, and a pressing device for pressing the stiffening rings on the outer wall of the pressure steel pipe to be welded, the extracting mechanism is arranged at one end of the frame body, the supporting device is arranged at the other end of the frame body, and in the welding process, as the pressure steel pipe is vertically arranged along the axial direction, the stress direction is along the axial direction of the pressure steel pipe, the pressure steel, during welding, the stiffening ring can be effectively attached to the outer wall of the pressure steel pipe, and the welding efficiency is high and the welding quality is high.
Description
Technical Field
The application relates to the field of welding equipment, in particular to auxiliary welding equipment and a welding method for a stiffening ring of a large-caliber thin-wall pressure steel pipe.
Background
Along with the demand of society to the clean energy continuous expansion, hydroelectric power generation has obtained the rapid development, at hydroelectric power generation in-process, can use penstock, and because water pressure is great in the diversion in-process, in order to increase penstock's stability, then need set up stiffening ring outside penstock.
Heavy-calibre pressure steel pipe has stronger using value in long distance water delivery engineering project, but pressure steel pipe is in the manufacturing process, because draw ratio is very big, often meets the steel pipe and arouses because of the dead weight to warp under the state of keeping flat for steel pipe circularity is not enough, and the stiffening ring is the annular of standard, consequently, leads to the stiffening ring when the installation and the steel pipe between the gap too big, and the welding consumes time long and stiffening ring installation quality is difficult to guarantee.
Disclosure of Invention
In order to improve welding efficiency and improve stiffening ring installation quality, the application provides auxiliary welding equipment and a welding method for a stiffening ring of a large-caliber thin-wall pressure steel pipe.
In a first aspect, the application provides a supplementary welding equipment of heavy-calibre thin wall pressure steel pipe stiffening ring adopts following technical scheme:
the utility model provides a supplementary welding equipment of heavy-calibre thin wall penstock stiffening ring, is including being used for dismantling to set up the support body on treating the penstock, support body one end is used for setting up the one end of treating the penstock, and the other end of support body is used for setting up the other end of treating the penstock, be provided with the supporting device that is used for placing the stiffening ring on the support body, be used for taking the mechanism of drawing of stiffening ring from the supporting device and be used for compressing tightly the stiffening ring at the closing device who treats penstock outer wall, it is located support body one end to draw the mechanism, the supporting device is located the support body other end.
By adopting the technical scheme, in use, the pressure steel pipe to be welded is vertically placed on the ground, so that the axial direction of the pressure steel pipe is vertical to the horizontal plane, then the extraction mechanism end of the frame body is fixed at the higher end of the pressure steel pipe, the bearing device end of the frame body is placed at the lower end of the pressure steel pipe, the stiffening ring is placed on the bearing device, then the stiffening ring on the bearing device is extracted to the specified height through the extraction mechanism, and is tightly pressed through the pressing device, so that the stiffening ring is tightly attached to the outer wall of the pressure steel pipe, then a worker can weld the stiffening ring through welding equipment, in the welding process, as the pressure steel pipe is vertically placed along the axial direction, the stress direction is along the axial direction of the pressure steel pipe, the pressure steel pipe is not easy to generate radial deformation in the welding process, and the pressure steel pipe is not easy to generate insufficient roundness, during welding, stiffening ring and pressure steel pipe outer wall can effectively laminate, and welding efficiency is high and welding quality is high.
Preferably, the supporting device comprises a supporting plate and a first driving mechanism, the supporting plate is arranged on the frame body in a sliding mode and is far away from one end of the extracting mechanism, the first driving mechanism is used for driving the supporting plate to slide, the supporting plate slides along the direction from one side of the frame body, away from one side of the pressure steel pipe to be welded, to one side of the frame body, close to one side of the pressure steel pipe to be welded, and a conveying port is formed in the frame body and is used for allowing the supporting plate to slide from one side of the frame body to the other side of the frame body.
Through adopting above-mentioned technical scheme, because the stiffening ring is the metal material, therefore the stiffening ring quality is heavier, place the stiffening ring on receiving device for convenient, can adopt the fork truck transportation when removing the stiffening ring usually, for this reason will accept the board and slide the setting, need place the stiffening ring to accepting the board when, will accept the board drive to the support body and deviate from to wait to weld pressure steel pipe side through first actuating mechanism, can conveniently place the stiffening ring to accepting on the board through fork truck this moment, the stiffening ring is placed and is accomplished the back, will accept the board drive to be close to pressure steel pipe side through first actuating mechanism, can conveniently draw through extraction mechanism this moment, it conveniently transports the stiffening ring to the support body opposite side from support body one side to set up the transportation mouth, both conveniently place the stiffening ring, conveniently draw the mechanism again and draw the stiffening ring.
Preferably, the extracting mechanism comprises a reel rotatably arranged at one end of the frame body, a flexible rope wound on the reel and a second driving mechanism driving the reel to rotate, the free end of the flexible rope is provided with an electromagnet for absorbing the stiffening ring, and the free end of the flexible rope is located on the side, facing the pressure steel pipe to be welded, of the frame body.
By adopting the technical scheme, the stiffening ring can be conveniently extracted to the required height through the matching of the reel and the flexible rope, and the matching of the reel and the flexible rope can meet the requirement of lifting any size within a specified range; because the stiffening ring is crescent slice, consequently can draw the stiffening ring fast through the electro-magnet.
Preferably, the support body is provided with a sliding seat along one end of the support body to the other end in a sliding manner, the support body is provided with a driving piece for driving the sliding seat to slide, the sliding seat is provided with a lifting device for lifting a stiffening ring in a sliding manner, the lifting device slides along the direction from the side of the support body to the side of the pressure steel pipe to be welded, and the sliding seat is provided with a third driving mechanism for driving the lifting device to slide.
Through adopting above-mentioned technical scheme, because the stiffening ring draws through the electro-magnet, consequently can lead to the welding department to have great magnetism if direct welding, influence welding quality, set up the lifting device for this reason, place the stiffening ring on the lifting device through drawing the mechanism, then the electro-magnet breaks away from the stiffening ring, later transport the stiffening ring to regulation position department welding through the lifting device, influence welding quality because of great magnetism when avoiding welding to a certain extent.
Preferably, the lifting device is including sliding the sliding jaw that sets up on the sliding seat, third actuating mechanism is used for driving the sliding jaw and slides, the sliding jaw orientation is waited to weld the expansion claw that the penstock end slided and is provided with and is used for accepting the stiffening ring, the expansion claw slides along the frame side to the direction of waiting to weld the penstock side, be provided with between sliding jaw and the expansion claw and be used for driving the expansion claw and have all the time to wait to weld the elastic component of penstock side slip trend, closing device is close to the conflict arch of waiting to weld the penstock side including setting up at the sliding jaw, the conflict arch is used for conflicting with the external diameter department of stiffening ring.
By adopting the technical scheme, the lifting requirements of stiffening rings of various models can be met through the matching of the sliding claw and the telescopic claw, when the sliding claw drives the telescopic claw and the stiffening ring to move towards the pressure steel pipe side, the telescopic claw and the stiffening ring are in contact with the outer wall of the pressure steel pipe, at the moment, if the distance from the telescopic claw to the touch bulge is larger than the width of the stiffening ring, the telescopic claw is firstly in contact with the outer wall of the pressure steel pipe, along with the movement of the sliding claw, the telescopic claw can bear larger touch force of the pressure steel pipe, at the moment, the telescopic claw slides on the sliding claw, so that the stiffening ring is gradually close to the pressure steel pipe until the stiffening ring is attached to the outer wall of the pressure steel pipe; if the length of the telescopic claw is smaller than the width of the stiffening ring, the stiffening ring is directly attached to the outer wall of the pressure steel pipe, so that the subsequent welding is facilitated; wherein can guarantee through contradicting protruding stiffening ring and the inseparable laminating of pressure steel pipe.
Preferably, the support body sets up and draws the mechanism end and be provided with walking assembly, walking assembly sets up the walking wheel on the support body including rotating, the walking wheel is used for with the tip roll cooperation of treating welding pressure steel pipe, be provided with first support frame and second support frame on the support body, first support frame is along treating that welding pressure steel pipe side slides the setting to the direction of support body side, be provided with on the support body and be used for driving the gliding fourth actuating mechanism of first support frame, the second support frame is fixed to be set up on the support body, it is provided with the driving wheel to rotate on the first support frame, rotates on the second support frame and is provided with the fixed wheel, so driving wheel and fixed wheel all are used for along treating the circumference roll of welding pressure steel pipe, the fixed wheel be used for with treat the outer wall contact of welding pressure steel pipe, the driving wheel be used for with treat the.
Through adopting above-mentioned technical scheme, because penstock size is great, consequently need divide into a plurality of parts with the stiffening ring in order to weld stiffening ring on penstock, the stiffening ring of a plurality of parts forms the ring, during the welding, needs transport the stiffening ring of a plurality of parts respectively to the regulation position and weld, can satisfy the support body through walking subassembly around the circumference removal of waiting to weld penstock, makes things convenient for the stiffening ring of the different positions department of penstock.
Preferably, the frame body deviates from and draws the mechanism side and is provided with the locating part that is used for restricting the frame body and treats the distance between the welded pressure steel pipe, the locating part is including setting up the bracing piece on the frame body and being located the bracing piece and treating the butt wheel of welded pressure steel pipe end towards, the butt wheel be used for with treat the outer wall butt of welded pressure steel pipe.
Through adopting above-mentioned technical scheme for the both ends of support body all keep sufficient distance with pressure steel pipe within a definite time, make things convenient for follow-up stiffening ring and the welding stiffening ring of drawing.
Preferably, the support body deviates from and draws the mechanism side and be provided with the supporting wheel that is used for supporting the support body, the supporting wheel rotates and sets up on the support body.
Through adopting above-mentioned technical scheme, conveniently transport the support body to penstock department before the welding, also conveniently remove the support body after the welding finishes.
Preferably, the frame body is provided with and draws the mechanism end and be provided with along frame body one end to the gliding elevating platform of other end direction, be provided with on the frame body and be used for driving the gliding fifth actuating mechanism of elevating platform, it all sets up on the elevating platform to rotate wheel, first support frame, second support frame and fourth actuating mechanism.
Through adopting above-mentioned technical scheme, can satisfy the processing of different length penstocks through the upgrading platform, also conveniently set up driving wheel and fixed wheel in penstocks inside and outside both sides simultaneously.
In a second aspect, the present application provides a method for welding a stiffening ring of a large-diameter thin-wall pressure steel pipe, which adopts the following technical scheme:
a method for welding stiffening rings of large-diameter thin-wall pressure steel pipes comprises the following welding steps:
the method comprises the following steps: vertically placing the pressure steel pipe, so that the axial direction of the pressure steel pipe is vertical to the horizontal direction;
step two: lifting the stiffening ring to a specified height and enabling the stiffening ring to be tightly attached to the outer wall of the pressure steel pipe;
step three: welding the pressure steel pipe and the stiffening ring which are attached together through welding equipment;
step four: and repeating the first step to the third step to complete the welding of all the stiffening rings.
Through adopting above-mentioned technical scheme, when the welding, because penstock sets up immediately, consequently the difficult problem that penstock takes place radial deformation that appears for penstock efficiency is higher when the welding.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the stiffening ring is welded, the axial direction of the pressure steel pipe is vertical, so that the pressure steel pipe is not easy to be subjected to large radial force, the pressure steel pipe is not easy to generate radial deformation, the roundness of the pressure steel pipe is basically unchanged before and after welding, the welding of the stiffening ring is facilitated, and meanwhile, the stiffening ring is tightly matched with the pressure steel pipe during welding, so that the welding quality is better;
2. through the equipment of this application can conveniently transport stiffening ring to the regulation height, make things convenient for stiffening ring welding, owing to be equipped with the walking subassembly on the support body simultaneously, consequently can satisfy the welding in a plurality of positions of pressure steel pipe circumference.
Drawings
Fig. 1 is a schematic view of a use state of an embodiment of the present application.
Fig. 2 is a front view of an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a lifting device according to an embodiment of the present application.
Description of reference numerals: 1. a frame body; 2. a receiving device; 211. a bearing plate; 212. a first drive mechanism; 3. an extraction mechanism; 311. coiling; 312. a flexible cord; 313. a second drive mechanism; 4. a pressing device; 411. abutting against the protrusion; 5. a transport port; 6. an electromagnet; 7. a sliding seat; 8. a lifting device; 811. a sliding jaw; 812. a telescopic claw; 813. an elastic member; 9. a third drive mechanism; 10. a walking assembly; 101. a traveling wheel; 102. a first support frame; 103. a second support frame; 104. a fourth drive mechanism; 105. a driving wheel; 106. fixing the wheel; 11. a limiting member; 111. a support bar; 112. a butting wheel; 12. a support wheel; 13. a lifting platform; 14. a fifth drive mechanism; 15. a drive member; 16. welding the pressure steel pipe; 17. a stiffening ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses supplementary welding equipment of heavy-calibre thin wall penstock stiffening ring, as shown in fig. 1, including support body 1 and the receiving device 2 of setting on support body 1, draw mechanism 3 and closing device 4, wherein, support body 1 is along waiting to weld the axial setting of penstock 16, and support body 1 can be dismantled and fix and wait to weld penstock 16, receiving device 2 is located the bottom of support body 1 and is used for placing stiffening ring 17, draw the top that mechanism 3 is located support body 1 and be used for drawing stiffening ring 17 on receiving device 2 to the regulation height, closing device 4 is used for compressing tightly the outer wall of waiting to weld penstock 16 with the stiffening ring 17 who draws.
Referring to fig. 1 and 2, the receiving device 2 includes a receiving plate 211 slidably disposed on the frame body 1, a first driving mechanism 212 for driving the receiving plate 211 to slide is disposed on the frame body 1, and a sliding direction of the receiving plate 211 coincides with a radial direction of the pressure steel pipe 16 to be welded, so that it can be ensured that the receiving plate 211 drives the stiffening ring 17 to move to a surface of the pressure steel pipe 16 to be welded, because the stiffening ring 17 is long, in order to facilitate transporting the stiffening ring 17 from a side of the frame body 1 away from the pressure steel pipe 16 to be welded to a position between the frame body 1 and the pressure steel pipe 16 to be welded, a transportation port 5 is disposed on the frame body 1, the transportation port 5 is located at a bottom of the frame body 1, and the transportation port 5 is formed by bending the frame body 1 and mainly allows the stiffening ring 17 and the receiving plate 211 to pass through; in this embodiment, in order to make the placement of the stiffening ring 17 more stable, the side of the receiving plate 211 away from the penstock 16 to be welded is provided with a boss, so that the motion of the receiving plate 211 can be ensured, and the stiffening ring 17 is driven to move, thereby avoiding a situation that the stiffening ring 17 falls off due to a large relative displacement between the stiffening ring 17 and the receiving plate 211 when the receiving plate 211 suddenly moves to a certain extent.
Wherein, a lifting platform 13 is arranged at the top position of the frame body 1, the lifting platform 13 can slide on the frame body 1, as shown in fig. 1, the lifting platform 13 slides along the axial direction of the penstock 16 to be welded, a fifth driving mechanism 14 is arranged on the frame body 1, and the lifting platform 13 can be driven to slide up and down by the fifth driving mechanism 14; a traveling assembly 10 is arranged on the lifting platform 13, the traveling assembly 10 is used for matching with the upper end of the pressure steel pipe 16 to be welded, the traveling assembly 10 can move along the circumferential direction of the pressure steel pipe 16 to be welded, and the extracting mechanism 3 is positioned on the lifting platform 13.
The walking assembly 10 comprises a walking wheel 101 rotatably arranged on a lifting platform 13, a rotating shaft of the walking wheel 101 is arranged along the radial direction of the pressure steel pipe 16 to be welded, the walking wheel 101 is used for abutting against the upper end surface of the pressure steel pipe 16 to be welded in use, the walking wheel 101 can roll along the circumferential direction of the pressure steel pipe 16 to be welded on the upper end surface of the pressure steel pipe 16 to be welded, a first support frame 102 is arranged on one side of the walking wheel 101, a second support frame 103 is arranged on the other side of the walking wheel 101, the first support frame 102 and the second support frame 103 are oppositely arranged, the first support frame 102 is positioned on the side of the walking wheel 101 away from the frame body 1, the second support frame 103 is positioned on the side of the walking wheel 101 close to the frame body 1, wherein the first support frame 102 is slidably arranged on the lifting platform 13, the sliding direction of the first support frame 102 is along the radial direction of the pressure steel pipe 16 to be welded, and a fourth driving mechanism 104 for driving the first support frame 102 to move is arranged on the lifting platform 13, a driving wheel 105 is rotatably arranged on the first support frame 102, a fixed wheel 106 is rotatably arranged on the second support frame 103, the driving wheel 105 and the fixed wheel 106 are both used for contacting and rolling matching with the pressure steel pipe 16 to be welded, and the rotating axes of the fixed wheel 106 and the driving wheel 105 are both parallel to the axis of the pressure steel pipe 16 to be welded; in use, the first support frame 102 is located on the inner side of the pressure steel pipe 16 to be welded, the second support frame 103 is located on the outer side of the pressure steel pipe 16 to be welded, the first support frame 102 is driven by the fourth driving mechanism 104 to slide, and the pressure steel pipe 16 to be welded can be clamped between the fixed wheel 106 and the driving wheel 105.
When the frame body 1 needs to be fixed on the pressure steel pipe 16 to be welded, the fifth driving mechanism 14 drives the lifting platform 13 to ascend until the height of the first support frame 102 is greater than that of the pressure steel pipe 16 to be welded, at this time, the fourth driving mechanism 104 drives the first support frame 102 to move towards the inner side of the pressure steel pipe 16 to be welded until the first support frame 102 completely moves to the inner side of the pressure steel pipe 16 to be welded, then the fifth driving mechanism 14 drives the lifting platform 13 to descend until the traveling wheels 101 collide with the end parts of the pressure steel pipe 16 to be welded, then the fourth driving mechanism 104 drives the first support frame 102 to move towards the frame body 1 side until the pressure steel pipe 16 to be welded is clamped between the fixed wheels 106 and the driving wheels 105, and at this time, the fixing of the frame body 1 is completed.
As shown in fig. 1 and 2, the extracting mechanism 3 includes a reel 311, a flexible rope 312 and a second driving mechanism 313, the reel 311 is rotatably disposed on the lifting table 13, the flexible rope 312 is wound on the reel 311, the second driving mechanism 313 is fixed on the lifting table 13 and is used for driving the reel 311 to rotate so as to drive the free end of the flexible rope 312 to move up and down along the frame body 1, the free end of the flexible rope 312 passes through the lifting table 13 and is located on the side of the frame body 1 facing the pressure steel pipe 16 to be welded, so as to facilitate extracting the stiffening ring 17 to the outer wall of the pressure steel pipe 16 to be welded during welding; the free end of the flexible rope 312 is provided with the electromagnet 6, and the power supply line of the electromagnet 6 is arranged along the flexible rope 312, so that the power supply requirement when the electromagnet 6 moves up and down can be ensured. In order to facilitate the electromagnet 6 to suck the stiffening ring 17, the position of the stiffening ring 17 on the bearing plate 211 needs to be strictly controlled when the stiffening ring 17 is placed, so that the electromagnet 6 can fall to the vicinity of the gravity center of the stiffening ring 17 when falling to the stiffening ring 17 freely, and the stiffening ring 17 is relatively balanced when being lifted, thereby facilitating subsequent operation.
As shown in fig. 2 and 3, a sliding seat 7 is slidably disposed on the frame body 1, the sliding seat 7 slides along the axial direction of the pressure steel pipe 16 to be welded, in this embodiment, a sliding groove is formed in the frame body 1 along the height direction of the frame body 1, a sliding block matched with the sliding groove is disposed on the sliding seat 7, the sliding seat 7 is made to stably move by the matching of the sliding groove and the sliding block, and a driving member 15 for driving the sliding seat 7 to slide is disposed on the frame body 1; the sliding seat 7 is provided with a lifting device 8, the lifting device 8 slides along the direction towards the pressure steel pipe 16 to be welded, the lifting device 8 is convenient to transport the stiffening ring 17 to be attached to the surface of the pressure steel pipe 16 to be welded, and the sliding seat 7 is provided with a third driving mechanism 9 for driving the lifting device 8 to slide.
As shown in fig. 3, the lifting device 8 includes two sliding claws 811, in this embodiment, two sliding claws 811 are provided, two sliding claws 811 are slidably connected to the sliding base 7, the third driving mechanism 9 is configured to drive the two sliding claws 811 to slide, the sliding claws 811 are elongated, one end of each sliding claw 811 faces the side of the pressure steel pipe 16 to be welded, a telescopic claw 812 is slidably provided on the sliding claw 811 facing the side of the pressure steel pipe 16 to be welded, the telescopic claw 812 slides in a direction facing the side of the pressure steel pipe 16 to be welded, an elastic member 813 is provided between the telescopic claw 812 and the sliding claws 811, in this embodiment, the telescopic claw 812 is slidably sleeved on the sliding claw 811, the elastic member 813 is a spring, one end of the spring is connected to the telescopic claw 812, and the other end is connected to the sliding claw 811, in a specific use, a limiting device can be provided between the sliding claws 811 and the telescopic claw 812, and can limit a sliding range and a sliding distance of the telescopic claw 811, the telescopic claws 812 are effectively prevented from being disengaged from the sliding claws 811. The pressing device 4 includes an interference protrusion 411 disposed on the side of the sliding claw 811 close to the penstock 16 to be welded, the interference protrusion 411 is used for interfering with the outer diameter of the stiffening ring 17, in this embodiment, the interference protrusion 411 is fixed on the side of the sliding claw 811 where the telescopic claw 812 is sleeved, and the length of the telescopic claw 812 is smaller than the width of the stiffening ring 17.
When the flexible rope pulling device is used, the stiffening ring 17 is adsorbed and lifted by the electromagnet 6, after the stiffening ring 17 is conveyed to the position above the sliding claw 811, the sliding claw 811 and the telescopic claw 812 are driven to extend to the position under the stiffening ring 17 by the third driving mechanism 9, then the reel 311 is driven to rotate by the second driving mechanism 313, the free end of the flexible rope 312 is extended until the stiffening ring 17 is placed on the telescopic claw 812 and then stops, and finally the power supply of the electromagnet 6 is disconnected, so that the electromagnet 6 is disconnected from the stiffening ring 17; then, the driving part 15 drives the sliding seat 7 to slide to a specified height along the height direction of the frame body 1, then the third driving mechanism 9 drives the sliding claw 811 to move towards the side of the pressure steel pipe 16 to be welded until the stiffening ring 17 abuts against the pressure steel pipe 16 to be welded, then welding can be carried out, after welding is finished, the sliding seat 7 and the sliding claw 811 are driven to move to the initial position, then, another stiffening ring 17 can be transported through the extraction mechanism 3 for welding, and the welding can be finished after the reciprocating circulation; in the process that the stiffening ring 17 is gradually abutted against the outer wall of the penstock 16 to be welded, if the telescopic claw 812 is firstly contacted with the outer wall of the penstock 16 to be welded, the telescopic claw 812 slides on the sliding claw 811 under the action of the third driving mechanism 9, and in the process, the stiffening ring 17 is abutted against the abutting protrusion 411, so that the stiffening ring 17 cannot move along with the telescopic claw 812, and the stiffening ring 17 can be gradually close to the penstock 16 to be welded.
Wherein, be provided with supporting wheel 12 in 1 bottom of support body, supporting wheel 12 is the universal wheel in this embodiment, conveniently removes support body 1 to the optional position. Meanwhile, the limiting member 11 is arranged at the bottom side of the frame body 1, the limiting member 11 comprises a support rod 111 and a butting wheel 112, one end of the support rod 111 is fixed at the bottom side of the frame body 1, the other end of the support rod is connected with the butting wheel 112, and the butting wheel 112 is used for butting against the outer wall of the pressure steel pipe 16 to be welded.
In this embodiment, the first driving mechanism 212, the second driving mechanism 313, the third driving mechanism 9, the fourth driving mechanism 104, the fifth driving mechanism 14, and the driving member 15 are all oil cylinders, and may be driving devices such as air cylinders and electric cylinders.
When in use, the pressure steel pipe 16 to be welded is vertically placed on the ground, so that the axial direction of the pressure steel pipe 16 to be welded is vertical to the horizontal plane, then the frame body 1 is pushed to the position of the pressure steel pipe 16 to be welded, and drives the lifting platform 13 to ascend through a fifth driving mechanism 14 until the first supporting frame 102 is higher than the upper end of the pressure steel pipe 16 to be welded, then the frame body 1 is pushed to approach the pressure steel pipe 16 to be welded until the first support frame 102 moves to the inner side of the pressure steel pipe 16 to be welded, at this time, the fifth driving mechanism 14 drives the lifting platform 13 to descend until the support wheel 12 abuts against the upper end face of the pressure steel pipe 16 to be welded, then the fourth driving mechanism 104 drives the first support frame 102 to approach the second support frame 103 side until the pressure steel pipe 16 to be welded is clamped between the first support frame 102 and the second support frame 103, and at this time, the fixed wheel 106 and the driving wheel 105 are both attached to the pressure steel pipe 16 to be welded.
Then, the bearing plate 211 is driven by the first driving mechanism 212 to move to the side of the frame body 1 away from the penstock 16 to be welded, then the stiffening ring 17 is placed on the bearing plate 211, and the bearing plate 211 is driven by the first driving mechanism 212 to drive the stiffening ring 17 to move to the position between the frame body 1 and the penstock 16 to be welded; drive reel 311 through second actuating mechanism 313 and rotate for the free end of flexible rope 312 is close to stiffening ring 17, give electro-magnet 6 circular telegram afterwards, make electro-magnet 6 adsorb with stiffening ring 17, with flexible rope 312 rolling, make stiffening ring 17 promoted, then drive sliding seat 7 removes behind stiffening ring 17 bottom, make sliding claw 811 drive flexible claw 812 motion to stiffening ring 17 under, stiffening ring 17 will be placed on flexible claw 812 after cutting off the power supply with electro-magnet 6, then drive sliding seat 7 moves to the regulation position, and drive sliding claw 811 drives flexible claw 812 and tightly supports stiffening ring 17 and to weld after treating welding pressure steel pipe 16 surface.
In a second aspect, the present application provides a method for welding a stiffening ring of a large-diameter thin-wall pressure steel pipe, which adopts the following technical scheme:
the embodiment of the application also discloses a method for welding the stiffening ring 17 of the large-caliber thin-wall pressure steel pipe, which comprises the following welding steps:
the method comprises the following steps: vertically placing the pressure steel pipe, so that the axial direction of the pressure steel pipe is vertical to the horizontal direction;
step two: lifting the stiffening ring to a specified height and enabling the stiffening ring to be tightly attached to the outer wall of the pressure steel pipe;
step three: welding the pressure steel pipe and the stiffening ring which are attached together through welding equipment;
step four: and repeating the first step to the third step to complete the welding of all the stiffening rings.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a supplementary welding equipment of heavy-calibre thin wall pressure steel pipe stiffening ring which characterized in that: including being used for dismantling to set up support body (1) on waiting to weld penstock (16), support body (1) one end is used for setting up the one end of waiting to weld penstock (16), and the other end of support body (1) is used for setting up the other end of waiting to weld penstock (16), be provided with on support body (1) and be used for placing adapter (2) of stiffening ring (17), be used for taking mechanism (3) of taking stiffening ring (17) from adapter (2) and be used for compressing tightly closing device (4) of waiting to weld penstock (16) outer wall with stiffening ring (17), it is located support body (1) one end to draw mechanism (3), adapter (2) are located support body (1) other end.
2. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: bearing device (2) including slide set up in support body (1) keep away from draw accepting board (211) of mechanism (3) one end and be used for the drive to accept board (211) gliding actuating mechanism (212), it waits to weld penstock (16) one side to support body (1) and is close to the direction of waiting to weld penstock (16) one side and slide to support body (1) to accept board (211) along support body (1), be provided with on support body (1) and supply to accept board (211) and slide to support body (1) transport mouth (5) of opposite side from support body (1) one side.
3. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: the extraction mechanism (3) comprises a reel (311) rotatably arranged at one end of the frame body (1), a flexible rope (312) wound on the reel (311) and a second driving mechanism (313) driving the reel (311) to rotate, an electromagnet (6) used for sucking a stiffening ring (17) is arranged at the free end of the flexible rope (312), and the free end of the flexible rope (312) is located on the side, facing the pressure steel pipe (16) to be welded, of the frame body (1).
4. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: the support body (1) is gone up and is slided along support body (1) one end to the other end direction and is provided with sliding seat (7), be provided with on support body (1) and be used for driving gliding driving piece (15) of sliding seat (7), it is provided with lifting device (8) that are used for lifting stiffening ring (17) to slide on sliding seat (7), lifting device (8) are along inclining to the direction of treating welding pressure steel pipe (16) side from support body (1), be provided with on sliding seat (7) and be used for driving gliding third actuating mechanism (9) of lifting device (8).
5. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 4, which is characterized in that: the lifting device (8) comprises a sliding claw (811) which is arranged on the sliding seat (7) in a sliding way, the third driving mechanism (9) is used for driving a sliding claw (811) to slide, the sliding claw (811) is provided with a telescopic claw (812) used for bearing a stiffening ring (17) in a sliding way towards the end of the pressure steel pipe (16) to be welded, the telescopic claw (812) slides along the direction from the side of the frame body (1) to the side of the pressure steel pipe (16) to be welded, an elastic part (813) which is used for driving the telescopic claw (812) to always have the sliding trend towards the side of the pressure steel pipe (16) to be welded is arranged between the sliding claw (811) and the telescopic claw (812), the pressing device (4) comprises an interference bulge (411) arranged on the side of the sliding claw (811) close to the pressure steel pipe (16) to be welded, the interference protrusion (411) is used for interfering with the outer diameter of the stiffening ring (17).
6. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: the frame body (1) is provided with a walking assembly (10) at the end provided with the extraction mechanism (3), the walking assembly (10) comprises a walking wheel (101) rotatably arranged on the frame body (1), the walking wheel (101) is used for being in rolling fit with the end part of the pressure steel pipe (16) to be welded, a first support frame (102) and a second support frame (103) are arranged on the frame body (1), the first support frame (102) is arranged in a sliding manner along the direction from the side of the pressure steel pipe (16) to be welded to the side of the frame body (1), a fourth driving mechanism (104) for driving the first support frame (102) to slide is arranged on the frame body (1), the second support frame (103) is fixedly arranged on the frame body (1), a driving wheel (105) is rotatably arranged on the first support frame (102), a fixed wheel (106) is rotatably arranged on the second support frame (103), and therefore the driving wheel (105) and the fixed wheel (106) are both used for rolling along the circumferential direction of the pressure steel pipe (16) to be welded, the fixed wheel (106) is used for being in contact with the outer wall of the pressure steel pipe (16) to be welded, and the movable wheel (105) is used for being in contact with the inner wall of the pressure steel pipe (16) to be welded.
7. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: the support body (1) deviates from and draws mechanism (3) side and is provided with locating part (11) that is used for limiting support body (1) and treats welding pressure steel pipe (16) distance between, locating part (11) including set up bracing piece (111) on support body (1) and be located bracing piece (111) and treat welding pressure steel pipe (16) butt wheel (112) of end towards, butt wheel (112) are used for with treat the outer wall butt of welding pressure steel pipe (16).
8. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 1, which is characterized in that: the support body (1) deviates from the side of the extracting mechanism (3) and is provided with a supporting wheel (12) used for supporting the support body (1), and the supporting wheel (12) is rotatably arranged on the support body (1).
9. The auxiliary welding equipment for stiffening rings of large-caliber thin-wall pressure steel pipes according to claim 6, characterized in that: the frame body (1) is provided with and draws mechanism (3) end and is provided with along frame body (1) one end to the gliding elevating platform of other end direction (13), be provided with on frame body (1) and be used for driving gliding fifth actuating mechanism (14) of elevating platform (13), it all sets up on elevating platform (13) to rotate wheel (105), first support frame (102), second support frame (103) and fourth actuating mechanism (104).
10. A method for welding stiffening rings of large-diameter thin-wall pressure steel pipes is characterized by comprising the following steps: the method comprises the following welding steps:
the method comprises the following steps: vertically placing the pressure steel pipe, so that the axial direction of the pressure steel pipe is vertical to the horizontal direction;
step two: lifting the stiffening ring to a specified height and enabling the stiffening ring to be tightly attached to the outer wall of the pressure steel pipe;
step three: welding the pressure steel pipe and the stiffening ring which are attached together through welding equipment;
step four: and repeating the first step to the third step to complete the welding of all the stiffening rings.
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| CN202110644777.1A CN113231769A (en) | 2021-06-09 | 2021-06-09 | Auxiliary welding equipment and welding method for stiffening ring of large-diameter thin-wall pressure steel pipe |
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| CN202110644777.1A CN113231769A (en) | 2021-06-09 | 2021-06-09 | Auxiliary welding equipment and welding method for stiffening ring of large-diameter thin-wall pressure steel pipe |
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Application publication date: 20210810 |