CN118046154A - Welding device and method for bridge construction - Google Patents
Welding device and method for bridge construction Download PDFInfo
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- CN118046154A CN118046154A CN202410452156.7A CN202410452156A CN118046154A CN 118046154 A CN118046154 A CN 118046154A CN 202410452156 A CN202410452156 A CN 202410452156A CN 118046154 A CN118046154 A CN 118046154A
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- 238000003466 welding Methods 0.000 title claims abstract description 231
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 82
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 239000012634 fragment Substances 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 21
- 230000002787 reinforcement Effects 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000004140 cleaning Methods 0.000 claims description 27
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 238000005498 polishing Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 22
- 238000010521 absorption reaction Methods 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 6
- 239000003595 mist Substances 0.000 abstract description 6
- 230000003749 cleanliness Effects 0.000 abstract description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 abstract description 2
- 238000006386 neutralization reaction Methods 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 51
- 230000000694 effects Effects 0.000 description 31
- 239000007788 liquid Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- 208000027418 Wounds and injury Diseases 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000008187 granular material Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000012670 alkaline solution Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003496 welding fume Substances 0.000 description 1
Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a welding device and a method for bridge construction, and belongs to the technical field of welding construction equipment. The welding device and the method for bridge construction comprise a bottom frame, a stirrup plate wound with stirrups and a welding machine, wherein a positioning ring is fixedly connected to the top of the bottom frame, the welding machine is fixed on the outer wall of the positioning ring, and the inner wall of the positioning ring is rotationally connected with the welding ring through a first rotating ring; according to the invention, the suction force generated in the dust suction ring by the suction pump is utilized to suck the smoke dust and the fragments generated in the welding process into the dust suction ring, and the suction force is utilized to push the stirring blades to rotate and generate the water mist film in the dust suction ring, so that the smoke dust and the fragments are treated, the air quality in a welding area is improved, the harm of welding gas to operators is reduced, and the collection of particles and the fragments is realized by matching with the arrangement of the structures such as the collecting tank, the resistance plate and the like, the cleanliness of a solution is effectively improved, and the water mist is conveniently lifted for absorption, neutralization and treatment.
Description
Technical Field
The invention relates to the technical field of welding construction equipment, in particular to a welding device and method for bridge construction.
Background
In bridge construction, the steel reinforcement cage is used as an important component of a bearing structure, the welding quality of the steel reinforcement cage directly influences the safety and stability of a bridge, and the application of the steel reinforcement cage rapid orthopedic welding device for bridge construction is beneficial to improving the welding quality and efficiency of the steel reinforcement cage and reducing the construction cost, so that the steel reinforcement cage is an indispensable important device in the field of bridge construction.
The invention discloses a quick orthopedic welding device for a reinforcement cage for bridge construction, which is disclosed by the publication number as CN117020462A, and comprises a welding frame, a welding point moving mechanism, a welding mechanism and an auxiliary correcting mechanism.
In the prior art, a great amount of smoke dust and fragments are generated in the welding process, the smoke dust part can cause damage to the air quality and the body health of operators, and the part Wen Suixie with high height can scatter and adhere to welding equipment, so that the welding equipment is easy to damage; and the stains and oxide layers attached to the welding surface of the main reinforcing steel bar should be removed before the main reinforcing steel bar is welded with the stirrup, and the lack of such a portion in the existing device may result in a reduction in the final welding quality. Therefore, a welding device and a welding method for bridge construction are provided.
Disclosure of Invention
The invention aims to solve the problem that smoke dust and high Wen Suixie generated by welding in the prior art can cause damage to environment, personnel health and equipment; and the problems that the final welding quality is reduced due to the fact that stains and oxide layers attached to the welding surface cannot be removed before welding are solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a welding set for bridge construction, includes chassis, the stirrup dish and the welding machine that twines there is the stirrup, chassis top fixedly connected with retainer plate, the welding machine is fixed on the retainer plate outer wall, the retainer plate inner wall rotates and is connected with first swivel, first swivel inner wall fixedly connected with weld ring, weld ring inner wall fixedly connected with second swivel, second swivel inner wall rotates and is connected with the spacing collar, spacing collar lateral wall fixedly connected with location guide arm, the other end and the chassis top fixedly connected with of location guide arm, the push ring has been cup jointed in the slip of location guide arm outer wall, fixedly connected with wears the sleeve pipe on the push ring, wear the sleeve pipe and support the mutual alignment setting of sleeve pipe, just wear the sleeve pipe and with support the intraductal main reinforcing bar that interlude of sleeve, still include: the pressure welding mechanism is arranged on the positioning ring and used for tightly attaching the stirrups to the outer wall of the main steel bar for welding; the cleaning component is arranged on the limiting ring and is used for cleaning smoke dust and welding scraps generated in the welding process; the polishing mechanism is arranged on the penetrating sleeve and used for polishing and cleaning the welding surface of the main reinforcing steel bar.
In order to realize rotary type welding, preferably, the pushing guide slot has all been seted up to the chassis both sides, one side pushing guide slot internal fixation has the pushing guide arm, and the opposite side pushing guide slot internal fixation has the reciprocating screw rod, it has cup jointed the movable frame to move between guide arm and the reciprocating screw rod outer wall, move frame and pushing ring bottom fixed connection, just move threaded connection between frame and the reciprocating screw rod, chassis lateral wall fixedly connected with first motor, the output and the reciprocating screw rod tip fixed connection of first motor, pushing ring top fixedly connected with second motor, the output fixedly connected with initiative runner of second motor, the middle part ring body lateral wall fixedly connected with driven runner of pushing ring, pass through belt transmission connection between initiative runner and the driven runner.
Further, the pressure welding mechanism comprises a steering pulley block, the steering pulley block is fixedly connected with the outer wall of the positioning ring, two groups of electric push rods are fixedly connected with the positioning ring, the telescopic ends of the electric push rods are fixedly connected with pressure wheels, and the stirrups wound on the stirrup plates sequentially penetrate through the steering pulley block and the pressure wheels and are attached to the outer wall of the main steel bar, and the welding ends of the welding machine are attached to the outer wall of the stirrup.
In order to reduce welding fume harm, preferably, the clearance subassembly includes the dust absorption ring, dust absorption ring and spacing ring lateral wall fixed connection, dust absorption ring outer wall fixedly connected with supports the clamping ring, support and be fixed with the dust absorption pipe between clamping ring and the dust absorption ring, just the dust absorption pipe divide into three groups, the suction groove has been seted up in the dust absorption ring, three groups the dust absorption pipe all communicates with the suction groove, suction groove and suction ring inner chamber intercommunication, the rotation is connected with stirring vane in the suction ring, dust absorption ring outer wall fixedly connected with aspiration pump, the input and the suction ring inner chamber intercommunication of aspiration pump, just suction groove and aspiration pump's input divide to establish in stirring vane's both sides.
Further, the tip fixedly connected with collection box of stirring blade, the collecting vat has been seted up in the collection box, the entrance point internal diameter of collecting vat is less than the exit end internal diameter, sliding connection has the resistance board in the entrance point of collecting vat, the exit end fixedly connected with filter screen board of collecting vat, the equal fixedly connected with of filter screen board both sides spacing guide arm, the top of spacing guide arm all runs through the resistance board, just spacing guide arm outer wall has cup jointed first spring, the both ends of first spring respectively with resistance board, filter screen board fixed connection.
In order to improve welding quality, preferably, grinding machanism includes friction storehouse, friction storehouse and wear sleeve pipe top fixed connection, friction storehouse inner chamber and wear sleeve pipe intercommunication, the equal fixedly connected with drive storehouse in friction storehouse both sides, friction storehouse internal rotation is connected with the friction axle, friction axle outer wall fixedly connected with friction wheel, just the friction axle runs through and extends to in the both sides drive storehouse and rather than the lateral wall rotation is connected, is located in the drive storehouse friction axle outer wall fixedly connected with pneumatic impeller, the welding circle passes through air duct and drive storehouse inner chamber intercommunication, welding circle and second swivel inner chamber intercommunication, second swivel and spacing intra-annular chamber intercommunication, the output and the spacing intra-annular chamber intercommunication of aspiration pump.
Further, the two sides of the driving bin are communicated through an exhaust pipe, the middle part of the exhaust pipe is communicated with an air blowing pipe, and an extension line of the output end of the air blowing pipe is intersected with the central shaft of the sleeve.
In order to improve friction cleaning effect, preferably, fixedly connected with piston box on the retainer plate outer wall, sliding connection has the piston board in the piston box, fixedly connected with second spring between piston board top and the piston box, piston box lateral wall intercommunication has the gas tube, the gas cell has been seted up in the retainer plate, the other end and the gas cell intercommunication of gas tube, the gas cell intercommunication communicates with first inner chamber of turning round, first swivel and welding circle inner chamber intercommunication, turning pulley assembly pivot extends to in the piston box, just turning pulley assembly's pivot outer wall fixedly connected with first magnetic plate, magnetism is repelled between first magnetic plate and the piston board bottom.
Further, the pivot of turning to the assembly pulley is hollow setting, just the pivot inner chamber and the piston box inner chamber intercommunication of turning to the assembly pulley, the suction hole has all been seted up to the pivot outer wall both sides of turning to the assembly pulley, suction hole and turning to the pivot inner chamber intercommunication of assembly pulley, just the input extension radiation of suction hole is to the epaxial winding stirrup outer wall of stirrup dish, the piston plate both sides all communicate and are fixed with the breather pipe, be provided with the check valve in the breather pipe.
The welding method for bridge construction comprises the following steps:
Step one, splicing and fixing main steel bars, and attaching stirrups to the outer wall of a main steel frame;
step two, pushing the main reinforcing steel bars to advance and synchronously rotating the main reinforcing steel bars to finish rotary welding;
Step three, absorbing dust and fragments generated in the welding process;
and step four, friction cleaning is carried out on the welding surface of the main reinforcing steel bar and the stirrup.
Compared with the prior art, the invention provides a welding device and a welding method for bridge construction, which have the following beneficial effects:
1. This welding set is used in bridge construction, suction through the aspiration pump in the dust absorption intra-annular production, the smoke and dust and the piece that produce in the welding process inhale the dust absorption intra-annular, and utilize the air current promotion of drawing, make the stirring blade rotate and produce the water smoke membrane in the dust absorption intra-annular, with this handle smoke and piece, air quality in the welding area has been improved, the injury that welding gas caused the operating personnel has been reduced, and the setting of structure such as cooperation collecting vat, resistance board, realize the collection to granule and piece, effectively improved the neatness of solution, the water smoke of being convenient for is raised, also reduced the wearing and tearing of granule and piece to stirring blade outer wall, the durability has been improved.
2. This welding set is used in bridge construction is through the exhaust effect of aspiration pump output for the friction pulley rotates, with this clearance of rubbing to the welding face of main reinforcing bar, gets rid of spot and oxide layer on its welding face, has effectively improved subsequent welding quality, and follow-up gas will blow off to the welding face of the main reinforcing bar after the clearance of friction along blast pipe and gas-blowing pipe, with this piece that produces the friction clearance, has further improved welding quality.
3. This welding set is used in bridge construction makes the pressure wheel extrusion stirrup through electric putter for the stirrup closely laminates on main steelframe outer wall, has ensured welding stability, has improved the welding effect, and constantly passes the in-process that turns to the assembly pulley at the stirrup, realizes the friction clearance to the stirrup welding face, has further improved welding quality.
Drawings
Fig. 1 is a schematic diagram of a front view overall structure of a welding device for bridge construction according to the present invention;
fig. 2 is a schematic diagram of a side view overall structure of a welding device for bridge construction according to the present invention;
FIG. 3 is a schematic diagram of the whole cross-sectional side view of a welding device for bridge construction according to the present invention;
Fig. 4 is a schematic diagram of a cleaning assembly of a welding device for bridge construction according to the present invention;
FIG. 5 is a schematic diagram of a partial side view and half section of a welding device for bridge construction according to the present invention;
fig. 6 is an enlarged schematic view of a region a in fig. 5 of a welding device for bridge construction according to the present invention;
Fig. 7 is a schematic view of a stirring vane of a welding device for bridge construction according to the present invention;
Fig. 8 is a schematic diagram of the internal structure of a collecting box of the welding device for bridge construction;
FIG. 9 is a schematic view of a partial cross-sectional structure of a welding device for bridge construction according to the present invention;
Fig. 10 is an enlarged schematic view of a structure of a welding device for bridge construction in the area B in fig. 9 according to the present invention;
FIG. 11 is an enlarged schematic view of the structure of the area C in FIG. 9 of a welding device for bridge construction according to the present invention;
Fig. 12 is a schematic diagram of a pushing ring structure of a welding device for bridge construction.
In the figure: 1. a chassis; 2. a stirrup plate; 3. a welding machine; 4. a positioning ring; 41. welding rings; 411. a first swivel; 412. a second swivel; 42. a limiting ring; 43. positioning a guide rod; 44. a push ring; 441. a driven rotating wheel; 45. threading a sleeve; 46. abutting the sleeve; 47. an air charging tank; 5. a pressure welding mechanism; 51. a steering pulley block; 511. a first magnetic plate; 512. an air suction hole; 52. an electric push rod; 53. a pressure wheel; 6. cleaning the assembly; 61. a dust collection ring; 611. an air suction groove; 62. a pressing ring; 63. a dust collection pipe; 64. a stirring blade; 641. a collection box; 642. a collection tank; 643. a resistance plate; 644. a screen plate; 645. a limit guide rod; 646. a first spring; 65. an air extracting pump; 7. a polishing mechanism; 71. a friction bin; 72. a driving bin; 721. an exhaust pipe; 722. an air blowing pipe; 73. a friction shaft; 731. a friction wheel; 74. a pneumatic impeller; 75. an air duct; 8. pushing the guide groove; 81. pushing the guide rod; 82. a reciprocating screw rod; 83. a moving rack; 84. a first motor; 85. a second motor; 851. a driving rotating wheel; 9. a piston box; 91. a piston plate; 911. an air exchanging pipe; 92. a second spring; 93. and (5) an inflation tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Embodiment one:
Referring to fig. 1-12, a welding device for bridge construction comprises a bottom frame 1, a stirrup plate 2 wound with stirrups, and a welding machine 3, wherein the welding machine 3 adopts existing mature equipment, and the welding mode adopts resistance welding applying pressure, and the welding device also belongs to the existing mature technology; the chassis 1 top fixedly connected with retainer plate 4, welding machine 3 is fixed on the retainer plate 4 outer wall, retainer plate 4 inner wall rotates and is connected with first swivel 411, first swivel 411 inner wall fixedly connected with weld ring 41, weld ring 41 inner wall fixedly connected with second swivel 412, second swivel 412 inner wall rotates and is connected with spacing ring 42, first swivel 411 and second swivel 412 are hollow setting, spacing ring 42 lateral wall fixedly connected with location guide arm 43, location guide arm 43's the other end and chassis 1 top fixedly connected, utilize location guide arm 43's setting, realize the fixed to spacing ring 42, make it can not take place to rotate, ensure the smooth realization of follow-up effect, location guide arm 43 outer wall slip cup joints push ring 44, fixedly connected with wears sleeve pipe 45 on the weld ring 41, fixedly connected with supports sleeve pipe 46 on the push ring 44, wear sleeve pipe 45 and support sleeve pipe 46 and align each other and set up, and wear sleeve pipe 45 and support sleeve pipe 46 and interlude main reinforcing bar, still include: the pressure welding mechanism 5 is arranged on the positioning ring 4 and used for tightly attaching the stirrups to the outer wall of the main steel bar for welding; the cleaning component 6 is arranged on the limiting ring 42 and is used for cleaning smoke dust and welding scraps generated in the welding process; and the polishing mechanism 7 is arranged on the penetrating sleeve 45 and is used for polishing and cleaning the welding surface of the main reinforcing steel bar.
Through the arrangement of the structure, a plurality of main reinforcements needed for manufacturing the reinforcement cage are respectively penetrated from the penetrating sleeves 45 at different positions until the main reinforcements are abutted into the supporting sleeve 46, so that the main reinforcements are fixed, then hoops on the hooping plate 2 are pulled, and the hoops are bonded and fixed with the main reinforcements by matching with the pressure welding mechanism 5; and cooperation clearance subassembly 6 and grinding machanism 7 set up, can absorb the processing with the piece of smoke and dust that produce in the welding process, improved the environmental quality in the welding area to carry out the friction clearance to the welding face of main reinforcing bar and stirrup, improved welding quality.
Referring to fig. 1-3, wherein pushing guide slots 8 are respectively provided on both sides of the chassis 1, pushing guide rods 81 are fixedly connected in the pushing guide slots 8 on one side, reciprocating screw rods 82 are rotatably connected in the pushing guide slots 8 on the other side, moving frames 83 are sleeved between the pushing guide rods 81 and the outer walls of the reciprocating screw rods 82, the moving frames 83 are fixedly connected with the bottoms of the pushing rings 44, the moving frames 83 are in threaded connection with the reciprocating screw rods 82, the reciprocating screw rods 82 are used for pushing the moving frames 83 to slide along the pushing guide slots 8, a first motor 84 is fixedly connected with the side walls of the chassis 1, the output end of the first motor 84 is fixedly connected with the end part of the reciprocating screw rods 82, a second motor 85 is fixedly connected with the top of the pushing rings 44, a driving runner 851 is fixedly connected with the side walls of the middle ring bodies of the pushing rings 44, a driven runner 441 is connected with the driving runner 851 through a belt, by utilizing the transmission effect of the driving rotating wheel 851 and the driven rotating wheel 441, the moving pushing ring 44 synchronously rotates, the output ends of the first motor 84 and the second motor 85 are provided with speed reducers, so that the pushing ring 44 slowly moves and rotates, the follow-up rotary welding is convenient to realize, the pressure welding mechanism 5 comprises a steering pulley block 51, the steering pulley block 51 is fixedly connected with the outer wall of the positioning ring 4, two groups of electric push rods 52 are fixedly connected on the positioning ring 4, the telescopic ends of the electric push rods 52 are fixedly connected with pressure wheels 53, stirrups wound on the stirrup plate 2 sequentially penetrate through the steering pulley block 51 and the pressure wheels 53 and are attached to the outer wall of a main reinforcing steel bar, the welding end of the welding machine 3 is attached to the outer wall of the stirrup, the stirrup is tightly attached to the outer wall of the main reinforcing steel bar, the welding machine 3 is only required to be started, the welding between the stirrups and the main steel bars can be realized;
Through the arrangement of the structure, the two groups of electric push rods 52 work simultaneously, the pressure wheel 53 extrudes the stirrups, the other side of the main steel bars is in a joint state with the outer wall of the dust collection ring 61, so that the stirrups can be tightly jointed on the outer wall of the main steel frame under the pushing of the electric push rods 52, the subsequent welding effect is ensured, then the first motor 84 drives the reciprocating screw rod 82 to rotate slowly, so that the pushing ring 44 is pushed to slide along the pushing guide groove 8, a plurality of groups of main steel bars move towards the welding end of the welding machine 3 at the same time, the second motor 85 rotates, the driving function of the driving rotating wheel 851 and the driven rotating wheel 441 is matched, the pushing ring 44 is enabled to rotate slowly, the main steel bars are driven to rotate simultaneously, the main steel frame is enabled to rotate while advancing, the stirrups are wound on the outer wall of the main steel bars, and resistance welding is completed under the action of current and pressure each time when the contact end of the main steel frame and the stirrups rotate past the welding end of the welding machine 3, so that the welding efficiency of the winding cage of the main steel bars is improved in the whole welding process of the welding operation is achieved.
Referring to fig. 4, 5, 7 and 8, wherein the cleaning assembly 6 comprises a dust collection ring 61, the dust collection ring 61 is fixedly connected with the side wall of the limiting ring 42, the outer wall of the dust collection ring 61 is fixedly connected with a pressing ring 62, dust collection pipes 63 are fixed between the pressing ring 62 and the dust collection ring 61, the dust collection pipes 63 are divided into three groups, the three groups of dust collection pipes 63 are distributed at the welding end of the welding machine 3 at equal intervals, a suction groove 611 is formed in the dust collection ring 61, the three groups of dust collection pipes 63 are communicated with the suction groove 611, the suction groove 611 is communicated with the inner cavity of the dust collection ring 61, a stirring vane 64 is rotationally connected in the dust collection ring 61, the outer wall of the dust collection ring 61 is fixedly connected with a suction pump 65, the input end of the suction pump 65 is communicated with the inner cavity of the dust collection ring 61, a waterproof and breathable cotton net is arranged in the input end of the suction pump 65, so that water mist and smoke in the dust collection ring 61 are filtered, the water mist and the smoke are prevented from entering the suction pump 65, the protection effect on the air pump 65 is improved, the air suction groove 611 and the input end of the air pump 65 are respectively arranged at two sides of the stirring blade 64, alkaline solution (sodium hydroxide or the like) is filled in the dust collection ring 61, absorption and neutralization of smoke generated in the welding process can be realized, the liquid level is highest to the position of the rotating shaft of the stirring blade 64, the end part of the stirring blade 64 is fixedly connected with the collecting box 641, the collecting groove 642 is arranged in the collecting box 641, the inner diameter of the inlet end of the collecting groove 642 is smaller than the inner diameter of the outlet end, the resistance plate 643 is slidably connected in the inlet end of the collecting groove 642, the filter screen plate 644 is fixedly connected with the outlet end of the collecting groove 642, the limit guide rods 645 are fixedly connected at two sides of the filter screen plate 644, the top of the limit guide rod 645 penetrates through the resistance plate 643, the outer wall of the limit guide rod 645 is sleeved with the first spring 646, and two ends of the first spring 646 are respectively connected with the resistance plate 643, the filter screen plate 644 is fixedly connected, a liquid discharge pipe is arranged at the bottom of the dust collection ring 61, and an electromagnetic valve is arranged in the liquid discharge pipe, so that the liquid collection ring 61 can be discharged or replenished by opening the electromagnetic valve, and the use convenience is improved;
By the arrangement of the structure, the suction pump 65 is started, the suction effect is generated in the suction ring 61 at the input end of the suction pump 65, the suction effect is transmitted to the input end of the suction pipe 63 along the suction ring 61 and the suction groove 611, so that the suction effect is generated around the welding end of the welding machine 3, the smoke dust and the fragments generated in the welding process are sucked into the suction ring 61, when the air flow passes through the suction ring 61 and enters the suction pump 65, the stirring vane 64 in the suction ring 61 is pushed to rotate, the solution in the suction ring 61 is brought up under the action of rotation of the stirring vane 64, a layer of film is generated at the stirring vane 64, and when the smoke dust and the fragments pass through the layer of film, the solution is combined with the smoke dust particles and the fragments at first, so that the mass of the smoke dust particles and the fragments is increased, the dust particles and the fragments fall into the suction ring 61, and the acid gas generated by welding in the smoke dust are neutralized with the alkaline solution, so that the gas is absorbed and treated, the gas in the welding area is improved, the gas is reduced, and the safety of the welding personnel is improved;
And under the effect of liquid resistance and stirring vane 64 rotation centrifugal force, will make resistance 643 retract in to collecting vat 642 along spacing guide arm 645 for collecting vat 642's entrance point and exit point intercommunication, the solution will get into collecting vat 642 at this moment, and liquid part will pass filter screen 644 outflow, and granule and piece part will be filtered in collecting vat 642, after collecting box 641 surpasses the liquid level, under the resilience effect of first spring 646, resistance 643 will reset, thereby seal granule and piece in collecting vat 642, thereby realize collecting granule and piece, effectively improved the neatness of solution, be convenient for the lift up of water smoke, and also reduced the wearing and tearing of granule and piece and stirring vane 64 outer wall, the durability of stirring vane 64 has been improved.
Referring to fig. 5, 6, 9 and 11, the polishing mechanism 7 includes a friction bin 71, the friction bin 71 is fixedly connected with the top of the penetrating sleeve 45, the inner cavity of the friction bin 71 is communicated with the penetrating sleeve 45, two sides of the friction bin 71 are fixedly connected with a driving bin 72, a friction shaft 73 is rotatably connected with the friction bin 71, the outer wall of the friction shaft 73 is fixedly connected with a friction wheel 731, the friction shaft 73 penetrates through and extends into the driving bin 72 at two sides and is rotationally connected with the side wall of the driving bin 72, the outer wall of the friction shaft 73 positioned in the driving bin 72 is fixedly connected with a pneumatic impeller 74, a welding ring 41 is communicated with the inner cavity of the driving bin 72 through an air duct 75, the welding ring 41 is communicated with the inner cavity of the second rotating ring 412, the second rotating ring 412 is communicated with the inner cavity of the limiting ring 42, the output end of the air pump 65 is communicated with the inner cavity of the limiting ring 42, the middle part of the driving bin 72 is communicated with an air duct 722 through an air duct 721, and an extension line of the output end of the air duct 722 is intersected with the central shaft of the penetrating sleeve 45;
Through the arrangement of the structure, the air flow pumped by the air pump 65 from the dust suction ring 61 is discharged into the limiting ring 42 along the output end of the air flow, then flows through the second swivel 412, the welding ring 41 and the air duct 75 to enter the driving bin 72, and the air flow entering the driving bin 72 drives the pneumatic impeller 74 to rotate, so that the friction shaft 73 drives the friction wheel 731 to rotate, and the friction wheel 731 is attached to the welding surface of the main reinforcing steel bar, therefore, under the rotation action of the friction wheel 731, the welding surface of the main reinforcing steel bar is cleaned in a friction way, stains and oxide layers on the welding surface are removed, the subsequent welding quality is effectively improved, the air flow which drives the pneumatic impeller 74 to rotate is finally blown away along the exhaust pipe 721 and the air duct 722 to the welding surface of the main reinforcing steel bar after friction cleaning, and the welding quality is further improved.
Referring to fig. 4, 9 and 10, wherein a piston box 9 is fixedly connected to the outer wall of a positioning ring 4, a piston plate 91 is slidably connected between the piston box 9, a second spring 92 is fixedly connected between the top of the piston plate 91 and the inner cavity of the piston box 9, an air inflation pipe 93 is communicated with the side wall of the piston box 9, an air inflation groove 47 is formed in the positioning ring 4, the other end of the air inflation pipe 93 is communicated with the air inflation groove 47, the air inflation groove 47 is communicated with the inner cavity of a first rotating ring 411, the first rotating ring 411 is communicated with the inner cavity of a welding ring 41, a rotating shaft of a steering pulley block 51 extends into the piston box 9, the outer wall of the rotating shaft of the steering pulley block 51 is fixedly connected with a first magnetic plate 511, the rotating shaft of the steering pulley block 51 is arranged in a hollow mode, the inner cavity of the rotating shaft of the steering pulley block 51 is communicated with the inner cavity of the piston box 9, two sides of the rotating shaft of the steering pulley block 51 are respectively provided with an air suction hole 512, the input end of the air suction hole 512 extends to the outer wall of a hoop wound on a spoke plate 2, two sides of the piston plate 91 are respectively communicated with an air exchange tube 911, a rotating shaft 911 is also arranged in the rotating shaft of the steering pulley block 51 is provided with a one-way valve, and a one-way valve is arranged in the rotating shaft 911 is also arranged;
It should be noted that, the one-way valve in the ventilation tube 911 can only enable the gas in the bottom cavity of the piston box 9 to enter the top cavity of the piston box 9 through the ventilation tube 911; the one-way valve of the rotating shaft inner cavity of the steering pulley block 51 only can enable external airflow to be sucked into the piston box 9;
Through the arrangement of the structure, when the rotating shaft of the steering pulley block 51 rotates, the first magnetic plate 511 positioned in the piston box 9 is brought to rotate, when the first magnetic plate 511 and the piston plate 91 are in a magnetic contact area, the piston plate 91 is pushed to retract into the piston box 9 under the repulsive force of the two magnetic plates, so that gas in the piston box 9 is compressed, and the gas enters the welding ring 41 along the gas tube 93, the gas charging groove 47 and the first rotating ring 411, so that the flow rate of the gas entering the driving bin 72 from the gas tube 75 is increased, the friction wheel 731 is rotated more effectively, the friction cleaning effect is improved, and when the piston plate 91 moves upwards, suction force is generated in the bottom cavity of the piston box 9, external gas flows enter the piston box 9 along the rotating shaft inner cavity of the steering pulley block 51, the gas flow rate at the friction stirrup of the steering pulley block 51 is accelerated, the friction heat generating loss is reduced, and the durability of the steering pulley block 51 is improved.
Referring to fig. 2 and 12, the push ring 44 has a three-ring integrally fixed structure, and specifically includes an outer ring, a middle ring, and an inner ring, the outer ring being a portion in connection with the second motor 85 and the moving frame 83, the middle ring being a portion in connection with the abutment sleeve 46, and the inner ring being a portion in connection with the positioning guide 43 and the driven turning wheel 441.
Referring to fig. 1 to 12, in the present invention, when in use, a plurality of main reinforcements required for manufacturing a reinforcement cage are respectively penetrated from penetrating pipes 45 at different positions until the main reinforcements are abutted into the abutting pipe 46, then the stirrups on the stirrup plate 2 are pulled to pass through the steering pulley block 51, then the stirrups are pulled between two groups of pressure wheels 53 and the outer wall of the main reinforcements, then two groups of electric push rods 52 work simultaneously, so that the pressure wheels 53 squeeze the stirrups, and at the moment, the other side of the main reinforcements is in an abutting state with the outer wall of the dust collection ring 61, so that the stirrups can be tightly abutted on the outer wall of the main steel frame under the pushing of the electric push rods 52, the subsequent welding effect is ensured, then the stirrups in the abutting state are pulled to the welding end of the welding machine 3, at the moment, the welding machine 3 is started, the released current and the pressure of the pressure wheels 53 are acted (the existing resistance stirrups are not repeated), and the welding between the main reinforcements and the stirrups is completed; when the welding machine 3 is powered on and welded, the first motor 84 and the second motor 85 provided with the speed reducer are started, firstly, the first motor 84 drives the reciprocating screw rod 82 to rotate slowly, the movable frame 83 is pushed to slide along the pushing guide groove 8 by utilizing the threaded relation between the movable frame 83 and the reciprocating screw rod 82, so that a plurality of groups of main reinforcements simultaneously move towards the welding end of the welding machine 3, meanwhile, the second motor 85 rotates, and the driving rotating wheel 851 and the driven rotating wheel 441 are matched to drive the push ring 44 to rotate slowly, so that a plurality of main reinforcements are driven to rotate simultaneously, the main steel frame advances and rotates simultaneously, so that stirrups are wound on the outer wall of the main reinforcements, and resistance welding is completed under the action of current and pressure each time when the contact end of the main steel frame and the stirrups rotates to pass the welding end of the welding machine 3, so that the stirrups are wound in the advancing and rotating process, and the welding operation of an integral reinforcement cage is realized in the winding process, and the welding efficiency of the welding device is effectively improved;
When welding starts, the suction pump 65 is started, the input end of the suction pump 65 generates suction effect in the suction ring 61, the suction effect is transmitted to the input end of the suction pipe 63 along the suction ring 61 and the suction groove 611, so that suction effect is generated around the welding end of the welding machine 3, smoke dust and chips generated in the welding process are sucked into the suction ring 61, when air flow passes through the suction ring 61 and enters the suction pump 65, the stirring blades 64 in the suction ring 61 are pushed to rotate, under the action of rotation of the stirring blades 64, a layer of film is generated in the suction ring 61, when the smoke dust and chips pass through the layer of film, the solution is combined with smoke dust particles and chips at first, so that the mass of the smoke dust particles and chips is increased, and the acidic gas generated by welding in the smoke dust is neutralized with alkaline solution, so that the gas is absorbed, the air mass of the welding area is improved, the gas quality in the welding area is reduced, the safety of operators is improved; meanwhile, in the process that the stirring vane 64 rotates, the collecting box 641 at the end part of the collecting box is immersed in the liquid in the dust collection ring 61, at this time, under the action of liquid resistance and rotation centrifugal force of the stirring vane 64, the resistance plate 643 is retracted into the collecting tank 642 along the limit guide rod 645, so that the inlet end and the outlet end of the collecting tank 642 are communicated, at this time, the solution enters the collecting tank 642, the liquid part flows out through the filter screen plate 644, particles and fragments are filtered in the collecting tank 642, after the collecting box 641 passes out of the liquid surface, the resistance plate 643 is reset under the rebound action of the first spring 646, so that the particles and the fragments are sealed in the collecting tank 642, the collection of the particles and the fragments is realized, the cleanliness of the solution is effectively improved, the lifting of water mist is facilitated, the abrasion of the outer walls of the particles and the stirring vane 64 is also reduced, the situation that the particles and the fragments are blocked and worn by mistake entering subsequent parts is avoided, and the cleaning of the particles and the fragments can be conveniently cleaned by opening the ring 61 at the later stage, and the particles and the fragments can be cleaned up regularly; the air flow pumped by the air pump 65 from the dust suction ring 61 is discharged into the limiting ring 42 along the output end of the air flow, then flows through the second swivel 412, the welding ring 41 and the air duct 75 to enter the driving bin 72, and the air flow entering the driving bin 72 pushes the pneumatic impeller 74 to rotate, so that the friction shaft 73 drives the friction wheel 731 to rotate, and the friction wheel 731 is attached to the welding surface of the main reinforcing steel bar, therefore, under the rotation action of the friction wheel 731, the welding surface of the main reinforcing steel bar is cleaned in a friction way, stains and oxide layers on the welding surface are removed, the subsequent welding quality is effectively improved, the air flow pushing the pneumatic impeller 74 to rotate is finally blown away along the exhaust pipe 721 and the air duct 722 to the welding surface of the main reinforcing steel bar after friction cleaning, so that the fragments generated by friction are cleaned, and the welding quality is further improved; and when the stirrup continuously passes through the turning pulley block 51, the friction effect is utilized, the welding surface of the stirrup is cleaned by friction, the welding quality is improved again, the rotating shaft of the turning pulley block 51 rotates, the first magnetic plate 511 positioned in the piston box 9 is brought into rotation, when the first magnetic plate 511 and the piston plate 91 are in a magnetic contact area, the piston plate 91 is pushed to retract into the piston box 9 under the repulsive effect of the two magnetic plates, so that the gas in the piston box 9 is compressed, the part of the gas enters the welding ring 41 along the gas tube 93, the gas tube 47 and the first rotating ring 411, the gas flow rate entering the driving bin 72 from the gas guide tube 75 is increased, the friction wheel 731 rotates more effectively, the friction cleaning effect is improved, and when the piston plate 91 moves upwards, the suction force is generated in the bottom cavity of the piston box 9, the external air flow enters the piston box 9 along the rotating shaft of the air suction hole 512, the inner cavity of the turning pulley block 51 is accelerated, the gas in the piston box 9 is compressed, the part of the gas is enabled to enter the welding ring 41 along the gas tube 93, the gas tube 47 and the gas tube 47 is increased, the gas flow rate entering the driving bin 72 from the gas tube 75 is increased, the friction wheel 731 is rotated effectively, the friction wheel 731 is increased, the friction cleaning effect is improved, the effect is improved, and the piston box 9 is opened, and the heat loss is ensured.
Embodiment two:
basically the same as the first embodiment, on the basis of the first embodiment, a welding method for bridge construction is provided;
referring to fig. 1 to 12, a welding method for bridge construction comprises the following steps:
Step one, splicing and fixing main steel bars, and attaching stirrups to the outer wall of a main steel frame;
Penetrating a plurality of main reinforcements needed for manufacturing the reinforcement cage from penetrating sleeves 45 at different positions respectively until the main reinforcements are abutted into abutting sleeves 46, then pulling stirrups on a stirrup plate 2 to penetrate into a steering pulley block 51, then pulling the stirrups to a position between two groups of pressure wheels 53 and the outer wall of the main reinforcements, then enabling two groups of electric push rods 52 to work simultaneously, enabling the pressure wheels 53 to squeeze the stirrups, and enabling the other side of the main reinforcements to be in a joint state with the outer wall of a dust collection ring 61 at the moment, so that the stirrups can be tightly jointed on the outer wall of the main steel frame under the pushing of the electric push rods 52, the subsequent welding effect is ensured, then pulling the stirrups in the joint state to the welding end of a welding machine 3, and starting the welding machine 3 at the moment under the current released by the welding machine and the pressure of the pressure wheels 53 (the existing resistance welding principle, which is not repeated in detail) to finish welding between the main reinforcements and the stirrups;
step two, pushing the main reinforcing steel bars to advance and synchronously rotating the main reinforcing steel bars to finish rotary welding;
When the welding machine 3 is powered on and welded, the first motor 84 and the second motor 85 provided with the speed reducer are started, firstly, the first motor 84 drives the reciprocating screw rod 82 to rotate slowly, the movable frame 83 is pushed to slide along the pushing guide groove 8 by utilizing the threaded relation between the movable frame 83 and the reciprocating screw rod 82, so that a plurality of groups of main reinforcements simultaneously move towards the welding end of the welding machine 3, meanwhile, the second motor 85 rotates, and the driving rotating wheel 851 and the driven rotating wheel 441 are matched to drive the push ring 44 to rotate slowly, so that a plurality of main reinforcements are driven to rotate simultaneously, the main steel frame advances and rotates simultaneously, so that stirrups are wound on the outer wall of the main reinforcements, and resistance welding is completed under the action of current and pressure each time when the contact end of the main steel frame and the stirrups rotates to pass the welding end of the welding machine 3, so that the stirrups are wound in the advancing and rotating process, and the welding operation of an integral reinforcement cage is realized in the winding process, and the welding efficiency of the welding device is effectively improved;
Step three, absorbing dust and fragments generated in the welding process;
When welding starts, the suction pump 65 is started, the input end of the suction pump 65 generates suction effect in the suction ring 61, the suction effect is transmitted to the input end of the suction pipe 63 along the suction ring 61 and the suction groove 611, so that suction effect is generated around the welding end of the welding machine 3, smoke dust and chips generated in the welding process are sucked into the suction ring 61, when air flow passes through the suction ring 61 and enters the suction pump 65, the stirring blades 64 in the suction ring 61 are pushed to rotate, under the action of rotation of the stirring blades 64, a layer of film is generated in the suction ring 61, when the smoke dust and chips pass through the layer of film, the solution is combined with smoke dust particles and chips at first, so that the mass of the smoke dust particles and chips is increased, and the acidic gas generated by welding in the smoke dust is neutralized with alkaline solution, so that the gas is absorbed, the air mass of the welding area is improved, the gas quality in the welding area is reduced, the safety of operators is improved; meanwhile, in the process that the stirring vane 64 rotates, the collecting box 641 at the end part of the collecting box is immersed in the liquid in the dust collection ring 61, at this time, under the action of liquid resistance and rotation centrifugal force of the stirring vane 64, the resistance plate 643 is retracted into the collecting tank 642 along the limit guide rod 645, so that the inlet end and the outlet end of the collecting tank 642 are communicated, at this time, the solution enters the collecting tank 642, the liquid part flows out through the filter screen plate 644, particles and fragments are filtered in the collecting tank 642, after the collecting box 641 passes out of the liquid surface, the resistance plate 643 is reset under the rebound action of the first spring 646, so that the particles and the fragments are sealed in the collecting tank 642, the collection of the particles and the fragments is realized, the cleanliness of the solution is effectively improved, the lifting of water mist is facilitated, the abrasion of the outer walls of the particles and the stirring vane 64 is also reduced, the situation that the particles and the fragments are blocked and worn by mistake entering subsequent parts is avoided, and the cleaning of the particles and the fragments can be conveniently cleaned by opening the ring 61 at the later stage, and the particles and the fragments can be cleaned up regularly;
Step four, friction cleaning is carried out on the welding surface of the main steel bar and the stirrup;
The air flow pumped by the air pump 65 from the dust suction ring 61 is discharged into the limiting ring 42 along the output end of the air flow, then flows through the second swivel 412, the welding ring 41 and the air duct 75 to enter the driving bin 72, and the air flow entering the driving bin 72 pushes the pneumatic impeller 74 to rotate, so that the friction shaft 73 drives the friction wheel 731 to rotate, and the friction wheel 731 is attached to the welding surface of the main reinforcing steel bar, therefore, under the rotation action of the friction wheel 731, the welding surface of the main reinforcing steel bar is cleaned in a friction way, stains and oxide layers on the welding surface are removed, the subsequent welding quality is effectively improved, the air flow pushing the pneumatic impeller 74 to rotate is finally blown away along the exhaust pipe 721 and the air duct 722 to the welding surface of the main reinforcing steel bar after friction cleaning, so that the fragments generated by friction are cleaned, and the welding quality is further improved; and when the stirrup continuously passes through the turning pulley block 51, the friction effect is utilized, the welding surface of the stirrup is cleaned by friction, the welding quality is improved again, the rotating shaft of the turning pulley block 51 rotates, the first magnetic plate 511 positioned in the piston box 9 is brought into rotation, when the first magnetic plate 511 and the piston plate 91 are in a magnetic contact area, the piston plate 91 is pushed to retract into the piston box 9 under the repulsive effect of the two magnetic plates, so that the gas in the piston box 9 is compressed, the part of the gas enters the welding ring 41 along the gas tube 93, the gas tube 47 and the first rotating ring 411, the gas flow rate entering the driving bin 72 from the gas guide tube 75 is increased, the friction wheel 731 rotates more effectively, the friction cleaning effect is improved, and when the piston plate 91 moves upwards, the suction force is generated in the bottom cavity of the piston box 9, the external air flow enters the piston box 9 along the rotating shaft of the air suction hole 512, the inner cavity of the turning pulley block 51 is accelerated, the gas in the piston box 9 is compressed, the part of the gas is enabled to enter the welding ring 41 along the gas tube 93, the gas tube 47 and the gas tube 47 is increased, the gas flow rate entering the driving bin 72 from the gas tube 75 is increased, the friction wheel 731 is rotated effectively, the friction wheel 731 is increased, the friction cleaning effect is improved, the effect is improved, and the piston box 9 is opened, and the heat loss is ensured.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a welding set is used in bridge construction, includes chassis (1), winding have stirrup dish (2) and welding machine (3) of stirrup, a serial communication port, chassis (1) top fixedly connected with retainer plate (4), welding machine (3) are fixed on retainer plate (4) outer wall, retainer plate (4) inner wall rotates and is connected with first swivel (411), first swivel (411) inner wall fixedly connected with weld ring (41), weld ring (41) inner wall fixedly connected with second swivel (412), second swivel (412) inner wall rotation is connected with spacing ring (42), spacing ring (42) lateral wall fixedly connected with location guide arm (43), the other end and chassis (1) top fixedly connected with of location guide arm (43), location guide arm (43) outer wall slip cup joint push away sleeve (44), fixedly connected with on push away sleeve (44), it supports sleeve (46) to wear sleeve (45) and set up with the sleeve pipe (45) and support sleeve pipe (46) each other, and support sleeve pipe (46) and include that sleeve pipe (45) are mutually aligned, still include that sleeve pipe (46) are held in:
the pressure welding mechanism (5) is arranged on the positioning ring (4) and used for tightly attaching stirrups to the outer wall of the main steel bar for welding;
the cleaning assembly (6) is arranged on the limiting ring (42) and is used for cleaning smoke dust and welding scraps generated in the welding process;
and the polishing mechanism (7) is arranged on the penetrating sleeve (45) and is used for polishing and cleaning the welding surface of the main reinforcing steel bar.
2. The welding device for bridge construction according to claim 1, wherein pushing guide grooves (8) are formed in two sides of the bottom frame (1), pushing guide rods (81) are fixedly connected in the pushing guide grooves (8) on one side, reciprocating screw rods (82) are rotationally connected in the pushing guide grooves (8) on the other side, moving frames (83) are sleeved between the pushing guide rods (81) and the outer walls of the reciprocating screw rods (82), the moving frames (83) are fixedly connected with the bottoms of pushing rings (44), the moving frames (83) are in threaded connection with the reciprocating screw rods (82), first motors (84) are fixedly connected with the side walls of the bottom frame (1), output ends of the first motors (84) are fixedly connected with the end portions of the reciprocating screw rods (82), second motors (85) are fixedly connected with the output ends of the pushing rings (44), driven rotating wheels (851) are fixedly connected with the side walls of the middle ring bodies of the pushing rings (44), and driving rotating wheels (851) are connected with driven rotating wheels (441) through driving belts and driven rotating wheels (441).
3. The welding device for bridge construction according to claim 1, wherein the pressure welding mechanism (5) comprises a steering pulley block (51), the steering pulley block (51) is fixedly connected with the outer wall of the positioning ring (4), two groups of electric push rods (52) are fixedly connected to the positioning ring (4), pressure wheels (53) are fixedly connected to the telescopic ends of the electric push rods (52), and wound stirrups on the stirrup disc (2) sequentially penetrate through the steering pulley block (51) and the pressure wheels (53) and are attached to the outer wall of a main reinforcement, and the welding ends of the welding machine (3) are attached to the outer wall of the stirrups.
4. A welding device for bridge construction according to claim 3, characterized in that the cleaning assembly (6) comprises a dust collection ring (61), the dust collection ring (61) is fixedly connected with the side wall of the limiting ring (42), the outer wall of the dust collection ring (61) is fixedly connected with a pressing ring (62), a dust collection pipe (63) is fixed between the pressing ring (62) and the dust collection ring (61), the dust collection pipe (63) is divided into three groups, the dust collection ring (61) is internally provided with a suction groove (611), the three groups of the dust collection pipes (63) are all communicated with the suction groove (611), the suction groove (611) is communicated with the inner cavity of the dust collection ring (61), stirring blades (64) are rotationally connected to the dust collection ring (61), the outer wall of the dust collection ring (61) is fixedly connected with a suction pump (65), the input end of the suction pump (65) is communicated with the inner cavity of the dust collection ring (61), and the input ends of the suction groove (611) and the suction pump (65) are respectively arranged at two sides of the stirring blades (64).
5. The welding device for bridge construction according to claim 4, wherein the end portion of the stirring blade (64) is fixedly connected with a collecting box (641), a collecting groove (642) is formed in the collecting box (641), the inner diameter of the inlet end of the collecting groove (642) is smaller than the inner diameter of the outlet end, a resistance plate (643) is slidably connected in the inlet end of the collecting groove (642), a filter screen plate (644) is fixedly connected to the outlet end of the collecting groove (642), limit guide rods (645) are fixedly connected to two sides of the filter screen plate (644), the top portions of the limit guide rods (645) penetrate through the resistance plate (643), a first spring (646) is sleeved on the outer wall of the limit guide rods (645), and two ends of the first spring (646) are fixedly connected with the resistance plate (643) and the filter screen plate (644) respectively.
6. The welding device for bridge construction according to claim 4, wherein the polishing mechanism (7) comprises a friction bin (71), the friction bin (71) is fixedly connected with the top of the penetrating sleeve (45), the inner cavity of the friction bin (71) is communicated with the inner cavity of the penetrating sleeve (45), the driving bins (72) are fixedly connected to two sides of the friction bin (71), the friction shaft (73) is rotationally connected to the inner cavity of the friction bin (71), the friction wheel (731) is fixedly connected to the outer wall of the friction shaft (73), the friction shaft (73) penetrates through the driving bins (72) at two sides and is rotationally connected with the side wall of the driving bins, the outer wall of the friction shaft (73) is fixedly connected with the pneumatic impeller (74) at the inner cavity of the driving bins (72), the welding ring (41) is communicated with the inner cavity of the driving bins (72) through the air duct (75), the welding ring (41) is communicated with the inner cavity of the second rotating ring (412), the second rotating ring (412) is communicated with the inner cavity of the limiting ring (42), and the output end of the air pump (65) is communicated with the inner cavity of the limiting ring (42).
7. The welding device for bridge construction according to claim 6, wherein the driving bins (72) on two sides are communicated through an exhaust pipe (721), an air blowing pipe (722) is communicated in the middle of the exhaust pipe (721), and an extension line of the output end of the air blowing pipe (722) is intersected with the central shaft of the penetrating sleeve (45).
8. The welding device for bridge construction according to claim 6, wherein the piston box (9) is fixedly connected to the outer wall of the positioning ring (4), the piston plate (91) is slidably connected to the piston box (9), a second spring (92) is fixedly connected between the top of the piston plate (91) and the piston box (9), an inflation tube (93) is communicated to the side wall of the piston box (9), an inflation groove (47) is formed in the positioning ring (4), the other end of the inflation tube (93) is communicated with the inflation groove (47), the inflation groove (47) is communicated with the inner cavity of the first rotating ring (411), the first rotating ring (411) is communicated with the inner cavity of the welding ring (41), the rotating shaft of the steering pulley block (51) extends into the piston box (9), a first magnetic plate (511) is fixedly connected to the outer wall of the rotating shaft of the steering pulley block (51), and magnetic repulsion is generated between the first magnetic plate (511) and the bottom of the piston plate (91).
9. The welding device for bridge construction according to claim 8, wherein the rotating shaft of the steering pulley block (51) is hollow, the rotating shaft inner cavity of the steering pulley block (51) is communicated with the inner cavity of the piston box (9), the two sides of the outer wall of the rotating shaft of the steering pulley block (51) are provided with air suction holes (512), the air suction holes (512) are communicated with the inner cavity of the rotating shaft of the steering pulley block (51), the input ends of the air suction holes (512) extend and radiate to the outer wall of the stirrup wound on the stirrup plate (2), the two sides of the piston plate (91) are communicated and fixed with air exchanging pipes (911), and one-way valves are arranged in the air exchanging pipes (911).
10. A welding method for bridge construction, using the welding device for bridge construction according to any one of claims 1 to 9, characterized by comprising the steps of:
Step one, splicing and fixing main steel bars, and attaching stirrups to the outer wall of a main steel frame;
step two, pushing the main reinforcing steel bars to advance and synchronously rotating the main reinforcing steel bars to finish rotary welding;
Step three, absorbing dust and fragments generated in the welding process;
and step four, friction cleaning is carried out on the welding surface of the main reinforcing steel bar and the stirrup.
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