CN116852014B - Bidirectional welding device for U-shaped rib of top plate of steel box girder - Google Patents
Bidirectional welding device for U-shaped rib of top plate of steel box girder Download PDFInfo
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- CN116852014B CN116852014B CN202311058393.7A CN202311058393A CN116852014B CN 116852014 B CN116852014 B CN 116852014B CN 202311058393 A CN202311058393 A CN 202311058393A CN 116852014 B CN116852014 B CN 116852014B
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- 238000003466 welding Methods 0.000 title claims abstract description 154
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 29
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000012634 fragment Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000013013 elastic material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a bidirectional welding device for a U-shaped rib of a top plate of a steel box girder, which comprises the following components: the welding platform is used for supporting the top plate of the steel box girder and the U-shaped rib; the sliding table is connected to two sides of the welding platform and used for moving the portal frame; the two welding guns are connected below the portal frame and are arranged at two sides of the U-shaped rib; the local positioning unit is connected below the portal frame and used for clamping and positioning the welding position of the U-shaped rib, and the clamping angle is adjustable. According to the invention, the two sides of the U-shaped rib are continuously welded in a bidirectional manner, so that the stress balance of the two sides of the U-shaped rib in the welding process is improved, the problem that the U-shaped rib is bent and deformed to one side in the single-side welding process is solved, and the welding position is locally clamped and positioned at the welding position, so that the welding position and the U-shaped rib are integrally fixed relatively, the local deformation at the welding position is reduced, the mechanical property of the top plate of the steel box girder is improved, and the welding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of steel box girder welding, in particular to a bidirectional welding device for a U-shaped rib of a top plate of a steel box girder.
Background
When the steel box girder is manufactured, each section is divided into a plurality of plate units for prefabrication, and the steel box girder is welded with stiffening ribs on the bottom plate for ensuring the use strength and the use stability of the bottom plate. The existing steel box girder bottom plate often adopts unilateral manual welding mode when welding with the U type rib, and the second side is in the free state when the first side of U type rib welds, and the first side of U type rib is in the fixed state when the second side welds, and this kind of inconsistent welding state will lead to producing welding stress deformation, influences the intensity of steel box girder bottom plate, and in addition because manual welding's operation deviation also can lead to the deformation of U type rib, consequently need weld U type rib both sides simultaneously.
Among the prior art, as in the chinese patent of application number 202220732633.1, a steel case girder bottom plate stiffening rib welding set is disclosed, including portal frame, bearing structure and welded structure, welded structure with portal frame sliding connection, bearing structure support connection bottom plate, bearing structure are used for supporting and lifting the bottom plate, welded structure includes the welded part, the welded part be used for to the bottom plate after the lifting with the two-sided welding of stiffening rib. The device can realize the simultaneous welding of two sides of two stiffening ribs, effectively ensures the welding effect of the stiffening ribs, and ensures the use strength of the bottom plate and the steel box girder. However, during the welding process, the U-shaped ribs are clamped at the two ends, and the welding position is in a free state, so that the welding position is still likely to be deformed locally.
Therefore, there is a need for a bi-directional welding device for U-ribs of a steel box girder top plate that at least partially solves the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a bidirectional welding device for a U-shaped rib of a top plate of a steel box girder, comprising:
the welding platform is used for supporting the top plate of the steel box girder and the U-shaped rib;
the sliding table is connected to two sides of the welding platform and used for moving the portal frame;
the two welding guns are connected below the portal frame and are arranged at two sides of the U-shaped rib;
the local positioning unit is connected below the portal frame and used for clamping and positioning the welding position of the U-shaped rib, and the clamping angle is adjustable.
Preferably, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises: and the clamping units are connected to two ends of the welding platform and used for clamping and fixing the U-shaped ribs at preset positions on the top plate of the steel box girder.
Preferably, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises: and the welding gun adjusting unit is connected between the portal frame and the welding guns and used for synchronously adjusting the distance between the welding positions of the two welding guns and the U-shaped rib.
Preferably, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises:
the support plate is connected to the bottom end of the portal frame in a sliding manner;
the hydraulic cylinder is connected to the center of the supporting plate, the output end of the hydraulic cylinder is vertically connected with a hydraulic rod, the side end of the hydraulic rod is connected with the welding gun adjusting unit, the bottom end of the hydraulic rod is connected with the local positioning unit, and the hydraulic cylinder drives the welding gun adjusting unit and the local positioning unit to synchronously act.
Preferably, the welding gun adjusting unit includes:
the two rotating rods are symmetrically hinged to two sides of the hydraulic rod, the rotating rods are obliquely arranged and are lowered in height from the hydraulic rod to two sides, and clamping teeth are arranged at the bottom end of each rotating rod;
the gear is rotationally connected to the supporting plate and is meshed with the bottom end of the rotating rod;
the rack is arranged on the supporting plate in a sliding manner and is meshed with the bottom end of the gear, the welding gun is obliquely connected to the rack, and the welding end of the welding gun is close to the U-shaped rib.
Preferably, the rotary drum is hinged to the support plate, one end of the rotary rod, far away from the hydraulic rod, extends into the rotary drum and is in sliding connection with the inner wall of the rotary drum, the two guide blocks are horizontally arranged along the support plate, and the rack is in sliding connection with the guide blocks.
Preferably, the local positioning unit includes: connect in the first splint, second splint and the regulation frame of hydraulic stem bottom, first splint level sets up, two the second splint arrange in first splint both sides form the clamping face with U type rib adaptation, be equipped with the gap between first splint and the second splint, the regulation frame output is connected with the second splint for adjust the contained angle of second splint and first splint.
Preferably, the adjusting frame includes:
the horizontal sliding rail is connected to the bottom end of the adjusting frame and is arranged at the bottom opening, and the horizontal sliding rail extends along the width direction of the U-shaped rib;
the sliding block is connected to the horizontal sliding rail in a sliding manner;
the vertical rod is connected to the bottom end of the sliding block and penetrates through the adjusting frame, a lug is arranged at the side end of the second clamping plate, and the lug is hinged to the bottom end of the vertical rod;
the first motor is connected to the outer side of the vertical rod, and the output shaft of the first motor is connected with the lug.
Preferably, the adjusting frame further includes:
the middle part of the crank is hinged to the inner side of the horizontal sliding rail and is close to the hydraulic rod, and a slot for the crank to move is formed in the adjusting frame;
the two ends of the connecting rod are respectively hinged with the end part of the crank and the sliding block, and the length of the connecting rod is longer than that of the crank;
the second motor is connected to the outer side of the horizontal sliding rail, and an output shaft of the second motor is connected with the middle part of the crank.
Preferably, the side of the bottom surface of the first clamping plate and the side of the second clamping plate, which are close to the U-shaped rib, are respectively provided with a pressure detection surface, a plurality of pressure detection points are arranged on the pressure detection surfaces, and pressure sensors are adopted at the pressure detection points to detect the pressure applied to the clamping of the first clamping plate and the second clamping plate on the U-shaped rib.
Preferably, the support plate is further provided with: the device comprises a first position detection unit and a second position detection unit, wherein the first position detection unit is used for detecting positions of two vertexes of a U-shaped rib to be welded, the second position detection unit is used for detecting positions of two bottoms of the U-shaped rib to be welded, and the controller is used for calculating to obtain an inclination angle of the side face of the U-shaped rib according to detected position data, determining edges of the side face of the U-shaped rib and controlling the action of the local positioning unit.
Preferably, the local positioning unit further comprises: the splint locking element, splint locking element connect in the montant to set up in the lug articulated shaft outside with one heart, splint locking element includes:
the first ring body is connected to the outer side of the lug hinge shaft in a sliding manner;
the third ring body is connected to the bottom end of the vertical rod and is arranged concentrically with the first ring body;
the second ring body is fixedly connected between the first ring body and the third ring body, and is made of elastic materials;
the four grooves are uniformly connected in the first ring body, and gaps exist between the grooves and the lug hinge shafts;
the conical groove is formed in the outer side end of the second ring body, a first elastic piece is clamped in the conical groove, a gap is formed between the first elastic piece and the conical groove, the outer side end of the first elastic piece is in abutting connection with the third ring body, and the four first elastic pieces correspond to the four groove positions respectively;
the second shell fragment, second shell fragment are connected in the second ring body, second shell fragment one end and first shell fragment lateral wall fixed connection, second shell fragment other end and first ring body sliding connection, and two second shell fragments symmetry are arranged in the recess both sides, and the second shell fragment adopts memory alloy material to make, and the second shell fragment is connected with heating device, has the trend from bending state to straighten after the intensification.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the bidirectional welding device for the U-shaped rib of the steel box girder top plate, two welding guns are respectively arranged on two sides of the U-shaped rib, and the two sides of the U-shaped rib are continuously welded bidirectionally along with the movement of the portal frame, so that the stress balance of the two sides of the U-shaped rib in the welding process is improved, the problem that the U-shaped rib is bent and deformed to one side in single-side welding is solved, and the U-shaped rib is locally clamped and positioned at a welding position, so that the welding position and the U-shaped rib are integrally fixed relatively, the local deformation at the welding position is reduced, the mechanical property of the steel box girder top plate is improved, and the welding efficiency is improved.
Other advantages, objects and features of the present invention will be in part apparent to those skilled in the art from consideration of the specification and practice of the invention as set forth in the appended claims.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic structural view of a two-way welding device for U-shaped ribs of a top plate of a steel box girder;
FIG. 2 is a schematic diagram of the internal structure of a support plate of a bidirectional welding device for U-shaped ribs of a top plate of a steel box girder;
FIG. 3 is a schematic view of a partial structure of a partial positioning unit in a two-way welding device for U-shaped ribs of a top plate of a steel box girder;
FIG. 4 is a schematic structural view of an adjusting frame in a two-way welding device for U-shaped ribs of a top plate of a steel box girder;
FIG. 5 is a schematic structural view of a second clamping plate in the two-way welding device for the U-shaped rib of the top plate of the steel box girder;
fig. 6 is a schematic cross-sectional view of a clamping plate locking unit in a two-way welding device for a U-shaped rib of a top plate of a steel box girder according to the present invention.
In the figure: 1. a welding platform; 2. a steel box girder top plate; 3.U ribs; 4. a sliding table; 5. a portal frame; 6. a welding gun; 7. a hydraulic cylinder; 8. a hydraulic rod; 12. a support plate; 11. a rotating rod; 13. a gear; 14. a rack; 15. a rotating drum; 16. a guide block; 17. a first clamping plate; 18. a second clamping plate; 19. an adjusting frame; 21. a horizontal slide rail; 22. a slide block; 23. a vertical rod; 24. a lug; 25. a first motor; 26. a crank; 27. a connecting rod; 28. a second motor; 29. a pressure detection surface; 30. a lug hinge shaft; 31. a first ring body; 32. a second ring body; 33. a third ring body; 34. a groove; 35. a conical groove; 36. a first elastic sheet; 38. and a second elastic sheet.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Examples:
as shown in fig. 1-2, the present invention provides a bidirectional welding device for U-shaped ribs of a top plate of a steel box girder, comprising:
the welding platform 1 is used for supporting the steel box girder top plate 2 and the U-shaped ribs 3;
the sliding table 4 is connected to two sides of the welding platform 1 and used for moving the portal frame 5;
the welding guns 6, two welding guns 6 are connected below the portal frame 5 and are arranged on two sides of the U-shaped rib 3;
the local positioning unit is connected to the lower part of the portal frame 5 and used for clamping and positioning the welding position of the U-shaped rib 3, and the clamping angle is adjustable.
The working principle and the beneficial effects of the technical scheme are as follows:
when the bidirectional welding device for the U-shaped ribs of the steel box girder top plate is used, the steel box girder top plate 2 to be welded is clamped on the welding platform 1, the U-shaped ribs 3 are clamped at the preset position of the steel box girder top plate 2, the sliding table 4 is started to move the portal frame 5 to the preset welding starting point, two welding guns 6 are positioned on two sides of the U-shaped ribs 3, then the local positioning unit is started to clamp the U-shaped ribs 3 at the positions where the welding guns 6 correspond to the welding positions, two welding guns 6 are started to weld the two sides of the U-shaped ribs 3 in a bidirectional mode, the sliding table 4 is started to move horizontally along the length direction of the steel box girder top plate 2 in a welding mode, the welding guns 6 and the local positioning unit are driven to feed horizontally along the extending direction of the U-shaped ribs 3, and the U-shaped ribs 3 are welded continuously.
The invention provides a bidirectional welding device for a U-shaped rib of a steel box girder top plate, which adopts two welding guns 6 to be respectively arranged at two sides of the U-shaped rib 3, and carries out bidirectional continuous welding on the two sides of the U-shaped rib 3 along with the movement of a portal frame 5, so that the stress balance of the two sides of the U-shaped rib 3 in the welding process is improved, the problem that the U-shaped rib 3 is bent and deformed to one side in the single-side welding process is solved, and the welding position is locally clamped and positioned at the welding position, so that the welding position and the U-shaped rib 3 are integrally fixed relatively, the local deformation at the welding position is reduced, the mechanical property of the steel box girder top plate 2 is improved, and the welding efficiency is improved.
In one embodiment, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises: and the clamping units are connected to two ends of the welding platform 1 and are used for clamping and fixing the U-shaped ribs 3 at preset positions on the steel box girder top plate 2, so that the U-shaped ribs 3 are not shifted during welding.
As shown in fig. 1-2, in one embodiment, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises: and the welding gun adjusting unit is connected between the portal frame 5 and the welding guns 6 and is used for synchronously adjusting the distance between the welding positions of the two welding guns 6 and the U-shaped rib 3.
The working principle and the beneficial effects of the technical scheme are as follows:
before the U-shaped rib 3 is welded, a welding gun adjusting unit is adopted to separate a welding gun 6 from the U-shaped rib 3, so that collision during installation of the U-shaped rib 3 is avoided, and interference in the operation process is reduced; when the U-shaped rib 3 is welded, the welding end of the welding gun 6 is close to the bottom end of the U-shaped rib 3 by adopting the welding gun adjusting unit, so that the welding gun 6 can be effectively welded during welding.
As shown in fig. 1-2, in one embodiment, the bidirectional welding device for the U-shaped rib of the top plate of the steel box girder further comprises:
the support plate 12 is slidably connected to the bottom end of the portal frame 5;
the hydraulic cylinder 7, the hydraulic cylinder 7 is connected in backup pad 12 centers, the vertical hydraulic rod 8 that is connected with of hydraulic cylinder 7 output, 8 side ends of hydraulic rod are connected with welder adjusting unit, 8 bottom of hydraulic rod are connected with local positioning unit, hydraulic cylinder 7 drives welder adjusting unit and local positioning unit synchronization action.
The hydraulic cylinder 7 is used for driving the hydraulic rod 8 to move along the vertical direction, and the hydraulic cylinder 7 drives the welding gun adjusting unit and the local positioning unit to synchronously act when moving, namely, the position adjustment of the welding gun and the positioning and clamping action of the U-shaped rib 3 are synchronously completed, the adjusting link time is shortened, and the efficiency is higher. The backup pad 12 is used for supporting pneumatic cylinder 7, and backup pad 12 is connected on the horizontal slip table of portal frame 5, can follow the horizontal direction and remove, adjusts the position of pneumatic cylinder 7 and makes it just right with U type rib 3.
As shown in fig. 1-2, in one embodiment, the welding gun adjusting unit includes:
the two rotating rods 11 are symmetrically hinged to two sides of the hydraulic rod 8, the rotating rods 11 are obliquely arranged and are lowered in height from the hydraulic rod 8 to two sides, and clamping teeth are arranged at the bottom end of the rotating rods 11;
the gear 13 is rotatably connected to the supporting plate 12 and is meshed with the bottom end of the rotating rod 11;
the rack 14 is arranged on the supporting plate 12 in a sliding manner and is in meshed connection with the bottom end of the gear 13, the welding gun 6 is obliquely connected to the rack 14, and the welding end of the welding gun 6 is close to the U-shaped rib 3.
The rotary rod 11 is connected with the rotary cylinder 15 and the guide blocks 16 on the support plate 12, the rotary cylinder 15 is hinged on the support plate 12, one end of the rotary rod 11 far away from the hydraulic rod 8 extends into the rotary cylinder 15 and is in sliding connection with the inner wall of the rotary rod, the two guide blocks 16 are horizontally arranged along the support plate 12, and the rack 14 is in sliding connection with the guide blocks 16.
The working principle and the beneficial effects of the technical scheme are as follows:
when the welding gun adjusting unit is used, after the portal frame 5 moves to a welding starting point, the hydraulic cylinder 7 is started to enable the hydraulic rod 8 to extend downwards, the hydraulic rod 8 drives the two rotating rods 11 to rotate simultaneously, the rotating rods 11 slide along the inner wall of the rotating cylinder 15, the rotating cylinder 15 plays a guiding role on the rotating rods 11, the bottom end of the rotating rod 11 is meshed with the gear 13 to drive the gear 13 to rotate anticlockwise when the rotating rod 11 slides, the gear 13 is meshed with the rack 14 to drive the rack 14 to slide towards the direction close to the hydraulic rod 8, and the welding gun 6 on the rack 14 moves along with the rack and approaches to welding positions on two sides of the U-shaped rib 3. The welding gun adjusting unit is adopted, the position of the welding gun 6 can be quickly adjusted, the welding gun 6 is close to the bottom end of the U-shaped rib 3, the welding end can be opposite to the welding position, the two welding guns 6 are synchronously adjusted, the distances between the welding gun 6 and the U-shaped rib 3 are equal, the consistency of welding seams in the two-way welding process is improved, and the two sides of the U-shaped rib 3 are uniformly stressed.
As shown in fig. 3, in one embodiment, the local positioning unit includes: the first clamping plate 17, the second clamping plate 18 and the adjusting frame 19 are connected to the bottom end of the hydraulic rod 8, the first clamping plate 17 is horizontally arranged, the two second clamping plates 18 are arranged on two sides of the first clamping plate 17 to form clamping surfaces adapting to the U-shaped ribs 3, gaps are arranged between the first clamping plate 17 and the second clamping plate 18, and the output end of the adjusting frame 19 is connected with the second clamping plate 18 and used for adjusting the included angle between the second clamping plate 18 and the first clamping plate 17.
The working principle and the beneficial effects of the technical scheme are as follows:
when the local positioning unit is used, the angle of the second clamping plate 18 is adjusted by adopting the adjusting frame 19, so that the included angle between the second clamping plate 18 and the first clamping plate 17 is equal to the included angle between the side surface and the top surface of the U-shaped rib 3, the second clamping plate 18 and the two first clamping plates 17 form a clamping surface together, the fit degree of the clamping surface and the U-shaped rib 3 is improved, and the welding device is suitable for welding U-shaped ribs 3 with different angles. Then along with the downward movement of the hydraulic rod 8, the first clamping plate 17 is contacted with the top surface of the U-shaped rib 3, the second clamping plate 18 is contacted with the side surface of the U-shaped rib 3, the upper part of the U-shaped rib 3 is clamped by the two clamping plates, and along with the movement of the portal frame 5 during welding, the two clamping plates move on the U-shaped rib 3, so that the stability of the welding position is maintained. Gaps are arranged between the first clamping plate 17 and the second clamping plate 18, the top surface and the side surfaces are respectively clamped, the coupling between the clamping plates is reduced, and the pulling deformation between the surfaces in the welding process is avoided.
As shown in fig. 4, in one embodiment, the adjusting frame 19 includes:
the horizontal sliding rail 21 is connected to the bottom end of the adjusting frame 19 and is arranged at the bottom opening, and the horizontal sliding rail 21 extends along the width direction of the U-shaped rib 3;
a slider 22, wherein the slider 22 is slidably connected to the horizontal slide rail 21;
the vertical rod 23 is connected to the bottom end of the sliding block 22 and penetrates through the adjusting frame 19, a lug 24 is arranged at the side end of the second clamping plate 18, and the lug 24 is hinged to the bottom end of the vertical rod 23;
the first motor 25, the said first motor 25 connects to the outside of the vertical pole 23, and the said first motor 25 output shaft connects with lug 24;
the middle part of the crank 26 is hinged to the inner side of the horizontal sliding rail 21 and is arranged close to the hydraulic rod 8, and a slot for the crank 26 to move is formed in the adjusting frame 19;
the two ends of the connecting rod 27 are respectively hinged with the end part of the crank 26 and the sliding block 22, and the length of the connecting rod 27 is longer than that of the crank 26;
the second motor 28, the second motor 28 is connected outside the horizontal slide rail 21, and the output shaft of the second motor 28 is connected with the middle part of the crank 26.
In one embodiment, the support plate 12 is further provided with: the device comprises a first position detection unit and a second position detection unit, wherein the first position detection unit is used for detecting positions of two vertexes of a U-shaped rib 3 to be welded, the second position detection unit is used for detecting positions of two bottom points of the U-shaped rib 3 to be welded, and the controller is used for calculating and obtaining an inclination angle of the side face of the U-shaped rib 3 according to detected position data, determining edges of the side face of the U-shaped rib 3 and controlling the action of the local positioning unit.
The working principle and the beneficial effects of the technical scheme are as follows:
when the local positioning unit is used, firstly, the supporting plate 12 is moved to the position above the U-shaped rib 3 to be welded, the center of the first clamping plate 17 corresponds to the center of the top surface of the U-shaped rib 3, the inclination angle of the side surface of the U-shaped rib 3 and the center of the side surface of the U-shaped rib 3 are determined by adopting the first position detection unit and the second position detection unit, firstly, the obtained inclination angle of the side surface of the U-shaped rib 3 is taken as an adjusting basis, the first motor 25 is started to enable the output shaft to rotate, the lug 24 is driven to rotate, the second clamping plate 18 is driven to rotate along with the rotation, and therefore the angle of the second clamping plate 18 is adjusted to correspond to the angle of the side surface of the U-shaped rib 3 which is welded currently. Then, based on the obtained side edges of the U-shaped ribs 3, an output shaft of a second motor 28 is started to rotate to drive a crank 26 to rotate with the center point of the crank being the center point, and when the crank 26 rotates, a slide block 22 is pulled by a connecting rod 27 to slide on a horizontal slide rail 21, so that the horizontal position of the second clamping plate 18 is adjusted, and the first clamping plate 17 and the second clamping plate 18 can be simultaneously contacted with the U-shaped ribs 3. The outline of the U-shaped rib 3 is quickly obtained by the detection unit, a basis is provided for adjusting the second clamping plate 18, the quick clamping of the U-shaped rib 3 is realized, the clamping plate component is not required to be replaced, and the applicability and the welding efficiency of the device are improved. The sliding block 22 is driven to move through the rotation of the crank 26, so that the adjustment of the horizontal position of the second clamping plate 22 can be realized under the condition that the second motor 28 rotates unidirectionally, return difference generated during the reversing of the second motor 28 is avoided, and the position adjustment is more accurate.
As shown in fig. 5, in one embodiment, the bottom surface of the first clamping plate 17 and one side of the second clamping plate 18, which is close to the U-shaped rib 3, are both provided with a pressure detection surface 29, and a plurality of pressure detection points are arranged on the pressure detection surface 29, and each pressure detection point uses a pressure sensor to detect the pressure applied when the first clamping plate 17 and the second clamping plate 18 are clamped on the U-shaped rib 3.
The working principle and the beneficial effects of the technical scheme are as follows:
the pressure detection surfaces 29 are arranged on the first clamping plate 17 and the second clamping plate 18, the pressure obtained through detection is the pressure received on the top surface and the side surface of the U-shaped rib 3, when the pressure detection values reach the preset clamping pressure values, the U-shaped rib 3 is in a stable clamping state, when the pressure value of any side of the U-shaped rib 3 exceeds the preset deformation pressure value, the U-shaped rib 3 has deformation risk, the controller records the current position, provides a basis for shaping after welding is finished, and a plurality of pressure detection points are arranged to improve the detection accuracy.
As shown in fig. 6, in one embodiment, the local positioning unit further includes: the splint locking unit, splint locking unit connects in montant 23 to set up in the lug articulated shaft 30 outside with one heart, splint locking unit includes:
the first ring body 31, the first ring body 31 is slidably connected to the outer side of the lug hinge shaft 30;
the third ring body 33, the third ring body 33 connects to the bottom of the vertical rod 23, the third ring body 33 is concentric with the first ring body 31;
the second ring body 32, the second ring body 32 is fixedly connected between the first ring body 31 and the third ring body 33, and the second ring body 32 is made of elastic material;
the grooves 34, the four grooves 34 are uniformly connected in the first ring body 31, and gaps exist between the grooves 34 and the lug hinge shaft 30;
the conical groove 35 is formed in the outer side end of the second ring body 32, the first elastic piece 36 is clamped in the conical groove 45, a gap is formed between the first elastic piece 36 and the conical groove 35, the outer side end of the first elastic piece 36 is in abutting connection with the third ring body 33, and the positions of the four first elastic pieces 36 and the four grooves 34 are respectively corresponding;
the second elastic sheet 38, the second elastic sheet 38 is connected in the second ring body 32, one end of the second elastic sheet 38 is fixedly connected with the side wall of the first elastic sheet 36, the other end of the second elastic sheet 38 is slidably connected with the first ring body 31, the two second elastic sheets 38 are symmetrically arranged on two sides of the groove 34, the second elastic sheet 38 is made of memory alloy materials, the second elastic sheet 38 is connected with a heating device, and the tendency of straightening from a bending state after temperature rising exists.
The working principle and beneficial effects of the technical scheme are as follows:
when the second clamping plate 18 is adjusted in place, the second clamping plate 18 moves on the U-shaped rib 3 along with the movement of the portal frame 5, and the clamping error or welding deformation of the U-shaped rib 3 can cause the second clamping plate 18 to be subjected to pressure displacement during the movement, so that the clamping plate locking unit is arranged. When the second clamping plate 18 is adjusted in place, the second elastic sheet 38 is communicated with the heating device, the second elastic sheet 38 is straightened by a bending state after being heated, the inner side section of the second elastic sheet 38 is abutted with the outer side of the lug hinge shaft 30, and saw teeth are arranged on the outer side of the lug hinge shaft 30, so that the lug hinge shaft 30 is locked through the second elastic sheet 38, and displacement in the welding process is avoided. By means of the grooves 34, when the second clamping plate 18 is used for angle adjustment, contact between the first ring body 31 and the lug hinge shaft 30 is reduced, and smoother adjustment process is ensured. The second ring body 32 is made of elastic materials, so that the second ring body 32 has certain resetting and buffering capabilities, when the second clamping plate 18 is stressed and does not rotate but has bending deformation trend, the elastic second ring body 32 can play a role in buffering and assist the lug hinge shaft 30 to reset, and the rigidity between the first ring body 31 and the second ring body 32 can be increased by adopting the arrangement of the first elastic sheet 36 and the second elastic sheet 38, so that the offset of the first ring body 31 is conveniently controlled within a set range. One end of the second elastic piece 38 is connected to the first elastic piece 36, so that when the second elastic piece 38 straightens, the other end slides along the first ring body 31 to extend.
Through the structural design, the locking is realized after the second clamping plate 18 is guaranteed to be adjusted, the second clamping plate 18 does not deflect, when the second clamping plate 18 is positioned at the deformation position and is in uneven contact with the U-shaped rib 3, and the lug hinge shaft 30 is enabled to be subjected to bending deformation trend, the lug hinge shaft 30 can be buffered, the lug hinge shaft 30 is prevented from being damaged when being in direct rigid contact with the vertical rod 23, and the welding process is facilitated to be continuously carried out.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (4)
1. A bi-directional welding device for a U-shaped rib of a steel box girder top plate, comprising:
the welding platform (1) is used for supporting the steel box girder top plate (2) and the U-shaped ribs (3);
the sliding table (4) is connected to two sides of the welding platform (1) and used for moving the portal frame (5);
the welding guns (6), the two welding guns (6) are connected below the portal frame (5) and are arranged on two sides of the U-shaped rib (3);
the local positioning unit is connected below the portal frame (5) and is used for clamping and positioning the welding position of the U-shaped rib (3) and the clamping angle is adjustable;
the welding gun adjusting unit is connected between the portal frame (5) and the welding guns (6) and used for synchronously adjusting the distance between the welding positions of the two welding guns (6) and the U-shaped rib (3);
the supporting plate (12) is connected to the bottom end of the portal frame (5) in a sliding manner;
the hydraulic cylinder (7), the hydraulic cylinder (7) is connected to the center of the supporting plate (12), the output end of the hydraulic cylinder (7) is vertically connected with a hydraulic rod (8), the side end of the hydraulic rod (8) is connected with the welding gun adjusting unit, the bottom end of the hydraulic rod (8) is connected with the local positioning unit, and the hydraulic cylinder (7) drives the welding gun adjusting unit and the local positioning unit to synchronously act;
the welding gun adjusting unit includes:
the two rotating rods (11) are symmetrically hinged to two sides of the hydraulic rod (8), the rotating rods (11) are obliquely arranged and are lowered in height from the hydraulic rod (8) to two sides, and clamping teeth are arranged at the bottom end of the rotating rods (11);
the gear (13) is rotationally connected to the supporting plate (12) and is meshed with the bottom end of the rotating rod (11);
the rack (14) is arranged on the supporting plate (12) in a sliding manner and is in meshed connection with the bottom end of the gear (13), the welding gun (6) is obliquely connected to the rack (14), and the welding end of the welding gun (6) is close to the U-shaped rib (3);
the support plate (12) is connected with a rotary drum (15) and guide blocks (16), the rotary drum (15) is hinged to the support plate (12), one end, far away from the hydraulic rod (8), of the rotary rod (11) extends into the rotary drum (15) and is in sliding connection with the inner wall of the rotary drum, the two guide blocks (16) are horizontally arranged along the support plate (12), and the rack (14) is in sliding connection with the guide blocks (16);
the local positioning unit includes: the clamping device comprises a first clamping plate (17), a second clamping plate (18) and an adjusting frame (19), wherein the first clamping plate (17) is connected to the bottom end of a hydraulic rod (8), the first clamping plate (17) is horizontally arranged, two second clamping plates (18) are arranged on two sides of the first clamping plate (17) to form clamping surfaces which are adaptive to U-shaped ribs (3), gaps are formed between the first clamping plate (17) and the second clamping plate (18), and the output end of the adjusting frame (19) is connected with the second clamping plate (18) and is used for adjusting the included angle between the second clamping plate (18) and the first clamping plate (17);
the adjusting frame (19) comprises:
the horizontal sliding rail (21) is connected to the bottom end of the adjusting frame (19) and is arranged at the bottom opening, and the horizontal sliding rail (21) extends along the width direction of the U-shaped rib (3);
the sliding block (22), the said sliding block (22) is connected to horizontal slide rail (21) slidably;
the vertical rod (23) is connected to the bottom end of the sliding block (22) and penetrates through the adjusting frame (19), a lug (24) is arranged at the side end of the second clamping plate (18), and the lug (24) is hinged to the bottom end of the vertical rod (23);
the first motor (25), first motor (25) are connected in montant (23) outside, just first motor (25) output shaft is connected with lug (24).
2. The bi-directional welding device for U-ribs of a steel box girder top plate of claim 1, further comprising: and the clamping units are connected to two ends of the welding platform (1) and are used for clamping and fixing the U-shaped ribs (3) at preset positions on the top plate (2) of the steel box girder.
3. A bi-directional welding apparatus for U-ribs of steel box girder top plates according to claim 1, wherein said adjusting frame (19) further comprises:
the middle part of the crank (26) is hinged to the inner side of the horizontal sliding rail (21) and is arranged close to the hydraulic rod (8), and a slot for the crank (26) to move is formed in the adjusting frame (19);
the two ends of the connecting rod (27) are respectively hinged with the end part of the crank (26) and the sliding block (22), and the length of the connecting rod (27) is longer than that of the crank (26);
the second motor (28), second motor (28) are connected in the outside of horizontal slide rail (21), the output shaft of second motor (28) is connected with crank (26) middle part.
4. The bidirectional welding device for the U-shaped rib of the steel box girder top plate according to claim 1, wherein the bottom surface of the first clamping plate (17) and one side, close to the U-shaped rib (3), of the second clamping plate (18) are respectively provided with a pressure detection surface (29), a plurality of pressure detection points are arranged on the pressure detection surface (29), and pressure applied to the clamping of the first clamping plate (17) and the second clamping plate (18) on the U-shaped rib (3) is detected by adopting a pressure sensor at each pressure detection point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058393.7A CN116852014B (en) | 2023-08-22 | 2023-08-22 | Bidirectional welding device for U-shaped rib of top plate of steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058393.7A CN116852014B (en) | 2023-08-22 | 2023-08-22 | Bidirectional welding device for U-shaped rib of top plate of steel box girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116852014A CN116852014A (en) | 2023-10-10 |
| CN116852014B true CN116852014B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311058393.7A Active CN116852014B (en) | 2023-08-22 | 2023-08-22 | Bidirectional welding device for U-shaped rib of top plate of steel box girder |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082425A1 (en) * | 2012-11-29 | 2014-06-05 | 山东水泊焊割设备制造有限公司 | Cantilevered automatic welding machine for dumper truck box panel |
| CN204747839U (en) * | 2015-06-30 | 2015-11-11 | 成都华远焊割设备有限公司 | Novel special plane is welded at non -uniform beam longmen |
| CN107881918A (en) * | 2017-11-07 | 2018-04-06 | 中国二冶集团有限公司 | A kind of construction method assembled for steel bridge beam and face with U-shaped rib |
| CN109434245A (en) * | 2018-12-04 | 2019-03-08 | 西安建筑科技大学 | A kind of portal frame bonding machine |
| CN211219249U (en) * | 2019-12-17 | 2020-08-11 | 烟台双赫机电制造有限公司 | Skeleton welding set for stereo garage |
-
2023
- 2023-08-22 CN CN202311058393.7A patent/CN116852014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082425A1 (en) * | 2012-11-29 | 2014-06-05 | 山东水泊焊割设备制造有限公司 | Cantilevered automatic welding machine for dumper truck box panel |
| CN204747839U (en) * | 2015-06-30 | 2015-11-11 | 成都华远焊割设备有限公司 | Novel special plane is welded at non -uniform beam longmen |
| CN107881918A (en) * | 2017-11-07 | 2018-04-06 | 中国二冶集团有限公司 | A kind of construction method assembled for steel bridge beam and face with U-shaped rib |
| CN109434245A (en) * | 2018-12-04 | 2019-03-08 | 西安建筑科技大学 | A kind of portal frame bonding machine |
| CN211219249U (en) * | 2019-12-17 | 2020-08-11 | 烟台双赫机电制造有限公司 | Skeleton welding set for stereo garage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116852014A (en) | 2023-10-10 |
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