CN116810263A - Positioning and fixing device for welding and processing U-shaped ribs of steel box girder - Google Patents
Positioning and fixing device for welding and processing U-shaped ribs of steel box girder Download PDFInfo
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- CN116810263A CN116810263A CN202310888249.XA CN202310888249A CN116810263A CN 116810263 A CN116810263 A CN 116810263A CN 202310888249 A CN202310888249 A CN 202310888249A CN 116810263 A CN116810263 A CN 116810263A
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- 238000007493 shaping process Methods 0.000 claims description 32
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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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
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Abstract
The invention discloses a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder, which comprises the following components: the table top is used for supporting the top plate of the steel box girder; the fixing seat is used for clamping the U-shaped rib on the top plate of the steel box girder; the positioning unit is used for moving the fixed seat to a target clamping position; the detection unit is used for detecting the deformation condition of the U-shaped rib after welding and adjusting the clamping position of the fixing seat. According to the invention, the movable fixing seat design is adopted, the clamping position can be adjusted according to the requirement, the U-shaped rib is fixed on the top plate of the steel box girder, the stability of the U-shaped rib in the welding process is ensured, the deformation position of the U-shaped rib can be rapidly positioned, the clamping point of the fixing seat is determined according to the deformation position, the distance between the clamping point and the deformation position is shortened, the continuous deformation of the U-shaped rib in the length direction is avoided, and the welding quality is improved.
Description
Technical Field
The invention relates to the technical field of steel box girder processing, in particular to a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder.
Background
The steel box girder is also called a steel plate box girder, and is a common structural form of a large-span bridge. Is commonly used on bridges with larger spans, and is called a steel box girder because of the shape of a box. The steel box girder is of a full-welded structure, the steel box girder is provided with a line type according to a design construction drawing during manufacturing, a full bridge is subjected to three-dimensional modeling by using lofting software, and the specific appearance of each part, in particular the flat and vertical dimensions of main parts such as a top plate, a bottom plate, a partition plate, a web plate and the like are determined. And then dividing the steel box girder segment into a plurality of plate units for independent prefabrication, and finally, integrally performing total splicing welding. Because the single case of the segment is larger in size, the thickness and rigidity of the single plate are smaller, and the welding seams are dense. Therefore, how to control the welding deformation is an important point and difficulty in manufacturing the steel box girder.
In the prior art, as in the chinese patent with application number 202120428711.4, a welding pedestal for preventing welding deformation of a steel box girder is disclosed, comprising: the base, lift platform, arm, fixed steel sheet and U type rib on the base through the arm, the base lifts up lift platform when welding and makes the steel sheet by the arch in advance, and the arch deformation of steel sheet is restoreed in the platform decline after the welding is accomplished. When the device is used, the welding deformation in the vertical direction is eliminated by adopting the direction of the base reverse arched grouped jig frame, but the U-shaped rib is longer in length, so that the welding deformation can be also generated in the length direction during welding.
Therefore, there is a need for a positioning and fixing device for welding U-shaped ribs of steel box girders, which at least partially solves the problems in 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.
In order to at least partially solve the above problems, the present invention provides a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder, comprising:
the table top is used for supporting the top plate of the steel box girder;
the fixing seat is used for clamping the U-shaped rib on the top plate of the steel box girder;
the positioning unit is used for moving the fixed seat to a target clamping position;
the detection unit is used for detecting the deformation condition of the U-shaped rib after welding and adjusting the clamping position of the fixing seat.
Preferably, the positioning unit includes: the electric sliding table is arranged above the table top, the lifting rod is connected to the output end of the electric sliding table, the bottom end of the lifting rod is connected with the fixing base, the electric sliding table is used for driving the fixing base to move along the length direction of the U-shaped rib, and the lifting rod is used for driving the fixing base to move along the vertical direction.
Preferably, the number of the fixing seats is three, wherein two fixing seats are respectively clamped at two ends of the U-shaped rib, and one fixing seat is movably arranged above the U-shaped rib.
Preferably, the detection unit includes: the image acquisition equipment is used for acquiring overlook images of the welded U-shaped ribs, positioning deformation positions of the U-shaped ribs according to image acquisition results, and adjusting clamping positions of the fixing seats through the positioned deformation positions.
Preferably, the fixing seat is internally provided with a fixing unit and a shaping unit, the fixing unit is used for clamping and fixing the outer wall of the U-shaped rib, and the shaping unit is used for driving the fixing unit to reciprocate to shape the appearance of the U-shaped rib.
Preferably, the fixing unit includes: the clamping blocks are connected to the side ends of the fixing base, U-shaped grooves adaptive to the U-shaped ribs are formed in the bottom ends of the clamping blocks, and the number of the U-shaped grooves is equal to that of the clamped U-shaped ribs.
Preferably, the shaping unit includes:
the guide column is connected to the bottom end of the fixed seat and provided with a guide chute along the vertical direction;
the guide block is connected in the guide chute in a sliding way, penetrates through the guide column and is connected with the clamping block, and a spring is connected between the top end of the guide block and the top end of the guide chute;
the two gears are connected to the inner wall of the fixed seat in a rotating way, the two gears are connected in a meshed way, one gear rotating shaft is connected with the output end of the motor, and the gears are connected with a deflector rod;
the bull stick, bull stick hinge in the fixing base bottom, bull stick one end extend to in the fixing base with the driving lever contact, the bull stick other end extend to in the guide post with the guide block top contact, be connected with the spring between bull stick side and the fixing base, set up the fluting that supplies the bull stick to remove in the guide post.
Preferably, the shaping unit further comprises: the magnetic block is connected to the bottom end of the guide block, the electromagnetic block is connected to the bottom end of the guide chute, and the electromagnetic block is attracted to the magnetic block after being electrified.
Preferably, the positioning and fixing device for welding and processing the U-shaped rib of the steel box girder further comprises a shaping auxiliary unit, wherein the shaping auxiliary unit comprises:
the two transmission cavities are symmetrically arranged in the clamping block;
the rotary tables are rotationally connected to the inner wall of the transmission cavity, lugs are connected to the rotary tables, and the two rotary tables are symmetrically arranged in the transmission cavity;
the arc-shaped rod is connected to the lug and is arranged concentrically with the turntable;
the baffle is connected to the transmission chamber inner wall, and the arc pole passes the baffle and rather than sliding connection, and the cover is equipped with the spring on the arc pole, and spring coupling is between baffle and lug, and the trend that the arc pole has the outward motion of transmission chamber.
Preferably, the shaping auxiliary unit further comprises:
the accommodating groove is formed in the side end of the U-shaped groove and is communicated with the transmission cavity;
the pressing plate is connected in the accommodating groove in a sliding manner, a wedge-shaped surface is arranged at the bottom end of the pressing plate, a sliding groove is formed in the inner side of the pressing plate, a sliding block is connected in the sliding groove in a limiting sliding manner, and the sliding block is hinged with an arc-shaped rod close to the inner side of the clamping block;
the clamping jaw is connected with an arc-shaped rod close to the outer side of the clamping block, a slot for the clamping jaw to move is formed in the clamping block, and a plurality of clamping teeth are connected to the top plate;
the wire wheel is connected to the inner wall of the transmission cavity in a rotating way, three strands of connecting wires are wound on the wire wheel, one strand of connecting wires penetrates through the top end of the guide chute to be connected with the guide block, and the other two strands of connecting wires are respectively connected with the two arc-shaped rods.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the positioning and fixing device for welding and processing the U-shaped rib of the steel box girder, provided by the invention, the movable fixing seat is adopted, so that the clamping position can be adjusted according to requirements, the U-shaped rib is fixed on the top plate of the steel box girder, the stability of the U-shaped rib in the welding process is ensured, the deformation position of the U-shaped rib can be rapidly positioned, the clamping point of the fixing seat is determined according to the deformation position, the distance between the clamping point and the deformation position is shortened, the continuous deformation of the U-shaped rib in the length direction is avoided, and the welding quality 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 positioning and fixing device for welding and processing U-shaped ribs of a steel box girder;
FIG. 2 is a schematic side sectional view of a positioning and fixing device for welding U-shaped ribs of a steel box girder according to the present invention;
FIG. 3 is a schematic cross-sectional view of a fixing base in a positioning and fixing device for welding U-shaped ribs of a steel box girder;
FIG. 4 is a schematic cross-sectional view of a clamping block in a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder;
FIG. 5 is a schematic view showing a cross-sectional structure of one side of a clamping block in a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder;
fig. 6 is a schematic view of a partially enlarged structure at a position a in fig. 5 in the positioning and fixing device for welding processing of a U-shaped rib of a steel box girder.
In the figure: 1. a fixing seat; u-shaped ribs; 3. a top plate; 4. a table top; 5. an electric sliding table; 6. a lifting rod; 7. a clamping block; 8.U type grooves; 11. a guide post; 12. a guide chute; 13. a guide block; 14. a gear; 15. a deflector rod; 16. a rotating rod; 17. a magnetic block; 18. an electromagnetic block; 19. a transmission cavity; 20. a turntable; 21. a lug; 22. an arc-shaped rod; 23. a baffle; 24. a receiving groove; 25. a pressing plate; 26. a chute; 27. a slide block; 28. a claw; 29. a wire wheel; 30. and (5) connecting wires.
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.
Example 1:
as shown in fig. 1-2, the invention provides a positioning and fixing device for welding processing of a U-shaped rib of a steel box girder, which comprises the following components:
a table top 4 for supporting the top plate 3 of the steel box girder;
the fixing seat 1 is used for clamping the U-shaped rib 2 on a top plate 3 of the steel box girder;
the positioning unit is used for moving the fixing seat 1 to a target clamping position;
the detection unit is used for detecting the deformation condition of the U-shaped rib 2 after welding and adjusting the clamping position of the fixing seat 1.
The positioning unit includes: the electric sliding table 5 and the lifter 6, the electric sliding table 5 sets up in mesa 4 top, and lifter 6 is connected in electric sliding table 5 output, and the bottom and the fixing base 1 of lifter 6 are connected, and electric sliding table 5 is used for driving fixing base 1 to remove along U type rib 2 length direction, and lifter 6 is used for driving fixing base 1 to remove along vertical direction.
The number of the fixing seats 1 is three, two fixing seats 1 are respectively clamped at two ends of the U-shaped rib 2, and one fixing seat 1 is movably arranged above the U-shaped rib 2.
The working principle and the beneficial effects of the technical scheme are as follows:
when the positioning and fixing device for welding and processing the U-shaped ribs of the steel box girder is used, firstly, the top plate 3 is placed on the table top 4 and clamped and fixed, secondly, the U-shaped ribs 2 are placed at the preset position above the top plate 3, the positioning unit is started to move the fixing seat 2 to the target clamping position, the electric sliding table 5 drives the fixing seat 1 to move along the horizontal direction during movement, the horizontal position of the fixing seat 1 is aligned, the lifting rod 6 drives the fixing seat 1 to move along the vertical direction, the fixing seat 1 is close to the U-shaped ribs 2 to fix the U-shaped ribs, after the U-shaped ribs 1 are fixed, the welding assembly is started to weld the U-shaped ribs 2 on the top plate 3, then the detection unit is started to detect the deformation condition of the U-shaped ribs 2, the two fixing seats 1 at the end part are kept fixed, the other fixing seat 1 is moved to the position close to obvious deformation for clamping, the distance between the clamping point and the deformation position is shortened, and continuous deformation in the length direction is avoided.
The invention provides a positioning and fixing device for welding and processing U-shaped ribs of a steel box girder, which is designed by adopting a movable fixing seat 1, can adjust the clamping position according to requirements, fix the U-shaped ribs 2 on a top plate 3 of the steel box girder, ensure the stability of the U-shaped ribs 2 in the welding process, quickly position the deformation position of the U-shaped ribs 2, determine the clamping point of the fixing seat 1 according to the deformation position, shorten the distance between the clamping point and the deformation position, avoid the continuous deformation of the U-shaped ribs 2 in the length direction, and improve the welding quality.
Example 2:
on the basis of the above embodiment 1, the detection unit includes: the image acquisition equipment is used for acquiring the overlook image of the welded U-shaped rib 2, positioning the deformation position of the U-shaped rib 2 according to the image acquisition result, and adjusting the clamping position of the fixing seat 1 through the positioned deformation position.
The working principle and the beneficial effects of the technical scheme are as follows:
the overlooking image of the welded U-shaped rib 2 is obtained through the image acquisition equipment, the edge image of the U-shaped rib 2 is calculated, the overlooking image is compared with the edge image of the preset position of the U-shaped rib 2, when the deviation of the edge image exceeds a preset value, obvious deformation is considered to be generated, and the position is set as a locating point.
Example 3:
on the basis of the embodiment 1, the U-shaped rib 2 is set into a plurality of welding sections, and when one of the welding sections is welded, the two fixing seats 1 are respectively clamped at two ends of the current welding section of the U-shaped rib 2.
The working principle and the beneficial effects of the technical scheme are as follows:
when U type rib 2 length is longer, cut apart U type rib 2 into a plurality of welded segment, two fixing bases 1 clamping are at the both ends of the current welded segment of U type rib 2 during the clamping, then weld, after the welding of current welded segment is accomplished, remove fixing base 1 to next welded segment both ends, just so can carry out the segmentation welding to U type rib 2, can reduce single welded length, reduce the deformation of U type rib 2 in the welding process, improve machining precision.
Example 4:
on the basis of the embodiment 1, a fixing unit and a shaping unit are arranged in the fixing seat 1, the fixing unit is used for clamping and fixing the outer wall of the U-shaped rib 2, and the shaping unit is used for driving the fixing unit to reciprocate to shape the outer shape of the U-shaped rib 2.
The fixing unit includes: the clamping blocks 7, the clamping blocks 7 are connected to the side ends of the fixing base 1, and the number of U-shaped grooves 8,U which are adapted to the U-shaped ribs 2 and the number of the U-shaped grooves 8 which are adapted to the U-shaped ribs 2 are equal to the number of the clamped U-shaped ribs 2 at the bottom ends of the clamping blocks 7.
The working principle and the beneficial effects of the technical scheme are as follows:
fixing base 1 has the fixed function with the plastic, fixing base 1 adopts fixed unit to fix U type rib 2, moves fixing base 1 to U type rib 2 top clamping position department during the use, just faces U type groove 8 and U type rib 2 with grip block 7 bottom, then positioning unit moves fixing base 1 downwards, makes U type groove 8 detain and establishes in U type rib 2 top, and the top in U type groove 8 and the top crimping of U type rib 2 this moment, the bottom and the roof 3 crimping of grip block 7, and then fixes U type rib 2.
The plurality of U-shaped grooves 8 and the plurality of U-shaped ribs 2 are arranged at intervals, each U-shaped groove 8 corresponds to each U-shaped rib 2, and the plurality of U-shaped ribs 2 can be fixed at the same time.
Example 5:
as shown in fig. 2 and 3, the shaping unit includes, on the basis of embodiment 4 described above:
the guide post 11 is connected to the bottom end of the fixed seat 1, and a guide chute 12 is formed in the vertical direction;
the guide block 13 is slidably connected in the guide chute 12, the guide block 13 penetrates through the guide column 11 to be connected with the clamping block 7, and a spring is connected between the top end of the guide block 13 and the top end of the guide chute 12;
the gear 14, two gears 14 are connected to the inner wall of the fixed seat 1 in a rotating way, the two gears 14 are connected in a meshed way, a rotating shaft of one gear 14 is connected with the output end of the motor, and a deflector rod 15 is connected to the gear 14;
the bull stick 16, bull stick 16 articulates in fixing base 1 bottom, and bull stick 16 one end extends to in the fixing base 1 and contacts with driving lever 15, and bull stick 16 other end extends to in the guide post 11 and contacts with guide block 13 top, is connected with the spring between bull stick 16 side and the fixing base 1, has seted up the fluting that supplies bull stick 16 to remove in the guide post 11.
The shaping unit further comprises: the magnetic block 17 and the electromagnetic block 18, the magnetic block 17 is connected to the bottom end of the guide block 13, the electromagnetic block 18 is connected to the bottom end of the guide chute 12, and the electromagnetic block 18 is attracted to the magnetic block 17 after being electrified.
The working principle and the beneficial effects of the technical scheme are as follows:
the fixing seat 1 has the functions of fixing and shaping, when the fixing seat 1 adopts a fixing mode, the electromagnetic block 18 is electrified, the electromagnetic block 18 generates the magnetic attraction magnetic block 17 to drive the guide block 13 to slide downwards along the guide sliding groove 12 and to be fixed at the bottom end of the guide sliding groove 12, the guide block 13 drives the clamping block 7 to move to the lowest position, and the fixing seat 1 is clamped on the U-shaped rib 2 by the positioning unit.
When the fixing seat 1 adopts a shaping mode, firstly, the middle fixing seat 1 is moved to a position with obvious deformation, namely a target shaping position, the electromagnetic block 18 is electrified and the clamping block 7 is clamped on the U-shaped rib 2, so that the bottommost end of the clamping block 7 is ensured to be contacted with the top plate 3; then, a shaping mode is started, the electromagnetic block 18 is powered off, the guide block 13 upwards resets under the action of a spring to drive the clamping block 7 to upwards slide, the bottom end of the rotating rod 16 is jacked by the guide block 13 to enable the rotating rod 16 to rotate, then the motor is started to drive the gear 14 to rotate to drive the other gear 14 to synchronously rotate, the deflector rod 15 on the gear 14 rotates along with the rotating rod, the deflector rod 15 rotates to the inner side of the rotating rod 16 and abuts against the rotating rod, the rotating rod 16 is stirred to reversely rotate along with the rotation of the deflector rod 15, the bottom end of the deflector rod 15 extrudes the guide block 13 to enable the guide block 13 to downwards slide, the clamping block 7 is pushed to downwards slide, after the deflector rod 15 rotates to separate from the rotating rod 16, the rotating rod 16 rotates to reset under the action of the spring, and the guide block 13 upwards resets under the action of the spring. The above action is then cycled as the gear 14 rotates. The clamping block 7 is enabled to circularly slide up and down, and the deformed part of the U-shaped rib 2 is repeatedly extruded and smoothed.
Through above-mentioned structural design, integrated fixed and plastic function on fixing base 1, the quick switch plastic mode when needs plastic makes grip block 7 can direct action in the deformation position, smoothes U type rib 2 crooked or torsion position department through the mode of cyclic extrusion, realizes the quick correction of U type rib 2. Compared with a direct pressurizing mode, the shaping effect of the U-shaped rib 2 can be improved by adopting cyclic pressure loading, the pulling of nearby undeformed areas during shaping of the U-shaped rib 2 is reduced, shaping of local deformation positions can be realized by adopting the movable fixing seat 1, welding and shaping are matched in the welding process, deformation of the U-shaped rib 2 is further reduced, and the difficulty of overall shaping of the U-shaped rib 2 is reduced.
Example 6:
as shown in fig. 4-6, on the basis of the above embodiment 5, the positioning and fixing device for welding the U-shaped rib of the steel box girder further includes a shaping auxiliary unit, where the shaping auxiliary unit includes:
the two transmission cavities 19 are symmetrically arranged in the clamping block 7;
the turntables 20 are rotationally connected to the inner wall of the transmission cavity 19, lugs 21 are connected to the turntables 20, and the turntables 20 are symmetrically arranged in the transmission cavity 19;
an arc-shaped rod 22, the arc-shaped rod 22 being connected to the lug 21 and being arranged concentrically with the turntable 20;
the baffle plate 23 is connected to the inner wall of the transmission cavity 19, the arc-shaped rod 22 passes through the baffle plate 23 and is in sliding connection with the baffle plate, a spring is sleeved on the arc-shaped rod 22 and is connected between the baffle plate 23 and the lug 21, and the arc-shaped rod 22 has a trend of moving outwards of the transmission cavity 19;
the accommodating groove 24 is formed in the side end of the U-shaped groove 8 and is communicated with the transmission cavity 19;
the pressing plate 25 is slidably connected in the accommodating groove 24, a wedge-shaped surface is arranged at the bottom end of the pressing plate 25, a chute 26 is formed in the inner side of the pressing plate 25, a sliding block 27 is in limit sliding connection in the chute 26, and the sliding block 27 is hinged with the arc-shaped rod 22 close to the inner side of the clamping block 7;
the clamping jaw 28 is connected with the arc-shaped rod 22 which is close to the outer side of the clamping block 7, a slot for the clamping jaw 28 to move is formed in the clamping block 7, and a plurality of clamping teeth are connected to the top plate 3;
the wire wheel 29, wire wheel 29 rotates to be connected in the inner wall of transmission chamber 19, and is connected with the torsional spring in the wire wheel 29 pivot, twines on the wire wheel 19 and has three strands of connecting wires 30, and one strand of connecting wires 30 passes guide chute 12 top and is connected with guide block 13, and two other strands of connecting wires 30 are connected with two arc poles 22 respectively.
The working principle and the beneficial effects of the technical scheme are as follows:
when the shaping auxiliary unit is used, when the fixing seat 1 adopts a fixed mode, when the guide block 13 slides downwards to the bottom end of the guide chute 12, one of the connecting lines 30 is pulled downwards to drive the wire wheel 29 to rotate, the other two connecting lines 30 are loosened, the arc-shaped rod 22 slides in the direction away from the baffle plate 23 under the action of the spring, the pressing plate 25 is driven by the arc-shaped rod 22 to slide in the direction of the U-shaped groove 8, the pressing plate 25 stretches into the U-shaped groove 8, and as the bottom end of the pressing plate 25 is provided with a wedge-shaped surface, when the U-shaped groove 8 is buckled above the U-shaped rib 2, the side end of the U-shaped rib 2 contacts with the wedge-shaped surface and slides relatively, the pressing plate 25 is pressed into the accommodating groove 24 again, and a certain pressure is generated on the U-shaped rib 2 by the pressing plate 25 under the action of the spring, so that the U-shaped rib 2 is firmly clamped, and the clamping stability is improved; the other arc-shaped rod 22 drives the clamping jaw 28 to rotate and approach the top plate 3, the clamping jaw 28 is clamped with the clamping teeth on the top plate 3, friction force between the clamping plate 28 and the top plate 3 is increased, and relative sliding of the top plate 3 and the clamping jaw 29 is avoided.
When the fixing seat 1 adopts a shaping mode, when the guide block 13 slides downwards to the bottom end of the guide chute 12, the clamping jaw 28 is clamped with the clamping teeth on the top plate 3, so that the relative sliding of the top plate 3 and the clamping jaw 29 can be avoided, namely the top plate 3 is prevented from being pulled to deform during shaping, the pressing plate 25 generates certain pressure on the U-shaped rib 2, and the deformation position in the shaping process is ensured to be always under the action of pressure; when the guide block 13 slides upwards, one of the connecting wires 30 is loosened upwards, the rotating shaft of the wire wheel 29 rotates and resets under the action of the torsion spring to drive the arc-shaped rod 22 to reset, the pressing plate 25 is pulled back into the accommodating groove 24, and the pressure applied to the U-shaped rib 2 is reduced.
Through the above-mentioned structural design, when U type rib 2 plastic, because U type rib 2 bottom has welded with roof 3, the pressure that needs when U type rib 2 bottom plastic is just big, adopt plastic auxiliary device, remove the extrusion force of adjusting clamp plate 25 simultaneously at grip block 7, the pressure that receives at the U type rib 2 bottom when making the plastic is great, the pressure that the top received is less, adapt to the rigidity of U type rib 2 different positions department, reduce and adopt the same plastic pressure to produce the sunken condition of top excessive extrusion, the plastic effect is better, and adopt jack catch 28 and roof 3 fixed, avoid when too big to U type rib 2 extrusion force, pull roof 3 emergence deformation.
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 (10)
1. Positioning and fixing device for welding and processing U-shaped ribs of steel box girders is characterized by comprising:
a table top (4) for supporting the top plate (3) of the steel box girder;
the fixing seat (1) is used for clamping the U-shaped rib (2) on a top plate (3) of the steel box girder;
the positioning unit is used for moving the fixing seat (1) to a target clamping position;
the detection unit is used for detecting the deformation condition of the U-shaped rib (2) after welding and adjusting the clamping position of the fixing seat (1).
2. The positioning and fixing device for welding and processing U-shaped ribs of steel box girders according to claim 1, wherein the positioning unit comprises: electric slipway (5) and lifter (6), electric slipway (5) set up in mesa (4) top, and lifter (6) are connected in electric slipway (5) output, and the bottom of lifter (6) is connected with fixing base (1), and electric slipway (5) are used for driving fixing base (1) along U type rib (2) length direction removal, and lifter (6) are used for driving fixing base (1) along vertical direction removal.
3. The positioning and fixing device for welding processing of the U-shaped ribs of the steel box girder according to claim 1 is characterized in that the number of the fixing seats (1) is three, wherein two fixing seats (1) are respectively clamped at two ends of the U-shaped ribs (2), and one fixing seat (1) is movably arranged above the U-shaped ribs (2).
4. The positioning and fixing device for welding processing of U-shaped ribs of steel box girders according to claim 1, wherein the detection unit comprises: the image acquisition equipment is used for acquiring a overlook image of the welded U-shaped rib (2), positioning the deformation position of the U-shaped rib (2) according to an image acquisition result, and adjusting the clamping position of the fixing seat (1) through the positioned deformation position.
5. The positioning and fixing device for welding processing of the U-shaped rib of the steel box girder according to claim 1 is characterized in that a fixing unit and a shaping unit are arranged in the fixing seat (1), the fixing unit is used for clamping and fixing the outer wall of the U-shaped rib (2), and the shaping unit is used for driving the fixing unit to reciprocate to shape the U-shaped rib (2).
6. The positioning and fixing device for welding process of U-shaped rib of steel box girder according to claim 5, wherein the fixing unit comprises: the clamping blocks (7), the clamping blocks (7) are connected to the side ends of the fixing base (1), U-shaped grooves (8) which are adaptive to the U-shaped ribs (2) are formed in the bottom ends of the clamping blocks (7), and the number of the U-shaped grooves (8) is equal to that of the clamped U-shaped ribs (2).
7. The positioning and fixing device for welding process of U-shaped rib of steel box girder according to claim 6, wherein the shaping unit comprises:
the guide column (11), the guide column (11) is connected to the bottom end of the fixed seat (1), and a guide chute (12) is formed along the vertical direction;
the guide block (13), the guide block (13) is connected in the guide chute (12) in a sliding way, the guide block (13) passes through the guide column (11) to be connected with the clamping block (7), and a spring is connected between the top end of the guide block (13) and the top end of the guide chute (12);
the two gears (14) are rotatably connected to the inner wall of the fixed seat (1), the two gears (14) are in meshed connection, the rotating shaft of one gear (14) is connected with the output end of the motor, and the gear (14) is connected with a deflector rod (15);
the rotary rod (16), the rotary rod (16) articulates in fixing base (1) bottom, in rotary rod (16) one end extends to fixing base (1) in contact with driving lever (15), in the other end of rotary rod (16) extends to guide post (11) with guide block (13) top contact, is connected with the spring between rotary rod (16) side and fixing base (1), has seted up the fluting that supplies rotary rod (16) to remove in guide post (11).
8. The positioning and fixing device for welding process of U-shaped rib of steel box girder according to claim 7, wherein the shaping unit further comprises: the electromagnetic block (17) and the electromagnetic block (18), the magnetic block (17) is connected to the bottom end of the guide block (13), the electromagnetic block (18) is connected to the bottom end of the guide chute (12), and the electromagnetic block (18) is attracted to the magnetic block (17) after being electrified.
9. The positioning and fixing device for welding process of U-shaped rib of steel box girder according to claim 7, further comprising a shaping auxiliary unit comprising:
the two transmission cavities (19) are symmetrically arranged in the clamping block (7);
the rotary tables (20), the rotary tables (20) are connected to the inner wall of the transmission cavity (19) in a rotary mode, lugs (21) are connected to the rotary tables (20), and the two rotary tables (20) are symmetrically arranged in the transmission cavity (19);
the arc-shaped rod (22), the arc-shaped rod (22) is connected to the lug (21) and is arranged concentrically with the turntable (20);
baffle (23), baffle (23) are connected in transmission chamber (19) inner wall, and arc pole (22) pass baffle (23) and rather than sliding connection, and the cover is equipped with the spring on arc pole (22), and spring coupling is between baffle (23) and lug (21), and arc pole (22) have the trend of outside motion of transmission chamber (19).
10. The positioning and fixing device for welding process of U-shaped rib of steel box girder according to claim 9, wherein the shaping auxiliary unit further comprises:
the accommodating groove (24) is formed in the side end of the U-shaped groove (8) and is communicated with the transmission cavity (19);
the pressing plate (25) is slidably connected in the accommodating groove (24), a wedge-shaped surface is arranged at the bottom end of the pressing plate (25), a sliding groove (26) is formed in the inner side of the pressing plate (25), a sliding block (27) is limited in the sliding groove (26) and slidably connected, and the sliding block (27) is hinged with an arc-shaped rod (22) close to the inner side of the clamping block (7);
the clamping jaw (28), the clamping jaw (28) is connected with an arc-shaped rod (22) close to the outer side of the clamping block (7), a slot for the clamping jaw (28) to move is formed in the clamping block (7), and a plurality of clamping teeth are connected to the top plate (3);
the wire wheel (29), wire wheel (29) rotate and connect in transmission chamber (19) inner wall, and the winding has three strands connecting wire (30) on wire wheel (19), and one of them strand connecting wire (30) passes guide chute (12) top and is connected with guide block (13), and two other strands connecting wire (30) are connected with two arc poles (22) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310888249.XA CN116810263B (en) | 2023-07-19 | 2023-07-19 | Positioning and fixing device for welding and processing U-shaped ribs of steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310888249.XA CN116810263B (en) | 2023-07-19 | 2023-07-19 | Positioning and fixing device for welding and processing U-shaped ribs of steel box girder |
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| CN116810263A true CN116810263A (en) | 2023-09-29 |
| CN116810263B CN116810263B (en) | 2024-03-01 |
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| CN110170786A (en) * | 2019-06-14 | 2019-08-27 | 唐山开元特种焊接设备有限公司 | U-shaped rib assembling system |
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|---|---|
| CN116810263B (en) | 2024-03-01 |
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