CN216576305U

CN216576305U - Device for improving welding quality of bridge bent cap steel reinforcement framework

Info

Publication number: CN216576305U
Application number: CN202122778750.XU
Authority: CN
Inventors: 余海龙; 徐忠卫; 马玉珍; 邹宇; 钟雯晶; 赵玉宝; 韩俊; 刘懿震
Original assignee: Qinghai Traffic Detection Co ltd
Current assignee: Qinghai Traffic Detection Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-24
Anticipated expiration: 2031-11-12

Abstract

The utility model belongs to the field of bridge welding equipment, and particularly relates to a device for improving the welding quality of a bridge capping beam steel reinforcement framework, which comprises a support frame, wherein a fixed plate is fixedly connected to the lower surface of a port of the support frame, a movable plate is slidably connected to the lower surface of the port of the support frame, fixed grooves are formed in the surfaces of the movable plate and the fixed plate, a knob is rotatably connected to the surface of the port of the support frame, a connecting plate is bolted to the side surface inside the port of the support frame, a first sliding groove is formed in the surface of the connecting plate, and a rack is slidably connected to the first sliding groove; through rotating the knob, drive gear revolve, gear and rack intermeshing, sliding connection between cooperation rack and the spout makes the rack drive the fly leaf and slides to the fixed plate in the expansion joint is inside, utilizes the fixed slot to carry out the centre gripping to putting into the reinforcing bar of the bridge bent cap steel skeleton between fixed plate and the fly leaf and fixes, and the centre gripping that is applicable to the reinforcing bar of different size of a dimensions is fixed, improves welding quality.

Description

Device for improving welding quality of bridge bent cap steel reinforcement framework

Technical Field

The utility model relates to the field of bridge welding equipment, in particular to a device for improving the welding quality of a bridge capping beam steel reinforcement framework.

Background

The capping beam is a cross beam which is arranged at the top of the framed bent pier and is also called a cap beam for supporting, distributing and transmitting the load of an upper structure.

Need to weld into roof beam bent cap steel framework with horizontal and vertical reinforcing bar in order to improve the overall stability of bridge.

The existing welding of the bridge capping beam steel reinforcement framework is to directly draw the steel bars together and place the steel bars in the groove, and the welding is carried out manually, so that the welding device is not suitable for the fixed welding of the steel bars with different sizes, and therefore, the welding quality of the bridge capping beam steel reinforcement framework is improved aiming at the problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art and solve the problems in the background art, the utility model provides a device for improving the welding quality of a bridge capping beam steel reinforcement framework.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a device for improving the welding quality of a bridge capping beam steel reinforcement framework, which comprises a support frame, wherein a fixed plate is fixedly connected to the lower surface of a port of the support frame, a movable plate is slidably connected to the lower surface of the port of the support frame, fixed grooves are formed in the surfaces of the movable plate and the fixed plate, a knob is rotatably connected to the surface of the port of the support frame, a connecting plate is bolted to the inner side surface of the port of the support frame, a first sliding groove is formed in the surface of the connecting plate, a rack is slidably connected to the first sliding groove, a gear is rotatably connected to the inner part of the port of the support frame, the gear is meshed with the rack, a movable port is formed in the lower surface of the support frame, the port of the movable plate penetrates through the movable port to be bolted to the port of the rack, the port of the knob extends to the inner part of the support frame to be bolted to the gear, and is favorable for welding the bridge capping beam steel reinforcement framework, and (5) clamping and fixing the reinforcing steel bars with different sizes.

Preferably, the port side of the movable plate is fixedly connected with a limiting block in the supporting frame, the limiting block is connected with the supporting frame in a sliding mode, and the movable port is matched with the port of the movable plate, so that the movable plate can slide and the position of the movable plate can be limited.

Preferably, the port rigid coupling of support frame has a screw thread section of thick bamboo, the inside threaded connection of a screw thread section of thick bamboo has a threaded rod No. one, the lower extreme port of a threaded rod rotates and is connected with the bearing frame, the lower extreme bolt joint of bearing frame has the clamp plate, is favorable to the further fixed of bridge reinforcing bar, is convenient for weld.

Preferably, install the base in the support frame, the upper end sliding connection of base has the sliding seat, the upper surface rigid coupling of sliding seat has places a section of thick bamboo, the upper surface of base is seted up flutedly, logical groove has been seted up at the middle part of base, the upper end surface threaded connection of sliding seat has the shank of bolt, the port of shank of bolt extends to in the recess, the front end surface bolt of sliding seat has the laser instrument, the surface mounting of base has the glass window, the laser instrument is located the top of glass window, is favorable to placing the position of a section of thick bamboo and adjusts in a flexible way, and the welding seam between the bridge reinforcing bar is aimed at to the welding rifle of being convenient for accurately, improves welding effect.

Preferably, the lower surface of fly leaf is located logical inslot rigid coupling and has the slide, No. two spouts have been seted up to the inside of base, the port rigid coupling of slide has the slider, slider and No. two spout looks adaptations are sliding connection each other, the slot roll has been seted up to the lower surface of slider, the roll is connected with the ball in the slot roll, is favorable to improving the sliding effect of sliding seat.

Preferably, the side rigid coupling of sliding seat has No. two threaded cylinders, No. two threaded cylinder female connection have No. two threaded rods, the port of No. two threaded rods extends to and places in the section of thick bamboo, the port of No. two threaded rods rotates and is connected with splint, and the centre gripping that is favorable to placing the welding rifle in the section of thick bamboo is fixed, improves welding quality.

Preferably, the motor is bolted to the inner surface of the port of the support frame, the screw rod is bolted to the port of the motor, the screw rod is rotatably connected with the support frame, the slide rod is fixedly connected in the support frame, the thread block and the slide cylinder are fixedly connected to the left side and the right side of the base respectively, the thread block is matched with the screw rod, the slide cylinder is in sliding connection with the surface of the slide rod, and the quick welding of the bridge steel bars is facilitated.

The utility model has the advantages that:

1. according to the utility model, the knob is rotated manually to drive the gear to rotate, the gear and the rack are meshed with each other, the rack is matched with the sliding connection between the rack and the first sliding groove on the connecting plate to move, the movable plate is driven to slide in the movable opening while the rack moves to be close to the fixed plate, the reinforcing steel bars of the bridge bent cap steel bar framework placed between the fixed plate and the movable plate are clamped and fixed by the fixed groove, the bridge bent cap steel bar framework is suitable for clamping and fixing the reinforcing steel bars with different sizes, then the first threaded rod is rotated in the threaded cylinder by the aid of the bearing seat to push the pressing plate to move downwards, and the pressing plate further fixes the bridge reinforcing steel bars after transverse fixing in the vertical direction, so that the reinforcing steel bar fixing effect is improved, subsequent stable welding is facilitated, and the welding quality is improved.

2. The movable seat is moved, the movable seat drives the sliding plate to move synchronously, the sliding plate pulls the sliding block to slide in the second sliding groove, the sliding block slides in the second sliding groove, meanwhile, balls in the rolling groove on the lower surface of the sliding block roll in the second sliding groove, the sliding effect of the movable seat is improved, when the movable seat drives the placing cylinder to move synchronously, laser of a laser penetrates through a glass window to be aligned with a gap needing to be welded of a bridge steel bar, after the gap is aligned, a bolt rod on the movable seat is screwed, the end opening of the bolt rod extends into the groove to be in contact with the bottom surface of the groove, the bolt rod is screwed continuously, the movable seat and a base are fixed in a stable position by utilizing thread force generated between the bolt rod and the movable seat, the movable seat is prevented from moving, at the moment, a welding gun is placed into the placing cylinder, a welding head is aligned with the welding seam of the bridge steel bar, and the welding quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a partial top view of the present invention;

FIG. 4 is a cross-sectional view of the structure of the movable base of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

In the figure: 1. a support frame; 2. a fixing plate; 3. a movable plate; 4. fixing grooves; 5. pressing a plate; 6. a first threaded rod; 7. a first threaded barrel; 8. a bearing seat; 9. a knob; 10. a base; 11. a groove; 12. a gear; 13. a rack; 14. a connecting plate; 15. a first chute; 16. a movable opening; 17. a limiting block; 18. a movable seat; 19. placing the cylinder; 20. a through groove; 21. a bolt shank; 22. a laser; 23. a glass window; 24. a second threaded barrel; 25. a second threaded rod; 26. a slide plate; 27. a slider; 28. a second chute; 29. a ball bearing; 30. rolling a groove; 31. a screw rod; 32. a motor; 33. a thread block; 34. a slide bar; 35. a splint; 36. a slide cylinder; 37. a protective pad; 38. and (7) clamping blocks.

Detailed Description

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

Example one

Referring to fig. 1-4, a device for improving the welding quality of a bridge capping beam steel reinforcement framework comprises a support frame 1, a fixed plate 2 is fixedly connected with the lower surface of the port of the support frame 1, a movable plate 3 is connected with the lower surface of the port of the support frame 1 in a sliding way, the surfaces of the movable plate 3 and the fixed plate 2 are both provided with a fixed groove 4, the surface of the port of the support frame 1 is rotatably connected with a knob 9, a connecting plate 14 is bolted on the inner side surface of the port of the support frame 1, a first sliding groove 15 is arranged on the surface of the connecting plate 14, a rack 13 is connected in the first sliding groove 15 in a sliding way, a gear 12 is connected in the port of the support frame 1 in a rotating way, the gear 12 and the rack 13 are meshed with each other, the lower surface of the support frame 1 is provided with a movable opening 16, the port of the movable plate 3 is bolted with the port of the rack 13 through the movable port 16, and the port of the knob 9 extends into the support frame 1 and is bolted with the gear 12; when the device works, before the steel bars of the steel bar framework of the bridge capping beam are welded, the support frame 1 is placed at the upper end of the steel bar of the bridge to be welded, the knob 9 is rotated manually, the knob 9 drives the gear 12 to rotate in the support frame 1, the gear 12 is meshed with the rack 13 in the support frame 1 while rotating, the side end of the rack 13 is connected with the first sliding groove 15 on the connecting plate 14 in a sliding manner, the rack 13 moves in the support frame 1, the movable plate 3 is driven to slide in the movable opening 16 during the movement of the rack 13, and then make fly leaf 3 be close to fixed plate 2, cooperate fixed slot 4 fixed to carry out horizontal centre gripping to the reinforcing bar of putting into the bridge bent cap steel reinforcement skeleton between fixed plate 2 and the fly leaf 3 and fix, be applicable to the centre gripping of the bridge reinforcing bar of not unidimensional size and fix, make things convenient for follow-up welding, improve bridge bent cap steel reinforcement skeleton welding quality.

A limiting block 17 is fixedly connected to the side surface of the port of the movable plate 3 in the support frame 1, the limiting block 17 is in sliding connection with the support frame 1, and the movable port 16 is matched with the port of the movable plate 3; during operation, the side of the port of the movable plate 3 is located at the limiting block 17 of the internal connection of the support frame 1, so that the movable plate 3 is convenient to fix and limit, the movable plate 3 is prevented from falling off the support frame 1, and the movable port 16 is matched with the port of the movable plate 3, thereby facilitating the sliding of the movable plate 3 in the movable port 16.

A first threaded barrel 7 is fixedly connected to a port of the support frame 1, a first threaded rod 6 is connected to the inner thread of the first threaded barrel 7, a bearing seat 8 is rotatably connected to a lower end port of the first threaded rod 6, and a pressing plate 5 is bolted to the lower end of the bearing seat 8; during operation, rotate threaded rod 6 No. one, threaded rod 6 utilizes bearing frame 8 at the screw thread section of thick bamboo internal rotation, promotes clamp plate 5 and moves down, and clamp plate 5 further carries out the fixed of vertical direction to the bridge reinforcing bar after transversely fixing, improves the fixed effect of reinforcing bar, makes things convenient for follow-up stable welding, improves welding quality.

A base 10 is installed in the support frame 1, the upper end of the base 10 is connected with a movable seat 18 in a sliding manner, the upper surface of the movable seat 18 is fixedly connected with a placing cylinder 19, the upper surface of the base 10 is provided with a groove 11, the middle part of the base 10 is provided with a through groove 20, the upper end surface of the movable seat 18 is in threaded connection with a bolt rod 21, the port of the bolt rod 21 extends into the groove 11, the front end surface of the movable seat 18 is in bolted connection with a laser 22, the surface of the base 10 is provided with a glass window 23, and the laser 22 is located above the glass window 23; during operation, the movable seat 18 is moved, relative sliding occurs between the movable seat 18 and the base 10, in the sliding process of the movable seat 18 on the base 10, the movable seat 18 drives the placing barrel 19 to move synchronously, at the moment, laser of the laser 22 penetrates through the glass window 23 to be aligned with a gap, needing to be welded, of a bridge reinforcement, after the gap is aligned, the bolt rod 21 on the movable seat 18 is screwed, the port of the bolt rod 21 extends into the groove 11 to be in contact with the bottom surface of the groove 11, the bolt rod 21 is continuously screwed, the bolt rod 21 enables stable position fixing to be performed between the movable seat 18 and the base 10 through the thread force generated between the bolt rod 21 and the movable seat 18, the movable seat 18 is prevented from moving, and the welding quality of the bridge capping beam reinforcement framework is improved.

A sliding plate 26 is fixedly connected to the lower surface of the movable plate 3 in the through groove 20, a second sliding groove 28 is formed in the base 10, a sliding block 27 is fixedly connected to a port of the sliding plate 26, the sliding block 27 is matched with the second sliding groove 28 and is in sliding connection with the second sliding groove 28, a rolling groove 30 is formed in the lower surface of the sliding block 27, and a ball 29 is connected to the rolling groove 30 in a rolling manner; during operation, in the process that the movable seat 18 drives the sliding plate 26 to move synchronously, the sliding plate 26 pulls the sliding block 27 to slide in the second sliding groove 28, and when the sliding block 27 slides in the second sliding groove 28, the rolling balls 29 in the rolling grooves 30 on the lower surface of the sliding block 27 roll in the second sliding groove 28, so that the sliding effect of the movable seat 18 is improved, and the flexible movement of the position of the accommodating cylinder 19 is facilitated.

A second threaded cylinder 24 is fixedly connected to the side end of the movable seat 18, a second threaded rod 25 is connected to the second threaded cylinder 24 in a threaded manner, the port of the second threaded rod 25 extends into the placing cylinder 19, and a clamping plate 35 is rotatably connected to the port of the second threaded rod 25; during operation, will weld the rifle and put into and place a section of thick bamboo 19, No. two threaded rods 25 of 24 ports of rotatory No. two threaded cylinders, No. two threaded rods 25 utilize the screw thread power to placing the inside extension of a section of thick bamboo 19, and at this in-process, the threaded rod promotes splint 35 and hugs closely with the surface of welding rifle, fixes the welding rifle in the inside of placing a section of thick bamboo 19 steadily, and the soldered connection just aims at the welded joint of bridge reinforcing bar this moment, is convenient for improve bridge bent cap steel skeleton welding quality.

A motor 32 is bolted on the inner surface of the port of the support frame 1, a screw rod 31 is bolted on the port of the motor 32, the screw rod 31 is rotatably connected with the support frame 1, a slide rod 34 is fixedly connected in the support frame 1, a thread block 33 and a slide cylinder 36 are fixedly connected to the left side and the right side of the base 10 respectively, the thread block 33 is matched with the screw rod 31, and the slide cylinder 36 is in sliding connection with the surface of the slide rod 34; during operation, the motor 32 is turned on, the motor 32 drives the screw rod 31 to rotate in the support frame 1, the screw rod 31 rotates and also rotates in the thread block 33 on the side face of the base 10, the sliding cylinder 36 and the sliding rod 34 are matched to slide, the position is limited, the screw force generated by rotation between the screw rod 31 and the thread block 33 pushes the base 10 to move above the bridge steel bar, the welding gun is convenient to weld quickly, and the working efficiency is improved.

Example two

Referring to fig. 5, in a first comparative example, in another embodiment of the present invention, a protection pad 37 is clamped in a fixed groove 4 on the surfaces of the fixed plate 2 and the movable plate 3, a clamping block 38 is fixedly connected to the outer side surface of the protection pad 37, a clamping groove adapted to the clamping block 38 is formed in the bottom surface of the fixed groove 4, and the protection pad 37 is an elastic rubber pad; during operation, carry out the joint with the fixture block 38 of protection pad 37 outside surface and the draw-in groove of 4 bottom surfaces of fixed slot, make protection pad 37 stably be connected with fixed plate 2 and fly leaf 3, and then make protection pad 37 stably be located fixed slot 4, when utilizing fixed plate 2 and fly leaf 3 to carry out bridge deck slab steel reinforcement skeleton and carry out the centre gripping, protection pad 37 can effectual reduction reinforcing bar and fixed plate 2 and the loss between the fly leaf 3.

The working principle is that before the steel bars of the bridge capping beam steel bar framework are welded, the support frame 1 is placed at the upper end of the bridge steel bar to be welded, the knob 9 is rotated manually, the knob 9 drives the gear 12 to rotate, the gear 12 and the rack 13 are meshed with each other, the rack 13 is matched with the sliding connection between the rack 13 and the first sliding groove 15 on the connecting plate 14, the rack 13 moves, the rack 13 drives the movable plate 3 to slide in the movable opening 16 while moving, the movable plate is close to the fixed plate 2, the fixed groove 4 is used for clamping and fixing the steel bars of the bridge capping beam steel bar framework placed between the fixed plate 2 and the movable plate 3, the screw bars 6 with different sizes are rotated, the first screw bar 6 rotates in the screw cylinder by using the bearing seat 8 to push the pressing plate 5 to move downwards, and the pressing plate 5 further fixes the bridge steel bars after transverse fixing in the vertical direction, the fixing effect of the steel bars is improved, the subsequent stable welding is facilitated, and the welding quality is improved; then, the movable seat 18 is moved, the movable seat 18 drives the sliding plate 26 to synchronously move, the sliding plate 26 pulls the sliding block 27 to slide in the second sliding groove 28, the sliding block 27 slides in the second sliding groove 28, simultaneously, the balls 29 in the rolling grooves 30 on the lower surface of the sliding block 27 roll in the second sliding groove 28, the sliding effect of the movable seat 18 is improved, when the movable seat 18 drives the placing cylinder 19 to synchronously move, laser of a laser 22 penetrates through a glass window 23 to be aligned with a gap needing welding of bridge reinforcing steel bars, after the gap is aligned, the bolt rod 21 on the movable seat 18 is screwed, the port of the bolt rod 21 extends into the groove 11 to be contacted with the bottom surface of the groove 11, the bolt rod 21 is continuously screwed, the movable seat 18 and the base 10 are stably fixed in position by utilizing thread force generated between the bolt rod 21 and the movable seat 18, the movable seat 18 is prevented from moving, at the moment, a welding gun is placed into the placing cylinder 19, the second threaded rod 25 at the port of the second threaded cylinder 24 is rotated, no. two threaded rods 25 utilize screw thread power to placing the inside extension of a section of thick bamboo 19, in this process, the threaded rod promotes splint 35 and welding gun's surface and hugs closely, it fixes the welding gun in the inside of placing a section of thick bamboo 19 to stabilize, the soldered joint just aims at the welded joint of bridge reinforcing bar this moment, open motor 32, motor 32 drives lead screw 31 at 1 internal rotation of support frame, also at the screw block 33 internal rotation of the side of base 10 in lead screw 31 pivoted, slide and position are injectd between the smooth section of thick bamboo 36 of cooperation and the slide bar 34, the screw thread power that the rotation produced between lead screw 31 and the screw block 33 promotes base 10 and removes in bridge reinforcing bar top, the fast weld of the welding gun of being convenient for, the welding quality is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides an improve bridge bent cap framework of steel reinforcement welding quality device which characterized in that: the device comprises a support frame (1), a fixed plate (2) is fixedly connected to the lower surface of a port of the support frame (1), a movable plate (3) is connected to the lower surface of the port of the support frame (1) in a sliding manner, fixed grooves (4) are formed in the surfaces of the movable plate (3) and the fixed plate (2), a knob (9) is connected to the surface of the port of the support frame (1) in a rotating manner, a connecting plate (14) is connected to the inner side surface of the port of the support frame (1) in a bolting manner, a first sliding groove (15) is formed in the surface of the connecting plate (14), a rack (13) is connected to the first sliding groove (15) in a sliding manner, a gear (12) is connected to the inner side surface of the port of the support frame (1) in a rotating manner, the gear (12) is meshed with the rack (13), a movable opening (16) is formed in the lower surface of the support frame (1), and the port of the movable opening (3) is connected with the rack (13) in a bolting manner, the port of the knob (9) extends to the inside of the support frame (1) and is bolted with the gear (12).

2. The device for improving the welding quality of the bridge capping beam steel reinforcement framework according to the claim 1, is characterized in that: the port side of fly leaf (3) is located the inside rigid coupling of support frame (1) and is had stopper (17), be sliding connection between stopper (17) and support frame (1), the port looks adaptation of activity mouth (16) and fly leaf (3).

3. The device for improving the welding quality of the bridge capping beam steel reinforcement framework, according to claim 2, is characterized in that: the port of support frame (1) rigid coupling has a screw thread section of thick bamboo (7), the internal thread of a screw thread section of thick bamboo (7) is connected with threaded rod (6) No. one, the lower extreme port of a threaded rod (6) rotates and is connected with bearing frame (8), the lower extreme bolt of bearing frame (8) has clamp plate (5).

4. The device for improving the welding quality of the bridge capping beam steel reinforcement framework according to the claim 3, is characterized in that: install base (10) in support frame (1), the upper end sliding connection of base (10) has sliding seat (18), the upper surface rigid coupling of sliding seat (18) has the section of thick bamboo of placing (19), the upper surface of base (10) is seted up flutedly (11), logical groove (20) have been seted up at the middle part of base (10), the upper end surface threaded connection of sliding seat (18) has shank of bolt (21), the port of shank of bolt (21) extends to in recess (11), the front end surface bolt of sliding seat (18) has laser instrument (22), the surface mounting of base (10) has glass window (23), laser instrument (22) are located the top of glass window (23).

5. The device for improving the welding quality of the bridge capping beam steel reinforcement framework, according to claim 4, is characterized in that: the lower surface of fly leaf (3) is located logical groove (20) interior rigid coupling and has slide (26), No. two spout (28) have been seted up to the inside of base (10), the port rigid coupling of slide (26) has slider (27), slider (27) and No. two spout (28) looks adaptations and be sliding connection each other, slot rolling (30) have been seted up to the lower surface of slider (27), roll in slot rolling (30) and be connected with ball (29).

6. The device for improving the welding quality of the bridge capping beam steel reinforcement framework, according to claim 4, is characterized in that: the side rigid coupling of sliding seat (18) has a No. two screw thread section of thick bamboo (24), No. two screw thread section of thick bamboos (24) female connection have No. two threaded rod (25), the port of No. two threaded rod (25) extends to and places in a section of thick bamboo (19), the port of No. two threaded rod (25) is rotated and is connected with splint (35).

7. The device for improving the welding quality of the bridge capping beam steel reinforcement framework, according to claim 4, is characterized in that: support frame (1) port internal surface bolt has motor (32), the port bolt of motor (32) has lead screw (31), be connected for rotating between lead screw (31) and support frame (1), the rigid coupling has slide bar (34) in support frame (1), the left and right sides of base (10) rigid coupling respectively has screw block (33) and slide cartridge (36), screw block (33) and lead screw (31) looks adaptation, slide cartridge (36) will with slide bar (34) surface and be sliding connection each other.