CN215091472U

CN215091472U - Steel box girder U rib welding equipment

Info

Publication number: CN215091472U
Application number: CN202120574818.XU
Authority: CN
Inventors: 王姗; 管定中; 宋养猛; 李冲
Original assignee: Nanjing China Railway Bridge Machinery Engineering Co Ltd
Current assignee: Nanjing China Railway Bridge Machinery Engineering Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-10
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a field of bridge building discloses a steel box girder U rib welding equipment, including welded platform, the both sides of welded platform's one end all are equipped with adjusting device, adjusting device is connected with welder, two through adjusting the pole welder's rifle head sets up downwards towards the welded platform outside and slope respectively, the welded platform bottom is equipped with a plurality of gyro wheels, the welded platform both sides are equipped with multiunit sliding connection device, welded platform passes through sliding connection device and rotates towards the welded platform both sides and is connected with the depended wheel. Has the following effects: when the welding platform works in the U-shaped rib and the bottom plate, the welding gun can adjust the angle and the position of the gun head of the welding gun through the adjusting device, so that the welding problem is solved in time, and the welding quality is improved.

Description

Steel box girder U rib welding equipment

Technical Field

The application relates to the field of bridge construction, in particular to a steel box girder U rib welding device.

Background

The steel box girder is the important component part of long span bridge bearing structure, and the steel box girder main part is formed by bottom plate and U rib welding, and the steel box girder is as bearing structure, and is very strict to the welding requirement of U rib, and manual welding work volume is too big, and welding efficiency is low, consequently needs the welding equipment of a steel box girder U rib, promotes welding efficiency when guaranteeing welding quality.

At present, the patent with the granted publication number of CN204639387U discloses a U-rib welding device and a U-rib welding system, which comprises a moving platform, a welding mechanism and a driving mechanism, wherein the moving platform can move in a U-rib and a bottom plate, the welding mechanism comprises two welding guns symmetrically arranged, the welding guns are positioned at the front end of the moving platform, the heads of the two welding guns are respectively positioned at two sides of the moving platform and used for welding corner joints at two sides inside the U-rib, the welding guns adjust the heads of the welding guns through a corner joint tracking mechanism and a controller, which are abutted against the corner joints, and the driving mechanism is used for driving the moving platform to move.

With respect to the related art in the above, the inventors have considered that it is inconvenient to adjust the angle and position of the welding torch from the outside when the moving platform is moved to the inside of the U-rib and the base plate to perform the welding work.

SUMMERY OF THE UTILITY MODEL

In order to timely adjust welding gun when welding equipment works, the application provides a steel box girder U rib welding equipment.

The application provides a pair of steel box girder U rib welding equipment adopts following technical scheme to obtain:

a welding device for U ribs of a steel box girder comprises a welding platform, wherein adjusting devices are arranged on two sides of one end of the welding platform, the adjusting devices are connected with welding guns through adjusting rods, the heads of the two welding guns are respectively arranged towards two sides of the welding platform in the width direction and obliquely downwards, a plurality of idler wheels are arranged at the bottom of the welding platform, a plurality of groups of sliding connection devices are arranged on two sides of the welding platform, and the welding platform is rotatably connected with idler wheels towards two sides of the welding platform through the sliding connection devices;

adjusting device includes a servo motor, a servo motor passes through the fixed plate setting on welded platform, a servo motor's output passes the fixed plate and is connected with the action wheel, it rotates to connect on the fixed plate to adjust the pole, it is connected with from the driving wheel to adjust the pole to pass the fixed plate, the action wheel with from the meshing of driving wheel.

Through the technical scheme, welding platform carries out weldment work between U rib and bottom plate, the gyro wheel is used for driving welding platform and gos forward, adjusting device is used for adjusting welder's angle, two welder rifle heads separately set up, two inconsistent needs welded corner joints with the bottom plate towards U rib respectively, first servo motor rotates, the action wheel that drives first servo motor output rotates, the action wheel drives from the driving wheel rotation, make the regulation pole can be at certain angle internal rotation, the depended wheel is used for inconsistent with two curb plates of U rib when welding platform gos forward, inject welding platform direction of advancing, make welding platform more stable, thereby improve welding quality.

Preferably: the adjusting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is rotatably connected to the fixing plate, one end, away from the fixing plate, of the first connecting rod is oppositely provided with a support arm, the second connecting rod is rotatably connected between the two support arms through a rotating shaft, the first connecting rod is fixed with a second servo motor on the outer wall close to the second connecting rod, the output end of the second servo motor is coaxially connected with the rotating shaft, and one end of the second connecting rod is far away from the first connecting rod and is connected with a welding gun.

Through above-mentioned technical scheme, adjust the pole and divide into head rod and second connecting rod, the second connecting rod passes through the axis of rotation and articulates on the head rod, and second servo motor rotates, can drive the axis of rotation and rotate, fixes and to rotate at the epaxial second connecting rod of axis of rotation and can rotate on the head rod to realized controlling and adjusting welder's angle and position by second servo motor.

Preferably: the one end of adjusting the pole and keeping away from welded platform is connected with solid fixed ring, gu fixed ring keeps away from the intra-annular of adjusting pole one side and is equipped with the slide, be equipped with the spout along welder length direction on welder's the outer wall, slide sliding connection is in the spout, welder wears to establish in the fixed ring, it has seted up the cavity to adjust the pole near the solid fixed ring anchor ring of solid fixed ring's one end perpendicular to, welder keeps away from and is equipped with the rack along welder length direction on the outer wall of spout one side, it is equipped with third servo motor on being close to solid fixed ring's the outer wall to adjust the pole, third servo motor's output passes to adjust the pole and has connected the gear in the cavity, wheel and rack toothing.

Through the technical scheme, the welding gun is connected in the fixed ring in a sliding mode through the sliding way and the sliding groove, when the third servo motor rotates, the gear at the output end of the third servo motor can drive the rack on the welding gun to move, so that the welding gun can slide in the fixed ring, and the function of controlling the telescopic gun head of the welding gun through the third servo motor is realized.

Preferably: the sliding connection device comprises a sliding rail and a sliding block, the sliding rail is fixed on the two sides of the welding platform and perpendicular to the length direction of the welding platform, the sliding block is connected to the sliding rail in a sliding mode, a locking groove is formed in the top of the sliding rail, limiting blocks are arranged at the two ends of the locking groove along the length direction, a locking bolt used for being connected with the locking groove in a clamping mode is connected to the top end of the sliding block in a threaded mode, and the idler wheel rotates to be connected to one end of the sliding block, facing the welding platform, of the sliding block.

Through above-mentioned technical scheme, the slider can slide on the slide rail, and the stopper that locks the groove both ends can hinder the locking bolt, prevents that the slider from derailing from the slide rail, screws up the locking bolt and makes the locking bolt conflict can fix the slider on the slide rail locking groove bottom, and the position of slider on the slide has decided the position that depends on wheel and has extended welding platform, and adjustable leans on the wheel to make welding platform can be applicable to the welding of the U rib of more different models.

Preferably: and scale marks are arranged on two sides of the sliding block along the length direction.

Through the technical scheme, when the position of the welding platform extending out of the idler wheel is adjusted, the distance extending out of the idler wheel can be intuitively known through the scale marks on the sliding block, and the idler wheel is convenient to adjust and set.

Preferably: and a plurality of image collectors are embedded in the side surface of one end, close to the welding gun, of the welding platform.

Through above-mentioned technical scheme, because welded platform carries out weldment work between U rib and bottom plate, consequently want to observe inside real-time welding condition from the outside to be more difficult, consequently the multi-angle is provided with image collector on welded platform for look over the inside welding condition of U rib, when welding goes wrong, can make timely adjustment through a series of regulations butt welder, improve welding quality.

Preferably: welding platform is equipped with the shovel board in one side of welding platform advancing direction is followed to the gyro wheel, the shovel board slope sets up downwards, the shovel board both sides are provided with the separator along welding platform length direction slope, the welding platform bottom is fixed with the balancing weight at the gyro wheel inboard.

Through above-mentioned technical scheme, the shovel board is used for cleaing away the debris and the welding slag of gyro wheel advancing direction at welded platform during operation, and the separator plate pushes debris and welding slag to the both sides of gyro wheel, has reduced the gyro wheel and has rolled debris and lead to the crooked condition of welded platform to take place, and the balancing weight can improve welded platform's stability on the one hand, and on the other hand has increased the pressure between shovel board and the gyro wheel working face for the clearance effect of shovel board is better.

Preferably: the welding gun is connected with a welding gun cable, a limiting plate is arranged at the top of the welding platform, limiting holes are formed in the two ends of the limiting plate along the length direction, and the welding gun cable penetrates through the limiting holes.

Through the technical scheme, the welding gun cable is arranged in the limiting hole of the limiting plate in a penetrating mode and fixed above the welding platform, the welding gun cable can be effectively protected, and when the welding platform moves forward, the welding gun cable cannot obstruct the welding platform.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the welding platform works between the U rib and the bottom plate, an operator can adjust the welding gun in time through the adjusting device, so that the welding problem is solved, and the welding quality is improved;

2. the depended wheels on the side edges of the welding platform can be adjusted, so that the welding platform can be suitable for more welding operation environments, and the applicability of the welding platform is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a roller and a shovel plate according to an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic structural diagram of an adjusting rod and a connecting device according to an embodiment of the present application.

FIG. 5 is a schematic view of a torch and retaining ring in accordance with an embodiment of the present invention.

Reference numerals: 1. welding a platform; 2. an adjustment device; 201. a first servo motor; 202. a driving wheel; 203. a driven wheel; 3. adjusting a rod; 301. a first connecting rod; 302. a second connecting rod; 303. a support arm; 304. a rotating shaft; 4. a welding gun; 5. a roller; 6. a sliding connection device; 601. a slide rail; 602. a slider; 7. a idler wheel; 8. a fixing plate; 9. a second servo motor; 10. a fixing ring; 11. a slideway; 12. a chute; 13. a cavity; 14. a rack; 15. a third servo motor; 16. a gear; 17. a locking groove; 171. a limiting block; 18. a locking bolt; 19. scale lines; 20. an image collector; 21. a shovel plate; 22. a separation plate; 23. a balancing weight; 24. a welding gun cable; 25. a limiting plate; 26. and a limiting hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The U-rib welding equipment for the steel box girder is disclosed by the embodiment of the application. As shown in fig. 1, the welding equipment for the U-shaped ribs of the steel box girder comprises a welding platform 1, rollers 5 are arranged at the bottom of the welding platform 1, the rollers 5 are used for driving the welding platform 1 to move in the U-shaped ribs and the bottom plate, adjusting devices 2 are arranged on two sides of one end of the advancing direction of the welding platform 1, the adjusting devices 2 are connected with welding guns 4 through adjusting rods 3, the welding guns 4 are used for welding the corner seams of the U-shaped ribs, the adjusting devices 2 can adjust the positions and the angles of the welding guns 4, multiple groups of sliding connection devices 6 are arranged on two sides of the welding platform 1, idler wheels 7 are rotatably connected on the sliding connection devices 6, when the welding platform 1 works in the U-shaped ribs, the idler wheels 7 are in contact with two side plates of the U-shaped ribs to limit the advancing tracks of the welding platform 1, the stability of the welding equipment is improved, and the welding quality is improved.

As shown in fig. 2, a counterweight 23 is fixed on the inner side of a roller 5 at the bottom of a welding platform 1, a shovel 21 is arranged at one side of the roller 5 along the advancing direction of the welding platform 1 at the bottom of the welding platform 1, the shovel 21 is arranged in an arc shape and inclines downwards, two sides of the shovel 21 are respectively provided with a separating plate 22 along the length direction of the welding platform 1, the roller 5 is used for driving the welding platform 1 to rotate, the shovel 21 is in an arc shape and extends from the bottom of the welding platform 1 to the working surface of the roller 5, when the welding platform 1 advances, sundries and welding slag in front of the roller 5 can be shoveled, the situation that the welding platform 1 is inclined due to the fact that the roller 5 rolls the sundries and the welding slag is reduced, thereby affecting the welding quality, the shovel 21 is arranged in an arc shape, the angle between the shovel 21 and the working surface of the roller 5 is reduced, the impurity removing effect of the shovel 21 is improved, and the counterweight 23 can improve the stability of the welding platform 1, meanwhile, the pressure between the shovel plate 21 and the working surface of the roller 5 is increased, so that the shovel plate 21 is more stable in working and better in cleaning effect.

As shown in fig. 1 and 3, the sliding connection device 6 includes a sliding rail 601 and a sliding block 602, the sliding rail 601 is disposed on two sides of the welding platform 1 perpendicular to the length direction of the welding platform 1, the sliding block 602 is slidably connected to the sliding rail 601, a locking groove 17 is disposed on the top of the sliding rail 601, two ends of the locking groove 17 along the length direction are provided with a limiting block 171, a locking bolt 18 for being clamped with the locking groove 17 is connected to the sliding block 602 by a thread, and a idler wheel 7 is rotatably connected to one end of the sliding block 602 facing the outside of the welding platform 1; the distance that the idler wheel 7 extends out welding platform 1 can be adjusted to slip slider 602, and stopper 171 can prevent with locking bolt 18 inconsistent that slider 602 breaks away from slide rail 601, screws up locking bolt 18 and can lock slider 602 on slide rail 601, and adjustable idler wheel 7 for welding platform 1 can be applicable to the welding of the U rib of more kinds of model, has improved welding equipment's stability and suitability.

As shown in fig. 3, the scale marks 19 are arranged on the two sides of the sliding block 602 in the length direction, and when the distance that the idler wheel 7 extends out of the welding platform 1 is adjusted, the length that the idler wheel 7 extends out can be visually known through the scale marks 19, so that the adjustment and setting of the idler wheels 7 on the welding platform 1 are facilitated, and the time spent on adjusting the idler wheels 7 is saved.

As shown in fig. 1 and 4, the fixing plates 8 are connected to two sides of one end of the welding platform 1 in the advancing direction along the width direction of the welding platform 1, the adjusting rod 3 is rotatably connected to the fixing plates 8, the end of the adjusting rod 3 away from the fixing plates 8 is connected to the welding gun 4, the adjusting device 2 is arranged on one side of the adjusting rod 3 on the fixing plates 8, the adjusting device 2 comprises a first servo motor 201, the first servo motor 201 is arranged on the fixing plates 8, the output end of the first servo motor 201 penetrates through the fixing plates 8 to be connected with a driving wheel 202, the adjusting rod 3 penetrates through the fixing plates 8 and penetrates through a driven wheel 203, and the driving wheel 202 is meshed with the driven wheel 203; when the first servo motor 201 rotates, the driving wheel 202 is driven to rotate, the driven wheel 203 meshed with the driving wheel 202 drives the adjusting rod 3 to rotate, and the function that the first servo motor 201 controls the welding gun 4 on the adjusting rod 3 to rotate through the adjusting device 2 is achieved.

As shown in fig. 4, the adjusting lever 3 includes a first connecting rod 301 and a second connecting rod 302, the first connecting rod 301 is rotatably connected to the fixing plate 8, one end of the first connecting rod 301 away from the fixing plate 8 is oppositely provided with a support arm 303, one end of the second connecting rod 302 is provided with a rotating shaft 304 and is rotatably connected between the two support arms 303 of the first connecting rod 301 through the rotating shaft 304, the first connecting rod 301 is fixed with a second servo motor 9 on the side surface of the support arm 303, and the output end of the second servo motor 9 is coaxially connected with the rotating shaft 304; when the second servo motor 9 rotates, the second connecting rod 302 can be driven by the rotating shaft 304 to rotate on the first connecting rod 301, so that the adjusting rod 3 has certain adjusting capacity, and the flexibility of the adjusting rod 3 is improved.

As shown in fig. 5, a fixing ring 10 is disposed at one end of the second connecting rod 302 away from the first connecting rod 301, a slide 11 is disposed in the ring at one side of the fixing ring 10 away from the second connecting rod 302, a slide groove 12 along the length direction of the welding gun 4 is disposed on the outer wall of the welding gun 4, and the welding gun 4 can be slidably connected in the fixing ring 10 through the slide groove 12 and the slide 11.

As shown in fig. 4 and 5, a cavity 13 perpendicular to the annular surface of the fixed ring 10 is formed in the position where the second connecting rod 302 is connected with the fixed ring 10, a third servo motor 15 is fixed on the outer wall of the second connecting rod 302 close to the fixed ring 10, the output end of the third servo motor 15 penetrates through the second connecting rod 302 and is connected with a gear 16 in the cavity 13, a rack 14 is arranged on the outer wall of the welding gun 4 on the side far away from the slideway 11 along the length direction of the welding gun 4, the welding gun 4 is arranged in the fixed ring 10 in a penetrating manner, and the rack 14 is meshed with the gear 16; when the third servo motor 15 rotates, the gear 16 drives the rack 14 to move, so that the welding gun 4 can slide in the fixing ring 10, the position of the welding gun 4 in the fixing ring 10 can be controlled through the third servo motor 15, and the flexibility of the welding gun 4 is further improved.

As shown in fig. 1, a plurality of image collectors 20 for collecting an angle seam image are embedded on two sides of a welding platform 1 along the width direction, the image collectors 20 are respectively arranged at a position of the welding platform 1 close to a gun head of a welding gun 4 and a position of the welding platform 1 close to an angle seam of a U-shaped rib, the welding platform 1 works between the U-shaped rib and a bottom plate, so that the internal welding condition is not convenient to observe, the image collectors 20 can timely reflect the welding condition of the welding gun 4 between the U-shaped rib and the bottom plate and the welding condition after welding, an operator can timely adjust the welding gun 4, a better welding effect is achieved, and the welding quality is improved.

As shown in fig. 1, the welding gun 4 is connected with the welding gun cable 24, the top of the welding platform 1 is provided with the limiting plate 25, the limiting plate 25 is provided with the limiting hole 26 along the two ends of the length direction, the welding gun cable 24 is arranged in the limiting hole 26 in a penetrating manner, the limiting hole 26 can fix the welding gun cable 24 above the welding platform 1, the welding gun cable 24 is effectively protected, and the welding gun cable 24 is also guaranteed not to generate an obstruction effect when the welding platform 1 works.

The implementation principle of the steel box girder U rib welding equipment in the embodiment of the application is as follows: when the U-rib welding is carried out, an operator firstly sets idler wheels 7 on two sides of a welding platform 1 through a sliding connection device 6, so that the idler wheels 7 can be abutted against two side plates of the U-rib, the idler wheels 5 drive the welding platform 1 to enter the U-rib and the bottom plate, after the idler wheels enter the inner side of the welding platform 1, the condition of the corner seam inside the welding gun 4 and the U-rib can be observed through an image collector 20, the direction of the gun head of the welding gun 4 can be adjusted through an adjusting device 2, a second servo motor 9 is controlled to rotate a second connecting rod 302 to adjust the position of the gun head of the welding gun 4, the telescopic condition of the gun head of the welding gun 4 can be adjusted through a third servo motor 15, the welding gun 4 reaches a proper welding position through a series of adjustment, the welding work is started, the idler wheels 5 drive the welding platform 1 to move, and the welding gun 4 carries out the welding work on the corner seam between the U-rib and the bottom plate, the shovel plate 21 and the separating plate 22 at the bottom of the welding platform 1 can push away the sundries and the welding slag on the bottom plate, so that the stable movement of the roller 5 is ensured, and the smooth proceeding of the welding work is ensured.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides a steel box girder U rib welding equipment which characterized in that: the welding platform comprises a welding platform (1), adjusting devices (2) are arranged on two sides of one end of the welding platform (1), the adjusting devices (2) are connected with welding guns (4) through adjusting rods (3), the heads of the two welding guns (4) are respectively arranged towards two sides of the welding platform (1) along the width direction and obliquely downwards, a plurality of idler wheels (5) are arranged at the bottom of the welding platform (1), a plurality of groups of sliding connection devices (6) are arranged on two sides of the welding platform (1), and the welding platform (1) is rotatably connected with idler wheels (7) towards two sides of the welding platform (1) through the sliding connection devices (6);

adjusting device (2) include first servo motor (201), first servo motor (201) set up through fixed plate (8) and set up on welding platform (1), the output of first servo motor (201) passes fixed plate (8) and is connected with action wheel (202), it connects on fixed plate (8) to adjust pole (3) rotation, it is connected with from driving wheel (203) to adjust pole (3) to pass fixed plate (8), action wheel (202) and mesh from driving wheel (203).

2. The steel box girder U rib welding equipment of claim 1, wherein: adjust pole (3) and include head rod (301) and second connecting rod (302), head rod (301) are rotated and are connected on fixed plate (8), the one end opposition that fixed plate (8) were kept away from in head rod (301) is equipped with support arm (303), second connecting rod (302) are rotated through axis of rotation (304) and are connected two between support arm (303), head rod (301) are fixed with second servo motor (9) on the outer wall that is close to second connecting rod (302), the output and axis of rotation (304) coaxial coupling of second servo motor (9), head rod (301) one end is kept away from in second connecting rod (302) and welder (4) are connected.

3. The steel box girder U rib welding equipment of claim 1, wherein: the welding rod adjusting mechanism is characterized in that one end, far away from a welding platform (1), of the adjusting rod (3) is connected with a fixing ring (10), the fixing ring (10) is provided with a slide way (11) far away from the ring on one side of the adjusting rod (3), the outer wall of the welding gun (4) is provided with a slide groove (12) along the length direction of the welding gun (4), the slide way (11) is connected in the slide groove (12) in a sliding mode, the welding gun (4) penetrates through the fixing ring (10), one end, close to the fixing ring (10), of the adjusting rod (3) is perpendicular to the ring surface of the fixing ring (10) and provided with a cavity (13), the outer wall, far away from one side of the slide groove (12), of the welding gun (4) is provided with a rack (14) along the length direction of the welding gun (4), the outer wall, close to the fixing ring (10), of the adjusting rod (3) is provided with a third servo motor (15), the output end of the third servo motor (15) penetrates through the adjusting rod (3) and is connected with a gear (16) in the cavity (13), the gear (16) is meshed with the rack (14).

4. The steel box girder U rib welding equipment of claim 1, wherein: sliding connection device (6) include slide rail (601) and slider (602), slide rail (601) are fixed in the both sides of welding platform (1) and perpendicular to welding platform (1) length direction, slider (602) sliding connection is on slide rail (601), locking groove (17) has been seted up at slide rail (601) top, locking groove (17) are equipped with stopper (171) along length direction's both ends, slider (602) top threaded connection has and is used for locking bolt (18) of locking groove (17) joint, depended wheel (7) rotate to be connected in slider (602) towards the one end in the welding platform (1) outside.

5. The steel box girder U rib welding equipment of claim 4, wherein: and scale marks (19) are arranged on two sides of the sliding block (602) along the length direction.

6. The steel box girder U rib welding equipment of claim 1, wherein: the side surface of one end, close to the welding gun (4), of the welding platform (1) is embedded with a plurality of image collectors (20).

7. The steel box girder U rib welding equipment of claim 1, wherein: welding platform (1) is equipped with shovel board (21) in gyro wheel (5) along one side of welding platform (1) direction of advance, shovel board (21) slope sets up downwards, shovel board (21) both sides are provided with separator (22) along welding platform (1) length direction slope, welding platform (1) bottom is fixed with balancing weight (23) in gyro wheel (5) inboard.

8. The steel box girder U rib welding equipment of claim 1, wherein: welder (4) are connected with welder cable (24), the top of welding platform (1) is equipped with limiting plate (25), limiting hole (26) have all been seted up at limiting plate (25) along length direction's both ends, welder cable (24) are worn to establish in limiting hole (26).