Automatic welding workstation for small box girder framework

Abstract

The utility model provides a kind of small box girder framework automatic welding workstation, belong to small box girder framework technical field. Including longitudinal reinforcement feeding device, stirrup longitudinal reinforcement binding storehouse, stirrup material pushing and arranging device and framework traction device that are sequentially arranged, and stirrup material pushing and arranging device outside is equipped with welding device;Longitudinal reinforcement feeding device includes rack, rack is provided with fixed plate, multiple first mounting holes are opened in fixed plate, and first feeding mechanism is further equipped on rack;Stirrup longitudinal reinforcement binding storehouse includes storehouse framework, and storehouse framework is equipped with storage cavity, and the end of storage cavity away from longitudinal reinforcement traction device is equipped with discharge port, and second feeding mechanism is further equipped in storage cavity;Stirrup material pushing and arranging device includes support, and support is equipped with material pushing mechanism and arranging mechanism;Framework traction device includes mounting seat, and first mounting bracket is slidably arranged on mounting seat along longitudinal reinforcement length direction, and first mounting bracket is equipped with fastener. It has the effect of improving the convenience of reinforcing steel framework manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of small box girder frame technology, and in particular to an automatic welding workstation for small box girder frames. Background Technology

[0002] In municipal road and bridge construction, small box girders are indispensable. To improve construction efficiency, the structural components and internal reinforcing steel cages of small box girders are usually prefabricated. The steel cage of a small box girder includes a steel reinforcement skeleton. During the fabrication of the steel reinforcement skeleton, the arranged bottom and web stirrups of the box girder need to be welded into a three-in-one stirrup. Web longitudinal bars are welded to the outside of the web stirrups of the three-in-one stirrups, and bottom longitudinal bars are welded to the inside of the bottom stirrups of the three-in-one stirrups, thus forming the steel reinforcement skeleton.

[0003] When welding the three-in-one stirrups to the web longitudinal reinforcement and the bottom slab longitudinal reinforcement to form the steel reinforcement cage of a small box girder, the three-in-one stirrups need to be arranged on an installation frame. Then, the web longitudinal reinforcement and the bottom slab stirrups are moved and passed through the three-in-one stirrups. Multiple three-in-one stirrups are then attached to the longitudinal reinforcements segment by segment before the web longitudinal reinforcement, bottom slab longitudinal reinforcement, and three-in-one stirrups can be welded together as a whole. Therefore, an automatic welding workstation for small box girder cages is needed. Utility Model Content

[0004] In view of the above problems, this utility model provides an automatic welding workstation for small box girder frames.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic welding workstation for a small box girder frame is provided, comprising a longitudinal reinforcement feeding device, a stirrup and longitudinal reinforcement combination hopper, a stirrup material feeding and placing device, and a frame traction device arranged in sequence, with a welding device provided on the outside of the stirrup material feeding and placing device. The longitudinal reinforcement feeding device includes a frame, a fixed plate on the frame, a plurality of first mounting holes for the longitudinal reinforcement to pass through, and a first feeding mechanism on the frame for intermittently feeding the longitudinal reinforcement along the length of the longitudinal reinforcement. The stirrup and longitudinal reinforcement combined silo includes a silo frame, a storage cavity for arranging and installing the three-in-one stirrups on the silo frame, a discharge port for the three-in-one stirrups to enter and exit the storage cavity at the end away from the longitudinal reinforcement traction device, and a second feeding mechanism for transporting the three-in-one stirrups is also provided in the storage cavity. The stirrup feeding and placement device includes a support, a feeding mechanism on the support for feeding the three-in-one stirrup at the discharge port and causing it to enter the support, a positioning component on the support for fixing the three-in-one stirrup, and a placement mechanism for feeding the longitudinal bar and causing it to conform to the side wall of the three-in-one stirrup. The skeleton traction device includes a mounting base, on which a first mounting frame is slidably disposed along the length of the longitudinal ribs. The mounting base is provided with a first driving member for moving the first mounting frame, and the first mounting frame is provided with fasteners for fixing the ends of each longitudinal rib.

[0006] Furthermore, the first feeding mechanism includes a feeding plate, which is slidably mounted on the frame along the longitudinal rib conveying direction. The feeding plate has multiple second mounting holes that correspond one-to-one with the first mounting holes. The feeding plate and the fixed plate are provided with first clamping members for alternatingly clamping the longitudinal ribs. The frame is provided with a second driving member for driving the feeding plate to move.

[0007] Furthermore, the storage cavity is provided with multiple guide tubes at intervals for each longitudinal rib to pass through, and the guide tubes are parallel to the conveying direction of the longitudinal rib.

[0008] Furthermore, the positioning component includes positioning plates disposed on both sides of the support. The positioning plates on both sides are provided with slots for the web stirrups to pass through. The two positioning plates are linearly slidably disposed on the support so that the slots engage with and abut against the two web stirrups. The support is provided with a third driving component for driving the positioning plates to move.

[0009] Furthermore, the fastener includes multiple mounting blocks disposed on the first mounting bracket. The mounting blocks have mounting grooves for the ends of the longitudinal ribs to pass through. A threaded hole is provided through one side of the mounting groove, and a fastening bolt for moving and abutting against the outer wall of the longitudinal rib is threaded into the threaded hole.

[0010] Furthermore, the mounting base is provided with multiple unpowered rollers at intervals along the direction of longitudinal reinforcement movement for rolling contact with the bottom of the steel reinforcement cage.

[0011] The beneficial effects of this utility model are as follows: one end of multiple longitudinal bars is fixed on the skeleton traction device. The longitudinal bars can be intermittently transferred through the longitudinal bar feeding device and the skeleton traction device. During the transfer process, the three-in-one stirrups can be installed one by one in each section of the longitudinal bars through the stirrup and longitudinal bar combined hopper. The three-in-one stirrups can be moved one by one through the stirrup material placement device and each longitudinal bar can be attached to the side wall of the three-in-one stirrup. The three-in-one stirrups can be welded to the longitudinal bars by the welding device, which has the effect of improving the convenience of steel skeleton manufacturing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0013] Figure 2 This is a schematic diagram of the longitudinal reinforcement feeding device of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0014] Figure 3This is a schematic diagram of the feeding plate of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0015] Figure 4 This is a schematic diagram of the stirrup and longitudinal reinforcement combined with the silo of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0016] Figure 5 This is a schematic diagram of the stirrup feeding and placement device of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0017] Figure 6 This is a front view structural diagram of the stirrup feeding and placement device of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0018] Figure 7 This is a schematic diagram from another perspective of the stirrup feeding and placement device of an automatic welding workstation for a small box girder frame according to an embodiment of this application.

[0019] Figure 8 This is a schematic diagram of the skeleton traction device of an automatic welding workstation for small box girder skeleton according to an embodiment of this application.

[0020] Figure 9 for Figure 8 A magnified view of part A in the diagram.

[0021] Among them, 1. Longitudinal rib feeding device; 11. Frame; 12. Fixing plate; 121. First mounting hole; 13. Feeding plate; 131. Second mounting hole; 14. First clamping component; 141. Fixing strip; 142. Clamping block; 143. Hydraulic drive cylinder; 2. Stirrup and longitudinal rib combined hopper; 21. Hopper frame; 22. Storage cavity; 221. Discharge port; 23. Feeding screw; 24. Guide tube; 3. Stirrup feeding and placing device; 31. Support; 32. Feeding mechanism; 321. Pneumatic gripper; 322. Slide; 323. Mounting rod 33. Positioning component; 331. Positioning plate; 3311. Slot; 332. Third driving component; 34. Settling mechanism; 341. Second mounting bracket; 3411. Third mounting hole; 342. Third mounting bracket; 343. Sixth driving component; 344. Seventh driving component; 35. Second clamping component; 36. Eighth driving component; 4. Frame traction device; 41. Mounting base; 42. First mounting bracket; 43. Fastener; 431. Mounting block; 4311. Mounting groove; 4312. Threaded hole; 44. Unpowered roller; 5. Welding device. Detailed Implementation

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This application discloses an automatic welding workstation for a small box girder frame, referring to... Figure 1 It includes a longitudinal reinforcement feeding device 1, a stirrup and longitudinal reinforcement bonding hopper 2, a stirrup material feeding and placing device 3, and a skeleton traction device 4 arranged in sequence. A welding device 5 is provided on the outside of the stirrup material feeding and placing device 3.

[0024] In this embodiment, one end of multiple longitudinal bars is fixed to the skeleton traction device 4. The longitudinal bars can be intermittently transferred through the longitudinal bar feeding device 1 and the skeleton traction device 4. During the transfer process, the three-in-one stirrups can be installed one by one in each section of the longitudinal bars through the stirrup and longitudinal bar combination hopper 2. The stirrup material placement device 3 can move the three-in-one stirrups one by one and make each longitudinal bar fit against the side wall of the three-in-one stirrup. The welding device 5 can then weld the three-in-one stirrups and the longitudinal bars together. This improves the ease of manufacturing the steel skeleton.

[0025] Reference Figure 2 and Figure 3 The longitudinal reinforcement feeding device 1 includes a frame 11, on which a fixing plate 12 is provided. The fixing plate 12 has multiple first mounting holes 121 for the longitudinal reinforcement to pass through. The frame 11 is also provided with a first feeding mechanism for intermittently feeding the longitudinal reinforcement along its length.

[0026] In this embodiment, after passing multiple longitudinal ribs through the first mounting holes 121, the ends of the longitudinal ribs can be fixed to the frame traction device 4. The positions of the longitudinal ribs can be positioned through the multiple first mounting holes 121 to ensure that the longitudinal ribs do not deviate during the transfer process.

[0027] Reference Figure 4 The stirrup and longitudinal reinforcement combined hopper 2 includes a hopper frame 21. The hopper frame 21 is provided with a storage cavity 22 for arranging and installing the three-in-one stirrups. The storage cavity 22 is provided with a discharge port 221 for the three-in-one stirrups to enter and exit at one end away from the longitudinal reinforcement traction device. The storage cavity 22 is also provided with a second feeding mechanism for transporting the three-in-one stirrups.

[0028] In this embodiment, the three-in-one stirrup can be moved to the outlet 221 of the storage cavity 22 by the second feeding mechanism so that it can be moved out by the stirrup material dispensing and placing device 3.

[0029] Reference Figure 5 , Figure 6 and Figure 7 The stirrup feeding and positioning device 3 includes a bracket 31, on which a feeding mechanism 32 is provided for feeding the three-in-one stirrup at the discharge port 221 and causing it to enter the bracket 31. The bracket 31 is provided with a positioning member 33 for fixing the three-in-one stirrup, and a positioning mechanism 34 for feeding the longitudinal bar and causing it to conform to the side wall of the three-in-one stirrup.

[0030] In this embodiment, the three-in-one stirrup can be moved onto the bracket 31 by the material feeding mechanism 32, and then fixed by the positioning member 33. Then, the longitudinal bars can be moved by the placement mechanism 34 and made to fit against the side wall of the three-in-one stirrup.

[0031] Reference Figure 8 and Figure 9 The skeleton traction device 4 includes a mounting base 41, on which a first mounting frame 42 is slidably disposed along the length direction of the longitudinal ribs. The mounting base 41 is provided with a first driving member for driving the first mounting frame 42 to move, and the first mounting frame 42 is provided with fasteners 43 for fixing the ends of each longitudinal rib.

[0032] In this embodiment, the ends of each longitudinal rib can be fixed to the first mounting bracket 42 by fasteners 43. The longitudinal ribs can be moved by driving the first mounting bracket 42 with a first driving member. The first driving member includes a first driving motor. The first mounting bracket 42 is connected to the mounting base 41 by a meshing first gear and a first rack. The first driving motor is mounted on the first mounting bracket 42, and the output shaft of the first driving motor is connected to the first gear. The first mounting bracket 42 can be moved by the first gear rolling along the length direction of the first rack.

[0033] In this embodiment, the welding device 5 employs a multi-axis robotic arm, with an electric welding head electrically connected to the movable end of the robotic arm.

[0034] Specifically, the first feeding mechanism includes a feeding plate 13, which is slidably mounted on the frame 11 along the longitudinal rib conveying direction. The feeding plate 13 has multiple second mounting holes 131 that correspond one-to-one with the first mounting holes 121. The feeding plate 13 and the fixing plate 12 are provided with first clamping members 14 for alternately clamping the longitudinal ribs, and the frame 11 is provided with a second driving member for moving the feeding plate 13.

[0035] In this embodiment, the first clamping member 14 on the feeding plate 13 clamps each longitudinal rib, and the first clamping member 14 on the fixing plate 12 releases the longitudinal rib. Moving the feeding plate 13 allows the longitudinal rib to be moved a certain distance. The first clamping member 14 on the feeding plate 13 releases the longitudinal rib, the first clamping member 14 on the fixing plate 12 clamps the longitudinal rib, and then moving the longitudinal rib back allows the next section of longitudinal rib to be moved.

[0036] The first clamping component 14 includes a fixing strip 141 and a clamping block 142. The fixing strip 141 is bolted to the corresponding fixing plate 12 and feeding plate 13. The clamping block 142 is linearly slidably disposed on the corresponding fixing plate 12 and feeding plate 13, and cooperates with the fixing strip 141 to clamp and fix the longitudinal rib. The fixing plate 12 and feeding plate 13 are provided with hydraulic drive cylinders 143 for driving the clamping block 142 to move.

[0037] The second driving component includes a first electric cylinder, which is mounted on the frame 11 and whose piston rod is bolted to the feed plate 13.

[0038] Specifically, the storage chamber 22 is provided with multiple guide tubes 24 at intervals for each longitudinal rib to pass through, and the guide tubes 24 are parallel to the conveying direction of the longitudinal rib.

[0039] In this embodiment, each longitudinal rib passing through the first mounting hole 121 and the second mounting hole 131 is respectively installed in each guide tube 24, which not only serves as a guide but also provides support for the longitudinal rib.

[0040] Specifically, the second feeding mechanism includes multiple feeding screws 23, which are parallel to the conveying direction of the longitudinal ribs and rotatably mounted on the hopper frame 21. A second drive motor is mounted on the hopper frame 21, and the output shaft of the second drive motor is connected to each feeding screw 23 via gear and chain transmission.

[0041] Specifically, the positioning component 33 includes positioning plates 331 disposed on both sides of the bracket 31, and slots 3311 for the web stirrups to pass through are provided on the positioning plates 331. The two positioning plates 331 are linearly slidably disposed on the bracket 31 so that the slots 3311 engage with and abut against the two web stirrups. A third driving component 332 is provided on the bracket 31 to drive the positioning plates 331 to move.

[0042] In this embodiment, the material feeding mechanism 32 moves the three-in-one stirrup between the positioning plates 331 on both sides, and then moves the positioning plates 331 on both sides so that the inner wall of the slot 3311 abuts against the side wall of the web stirrup, thereby fixing the three-in-one stirrup.

[0043] The third driving component 332 includes a first cylinder, which is mounted on the bracket 31, and the piston rod of the first cylinder is bolted to the positioning plate 331.

[0044] The material feeding mechanism 32 includes a pneumatic gripper 321. A slide block 322 is slidably mounted on the support 31 along the longitudinal rib conveying direction. A mounting rod 323 is linearly slidably mounted on the slide block 322 along a direction perpendicular to its own movement. The pneumatic gripper 321 is mounted on the mounting rod 323. A fourth driving member is provided on the support 31 to drive the slide block 322 to move, and a fifth driving member is provided on the slide block 322 to drive the mounting rod 323 to move.

[0045] The pneumatic gripper 321 can clamp and move the three-in-one stirrup by moving the slide 322 and mounting rod 323 together. The fourth driving component includes a third driving motor. The slide 322 is connected to the bracket 31 via a meshing second gear and a second rack. The third driving motor is mounted on the slide 322, and its output shaft is connected to the second gear. The slide 322 can be moved by the second gear rolling along the length of the second rack. The fifth driving component includes a second electric cylinder, which is mounted on the slide 322, and its piston rod is bolted to the mounting rod 323.

[0046] The positioning mechanism 34 includes four second mounting frames 341 horizontally and linearly slidably mounted on the support 31, and three third mounting frames 342 vertically and linearly mounted on the support 31. The second mounting frames 341 have multiple third mounting holes 3411 for the web longitudinal reinforcement to pass through, and the third mounting frames 342 have multiple second clamping members 35 for holding each bottom plate longitudinal reinforcement. The support 31 has four sixth driving members 343 for respectively driving each second mounting frame 341 to move and for each web longitudinal reinforcement to conform to the web stirrups, and two seventh driving members 344 for respectively driving the two third mounting frames 342 to move vertically and for each bottom plate longitudinal reinforcement to conform to the bottom plate stirrups.

[0047] Specifically, the second clamping component 35 includes two sliding plates, which are spaced apart on the third mounting frame 342 along the longitudinal rib conveying direction, and are horizontally slidable in a straight line perpendicular to the longitudinal rib conveying direction. Multiple clamping rods are bolted to the two sliding plates, each corresponding to the other and moving in opposite directions with the two plates to movably clamp each bottom plate longitudinal rib. The end of each clamping rod away from the sliding plate is integrally fixed with a hook for hooking the bottom plate longitudinal rib and moving vertically with the third mounting frame 342 to make the bottom plate longitudinal rib conform to the inner wall of the bottom plate stirrup. The third mounting frame 342 is equipped with two eighth driving components 36, each for driving the two sliding plates to move.

[0048] In this embodiment, the sixth driving component 343 includes a fourth driving motor. The second mounting bracket 341 is connected to the support 31 via a meshing third gear and a third rack. The fourth driving motor is mounted on the second mounting bracket 341, and its output shaft is connected to the third gear. The second mounting bracket 341 can be moved by the third gear rolling along the length of the third rack. The seventh driving component 344 includes a third electric cylinder, which is vertically mounted on the support 31, and its piston rod is bolted to the third mounting bracket 342. The eighth driving component 36 includes a second cylinder, which is horizontally mounted on the slide plate, and its piston rod is bolted to the third mounting bracket 342.

[0049] Specifically, the fastener 43 includes a plurality of mounting blocks 431 bolted to the first mounting bracket 42. The mounting blocks 431 are provided with mounting grooves 4311 for the ends of the longitudinal ribs to pass through. A threaded hole 4312 is provided through one side of the mounting groove 4311. A fastening bolt (not shown in the figure) is threaded into the threaded hole 4312 for moving and abutting against the outer wall of the longitudinal rib.

[0050] In this embodiment, after one end of the longitudinal rib is inserted into the mounting groove 4311, the fastening bolt is tightened and made to abut against the outer wall of the longitudinal rib, so that the end of the longitudinal rib can be fixed on the first mounting bracket 42.

[0051] Furthermore, the mounting base 41 is provided with a plurality of unpowered rollers 44 at intervals along the direction of longitudinal reinforcement transfer for rolling contact with the bottom of the steel reinforcement cage.

[0052] During the welding and manufacturing process of the steel reinforcement cage, the non-powered roller 44 rolls in contact with the bottom of the steel reinforcement cage, which not only provides support for the steel reinforcement cage, but also reduces the resistance encountered by the steel reinforcement cage during the transfer process.

[0053] The implementation principle of an automatic welding workstation for a small box girder frame according to an embodiment of this application is as follows: one end of multiple longitudinal bars is fixed to the frame traction device 4. The longitudinal bars can be intermittently transferred through the longitudinal bar feeding device 1 and the frame traction device 4. During the transfer process, the three-in-one stirrups can be installed one by one in each section of the longitudinal bars through the stirrup and longitudinal bar combination hopper 2. The three-in-one stirrups can be moved one by one through the stirrup material placement device 3 to make each longitudinal bar fit with the side wall of the three-in-one stirrup. The three-in-one stirrups can be welded to the longitudinal bars by the welding device 5. This has the effect of improving the convenience of steel reinforcement frame manufacturing.

[0054] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. An automatic welding workstation for small box girder frames, characterized in that: It includes a longitudinal reinforcement feeding device (1), a stirrup and longitudinal reinforcement combination hopper (2), a stirrup material feeding and placing device (3), and a skeleton traction device (4) arranged in sequence. The stirrup material feeding and placing device (3) is provided with a welding device (5) on the outside. The longitudinal reinforcement feeding device (1) includes a frame (11), a fixing plate (12) is provided on the frame (11), a plurality of first mounting holes (121) for longitudinal reinforcement to pass through are provided on the fixing plate (12), and a first feeding mechanism for intermittently feeding longitudinal reinforcement along the length direction of longitudinal reinforcement is also provided on the frame (11). The stirrup and longitudinal reinforcement combined silo (2) includes a silo frame (21), and the silo frame (21) is provided with a storage cavity (22) for arranging and installing the three-in-one stirrups. The storage cavity (22) has an outlet (221) for the three-in-one stirrups to enter and exit at one end away from the longitudinal reinforcement traction device. The storage cavity (22) is also provided with a second feeding mechanism for transporting the three-in-one stirrups. The stirrup feeding and placement device (3) includes a bracket (31), a feeding mechanism (32) for feeding the three-in-one stirrup at the discharge port (221) and making it enter the bracket (31), a positioning member (33) for fixing the three-in-one stirrup, and a placement mechanism (34) for feeding the longitudinal bar and making it fit against the side wall of the three-in-one stirrup; The skeleton traction device (4) includes a mounting base (41), on which a first mounting frame (42) is slidably disposed along the length direction of the longitudinal rib. The mounting base (41) is provided with a first driving member for driving the first mounting frame (42) to move, and the first mounting frame (42) is provided with fasteners (43) for fixing the ends of each longitudinal rib.

2. The automatic welding workstation for a small box girder frame according to claim 1, characterized in that: The first feeding mechanism includes a feeding plate (13), which is slidably mounted on the frame (11) along the longitudinal rib conveying direction. The feeding plate (13) has multiple second mounting holes (131) that correspond one-to-one with the first mounting hole (121). The feeding plate (13) and the fixing plate (12) are provided with first clamping members (14) for alternating clamping of the longitudinal rib. The frame (11) is provided with a second driving member for driving the feeding plate (13) to move.

3. The automatic welding workstation for a small box girder frame according to claim 1, characterized in that: The storage cavity (22) is provided with a plurality of guide tubes (24) for each longitudinal rib to pass through, and the guide tubes (24) are parallel to the conveying direction of the longitudinal rib.

4. The automatic welding workstation for a small box girder frame according to claim 1, characterized in that: The positioning component (33) includes positioning plates (331) disposed on both sides of the bracket (31). The positioning plates (331) on both sides are provided with slots (3311) for the web stirrups to pass through. The two positioning plates (331) are linearly slidably disposed on the bracket (31) so that the slots (3311) cooperate to abut against the two web stirrups. The bracket (31) is provided with a third driving component (332) for driving the positioning plates (331) to move.

5. The automatic welding workstation for a small box girder frame according to claim 1, characterized in that: The fastener (43) includes a plurality of mounting blocks (431) disposed on the first mounting bracket (42). The mounting blocks (431) are provided with mounting grooves (4311) for the ends of the longitudinal ribs to pass through. A threaded hole (4312) is provided through one side of the mounting groove (4311). A fastening bolt for moving and abutting against the outer wall of the longitudinal rib is threaded in the threaded hole (4312).

6. The automatic welding workstation for a small box girder frame according to claim 5, characterized in that: The mounting base (41) is provided with a plurality of unpowered rollers (44) at intervals along the direction of longitudinal reinforcement transfer for rolling contact with the bottom of the steel reinforcement cage.

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