Box girder reinforcement framework automatic welding station uses bottom plate longitudinal reinforcement arrangement device

Abstract

The utility model provides a kind of bottom plate longitudinal reinforcement arrangement device for box girder reinforcement framework automatic welding station, belong to box girder reinforcement framework automatic processing technical field. Including installation frame and fixed on upper cross arm upper installation support, the lower side of upper installation support is equipped with lower installation support, upper installation support and lower installation support are respectively lifted and are equipped with upper mounting bracket, lower mounting bracket, upper mounting bracket and lower mounting bracket are respectively equipped with upper hook claw and lower hook claw, upper hook claw and lower hook claw are all relative upper mounting bracket and lower mounting bracket horizontal sliding connection, upper separation rod, lower separation rod are respectively equipped on upper mounting bracket and lower mounting bracket, and the end of upper separation rod and lower separation rod is equipped with sharp cone part, and one-to-one aligns the gap between longitudinal reinforcement. In the process that upper hook claw, lower hook claw stretch into longitudinal reinforcement gap, can separate closely arranged longitudinal reinforcement, so that upper hook claw and lower hook claw can accurately one-to-one lift each longitudinal reinforcement, with the effect of improving the accuracy of reinforcement framework automatic welding.

Description

Technical Field

[0001] This utility model relates to the field of automatic processing technology of box girder reinforcement cage, and in particular to a device for placing the longitudinal reinforcement of the bottom plate used in an automatic welding station for box girder reinforcement cage. Background Technology

[0002] In municipal road and bridge construction, box girders are indispensable. To improve construction efficiency, structural components and internal reinforcing steel cages in box girders are usually prefabricated. When fabricating the bottom and web steel cages of the box girder, the arranged bottom and web stirrups need to be welded into a three-in-one combined stirrup. External longitudinal bars are welded to the outside of the combined stirrup, and internal longitudinal bars are welded to the inside of the combined stirrup, thus forming the overall steel cage of the bottom and web of the box girder.

[0003] Patent CN117680876A discloses an automatic welding station for forming the bottom web skeleton of a small box girder, including a hopper, a placement mechanism, a material feeding mechanism, a rebar conveyor, and an automatic welding machine. The placement mechanism includes an installation frame, a material transfer component mounted on the installation frame that moves between the hopper and the automatic welding machine and clamps the combined stirrups, and a positioning component mounted on the installation frame near the automatic welding machine for fixing the combined stirrups and positioning longitudinal bars. A third mounting frame is vertically and vertically mounted on the installation frame above the bottom plate stirrups in the material passage cavity. A first driving component is mounted on the installation frame to drive the third mounting frame to move vertically. Two parallel connecting rods are horizontally slidably mounted on the bottom wall of the third mounting frame. Several corresponding hooks are fixedly connected to the bottom of the two connecting rods. A second driving component is mounted on the third mounting frame to drive the two connecting rods to move synchronously in opposite directions so that the hooks clamp the longitudinal bars.

[0004] However, during the initial welding process of the box girder reinforcement cage, the longitudinal bars that pass through the bottom slab stirrups and contact the inner top wall of the stirrups, as well as the longitudinal bars that contact the inner bottom wall of the bottom slab stirrups, still experience lateral displacement of the longitudinal bar heads after passing through the guide pipe of the hopper or the guide pipe upstream of the placement station due to the gap between them and the welding station. Especially when the longitudinal bars on the reinforcement cage are arranged close together, the hooks on the placement mechanism used to tighten the longitudinal bars cannot pass through the gaps between the longitudinal bars to separate and tighten them. This requires the staff to manually correct the posture of the longitudinal bars, affecting the smoothness of the automatic welding station for the box girder reinforcement cage and increasing the workload of the staff. Utility Model Content

[0005] In view of the above problems, this utility model provides a bottom plate longitudinal reinforcement placement device for an automatic welding station for box girder steel reinforcement cage.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: Provided is a bottom plate longitudinal reinforcement arranging device for use in an automatic welding station of a box girder reinforcement framework, comprising a "∩"-shaped mounting frame, wherein a downwardly extending upper mounting bracket is fixedly arranged on the upper cross arm of the mounting frame, a lower mounting bracket is arranged inside the mounting frame directly below the upper mounting bracket, an upper mounting rack is arranged on the upper mounting bracket in a vertically liftable manner, a plurality of upper hook claws are arranged below the upper mounting rack, and a second driving member for driving the upper hook claws to move horizontally so that the hook parts of the upper hook claws move from the side of the longitudinal reinforcements to below the longitudinal reinforcements is arranged on the upper mounting rack; A lower mounting rack is arranged on the lower mounting bracket in a vertically liftable manner, a plurality of lower hook claws are arranged above the lower mounting rack, and a fourth driving member for driving the lower hook claws so that the hook parts of the lower hook claws move from the side of the longitudinal reinforcements to above the longitudinal reinforcements is arranged on the lower mounting rack; A plurality of upper separating rods are vertically and fixedly arranged on the bottom wall of the upper mounting rack, a plurality of lower separating rods are vertically and fixedly arranged on the top wall of the lower mounting rack, the upper separating rods and the lower separating rods are both arranged at intervals along the length direction of the upper cross arm of the mounting frame, the bottom ends of the upper separating rods and the top ends of the lower separating rods are both provided with tapered parts, the bottom ends of the upper separating rods are lower than the bottom ends of the upper hook claws, and the top ends of the lower separating rods are higher than the top ends of the lower hook claws.

[0007] Further, a first driving member for driving the upper mounting rack to vertically lift is arranged on the upper mounting bracket, a first slide rail is vertically and fixedly arranged on the upper mounting bracket, the upper mounting rack is slidably connected to the first slide rail, the first driving member comprises a first electric push rod, the first electric push rod is fixedly connected with the upper mounting bracket, and the output end of the first electric push rod faces vertically downward and is fixedly connected with the upper mounting rack.

[0008] Further, a second driving member for driving the lower mounting rack to vertically lift is arranged on the lower mounting bracket, a plurality of guide posts are vertically and fixedly arranged on the lower mounting rack, guide sleeves are fixedly arranged on the lower mounting bracket, the guide posts are coaxially and slidably connected with the guide sleeves, the second driving member comprises a second electric push rod, the second electric push rod is fixedly arranged on the lower mounting bracket, and the top end of the second electric push rod is fixedly connected with the lower mounting rack.

[0009] Two upper connecting plates are horizontally and slidably arranged on the bottom wall of the upper mounting rack, the upper hook claws are fixedly connected to the two upper connecting plates in pairs, the hook parts of the upper hook claws on the two upper connecting plates face opposite directions, the second driving member comprises two first driving cylinders, and the two first driving cylinders are both fixed on the upper mounting rack for respectively driving the two upper connecting plates to move; Two lower connecting plates are horizontally and slidably arranged on the top wall of the lower mounting rack, the lower hook claws are fixedly connected to the two lower connecting plates in pairs, the hook parts of the lower hook claws on the two lower connecting plates face opposite directions, the fourth driving member comprises two second driving cylinders, and the two second driving cylinders are fixed on the lower mounting rack for respectively driving the two lower connecting plates to move.

[0010] Furthermore, after the upper hooks on the two upper connecting plates come together in pairs, the pairs of upper hooks correspond one-to-one with the upper separating rods and overlap.

[0011] Furthermore, guide ramps are provided at the bottom of the upper hook and the top of the lower hook near the edge of the hook.

[0012] The beneficial effects of this utility model are as follows: When arranging the longitudinal bars passing through the bottom plate stirrups in the box girder steel reinforcement cage, the upper mounting frame descends and the lower mounting frame rises. The upper and lower separating rods are inserted between the wire longitudinal bars and the bar longitudinal bars to separate the closely arranged longitudinal bars in pairs. Then, the upper and lower hooks are driven to move horizontally, so that the hook part of the upper hook moves to below the wire longitudinal bar and the hook part of the lower hook moves to above the bar longitudinal bar. Then, the upper and lower mounting frames are moved away from each other, so that the upper and lower hooks can respectively lift and press down the wire longitudinal bars and bar longitudinal bars to contact the inner top wall and inner bottom wall of the bottom wall stirrups. This avoids the longitudinal bars interfering with the movement of the upper and lower hooks, and allows the upper and lower hooks to hook up each longitudinal bar one by one, improving the accuracy of automatic welding of the steel reinforcement cage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the bottom plate longitudinal reinforcement placement device according to an embodiment of this application.

[0014] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0015] Figure 3 This is a front structural diagram of the bottom plate longitudinal rib placement device near the welding machine according to an embodiment of this application.

[0016] Figure 4 for Figure 3 A magnified view of part B in the diagram.

[0017] The components include: 1. Mounting frame; 2. Upper mounting bracket; 21. Upper mounting frame; 22. Upper hook; 23. Second drive component; 24. First electric push rod; 25. Upper separating rod; 26. Upper connecting plate; 3. Lower mounting bracket; 31. Lower mounting frame; 32. Lower hook; 33. Fourth drive component; 34. Second electric push rod; 35. Lower separating rod; 36. Lower connecting plate; and 4. Guide slope. Detailed Implementation

[0018] 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.

[0019] This application discloses a device for arranging the longitudinal reinforcement bars of the bottom slab in an automatic welding station for box girder steel reinforcement cages, referring to... Figure 1 The system includes a mounting frame 1, which is U-shaped and has an upper horizontal arm and two supporting columns. The bottom ends of the two supporting columns are fixedly supported on the bottom surface, and the two ends of the upper horizontal arm are horizontally fixedly connected to the top ends of the two supporting columns. An upper mounting bracket 2 extending downwards is welded and fixed to the middle of the upper horizontal arm. A lower mounting bracket 3 is located inside the mounting frame 1, directly below the upper mounting bracket 2, and is fixed to the bottom surface.

[0020] The bottom plate stirrups in the steel reinforcement cage pass between the upper mounting bracket 2 and the lower mounting bracket 3, and the wire and bar longitudinal reinforcements pass through the bottom plate stirrups. A vertical first slide rail is fixed on the upper mounting bracket 2, and an upper mounting frame 21 is slidably connected to the first slide rail. The upper mounting bracket 2 is provided with a first driving member for driving the upper mounting frame 21 to slide vertically. In this application, the first driving member can be a first electric push rod 24. The first electric push rod 24 is controlled by a servo motor to extend its stroke. The first electric push rod 24 is fixedly connected to the upper mounting bracket 2, and its output end points vertically downward and is fixedly connected to the upper mounting frame 21.

[0021] Several upper hooks 22 are provided at the bottom of the upper mounting frame 21. The upper mounting frame 21 is provided with a second driving member 23 for driving the upper hooks 22 to slide horizontally along the length of the upper horizontal arm. Each upper hook 22 has a hook portion facing one side at its bottom end. By lowering the upper mounting frame 21, the upper hooks 22 pass through the longitudinal ribs of the wire. Then, the upper hooks 22 are driven to move horizontally, so that the hook portion of the upper hook 22 moves to below the longitudinal ribs of the wire. Finally, the upper mounting frame 21 is driven to rise, so that the longitudinal ribs of the wire are pulled upward to keep the longitudinal ribs in contact with the inner top wall of the bottom plate stirrups. This facilitates the welding robot to weld the contact position between the longitudinal ribs and the stirrups in the placement mechanism.

[0022] In this embodiment, a lower mounting bracket 31 is provided above the lower mounting bracket 3. Several guide posts are vertically fixedly connected to the lower mounting bracket 31. A guide sleeve is fixedly installed on the lower mounting bracket 3. The guide posts and the guide sleeve are slidably connected. The lower mounting bracket 31 slides vertically relative to the lower mounting bracket 3 through the cooperation of the guide posts and the guide sleeve. The second driving component 23 can be a second electric push rod 34. The second electric push rod 34 is controlled by a servo motor to extend its stroke. The second electric push rod 34 is fixedly connected to the lower mounting bracket 3. The output end of the second electric push rod 34 is vertically upward and fixedly connected to the lower mounting bracket 31.

[0023] Several lower hooks 32 are spaced apart at the top of the lower mounting frame 31 along the length of the upper horizontal arm. The top of each lower hook 32 has a hook facing one side. A fourth driving member 33 is provided on the lower mounting frame 31 to drive the lower hooks 32 to move along the length of the upper horizontal arm. When positioning and fixing the lower layer of longitudinal bars in the bottom plate of the steel reinforcement cage, the lower mounting frame 31 is raised so that the lower hooks 32 extend between the lower layer longitudinal bars. The fourth driving member 33 drives the lower hooks 32 to move so that the hooks of the lower hooks 32 move above the longitudinal bars. After the lower mounting frame 31 is lowered, the lower hooks 32 can press down on the longitudinal bars, pressing the longitudinal bars tightly against the inner bottom wall of the stirrups, keeping the longitudinal bars in contact with the stirrups, which facilitates welding the longitudinal bars and stirrups together.

[0024] Furthermore, several upper separating rods 25 are vertically fixed on the bottom wall of the upper mounting frame 21. The upper separating rods 25 are spaced apart along the length of the upper horizontal arm. The bottom end of the upper separating rod 25 is lower than the bottom end of the upper hook 22. The bottom of the upper separating rod 25 is set as a pointed cone. The upper separating rod 25 is aligned with the gap between the longitudinal bars of the wire rod on the steel reinforcement skeleton. When the upper mounting frame 21 is lowered, the upper separating rod 25 can be accurately inserted between the longitudinal bars of the wire rod.

[0025] Several lower separating rods 35 are vertically fixed to the top wall of the lower mounting frame 31. The lower separating rods 35 are spaced apart along the length of the upper horizontal arm of the mounting frame 1. The top of the lower separating rod 35 is higher than the top of the upper hook 22. The top of the lower separating rod 35 is set as a pointed cone. The lower separating rod 35 is accurately aligned between the longitudinal bars of the steel bar skeleton with smaller gaps. The lower separating rod 35 can separate the longitudinal bars of the steel bar that are arranged relatively closely.

[0026] In this embodiment, a second slide rail is provided on the bottom wall of the upper mounting bracket 21. Two upper connecting plates 26 are horizontally slidably mounted on the second slide rail. Multiple upper hooks 22 are divided into two groups and fixed to the two upper connecting plates 26 respectively, with the upper hooks 22 on the two upper connecting plates 26 corresponding one-to-one, and the hooks of the upper hooks 22 on the two upper connecting plates 26 facing opposite directions. The second driving component 23 includes two first driving cylinders, both of which are fixed to the upper mounting plate. The two first driving cylinders are respectively connected to the two upper connecting plates 26 through connecting rods. By driving the two upper connecting plates 26 to move alternately, the upper hooks 22 on the two upper connecting plates 26 can be moved to an alternate state, thereby hooking and fixing the longitudinal ribs of each wire.

[0027] Furthermore, a third slide rail is provided on the top wall of the lower mounting bracket 31. Two lower connecting plates 36 are horizontally slidably connected to the third slide rail. Multiple lower hooks 32 are divided into two evenly spaced groups and fixed to the two lower connecting plates 36 respectively. The hooks on the lower hooks 32 on the two lower connecting plates 36 face opposite directions. The fourth driving component 33 consists of two second driving cylinders, which are fixed to the lower mounting bracket 31. The output ends of the two second driving cylinders are fixedly connected to the two lower connecting plates 36 through connecting rods. The two lower connecting plates 36 are driven to move synchronously and in opposite directions by the two second driving cylinders, so that the lower hooks 32 on the lower connecting plates 36 can quickly hook the longitudinal ribs of the bar.

[0028] Furthermore, after the upper hooks 22 on the two upper connecting plates 26 come together in pairs, the pairs of upper hooks 22 correspond one-to-one with and overlap with the upper separating rods 25. When the upper hooks 22 on the two upper connecting plates 26 overlap in pairs, the upper separating rods 25 cover the corresponding upper hooks 22 on the two connecting plates, which can effectively separate the longitudinal ribs of the wire and prevent the upper hooks 22 from conflicting with the longitudinal ribs when they are lowered with the upper mounting bracket 21.

[0029] Furthermore, guide ramps 4 are provided at the bottom of the upper hook 22 and the top edge of the lower hook 32 near the hook portion. When the upper hook 22 and the lower hook 32 extend into the space between the longitudinal ribs, the unobstructed portions of the hook portions of the upper hook 22 / lower hook 32 extending from both sides of the upper separating rod 25 / lower separating rod 35 can also guide and separate the longitudinal ribs when in contact with them using the guide ramps 4, ensuring that the upper hook 22 / lower hook 32 can accurately extend into the gaps between the longitudinal ribs.

[0030] 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. A device for arranging longitudinal reinforcement bars in the bottom slab of an automatic welding station for box girder steel reinforcement cages, characterized in that: comprising a "J"-shaped mounting frame (1), wherein an upper mounting bracket (2) extending downward is fixedly arranged on the upper cross arm of the mounting frame (1), a lower mounting bracket (3) is arranged in the mounting frame (1) directly below the upper mounting bracket (2), an upper mounting seat (21) is arranged on the upper mounting bracket (2) in a vertically liftable manner, a plurality of upper hook claws (22) are arranged below the upper mounting seat (21), and the upper mounting seat (21) is provided with a second driving member (23) for driving the upper hook claws (22) to move horizontally so that the hook parts of the upper hook claws (22) move from the side of the longitudinal rib to below the longitudinal rib; a lower mounting seat (31) is arranged on the lower mounting bracket (3) in a vertically liftable manner, a plurality of lower hook claws (32) are arranged above the lower mounting seat (31), and the lower mounting seat (31) is provided with a fourth driving member (33) for driving the lower hook claws (32) so that the hook parts of the lower hook claws (32) move from the side of the longitudinal rib to above the longitudinal rib; a plurality of upper separating rods (25) are vertically and fixedly arranged on the bottom wall of the upper mounting seat (21), a plurality of lower separating rods (35) are vertically and fixedly arranged on the top wall of the lower mounting seat (31), the upper separating rods (25) and the lower separating rods (35) are both arranged at intervals along the length direction of the upper cross arm of the mounting frame (1), the bottom ends of the upper separating rods (25) and the top ends of the lower separating rods (35) are both provided with pointed cone parts, the bottom ends of the upper separating rods (25) are lower than the bottom ends of the upper hook claws (22), and the top ends of the lower separating rods (35) are higher than the top ends of the lower hook claws (32).

2. The bottom plate longitudinal reinforcement placement device used in the automatic welding station for box girder reinforcement cages according to claim 1, characterized in that, the upper mounting bracket (2) is provided with a first driving member for driving the upper mounting seat (21) to vertically lift, a first sliding rail is vertically and fixedly arranged on the upper mounting bracket (2), the upper mounting seat (21) is slidably connected to the first sliding rail, the first driving member comprises a first electric push rod (24), the first electric push rod (24) is fixedly connected with the upper mounting bracket (2), and the output end of the first electric push rod (24) faces vertically downward and is fixedly connected with the upper mounting seat (21).

3. The bottom plate longitudinal reinforcement placement device used in the automatic welding station for box girder reinforcement cage according to claim 2, characterized in that, the lower mounting bracket (3) is provided with a second driving member (23) for driving the lower mounting seat (31) to vertically lift, a plurality of guide posts are vertically and fixedly arranged on the lower mounting seat (31), a guide sleeve is fixedly arranged on the lower mounting bracket (3), the guide posts are coaxially and slidably connected with the guide sleeve, the second driving member (23) comprises a second electric push rod (34), the second electric push rod (34) is fixedly arranged on the lower mounting bracket (3), and the top end of the second electric push rod (34) is fixedly connected with the lower mounting seat (31).

4. The device for arranging the longitudinal reinforcement bars of the bottom slab used in the automatic welding station for the box girder reinforcement cage according to claim 1, characterized in that, Two upper connecting plates (26) are horizontally slidably arranged on the bottom wall of the upper mounting bracket (21). The upper hooks (22) are fixedly connected to the two upper connecting plates (26) in pairs. The hooks of the upper hooks (22) on the two upper connecting plates (26) face opposite directions. The second driving member (23) includes two first driving cylinders. The two first driving cylinders are fixed on the upper mounting bracket (21) to drive the two upper connecting plates (26) to move respectively. Two lower connecting plates (36) are horizontally slidably arranged on the top wall of the lower mounting bracket (31). The lower hooks (32) are fixedly connected to the two lower connecting plates (36) in pairs. The hooks of the lower hooks (32) on the two lower connecting plates (36) face opposite directions. The fourth driving member (33) includes two second driving cylinders. The two second driving cylinders are fixedly fixed on the lower mounting bracket (31) to drive the two lower connecting plates (36) to move respectively.

5. The device for arranging the longitudinal reinforcement bars of the bottom slab used in the automatic welding station for the box girder reinforcement cage according to claim 4, characterized in that, After the upper hooks (22) on the two upper connecting plates (26) come together in pairs, the pairs of upper hooks (22) correspond one-to-one with the upper separating rods (25) and overlap.

6. The device for arranging the longitudinal reinforcement bars of the bottom slab used in the automatic welding station for the box girder reinforcement cage according to any one of claims 1 to 5, characterized in that, The bottom end of the upper hook (22) and the top end of the lower hook (32) near the edge of the hook are both provided with guide slopes (4).

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