Box girder structure overturning and tailor-welding tooling

Abstract

The utility model discloses a box girder structure overturns and splices the welding frock, including main support and be located in the rotary disc of main support rotary connection, main support sets up two at least, this main support is used to bear box girder structure overturns and splices the welding frock and box girder structure, be equipped with locking bolt on this main support to lock rotary disc, rotary disc is used to fix box girder structure and drive box girder structure to carry out the overturning action, rotary disc is by rotary chassis and rotary top disc cooperation, one end of rotary top disc is rotatably connected with rotary chassis, the other end of rotary top disc is movably connected with rotary chassis, and this rotary top disc realizes the opening and closure of rotary disc through the pull -out action of pull -out spare part. The utility model can carry out the overturning to box girder structure and realize multi -angle welding, and welding efficiency and security are all promoted.

Description

Technical Field

[0001] This utility model relates to the field of container crane technology, and more specifically, to a tooling for flipping and welding box girder structures. Background Technology

[0002] Box girder structures are the main load-bearing components of lifting equipment and an important part of achieving lifting functions. Their welding requires operators to perform flat welding operations. However, the weld seams are complex, with many vertical and bottom-view weld seams. The welding construction requirements are high. Moreover, the main body of the box girder is heavy and highly dependent on the overhead crane equipment. A separate overhead crane must be used to continuously lift and rotate the main body of the box girder to adjust the welding position. Then, the main body of the girder can be supported with wooden blocks or raised frames before welding can be carried out. The process is quite complicated. The heavy weight and large size also make the lifting and rotating operations very inconvenient and pose serious safety hazards. The various shortcomings such as low production efficiency and high safety risks are increasingly unsuitable for the needs of modern production.

[0003] In view of the above, there is an urgent need to design a new type of welding fixture to meet the stringent welding requirements of the main structure of the lifting box girder. The new welding fixture should also be able to achieve a flipping function to stop the movement in time and ensure safety. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a box girder structure flipping and welding fixture that can flip the box girder structure to achieve multi-angle welding, thereby improving both welding efficiency and safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a box girder structure flipping and welding fixture, including a main support and a rotary table rotatably connected to the main support;

[0007] At least two main supports are provided. The main supports are used to support the box girder structure flipping and welding fixture and the box girder structure. The main supports are provided with locking bolts for locking the turntable.

[0008] The turntable is used to fix the box girder structure and drive the box girder structure to rotate. The turntable is composed of a base plate and a top plate. One end of the top plate is rotatably connected to the base plate. The other end of the top plate is movably connected to the base plate. The top plate opens and closes by inserting and removing a plug.

[0009] Preferably, the main support includes a support base plate and a support frame vertically disposed on the support base plate, and a reinforcing plate is provided between the support base plate and the support frame; the support frame has an arc-shaped groove that matches the rotary table.

[0010] Preferably, the arc-shaped groove of the support frame is provided with a roller assembly for driving the rotary table to rotate.

[0011] Preferably, the rotary table is a circular or arc-shaped disk structure formed by the closed rotary base and rotary top;

[0012] The slewing chassis and the slewing top are arc-shaped structures with openings that match each other.

[0013] Preferably, the slewing chassis is provided with a support frame to support the box girder structure;

[0014] The support frame includes a support beam that supports the box girder structure and two baffles disposed on the support beam; the two baffles and the support beam form a groove for placing the box girder structure.

[0015] Preferably, the rotary top plate is rotatably connected to the rotary base plate via a cylindrical threaded pin.

[0016] Preferably, the plug-in is a plug-in fixing pin.

[0017] Preferably, the rotating top plate is provided with a crossbeam, and the crossbeam is provided with clamping bolts for pressing the box girder structure.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. A main support frame was designed to support other components of the tooling and the box girder structure;

[0020] 2. A rotary table consisting of a rotary top plate and a rotary bottom plate was designed. The two work together to fix the box girder structure and work with the main support to realize the flipping function of the tooling.

[0021] 3. A roller assembly was designed to reduce the resistance of rotating the turntable and enable easy rotation of the main beam body;

[0022] 4. The box girder structure flipping and welding fixture of this utility model can flip the box girder structure to achieve multi-angle welding, which improves both welding efficiency and safety.

[0023] 5. The box girder structure flipping and welding fixture of this utility model has a simple structure, small footprint, low failure rate, strong human-machine matching, and is very convenient. It effectively solves many defects such as safety hazards in conventional flipping and welding of box girder main body. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the box girder structure flipping and welding fixture of this utility model;

[0025] Figure 2 for Figure 1 Side view;

[0026] Figure 3 In the diagram, (a) is a schematic diagram of the main support structure; (b) is a side view of the main support structure; and (c) is a top view of the main support structure.

[0027] Figure 4 In the image, (a) is a schematic diagram of the slewing chassis; (b) is a top view of the slewing chassis.

[0028] Figure 5 This is a schematic diagram of the structure of the rotary top plate of this utility model;

[0029] Figure 6 In the diagram, (a) is a schematic diagram of the box girder structure being supported by a box girder flipping and welding fixture; (b) is a side view of (a).

[0030] In the diagram, 1. Main support; 11. Support base plate; 12. Bearing frame; 13. Reinforcing plate; 2. Locking bolt; 3. Pull-out plug; 4. Rotary top plate; 41. Crossbeam; 5. Clamping bolt; 6. Cylindrical threaded pin; 7. Rotary base plate; 71. Support frame; 72. Baffle; 8. Roller assembly; 9. Box girder structure. Detailed Implementation

[0031] To better understand the above-mentioned technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Combination Figure 1 , Figure 2 , Figure 6 As shown, the box girder structure flipping and welding fixture of this utility model includes a main support 1 and a rotary table rotatably connected to the main support 1. At least two main supports 1 are provided, which support the box girder structure flipping and welding fixture and the box girder structure 9; the main support 1 is provided with locking bolts 2 for locking the rotary table. The rotary table is used to fix the box girder structure 9 and drive the box girder structure 9 to flip; the rotary table is composed of a rotating base plate 7 and a rotating top plate 4; one end of the rotating top plate 4 is rotatably connected to the rotating base plate 7; the other end of the rotating top plate 4 is movably connected to the rotating base plate 7, and the rotating top plate 4 opens and closes through the insertion and removal of the pull-out plug 3.

[0033] Combination Figure 1 , Figure 3 As shown, the main support 1 serves as the load-bearing device for the various components of the box girder structure's flipping and welding fixture; two or more supports jointly bear the box girder structure. Combined with...Figure 3 As shown in (a) and (b), the main support 1 includes a support base plate 11 and a support frame 12 vertically mounted on the support base plate 11. A reinforcing plate 13 is provided between the support base plate 11 and the support frame 12 (see Figure 1). Figure 3 As shown in (c)); the support frame 12 has an arc-shaped groove that matches the turntable. The arc-shaped groove of the support frame 12 contains a roller assembly 8 for driving the turntable to rotate; this roller assembly 8 reduces the resistance to rotating the turntable, enabling easy rotation of the main body of the box girder structure. The locking bolt 2 locks the position of the turntable and the main support 1 by tightening and loosening it.

[0034] Combination Figure 1 , Figure 4 , Figure 5 As shown, the rotary table, as the main component for realizing the tooling flipping function, is a circular or arc-shaped disc structure formed by the closed rotary base 7 and rotary top 4; the rotary base 7 and rotary top 4 are arc-shaped structures with openings and matching each other. The rotary top 4 is rotatably connected to the rotary base 7 through a cylindrical threaded pin 6; the cylindrical threaded pin 6 is used to connect the rotary top 4 and the rotary base 7. The pull-out plug 3 is a key component for opening and closing the rotary top 4 and the rotary base 7. Pulling out the pull-out plug 3 can open the closed rotary table to facilitate subsequent support of the box girder structure; inserting the pull-out plug 3 can lock the two together, and the rotary top 4 and the rotary base 7 cooperate to form the rotary table; the pull-out plug 3 can be a pull-out fixing pin.

[0035] Combination Figure 1 and Figure 4 As shown, the slewing chassis 7 is equipped with a support frame 71 for supporting the box girder structure; the support frame 71 includes a support beam for supporting the box girder structure and two baffles 71 disposed on the support beam; the two baffles 71 and the support beam form a groove for placing the box girder structure. (Combined with...) Figure 1 , Figure 5 As shown, the rotating top plate 4 is provided with a crossbeam 14, and the crossbeam 14 is provided with clamping bolts 5 for clamping the box girder structure. The clamping bolts 5 are mainly used to tighten the box girder body after the box girder body is hoisted to clamp the box girder body of the box girder structure so that the box girder structure will not shake when it is rotated.

[0036] Combination Figure 6As shown, the box girder structure flipping and welding fixture in this embodiment can be manually rotated by turning the turntable on the main support 1, thereby flipping the box girder structure and completing the welding operation. The specific process is as follows: Select two sets of fixtures according to the specifications of the box girder structure (or multiple sets as needed), and place them symmetrically; rotate the turntable on the main support 1 so that the turntable base 7 is in a horizontal position with the opening facing upwards, then remove the plug-in fixing pin, lift the turntable top plate 4 upwards, and open the turntable; use a crane to hoist the main body of the box girder structure onto the turntable base 7, then close the turntable top plate 4, insert the plug-in fixing pin, and tighten the clamping bolt 5; then, by rotating the turntable, the box girder structure can be flipped. After the welding position is adjusted, tighten the locking bolt to fix the turntable, thereby locking the welding position of the box girder structure.

[0037] The box girder structure flipping and welding fixture of this utility model has a simple structure, small footprint, low failure rate, strong human-machine compatibility, and is very convenient. It effectively solves many defects such as safety hazards in conventional flipping and welding of box girder bodies.

[0038] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A box girder structure flipping and welding fixture, characterized in that, Includes a main support and a rotary table rotatably connected to the main support; At least two main supports are provided. The main supports are used to support the box girder structure flipping and welding fixture and the box girder structure. The main supports are provided with locking bolts for locking the turntable. The turntable is used to fix the box girder structure and drive the box girder structure to rotate. The turntable is composed of a base plate and a top plate. One end of the top plate is rotatably connected to the base plate. The other end of the top plate is movably connected to the base plate. The top plate opens and closes by inserting and removing a plug.

2. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The main support includes a support base plate and a support frame vertically mounted on the support base plate. A reinforcing plate is provided between the support base plate and the support frame. An arc-shaped groove matching the rotary table is provided on the support frame.

3. The box girder structure flipping and welding fixture according to claim 2, characterized in that: The support frame has an arc-shaped groove with a roller assembly for driving the rotary table to rotate.

4. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The rotary table is a circular or arc-shaped disc structure formed by the closed rotary base and rotary top; The slewing chassis and the slewing top are arc-shaped structures with openings that match each other.

5. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The slewing chassis is equipped with a support frame that carries the box girder structure. The support frame includes a support beam that supports the box girder structure and two baffles disposed on the support beam; the two baffles and the support beam form a groove for placing the box girder structure.

6. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The rotary top plate is rotatably connected to the rotary base plate via a cylindrical threaded pin.

7. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The plug-in connector uses a plug-in fixing pin.

8. The box girder structure flipping and welding fixture according to claim 1, characterized in that: The rotating top plate is equipped with a crossbeam, on which clamping bolts are provided for pressing the box girder structure.

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