Steel box girder U-rib steel liner forming device

Abstract

The utility model aims to provide a steel box girder U rib steel liner forming device which comprises a die, a bending and pressing punch and a driving device connected with the bending and pressing punch, the die comprises a bending frame abutting against the bending and pressing punch, and a clamping portion used for clamping a steel liner is arranged on the bending and pressing punch. Due to the arrangement of the clamping part, it is ensured that under the driving of the driving device, the steel liner can be accurately synchronized with the bending and pressing punch in the forming process, and forming errors caused by displacement of the steel liner in the moving process are avoided. According to the steel box girder U-rib steel liner forming device, the problems that in the prior art, U-rib steel liners are low in machining efficiency and poor in forming precision are solved, machining convenience and consistency are improved, and cost is controllable.

Description

Technical Field

[0001] The utility model relates to the technical field of steel material processing, and more specifically to the technical field of tooling parts used for processing U-rib steel liner of steel box beams. Background Art

[0002] U-rib is an important component of steel box girder structure. Its shape is similar to the English letter "U", hence the name. U-rib is usually used to increase the lateral rigidity and stability of steel box girder, and also has certain bending and torsion resistance. In the construction of steel box girder, U-rib is welded with the outer plate to form a closed box structure. This design can provide good structural performance and rigidity, while reducing deadweight and facilitating transportation and construction.

[0003] In the prior art, the U-rib steel liner is usually manually bent by fire attack or cold bending, but the efficiency is low and the forming accuracy is poor, which affects the quality of the U-rib butt welding. Utility Model Content

[0004] The utility model aims to provide a U-rib steel liner forming device for a steel box girder, which solves the problems of low processing efficiency and poor forming accuracy of U-rib steel liner in the prior art, improves the convenience and consistency of processing, and has controllable costs.

[0005] A steel box girder U-rib steel liner forming device, characterized in that it includes a mold, a bending punch and a driving device connected to the bending punch, the mold includes a bending frame that contacts the bending punch, and the bending punch is provided with a clamping portion for clamping the steel liner.

[0006] The driving device may be a hydraulic cylinder in the prior art, which has the characteristics of large output force, high precision, fast response speed, and convenient control. The piston is extended and retracted to drive the bending punch to perform linear reciprocating motion. In order to ensure that the steel liner can maintain precise synchronization with the bending punch during the forming process under the drive of the driving device, and avoid forming errors caused by the displacement of the steel liner during the movement, the technical solution is provided with the clamping part on the bending punch. The clamping part can be in the form of a clamping groove or a clamp in the prior art, such as a combination of elastic sheets, bolts, and clamping blocks. These structures ensure that the steel liner can move synchronously with the bending punch along the same motion trajectory for forming during the movement of the bending punch. This design not only realizes automated operation, but also maintains the stability of the position during the forming process of the U-rib steel liner, greatly improving the forming accuracy and efficiency.

[0007] This steel box girder U-rib steel gasket forming device significantly improves the processing efficiency, while improving the forming accuracy, and solves the problems caused by low processing efficiency and insufficient accuracy. In addition, while ensuring performance, this design also considers cost control, making the entire processing process convenient and economical, and bringing an innovative and practical solution to the field of U-rib steel gasket forming.

[0008] As a preference of the present utility model, the engaging part includes an engaging block and an engaging groove, the opening of the engaging groove faces downward, and a steel box girder U-rib steel gasket forming device further includes a base located below the mold, and a unloading groove is provided on the base. When the steel gasket is processed and formed, it will fall off from this steel box girder U-rib steel gasket forming device through the engaging groove and the unloading groove.

[0009] The opening of the engaging groove faces downward, and the unloading groove is provided on the base, which is designed in cooperation with the engaging groove to provide a convenient falling-off path after the U-rib steel gasket is processed and formed. When the U-rib steel gasket falls off through the unloading groove, it can effectively reduce manual intervention, improve production efficiency, and ensure the safety of operation.

[0010] As a preference of the present utility model, the groove diameter of the engaging groove increases along the opening direction.

[0011] The groove diameter of the engaging groove gradually increases along the opening direction, which can play an engaging role and at the same time facilitate the smooth falling-off after the U-rib steel gasket is processed and formed, preventing excessive static friction from affecting the normal falling-off.

[0012] As a preference of the present utility model, the mold further includes parallel baffles connected to the bending frame and vertical baffles connected to the parallel baffles. The extension surfaces of the parallel baffles, the vertical baffles and the base are perpendicular to each other, and the positioning of the steel gasket after being inserted into the engaging groove is realized through the cooperation of the parallel baffles and the vertical baffles.

[0013] After the steel gasket is inserted into the engaging groove, one end abuts against the vertical baffle, and one of the extension surfaces is completely attached to the parallel baffle. Through the spatial position cooperation of the parallel baffle and the vertical baffle, the precise positioning of the steel gasket in two vertical directions before bending and pressing is realized, thereby improving the accuracy in the overall processing process.

[0014] As a preference of the present utility model, the mold further includes an opening groove that does not limit the linear movement of the engaging part.

[0015] When the driving device drives the bending punch and the steel liner to move linearly, the engaging portion moves to the outside of the mold through the opening slot until the bending punch, the steel liner and the bending frame are completely fitted together, and the U-rib steel liner is stamped and formed. This design ensures that the shape of the U-rib steel liner after each stamping is consistent with the mold, improving the precision and consistency of the forming. In addition, this design makes the U-rib steel liner have a smoother streamlined shape without protrusions and corners, which helps to evenly disperse stress and thus extend the service life of the parts.

[0016] As a preferred embodiment of the present invention, the base is integrally connected to the mold, and a mounting seat is provided on the base, which is detachably connected to the driving device.

[0017] The integrated design increases the overall pressure resistance of the mold, is not easy to deform, increases the service life, and also makes the entire tooling form a molded whole, which is convenient for transportation and carrying. In addition, the drive device and the mounting seat are detachably connected, which is convenient for later maintenance of parts and components, and can also ensure that the relative position of the drive device and the mold is fixed, which helps to reduce deviations caused by vibration or other factors during the operation of the equipment and ensure the consistency of molding. In addition, there is no need to frequently adjust the relative positions of various components during the application process, which improves the convenience of use.

[0018] As a preferred embodiment of the present invention, the driving device includes a hydraulic cylinder and a piston rod connected to the hydraulic cylinder, and a mounting plate is provided on the bending punch. The extension surface of the mounting plate is perpendicular to the movement trajectory of the piston and is fixedly connected to the piston rod.

[0019] The hydraulic cylinder converts hydraulic energy into mechanical energy through the piston rod, providing a stable linear force. Due to the low fluid resistance of the hydraulic system, the hydraulic cylinder can provide a smooth and uniform force output, thereby ensuring that the steel liner is subjected to a stable and predictable force during the forming process, which is essential for achieving a precise U-rib shape. In addition, since the piston rod is vertically connected to the mounting plate, this helps to ensure the balance of force on both sides of the bending punch and the steel liner, preventing the steel liner from deflecting or twisting during the forming process due to unbalanced force, thereby improving the forming quality.

[0020] As a preferred embodiment of the utility model, a punch positioning plate and a guide plate which are perpendicular to each other are provided on the base, the guide plate is parallel to the movement trajectory of the bending punch, the bending punch includes a resistance part which resists the bending frame and an extension part connected to the resistance part, the punch positioning plate is in contact with the guide plate and the extension part, and is used for positioning and guiding the starting position of the bending punch.

[0021] Before the bending and pressing impact, the side surface of the extension part is fitted with the punch positioning plate to achieve positioning, ensure the relative position of the bending punch and the die is fixed, and ensure the consistency of forming. The guide plate is parallel to the movement trajectory of the bending punch, ensuring that the movement trajectory of the bending punch is consistent each time, avoiding other external interference factors that cause deviations in the movement trajectory, and improving the consistency of product forming.

[0022] In summary, the utility model has the following beneficial effects:

[0023] The clamping portion is provided on the bending punch, which ensures that the steel liner can move synchronously with the bending punch along the same motion trajectory for forming during the movement of the bending punch. The position stability is maintained during the forming process of the U-rib steel liner, greatly improving the forming accuracy and efficiency.

[0024] The engaging groove opens downward, and the base is provided with the unloading groove, which is designed in conjunction with the engaging groove to provide a convenient falling-off path after the U-rib steel liner is processed and formed, which can effectively reduce manual intervention, improve production efficiency, and ensure the safety of operation.

[0025] The groove diameter of the engaging groove gradually increases along the opening direction, which plays a role of engaging and can also facilitate the smooth falling off of the U-rib steel liner after processing and forming, and prevent excessive static friction from affecting normal falling off.

[0026] After the steel liner is inserted into the locking groove, one end thereof contacts the vertical baffle plate, and one of the extended surfaces is completely fitted with the parallel baffle plate. The spatial position coordination of the parallel baffle plate and the vertical baffle plate enables the steel liner to be precisely positioned in two vertical directions before bending, thereby improving the accuracy of the overall processing process.

[0027] A punch positioning plate and a guide plate which are perpendicular to each other are provided on the base. The guide plate is parallel to the movement trajectory of the bending punch. The bending punch includes a contact portion which contacts the bending frame and an extension portion connected to the contact portion. The punch positioning plate is fitted with the guide plate and the extension portion, and is used for positioning and guiding the starting position of the bending punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the device structure in the initial state;

[0029] Figure 2 It is a schematic diagram of the bending punch structure;

[0030] Figure 3 It is a schematic diagram of the device structure after bending and pressing;

[0031] Figure 4 Schematic diagram of the base structure. DETAILED DESCRIPTION

[0032] In the figure, 1. mold, 11. bending frame, 12. parallel baffle, 13. vertical baffle, 14. opening groove, 2. bending punch, 21. snap-fitting part, 211. snap-fitting block, 212. snap-fitting groove, 22. mounting plate, 23. interference part, 24. extension part, 3. driving device, 4. base, 41. unloading chute, 5. punch positioning plate, 6. guide plate.

[0033] like Figure 1 As shown, a steel box girder U-rib steel liner forming device comprises a die 1, a bending punch 2 and a driving device 3 connected to the bending punch 2. The driving device 3 can be a hydraulic cylinder in the prior art, which has the characteristics of large output force, high precision, fast response speed, convenient control, etc. The bending punch 2 is driven to perform linear reciprocating motion by the extension and contraction of the piston rod.

[0034] like Figure 2 As shown, a mounting plate 22 is provided on the bending punch 2, and the extension surface of the mounting plate 22 is perpendicular to the motion trajectory of the piston and is fixedly connected to the piston rod. The piston rod is vertically connected to the mounting plate 22, which helps to ensure the force balance on both sides of the bending punch 2 and the steel liner, prevents the steel liner from being offset or twisted during the forming process due to unbalanced force, and improves the forming quality.

[0035] In order to ensure that the steel liner can maintain precise synchronization with the bending punch 2 during the forming process under the drive of the driving device 3, and to avoid forming errors caused by the displacement of the steel liner during movement, the present technical solution is provided with a clamping portion 21 on the bending punch 2. The clamping portion 21 can be in the form of a clamping groove 212 or a clamp in the prior art, such as a combination of an elastic sheet, a bolt, and a clamping block. In the present embodiment, the clamping portion 21 is a clamping block 211 and a clamping groove 212. The clamping groove 212 opens downward. When the steel liner passes through the clamping groove 212, one end contacts the vertical baffle 13, and one of the extended surfaces is completely fitted with the parallel baffle 12. The precise positioning of the steel liner in two vertical directions before bending is achieved by spatially coordinating the parallel baffle 12 and the vertical baffle 13, thereby improving the accuracy of the overall processing process.

[0036] like Figure 3As shown, when the driving device 3 drives the bending punch 2 and the steel gasket to move linearly, an opening groove 14 is provided between the two bending frames 11, which can unrestrict the linear movement of the engaging part 21, so that the U-rib steel gasket after bending and forming is completely attached to both the bending frame 11 and the abutting part 23. The stamping forming of the U-rib steel gasket is completed. This design ensures that the shape after each stamping forming is consistent with the mold 1, improving the forming accuracy and consistency. In addition, this design makes the U-rib steel gasket have a relatively smooth streamline shape without protrusions and corners, which helps to evenly disperse stress and thus extends the service life of the part.

[0037] As Figure 4 shown, a unloading groove 41 is provided on the base 4. When the U-rib steel gasket after bending and forming can fall off through the unloading groove 41, it can effectively reduce manual intervention, improve production efficiency, and ensure the safety of operation.

[0038] As a preference of this embodiment, the groove diameter of the engaging groove 212 gradually increases along the opening direction, which not only plays a role in engaging but also facilitates the smooth falling off of the U-rib steel gasket after processing and forming, preventing the static friction force from being too large and affecting the normal falling off.

[0039] As a preference of this embodiment, a punch positioning plate 5 and a guide plate 6 perpendicular to each other are provided on the base 4. The guide plate 6 is parallel to the movement trajectory of the bending punch 2. The bending punch 2 includes an abutting part 23 that abuts against the bending frame 11 and an extension part 24 connected to the abutting part 23. The punch positioning plate 5 and the guide plate 6 are attached to the extension part 24 for positioning and guiding the starting position of the bending punch 2. Before the bending impact, the side surface of the extension part 24 is attached to the punch positioning plate 5 to achieve positioning, ensuring the relative position of the bending punch 2 and the mold 1 is fixed and ensuring the consistency of forming. The guide plate 6 is parallel to the movement trajectory of the bending punch 2, ensuring that the movement trajectory of the bending punch 2 is consistent each time, avoiding deviation of the movement trajectory caused by other external interference factors, and improving the consistency of product forming.

[0040] As a preference of this embodiment, the base 4 is integrally connected to the mold 1. An installation seat is provided on the base 4, and it is detachably connected to the driving device 3 through a bolt-nut combination. The integral design increases the overall compressive capacity of the mold 1, is not easily deformed, and improves the service life. It also makes the entire tooling part form a modular whole, which is convenient for transportation and carrying. In addition, the driving device 3 is detachably connected to the installation seat, which is convenient for the later maintenance of parts and components, and can also ensure the relative position of the driving device 3 and the mold 1 is fixed, helping to reduce the deviation caused by vibration or other factors during the operation of the equipment and ensuring the consistency of forming. In addition, during the application process, there is no need to frequently adjust the relative positions of each component, improving the convenience of use.

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A forming device for U-shaped ribs of steel box girders, characterized in that, It includes a die (1), a bending punch (2), and a driving device (3) connected to the bending punch (2). The die (1) includes a bending frame (11) that abuts against the bending punch (2), and the bending punch (2) is provided with a clamping portion (21) for clamping a steel gasket.

2. The steel box girder U-rib steel backing forming device according to claim 1, characterized in that, The clamping portion (21) includes a clamping block (211) and a clamping groove (212). The opening of the clamping groove (212) faces downward. The steel box girder U-rib steel gasket forming device further includes a base (4) located below the die (1). The base (4) is provided with a unloading groove (41). When the steel gasket is processed and formed, it will fall off from the steel box girder U-rib steel gasket forming device through the unloading groove (41).

3. The forming device for the U-shaped rib steel liner of a steel box girder according to claim 2, characterized in that, The groove diameter of the clamping groove (212) increases along the opening direction.

4. A steel box girder U-rib steel backing forming device according to claim 2, characterized in that, The die (1) further includes parallel baffles (12) connected to the bending frame (11) and vertical baffles (13) connected to the parallel baffles (12). The extending surfaces of the parallel baffles (12), the vertical baffles (13), and the base (4) are perpendicular to each other. The positioning of the steel gasket after being inserted into the clamping groove (212) is achieved through the cooperation of the parallel baffles (12) and the vertical baffles (13).

5. A forming device for U-shaped ribs of a steel box girder steel backing according to claim 1, characterized in that, The die (1) further has an opening groove (14) that does not limit the linear movement of the clamping portion (21).

6. The steel box girder U-rib steel backing forming device according to claim 2, characterized in that, The base (4) is integrally connected to the die (1). The base (4) is provided with a mounting seat, which is detachably connected to the driving device (3).

7. A U-rib steel lining forming device for steel box girders according to claim 2, characterized in that, The base (4) is provided with a punch positioning plate (5) and a guide plate (6) that are perpendicular to each other. The guide plate (6) is parallel to the movement track of the bending punch (2). The bending punch (2) includes a abutting portion (23) that abuts against the bending frame (11) and an extending portion (24) connected to the abutting portion (23). The punch positioning plate (5) and the guide plate (6) are in contact with the extending portion (24), and are used for positioning and guiding the starting position of the bending punch (2).

8. A steel box girder U-rib steel backing forming device according to any one of claims 1-7, characterized in that, The driving device (3) includes a hydraulic cylinder and a piston rod connected to the hydraulic cylinder. The bending punch (2) is provided with a mounting plate (22). The extending surface of the mounting plate (22) is perpendicular to the movement track of the piston and is fixedly connected to the piston rod.

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