Automatic alignment and assembly device for bridge steel structure section

Abstract

The application discloses a bridge steel structure section automatic alignment assembling device and relates to the field of bridge assembling.The technical scheme is as follows: a base and a support fixedly installed at the bottom of the base are arranged;movable clamping plates are arranged on the two sides of the base;negative pressure assemblies are arranged in the clamping plates; a plurality of uniformly distributed connecting blocks are fixedly connected to the bottom of the clamping plate; the connecting blocks are extended to the bottom of the base and are fixedly connected with pressure bearing blocks; and a base is arranged at the bottom of the base.The beneficial effects of the application are as follows: the rigid clamping and negative pressure adsorption are combined to form a double fixing mode; the clamping plate provides main clamping force for the steel structure section; the suction cup is tightly attached to the surface of the steel structure under the action of the spring and the cylinder piston suction; the sealing and close-fitting effect is improved by cooperating with the rubber ring; stable negative pressure is formed by the cylinder, the through pipe and the branch pipe; and the micro one-way valve on the branch pipe can lock the negative pressure and prevent the backflow of air flow.

Description

Technical Field

[0001] This invention relates to the field of bridge assembly, and more specifically to an automatic alignment and assembly device for bridge steel structure segments. Background Technology

[0002] Currently, most bridge steel structure segment assembly operations use high-strength bolts for fastening connections. In actual operation, each bolt needs to be aligned and tightened one by one, which is a cumbersome and time-consuming process that requires a large amount of manpower and results in low assembly efficiency. A few devices use clamps to directly hold the assembly, but relying solely on rigid clamping on one side results in poor clamping fit and inadequate fixation. Steel structure segments are prone to shifting and loosening, and alignment accuracy is difficult to guarantee, which cannot meet the requirements for efficient and stable assembly of bridge steel structures.

[0003] Therefore, it is necessary to invent an automatic alignment and assembly device for bridge steel structure segments. Summary of the Invention

[0004] Therefore, the present invention provides an automatic alignment and assembly device for bridge steel structure segments to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic alignment and assembly device for bridge steel structure segments, comprising a base and a bracket fixedly installed at the bottom of the base. Movable clamping plates are provided on both sides of the base. A negative pressure assembly is installed inside each clamping plate. Multiple evenly distributed connecting blocks are fixedly connected to the bottom of the clamping plates. The bottom ends of the connecting blocks extend to the bottom of the base and are fixedly connected to a pressure-bearing block. A base is provided at the bottom of the base. Multiple support columns are fixedly connected to both the front and rear sides of the base. An extrusion head adapted to the pressure-bearing block is fixedly installed at the end of each support column. The contact surfaces of the pressure-bearing block and the extrusion head are mutually adapted inclined surfaces. A driving assembly for moving the base is also provided inside the bracket. A cylinder is fixedly connected to the inner side of the bracket. A piston plate is movably embedded inside the cylinder. A pull rod is fixedly connected to the end of the piston plate. A locking block is provided at the top of the pull rod. A shifting assembly is provided at the bottom of the base.

[0006] Preferably, the drive assembly includes a motor fixedly mounted on one side of the bracket, the output shaft of the motor extending into the inside of the bracket and fixedly connected to a screw, the two ends of the screw being movably connected to the bracket via bearings, and the screw penetrating the base and being threadedly connected to the base.

[0007] Preferably, the negative pressure assembly includes multiple suction cups installed inside the clamping plate. Multiple springs are fixedly connected to the side of the suction cups near the clamping plate. The ends of the springs are fixedly connected to the inside of the clamping plate. Rubber rings are fixedly connected to the outer surface of the suction cups. A through pipe is fixedly connected to the end of the suction cup. The end of the through pipe extends to the outside of the clamping plate and the base and is fixedly connected to a branch pipe a. A branch pipe b is fixedly connected to the bottom end of the branch pipe a. The bottom end of the branch pipe b is connected to the cylinder.

[0008] Preferably, the bracket is further provided with two symmetrically distributed limiting slide rods, which pass through the support column and are slidably connected to it.

[0009] Preferably, a guide rail is provided through the inside of the connecting block, and the guide rail is fixedly installed inside the base and slidably connected to the connecting block.

[0010] Preferably, a miniature one-way valve is installed on the branch pipe b.

[0011] Preferably, the shift assembly includes a plurality of slots formed at the bottom of the base, one of which has a corresponding protrusion inserted inside.

[0012] Preferably, the cross-sectional shape of both the slot and the bump is set to T-shape.

[0013] Preferably, a rubber pad is fixedly installed on the surface of the clamping plate.

[0014] The beneficial effects of this invention are: This invention uses a motor to drive a screw to move the base, and utilizes the combined transmission of the extrusion head and the pressure block to drive the two side clamping plates to move synchronously towards the center, achieving automatic alignment and rigid clamping of bridge steel structure segments. The entire process eliminates the need for manual bolt tightening, greatly simplifying the assembly operation process and effectively shortening the assembly time. At the same time, the dual guiding and limiting of the limit slide rod and guide rail ensures that the base and clamping plates move smoothly without deviation, guaranteeing the alignment accuracy of the steel structure segments and significantly improving the assembly efficiency of bridge steel structure segments.

[0015] This invention employs a dual fixing method combining rigid clamping and negative pressure adsorption. While the clamping plate provides the main clamping force to the steel structure segment, the suction cup adheres tightly to the steel structure surface under the suction action of the spring and cylinder piston. The rubber ring enhances the sealing and fit effect. A stable negative pressure is formed through the cylinder, through pipe, and branch pipe. The miniature one-way valve on the branch pipe can lock the negative pressure and prevent airflow backflow, allowing the suction cup to continuously adsorb the steel structure segment. This effectively avoids the loosening and displacement problems that are prone to occur with simple rigid clamping, greatly improving the fixing stability. At the same time, the rubber ring and rubber pad can prevent damage to the steel structure surface during clamping. In addition, by setting multiple sets of connecting blocks at the bottom of the clamping plate, it is also ensured that the clamping plate is subjected to more balanced and stable forces.

[0016] This invention employs a motor with electromagnetic braking in the event of power failure, which can lock the screw instantly upon power failure to prevent the clamp from loosening. Combined with a negative pressure holding structure, the device can maintain its clamping and adsorption state even when the machine is stopped or the power is off, ensuring safe and reliable use. The initial engagement position of the locking block and the pull rod can be adjusted through the shifting component at the bottom of the base, making it adaptable to bridge steel structure segments of different widths. The device is highly versatile and has a compact and reasonable overall structure. Attached Figure Description

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom schematic diagram of the overall structure provided by the present invention; Figure 3 An exploded view of the overall structure provided for this invention; Figure 4 This is a schematic diagram illustrating the concealed effect of the base and clamping plate provided by the present invention. Figure 5 A schematic diagram showing the connection relationship between the base, cylinder, and tie rod provided by the present invention; Figure 6 Provided by the present invention Figure 5 Explosion diagram of the middle structure; Figure 7 This is an exploded view of the cylinder structure provided by the present invention.

[0020] In the diagram: 1. Base, 2. Bracket, 3. Clamping plate, 4. Connecting block, 5. Pressure block, 6. Base, 7. Support column, 8. Extrusion head, 9. Cylinder, 10. Piston plate, 11. Pull rod, 12. Locking block, 13. Motor, 14. Screw, 15. Suction cup, 16. Spring, 17. Rubber ring, 18. Through pipe, 19. Branch pipe a, 20. Branch pipe b, 21. Limiting slide rod, 22. Guide rail, 23. Miniature one-way valve, 24. Slot, 25. Protrusion. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] See attached document Figure 1 -Appendix Figure 7 The present invention provides an automatic alignment and assembly device for bridge steel structure segments, including a base 1 and a bracket 2 fixedly installed at the bottom of the base 1. Movable clamping plates 3 are provided on both sides of the base 1. A negative pressure component is provided inside the clamping plates 3. Multiple evenly distributed connecting blocks 4 are fixedly connected to the bottom of the clamping plates 3. The bottom end of the connecting blocks 4 extends to the bottom of the base 1 and is fixedly connected to a pressure block 5. A base 6 is provided at the bottom of the base 1. Multiple support columns 7 are fixedly connected to the front and rear sides of the base 6. An extrusion head 8 adapted to the pressure block 5 is fixedly installed at the end of the support column 7. The contact surface between the pressure block 5 and the extrusion head 8 is set as an inclined surface adapted to each other. A drive component for driving the base 6 to move is also provided inside the bracket 2. A cylinder 9 is fixedly connected to the inside of the bracket 2. A piston plate 10 is movably embedded inside the cylinder 9. A pull rod 11 is fixedly connected to the end of the piston plate 10. A locking block 12 is provided at the top of the pull rod 11. A shifting component is provided at the bottom of the base 6. In this embodiment, the contact surfaces of the pressure block 5 and the extrusion head 8 are both set as mutually compatible inclined surfaces to ensure that the extrusion head 8 will squeeze the pressure block 5 through the inclined surface after contacting the pressure block 5. In actual operation, the steel structure segment is first placed inside the base 1, and then the base 6 is moved by the drive component, so that the extrusion head 8 squeezes the pressure block 5, forcing the pressure block 5 to drive the clamping plate 3 to retract and move, thereby clamping the steel structure segment located inside the base 1. After clamping, the negative pressure component will also stick tightly to the steel structure segment and generate negative pressure, further improving the fixed assembly effect of the steel structure segment.

[0023] Please refer to the attached document for details. Figure 2-3 To facilitate driving, the device employs the following technical solution: the drive assembly includes a motor 13 fixedly mounted on one side of the bracket 2. The output shaft of the motor 13 extends into the bracket 2 and is fixedly connected to a screw 14. The two ends of the screw 14 are movably connected to the bracket 2 via bearings. The screw 14 passes through the base 6 and is threadedly connected to the base 6. In actual use, the motor 13 is a servo motor 13 or a stepper motor 13 with a power-off electromagnetic brake. The power-off electromagnetic brake mechanism is coaxially connected to the output shaft of the motor 13 and is used to lock the screw 14 when the motor 13 is de-energized to prevent the clamping plate 3 from loosening. The motor 13 can be, but is not limited to, a three-phase stepper servo motor 13 of model number Jiemicon 110J12160EC-1000-SC-YH.

[0024] Please refer to the attached document for details. Figure 3-4To achieve synchronous negative pressure suction, the device employs the following technical solution: The negative pressure assembly includes multiple suction cups 15 installed inside the clamping plate 3. Multiple springs 16 are fixedly connected to the side of the suction cups 15 near the clamping plate 3. The ends of the springs 16 are fixedly connected to the interior of the clamping plate 3. Rubber rings 17 are fixedly connected to the outer surface of the suction cups 15. A through-tube 18 is fixedly connected to the end of the suction cup 15. The end of the through-tube 18 extends to the outside of the clamping plate 3 and the base 1 and is fixedly connected to a branch tube a19. A branch tube b20 is fixedly connected to the bottom end of the branch tube a19. The bottom end of pipe b20 is connected to cylinder 9. In actual use, when the drive assembly moves the base 6, it will move the locking block 12 and the pull rod 11 through the shifting assembly, thereby causing the piston plate 10 to move in cylinder 9. Then, through the branch pipe b20, branch pipe a19 and through pipe 18, a negative pressure is formed inside the suction cup 15, thereby further improving the clamping and assembly effect of the steel structure segment. At the same time, when the suction cup 15 moves with the clamping plate 3, the branch pipe b20 itself has toughness and will rotate at a certain angle, but it does not affect its normal function.

[0025] Please refer to the attached document for details. Figure 3 In order to achieve the purpose of smooth horizontal movement of the base 6, the following technical solution is adopted: two symmetrically distributed limiting slide rods 21 are also fixedly embedded inside the bracket 2. The two limiting slide rods 21 pass through the support column 7 and are slidably connected to the support column 7. Through the two symmetrically distributed limiting slide rods 21, the base 6 can be effectively limited when the screw 14 rotates, so as to ensure that the base 6 moves smoothly. Please refer to the attached document for details. Figure 4 In order to achieve the purpose of smooth movement of the connecting block 4, the device adopts the following technical solution: a guide rail 22 is installed through the inside of the connecting block 4. The guide rail 22 is fixedly installed inside the base 1 and slidably connected with the connecting block 4. When the base 6 moves and drives the extrusion head 8 to extrude the pressure block 5, the pressure block 5 can drive the connecting block 4 to move smoothly along the direction of the guide rail 22, so as to achieve the clamping effect of the clamping plate 3.

[0026] Please refer to the attached document for details. Figure 4 In order to achieve the purpose of ensuring negative pressure, the device adopts the following technical solution: a miniature one-way valve 23 is installed on the branch pipe b20; it can effectively ensure the direction of air flow inside the branch pipe b20, thereby locking the negative pressure and preventing air pressure backflow, ensuring that the steel structure segment is still sucked in and does not loosen after power failure or machine shutdown.

[0027] Please refer to the attached document for details. Figure 5-7In order to achieve the purpose of shifting gears, the device adopts the following technical solution: the shifting component includes multiple slots 24 opened at the bottom of the base 6, one of which has a matching protrusion 25 inserted inside; the cross-sectional shape of the slot 24 and the protrusion 25 is set to T-shaped. The T-shaped slot 24 and the protrusion 25 can ensure that the protrusion 25 will not fall off when it is hung in the slot 24. In actual use, the protrusion 25 can also be inserted into the matching slot 24 according to the size of the workpiece to be clamped, and the initial distance between the protrusion 25 and the locking block 12 can be changed so as to ensure that when the clamping plate 3 moves and drives the rubber ring 17 to just contact the steel structure segment, the protrusion 25 also contacts the locking block 12.

[0028] In order to achieve more stable clamping and assembly, the device adopts the following technical solution: a rubber pad is fixedly installed on the surface of the clamping plate 3. The rubber pad has better static friction and can also play a certain role in protecting the clamped workpiece.

[0029] The usage process of this invention is as follows: When using this invention, the steel structure segment to be assembled is placed in the base 1, and then the motor 13 is started, driving the screw 14 to rotate, causing the base 6 to move the support column 7. At this time, the extrusion head 8 will gradually extrude the pressure block 5, and the pressure block 5 will drive the connecting block 4 to move along the guide rail 22, thereby driving the clamping plate 3 to move, so as to tighten the clamping plate 3 and finally complete the clamping and assembly of the steel structure segment. It should be noted that before clamping, the rubber ring 17 on the clamping plate 3 will first contact the steel structure segment. At this time, the clamping plate 3 has not yet contacted the steel structure segment, and at this time the base 6 drives the protrusion 25 to move to contact the locking block 12. Then the base 6 continues to move, and the locking block 12 pulls the pull rod 11 and the piston plate 10 to move. The cylinder 9 creates a negative pressure inside the suction cup 15 through the branch pipe b20, branch pipe a19 and through pipe 18, thereby further improving the clamping and assembly effect of the steel structure segment. Under the action of the miniature one-way valve 23, the air flow direction inside the branch pipe b20 can be effectively guaranteed, thus locking the negative pressure and preventing backflow of air pressure. This ensures that the steel structure segment is still sucked in and does not loosen after power failure or machine shutdown. At the same time, the continued movement of the base 6 will further tighten the clamping plate 3, and the rubber ring 17 will gradually shrink into the clamping plate 3. Finally, the clamping plate 3 is completely clamped to the outside of the steel structure segment, and the rubber ring 17 is also tightly attached to the steel structure segment. Under the dual effects of the rigid clamping of the clamping plate 3 and the negative pressure adsorption of the negative pressure component, the steel structure segment achieves a stable assembly effect.

[0030] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An automatic alignment and assembly device for bridge steel structure segments, comprising a base (1) and a bracket (2) fixedly installed at the bottom of the base (1), characterized in that: Movable clamps (3) are provided on both sides of the base (1). A negative pressure component is provided inside the clamps (3). Multiple evenly distributed connecting blocks (4) are fixedly connected to the bottom of the clamps (3). The bottom end of the connecting blocks (4) extends to the bottom of the base (1) and is fixedly connected to a pressure block (5). A base (6) is provided at the bottom of the base (1). Multiple support columns (7) are fixedly connected to the front and rear sides of the base (6). The ends of the support columns (7) are fixedly installed with a component that is compatible with the pressure block (5). The extrusion head (8) is provided with a pressure block (5) and the contact surface of the extrusion head (8) being set as mutually compatible inclined surfaces. The bracket (2) is also provided with a drive assembly for moving the base (6). A cylinder (9) is fixedly connected to the inside of the bracket (2). A piston plate (10) is movably embedded inside the cylinder (9). A pull rod (11) is fixedly connected to the end of the piston plate (10). A locking block (12) is provided at the top of the pull rod (11). A shifting assembly is provided at the bottom of the base (6).

2. The automatic alignment and assembly device for bridge steel structure segments according to claim 1, characterized in that: The drive assembly includes a motor (13) fixedly mounted on one side of the bracket (2). The output shaft of the motor (13) extends into the bracket (2) and is fixedly connected to a screw (14). The two ends of the screw (14) are movably connected to the bracket (2) through bearings. The screw (14) passes through the base (6) and is threadedly connected to the base (6).

3. The automatic alignment and assembly device for bridge steel structure segments according to claim 1, characterized in that: The negative pressure assembly includes multiple suction cups (15) installed inside the clamping plate (3). Multiple springs (16) are fixedly connected to the side of the suction cup (15) near the clamping plate (3). The ends of the springs (16) are fixedly connected to the inside of the clamping plate (3). Rubber rings (17) are fixedly connected to the outer surface of the suction cup (15). A through pipe (18) is fixedly connected to the end of the suction cup (15). The end of the through pipe (18) extends to the outside of the clamping plate (3) and the base (1) and is fixedly connected to a branch pipe a (19). A branch pipe b (20) is fixedly connected to the bottom end of the branch pipe a (19). The bottom end of the branch pipe b (20) is connected to the cylinder (9).

4. The automatic alignment and assembly device for bridge steel structure segments according to claim 2, characterized in that: The bracket (2) is also fixedly embedded with two symmetrically distributed limiting slide rods (21), which pass through the support column (7) and are slidably connected to the support column (7).

5. The automatic alignment and assembly device for bridge steel structure segments according to claim 1, characterized in that: The connecting block (4) has a guide rail (22) running through it. The guide rail (22) is fixedly installed inside the base (1) and is slidably connected to the connecting block (4).

6. The automatic alignment and assembly device for bridge steel structure segments according to claim 3, characterized in that: A miniature check valve (23) is installed on the branch pipe b (20).

7. The automatic alignment and assembly device for bridge steel structure segments according to claim 1, characterized in that: The shift assembly includes a plurality of slots (24) formed at the bottom of the base (6), one of which has a protrusion (25) that is adapted to it inserted inside.

8. The automatic alignment and assembly device for bridge steel structure segments according to claim 7, characterized in that: The cross-sectional shape of both the slot (24) and the bump (25) is set to T-shape.

9. The automatic alignment and assembly device for bridge steel structure segments according to claim 1, characterized in that: A rubber pad is fixedly installed on the surface of the clamp (3).

Images