A connecting and positioning device for building steel structures
By employing a multi-point uniform clamping and synchronous movement mechanism for the workpiece clamping system, the problem of manual alignment and misalignment of steel components is solved, achieving high-precision alignment and stable connection, thereby improving the load-bearing capacity and safety of building steel structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIRST DIV GROUP CONSTR & DEV
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-02
AI Technical Summary
In the construction of steel structures, the manual alignment of steel components is prone to displacement and misalignment, which leads to increased welding errors and affects the stability and load-bearing capacity of the structure.
The workpiece clamping mechanism, including a limiting ring, a gripper assembly, a threaded sleeve, and a tie threaded rod, ensures the alignment accuracy of the steel components and reduces welding errors through a multi-point uniform clamping and synchronous movement mechanism.
It improves positioning accuracy and stability, reduces welding errors, and enhances the overall load-bearing capacity and safety of the structure.
Smart Images
Figure CN224314629U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of auxiliary equipment for steel structure construction, and in particular relates to a connection and positioning device for building steel structures. Background Technology
[0002] Steel structures, as one of the most widely used structural forms in modern construction engineering, are widely used in various buildings such as industrial plants, high-rise buildings, bridges, and stadiums due to their advantages such as high strength, light weight, short construction period, and good seismic performance. The core of steel structures lies in the connection methods between various steel components, including welding, bolting, and riveting. The quality of these connection methods directly affects the stability and safety of the entire building structure.
[0003] In the construction of steel structures, it is often necessary to connect two or more steel components on-site to form a complete load-bearing structural system. Traditional connection methods often involve welding, but this method requires high precision in on-site conditions, ensuring good alignment accuracy and stable clamping. Current technology often involves manually aligning the joint positions of the steel components, then using simple clamps or auxiliary support tools for positioning, and welding only after the position is adjusted. However, in practice, due to the large size and heavy weight of the steel components, manual alignment is prone to misalignment and other problems, which not only increase welding errors but may also cause uneven stress distribution in the structure, affecting its subsequent service life and load-bearing capacity. Utility Model Content
[0004] The purpose of this invention is to provide a connection and positioning device for building steel structures to solve the problem of easy displacement and misalignment during the manual alignment process of steel structure connections.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A connection and positioning device for building steel structures, comprising: a workpiece clamping mechanism and a threaded rod, wherein the workpiece clamping mechanism includes a limiting ring, a jaw assembly and a threaded sleeve, and at least three jaw assemblies are mounted on the limiting ring via a connecting seat; the jaw assembly includes a screw mounting seat, a clamping threaded rod, a guide rod, a mounting base and a chuck, the connecting seat is connected to the limiting ring via a first limiting bolt, the screw mounting seat is fixedly connected to the connecting seat, the screw mounting seat is provided with a screw hole and a guide hole, and the clamping threaded rod is mounted in the screw hole. Inside, the guide rod is installed in the guide hole, one side of the mounting base is fixedly connected to one end of the guide rod, one end of the clamping threaded rod is connected to the mounting base through a bearing, and the chuck is installed on the other side of the mounting base through an ear plate; there are two threaded sleeves, which are fixed to the outside of the limiting ring, and the two threaded sleeves are positioned opposite each other along the diameter direction of the limiting ring; two tie threaded rods are respectively installed in the corresponding threaded sleeves of the two workpiece clamping mechanisms, and the workpiece clamping mechanisms can be moved synchronously towards each other or away from each other by rotating the tie threaded rods.
[0006] The connection and positioning device for building steel structures described above further includes four gripper assemblies, namely a first gripper assembly, a second gripper assembly, a third gripper assembly, and a fourth gripper assembly, which are equidistantly arranged on the limiting ring; the threaded sleeves are respectively arranged between the first gripper assembly and the second gripper assembly, and between the third gripper assembly and the fourth gripper assembly.
[0007] The present invention provides a connecting and positioning device for building steel structures as described above. Further, the number of guide holes is two, the number of guide rods is two, the guide rods are respectively installed in the guide holes, and the screw hole is located between the guide holes.
[0008] The present invention provides a connecting and positioning device for building steel structures as described above. Further, the other end of the clamping threaded rod is provided with a first operating part. The first operating part includes a collar and a plurality of levers, and the levers are fixed at equal intervals on the outside of the collar.
[0009] The connecting and positioning device for building steel structures described above further includes a second limiting bolt. The screw mounting base is provided with a bolt mounting hole that communicates with the screw hole, and the second limiting bolt is installed in the bolt mounting hole.
[0010] The present invention provides a connecting and positioning device for building steel structures as described above. In a further embodiment, the clamp is provided with a V-shaped clamping groove, and a buffer pad is installed in the clamping groove.
[0011] The present invention provides a connecting and positioning device for building steel structures as described above. Further, the second operating part in the middle of the threaded rod includes a collar and a plurality of levers, the levers being fixed at equal intervals on the outer side of the collar.
[0012] The beneficial effects of this invention are: improved positioning accuracy and stability, and reduced welding errors. By using at least three gripper assemblies (preferably four equidistantly arranged) in conjunction with guide rods and threaded clamping rods, multi-point uniform clamping is achieved, ensuring the fixation of steel components (such as H-beams and channel steel). Combined with the synchronous moving mechanism of the threaded rods (based on a bidirectional thread design), offset during manual alignment is eliminated, reducing welding alignment errors and improving the overall load-bearing capacity and safety of the structure. Attached Figure Description
[0013] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0014] Figure 1 This is a front view of a workpiece clamping mechanism according to an embodiment of the present invention;
[0015] Figure 2 This is a rear view of a workpiece clamping mechanism according to an embodiment of the present invention;
[0016] Figure 3 for Figure 2 A magnified view of a portion of the gripper area;
[0017] Figure 4 This is a schematic diagram of a connector and a screw mounting base according to one embodiment;
[0018] Figure 5 This is a schematic diagram of the overall connection and positioning device for building steel structures according to this utility model.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 100. Workpiece clamping mechanism; 10. Limiting ring; 20. Clamping jaw assembly; 21. Connecting seat; 22. Screw mounting seat; 221. Screw hole; 222. Guide hole; 23. Clamping threaded rod; 231. Bearing; 24. First operating part; 25. Guide rod; 26. Mounting base plate; 27. Chuck; 28. Ear plate; 29. Buffer pad; 30. Threaded sleeve; 40. Tie threaded rod; 50. Second operating part; 60. First limiting bolt; 70. Second limiting bolt. Detailed Implementation
[0021] In the following description, embodiments of the connecting and positioning device for building steel structures according to the present invention will be described with reference to the accompanying drawings.
[0022] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.
[0023] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.
[0024] Figure 1 This invention illustrates a connection and positioning device for building steel structures according to an embodiment of the present invention, comprising:
[0025] The workpiece clamping mechanism 100 and the threaded rod 40 are connected. The workpiece clamping mechanism 100 includes a limiting ring 10, a jaw assembly 20 and a threaded sleeve 30. At least three jaw assemblies 20 are mounted on the limiting ring 10 via a connecting seat 21.
[0026] The gripper assembly 20 includes a screw mounting base 22, a clamping threaded rod 23, a guide rod 25, a mounting base plate 26, and a chuck 27;
[0027] The connecting seat 21 is connected to the limiting ring 10 through the first limiting bolt 60. According to the above installation method, the gripper assembly 20 is a detachable modular structure, which makes it easy to replace the gripper assembly of different sizes or shapes according to the different steel structure accessories required for positioning, so as to adapt to steel components with different cross-sectional shapes (such as H-beams, channel steel, angle steel, etc.), thereby improving versatility and maintainability.
[0028] The screw mounting base 22 is fixedly connected to the connecting base 21, specifically, the screw mounting base 22 and the connecting base 21 can be fixedly connected by bolts and nuts. The screw mounting base 22 has a screw hole 221 and a guide hole 222. The threaded rod 23 is installed in the screw hole 221, and the guide rod 25 is installed in the guide hole 222. The guide rod 25 and the guide hole 222 are clearance-fitted to restrict the movement direction of the mounting base plate 26. In a preferred embodiment of the connection and positioning device for building steel structures, such as Figure 3 and Figure 4As shown, there are two guide holes 222 and two guide rods 25, which are respectively installed in the guide holes 222. The screw holes 221 are located between the guide holes 222. In a preferred embodiment of the connection and positioning device for building steel structures, as... Figure 3 As shown, the other end of the clamping threaded rod 23 is provided with a first operating part 24. The first operating part 24 includes a collar and a plurality of levers, which are fixed at equal intervals on the outside of the collar. The number of levers can be 4 to 6, which facilitates manual or tool-assisted rotation.
[0029] The mounting base plate 26 is a rectangular metal plate, preferably made of Q235 or Q345 material, with a thickness of 4-8mm. It is connected to the guide rod 25 by welding. One side of the mounting base plate 26 is fixedly connected to one end of the guide rod 25. One end of the clamping threaded rod 23 is connected to the mounting base plate 26 via a bearing 231. The chuck 27 is mounted on the other side of the mounting base plate 26 via an ear plate 28. Preferably, the ear plate 28 is hinged to the chuck 27, allowing the chuck 27 to adapt to the workpiece surface angle. In a preferred embodiment of the connection and positioning device for building steel structures, such as... Figure 3 As shown, the chuck 27 has a V-shaped clamping groove, and a buffer pad 29 is installed in the clamping groove. The opening angle of the V-shaped clamping groove is preferably 60°, which is suitable for clamping common round tubes or angle steel profiles. The buffer pad 29 in the groove is made of rubber or silicone, which has a certain compressive elasticity and can prevent the workpiece from being scratched or deformed by squeezing during the clamping process.
[0030] Two threaded sleeves 30 are provided, fixed to the outside of the limiting ring 10. The two threaded sleeves 30 are positioned opposite each other along the diameter of the limiting ring 10. Two connecting threaded rods are installed in the corresponding threaded sleeves 30 of the two workpiece clamping mechanisms 100. Rotating the connecting threaded rods causes the workpiece clamping mechanisms 100 to move synchronously towards each other or away from each other. Synchronous movement is based on the symmetrical layout of the threaded sleeves 30 and the bidirectional thread design of the connecting threaded rods: for example, when the connecting threaded rods rotate clockwise, the two workpiece clamping mechanisms 100 move towards each other; when they rotate counterclockwise, they move away from each other. In a preferred embodiment of the connection and positioning device for building steel structures, such as... Figure 5 As shown, the second operating part 50 in the middle of the threaded rod includes a collar and multiple levers, which are fixed at equal intervals on the outside of the collar. The number of levers can be 4 to 6, which facilitates manual or tool-assisted rotation.
[0031] Combination Figure 5The operation process of the connection and positioning device for building steel structures described in the above embodiment is as follows: First, the construction personnel place the limiting rings of the two workpiece clamping mechanisms onto the two building steel structure parts that need to be connected (e.g., round steel with a diameter greater than 5 cm that needs to be welded). Then, two threaded rods are connected to two sets of threaded sleeves on the two limiting rings. Next, by synchronously rotating the clamping threaded rods of the gripper assembly, the clamping threaded rods move spirally in the threaded holes, driving the mounting base to move (stable movement of the mounting base is achieved by sliding the guide rod in the guide hole). This causes the clamps to move towards the building steel structure parts until all the clamps of the gripper assembly are tightly fitted to the outside of the building steel structure parts, thus achieving the alignment of the two building steel structure parts. Further, by synchronously rotating the two threaded rods, the two threaded rods can be rotated to drive the limiting rings to move relative to each other, thereby aligning the two building steel structure parts that need to be connected. Finally, the two building steel structure parts are fixedly connected by welding. After welding is completed, the threaded rods are rotated in the opposite direction to remove the device. Of course, the connection and positioning device for building steel structures of this utility model also has other application scenarios. For example, it can simultaneously perform pre-welding positioning and fixing of three building steel structure parts, and install three sets of workpiece clamping mechanisms on the tie threaded rod to fix the building steel structure parts respectively. By using at least three gripper assemblies (preferably four equidistantly arranged) in conjunction with the guide rod and the clamping threaded rod, multi-point uniform clamping is achieved to ensure the fixation of steel components (such as H-beams and channel steel); combined with the synchronous moving mechanism of the tie threaded rod (based on bidirectional thread design), the offset during manual alignment is eliminated, the welding alignment error is reduced, and the overall load-bearing capacity and safety of the structure are improved.
[0032] In a preferred embodiment of a connection and positioning device for building steel structures, such as Figure 1 and Figure 2 As shown, there are four gripper assemblies 20, namely the first gripper assembly 20, the second gripper assembly 20, the third gripper assembly 20, and the fourth gripper assembly 20, which are equidistantly arranged on the limiting ring 10. Threaded sleeves 30 are respectively arranged between the first and second gripper assemblies 20, and between the third and fourth gripper assemblies 20. That is, the gripper assemblies 20 are fixedly installed by four connecting seats 21 equidistantly distributed on the limiting ring 10, thereby forming a closed and stable structure during the clamping process, which can ensure the coaxiality and stability of the clamping of large steel components.
[0033] In a preferred embodiment of a connection and positioning device for building steel structures, such as Figure 2 As shown, it also includes a second limiting bolt 70. The screw mounting base 22 has a bolt mounting hole that communicates with the screw hole 221, and the second limiting bolt 70 is installed in the bolt mounting hole. After the second limiting bolt 70 is screwed in, it can tighten and clamp the threaded rod 23 to prevent accidental loosening after clamping.
[0034] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.
Claims
1. A connection and positioning device for building steel structures, characterized in that, include: The workpiece clamping mechanism (100) and the threaded rod (40) are provided. The workpiece clamping mechanism (100) includes a limiting ring (10), a jaw assembly (20), and a threaded sleeve (30). At least three jaw assemblies (20) are mounted on the limiting ring (10) via a connecting seat (21). The jaw assembly (20) includes a screw mounting seat (22), a clamping threaded rod (23), a guide rod (25), a mounting base (26), and a chuck (27). The connecting seat (21) is connected to the limiting ring (10) via a first limiting bolt (60). The screw mounting seat (22) is fixedly connected to the connecting seat (21). The screw mounting seat (22) is provided with a screw hole (221) and a guide hole (222). The clamping threaded rod (23) is installed in the screw hole (221), and the guide rod (25) is installed in the threaded rod hole (221). The mounting base (26) is installed in the guide hole (222), one side of the mounting base (26) is fixedly connected to one end of the guide rod (25), one end of the clamping threaded rod (23) is connected to the mounting base (26) through the bearing (231), and the chuck (27) is installed on the other side of the mounting base (26) through the ear plate (28); there are two threaded sleeves (30), the threaded sleeves (30) are fixed on the outside of the limiting ring (10), and the two threaded sleeves (30) are positioned opposite each other along the diameter direction of the limiting ring (10); two tie threaded rods (40) are respectively installed in the corresponding threaded sleeves (30) of the two workpiece clamping mechanisms (100), and the workpiece clamping mechanisms (100) can be moved synchronously towards each other or away from each other by rotating the tie threaded rods (40).
2. The connection and positioning device for building steel structures according to claim 1, characterized in that, The number of gripper assemblies (20) is four, namely the first gripper assembly (20), the second gripper assembly (20), the third gripper assembly (20) and the fourth gripper assembly (20), which are equidistantly arranged on the limiting ring (10); the threaded sleeve (30) is respectively arranged between the first gripper assembly (20) and the second gripper assembly (20), and between the third gripper assembly (20) and the fourth gripper assembly (20).
3. The connection and positioning device for building steel structures according to claim 1, characterized in that, There are two guide holes (222) and two guide rods (25). The guide rods (25) are installed in the guide holes (222) respectively, and the screw hole (221) is located between the guide holes (222).
4. The connection and positioning device for building steel structures according to claim 1, characterized in that, The other end of the clamping threaded rod (23) is provided with a first operating part (24), which includes a collar and a plurality of levers, the levers being fixed at equal intervals on the outside of the collar.
5. The connection and positioning device for building steel structures according to claim 1, characterized in that, It also includes a second limiting bolt (70), the screw mounting base (22) is provided with a bolt mounting hole that communicates with the screw hole (221), and the second limiting bolt (70) is installed in the bolt mounting hole.
6. The connection and positioning device for building steel structures according to claim 1, characterized in that, The chuck (27) is provided with a V-shaped clamping groove, and a buffer pad (29) is installed in the clamping groove.
7. The connection and positioning device for building steel structures according to claim 1, characterized in that, The second operating part (50) in the middle of the threaded rod (40) includes a collar and a plurality of levers, which are fixed at equal intervals on the outside of the collar.