Steel structure cross column assembly type temporary fastening fixture
By designing a steel structure cross-column prefabricated temporary fastening fixture, and utilizing a bidirectional threaded rod and a limiting mechanism to achieve rapid clamping and release, the problem of low disassembly and assembly efficiency of mechanical fixtures is solved, thereby improving production efficiency and assembly accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI HONGMA STEEL STRUCTURE CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-08-04
AI Technical Summary
Existing mechanical fixtures have low assembly and disassembly efficiency during continuous production of cross-shaped columns, which affects production efficiency.
Design a steel structure cross-column assembled temporary fastening clamp consisting of a sliding frame, connecting frame, clamping plate, bidirectional threaded rod, and limiting mechanism. The clamping plate is driven by the bidirectional threaded rod to achieve rapid clamping and release. Combined with the limiting mechanism and handle, it can achieve rapid unlocking and reset. The buffer pad on the top of the clamping plate reduces impact damage.
It significantly improves assembly efficiency, shortens repositioning time, increases continuous production efficiency, and ensures the accuracy of process partition installation position and assembly precision.
Smart Images

Figure CN224587341U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure cross column assembly technology, and in particular to a temporary fastening clamp for steel structure cross column assembly. Background Technology
[0002] The cross-shaped steel column is formed by two sets of H-beams or an orthogonal combination of H-beams and T-beams to create a cross-shaped cross section. It has no obvious weak axis and its bending bearing capacity is superior to that of ordinary H-beam columns. It has high strength and good ductility, and its seismic bearing capacity is superior to that of traditional column types. However, its torsional performance is slightly weaker than that of circular tube columns and box columns. Before assembling the cross-shaped column, the assembly reference line needs to be marked on the ends of the H-beams and T-beams. The process partition is used for preliminary positioning, and the components are tightened with jacks. After the H-beams are placed on the assembly platform, the process partition needs to be precisely assembled according to the design position and used as a reference surface for the preliminary positioning of the T-beams and H-beams.
[0003] When assembling process partitions, temporary clamps are required to clamp them. Generally, the clamping force is maintained by human power through the first bolt, cam, or lever mechanism, which utilizes the self-locking property of the threaded pair. Currently, when mechanical clamps are used in continuous production with cross columns, the first bolt-fastened clamps need to be disassembled one by one, and each disassembly and assembly takes about five minutes, which will reduce production efficiency.
[0004] Therefore, it is necessary to design a steel structure cross-column prefabricated temporary fastening fixture to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the disadvantage of low disassembly and assembly efficiency during continuous production, the purpose of this utility model is to provide a temporary fastening fixture for steel structure cross-column assembly.
[0006] The technical solution is as follows: A steel structure cross-column assembled temporary fastening clamp, characterized in that it includes a sliding frame, a connecting frame, a handle, a clamping plate, a double-threaded rod, a guide post, a sliding frame, a first bolt, a clamping frame, a roller, a second bolt, a limiting plate, a knob, a guide rod, and a limiting mechanism. Connecting frames are fixedly connected to both sides of the two sliding frames, handles are fixedly connected to the top of the two sliding frames, clamping plates are symmetrically slidably connected between the two sliding frames, double-threaded rods are threadedly connected to the left side of the two clamping plates, and the double-threaded rods are rotatably connected to the corresponding sliding frames on both sides. Guide posts are symmetrically fixedly connected to the bottom of the two sliding frames, and the two guide posts on the same side slide against each other. The two sliding frames are connected by sliding frames. The lower part of each sliding frame is rotatably connected to a first bolt. The lower part of each sliding frame is slidably connected to a clamping frame. The middle of each clamping frame is threadedly connected to the corresponding first bolt. The side of each clamping frame that is close to each other is rotatably connected to four rollers. The middle of each sliding frame is threadedly connected to a second bolt. The side of each second bolt that is close to each other is rotatably connected to a limit plate. The side of each second bolt that is far from each other is fixedly connected to a knob. The side of each limit plate that is far from each other is fixedly connected to two guide rods. The two guide rods on the same side are slidably connected to the corresponding sliding frame. The bottom of each sliding frame is provided with a limiting mechanism.
[0007] More preferably, the limiting mechanism includes a support plate, a locking block, a spring, a connecting rod, a handle, and a guide plate. Two support plates are fixedly connected to the bottom of each of the two sliding frames. The two support plates are located between two corresponding guide posts. A locking block is slidably connected to each support plate. A spring is connected between each locking block and the corresponding support plate. The two locking blocks on the same side, on opposite sides, are engaged with the corresponding sliding frame. A connecting rod is slidably connected to the middle of each of the two sliding frames. A handle is fixedly connected to the top of each of the two connecting rods. A guide plate is fixedly connected to the bottom of each of the two connecting rods. The guide plate is slidably connected to two locking blocks on the same side.
[0008] More preferably, the limiting mechanism includes a support plate, a locking block, a spring, a connecting rod, a handle, and a guide plate. Two support plates are fixedly connected to the bottom of each of the two sliding frames. The two support plates are located between two corresponding guide posts. A locking block is slidably connected to each support plate. A spring is connected between each locking block and the corresponding support plate. The two locking blocks on the same side, on opposite sides, engage with the corresponding sliding frame. A connecting rod is slidably connected to the middle of each of the two sliding frames. A handle is fixedly connected to the top of each of the two connecting rods. A guide plate is fixedly connected to the bottom of each of the two connecting rods. The guide plate slides with the two locking blocks on the same side.
[0009] More preferably, it also includes rubber rollers, with rubber rollers rotatably connected to both sides of the bottom of the two clamps.
[0010] More preferably, it also includes pointers, with pointers fixedly connected between the two clamps on their sides that are close to each other.
[0011] More preferably, it also includes a cushioning pad, with the cushioning pad fixedly connected to the top of both clamps.
[0012] More preferably, the clamping plate has a hollow structure, which reduces weight and manual labor when moving the clamp.
[0013] The beneficial effects of this utility model are as follows: 1. This utility model achieves rapid clamping and release of the process partition by driving the clamping plate to slide in a linkage manner through a bidirectional threaded rod, which significantly improves the assembly efficiency and solves the problem of time-consuming disassembly and assembly of traditional bolt-type clamps.
[0014] 2. This utility model achieves rapid unlocking and resetting between the card block and the sliding frame through the limiting mechanism and the handle, so that the card can be easily moved to the next position after welding, which greatly shortens the repetitive positioning time and improves continuous production efficiency.
[0015] 3. This utility model reduces the risk of bumps and damage during the assembly of process partitions by using a buffer pad on the top of the clamping plate.
[0016] 4. This utility model achieves precise positioning of the clamp on the H-beam by aligning the pointer with the baseline, avoiding errors from manual visual inspection, ensuring accurate installation of the process partition, and improving assembly precision. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a three-dimensional structural diagram of the connecting frame, handle, and clamping plate of this utility model.
[0019] Figure 3 This is a three-dimensional structural diagram of the support plate, locking block, and spring components of this utility model.
[0020] Figure 4 This is a three-dimensional structural diagram of the clamping plate and rubber roller components of this utility model.
[0021] Figure 5 This is a three-dimensional structural diagram of the clamping frame, rollers, and pointer components of this utility model.
[0022] The components in the attached diagram are labeled as follows: 1: Sliding frame, 2: Connecting frame, 3: Handle, 4: Clamping plate, 5: Two-way threaded rod, 6: Guide column, 7: Sliding frame, 8: First bolt, 9: Clamping frame, 10: Roller, 11: Second bolt, 12: Limiting plate, 13: Knob, 14: Guide rod, 15: Support plate, 16: Locking block, 17: Spring, 18: Connecting rod, 181: Handle, 19: Guide plate, 20: Rubber roller, 21: Pointer, 22: Buffer pad. Detailed Implementation
[0023] Example: A temporary fastening fixture for assembled steel cross-shaped columns, such as... Figure 1-5 As shown, the fixture includes a sliding frame 1, a connecting frame 2, a handle 3, a clamping plate 4, a bidirectional threaded rod 5, a guide post 6, a sliding frame 7, a first bolt 8, a clamping frame 9, a roller 10, a second bolt 11, a limiting plate 12, a knob 13, a guide rod 14, and a limiting mechanism. The two sliding frames 1 are connected to the connecting frame 2 on both the front and rear sides by bolts. A handle 3 is welded to the top of each of the two sliding frames 1. A clamping plate 4 is symmetrically slidably connected between the two sliding frames 1. The clamping plate 4 has a hollow structure to reduce weight and manual labor when moving the fixture. A bidirectional threaded rod 5 is threadedly connected between the left sides of the two clamping plates 4. The bidirectional threaded rod 5 is rotatably connected to the corresponding sliding frame 1 on both the front and rear sides. Guide posts 6 are symmetrically welded to the bottom of each of the two sliding frames 1. The two guide posts 6 on the same side... Each sliding frame 1 is slidably connected to a sliding frame 7. A first bolt 8 is rotatably connected to the lower, opposite sides of each sliding frame 7. Clamping frames 9 are slidably connected between the front and rear sides of the lower part of each sliding frame 7. The middle of each clamping frame 9 is threadedly connected to the corresponding first bolt 8. Four rollers 10 are rotatably connected to the sides of each clamping frame 9 that are close to each other. A second bolt 11 is threadedly connected to the middle of each sliding frame 7. A limiting plate 12 is rotatably connected to the sides of each second bolt 11 that are close to each other. A knob 13 is welded to the sides of each second bolt 11 that are far apart from each other. Two guide rods 14 are welded to the sides of each limiting plate 12 that are far apart from each other. The two guide rods 14 on the same side are slidably connected to the corresponding sliding frame 7. A limiting mechanism is provided at the bottom of each sliding frame 1.
[0024] like Figure 1 The diagram also includes a buffer pad 22. Both clamping plates 4 have a buffer pad 22 glued to their tops to reduce collisions and wear between the process partition and the clamping plate 4 when it is placed.
[0025] Operators can apply the corresponding technical solutions in this device to the cross-column assembly technology according to specific circumstances. When this device is needed to assist in clamping operations, firstly, place the clamping plates 4 on both sides of the horizontally placed H-beams. Then, rotate the first bolt 8 clockwise to make the clamping frames 9 slide towards each other. When they slide a certain distance, the rollers 10 will abut against both sides of the H-beams. Finally, tighten the first bolt 8 to limit the clamping frames 9 and simultaneously correct the device. At this point, the device can be pushed to slide on the H-beams. After pushing the device to the position where the process partition needs to be welded, rotate the knob 13 clockwise to move the limiting plates 12 towards each other until they abut against both sides of the H-beams. Tighten the knob 13. The limiting plate 12 can be pressed against both sides of the H-beam to complete the fixation. Then, rotate the double-threaded rod 5 clockwise to make the clamping plates 4 slide away from each other. When the space between the clamping plates 4 is large enough to put in the process partition, stop rotating. Then, put the process partition to be welded into the gap between the clamping plates 4. When the process partition is put in, the buffer pad 22 can buffer the contact between the process partition and the clamping plates 4 to reduce bumping and wear. Then, reverse the double-threaded rod 5 to make the clamping plates 4 slide closer to each other. When rotated to a certain angle, the clamping plates 4 will abut against the process partition. When the process partition is clamped, stop rotating the double-threaded rod 5. At this time, welding and assembly can be carried out. After welding is completed, reverse the double-threaded rod 5 to remove the fixation of the process partition.
[0026] like Figure 3 The limiting mechanism shown includes a support plate 15, a locking block 16, a spring 17, a connecting rod 18, a handle 181, and a guide plate 19. Two support plates 15 are welded to the bottom of each of the two sliding frames 1. The two support plates 15 are located between two corresponding guide posts 6. A locking block 16 is slidably connected to each support plate 15. A spring 17 is connected between each locking block 16 and the corresponding support plate 15. The two locking blocks 16 on the same side are locked to the corresponding sliding frame 7 on the side that is far apart from each other. A connecting rod 18 is slidably connected to the middle of each of the two sliding frames 1. A handle 181 is welded to the top of each of the two connecting rods 18. A guide plate 19 is welded to the bottom of each of the two connecting rods 18. The guide plate 19 is slidably connected to the two locking blocks 16 on the same side.
[0027] When the next set of process partitions needs to be welded, first reverse knob 13 to remove the device from the H-beam. Then, the operator pulls handle 181, causing connecting rod 18 and guide plate 19 to move upwards together. This causes guide plate 19 to slide the locking block 16 on the same side closer together. Spring 17 is compressed. When locking block 16 slides a certain distance, it will disengage from sliding frame 7. Then, pull sliding frame 1, clamping plate 4, and guide post 6 upwards together. Once clamping plate 4 moves upwards and is no longer within the process partition area, the device can be moved to the next location where a process partition needs to be installed. At this point, guide post 6 will push sliding frame 7 to move as well. Furthermore, the roller 10 will roll on the H-beam and limit the device. When the clamping plate 4 moves to a position not above the process partition, the handle 3 can be pushed down, and the sliding frame 1 and the clamping plate 4 will reset downward together. When the clamping plate 4 resets to the initial position, the handle 181 can be released. At this time, the spring 17 will release the restoring force, push the locking block 16 to reset, and make the locking block 16 re-engage with the sliding frame 7. Then, push the device again to the position where the process partition needs to be installed to prepare for the next welding. After the welding is completed, reverse the first bolt 8 and the second bolt 11 to drive the clamping frame 9 and the limiting plate 12 to reset. Then, lift the device upward through the handle 3 to complete the disassembly.
[0028] like Figure 1 and Figure 4 The diagram also includes rubber rollers 20, with rubber rollers 20 rotatably connected to the bottom left and right sides of the two clamping plates 4.
[0029] When the sliding frame 1 and the clamping plate 4 are reset downwards, the rubber roller 20 will abut against the H-beam. When the device is pushed, the rubber roller 20 will slide on the H-beam, reducing friction on the device and saving the operator's energy.
[0030] like Figure 5 The diagram also includes pointers 21, which are welded between the two clamping frames 9 on their sides that are close to each other, so that the clamping position can be quickly aligned with the reference line when adjusting the clamping position.
[0031] When moving this device to the next location where a process partition needs to be installed, a line can be drawn at the desired installation location. Then, by aligning the pointer 21 with the marked line, the device can be aligned with the next location where a process partition needs to be installed.
Claims
1. A temporary prefabricated fastening fixture for a steel structure cross-shaped column, characterized in that: The system includes a sliding frame (1), a connecting frame (2), a handle (3), a clamping plate (4), a two-way threaded rod (5), a guide post (6), a sliding frame (7), a first bolt (8), a clamping frame (9), a roller (10), a second bolt (11), a limiting plate (12), a knob (13), a guide rod (14), and a limiting mechanism. Connecting frames (2) are fixedly connected to both sides of the two sliding frames (1). Handles (3) are fixedly connected to the top of both sliding frames (1). Clamping plates (4) are symmetrically slidably connected between the two sliding frames (1). Two-way threaded rods (5) are threadedly connected to the left side of the two clamping plates (4). Both sides of the two-way threaded rods (5) are rotatably connected to the corresponding sliding frames (1). Guide posts (6) are symmetrically fixedly connected to the bottom of both sliding frames (1). Sliding connections are made between the two guide posts (6) on the same side. The frame (7) has a first bolt (8) rotatably connected to the lower part of each of the two sliding frames (7). A clamping frame (9) is slidably connected between the lower parts of the two sliding frames (7). The middle part of each clamping frame (9) is threadedly connected to the corresponding first bolt (8). Four rollers (10) are rotatably connected to the side of the two clamping frames (9) that are close to each other. A second bolt (11) is threadedly connected to the middle part of each of the two sliding frames (7). A limit plate (12) is rotatably connected to the side of the two second bolts (11) that are close to each other. A knob (13) is fixedly connected to the side of the two second bolts (11) that are far apart from each other. Two guide rods (14) are fixedly connected to the side of the two limit plates (12) that are far apart from each other. The two guide rods (14) on the same side are slidably connected to the corresponding sliding frame (7). A limit mechanism is provided at the bottom of each of the two sliding frames (1).
2. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 1, characterized in that: The limiting mechanism includes a support plate (15), a locking block (16), a spring (17), a connecting rod (18), a handle (181), and a guide plate (19). The bottom of each of the two sliding frames (1) is fixedly connected to two support plates (15). The two support plates (15) are located between two corresponding guide columns (6). Each support plate (15) is slidably connected to a locking block (16). Each locking block (16) is connected to a corresponding support plate (15) by a spring (17). The two locking blocks (16) on the same side are locked to the corresponding sliding frame (7) on the side away from each other. The middle of each of the two sliding frames (1) is slidably connected to a connecting rod (18). The top of each of the two connecting rods (18) is fixedly connected to a handle (181). The bottom of each of the two connecting rods (18) is fixedly connected to a guide plate (19). The guide plate (19) is slidably connected to the two locking blocks (16) on the same side.
3. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 2, characterized in that: The limiting mechanism includes a support plate (15), a locking block (16), a spring (17), a connecting rod (18), a handle (181), and a guide plate (19). The bottom of each of the two sliding frames (1) is fixedly connected to two support plates (15). The two support plates (15) are located between two corresponding guide columns (6). Each support plate (15) is slidably connected to a locking block (16). Each locking block (16) is connected to a corresponding support plate (15) by a spring (17). The two locking blocks (16) on the same side are locked to the corresponding sliding frame (7) on the side away from each other. The middle of each of the two sliding frames (1) is slidably connected to a connecting rod (18). The top of each of the two connecting rods (18) is fixedly connected to a handle (181). The bottom of each of the two connecting rods (18) is fixedly connected to a guide plate (19). The guide plate (19) is slidably engaged with the two locking blocks (16) on the same side.
4. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 3, characterized in that: It also includes rubber rollers (20), and the bottom sides of the two clamps (4) are rotatably connected to rubber rollers (20).
5. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 4, characterized in that: It also includes a pointer (21), and the pointer (21) is fixedly connected between the two clamps (9) on the side that is close to each other.
6. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 5, characterized in that: It also includes a cushioning pad (22), and the top of both clamps (4) are fixedly connected with the cushioning pad (22).
7. A temporary prefabricated fastener for a steel structure cross-shaped column according to claim 6, characterized in that: The clamp (4) is a hollow structure.