A steel structure drilling fixture

Abstract

This utility model relates to the field of steel structure processing technology, specifically a steel structure drilling fixture, including a base and a clamping device. The base has two horizontally movable frames, each with a mounting seat, and the mounting seat has a base plate. The clamping device includes a rotating shaft rotatably connected to the mounting seat, a first gear coaxially mounted on the rotating shaft, two horizontally symmetrically distributed and rotatably connected first threaded rods inside the mounting seat, a second gear coaxially mounted on the first threaded rods, a movable block threadedly connected to the first threaded rods, a connecting plate mounted on the movable block, a clamping plate mounted on the connecting plate, and a first handle mounted on the rotating shaft. The first and second gears are meshed, the movable block is slidably disposed inside the mounting seat, and anti-slip pads are provided on both the mounting seat and the clamping plate. This utility model optimizes the clamping and fixing effect on steel structure workpieces, thereby improving the stability of the workpiece during processing and enhancing the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a steel structure drilling fixture. Background Technology

[0002] As the main load-bearing system of modern buildings, steel structures are manufactured through high-precision cutting and cold bending processes. The surface of the components undergoes composite anti-corrosion treatment, and the joint connections primarily use high-strength bolt friction connections, supplemented by partial penetration welds. This modular construction method achieves stress-free assembly through pre-drilling, effectively avoiding the residual deformation problems caused by traditional welding.

[0003] Chinese patent CN221231643U discloses a steel structure drilling jig, including a base with a jig box on top. A motor is fixedly connected inside the base, and one end of a drive threaded rod is fixedly connected to the output end of the motor. The other end of the drive threaded rod is rotatably connected to a mounting sleeve, which is fixedly connected inside the base. A limiting block is provided in the middle of the drive threaded rod, and drive sleeves are threadedly connected to both sides of the limiting block on the outside of the drive threaded rod. A support seat is fixedly connected to one side of each of the two drive sleeves. This jig, by incorporating an adjusting plate, can be adapted to clamp I-beams or U-shaped steel. Furthermore, by adjusting the direction of the jig box via a rotating shaft, the device can clamp ordinary steel by compression or triangular steel by the lower groove and pressure plate, thus adapting to clamp various different shaped steel profiles.

[0004] However, the above technical solution has the following shortcomings: the clamp can clamp structures of different shapes, but it can only clamp and fix the steel structure in the vertical direction and cannot clamp and fix it in the horizontal direction, which reduces the stability effect on the steel structure. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a steel structure drilling fixture that can optimize the clamping and fixing effect on steel structure workpieces, thereby improving the stability of the workpieces during processing and enhancing the practicality of the device.

[0006] The present invention provides a steel structure drilling jig, comprising a base and a clamping device. The base has two horizontally movable frames, each with a mounting base, and the mounting base has a base plate. The clamping device includes a rotating shaft rotatably connected to the mounting base, a first gear coaxially mounted on the rotating shaft, two horizontally symmetrically distributed and rotatably connected first threaded rods inside the mounting base, a second gear coaxially mounted on the first threaded rods, a movable block threadedly connected to the first threaded rods, a connecting plate mounted on the movable block, a clamping plate mounted on the connecting plate, and a first handle mounted on the rotating shaft. The first and second gears are meshed together, the movable block is slidably disposed inside the mounting base, and anti-slip pads are provided on both the mounting base and the clamping plate.

[0007] Preferably, the clamping device further includes a fixed plate disposed on the mounting base, a screw threaded to the fixed plate, two guide rods symmetrically distributed and slidably connected to the fixed plate, a pressure plate disposed on the guide rods, and a rotating connector disposed on the pressure plate; the bottom end of the screw is inserted into the inner hole of the rotating connector and rotatedly connected.

[0008] Preferably, a second grip is provided on the screw, and an anti-slip pad is provided on the pressure plate.

[0009] Preferably, a drive assembly is provided on the base. The drive assembly includes a motor mounted on the base, a second threaded rod rotatably connected inside the base and having two threaded portions with opposite directions, and two guide blocks mounted on the movable frame. The motor and the second threaded rod are driven together. The two threaded portions are symmetrically distributed and threadedly connected to the movable frames on both sides respectively. The guide blocks are slidably mounted inside the base.

[0010] Preferably, the movable frame is provided with an auxiliary support assembly, which includes two support frames on the movable frame, a frame on the support frames, and a plurality of rollers linearly arranged and rotatably connected to the frame; the rollers are rotatably mounted on the base.

[0011] Preferably, a worktable is provided on the base, and the base plate is slidably connected to the worktable.

[0012] Preferably, the worktable is provided with two auxiliary support plates, and the auxiliary support plates are provided with two limiting plates.

[0013] Preferably, the limiting plate is provided with through holes, and the worktable is provided with multiple limiting holes arranged in a linear array.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This utility model, through its clamping device, can effectively clamp both ends of the steel structure workpiece. Furthermore, the clamping effect can be adjusted according to the size of the steel structure workpiece to improve the applicability of the device. It is also simple and convenient to operate and has good practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the clamping device of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the clamping device of this utility model;

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the base and worktable of this utility model.

[0020] Reference numerals: 1. Base; 2. Movable frame; 3. Mounting seat; 4. Base plate; 5. Rotating shaft; 6. First gear; 7. First threaded rod; 8. Second gear; 9. Movable block; 10. Connecting plate; 11. Clamping plate; 12. Fixing plate; 13. Screw; 14. Guide rod; 15. Pressure plate; 16. Rotary connector; 17. First grip; 18. Second grip; 19. Guide block; 20. Motor; 21. Second threaded rod; 22. Worktable; 23. Auxiliary support plate; 24. Limiting plate; 25. Support frame; 26. Frame; 27. Roller. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-4 As shown in the figure, the steel structure drilling fixture proposed in this embodiment includes a base 1 and a clamping device; the base 1 is provided with two horizontally movable frames 2, the movable frames 2 are provided with mounting seats 3, and the mounting seats 3 are provided with a base plate 4.

[0023] The clamping device includes a rotating shaft 5 rotatably connected to the mounting base 3, a first gear 6 coaxially mounted on the rotating shaft 5, two horizontally symmetrically distributed first threaded rods 7 rotatably connected inside the mounting base 3, a second gear 8 coaxially mounted on the first threaded rods 7, a moving block 9 threadedly connected to the first threaded rods 7, a connecting plate 10 mounted on the moving block 9, a clamping plate 11 mounted on the connecting plate 10, and a first handle 17 mounted on the rotating shaft 5; the first gear 6 and the second gear 8 are meshed together, the moving block 9 is slidably mounted inside the mounting base 3, and anti-slip pads are provided on both the mounting base 3 and the clamping plate 11.

[0024] The clamping device also includes a fixed plate 12 mounted on the mounting base 3, a screw 13 threadedly connected to the fixed plate 12, two guide rods 14 symmetrically distributed and slidably connected to the fixed plate 12, a pressure plate 15 mounted on the guide rods 14, and a rotating connector 16 mounted on the pressure plate 15; the bottom end of the screw 13 is inserted into the inner hole of the rotating connector 16 and rotatedly connected, a second grip 18 is provided on the screw 13, and an anti-slip pad is provided on the pressure plate 15.

[0025] A drive assembly is provided on the base 1. The drive assembly includes a motor 20 on the base 1, a second threaded rod 21 rotatably connected inside the base 1 and having two threaded portions with opposite directions, and two guide blocks 19 on the movable frame 2. The motor 20 and the second threaded rod 21 are driven together. The two threaded portions are symmetrically distributed and threadedly connected to the movable frame 2 on both sides respectively. The guide blocks 19 are slidably disposed inside the base 1.

[0026] In this embodiment, when it is necessary to fix and clamp the steel structure workpiece for drilling, one end of the workpiece is first placed on the base plate 4 and abuts against the mounting base 3. Then, the rotating shaft 5 is rotated by the first handle 17, and the rotating shaft 5 drives the first gear 6 to rotate. The first gear 6 and two second gears 8 mesh and drive the first threaded rod 7 to rotate. Then, the first threaded rod 7 is screwed into the moving block 9. The moving block 9 drives the clamping plates 11 on both sides to move closer to each other until the horizontal sides of the end of the workpiece are abutted and clamped. Then, the screw 13 is rotated by the second handle 18, and the screw 13 is screwed into the fixed plate 12. Under the guidance of the guide rod 14 and the rotating connector 16, the screw 13 drives the pressure plate. 15 moves downwards until the pressure plate 15 presses against the upper surface of the workpiece end. Finally, the motor 20 is started to drive the second threaded rod 21 to rotate, so that the two threaded parts are screwed into the movable frames 2 on both sides respectively. Under the guidance of the guide block 19, the movable frame 2 drives the mounting base 3 to move closer to each other until both ends of the workpiece abut against the mounting base 3, thereby completing the clamping process of the workpiece. It not only clamps the upper and lower surfaces of the workpiece, but also the end face and left and right sides of the workpiece, which fully ensures the clamping effect of the workpiece. At the same time, it realizes the ability to adjust the applicable range of the clamping effect according to the size of the workpiece, improves the applicability of the device, and is simple and convenient to operate, with good practicality.

[0027] It should be noted that the thread engagement structure in this device adopts a small thread helix angle and a large coefficient of friction to avoid the clamping effect from loosening due to minor vibrations during processing.

[0028] Example 2

[0029] like Figure 1 and Figure 2As shown, the steel structure drilling fixture proposed in this embodiment, compared with the first embodiment, has an auxiliary support assembly on the movable frame 2. The auxiliary support assembly includes two support frames 25 on the movable frame 2, a frame 26 on the support frame 25, and multiple rollers 27 linearly distributed and rotatably connected to the frame 26; the rollers 27 are rotatably mounted on the base 1.

[0030] In this embodiment, the support frame 25 and frame 26 provide auxiliary support for the middle part of the movable frame 2, thereby improving the resistance of the support frame 25 and extending its service life. When the movable frame 2 moves, the support frame 25 and frame 26 move with the movable frame 2, and the rollers 27 reduce the friction during movement, thereby reducing energy consumption and noise.

[0031] Example 3

[0032] like Figure 1 and Figure 4 As shown in the figure, the steel structure drilling fixture proposed in this embodiment has a worktable 22 on the base 1 compared with the first embodiment. The base plate 4 is slidably connected to the worktable 22. The worktable 22 is provided with two auxiliary support plates 23. The auxiliary support plates 23 are provided with two limiting plates 24. The limiting plates 24 are provided with through holes. The worktable 22 is provided with multiple limiting holes arranged in a linear array.

[0033] In this embodiment, the workbench 22 is used to place the workpiece. The workbench 22 is provided with a groove to provide an isolation space when drilling through the workpiece, preventing the drill bit from contacting the workbench 22. At the same time, the auxiliary support plate 23 not only plays a supporting role when clamping the workpiece, but also the position of the auxiliary support plate 23 can be adjusted by the limiting plate 24 to prevent the drilling position from coinciding with the position of the auxiliary support plate 23 in the vertical direction when drilling the same batch of workpieces. When adjusting the position of the auxiliary support plate 23, the auxiliary support plate 23 can be moved along the groove first. After moving to the selected position that will not affect the drilling, the bolt is screwed into the limiting hole and through the through hole to fix the auxiliary support plate 23. The operation is simple.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A steel construction drill jig, characterized in that, include: The base (1) has two horizontally movable frames (2) on it, and the movable frames (2) have mounting seats (3) on them, and the mounting seats (3) have base plates (4). The clamping device includes a rotating shaft (5) rotatably connected to the mounting base (3), a first gear (6) coaxially arranged on the rotating shaft (5), two horizontally symmetrically distributed and rotatably connected to the inside of the mounting base (3) first threaded rods (7), a second gear (8) coaxially arranged on the first threaded rods (7), a moving block (9) threadedly connected to the first threaded rods (7), a connecting plate (10) arranged on the moving block (9), a clamping plate (11) arranged on the connecting plate (10), and a first handle (17) arranged on the rotating shaft (5); the first gear (6) and the second gear (8) are meshed and connected, the moving block (9) is slidably arranged inside the mounting base (3), and anti-slip pads are provided on both the mounting base (3) and the clamping plate (11).

2. A steel construction drill jig according to claim 1, characterized in that The clamping device also includes a fixed plate (12) disposed on the mounting base (3), a screw (13) threadedly connected to the fixed plate (12), two guide rods (14) symmetrically distributed and slidably connected to the fixed plate (12), a pressure plate (15) disposed on the guide rods (14), and a rotating connector (16) disposed on the pressure plate (15); the bottom end of the screw (13) is inserted into the inner hole of the rotating connector (16) and rotated.

3. A steel construction drill jig according to claim 2, characterized in that A second grip (18) is provided on the screw (13), and an anti-slip pad is provided on the pressure plate (15).

4. A steel construction drill jig according to claim 1, characterized in that A drive assembly is provided on the base (1). The drive assembly includes a motor (20) provided on the base (1), a second threaded rod (21) rotatably connected inside the base (1) and having two threads with opposite directions, and two guide blocks (19) provided on the movable frame (2). The motor (20) and the second threaded rod (21) are driven together. The two threaded parts are symmetrically distributed and threadedly connected to the movable frames (2) on both sides respectively. The guide blocks (19) are slidably provided inside the base (1).

5. A steel construction drill jig according to claim 4, characterized in that The mobile frame (2) is provided with an auxiliary support assembly, which includes two support frames (25) on the mobile frame (2), a frame (26) on the support frame (25), and multiple rollers (27) linearly distributed and rotatably connected to the frame (26); the rollers (27) are rotatably mounted on the base (1).

6. A steel construction drill jig according to claim 1, characterized in that A workbench (22) is provided on the base (1), and the base plate (4) is slidably connected to the workbench (22).

7. A steel construction drill jig according to claim 6, characterized in that Two auxiliary support plates (23) are provided on the workbench (22), and two limit plates (24) are provided on the auxiliary support plates (23).

8. A steel construction drill jig according to claim 7, characterized in that The limiting plate (24) is provided with through holes, and the worktable (22) is provided with multiple limiting holes arranged in a linear array.

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