Steel structure connecting hole opening device

Abstract

This application relates to a steel structure connection hole drilling device, which includes a drilling machine. A magnetic base is installed at the bottom of the drilling machine, and support components are installed on both sides of the magnetic base. A positioning component is installed at the rear end of the magnetic base. The positioning component includes a square tube, and a pair of mounting parts are fixedly connected to the center of the inner side of the square tube. A bidirectional lead screw is rotatably connected through both sides of the mounting parts. A motor is installed at the rear end of the square tube. A sprocket is fixedly connected to the middle of the outer side of the bidirectional lead screw and the output end of the motor. The outer sides of the two sprockets are meshed with the same chain. A first limiting strip is threaded to both ends of the bidirectional lead screw. A first installation channel is opened at the connection between the first limiting strip and the bidirectional lead screw. An installation groove and a second installation channel are opened at the other end of the first limiting strip. A second limiting strip is slidably connected in the installation groove. This application can fix the position of the hole to be drilled and can quickly adapt to the width of the flange of different specifications of steel, which facilitates the movement of the equipment.

Description

Technical Field

[0001] This application relates to the technical field of steel structure installation, and in particular to a device for opening connection holes in steel structures. Background Technology

[0002] In steel structure construction, the processing of connection holes for H-beams, I-beams and other profiles usually relies on manual positioning and hand-held drilling equipment, which has problems such as low positioning accuracy, poor efficiency and high labor intensity. Traditional methods require repeated measurement and marking of hole positions, which can easily lead to hole position displacement due to accumulated errors. Existing fixing devices have complex structures and poor adaptability, making it difficult to quickly adapt to the flange width of different specifications of steel profiles, and are inconvenient to move and adjust.

[0003] Therefore, those skilled in the art have provided a steel structure connection hole opening device to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides a steel structure connection hole opening device.

[0005] The steel structure connection hole opening device provided in this application adopts the following technical solution:

[0006] A steel structure connection hole opening device includes a drilling machine. A magnetic base is installed at the bottom of the drilling machine. Support components are installed on both sides of the magnetic base. A positioning component is installed at the rear end of the magnetic base. The positioning component includes a square tube. A pair of mounting parts are fixedly connected to the center of the inner side of the square tube. A bidirectional lead screw is rotatably connected through both sides of the mounting parts. A motor is installed at the rear end of the square tube. A sprocket is fixedly connected to the middle of the outer side of the bidirectional lead screw and the output end of the motor. The outer sides of the two sprockets are meshed with the same chain. A first limiting strip is threaded to both ends of the bidirectional lead screw. A first installation channel is opened at the connection between the first limiting strip and the bidirectional lead screw. An installation groove and a second installation channel are opened at the other end of the first limiting strip. A second limiting strip is slidably connected in the installation groove. A threaded rod is rotatably connected to the middle of the second limiting strip. A knob is fixedly connected to one end of the outer side of the threaded rod. The threaded rod is threadedly connected to the first limiting strip through the second installation channel.

[0007] Preferably, the support component includes a mounting strip, the rear end of which is fixedly connected to a square tube, and mounting grooves are respectively provided at the bottom end of the mounting strip and near the front and rear ends. A ball bearing is provided at the bottom end of the mounting groove, and a spring is provided at the top of the mounting groove.

[0008] Preferably, a U-shaped shell is fixed to the end of the second limiting strip, and two rollers are rotatably connected to the inner side of the U-shaped shell.

[0009] Preferably, guide rails are fixedly connected to the rear end of the inner side of the square tube near the upper and lower ends, and sliders are slidably connected to the outer side of the guide rails. Two sliders located on the same side are fixedly connected to the upper and lower ends of the first limiting strip.

[0010] Preferably, a partition is installed between the spring and the ball, and a short rod is provided at the bottom end of the partition.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. Start the motor. The sprocket and chain work together to drive the bidirectional lead screw to rotate, causing the first limit bars on both sides to move towards each other along the square tube until they are close to the inner side of the H-shaped steel wing plate, thus achieving lateral positioning of the device. It can quickly adapt to H-shaped steel wing plates of different widths, reducing manual adjustment time. The knob drives the second limit bar to move, and the roller reduces friction, thus achieving drilling position adjustment and avoiding repeated disassembly and measurement. The combination design of ball bearings and springs makes the device light and flexible in the moving state, and automatically switches to magnetic fixation mode in the working state to prevent drilling deviation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 This is a bottom view of this application;

[0015] Figure 3 This is a schematic diagram of the positioning component of this application;

[0016] Figure 4 This is a partial structural schematic diagram of the positioning component of this application;

[0017] Figure 5 This is a cross-sectional view of the supporting components of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Magnetic base; 2. Drilling machine; 3. Square tube; 4. Mounting component; 5. Two-way lead screw; 6. Motor; 7. Sprocket; 8. Chain; 9. First limiting bar; 10. First mounting channel; 11. Second limiting bar; 12. Threaded rod; 13. Knob; 14. Mounting groove; 15. Second mounting channel; 16. Slider; 17. Guide rail; 18. U-shaped shell; 19. Roller; 20. Mounting strip; 21. Ball bearing; 22. Partition plate; 23. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] like Figure 1-4 As shown, this application discloses a steel structure connection hole opening device, including a drilling machine 2. A magnetic base 1 is installed at the bottom of the drilling machine 2. Support components are installed on both sides of the magnetic base 1. A positioning component is installed at the rear end of the magnetic base 1. The positioning component includes a square tube 3. A pair of mounting parts 4 are installed in the center of the inner side of the square tube 3. Bidirectional lead screws 5 are installed through both sides of the mounting parts 4. A motor 6 is installed at the rear end of the square tube 3. Sprockets 7 are installed at the middle of the outer side of the bidirectional lead screws 5 and at the output end of the motor 6. The two sprockets 7... The same chain 8 is installed on the outside. The two ends of the bidirectional screw 5 are respectively installed with first limiting strips 9. The connection between the first limiting strip 9 and the bidirectional screw 5 is provided with a first installation channel 10. The other end of the first limiting strip 9 is provided with an installation groove 14 and a second installation channel 15. The second limiting strip 11 is installed in the installation groove 14. The threaded rod 12 is installed in the middle of the second limiting strip 11. A knob 13 is installed on one end of the outer side of the threaded rod 12. The threaded rod 12 is threadedly connected to the first limiting strip 9 through the second installation channel 15.

[0021] Motor 6 drives the sprocket 7 at its output end to rotate, which in turn drives the double-acting screw 5 and the sprocket 7 on the double-acting screw 5 to rotate via chain 8. The double-acting screw 5 drives the first limiting strip 9 to move closer to or further away from the first limiting strip 9. The first limiting strip 9 contacts the flange of the H-beam, which limits the position of the magnetic base 1 and the drilling machine 2. By rotating the knob 13, the threaded rod 12 can be rotated to adjust the position of the second limiting strip 11, thereby further adjusting the position of the magnetic base 1 and the drilling machine 2 according to the position of the hole to be opened.

[0022] like Figure 1 , 2 As shown in Figure 5, the support assembly includes a mounting strip 20. The rear end of the mounting strip 20 is fixedly connected to the square tube 3. Mounting grooves are provided at the bottom end of the mounting strip 20 and at the front and rear ends. A ball bearing 21 is provided at the bottom end of the mounting groove, and a spring 23 is provided at the top of the mounting groove. When the magnetic base 1 is not working, the mounting strip 20, together with the ball bearing 21, facilitates the movement of the magnetic base 1 and the drilling machine 2. When the magnetic base 1 is working, the ball bearing 21 compresses the spring 23 and retracts into the mounting groove.

[0023] like Figure 1-3As shown, a U-shaped shell 18 is fixed to the end of the second limiting strip 11. Two rollers 19 are installed on the inner side of the U-shaped shell 18. By installing the U-shaped shell 18 and rollers 19 at the end of the second limiting strip 11, the friction between the second limiting strip 11 and the H-shaped steel wing plate can be reduced, making it easier for the equipment to move.

[0024] like Figure 3 As shown, guide rails 17 are installed at the rear end of the inner side of the square tube 3 and near the upper and lower ends. Slider 16 is installed on the outer side of the guide rails 17. Two sliders 16 located on the same side are installed at the upper and lower ends of the first limit bar 9. By setting the sliders 16 in conjunction with the guide rails 17, the roller 19 can be guided and supported.

[0025] like Figure 5 As shown, a partition 22 is installed between the spring 23 and the ball 21. A short rod is provided at the bottom end of the partition 22. By setting the partition 22 in conjunction with the short rod at its bottom end, the rotational friction of the ball 21 can be reduced.

[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] The implementation principle of the steel structure connection hole opening device in this application embodiment is as follows:

[0029] In use, place the magnetic base 1 and the drilling machine 2 on the H-beam. The magnetic base 1 is initially fixed to the surface of the web. Start the motor 6, which drives the bidirectional lead screw 5 to rotate through the sprocket 7 and chain 8. This causes the first limiting strips 9 on both sides to move towards each other along the square tube 3 until they are close to the inner side of the H-beam flange, thus achieving lateral positioning of the device. Rotate the knob 13 to drive the threaded rod 12 to rotate, pushing the second limiting strip 11 to slide in the mounting groove 14. The U-shaped shell 18 and roller 19 at the end of the second limiting strip 11 abut against the side of the flange. By adjusting its extension length, the drilling can be finely adjusted. The longitudinal position of the drilling machine 2 relative to the wing plate ensures accurate hole positioning. When moving, the magnetic base 1 is not working, the ball 21 at the bottom of the mounting strip 20 contacts the steel surface, the spring 23 is in the extended state, pushing the ball 21 downward, so that the device can slide easily. When drilling, the magnetic base 1 adheres tightly to the surface of the web plate, the ball 21 is pressed upward and compresses the spring 23 into the mounting groove, the magnetic base 1 stably adheres and avoids displacement, the slider 16 and the guide rail 17 guide the first limit strip 9 to move smoothly, the partition 22 reduces the rotational friction of the ball 21 and improves the smoothness of movement.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for opening connecting holes in a steel structure, comprising a drilling machine (2), wherein a magnetic base (1) is installed at the bottom end of the drilling machine (2), support components are respectively installed on both sides of the magnetic base (1), and a positioning component is installed at the rear end of the magnetic base (1), characterized in that, The positioning assembly includes a square tube (3), with a pair of mounting parts (4) fixedly connected to the center of the inner side of the square tube (3). A double-acting screw (5) is rotatably connected through both sides of the mounting parts (4). A motor (6) is installed at the rear end of the square tube (3). A sprocket (7) is fixedly connected to the middle of the outer side of the double-acting screw (5) and the output end of the motor (6). The outer sides of the two sprockets (7) are meshed with the same chain (8). The two ends of the double-acting screw (5) are respectively threaded with a first limiting strip (9). The first limiting strip (9) 9) A first installation channel (10) is provided at the connection with the bidirectional lead screw (5). An installation groove (14) and a second installation channel (15) are provided at the other end of the first limiting strip (9). A second limiting strip (11) is slidably connected in the installation groove (14). A threaded rod (12) is rotatably connected in the middle of the second limiting strip (11). A knob (13) is fixedly connected to one end of the outer side of the threaded rod (12). The threaded rod (12) is threadedly connected to the first limiting strip (9) through the second installation channel (15).

2. The steel structure connection hole opening device according to claim 1, characterized in that: The support component includes a mounting strip (20), the rear end of which is fixed to a square tube (3). Mounting grooves are provided at the bottom end of the mounting strip (20) and at the front and rear ends respectively. A ball bearing (21) is provided at the bottom end of the mounting groove, and a spring (23) is provided at the top of the mounting groove.

3. The steel structure connection hole opening device according to claim 1, characterized in that: The end of the second limiting bar (11) is fixed with a U-shaped shell (18), and two rollers (19) are rotatably connected to the inner side of the U-shaped shell (18).

4. The steel structure connection hole opening device according to claim 1, characterized in that: The inner rear end of the square tube (3) and the upper and lower ends are respectively fixedly connected to guide rails (17). The outer side of the guide rails (17) is slidably connected to sliders (16). The two sliders (16) on the same side are respectively fixedly connected to the upper and lower ends of the first limiting strip (9).

5. A steel structure connection hole opening device according to claim 2, characterized in that: A partition (22) is installed between the spring (23) and the ball (21), and a short rod is provided at the bottom end of the partition (22).

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