Automatic centering steel pipe drilling mechanism

Abstract

The utility model discloses an automatic centering steel pipe drilling mechanism, which belongs to the technical field of steel pipe drilling, and comprises a workbench, the rear side of the top of the workbench is fixedly connected with a centering mechanism, and the bottom of the centering mechanism is fixedly connected with a tapping mechanism. The centering mechanism measures the position of the steel pipe in real time through a laser displacement sensor and feeds data back to the microcontroller, the microcontroller analyzes and processes according to a preset algorithm and sends an instruction to the automatic three-jaw chuck, automatic centering and clamping of the steel pipe are achieved, it is ensured that the steel pipe is located at the center position during drilling, and the drilling precision is greatly improved. According to the hole opening mechanism, a first motor drives a lead screw to rotate, the lead screw is in threaded fit with a sliding block, rotary motion is converted into linear motion of the sliding block, the feeding amount of a drill bit is controlled, and the drilling depth is controlled; and the feeding speed of the drill bit can be flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe drilling technology, and in particular to an automatic centering steel pipe drilling mechanism. Background Technology

[0002] In building construction, especially in steel structure buildings, steel pipes are widely used to build scaffolding and construct the main structure. To achieve a stable connection between steel pipes, holes need to be drilled in the steel pipes to install bolts, pins and other connectors. As the scale of buildings expands and the complexity of building structures increases, the requirements for the speed and quality of drilling holes in steel pipes are also increasing.

[0003] Existing drilling machines for drilling steel pipes are usually operated manually by hand, resulting in low production efficiency and high labor intensity. In addition, the uneven stress on the supporting parts of the steel pipe during drilling can easily cause deformation of the steel pipe and concave holes. Furthermore, if it is necessary to drill a row of holes on the steel pipe, it is necessary to first mark the positioning lines on the steel pipe, which is inconvenient to operate. The steel pipe may slip during drilling, resulting in poor drilling positioning.

[0004] An existing patent (publication number: CN209006722U) discloses a steel pipe drilling machine, comprising a drilling mechanism and a drill bit connected to the drilling mechanism. Sleeves are fixedly installed on both sides of the drilling mechanism, and the sleeves are movably fitted onto the top of guide shafts. The tops of the two guide shafts extending outside the sleeves are fixedly connected to both sides of the same lifting mechanism. A base is fixedly connected to the bottom of the guide shafts. The bottom of the sleeves is connected to the top of the base via a compression spring fitted on the guide shafts. A moving mechanism located directly below the drill bit is fixedly connected to the top of the base. This steel pipe drilling machine, through the combined use of a load and a clamping block, allows the steel pipe to automatically center without deviation. The supporting portion is relatively long, and the steel pipe is less prone to deformation, reducing hole displacement and depression. Furthermore, it can drill steel pipes of various diameters and is simple and convenient to operate.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, existing steel pipe drilling mechanisms lack an automatic centering structure for the steel pipe, resulting in the steel pipe being roughly positioned by manual experience or simple positioning devices during clamping. This makes it impossible to calibrate the center of the steel pipe with the drill bit, thereby reducing the accuracy of the hole position.

[0006] Therefore, an automatic centering steel pipe drilling mechanism is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic centering steel pipe drilling mechanism, which can solve the problem that existing steel pipe drilling mechanisms lack an automatic centering structure for the steel pipe, resulting in the steel pipe being roughly positioned by manual experience or simple positioning devices during the clamping process, making it impossible to calibrate the center of the steel pipe and the drill bit, thereby reducing the accuracy of the hole position.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic centering steel pipe drilling mechanism, including a worktable, a centering mechanism fixedly connected to the rear side of the top of the worktable, and an opening mechanism fixedly connected to the bottom of the centering mechanism;

[0009] The centering mechanism includes a limiting plate, a placement slot, a microcontroller, a laser displacement sensor, two automatic three-jaw chucks, and a limiting tube. The limiting plate is fixedly connected to the rear side of the top of the worktable, the placement slot is opened on the top of the limiting plate, the microcontroller is fixedly connected to the right side of the limiting plate, the laser displacement sensor is fixedly connected to the top of the worktable, the automatic three-jaw chucks are fixedly connected to both sides of the limiting tube, and the limiting tube is fixedly connected to the top of the hole-opening mechanism.

[0010] Preferably, the hole-opening mechanism includes a support frame, a slide, a lead screw, a first motor, a slider, a second motor, a drill bit, and a drill bit holder, with the rear side of the top of the support frame fixedly connected to the bottom of the limiting tube.

[0011] Preferably, the bottom of the support frame is fixedly connected to the front side of the top of the workbench, the slide groove is opened on the inner side of the support frame, the lead screw is rotatably connected to the inner side of the slide groove, the first motor is fixedly connected to the front side of the support frame, and the output end of the first motor passes through the support frame and is fixedly connected to the front side of the lead screw.

[0012] Preferably, the slider is threaded to the surface of the lead screw, the second motor is fixedly connected to the front side of the slider, the drill bit is rotatably connected to the inner side of the slider, the output end of the second motor passes through the slider and is fixedly connected to the front side of the drill bit, the drill bit holder is fixedly connected to the rear side of the inner side of the slide groove, and the cutting end of the drill bit passes through the slider and is slidably connected to the inner side of the drill bit holder.

[0013] Preferably, the laser displacement sensor is fixedly connected to two sides by fixing blocks, and the surface of the fixing blocks is coated with anti-corrosion coating.

[0014] Preferably, a support column is fixedly connected to the bottom of the workbench, and the bottom of the support column is engraved with anti-slip texture.

[0015] Preferably, a protective pad is fitted on the top of the workbench, and the surface of the protective pad is coated with an anti-stick coating.

[0016] Preferably, a buffer pad is fitted inside the placement groove, and the surface of the buffer pad is engraved with anti-slip texture.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The centering mechanism of this application measures the position of the steel pipe in real time through a laser displacement sensor and feeds the data back to the microcontroller. The microcontroller analyzes and processes the data according to a preset algorithm and sends a command to the automatic three-jaw chuck to realize the automatic centering and clamping of the steel pipe. This ensures that the steel pipe is in the center position during drilling, greatly improves drilling accuracy, and avoids problems such as inaccurate hole position and uneven hole diameter caused by deviation of the steel pipe position.

[0019] 2. The drilling mechanism of this application drives the lead screw to rotate through the first motor. The lead screw and the slider are threaded together, which converts the rotational motion into the linear motion of the slider, controls the feed of the drill bit, and realizes the control of the drilling depth. By adjusting the speed of the first motor, the feed speed of the drill bit can be flexibly adjusted to meet the drilling process requirements of steel pipes of different materials and diameters, and improve the drilling quality and efficiency. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the automatic centering steel pipe drilling mechanism of this utility model;

[0021] Figure 2 This is an overall structural diagram of the centering mechanism of this utility model;

[0022] Figure 3 This is an overall structural diagram of the hole-opening mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the protective pad of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the buffer pad of this utility model.

[0025] In the diagram, 1. Workbench; 2. Centering mechanism; 21. Limiting plate; 22. Placement slot; 23. Microcontroller; 24. Laser displacement sensor; 25. Automatic three-jaw chuck; 26. Limiting tube; 3. Hole-opening mechanism; 31. Support frame; 32. Slide groove; 33. Lead screw; 34. First motor; 35. Slider; 36. Second motor; 37. Drill bit; 38. Drill bit holder; 4. Fixing block; 5. Support column; 6. Protective pad; 7. Buffer pad. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] An automatic centering steel pipe drilling mechanism includes a workbench 1, a centering mechanism 2 fixedly connected to the rear side of the top of the workbench 1, and a hole-opening mechanism 3 fixedly connected to the bottom of the centering mechanism 2.

[0029] The centering mechanism 2 includes a limiting plate 21, a placement slot 22, a microcontroller 23, a laser displacement sensor 24, two automatic three-jaw chucks 25, and a limiting tube 26. The limiting plate 21 is fixedly connected to the rear side of the top of the worktable 1. The placement slot 22 is opened on the top of the limiting plate 21. The microcontroller 23 is fixedly connected to the right side of the limiting plate 21. The laser displacement sensor 24 is fixedly connected to the top of the worktable 1. The automatic three-jaw chucks 25 are fixedly connected to both sides of the limiting tube 26. The limiting tube 26 is fixedly connected to the top of the opening mechanism 3.

[0030] In this embodiment: the workbench 1 supports and limits the centering mechanism 2 and the opening mechanism 3; the limiting plate 21 supports and limits the placement slot 22 and the microcontroller 23; the microcontroller 23 receives the signal from the laser displacement sensor 24, analyzes and processes it according to the preset program and algorithm, and then sends a control command to the automatic three-jaw chuck 25 to realize the automatic centering control of the steel pipe; the laser displacement sensor 24 can measure the distance deviation between the steel pipe and the set reference position in real time, convert the distance information into an electrical signal and feed it back to the microcontroller 23. The microcontroller 23 provides a basis for judging the position of the steel pipe. The automatic three-jaw chuck 25 can automatically and synchronously clamp or release the steel pipe. Under the control of the microcontroller 23, the clamping force and position of the steel pipe are automatically adjusted according to the position deviation of the steel pipe detected by the laser displacement sensor 24, so as to realize the automatic centering and clamping of the steel pipe. The limit tube 26 provides installation support for the automatic three-jaw chuck 25 to ensure its stability, and can also limit the position of the automatic three-jaw chuck 25 to ensure the position accuracy of the automatic three-jaw chuck 25 during operation, thereby ensuring the centering accuracy of the steel pipe.

[0031] Specifically, such as Figure 3As shown, the hole-opening mechanism 3 includes a support frame 31, a slide 32, a lead screw 33, a first motor 34, a slider 35, a second motor 36, a drill bit 37, and a drill bit holder 38. The rear side of the top of the support frame 31 is fixedly connected to the bottom of the limiting tube 26.

[0032] Specifically, such as Figure 3 As shown, the bottom of the support frame 31 is fixedly connected to the front side of the top of the workbench 1, the slide groove 32 is opened on the inner side of the support frame 31, the lead screw 33 is rotatably connected to the inner side of the slide groove 32, the first motor 34 is fixedly connected to the front side of the support frame 31, and the output end of the first motor 34 passes through the support frame 31 and is fixedly connected to the front side of the lead screw 33.

[0033] Specifically, such as Figure 3 As shown, the slider 35 is threadedly connected to the surface of the lead screw 33, the second motor 36 is fixedly connected to the front side of the slider 35, the drill bit 37 is rotatably connected to the inner side of the slider 35, the output end of the second motor 36 passes through the slider 35 and is fixedly connected to the front side of the drill bit 37, the drill bit holder 38 is fixedly connected to the rear side of the inner side of the slide groove 32, and the cutting end of the drill bit 37 passes through the slider 35 and is slidably connected to the inner side of the drill bit holder 38.

[0034] In this embodiment: the support frame 31 supports and limits the limiting tube 26, the slide groove 32, the lead screw 33, the first motor 34, and the drill bit holder 38. The slide groove 32 provides guidance for the movement of the slider 35, restricting the slider 35 to move only in a specific linear direction, ensuring the accurate feed direction of the drill bit 37 during drilling. The lead screw 33 is threadedly engaged with the slider 35, converting rotational motion into linear motion of the slider 35, thereby controlling the feed amount of the drill bit 37 and achieving control of the drilling depth. The first motor 34 provides power for the rotation of the lead screw 33, and the slider 35 is driven by the lead screw 33. The slider 35 moves along the lower edge of the slide groove 32. Simultaneously, the slider 35 serves as the mounting carrier for the second motor 36 and the drill bit 37, enabling the drill bit 37 to move linearly in the direction of the slide groove 32, thus realizing the feed and retraction operations of the drill bit 37. The second motor 36 provides power for the rotation of the drill bit 37. Driven by the second motor 36, the drill bit 37 rotates at high speed to drill holes in the steel pipe. The drill bit holder 38 supports and guides the cutting end of the drill bit 37, restricting the swing of the drill bit 37 during the drilling process, further improving the stability and drilling accuracy of the drill bit 37, while protecting the drill bit 37 and extending its service life.

[0035] Specifically, such as Figure 5 As shown, the laser displacement sensor 24 is fixedly connected to two sides of a fixing block 4, and the surface of the fixing block 4 is coated with an anti-corrosion coating.

[0036] Specifically, such as Figure 5As shown, a support column 5 is fixedly connected to the bottom of the workbench 1, and the bottom of the support column 5 is engraved with anti-slip texture.

[0037] In this embodiment: by setting a fixing block 4, the laser displacement sensor 24 is firmly connected to the worktable 1, ensuring that it maintains a stable position throughout the drilling operation and will not be displaced due to vibration or other external forces, thereby ensuring that the laser displacement sensor 24 can continuously and accurately measure the position of the steel pipe. By setting an anti-corrosion coating, the corrosion of the fixing block 4 by corrosive substances present in the surrounding environment can be effectively reduced, extending the service life of the fixing block 4. By setting a support column 5, additional support force is provided to the worktable 1, increasing the stability of the entire drilling mechanism. By setting an anti-slip texture, the friction between the support column 5 and the contact surface can be increased, preventing the entire drilling mechanism from sliding during operation.

[0038] Specifically, such as Figure 4 , Figure 5 As shown, a protective pad 6 is fitted on the top of the workbench 1, and the surface of the protective pad 6 is coated with an anti-stick coating.

[0039] Specifically, such as Figure 5 As shown, a buffer pad 7 is fitted inside the placement groove 22, and the surface of the buffer pad 7 is engraved with anti-slip texture.

[0040] In this embodiment: by setting the protective pad 6, the steel pipe placed on the workbench 1 can be protected. By setting the anti-stick coating, oil stains, impurities and other substances on the surface of the steel pipe are prevented from adhering to the protective pad 6. By setting the buffer pad 7, when the steel pipe is placed in the placement groove 22, the buffer pad 7 can buffer the impact between the steel pipe and the placement groove 22, and protect the surface of the steel pipe from damage. By setting the anti-slip texture, the friction between the steel pipe and the buffer pad 7 is increased, preventing the steel pipe from sliding in the placement groove 22, ensuring that the steel pipe always stays in the predetermined position during centering and drilling, and improving the accuracy and stability of drilling.

[0041] Working Principle: First, the user installs the workbench 1 in the desired working position. Then, the user places the steel pipe to be drilled into the placement slot 22, ensuring that one end to be drilled smoothly passes through the two automatic three-jaw chucks 25. After completing the above preparations, the user powers on and starts the microcontroller 23 and the laser displacement sensor 24. At this time, the laser displacement sensor 24 quickly emits a signal to perform an all-round detection of the steel pipe to be drilled and transmits the detected signal to the microcontroller 23 in real time. After receiving the signal, the microcontroller 23 performs depth analysis on the position of the steel pipe and then controls the two automatic three-jaw chucks 25 to achieve automatic centering of the steel pipe, ensuring that the steel pipe is in the appropriate drilling position. After the steel pipe is centered, the user powers on again and starts the first motor 34 and the second motor 36. The first motor 34 drives the lead screw 33 to rotate. The rotation of lever 33 drives slider 35 to slowly move along lead screw 33 towards the center of the front side of the steel pipe. At the same time, second motor 36 exerts force synchronously, driving drill bit 37 to rotate at high speed. During the movement of slider 35, drill bit 37, with the help of the displacement of slider 35, advances along drill bit holder 38 towards the center of the front side of the steel pipe to start drilling. When the drilling is completed, the user first turns off second motor 36, and then reverses first motor 34. The reversal of first motor 34 causes lead screw 33 to rotate in the opposite direction, thereby driving slider 35 to move forward quickly, so that drill bit 37 can be smoothly separated from the drilled steel pipe. After the separation operation is completed, the user issues a command through microcontroller 23 to control automatic three-jaw chuck 25 to release the clamp on the steel pipe. Finally, the user can take out the drilled steel pipe and put in a new steel pipe to be drilled to start a new round of drilling.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic centering steel pipe drilling mechanism comprising a table (1), characterized in that: A centering mechanism (2) is fixedly connected to the rear side of the top of the workbench (1), and an opening mechanism (3) is fixedly connected to the bottom of the centering mechanism (2). The centering mechanism (2) includes a limiting plate (21), a placement slot (22), a microcontroller (23), a laser displacement sensor (24), two automatic three-jaw chucks (25), and a limiting tube (26). The limiting plate (21) is fixedly connected to the rear side of the top of the workbench (1). The placement slot (22) is opened on the top of the limiting plate (21). The microcontroller (23) is fixedly connected to the right side of the limiting plate (21). The laser displacement sensor (24) is fixedly connected to the top of the workbench (1). The automatic three-jaw chucks (25) are fixedly connected to both sides of the limiting tube (26). The limiting tube (26) is fixedly connected to the top of the opening mechanism (3).

2. An automatic centering steel pipe drilling mechanism according to claim 1, characterized in that: The hole-opening mechanism (3) includes a support frame (31), a slide (32), a lead screw (33), a first motor (34), a slider (35), a second motor (36), a drill bit (37), and a drill bit holder (38). The rear side of the top of the support frame (31) is fixedly connected to the bottom of the limiting tube (26).

3. An automatic centering steel pipe drilling mechanism according to claim 2, characterized in that: The bottom of the support frame (31) is fixedly connected to the front side of the top of the workbench (1). The slide groove (32) is opened on the inner side of the support frame (31). The lead screw (33) is rotatably connected to the inner side of the slide groove (32). The first motor (34) is fixedly connected to the front side of the support frame (31). The output end of the first motor (34) passes through the support frame (31) and is fixedly connected to the front side of the lead screw (33).

4. An automatic centering steel pipe drilling mechanism according to claim 2, characterized in that: The slider (35) is threadedly connected to the surface of the lead screw (33), the second motor (36) is fixedly connected to the front side of the slider (35), the drill bit (37) is rotatably connected to the inner side of the slider (35), the output end of the second motor (36) passes through the slider (35) and is fixedly connected to the front side of the drill bit (37), the drill bit holder (38) is fixedly connected to the rear side of the inner side of the slide groove (32), and the cutting end of the drill bit (37) passes through the slider (35) and is slidably connected to the inner side of the drill bit holder (38).

5. An automatic centering steel pipe drilling mechanism according to claim 1, characterized in that: The laser displacement sensor (24) is fixedly connected to two sides by fixing blocks (4), and the surface of the fixing blocks (4) is coated with anti-corrosion coating.

6. An automatic centering steel pipe drilling mechanism according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a support column (5), and the bottom of the support column (5) is engraved with anti-slip texture.

7. An automatic centering steel pipe drilling mechanism according to claim 1, characterized in that: The top of the workbench (1) is fitted with a protective pad (6), and the surface of the protective pad (6) is coated with an anti-stick coating.

8. An automatic centering steel pipe drilling mechanism according to claim 1, characterized in that: The inner side of the placement groove (22) is fitted with a buffer pad (7), and the surface of the buffer pad (7) is engraved with anti-slip texture.

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