Vertical drilling machine

Abstract

The utility model discloses a vertical drilling machine which comprises an installation frame, a drilling machine body arranged on the installation frame in an up-down sliding mode, a feeding mechanism driving the drilling machine body to slide up and down, a clamping mechanism clamping a steel rail during drilling and a positioning mechanism. The clamping mechanism is arranged on the mounting frame in a vertical sliding mode, the positioning mechanism is provided with a positioning face abutting against the end face, to be drilled, of the steel rail during drilling, a positioning hole penetrating through the positioning mechanism is formed in the positioning mechanism, the position of the positioning hole corresponds to that of the drill bit, the central axes of the positioning hole and the drill bit are collinear, and the diameter of the positioning hole is larger than the diameter of the drilled hole. The drilling machine is high in positioning speed, high in efficiency and high in precision during drilling. And the drilling machine can be fixed to the steel rail through cooperation of the positioning mechanism and the clamping mechanism, so that the drilling machine is fixed stably, the shaking phenomenon is not likely to occur in the drilling process, the drilling position is not likely to deviate in the drilling process, and the drilling position precision can be further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of railway maintenance equipment technology, specifically to a vertical drilling machine. Background Technology

[0002] Rail drilling machines are essential small tools for railway maintenance and repair, playing a crucial role in rail laying. In existing technology, drilling machines are typically fixed to the rail using a clamping mechanism. The drill bit rotates, and the machine body is driven by a feed mechanism to perform the drilling operation. This method is prone to drill bit misalignment, resulting in wasted rail material. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vertical drilling machine with small drilling deviation and high precision.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A vertical drilling machine, comprising:

[0006] Mounting rack;

[0007] The drilling machine body is slidably mounted on the mounting frame, and the drilling machine body includes a drill bit that can rotate about its own central axis;

[0008] A feeding mechanism, mounted on the mounting frame, is used to drive the drilling machine body to slide up and down relative to the mounting frame;

[0009] A clamping mechanism for clamping the rail during drilling, the clamping mechanism being slidably mounted on the mounting frame;

[0010] A positioning mechanism is provided at the bottom of the mounting frame. The positioning mechanism has a positioning surface for abutting the end face of the rail to be drilled during drilling. The positioning mechanism is provided with a positioning hole that penetrates the positioning mechanism. The position of the positioning hole corresponds to the position of the drill bit, and the central axis of the positioning hole is collinear with the central axis of the drill bit. The diameter of the positioning hole is larger than the drilling diameter.

[0011] In some embodiments, the positioning mechanism includes a positioning plate and positioning seats respectively disposed at both ends of the positioning plate. The positioning plate extends along the length direction of the rail. The lower end surfaces of the positioning plate and the positioning seats on both sides form the positioning surface. The positioning hole is disposed in the middle of the positioning plate and penetrates the upper and lower end surfaces of the positioning plate.

[0012] In some embodiments, the clamping mechanism includes a clamp plate that is slidably disposed on the mounting frame, the clamp plate having a downward-facing slot that is adapted to the upper part of the rail.

[0013] In some embodiments, the clamping plates are slidably disposed on opposite sides of the mounting bracket, and the clamping mechanism further includes a first handle whose two ends are respectively fixedly connected to the clamping plates on both sides.

[0014] In some embodiments, the feeding mechanism includes a rack that can slide up and down on the mounting frame, a gear that can be rotatably mounted on the mounting frame and meshes with the rack, and a crank that is fixedly connected to the gear to drive the gear to rotate, wherein the drilling machine body is fixedly mounted on the rack.

[0015] In some embodiments, the mounting bracket includes a slide rail extending in a vertical direction, the slide rails being respectively disposed on opposite sides, the drilling machine body and the clamping mechanism being slidably disposed on the slide rail along the length extension direction of the slide rail, and the positioning mechanism being fixedly disposed at the bottom of the slide rail.

[0016] In some embodiments, the drilling machine body includes a power mechanism, a gearbox, and a drill bit. The gearbox has an output shaft, the power mechanism is disposed on the gearbox to drive the output shaft to rotate, and the drill bit is disposed on the output shaft.

[0017] In some embodiments, the power mechanism employs a gasoline engine.

[0018] In some embodiments, the drill bit is mounted on the output shaft via an extension rod.

[0019] In some embodiments, the drill bit is detachably mounted on the extension rod via a self-locking chuck.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The vertical drilling machine of this utility model, by setting a positioning mechanism, ensures that during drilling, the positioning surface of the positioning mechanism abuts against the end face of the hole to be drilled on the steel rail, so that the central axis of the positioning hole is located at the position to be drilled. This guarantees that the drill bit is aligned with the drilling position, resulting in fast drilling positioning speed, high efficiency, and high accuracy. Furthermore, during drilling, the drilling machine can be fixed to the steel rail by the positioning mechanism in conjunction with the clamping mechanism, making the drilling machine stable and preventing shaking during drilling. This further ensures the drilling position accuracy. In addition, the drilling machine has a simple overall structure, is lightweight, and easy to transport. Attached Figure Description

[0021] Appendix Figure 1This is a three-dimensional schematic diagram of the vertical drilling machine in this embodiment;

[0022] Appendix Figure 2 This is a three-dimensional schematic diagram of the vertical drilling machine body and the rack after being fixedly connected in this embodiment;

[0023] Appendix Figure 3 This is a three-dimensional schematic diagram of the vertical drilling machine in this embodiment after removing the drilling machine body and the feed mechanism;

[0024] Appendix Figure 4 This is a three-dimensional schematic diagram of the clamping mechanism in the vertical drilling machine of this embodiment after removing part of its structure.

[0025] The components include: 1. Mounting bracket; 11. Slide rail; 2. Drilling machine body; 21. Power mechanism; 22. Gearbox; 23. Self-locking chuck; 24. Extension rod; 251. Upper fixing plate; 252. Lower fixing plate; 253. Connecting plate; 26. Ball bushing; 3. Feeding mechanism; 31. Rack; 32. Gear; 33. Handle; 4. Clamping mechanism; 41. Clamping plate; 411. Slot; 42. Sliding seat; 421. Threaded hole; 43. First handle; 5. Positioning mechanism; 51. Positioning surface; 52. Positioning plate; 521. Positioning hole; 53. Positioning seat; 6. Second handle. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figure 1 As shown, the vertical drilling machine of this utility model includes a mounting frame 1, a drilling machine body 2, a feeding mechanism 3, a clamping mechanism 4, and a positioning mechanism 5.

[0029] Mounting bracket 1 has slide rails 11 extending in the vertical direction, and slide rails 11 are respectively arranged on opposite sides of the drilling machine.

[0030] like Figure 1 and Figure 2 As shown, the drilling machine body 2 includes a power mechanism 21, a gearbox 22, and a drill bit. The gearbox 22 has an output shaft, and the power mechanism 21 is mounted on the gearbox 22 to drive the output shaft of the gearbox 22 to rotate. The drill bit is mounted on the output shaft, thereby driving the drill bit to rotate synchronously around its central axis when the output shaft rotates.

[0031] The power mechanism 21 uses a gasoline engine, which avoids the problems of existing electric drive mechanisms requiring a fixed power supply and being limited in operation in areas without electricity, such as the field or tunnels. In addition, when drilling high-hardness steel rails, electric drive mechanisms are prone to jamming or accelerated drill bit wear due to insufficient power, have poor load adaptability, and overheat the motor during continuous operation, requiring frequent shutdowns for cooling, which affects efficiency.

[0032] The drill bit can be directly connected to the output shaft of the gearbox 22. Alternatively, it can be mounted on the output shaft via an extension rod 24. The extension rod 24 extends the length of the drill bit, allowing it to reach deeper positions and thus expanding the drilling range.

[0033] The drill bit can be detachably mounted on the extension rod 24 via the self-locking chuck 23, allowing for easy replacement of drill bits of different sizes to meet operational needs. The drill bit replacement method via the self-locking chuck 23 is simple and quick. The self-locking connector 23 can adopt a structure found in existing technologies.

[0034] The drilling machine body 2 can be slidably mounted on the mounting frame 1 to enable the feed of the drill bit during drilling.

[0035] Specifically, the drilling machine body 21 also includes a gearbox fixing plate, the gearbox 22 is fixedly mounted on the gearbox fixing plate, and the two ends of the gearbox fixing plate are respectively slidably mounted on the slide rail 11 on the corresponding side.

[0036] like Figure 1 and Figure 2 As shown, the gearbox mounting plate includes an upper mounting plate 251 located above the gearbox 22, a lower mounting plate 252 located below the gearbox 22, and a connecting plate 253 connecting the upper mounting plate 251 and the lower mounting plate 252. The two ends of the upper mounting plate 251 and the lower mounting plate 252 are slidably mounted on the corresponding slide rails 11 on their respective sides.

[0037] Both ends of the upper fixed plate 251 and the lower fixed plate 252 are respectively fixed with ball bushings 26. The ball bushings 26 are respectively sleeved on the slide rail 11 on the corresponding side, and the ball bushings 26 can slide along the extension direction of the slide rail 11. When the ball bushings 26 slide relative to the slide rail 11, there is rolling contact between the balls of the slide rail 11 and the ball bushings 26. This can reduce the frictional resistance between the two, making the drill bit move smoothly during drilling operations. At the same time, it can also reduce the wear between the slide rail 11 and the ball bushings 26, increasing the service life. Through the sliding cooperation between the ball bushings 26 and the slide rail 11, it can be ensured that the drill bit can perform vertical drilling operations.

[0038] The feed mechanism 3 is mounted on the mounting frame 1 and is used to drive the drilling machine body 2 to slide up and down relative to the mounting frame 1.

[0039] Specifically, such as Figure 1 As shown, the feed mechanism includes a rack 31, a gear 32, and a crank 33. The rack 31 is slidably mounted on the mounting frame 1, and the gear 32 is rotatably mounted on the mounting frame 1. The rack 31 meshes with the gear 32, thereby driving the rack 31 to slide up and down relative to the mounting frame 1 when the gear 32 rotates. The crank 33 is fixedly connected to the gear 32 and is used for manual operation. When the crank 33 is operated manually, it drives the gear 32 to rotate relative to the mounting frame 1. The drilling machine body 2 is fixedly mounted on the rack 31. When the rack 31 slides up and down relative to the mounting frame 1, it drives the drilling machine body 2 to slide up and down synchronously, thereby realizing the feed of the drill bit.

[0040] In this embodiment, the rack and pinion 31 are fixedly connected to the connecting plate 253 in the gearbox fixing plate.

[0041] The clamping mechanism 4 is used to clamp the rail during drilling, thereby fixing the drilling machine on the rail to reduce the shaking of the drilling machine during drilling and improve drilling accuracy. The clamping mechanism 4 can be slidably mounted on the mounting frame 1 to clamp or detach from the rail.

[0042] Specifically, such as Figure 3 and Figure 4 As shown, the clamping mechanism 4 includes a clamping plate 41 that can slide up and down on the mounting frame 1. The clamping plate 41 has a downward-facing slot 411 that matches the upper part of the rail. When the rail is clamped by the clamping mechanism 4, the clamping plate 41 slides downward relative to the mounting frame 1 until the slot 411 is engaged with the upper part of the rail, thus locking the position of the clamping plate 41. Conversely, when it is necessary to remove the drilling machine from the rail, the clamping plate 41 is released, allowing it to slide upward relative to the mounting frame 1, thus disengaging the rail from the slot 411. This method enables quick clamping and disassembly of the drilling machine, improving the efficiency of positioning and clamping, and has the advantages of saving time and effort.

[0043] The clamping plates 41 are respectively set on opposite sides of the mounting frame 1, which makes the drilling machine more stable on the rail.

[0044] Each side of the clamping plate 41 has a sliding seat 42 fixedly installed at one end. The sliding seat 42 is sleeved on the slide rail 11 and can slide up and down along the slide rail 11.

[0045] The clamping mechanism 4 also includes a first handle 43, the two ends of which are fixedly connected to the other ends of the clamping plates 41 on both sides. By operating the first handle 43, the clamping plates 41 on both sides can slide synchronously upward or downward relative to the mounting frame 1.

[0046] The clamping mechanism 4 also includes a locking element. When the clamping plate 41 slides relative to the mounting bracket 1 and is engaged in the slot 411 on the upper part of the rail, the locking element locks the position of the clamping plate 41. In this embodiment, the locking element is a bolt, and the sliding seat 42 is provided with a threaded hole 421. The bolt is adjustablely positioned in the threaded hole 421. When it is necessary to lock the position of the clamping plate 41, the bolt is tightened so that the bolt abuts against the slide rail 11. When it is necessary to adjust the position of the clamping plate 41, the bolt is loosened so that the bolt disengages from the slide rail 11.

[0047] like Figure 1 and Figure 3 As shown, the positioning mechanism 5 is located at the bottom of the mounting frame 1. The positioning mechanism 5 has a positioning surface 51, which abuts against the end face of the rail to be drilled during drilling. This allows the positioning mechanism 5, together with the clamping mechanism 4, to fix the drilling machine on the rail. Compared to fixing the drilling machine solely with the clamping mechanism 4, this embodiment ensures that the drilling machine is stably fixed on the rail, preventing shaking during drilling and minimizing deviation in the drilling position, thereby further guaranteeing the positional accuracy of the drilling.

[0048] The positioning mechanism 5 is provided with a positioning hole 521 that penetrates the positioning mechanism. The position of the positioning hole 521 corresponds to the position of the drill bit, and the central axis of the positioning hole 521 is collinear with the central axis of the drill bit. The diameter of the positioning hole 521 is larger than the diameter of the drill hole. During drilling, the drill bit passes through the positioning hole 521 and contacts the end face of the rail to be drilled. Because the central axis of the positioning hole 521 is collinear with the central axis of the drill bit, during drilling, the positioning surface 51 of the positioning mechanism abuts against the end face of the rail to be drilled, ensuring that the central axis of the positioning hole 521 is located at the position to be drilled. This guarantees that the drill bit is aligned with the drilling position, resulting in fast drilling positioning speed, high efficiency, and high accuracy.

[0049] The positioning mechanism 5 includes a positioning plate 52 and positioning seats 53 respectively disposed at both ends of the positioning plate 52. The positioning plate 52 extends along the length of the rail. The lower end surfaces of the positioning plate 52 and the positioning seats 53 on both sides form the aforementioned positioning surface 51. A positioning hole 521 is disposed in the middle of the positioning plate 52 and penetrates the upper and lower end surfaces of the positioning plate 52. During drilling, the positioning hole 521 is located directly below the drill bit. The drill bit moves downward and feeds, passing through the positioning hole 521 to perform drilling operations.

[0050] In this implementation, two positioning seats 53 are respectively set at the bottom of the slide rail 11 on the corresponding side.

[0051] The drilling machine also includes a second handle 6, which is fixedly mounted on the upper part of the mounting frame 1. The second handle 6 is for manual operation when adjusting the position of the drilling machine and when moving the entire drilling machine.

[0052] The operating method of this drilling machine is as follows:

[0053] The drilling machine is moved onto the rail, and its position is adjusted so that the positioning surface 51 of the positioning mechanism abuts against the end face of the rail to be drilled, and the central axis of the positioning hole 521 is located at the position to be drilled. The first handle 42 is operated to slide both clamping plates 41 downwards until the slot 411 is engaged with the upper part of the rail, thus fixing the drilling machine on the rail. The gasoline engine is started, and power is transmitted to the drill bit through the gearbox 22 to make it rotate. The crank handle 33 is turned to drive the gear 32 to rotate, causing the rack 31 to slide up and down relative to the mounting bracket 1, thereby moving the entire drilling machine body 2 up and down to drill.

[0054] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vertical drill, characterized by: include: Mounting rack; The drilling machine body is slidably mounted on the mounting frame, and the drilling machine body includes a drill bit that can rotate about its own central axis; A feeding mechanism, mounted on the mounting frame, is used to drive the drilling machine body to slide up and down relative to the mounting frame; A clamping mechanism for clamping the rail during drilling, the clamping mechanism being slidably mounted on the mounting frame; A positioning mechanism is provided at the bottom of the mounting frame. The positioning mechanism has a positioning surface for abutting the end face of the rail to be drilled during drilling. The positioning mechanism is provided with a positioning hole that penetrates the positioning mechanism. The position of the positioning hole corresponds to the position of the drill bit, and the central axis of the positioning hole is collinear with the central axis of the drill bit. The diameter of the positioning hole is larger than the drilling diameter.

2. The vertical drill according to claim 1, characterized in that: The positioning mechanism includes a positioning plate and positioning seats respectively disposed at both ends of the positioning plate. The positioning plate extends along the length direction of the rail. The lower end surfaces of the positioning plate and the positioning seats on both sides form the positioning surface. The positioning hole is disposed in the middle of the positioning plate and penetrates the upper and lower end surfaces of the positioning plate.

3. The vertical drill according to claim 1, characterized in that: The clamping mechanism includes a clamp plate that can slide up and down on the mounting frame. The clamp plate is provided with a downward-facing slot that is adapted to the upper part of the rail.

4. The vertical drill according to claim 3, characterized in that: The clamping plates are slidably disposed on opposite sides of the mounting frame, and the clamping mechanism further includes a first handle whose two ends are respectively fixedly connected to the clamping plates on both sides.

5. The vertical drill according to claim 1, characterized in that: The feeding mechanism includes a rack that can slide up and down on the mounting frame, a gear that can be rotatably mounted on the mounting frame and meshes with the rack, and a crank that is fixedly connected to the gear to drive the gear to rotate. The drilling machine body is fixedly mounted on the rack.

6. The vertical drill according to claim 1, characterized in that: The mounting bracket includes a slide rail extending in the vertical direction, the slide rails being respectively disposed on opposite sides, the drilling machine body and the clamping mechanism being slidably disposed on the slide rail along the length extension direction of the slide rail, and the positioning mechanism being fixedly disposed at the bottom of the slide rail.

7. The vertical drill according to claim 1, characterized in that: The drilling machine body includes a power mechanism, a gearbox, and a drill bit. The gearbox has an output shaft, the power mechanism is mounted on the gearbox to drive the output shaft to rotate, and the drill bit is mounted on the output shaft.

8. The vertical drill according to claim 7, characterized in that: The power unit uses a gasoline engine.

9. The vertical drill according to claim 7, characterized in that: The drill bit is mounted on the output shaft via an extension rod.

10. The vertical drill according to claim 9, characterized in that: The drill bit is detachably mounted on the extension rod via a self-locking chuck.

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