Anti-blocking drill bit

Abstract

The utility model belongs to the technical field of glass drill bits, and particularly relates to an anti-blocking drill bit. Comprising a drill bit body, the drill bit body is provided with a containing cavity with an opening facing a blade part, a rod part of the drill bit body is provided with a water injection channel which is arranged along the rod part and communicated with the containing cavity, and a porous medium is arranged in the containing cavity. According to the drill bit, the containing cavity with the opening facing the blade part is formed in the drill bit body, the water injection channel communicated with the containing cavity is formed in the rod part, meanwhile, the containing cavity is filled with the porous medium, and by means of the filtering performance of the porous medium, glass fragments are effectively prevented from entering the water injection channel, but water in the water injection channel cannot be blocked from flowing out; therefore, the problem of channel blockage is avoided. When the porous medium needs to be replaced, the glass fragments in the containing cavity can be quickly cleaned up only by simply taking out the old porous medium and replacing the old porous medium with a new porous medium, the machine does not need to be shut down for complex cleaning operation, the drilling efficiency and operation convenience are remarkably improved, and meanwhile the drilling quality is guaranteed.

Description

[Technical Field]

[0001] This application belongs to the field of glass drill bit technology, specifically relating to an anti-clogging drill bit. [Background Technology]

[0002] Traditional glass drilling typically uses drill bits with water injection channels. Water is continuously injected to cool the drill bit and remove glass debris generated during drilling. However, during drilling at different angles and orientations, glass debris can easily enter the water injection channels, causing blockages. Once blocked, this negatively impacts drilling efficiency and quality. The common method is to periodically stop the drilling process and manually clean the debris from the water injection channels. However, this method is not only time-consuming and labor-intensive, but also difficult to clean completely because the water injection channels are usually located on the inner wall of the drill bit. [Utility Model Content]

[0003] To address the problem that the water injection channel of the drill bit is easily blocked by glass debris during glass drilling in the prior art, and that it is difficult to clean, this application provides an anti-clogging drill bit.

[0004] This application is achieved through the following technical solution:

[0005] An anti-clogging drill bit includes a drill bit body, the drill bit body having a receiving cavity with an opening facing the cutting edge, the shank of the drill bit body having a water injection channel arranged along the shank and communicating with the receiving cavity, and the receiving cavity containing a porous medium.

[0006] In the anti-clogging drill bit described above, the porous medium fills the bottom area of ​​the accommodating cavity.

[0007] In the anti-clogging drill bit described above, the height of the accommodating cavity is h, and the height of the porous medium is H, wherein H > h.

[0008] As described above, in an anti-clogging drill bit, the porous medium has a through hole extending along its height direction, and the through hole corresponds to the water injection channel.

[0009] In the anti-clogging drill bit described above, the inner wall diameter of the water injection channel is the same as the inner wall diameter of the through hole.

[0010] In the anti-clogging drill bit described above, the diameter of the accommodating cavity is L, where L≥16mm.

[0011] As described above, in an anti-clogging drill bit, the cutting edge of the drill bit body is provided with multiple cutting edges distributed in the circumferential direction, and the height of the cutting edges is D, where Hh < D.

[0012] As described above, in an anti-clogging drill bit, the rod is tapered, and its diameter gradually decreases outward from the area near the receiving cavity.

[0013] In the aforementioned anti-clogging drill bit, the porous medium is a sponge.

[0014] Compared with the prior art, this application has the following advantages:

[0015] This application discloses an anti-clogging drill bit. It features a cavity on the drill bit body with an opening facing the cutting edge, and a water injection channel on the shaft connecting to this cavity. The cavity is filled with a porous medium. The filtration properties of the porous medium effectively prevent glass fragments from entering the water injection channel without obstructing water flow, thus avoiding channel blockage. When the porous medium needs replacement, simply removing the old medium and replacing it with a new one quickly clears the glass fragments from the cavity without requiring machine downtime for complex cleaning operations. This significantly improves drilling efficiency and ease of operation while ensuring drilling quality. [Attached Image Description]

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional perspective view of an embodiment of this application;

[0018] Figure 2 yes Figure 1 Exploded view;

[0019] Figure 3 yes Figure 2 Top view of the drill bit body;

[0020] Figure 4 yes Figure 2 The main view;

[0021] Figure 5 yes Figure 1 The main view.

Detailed Implementation Methods

[0022] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0023] Please see Figures 1 to 5A clog-resistant drill bit includes a drill bit body 1, a receiving cavity 12 with an opening facing the cutting edge 11 on the drill bit body 1, a water injection channel 14 arranged along the rod 13 and communicating with the receiving cavity 12, and a porous medium 2 is provided in the receiving cavity 12.

[0024] This application discloses an anti-clogging drill bit. It features a cavity on the drill bit body with an opening facing the cutting edge, and a water injection channel on the shaft connecting to this cavity. The cavity is filled with a porous medium. The filtration properties of the porous medium effectively prevent glass fragments from entering the water injection channel without obstructing water flow, thus avoiding channel blockage. When the porous medium needs replacement, simply removing the old medium and replacing it with a new one quickly clears the glass fragments from the cavity without requiring machine downtime for complex cleaning operations. This significantly improves drilling efficiency and ease of operation while ensuring drilling quality.

[0025] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the porous medium 2 fills the bottom area of ​​the accommodating cavity 12.

[0026] In this embodiment, by ensuring close contact between the porous medium and the bottom of the receiving cavity, an effective physical barrier is provided to prevent glass fragments from entering the water injection channel 131. The filtering properties of the porous medium allow cooling water to pass smoothly while trapping glass fragments, thus avoiding channel blockage. When the drill bit drills into the glass, cooling water enters the receiving cavity 12 through the water injection channel 131 and reaches the cutting edge 11 after being filtered by the porous medium 121, serving to cool and remove debris. Because the porous medium fills the bottom area of ​​the receiving cavity, glass fragments are captured by the porous medium when entering the receiving cavity and will not enter the water injection channel to cause blockage. The porous medium 2 uses its own microporous structure to filter the coolant, allowing liquid to pass through while blocking larger solid particles such as glass fragments, thereby achieving an anti-clogging effect without affecting the water injection function.

[0027] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the height of the accommodating cavity 12 is h, and the height of the porous medium 2 is H, wherein H > h.

[0028] In this embodiment, the porous medium undergoes a certain degree of compression deformation when filling the cavity, thereby enhancing its tight contact with the inner wall of the cavity and preventing glass fragments from entering the water injection channel through the gap between the medium and the cavity wall. At the same time, the reduced porosity of the compressed porous medium allows it to more effectively intercept fine debris, improving the filtration effect. The compressed porous medium forms a denser filter layer, resulting in greater resistance to water flow, which prolongs the contact time between the water flow and the medium, enhancing the debris capture ability. Furthermore, the elastic recovery force of the compressed medium allows it to remain stable when impacted by water flow, preventing filtration failure due to medium displacement.

[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the porous medium 2 is provided with a through hole 21 extending along its height direction, and the through hole 21 corresponds to the water injection channel 14.

[0030] In this embodiment, the design of the through holes corresponding to the water injection channels can provide a direct water flow channel while ensuring the filtration effect of the porous media. This effectively reduces the resistance of water flow through the porous media, ensuring that cooling water and flushing water can reach the drill bit cutting edge quickly and evenly, thus improving cooling and flushing efficiency. The through holes, as the main water flow channel, can quickly deliver a large amount of cooling water, while the porous media, through its pore structure, performs secondary distribution and filtration of the water flow, intercepting glass debris and preventing it from entering the water injection channel. At the same time, the high specific surface area and adsorption characteristics of the porous media can further enhance the ability to capture debris, ensuring the stability and continuity of the drilling process.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, the inner wall diameter of the water injection channel 14 is the same as the inner wall diameter of the through hole 21.

[0032] In this embodiment, a consistent flow rate and pressure are ensured as the water flows through the injection channel and through-hole, avoiding turbulence or pressure loss caused by changes in channel diameter. This improves the delivery efficiency of cooling and flushing water and ensures that the water reaches the drill bit edge uniformly and stably, achieving efficient cooling and debris flushing. Furthermore, it minimizes energy loss during water flow, maintaining a smooth flow through the injection channel and through-hole. Simultaneously, the porous medium, through its pore structure, performs secondary distribution and filtration of the water flow, intercepting glass debris and preventing it from entering the injection channel, ensuring the stability of the drilling process. A transition slope or rounded chamfer can be added at the connection between the injection channel and through-hole to further reduce turbulence and energy loss, improving water delivery efficiency. Alternatively, a gradually decreasing diameter design for the injection channel and through-hole, such as a tapered structure that gradually narrows from the inlet to the outlet, can be used to increase water pressure and enhance flushing effect. Wear-resistant coatings or smoothing treatments can also be applied to the inner walls of the injection channel and through-hole to reduce frictional resistance during water flow and extend the channel's service life.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the diameter of the accommodating cavity 12 is L, wherein L≥16mm.

[0034] In this embodiment, drilling with a drill bit diameter of less than 16mm produces less debris and is less likely to cause blockage. However, drill bits larger than 16mm produce a large amount of glass debris when drilling glass, requiring the use of a sponge for easy cleaning.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the cutting edge 11 of the drill bit body 1 is provided with a plurality of cutting edges 111 distributed in the circumferential direction, the height of the cutting edge being D, wherein Hh < D.

[0036] In this embodiment, the blade height D is greater than the height difference between the porous medium 2 and the accommodating cavity 12, which ensures that the blade will not be interfered with by the porous medium during the cutting process. At the same time, it brings the coolant closer to the cutting area, further enhancing the cooling effect and the chip removal capability, and avoiding glass chipping or cracking caused by heat accumulation or chip buildup.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the rod portion 13 is tapered, and its diameter gradually decreases outward from the point near the receiving cavity 12.

[0038] In this embodiment, by designing the rod 13 as a cone shape with its diameter gradually decreasing outward from the point near the receiving cavity 12, the overall structural strength of the drill bit and the flow efficiency of the coolant can be significantly improved, while the chip removal performance during the drilling process is optimized. The cone shape allows the rod 13 to have a larger cross-sectional area at the end near the receiving cavity 12, thereby enhancing the bending strength and stability of the drill bit and reducing the risk of drill bit deformation or breakage due to excessive cutting force. The gradually decreasing diameter of the rod reduces the resistance of the coolant when flowing in the water injection channel 14, ensuring that the coolant can flow quickly and evenly to the drilling area, improving the cooling effect and reducing the impact of heat accumulation on the glass material.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the porous medium 2 is a sponge.

[0040] In this embodiment, the sponge, as a flexible porous material, can filter the coolant through its microporous structure. It allows the liquid to pass smoothly while preventing glass debris from entering the water injection channel 14, thus avoiding a decrease in cooling efficiency due to debris blockage. Simultaneously, the sponge's elastic properties allow it to automatically adjust its pore size under pressure, further enhancing the filtration effect and debris-holding capacity. It also facilitates compression cleaning or replacement during maintenance, significantly reducing operational difficulty and maintenance costs. Performance can be optimized by selecting sponges of different densities or materials; for example, using high-density sponges can improve filtration accuracy, making it suitable for precision machining scenarios with high cleanliness requirements.

[0041] The working principle of this embodiment is as follows:

[0042] This application discloses an anti-clogging drill bit. It features a cavity on the drill bit body with an opening facing the cutting edge, and a water injection channel on the shaft connecting to this cavity. The cavity is filled with a porous medium. The filtration properties of the porous medium effectively prevent glass fragments from entering the water injection channel without obstructing water flow, thus avoiding channel blockage. When the porous medium needs replacement, simply removing the old medium and replacing it with a new one quickly clears the glass fragments from the cavity without requiring machine downtime for complex cleaning operations. This significantly improves drilling efficiency and ease of operation while ensuring drilling quality.

[0043] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A clog-resistant drill bit, characterized in that, The drill bit body (1) is provided with a cavity (12) with an opening facing the cutting edge (11). The rod (13) of the drill bit body (1) is provided with a water injection channel (14) that is arranged along the rod (13) and communicates with the cavity (12). The cavity (12) is provided with a porous medium (2).

2. The anti-clogging drill bit according to claim 1, characterized in that, The porous medium (2) fills the bottom area of ​​the accommodating cavity (12).

3. The anti-clogging drill bit according to claim 1, characterized in that, The height of the accommodating cavity (12) is h, and the height of the porous medium (2) is H, wherein H > h.

4. The anti-clogging drill bit according to claim 1, characterized in that, The porous medium (2) is provided with a through hole (21) extending along its height direction, and the through hole (21) corresponds to the water injection channel (14).

5. The anti-clogging drill bit according to claim 4, characterized in that, The inner wall diameter of the water injection channel (14) is the same as the inner wall diameter of the through hole (21).

6. The anti-clogging drill bit according to claim 1, characterized in that, The diameter of the accommodating cavity (12) is L, where L≥16mm.

7. The anti-clogging drill bit according to claim 3, characterized in that, The cutting edge (11) of the drill bit body (1) is provided with a plurality of cutting edges (111) distributed in the circumferential direction, and the height of the cutting edge is D, wherein Hh < D.

8. The anti-clogging drill bit according to claim 1, characterized in that, The rod (13) is tapered, and its diameter gradually decreases from the point near the accommodating cavity (12) outwards.

9. The anti-clogging drill bit according to claim 1, characterized in that, The porous medium (2) is a sponge.

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