Hexagonal handle ceramic drill

Abstract

The utility model discloses a hexagonal handle ceramic drill which comprises a drill body, a spiral chip guiding groove is formed in the drill body, a plurality of cutting edges are arranged at the top of the drill body at intervals, the cutting edges form a cutting top, at least two auxiliary grooves are formed in each cutting edge at intervals, and the top of each cutting top is provided with a cutting slope inclining towards one side. And a cutting sharp surface is formed on one side of the cutting inclined surface. At least two auxiliary grooves are formed in the cutting edge, so that the cutting edge forms a sawtooth-shaped structure, the sharpness of the cutting edge is improved, and the overall cutting efficiency is greatly improved. Meanwhile, due to the design, cutting force can be dispersed more evenly, the situation that single-point stress is too large is reduced, and the punching speed is further increased.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a hexagonal shank ceramic drill. Background Art

[0002] With the development of the building and decoration industry, the demand for processing hard and fragile materials such as tiles, glass, marble, and cement brick walls is increasing. These materials often require drilling holes during renovation or renovation to install various fasteners such as hooks and brackets. However, traditional metal drill bits present numerous challenges when processing these materials.

[0003] First, traditional drill bit designs often lack specific consideration for fragile materials. When drilling through materials like tile and glass, the high friction between the drill bit and the material can easily lead to cracks or even breakage on the surface, affecting both aesthetics and safety. Furthermore, the heat generated during drilling can cause partial melting or deformation of the material, further impacting hole quality and drilling efficiency.

[0004] Secondly, the cutting edge design of conventional drill bits is relatively simple and lacks optimization specifically for different material characteristics. This means that when dealing with materials with specific physical properties (such as high hardness and high brittleness), the drill bit often cannot fully perform its due performance, increasing the user's operation difficulty and reducing work efficiency.

[0005] Furthermore, in actual applications, it has been found that many existing drill bits are prone to jamming when encountering hard or complex materials, meaning that the drill bit cannot smoothly enter the material to complete the drilling operation. This situation not only prolongs construction time and increases labor intensity, but also increases costs due to frequent replacement of damaged tools.

[0006] In light of the aforementioned shortcomings, this application aims to provide a new hexagonal-shank ceramic drill that addresses the drawbacks of the prior art through a unique structural design. Specifically, by improving the cutting edge on the drill body—adding auxiliary grooves to form a serrated edge and providing a specially shaped bevel on the top—this application effectively enhances the drill's performance, enabling it to more efficiently and safely complete drilling tasks in various difficult-to-machine materials. Utility Model Content

[0007] In view of the deficiencies in the background technology, the utility model provides a hexagonal shank ceramic drill.

[0008] The technical solution adopted by the utility model is: a hexagonal shank ceramic drill, comprising a drill body, a spiral chip guide groove being provided on the drill body, a plurality of cutting edges being arranged at intervals on the top of the drill body, the plurality of cutting edges forming a cutting top, at least two auxiliary grooves being arranged at intervals on the cutting edges, the top of the cutting top having a cutting bevel inclined to one side, and one side of the cutting bevel forming a cutting tip surface.

[0009] Furthermore, the included angle a between the cutting bevel and the vertical line is 10°-15°.

[0010] Furthermore, the outer side of the cutting edge has an inwardly inclined slope.

[0011] Furthermore, the angle b between the inclined plane and the horizontal line is 15°-25°.

[0012] Furthermore, there are four cutting edges, one of which has two grooves, and the adjacent cutting edge has three grooves.

[0013] Furthermore, the tail of the drill body has a hexagonal rod, and the tail of the hexagonal rod is provided with two arc-shaped concave surfaces at intervals.

[0014] The beneficial effects of the utility model are:

[0015] 1. Improved cutting efficiency: By providing at least two auxiliary grooves on the cutting edge, the cutting edge forms a serrated structure, increasing the sharpness of the cutting edge and significantly improving overall cutting efficiency. At the same time, this design helps to more evenly distribute the cutting force, reducing the situation of excessive force at a single point, and further increasing the drilling speed.

[0016] 2. Enhanced cutting edge sharpness: The serrated cutting edge is sharper than a straight blade, which reduces the friction between the drill bit and the material, reduces energy consumption during the drilling process, and makes it easier to cut inside the material, especially when encountering harder or brittle materials.

[0017] 3. Increase the sharpness of the top: By setting a cutting bevel inclined to one side on the top of the cutting top, a cutting tip is formed on one side of the cutting bevel, which ensures the sharpness of the top while reducing the risk of material damage caused by instantaneous impact. This is especially important for maintaining the overall beauty and safety of the punched object.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 A partial schematic diagram of the top of the drill body.

[0021] Figure 3 Schematic diagram of the top end face of the drill body.

[0022] Figure 1-3 Middle: 1. Drill body; 2. Spiral chip guide groove; 3. Cutting edge; 4. Auxiliary groove; 5. Cutting bevel; 6. Cutting tip; 7. Bevel; 8. Hexagonal rod; 9. Arc-shaped concave surface. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] The utility model provides a ceramic drill with a hexagonal handle.

[0026] In this embodiment, referring to Figure 1-3 The hexagonal shank ceramic drill includes a drill body 1, which is provided with a spiral chip guide groove 2. A plurality of cutting edges 3 are arranged at intervals on the top of the drill body 1, and the plurality of cutting edges 3 form a cutting top. At least two auxiliary grooves 4 are arranged at intervals on the cutting edges. The top of the cutting top has a cutting bevel 5 inclined to one side, and one side of the cutting bevel 5 forms a cutting tip 6.

[0027] In the above technical solution, by providing at least two auxiliary grooves on the cutting edge, the cutting edge has a serrated shape, increasing the sharpness of the cutting edge and cutting efficiency. This design can more effectively cut into the material while reducing the resistance generated during the cutting process, making it particularly suitable for processing brittle materials such as tiles and glass.

[0028] The sideways slope of the cutting tip and the resulting cutting edge further enhance the drill's penetration and drilling accuracy. While maintaining a sharp edge, it also reduces the risk of material breakage from sudden impact, which is particularly important for maintaining the overall aesthetics and safety of the object being drilled. This structure contributes to a smoother and more precise drilling process, reducing the risk of material damage.

[0029] Among them, the distance between the top of the drill bit and the nearest auxiliary groove is between 0.4-0.8mm, which can provide better cutting effect, less drilling resistance and easier drilling.

[0030] Specifically, the included angle a between the cutting bevel and the vertical line is 10°-15°.

[0031] Set the angle between the cutting bevel and the vertical line to between 10° and 15°, more specifically, 15°. Optimizing the cutting angle ensures adequate sharpness while effectively controlling the direction of the cutting force. This specific angle range improves drilling quality and speed while also reducing wear on the drill bit.

[0032] Specifically, the outer side of the cutting edge has an inwardly inclined slope 7.

[0033] Adding an inward-inclined bevel 7 to the outside of the cutting edge can improve cutting sharpness and help better guide the chips to be discharged along the spiral chip guide groove, thus avoiding the problem of chip blockage.

[0034] Specifically, the angle b between the inclined plane and the horizontal line is 15°-25°.

[0035] The angle b between the bevel and the horizontal is set between 15° and 25°, more specifically 20°. This angle helps improve chip evacuation and ensures the stability and effectiveness of the cutting edge on various materials. A suitable angle also reduces cutting heat, protects the machined surface from thermal damage, and improves cutting sharpness.

[0036] Specifically, there are four cutting edges, one of which has two grooves, and the adjacent cutting edge has three grooves.

[0037] By setting different numbers of grooves on different cutting edges (for example, one cutting edge has two grooves, and the adjacent one has three), a diverse distribution of cutting points can be created across the drill bit. This not only improves overall cutting efficiency but also enables the drill bit to adapt to changes in various material properties, enhancing its versatility.

[0038] Specifically, the tail of the drill body has a hexagonal rod 8 , and the tail of the hexagonal rod 8 is provided with two arc-shaped concave surfaces 9 at intervals.

[0039] The hexagonal rod design at the rear of the drill body facilitates tightening or loosening operations using standard tools.

[0040] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A hexagonal shank ceramic drill comprising a drill body, wherein the drill body is provided with a spiral chip guide groove, and a plurality of cutting edges are provided at intervals on the top of the drill body, wherein the plurality of cutting edges form a cutting top, and wherein: At least two auxiliary grooves are arranged at intervals on the cutting edge. The top of the cutting top has a cutting bevel inclined to one side, and one side of the cutting bevel forms a cutting tip.

2. The hexagonal shank ceramic drill according to claim 1, characterized in that: The included angle a between the cutting bevel and the vertical line is 10°-15°.

3. The hexagonal shank ceramic drill according to claim 1, characterized in that: The outer side of the cutting edge has an inwardly inclined slope.

4. The hexagonal shank ceramic drill according to claim 1, characterized in that: The included angle b between the inclined plane and the horizontal line is 15°-25°.

5. The hexagonal shank ceramic drill according to claim 1, characterized in that: There are four cutting edges, one of which has two grooves, and the cutting edge adjacent to the cutting edge has three grooves.

6. The hexagonal shank ceramic drill according to claim 1, characterized in that: The tail of the drill body is provided with a hexagonal rod, and the tail of the hexagonal rod is provided with two arc-shaped concave surfaces at intervals.

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