Positioning drill bit

Abstract

The utility model discloses a positioning drill bit which comprises a drill handle and a drill rod integrally formed on the drill handle, at least two drill bits are arranged on the front end face of the drill rod, a positioning drill bit is arranged at the central position of the end face of the adjacent drill bits, and a cutting blade and a reaming cutter are arranged on each drill bit. On the basis of being reasonable in design and simple in structure, the reamer can carry out higher reaming and cutting, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a positioning drill bit. Background Technology

[0002] Drill bits are an essential tool in drilling and cutting tools. A drill bit is a rod that can drill holes, typically made of alloy. It includes a shank and a drill rod, with the drill rod usually having several helical cutting edges. Existing drill bits are prone to vibration during drilling, resulting in burrs and uneven inner surfaces in the drilled hole, leading to poor drilling quality and affecting the installation of parts. Therefore, a positioning drill bit, as disclosed in Chinese Utility Model Patent No. CN218396074U, has emerged, including a shank and a drill rod, with the drill rod having several helical cutting edges. The cutting edges are arranged in a circumferential array on the drill rod. A positioning head is provided at the center of the side of the drill rod facing away from the drill shank. The positioning head has a spiral positioning edge arranged around its outer wall. The positioning head is conical, and the apex angle of the positioning head is located on the axis of the drill rod. The apex angle of the positioning head is an acute angle. Although a positioning drill bit can pre-drill a positioning hole to reduce vibration, the cutting tip at the front end of the drill rod still cannot effectively cut and enlarge the hole. Therefore, the cutting effect and efficiency are not high enough and cannot meet the usage requirements. It is necessary to improve the existing technology. Utility Model Content

[0003] (a) Technical problems that need to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a positioning drill bit, which is reasonably designed and simple in structure, and can perform higher hole enlargement and cutting, thereby improving production efficiency.

[0005] (II) Technical solutions required

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A positioning drill bit includes a drill shank and a drill rod integrally formed thereon. At least two drill bits are provided on the front end face of the drill rod. A positioning drill bit is provided at the center position of the end face of an adjacent drill bit. Each drill bit is provided with a cutting blade and a reamer.

[0008] Preferably, two or three drill bits are used, and the two or three drill bits are evenly spaced on the front end face of the drill rod, and the two or three drill bits and the drill rod are integrally formed.

[0009] Preferably, the drill rod and the drill bit are connected as a whole by a connecting part, and the diameter of the connecting part is smaller than the diameter of the drill rod.

[0010] Preferably, the drill rod is provided with a helical cutting edge.

[0011] Preferably, the drill rod is a smooth round rod.

[0012] Preferably, the drill shank is a cylinder or a regular hexagonal prism.

[0013] Preferably, the drill shank is provided with a groove.

[0014] Preferably, the cutting blade is disposed on one side of the drill bit, and the upper end face of the cutting blade is higher than the upper end face of the drill bit. The cutting blade and one side of the drill bit are integrally formed. The reaming cutter is disposed on the circumference of the drill bit, and the upper end face of the reaming cutter is higher than the upper end face of the drill bit. The reaming cutter and the drill bit are integrally formed.

[0015] Preferably, the upper end face of the reaming tool is arrow-shaped.

[0016] (III) Beneficial effects to be achieved

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

[0018] Firstly, the front end face of the drill rod of this utility model is provided with at least two drill bits, and a positioning drill bit is provided at the center of the end face of adjacent drill bits. Each drill bit is provided with a cutting blade and a reaming cutter. Based on its reasonable design and simple structure, it can perform higher reaming and cutting, thereby improving production efficiency.

[0019] Secondly, the drill bit of this utility model uses two or three drill bits, which are evenly spaced on the front end face of the drill rod. The two or three drill bits and the drill rod are integrally formed. This arrangement is reasonable, simple in structure, easy to manufacture, and has a variety of types, providing a wide range of choices and making it more conducive to meeting the needs of different users. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall design of this utility model.

[0022] Figure 3 This is a schematic diagram of Embodiment 1 of the present invention, which includes three drill bits and a spiral cutting edge.

[0023] Figure 4 This is a schematic diagram of Embodiment 2 of the present invention, which includes three drill bits and a spiral cutting edge.

[0024] Figure 5This is a schematic diagram of Embodiment 1 of the present invention, which includes two drill bits and a spiral cutting edge.

[0025] Figure 6 This is a schematic diagram of Embodiment 2 of the present invention, which includes two drill bits and a spiral cutting edge.

[0026] Figure 7 This is a schematic diagram of Embodiment 3 of the present invention, which includes two drill bits and a spiral cutting edge.

[0027] Figure 8 This is a schematic diagram of an embodiment of the present invention, which includes three drill bits and a smooth round rod.

[0028] Figure 9 This is a schematic diagram of Embodiment 2 of the present invention, which includes three drill bits and a smooth round rod.

[0029] Figure 10 This is a schematic diagram of Embodiment 3 of the present invention, which includes three drill bits and a smooth round rod.

[0030] Figure 11 This is a schematic diagram of an embodiment of the present invention, which includes two drill bits and a smooth round rod.

[0031] Figure 12 This is a schematic diagram of Embodiment 2 of the present invention, which includes two drill bits and a smooth round rod.

[0032] Figure 13 This is a schematic diagram of Embodiment 3 of the present invention, which includes two drill bits and a smooth round rod.

[0033] In the figure: 1, drill shank; 2, drill rod; 3, drill bit; 4, positioning drill bit; 5, cutting blade; 6, reamer; 21, connecting part; 22, helical cutting edge. Detailed Implementation

[0034] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0035] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0038] Example 1: See Figure 1 and Figure 2 A positioning drill bit includes a drill shank 1 and a drill rod 2 integrally formed on the drill shank 1. At least two drill bits 3 are provided on the front end face of the drill rod 2. A positioning drill bit 4 is provided at the center of the end face of an adjacent drill bit 3. Each drill bit 3 is provided with a cutting blade 5 and a reaming cutter 6. This arrangement is reasonable, simple in structure, easy to manufacture, and can perform higher reaming and cutting, thus improving production efficiency.

[0039] Example 2: This can be described based on Example 1 or Example 2, such as... Figures 1 to 13As shown, the drill bit 3 is made of two or three pieces, which are evenly spaced on the front end face of the drill rod 2. The two or three drill bits 3 are integrally formed with the drill rod 2. This not only provides a variety of types and a wide range of choices, but also makes the structure more robust and greatly improves the service life.

[0040] Example 3: This can be described based on Example 1 or Example 2, such as... Figures 1 to 13 As shown, the drill rod 2 and the drill bit 3 are connected as one unit by a connecting part 21. The diameter of the connecting part 21 is smaller than the diameter of the drill rod 2, which increases the firmness of the connecting part 21. At the same time, this setting greatly improves the structural firmness of the drill rod 2 and the drill bit 3.

[0041] Example 4: This can be described based on Example 1, Example 2, or Example 3, such as... Figures 1 to 7 As shown, the drill rod 2 is equipped with a spiral cutting edge 22, which is more conducive to drilling deep holes.

[0042] Example 5: This can be described based on Example 1, Example 2, or Example 3, such as... Figures 8 to 13 As shown, drill rod 2 is a smooth round rod, which is more conducive to better internal penetration. Since no slots are made, it greatly improves the stability of operation.

[0043] Example 6: This can be described based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as... Figures 1 to 13 As shown, drill shank 1 can be cylindrical or hexagonal, offering a variety of types and a wide range of choices. Further explanation is provided below. Figures 1 to 13 As shown, the drill shank 1 is provided with a groove. In this embodiment, there is one groove, but there may also be at least two grooves, which can be determined according to the actual situation. This setting is conducive to engaging with the outside and improving the firmness of the connection with the external equipment.

[0044] Example 7: This can be described based on Example 1, Example 2, Example 3, Example 4, Example 5, or Example 6, such as... Figures 1 to 13 As shown, the cutting blade 5 is positioned on one side of the drill bit 3, and its upper surface extends above the upper surface of the drill bit 3, which facilitates cutting. The cutting blade 5 is integrally formed with or welded to one side of the drill bit 3, enhancing structural robustness. The reamer 6 is positioned on the circumference of the drill bit 3, and its upper surface extends above the upper surface of the drill bit 3, further facilitating cutting. The reamer 6 is integrally formed with or welded to the drill bit 3, significantly improving structural robustness. Furthermore, the upper surface of the reamer 6 is arrow-shaped, a feature that enhances cutting and hole enlargement.

[0045] All standard parts used in this application can be purchased from the market, and the specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology, and will not be described in detail here.

[0046] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A positioning drill bit, comprising a drill shank (1) and a drill rod (2) integrally formed therefrom, characterized in that: The front end face of the drill rod (2) is provided with at least two drill bits (3), and a positioning drill bit (4) is provided at the center of the end face of the adjacent drill bits (3). Each drill bit (3) is provided with a cutting blade (5) and a reamer (6).

2. The positioning drill bit of claim 1, wherein: The drill bit (3) is two or three, and the two or three drill bits (3) are evenly spaced on the front end face of the drill rod (2), and the two or three drill bits (3) and the drill rod (2) are integrally formed.

3. A positioning drill bit as claimed in claim 1 or 2, characterized in that: The drill rod (2) and the drill bit (3) are connected as one unit by a connecting part (21), the diameter of which is smaller than the diameter of the drill rod (2).

4. The positioning drill bit of claim 3, wherein: The drill rod (2) is provided with a helical cutting edge (22).

5. The positioning drill bit of claim 3, wherein: The drill rod (2) is a smooth round rod.

6. The positioning drill bit of claims 1 or 2 or 4 or 5, wherein: The drill shank (1) is made of a cylinder or a regular hexagonal prism.

7. The positioning drill bit of claim 6, wherein: The drill shank (1) is provided with a groove.

8. The positioning drill bit of claims 1 or 2 or 4 or 5 or 7, wherein: The cutting blade (5) is disposed on one side of the drill bit (3), and the upper end face of the cutting blade (5) is higher than the upper end face of the drill bit (3). The cutting blade (5) and one side of the drill bit (3) are integrally formed. The reaming cutter (6) is disposed on the circumference of the drill bit (3), and the upper end face of the reaming cutter (6) is higher than the upper end face of the drill bit (3). The reaming cutter (6) and the drill bit (3) are integrally formed.

9. The positioning drill bit of claim 8, wherein: The upper end face of the reamer (6) is arrow-shaped.

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