Drill bit with high feeding efficiency

Abstract

The utility model discloses a drill bit with high feeding efficiency. The drill bit comprises a drill rod part; the drilling part extends to the front end of the drilling rod part, the drilling part is provided with six spiral chip grooves, the spiral chip grooves form six spiral drilling edges, the spiral drilling edges are divided into two same groups, each group comprises a first drilling edge part, a second drilling edge part and a third drilling edge part, the surfaces of the second drilling edge part and the third drilling edge part are respectively provided with wear-resistant edges, and the wear-resistant edges are arranged in the axial direction. And the width of the wear-resistant edge of the second drill blade part is greater than that of the wear-resistant edge of the third drill blade part. The six spiral drill edges are formed and divided into two groups, and the wear-resistant edges with different widths are sequentially arranged, so that the wear resistance of the drill bit is improved, the drilling efficiency of the drill bit is enhanced, and feeding is smoother.

Description

Technical Field

[0001] The utility model belongs to the technical field of drill bits, and in particular relates to a drill bit with high feeding efficiency. Background Art

[0002] A drill is a tool used to drill through holes or blind holes in solid materials, and can expand existing holes. Drills can be divided into those for rough machining and those for fine machining. Drills for rough machining generally have a large cutting volume, which will cause great wear on the cutting edge during the cutting process, eventually causing the drilling to become slower and slower, resulting in jamming.

[0003] Therefore, a drill bit that is convenient for drilling feed is in urgent need of research. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is to provide a drill bit with high feeding efficiency, so as to avoid the troubles of slow drilling feeding and jamming of the drill bit and easy wear of the drilling edge in the past.

[0005] In order to solve the above technical problems, the utility model discloses a drill bit with high feeding efficiency, comprising:

[0006] Drill pipe section;

[0007] The drilling portion extends from the front end of the drill rod portion, and the drilling portion has six spiral chip grooves. The spiral chip grooves form six spiral drill edges. The spiral drill edges are divided into two identical groups, and each group includes a first drill edge portion, a second drill edge portion, and a third drill edge portion. The surfaces of the second drill edge portion and the third drill edge portion respectively have wear-resistant edges, the wear-resistant edges are arranged axially, and the width of the wear-resistant edges of the second drill edge portion is greater than the width of the wear-resistant edges of the third drill edge portion.

[0008] According to an embodiment of the utility model, the wear-resistant ridges are convex in curvature, and adjacent wear-resistant ridges are spaced apart by concave arc grooves.

[0009] According to an embodiment of the present utility model, the width of the wear-resistant ridge of the second drilling blade portion is 2 mm, and the width of the wear-resistant ridge of the third drilling blade portion is 1 mm.

[0010] According to an embodiment of the present utility model, the wear-resistant edge heights of the second drilling blade portion and the third drilling blade portion are both set to 0.5 mm.

[0011] According to an embodiment of the utility model, the drill rod portion is configured as a round handle.

[0012] Compared with the prior art, the utility model can obtain the following technical effects:

[0013] By forming six spiral drill edges, which are divided into two groups and wear-resistant edges of different widths are set in sequence, its wear resistance is improved, the drilling efficiency of the drill bit is enhanced, and the feeding is smoother.

[0014] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of a drill bit with high feeding efficiency according to an embodiment of the utility model.

[0017] Figure ID

[0018] The drill rod portion 10 , the drilling portion 20 , the spiral chip removal groove 30 , the first drill blade portion 41 , the second drill blade portion 42 , and the third drill blade portion 43 . DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a drill bit with high feeding efficiency according to an embodiment of the utility model.

[0021] As shown in the figure, a drill bit with high feeding efficiency includes: a drill rod portion 10; a drilling portion 20 extending from the front end of the drill rod portion 10, the drilling portion 20 has six spiral chip grooves 30, and the spiral chip grooves 30 form six spiral drill edges, and the spiral drill edges are divided into two identical groups, and each group includes a first drill edge portion 41, a second drill edge portion 41, and a third drill edge portion 42, wherein the second drill edge portion 42 and the third drill edge portion 43 have wear-resistant edges on their surfaces, respectively, and the wear-resistant edges are arranged along the axial direction, and the wear-resistant edge width of the second drill edge portion 42 is greater than the wear-resistant edge width of the third drill edge portion 43.

[0022] In one embodiment of the utility model, the drill rod portion 10 is configured as a round handle for assembly to an electric tool, and a drilling portion 20 is extended from the front end. The drilling portion 20 is machined to form six spaced spiral cutting edges for chip removal, and spiral drill blades are formed at intervals. The spiral drill blades are configured into two identical groups, each with three pieces, which are divided into a first drill blade portion 41, a second drill blade portion 41, and a third drill blade portion 42. Among them, the first drill blade portion 41 is a smooth surface, and the second drill blade portion 42 is provided with a plurality of transverse wear-resistant edges, which are arranged axially from back to front. The third drill blade portion 43 is designed in the same way, but its wear-resistant edge width is smaller, so it appears to be more dense. When drilling, the six spiral drill blades cooperate with each other and drill continuously. At the same time, the wear-resistant edges separated by the external intervals can enhance the wear resistance of the drill blade, while maintaining the drilling efficiency, smooth hole wall, and strong durability and practicality.

[0023] Preferably, the wear-resistant edges have a convex curvature, and adjacent wear-resistant edges are spaced by concave arc grooves, so as to be distributed in a wave shape, be wear-resistant, and feed smoothly.

[0024] Furthermore, the wear-resistant ridge width of the second drilling blade portion 42 is 2 mm, and the wear-resistant ridge width of the third drilling blade portion 43 is 1 mm. The size is small, the arrangement is dense, and the wear resistance is guaranteed.

[0025] In addition, the wear-resistant edge heights of the second drilling blade portion 42 and the third drilling blade portion 43 are both set to 0.5 mm to avoid affecting the sharpness of the cutting edge and ensure drilling efficiency.

[0026] In summary, the utility model forms six spiral drill blades, which are divided into two groups and sequentially set wear-resistant edges of different widths, thereby improving the wear resistance, enhancing the drilling efficiency of the drill bit, and making the feeding smoother.

[0027] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A drill bit with high feeding efficiency, characterized in that: include: Drill pipe section; A drilling portion extending from the front end of the drill rod portion, the drilling portion having six spiral chip grooves, the spiral chip grooves forming six spiral drill blades, the spiral drill blades being divided into two identical groups, and each group comprising a first drill blade portion, a second drill blade portion, and a third drill blade portion, wherein the surfaces of the second drill blade portion and the third drill blade portion respectively have wear-resistant ridges, the wear-resistant ridges being arranged axially, and the width of the wear-resistant ridges of the second drill blade portion being greater than the width of the wear-resistant ridges of the third drill blade portion.

2. The drill bit with high feeding efficiency according to claim 1, characterized in that: The wear-resistant edges have a convex curvature, and adjacent wear-resistant edges are spaced apart by concave arc grooves.

3. The drill bit with high feeding efficiency according to claim 1, characterized in that: The width of the wear-resistant ridge of the second drilling blade portion is 2 mm, and the width of the wear-resistant ridge of the third drilling blade portion is 1 mm.

4. The drill bit with high feeding efficiency according to claim 1, characterized in that: The wear-resistant edge heights of the second drilling blade portion and the third drilling blade portion are both set to 0.5 mm.

5. The drill bit with high feeding efficiency according to claim 1, characterized in that: The drill rod portion is configured as a round handle.

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