A straight drill bit alloy and drill bit structure

Abstract

The utility model discloses a linear drill alloy and drill structure thereof, the linear drill alloy of its linear drill alloy body including setting up two cutting edges and a horizontal blade, the side of two cutting edges of linear drill alloy body all is provided with the oblique chip guide recess, and the oblique chip guide recess is on the wide side inclined plane of cutting edge, and the drill structure includes above -mentioned linear drill alloy body. The utility model discloses the structure is reasonable, can promote the sharpness of cutting edge when linear drill alloy body drilling, is favorable to the light degree of promotion drilling, can carry out the chip guide simultaneously, has reduced the drilling resistance, is favorable to reducing the wear and tear of linear drill alloy body, has increased the service life, also is favorable to the chip removal chip removal operation, and the efficiency and drilling effectiveness of promotion drilling, the drill structure includes above -mentioned linear drill alloy body, can promote the use stability and service life of whole drill structure.

Description

Technical Field

[0001] This utility model belongs to the field of drill bit technology, specifically relating to a one-piece drill bit alloy and its drill bit structure. Background Technology

[0002] A drill bit is a common drilling structure, which generally includes a screw with a spiral chip guide and a drill bit alloy fixed to the end of the screw to increase strength and toughness. Existing drill bit alloys include a drill bit body and reinforcing ribs, such as shown in CN202022873224.7. Although they can meet the general usage requirements, they are not conducive to chip removal and guiding operations. Furthermore, since the drill bit alloy does not have a corresponding chip guide structure, it is also prone to increased wear, thereby reducing the service life of the drill bit alloy and limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a straight-line drill bit alloy and its drill bit structure that has a reasonable structural design and is conducive to improving service life.

[0004] The technical solution to achieve the purpose of this utility model is a straight drill bit alloy, including a straight drill bit alloy body with two cutting edges and a transverse edge. The two cutting edges of the straight drill bit alloy body are provided with inclined chip guide grooves on their sides, and the inclined chip guide grooves are located on the wide side slope of the cutting edges.

[0005] A further preferred embodiment is that a side chip-guiding groove is provided on the end face of the straight-line drill bit alloy body, and the side chip-guiding groove is inclined from the head end to the tail end of the straight-line drill bit alloy body.

[0006] A further preferred embodiment is that the inclined chip guide groove is a semi-circular groove, and the end of the semi-circular groove is located in the middle of the cutting edge, causing the middle of the cutting edge to be concave.

[0007] A further preferred embodiment is that the inclined chip guide groove is a fingernail-shaped groove, and the apex of the fingernail-shaped groove is located at the edge of the cutting edge's side surface.

[0008] A further preferred embodiment is that the bottom surface of the alloy body of the straight drill bit is designed with an arched hollow shape.

[0009] A further preferred embodiment is that the width of the inclined chip guide groove is 1 / 5 to 1 / 3 of the length of the cutting edge.

[0010] A drill bit structure of a one-piece drill bit alloy includes a drill rod with a spiral chip guide groove, and the head of the drill rod is fixed with the aforementioned one-piece drill bit alloy body.

[0011] A further preferred embodiment is that the spacing between the spiral chip guide grooves of the drill rod is the same.

[0012] A further preferred embodiment is that the width of the spiral chip guide groove on the drill rod near the alloy body of the I-shaped drill bit is smaller than the width of the spiral chip guide groove on the drill rod near the drill shank.

[0013] A further preferred embodiment is that the drill shank of the drill rod is a round drill shank, a square drill shank, or a universal drill shank for five different pits.

[0014] This utility model has positive effects: The structure of this utility model is reasonably designed. It has an inclined chip-guiding groove on the side of the cutting edge of the straight drill bit alloy body. This can improve the sharpness of the cutting edge when drilling with the straight drill bit alloy body, which is conducive to improving the ease of drilling. At the same time, it can also guide chips, reduce drilling resistance, reduce wear on the straight drill bit alloy body, increase service life, and thus improve drilling efficiency and effectiveness.

[0015] The drill bit structure includes the aforementioned straight-line drill bit alloy body, which can improve the overall stability and service life of the drill bit structure, and also facilitate chip removal and chip guiding operations, making it highly versatile. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the second structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the third structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the fourth structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the drill bit structure of this utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the split structure.

[0023] Figure reference numerals: 1. Cutting edge; 2. Chisel edge; 3. Straight drill bit alloy body; 4. Inclined chip guide groove; 5. Lateral chip guide groove; 6. Spiral chip guide groove; 7. Drill rod; 8. V-shaped groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] See Figure 1 A type of straight drill bit alloy includes a straight drill bit alloy body 3 with two cutting edges 1 and one chisel edge 2. The two cutting edges of the straight drill bit alloy body each have inclined chip-guiding grooves 4 on their sides, and these grooves are located on the wide inclined surfaces of the cutting edges. In this embodiment, the cutting edges and chisel edge are conventional structures of the prior art and are not described in detail. The bottom surface of the straight drill bit alloy body is flat, and when connected to the drill rod, it is fixed to the drill rod through the flat surface. The inclined chip-guiding grooves can achieve chip guidance, reducing drilling resistance, thereby reducing wear on the drill bit alloy body and increasing its service life. It is mainly used for drilling needs on walls or floors. Furthermore, the addition of inclined chip-guiding grooves can also increase the sharpness of the cutting edges and facilitate chip guidance and removal, improving drilling efficiency when drilling is required.

[0027] In this embodiment, the inclined chip-guiding groove is a semi-circular groove, with its end located at the center of the cutting edge, causing the center of the cutting edge to be concave. This facilitates effective chip guidance and removal during cutting, and the semi-circular groove improves chip guidance and removal efficiency. In practical applications, the inclined chip-guiding groove can also be a conventional shape such as a V-shape or a U-shape.

[0028] In practical applications, the width of the inclined chip guide groove is 1 / 5 to 1 / 3 of the length of the cutting edge.

[0029] It can be applied to drill pipe structures of different shapes and designs.

[0030] This utility model has positive effects: The structure of this utility model is reasonably designed. It has an inclined chip-guiding groove on the side of the cutting edge of the straight drill bit alloy body. This can improve the sharpness of the cutting edge when drilling with the straight drill bit alloy body, which is conducive to improving the ease of drilling. At the same time, it can also guide chips, which helps to reduce the wear of the straight drill bit alloy body, increase its service life, and thus improve the drilling efficiency and drilling effectiveness.

[0031] The drill bit structure includes the aforementioned straight-line drill bit alloy body, which can improve the overall stability and service life of the drill bit structure, and also facilitate chip removal and chip guiding operations, making it highly versatile.

[0032] Example 2

[0033] See Figure 2 This embodiment is basically the same as Embodiment 1, except that: in this embodiment, the inclined chip-guiding groove is a fingernail-shaped groove, and the apex of the fingernail-shaped groove is located at the edge of the cutting edge. This facilitates effective chip guidance and removal during cutting. The fingernail-shaped groove has a smaller width on the side closer to the cutting edge and a larger width on the side closer to the drill rod, which is beneficial for chip removal. Furthermore, the use of a fingernail-shaped groove does not affect the integrity of the cutting edge, and can meet the cutting requirements of different situations.

[0034] Example 3

[0035] See Figure 3 This embodiment is basically the same as Embodiment 1, except that the bottom surface of the alloy body of the straight drill bit is arched and hollowed out. The arched hollowing out helps to increase the contact area with the drill rod, thereby improving the stability and reliability of the connection, as well as increasing the impact resistance and service life.

[0036] Example 4

[0037] See Figure 4 This embodiment is basically the same as Embodiment 1, except that: a side chip-guiding groove 5 is provided on the end face of the straight drill bit alloy body, and the side chip-guiding groove is inclined from the head end to the tail end of the straight drill bit alloy body. In this embodiment, the end face refers to the end faces of both ends of the long side of the straight drill bit alloy body, specifically as follows: Figure 4 As shown, the side chip-guiding groove is primarily used for lateral chip guidance. Combined with the inclined chip-guiding groove, it improves chip guidance and removal performance. This structure allows for drilling operations on relatively soft surfaces such as walls or floors. The presence of the side chip-guiding groove enhances chip guidance during drilling. Furthermore, during drill rotation, the side chip-guiding groove prevents drill bit jump and vibration, reducing bouncing and vibration forces during drilling, thus improving the smoothness and efficiency of the drilling operation, making it highly versatile. In practical applications, the side chip-guiding groove can also be in conventional shapes such as V-shape or U-shape.

[0038] Example 5

[0039] See Figure 5A drill bit structure of a straight-line drill bit alloy includes a drill rod 7 with a spiral chip guide groove 6, and the head of the drill rod is fixed with the aforementioned straight-line drill bit alloy body. The spiral chip guide grooves of the drill rod are spaced at the same interval. The drill shank of the drill rod can be a round drill shank, a square drill shank, or a five-hole universal drill shank. In this embodiment, an inclined chip guide groove with a certain slope can be provided at the front end of the drill rod, which, together with the straight-line drill bit alloy body, improves chip removal and chip guiding performance, prevents powder and chip accumulation, and improves drilling efficiency. In this embodiment, a V-shaped groove 8 communicating with the spiral chip guide groove is provided on the outer wall of the end of the drill rod connected to the straight-line drill bit alloy body; the V-shaped groove is inclined from the end of the drill rod towards the spiral chip guide groove. In this embodiment, the chip guiding performance can be improved, which is beneficial to improving powder discharge efficiency and chip removal speed, and also improves the stability and service life of the straight-line drill bit alloy body. In practical applications, the depth of the V-shaped groove is deeper at the end near the straight-line drill bit alloy body and shallower at the end near the spiral chip guide groove.

[0040] Example 6

[0041] This embodiment is basically the same as Embodiment 5, except that the width of the spiral chip guide groove on the drill rod near the alloy body of the straight drill bit is smaller than the width of the spiral chip guide groove on the drill rod near the drill shank. The smaller width of the spiral chip guide groove near the alloy body of the straight drill bit allows for rapid rotation and removal of debris from the hole, while the larger width of the spiral chip guide groove near the drill shank provides a larger rear-end chip removal space, improving chip removal performance, preventing chip accumulation, and increasing drilling efficiency.

[0042] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A straight-line drill bit alloy, comprising a straight-line drill bit alloy body having two cutting edges and one chisel edge, characterized in that: The two cutting edges of the alloy body of the straight drill bit are provided with inclined chip guide grooves on their sides, and the inclined chip guide grooves are located on the wide side slope of the cutting edge.

2. The alloy for a one-piece drill bit according to claim 1, characterized in that: The end face of the alloy body of the straight drill bit is provided with a side chip-guiding groove, which is inclined from the head end to the tail end of the alloy body of the straight drill bit.

3. The alloy for a straight drill bit according to claim 1 or claim 2, characterized in that: The inclined chip guide groove is a semi-circular groove, and the end of the semi-circular groove is located in the middle of the cutting edge, causing the middle of the cutting edge to be concave.

4. The alloy for a straight drill bit according to claim 1 or claim 2, characterized in that: The inclined chip guide groove is a fingernail-shaped groove, and the apex of the fingernail-shaped groove is located at the edge of the cutting edge.

5. A one-piece drill bit alloy according to claim 1 or claim 2, characterized in that: The bottom surface of the alloy body of the straight drill bit is designed with an arched hollow shape.

6. The alloy for a straight drill bit according to claim 1 or claim 2, characterized in that: The width of the inclined chip guide groove is 1 / 5 to 1 / 3 of the length of the cutting edge.

7. A drill bit structure of a one-piece drill bit alloy, comprising a drill rod with helical chip guide grooves, characterized in that: The head of the drill rod is fixed with a one-piece drill bit alloy body as described in any one of claims 1 to 6.

8. The drill bit structure of a one-piece drill bit alloy according to claim 7, characterized in that: The drill rod has a V-shaped groove on the outer wall of the end that connects to the alloy body of the one-piece drill bit, which is connected to the spiral chip guide groove. The V-shaped groove slopes from the end of the drill rod toward the spiral chip guide groove.

9. The drill bit structure of a one-piece drill bit alloy according to claim 8, characterized in that: The spacing between the spiral chip guide grooves on the drill pipe is the same.

10. The drill bit structure of a one-piece drill bit alloy according to claim 8, characterized in that: The width of the spiral chip guide groove on the drill rod near the alloy body of the I-shaped drill bit is smaller than the width of the spiral chip guide groove on the drill rod near the drill shank.

11. The drill bit structure of a one-piece drill bit alloy according to claim 9 or claim 10, characterized in that: The drill shank of the drill rod can be a round drill shank, a square drill shank, or a universal drill shank for five different pits.

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