A side-discharge drill bit alloy and its drill bit structure

Abstract

This utility model discloses a side-discharge drill bit alloy and its drill bit structure. The side-discharge drill bit alloy includes a straight drill bit alloy body with two cutting edges and one chisel edge. Side-guided chip grooves are provided on both end faces of the straight drill bit alloy body, and the side-guided chip grooves are inclined from the head end to the tail end of the straight drill bit alloy body. The drill bit structure includes a drill rod with a spiral chip guide groove and the aforementioned straight drill bit alloy body. The structure of this utility model is reasonable. The side-guided chip grooves on the side of the straight drill bit alloy body can improve the sharpness of the cutting edges, which is beneficial to improving drilling ease, improving chip removal and guiding performance, reducing drilling resistance, reducing wear, and extending the service life of the overall structure. It is stable and reliable in use. This side-discharge drill bit alloy drill bit structure is beneficial to improving the chip removal and guiding performance of the overall drill bit structure, reducing wear, extending service life, and increasing drilling efficiency.

Description

Technical Field

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

[0002] A drill bit is a common drilling structure, generally consisting of a screw with helical chip guide grooves 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 those shown in CN202022873224.7. Although these can meet general usage requirements, they are not conducive to chip removal and guiding operations. Furthermore, the lack of a corresponding chip guide structure in the drill bit alloy can easily increase wear, thereby reducing the service life of the drill bit alloy. When drilling materials with low hardness, the poor chip removal also reduces drilling efficiency, thus limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a side-discharge drill bit alloy and its drill bit structure that has a reasonable structural design and is conducive to improving chip removal efficiency.

[0004] The technical solution to achieve the purpose of this utility model is a side-discharge drill bit alloy, which includes a straight drill bit alloy body with two cutting edges and one chisel edge. Side-discharge grooves are provided on both end faces of the straight drill bit alloy body. The side-discharge grooves are inclined from the head end to the tail end of the straight drill bit alloy body.

[0005] A further preferred embodiment is that the cross-section of the side chip guide groove is a semi-circular groove.

[0006] A further preferred embodiment is that the width of the side chip guide groove is 1 / 3 to 1 / 7 of the height of the straight drill bit alloy body.

[0007] 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.

[0008] A drill bit structure of a side-discharge 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 straight drill bit alloy body.

[0009] A further preferred embodiment is that the outer wall of the end of the drill rod that connects to the alloy body of the one-piece drill bit is provided with a V-shaped groove that communicates with the spiral chip guide groove.

[0010] The V-shaped groove slopes from the end of the drill rod toward the spiral chip guide groove.

[0011] A further preferred embodiment is that the spacing of 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] This utility model has positive effects: The structure of this utility model is reasonably designed. It has a side chip guide groove on the side of the alloy body of the straight drill bit, which is conducive to improving chip removal and guiding performance, reducing drilling resistance, thereby reducing the wear of the alloy body of the straight drill bit, and extending the service life of the overall structure. Moreover, the side chip guide groove can also increase the sharpness of the cutting edge, which is also conducive to chip guidance and removal. When drilling, it can improve drilling efficiency. Furthermore, when the drill rotates, the side chip guide groove can also prevent the drill bit from jumping and vibrating, which can reduce the bouncing and vibration force during drilling, improve the stability and effectiveness of drilling operation, and make it stable, reliable and widely applicable.

[0014] A side-discharge drill bit alloy drill bit structure, which combines a drill rod with a one-piece drill bit alloy body, is beneficial to improving the chip removal and guiding performance of the overall drill bit structure, reducing wear, increasing service life and drilling efficiency, and is highly usable. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the second structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the drill bit structure of this utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the split structure.

[0020] Reference numerals: 1. Cutting edge; 2. Chisel edge; 3. Straight drill bit alloy body; 4. Lateral chip guide groove; 5. Spiral chip guide groove; 6. Drill rod; 7. V-shaped groove. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] See Figure 1 A side-discharge drill bit alloy includes a straight-shaped drill bit alloy body 3 with two cutting edges 1 and one chisel edge 2. Side-discharge chip-guiding grooves 4 are provided on both end faces of the straight-shaped drill bit alloy body, and these grooves are inclined from the head end to the tail end. In this embodiment, the cross-section of the side-discharge chip-guiding grooves is semi-circular, used for chip guidance and removal during drilling. Because of the side-discharge chip-guiding grooves on the end faces of the straight-shaped drill bit alloy body, it is suitable for drilling into hard surfaces such as walls or floors, improving chip removal, reducing drilling resistance, and reducing wear. Simultaneously, the presence of the side-discharge chip-guiding grooves also improves chip guidance performance during drilling. Furthermore, during drill rotation, the side-discharge chip-guiding grooves prevent drill bit jumps and vibrations, reducing bouncing and vibration forces during drilling, and improving the smoothness and effectiveness of drilling operations. In practical applications, the side-discharge chip-guiding grooves can also be conventional shapes such as V-shapes or U-shapes.

[0024] In this embodiment, the width of the lateral chip guide groove is 1 / 3 to 1 / 7 of the height of the straight-sided drill bit alloy body. The bottom surface of the straight-sided drill bit alloy body is flat. It can be used for drill rods of different shapes or designs.

[0025] This utility model has positive effects: The structure of this utility model is reasonably designed. It has a side chip guide groove on the side of the alloy body of the straight drill bit, which is conducive to improving the chip removal and chip guiding performance. This can reduce the wear of the alloy body of the straight drill bit and extend the service life of the overall structure. Moreover, the side chip guide groove can also increase the sharpness of the cutting edge, which is also conducive to chip guidance and removal. When drilling, it can improve the drilling efficiency. Furthermore, when the drill rotates, the side chip guide groove can also prevent the drill bit from jumping and vibrating, which can reduce the bouncing and vibration force during drilling, improve the stability and effectiveness of drilling operation, and make it stable, reliable and highly applicable.

[0026] Example 2

[0027] See Figure 2 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. This arched hollowing out increases the contact area with the drill rod, improving drilling efficiency and reliability.

[0028] Example 3

[0029] See Figures 3 to 4As shown, a drill bit structure of a side-discharge drill bit alloy includes a drill rod 6 with a spiral chip guide groove 5, and the head of the drill rod is fixed with the aforementioned straight-shaped drill bit alloy body. In this embodiment, the spiral chip guide grooves of the drill rod are spaced evenly. Furthermore, in this embodiment, a V-shaped groove 7 communicating with the spiral chip guide groove is provided on the outer wall of the end of the drill rod connected to the straight-shaped drill bit alloy body; the V-shaped groove slopes from the end of the drill rod towards the spiral chip guide groove. In practical applications, the depth of the V-shaped groove is deeper at the end of the drill bit alloy body and shallower at the end of the spiral chip guide groove. This improves chip guiding performance, facilitates powder discharge efficiency, increases chip removal speed, and also improves the drilling efficiency and service life of the straight-shaped drill bit alloy body. The drill shank can be a round shank, square shank, or a five-flute universal drill shank.

[0030] A side-discharge drill bit alloy drill bit structure, which combines a drill rod with a one-piece drill bit alloy body, is beneficial to improving the chip removal and guiding performance of the overall drill bit structure, reducing wear, increasing service life and drilling efficiency, and is highly usable.

[0031] Example 4

[0032] This embodiment is basically the same as Embodiment 3, except that the width of the spiral chip guide groove near the alloy body of the straight drill bit on the drill rod is smaller than the width of the spiral chip guide groove near the drill shank on the drill rod. 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 chips from the hole, while the larger width of the spiral chip guide groove near the drill shank provides a larger chip removal space at the rear end, which is beneficial for improving chip removal efficiency and preventing chip blockage. In this embodiment, the drill shank of the drill rod is a round shank, square shank, or a five-hole universal drill shank, which can meet the usage requirements of different situations.

[0033] 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.

[0034] 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 side-choosing drill bit alloy comprising a one-letter drill bit alloy body provided with two cutting edges and one chisel edge, characterized in that: The two end faces of the one-piece drill bit alloy body are provided with side chip-guiding grooves, which are inclined from the head end to the tail end of the one-piece drill bit alloy body. The bottom surface of the alloy body of the straight drill bit is designed with an arched hollow shape.

2. A side-choosing drill bit alloy according to claim 1, characterized in that: The cross-section of the side chip guide groove is a semi-circular groove.

3. A side-choosing drill bit alloy according to claim 1, wherein: The width of the side chip guide groove is 1 / 3 to 1 / 7 of the height of the alloy body of the straight drill bit.

4. A drill bit structure of a side-discharge 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 3; 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.

5. The drill bit structure of a side-discharge drill bit alloy according to claim 4, characterized in that: The spacing of the spiral chip guide grooves on the drill pipe is the same.

6. The drill bit structure of a side-discharge drill bit alloy according to claim 4, 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.

7. The drill bit structure of a side-discharge drill bit alloy according to claim 5 or claim 6, characterized in that: The drill rod is a rod with a small diameter at one end and a large diameter at the other end, and the alloy body of the straight drill bit is fixed at the end with the small diameter.

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