CN204818198U - drill - Google Patents

Abstract

The utility model discloses a drill bit, including handle of a knife and tool bit, the tool bit includes the body with the end connection of handle of a knife and locates and be first side sword and the second side sword of heliciform connection on the body, sunk part between first side sword and the second side sword forms first chip groove and second chip groove, the tip of first side sword is equipped with first end sword, the tip of second side sword is equipped with the second end sword, form the main drill point between first end sword and the second end sword, the junction of first end sword and first side sword is equipped with first vice drill point, the junction of second end sword and second side sword is equipped with second vice drill point, first vice drill point and second vice drill point are protruding towards the direction of main drill point, and the position is close to the handle of a knife relatively to the main drill point; this internal cavity that is equipped with, be equipped with first breach on the body between first chip groove and the handle of a knife, first breach and cavity intercommunication. The phenomenon of production burr on the reducible processing product in-process product of drill bit to can polish the burr of production and clear away, improve product quality.

Description

drill

technical field

The utility model relates to the technical field of cutting tools, in particular to a drill bit.

Background technique

The drill bit is a tool commonly used in the field of cutting and drilling. It processes the workpiece through the drill tip on its top, and is usually used for drilling or grinding the hole of the workpiece. During the processing, the drill tip interacts with the workpiece. When the product is about to be drilled through, the bottom surface of the product will be pierced by a large drilling force. In this way, many burrs will appear on the bottom surface of the product, making the product fail to meet the requirements.

In addition, the existing drill bit guides the chips cut out during the machining of the workpiece to the bottom and discharges them through the helical flute, thereby preventing the impact force generated by the chips during the machining process from affecting the product and the drill bit. , It was found that only relying on the spiral flute to discharge chips, there will still be burrs on the product.

Utility model content

Based on this, the utility model provides a ball cutter. The main drill tip processes the workpiece. After the product is drilled, the main drill tip penetrates the product, and the first auxiliary drill tip and the second auxiliary drill tip contact the product, resulting in The burr can be removed by grinding the above-mentioned auxiliary drill tip, which can improve the product quality; and reduce the burr of the product due to the impact of debris, and further improve the product quality.

In order to realize the purpose of the utility model, the utility model adopts the following technical solutions:

A drill bit, comprising a handle and a cutter head arranged at the end of the handle, the cutter head includes a body connected to the end of the handle and a second helically connected body arranged on the body One side edge and the second side edge, there is a concave part between the first side edge and the second side edge, which forms the first chip removal groove and the second chip removal groove, and the end of the first side edge is provided with There is a first end edge, the end of the second side edge is provided with a second end edge, a main drill point is formed between the first end edge and the second end edge, the first end edge and the The joint of the first side edge is provided with a first auxiliary drill point, the joint of the second end edge and the second side edge is provided with a second auxiliary drill point, and the first auxiliary drill point and the The second auxiliary drill point protrudes toward the direction of the main drill point, and the distance between the position of the first auxiliary drill point and the second auxiliary drill point and the tool handle is smaller than the distance between the main drill point and the main drill point. The distance between the knife handle; the body is provided with a cavity, and a first notch is provided between the first flute on the body and the tool handle, and the first notch communicates with the cavity.

In one embodiment, a second notch is provided on the first end edge, and the second notch communicates with the cavity.

In one of the embodiments, a third notch is provided on the second end edge, and the third notch communicates with the cavity.

In one of the embodiments, the first end edge is provided with a second notch, the second end edge is provided with a third notch, the second notch and the third notch are both connected to the cavity connected.

In one of the embodiments, a fourth notch is provided on the first side edge, and the fourth notch communicates with the cavity.

In one of the embodiments, a fifth notch is provided on the second side edge, and the fifth notch communicates with the cavity.

In one of the embodiments, the first side edge is provided with a fourth notch, and the second side edge is provided with a fifth notch, and both the fourth notch and the fifth notch are connected to the cavity. connected.

In one of the embodiments, the first auxiliary drill point is arranged flush with the second auxiliary drill point.

In one of the embodiments, the first auxiliary drill point and the second auxiliary drill point are arranged symmetrically.

In one of the embodiments, the first auxiliary drill tip and the second auxiliary drill tip are arranged axially symmetrically.

Drill bit described in the utility model, its beneficial effect compared with prior art is:

The drill is provided with a first auxiliary drill point and a second auxiliary drill point, the first auxiliary drill point and the second auxiliary drill point protrude toward the direction of the main drill point, and the position is closer to the handle than the main drill point. The drill tip processes the workpiece. After the product is drilled through, the main drill tip passes through the product. The first auxiliary drill tip and the second auxiliary drill tip are in contact with the product. The burrs generated can be removed by grinding the above auxiliary drill tip, thereby reducing the product. There is a cavity in the body, and there is a first gap between the first chip removal groove on the body and the handle, and the first gap communicates with the cavity, so that the first chip removal groove is close to the body One end of the drill can better guide the chips to be discharged from the first notch to the cavity and the outside of the drill bit, reducing the burrs of the product due to the impact of the chips and improving the product quality.

Description of drawings

Fig. 1 is one of the structural representations of the drill bit described in Embodiment 1 of the present utility model;

Fig. 2 is the second structural diagram of the drill bit described in the first embodiment of the utility model;

Fig. 3 is a structural schematic diagram of the drill bit described in the second embodiment of the utility model;

Fig. 4 is an enlarged view at point A in Fig. 3 .

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the present invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model.

For example, a drill bit includes a handle and a cutter head arranged at the end of the handle, the cutter head includes a body connected to the end of the handle and a spirally connected The first side edge and the second side edge, there is a concave part between the first side edge and the second side edge, which forms the first chip flute and the second chip flute, and the end of the first side edge A first end edge is provided at the end of the second side edge, a second end edge is provided at the end of the second side edge, a main drill point is formed between the first end edge and the second end edge, and the first end edge A first auxiliary drill point is provided at the connection with the first side edge, a second auxiliary drill point is provided at the connection between the second end edge and the second side edge, and the first auxiliary drill point is connected to the second side edge. The second auxiliary drill point protrudes toward the direction of the main drill point, and the distance between the first auxiliary drill point and the second auxiliary drill point and the tool handle is smaller than the main drill point The distance from the tool handle; a cavity is provided in the body, and a first gap is provided between the first flute on the body and the tool handle, and the first gap communicates with the cavity .

Embodiment one

1 and 2, the drill 100 described in the utility model includes a handle 10 and a cutter head 20, the handle 10 is cylindrical, and the cutter head 20 is located at the end of the handle 10. In other embodiments, the handle 10 can also be in the shape of a square, a triangle, etc., not limited to but preferably a cylindrical shape.

Referring to Figures 1 and 2, the cutter head 20 includes a body 21 and a first side edge 202 and a second side edge 204 disposed on the body 21, the first side edge 202 and the second side edge 204 are connected in a spiral shape, the first The recessed portion between the side edge 202 and the second side edge 204 forms a first flute 206 and a second flute 208, and the first flute 206 and the second flute 208 are used to accommodate and discharge the processed product resulting debris.

1 and 2, the end of the first side edge 202 is provided with a first end edge 2022, the end of the second side edge 204 is provided with a second end edge 2042, between the first end edge 2022 and the second end edge 2042 The main drill point 210 is formed between them, wherein the first end edge 2022 and the second end edge 2042 respectively have three corners, the common angle of the two is the main drill point 210, and the main drill point 210 protrudes toward the direction away from the main body 21 , to facilitate drilling into the product to be processed. The other corner of the first end edge 2022, that is, one of the corners of the connection between the first end edge 2022 and the first side edge 202, is provided with the first secondary drill point 212, and the other corner of the second end edge 2042 is the second end. A second auxiliary drill point 214 is provided at one corner of the connection between the cutting edge 2042 and the second side edge 204 , preferably, the first auxiliary drill point 212 and the second auxiliary drill point 214 are flush with each other. The first auxiliary drill point 212 and the second auxiliary drill point 214 protrude toward the direction of the main drill point 210 , and the positions of the first auxiliary drill point 212 and the second auxiliary drill point 214 are closer to the tool holder 10 than the main drill point 210 , that is, from a perspective perpendicular to the tool holder 10, the positions of the first auxiliary drill point 212 and the second auxiliary drill point 214 are lower than the main drill point 210, so that the main drill point 210 first drills into the product and penetrates the product. After drilling through the product, the main drill point 210 is drilled out of the borehole of the product. Since the first auxiliary drill point 212 and the second auxiliary drill point 214 are lower than the main drill point 210, the first auxiliary drill point 212 and the second auxiliary drill point 214 are lower than the main drill point 210. The second auxiliary drill tip 214 is in contact with the product, and can grind off the burrs generated on the product.

In order to reduce the burrs of the product due to the impact of chips, for example, referring to Fig. 1, a cavity 213 is provided in the body 21, a first gap 215 is provided between the first chip removal groove 206 on the body 21 and the handle 10, the first The notch 215 communicates with the cavity 213, so that the end of the first flute 206 close to the body 21 can better guide the debris to be discharged from the first notch 215 to the cavity 213 and the outside of the drill bit, reducing the impact of the product due to debris. Burrs, improve product quality. For example, the first notch is generally arc-shaped or has an arc-shaped exit structure.

Embodiment two

Referring to Figures 3 and 4, the drill bit 200 described in the present utility model differs from the first embodiment in that the first end edge 2022 is provided with a second notch 217, and the second notch 217 communicates with the cavity 213, thereby resulting in broken Chips can also fall into the cavity 213 from the second notch 217, and then be discharged by the first notch 215 at the bottom of the cavity 213 to speed up chip removal; or the second end edge 2042 is provided with a third notch 219, the third The notch 219 is in communication with the cavity 213 , so that the generated chips can also fall into the cavity 213 from the third notch 219 , and then be discharged from the first notch 215 at the bottom of the cavity 213 , so as to speed up chip removal.

In order to improve chip removal efficiency, for example, a fourth notch 220 is also provided on the first side edge 202, and the fourth notch 220 communicates with the cavity 213, so that the generated chips can also fall into the cavity from the fourth notch 220 213, and then discharged by the first notch 215 at the bottom of the cavity 213 to speed up chip removal; or a fifth notch 222 is provided on the second side edge 204, and the fifth notch 222 communicates with the cavity 213, so that the chips produced are also It can fall into the cavity 213 from the fifth notch 222 and then be discharged from the first notch 215 at the bottom of the cavity 213 to speed up chip removal.

Embodiment Three

The drill bit described in the utility model is different from the first embodiment in that a second notch 217 is provided on the first end edge 2022, a third notch 219 is provided on the second end edge 2042, and the second notch 217 is connected with the third notch. The notches 219 are all in communication with the cavity 213 , so that the generated debris can also fall into the cavity 213 from the second notch 217 and the third notch 219 , and then be discharged from the first notch 215 at the bottom of the cavity 213 to speed up chip removal.

In order to improve chip removal efficiency, for example, a fourth notch 220 is also provided on the first side edge 202, and a fifth notch 222 is provided on the second side edge 204, and the fourth notch 220 and the fifth notch 222 are connected to the hollow The cavity 213 communicates, so that the generated chips can also fall into the cavity 213 from the fourth notch 220 and the fifth notch 222, and then be discharged from the first notch 215 at the bottom of the cavity 213, so as to speed up chip removal.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a drill bit, comprise handle of a knife and be located at the cutter head of end of described handle of a knife, described cutter head comprises the body that is connected with the end of described handle of a knife and is located at the first side edge and the second side edge that described body connects in the shape of a spiral, between described first side edge and the second side edge, there is sunk part, it forms the first chip area and the second chip area, the end of described first side edge is provided with first end sword, the end of described second side edge is provided with the second end sword, form main apex point between described first end sword and described second end sword, it is characterized in that:

The junction of described first end sword and described first side edge is provided with the first secondary apex point, the junction of described second end sword and described second side edge is provided with the second secondary apex point, described first secondary apex point and described second secondary apex point are protruding towards the direction of described main apex point, and described first secondary apex point and the described position of the second secondary apex point and the distance of described handle of a knife, be less than the distance of described main apex point and described handle of a knife;

Be provided with cavity in described body, described body is provided with the first breach between the first chip area and described handle of a knife, described first breach and described cavity connects.

2. drill bit according to claim 1, is characterized in that: described first end sword is provided with the second breach, described second breach and described cavity connects.

3. drill bit according to claim 1, is characterized in that: described second end sword is provided with the 3rd breach, described 3rd breach and described cavity connects.

4. drill bit according to claim 1, it is characterized in that: described first end sword is provided with the second breach, described second end sword is provided with the 3rd breach, described second breach and described 3rd breach all with described cavity connects.

5. drill bit according to claim 1, is characterized in that: described first side edge is provided with the 4th breach, described 4th breach and described cavity connects.

6. drill bit according to claim 1, is characterized in that: described second side edge is provided with the 5th breach, described 5th breach and described cavity connects.

7. drill bit according to claim 1, it is characterized in that: described first side edge is provided with the 4th breach, described second side edge is provided with the 5th breach, described 4th breach and described 5th breach all with described cavity connects.

8. drill bit according to claim 1, is characterized in that: described first secondary apex point flushes setting with described second secondary apex point.

9. drill bit according to claim 8, is characterized in that: described first secondary apex point and described second secondary apex point are symmetrical arranged.

10. drill bit according to claim 9, is characterized in that: described first secondary apex point and described second secondary apex point axial symmetry are arranged.