CN216782166U

CN216782166U - Three-groove auger bit convenient for chip discharging

Info

Publication number: CN216782166U
Application number: CN202220030188.4U
Authority: CN
Inventors: 林新琳
Original assignee: Jiangxi Xinkeli Tools Co ltd
Current assignee: Jiangxi Xinkeli Tools Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-06-21
Anticipated expiration: 2032-01-05

Abstract

The utility model relates to the technical field of wood processing tools, in particular to a three-groove auger bit convenient for chip discharging, which comprises a bit body and a bit handle which are integrally formed, wherein three spiral grooves are uniformly distributed on the bit body, a conical screw tip is arranged at one end of the bit body, the other end of the bit body is provided with the bit handle, the bit handle comprises a chip discharging handle close to the bit body and a fixing handle far away from the bit body, the chip discharging handle and the fixing handle are arranged in a concentric circle mode, and the diameter of the chip discharging handle is smaller than that of the fixing handle. The utility model aims to solve the problem of removing sawdust when a hole is punched deeply and provides a three-groove auger bit convenient for scrap discharging.

Description

Three-groove auger bit convenient for chip discharging

Technical Field

The utility model relates to the technical field of wood processing tools, in particular to a three-groove auger bit convenient for scrap discharging.

Background

A conventional pilot drill (also called a straight pilot drill) comprises a main cutting edge and a side cutting edge, wherein the main cutting edge mainly cuts wood in the middle of a hole, and the auxiliary cutting edge and a circumferential cutting edge cut the hole wall of the drilled hole, so that the drilled hole wall is smooth and uniform in size.

The existing auger bit for woodworker is composed of screw tip, main cutting edge, cutter body and spiral groove, the screw tip plays the role of central positioning and can produce a forward pulling force to make the drill bit automatically feed, so that the labour intensity is reduced, the cutting is borne by the main cutting edge, and the wood dust is discharged through the spiral groove.

The disadvantage is that when the deep holes are drilled and the spiral grooves are completely embedded in the wood, the spiral grooves cannot be removed effectively.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to solve the problem of removing sawdust when a hole is punched deeply and provides a three-groove auger bit convenient for scrap discharging.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a three-flute auger bit convenient to play bits, includes integrated into one piece's the brill body and bores the handle, bore body evenly distributed has three spiral grooves, just the one end of boring the body is provided with the toper spiral point, the other end of boring the body is provided with the handle, the handle includes and is close to the play bits handle of boring the body and keep away from the fixed handle of boring the body, play bits handle with fixed handle is the concentric circle setting, just the diameter of play bits handle is less than the diameter of fixed handle.

Preferably, one end of the fixing handle, which is far away from the scrap discharging handle, is provided with an internal groove thread in a hollow manner.

Further preferably, a fixing plane is cut on the outer surface of one end of the fixing handle far away from the chip discharging handle.

Preferably, a spiral strip is arranged between every two adjacent spiral grooves, and an undercut edge is arranged on the outer edge of the section, close to the conical spiral tip, of each spiral strip.

Further preferably, the section of the cutting edge is a right triangle, and the hypotenuse of the right triangle is an arc line.

The principle of the utility model is as follows: the drill handle is divided into a chip discharging handle and a fixed handle, wherein the fixed handle is used for being connected with other equipment so as to ensure that the rotation of the drill bit has driving force, and when the spiral groove of the drill bit on the market completely invades into wood, wood chips can not be effectively removed. In addition, compared with a four-groove drill bit or a two-groove drill bit on the market, the drill bit disclosed by the utility model has the advantages that the stability of the drill bit is enhanced through the design of three spiral grooves, and the workload of grooving is reduced while the drilling efficiency is ensured.

In conclusion, the utility model has the following beneficial effects:

firstly, the internal groove threads are arranged to be convenient for connecting with a thread embedded type conversion head which is generally used in the market, so that the utility model can be connected and matched with various machine types;

the fixing plane is arranged to be connected with a universal sleeve type conversion head in the market, and the fixing plane is abutted against a knob screw of the sleeve type conversion head, so that the stability of the sleeve type conversion head is enhanced;

thirdly, the arrangement of the cutting edge is used for cutting off wood fibers, so that the side surface of the hole is smoother;

fourthly, the inclined plane of the cutting edge is set to be an arc-shaped surface, so that the edge end is sharper, and the drilling efficiency is improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a perspective view of the present invention;

FIG. 5 is a view of the interface at section B of FIG. 4;

in the figure:

1. a spiral groove;

2. a conical screw tip;

3. a chip discharging handle;

4. a fixed handle;

5. a helical strip;

6. cutting edge sinking;

7. internal groove threads;

8. and fixing the plane.

Detailed Description

The utility model is described in detail below with reference to the figures and examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or indicate that the indicated weighing or component must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Specifically, referring to fig. 1-2, a three-flute auger bit convenient for chip discharging comprises a drill body and a drill handle which are integrally formed, wherein three spiral grooves 1 are uniformly distributed on the drill body, a conical screw tip 2 is arranged at one end of the drill body, the drill handle is arranged at the other end of the drill body, the drill handle comprises a chip discharging handle 3 close to the drill body and a fixed handle 4 far away from the drill body, the chip discharging handle 3 and the fixed handle 4 are arranged in a concentric circle mode, and the diameter of the chip discharging handle 3 is smaller than that of the fixed handle 4.

According to the technical scheme, the drill handle is divided into the chip discharging handle 3 and the fixing handle 4, wherein the fixing handle 4 is used for being connected with other equipment, so that the rotation of the drill bit is guaranteed to have driving force, when the spiral groove 1 of the drill bit on the market is fully immersed into wood, wood chips cannot be effectively discharged, the diameter of the chip discharging handle 3 is smaller than that of the fixing handle 4, the wood chips can be still discharged from the periphery of the chip discharging handle 3, and as long as the fixing handle 4 is not embedded into the wood, the drill bit can continuously work without stopping to discharge the wood chips, so that the working efficiency of the drill bit is improved. In addition, compared with a four-groove drill bit or a two-groove drill bit on the market, the stability of the drill bit is enhanced through the design of the three spiral grooves 1, and the workload of grooving is reduced while the drilling efficiency is guaranteed.

Referring to fig. 3 in particular, an internal groove thread 7 is hollowed out at one end of the fixing handle 4 far away from the scrap discharging handle 3.

Through the technical scheme, the internal groove threads 7 are convenient to connect with a universal threaded embedded type conversion head in the market, so that the novel screw-thread embedded type conversion head can be connected and matched with various machine types.

In particular, the outer surface of the end of the fixing shank 4 remote from the dust shank 3 is cut with a fixing plane 8.

Through above-mentioned technical scheme, the setting of fixed plane 8 is used for being connected with the general telescope-feed conversion head in market, and fixed plane 8 is inconsistent with the knob screw rod of telescope-feed conversion head, and for the arcwall face, fixed plane 8 can highly laminate with the terminal surface of knob screw rod, strengthens the fixed stability of telescope-feed conversion head.

Referring to fig. 4-5 in detail, a spiral strip 5 is arranged between adjacent spiral grooves 1, and a cutting edge 6 is arranged on the outer edge of the section of the spiral strip 5 close to the conical screw tip 2.

Specifically, the section of the cutting edge 6 is a right triangle, and the hypotenuse of the right triangle is an arc line.

Through above-mentioned technical scheme, setting up of cutting edge 6 is used for cutting off wood fibre, makes the side in hole more level and smooth, and the inclined plane of cutting edge 6 sets up to the arcwall face, makes the sword end more sharp to improve the efficiency of driling.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a three-flute auger bit convenient to play bits, includes integrated into one piece's the brill body and bores the handle, its characterized in that, bore body evenly distributed has three spiral grooves, just the one end of boring the body is provided with the toper spiral point, the other end of boring the body is provided with the handle, the handle includes and is close to bore the bits handle of the body and keep away from bore the fixed handle of the body, the bits handle with fixed handle is concentric circle setting, just the diameter of bits handle is less than the diameter of fixed handle.

2. The three-flute auger bit facilitating chip removal as defined in claim 1, wherein an end of said shank remote from said chip removal shank is hollowed with internal flute threads.

3. A three-fluted auger bit for facilitating chip removal as claimed in claim 1 or claim 2, wherein a fixing flat is cut into the outer surface of the end of the fixing shank remote from the chip shank.

4. The three-flute auger bit facilitating chip removal as claimed in claim 1, wherein a helical strip is provided between adjacent helical flutes, and a cutting edge is provided on the outer edge of the cross section of the helical strip near the conical tip.

5. A three-fluted auger bit for facilitating chip removal as set forth in claim 4, wherein said cutting edge has a right triangle cross-section, the hypotenuse of said right triangle being an arc.