CN216176924U - Positive and negative chamfering drill - Google Patents
Positive and negative chamfering drill Download PDFInfo
- Publication number
- CN216176924U CN216176924U CN202122660479.XU CN202122660479U CN216176924U CN 216176924 U CN216176924 U CN 216176924U CN 202122660479 U CN202122660479 U CN 202122660479U CN 216176924 U CN216176924 U CN 216176924U
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- chamfer
- drill
- positive
- drill bit
- negative
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Abstract
The utility model discloses a positive and negative chamfering drill which comprises a drill shaft and a drill bit, wherein the drill bit is arranged at one end of the drill shaft and correspondingly forms an integrated structure, cutting edges and cutting grooves which are distributed at intervals in a spiral structure are arranged on the drill bit, and chamfers are arranged on the cutting edges of the drill bit and comprise a first chamfer at the front part and a second chamfer at the rear part. According to the utility model, the reverse chamfer and the positive chamfer structures are formed by adding the chamfer process on the drill bit, so that one cutter can finish the processing effects of three kinds of cutters, thereby accelerating the production efficiency and saving the cost for users.
Description
Technical Field
The utility model relates to the field of cutters for machining industries, in particular to a positive and negative chamfering drill.
Background
The traditional machining tool is used for machining a positive and negative chamfer hole, a drill bit, a negative chamfer tool and a positive chamfer tool are needed, so that the machining beat is influenced, 3 times of tool setting calibration is needed, and the whole machining efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a positive and negative chamfering drill which can enable a cutter to finish the processing effects of three kinds of cutters by adding a chamfering process on a drill bit to process and form a negative chamfering structure and a positive chamfering structure, thereby accelerating the production efficiency and saving the cost for a user.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a positive and negative chamfer bores, includes drill spindle and drill bit, the drill bit sets up in drill spindle one end and corresponds formation integral type structure, be provided with helical structure interval distribution's cutting edge and cutting flutes on the drill bit, be provided with the chamfer on the cutting edge of drill bit, including anterior first chamfer and the second chamfer at rear portion.
In a preferred embodiment of the utility model, the cutting edge is arranged in a middle part of the drill bit around an axially annular concave chamfer groove.
In a preferred embodiment of the present invention, the chamfer groove and the front portion of the cutting edge are provided with a first chamfer of a reverse chamfer structure.
In a preferred embodiment of the utility model, the chamfer groove and the rear part of the cutting edge are provided with a second chamfer of a positive chamfer structure.
The utility model has the beneficial effects that: according to the utility model, the reverse chamfer and the positive chamfer structures are formed by adding the chamfer process on the drill bit, so that one cutter can finish the processing effects of three kinds of cutters, thereby accelerating the production efficiency and saving the cost for users.
Drawings
FIG. 1 is a front view of a preferred embodiment of a positive and negative chamfer drill of the present invention;
FIG. 2 is a schematic diagram of a drilling structure of a forward and reverse chamfer drill according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of a reverse chamfer structure of a forward and reverse chamfer drill according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a positive chamfer structure of a positive and negative chamfer drill according to a preferred embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 in conjunction with fig. 2-4, an embodiment of the present invention includes: the utility model provides a positive and negative chamfer bores, includes drill spindle 1 and drill bit 2, drill bit 2 sets up in 1 one end of drill spindle and corresponds and form the integral type structure, guarantees the use intensity of whole structure.
The drill bit 2 is provided with cutting edges 3 and cutting grooves 4 which are distributed at intervals in a spiral structure and are used for cutting and chip removal.
The cutting edge 3 is arranged in the middle of the drill bit 2 around the axial direction to form an annular concave chamfer groove 5, and is formed by processing through a chamfer cutter process. The front parts of the chamfer groove 5 and the cutting edge 3 are provided with a first chamfer 6 of a reverse chamfer structure for the rotary reverse chamfer of a workpiece, and the rear parts of the chamfer groove 5 and the cutting edge 3 are provided with a second chamfer 7 of a positive chamfer structure for the rotary forward chamfer after the reverse chamfer.
The utility model relates to a positive and negative chamfering drill, which is characterized in that a chamfering process is added on a drill bit to machine and form a positive chamfering structure and a negative chamfering structure, so that one cutter can finish the machining effects of three cutters, and the production efficiency is accelerated for a user and the cost is saved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The utility model provides a positive and negative chamfer bores, includes drill spindle and drill bit, the drill bit sets up in drill spindle one end and corresponds formation integral type structure, be provided with helical structure interval distribution's cutting edge and cutting flutes on the drill bit, its characterized in that: and chamfers are arranged on the cutting edge of the drill, and comprise a first chamfer at the front part and a second chamfer at the rear part.
2. The positive and negative chamfer drill according to claim 1, wherein: the cutting edge is arranged in the middle of the drill bit and is arranged in an annular concave chamfer groove around the axial direction.
3. The positive and negative chamfer drill of claim 2, wherein: the chamfer groove and the front part of the cutting edge are provided with a first chamfer of a reverse chamfer structure.
4. The positive and negative chamfer drill of claim 2, wherein: and a second chamfer of a positive chamfer structure is arranged at the rear parts of the chamfer groove and the cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122660479.XU CN216176924U (en) | 2021-11-02 | 2021-11-02 | Positive and negative chamfering drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122660479.XU CN216176924U (en) | 2021-11-02 | 2021-11-02 | Positive and negative chamfering drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216176924U true CN216176924U (en) | 2022-04-05 |
Family
ID=80899282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122660479.XU Active CN216176924U (en) | 2021-11-02 | 2021-11-02 | Positive and negative chamfering drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216176924U (en) |
-
2021
- 2021-11-02 CN CN202122660479.XU patent/CN216176924U/en active Active
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