CN218775746U

CN218775746U - Improved structure of drill bit

Info

Publication number: CN218775746U
Application number: CN202222534524.1U
Authority: CN
Inventors: 钟任超; 陈清文
Original assignee: Shanghai Topoint Precision Technology Co
Current assignee: Shanghai Topoint Precision Technology Co
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-03-31
Anticipated expiration: 2032-09-23

Abstract

The utility model provides a drill bit improvement structure, including a drill bit, wherein this drill bit has a stalk portion, one side of this stalk portion is extended there is a cutting part, and be formed with a pointed end portion that is sharp taper shape on the top of this cutting part, and be equipped with between the first cambered surface that this pointed end portion both sides respectively were equipped with and be "U" the sunken first chip breaker of style of calligraphy, and respectively be equipped with a second cambered surface in the adjacent one side of this two first cambered surfaces, and be equipped with between this two second cambered surfaces and be "U" the sunken second chip breaker of style of calligraphy, can borrow foretell this first chip breaker and this second chip breaker and carry out stable chip breaking operation on a predetermined panel in the firm location of the operation of drilling, in order to reach the efficiency of drilling, chip breaking that is difficult for producing deviation, skew.

Description

Improved structure of drill bit

Technical Field

The utility model relates to a drill bit improvement structure especially indicates one kind and borrows the second chip breaker that is equipped with between first chip breaker that is equipped with between the first cambered surface of two and the two second cambered surfaces, makes this drill bit can be more firm when predetermineeing drilling on panel, and is difficult for producing deviation, skew and drills, the efficiency of chip breaking.

Background

In the basic machining operation, besides a lathe, a bench, a planer, a milling machine and a grinding machine, drilling is also an important process in machining, many objects to be machined are subjected to drilling treatment in the manufacturing process, and then necessary holes and the like are generated on the objects to be machined for utilization or further machining treatment, and when the drilling operation is performed, a drill bit is a necessary tool.

SUMMERY OF THE UTILITY MODEL

In view of the above problems and disadvantages, an object of the present invention is to provide an improved structure of a drill bit capable of performing a chip breaking operation firmly and stably.

The utility model provides a drill bit improvement structure, including a drill bit, its characterized in that: the drill bit is provided with a handle part, one side of the handle part is provided with a cutting part which extends in a spiral shape, the top end of the cutting part is provided with a tip part which is in a pointed cone shape, a U-shaped sunken first chip breaking groove is arranged between first cambered surfaces which are respectively arranged at two sides of the tip part, a second cambered surface is respectively arranged at one side adjacent to the two first cambered surfaces, and a U-shaped sunken second chip breaking groove is arranged between the two second cambered surfaces.

Wherein, at least one side of the tip part is concavely provided with a gap extending inwards to the junction of the blade part and the handle part.

Wherein the gap is helical.

Wherein, the tip part is inwards provided with a chip groove extending to the junction of the blade part and the handle part.

Wherein, the chip groove is spiral.

The utility model discloses borrow by above-mentioned component and reach and make this drill bit can be more firm when boring on a predetermineeing panel, and the efficiency of boring, chip breaking that is difficult for producing deviation, skew.

Drawings

Fig. 1 is a perspective view of the improved structure of the drill of the present invention.

Fig. 2 is a front view of the improved structure of the drill bit of the present invention.

Description of reference numerals: 1-a drill bit; 11-a handle; 12-a blade part; 13-a tip portion; 131-a first cambered surface; 1311-first chip breaker; 132-a second arc; 1321-a second chip breaker; 133-gap; 14-chip groove.

Detailed Description

Referring to fig. 1 to 2, which are a perspective view and a front view of the improved structure of the drill bit of the present invention, the improved structure of the drill bit of the present invention mainly includes a drill bit 1, the drill bit 1 has a handle 11, and a blade 12 extends from one side of the handle 11, and a tip 13 in the shape of a taper is formed at the top of the blade 12, and a first chip breaker 1311 in the shape of a "U" is disposed between first curved surfaces 131 disposed at two sides of the tip 13, and second chip breakers 132 are disposed at adjacent sides of the two first curved surfaces 131, and a second chip breaker 1321 in the shape of a "U" is disposed between the two second curved surfaces 132, and a gap 133 in the shape of a spiral is disposed at least one side of the tip 13 and extends inward to the junction of the blade 12 and the handle 11, and the tip 13 is disposed inward to the junction of the blade 12 and the handle 11, and a row of chip breakers 14 in the shape of a spiral is disposed at the junction of the tip 13.

The utility model discloses a bit improved structure is when the practical application, support this pointed end portion 13 of this drill bit 1 on a preset panel (not shown), and this first chip breaker 1311 and this second chip breaker 1321 of this pointed end portion 13 both sides can be firm location on the surface of this preset panel, and the setting of this first chip breaker 1311 and this second chip breaker 1321 has also alleviateed the quality of this pointed end portion 13, weight, can reduce outside aversion momentum and reach the promotion of this drill bit 1 stability in this drill bit 1 pivoted process, and this chip breaker 14 that is equipped with on this drill bit can discharge the incomplete bits that this drill bit 1 produced through rotatory cutting, and can cooperate this clearance 133 that extends on one side at least to assist this chip breaker 14 to discharge unnecessary bits, make this first chip breaker 1311 and this second chip breaker 1321 can carry out the efficiency of chip breaking in the process of incomplete bits, to assist this clearance 133, chip breaker 14 to reach more effective, and borrow this drill bit, make this chip breaker more firm drilling operation, the above-mentioned chip breaker component can carry out the stable chip removal.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An improved structure of a drill bit comprises a drill bit and is characterized in that: the drill bit is provided with a handle part, one side of the handle part is provided with a cutting part which extends in a spiral shape, the top end of the cutting part is provided with a sharp cone-shaped tip part, a U-shaped sunken first chip breaking groove is arranged between first cambered surfaces which are respectively arranged at two sides of the tip part, a second cambered surface is respectively arranged at one adjacent side of the two first cambered surfaces, and a U-shaped sunken second chip breaking groove is arranged between the two second cambered surfaces.

2. The improved structure of drill bit as claimed in claim 1, wherein: at least one side of the tip part is concavely provided with a gap extending inwards to the junction of the blade part and the handle part.

3. The improved structure of a drill bit as claimed in claim 2, wherein: the gap is helical.

4. The improved structure of a drill bit as claimed in claim 1, wherein: the tip part is inwards provided with a chip groove extending to the junction of the blade part and the handle part.

5. The improved structure of a drill bit as claimed in claim 4, wherein: the chip groove is spiral.