CN219169689U

CN219169689U - Chip breaking and chamfering integrated drill bit

Info

Publication number: CN219169689U
Application number: CN202223244363.9U
Authority: CN
Inventors: 何力; 俞言杰; 郑胜洪
Original assignee: Jiangsu Yanzhan Metal Products Co ltd
Current assignee: Jiangsu Yanzhan Metal Products Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-13
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a chip breaking and chamfering integrated drill bit, which relates to the technical field of chip breaking and chamfering drill bits and comprises a drill handle, wherein a first chip removal groove, a limiting groove and a tap section are formed in the outer wall of one side of the drill handle, a chamfering sleeve assembly is sleeved on the first chip removal groove, and the limiting groove is communicated with the first chip removal groove; according to the utility model, through the first chip removing groove and the second chip removing groove which are formed in the end head of the whole drill handle, and the two chip removing grooves are communicated, so that the metal chips cut out of the whole drill point enter the chip removing groove, are rolled and discharged through the rotation of the end head, the metal chips are prevented from being attached to the surface of the drill bit, the damage of the wall of the drill bit is avoided, the sleeve shell in the whole first chip removing groove is rotated, the distance between the sleeve shell and the end head is controlled, the control of the chamfering depth of a round hole is realized, the screw is installed in the later stage of drilling, the screw is tightly attached to the drill hole, the head of the screw is not easy to be exposed on the surface of the drill hole, and the potential safety hazard problem is avoided.

Description

Chip breaking and chamfering integrated drill bit

Technical Field

The utility model relates to the technical field of chip breaking chamfering drill bits, in particular to a chip breaking chamfering integrated drill bit.

Background

Drilling refers to the operation of machining holes on solid materials by using a drill bit, chamfering refers to the machining of cutting edges and corners of a workpiece into a certain inclined plane, chamfering is used for removing burrs on parts due to machining, and is also used for facilitating assembly of the parts, chamfering is generally carried out on the end parts of the parts, chip breaking refers to timely cutting off metal chips which are rotationally cut out during the drilling of the end parts of the drill bit, so that the metal chips are prevented from being attached to the drill bit and a drill rod, and the wall of the drill hole is easy to damage and separate prop when serious;

usually, a round hole chamfering bit is adopted for round hole chamfering, so that the outer diameter of a round hole drilled by the bit is slightly larger than the inner diameter, a screw is conveniently and completely screwed into a drilled hole in the later stage, a screw head is prevented from being exposed outside a drilled hole piece, the appearance is influenced, and meanwhile, certain potential safety hazards exist;

therefore, we propose a chip breaking chamfering integrated drill bit.

Disclosure of Invention

The utility model aims to provide a chip breaking and chamfering integrated drill bit to solve the problems that the depth of a round hole chamfer is uncontrollable and the chip breaking and chip removing capacity of the drill bit is weak.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the chip breaking and chamfering integrated drill bit comprises a drill handle, wherein a first chip removing groove, a limiting groove and a tap section are formed in the outer wall of one side of the drill handle, a chamfering sleeve assembly is sleeved on the first chip removing groove, and the limiting groove is communicated with the first chip removing groove;

the chamfering sleeve assembly comprises a sleeve shell, a through hole, chamfering cutting edges and a rotating groove, wherein the sleeve shell is sleeved on the first chip removing groove, the through hole is formed in the sleeve shell, the rotating groove is uniformly formed in the inner wall of the through hole, and the chamfering cutting edges are formed in one end of the sleeve shell.

Further, the fixed orifices have evenly been seted up to one side of tap section, one side and the rotation groove looks joint of tap section area fixed orifices.

Furthermore, the end is installed to the one end of drill shank, and is located one side of end and is fixed with the drill point, the second chip groove has been seted up to both sides and the being located of drill point symmetry on the end.

Further, a fixed slot is formed in one side of the casing, a supporting column is arranged in the fixed slot, and a hexagonal slot is formed in one end of the supporting column.

Further, the diameter of one end of the supporting column positioned in the rotating groove is smaller than the diameter of the fixed hole, and the inner diameter of the tap section is smaller than the inner diameter of the through hole.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the first chip groove and the second chip groove which are formed in the end of the whole drill handle, and the two discharge grooves are communicated, so that the metal chips cut out of the whole drill point enter the discharge grooves, are rolled and discharged through the rotation of the end, the metal chips are prevented from being attached to the surface of the drill bit, the damage of the wall of the drill hole is avoided, the sleeve shell in the whole first chip groove is rotated, the distance between the sleeve shell and the end is controlled, the control of the chamfering depth of the round hole is realized, the screw is installed at the later stage of drilling, the screw is tightly attached to the drill hole, the head of the screw is not easy to be exposed on the surface of a drilling part, and the problem of potential safety hazards is avoided.

Drawings

FIG. 1 is a schematic view of a chip breaking and chamfering integrated drill bit of the present utility model;

FIG. 2 is a schematic view of the chamfer sleeve assembly of the present utility model;

FIG. 3 is a schematic view of the connection structure of the chamfer sleeve assembly and the drill bit according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a casing according to the present utility model;

fig. 5 is a schematic view of the end portion of the drill bit according to the present utility model.

In the figure: 1. a drill shank; 2. a limit groove; 3. tapping sections; 4. a first junk slot; 5. an end head; 6. a drill tip; 7. a chamfer sleeve assembly; 701. a casing; 702. a through hole; 703. chamfering and cutting; 704. a rotating groove; 8. a fixing groove; 9. abutting the column; 10. a hexagonal groove; 11. a fixing hole; 12. and a second junk slot.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

as shown in fig. 1-2, a chamfer sleeve assembly 7 is installed on a first chip groove on one side of the whole drill handle 1, a casing 701 on the whole chamfer sleeve is rotationally connected with the first chip groove, so that the whole casing 701 can rotate on the first chip groove and move up and down, a round hole chamfer drill bit is usually adopted for round hole chamfering, the outer diameter of a round hole drilled by the drill bit is slightly larger than the inner diameter, a screw is conveniently and completely screwed into a drilled hole in the later stage, the screw head is prevented from being exposed outside a drilling piece, the appearance is influenced, and meanwhile, certain potential safety hazards exist, but due to the single fixity of the round hole chamfer drill bit, when the depth of the round hole chamfer is required to be adjusted, a worker is required to replace the size or the model of the drill bit at the moment, the whole casing 701 sleeved on the first chip groove 4 can adjust the distance between the casing 701 and the drill bit end 5, so that the depth of the drill bit is controlled without changing is relatively convenient, and the chamfer of the drill bit is relatively fast;

in specific operation, as shown in fig. 4, a fixing hole 11 is uniformly formed in a tap section 3 at one side of the whole drill handle 1, the outer diameter of the fixing hole 11 is larger than the inner diameter, metal scraps can be discharged in time after the metal scraps are blocked in the fixing hole 11, the whole tap section 3 is clamped with a rotating groove 704 in a through hole 702 of a casing 701, meanwhile, a fixing groove 8 is formed in one side of the rotating groove 704, a propping column 9 is mounted in the whole fixing groove 8, when a user inserts into the fixing groove 8 by using a hexagonal wrench, one end of the hexagonal wrench is clamped with a hexagonal groove 10 at one end of the propping column 9, and therefore, when the propping column 9 moves into the fixing groove 8, one end of the propping column 9 is clamped with the fixing hole 11 on the tap section 3, the whole casing 701 is controlled on the first chip groove 4, and after the distance between the whole end 5 and the casing 701 is controlled, the casing 701 can be fixed, and the drilling chamfering operation is performed;

as shown in fig. 1, in order to facilitate chip removal operation during drilling at the end 5, a second chip removing groove 12 is symmetrically cut at the drill tip 6 of the end 5, so that metal chips are discharged in time at the end 5, and similar to the case of drilling with aluminum materials, the waste chips are easy to be clamped at the second chip removing groove during later drilling due to softer materials, the clamped waste chips damage the inner wall of the whole drilling under the condition that the end 5 continuously rotates for a long time, the later screw is unstable in fixation and easy to shake, and the whole drilling piece is broken seriously;

therefore, the metal chips are discharged conveniently, the whole second chip removing groove 12 is communicated with the first chip removing groove on the tap section 3, the metal chips can be discharged successfully along the first chip removing groove 4, the whole drill bit integrates chamfering and chip breaking, the use is convenient, the limiting groove 2 on one side of the whole drill handle 1 plays a role in limiting the rotation of the casing 701, the chamfering and chip breaking edges 703 on one side of the whole drill handle 1 and the whole casing 701 are made of 1010 high-quality carbon structural steel with machining hardness HRB92-105, the strength is high, the breakage is not easy, and the service life of the whole drill bit is prolonged.

The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the utility model as defined in the accompanying claims.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides an integrative drill bit of chip breaking chamfer, includes drill shank (1), its characterized in that: the outer wall of one side of the drill handle (1) is provided with a first chip removal groove (4), a limiting groove (2) and a tap section (3), a chamfer sleeve assembly (7) is sleeved on the first chip removal groove (4), and the limiting groove (2) is communicated with the first chip removal groove (4);

the chamfering sleeve assembly (7) comprises a sleeve shell (701), a through hole (702), chamfering cutting edges (703) and a rotating groove (704), wherein the sleeve shell (701) is sleeved on the first chip removing groove (4), the through hole (702) is formed in the sleeve shell (701), the rotating groove (704) is uniformly formed in the inner wall of the through hole (702), and the chamfering cutting edges (703) are formed in one end of the sleeve shell (701).

2. The chip breaking and chamfering integrated drill bit as recited in claim 1, wherein: fixing holes (11) are uniformly formed in one side of the tap section (3), and one side of the tap section (3) with the fixing holes (11) is clamped with the rotating groove (704).

3. The chip breaking and chamfering integrated drill bit as recited in claim 1, wherein: the end (5) is installed to the one end of boring handle (1), and is located one side of end (5) and is fixed with drill point (6), second junk slot (12) have been seted up to both sides and the symmetry that are located end (5) of drill point (6).

4. The chip breaking and chamfering integrated drill bit as recited in claim 1, wherein: a fixing groove (8) is formed in one side of the casing (701), a supporting column (9) is arranged in the fixing groove (8), and a hexagonal groove (10) is formed in one end of the supporting column (9).

5. The chip breaking and chamfering integrated drill bit as recited in claim 4, wherein: the diameter of one end of the supporting column (9) positioned in the rotating groove (704) is smaller than the diameter of the fixing hole (11), and the inner diameter of the tap section (3) is smaller than the inner diameter of the through hole (702).