CN216680379U

CN216680379U - Alloy inner-cooling stepped drill convenient for replacing inner cooling liquid

Info

Publication number: CN216680379U
Application number: CN202122376432.0U
Authority: CN
Inventors: 鄂福大
Original assignee: Baidafumei Intelligent Technology Jiangsu Co ltd
Current assignee: Baidafumei Intelligent Technology Jiangsu Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-06-07
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses an alloy inner-cooling stepped drill with conveniently replaced inner cooling liquid. The utility model has the beneficial effects that: the cooling liquid tank is fixedly embedded in the drill rod, the upper end of the cooling liquid tank is fixedly connected with the liquid inlet pipe, the lower end of the cooling liquid tank is fixedly connected with the liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are sealed through the rubber sealing plug, when the cooling liquid needs to be replaced, the rubber sealing plug on the liquid outlet pipe can be opened, the internal cooling liquid is discharged, then the sealing plug is covered, the rubber sealing plug on the liquid inlet pipe is opened, the internal cooling liquid is poured into the liquid inlet pipe, the replacement is convenient, the heat dissipation effect of the step drill can be improved by arranging the internal cooling liquid, and the step drill is protected to a certain extent; through setting up the holding bits inclined plane in one side of boring the body, and the surface on holding the bits inclined plane has set up a plurality of chip grooves, can clear up the sweeps that mill, avoids the sweeps to pile up and leads to causing the destruction to the ladder brill, avoids leading to the processing hole inner wall coarse.

Description

Alloy inner-cooling stepped drill convenient for replacing inner cooling liquid

Technical Field

The utility model relates to a stepped drill, in particular to an alloy inner-cooling stepped drill convenient for replacing inner cooling liquid, and belongs to the technical field of drill bits.

Background

The drill bit is an important component of a machining cutter, is mainly used for rough machining of holes, and along with the development of the mechanical industry, users put higher requirements on the machining quality, the machining reliability, the machining efficiency, the delivery date of the cutter and the like of products. The stepped drill is widely used for hole machining, is a drill bit consisting of a group of drill steps with different diameters according to certain design requirements, can drill and chamfer a group of holes with different diameters, does not need to replace the drill bits with different diameters when drilling stepped holes with different diameters at one time, and greatly improves the production efficiency.

However, the existing step drill has some problems when in use:

1) most of the existing internal cooling step drills are externally connected with cold water to realize a cooling effect during milling, and the steps are complex during installation and are troublesome to use;

2) the conventional step drill cannot discharge all the scraps generated during milling in time, so that the scraps rotate in the hole to participate in cutting, and the inner wall of the machined hole is rough and a cutter is broken easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide an alloy inner-cooling stepped drill with convenient replacement of inner-cooling liquid.

The utility model realizes the purpose through the following technical scheme: comprises that

The surface of the rod body of the drill rod is fixedly provided with a clamping groove, and the drill rod can be quickly assembled with a machine tool through the clamping groove;

the drill body is fixedly connected to the lower end of the drill rod and is arranged into a step shape;

the drill bit is welded at the lower end of the drill body, and the drill bit can play a role in positioning during milling.

As a still further scheme of the utility model: one side of the drill body is provided with a cutting part, and fine cutting teeth and rough cutting teeth are alternately arranged on the cutting part.

As a still further scheme of the utility model: two adjacent step sections of the drill body are provided with chamfers.

As a still further scheme of the utility model: one side of the drill body opposite to the cutting part is provided with a chip containing inclined plane, and the surface of the chip containing inclined plane is provided with a plurality of chip grooves.

As a still further scheme of the utility model: the inside fixed the inlaying of drilling rod is equipped with the cooling cistern, the upper end rigid coupling in cooling cistern has the feed liquor pipe, and its lower extreme one side rigid coupling has the drain pipe, feed liquor pipe and drain pipe all extend to the outside of drilling rod, and pass through the rubber sealing plug seals.

As a still further scheme of the utility model: and an overflow pipeline is fixedly connected to one side of the lower end of the cooling liquid tank adjacent to the liquid outlet pipe, a one-way valve is arranged in the overflow pipeline, and the overflow pipeline is communicated with an inner cooling hole arranged on the drill body.

As a still further scheme of the utility model: and the surfaces of the drill rod, the drill body and the drill bit are all provided with antirust coatings.

The utility model has the beneficial effects that:

1) according to the utility model, the cooling liquid tank is fixedly embedded in the drill rod, the upper end of the cooling liquid tank is fixedly connected with the liquid inlet pipe, the lower end of the cooling liquid tank is fixedly connected with the liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are sealed by the rubber sealing plug;

2) according to the utility model, the chip containing inclined plane is arranged on one side of the drill body opposite to the cutting part, and the plurality of chip removing grooves are formed in the surface of the chip containing inclined plane, so that milled waste chips can be cleaned, the damage to the stepped drill caused by accumulation of the waste chips is avoided, and the roughness of the inner wall of the processing hole is avoided.

Drawings

FIG. 1 is a schematic view of the inner-cooling step drill of the present invention;

FIG. 2 is a schematic view of the internal structure of the inner-cooling stepped drill according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 1. the drill rod, 2, a clamping groove, 3, a drill body, 4, a drill bit, 5, a cutting part, 6, a cutting part, 7, rough cutting teeth, 8, an inner cooling hole, 9, a chip containing inclined plane, 10, a chip discharging groove, 11, a cooling liquid groove, 12, a liquid inlet pipe, 13, a rubber sealing plug, 14, a liquid outlet pipe, 15, an overflow pipeline, 16 and a one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, an alloy inner cooling step drill with easy replacement of inner cooling liquid includes

The surface of a rod body of the drill rod 1 is fixedly provided with a clamping groove 2, and the drill rod can be quickly assembled with a machine tool by arranging the clamping groove 2;

the drill body 3 is fixedly connected to the lower end of the drill rod 1 and is arranged in a step shape;

the drill bit 4 is welded at the lower end of the drill body 3, and the drill bit 4 can play a role in positioning during milling.

In the embodiment of the utility model, a cooling liquid tank 11 is fixedly embedded inside the drill rod 1, the upper end of the cooling liquid tank 11 is fixedly connected with a liquid inlet pipe 12, one side of the lower end of the cooling liquid tank is fixedly connected with a liquid outlet pipe 14, and the liquid inlet pipe 12 and the liquid outlet pipe 14 both extend to the outer side of the drill rod 1 and are sealed by the rubber sealing plug 13, so that the replacement of the internal cooling liquid is facilitated, and the internal cooling effect is improved.

In the embodiment of the utility model, an overflow pipeline 15 is fixedly connected to one side of the lower end of the cooling liquid tank 11, which is adjacent to the liquid outlet pipe 14, a one-way valve 16 is arranged inside the overflow pipeline 15, and the overflow pipeline 15 is communicated with the internal cooling hole 8 arranged on the drill body 3, so that the stepped drilling is conveniently radiated, and the service life of the stepped drilling is prolonged.

Example two

In the embodiment of the utility model, one side of the drill body 3 is provided with the cutting part 5, and the fine cutting teeth 6 and the rough cutting teeth 7 are crosswise arranged on the cutting part 5, so that the milling efficiency is improved conveniently.

In the embodiment of the utility model, two adjacent stepped sections of the drill body 3 are provided with chamfers, so that the stepped drill body 3 is easier to drill.

In the embodiment of the utility model, a chip containing inclined plane 9 is arranged on one side of the drill body 3 opposite to the cutting part 5, and a plurality of chip removing grooves 10 are formed in the surface of the chip containing inclined plane 9, so that milled waste chips are convenient to clean, and the damage to the stepped drill caused by the accumulation of the waste chips is avoided.

In the embodiment of the utility model, the surfaces of the drill rod 1, the drill body 3 and the drill bit 4 are all provided with antirust coatings, so that the anti-rusting capability of the drill rod is improved conveniently, and the service life of the drill rod is prolonged.

The working principle is as follows: when the inner-cooling stepped drill is used, the inner-cooling stepped drill is stably fixed on a machine tool through the clamping groove 2, then milling can be carried out, fine cutting teeth 6 and coarse cutting teeth 7 are arranged on the cutting part 5 in a crossed manner, so that the milling efficiency is convenient to improve, chamfers are arranged on two adjacent stepped sections of the drill body 3, the stepped drill body 3 is easier to drill, waste chips generated during milling can be quickly discharged through the chip discharge grooves 10, the stepped drill is prevented from being damaged due to accumulation of the waste chips, the inner wall of a machining hole is prevented from being rough, during milling, inner cooling liquid in the cooling liquid groove 11 passes through the one-way valve 16 under the action of centrifugal force to enter the overflow pipeline 15 and flows out through the inner cooling hole 8, the heat dissipation of the stepped drill is convenient, when the cooling liquid needs to be replaced, the rubber sealing plug 13 on the liquid outlet pipe 14 can be opened to discharge the inner cooling liquid, then the rubber sealing plug 13 is covered, the rubber sealing plug 13 on the liquid inlet pipe 12 is opened, and the inner cooling liquid is poured into the liquid inlet pipe, so that the replacement is convenient.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An alloy inner-cooling stepped drill convenient for replacing inner cooling liquid is characterized by comprising

The surface of a rod body of the drill rod (1) is fixedly provided with a clamping groove (2), and the drill rod can be quickly assembled with a machine tool by arranging the clamping groove (2);

the drill body (3) is fixedly connected to the lower end of the drill rod (1) and is arranged in a step shape;

the drill bit (4) is welded at the lower end of the drill body (3), and the drill bit (4) can play a role in positioning during milling;

one side of the drill body (3) is provided with a cutting part (5), and fine cutting teeth (6) and rough cutting teeth (7) are alternately arranged on the cutting part (5).

2. The alloy inner cooling stepped drill convenient for replacing the inner cooling liquid as claimed in claim 1, is characterized in that: two adjacent step sections of the drill body (3) are provided with chamfers.

3. The alloy inner cooling stepped drill convenient for replacing the inner cooling liquid as claimed in claim 1, is characterized in that: one side of the drill body (3) opposite to the cutting part (5) is provided with a chip containing inclined plane (9), and the surface of the chip containing inclined plane (9) is provided with a plurality of chip discharge grooves (10).

4. The alloy inner cooling stepped drill convenient for replacing the inner cooling liquid as claimed in claim 1, is characterized in that: the inside of drilling rod (1) is fixed to be inlayed and is equipped with cooling cistern (11), the upper end rigid coupling of cooling cistern (11) has feed liquor pipe (12), and its lower extreme one side rigid coupling has drain pipe (14), feed liquor pipe (12) and drain pipe (14) all extend to the outside of drilling rod (1).

5. The alloy inner cooling stepped drill convenient for replacing the inner cooling liquid as claimed in claim 4, wherein: the lower end of the cooling liquid tank (11) is fixedly connected with one side adjacent to the liquid outlet pipe (14) to form an overflow pipeline (15), a one-way valve (16) is arranged inside the overflow pipeline (15), and the overflow pipeline (15) is communicated with an internal cooling hole (8) formed in the drill body (3).

6. The alloy inner cooling stepped drill convenient for replacing the inner cooling liquid as claimed in claim 1, is characterized in that: and the surfaces of the drill rod (1), the drill body (3) and the drill bit (4) are all provided with antirust coatings.