CN217529333U

CN217529333U - Alloy drill bit with inner cooling structure

Info

Publication number: CN217529333U
Application number: CN202123288245.3U
Authority: CN
Inventors: 梅永刚; 朱锋伟; 刘亚运
Original assignee: Changzhou Frante Tools Co ltd
Current assignee: Changzhou Frante Tools Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-10-04
Anticipated expiration: 2031-12-25

Abstract

The utility model discloses an alloy drill bit with interior cold junction constructs, including drilling rod, drill bit and interior cold junction constructs. The beneficial effects of the utility model are that: the utility model discloses a fixedly connected with chip blocking plate between drilling rod and drill bit, and chip blocking plate's both sides are provided with the inclined plane, can block the sweeps to splash to the junction of drill bit and lathe when milling, avoid later stage dismouting difficulty, and through setting up the chip groove, can clear up the sweeps that mill the production, avoid influencing drilling precision; the utility model discloses the drilling rod is through setting up interior cold machine and constructing, when milling, through the interior cold liquid of injection in the downthehole inside cold groove of feed liquor, interior cold liquid can flow through each play liquid hole under the centrifugal force that the drill bit rotated the production to take away the heat on drilling rod and the drill bit, play fine radiating effect, moreover at the inside scarf joint in feed liquor hole there is the seal cover, can seal interior cold machine and construct, avoid the sweeps to pile up and cause the jam downthehole at the feed liquor.

Description

Alloy drill bit with inner cooling structure

Technical Field

The utility model relates to an alloy drill bit specifically is an alloy drill bit with interior cold junction constructs belongs to drill bit technical field.

Background

With the continuous development of the numerical control technology in China in recent years, the application of the numerical control technology not only brings revolutionary changes to the traditional manufacturing industry and enables the manufacturing industry to become an industrialized symbol, but also plays an increasingly important role in the development of some important industries (IT, automobiles, light industry, medical treatment and the like) of the county citizens along with the continuous development of the numerical control technology and the expansion of the application field, and because the digitalization of equipment required by the industries is a great trend of modern development. As is well known, a numerically controlled lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. The lathe can be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like, and the drill bit is commonly used in a numerical control lathe.

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

1) When the drill bit is used, a large amount of heat can be generated, most of the existing drill bits are provided with heat dissipation holes to dissipate heat of the drill bit, the heat dissipation effect is not obvious, the drill bit is easy to damage, the hardness of the drill bit is poor, the drill bit is easy to wear and break during use, and the use cost is increased;

2) Current drill bit is milling, can't in time clear up the sweeps, and the sweeps that produce moreover can spatter the junction of lathe and drill bit, leads to the later stage to the drill bit dismouting difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an alloy drill bit with interior cold junction structure for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: comprises that

The upper end of the drill rod is fixedly welded with a connecting seat, and the upper end of the connecting seat is fixedly welded with an installing head;

the drill bit is welded at the lower end of the drill rod, drill edges are arranged on the periphery of the drill bit, a hard coating is arranged on the outer side of each drill edge, and a grinding cambered surface is arranged on the upper side of each drill edge;

and the inner cooling mechanism is arranged inside the drill rod and the drill bit, and the drill rod and the drill bit are conveniently cooled by the inner cooling mechanism.

As a further aspect of the present invention: a clamping groove is formed in the side wall of one side of the connecting seat.

As a further aspect of the present invention: a chip blocking plate is fixedly connected between the drill rod and the drill bit, and inclined planes are arranged on two sides of the chip blocking plate.

As the utility model discloses further scheme again: the drill rod is communicated with the inside of the drill bit, a plurality of liquid separating holes are formed in the two sides of the inner cooling groove in a communicated mode, and the end portion of each liquid separating hole is communicated with a liquid outlet hole formed in the drill bit in a penetrating mode.

As a further aspect of the present invention: and a sealing sleeve is embedded in the liquid inlet hole.

As a further aspect of the present invention: the surface winding of drill bit is provided with the chip groove.

As the utility model discloses further scheme again: the drill rod and the drill bit are both made of alloy materials.

The utility model has the advantages that:

1) The utility model discloses a fixedly connected with chip blocking plate between drilling rod and drill bit, and chip blocking plate's both sides are provided with the inclined plane, can block the sweeps to splash to the junction of drill bit and lathe when milling, avoid later stage dismouting difficulty, and through setting up the chip groove, can clear up the sweeps that mill the production, avoid influencing drilling precision;

2) The utility model discloses the drilling rod is through setting up interior cold machine and constructing, when milling, through the interior cold liquid of injection in the downthehole inside cold groove of feed liquor, interior cold liquid can flow through each play liquid hole under the centrifugal force that the drill bit rotated the production to take away the heat on drilling rod and the drill bit, play fine radiating effect, moreover at the inside scarf joint in feed liquor hole there is the seal cover, can seal interior cold machine and construct, avoid the sweeps to pile up and cause the jam downthehole at the feed liquor.

Drawings

FIG. 1 is a schematic view of the alloy drill according to the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the alloy drill of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. the drilling rod, 2, a chip blocking plate, 3, a connecting seat, 4, a clamping groove, 5, an installing head, 6, a liquid inlet hole, 7, a sealing sleeve, 8, a drill bit, 9, a liquid outlet hole, 10, a chip removal groove, 11, an inner cooling groove, 12, a liquid separating hole, 13, a drill edge, 14 and a ground arc surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example one

Referring to FIGS. 1 to 3, an alloy drill with an internal cooling structure includes

The upper end of the drill rod 1 is fixedly welded with a connecting seat 3, and the upper end of the connecting seat 3 is fixedly welded with an installation head 5;

the drill bit 8 is welded at the lower end of the drill rod 1, drill edges 13 are arranged on the periphery of the drill bit 8, a hard coating is arranged on the outer sides of the drill edges 13, and a flat grinding arc surface 14 is arranged on the upper side of each drill edge 13;

and the inner cooling mechanism is arranged inside the drill rod 1 and the drill bit 8, and the drill rod 1 and the drill bit 8 are conveniently cooled by the inner cooling mechanism.

The embodiment of the utility model provides an in, interior cold mechanism is by running through the setting and is in feed liquor hole 6 on the body of drilling rod 1 and interior cold groove 11 that is linked together with feed liquor hole 6 constitute, the downside intercommunication of feed liquor hole 6 is provided with interior cold groove 11, and interior cold groove 11 sets up the inside of drilling rod 1 and drill bit 8, a plurality of minute liquid holes 12 that the both sides intercommunication of interior cold groove 11 was provided with, every the tip of minute liquid hole 12 all is linked together with running through the play liquid hole 9 that sets up on drill bit 8, when milling, injects interior cold liquid into through feed liquor hole 6 in to interior cold groove 11, and interior cold liquid can flow out through each play liquid hole 9 under the centrifugal force that drill bit 8 rotated the production to take away the heat on drilling rod 1 and the drill bit 8, play fine radiating effect.

The embodiment of the utility model provides an in, the inside scarf joint in feed liquor hole 6 has seal cover 7, can seal interior cold body, avoids the sweeps to pile up and causes the jam in feed liquor hole 6.

Example two

Referring to FIGS. 1 to 3, an alloy drill with an inner cooling structure includes

The upper end of the drill rod 1 is fixedly welded with a connecting seat 3, and the upper end of the connecting seat 3 is fixedly welded with an installing head 5;

the drill bit 8 is welded at the lower end of the drill rod 1, drill edges 13 are arranged on the periphery of the drill bit 8, a hard coating is arranged on the outer sides of the drill edges 13, and a flat grinding cambered surface 14 is arranged on the upper sides of the drill edges 13;

The embodiment of the utility model provides an in, inside centre gripping groove 4 of having seted up of one side lateral wall of connecting seat 3, through setting up centre gripping groove 4, can improve the fastness that this drill bit and lathe are connected, simple to operate.

The embodiment of the utility model provides an in, fixedly connected with keeps off bits board 2 between drilling rod 1 and the drill bit 8, and keeps off the both sides of bits board 2 and be provided with the inclined plane, can block that the sweeps splashes down the junction of drill bit and lathe when milling, avoids later stage dismouting difficulty.

The embodiment of the utility model provides an in, the surface winding of drill bit 8 is provided with chip groove 10, can clear up the sweeps that mills the production, avoids influencing drilling precision.

The embodiment of the utility model provides an in, drilling rod 1 and drill bit 8 all adopt alloy material to make, can improve the life of this drill bit.

The working principle is as follows: when using this alloy drill bit, at first be connected drilling rod 1 with the lathe through connecting seat 3 and centre gripping groove 4's mating reaction, then can mill the work, cold liquid in injecting into through feed liquor hole 6 to interior cold groove 11 when milling, interior cold liquid can flow out through each play liquid hole 9 under the centrifugal force that 8 rotation of drill bit produced, thereby take away the heat on drilling rod 1 and the drill bit 8, play fine radiating effect, mill the sweeps that produce and can in time clear up through the chip groove 10 that sets up, avoid the sweeps to pile up at the hole inner wall, influence drilling accuracy, fender bits board 2 through setting up, can be when milling, it spatters the junction of drilling rod 1 and lathe to block the sweeps, avoid later stage dismouting difficulty, and drilling rod 1 and drill bit 8 all adopt alloy material to make, can improve the use of this drill bit.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. An alloy drill bit with an internal cooling structure is characterized by comprising

The upper end of the drill rod (1) is fixedly welded with a connecting seat (3), and the upper end of the connecting seat (3) is fixedly welded with an installing head (5);

the drill bit (8) is welded at the lower end of the drill rod (1), drill edges (13) are arranged on the periphery of the drill bit (8), a hard coating is arranged on the outer sides of the drill edges (13), and a grinding arc surface (14) is arranged on the upper side of each drill edge (13);

and the inner cooling mechanism is arranged inside the drill rod (1) and the drill bit (8), and the drill rod (1) and the drill bit (8) are conveniently cooled by the inner cooling mechanism.

2. The alloy bit with internal cooling structure of claim 1, wherein: and a clamping groove (4) is formed in the side wall of one side of the connecting seat (3).

3. The alloy bit with the internal cooling structure as set forth in claim 1, wherein: a chip blocking plate (2) is fixedly connected between the drill rod (1) and the drill bit (8), and inclined planes are arranged on two sides of the chip blocking plate (2).

4. The alloy bit with internal cooling structure of claim 1, wherein: the inner cooling mechanism is composed of a liquid inlet hole (6) penetrating through the rod body of the drill rod (1) and an inner cooling groove (11) communicated with the liquid inlet hole (6), the lower side of the liquid inlet hole (6) is communicated with an inner cooling groove (11), the inner cooling groove (11) is arranged inside the drill rod (1) and the drill bit (8), the two sides of the inner cooling groove (11) are communicated with a plurality of liquid distributing holes (12), and the end part of each liquid distributing hole (12) is communicated with a liquid outlet hole (9) penetrating through the drill bit (8).

5. The alloy bit with the internal cooling structure of claim 4, wherein: and a sealing sleeve (7) is embedded in the liquid inlet hole (6).

6. The alloy bit with the internal cooling structure as set forth in claim 1, wherein: the surface of the drill bit (8) is wound with a chip groove (10).

7. The alloy bit with internal cooling structure of claim 1, wherein: the drill rod (1) and the drill bit (8) are both made of alloy materials.