CN217529323U

CN217529323U - Deep hole bores convenient to quick replacement drill bit

Info

Publication number: CN217529323U
Application number: CN202123377458.3U
Authority: CN
Inventors: 吴健; 匡亚兰
Original assignee: Changzhou Yizhinuo Tools Co ltd
Current assignee: Changzhou Yizhinuo Tools Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-10-04
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a deep hole bores convenient to quick replacement drill bit, including drilling string, chip groove, hole for water spraying, drill bit, first fastening screw, limiting plate, constant head tank, base, butt joint groove, reference column, second fastening screw, spliced pole and water injection post. The utility model has the advantages that: be provided with heliciform chip groove on the lateral wall of drilling string, be provided with the hole for water spraying on the lateral wall of chip groove, the inside of drilling string is provided with the cavity, the hole for water spraying link up with the cavity, spray coolant liquid through the hole for water spraying, flow through the coolant liquid, and then realize the interior cooling of drilling string, to its rapid cooling, the top of drilling string is connected with the drill bit, the bottom of drill bit is provided with the constant head tank, the top of drilling string is the fixed limiting plate of convex type, prevent to produce when milling because tangential force causes drill bit and drilling string before sliding, the center department of drill bit is provided with the through-hole, the top center department of drilling string is provided with the screw, after the drill bit damages, the staff can be to its quick replacement.

Description

Deep hole bores convenient to quick replacement drill bit

Technical Field

The utility model relates to a deep hole bores specifically to a deep hole bores convenient to quick replacement drill bit belongs to deep hole bores technical field.

Background

The deep hole drill is a drill bit specially used for machining deep holes and can be divided into an outer chip removal drill and an inner chip removal drill, the largest defect of the deep drill is that heat dissipation and chip removal are difficult, the drill bit is specially used for machining deep holes, holes with the ratio of the hole depth to the hole diameter being more than 6 are usually called deep holes in machining, heat dissipation and chip removal are difficult in deep hole drilling, and due to the fact that a drill rod is long and thin and poor in rigidity, bending and vibration are prone to generation.

Because deep hole bores is in a large number of applications in the BTA to the work piece, consequently, then need a deep hole drill, however current deep hole drill mostly has various problems, one of them, the long and thin rigidity of current deep hole drill cutter arbor is poor, the difficult row of cutting chips of cooling difficulty, two of them, current deep hole drill drilling rod is long and thin and the rigidity is poor, easily produce bending and vibration, and easily damage, and current deep hole drill adopts a body coupling structure mostly, lead to after deep hole drill damages, the staff can't be to its quick replacement, and then cause unnecessary economic loss.

Disclosure of Invention

The utility model aims at providing a deep hole bores convenient to quick replacement drill bit just for the solution problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a deep hole drill facilitating quick replacement of a drill bit comprises a drill string; the drill column forms a main body structure of the deep hole drill, a base is fixedly welded at the bottom of the drill column, a connecting column is connected at the bottom of the base, and a positioning column is fixedly welded at the top of the connecting column.

As a further aspect of the present invention: the drill string is characterized in that a spiral chip removing groove is formed in the side wall of the drill string, a water spraying hole is formed in the side wall of the chip removing groove, a cavity is formed in the drill string, and the water spraying hole is communicated with the cavity.

As a further aspect of the present invention: the top of the drill stem is connected with a drill bit, the bottom of the drill bit is provided with a positioning groove, and the top of the drill stem is fixed with a limiting plate in a protruding mode.

As a further aspect of the present invention: the center of the drill bit is provided with a through hole, the center of the top of the drill column is provided with a screw hole, a first fastening screw is arranged in the through hole, and the first fastening screw and the screw hole are screwed and locked.

As a further aspect of the present invention: the bottom of base is provided with the butt joint groove, and butt joint groove and reference column be cross column structure, and be provided with the locking screw on the lateral wall of reference column, revolve to twist on the lateral wall of base and be connected with the second fastening screw.

As a further aspect of the present invention: the side wall of the connecting column is provided with a water injection column, the side wall of the water injection column is provided with a screwing thread, and the water injection column is nested with a rubber gasket.

The utility model has the advantages that: the deep hole drill is reasonable in design, a spiral chip removing groove is formed in the side wall of a drill column, a water spraying hole is formed in the side wall of the chip removing groove, a cavity is formed in the drill column, the water spraying hole is communicated with the cavity, cooling liquid is sprayed through the water spraying hole, flowing of the cooling liquid is realized, inner cooling of the drill column is realized, rapid cooling is realized, a drill bit is connected to the top of the drill column, a positioning groove is formed in the bottom of the drill column, a limiting plate is fixed to the top of the drill column in a protruding mode, sliding between the drill bit and the drill column due to tangential force during milling is prevented, a through hole is formed in the center of the drill bit, a screw hole is formed in the center of the top of the drill column, a first fastening screw is arranged in the through hole and screwed and locked with the screw hole, after the drill bit is damaged, a worker can rapidly replace the drill column, a butt joint groove is formed in the bottom of a base and the drill column, a cross-shaped structure is formed in the butt joint groove and the side wall of the positioning column, a locking screw hole is formed in the side wall of the base, a second fastening screw is screwed and connected with a connecting column, and a connecting post which a connecting post is arranged on the side wall of the water injection column, and a connecting post, and a connecting pipe is connected with a rapid screwing connection of the water injection post in a rapid screwing connection with a rapid screwing connection through rubber gasket.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the drill string and the drill bit of the present invention;

FIG. 3 is a schematic view of the bottom structure of the drill of the present invention;

fig. 4 is the schematic view of the base and the connecting column split structure of the present invention.

In the figure: 1. the drill string, 2, chip groove, 3, hole for water spraying, 4, drill bit, 5, first fastening screw, 6, limiting plate, 7, constant head tank, 8, base, 9, butt joint groove, 10, reference column, 11, second fastening screw, 12, spliced pole and 13, water injection post.

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 fig. 1 to 4, a deep hole drill facilitating quick replacement of a drill bit includes a drill string 1; the drill string 1 forms a main body structure of the deep hole drill, a base 8 is fixedly welded at the bottom of the drill string 1, a connecting column 12 is connected at the bottom of the base 8, and a positioning column 10 is fixedly welded at the top of the connecting column 12.

Further, in the embodiment of the utility model, be provided with heliciform chip groove 2 on the lateral wall of drilling string 1, be provided with hole for water spraying 3 on the lateral wall of chip groove 2, the inside of drilling string 1 is provided with the cavity, and hole for water spraying 3 link up with the cavity, through hole for water spraying 3 injection coolant liquid, through the flow of coolant liquid, and then realize the interior cold of drilling string 1, to its rapid cooling.

Further, in the embodiment of the present invention, the top of the drill string 1 is connected with the drill bit 4, the bottom of the drill bit 4 is provided with the positioning slot 7, the top of the drill string 1 is fixed with the positioning board 6 in a protruding manner, so as to prevent the drill bit 4 from sliding with the drill string 1 due to the tangential force during milling.

Further, in the embodiment of the present invention, a through hole is provided at the center of the drill bit 4, a screw hole is provided at the center of the top of the drill string 1, a first fastening screw 5 is provided in the through hole, the first fastening screw 5 is screwed and locked with the screw hole, and after the drill bit 4 is damaged, a worker can quickly replace the drill bit.

Example two

Further, in the embodiment of the present invention, the bottom of the base 8 is provided with a docking slot 9, the docking slot 9 and the positioning column 10 are both cross-shaped structures, and the side wall of the positioning column 10 is provided with a locking screw hole, the side wall of the base 8 is screwed and connected with a second fastening screw 11, and the docking slot 9 is docked with the positioning column 10, so that the drill string 1 can be quickly and limitedly docked with the connecting column 12, and the two are quickly fixed by the second fastening screw 11.

Further, in the embodiment of the present invention, the side wall of the connection column 12 is provided with a water injection column 13, the side wall of the water injection column 13 is provided with a screw thread, and a rubber gasket is nested on the water injection column 13, so that the connection column 12 can be quickly connected with an external water pipe through the water injection column 13, and the sealing performance of the connection is ensured.

The working principle is as follows: when using this deep hole to bore, earlier with butt joint groove 9 and reference column 10, and then twist the locking fast with drill string 1 and spliced pole 12 through second fastening screw 11 with its two, then be connected spliced pole 12 and external fixed lathe fixedly, twist the locking with water injection post 13 and external water pipe soon again, when milling, the coolant liquid flows into the inside cavity of drill string 1 through water injection post 13, and spray the coolant liquid through hole for water spraying 3, realize the interior cold to drill string 1, after drill bit 4 damages, the staff accessible is twisted first fastening screw 5 soon with its quick replacement can.

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 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. A deep hole drill facilitating quick change of the drill bit, comprising a drill string (1); the method is characterized in that: the drill string (1) forms a main body structure of the deep hole drill, a base (8) is fixedly welded at the bottom of the drill string (1), a connecting column (12) is connected at the bottom of the base (8), and a positioning column (10) is fixedly welded at the top of the connecting column (12).

2. The gun drill facilitating quick replacement of a drill bit according to claim 1, wherein: the drill string is characterized in that a spiral chip removal groove (2) is formed in the side wall of the drill string (1), a water spray hole (3) is formed in the side wall of the chip removal groove (2), a cavity is formed in the drill string (1), and the water spray hole (3) is communicated with the cavity.

3. The gun drill facilitating quick replacement of a drill bit according to claim 1, wherein: the drill bit (4) is connected to the top of the drill string (1), a positioning groove (7) is formed in the bottom of the drill bit (4), and a limiting plate (6) is fixed to the top of the drill string (1) in a protruding mode.

4. A deep hole drill facilitating quick change of a drill bit according to claim 1 or 3, wherein: the drill bit is characterized in that a through hole is formed in the center of the drill bit (4), a screw hole is formed in the center of the top of the drill string (1), a first fastening screw (5) is arranged in the through hole, and the first fastening screw (5) is screwed and locked with the screw hole.

5. The gun drill facilitating quick replacement of a drill bit according to claim 1, wherein: the bottom of base (8) is provided with butt joint groove (9), and butt joint groove (9) and reference column (10) are cross column structure, and are provided with the locking screw on the lateral wall of reference column (10), revolve to twist on the lateral wall of base (8) and are connected with second fastening screw (11).

6. The gun drill facilitating quick replacement of a drill bit according to claim 1, wherein: the water injection device is characterized in that a water injection column (13) is arranged on the side wall of the connecting column (12), a screwing thread is arranged on the side wall of the water injection column (13), and a rubber gasket is nested on the water injection column (13).