CN113967754A

CN113967754A - Punching drill for brazing process

Info

Publication number: CN113967754A
Application number: CN202111465173.7A
Authority: CN
Inventors: 邱宏波
Original assignee: Jiangsu Jinyuansu Superhard Material Co ltd
Current assignee: Jiangsu Jinyuansu Superhard Material Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-01-25

Abstract

The invention discloses a brazing process perforating drill, which comprises: a drill body; the cutter head is arranged at one end of the drill body; the outer wall of the drill body is provided with a plurality of heat dissipation holes and a first grinding part which is arranged circumferentially, and the inner wall of the drill body is provided with a second grinding part; the edge of the end part of the drill body is provided with a plurality of positioning grooves, and the tool bit is matched with the positioning grooves; one end of the cutter head is provided with a limiting block, and chip grooves are formed in the outer wall and the inner wall. The grinding parts are arranged on the inner wall and the outer wall of the drill body, and can further grind the inner wall of the hole to ensure that the side wall of the hole is smooth, reduce friction and improve drilling efficiency and drilling quality; the chip grooves on the tool bit are beneficial to smooth chip discharge, the frictional resistance in drilling is reduced, and the drilling efficiency and the drilling quality are improved.

Description

Punching drill for brazing process

Technical Field

The invention belongs to the technical field of metal processing tools, and particularly relates to a punching drill for a brazing process.

Background

The perforating drill is a drilling machining tool and is widely applied to drilling of hard and brittle materials such as concrete, refractory materials, stone materials, ceramics and the like. The punching drill comprises a drill body and a tool bit, the excellent punching performance of the punching drill is determined by a majority of users, and in order to further improve the drilling performance of the punching drill and facilitate the processing of holes with high requirements, a novel punching drill is provided.

Disclosure of Invention

In view of this, the technical problem to be solved by the present invention is to provide a drilling drill for a brazing process, which solves the problem of general drilling performance of the drilling drill in the prior art.

In order to solve the technical problem, the invention discloses a punching drill for a brazing process, which comprises: a drill body; the cutter head is arranged at one end of the drill body; the drill body is in a round tube shape, the other end of the drill body is a connector, and a threaded hole is formed in the connector; the outer wall of the drill body is provided with a plurality of heat dissipation holes and a first grinding part which is arranged circumferentially, and the inner wall of the drill body is provided with a second grinding part; the edge of the end part of the drill body is provided with a plurality of positioning grooves, and the tool bit is matched with the positioning grooves; one end of the cutter head is provided with a limiting block, and chip grooves are formed in the outer wall and the inner wall.

Furthermore, two axisymmetric clamping parts are arranged outside the connecting head.

Further, the outer wall of the drill body is provided with four first grinding parts which are arranged at intervals.

Further, the first grinding part is formed by arranging a plurality of grinding convex blocks at intervals.

Further, the orthographic projection of the grinding lug is circular.

Further, the heat dissipation holes are distributed among the first grinding parts at intervals.

Further, the two second grinding parts are distributed at an interval of 180 degrees and are arranged at the port of the drill body.

Furthermore, the outer wall of the tool bit is provided with two chip grooves, and the inner wall of the tool bit is provided with one chip groove.

Compared with the prior art, the application can obtain the following technical effects:

the grinding parts are arranged on the inner wall and the outer wall of the drill body, and can further grind the inner wall of the hole to ensure that the side wall of the hole is smooth, reduce friction and improve drilling efficiency and drilling quality; the tool bit adopts the welding of brazing process high accuracy, and the tool bit makes both connection accuracy higher through stopper and constant head tank cooperation with boring the body to can promote the precision of drilling, the chip groove on the tool bit is favorable to the smooth discharge of piece, reduces the frictional resistance in the drilling, promotes drilling efficiency and drilling quality.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a hole drill according to one embodiment of the present invention;

FIG. 2 is a schematic view of a drill body and a tool tip according to an embodiment of the present invention.

Reference symbols of the drawings

The drill comprises a drill body 1, a tool bit 2, a connector 3, a threaded hole 4, a heat dissipation hole 5, a first grinding part 6, a second grinding part 7, a positioning groove 8, a limiting block 9, a chip groove 10, a clamping part 11 and a grinding bump 12.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a hole drilling machine according to an embodiment of the present invention; FIG. 2 is a schematic view of a drill body and a tool tip according to an embodiment of the present invention. A brazing process auger comprising: a drill body 1; a cutter head 2 arranged at one end of the drill body 1; the drill body 1 is in a round tube shape, the other end of the drill body 1 is a connector 3, and a threaded hole 4 is formed in the connector 3; the outer wall of the drill body 1 is provided with a plurality of heat dissipation holes 5 and first grinding parts 6 which are arranged circumferentially, and the inner wall is provided with a second grinding part 7; the edge of the end part of the drill body 1 is provided with four positioning grooves 8, and the tool bit 2 is matched with the positioning grooves 8; one end of the tool bit 2 is provided with a limiting block 9, and the outer wall and the inner wall are provided with chip grooves 10.

Two axisymmetric clamping parts 11 are arranged outside the connector 3; the outer wall of the drill body 1 is provided with four first grinding parts 6 which are arranged at intervals; the first grinding part 6 is formed by arranging a plurality of grinding convex blocks 12 at intervals, and the orthographic projection of the grinding convex blocks 12 is circular; the heat dissipation holes 5 are distributed among the first grinding parts 6 at intervals; the two second grinding parts 7 are distributed at intervals of 180 degrees and are arranged at the port of the drill body 1, and the second grinding parts are integral rectangular grinding lugs; the outer wall of the tool bit 2 is provided with two chip grooves 10, and the inner wall is provided with one chip groove 10.

The drill body 1 and the tool bit 2 are welded by adopting a brazing process, and the brazing welding has the advantages that: the brazing temperature is lower than that of the base metal, and the influence on the structure performance of the base metal is small; the stress and the deformation are small, and the method is suitable for the connection of high-precision and complex parts or structures; the surface quality of the welding position is good, and the appearance is beautiful and free of welding spots.

The inner wall and the outer wall of the drill body 1 are provided with the grinding parts, and the grinding parts can further grind the inner wall of the hole to ensure that the side wall of the hole is smooth, reduce friction and improve drilling efficiency and drilling quality; tool bit 2 adopts the welding of brazing process high accuracy, and tool bit 2 makes both connection accuracy higher with boring body 1 through stopper 9 and the cooperation of constant head tank 8 to can promote the precision of drilling, chip groove 10 on the tool bit 2 is favorable to the piece to discharge smoothly, reduces the frictional resistance in the drilling, promotes drilling efficiency and drilling quality.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A brazing process auger comprising: a drill body; the cutter head is arranged at one end of the drill body;

the drill is characterized in that the drill body is in a round tube shape, the other end of the drill body is a connector, and a threaded hole is formed in the connector; the outer wall of the drill body is provided with a plurality of heat dissipation holes and a first grinding part which is arranged circumferentially, and the inner wall of the drill body is provided with a second grinding part; the edge of the end part of the drill body is provided with a plurality of positioning grooves, and the tool bit is matched with the positioning grooves; one end of the cutter head is provided with a limiting block, and chip grooves are formed in the outer wall and the inner wall.

2. The brazing process hole drill as claimed in claim 1, wherein the connector is externally provided with two axisymmetric clamping portions.

3. The brazing process hole drill as claimed in claim 1, wherein the outer wall of the drill body is provided with four first grinding portions arranged at intervals.

4. The brazing process hole drill of claim 1, wherein the first grinding portion is formed by a plurality of grinding protrusions arranged at intervals.

5. The brazing process hole drill of claim 4, wherein the orthographic projection of the grinding lug is circular.

6. The brazing process hole drill as claimed in claim 1, wherein the heat dissipation holes are spaced between the first grinding portions.

7. The brazing process hole drill of claim 1, wherein two of the second grinding portions are distributed 180 ° apart and are disposed at the drill body port.

8. The brazing process hole drill as recited in claim 1, wherein said bit has two said flutes in an outer wall thereof and one said flute in an inner wall thereof.