CN215969463U

CN215969463U - Wear-resistant hard alloy glass triangular drill

Info

Publication number: CN215969463U
Application number: CN202121366647.8U
Authority: CN
Inventors: 仇胜
Original assignee: YUEQING NANFANG CEMENTED CARBIDE CO Ltd
Current assignee: Zhejiang Liyu Precision Manufacturing Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-03-08
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a wear-resistant cemented carbide glass triangular drill which comprises a drill handle, wherein a threaded drill handle is fixedly arranged at the lower end of the drill handle, a clamping device is fixedly arranged at the lower end of the threaded drill handle, a drill bit is fixedly arranged at the lower end of the clamping device, the clamping device comprises an upper clamping piece and a lower clamping piece, the upper clamping piece is in sliding clamping connection with the lower clamping piece, and the drill bit is fixedly connected with the lower clamping piece. When the drill bit is used, the drill bit is connected with the drilling machine through the connecting groove, so that the stability is improved, vibration generated during the use of the drill bit is reduced, and the use risk is reduced.

Description

Wear-resistant hard alloy glass triangular drill

Technical Field

The utility model relates to a drill bit, in particular to a wear-resistant cemented carbide glass triangular drill.

Background

The drill bit is a tool for drilling through holes or blind holes in solid materials and reaming the existing holes, and is extremely large in production and life. When the drill bit works and is subjected to rotary resistance and axial pressure, the drill bit can generate rotary sliding and axial sliding, and when a drilling machine and an electric drill use a three-jaw clamp for drilling, a round-handle drill bit is mostly adopted.

However, when the drill bit is used, the situation that the drill bit is worn and needs to be replaced often occurs, but the whole drill bit is often needed to be replaced, so that the loss of the drill bit is small, and certain waste in resources is caused. Accordingly, one skilled in the art provides a wear-resistant cemented carbide glass triangular drill to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wear-resistant cemented carbide glass triangular drill to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a wear-resistant hard alloy glass triangular drill comprises a drill handle, wherein a threaded drill handle is fixedly arranged at the lower end of the drill handle, a clamping device is fixedly arranged at the lower end of the threaded drill handle, and the clamping device comprises an upper clamping piece and a lower clamping piece;

the upper clamping piece comprises a clamping block, a movable clamping piece, a clamping groove, a clamping inner rod and a limiting frame;

a clamping inner rod is fixedly arranged in the middle of the lower end of the clamping block, and a plurality of clamping grooves are formed in the periphery of the clamping block and the movable clamping piece;

the lower clamping piece comprises a fixed clamping block, a clamping inner groove, a first limiting plate, an adjustable inner ring, a built-in clamping piece, a second limiting plate and a limiting groove;

the clamping inner groove is formed in the fixed clamping block, the built-in clamping piece is arranged at the lower end of the clamping inner groove, the first limiting plates are fixedly installed on the inner side of the fixed clamping block, the second limiting plates are fixedly installed on the inner side of the built-in clamping piece, and the second limiting plates and the first limiting plates are arranged corresponding to the clamping groove.

As a further scheme of the utility model: the lower end of the clamping device is fixedly provided with a drill bit, the upper clamping piece and the lower clamping piece are in sliding clamping connection, and the drill bit is fixedly connected with the lower clamping piece.

As a still further scheme of the utility model: the outer cover of the inner clamping rod is provided with a movable clamping piece, and the lower end of the inner clamping rod is fixedly provided with a limiting frame.

As a still further scheme of the utility model: the adjustable inner ring is fixedly arranged at the upper end of the built-in clamping piece and is movably connected with the clamping inner groove.

As a still further scheme of the utility model: and a limiting groove is fixedly formed in the inner groove bottom of the fixed clamping block and corresponds to the limiting frame.

As a still further scheme of the utility model: the upper end of the drill handle is fixedly provided with a connecting piece, the periphery of the connecting piece is provided with a plurality of prismatic joint surfaces, and the prismatic joint surfaces are provided with a plurality of connecting grooves.

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

1. when the adjustable inner ring is used, the movable clamping piece is rotated to enable the clamping groove in the clamping block to be in sliding connection with the first limiting plate and the second limiting plate, and the limiting frame corresponds to the limiting groove, so that the adjustable inner ring is rotated to enable the built-in clamping piece and the movable clamping piece to be staggered with the upper end fixing clamping block, the fixing of the upper clamping piece and the lower clamping piece is completed, the drill bit is convenient to frequently replace and use, and the resource consumption is reduced.

2. When the drill bit is used, the drill bit is connected with the drilling machine through the connecting groove, so that the stability is improved, vibration generated during the use of the drill bit is reduced, and the use risk is reduced.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of an upper card connector in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of the lower clip in embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1. a drill shank; 2. a threaded drill shank; 3. a clamping device; 31. a clamping piece is arranged on the upper part; 311. a clamping block; 312. a movable fastener; 313. a clamping groove; 314. clamping the inner rod; 315. a limiting frame; 32. a clamping piece is arranged below; 321. fixing the clamping block; 322. clamping the inner groove; 323. a first limiting plate; 324. an adjustable inner ring; 325. a built-in clamping piece; 326. a second limiting plate; 327. a limiting groove; 4. a drill bit; 5. a connecting member; 51. a prismatic junction; 52. and connecting the grooves.

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 1

Referring to fig. 1 to 3, in the embodiment of the utility model, a wear-resistant cemented carbide glass triangular drill comprises a drill handle 1, wherein a threaded drill handle 2 is fixedly installed at the lower end of the drill handle 1, a clamping device 3 is fixedly installed at the lower end of the threaded drill handle 2, a drill bit 4 is fixedly installed at the lower end of the clamping device 3, the clamping device 3 comprises an upper clamping piece 31 and a lower clamping piece 32, the upper clamping piece 31 is in sliding clamping connection with the lower clamping piece 32, and the drill bit 4 is fixedly connected with the lower clamping piece 32;

the upper clamping piece 31 comprises a clamping block 311, a movable clamping piece 312, a clamping groove 313, a clamping inner rod 314 and a limiting frame 315;

a clamping inner rod 314 is fixedly arranged in the middle of the lower end of the clamping block 311, a movable clamping piece 312 is sleeved outside the clamping inner rod 314, a limiting frame 315 is fixedly arranged at the lower end of the clamping inner rod 314, and a plurality of clamping grooves 313 are formed in the periphery of the clamping block 311 and the movable clamping piece 312;

the lower clamping piece 32 comprises a fixed clamping block 321, a clamping inner groove 322, a first limiting plate 323, an adjustable inner ring 324, a built-in clamping piece 325, a second limiting plate 326 and a limiting groove 327;

the clamping inner groove 322 is formed in the fixed clamping block 321, the built-in clamping part 325 is arranged at the lower end of the clamping inner groove 322, the adjustable inner ring 324 is fixedly mounted at the upper end of the built-in clamping part 325, the adjustable inner ring 324 is movably connected with the clamping inner groove 322, a plurality of first limiting plates 323 are fixedly mounted on the inner side of the fixed clamping block 321, a plurality of second limiting plates 326 are fixedly mounted on the inner side of the built-in clamping part 325, the second limiting plates 326 and the first limiting plates 323 correspond to the clamping groove 313, a limiting groove 327 is fixedly formed in the bottom of the inner groove of the fixed clamping block 321, and the limiting groove 327 corresponds to the limiting frame 315.

The working principle of the utility model is as follows:

when the drill bit is used, the movable clamping piece 312 is rotated to enable the clamping groove 313 in the clamping block 311 to be in sliding connection with the first limiting plate 323 and the second limiting plate 326, the limiting frame 315 corresponds to the limiting groove 327, and therefore the adjustable inner ring 324 is rotated, the built-in clamping piece 325, the movable clamping piece 312 and the upper end fixed clamping piece 321 are staggered, the upper clamping piece 31 and the lower clamping piece 32 are fixed, frequent replacement and use of the drill bit 4 are facilitated, and resource consumption is reduced.

Example 2

Referring to fig. 4, the difference from embodiment 1 is that a connecting member 5 is fixedly installed at the upper end of the drill shank 1, a plurality of prism junction surfaces 51 are arranged on the periphery of the connecting member 5, and a plurality of connecting grooves 52 are formed on the prism junction surfaces 51;

when the drilling machine is used, the drill bit is connected with the drilling machine through the connecting groove 52, stability is improved, vibration in the use process of the drill bit 4 is reduced, and use risks are reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The wear-resistant hard alloy glass triangular drill comprises a drill handle (1) and is characterized in that a threaded drill handle (2) is fixedly installed at the lower end of the drill handle (1), a clamping device (3) is fixedly installed at the lower end of the threaded drill handle (2), and the clamping device (3) comprises an upper clamping piece (31) and a lower clamping piece (32);

the upper clamping piece (31) comprises a clamping block (311), a movable clamping piece (312), a clamping groove (313), a clamping inner rod (314) and a limiting frame (315);

a clamping inner rod (314) is fixedly arranged in the middle of the lower end of the clamping block (311), and a plurality of clamping grooves (313) are formed in the periphery of the clamping block (311) and the movable clamping piece (312);

the lower clamping piece (32) comprises a fixed clamping block (321), a clamping inner groove (322), a first limiting plate (323), an adjustable inner ring (324), a built-in clamping piece (325), a second limiting plate (326) and a limiting groove (327);

the clamping inner groove (322) is formed in the fixed clamping block (321), the built-in clamping piece (325) is arranged at the lower end of the clamping inner groove (322), a plurality of first limiting plates (323) are fixedly installed on the inner side of the fixed clamping block (321), a plurality of second limiting plates (326) are fixedly installed on the inner side of the built-in clamping piece (325), and the second limiting plates (326) and the first limiting plates (323) are arranged corresponding to the clamping groove (313).

2. The wear-resistant cemented carbide glass triangular drill according to claim 1, characterized in that the drill bit (4) is fixedly installed at the lower end of the clamping device (3), the upper clamping member (31) and the lower clamping member (32) are clamped in a sliding manner, and the drill bit (4) and the lower clamping member (32) are fixedly connected.

3. The wear-resistant cemented carbide glass triangular drill according to claim 1, characterized in that the clamping inner rod (314) is sleeved with a movable clamping piece (312), and a limiting frame (315) is fixedly installed at the lower end of the clamping inner rod (314).

4. The wear-resistant cemented carbide glass triangular drill according to claim 1, characterized in that an adjustable inner ring (324) is fixedly installed at the upper end of the inner clamping piece (325), and the adjustable inner ring (324) is movably connected with the clamping inner groove (322).

5. The wear-resistant cemented carbide glass triangular drill according to claim 1, characterized in that a limiting groove (327) is fixedly formed at the bottom of the inner groove of the fixing clamping block (321), and the limiting groove (327) is arranged corresponding to the limiting frame (315).

6. The wear-resistant cemented carbide glass triangular drill according to claim 1, characterized in that the drill shank (1) is fixedly provided with a connecting piece (5) at the upper end, the periphery of the connecting piece (5) is provided with a plurality of prism joint surfaces (51), and the prism joint surfaces (51) are provided with a plurality of connecting grooves (52).