CN212350497U

CN212350497U - Adjustable countersinking tool

Info

Publication number: CN212350497U
Application number: CN202021198948.XU
Authority: CN
Inventors: 童顺锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-01-15
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses an adjustable countersink cutter, which comprises a drill bit, an adjusting seat and a blade, wherein the drill bit body of the drill bit is in a twist shape and is connected with the adjusting seat through the adjustable position of a drill bit fixing screw; the longitudinal section of the adjusting seat is in a cross shape, two cutter holes are longitudinally arranged, a through hole is arranged at the transverse central position, a drill fixing screw penetrates through the through hole to fix the drill and the adjusting seat, two semi-through holes are arranged at two sides of the through hole, and a blade fixing screw is screwed in the through hole to fix the blade and the adjusting seat; the two blades are assembled in the cutter hole and clamped on two sides of the drill bit. The utility model discloses a design of adjusting the seat is assembled drill bit and blade adjustably, accomplishes drilling and ream mouth simultaneously, assembles simple and conveniently easy to maintain.

Description

Adjustable countersinking tool

Technical Field

The utility model belongs to the technical field of the drilling instrument, a adjustable counter boring sword is related to.

Background

In the existing lock making industry and other industries needing drilling, drilling is needed first, then countersinking is needed, so that the attractiveness of the hole is improved, and post-process machining is facilitated.

The first method is a bench drill, a drill bit and a countersink are welded into a whole, and the countersink is drilled immediately, so that the defects of high cost of the drill bit and inconvenience in drilling and grinding are overcome; secondly, referring to fig. 1 to 3, a drill 10 is used to drill a hole, and then a countersink 40 is used to countersink the hole, so that the screw 50 can be installed in the hole, which increases the number of processes and the processing cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provided one kind and can be with the adjustable countersink sword of the nimble assembly of drill bit and countersink.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an adjustable countersink tool comprises a drill, an adjusting seat and a blade, wherein,

the drill body of the drill bit is in a twist shape and is connected with the adjusting seat in an adjustable position through a drill bit fixing screw; the longitudinal section of the adjusting seat is in a cross shape, two cutter holes are longitudinally arranged, a through hole is arranged at the transverse central position, a drill fixing screw penetrates through the through hole to fix the drill and the adjusting seat, two semi-through holes are arranged at two sides of the through hole, and a blade fixing screw is screwed in the through hole to fix the blade and the adjusting seat; the two blades are assembled in the cutter hole and clamped on two sides of the drill bit.

Preferably, the two half through holes are located on different sides of the adjusting seat.

Preferably, the blade comprises a handle and a blade, and the handle is in a cubic column shape.

Preferably, the blade edge is W-shaped.

Preferably, the blade edge is T-shaped.

Preferably, the blade further comprises an arcuate portion between the shank and the cutting edge for engaging the twist drill body of the drill.

Compared with the prior art, the utility model discloses an adopt above-mentioned technical scheme, beneficial effect includes at least:

(1) the spot facing drill is carried out while drilling, so that the process is simple and convenient;

(2) the positions of the drill bit and the blade can be adjusted through the adjusting seat, the drill bit fixing screw and the blade fixing screw, matching is carried out according to different requirements of drilling depth, and the drill bit is wide in application;

(3) need not avoid in the use can take place the damage condition such as drill bit fracture, integrative bench level bores with high costs among the prior art, and if meet damage whole scrapping, also can't temper when the cutting edge of countersink drill part is not sharp, the utility model provides a technical scheme can temper alone when the blade is dull, adopts general sharpener can.

Drawings

FIG. 1 is a schematic view of a prior art drill bit;

FIG. 2 is a schematic view of a countersink drill in the prior art;

FIG. 3 is a schematic view of a screw structure after drilling and countersinking in the prior art;

FIG. 4 is a schematic structural view of an adjustable countersink tool according to an embodiment of the present invention;

FIG. 5 is a schematic view of an adjusting seat of the adjustable countersink tool according to an embodiment of the present invention;

FIG. 6 is a schematic view of a fixing screw structure of the adjustable countersink tool according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a blade of the adjustable countersink tool according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in order to provide a better understanding of the present invention to the public, certain specific details are set forth in the following detailed description of the invention. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details.

Example 1

Referring to fig. 4, the embodiment of the present invention provides an adjustable countersink tool, which includes a drill 10, an adjusting seat 20 and a blade 30, wherein the drill 10 has a twist shape or a reamer shape, and is connected with the adjusting seat 20 through a drill fixing screw 21 in an adjustable position; the longitudinal section of the adjusting seat 20 is cross-shaped, two tool holes are longitudinally arranged, a through hole is arranged at the transverse central position, a drill bit fixing screw 21 penetrates through the through hole to fix the drill bit 10 and the adjusting seat 20, two half through holes are arranged at two sides of the through hole, and a blade fixing screw 22 is screwed in the through hole to fix the blade 30 and the adjusting seat 20; two inserts 30 are provided, fitted in the tool hole, and clamped on both sides of the drill 10.

Specifically, the drill 10 and the blade 30 can be flexibly adjusted in position and can be used independently or assembled together, and when the adjusting seat 20 is assembled together for use, the coaxiality of drilling and spot facing is guaranteed, and the abrasion of the blade 30 is reduced.

Example 2

Further, referring to fig. 5 and 6, the two inserts 30 are asymmetrically installed in the adjustment seat 20, which has the advantage of equalizing the forces applied when rotating the countersink, and the two half-through holes are located on different sides of the adjustment seat 20, wherein the inserts 30 are fixed by the insert fixing screws 22. The drill fixing screw 21 may be a whole body passing through the through hole of the adjusting seat 20, or two opposite screws for fixing the drill 10, and the two arrangements may be matched according to the different shapes of the drill 10.

Example 3

Further, referring to fig. 7, the blade 30 includes a handle 31 and a blade 32, the handle 31 is in a cubic column shape, the processing is convenient, the blade 32 is in a W shape or a T shape or a blade 32 shape formed by other alloy materials, after multiple uses, the blade 32 is inevitably dull, at this time, the blade fixing screw 22 is screwed out, and the blade 30 can be taken out from the adjusting seat 20 and sharpened by the sharpener. The countersink machined by the blade 30 provides space for the nut part of the screw, and simultaneously solves the problems of hole burr and layer formation after drilling.

The blade 30 also includes an arcuate portion 33 between the shank 31 and the cutting edge 32 that engages the twist shank of the drill bit 10, and preferably rotates with the drill bit 10.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An adjustable countersink tool is characterized by comprising a drill bit, an adjusting seat and a blade, wherein,

the drill body of the drill bit is in a twist shape or a reamer shape and is connected with the adjusting seat through the adjustable position of the drill bit fixing screw; the longitudinal section of the adjusting seat is in a cross shape, two cutter holes are longitudinally arranged, a through hole is arranged at the transverse central position, a drill fixing screw penetrates through the through hole to fix the drill and the adjusting seat, two semi-through holes are arranged at two sides of the through hole, and a blade fixing screw is screwed in the through hole to fix the blade and the adjusting seat; the two blades are assembled in the cutter hole and clamped on two sides of the drill bit.

2. The adjustable countersink tool of claim 1, wherein said two half-bores are located on different sides of the adjustment seat.

3. The adjustable countersink tool of claim 1, wherein said blade comprises a shank and a cutting edge, the shank being a right square cylinder.

4. The adjustable countersink tool of claim 3, wherein said cutting edge is W-shaped.

5. The adjustable countersink tool of claim 3, wherein said cutting edge is T-shaped.

6. The adjustable countersink tool of claim 3, wherein said blade further comprises an arcuate portion between said shank and said cutting edge for engaging a twist drill body of said drill.