CN110815590A

CN110815590A - Corner drilling machine

Info

Publication number: CN110815590A
Application number: CN201911203897.7A
Authority: CN
Inventors: 赵晨瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-21
Anticipated expiration: 2039-11-29
Also published as: CN110815590B

Abstract

The invention belongs to the technical field of drilling equipment, and particularly relates to a corner drilling device which comprises a shell, a drill bit, a drilling saw blade, a fixed bearing and a shaft sleeve, wherein two side surfaces of the shell are used for being attached and positioned to two side surfaces of a corner to be drilled, and a drilling saw blade accommodating cavity is formed in the corresponding position of the shell and the drilling saw blade; the drill bit and the drilling saw blade are coaxially arranged, the saw tooth direction of the drilling saw blade is consistent with the direction of the drill bit, the drill bit and the drilling saw blade are connected to the shell through the bearing and the shaft sleeve, the drill bit and the drilling saw blade penetrate through the shell, and the drilling saw blade is arranged in the drilling saw blade accommodating cavity. According to the drill bit positioning device, the positioning of corner drilling is realized by adopting the shell, and the drill cuttings are collected into the shell by adopting the chip removal holes, so that the problem of chip flying falling is solved, and the guarantee is provided for realizing 5S of drilling operation.

Description

Corner drilling machine

Technical Field

The invention belongs to the technical field of drilling equipment, and particularly relates to a corner drilling device.

Background

In the prior art, when a hole is formed in a suspended ceiling, the hole is directly formed by matching a corresponding drill bit with an electric drill. In the patent document with publication number CN 204449406U, a device for ceiling drilling is provided, which comprises a tripod, a screw rod and a baffle plate, wherein the top end of the tripod is provided with a hole with threads, the screw rod is connected with the tripod through a threaded hole, the bottom end of the screw rod is connected with a rotatable handle, the part of the screw rod connected with the tripod is provided with scales, the middle of the baffle plate is provided with a threaded hole, the baffle plate is positioned at the upper end of the tripod, the baffle plate is connected with the screw rod through the threaded hole in a matching way, and the top end of the screw rod is connected with a punching. In this patent document, the drilling device is suitable for drilling straight holes. The inclined hole device in the prior art is mainly suitable for the field of woodworking drilling and is used for drilling inclined holes from top to bottom. Therefore, it is necessary to design a corner drill suitable for drilling inclined holes at corners.

Disclosure of Invention

The invention aims to solve the technical problem of how to accurately and conveniently open inclined holes at the corners of a gypsum board. The invention aims to design a corner drill for chamfering the corners of gypsum boards based on the technical problem. Based on the purpose, the technical scheme adopted by the invention is as follows:

a corner drilling device comprises a shell, a drill bit, a drilling saw blade, a fixed bearing and a shaft sleeve, wherein two side surfaces of the shell and two side surfaces of a corner to be drilled are respectively attached and positioned, and a drilling saw blade accommodating cavity is formed in the corresponding position of the shell and the drilling saw blade; the drill bit and the drilling saw blade are coaxially arranged, the saw tooth direction of the drilling saw blade is consistent with the direction of the drill bit, the drill bit and the drilling saw blade are connected to the shell through a bearing and a shaft sleeve, the drill bit and the drilling saw blade penetrate through the shell, and the drilling saw blade is arranged in the drilling saw blade accommodating cavity; the drill bit is arranged on one side, close to the drilling saw blade, of the shell and is sleeved with a first spring.

Furthermore, the drilling saw blade is of a cylindrical structure, and chip removal holes are formed in the side wall of the drilling saw blade.

Further, the shell is of a hollow structure, and a cover body is arranged on one top surface of the shell.

Further, the outer shell is of a triangular prism-shaped structure; the drill bit penetrates through one side surface of the shell and penetrates out of the drilling saw blade accommodating cavity; the other two corresponding side surfaces of the side surface are respectively attached to the two side surfaces of the corner.

Further, the cross section of the shell is an isosceles right triangle.

Further, the shell is of a V-shaped structure, the drill bit penetrates through the ridge, and the drill bit and the drilling saw blade are arranged in a V-shaped cavity.

Further, a second spring is sleeved at the position, located on the outer side of the shell, of the drill bit.

Further, the housing is made of a transparent material.

When the drilling tool is used, the box body and the drilling device are adopted, the drill hole is provided with the drill rod and the saw blade, and the box body is used for collecting drill cuttings; the box body is provided with a first surface and a second surface which are matched with the shapes of the corners, and a third surface for installing a drill rod of the drilling device, round holes for penetrating through a drilling saw blade are formed in the first surface and the second surface, a bearing for restraining the drill rod to rotate is arranged on the third surface, and a shaft sleeve for restraining the drill rod to axially stretch and retract is installed in the bearing.

The first surface, the second surface of box body can be according to the actual angle combination of drilling turning, for example common 90 right angles, and the third surface is arranged according to the contained angle of required drilling (erection equipment) and turning, for example common 45 slant is down, so first surface, second surface, third surface can make detachable structure, and its edge adopts the mode of joint or bonding. When the included angle between the first surface and the second surface is changed, the projection shapes of the drilling saw blade on the first surface and the second surface are different, so that the first surface and the second surface are made of materials which can be cut by the drilling saw blade, only the drill bit positioning hole is reserved at the junction, and then the rest part is cut by the circular saw blade together with the drilled ceiling during working.

The innovation point of the invention is that the drilling cuttings are collected by utilizing the inner space of the box body. Meanwhile, the front face of the box body is matched with the outline of a drilled plane, and the shape and rigidity of the whole box body are utilized to guide a drill bit arranged on a back plate of the box body.

The box body can be a paper box or a plastic box, a bearing is arranged on the back plate of the box body, the thickness of the box body is obviously larger than that of the box body, and the back plate of the box body and other parts of the box body are designed into separable structures. Especially, for various special-shaped designs of the decorative gypsum board suspended ceiling, the back plate can be used for matching with box bodies in various shapes, the back plate is detachably connected with the side surface of the box body, and the modes such as clamping, zipper and even sticking and fixing are adopted. The front face of the box body can be free from a reserved hole, and after the back plate is combined, the hole on the front face of the box body and the hole on the gypsum plate are simultaneously opened by the aid of the hole-opening saw blade.

Compared with the prior art, the invention has the advantages that:

(1) the shell is convenient to position, two adjacent side surfaces of the shell are respectively propped against two surfaces of a corner to be drilled, so that positioning is realized, and drilling is performed;

(2) the side of the drilling saw blade is provided with the chip removal hole, flying chips generated by drilling are discharged into the shell through the chip removal hole, and the flying chips are prevented from falling off to influence the operation of drilling personnel.

Drawings

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

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a side view of FIG. 1;

FIG. 6 is a sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic sectional view of example 2 of the present invention;

FIG. 8 is a schematic structural view of embodiment 3 of the present invention;

FIG. 9 is a rear view of FIG. 8;

fig. 10 is a cross-sectional view of fig. 8.

Detailed Description

Example 1

As shown in fig. 1-6, a corner drill includes a housing 1, a drill bit 2, a drilling saw blade 3, a fixed bearing 4, and a bushing 5. The shell 1 is a triangular prism-shaped structure; two adjacent sides of shell 1 and two sides at the turning that will bore hole are laminated the location respectively, and shell 1 and the position that drilling saw blade 3 corresponds have seted up drilling saw blade holding chamber 11, and drill bit 2 passes a side 13 of shell 1, wears out in this drilling saw blade holding chamber 11. Drill

bit

2 and 3 coaxial settings of drilling saw bit, the sawtooth direction of drilling saw bit 3 is unanimous with the direction of drill bit 2, and drill bit 2 and drilling saw bit 3 pass through bearing 4 and axle sleeve 5 and connect on shell 1, and the smooth rotation of drill bit 2 and drilling saw bit 3 when ensureing to drill through bearing 4 sets up axle sleeve 5 and guarantees the axial displacement of drill bit and drilling saw bit 3. The drill bit 2 and the drilling saw blade 3 penetrate through the shell 1, and the drilling saw blade 3 is arranged in the drilling saw blade accommodating cavity 11; the drill bit 2 is sleeved with a first spring 6 on one side of the shell close to the drilling saw blade 3.

The drilling saw blade 3 adopts a cylindrical structure, and the side wall of the drilling saw blade is provided with a chip removal hole 31. During drilling, due to the operation from bottom to top, the generated flying chips can be accumulated in the cylinder of the drilling saw blade, the side wall is provided with the chip removal hole 31 at the moment, and the generated flying chips are discharged from the chip removal hole 31 and are prevented from being accumulated in the drilling saw blade 3.

The housing 1 is hollow, and a cover 12 is disposed on one top surface of the housing. Flying chips discharged from the chip removal holes are gathered in the shell 1, and the flying chips are prevented from falling into eyes of operators to influence the operation. After the operation is completed, the cover 12 is opened and the debris in the housing is poured out.

The cross section of the shell 1 is an isosceles right triangle. The shape of the cross section of the shell 1 is related to the angle of the inclined hole to be drilled, and when the inclined hole needs to be inclined by 45 degrees, the cross section of the shell 1 is an isosceles right triangle. When inclined holes with other angles need to be drilled, the cross-sectional shape of the shell 1 can be adjusted correspondingly.

The position of the drill bit 2, which is positioned outside the shell 1, is sleeved with a second spring 7. Two sides of the second spring 7 respectively abut against the side surface 13 of the box body base and a clamping end of the electric drill, when drilling is carried out, an operator applies thrust by the electric drill, the second spring provides restoring force, and the drill is retracted after drilling.

The embodiment is mainly suitable for internal corner drilling.

The working process is as follows: when drilling is needed, the drill is connected to an electric drill, then two side surfaces of the shell 1 in the extending direction of the drill bit are tightly attached to two side surfaces of the internal corner, so that positioning is achieved, and then drilling is conducted. After the drilling is finished, the drill bit 2 is quickly retreated under the action of the two springs. Finally, the cover of the housing 1 is opened and the debris in the housing is poured out.

Example 2

The difference between this embodiment and embodiment 1 is that the corner drilling and hollowing device in this embodiment is mainly suitable for external corner drilling.

The corner drill of this embodiment is shown in fig. 7 and comprises a housing 1, a drill bit 2, a drilling saw blade 3, a fixed bearing 4 and a sleeve 5. The front end 14 of the shell 1 is a V-shaped structure, a hole which penetrates through the drill bit 2 and the drilling saw blade 3 is formed in the V-shaped structure, the drill bit 2 and the drilling saw blade 3 are arranged in a V-shaped cavity, and the V-shaped cavity forms a saw blade accommodating cavity 11. The two inner sides of the housing 1 are positioned against the two sides of the corner to be drilled, respectively. The drill bit 2 and the drilling saw blade 3 are coaxially arranged, the sawtooth direction of the drilling saw blade 3 is consistent with the direction of the drill bit 2, the drill bit 2 and the drilling saw blade 3 are connected to the shell 1 through a bearing 4 and a shaft sleeve 5, and the drill bit 2 and the drilling saw blade 3 penetrate through the shell 1.

The operator applies a pushing force with the electric drill, the second spring provides a restoring force, and the drill is retracted after drilling.

Example 3

As shown in fig. 8, 9 and 10, the present embodiment is an application of the corner drill described above on a plane, and includes a housing 1, a drill bit 2, a drilling saw blade 3, a fixed bearing 4, a bushing 5 and a first spring 6. The shell 1 is a hollow shell structure; the drill bit 2 penetrates through the shell 1, the drilling saw blade 3 and the drill bit 2 are coaxially arranged, the drilling saw blade 3 is arranged in the shell 1, and the shell 1 corresponds to the position of the tail end of the drilling saw blade 3, and a through hole 11 is formed. The drill bit 2 and the drilling saw blade 3 are connected to the housing 1 by means of a fixed bearing 4 and a sleeve 5. The sleeve 5 comprises an outer bush 51 and an inner bush 52, the outer bush 51 is mounted between the bearing 4 and the drill bit 2, the inner bush 52 is arranged above the outer bush 51, and the brush 7 is arranged between the outer bush 51 and the drill bit 2. The side of the casing 1, which is attached to the drill bearing surface, is provided with an elastic pad, the elastic pad is also provided with a through hole, and one side of the casing 1 is provided with a fan 8. The first spring 6 is fitted over the drill 2 and has one end connected to the drilling saw blade 3. During drilling, an operator applies thrust by using an electric drill, the first spring 6 of the spring is compressed, and after the drilling is finished, the spring provides restoring force to enable the drill to return.

The saw blade 3 includes a first saw blade 31 and a second saw blade 32, the direction of the teeth of the first saw blade 31 is the same as the direction of the drill 2, and the direction of the teeth of the second saw blade 32 is perpendicular to the drill 2. The first saw blade 31 is disposed at an end near the through hole 11, the second saw blade 32 is disposed at an end far from the through hole in the housing, and the diameter of the second saw blade 32 is larger than that of the first saw blade 31.

The side wall of the first drilling blade 31 is provided with clearance holes 33. During drilling, due to the operation from bottom to top, the generated flying chips can be accumulated in the cylinder of the drilling saw blade, the side wall is provided with the chip removal hole 33 at the moment, and the generated flying chips are discharged from the chip removal hole 33 and are prevented from being accumulated in the drilling saw blade 3.

The sleeve 5 comprises an outer bush 51 mounted between the bearing 4 and the drill bit 2, and an inner bush 52 provided above the outer bush 51. The outer diameter of the adjacent end of the inner and outer liners 52 and 51 is smaller than the inner diameter of the outer liner 51, and the outer diameter of the other end is larger than the inner diameter of the outer liner 51. When the drill 2 moves axially, the inner bush 52 moves in the direction of the bearing 4, and when the drill moves to the outer bush 51, one end of the inner bush 52 moves into the outer bush 51, and the other end is caught on the outer bush 52.

A second spring 9 is arranged between the housing 1 and the electric drill, and the second spring 9 is arranged between the housing 1 and the electric drill.

During the use, with 2 centre gripping of drill bit on the electric drill, during drilling, 2 drive brushes 7 rotations of drill bit, fan 8 is connected with the bearing through bevel gear mechanism, and fan 8 outwards inhales the air in the shell 1 when rotating for form the negative pressure in the shell 1, piece and dust are inhaled in the shell 1 through first through-hole by the surface of negative pressure from drilling. After the drilling is finished, when the drill bit rotates reversely, the brush 7 rotates reversely, and dust remaining on the drill bit groove is swept into the shell 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention; thus, while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.

Claims

1. A corner reamer, comprising: the drilling tool comprises a shell (1), a drill bit (2), a drilling saw blade (3), a fixed bearing (4) and a shaft sleeve (5), wherein two side surfaces of the shell (1) are used for being attached to and positioned on two side surfaces of a corner to be drilled, and a drilling saw blade accommodating cavity (11) is formed in the position, corresponding to the drilling saw blade (3), of the shell (1); the drill bit (2) and the drilling saw blade (3) are coaxially arranged, the saw tooth direction of the drilling saw blade (3) is consistent with the direction of the drill bit (2), the drill bit (2) and the drilling saw blade (3) are connected to the shell (1) through a bearing (4) and a shaft sleeve (5), the drill bit (2) and the drilling saw blade (3) penetrate through the shell (1), and the drilling saw blade (3) is arranged in the drilling saw blade accommodating cavity (11); the drill bit (2) is positioned on one side of the shell close to the drilling saw blade (3) and is sleeved with a first spring (6).

2. The corner reamer of claim 1, wherein: the drilling saw blade (3) is of a cylindrical structure, and chip removal holes (31) are formed in the side wall of the drilling saw blade (3).

3. The corner reamer of claim 2, wherein: the shell (1) is of a hollow structure, and a cover body (12) is arranged on one top surface of the shell.

4. The corner reamer of claim 1, wherein: the shell (1) is of a triangular prism-shaped structure; the drill bit (2) penetrates through one side surface (13) of the shell and penetrates out of the drilling saw blade accommodating cavity (11); the other two corresponding side surfaces of the side surface (13) are respectively attached to the two side surfaces of the corner.

5. The corner reamer of claim 4, wherein: the cross section of the shell (1) is an isosceles right triangle.

6. The corner reamer of claim 1, wherein: the casing (1) is of a V-shaped structure, the drill bit (2) penetrates through the ridge (14), and the drill bit (2) and the drilling saw blade (3) are arranged in a V-shaped cavity.

7. The corner reamer of claim 1, wherein: and a second spring (7) is sleeved at the position, located on the outer side of the shell (1), of the drill bit (2).

8. The corner reamer of claim 1, wherein: the housing (1) is a transparent housing.

9. A corner drilling method, characterized by: a box body and a drilling device are adopted, the drilling hole is provided with a drill rod and a saw blade, and the interior of the box body is used for collecting drill cuttings; the box body is provided with a front face and/or a side face matched with the shape of the corner, and a back plate used for mounting a drill rod of the drilling machine, the front face and/or the side face is used for penetrating out of the saw blade, a bearing is mounted on the back plate, and a shaft sleeve used for restricting the feeding direction of the drill rod is mounted in the bearing.

10. The corner drilling method of claim 9, wherein: the back plate is fixedly connected with the box body, the drilling cuttings are collected by utilizing the inner space of the box body, the profile of a drilled plane is matched by utilizing the front surface of the box body, and the whole shape and rigidity of the box body are utilized to guide a drill bit arranged on the back plate of the box body.