CN212285993U

CN212285993U - Drilling reamer applied to punching of LED display screen box

Info

Publication number: CN212285993U
Application number: CN202020697010.6U
Authority: CN
Inventors: 瞿朝辉
Original assignee: Shenzhen Xinbanghui Hardware Products Co ltd
Current assignee: Shenzhen Xinbanghui Hardware Products Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-05
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses an apply to drilling reamer that LED display screen box punched. Including handle of a knife and the tool bit integrative with the handle of a knife, the tool bit is provided with first spiral tangent plane, second spiral tangent plane and arranges material spiral tangent plane, and first spiral tangent plane and second spiral tangent plane comprise two at least tangent planes respectively, and the end of first spiral tangent plane and second spiral tangent plane is provided with most advanced inclined plane, and first spiral tangent plane and second spiral tangent plane are provided with the brill and glue the inclined plane with the handle of a knife junction, and first spiral tangent plane and second spiral tangent plane glue and are equipped with "V" style of calligraphy breach between the inclined plane with brill. The utility model discloses utilize first spiral tangent plane, second spiral tangent plane self to set up a plurality of tangent planes respectively and constitute, cooperation that can be better is glued the brill in big type hole for it is more meticulous to bore to glue, and, utilizes and is equipped with "V" style of calligraphy breach between first spiral tangent plane and second spiral tangent plane and brill glue the inclined plane, makes two brills glue and forms between the face and keep away the sky, and reduces the pressure point, can further promote the precision.

Description

Drilling reamer applied to punching of LED display screen box

Technical Field

The utility model belongs to the technical field of the cutter technique of punching and specifically relates to an apply to drilling reamer that LED display screen box punched.

Background

As is well known, the LED display screen box needs to punch various holes to the box in the production process, such as a countersunk hole, wherein, to specific places, a hole with a larger diameter needs to be processed, such as 18mm, the diameter of a conventional punching drill bit is mostly 4-5mm, the drilling rubber surface and the chamfering drilling rubber surface are communicated, if the size of the drill bit is increased equivalently, when the hole diameter of a large size is processed, the drilling rubber is fine and cannot be improved, the requirement cannot be met, and when the chamfering hole is drilled, unnecessary pressure points can be generated at the joint of the drilling rubber surface of the diameter hole and the drilling rubber surface of the chamfering hole on the surface, so that the surface is damaged, and the precision is further deteriorated.

Disclosure of Invention

To the not enough of existence among the above-mentioned prior art, the utility model aims to provide an apply to the drilling reamer that LED display screen box punched.

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

the utility model provides an apply to drilling reamer that LED display screen box punched, includes handle of a knife and the tool bit integrative with the handle of a knife, the tool bit is provided with first spiral tangent plane, second spiral tangent plane and arranges material spiral tangent plane, it is inwards sunken and lie in the back of first spiral tangent plane and second spiral tangent plane to arrange material spiral tangent plane, first spiral tangent plane and second spiral tangent plane comprise two at least tangent planes respectively, the end of first spiral tangent plane and second spiral tangent plane is provided with most advanced inclined plane, first spiral tangent plane and second spiral tangent plane are provided with the handle of a knife junction and bore gluey inclined plane, first spiral tangent plane and second spiral tangent plane and bore to glue and be equipped with "V" style of calligraphy breach between the inclined plane.

Preferably, the angle of the tip slope is 117-119 °.

Preferably, the angle of the drilling glue inclined plane is 89.5-90.5 degrees.

Preferably, the angle of the V-shaped notch is 90 degrees.

Due to the adoption of the scheme, the utility model discloses regard as the brill in aperture to glue with first spiral tangent plane, second spiral tangent plane, and row's material spiral tangent plane then will bore the waste material that glues the production and discharge, avoid blockking up, wherein, utilize first spiral tangent plane, second spiral tangent plane self to set up a plurality of tangent planes respectively and constitute, cooperation that can be better is glued to the brill in big type hole, makes to bore to glue more meticulously, and the most advanced inclined plane that is located first spiral tangent plane, second spiral tangent plane then is convenient for glue at the brill and begin to carry out the fixed point; in addition, utilize and be equipped with "V" style of calligraphy breach between first spiral tangent plane and second spiral tangent plane and brill gluey inclined plane for form between two brill gluey faces and keep away the space, and reduce the pressure point, and then when the large-scale hole is bored gluey, can further promote the precision.

Drawings

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

Fig. 2 is a schematic structural diagram of a V-shaped notch according to an embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 and 2, the drilling reamer for punching the LED display screen box provided by the present embodiment includes a holder 1 and a tool bit 2 integrated with the holder 1, the tool bit 2 is provided with a first spiral tangent plane 3, a second spiral tangent plane 4 and a discharging spiral tangent plane 5, the discharging spiral tangent plane 5 is inwardly recessed and located at the back of the first spiral tangent plane 3 and the back of the second spiral tangent plane 4, the first spiral tangent plane 3 and the second spiral tangent plane 4 are respectively composed of at least two tangent planes 6, the end of the first spiral tangent plane 3 and the end of the second spiral tangent plane 4 are provided with a tip inclined plane 7, the connection between the first spiral tangent plane 3 and the holder 1 and the connection between the second spiral tangent plane 4 and the holder 3 are provided with a drilling rubber inclined plane 8, and a V-shaped notch 9 is provided between the first spiral tangent plane 3 and the second spiral tangent plane 4 and the drilling.

This embodiment is by the tip inclined plane 7 of first

spiral tangent plane

3 and 4 terminal ends of second spiral tangent plane, preferentially punch the counterpoint, go on in order to make things convenient for the follow-up counterpoint of boring to glue, and first spiral tangent plane 3, second spiral tangent plane 4 mainly are responsible for gluing to the brill in aperture, and arrange material spiral tangent plane 5 and be located first

spiral tangent plane

3, 4 opposite sides of second spiral tangent plane and self are inside sunken, consequently arrange material spiral tangent plane 5 and then discharge the waste material that the brill produced gluing at the process of boring gluey, avoid blockking up. For the optimization of the drilling glue precision, a plurality of sections are respectively arranged on the first spiral section 3 and the second spiral section 4, and then the drilling glue is drilled by the plurality of sections, so that the drilling glue is finer, the drilling glue for large holes can be better matched, and the non-fine sections of the large holes during single-side cutting are avoided; in addition, the V-shaped notch 9 is arranged between the first spiral tangent plane 3 and the second spiral tangent plane 4 and the rubber drilling inclined plane 8, so that when the chamfer face is cut, a clearance is formed between the two rubber drilling faces of the diameter hole face and the chamfer face, pressure points are reduced, and the precision can be further improved when the rubber drilling is carried out on a large hole.

Further, to ensure that the cutting is effective and the effect is optimal, the angle parameters of the embodiment are as follows:

the angle a1 of tip bevel 7 in this embodiment is 117-119 °, and most preferably 118 °; the angle a2 of the drilling glue inclined plane 8 is 89.5-90.5 degrees; the angle a3 of the V-shaped notch 9 is preferably 90 DEG, and the range can be set between 45 DEG and 135 deg.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an apply to drilling reamer that LED display screen box punched which characterized in that: including handle of a knife and the tool bit integrative with the handle of a knife, the tool bit is provided with first spiral tangent plane, second spiral tangent plane and arranges material spiral tangent plane, it is inside sunken and lie in the back of first spiral tangent plane and second spiral tangent plane to arrange material spiral tangent plane, first spiral tangent plane and second spiral tangent plane constitute by two at least tangent planes respectively, the end of first spiral tangent plane and second spiral tangent plane is provided with most advanced inclined plane, first spiral tangent plane and second spiral tangent plane are provided with the brill and glue the inclined plane with the handle of a knife junction, first spiral tangent plane and second spiral tangent plane glue and are equipped with "V" style of calligraphy breach between the inclined plane with the brill.

2. The drilling reamer for perforating the LED display screen box body as recited in claim 1, wherein: the angle of the tip slope is 117-119 deg.

3. The drilling reamer for perforating the LED display screen box body as recited in claim 1, wherein: the angle of the drilling rubber inclined plane is 89.5-90.5 degrees.

4. The drilling reamer for perforating the LED display screen box body as recited in claim 1, wherein: the angle of the V-shaped notch is 90 degrees.