CN211137403U

CN211137403U - Drill bit for target hole drilling of high TG plate

Info

Publication number: CN211137403U
Application number: CN201921627630.6U
Authority: CN
Inventors: 杨肖; 王志荣; 李智林
Original assignee: Guangdong Dingtai Hi Tech Precision Technology Co ltd
Current assignee: Guangdong Dingtai Hi Tech Co., Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-31
Anticipated expiration: 2029-09-27

Abstract

The utility model belongs to the technical field of the processing equipment, concretely relates to be used for high TG panel to beat target hole processing drill bit, including drill bit body and extension handle of a knife, the drill bit body with the extension handle of a knife is connected through transition awl, the drill bit body is provided with sword groove and cutting edge, the sword groove with the cutting edge is adjacent to be set up, the tip of cutting edge is provided with chisel edge, low-blade point of drill and knife tip protection architecture, the chisel edge low-blade point of drill the knife tip protection architecture connects gradually. The drill point contains a grinding chisel edge, the cutting is sharp, and the plate is not easy to deform; because the sharp points on the two sides of the vertex angle are protected by the tool tips, the tool tips are not limited to be in a straight line or an arc shape, and the tool tips resist tipping and abrasion; the side edge adopts a mode of grinding the back angle or keeping the cylindrical edge, and the quality of the processed hole wall is high due to the adoption of the mode of grinding the back angle of the side edge.

Description

Drill bit for target hole drilling of high TG plate

Technical Field

The utility model belongs to the technical field of the processing equipment, concretely relates to be used for high TG panel to beat target hole processing drill bit.

Background

As is well known, in the field of machining, a drill bit is an indispensable basic tool, and the drill bit is a tool for machining through holes or blind holes on solid parts such as the outer surface of a part, the inner cavity surface and the like.

In the prior art, a PCB is a high TG plate, and in the PCB industry, when a drill is used for drilling a target hole, a drill tip is easy to break and wear, so that the machined hole wall has large burrs and the service life of a cutter is short; and the quality problems of poor straightness, poor roundness and the like of the processed hole caused by the unbalanced cutting force of the drill bit.

In view of the above, the related art needs to be perfected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects of the prior art, the drill bit for processing the target hole of the high-TG plate is provided, the strength of a tool nose is high when difficult-to-process materials such as the high-TG plate are processed, the drill bit is resistant to tipping, the drilling is stable, the straightness and roundness precision of the processed hole are high, and the hole wall quality is good.

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

the utility model provides a be used for high TG panel to hit target hole processing drill bit, includes drill bit body and extension handle of a knife, the drill bit body with the extension handle of a knife is connected through transition awl, the drill bit body is provided with sword groove and cutting edge, the sword groove with the cutting edge is adjacent to be set up, the tip of cutting edge is provided with chisel edge, low sword drill point and knife tip protective structure, the chisel edge low sword drill point knife tip protective structure connects gradually. The drill point contains a grinding chisel edge, the cutting is sharp, and the plate is not easy to deform; because the sharp points on the two sides of the vertex angle are protected by the tool tips, the tool tips are not limited to be in a straight line or an arc shape, and the tool tips resist tipping and abrasion; the side edge adopts a mode of grinding the back angle or keeping the cylindrical edge, and the quality of the processed hole wall is high due to the adoption of the mode of grinding the back angle of the side edge.

As an improvement of a processing drill bit for high TG panel target hole, in practical application, the diameter of extension handle of a knife is preferably greater than the diameter of drill bit body circumcircle. This kind of structural design is favorable to driving the rotatory processing that processes of drill bit body, guarantees the stability of processing.

As an improvement of a processing drill bit for high TG panel target hole, the diameter size of the circumscribed circle of the drill bit body is 0.2mm ~ 6.5 mm. The structural design is beneficial to increasing the machining precision.

As an improvement of a processing drill bit for high TG panel target hole, the drill bit body the transition awl the extension handle of a knife is the integrated into one piece structure. The structural design is favorable for ensuring the integral mechanical strength of the drill bit and prolonging the service life of the drill bit.

As an improvement of the high TG panel target hole processing drill, the cutter groove is spiral. The structure design is beneficial to processing and simultaneously is beneficial to discharging scraps generated in the processing process.

As an improvement of the high TG panel target hole processing drill, the cutting edge is spiral. The structural design is beneficial to ensuring the processing strength.

As the utility model discloses an improve that is used for high TG panel to beat target hole processing drill, the thickness of chisel edge with the thickness of low sword drill point is the same. The structural design is beneficial to ensuring the machined surface roughness to be consistent.

As an improvement of a processing drill bit for high TG panel target hole, knife tip protection architecture is four pyramid. The structural design is beneficial to protecting the cutting edge, and the tool tip is resistant to tipping and abrasion.

As an improvement of the drill for high TG board target hole processing, the chisel edge set up in the middle part of the cutting edge tip. The structure design ensures that the cutting edge is sharp and the plate is not easy to deform.

As an improvement of the drill for high TG panel target hole processing, the low-edge drill point the knife tip protection structure is a symmetrical type set up in the lateral part of the cutting edge tip. The structural design ensures high quality of the processed hole wall.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural view of a main view in an embodiment of the present invention;

fig. 2 is a schematic side view of an embodiment of the present invention;

wherein: 1-a drill bit body; 11-a knife slot; 12-a blade edge; 121-chisel edge; 122-low-edge drill tip; 123-a knife tip protection structure; 2-lengthening the knife handle; 3-transition cone.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.

Examples

As shown in fig. 1-2, a processing drill bit for target hole drilling of a high TG plate comprises a drill bit body 1 and a lengthened cutter handle 2, wherein the drill bit body 1 is connected with the lengthened cutter handle 2 through a transition cone 3, the drill bit body 1 is provided with a cutter groove 11 and a cutter edge 12, the cutter groove 11 is adjacent to the cutter edge 12, the end of the cutter edge 12 is provided with a cross blade 121, a low-blade drill point 122 and a cutter point protection structure 123, and the cross blade 121, the low-blade drill point 122 and the cutter point protection structure 123 are sequentially connected. The drill point contains a coping chisel edge 121, the cutting is sharp, and the plate is not easy to deform; because the sharp points on the two sides of the vertex angle are protected by the tool tips, the tool tips are not limited to be in a straight line or an arc shape, and the tool tips resist tipping and abrasion; the side edge adopts a mode of grinding the back angle or keeping the cylindrical edge, and the quality of the processed hole wall is high due to the adoption of the mode of grinding the back angle of the side edge.

Preferably, in practical application, the diameter of the lengthened cutter handle 2 is larger than the diameter of the circumcircle of the drill bit body 1. This kind of structural design is favorable to driving drill bit body 1 rotation and processes, guarantees the stability of processing.

Preferably, the diameter of the circumcircle of the drill bit body 1 is 0.2 mm-6.5 mm. The structural design is beneficial to increasing the machining precision.

Preferably, the drill bit body 1, the transition cone 3 and the lengthened cutter handle 2 are of an integrally formed structure. The structural design is favorable for ensuring the integral mechanical strength of the drill bit and prolonging the service life of the drill bit.

Preferably, the sipe 11 is helical. The structure design is beneficial to processing and simultaneously is beneficial to discharging scraps generated in the processing process.

Preferably, the cutting edge 12 is helical. The structural design is beneficial to ensuring the processing strength.

Preferably, the chisel edge 121 has the same thickness as the low-edge point 122. The structural design is beneficial to ensuring the machined surface roughness to be consistent.

Preferably, the tip guard structure 123 has a quadrangular pyramid shape. The design of the structure is beneficial to protecting the cutting edge 12, and the tool tip is resistant to tipping and abrasion.

Preferably, the chisel edge 121 is disposed in the middle of the end of the blade 12. The structure design enables the blade 12 to cut sharply, and the plate is not easy to deform.

Preferably, the low-edge drill point 122 and the tip protection structure 123 are symmetrically disposed on the side of the end of the cutting edge 12. The structural design ensures high quality of the processed hole wall.

The utility model discloses a theory of operation is: the drill point contains a coping chisel edge 121, the cutting is sharp, and the plate is not easy to deform; because the sharp points on the two sides of the vertex angle are protected by the tool tips, the tool tips are not limited to be in a straight line or an arc shape, and the tool tips resist tipping and abrasion; the side edge adopts a mode of grinding the back angle or keeping the cylindrical edge, and the quality of the processed hole wall is high due to the adoption of the mode of grinding the back angle of the side edge.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used 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. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a be used for high TG panel to hit target hole processing drill bit which characterized in that: including drill bit body (1) and extension handle of a knife (2), drill bit body (1) with extension handle of a knife (2) are connected through transition awl (3), drill bit body (1) is provided with sword groove (11) and cutting edge (12), sword groove (11) with cutting edge (12) adjacent setting, the tip of cutting edge (12) is provided with chisel edge (121), low-edge drill point (122) and knife tip protection architecture (123), chisel edge (121) low-edge drill point (122) knife tip protection architecture (123) connect gradually.

2. The drill for high-TG board target hole processing according to claim 1, wherein: the diameter of the circumscribed circle of the drill bit body (1) is 0.2 mm-6.5 mm.

3. The drill for high-TG board target hole processing according to claim 1, wherein: the drill bit body (1), the transition cone (3) and the lengthened cutter handle (2) are of an integrally formed structure.

4. The drill for high-TG board target hole processing according to claim 1, wherein: the knife groove (11) is spiral.

5. The drill for high-TG board target hole processing according to claim 1, wherein: the blade (12) is helical.

6. The drill for high-TG board target hole processing according to claim 1, wherein: the tool nose protection structure (123) is in a quadrangular pyramid shape.

7. The drill for high-TG board target hole processing according to claim 1, wherein: the chisel edge (121) is disposed in the middle of the end of the blade (12).

8. The drill for high-TG board target hole processing according to claim 1, wherein: the low-edge drill point (122) and the tool tip protection structure (123) are symmetrically arranged on the side part of the end part of the cutting edge (12).