CN210453005U

CN210453005U - Drill bit with flow guide cutter face

Info

Publication number: CN210453005U
Application number: CN201921470659.8U
Authority: CN
Inventors: 张建新
Original assignee: Kunshan Yishiteng Alloy Tool Co ltd
Current assignee: Kunshan Yishiteng Alloy Tool Co ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-05
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a drill bit with a diversion cutter face, which comprises a drill handle, wherein a drill bit is fixed at one end of the drill handle, two spiral chip guide grooves are arranged on the surface of the drill bit at intervals, two cutter edge zones are formed on the surface of the drill bit between the two chip guide grooves, and the outer edges of the two cutter edge zones are provided with lateral edge cutter back edges; through being provided with drill bit, lead bits ditch, drill point, sword back of a blade, fish tail cutting angle and sword cutting edge, be convenient for process the HDI panel, avoid carrying out the in-process of processing to the HDI panel, the HDI panel of processing is protruding about easy and the hole of exploding, leads to its easy formation copper to emit and remains and surface damage.

Description

Drill bit with flow guide cutter face

Technical Field

The utility model belongs to the technical field of the drill bit, concretely relates to take drill bit of water conservancy diversion knife face to chew.

Background

Along with the rapid development of electronic information technology, the requirement on the product quality is higher and higher, when HDI plates are processed, holes need to be punched, due to the fact that no support exists when HDI target position holes are formed due to the processing characteristics of a traditional target shooting machine, the HDI plates to be processed are prone to protruding up and down and exploding, therefore the formed copper caps are left and damaged on the surface, the hole surface is rough due to manual grinding, and therefore the drill with the flow guide cutter surface is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take drill bit of water conservancy diversion knife face to provide the characteristic of traditional target shooting machine processing in solving above-mentioned background art, do not support when leading to HDI target position hole, processed HDI panel is easy protruding from top to bottom and explodes the hole, thereby the copper that forms emits the circumstances such as remain and surface damage, handle through artifical coping and will cause the problem that the hole face is coarse.

In order to achieve the above object, the utility model provides a following technical scheme: the drill bit with the flow guide tool face comprises a drill handle, wherein a drill bit is fixed at one end of the drill handle, two spiral chip guide grooves are formed in the surface of the drill bit at intervals, two cutter blade zones are formed in the surface of the drill bit between the chip guide grooves, the outer edges of the two cutter blade zones are provided with lateral edge cutter blade backs, a fish tail cutting angle is formed between the two cutter blade zones, and a drill tip is formed at one end of each cutter blade zone.

Preferably, the included angle of the cutting angle of the fishtail is 90 degrees.

Preferably, the relief angle formed between one of said lands and the axis of the drill is 10 degrees and the relief angle formed between the other of said lands and the axis of the drill is 45 degrees.

Preferably, the chip guide groove is a helical angle, and the angle of the helical angle is 28-35 degrees.

Preferably, the outer diameter of the drill handle is 2 mm-4 mm, and the outer diameter of the drill bit is 3 mm-6 mm.

Preferably, the length of the drill bit is 10 mm-13 mm, and the total length of the drill handle and the drill bit is 35 mm-40 mm.

Compared with the prior art, the beneficial effects of the utility model are that: through being provided with drill bit, lead bits ditch, drill point, sword back of a blade, fish tail cutting angle and sword cutting edge, be convenient for process the HDI panel, avoid carrying out the in-process of processing to the HDI panel, the HDI panel of processing is protruding about easy and the hole that explodes, leads to its easy formation copper to emit and remains and surface damage, and later stage manual repair will cause the inconvenience that the hole face is coarse.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the drill bit of the present invention;

FIG. 3 is a schematic view of the structure of the scrap-guiding groove of the present invention;

in the figure: 1. a drill shank; 2. a drill bit; 3. a chip guide groove; 4. drilling a tip; 5. cutting a fish tail corner; 6. a blade back; 7. a knife edge zone.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a take drill bit of water conservancy diversion knife face, including drill handle 1, the one end of drill handle 1 is fixed with drill bit 2, two spiral chip guide ditches 3 have been seted up at drill bit 2's surperficial interval, be convenient for discharge the drill chip of drilling in-process, 2 surface forming have two cutting edge areas 7 of drill bit between two chip guide ditches 3, be convenient for cut drilling, 7 outward flanges in two cutting edge areas all are provided with side edge sword back of a blade 6, fishtail cutting angle 5 has been seted up between two cutting edge areas 7, it is protruding to be convenient for form when avoiding HDI panel drilling, the one end difference shaping of two cutting edge areas 7 has drill point 4.

In this embodiment, preferably, the included angle of the fishtail cutting angle 5 is 90 degrees, which facilitates better drilling effect.

In this embodiment, it is preferable that the clearance angle formed between the land 7 and the axis of the drill 2 is 10 degrees, and the clearance angle formed between the other land 7 and the axis of the drill 2 is 45 degrees, so that the drilled hole can be chamfered smoothly.

In this embodiment, the chip guide groove 3 is preferably a helical angle, and the angle of the helical angle is 28-35 degrees, so as to facilitate chip removal.

In the embodiment, the outer diameter of the drill handle 1 is preferably 2 mm-4 mm, and the outer diameter of the drill bit 2 is preferably 3 mm-6 mm, so that the chip removal is facilitated.

In this embodiment, it is preferable that the drill 2 has a length of 10 mm to 13 mm, and the total length of the drill shank 1 and the drill 2 is 35 mm to 40 mm.

The utility model discloses a theory of operation and use flow: when using, two drill points 4 and the HDI panel surface contact who treats drilling carry out cutting drilling to panel through two sword cutting edge 7, and the drill chip of drilling in-process discharges through leading bits ditch 3, cuts angle 5 through two drill points 4 and fish tail and is convenient for avoid single drill point easily to cause the arch on HDI panel surface and explode the hole, causes the copper to emit and remains and surface damage, is convenient for carry out drilling processing to the HDI panel.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take drill bit of water conservancy diversion knife face, includes drill shank (1), its characterized in that: the drill bit is characterized in that a drill bit (2) is fixed at one end of the drill handle (1), two spiral chip guide grooves (3) are formed in the surface of the drill bit (2) at intervals, two cutter blade zones (7) are formed in the surface of the drill bit (2) between the two chip guide grooves (3), lateral edge cutter blade backs (6) are arranged on the outer edges of the two cutter blade zones (7), a fish tail cutting angle (5) is formed between the two cutter blade zones (7), and drill tips (4) are formed at one ends of the two cutter blade zones (7) respectively.

2. The drill with the flow guiding cutter face of claim 1, which is characterized in that: the included angle of the fish tail cutting angle (5) is 90 degrees.

3. The drill with the flow guiding cutter face of claim 1, which is characterized in that: the clearance angle formed between the cutting edge zone (7) and the axis of the drill bit (2) is 10 degrees, and the clearance angle formed between the other cutting edge zone (7) and the axis of the drill bit (2) is 45 degrees.

4. The drill with the flow guiding cutter face of claim 1, which is characterized in that: the chip guide groove (3) is a spiral angle, and the angle of the spiral angle is 28-35 degrees.

5. The drill with the flow guiding cutter face of claim 1, which is characterized in that: the outer diameter of the drill handle (1) is 2 mm-4 mm, and the outer diameter of the drill bit (2) is 3 mm-6 mm.

6. The drill with the flow guiding cutter face of claim 1, which is characterized in that: the length of the drill bit (2) is 10 mm-13 mm, and the total length of the drill handle (1) and the drill bit (2) is 35 mm-40 mm.