CN201913285U - Universal tipped drill bit - Google Patents
Universal tipped drill bit Download PDFInfo
- Publication number
- CN201913285U CN201913285U CN2010206333706U CN201020633370U CN201913285U CN 201913285 U CN201913285 U CN 201913285U CN 2010206333706 U CN2010206333706 U CN 2010206333706U CN 201020633370 U CN201020633370 U CN 201020633370U CN 201913285 U CN201913285 U CN 201913285U
- Authority
- CN
- China
- Prior art keywords
- trapezoidal
- drill bit
- cutting tip
- trapezoidal cutting
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drilling Tools (AREA)
Abstract
A universal tipped drill bit relates to a drill bit, and aims to solve the problems in the currently used drill bit that the positioning accuracy is low, the life service of a blade is short, and the manufacture cost is increased. The universal tipped drill bit further comprises a first trapezoidal cutting blade and a second trapezoidal cutting blade, first cuttings chutes are respectively formed on two end surfaces of the first trapezoidal cutting blade, each first cuttings chute is arranged along one sloping side of the trapezoid, second cuttings chutes are respectively formed on two end surfaces of the second trapezoidal cutting blade, each first cuttings chute is arranged along one sloping side of the trapezoid, the first trapezoidal cutting blade and the second trapezoidal cutting blade are symmetrically arranged along the central axis of a drill bit body and are detachably connected with the drill bit body, the lower bottom of the first trapezoidal cutting blade is in the same line with the outer edge of a central blade, the lower bottom of the second trapezoidal cutting blade is on the same line with the outer edge of a trapezoidal outer edge blade, and a drill core traverse edge is formed on the central blade. The universal tipped drill bit can be used with drilling tools.
Description
Technical field
The utility model relates to a kind of drill bit.
Background technology
June 15 2005 Granted publication day, Granted publication, the drill bit of this patent record was located trapezoidal center insert with centre bore and oblique angle locating slot at the top of drill body number for the utility model patent of CN2704438Y discloses a kind of centre bore location combination D-bit; With screw and through hole center insert is locked, trapezoidal outer rim insert retention is fixed in another skew angle locating slot again.Though this patent has solved the problem that drill body need not polished, do not damaged to drill bit, the drill bit positional accuracy is lower in actual applications, and blade service life is short, because of the cost of blade higher, so the increase manufacturing cost.
The utility model content
The purpose of this utility model provides a kind of general inserted drill, and is lower with the drill bit positional accuracy that solves present use, and blade is short service life, increases the problem of manufacturing cost.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: described drill bit comprises body, center insert and trapezoidal outer rim blade, the top and the center insert of described body are affixed, trapezoidal outer rim blade and body are affixed, described drill bit also comprises the first trapezoidal cutting tip and the second trapezoidal cutting tip, respectively be provided with one first chip area on two end faces of the first trapezoidal cutting tip, each first chip area is along a trapezoidal hypotenuse setting, respectively be provided with one second chip area on two end faces of the second trapezoidal cutting tip, each first chip area is along a trapezoidal hypotenuse setting, the first trapezoidal cutting tip and the second trapezoidal cutting tip are symmetrical arranged along the central axis of body, and the first trapezoidal cutting tip and the second trapezoidal cutting tip are all affixed with body, the first trapezoidal cutting tip go to the bottom outer with center insert on same straight line, the second trapezoidal cutting tip go to the bottom outer with trapezoidal outer rim blade on same straight line, center insert is provided with unbearable chisel edge.
The utlity model has following beneficial effect: blade utilization rate height of the present utility model, when the first trapezoidal cutting tip and the second trapezoidal cutting tip use indexable twice, the rake face reconditioning on a small quantity of the first trapezoidal cutting tip and the second trapezoidal cutting tip, do not influence bore diameter, improve the blade utilization rate, prolonged service life.
Description of drawings
Fig. 1 is the utility model front view, and Fig. 2 is the left view of Fig. 1.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the drill bit of present embodiment comprises body 1, center insert 2 and trapezoidal outer rim blade 3, the top of described body 1 and center insert 2 are affixed, trapezoidal outer rim blade 3 is affixed with body 1, described drill bit also comprises the first trapezoidal cutting tip 4 and the second trapezoidal cutting tip 5, respectively be provided with one first chip area on two end faces of the first trapezoidal cutting tip 4, each first chip area is along a trapezoidal hypotenuse setting, respectively be provided with one second chip area on two end faces of the second trapezoidal cutting tip 5, each first chip area 5 is along a trapezoidal hypotenuse setting, the first trapezoidal cutting tip 4 and the second trapezoidal cutting tip 5 are symmetrical arranged along the central axis of body, and the first trapezoidal cutting tip 4 and the second trapezoidal cutting tip 5 all removably connect with body 1, the first trapezoidal cutting tip 4 go to the bottom outer with center insert 2 on same straight line, the second trapezoidal cutting tip 5 go to the bottom outer with trapezoidal outer rim blade 3 on same straight line, center insert 2 is provided with unbearable chisel edge.
The utility model durability height can be selected the blade of HRC66, HRA89, HRA91 hardness respectively for use according to machine tool accuracy and processing stable condition, guaranteeing that blade does not rupture, thereby improves the durability of blade.The utility model manufacturing processing technic is good, and numerical control manufacturing programming is convenient and simple, is convenient to industrialization, commercialization.The first trapezoidal cutting tip 4 is close with the turning insert price with the second trapezoidal cutting tip 5, is convenient to promote the use of.The utility model is selected the first trapezoidal cutting tip 4 and the second trapezoidal cutting tip 5 for use, guarantees the cutting equilibrium of forces, guarantees that chip removal is smooth.
The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the drill bit of present embodiment comprises that also first guide pad 6 and second guide pad, 7, the first trapezoidal cutting tips 4 and first guide pad 6 are affixed, and the second trapezoidal cutting tip 5 and second guide pad 7 are affixed.This structure is played a supporting role when the utility model cutting endoporus.Other compositions and annexation are identical with the specific embodiment one.
Claims (2)
1. general inserted drill, described drill bit comprises body (1), center insert (2) and trapezoidal outer rim blade (3), the top of described body (1) and center insert (2) are affixed, trapezoidal outer rim blade (3) is affixed with body (1), it is characterized in that described drill bit also comprises the first trapezoidal cutting tip (4) and the second trapezoidal cutting tip (5), center insert (2) and trapezoidal outer rim blade (3) are made one, respectively be provided with one first chip area on two end faces of the first trapezoidal cutting tip (4), each first chip area is along a trapezoidal hypotenuse setting, respectively be provided with one second chip area on two end faces of the second trapezoidal cutting tip (5), each first chip area (5) is along a trapezoidal hypotenuse setting, the first trapezoidal cutting tip (4) and the second trapezoidal cutting tip (5) are symmetrical arranged along the central axis of body, and the first trapezoidal cutting tip (4) and the second trapezoidal cutting tip (5) all removably connect with body (1), the first trapezoidal cutting tip (4) go to the bottom outer with center insert (2) on same straight line, the second trapezoidal cutting tip (5) go to the bottom outer with trapezoidal outer rim blade (3) on same straight line, center insert (2) is provided with unbearable chisel edge.
2. according to the described a kind of general inserted drill of claim 1, it is characterized in that described drill bit also comprises first guide pad (6) and second guide pad (7), first guide pad (6) and second guide pad (7) are packed in all that body (1) is gone up and are symmetrical arranged along the central axis of body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206333706U CN201913285U (en) | 2010-11-30 | 2010-11-30 | Universal tipped drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206333706U CN201913285U (en) | 2010-11-30 | 2010-11-30 | Universal tipped drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201913285U true CN201913285U (en) | 2011-08-03 |
Family
ID=44413101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206333706U Expired - Fee Related CN201913285U (en) | 2010-11-30 | 2010-11-30 | Universal tipped drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201913285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672246A (en) * | 2012-05-23 | 2012-09-19 | 上海嘉仕久企业发展有限公司 | U-shaped driller for drilling multilayer plate |
| CN113118517A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
-
2010
- 2010-11-30 CN CN2010206333706U patent/CN201913285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672246A (en) * | 2012-05-23 | 2012-09-19 | 上海嘉仕久企业发展有限公司 | U-shaped driller for drilling multilayer plate |
| CN113118517A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |