CN204504309U - A kind of quick drill bit - Google Patents
A kind of quick drill bit Download PDFInfo
- Publication number
- CN204504309U CN204504309U CN201520002730.5U CN201520002730U CN204504309U CN 204504309 U CN204504309 U CN 204504309U CN 201520002730 U CN201520002730 U CN 201520002730U CN 204504309 U CN204504309 U CN 204504309U
- Authority
- CN
- China
- Prior art keywords
- blade
- drill body
- chip pocket
- iron filings
- drill bit
- 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
The utility model relates to a kind of quick drill bit, comprise drill body, the leading section that this drill body comprises rearward end and is connected with blade, the leading section of drill body is provided with multiple chip pocket, insert groove drill body being provided with and being square is positioned in the end of this chip pocket, the blade corresponding with its shape is mounted with in this insert groove, the surface of the leading section of drill body is coated with wear-resistant coating, and the coverage rate of wear-resistant coating in drill body end at least comprises chip pocket and be positioned at the cell wall that blade side contacts with iron filings; This quick drill bit is when cutting iron filings, the iron filings of cutting are that splayed is separated by the first arcwall face of knife-blade and the second arcwall face, iron filings separately impinge upon on the cell wall of blade side chip pocket, iron filings after breaking are along chip pocket landing, because the surface of the leading section at drill body is coated with wear-resistant coating, the iron filings that wear-resistant coating effectively prevent cutting puncture the cell wall of chip pocket, extend the service life of drill bit.
Description
Technical field
The utility model relates to a kind of quick drill bit.
Background technology
In recent years, in the machine tool of such as machining center etc., the full-automatic mechanical that not employment just can carry out processing has become main flow, so the drill bit corresponding with full-automatic mechanical is developed in a large number and sold.The drill insert that drill bit generally includes handle of a knife, cutter hub and attaches on cutter hub, the form of handle of a knife normally round bar, cutter hub is general cylindrical shape, is formed with the chip area for discharging the chip that drilling produces above it.Cutter hub generally comprises the second end of first end and the attachment drill insert being connected to handle of a knife, the second end of cutter hub is provided with groove, for settling drill insert.
Present drill bit as shown in Figure 1, mainly comprise handle of a knife 1a, cutter hub 2a, cutter hub 2a is provided with chip area 3a, drill bit is in the process of rotating, first the iron filings that drill insert cutting metal produces contact with the contact surface 4a on chip area 3a, after iron filings are subject to the stop of contact surface 4a, the iron filings broken are along chip area 3a landing, because iron filings are cut backwardness from workpiece, speed is higher, if drill bit Long-Time Service, the contact surface 4a of present flute of drill is easy to be punctured by iron filings, and most drill bit is all cause scrapping because chip area 3a is breakdown.
Utility model content
The purpose of this utility model is the defect in order to solve in prior art existing for drill bit, provides one to prevent discharge launder breakdown and cuts quick drill bit smoothly.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of quick drill bit, comprise drill body, the leading section that this drill body comprises rearward end and is connected with blade, the leading section of described drill body is provided with multiple chip pocket, the insert groove described drill body being provided with and being square is positioned in the end of this chip pocket, the blade corresponding with its shape is mounted with in this insert groove, the surface of the leading section of described drill body is coated with wear-resistant coating, and the coverage rate of wear-resistant coating in drill body end at least comprises chip pocket and be positioned at the cell wall that described blade side contacts with iron filings; The corner place of described blade with arc angle, with curved blade on the surrounding side face of blade.
Above-mentioned a kind of quick drill bit, described curved blade is made up of the first arcwall face connected and the second arcwall face, and the first arcwall face and the second arcwall face evagination, two arcwall faces become obtuse angle to extend each other.
Above-mentioned a kind of quick drill bit, the cell wall of described insert groove is provided with the arcwall face corresponding with described curved blade.
The beneficial effects of the utility model are: this quick drill bit is when cutting iron filings, the iron filings of cutting are that splayed is separated by the first arcwall face of knife-blade and the second arcwall face, iron filings separately impinge upon on the cell wall of blade side chip pocket, iron filings after breaking are along chip pocket landing, because the surface of the leading section at drill body is coated with wear-resistant coating, the coverage rate of wear-resistant coating in drill body end at least comprises chip pocket and is positioned at the cell wall that blade side contacts with iron filings, the iron filings that wear-resistant coating effectively prevent cutting puncture the cell wall of chip pocket, extend the service life of drill bit.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing drill bit;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of the utility model blade.
Detailed description of the invention
Further understand for making to have architectural feature of the present utility model and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 2, a kind of quick drill bit, comprise drill body 1, the leading section 3 that this drill body comprises rearward end 2 and is connected with blade, the leading section 3 of drill body is provided with multiple chip pocket 4, the insert groove 5 drill body 1 being provided with and being square is positioned in the end of this chip pocket 4, the blade 6 corresponding with its shape is mounted with in this insert groove, the surface of the leading section 3 of drill body is coated with wear-resistant coating 7, and the coverage rate of wear-resistant coating 7 in drill body end at least comprises chip pocket 4 and be positioned at the cell wall that blade 6 side contacts with iron filings;
As shown in Figure 3, the corner place of blade 6 is with arc angle 61, with curved blade on the surrounding side face of blade, curved blade is made up of the first arcwall face 62 connected and the second arcwall face 63, first arcwall face 62 and the second arcwall face 63 evagination, two arcwall faces become obtuse angle to extend each other, and the cell wall of insert groove 5 is provided with the arcwall face corresponding with curved blade.
This quick drill bit is when cutting iron filings, due to the first arcwall face 62 and the second arcwall face 63 evagination, two arcwall faces become obtuse angle to extend each other, the iron filings of cutting are that splayed is separated by the first arcwall face 62 of knife-blade and the second arcwall face 63, be convenient to bits smooth and easy, iron filings separately impinge upon on the cell wall of blade side chip pocket 4, iron filings after breaking are along chip pocket 4 landing, surface due to the leading section at drill body is coated with wear-resistant coating 7, the coverage rate of wear-resistant coating 7 in drill body end at least comprises chip pocket 4 and is positioned at the cell wall that blade side contacts with iron filings, the iron filings that wear-resistant coating effectively prevent cutting puncture the cell wall of chip pocket, extend the service life of drill bit.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and description; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (3)
1. a quick drill bit, comprise drill body, the leading section that this drill body comprises rearward end and is connected with blade, the leading section of described drill body is provided with multiple chip pocket, the insert groove described drill body being provided with and being square is positioned in the end of this chip pocket, the blade corresponding with its shape is mounted with in this insert groove, it is characterized in that, the surface of the leading section of described drill body is coated with wear-resistant coating, and the coverage rate of wear-resistant coating in drill body end at least comprises chip pocket and be positioned at the cell wall that described blade side contacts with iron filings; The corner place of described blade with arc angle, with curved blade on the surrounding side face of blade.
2. a kind of quick drill bit according to claim 1, is characterized in that, described curved blade is made up of the first arcwall face connected and the second arcwall face, and the first arcwall face and the second arcwall face evagination, two arcwall faces become obtuse angle to extend each other.
3. a kind of quick drill bit according to claim 1, is characterized in that, the cell wall of described insert groove is provided with the arcwall face corresponding with described curved blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002730.5U CN204504309U (en) | 2015-01-05 | 2015-01-05 | A kind of quick drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520002730.5U CN204504309U (en) | 2015-01-05 | 2015-01-05 | A kind of quick drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504309U true CN204504309U (en) | 2015-07-29 |
Family
ID=53702314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520002730.5U Expired - Fee Related CN204504309U (en) | 2015-01-05 | 2015-01-05 | A kind of quick drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999866A (en) * | 2018-08-13 | 2018-12-14 | 宜兴市怡光环保机械有限公司 | One kind is anti-to break through high-penetration rate flooring nail |
-
2015
- 2015-01-05 CN CN201520002730.5U patent/CN204504309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999866A (en) * | 2018-08-13 | 2018-12-14 | 宜兴市怡光环保机械有限公司 | One kind is anti-to break through high-penetration rate flooring nail |
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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: 20150729 Termination date: 20160105 |