CN202155576U - Drill head - Google Patents
Drill head Download PDFInfo
- Publication number
- CN202155576U CN202155576U CN2011202714192U CN201120271419U CN202155576U CN 202155576 U CN202155576 U CN 202155576U CN 2011202714192 U CN2011202714192 U CN 2011202714192U CN 201120271419 U CN201120271419 U CN 201120271419U CN 202155576 U CN202155576 U CN 202155576U
- Authority
- CN
- China
- Prior art keywords
- blade
- shank
- handle part
- drill head
- 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
Links
Abstract
The utility model provides a drill head capable of prolonging the service life in the premise of ensuring good cutting performance, comprising a handle part and a blade part, characterized in that: the handle part is made of a high-speed steel and the blade part is made of a hard alloy and fixedly connected with the handle part. The blade part of the hard alloy can ensure good cutting performance, the handle part of the high-speed steel can make the whole drill head with a certain toughness, so as to reduce or eliminate the shock generated during the processing course, therefore the process accuracy at the bad condition is increased and the accuracy of the workpiece and the service life of the cutter is ensured. The service life of the drill head is prolonged by changing the material of the handle part and the blade part in the premise of ensuring good cutting performance, therefore the service cost of the cutter is reduced.
Description
Technical field
The utility model belongs to cutter manufacturing technology field, specially refers to a kind of drill bit.
Background technology
Drill bit with an important component part in the cutter, is mainly used the roughing with the hole as machining.Along with the development of mechanical industry, the consumption of drill bit grows with each passing day, especially the major diameter drill bit.But the price of bar rises steadily, and has brought huge cost pressure to processing industry.Existing drill bit generally all is a whole hard alloy, though carbide alloy has higher hardness, can satisfy the requirement of processing relatively hard materials, and its toughness is relatively poor, in process, if bigger vibrations are arranged, cutter and part is scrapped.
The utility model content
The purpose of the utility model is to propose a kind of drill bit, can under the prerequisite that guarantees its good cutting ability, prolong its service life.
The drill bit of the utility model comprises shank and blade, and key is that said shank adopts high-speed steel to process, and said blade adopts carbide alloy to process, and said shank is fixedly connected with blade.
The blade of carbide alloy can guarantee that it has good cutting ability; The shank of high-speed steel makes drill bit integral body have certain toughness; Can reduce or eliminate the vibrations that in process, produce, thereby improve its machining accuracy under mal-condition, guarantee workpiece accuracy and cutter life.
Further, the end of said shank is provided with anti-rotation groove radially, and said blade is provided with the radially boss that cooperates with said anti-rotation groove, and said boss is connected in the anti-rotation groove.Anti-rotation groove and boss cooperate, and shank and blade are rotated synchronously, reduce rotary action power between the two, and then can prevent that both from separating.
Further, said shank and blade welding are fixing, and be fixing reliable.
The drill bit of the utility model, prolongs its service life, thereby has reduced the use cost of cutter under the prerequisite that guarantees its good cutting ability through changing the material of shank and blade.
Description of drawings
Fig. 1 is the structural representation of the drill bit of the utility model.
Among the figure: 1, shank; 2, blade.
The specific embodiment
Contrast accompanying drawing below; Through description, the effect of the mutual alignment between the shape of the specific embodiment of the utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify to embodiment.
Embodiment 1:
As shown in Figure 1, the drill bit of present embodiment comprises shank 1 and blade 2, and shank 1 adopts high-speed steel to process, and blade 2 adopts carbide alloy to process, and shank 1 is fixing with blade 2 welding.
The end of shank 1 is provided with anti-rotation groove radially, and blade is provided with the radially boss that cooperates with anti-rotation groove, and boss is connected in the anti-rotation groove.Anti-rotation groove and boss cooperate, and shank 1 and blade are rotated synchronously, reduce rotary action power between the two, and then can prevent that both from separating (anti-rotation groove and boss do not draw among the figure).
The blade of carbide alloy can guarantee that it has good cutting ability; The shank of high-speed steel makes drill bit integral body have certain toughness; Can reduce or eliminate the vibrations that in process, produce, thereby improve its machining accuracy under mal-condition, guarantee workpiece accuracy and cutter life.
Claims (3)
1. a drill bit comprises shank and blade, it is characterized in that said shank adopts high-speed steel to process, and said blade adopts carbide alloy to process, and said shank is fixedly connected with blade.
2. drill bit according to claim 1 is characterized in that the end of said shank is provided with anti-rotation groove radially, and said blade is provided with the radially boss that cooperates with said anti-rotation groove, and said boss is connected in the anti-rotation groove.
3. drill bit according to claim 1 and 2 is characterized in that the welding of said shank and blade is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202714192U CN202155576U (en) | 2011-07-28 | 2011-07-28 | Drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202714192U CN202155576U (en) | 2011-07-28 | 2011-07-28 | Drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155576U true CN202155576U (en) | 2012-03-07 |
Family
ID=45763225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202714192U Expired - Fee Related CN202155576U (en) | 2011-07-28 | 2011-07-28 | Drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202155576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266969A (en) * | 2011-07-28 | 2011-12-07 | 锑玛(苏州)精密工具有限公司 | Drill head |
-
2011
- 2011-07-28 CN CN2011202714192U patent/CN202155576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266969A (en) * | 2011-07-28 | 2011-12-07 | 锑玛(苏州)精密工具有限公司 | Drill head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Assembling and disassembling tool of drill Effective date of registration: 20130201 Granted publication date: 20120307 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: D & M (Suzhou) Precision Cutting Tools Co., Ltd. Registration number: 2013320010003 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20140728 |
|
| EXPY | Termination of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180408 Granted publication date: 20120307 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: D & M (Suzhou) Precision Cutting Tools Co., Ltd. Registration number: 2013320010003 |