CN202155576U - Drill head - Google Patents

Drill head Download PDF

Info

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
Application number
CN2011202714192U
Other languages
Chinese (zh)
Inventor
李振丰
孔小波
周东阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D & M (suzhou) Precision Cutting Tools Co Ltd
Original Assignee
D & M (suzhou) Precision Cutting Tools Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by D & M (suzhou) Precision Cutting Tools Co Ltd filed Critical D & M (suzhou) Precision Cutting Tools Co Ltd
Priority to CN2011202714192U priority Critical patent/CN202155576U/en
Application granted granted Critical
Publication of CN202155576U publication Critical patent/CN202155576U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

A kind of drill bit
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.
CN2011202714192U 2011-07-28 2011-07-28 Drill head Expired - Fee Related CN202155576U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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