CN202479565U - Chamfering drill - Google Patents
Chamfering drill Download PDFInfo
- Publication number
- CN202479565U CN202479565U CN2012201062603U CN201220106260U CN202479565U CN 202479565 U CN202479565 U CN 202479565U CN 2012201062603 U CN2012201062603 U CN 2012201062603U CN 201220106260 U CN201220106260 U CN 201220106260U CN 202479565 U CN202479565 U CN 202479565U
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- chamfering
- chamfering drill
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- bored
- model
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Abstract
The utility model provides a chamfering drill capable of improving the cutting performance and service life of the chamfering drill so as to improve the processing quality. The chamfering drill disclosed by the utility model comprises a handle section and an edge section, wherein the edge section is provided with a parabola-shaped groove along the axial direction to form an end edge and a side edge. The chamfering drill is characterized in that the bottom of the parabola-shaped groove adopts circular arc transition, so a tool does not crack due to overlarge chip removal resistance and the service life of the bit can be improved. The chamfering drill disclosed by the utility model can improve the service life and machining precision of the chamfering drill by increasing an anterior angle and the thickness of a core, thereby improving the processing quality and reducing the use cost of the tool.
Description
Technical field
The utility model belongs to cutter manufacturing technology field, specially refers to a kind of chamfering and bores.
Background technology
The chamfering brill with an important component part in the cutter, is mainly used in the aperture chamfering as machining.Along with the development of mechanical industry, requirements at the higher level have all been proposed the delivery date of crudy, process reliability, working (machining) efficiency and cutter that the user bores chamfering etc.It is smaller that the chamfering of traditional design is bored eccentric throw, anterior angle less (being generally between 5 °～8 °), and the joint of end sword and side edge is stressed bigger, and cutting resistance is bigger, bursts apart easily.
In addition, the chip area that bores of traditional chamfering is crossed can influence intensity that chamfering bores and chip removal performance deeply easily because of stressed excessive bursting apart.
The utility model content
The purpose of the utility model is to propose a kind of chamfering to bore, and can improve cutting ability and service life that chamfering is bored, thereby improve crudy.
The chamfering of the utility model is bored and is comprised shank and blade; Blade offers parabola shaped groove vertically to form end sword and side edge; Key is that the bottom land of said parabola shaped groove is an arc transition, so just can not improve the service life of drill bit because of the excessive cutter that makes of chip removal resistance bursts apart.
Further, the anterior angle that above-mentioned chamfering is bored is 10 °～20 °, has reduced its cutting resistance, and cutting speed is faster.Efficient is higher.And improve the precision of its processing work.
Further, said core thickness of drilling bit is 0.35～0.45 times of outside diameter, and it has higher intensity the thick assurance of bigger core, more helps high-speed cutting and fast feed, has determined chamfering to bore higher crudy and working (machining) efficiency.
The chamfering of the utility model drilled through the increase anterior angle and core thick, can improve service life and machining accuracy that chamfering is bored, thereby improve crudy, reduce the use cost of cutter.
Description of drawings
Fig. 1 is the structural representation that the chamfering of the utility model is bored.
Fig. 2 is the blade structural representation that the chamfering of the utility model is bored.
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 chamfering of present embodiment is bored and is comprised shank 3 and blade 1.Blade 1 offers parabola shaped chip pocket 2 to form end sword and side edge, and the bottom land of chip pocket 2 is an arc transition, so just can not burst apart because of the excessive cutter that makes of chip removal resistance.
As shown in Figure 2, the anterior angle 4 that above-mentioned chamfering is bored is 15 °, has reduced its cutting resistance, and cutting speed is faster.Efficient is higher.And improve the precision of its processing work.
Core thickness of drilling bit 5 is 0.35-0.45 a times of outside diameter, and it has higher intensity the thick assurance of bigger core, more helps high-speed cutting and fast feed, has determined chamfering to bore higher crudy and working (machining) efficiency.
It has higher intensity the thick assurance of big core, more helps high-speed cutting and fast feed, has determined chamfering to bore higher crudy and working (machining) efficiency.The higher life-span is arranged, reduce production costs greatly.
Claims (3)
1. a chamfering is bored, and comprises shank and blade, and blade offers parabola shaped groove vertically to form end sword and side edge, it is characterized in that the bottom land of said parabola shaped groove adopts arc transition.
2. chamfering according to claim 1 is bored, and it is characterized in that the anterior angle that this chamfering is bored is 10 °～20 °.
3. chamfering according to claim 1 and 2 is bored, and it is characterized in that said core thickness of drilling bit is 0.35～0.45 times of outside diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062603U CN202479565U (en) | 2012-03-21 | 2012-03-21 | Chamfering drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062603U CN202479565U (en) | 2012-03-21 | 2012-03-21 | Chamfering drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479565U true CN202479565U (en) | 2012-10-10 |
Family
ID=46954026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201062603U Expired - Fee Related CN202479565U (en) | 2012-03-21 | 2012-03-21 | Chamfering drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581352A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Chamfering drill |
-
2012
- 2012-03-21 CN CN2012201062603U patent/CN202479565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581352A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Chamfering drill |
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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: Chamfering drill Effective date of registration: 20130201 Granted publication date: 20121010 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160321 |
|
| 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: 20121010 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: D & M (Suzhou) Precision Cutting Tools Co., Ltd. Registration number: 2013320010003 |