CN205414517U - Minor diameter high -speed steel covering rimer - Google Patents
Minor diameter high -speed steel covering rimer Download PDFInfo
- Publication number
- CN205414517U CN205414517U CN201520967892.2U CN201520967892U CN205414517U CN 205414517 U CN205414517 U CN 205414517U CN 201520967892 U CN201520967892 U CN 201520967892U CN 205414517 U CN205414517 U CN 205414517U
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- CN
- China
- Prior art keywords
- angle
- rimer
- minor diameter
- speed steel
- diameter high
- 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
- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 12
- 230000036461 convulsion Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 210000000744 eyelid Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019589 hardness Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a minor diameter high -speed steel covering rimer, including rimer and cutter arbor, the rimer entad the angle be 0 45 /, the cutting edge inclination is 5, the anterior angle is 12, the relief angle is 12, the groove angle is 50, the circumference is equipped with two 30 phi 3mm's lightening core outside the cutting edge portion. The processing hole of aluminium alloy material's thin wall covering can be processed to this covering rimer, has reduced the friction on back knife face and smear metal surface, reduces the cutting temperature that the friction leads to, is favorable to the chip breaking to be discharged, and high pressure heater work efficiency rate and processingquality are carried to the machining precision in assurance rate thin wall covering hole.
Description
Technical field
This utility model relates to a kind of minor diameter high-speed steel enveloped counter bit, belongs to tool sharpening field.
Background technology
In machining, the processing that commonly used drill bit, reamer and reamer are carried out, the most commonly used various counterbit carries out the processing of chamfering, end face and counter boring, but at aviation field, it is frequently necessary to process the processing in aluminium alloy thin-walled eyelid covering hole, due to thin-walled skin typically at about 1.5mm, existing hole machined instrument cannot ensure the crudy in its hole.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of minor diameter high-speed steel enveloped counter bit, it is achieved that the processing to aluminium alloy thin-walled eyelid covering hole.
For solving problem above, concrete technical scheme of the present utility model is as follows: a kind of minor diameter high-speed steel enveloped counter bit, including counterbit and knife bar, the centripetal angle of counterbit is 0 ° 45 ', cutting edge inclination is 5 °, and anterior angle is 12 °, and relief angle is 12 °, groove angle is 50 °, and blade part excircle is provided with the lightening core of two 30 ° of Φ 3mm.Anterior angle is 12 °, and cutting edge is sharp, and machinability is good, relief angle is 12 °, decreases the friction of rear knife face and chip surface, reduces the cutting temperature that friction causes, decrease the cutting resistance caused because of frictional force, it is ensured that cutting tooth has enough cutting hardnesses, and cutting edge inclination is 5 °, cutter is easily worked, and groove angle is 50 °, increases appearance bits and chip space, chip can discharge major part from side, chip removal is effective, and centripetal angle is 0 ° 45 ', reduces the frictional force during using.
Preferably, described counterbit afterbody is provided with 1:50 internal taper hole.
Preferably, described knife bar is made up of leader, tapered portion and caudal peduncle part, and tapered portion is corresponding with the taper hole angle of counterbit.
Preferably, described leader relative to the jerk value of caudal peduncle part cylindrical in 0.02mm.
What this utility model brought has the beneficial effect that this enveloped counter bit can process the processing hole of the thin-walled skin of aluminum alloy materials, decrease the friction of rear knife face and chip surface, reduce the cutting temperature that friction causes, chip breaking is conducive to discharge, the machining accuracy in fraction thin-walled skin hole, improves working (machining) efficiency and crudy.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of minor diameter high-speed steel enveloped counter bit.
Fig. 2 is the structural representation of drill bit.
Fig. 3 is Fig. 2 A-A sectional view.
Fig. 4 is Fig. 2 B-B sectional view.
Fig. 5 is the structural representation of knife bar.
Wherein, 1-counterbit, 2-knife bar, 3-caudal peduncle part, the centripetal angle of 4-, 5-cutting edge inclination, 6-anterior angle, 7-relief angle, 8-groove angle, 9-lightening core, 10-internal taper hole, 11-leader, 12-tapered portion.
Detailed description of the invention
As Figure 1-Figure 4, a kind of minor diameter high-speed steel enveloped counter bit, including counterbit 1 and knife bar 2, the centripetal angle of counterbit 14 is 0 ° 45 ', and cutting edge inclination 5 is 5 °, and anterior angle 6 is 12 °, relief angle 7 is 12 °, and groove angle 8 is 50 °, and blade part excircle is provided with the lightening core 9 of two 30 ° of Φ 3mm.
Preferably, described counterbit 1 afterbody is provided with 1:50 internal taper hole 10.
Preferably, described knife bar 2 is made up of leader 11, tapered portion 12 and caudal peduncle part 3, and tapered portion 12 is corresponding with internal taper hole 10 angle of counterbit 1.
Preferably, described leader 11 relative to the jerk value of caudal peduncle part 3 cylindrical in 0.02mm.
Above-described is only preferred embodiment of the present utility model.It should be pointed out that, for the person of ordinary skill of the art, on the premise of without departing from this utility model principle, it is also possible to make some modification and improvement, also should be regarded as belonging to protection domain of the present utility model.
Claims (4)
1. a minor diameter high-speed steel enveloped counter bit, including counterbit and knife bar, it is characterised in that: the centripetal angle of counterbit is 0 ° 45 ', and cutting edge inclination is 5 °, and anterior angle is 12 °, and relief angle is 12 °, and groove angle is 50 °, and blade part excircle is provided with the lightening core of two 30 ° of Φ 3mm.
2. minor diameter high-speed steel enveloped counter bit as claimed in claim 1, it is characterised in that: described counterbit afterbody is provided with 1:50 internal taper hole.
3. minor diameter high-speed steel enveloped counter bit as claimed in claim 1, it is characterised in that: described knife bar is made up of leader, tapered portion and caudal peduncle part, and tapered portion is corresponding with the taper hole angle of counterbit.
4. minor diameter high-speed steel enveloped counter bit as claimed in claim 3, it is characterised in that: described leader relative to the jerk value of caudal peduncle part cylindrical in 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967892.2U CN205414517U (en) | 2015-11-30 | 2015-11-30 | Minor diameter high -speed steel covering rimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967892.2U CN205414517U (en) | 2015-11-30 | 2015-11-30 | Minor diameter high -speed steel covering rimer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205414517U true CN205414517U (en) | 2016-08-03 |
Family
ID=56536493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520967892.2U Expired - Fee Related CN205414517U (en) | 2015-11-30 | 2015-11-30 | Minor diameter high -speed steel covering rimer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205414517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746490A (en) * | 2018-12-28 | 2019-05-14 | 广东鸿泰科技股份有限公司 | A kind of cutting tool of hollow mold insert sticking to mould |
-
2015
- 2015-11-30 CN CN201520967892.2U patent/CN205414517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746490A (en) * | 2018-12-28 | 2019-05-14 | 广东鸿泰科技股份有限公司 | A kind of cutting tool of hollow mold insert sticking to mould |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20201130 |