CN200974138Y - Reverse countersink drill - Google Patents
Reverse countersink drill Download PDFInfo
- Publication number
- CN200974138Y CN200974138Y CN 200620124970 CN200620124970U CN200974138Y CN 200974138 Y CN200974138 Y CN 200974138Y CN 200620124970 CN200620124970 CN 200620124970 CN 200620124970 U CN200620124970 U CN 200620124970U CN 200974138 Y CN200974138 Y CN 200974138Y
- Authority
- CN
- China
- Prior art keywords
- blade
- cavity
- wing
- reverse
- counter boring
- 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
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A reverse countersink drill is provided, wherein the head of a cutter body is provided with a cavity, a rotary type cutter blade arranged on a pin shaft is arranged in the cavity, and a blade pressed by a pressing plate and a screw is arranged on the cutter blade. The utility model is used for counter boring processing, when stopping using, the wing blade draws in the cavity, and during the counter boring, the wing is automatic under centrifugal force effect and opens, and is easy and simple to handle, and work efficiency is high, and blade installation sharpening is convenient, and the counter boring scope is wider, uses reliably.
Description
Technical field
The utility model relates to a kind of machine tool, in particular for the reverse counterbit of spot-facing processing.
Background technology
When machining box-type workpieces, usually need to carry out spot-facing from the back side in hole, the reverse counterbit of a kind of shell type commonly used in the past need load and unload cutter No. one time with hole of the every ream of this counterbit, add not only to bother man-hour, and efficient is low.
The utility model content
It is a kind of easy to use, reliable that the purpose of this utility model is to provide, the reverse counterbit that can increase work efficiency.
The technical solution of the utility model is: reverse counterbit, comprise cutter hub, blade, and improvements are that the head of described cutter hub has a cavity, are provided with the rotary type wing that is contained on the bearing pin in the cavity, described blade is contained on the wing.
Above-mentioned blade by pressing plate, screw in compression on wing.
When the utility model uses, cutter head body is inserted pilot hole, wing and blade rotate around bearing pin automatically and draw in cavity, and contact with the side step of cavity, and the center of gravity plumb line of wing, blade is positioned at a side that deviates from the cavity side step of bearing pin at this moment.After the wing blade passes through pilot hole, open drilling machine, the wing blade opens under centrifugal action automatically, and contact with cavity bottom and locate, and this moment, blade stretched out outside the cutter hub, and cutting edge makes progress, and is in the operating position, just can carry out spot-facing.Spot-facing finishes, and closes drilling machine, and with the wing closure, cutter hub withdraws from outside the hole, finishes spot-facing one time.Each spot-facing needn't load and unload cutter at every turn, and is easy and simple to handle, improves work efficiency.Blade is installed, sharpening is convenient, and the spot-facing scope is wider, uses reliable.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
As figure, the head of cutter hub 1 has a cavity 2, is provided with the rotary type wing 7 that is contained on the bearing pin 6 in the cavity, blade 3 is pressed on the wing by pressing plate 4, screw 5, wing, the open configuration when blade is in spot-facing among the figure, at this moment, blade stretches out outside the cutter hub, and cutting edge makes progress, and wing contacts with cavity bottom.After spot-facing finishes,, lean against on the cavity side step wing blade income cavity.
Claims (2)
1, a kind of reverse counterbit comprises cutter hub, blade, it is characterized in that the head of described cutter hub has a cavity, is provided with the rotary type wing that is contained on the bearing pin in the cavity, and described blade is contained on the wing.
2, by the described reverse counterbit of claim 1, it is characterized in that described blade by pressing plate, screw in compression on wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124970 CN200974138Y (en) | 2006-10-31 | 2006-10-31 | Reverse countersink drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124970 CN200974138Y (en) | 2006-10-31 | 2006-10-31 | Reverse countersink drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200974138Y true CN200974138Y (en) | 2007-11-14 |
Family
ID=38900432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620124970 Expired - Fee Related CN200974138Y (en) | 2006-10-31 | 2006-10-31 | Reverse countersink drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200974138Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856751A (en) * | 2010-05-21 | 2010-10-13 | 天津赛瑞机器设备有限公司 | Reverse scribing cutter for machining reverse sides of hole type parts |
| CN103764047A (en) * | 2011-03-11 | 2014-04-30 | 史密夫和内修有限公司 | Cutting instrument |
| CN108247141A (en) * | 2018-03-17 | 2018-07-06 | 江苏神通阀门股份有限公司 | A kind of anti-spot facing quick processing device of flange hole |
-
2006
- 2006-10-31 CN CN 200620124970 patent/CN200974138Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856751A (en) * | 2010-05-21 | 2010-10-13 | 天津赛瑞机器设备有限公司 | Reverse scribing cutter for machining reverse sides of hole type parts |
| CN103764047A (en) * | 2011-03-11 | 2014-04-30 | 史密夫和内修有限公司 | Cutting instrument |
| CN103764047B (en) * | 2011-03-11 | 2016-10-19 | 史密夫和内修有限公司 | Cutting apparatus |
| CN108247141A (en) * | 2018-03-17 | 2018-07-06 | 江苏神通阀门股份有限公司 | A kind of anti-spot facing quick processing device of flange hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |