CN204108426U - The two angle counterbit of a kind of steel alloy - Google Patents
The two angle counterbit of a kind of steel alloy Download PDFInfo
- Publication number
- CN204108426U CN204108426U CN201420527449.9U CN201420527449U CN204108426U CN 204108426 U CN204108426 U CN 204108426U CN 201420527449 U CN201420527449 U CN 201420527449U CN 204108426 U CN204108426 U CN 204108426U
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- angle
- drill bit
- counterbit
- steel alloy
- 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
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Abstract
The utility model relates to the two angle counterbit of a kind of steel alloy, comprise guide shaft, drill bit and handle, drill bit excircle is provided with the different cutting edge of the angle of wedge I and cutting edge II, cutting edge I and cutting edge II in same plane in obtuse angle, cutting edge II one end is connected with cutting edge I, the other end is provided with blade, the axis being parallel of blade and drill bit and being arranged on the outer circumference surface of drill bit.The cutting edge of two different angles can control the height of bolt head while ensureing bolt head size, ensures that bolt is installed rear product and reached necessary requirement, improves Product Precision.
Description
Technical field
The utility model relates to a kind of counterbit, is particularly useful for, to there being the countersunk bolt of special size requirement to carry out spot-facing, belonging to machining and transporation by plane field.
Background technology
At present, Titanium Alloy Aircraft and other Hardmetal materials structural members a large amount of use countersunk bolt in assembling process carries out the connection between structural member, especially aircraft outer edge has the position of pneumatic tolerances all to adopt this connected mode, but there is the nonstandard phenomenon of bolt head in countersunk bolt in a large number, with traditional counterbit to after being connected part spot-facing, when this type of bolt is installed, often occur that countersunk bolt is higher or lower than major defects such as piece surface or bolt dew holes, technology acuracy requirement cannot be reached, have a strong impact on the Aerodynamic Configuration of Aireraft degree of accuracy.
Utility model content
The technical problems to be solved in the utility model is to provide the two angle counterbit of a kind of steel alloy, be specifically designed to and spot-facing is carried out to the non-type bolt of countersunk bolt especially bolt head, both reached designing technique file, and improved again the precision of Aerodynamic Configuration of Aireraft, operating efficiency improves.
For overcoming the above problems, concrete technical scheme of the present utility model is as follows: the two angle counterbit of a kind of steel alloy, comprise guide shaft, drill bit and handle, drill bit excircle is provided with the different cutting edge of the angle of wedge I and cutting edge II, cutting edge I and cutting edge II in same plane in obtuse angle, cutting edge II one end is connected with cutting edge I, and the other end is provided with blade, the axis being parallel of blade and drill bit and being arranged on the outer circumference surface of drill bit.The cutting edge of two different angles can control the height of bolt head while ensureing bolt head size, ensures that bolt is installed rear product and reached necessary requirement, improves Product Precision.
Preferably, the angle of wedge angle of described cutting edge I is 45 °, and the angle of cutting edge II is 89 °.Design the wedge-shaped cutting sword of these two angles according to the dimensional standard of countersunk bolt, low-angle cutting edge controls bolt head height size, and wide-angle controls bolt head size, increases work efficiency.
Preferably, described guide shaft and drill bit are Split type structure, guide shaft outer circumference surface is provided with locating hole corresponding to position with drill bit outer circumference surface, is provided with the alignment pin of helical structure in locating hole.Guide shaft and drill bit adopt Split type structure, conveniently carry out dismounting to guide shaft.
Preferably, described blade is that Hardmetal materials is formed.
The beneficial effect that the utility model brings is: 1, two angle drill bit can carry out spot-facing to the non-type bolt of bolt head, and can ensure the installation specification of bolt, improves the quality of product while increasing work efficiency.
2, be Split type structure by guide shaft and drill bit design, the dismounting both convenient, when guide shaft uses wearing and tearing, take off alignment pin, namely replaceable guide shaft, cost-saving, avoids unnecessary waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two angle counterbit of steel alloy.
Wherein, 1-guide shaft, 2-cutting edge I, 3-cutting edge II, 4-blade, 5-drill bit, 6-handle, 7-locating hole, 8-alignment pin.
Detailed description of the invention
The two angle counterbit of a kind of steel alloy, comprise guide shaft 1, drill bit 5 and handle 6, drill bit 5 excircle is provided with the different cutting edge of the angle of wedge I 2 and cutting edge II 3, cutting edge I 2 and cutting edge II 3 in same plane in obtuse angle, cutting edge II 3 one end is connected with cutting edge I 2, the other end is provided with blade 4, the axis being parallel of blade 4 and drill bit 5 and being arranged on the outer circumference surface of drill bit 5.The cutting edge of two different angles can control the height of bolt head while ensureing bolt head size, ensures that bolt is installed rear product and reached necessary requirement, improves Product Precision.
Preferably, the angle of wedge angle of described cutting edge I 2 is 45 °, and the angle of cutting edge II 3 is 89 °.Design the wedge-shaped cutting sword of these two angles according to the dimensional standard of countersunk bolt, low-angle cutting edge controls bolt head height size, and wide-angle controls bolt head size, increases work efficiency.
Preferably, described guide shaft 1 and drill bit 5 are Split type structure, guide shaft 1 outer circumference surface is provided with locating hole corresponding to position 7 with drill bit 5 outer circumference surface, is provided with the alignment pin 8 of helical structure in locating hole 7.Guide shaft 1 and drill bit 5 adopt Split type structure, conveniently carry out dismounting to guide shaft 1.
Preferably, described blade 4 is Hardmetal materials formation.
The course of work: needing the place of spot-facing to get a hole before work, then handle 6 and air drill chuck are clamped, by the center line in guide shaft 1 center line and hole at grade, secondly counterbit guide shaft 1 part is put into hole, starting air drill drives counterbit work to carry out spot-facing to hole, counterbit is little by little deep in hole until in the complete immersed hole of blade 4, terminate spot-facing work.
Claims (4)
1. the two angle counterbit of steel alloy, comprise guide shaft, drill bit and handle, it is characterized in that: drill bit excircle is provided with the different cutting edge of the angle of wedge I and cutting edge II, cutting edge I and cutting edge II in same plane in obtuse angle, cutting edge II one end is connected with cutting edge I, the other end is provided with blade, the axis being parallel of blade and drill bit and being arranged on the outer circumference surface of drill bit.
2. the two angle counterbit of a kind of steel alloy as claimed in claim 1, it is characterized in that: the angle of wedge angle of described cutting edge I is 45 °, the angle of cutting edge II is 89 °.
3. the two angle counterbit of a kind of steel alloy as claimed in claim 1, it is characterized in that: described guide shaft and drill bit are Split type structure, guide shaft outer circumference surface is provided with locating hole corresponding to position with drill bit outer circumference surface, in locating hole, is provided with the alignment pin of helical structure.
4. the two angle counterbit of a kind of steel alloy as claimed in claim 1, is characterized in that: described blade is that Hardmetal materials is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527449.9U CN204108426U (en) | 2014-09-15 | 2014-09-15 | The two angle counterbit of a kind of steel alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527449.9U CN204108426U (en) | 2014-09-15 | 2014-09-15 | The two angle counterbit of a kind of steel alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108426U true CN204108426U (en) | 2015-01-21 |
Family
ID=52325784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527449.9U Expired - Fee Related CN204108426U (en) | 2014-09-15 | 2014-09-15 | The two angle counterbit of a kind of steel alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145213A (en) * | 2016-12-06 | 2018-06-12 | 江西昌河航空工业有限公司 | A kind of guided tooling for sheet member draw nest |
| CN110369767A (en) * | 2019-08-07 | 2019-10-25 | 沈阳飞机工业（集团）有限公司 | Double compound conical surface counter bore processing cutters of angle |
-
2014
- 2014-09-15 CN CN201420527449.9U patent/CN204108426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108145213A (en) * | 2016-12-06 | 2018-06-12 | 江西昌河航空工业有限公司 | A kind of guided tooling for sheet member draw nest |
| CN110369767A (en) * | 2019-08-07 | 2019-10-25 | 沈阳飞机工业（集团）有限公司 | Double compound conical surface counter bore processing cutters of angle |
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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: 20150121 Termination date: 20170915 |