CN203044998U - Three-lipped drill head used for hard alloy inner-cooling oil hole machining - Google Patents
Three-lipped drill head used for hard alloy inner-cooling oil hole machining Download PDFInfo
- Publication number
- CN203044998U CN203044998U CN 201320046071 CN201320046071U CN203044998U CN 203044998 U CN203044998 U CN 203044998U CN 201320046071 CN201320046071 CN 201320046071 CN 201320046071 U CN201320046071 U CN 201320046071U CN 203044998 U CN203044998 U CN 203044998U
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- China
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- drill head
- lipped
- oil hole
- hole machining
- bit
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- 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 technical field of hole machining, and particularly relates to hard alloy inner-cooling oil hole machining, and in particular to a three-lipped drill head used for the hard alloy inner-cooling oil hole machining. The three-lipped drill head comprises three-lipped drill head edges and a drill head handle, and is characterized in that the three-lipped drill head edges are of an equally-divided edge structure that each included angle alpha among three spiral edges is equal to 120 degrees, the bottom edge of each spiral edge is of a fan-shaped structure, and the edge negative angle of each bottom edge is of a structure of an arc-shaped notch with the radius R equal to 10mm. The three-lipped drill head saves 50% machining time, greatly improves production efficiency, reduces consumption of electricity, reduces expenses produced by equipment operation, greatly reduces emission load of carbon dioxide and is energy-saving and environment-friendly.
Description
Technical field
The utility model relates to the hole processing technique field, especially cold oil hole processing in the carbide alloy, specifically processing three-wing bit in cold oil hole in a kind of carbide alloy.
Background technology
Under the economic conditions of the marketization, in the manufacture field of hole, high efficiency processing more and more is much accounted of, but general two-edged drill bit is by general choice, and its stock-removing efficiency also has certain restriction, and cutting stability is relatively poor, owing to vibrating the variation that produces the aperture, had a strong impact on crudy.Common three-wing bit is compared with the two-edged drill bit, and chip pocket is smaller, is fit to processing and produces the smear metal materials with smaller, for example cast iron and casting aluminium material, but the processing at steel is then very difficult, often causes tipping when penetrating workpiece because high feeding is processed, and the service life of drill bit is short.
Summary of the invention
The purpose of this utility model provides the interior cold oil hole processing of a kind of carbide alloy to use three-wing bit for overcoming the deficiencies in the prior art, has solved problems such as above-mentioned two-edged bit cutting efficient is relatively poor, less stable, the aperture easily changes and lack service life.
In order to achieve the above object, the utility model has designed processing three-wing bit in cold oil hole in a kind of carbide alloy, comprise three-wing bit sword and bit sub, it is characterized in that: described three-wing bit sword is the five equilibrium sword structure of angle α=120 ° between three helical edges, the shear blade of its each helical edges is sector structure, and the edge negative angle of described shear blade is the arc-shaped notch structure of radius R=10mm.
The shear blade area of described helical edges is greater than the baseplane area of chip pocket.
The bottom of described bit sub also is provided with one for the groove of stablizing oil supply.
The utility model is compared with prior art, has following advantage: the disjunction smear metal is fast, the chip removal smoothness, and feed rate reaches 1.5-2 times of two-edged drill bit; Edge negative angle design can effectively suppress high feeding and process the tipping that causes when penetrating workpiece, has prolonged the life-span of instrument; The design of five equilibrium sword has realized stable processing, has effectively suppressed the varying aperture that is produced by vibration in drilling process; The amount of feeding of every sword is less, and work hardening is lowered; The utility model has saved for 50% process time, has improved production efficiency greatly, has reduced the consumption of electric power, has reduced the expense that the equipment running produces, and has subdued emission amount of carbon dioxide greatly, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Referring to Fig. 1 and Fig. 2,1 is the three-wing bit sword; 2 is bit sub; 3 is shear blade; 4 is the edge negative angle; 5 is chip pocket; 6 is groove.
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises three-wing bit sword 1 and bit sub 2, three-wing bit sword 1 is the five equilibrium sword structure of angle α=120 ° between three helical edges, and the shear blade 3 of its each helical edges is sector structure, and the edge negative angle 4 of shear blade 3 is the arc-shaped notch structure of radius R=10mm.Shear blade 3 areas of helical edges are greater than the baseplane area of chip pocket 5, and chip pocket 5 is littler than the chip pocket of two-edged drill bit, and smear metal is effectively handled, and are applicable to the processing of cast iron and aluminum component.The bottom of bit sub 2 also is provided with one for the groove 6 of stablizing oil supply.
The utility model can be when working steel products good disjunction smear metal and smooth discharge, the 1.5-2 that feed rate can reach the two-edged drill bit is doubly.In high feeding processing, reduce the rotating speed in a hole of every processing, prolonged the life-span of instrument.In addition, the edge negative angle design of shear blade can effectively suppress the tipping that causes when high feeding processing penetrates workpiece.Five equilibrium sword design has realized stable processing, has effectively suppressed the varying aperture that produced by vibration in drilling process, from processing initial stage to life tools the limit can both guarantee stable aperture period.Compare with varying aperture in the processing of two-edged drill bit bore, the extensive magnitude in the utility model drill bit aperture has only half of two-edged drill bit.The amount of feeding of revolution is directly proportional with work hardening amount and work hardening layer depth, when the amount of feeding of revolution is identical, compares with traditional two-edged drill bit, and the amount of feeding of the every sword of three-wing bit is less, and work hardening is lowered.Therefore, after having suppressed the work hardening phenomenon, postorder adds the screw tap that uses man-hour, and can access effective prolongation the life tools of reamer and guide hole.
The utility model is primarily aimed at steel, cast iron processing, feed speed surpasses F=1,000mm/min, improved the reduction of 50% process time, prolonged 6 times life tools, and because the significantly raising of production efficiency has reduced the consumption of electric power, reduce the expense that the equipment running produces, subdued emission amount of carbon dioxide greatly.
Claims (3)
1. the interior cold oil hole of carbide alloy processes and uses three-wing bit, comprise three-wing bit sword and bit sub, it is characterized in that: described three-wing bit sword is the five equilibrium sword structure of angle α=120 ° between three helical edges, the shear blade of its each helical edges is sector structure, and the edge negative angle of described shear blade is the arc-shaped notch structure of radius R=10mm.
2. three-wing bit is used in the processing of cold oil hole in the carbide alloy according to claim 1, and it is characterized in that: the shear blade area of described helical edges is greater than the baseplane area of chip pocket.
3. three-wing bit is used in the processing of cold oil hole in the carbide alloy according to claim 1, it is characterized in that: the bottom of described bit sub also is provided with one for the groove of stablizing oil supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046071 CN203044998U (en) | 2013-01-29 | 2013-01-29 | Three-lipped drill head used for hard alloy inner-cooling oil hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046071 CN203044998U (en) | 2013-01-29 | 2013-01-29 | Three-lipped drill head used for hard alloy inner-cooling oil hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203044998U true CN203044998U (en) | 2013-07-10 |
Family
ID=48727995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046071 Expired - Fee Related CN203044998U (en) | 2013-01-29 | 2013-01-29 | Three-lipped drill head used for hard alloy inner-cooling oil hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203044998U (en) |
-
2013
- 2013-01-29 CN CN 201320046071 patent/CN203044998U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140129 |