CN204504408U - A kind of carbide hob - Google Patents
A kind of carbide hob Download PDFInfo
- Publication number
- CN204504408U CN204504408U CN201420839633.7U CN201420839633U CN204504408U CN 204504408 U CN204504408 U CN 204504408U CN 201420839633 U CN201420839633 U CN 201420839633U CN 204504408 U CN204504408 U CN 204504408U
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- China
- Prior art keywords
- anterior
- negative
- carbide hob
- angle
- anterior angle
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Abstract
The utility model discloses a kind of carbide hob, comprise cutter hub, cutter hub is provided with anterior angle, and anterior angle is negative bias angle.Anterior angle can adopt negative 10 ° of anterior angles or negative 15 ° of anterior angles.The negative side rake that the utility model carbide hob is formed is cut and is reduced cutting force and cutting vibration, reduces the possibility of cutter tooth tipping, has the advantages such as working (machining) efficiency is high, durability good, long service life.
Description
Technical field
The utility model relates to a kind of carbide hob for machining gears.
Background technology
Along with in gear manufacture field high strength, high rigidity and other difficult-to-machine materials application increasing, carbide hob is widely used gradually.Carbide hob has higher production efficiency and service life than high-speed steel hobboing cutter, and the flank of tooth fineness of machining gears and the accuracy of gear all increase.Because the anterior angle of the cutter hub of carbide hob generally used is at present zero degree, working portion on carbide hob side edge (zero degree hook) almost enters cutting region simultaneously, cutting edge can be subject to serious impact, and chip also in the form of sheets, cutting vibration is large, also there is the possibility of cutter tooth tipping.
Summary of the invention
Technical problem to be solved in the utility model is to propose that a kind of working (machining) efficiency is high, durability good, the carbide hob of long service life.
For solving the problems of the technologies described above, a kind of carbide hob of the utility model comprises cutter hub, and described cutter hub is provided with anterior angle, and described anterior angle is negative bias angle.
Above-mentioned a kind of carbide hob, described anterior angle adopts negative 10 ° of anterior angles.
Above-mentioned a kind of carbide hob, described anterior angle adopts negative 15 ° of anterior angles.
The utility model is owing to have employed above-mentioned technical pattern, and the zero degree hook of existing carbide hob is changed into the anterior angle of band negative bias by it.When hobboing cutter cuts, each of participation cutting forms respective cutting region at tooth on the flank of tooth cut through in advance.And first cut by root with the working portion on the carbide hob side edge of negative bias anterior angle, gradually to top expansion, form a kind of Oblique Cutting Process.The top sword of the carbide hob of negative bias anterior angle does not participate in cutting, and only flank sword cuts, and its radial negative rake reality obtains certain negative side rake in hobbing process, and chip is rolled into helical form.The negative side rake that carbide hob with negative bias anterior angle is formed is cut, and reduces cutting force and cutting vibration, reduces the possibility of cutter tooth tipping, have the advantages such as working (machining) efficiency is high, durability good, long service life.
Accompanying drawing explanation
Fig. 1 is the end face structure schematic diagram of the utility model carbide hob.
Detailed description of the invention
As shown in Figure 1, the utility model carbide hob comprises cutter hub 1, and cutter hub 1 is provided with anterior angle ɑ, and anterior angle ɑ is negative bias angle.Negative bias angle determined by the hardness of processed gear, when gear hardness is at HRC40-58, adopts negative 10 ° of anterior angles; When gear hardness is at HRC56-64, adopt negative 15 ° of anterior angles.
Claims (1)
1. a carbide hob, comprises cutter hub, it is characterized in that, described cutter hub is provided with anterior angle, and described anterior angle adopts negative 10 ° of anterior angles or negative 15 ° of anterior angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839633.7U CN204504408U (en) | 2014-12-26 | 2014-12-26 | A kind of carbide hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420839633.7U CN204504408U (en) | 2014-12-26 | 2014-12-26 | A kind of carbide hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504408U true CN204504408U (en) | 2015-07-29 |
Family
ID=53702413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420839633.7U Active CN204504408U (en) | 2014-12-26 | 2014-12-26 | A kind of carbide hob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504408U (en) |
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2014
- 2014-12-26 CN CN201420839633.7U patent/CN204504408U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |