CN203875360U - Cubic boron nitride tool containing positive rake angle chip breaker grooves - Google Patents
Cubic boron nitride tool containing positive rake angle chip breaker grooves Download PDFInfo
- Publication number
- CN203875360U CN203875360U CN201420050314.8U CN201420050314U CN203875360U CN 203875360 U CN203875360 U CN 203875360U CN 201420050314 U CN201420050314 U CN 201420050314U CN 203875360 U CN203875360 U CN 203875360U
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- CN
- China
- Prior art keywords
- rake angle
- positive rake
- boron nitride
- chip breaker
- angle chip
- 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 discloses a cubic boron nitride tool containing positive rake angle chip breaker grooves and concretely the cubic boron nitride tool containing the positive rake angle chip breaker grooves is suitable for fine processing of gray cast iron. Technical problems are solved that during fine processing of the gray cast iron, excessive cutting resisting force is caused when a boron nitride cutter tool containing a negative rake angle cuts, so a work piece can be easily deformed. The cubic boron nitride tool containing the positive rake angle chip breaker grooves comprises a blade. Points of the blade are respectively provided with the positive rake angle chip breaker groove; each positive rake angle chip breaker groove is formed by a slope and a vertical surface perpendicular to the upper surface of the blade; and each positive rake angle chip breaker groove is formed by enclosure of the slope and the vertical surface. With the above structure, a shearing angle of a cutting edge is added, so low shearing force and low energy transferring are produced; and low temperature is maintained in a shearing area, so service life of a cutter tool is prolonged.
Description
Technical field
The utility model relates to a kind of cubic boron nitride cutting tool, is specifically related to a kind of accurately machined cubic boron nitride cutting tool with positive rake angle chip-breaker of the materials such as casting pig that is suitable for.
Background technology
At present in the time of the workpiece of the materials such as boron nitride blade fine finishining casting pig, due to the characteristic of machined material itself, and the requirement of machining accuracy, and the expansion of thin-walled parts range of application, negative rake shape boron nitride cutter has not been well positioned to meet processed requirement, for example, in the time that processing wall thickness only has the casting pig workpiece of 1.5mm, adopt the processing of negative rake shape boron nitride cutter, processing later workpiece is out of shape, do not meet client's requirement, caused great waste.
Summary of the invention
When the technical problems to be solved in the utility model is the material fine finishining such as casting pig, when the cutting of negative rake shape boron nitride cutter, produce excessive resistance to cutting, workpiece is yielding, provide one to be suitable for the material fine finishining such as casting pig, the on-deformable cubic boron nitride cutting tool with positive rake angle chip-breaker of workpiece.
For achieving the above object, the utility model adopts following technical proposals: a kind of cubic boron nitride cutting tool with positive rake angle chip-breaker, comprise blade, the point of a knife of blade is provided with positive rake angle chip-breaker, described positive rake angle chip-breaker comprises domatic with vertical with the upper surface of blade vertical plane, and domatic and vertical plane surrounds positive rake angle chip-breaker.
The angle of described domatic and blade upper surface is 5-30 °.
The width of described positive rake angle chip-breaker is 0.5-4.5mm.
The thickness of described blade is 4-10mm.
Described point of a knife is that radius is the circular arc of 0.5-3.0mm.
The utility model, for the design of the positive rake angle geometric angle of casting pig processing, this means that a blade has the cutting edge of eight positive rake angles, and this makes the entirety cube desalination boron cutter economy with chip-breaker very good, and easy to use; Be designed to positive rake angle form with the boron nitride cutter of chip-breaker, namely increased the angle of shear of cutting edge, thereby produced the energy transfer of lower cutting force and reduced levels, consequently produce lower temperature in cutting region.By reducing crescent hollow abrasion, owing to lower temperature and load, can realize the raising of cutter life; Smear metal power reduces, and friction reduces, and cutting temperature has just reduced, and the reduction of cutting temperature and cutting force makes it reduce as far as possible the chemical erosion to cutting edge, thereby has improved from another point of view cutter life; Due to lower cutting force, be exactly that element precision is improved for the advantage of processing work.In addition,, owing to improving chip removal, surface roughness is also effectively improved.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the A-A of Fig. 1 is to sectional structure schematic diagram.
Fig. 3 is side-looking structural representation of the present utility model.
Installation process structural representation when Fig. 4 is use of the present utility model.
Detailed description of the invention
As shown in Figures 1 to 4, a kind of cubic boron nitride cutting tool with positive rake angle chip-breaker, comprise blade 1, the point of a knife 3 of blade 1 is provided with positive rake angle chip-breaker 2, described positive rake angle chip-breaker 2 comprise domatic 21 with the vertical plane 22 vertical with the upper surface 4 of blade 1, domatic 21 with vertical plane 22 surround positive rake angle chip-breaker 2.
Described domatic 21 with the angle a of blade 1 upper surface 4 be 5-30 °, as required, domatic 21 with the angle a of blade 1 upper surface 4 can be 5 °, 10 °, 20 °, 30 °.
The width b of described positive rake angle chip-breaker 2 is 0.5-4.5mm, can be also 0.5mm, 1 mm, 2 mm, 3 mm, 4 mm, 4.5 mm.
The thickness S of described blade 1 is 4-10mm, and according to product needed, the thickness S of blade 1 can be 4 mm, 6 mm, 8 mm, 10 mm.
Described point of a knife 3 is that radius R is the circular arc of 0.5-3.0mm, and radius R can be 0.5mm, 1mm, 2mm, 3mm.
When use, edge bearing 15 is fixed on knife bar 16 with screw 14, blade 1 is placed on to the cutter nest place on knife bar 16, then pressing plate 12 is pressed on knife bar 16 by bridge screw 11, and compresses blade 1.Assemble after cutter, Cutting tool installation manner, on the knife rest of lathe, alignment pieces is carried out turning processing.
Claims (5)
1. the cubic boron nitride cutting tool with positive rake angle chip-breaker, it is characterized in that: comprise blade (1), the point of a knife (3) of blade (1) is provided with positive rake angle chip-breaker (2), described positive rake angle chip-breaker (2) comprises domatic (21) and the vertical plane (22) vertical with the upper surface (4) of blade (1), and domatic (21) surround positive rake angle chip-breaker (2) with vertical plane (22).
2. the cubic boron nitride cutting tool with positive rake angle chip-breaker according to claim 1, is characterized in that: described domatic (21) are 5-30 ° with the angle (a) of blade (1) upper surface (4).
3. the cubic boron nitride cutting tool with positive rake angle chip-breaker according to claim 1, is characterized in that: the width (b) of described positive rake angle chip-breaker (2) is 0.5-4.5mm.
4. the cubic boron nitride cutting tool with positive rake angle chip-breaker according to claim 1, is characterized in that: the thickness (S) of described blade (1) is 4-10mm.
5. the cubic boron nitride cutting tool with positive rake angle chip-breaker according to claim 1, is characterized in that: described point of a knife (3) is the circular arc that radius (R) is 0.5-3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050314.8U CN203875360U (en) | 2014-01-27 | 2014-01-27 | Cubic boron nitride tool containing positive rake angle chip breaker grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050314.8U CN203875360U (en) | 2014-01-27 | 2014-01-27 | Cubic boron nitride tool containing positive rake angle chip breaker grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203875360U true CN203875360U (en) | 2014-10-15 |
Family
ID=51675903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050314.8U Expired - Fee Related CN203875360U (en) | 2014-01-27 | 2014-01-27 | Cubic boron nitride tool containing positive rake angle chip breaker grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203875360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031876A (en) * | 2018-01-31 | 2018-05-15 | 张伟东 | A kind of cutting tool |
-
2014
- 2014-01-27 CN CN201420050314.8U patent/CN203875360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031876A (en) * | 2018-01-31 | 2018-05-15 | 张伟东 | A kind of cutting tool |
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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 |
Granted publication date: 20141015 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |