CN204094164U - Left-handed single cutting tool - Google Patents
Left-handed single cutting tool Download PDFInfo
- Publication number
- CN204094164U CN204094164U CN201420432568.6U CN201420432568U CN204094164U CN 204094164 U CN204094164 U CN 204094164U CN 201420432568 U CN201420432568 U CN 201420432568U CN 204094164 U CN204094164 U CN 204094164U
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- China
- Prior art keywords
- sword
- bit
- cutter hub
- withdrawing slot
- helical edges
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- Expired - Fee Related
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Abstract
The utility model relates to metal cutting process cutting-tool engineering field, be specifically related to left-handed single cutting tool, comprise cutter hub, described cutter hub rear end is handle of a knife, front end be cutting portion, cutting portion is provided with left-handed bit-withdrawing slot, bit-withdrawing slot is spirally extended to the end sword that cutting portion front end forms stepped ramp type, the limit mouth of bit-withdrawing slot is helical edges, described end sword is by the first sword, second sword, 3rd sword is formed, first sword, 3rd sword is inclination sword backward, second sword and cutter hub axis parallel, first sword front end connects with helical edges, the helical edges back side of joint forms sweptback 4th sword, first sword connects with the 4th sword front end formation point of a knife, the rear knife face of described helical edges is provided with spiral groove, bit-withdrawing slot groove face and the back side are equipped with spiral lines, ensure that workpiece to be machined has higher precision, impulse-free robustness, highly polished, avoid the phenomenons such as workpiece otch spring limit, can also be used to working special-shaped gully or hole without the need to tool changing, improve working (machining) efficiency.
Description
Technical field
The utility model relates to metal cutting process cutting-tool engineering field, is specifically related to left-handed single cutting tool.
Background technology
When the precision component of some composite materials of machining, because the design deficiency of existing cutter makes in process, characteristic due to composite is that scrap is not easy timely discharge, cutting face easily produces burr, the requirement of processing can not be met, the surface quality of workpiece can not be guaranteed, a lot of manufacturer is first processed basic shape by roughing now, and then fine finishining, finally by manual grinding, such operation production efficiency is low, production cost is high, shortcoming is obvious, and to special-shaped gully, the existing cutter of part in hole is difficult to processing, repeatedly tool changing is needed to be difficult to ensure the precision of processing.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned defect, provides left-handed single cutting tool, ensures that workpiece to be machined has higher precision, impulse-free robustness, highly polished, avoid the phenomenons such as workpiece otch spring limit, can also be used to working special-shaped gully or hole without the need to tool changing, improve working (machining) efficiency.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Left-handed single cutting tool, comprise cutter hub, described cutter hub rear end is handle of a knife, front end be cutting portion, cutting portion is provided with left-handed bit-withdrawing slot, bit-withdrawing slot is spirally extended to the end sword that cutting portion front end forms stepped ramp type, the limit mouth of bit-withdrawing slot is helical edges, described end sword is by the first sword, second sword, 3rd sword is formed, first sword, 3rd sword is inclination sword backward, second sword and cutter hub axis parallel, first sword front end connects with helical edges, the helical edges back side of joint forms sweptback 4th sword, first sword connects with the 4th sword front end formation point of a knife, the rear knife face of described helical edges is provided with spiral groove, the relief angle that spiral groove makes the formation of helical edges suitable, strengthen the toughness of helical edges, helical edges is not easily crumbled, bit-withdrawing slot groove face and the back side are equipped with spiral lines, bit-withdrawing slot spiral lines terminates in end sword place, avoid holding tooth shape to become the destruction of teeth shape, end sword is made to keep integrality.Each cutting edge of end sword all can cut separately and also can cut simultaneously, makes the concrete cutting edge of end sword carry out the processing in special-shaped gully, hole according to the Adjusting Shape cutter hub that will process.
Preferably, described cutter hub diameter is 6mm, 4th tread degree d is 0.21mm, 4th sword port is 2.8mm to the first sword port width a, the width b of the second sword is 3.1mm, the horizontal sextant angle α of described first sword and cutter hub axial line is 77 °, the horizontal sextant angle β of described 3rd sword and cutter hub axial line is 45 °, the horizontal sextant angle γ of described 4th sword and cutter hub axial line is 55 °, the size of cutter hub is conventional, palette knife head end cutting edge can process less hole or special-shaped gully, first sword connects with the 4th sword front end and forms the effect that point of a knife provides centering when longitudinally cutting to locate, described spiral groove and helical edges helical synchronous, and be arranged on helical edges cutting edge place.Spiral groove contributes to chip removal, is no matter longitudinally incision or laterally incision, and all discharge smoothly play the guiding role chip of having nothing to do of cutting, left-turn spiral can not produce otch and collapse limit.
Further, described bit-withdrawing slot groove face spiral lines spiral and bit-withdrawing slot helical synchronous, bit-withdrawing slot back side spiral lines and helical edges helical synchronous, helical synchronous is more conducive to the timely discharge of chip, the spiral lines at the back side impels chip to send when horizontal incision, and the spiral groove that bit-withdrawing slot engages its groove face impels chip discharge during longitudinally incision.
The beneficial effects of the utility model are: adopt such scheme, left-handed lower chip removal makes cutting discharge smoothly, and workpiece smooth cut is carefully and neatly done, and precision is high, and otch not easily collapses limit, utilize end sword can carry out not tool changing processing to special-shaped gully, hole with helical edges, raise the efficiency.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the utility model will become apparent.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing in I portion in Fig. 1.
Wherein: 1 is cutter hub, 2 is bit-withdrawing slot, and 3 is end sword, and 3.1 is the first sword, and 3.2 is the second sword, and 3.3 is the 3rd sword, and 3.4 is the 4th sword, and 4 is helical edges, and 5 is spiral lines, and 6 is spiral groove.
Detailed description of the invention
As Fig. 1, left-handed single cutting tool shown in Fig. 2, comprise cutter hub 1, cutter hub rear end is handle of a knife, handle of a knife for clamping at lathe, front end be cutting portion, cutting portion is provided with left-handed bit-withdrawing slot 2, bit-withdrawing slot 2 is spirally extended to the end sword 3 that cutting portion front end forms stepped ramp type, cutter hub diameter is 6mm, the limit mouth of bit-withdrawing slot 2 is helical edges 4, end sword is by the first sword 3.1, second sword 3.2, 3rd sword 3.3 is formed, first sword 3.1 is 77 ° with the horizontal sextant angle α of cutter hub 1d axial line, 3rd sword 3.3 is 45 ° with the horizontal sextant angle β of cutter hub 1 axial line, second sword 3.2 and cutter hub 1 axis parallel, first sword 3.1 front end connects with helical edges 4, helical edges 4 back side of joint forms sweptback 4th sword 3.4, 4th sword 3.4 is 55 ° with the horizontal sextant angle γ of cutter hub 1 axial line, first sword 3.1 connects with the 4th sword 3.4 front end formation point of a knife, the width d of the 4th sword 3.4 is 0.21mm, 4th sword 3.4 port is 2.8mm to the port width a of the first sword 3.1, the width b of the second sword 3.2 is 3.1mm, spiral lines 5 is arranged on groove face and the back side of bit-withdrawing slot 2, spiral groove 6 and helical edges 4 helical synchronous, be arranged on helical edges 4 cutting edge place.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model namely openly in scope; still can do some revise or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (4)
1. left-handed single cutting tool, comprise cutter hub, it is characterized in that: described cutter hub rear end is handle of a knife, front end be cutting portion, cutting portion is provided with left-handed bit-withdrawing slot, bit-withdrawing slot is spirally extended to the end sword that cutting portion front end forms stepped ramp type, the limit mouth of bit-withdrawing slot is helical edges, described end sword is by the first sword, second sword, 3rd sword is formed, first sword, 3rd sword is inclination sword backward, second sword and cutter hub axis parallel, first sword front end connects with helical edges, the helical edges back side of joint forms sweptback 4th sword, first sword connects with the 4th sword front end formation point of a knife, the rear knife face of described helical edges is provided with spiral groove, bit-withdrawing slot groove face and the back side are equipped with spiral lines.
2. left-handed single cutting tool according to claim 1, it is characterized in that: the horizontal sextant angle α of described first sword and cutter hub axial line is 77 °, the horizontal sextant angle β of described 3rd sword and cutter hub axial line is 45 °, and the horizontal sextant angle γ of described 4th sword and cutter hub axial line is 55 °.
3. left-handed single cutting tool according to claim 1, is characterized in that: described spiral groove and helical edges helical synchronous, and is arranged on helical edges cutting edge place.
4. left-handed single cutting tool according to claim 1, is characterized in that: described bit-withdrawing slot groove face spiral lines spiral and bit-withdrawing slot helical synchronous, bit-withdrawing slot back side spiral lines and helical edges helical synchronous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432568.6U CN204094164U (en) | 2014-08-01 | 2014-08-01 | Left-handed single cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432568.6U CN204094164U (en) | 2014-08-01 | 2014-08-01 | Left-handed single cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204094164U true CN204094164U (en) | 2015-01-14 |
Family
ID=52262633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420432568.6U Expired - Fee Related CN204094164U (en) | 2014-08-01 | 2014-08-01 | Left-handed single cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204094164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190968A (en) * | 2014-08-01 | 2014-12-10 | 常州创伟工具制造有限公司 | Levorotation single-edged cutter |
-
2014
- 2014-08-01 CN CN201420432568.6U patent/CN204094164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190968A (en) * | 2014-08-01 | 2014-12-10 | 常州创伟工具制造有限公司 | Levorotation single-edged cutter |
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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: 20150114 Termination date: 20180801 |