CN203566013U - Spiral point serrated tap - Google Patents
Spiral point serrated tap Download PDFInfo
- Publication number
- CN203566013U CN203566013U CN201320752777.4U CN201320752777U CN203566013U CN 203566013 U CN203566013 U CN 203566013U CN 201320752777 U CN201320752777 U CN 201320752777U CN 203566013 U CN203566013 U CN 203566013U
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- CN
- China
- Prior art keywords
- tap
- spiral shell
- screw
- slope
- cutting
- 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 a spiral point serrated tap, which comprises a biting slope, a spiral point, cutting threads, chip grooves, a tap handle, a central through hole, a fixed square head, a blade groove and a blade head, and is characterized in that the front end of the tap handle is provided with the cutting threads, and the cutting threads are uniformly arranged along the circumferential direction of the tap handle; the chip groove is arranged between the adjacent cutting threads, and the front end of the cutting threads is provided with the spiral point; the front end of the spiral point is provided with the biting slope, and the front end of the biting slope is provided with the blade head; the front end of the chip groove is provided with the blade groove, and the back end of the tap handle is provided with the fixed square head; the central through hole is arranged on the axis of the tap handle. The spiral point serrated tap provided by the utility model has the beneficial effects of reasonable structural design, simplicity in use and operation, time and labor saving, and longer service life, the biting slope is provided, and the threads are not easily broken.
Description
Technical field
The utility model relates to cutting element technology, more specifically says a kind of spiral shell point sawtooth screw tap.
Background technology
Screw tap is a kind of cutter of machining internal thread, according to environment for use, can be divided into set tap and machine tap, according to shape, can be divided into straight trough screw tap, spiral fluted tap and spiral pointed tap, the front portion of the spiral pointed tap of prior art has to hold cuts groove, the discharge of cutting for metal, when with spiral pointed tap machining internal thread, because the spiral shell crack tip angle of its blade arranges improper, in internal thread machining process, the discontinuity at screw tap sword head place, usually cause thread wearing and tearing, fracture, shortened the service life of spiral pointed tap.
Summary of the invention
For addressing the above problem, the utility model has designed a kind of rational in infrastructure, simple to operate, be provided with wedging slope, thread is easy fracture not, time saving and energy saving, the spiral shell point sawtooth screw tap that service life is longer, its technical scheme is: described spiral shell point sawtooth screw tap is by wedging slope, spiral shell point, screw cutting, chip area, tap holder, central through hole, fixing square toes, flute, sword head forms, the front end that it is characterized in that tap holder is provided with screw cutting, screw cutting evenly arranges along tap holder circumferencial direction, between adjacent cutting screw thread, chip area is set, the front end of screw cutting arranges spiral shell point, the front end of spiral shell point arranges wedging slope, the front end on wedging slope arranges sword head, the front end of chip area arranges flute, the rear end of tap holder is provided with fixedly square toes, in the axial location of tap holder, central through hole is set.
Spiral shell point described in the utility model, is characterized in that the anterior angle of spiral shell point adopts 13 °.
Screw cutting described in the utility model, is characterized in that the pitch of screw cutting adopts 1.25mm.
Sword head described in the utility model, is characterized in that the upper surface of sword head and the angle of horizontal plane are: 2 ° 51 '.
The beneficial effects of the utility model are spiral shell point sawtooth screw tap reasonable in design, use simple to operately, are provided with wedging slope, and thread is easy fracture not, time saving and energy saving, and service life is longer.
accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model, in accompanying drawing 1:
1. wedging slope, 2. spiral shell point, 3. screw cutting, 4. chip area, 5. tap holder, 6. central through hole, 7. fixedly square toes, 8. flute, 9. sword head.
the specific embodiment:
1 pair of the utility model further illustrates by reference to the accompanying drawings, to better structure and advantage are understood, the utility model specific embodiment is: described spiral shell point sawtooth screw tap is by wedging slope 1, spiral shell point 2, screw cutting 3, chip area 4, tap holder 5, central through hole 6, fixedly square toes 7, flute 8, sword head 9 forms, the front end that it is characterized in that tap holder 5 is provided with screw cutting 3, screw cutting 3 evenly arranges along the circumferencial direction of tap holder 5, chip area 4 is set between adjacent cutting screw thread 3, the front end of screw cutting 3 arranges spiral shell point 2, the front end of spiral shell point 2 arranges wedging slope 1, the front end on wedging slope 1 arranges sword head 9, the front end of chip area 4 arranges flute 8, the rear end of tap holder 5 is provided with fixedly square toes 7, central through hole 6 is set in the axial location of tap holder 5.
Screw cutting 3 described in the utility model, is characterized in that the pitch of screw cutting 3 adopts 1.25mm.
Sword head 9 described in the utility model, is characterized in that the upper surface of sword head 9 and the angle of horizontal plane are: 2 ° 51 '.
The beneficial effects of the utility model are spiral shell point sawtooth screw tap reasonable in design, use simple to operately, are provided with wedging slope, and thread is easy fracture not, time saving and energy saving, and service life is longer.
Claims (2)
1. spiral shell point sawtooth screw tap, by wedging slope (1), spiral shell point (2), screw cutting (3), chip area (4), tap holder (5), central through hole (6), fixing square toes (7), flute (8), sword head (9) forms, the front end that it is characterized in that tap holder (5) is provided with screw cutting (3), screw cutting (3) evenly arranges along the circumferencial direction of tap holder (5), chip area (4) is set between adjacent cutting screw thread (3), the front end of screw cutting (3) arranges spiral shell point (2), the front end of spiral shell point (2) arranges wedging slope (1), the front end on wedging slope (1) arranges sword head (9), the front end of chip area (4) arranges flute (8), the rear end of tap holder (5) is provided with fixedly square toes (7), central through hole (6) is set in the axial location of tap holder (5).
2. spiral shell according to claim 1 point sawtooth screw tap, is characterized in that the upper surface of sword head (9) and the angle of horizontal plane are set to: 2 ° 51 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752777.4U CN203566013U (en) | 2013-11-26 | 2013-11-26 | Spiral point serrated tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752777.4U CN203566013U (en) | 2013-11-26 | 2013-11-26 | Spiral point serrated tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203566013U true CN203566013U (en) | 2014-04-30 |
Family
ID=50533771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752777.4U Expired - Fee Related CN203566013U (en) | 2013-11-26 | 2013-11-26 | Spiral point serrated tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203566013U (en) |
-
2013
- 2013-11-26 CN CN201320752777.4U patent/CN203566013U/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 | ||
| 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: 20140430 Termination date: 20161126 |