CN105057819A - Sawtooth thread chaser - Google Patents
Sawtooth thread chaser Download PDFInfo
- Publication number
- CN105057819A CN105057819A CN201510558834.9A CN201510558834A CN105057819A CN 105057819 A CN105057819 A CN 105057819A CN 201510558834 A CN201510558834 A CN 201510558834A CN 105057819 A CN105057819 A CN 105057819A
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- CN
- China
- Prior art keywords
- working face
- face
- knife
- height
- working
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a sawtooth thread chaser which comprises a knife rest body and a fixing hole. The knife rest body is provided with a first working face, a second working face, a third working face and a triangular slope knife edge, the working face height of the first working face, the working face height of the second working face and the working face height of the third working face become larger gradually based on the knife rest body, the first working face and the second working face are in transition connection through a slope, the second working face and the third working face are in transition connection through a slope knife edge, the inclined angle of one cutting face of the triangular slope knife edge is 45 degrees, the inclined angle of another cutting face of the triangular slope knife edge is 1 degree, the top chamfer of the triangular slope knife edge is 0.48 mm, and the height of the triangular slope knife edge relative to the third working face is 1.677 mm. By means of the mode, the sawtooth thread chaser can bear high axial compression loads and can bear enough large stretching or compression loads.
Description
Technical field
The present invention relates to screw tool processing technique field, particularly relate to a kind of saw-tooth thread chasing tool.
Background technology
At present, along with the complexity day by day of exploration oil field environment, the tensile strength of double thread cutter and bonding strength require more and more higher, wherein high strength plain end oil well pipe special thread, it is the inclined ladder type special thread of every inch eight tooth, buttress thread oil pipe has higher tensile strength, has higher bonding strength, and quilt is so be widely applied in oil pipe.But the processing of double thread, the requirement of its precision and surface quality is more and more higher, when processing inclined ladder type special thread in this type of, buttress thread due to total cutting depth large, universal cutter size is subject to the restriction of trapezoidal thread physical dimension, the screw thread processed can not bear high axial compression load, can not bear enough large stretching or compressive load, so processing difficulties.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of saw-tooth thread chasing tool, can bear high axial compression load, bears enough large stretching or compressive load.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of saw-tooth thread chasing tool, comprise: tool holder body and fixing hole, described tool holder body is provided with the first working face, second working face, 3rd working face and the triangle inclined-plane edge of a knife, first working face, the face height of the second working face and the 3rd working face raises step by step based on tool holder body, connected by a chamfered transition between described first working face and the second working face, connected by inclined-plane edge of a knife transition between described second working face and the 3rd working face, the angle of inclination in a described triangle inclined-plane edge of a knife wherein cutting face is 45 °, the angle of inclination in another cutting face of the edge of a knife, described triangle inclined-plane is 1 °, the top chamfer of the described triangle inclined-plane edge of a knife is 0.48mm, the described triangle inclined-plane edge of a knife is 1.677mm relative to the height of the 3rd working face.
In a preferred embodiment of the present invention, the face height of face height distance first working face of described second working face exceeds 0.7mm, and the face height of face height distance second working face of described 3rd working face exceeds 0.1mm.
In a preferred embodiment of the present invention, described second working face and the 3rd working face are a slightly-inclined face, described second working face is 1 ° 47 ' relative to the downtilt angles of the first working face, and described 3rd working face is 1 ° 47 ' relative to the angle that is inclined upwardly of the first working face.
In a preferred embodiment of the present invention, the chamfering of the described triangle inclined-plane edge of a knife and the second working face and the 3rd working face junction is 0.5mm.
In a preferred embodiment of the present invention, it is 10 ° that the described triangle inclined-plane edge of a knife tilts backwards angle.
The invention has the beneficial effects as follows: the present invention draws tooth side angle by increase makes screw thread bear high axial compression load, can bear enough large stretching or compressive load, make cutter more sharp, also can make the anti-stick button performance enhancement of cutter.
Accompanying drawing explanation
Fig. 1 is the front view of saw-tooth thread chasing tool of the present invention;
Fig. 2 is the close-up schematic view of saw-tooth thread chasing tool of the present invention;
Fig. 3 is the left side view of Fig. 1.
In accompanying drawing, the mark of each parts is as follows: 1, tool holder body; 2, fixing hole; 3, inclined-plane; 10, the first working face; 11, the second working face; 12, the 3rd working face; 13, the triangle inclined-plane edge of a knife; 130, large cutting face; 131, little cutting face, 132, top chamfer.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1 to Fig. 3, the embodiment of the present invention comprises: a kind of saw-tooth thread chasing tool, comprise: tool holder body 1 and fixing hole 2, described tool holder body 1 is provided with the first working face 10, second working face 11, 3rd working face 12 and the triangle inclined-plane edge of a knife 13, first working face 10, the face height of the second working face 11 and the 3rd working face 13 raises step by step based on tool holder body 1, connected by inclined-plane 3 transition between described first working face 10 and the second working face 11, connected by the inclined-plane edge of a knife 13 transition between described second working face 11 and the 3rd working face 13, the angle of inclination in the described triangle inclined-plane edge of a knife 13 wherein large cutting face 130 is 45 °, the angle of inclination in another little cutting face 131 of the edge of a knife, described triangle inclined-plane is 1 °, the top chamfer 132 of the described triangle inclined-plane edge of a knife 13 is 0.48mm, the described triangle inclined-plane edge of a knife 13 is 1.677mm relative to the height of the 3rd working face 12.
Furtherly, the face height of face height distance first working face 10 of described second working face 11 exceeds 0.7mm, and the face height of face height distance second working face 11 of described 3rd working face 12 exceeds 0.1mm; Described second working face 11 and the 3rd working face 12 are a slightly-inclined face, described second working face 11 is 1 ° 47 ' relative to the downtilt angles of the first working face 10, and described 3rd working face 12 is 1 ° 47 ' relative to the angle that is inclined upwardly of the first working face 10; The chamfering of the described triangle inclined-plane edge of a knife 13 and the second working face 11 and the 3rd working face 12 junction is 0.5mm; It is 10 ° that the described triangle inclined-plane edge of a knife tilts backwards angle.
The processing of its screw thread of the new saw-tooth thread chasing tool of the present invention is compared to the screw thread of API standard, gap at the bottom of tooth top, tooth is less, the angle of two cutting face edges of a knife is 10 ° from conventional angle and is optimized for 45 °, 3 ° are optimized for 1 °, cutter can be made more sharp, there is the advantages such as anti-stick button performance is better.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a saw-tooth thread chasing tool, it is characterized in that, comprise: tool holder body and fixing hole, described tool holder body is provided with the first working face, second working face, 3rd working face and the triangle inclined-plane edge of a knife, first working face, the face height of the second working face and the 3rd working face raises step by step based on tool holder body, connected by a chamfered transition between described first working face and the second working face, connected by inclined-plane edge of a knife transition between described second working face and the 3rd working face, the angle of inclination in a described triangle inclined-plane edge of a knife wherein cutting face is 45 °, the angle of inclination in another cutting face of the edge of a knife, described triangle inclined-plane is 1 °, the top chamfer of the described triangle inclined-plane edge of a knife is 0.48mm, the described triangle inclined-plane edge of a knife is 1.677mm relative to the height of the 3rd working face.
2. saw-tooth thread chasing tool according to claim 1, it is characterized in that: the face height of face height distance first working face of described second working face exceeds 0.7mm, the face height of face height distance second working face of described 3rd working face exceeds 0.1mm.
3. saw-tooth thread chasing tool according to claim 1, it is characterized in that: described second working face and the 3rd working face are a slightly-inclined face, described second working face is 1 ° 47 ' relative to the downtilt angles of the first working face, and described 3rd working face is 1 ° 47 ' relative to the angle that is inclined upwardly of the first working face.
4. saw-tooth thread chasing tool according to claim 1, is characterized in that: the chamfering of the described triangle inclined-plane edge of a knife and the second working face and the 3rd working face junction is 0.5mm.
5. saw-tooth thread chasing tool according to claim 1, is characterized in that: it is 10 ° that the described triangle inclined-plane edge of a knife tilts backwards angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558834.9A CN105057819A (en) | 2015-09-06 | 2015-09-06 | Sawtooth thread chaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510558834.9A CN105057819A (en) | 2015-09-06 | 2015-09-06 | Sawtooth thread chaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105057819A true CN105057819A (en) | 2015-11-18 |
Family
ID=54487449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510558834.9A Pending CN105057819A (en) | 2015-09-06 | 2015-09-06 | Sawtooth thread chaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105057819A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105819A (en) * | 2005-10-12 | 2007-04-26 | Denso Corp | Threading tool, threading device and threading method |
| CN203992691U (en) * | 2014-05-22 | 2014-12-10 | 中国石油集团石油管工程技术研究院 | Sealing thread joint internal thread machining alloy blade |
-
2015
- 2015-09-06 CN CN201510558834.9A patent/CN105057819A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105819A (en) * | 2005-10-12 | 2007-04-26 | Denso Corp | Threading tool, threading device and threading method |
| CN203992691U (en) * | 2014-05-22 | 2014-12-10 | 中国石油集团石油管工程技术研究院 | Sealing thread joint internal thread machining alloy blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |