CN205650914U - Extrusion screw tap - Google Patents
Extrusion screw tap Download PDFInfo
- Publication number
- CN205650914U CN205650914U CN201620256717.7U CN201620256717U CN205650914U CN 205650914 U CN205650914 U CN 205650914U CN 201620256717 U CN201620256717 U CN 201620256717U CN 205650914 U CN205650914 U CN 205650914U
- Authority
- CN
- China
- Prior art keywords
- screw tap
- tooth portion
- trough rim
- extruding screw
- utility
- 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 an extrusion screw tap, including a screw tap main part, a screw tap main part one end is equipped with a clamping part, supplies an instrument clamp to establish, the other end of screw tap main part is equipped with a polygon cylinder's tooth portion, each limit of tooth portion is equipped with the screw thread section of attacking the tooth screw thread including encircling, and is adjacent be provided with a cooling olein between the screw section, it follows to attack the degree of depth of tooth screw thread the outer end of screw thread section is increaseed toward interior gradually. The utility model discloses the internal thread is easily processed in the simple structure practicality, and the air defense is changeed, just processing, positioning accuracy height.
Description
Technical field
This utility model relates to machine tool, it particularly relates to a kind of extruding screw tap.
Background technology
Screw tap is also known as screw tap, and screw tap is the cutter of a kind of topmost machining internal thread.Owing to screw compresses built-in length during screw tap, it is impossible to guarantee that screw tap rotates coaxially with tapping head, swing about screw tap, cause tooth position eccentric or cross cutting, affect machining accuracy.Meanwhile, swivel nut locking force hour, often occurs screw tap holding then tap holder continues the idle running situation that rotates, causes processing bad；When locking force is big, elongated screw tap easily snaps off, then man-hour is lost, increases cost.
For the problem in correlation technique, effective solution is the most not yet proposed.
Utility model content
For the above-mentioned technical problem in correlation technique, this utility model provides one to be prone to machining internal thread, slide system and processing, the extruding screw tap that positioning precision is high.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of extruding screw tap, including a screw tap main body, described screw tap main body one end is provided with a clamping part, for an instrument sandwiched, the other end of described screw tap main body is provided with the tooth portion of a polygon cylinder, the every of described tooth portion is provided with a cooling olein while including the thread segment being equipped with tapping screw thread between adjacent described thread segment, the degree of depth of described tapping screw thread is gradually increased inside from the outer end of described thread segment.
Further, described cooling olein includes left trough rim and right trough rim, and right trough rim described in the depth ratio of described left trough rim is big.
Further, described left trough rim is 75-90 ° with the angle of described right trough rim.
Preferably, described tooth portion is a pentagon cylinder.
Preferably, described tooth portion is a tetragon cylinder.
Further, the end in described tooth portion forms a burnishing surface.
Further, the terminal edge in described tooth portion is provided with blade part.
Further, the top in described tooth portion is provided centrally with inverted draw cut.
Preferably, described screw tap main body is that high-speed steel is made.
The beneficial effects of the utility model: this utility model is simple and practical, it is easy to machining internal thread, slide system, and processing, positioning precision height.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation according to the extruding screw tap described in this utility model embodiment；
Fig. 2 is the top view according to the extruding screw tap described in this utility model embodiment.
In figure:
1, screw tap main body；2, clamping part；3, tooth portion；4, thread segment；5, cooling olein；6, left trough rim；7, right trough rim；8, blade part；9, inverted draw cut.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained, broadly fall into the scope of this utility model protection.
As depicted in figs. 1 and 2, according to a kind of extruding screw tap described in this utility model embodiment, including a screw tap main body 1, described screw tap main body 1 one end is provided with a clamping part 2, for an instrument sandwiched, the other end of described screw tap main body 1 is provided with the tooth portion 3 of a polygon cylinder, every thread segment 4 including being equipped with tapping screw thread in described tooth portion 3, being provided with a cooling olein 5 between adjacent described thread segment 4, the degree of depth of described tapping screw thread is gradually increased inside from the outer end of described thread segment 4.
Described cooling olein 5 includes left trough rim 6 and right trough rim 7, and right trough rim 7 described in the depth ratio of described left trough rim 6 is big.
Described left trough rim 6 is 75-90 ° with the angle of described right trough rim 7.
Described tooth portion 3 is a pentagon cylinder.
Or, described tooth portion 3 is a tetragon cylinder.
The end in described tooth portion 3 forms a burnishing surface.
The terminal edge in described tooth portion 3 is provided with blade part 8.
The top in described tooth portion 3 is provided centrally with inverted draw cut 9.
Described screw tap main body 1 is made for high-speed steel.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (9)
1. an extruding screw tap, it is characterized in that, including a screw tap main body (1), described screw tap main body (1) one end is provided with a clamping part (2), for an instrument sandwiched, the other end of described screw tap main body (1) is provided with the tooth portion (3) of a polygon cylinder, described tooth portion (3) every while including the thread segment (4) being equipped with tapping screw thread, being provided with a cooling olein (5) between adjacent described thread segment (4), the degree of depth of described tapping screw thread is gradually increased inside from the outer end of described thread segment (4).
Extruding screw tap the most according to claim 1, it is characterised in that described cooling olein (5) includes left trough rim (6) and right trough rim (7), right trough rim (7) described in the depth ratio of described left trough rim (6) is big.
Extruding screw tap the most according to claim 2, it is characterised in that described left trough rim (6) is 75-90 ° with the angle of described right trough rim (7).
Extruding screw tap the most according to claim 1, it is characterised in that described tooth portion (3) is a pentagon cylinder.
5. according to the extruding screw tap described in claim 1 or 4, it is characterised in that described tooth portion (3) is a tetragon cylinder.
6. according to the extruding screw tap described in claim 1 or 4, it is characterised in that the end of described tooth portion (3) forms a burnishing surface.
7. according to the extruding screw tap described in claim 1 or 4, it is characterised in that the terminal edge of described tooth portion (3) is provided with blade part (8).
8. according to the extruding screw tap described in claim 1 or 4, it is characterised in that the top of described tooth portion (3) is provided centrally with inverted draw cut (9).
Extruding screw tap the most according to claim 1, it is characterised in that described screw tap main body (1) is that high-speed steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256717.7U CN205650914U (en) | 2016-03-30 | 2016-03-30 | Extrusion screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256717.7U CN205650914U (en) | 2016-03-30 | 2016-03-30 | Extrusion screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205650914U true CN205650914U (en) | 2016-10-19 |
Family
ID=57389962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256717.7U Expired - Fee Related CN205650914U (en) | 2016-03-30 | 2016-03-30 | Extrusion screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205650914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798404A (en) * | 2016-03-30 | 2016-07-27 | 广东特普丝精密工具有限公司 | Extrusion screw tap |
-
2016
- 2016-03-30 CN CN201620256717.7U patent/CN205650914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798404A (en) * | 2016-03-30 | 2016-07-27 | 广东特普丝精密工具有限公司 | Extrusion screw tap |
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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: 20161019 Termination date: 20190330 |