CN102717157A - Centering screw tap for one-time tapping - Google Patents
Centering screw tap for one-time tapping Download PDFInfo
- Publication number
- CN102717157A CN102717157A CN2012101818579A CN201210181857A CN102717157A CN 102717157 A CN102717157 A CN 102717157A CN 2012101818579 A CN2012101818579 A CN 2012101818579A CN 201210181857 A CN201210181857 A CN 201210181857A CN 102717157 A CN102717157 A CN 102717157A
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- China
- Prior art keywords
- screw tap
- centering
- tap
- tapping
- centering screw
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Abstract
The invention discloses a centering screw tap for one-time tapping. The centering screw tap sequentially comprises a first cone, a second cone and a third cone from left to right; the centering screw tap can be used for tapping at one time; a section of cylinder with centering and guiding functions is ground between the first cone and the second cone; a through hole is formed on the axial line inside the screw tap; a cutting edge is arranged in the through hole; and the centering screw tap is used for small screws with the diameter of below 12 mm (M12). One section of cylinder is arranged at the front end of the centering screw cap disclosed by the invention for centering and guiding; and the centering screw tap has the advantages of one-time tapping, high production efficiency, favorable quality, simple structure, convenience in manufacture, low cost and high work efficiency; and a thread is prevented from being tapped to be tilt and the screw tap is not prone to being damaged.
Description
Technical field
The present invention relates to a kind of screw tap, a kind of specifically centering screw tap of a tapping.
Background technology
As everyone knows, screw tap is to be used for the conventional tool of processing column shape and conical internal thread, also applicable to tapping on lathe; But for the internal thread of some minor threads, screw tap almost is unique process tool, and set tap is arranged in the market; Nut tap etc., but whenever attacking a screw must change screw tap No. two to three times, and the efficient of processing is low like this; Operation is trouble also, in tapping, because plug tap and third hand tap do not have targeting part; Normal appearance is broken screw tap or is attacked phenomenons such as askew to screw, even the size of tapping is not accurate.
Summary of the invention
In order to address the above problem, the invention provides the centering screw tap of a kind of concrete centering and guide effect, can a tapping for little screw.
In order to achieve the above object, the present invention realizes through following technical scheme:
The present invention is a kind of centering screw tap of a tapping; Screw tap comprises nose cone, plug tap and the third hand tap that sets gradually from left to right; A tapping of centering screw tap; Between nose cone and said plug tap, grind one section cylinder with centering and guide effect, on screw tap internal axis line, a through hole is set, through hole is provided with cutting edge.
Further improvement of the present invention is: the Screw of centering screw tap below diameter 12 millimeters (M12) uses.
The invention has the beneficial effects as follows: the front end of screw tap has one section cylinder and does centering and guiding, and this screw tap has can be not askew tap, not fragile screw tap, and a tapping, production efficiency is high, and quality is good, guarantees machining accuracy.
The present invention is simple in structure, and is easy to make, with low cost, and high efficiency guarantees machining accuracy.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an A-A profile of the present invention.
Wherein: 1-nose cone, 2-plug tap, 3-third hand tap, 4-cylinder, 5-through hole, 6-cutting edge.
The specific embodiment
In order to deepen to understanding of the present invention, will combine accompanying drawing and embodiment that the present invention is described in further detail below, this embodiment only is used to explain the present invention, protection scope of the present invention is not constituted to limit.
Shown in Fig. 1-2; The present invention is a kind of centering screw tap of a tapping, and said screw tap comprises nose cone 1, plug tap 2 and the third hand tap 3 that sets gradually from left to right, a tapping of said centering screw tap; Between said nose cone 1 and said plug tap 2, grind one section cylinder 4 with centering and guide effect; On said screw tap internal axis line, a through hole 5 is set, said through hole 5 is provided with cutting edge 6, and the Screw of said centering screw tap below diameter 12 millimeters (M12) uses.The front end of screw tap has one section cylinder and does centering and guiding, and this screw tap has can be not askew tap, not fragile screw tap, and a tapping, production efficiency is high, and quality is good, in processing, will once get through, and does not need the twice working procedure, has guaranteed precision.
The present invention is simple in structure, and is easy to make, with low cost, high efficiency.
Claims (2)
1. centering screw tap of tapping once; Said screw tap includes nose cone (1), plug tap (2) and the third hand tap (3) that the left-hand right side sets gradually; It is characterized in that: a tapping of said centering screw tap; Go up, be provided with between said nose cone (1) and the said plug tap (2) one at said nose cone (1) and have and feel relieved and the cylinder (4) of guide effect, on said screw tap internal axis line, a through hole (5) is set, said through hole (4) is provided with cutting edge (6).
2. according to the centering screw tap of the said a kind of tapping of claim 1, it is characterized in that: said centering screw tap uses at the Screw of diameter below 12 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101818579A CN102717157A (en) | 2012-06-05 | 2012-06-05 | Centering screw tap for one-time tapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101818579A CN102717157A (en) | 2012-06-05 | 2012-06-05 | Centering screw tap for one-time tapping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102717157A true CN102717157A (en) | 2012-10-10 |
Family
ID=46943099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101818579A Pending CN102717157A (en) | 2012-06-05 | 2012-06-05 | Centering screw tap for one-time tapping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102717157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985263A (en) * | 2015-07-23 | 2015-10-21 | 新乡市佳华机械有限公司 | Guide thread restorer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564295Y (en) * | 2002-05-19 | 2003-08-06 | 张光新 | Tap or rimer with two groups of three groups of edges |
| CN2647485Y (en) * | 2003-07-11 | 2004-10-13 | 齐长海 | Double-correction squeezing tap |
| CN1730216A (en) * | 2005-08-23 | 2006-02-08 | 贵州红林机械有限公司 | Perforated screw-tap |
| US20070101787A1 (en) * | 2005-11-01 | 2007-05-10 | Honda Motor Co., Ltd. | Thread forming method, thread forming device, and thread forming tool |
| US20070207865A1 (en) * | 2006-03-06 | 2007-09-06 | Emuge-Werk Richard Glimpel Gmbh & Co. Kg Fabrik Fur Prazisionswerkzeuge | Combination Tool with Front-Face Recess |
| CN202174307U (en) * | 2011-04-27 | 2012-03-28 | 扬州江宇刃具有限公司 | Thread-repairing screw tap |
| CN202726215U (en) * | 2012-06-05 | 2013-02-13 | 江苏天工工具有限公司 | Once centering screw centering screw tap |
-
2012
- 2012-06-05 CN CN2012101818579A patent/CN102717157A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564295Y (en) * | 2002-05-19 | 2003-08-06 | 张光新 | Tap or rimer with two groups of three groups of edges |
| CN2647485Y (en) * | 2003-07-11 | 2004-10-13 | 齐长海 | Double-correction squeezing tap |
| CN1730216A (en) * | 2005-08-23 | 2006-02-08 | 贵州红林机械有限公司 | Perforated screw-tap |
| US20070101787A1 (en) * | 2005-11-01 | 2007-05-10 | Honda Motor Co., Ltd. | Thread forming method, thread forming device, and thread forming tool |
| US20070207865A1 (en) * | 2006-03-06 | 2007-09-06 | Emuge-Werk Richard Glimpel Gmbh & Co. Kg Fabrik Fur Prazisionswerkzeuge | Combination Tool with Front-Face Recess |
| CN202174307U (en) * | 2011-04-27 | 2012-03-28 | 扬州江宇刃具有限公司 | Thread-repairing screw tap |
| CN202726215U (en) * | 2012-06-05 | 2013-02-13 | 江苏天工工具有限公司 | Once centering screw centering screw tap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985263A (en) * | 2015-07-23 | 2015-10-21 | 新乡市佳华机械有限公司 | Guide thread restorer |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |