CN103447638A - Spiral flute tap for machining internal threads - Google Patents
Spiral flute tap for machining internal threads Download PDFInfo
- Publication number
- CN103447638A CN103447638A CN 201310411139 CN201310411139A CN103447638A CN 103447638 A CN103447638 A CN 103447638A CN 201310411139 CN201310411139 CN 201310411139 CN 201310411139 A CN201310411139 A CN 201310411139A CN 103447638 A CN103447638 A CN 103447638A
- Authority
- CN
- China
- Prior art keywords
- operate portions
- tap
- internal thread
- spiral fluted
- thread machining
- 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.)
- Pending
Links
Landscapes
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a spiral flute tap for machining internal threads. The spiral flute tap comprises a handle part and a working part, wherein the handle part and the working part are of an integrated structure, a thread cutting edge and a spiral chip groove are arranged on the working part, a cutting tap is arranged at the front end part of the working part, and a hard wear-resistant coating is arranged on the outer surface of the working part. Through the arrangement, the spiral flute tap for machining the internal threads has the advantages of wear resistance and durable performance and long service life.
Description
Technical field
The present invention relates to the hardware & tools technical field, particularly relate to a kind of internal thread machining spiral fluted tap.
Background technology
The cutter that screw tap is a kind of machining internal thread, can be divided into spiral tap and straight sword screw tap according to shape, according to environment for use, can be divided into set tap and machine tap.Spiral fluted tap is relatively commonly use in screw tap a kind of, because its chip area is helical form, gains the name.The wear-resisting durability of existing spiral fluted tap is not good, and service life is short.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of internal thread machining spiral fluted tap, has wear-resisting durability preferably, long service life.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of internal thread machining spiral fluted tap is provided, comprise: shank and operate portions, described shank and operate portions are monolithic construction, be provided with screw chasing sword and helical flute on described operate portions, be provided with cutting cone on the leading section of described operate portions, on the outer surface of described operate portions, be provided with hard wear-resistant coating.
In a preferred embodiment of the present invention, described hard wear-resistant coating comprises and is arranged on the lip-deep silicon nitride coating of described operate portions and is arranged on the titanium nitride coating on described silicon nitride coating outer surface.
In a preferred embodiment of the present invention, the number of described helical flute is 3.
In a preferred embodiment of the present invention, the helical angle of described helical flute is 22 °.
The invention has the beneficial effects as follows: internal thread machining spiral fluted tap of the present invention has wear-resisting durability preferably, long service life.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of internal thread machining of the present invention with spiral fluted tap one preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, shank, 2, operate portions, 3, the screw chasing sword, 4, helical flute, 5, cutting cone.
The specific embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of internal thread machining spiral fluted tap, comprise: shank 1 and operate portions 2, described shank 1 and operate portions 2 are monolithic construction, be provided with screw chasing sword 3 and helical flute 4 on described operate portions 2, be provided with cutting cone 5 on the leading section of described operate portions 2, on the outer surface of described operate portions 2, be provided with hard wear-resistant coating.
Described hard wear-resistant coating comprises and is arranged on the lip-deep silicon nitride coating of described operate portions and be arranged on the titanium nitride coating on described silicon nitride coating outer surface, has greatly improved hardness and the anti-wear performance on operate portions 2 surfaces.
The number of described helical flute 4 is 3.
The helical angle of described helical flute 4 is 22 °, and chip removal is effective.
Internal thread machining spiral fluted tap of the present invention, have wear-resisting durability preferably, long service life.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (4)
1. an internal thread machining spiral fluted tap, it is characterized in that, comprise: shank and operate portions, described shank and operate portions are monolithic construction, be provided with screw chasing sword and helical flute on described operate portions, be provided with cutting cone on the leading section of described operate portions, on the outer surface of described operate portions, be provided with hard wear-resistant coating.
2. internal thread machining spiral fluted tap according to claim 1, is characterized in that, described hard wear-resistant coating comprises and is arranged on the lip-deep silicon nitride coating of described operate portions and is arranged on the titanium nitride coating on described silicon nitride coating outer surface.
3. internal thread machining spiral fluted tap according to claim 1, is characterized in that, the number of described helical flute is 3.
4. internal thread machining spiral fluted tap according to claim 1, is characterized in that, the helical angle of described helical flute is 22 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310411139 CN103447638A (en) | 2013-09-11 | 2013-09-11 | Spiral flute tap for machining internal threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310411139 CN103447638A (en) | 2013-09-11 | 2013-09-11 | Spiral flute tap for machining internal threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103447638A true CN103447638A (en) | 2013-12-18 |
Family
ID=49730690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310411139 Pending CN103447638A (en) | 2013-09-11 | 2013-09-11 | Spiral flute tap for machining internal threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103447638A (en) |
-
2013
- 2013-09-11 CN CN 201310411139 patent/CN103447638A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| UA85538C2 (en) | high-speed BORing Ceramic BIT | |
| CN205629543U (en) | Processing titanium alloy and carbon fiber reamer for stromatolite | |
| CN203003239U (en) | Novel chamfering cutter for numerically controlled lathe | |
| CN206912325U (en) | Asymmetric double blade milling cutter | |
| CN202571412U (en) | Double-end self-centering tungsten steel drill | |
| CN204234845U (en) | A kind of three sword aluminium milling cutters | |
| CN103447638A (en) | Spiral flute tap for machining internal threads | |
| CN207534016U (en) | Multi-functional compound step drill | |
| CN202752674U (en) | Groove milling cutter for inclined hole drilling | |
| CN103464839A (en) | Composite coating spiral tap | |
| CN201677101U (en) | Diameter guiding combined cutting screw tap | |
| CN104551105A (en) | Dual-bit center drill | |
| CN205362794U (en) | Novel drilling head | |
| CN203470993U (en) | Drill bit | |
| CN204486955U (en) | Tapering extrudes left tooth screw tap | |
| CN204486954U (en) | Tapering thread forming tap | |
| CN102179576A (en) | Guiding compound cutting screw tap based on different diameters | |
| RU2443519C1 (en) | Screw tap | |
| CN205342021U (en) | Drill bit with diamond dust granule | |
| CN205342026U (en) | Fluted drill in processing hole | |
| CN104338995A (en) | Two-edge aluminum-use milling cutter | |
| CN203679434U (en) | Reamer | |
| CN202506878U (en) | Pointed end positioning twist drill | |
| CN203371137U (en) | Screw tap | |
| CN204171379U (en) | A kind of tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |