CN202780096U - Ground titanized spiral pointed machine screw tap - Google Patents
Ground titanized spiral pointed machine screw tap Download PDFInfo
- Publication number
- CN202780096U CN202780096U CN 201220450817 CN201220450817U CN202780096U CN 202780096 U CN202780096 U CN 202780096U CN 201220450817 CN201220450817 CN 201220450817 CN 201220450817 U CN201220450817 U CN 201220450817U CN 202780096 U CN202780096 U CN 202780096U
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- chip area
- tapping section
- screw tap
- thread
- threads
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Abstract
The utility model relates to a ground titanized spiral pointed machine screw tap which solves the technical problem that surfaces of processed threads are relatively rough and untidy as metal chips enter positions among a workpiece and the threads easily when the screw tap is used for processing screw threads on a wall of a through hole in the prior art. The ground titanized spiral pointed machine screw tap comprises a tapping part, wherein a chip discharge groove and a thread part with threads are formed on the tapping part; the chip discharge groove penetrates through the thread part; cutting edges are formed at joints among the chip discharge groove and the threads; and a cutting edge positioned at the end part of the tapping part is oblique.
Description
Technical field
The utility model belongs to the conventional tool technical field of machining internal thread, refers in particular to a kind of titanizing spiral shell point machine tap that grinds.
Background technology
Screw tap is extensively used as the conventional tool of machining internal thread.Screw tap in the market mainly is comprised of clamping part and tapping section, and tapping section has spiro tooth part and chip area, and this chip area extends axially and runs through spiro tooth part along tapping section.During machining screw, the spiro tooth part in the tapping section cuts workpiece the screw tap that uses this structure, thereby processes screw thread at workpiece on the hole wall of through hole.Add and produce inevitably metal fillings man-hour, yet chip area is a kind of straight shape groove, when process equipment drives the screw tap high speed rotating, metal fillings is difficult to outside this chip area is discharged work piece, metal fillings enters between workpiece and the thread easily, causes the thread surface that processes comparatively coarse, irregular.
Summary of the invention
The purpose of this utility model provide a kind of metal fillings discharge easily workpiece make outward the thread that processes more smooth grind titanizing spiral shell point machine tap.
The purpose of this utility model is achieved in that a kind of titanizing spiral shell point machine tap that grinds, comprise tapping section, has chip area in the described tapping section and with the spiro tooth part of thread, described chip area runs through described spiro tooth part, form cutting edge at described chip area and the adjacent place of described thread, the cutting edge that is positioned at the end of tapping section is inclined to set.
On the basis of such scheme and as the preferred version of such scheme: described chip area is formed by the first chip area and the second chip removal groove, described the first chip area extends axially and runs through described spiro tooth part along described tapping section, front end and described the second chip area that described the second chip area is positioned at described tapping section are inclined to set, and form the described cutting edge that is inclined to set at described the second chip area and described thread intersection.
On the basis of such scheme and as the preferred version of such scheme: the outer surface in described tapping section is provided with titanium alloy layer.
The utility model compared to existing technology outstanding and useful technique effect is: the utility model has adopted the cutting edge that tilts at the front end of tapping section, so that the metal fillings that produces during machining screw on through hole is discharged outside the work piece from the front of this tapping section, metal fillings can not be trapped in the chip area, overcome that metal fillings enters the technical problem of workpiece and thread easily in the prior art, thereby reached the more smooth purpose of thread that processes.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing;
As shown in Figure 1, the titanizing spiral shell point machine tap that grinds of the present utility model, comprise tapping section 1, has chip area 21 in the tapping section 1 and with the spiro tooth part 22 of thread 221, chip area 21 runs through spiro tooth part 22, form cutting edge 3 at chip area 21 and thread 221 adjacent places, the cutting edge 31 that is positioned at the end of tapping section is inclined to set, and namely cutting edge is not parallel to the axis of spiro tooth part.The utility model has adopted the cutting edge that tilts at the front end of tapping section, so that the metal fillings that produces during machining screw on through hole is discharged outside the work piece from the front of this tapping section, metal fillings can not be trapped in the chip area, overcome that metal fillings enters the technical problem of workpiece and thread easily in the prior art, thereby reached the more smooth purpose of thread that processes.
As shown in Figure 1, chip area 21 is formed by the first chip area 211 and the second chip area 212, the first chip area 211 extends axially and runs through spiro tooth part 22 along tapping section 1, front end and the second chip area that the second chip area 212 is positioned at tapping section 1 are inclined to set, and namely the second chip area is not parallel to the axis of tapping section.Form the cutting edge that is inclined to set at the second chip area and thread intersection.Certainly, the cutting edge that is inclined to set also can be formed by alternate manner.
In order to improve the service life of this screw tap, this screw tap can also be provided with titanium alloy layer at the outer surface of tapping section 1.Adopt the titanium alloy layer structure, so that this grinding machine contacts with work piece with titanium alloy layer with wear-resisting screw tap, moreover the hardness greater than tapping section of this titanium alloy layer, so that this grinding machine is better with the anti-wear performance of wear-resisting screw tap, longer service life.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit according to this protection domain of the present utility model, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.
Claims (3)
1. one kind grinds titanizing spiral shell point machine tap, comprise tapping section, has chip area in the described tapping section and with the spiro tooth part of thread, described chip area runs through described spiro tooth part, form cutting edge at described chip area and the adjacent place of described thread, it is characterized in that: the cutting edge that is positioned at the end of tapping section is inclined to set.
2. the titanizing spiral shell point machine tap that grinds according to claim 1, it is characterized in that: described chip area is formed by the first chip area and the second chip removal groove, described the first chip area extends axially and runs through described spiro tooth part along described tapping section, front end and described the second chip area that described the second chip area is positioned at described tapping section are inclined to set, and form the described cutting edge that is inclined to set at described the second chip area and described thread intersection.
3. the titanizing spiral shell point machine tap that grinds according to claim 1 and 2 is characterized in that: the outer surface in described tapping section is provided with titanium alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450817 CN202780096U (en) | 2012-09-05 | 2012-09-05 | Ground titanized spiral pointed machine screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450817 CN202780096U (en) | 2012-09-05 | 2012-09-05 | Ground titanized spiral pointed machine screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780096U true CN202780096U (en) | 2013-03-13 |
Family
ID=47807437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450817 Expired - Fee Related CN202780096U (en) | 2012-09-05 | 2012-09-05 | Ground titanized spiral pointed machine screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710461A (en) * | 2014-12-04 | 2016-06-29 | 焱智精密机械（上海）有限公司 | Special screw tap for small deep-hole threads of stainless steel workpiece and machining method using special screw tap |
-
2012
- 2012-09-05 CN CN 201220450817 patent/CN202780096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710461A (en) * | 2014-12-04 | 2016-06-29 | 焱智精密机械（上海）有限公司 | Special screw tap for small deep-hole threads of stainless steel workpiece and machining method using special 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 |
Granted publication date: 20130313 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |