CN202726216U - Machine screw tap - Google Patents
Machine screw tap Download PDFInfo
- Publication number
- CN202726216U CN202726216U CN 201220407601 CN201220407601U CN202726216U CN 202726216 U CN202726216 U CN 202726216U CN 201220407601 CN201220407601 CN 201220407601 CN 201220407601 U CN201220407601 U CN 201220407601U CN 202726216 U CN202726216 U CN 202726216U
- Authority
- CN
- China
- Prior art keywords
- screw tap
- cutting edge
- cutting edges
- tap
- 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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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a machine screw tap comprising a screw tap body made of high-speed steel. The screw tap body comprises a clamping portion with a square section and a cylindrical working portion. Four groups of screw tap cutting edges are uniformly distributed on the outer ring of the working portion, a groove with circular section is formed between two adjacent groups of screw tap cutting edges, and the front angle of each screw tap cutting edge is 70 degrees. The front angle of each screw tap cutting edges is controlled, so that the cutting edges are guaranteed to be sharp. Further, the screw tap body is made of high-speed steel, hardness and strength of the screw tap are guaranteed, and the service life of the screw tap is prolonged.
Description
Technical field
The utility model relates to a kind of machine tap.
Background technology
The machine tap in market is unreasonable owing to structure arranges now, and service life is not long, just can't continue tapping after using a period of time, and because material selection is incorrect, the screw tap of having to often change causes the increase of production cost.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of machine tap is provided, make screw tap sharper, and prolong the service life of screw tap.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of machine tap, has the screw tap body, described screw tap body comprises clamping part and the cylindrical operate portions that the cross section is square, be evenly equipped with four cocainines cone cutting edge on the outer ring of described operate portions, be formed with the cross section between the two adjacent groups screw tap cutting edge and be circular groove, the size of the anterior angle of described screw tap cutting edge is 45 °～80 °, and described screw tap body is the high-speed steel material.
Further, the size of the anterior angle of described screw tap cutting edge is 70 °.
The beneficial effects of the utility model are: a kind of machine tap is provided, and the angle of control screw tap cutting edge anterior angle guarantees that it is sharp, and adopts the high-speed steel material, guarantees hardness and the intensity of screw tap, prolongs the service life of screw tap.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of machine tap;
Fig. 2 is that A-A among Fig. 1 is to view.
Wherein: 1, screw tap body, 2, operate portions, 3, clamping part, 4, the screw tap cutting edge, 41, anterior angle.
The specific embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of machine tap shown in Figure 2 such as Fig. 1, has screw tap body 1, screw tap body 1 comprises clamping part 3 and the cylindrical operate portions 2 that the cross section is square, be evenly equipped with four cocainines cone cutting edge 4 on the outer ring of operate portions 2, be formed with the cross section between the two adjacent groups screw tap cutting edge 4 and be circular groove, the size of the anterior angle 41 of screw tap cutting edge 4 is 70 °, and screw tap body 1 adopts the high-speed steel material to make.
The angle of the anterior angle 41 by control screw tap cutting edge 4, guarantee that it is sharp, and adopt the high-speed steel material, guarantee hardness and the intensity of screw tap, prolong the service life of screw tap, being formed with the cross section between the adjacent two cocainines cone cutting edge 4 is the discharge that circular groove can effectively guarantee iron filings, and it is stuck to place screw tap, affects the quality of tapping.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. machine tap, it is characterized in that: have screw tap body (1), described screw tap body (1) comprises clamping part (3) and the cylindrical operate portions (2) that the cross section is square, be evenly equipped with four cocainines cone cutting edge (4) on the outer ring of described operate portions (2), be formed with the cross section between the two adjacent groups screw tap cutting edge (4) and be circular groove, the size of the anterior angle (41) of described screw tap cutting edge (4) is 45 °～80 °, and described screw tap body (1) is the high-speed steel material.
2. a kind of machine tap according to claim 1, it is characterized in that: the size of the anterior angle (41) of described screw tap cutting edge (4) is 70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407601 CN202726216U (en) | 2012-08-16 | 2012-08-16 | Machine screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407601 CN202726216U (en) | 2012-08-16 | 2012-08-16 | Machine screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202726216U true CN202726216U (en) | 2013-02-13 |
Family
ID=47651965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407601 Expired - Fee Related CN202726216U (en) | 2012-08-16 | 2012-08-16 | Machine screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202726216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209604A (en) * | 2013-06-05 | 2014-12-17 | 苏州锑玛精密机械有限公司 | Tap |
-
2012
- 2012-08-16 CN CN 201220407601 patent/CN202726216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209604A (en) * | 2013-06-05 | 2014-12-17 | 苏州锑玛精密机械有限公司 | Tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130816 |