CN205008699U - Fractal screw tap - Google Patents
Fractal screw tap Download PDFInfo
- Publication number
- CN205008699U CN205008699U CN201520649869.9U CN201520649869U CN205008699U CN 205008699 U CN205008699 U CN 205008699U CN 201520649869 U CN201520649869 U CN 201520649869U CN 205008699 U CN205008699 U CN 205008699U
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- Prior art keywords
- screw
- screw thread
- cutting edge
- thread
- fractal
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Abstract
The utility model discloses a fractal screw tap includes toper processing subtotal check -up part, toper processing part distributes has the different processing screw of several side projection, the check -up part is arranged there is the calibration screw thread, screw thread projected outline line looks adaptation is processed with processing work piece contact segment's projected outline line and quilt to the calibration screw thread, reach the mesh that reduces the cutting resistance, guarantees to cut rotational speed, protection production facility and guarantee product quality.
Description
Technical field
The utility model relates to Machining Technology field, is specifically related to the fractal screw tap of one for screw thread process.
Background technology
Existing screw tap, adopt successively to cut from cuspad at the bottom of tooth, screw tap conical section cutting edge is with the profile line length of absorption surface, in wide cutting, cutting resistance is large, easily produces bonding due to thermal friction, further increases the resistance of cutting, even cause screw tap to rupture, thus limit low cutting rotational speeds; Simultaneously because the outer surface of taper processing part is tapered slope, during with absorption surface, need very large press-in load, easily produce tooth thin, because the position of initially playing tooth is not easily determined, easily cause the cusp partial injury of product; In addition screw tap check part is consistent with the full-size of taper processing part, in process, due to the elasticity of workpiece material, or the wearing and tearing of conical section, the outline of check part cutting edge is fitted completely with workpiece, lubrication bad environments, further increases moment of torsion, impacts to the quality of product.
Utility model content
For solving the problems of the technologies described above, the utility model proposes fractal screw tap, the object of reduce cutting resistance to reach, ensure cutting rotational speeds, protect production equipment and guarantee product quality.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of fractal screw tap, include taper processing part and check part, described taper processing part is distributed with the different machining screw of several lateral projection, described check part is arranged with calibration screw thread, and contour projection and the processed threaded projection outline line of described calibration screw thread and processing work contact portion are suitable.
As preferably, the screw thread of described taper processing part prolongs the adjacent cutting edge on helix, and its perspective plane presents non-increasing, non-decreasing arrangement.
As preferably, described machining screw is distributed with the first thread set, the second thread set and the 3rd thread set successively from top, described first thread set includes the sharp-pointed outstanding cutting edge and flat nick that are arranged in order, and the top of described machining screw is sharp-pointed outstanding cutting edge; Described second thread set includes the double blade and high flat edge that are arranged in order, and double blade is adjacent with described flat nick; Described 3rd screw thread includes cutting edge, and described cutting edge is adjacent with described high flat edge.
As preferably, the inside of described calibration screw thread is provided with chip area.
By technique scheme, the utility model is divided into multiple shape being convenient to cut according to the perspective plane in region to be processed, by changing the shape of screw tap hand of helix each cutting edge adjacent, realizes the layered cutting treating machining area; Two groups of cutting edges of the adjacent chip area of screw tap check part; with screw thread middle longitude for boundary; to reduce respectively beyond middle longitude and the size of profile of tooth outer contour within middle longitude; two groups of outline lines intersect on middle longitude; and match with thread contour line, reach the object reducing cutting resistance, ensure cutting rotational speeds, protect production equipment and guarantee product quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
The structural representation of Fig. 1 fractal screw tap disclosed in the utility model embodiment;
Fig. 2 is that the screw thread of the disclosed sharp-pointed outstanding cutting edge of the utility model embodiment surveys projection and machining area schematic diagram;
The screw thread of Fig. 3 flat nick disclosed in the utility model embodiment surveys projection and machining area schematic diagram;
The screw thread of Fig. 4 double blade disclosed in the utility model embodiment surveys projection and machining area schematic diagram;
The screw thread of Fig. 5 high flat edge disclosed in the utility model embodiment surveys projection and machining area schematic diagram;
The screw thread of Fig. 6 cutting edge disclosed in the utility model embodiment surveys projection and machining area schematic diagram;
Numeral and the corresponding component title represented by letter in figure:
1. calibrate the screw thread 2. sharply outstanding high flat edge of cutting edge 3. flat nick 4. double blade 5.
6. cutting edge 7. chip area
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
The utility model provides fractal screw tap, and its operation principle is divided into multiple shape being convenient to cut according to the perspective plane in region to be processed, by changing the shape of screw tap hand of helix each cutting edge adjacent, realizes the layered cutting treating machining area; Two groups of cutting edges of the adjacent chip area of screw tap check part; with screw thread middle longitude for boundary; to reduce respectively beyond middle longitude and the size of profile of tooth outer contour within middle longitude; two groups of outline lines intersect on middle longitude; and match with thread contour line, reach the object reducing cutting resistance, ensure cutting rotational speeds, protect production equipment and guarantee product quality.
Below in conjunction with embodiment and detailed description of the invention, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of fractal screw tap, it is characterized in that, include taper processing part and check part, described taper processing part is distributed with the different machining screw of several lateral projection, described check part is arranged with calibration screw thread 1, and contour projection and the processed threaded projection outline line of described calibration screw thread and processing work contact portion are suitable.
It should be noted that the screw thread of described taper processing part prolongs the adjacent cutting edge on helix, its perspective plane presents non-increasing, non-decreasing arrangement.
It should be noted that, described machining screw is distributed with the first thread set, the second thread set and the 3rd thread set successively from top, described first thread set includes the sharp-pointed outstanding cutting edge 2 and flat nick 3 that are arranged in order, and the top of described machining screw is sharp-pointed outstanding cutting edge 2; Described second thread set includes the double blade 4 and high flat edge 5 that are arranged in order, and double blade 4 is adjacent with described flat nick 3; Described 3rd screw thread includes cutting edge 6, and described cutting edge 6 is adjacent with described high flat edge 5.
It should be noted that the inside of described calibration screw thread 3 is provided with chip area 4.
Concrete use step of the present utility model is as follows: more as shown in figs 1 to 6, for machining area lateral projection for Delta Region, machining area is divided into three rows totally 7 regions, the head end of taper processing part is sharp-pointed outstanding cutting edge 2, first machine away sections bottom in screw thread preparation, cut away two little triangles; Side next-door neighbour's flat nick 3 of sharp-pointed outstanding cutting edge 2, flat nick 3 cuts the part of two triangle intermediate projections; Speeding up is double blade 4, continues two triangles of cutting edge in the middle part of the region after cutting, be more then that high flat edge 5 carries out remainder in the middle part of cutting zone according to sharp-pointed outstanding cutting edge 2 and flat nick 3; Finally cut by top, cutting edge 6 pairs of regions.
Screw tap check part, with one group of cutting edge that chip area 7 is adjacent, partial contour within screw thread middle longitude, is slightly less than the profile of machining screw, when workpiece passes through, only has the tip portions beyond screw thread middle longitude to follow absorption surface; With other one group of cutting edge that chip area is adjacent, part beyond screw thread middle longitude, cut, when workpiece passes through, only have the tooth bottom part in screw thread within warp and absorption surface.
By above mode, fractal screw tap provided by the utility model, is divided into multiple shape being convenient to cut according to the perspective plane in region to be processed, by changing the shape of screw tap hand of helix each cutting edge adjacent, realizes the layered cutting treating machining area; Two groups of cutting edges of the adjacent chip area of screw tap check part; with screw thread middle longitude for boundary; to reduce respectively beyond middle longitude and the size of profile of tooth outer contour within middle longitude; two groups of outline lines intersect on middle longitude; and match with thread contour line, reach the object reducing cutting resistance, ensure cutting rotational speeds, protect production equipment and guarantee product quality.
Above-described is only the preferred embodiment of fractal screw tap disclosed in the utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. a fractal screw tap, it is characterized in that, include taper processing part and check part, described taper processing part is distributed with the different machining screw of the several lateral projections suitable from workpiece, described check part is arranged with calibration screw thread, and contour projection and the processed threaded projection outline line of described calibration screw thread and processing work contact portion are suitable.
2. fractal screw tap according to claim 1, is characterized in that, the screw thread of described taper processing part prolongs the adjacent cutting edge on helix, and its perspective plane presents non-increasing, non-decreasing arrangement.
3. fractal screw tap according to claim 1, it is characterized in that, described machining screw is distributed with the first thread set, the second thread set and the 3rd thread set successively from top, described first thread set includes the sharp-pointed outstanding cutting edge and flat nick that are arranged in order, and the top of described machining screw is sharp-pointed outstanding cutting edge; Described second thread set includes the double blade and high flat edge that are arranged in order, and double blade is adjacent with described flat nick; Described 3rd screw thread includes cutting edge, and described cutting edge is adjacent with described high flat edge.
4. fractal screw tap according to claim 1, is characterized in that, the inside of described calibration screw thread is provided with chip area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649869.9U CN205008699U (en) | 2015-08-18 | 2015-08-18 | Fractal screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520649869.9U CN205008699U (en) | 2015-08-18 | 2015-08-18 | Fractal screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205008699U true CN205008699U (en) | 2016-02-03 |
Family
ID=55207327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520649869.9U Expired - Fee Related CN205008699U (en) | 2015-08-18 | 2015-08-18 | Fractal screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205008699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856917A (en) * | 2018-08-20 | 2018-11-23 | 圆兴(厦门)精密工具有限公司 | A kind of screw tap |
-
2015
- 2015-08-18 CN CN201520649869.9U patent/CN205008699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856917A (en) * | 2018-08-20 | 2018-11-23 | 圆兴(厦门)精密工具有限公司 | A kind of screw tap |
| CN108856917B (en) * | 2018-08-20 | 2024-01-09 | 圆兴(厦门)精密工具有限公司 | 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: 20160203 Termination date: 20210818 |