CN216177354U - Screw tap - Google Patents
Screw tap Download PDFInfo
- Publication number
- CN216177354U CN216177354U CN202122547026.6U CN202122547026U CN216177354U CN 216177354 U CN216177354 U CN 216177354U CN 202122547026 U CN202122547026 U CN 202122547026U CN 216177354 U CN216177354 U CN 216177354U
- Authority
- CN
- China
- Prior art keywords
- tap
- cutting
- calibration
- cutting edge
- calibrating
- 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.)
- Active
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model discloses a screw tap, which relates to the technical field of hardware tools and comprises a screw tap body; the screw tap comprises a screw tap body, a calibrating part body, a screw tap body and a screw tap body, wherein the screw tap body is connected with the screw tap body; the cutting part is connected with one end, far away from the tap body, of the calibration part body. The technical effect of the utility model is that the service life of the calibration part of the tap is long aiming at the technical problem that the service life of the calibration part of the tap is short.
Description
Technical Field
The utility model relates to the technical field of hardware tools, in particular to a screw tap.
Background
A tap is a hardware tool for processing internal threads, and is classified into a spiral tap, an edge inclination tap, a straight tap, a pipe thread tap, and the like according to the shape, and is one of the most popular processing tools used by manufacturers in tapping.
However, the contact area between the calibration portion of the tap and the workpiece is large, and the friction time between the calibration portion of the tap and the workpiece is long during tapping, so that the calibration portion of the tap is easily worn, and the service life of the calibration portion of the tap is short.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model provides a screw tap, aiming at the technical problem that the service life of a calibration part of the screw tap is short.
2. Technical scheme
In order to solve the problems, the technical scheme provided by the utility model is as follows:
a tap, comprising:
a tap body;
the screw tap comprises a screw tap body, a calibrating part body and a screw tap body, wherein the screw tap body is connected with the screw tap body, the calibrating part body is provided with a first calibrating cutting edge and a second calibrating cutting edge, and a first groove is formed between the first calibrating cutting edge and the second calibrating cutting edge;
the cutting part is connected with one end, far away from the tap body, of the calibration part body.
Optionally, the first calibration blade zone and the second calibration blade zone are sequentially arranged on the calibration part body along the rotation direction of the screw tap, and the second calibration blade zone is provided with a negative rake angle α.
Optionally, the cutting part comprises a cutting part body connected with the calibration part body, a first cutting edge zone and a second cutting edge zone are arranged on the cutting part body, and a second groove communicated with the first groove is arranged between the first cutting edge zone and the second cutting edge zone.
Optionally, the negative rake angle α has a value in the range of 5 to 10 °.
Optionally, the first cutting edge zone and the second cutting edge zone are sequentially arranged on the cutting part body along the rotation direction of the tap, and a distance S between the first cutting edge zone and the center of the tap body1Is less than the distance between the second cutting edge zone and the center of the tap body2。
Optionally, theThe distance is S1And said distance is two S2The difference is in the range of 0.05-0.1 mm.
Optionally, a first chip groove is formed between adjacent calibration part bodies, and a second chip groove communicated with the first chip groove is formed between adjacent cutting parts.
Optionally, the calibration part bodies are uniformly distributed on the tap body along the circumference.
Optionally, the cutting portions are evenly distributed on the tap body along the circumference.
Optionally, an assembling portion is arranged at one end, away from the calibrating portion body, of the tap body.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: the first groove can effectively reduce the contact area between the first calibration blade zone and the second calibration blade zone and a workpiece, so that the friction time between the first calibration blade zone and the second calibration blade zone and the workpiece is reduced, further, the first calibration blade zone and the second calibration blade zone are effectively prevented from being worn, the service lives of the first calibration blade zone and the second calibration blade zone are prolonged, the first groove is also used for containing cutting fluid, the cooling and lubricating effects are achieved, the friction between the first calibration blade zone and the second calibration blade zone and the workpiece is favorably reduced, and the service life of the calibration part is effectively prolonged by combining the calibration part body, the first calibration blade zone, the second calibration blade zone and the groove.
Drawings
FIG. 1 is a schematic structural view of a tap according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a tap according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of the present invention;
FIG. 4 is an enlarged view of B according to the embodiment of the present invention;
in the figure: 1. a tap body; 2. a calibration unit; 21. a calibration part body; 22. calibrating a first cutting edge; 23. calibrating a second cutting edge; 24. a first groove; 3. a cutting portion; 31. cutting the first cutting edge zone; 32. cutting a second cutting edge zone; 33. a second groove; 34. a cutting part body; 4. a first chip groove; 5. a second chip groove; 6. and an assembling part.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.
Example 1
With reference to fig. 1-4, the present embodiment provides a tap comprising:
a tap body 1;
the calibration part body 21 is connected with the tap body 1, a first calibration blade area 22 and a second calibration blade area 23 are arranged on the calibration part body 21, and a first groove 24 is arranged between the first calibration blade area 22 and the second calibration blade area 23;
the cutting part 3, the cutting part 3 and one end of the calibration part body 21 far away from the tap body 1 are connected.
Specifically, the cutting part 3 is supported by the tap body 1, so that the stability of the cutting part 3 can be ensured, and the cutting part 3 is used for tapping a machined part; the calibration part body 21 is supported by the tap body 1, so that the stability of the calibration part body 21 can be ensured; the first calibration blade 22 and the second calibration blade 23 are supported by the calibration part body 21, so that the stability of the first calibration blade 22 and the second calibration blade 23 can be ensured, and the first calibration blade 22 and the second calibration blade 23 are used for calibrating the part of the machined part subjected to tapping; the first groove 24 can effectively reduce the contact area between the first calibration blade 22 and the second calibration blade 23 and a workpiece, so that the friction time between the first calibration blade 22 and the second calibration blade 23 and the workpiece is reduced, the first calibration blade 22 and the second calibration blade 23 are effectively prevented from being worn, the service lives of the first calibration blade 22 and the second calibration blade 23 are prolonged, and the first groove 24 is also used for containing cutting fluid, plays a role in cooling and lubricating and is beneficial to reducing the friction between the first calibration blade 22 and the second calibration blade 23 and the workpiece; the calibration part 2 is composed of the calibration part body 21, the first calibration blade 22, the second calibration blade 23 and the first groove 24, so that the service life of the calibration part 2 is effectively prolonged.
Further, along the rotation direction of the tap, a first calibration blade 22 and a second calibration blade 23 are sequentially arranged on the calibration part body 21, and a negative rake angle alpha is arranged on the second calibration blade 23.
Specifically, the first calibration margin 22 is used for the first calibration, and the second calibration margin 23 is used for the second calibration, so that the reliability of the calibration can be effectively improved through double calibration; the negative rake angle alpha can guarantee the stability of the negative rake angle alpha through the support of the second calibration blade zone 23, the negative rake angle alpha can prevent the second calibration blade zone 23 from carrying out secondary cutting on the machined part, the second calibration blade zone 23 can repair and cut small burrs in the machined part, and the burrs are prevented from extruding the first calibration blade zone 22 when the screw tap retracts, so that the first calibration blade zone 22 is damaged.
Further, the cutting part 3 includes a cutting part body 34 connected to the calibration part body 21, the cutting part body 34 is provided with a first cutting edge 31 and a second cutting edge 32, and a second groove 33 communicating with the first groove 24 is provided between the first cutting edge 31 and the second cutting edge 32.
Specifically, the cutting part body 34 is supported by the calibration part body 21, so that the stability of the cutting part body 34 can be ensured, and the cutting part body 34 is used for supporting the first cutting edge zone 31 and the second cutting edge zone 32; the first cutting edge zone 31 and the second cutting edge zone 32 are used for tapping a machined piece, double cutting is achieved, and cutting completeness can be improved; the second groove 33 is used for containing the cutting fluid and has a cooling and lubricating effect, and the second groove 33 is communicated with the first groove 24, so that the cutting fluid can conveniently flow into the second groove 33 from the first groove 24.
Further, the negative rake angle α ranges from 5 to 10 °.
Specifically, the negative rake angle α may be 5 °, 7 ° or 10 °, and if the angle of the negative rake angle α is too large, the thickness of the second calibration margin 23 will be large, which results in high cost of the tap, and if the angle of the negative rake angle α is too small, the thickness of the second calibration margin 23 will be small, which results in low strength of the second calibration margin 23, and thus the second calibration margin 23 is easily damaged.
Further, along the rotating direction of the tap, a first cutting edge zone 31 and a second cutting edge zone 32 are sequentially arranged on the cutting part body 34, and a distance S between the first cutting edge zone 31 and the center of the tap body 11Is less than the distance between the second cutting edge zone 32 and the center of the tap body 1, i.e. the second S2。
Particularly, the cutting amount of the first cutting edge zone 31 and the cutting amount of the second cutting edge zone 32 are reasonably distributed, so that excessive or too small cutting amount of the first cutting edge zone 31 is prevented, excessive or too small cutting amount of the second cutting edge zone 32 is prevented, abrasion of the first cutting edge zone 31 and the second cutting edge zone 32 is reduced, the service lives of the first cutting edge zone 31 and the second cutting edge zone 32 are prolonged, and the service life of the tap is prolonged.
Further, a distance of S1And a distance of two S2The difference is in the range of 0.05-0.1 mm.
Specifically, the distance is S1And a distance of two S2The difference may in particular be 0.05mm, 0.07mm or 0.1mm if the distance is S1And a distance of two S2An excessive difference will result in an excessive cutting amount of the second cutting edge zone 32, and the cutting amount distribution of the first cutting edge zone 31 and the second cutting edge zone 32 will be uneven if the distance S is too long1And a distance of two S2If the difference is too small, the cutting amount of the first cutting edge zone 31 will be too large, and the cutting amounts of the first cutting edge zone 31 and the second cutting edge zone 32 will be distributed unevenly.
Furthermore, a first chip groove 4 is formed between adjacent calibration part bodies 21, and a second chip groove 5 communicated with the first chip groove 4 is formed between adjacent cutting parts 3.
Specifically, the first chip groove 4 is supported by the calibration part body 21, so that the stability of the first chip groove 4 can be guaranteed, the first chip groove 4 is used for discharging waste chips generated by the calibration part 2 and the cutting part 3, the second chip groove 5 is supported by the cutting part 3, so that the stability of the second chip groove 5 can be guaranteed, the second chip groove 5 is used for discharging waste chips generated by the cutting part 3, and the first chip groove 4 is communicated with the second chip groove 5, so that the waste chips in the first chip groove 4 can conveniently enter the second chip groove 5.
Further, the calibration part bodies 21 are uniformly distributed on the tap body 1 along the circumference.
Specifically, the tap has a certain symmetry, so as to ensure that the calibration amount of each calibration part 2 consisting of the calibration part body 21, the calibration land one 22, the calibration land two 23 and the groove one 24 is the same, wherein the number of the calibration part bodies 21 is not limited, and can be determined by comprehensively considering factors such as machining and manufacturing, cost and the like.
Furthermore, the cutting parts 3 are uniformly distributed on the tap body 1 along the circumference.
Specifically, the tap has certain symmetry, so that the cutting amount of each cutting part 3 is ensured to be the same, wherein the number of the cutting parts 3 is not limited, and the cutting parts can be determined by comprehensively considering factors such as machining and manufacturing, cost and the like.
Further, an end of the tap body 1 away from the calibration portion body 21 is provided with an assembling portion 6.
Specifically, the support that assembly portion 6 passes through screw tap body 1, can guarantee the stability of assembly portion 6, assembly portion 6 is used for cooperating with manual tapping machine or automatic tapping machine, thereby make screw tap and manual tapping machine or automatic tapping machine cooperation, realize manual tapping or automatic tapping, wherein, the cross sectional shape of assembly portion 6 is regular polygon, regular polygon makes assembly portion 6 have certain symmetry, thereby guarantee the homogeneity of 6 intensity of assembly portion, wherein, regular polygon specifically can be the square, regular triangle or regular hexagon etc..
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (10)
1. A tap, comprising:
a tap body;
the screw tap comprises a screw tap body, a calibrating part body and a screw tap body, wherein the screw tap body is connected with the screw tap body, the calibrating part body is provided with a first calibrating cutting edge and a second calibrating cutting edge, and a first groove is formed between the first calibrating cutting edge and the second calibrating cutting edge;
the cutting part is connected with one end, far away from the tap body, of the calibration part body.
2. A tap according to claim 1, wherein said first calibrated land and said second calibrated land are sequentially provided on said calibrated portion body in the direction of tap rotation, said second calibrated land having a negative rake angle α.
3. The tap according to claim 1, wherein said cutting portion comprises a cutting portion body connected to said calibration portion body, said cutting portion body being provided with a first cutting land and a second cutting land, said first cutting land and said second cutting land being provided with a second groove therebetween communicating with said first groove.
4. A tap according to claim 2, wherein said negative rake angle α is in the range of 5-10 °.
5. A tap according to claim 3, wherein said first cutting edge and said second cutting edge are sequentially provided on said cutting portion body in the rotational direction of the tap, and the distance S between said first cutting edge and the center of said tap body is S1Is less than the distance between the second cutting edge zone and the center of the tap body2。
6. A tap according to claim 5 wherein said distance is S1And said distance is two S2The difference is in the range of 0.05-0.1 mm.
7. A tap according to any one of claims 1 to 6, wherein a first chip flute is provided between adjacent said calibrating portion bodies, and a second chip flute communicating with said first chip flute is provided between adjacent said cutting portions.
8. A tap according to any one of claims 1 to 6, wherein said calibration portion bodies are circumferentially arranged on said tap body.
9. A tap according to any one of claims 1 to 6, wherein said cutting portions are circumferentially equispaced on said tap body.
10. A tap according to any one of claims 1 to 6, wherein a fitting portion is provided at an end of the tap body remote from the calibration portion body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547026.6U CN216177354U (en) | 2021-10-21 | 2021-10-21 | Screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547026.6U CN216177354U (en) | 2021-10-21 | 2021-10-21 | Screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216177354U true CN216177354U (en) | 2022-04-05 |
Family
ID=80886945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122547026.6U Active CN216177354U (en) | 2021-10-21 | 2021-10-21 | Screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216177354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780923A (en) * | 2022-12-22 | 2023-03-14 | 中国重汽集团济南动力有限公司 | Multi-petal cutting screw tap |
-
2021
- 2021-10-21 CN CN202122547026.6U patent/CN216177354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780923A (en) * | 2022-12-22 | 2023-03-14 | 中国重汽集团济南动力有限公司 | Multi-petal cutting screw tap |
| CN115780923B (en) * | 2022-12-22 | 2024-10-18 | 中国重汽集团济南动力有限公司 | Multi-lobe cutting tap |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120301235A1 (en) | Cutting Insert and Cutting Tool | |
| KR20160053989A (en) | Replaceable-cutting-edge rotary cutting tool and insert used in same | |
| JP2013509308A (en) | Multiple-exchangable cutting plate for drilling tools | |
| CN216177354U (en) | Screw tap | |
| CN105522200B (en) | A kind of high-precision drill bit | |
| CN105537654A (en) | Drilling tool | |
| CN110446575A (en) | Ball end mill | |
| CN114472997A (en) | Milling cutter | |
| CN111168133A (en) | Integral zirconia ceramic forming milling cutter for graphite processing | |
| CN210702768U (en) | Milling cutter for machining graphite workpiece | |
| CN208450680U (en) | Milling cutter for processing graphite workpiece | |
| CN109732127B (en) | Hole machining tool with independent drill point in center | |
| CN218016027U (en) | Indexable disc-shaped milling cutter for machining twisted blade rotor of Roots blower | |
| CN212398256U (en) | End milling cutter for machining side wall | |
| JP2019177445A (en) | Cutting blade part-position adjustment mechanism and rotary cutting tool | |
| CN211966222U (en) | Positioning screw tap | |
| CN209565495U (en) | Slot knife blade, slot knife and numerically controlled lathe | |
| CN218946453U (en) | Milling cutter | |
| CN208450681U (en) | Milling cutter for processing graphite workpiece | |
| CN217529374U (en) | Milling cutter | |
| CN101700579B (en) | High-precision hole-machining drilling and boring cutter | |
| CN221269788U (en) | Ball cage cutter | |
| CN201572925U (en) | High-precision hole processing, drilling and boring knife tool | |
| CN215315944U (en) | Milling cutter for processing titanium alloy material | |
| CN215090910U (en) | Four-edge round nose milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |