CN215918974U - Special through-rolling type thread rolling wheel for machining set screws - Google Patents
Special through-rolling type thread rolling wheel for machining set screws Download PDFInfo
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- CN215918974U CN215918974U CN202121879228.4U CN202121879228U CN215918974U CN 215918974 U CN215918974 U CN 215918974U CN 202121879228 U CN202121879228 U CN 202121879228U CN 215918974 U CN215918974 U CN 215918974U
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Abstract
The application relates to a through rolling type thread rolling wheel special for machining a set screw, and belongs to the technical field of thread rolling machines. It includes the body, the body periphery wall includes feeding district, shaping district and ejection of compact district along length direction, the feeding district with the ejection of compact district all is provided with tapered screw thread, the root circle diameter of feeding district screw thread is followed the feeding district arrives shaping district direction increases gradually until with the root circle diameter of shaping district standard screw thread is unanimous. This application has the thin allen key set screw's of adaptation wall effect of thread processing.
Description
Technical Field
The application relates to the field of thread rolling machines, in particular to a through-rolling thread rolling wheel special for machining set screws.
Background
The thread rolling wheel is a tool for rolling threads on a thread rolling machine by using a metal plastic deformation method. The method is suitable for processing threads such as high-strength bolts, trapezoidal lead screws and the like.
The existing thread rolling wheel is shown in the attached figure 1 and comprises a body 1, the peripheral wall of the body 1 is a cylindrical surface, the peripheral wall of the body 1 comprises a feeding area 11, a forming area 12 and a discharging area 13 along the length direction, and both the feeding area 11 and the discharging area 12 are provided with tapered threads 2.
Aiming at the related technologies, the inventor thinks that the thread rolling wheel is suitable for processing the threads of the set screws with various heads such as an outer hexagon, an inner hexagon, a square head and the like, and because the taper of the feeding area is less than or equal to 1 degree, the extrusion force during processing the threads is small, and for the thin-wall head of the inner hexagon set screw, the inner hexagon inner wall of the set screw is not easy to deform during the float extrusion, thereby improving the quality stability of the produced inner hexagon set screw and reducing the potential quality risk.
SUMMERY OF THE UTILITY MODEL
For the thread processing of the thin type inner hexagonal set screw of adaptation wall, this application provides a special logical roll thread wheel of processing set screw.
The application provides a special logical roll thread rolling wheel of processing holding screw adopts following technical scheme:
the utility model provides a dedicated logical roll thread rolling wheel of processing holding screw, includes the body, the body periphery wall includes feeding district, shaping district and ejection of compact district along length direction, the feeding district with the ejection of compact district all is provided with tapered screw thread, the root circle diameter of feeding district screw thread is followed the feeding district arrives shaping district direction increases gradually until with the root circle diameter of shaping district screw thread is unanimous.
Through adopting above-mentioned technical scheme for the slim hexagon socket head cap holding screw of wall is through the feeding zone time, and the screw thread of processing out the outer wall that warp gradually makes the thread rolling wheel rotate the screw thread shaping volume of round and reduce, has just so alleviateed the load of thread rolling crest to the inner wall among the extrusion process, makes the inner wall can bear outside external pressure and be difficult to warp, better adaptation wall slim hexagon socket head cap holding screw's processing.
Optionally, the slope of the outer wall of the feeding zone relative to the outer wall of the forming zone is less than or equal to 1 degree.
Optionally, the length of the feed zone is from 20P to 100P.
Through adopting above-mentioned technical scheme, through the length that increases the feeding district, reduce the inclination simultaneously, further reduce the thread forming volume that the thread rolling wheel rotated the round per turn and reduce, increase the number of turns that the thin interior hexagonal holding screw complete molding screw of wall needs for the deformation volume of the thin interior hexagonal holding screw of wall every turn is as little as possible, and the length of body can not the overlength again simultaneously, and the thin interior hexagonal holding screw of wall processes out the screw gradually at the in-process of marcing.
Optionally, the thread rolling wheel is a multi-thread, and the number of threads of the thread rolling wheel is more than that of a standard common thread rolling wheel.
Optionally, the outer wall of one side of the feeding area, which is far away from the forming area, is provided with a feeding guide tooth, and the outer diameter of the feeding guide tooth gradually decreases from one side close to the forming area to one side far away from the forming area.
Through adopting above-mentioned technical scheme, through setting up feeding direction tooth for the work piece adds man-hour between getting into the thread rolling wheel, and is more convenient and smooth, and feeding direction tooth plays certain guide effect, and the work piece that gets into is leading-in between two thread rolling wheels.
Optionally, the discharging area is provided with a material returning tooth, and the diameter of the addendum circle of the material returning tooth is smaller than that of the forming area thread.
Through adopting above-mentioned technical scheme, the ejection of compact district sets up the material returned tooth, because the addendum circle diameter of material returned tooth is less than the addendum circle diameter of forming zone screw thread for the material returned tooth no longer withstands the work piece completely, and the work piece gets into ejection of compact process, does not relax the work piece again completely simultaneously, still can drive work piece axial displacement, makes the work piece end can be more smooth and easy break away from between the thread rolling wheel.
Optionally, a discharging guide surface is arranged on one side, away from the forming area, of the material returning tooth, and the outer diameter of the discharging guide surface is gradually reduced from one side, close to the forming area, to one side, away from the forming area.
Through adopting above-mentioned technical scheme, the ejection of compact spigot surface that sets up, thread rolling machine hydraulic system's pressure is very big during thread rolling processing, makes this material returned spigot surface at thread rolling wheel edge for the most marginal tooth of thread rolling wheel is difficult to crack, reduces the work piece and warp.
Optionally, a fillet is formed on the outer edge of the junction of the discharging guide surface and the end surface of the body.
Through adopting above-mentioned technical scheme, the fillet of seting up for contact between the work piece ejection of compact and the thread rolling wheel, be difficult to impaired, the contact surface is more mellow and more smooth.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by increasing the length of the feeding area and simultaneously reducing the inclination, the threads on the outer wall are gradually deformed and processed when the thin-wall inner hexagonal fastening screw passes through the feeding area, so that the thread forming amount of each turn of the thread rolling wheel is reduced, the load of a thread rolling crest on the inner hexagonal inner wall in the extrusion process is reduced, the inner wall can bear external and external pressure and is not easy to deform, and the thin-wall inner hexagonal fastening screw is better adapted to the processing;
2. the current tightening screw thread rolling wheel on the market adopts single thread or annular thread design. If a full-automatic feeder is adopted for feeding, the feeding and the discharging of the single-thread rolling wheel or the annular thread rolling wheel are not smooth. The design of multi-thread is changed, the thread number is more than that of a standard common thread rolling wheel, when a full-automatic feeder is used for feeding, feeding and discharging become smooth, a tightening screw below M12 is machined, one worker can manage 20-30 thread rolling machines, and labor cost is greatly reduced.
3. The feeding guide teeth are arranged in the feeding area, the length of the set screw is very short, when a full-automatic feeder is used for feeding, when individual screws enter the thread rolling wheel, the phenomenon that the screws do not advance in the normal axial direction can be generated, but the screws are erected to block the screws behind from entering the thread rolling wheel, the phenomenon that the thread rolling machine idles without materials is generated, when 20-30 thread rolling machines are managed by one worker, the phenomenon that the worker cannot timely notice the thread rolling machine idling without materials is often generated, the benefit is reduced, and energy is wasted. After the inventor designs the feeding guide tooth, the phenomenon that when the set screw is fed by a full-automatic feeder, individual screws are erected when entering the thread rolling wheel can not be caused.
4. The ejection of compact district sets up the material returned tooth, because the addendum circle diameter of material returned tooth is less than the addendum circle diameter of screw thread, make the material returned tooth not withstand the work piece completely, the work piece gets into the material returned process, the work piece is incompletely relaxed again simultaneously, still can drive work piece axial displacement, make the work piece end can be more smooth and easy break away from between the thread rolling wheel, the material returned spigot surface of setting, thread rolling machine adds man-hour, thread rolling machine hydraulic system's pressure is very big, make this material returned spigot surface at thread rolling wheel edge, make thread rolling wheel most marginal tooth be difficult to crack, the fillet of seting, contact between the thread rolling wheel when making the work piece material returned, be difficult to impaired, the light knot degree of screw has been improved.
Drawings
FIG. 1 is a schematic view of a prior art thread roller;
FIG. 2 is a schematic structural diagram of an embodiment of the present application;
fig. 3 is an enlarged view at a in fig. 2.
Description of reference numerals: 1. a body; 11. a feed zone; 12. a forming zone; 13. a discharge zone; 14. a feed guide tooth; 15. a material returning guide surface; 16. round corners; 2. a thread; 3. and (7) returning the material teeth.
Detailed Description
The present application is described in further detail below with reference to figures 2-3.
The embodiment of the application discloses a special through-rolling thread rolling wheel for machining a set screw.
Referring to fig. 2, a special logical roll-type thread rolling wheel of processing holding screw, the thread rolling wheel is the multi-thread, and the line number of thread rolling wheel is more than standard ordinary thread rolling wheel, including body 1, body 1 is the cylinder of seting up coaxial through-hole, and body 1 periphery wall includes feeding zone 11, shaping district 12 and ejection of compact district 13 along length direction.
Referring to fig. 2, the forming zone 12 and the feeding zone 11 are both spirally processed with tapered threads 2, the length of the feeding zone 11 is P-P, where P is the code of the thread pitch, and the inclination of the outer wall of the feeding zone 11 relative to the outer wall of the forming zone 12 is less than or equal to 1 degree, so that the diameter of the addendum circle and the diameter of the dedendum circle of the threads 2 of the feeding zone 11 gradually increase along the direction from the feeding zone 11 to the forming zone 12 until the threads 2 of the forming zone 12 are connected to reach the same parameters.
Referring to fig. 2, the outer wall of the feeding zone 11 on the side far from the forming zone 12 is provided with feeding guide teeth 14, and the outer diameter of the feeding guide teeth 14 gradually decreases from the side near the forming zone 12 to the side far from the forming zone 12.
Referring to fig. 2 and 3, material returning teeth 3 are arranged on the material discharging area 13, the material returning teeth 3 are the last circle of teeth on the material discharging area 13, the diameter of the addendum circle of the material returning teeth 3 is smaller than that of the addendum circle of the thread 2, a material returning guide surface 15 is arranged on one side, away from the forming area 12, of the material returning teeth 3, the outer diameter of the material returning guide surface 15 is gradually reduced from one side, close to the forming area 12, to the outer side, away from the forming area 12, of the material returning guide surface 15, and a circular bead 16 is formed on the outer edge of the junction of the material returning guide surface 15 and the end face of the body 1.
The implementation principle of the special through-rolling type thread rolling wheel for machining the set screw is as follows: the two thread rolling wheels are used for processing surface threads of a workpiece, the workpiece passes through the two thread rolling wheels, the two thread rolling wheels rotate to extrude the surface of the workpiece, the thread is firstly preliminarily processed by the progressive gear, and then the thread is further processed by the standard gear.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a special logical roll thread rolling wheel of processing holding screw which characterized in that: including body (1), body (1) periphery wall includes feeding district (11), shaping district (12) and ejection of compact district (13) along length direction, feeding district (11) with ejection of compact district (13) all is provided with tapered screw thread (2), the root circle diameter and the addendum circle diameter of feeding district (11) and ejection of compact district (13), follow and arrive shaping district (12) direction crescent, until with the root circle of shaping district (12) screw thread is unanimous with addendum circle diameter.
2. The special through-rolling type thread rolling wheel for machining the set screw according to claim 1, wherein: the inclination of the outer wall of the feeding area (11) relative to the outer wall of the forming area (12) is less than or equal to 1 degree.
3. The special through-rolling type thread rolling wheel for machining the set screw according to claim 1, wherein: the length of the feeding zone (11) is 20P-100P.
4. The special through-rolling type thread rolling wheel for machining the set screw according to claim 1, wherein: the thread rolling wheel is a multi-thread, and the number of threads of the thread rolling wheel is more than that of a standard common thread rolling wheel.
5. The special through-rolling type thread rolling wheel for machining the set screw according to claim 1, wherein: the outer wall of one side, far away from the forming area (12), of the feeding area (11) is provided with feeding guide teeth (14), and the outer diameter of the feeding guide teeth (14) is gradually reduced from one side, close to the forming area (12), to the side, far away from the forming area (12).
6. The special through-rolling type thread rolling wheel for machining the set screw according to claim 1, wherein: the discharging area (13) is provided with material returning teeth (3), and the diameter of the addendum circle of the material returning teeth (3) is smaller than that of the addendum circle of the thread (2).
7. The special through-rolling type thread rolling wheel for machining the set screw as claimed in claim 6, wherein: and a material returning guide surface (15) is arranged on one side, far away from the forming area (12), of the material returning teeth (3), and the outer diameter of the material returning guide surface (15) is gradually reduced from one side, close to the forming area (12), to the side, far away from the forming area (12).
8. The special through-rolling type thread rolling wheel for machining the set screw according to claim 7, wherein: and a round angle (16) is arranged on the outer edge of the junction of the material returning guide surface (15) and the end surface of the body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121879228.4U CN215918974U (en) | 2021-08-11 | 2021-08-11 | Special through-rolling type thread rolling wheel for machining set screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121879228.4U CN215918974U (en) | 2021-08-11 | 2021-08-11 | Special through-rolling type thread rolling wheel for machining set screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215918974U true CN215918974U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121879228.4U Active CN215918974U (en) | 2021-08-11 | 2021-08-11 | Special through-rolling type thread rolling wheel for machining set screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215918974U (en) |
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2021
- 2021-08-11 CN CN202121879228.4U patent/CN215918974U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315500 No. 51, No. 52, Xinwu District, Hetou village, Xiwu street, Fenghua District, Ningbo City, Zhejiang Province Patentee after: Zhejiang WANYING Henghui thread Technology Co.,Ltd. Address before: 315500 No. 51, No. 52, Xinwu District, Hetou village, Xiwu street, Fenghua District, Ningbo City, Zhejiang Province Patentee before: Zhejiang Zhongyuan WANYING thread Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |