CN215697683U - Precision forming die for head of compact screw - Google Patents
Precision forming die for head of compact screw Download PDFInfo
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- CN215697683U CN215697683U CN202122078950.4U CN202122078950U CN215697683U CN 215697683 U CN215697683 U CN 215697683U CN 202122078950 U CN202122078950 U CN 202122078950U CN 215697683 U CN215697683 U CN 215697683U
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- circular groove
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- head
- forming die
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Abstract
The utility model discloses a precision forming die for a head of a compact screw, which comprises a punch body, wherein a circular groove is formed in the center of the punch body, a group of arc-shaped bulges are uniformly arranged on the inner wall of the circular groove along the circumferential direction of the circular groove, the arc-shaped bulges are arranged along the inner wall of the circular groove and extend from the top surface of the circular groove to the bottom surface of the circular groove, and thus the arc-shaped bulges and the circular groove form a punch head structure together. The utility model has the beneficial effects that: 1) the head of the screw can be processed and formed at one time through the arranged circular groove and the arc-shaped bulge, so that the production efficiency is high; 2) the inner wall of the circular groove and the wall surface of the arc-shaped bulge are obliquely arranged, so that the screw is convenient to introduce in the machining process, and the head of the screw can be effectively cut; 3) the bottom surface of the circular groove adopts an arc concave surface, so that the top surface of the head of the screw forms an arc convex surface after the processing is finished, and the insertion of a tool is facilitated.
Description
Technical Field
The utility model relates to the technical field of screw head forming dies, in particular to a precision forming die for a head of a compact screw.
Background
The head of the screw is generally in a straight shape or a cross shape, and due to the head and the common shape of the screw, matched tools on the market are very common, so that anti-theft screws are usually adopted to install on some important parts, and thus, the anti-theft screws can be installed or disassembled only by adopting specific tools, and potential safety hazards or property loss caused by the loss of the screws can be prevented; the anti-theft screw head is various in types, and a specific forming die needs to be designed for processing, so that the application provides a novel precision forming die for the head of the compact screw.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a precision forming die for a head of a compact screw, which is reasonable in structural design.
The technical scheme of the utility model is as follows:
the utility model provides a precision forming die of tight screw head, includes the drift body, drift body central point puts and is equipped with circular recess, evenly set up a set of arc arch along its circumferencial direction on the inner wall of circular recess, the arc arch sets up along the inner wall of circular recess to the top surface from circular recess extends to circular recess bottom surface always, thereby constitutes drift head type structure jointly with circular recess.
The precision forming die for the head of the compact screw is characterized in that the inner wall of the circular groove is inclined inwards, the bottom surface of the circular groove is an arc-shaped concave surface, and the inner wall of the circular groove is in arc-shaped transition connection with the bottom surface of the circular groove.
The precision forming die for the head of the compact screw is characterized in that the cross section size of the arc-shaped bulge is gradually increased from top to bottom along the inner wall of the circular groove.
The precision forming die for the head of the compact screw is characterized in that a rotation stopping hole is formed in the outer side wall of the punch body and adopts a hemispherical structure.
The precision forming die for the head of the compact screw is characterized in that 6 arc-shaped bulges are arranged at the center of the punch body.
The utility model has the beneficial effects that:
1) the head of the screw can be formed by one-step machining through the arranged circular groove and the arc-shaped protrusion, and the production efficiency is high.
2) The inner wall of the circular groove and the arc-shaped convex wall face are obliquely arranged, so that the screw is convenient to guide in the machining process, and the head of the screw can be effectively cut.
3) The bottom surface of the circular groove adopts an arc concave surface, so that the top surface of the head of the screw forms an arc convex surface after the processing is finished, and the insertion of a tool is facilitated.
Drawings
FIG. 1 is a schematic overall cross-sectional structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
in the figure: 1. a punch body; 2. a circular groove; 201. a bottom surface; 202. an inner wall; 3. an arc-shaped bulge; 4. and a rotation stopping hole.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, a precision forming die for a head of a compact screw comprises a punch body 1, a circular groove 2, a bottom surface 201, an inner wall 202, an arc-shaped protrusion 3 and a rotation stopping hole 4.
Example (b):
the precision forming die for the head of the compact screw comprises a punch body 1, a circular groove 2 and an arc-shaped bulge 3.
The arc-shaped protrusion 3 is disposed along the inner wall 202 of the circular groove 2 and extends from the top surface of the circular groove 2 up to the bottom surface of the circular groove 2, thereby constituting a punch head structure together with the circular groove 2.
The inner wall 202 of the circular groove 2 is arranged in an inward inclined mode (the inner wall 202 inclines towards the center of the circular groove 2 from the top to the bottom of the circular groove 2), the bottom surface 201 of the circular groove 2 is an arc-shaped concave surface, and the inner wall 202 of the circular groove 2 is in arc transition connection with the bottom surface 201 of the circular groove 2.
The cross-sectional dimension of the arc-shaped protrusion 3 gradually increases from top to bottom along the inner wall 202 of the circular groove 2, so that an included angle of 6 degrees is formed between the outer wall of the arc-shaped protrusion 3 and the axis of the punch body 1.
Seted up on the lateral wall of drift body 1 and stopped rotating hole 4, and stopped rotating hole 4 and adopted hemispherical structure, accessible locking screw fixes drift body 1 on the punching sleeve in the hole 4 that stops rotating.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.
Claims (5)
1. The utility model provides a precision forming die of tight screw head, includes drift body (1), its characterized in that, drift body (1) central point puts and is equipped with circular recess (2), evenly set up a set of arc arch (3) along its circumferencial direction on inner wall (202) of circular recess (2), the inner wall (202) setting along circular recess (2) is protruding (3) to extend to bottom surface (201) of circular recess (2) always from the top surface of circular recess (2), thereby constitute drift head type structure jointly with circular recess (2).
2. The precision forming die for the heads of the compact screws as claimed in claim 1, wherein the inner wall (202) of the circular groove (2) is inclined inwards, the bottom surface (201) of the circular groove (2) is an arc concave surface, and the inner wall (202) of the circular groove (2) is in arc transition connection with the bottom surface (201) of the circular groove.
3. The precision forming die for the heads of the compact screws as claimed in claim 1, wherein the cross-sectional dimension of the arc-shaped protrusions (3) is gradually increased from top to bottom along the inner wall (202) of the circular groove (2).
4. The precision forming die for the head of the compact screw as claimed in claim 1, wherein the outer side wall of the punch body (1) is provided with a rotation stopping hole (4), and the rotation stopping hole (4) adopts a hemispherical structure.
5. The precision forming die for the heads of the compact screws as claimed in claim 1, wherein the punch body (1) is provided with 6 arc-shaped protrusions (3) at the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078950.4U CN215697683U (en) | 2021-08-31 | 2021-08-31 | Precision forming die for head of compact screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078950.4U CN215697683U (en) | 2021-08-31 | 2021-08-31 | Precision forming die for head of compact screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215697683U true CN215697683U (en) | 2022-02-01 |
Family
ID=80010277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122078950.4U Active CN215697683U (en) | 2021-08-31 | 2021-08-31 | Precision forming die for head of compact screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215697683U (en) |
-
2021
- 2021-08-31 CN CN202122078950.4U patent/CN215697683U/en active Active
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