CN218611062U - Die for machining inner grooves of steel pipes - Google Patents
Die for machining inner grooves of steel pipes Download PDFInfo
- Publication number
- CN218611062U CN218611062U CN202222847095.3U CN202222847095U CN218611062U CN 218611062 U CN218611062 U CN 218611062U CN 202222847095 U CN202222847095 U CN 202222847095U CN 218611062 U CN218611062 U CN 218611062U
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- frustum
- connecting part
- steel pipe
- cylindrical
- diameter
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Abstract
The utility model belongs to the technical field of the metal pipe fitting processing technique and specifically relates to a realize mould of steel pipe inside groove processing. The die consists of a cone part, a connecting part and a cylindrical part; the frustum-shaped frustum part and the cylindrical part are connected through a connecting part; a plurality of axial convex strips are formed on the cone part, the connecting part and the cylindrical part along the circumferential direction; the number and circumferential arrangement of the convex strips are arranged according to the inner grooves required by the processing of the steel pipe. The utility model can realize the cold drawing forming of the steel pipe inner groove; can be used for processing an inner groove of a steel pipe.
Description
Technical Field
The utility model belongs to the technical field of the metal pipe fitting processing technique and specifically relates to a realize mould of steel pipe inside groove processing.
Background
Due to the need for post-production; the steel pipe shown in fig. 1 often needs to be processed; forming an axial inner groove in the steel pipe (as shown in fig. 2 and 3); the plurality of inner grooves need to be uniformly distributed along the circumferential direction, and the depth of the grooves needs to be uniform. Therefore, how to process the inner groove of the steel pipe is a problem that needs to be considered by a producer.
Disclosure of Invention
The technical problem solved by the utility model is to provide a mould for processing the inner groove of the steel pipe; the inner groove in the steel pipe can be cold-drawn at one time by the die.
The utility model provides an above-mentioned technical problem's technical scheme be:
the die consists of a cone table part, a connecting part and a cylindrical part; the frustum-shaped frustum part and the cylindrical part are connected through a connecting part;
a plurality of axial convex strips are formed on the cone part, the connecting part and the cylindrical part along the circumferential direction; the number and circumferential arrangement of the convex strips are arranged according to the inner grooves required by the processing of the steel pipe.
Preferably, the outer diameter of the cylindrical part is matched with the inner diameter of the steel pipe to be processed.
The diameter of the bottom of the frustum part is slightly smaller than that of the cylindrical part, the diameter of one end of the connecting part is the same as that of the bottom of the frustum part, and the diameter of the other end of the connecting part is the same as that of the cylindrical part; smooth transition from the frustum part to the outer diameter of the cylindrical part is realized through the connecting part.
More preferably, the height of the convex strip on the cylindrical portion and the connecting portion is the same as the depth of the inner groove to be processed in the steel pipe.
The convex strip on the frustum part, which is far away from one end of the connecting part, gradually increases in height from the circumference of the end of the frustum part until the joint with the convex strip of the connecting part reaches the highest height and is consistent with the height of the convex strip of the connecting part.
The utility model has the advantages that:
the utility model can gradually cool and press in the steel pipe to form a groove through the external diameter transition design of the cone part, the connecting part and the cylindrical part and the design of the external convex strip; the position and the depth of the groove can be accurately controlled and formed at one time.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a perspective view of a steel pipe 10 before being processed by the present invention;
FIG. 2 is a perspective view of the steel pipe 10 after the inner groove is processed by cold drawing;
FIG. 3 is a partial perspective view of the steel pipe 10 after the inner groove is processed by cold drawing;
fig. 4 is a perspective view of the die for forming the inner groove by cold drawing the steel tube.
Detailed Description
The following examples are intended to describe embodiments of the present invention, which are intended to facilitate the understanding of those skilled in the art to the technical solutions of the present invention, and are not intended to limit the scope of the technical solutions of the present invention; all equivalent variations that can be obtained from the description of the embodiments of the present invention are intended to be within the scope of the present invention.
As shown in fig. 4, the mold of the present invention is composed of a frustum portion 1, a connecting portion 2 and a cylindrical portion 3; the frustum-shaped frustum portion 1 and the cylindrical columnar portion 3 are connected by a connecting portion 2. The outer diameter of the cylindrical portion 3 matches the inner diameter of the steel pipe 10 to be processed. The diameter of the bottom of the cone part 1 is slightly smaller than that of the cylindrical part 3, the diameter of one end of the connecting part 2 is the same as that of the bottom of the cone part 1, and the diameter of the other end of the connecting part is the same as that of the cylindrical part 3; a smooth transition of the outer diameter of the cone portion 1 to the cylinder portion 3 is achieved by the connecting portion 2.
A plurality of axial convex strips 11, 21 and 31 are formed on the cone part 1, the connecting part 2 and the cylindrical part 3 along the circumferential direction; the number and circumferential arrangement of the ridges 11, 21, 31 are designed according to the inner groove 101 of the steel pipe 10 after machining; in fig. 4 of the present invention, 6 strips are illustrated to be uniformly arranged along the circumference. The height of the ridges 31, 21 on the cylindrical portion 3 and the connecting portion 2 is the same as the depth of the inner groove 101 to be processed in the steel pipe 10. The height of the convex strip 11 on the frustum portion 1 far away from one end of the connecting portion 21 is gradually increased from the circumference of the frustum portion 1 at the end until the joint with the convex strip 21 of the connecting portion 21 is highest and is consistent with the height of the convex strip 21 of the connecting portion 21.
When the inner groove 101 of the steel pipe 10 is processed, the die of the present invention is fixed, and the end of the steel pipe 10 is pressed against the top of the frustum portion 1 (i.e., the end with the smaller outer diameter); then, the steel pipe 10 is passed through the mold in a cold drawing manner. During the cold drawing process, the ridges 11, 21, 31 on the frustum portion 1, the connecting portion 2, and the cylindrical portion 3 are gradually cold-pressed into the inner groove 101 in the steel pipe 10.
Claims (7)
1. The utility model provides a realize mould of steel pipe inside groove processing which characterized in that: the die consists of a cone part, a connecting part and a cylindrical part; the frustum-shaped frustum part and the cylindrical part are connected through a connecting part;
a plurality of axial convex strips are formed on the cone part, the connecting part and the cylindrical part along the circumferential direction; the number and circumferential arrangement of the convex strips are arranged according to the inner groove required by the processing of the steel pipe.
2. The mold of claim 1, wherein: the outer diameter of the cylindrical part is matched with the inner diameter of the steel pipe to be processed.
3. The mold of claim 1, wherein: the diameter of the bottom of the frustum part is slightly smaller than that of the cylindrical part, the diameter of one end of the connecting part is the same as that of the bottom of the frustum part, and the diameter of the other end of the connecting part is the same as that of the cylindrical part; smooth transition from the cone part to the outer diameter of the cylindrical part is realized through the connecting part.
4. The mold of claim 2, wherein: the diameter of the bottom of the frustum part is slightly smaller than that of the cylindrical part, the diameter of one end of the connecting part is the same as that of the bottom of the frustum part, and the diameter of the other end of the connecting part is the same as that of the cylindrical part; smooth transition from the frustum part to the outer diameter of the cylindrical part is realized through the connecting part.
5. The mold according to any one of claims 1 to 4, wherein: the height of the raised lines on the cylindrical part and the connecting part is the same as the depth of the inner groove to be processed by the steel pipe.
6. The mold according to any one of claims 1 to 4, wherein: the convex strip on the frustum part, which is far away from one end of the connecting part, gradually increases in height from the circumference of the end of the frustum part until the joint with the convex strip of the connecting part reaches the highest height and is consistent with the height of the convex strip of the connecting part.
7. The mold of claim 5, wherein: the convex strip on the frustum part far away from one end of the connecting part gradually increases in height from the circumference of the end of the frustum part until the joint with the convex strip of the connecting part reaches the highest height and is consistent with the convex strip of the connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222847095.3U CN218611062U (en) | 2022-10-27 | 2022-10-27 | Die for machining inner grooves of steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222847095.3U CN218611062U (en) | 2022-10-27 | 2022-10-27 | Die for machining inner grooves of steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218611062U true CN218611062U (en) | 2023-03-14 |
Family
ID=85473783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222847095.3U Active CN218611062U (en) | 2022-10-27 | 2022-10-27 | Die for machining inner grooves of steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218611062U (en) |
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2022
- 2022-10-27 CN CN202222847095.3U patent/CN218611062U/en active Active
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