CN212917293U - Pressure-resistant cold-expanding die device for stainless steel seamless pipe - Google Patents
Pressure-resistant cold-expanding die device for stainless steel seamless pipe Download PDFInfo
- Publication number
- CN212917293U CN212917293U CN202021708012.7U CN202021708012U CN212917293U CN 212917293 U CN212917293 U CN 212917293U CN 202021708012 U CN202021708012 U CN 202021708012U CN 212917293 U CN212917293 U CN 212917293U
- Authority
- CN
- China
- Prior art keywords
- expanding
- main body
- core
- hollow
- stainless steel
- 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
Abstract
The utility model discloses a cold mould device that expands of pressure is prevented to stainless steel seamless pipe, including expanding core, hollow mould, lock nut and cold-drawn pole that expands, wherein: the hollow expanding die is sleeved on the expanding core main body, the locking nut is in threaded connection with the first end of the expanding core, and the locking nut locks the hollow expanding die on the expanding core main body; the cold drawing rod is in threaded connection with the second end of the expanding core, the expanding core is a solid piece, the expanding core main body is conical, the hollow expanding die main body is also conical, and the external diameter taper of the expanding core main body is consistent with the internal diameter taper of the hollow expanding die main body. Through the utility model discloses, can guarantee the size precision behind the stainless steel pipe reaming when stainless steel seamless pipe carries out cold expanding.
Description
Technical Field
The utility model belongs to the technical field of the nonrust steel pipe cold deformation processing and specifically relates to a nonrust steel seamless pipe prevents pressing cold mould device that expands.
Background
The stainless steel seamless pipe can be processed by cold processing such as cold rolling, cold drawing and the like, cold expansion is one method in a cold drawing process, the inner diameter of the steel pipe can be enlarged by the cold expansion, and the strength of the steel pipe can be improved by the cold expansion method.
Therefore, the utility model provides a cold mould device that expands is prevented pressing by stainless steel seamless pipe can make the seamless pipe expand when cold the head not squashed, has guaranteed off-the-shelf internal diameter size precision.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the utility model, the following technical scheme is adopted to realize:
the utility model provides a cold mould device that expands of pressure is prevented to stainless steel seamless pipe, expands mould, lock nut and cold drawing rod including expanding the core, hollow, wherein: the hollow expanding die is sleeved on the expanding core main body, the locking nut is in threaded connection with the first end of the expanding core, and the locking nut locks the hollow expanding die on the expanding core main body; the cold drawing rod is in threaded connection with the second end of the expanding core, the expanding core is a solid piece, the expanding core main body is conical, the hollow expanding die main body is also conical, and the external diameter taper of the expanding core main body is consistent with the internal diameter taper of the hollow expanding die main body.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the first end of the core expanding main body is a large-diameter end, the second end of the core expanding main body is a small-diameter end, the first end and the second end of the core expanding main body are respectively connected with the first cylindrical section and the second cylindrical section, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the first cylindrical section is connected with the first external thread section, and the second cylindrical section is connected with the second external thread section.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the outer diameter of the first external thread section is smaller than the diameter of the first cylindrical section, the outer diameter of the second external thread section is smaller than the diameter of the second cylindrical section, and the outer diameter of the second external thread section is smaller than the outer diameter of the first external thread section.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the small-diameter end of the hollow expansion die main body is connected with a section of hollow cylindrical section, and the inner diameter of the hollow cylindrical section is consistent with the outer diameter of the second cylindrical section of the expansion core.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the inner wall of the main body of the hollow expansion die is matched with the outer wall of the main body of the expansion core, and the inner wall of the hollow cylindrical section of the hollow expansion die is matched with the outer wall of the second cylindrical section of the expansion core.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the locking nut is in threaded connection with the first external thread section of the expanding core, and the side wall of the locking nut abuts against the side wall of the large-diameter end of the hollow expanding die main body.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the head of one end of the cold-drawing rod is provided with an inner screw thread which is in threaded connection with the second external thread section of the expanding core.
Stainless steel seamless pipe prevent pressing cold die set that expands, wherein: the stainless steel seamless pipe pressure-proof cold-expanding die device is made of steel materials.
Drawings
FIG. 1 is a schematic structural view of a pressure-resistant cold-expanding die device for a stainless steel seamless pipe;
fig. 2 is a schematic view of a tapered core expanding structure.
Fig. 3 is a schematic view of a conical hollow die expanding structure.
FIG. 4 is a schematic view of a cold drawn rod configuration.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings 1-4.
As shown in figure 1, the stainless steel seamless pipe pressure-proof cold-expanding die device comprises an expanding core 1, a hollow expanding die 2, a locking nut 3 and a cold-drawing rod 4. The hollow expanding die 2 is sleeved on the expanding core 1 main body, the locking nut 3 is in threaded connection with the first end of the expanding core 1, and the locking nut 3 is used for locking the hollow expanding die 2 on the expanding core 1 main body; the cold-drawing rod 4 is in threaded connection with the second end of the core expanding 1. The stainless steel seamless pipe pressure-proof cold-expanding die device is made of steel materials.
As shown in fig. 1 and 2, the expansion core 1 is an integrally formed solid component made of steel, the main body of the expansion core 1 is conical, a first end of the conical shape is a large-diameter end, a second end of the conical shape is a small-diameter end, the first end and the second end are respectively connected with a first cylindrical section and a second cylindrical section, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the first cylindrical section is connected with a first external thread section 5, and the second cylindrical section is connected with a second external thread section 6; the outer diameter of the first external thread section 5 is smaller than the diameter of the first cylindrical section, the outer diameter of the second external thread section 6 is smaller than the diameter of the second cylindrical section, and the outer diameter of the second external thread section 6 is smaller than the outer diameter of the first external thread section 5.
As shown in fig. 1 and 3, the main body of the hollow expanding die 2 is also conical, the taper of the outer diameter of the main body of the expanding core 1 is consistent with the taper of the inner diameter of the main body of the hollow expanding die 2, the small-diameter end of the main body of the hollow expanding die 2 is connected with a section of hollow cylindrical section, and the inner diameter of the hollow cylindrical section is consistent with the outer diameter of the second cylindrical section of the expanding core 1. The hollow expanding die 2 is sleeved on the expanding core 1, the inner wall of the main body of the hollow expanding die 2 is matched with the outer wall of the main body of the expanding core 1, and the inner wall of the hollow cylindrical section of the hollow expanding die 2 is matched with the outer wall of the second cylindrical section of the expanding core 1.
The locking nut 3 is in threaded connection with the first external thread section 5 of the expanding core 1, and the side wall of the locking nut 3 abuts against the side wall of the large-diameter end of the main body of the hollow expanding die 2.
As shown in fig. 1 and 4, the head of one end of the cold-drawing rod 4 is provided with an inner screw thread 7 which is in threaded connection with a second outer thread section 6 of the core expanding 1.
The assembly method of the pressure-resistant cold-expanding die device for the stainless steel seamless pipe comprises the following steps: the conical hollow expanding die is sleeved on the conical expanding core, the nut is screwed on the big end of the conical expanding core, the conical hollow expanding die is clamped, and the conical hollow expanding die is prevented from moving along the axial direction. And (4) connecting the screw thread in the head of the cold-drawing rod with the small head of the conical expanding core by screw threads to complete the assembly of the whole die device.
Through the utility model discloses, can be when stainless steel seamless pipe carries out cold expanding, the hollow mould that expands of toper receives the support of expanding the core and not flattened, has guaranteed the size precision behind the stainless steel pipe reaming, device simple structure, and it is all more convenient to make and use.
Claims (8)
1. The utility model provides a cold mould device that expands of pressure is prevented to stainless steel seamless pipe, expands mould, lock nut and cold drawing rod, its characterized in that including expanding the core, hollow: the hollow expanding die is sleeved on the expanding core main body, the locking nut is in threaded connection with the first end of the expanding core, and the locking nut locks the hollow expanding die on the expanding core main body; the cold drawing rod is in threaded connection with the second end of the expanding core, the expanding core is a solid piece, the expanding core main body is conical, the hollow expanding die main body is also conical, and the external diameter taper of the expanding core main body is consistent with the internal diameter taper of the hollow expanding die main body.
2. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 1, characterized in that: the first end of the core expanding main body is a large-diameter end, the second end of the core expanding main body is a small-diameter end, the first end and the second end of the core expanding main body are respectively connected with the first cylindrical section and the second cylindrical section, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the first cylindrical section is connected with the first external thread section, and the second cylindrical section is connected with the second external thread section.
3. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 2, characterized in that: the outer diameter of the first external thread section is smaller than the diameter of the first cylindrical section, the outer diameter of the second external thread section is smaller than the diameter of the second cylindrical section, and the outer diameter of the second external thread section is smaller than the outer diameter of the first external thread section.
4. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 1 or 2, characterized in that: the small-diameter end of the hollow expansion die main body is connected with a section of hollow cylindrical section, and the inner diameter of the hollow cylindrical section is consistent with the outer diameter of the second cylindrical section of the expansion core.
5. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 4, characterized in that: the inner wall of the main body of the hollow expansion die is matched with the outer wall of the main body of the expansion core, and the inner wall of the hollow cylindrical section of the hollow expansion die is matched with the outer wall of the second cylindrical section of the expansion core.
6. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 2, characterized in that: the locking nut is in threaded connection with the first external thread section of the expanding core, and the side wall of the locking nut abuts against the side wall of the large-diameter end of the hollow expanding die main body.
7. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 2, characterized in that: the head of one end of the cold-drawing rod is provided with an inner screw thread which is in threaded connection with the second external thread section of the expanding core.
8. The stainless steel seamless tube pressure-proof cold-expanding die device according to claim 1, characterized in that: the stainless steel seamless pipe pressure-proof cold-expanding die device is made of steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021708012.7U CN212917293U (en) | 2020-08-17 | 2020-08-17 | Pressure-resistant cold-expanding die device for stainless steel seamless pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021708012.7U CN212917293U (en) | 2020-08-17 | 2020-08-17 | Pressure-resistant cold-expanding die device for stainless steel seamless pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212917293U true CN212917293U (en) | 2021-04-09 |
Family
ID=75298809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021708012.7U Active CN212917293U (en) | 2020-08-17 | 2020-08-17 | Pressure-resistant cold-expanding die device for stainless steel seamless pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212917293U (en) |
-
2020
- 2020-08-17 CN CN202021708012.7U patent/CN212917293U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4900092B2 (en) | Method for manufacturing hose fittings | |
| US3754429A (en) | Apparatus and method for shaping a cylindrical metal tubular component | |
| CN203993534U (en) | A kind of positioning fixture of fixing thin-wall tube-shaped part | |
| CN212917293U (en) | Pressure-resistant cold-expanding die device for stainless steel seamless pipe | |
| CN201376007Y (en) | Cold-drawing mold for refining crystalline grains on internal surface of steel pipe | |
| CN112620369B (en) | Processing device for high-performance stainless steel seamless steel pipe | |
| CN212069957U (en) | Rotary cold-drawing mandrel base | |
| CN202861228U (en) | Expansion type diameter expansion device for stainless steel billet tube | |
| CN201579288U (en) | Compound inner die of cold-drawing steel tubes | |
| CN208758348U (en) | A kind of inner die for cold-drawn process for eliminating steel pipe inside spin | |
| CN211588012U (en) | Large-diameter metal pipe expanding and drawing forming die | |
| CN210701731U (en) | Overlength cold drawing plug device | |
| CN218361847U (en) | Combined core rod for drawing out super-long cylinder forging | |
| CN102091958B (en) | Lathe boring fixture for large-turning radius long tube with fins on outer wall | |
| CN107891083B (en) | A kind of mold for automobile straight tube pipe end molding convex closure and fine synchronous processing | |
| CN216965828U (en) | Core column for cold drawing process of automobile engine pipeline | |
| CN201308944Y (en) | Tube end sizing and flaring die | |
| CN202570795U (en) | Internal cold-drawing die for small-aperture spiral pipe | |
| CN214211770U (en) | Special tool and die for hot extrusion of large-size aluminum alloy seamless pipe | |
| CN220970371U (en) | Core rod for thick-wall seamless steel tube rolling mill | |
| CN212389619U (en) | Telescopic handle connecting piece | |
| CN201970124U (en) | Boring tooling of lathe for large-turning radius long pipe fitting with fins on outer wall | |
| CN217252248U (en) | Metal pipe necking forming device | |
| CN208879363U (en) | A kind of aluminium and aluminium alloy pipes stretching internal model connection structure | |
| CN212384285U (en) | Compression type core rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |