CN213436365U - Hydraulic cold drawing mechanism for stainless steel seamless steel pipe - Google Patents
Hydraulic cold drawing mechanism for stainless steel seamless steel pipe Download PDFInfo
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- CN213436365U CN213436365U CN202022061605.5U CN202022061605U CN213436365U CN 213436365 U CN213436365 U CN 213436365U CN 202022061605 U CN202022061605 U CN 202022061605U CN 213436365 U CN213436365 U CN 213436365U
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- Prior art keywords
- drawing die
- expansion head
- pull rod
- sleeve
- cold
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- 238000010622 cold drawing Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 15
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000010985 leather Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a hydraulic cold drawing mechanism for stainless steel seamless steel pipes, which comprises a cold drawing part, a pull rod part and a hydraulic press, wherein the cold drawing part is fixedly installed through a base, the cold drawing part comprises an outer drawing die and an outer sleeve capable of adjusting the inner diameter of the outer drawing die, the outer sleeve is inserted in the outer drawing die, the pull rod part comprises a pull rod and an expansion head, the pull rod is connected with the expansion head integrally, the outer side of the expansion head is sleeved with an inner sleeve capable of adjusting the outer diameter of the expansion head, the utility model is convenient for installing the outer sleeve on the outer drawing die, adjusting the inner diameter of the outer drawing die, installing the inner sleeve on the movable expansion head, adjusting the outer diameter of the expansion head, adjusting the gap thickness between drawing die cavities, facilitating the adjustment of the thickness of the pipe according to the requirement, and quickly replacing the outer sleeve and the inner sleeve as much as possible, the whole cold-drawing die does not need to be replaced, and the cost is saved.
Description
Technical Field
The utility model relates to a steel pipe machining technical field specifically is a stainless steel seamless steel pipe hydraulic pressure cold drawing mechanism.
Background
The cold drawing machine is used for drawing ferrous and non-ferrous metal bar material at normal temperature and secondary processing of hot rolled and extruded pierced billet, and is one main processing apparatus for producing small diameter, precise, thin wall and mechanical performance pipe.
Various production equipment is needed in the production process of the seamless steel tube, and the cold-drawing device is an important one in the production of the seamless steel tube.
The tube blank which is punched and headed by the cold drawing device is extruded by the fixed cold drawing die and the sliding mandrel to form a seamless steel tube with smaller diameter and higher strength.
To the steel pipe of factory production, its needs are according to the steel pipe of the different pipe diameters of different kinds and steel pipe specification production departments, but general cold drawing equipment is comparatively troublesome when changing the cold drawing mould, and whole mould is with high costs when changing, and the installation needs a large amount of time, based on this, the utility model discloses a stainless steel seamless steel pipe hydraulic pressure cold drawing mechanism to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stainless steel seamless steel pipe hydraulic pressure cold drawing mechanism to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic cold drawing mechanism for a stainless steel seamless steel pipe comprises a cold drawing part, a pull rod part and a hydraulic machine, wherein the cold drawing part is fixedly installed through a base, the cold drawing part comprises an outer drawing die and an outer sleeve capable of adjusting the inner diameter of the outer drawing die, the outer sleeve is inserted into the outer drawing die in an inserting mode, the pull rod part comprises a pull rod and an expansion head, the pull rod and the expansion head are connected integrally, an inner sleeve capable of adjusting the outer diameter of the expansion head is sleeved on the outer side of the expansion head, the inner sleeve is fixedly connected with the expansion head through a circular ring piece, the expansion head is inserted into the outer drawing die, a gap between the outer sleeve and the inner sleeve is a drawing die cavity, and the diameter of the cold drawing die is expanded by the steel pipe in the drawing die cavity.
Preferably, the inner sleeve comprises an integrated cylindrical section, an outward expanding section and a buffer section, the buffer section is arranged at the narrowest end of the inner diameter of the outward expanding section, and the cylindrical section is arranged at the widest end of the inner diameter of the outward expanding section.
Preferably, threaded holes are formed in the expansion head and the inner sleeve, and the annular piece is fixed with the expansion head and the inner sleeve in a threaded mode through two circles of bolts.
Preferably, threaded holes are formed in the outer sleeve and the outer drawing die, and the outer sleeve and the outer drawing die are fixed through a second circle of bolts in a threaded mode.
Preferably, a cutting groove is formed at the joint of the pull rod and the expansion head, and a leather ring filled with lubricating oil is sleeved inside the cutting groove.
Preferably, the bottom base of the outer drawing die comprises a semi-annular support for fixing the outer side of the outer drawing die, the outer drawing die and the semi-annular support are fixed through a locking bolt, the bottom of the semi-annular support is installed on the bottom plate, and a reinforcing rib plate is fixedly installed between the semi-annular support and the bottom plate.
Preferably, the end part of the pull rod is provided with an inserting end, the telescopic end of the hydraulic machine is inserted into the inserting end, and the telescopic end is connected with the inserting end through a shaft pin for fixing.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model is convenient for installing an outer sleeve on the outer drawing die, adjusting the inner diameter of the outer drawing die, installing an inner sleeve on the movable expansion head, and adjusting the outer diameter of the expansion head;
when carrying out the different types production of the pipe diameter and the thickness of pipeline, only need to change corresponding outer sleeve or inner skleeve, perhaps the two is changed for the clearance thickness between the drawing die cavity is adjustable, is convenient for carry out pipeline thickness's regulation as required, and outer sleeve and inner skleeve can change the dress as far as possible fast, need not change whole cold drawing mould, saves the cost more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of the present invention;
fig. 2 is a schematic rear view of the present invention;
FIG. 3 is a schematic view of the split structure of the present invention;
FIG. 4 is a schematic front and rear side view of the cold drawing portion of the present invention;
fig. 5 is a schematic cross-sectional view of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-cold drawing part, 2-pull rod part, 3-hydraulic press, 4-pull rod, 5-expansion head, 6-cutting groove, 7-circular ring piece, 8-bolt I, 9-inner sleeve, 10-cylinder section, 11-external expansion section, 12-buffer section, 13-outer sleeve, 14-bolt II, 15-external drawing die, 16-bottom plate, 17-semi-circular support, 18-reinforcing rib plate, 19-plug end and 20-shaft pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a hydraulic cold drawing mechanism for a stainless steel seamless steel pipe comprises a cold drawing part 1, a pull rod part 2 and a hydraulic machine 3, wherein the cold drawing part 1 is fixedly installed through a base, the cold drawing part 1 comprises an outer drawing die 15 and an outer sleeve 13 capable of adjusting the inner diameter of the outer drawing die 15, the outer sleeve 13 is inserted into the outer drawing die 15, threaded holes are formed in the outer sleeve 13 and the outer drawing die 15, the outer sleeve 13 and the outer drawing die 15 are fixed through a circle of bolts II 14 in a threaded mode, the outer sleeve 13 is inserted into the outer drawing die 15 during installation, and the outer sleeve 13 and the front end of the outer drawing die 15 are fixed;
the pull rod part 2 comprises a pull rod 4 and an expansion head 5, the pull rod 4 and the expansion head 5 are integrally connected, an inner sleeve 9 capable of adjusting the outer diameter of the expansion head 5 is sleeved on the outer side of the expansion head 5, the inner sleeve 9 comprises an integrated cylindrical section 10, an outward expansion section 11 and a buffer section 12, the buffer section 12 is arranged at the narrowest end of the inner diameter of the outward expansion section 11, when the pull rod is installed, the inner sleeve 9 is sleeved from the tail end of the pull rod 4 and slides to one end of the expansion head 5, threaded holes are formed in the expansion head 5 and the inner sleeve 9, and the expansion head 5 and the inner sleeve 9 are fixed by two circles of bolts I8 on a circular ring piece 7 in a threaded mode;
the cylindrical section 10 is arranged at the widest end of the inner diameter of the external expanding section 11, the inner sleeve 9 is fixedly connected with the expanding head 5 through the annular sheet 7, the expanding head 5 is inserted into the external drawing die 15, the gap between the outer sleeve 13 and the inner sleeve 9 is a drawing die cavity, and the steel pipe is subjected to cold drawing die expanding in the drawing die cavity;
a cutting groove 6 is formed in the connecting position of the pull rod 4 and the expansion head 5, a leather ring filled with lubricating oil is sleeved inside the cutting groove 6, the leather ring and the lubricating oil are convenient for lubricating the steel pipe in the diameter expanding process, and friction during diameter expanding is reduced.
The bottom base of the outer drawing die 15 comprises a semi-annular support 17 for fixing the outer side of the outer drawing die 15, the outer drawing die 15 and the semi-annular support 17 are fixed through locking bolts, the bottom of the semi-annular support 17 is installed on the bottom plate 16, a reinforcing rib plate 18 is fixedly installed between the semi-annular support 17 and the bottom plate 16, and the structural strength between the semi-annular support 17 and the bottom plate 16 is improved.
The end of the pull rod 4 is provided with an inserting end 19, the telescopic end of the hydraulic machine 3 is inserted into the inserting end 19, and the telescopic end is connected with the inserting end 19 through a shaft pin 20 for fixing.
When the cold drawing device is used, the integral design of the inner sleeve 9 and the outer sleeve 13 is made according to the pipe diameter and the thickness of a pipeline to be drawn, the whole die does not need to be replaced, the outer diameter of the inner sleeve 9 and the inner diameter of the outer sleeve 13 are designed, so that the thickness and the radius of a drawing die cavity between the inner sleeve 9 and the outer sleeve 13 can be determined, when the cold drawing device is used for drawing, one end of a steel pipe passes through the drawing die cavity after being pretreated, then the steel pipe is fixed on a transverse moving driving device through a steel chain and hooks, then the steel pipe is drawn, the steel pipe is pulled towards two sides in cooperation with the hydraulic machine 3, the steel pipe is formed and expanded.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a stainless steel seamless steel pipe hydraulic pressure cold drawing mechanism, includes cold drawing part (1), pull rod part (2) and hydraulic press (3), its characterized in that: the cold-drawing part (1) is fixedly installed through the base, the cold-drawing part (1) comprises an outer drawing die (15) and an outer sleeve (13) capable of adjusting the inner diameter of the outer drawing die (15), the outer sleeve (13) is inserted into the outer drawing die (15), the pull rod part (2) comprises a pull rod (4) and an expansion head (5), the pull rod (4) and the expansion head (5) are integrally connected, an inner sleeve (9) capable of adjusting the outer diameter of the expansion head (5) is sleeved on the outer side of the expansion head (5), the inner sleeve (9) is fixedly connected with the expansion head (5) through a ring sheet (7), the expansion head (5) is inserted into the outer drawing die (15), a gap between the outer sleeve (13) and the inner sleeve (9) is a drawing die cavity, and the steel pipe is expanded in the drawing die cavity for cold-drawing die expansion.
2. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 1 is characterized in that: the inner sleeve (9) comprises an integrated cylinder section (10), an outer expanding section (11) and a buffer section (12), wherein the buffer section (12) is arranged at the narrowest end of the inner diameter of the outer expanding section (11), and the cylinder section (10) is arranged at the widest end of the inner diameter of the outer expanding section (11).
3. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 2 is characterized in that: threaded holes are formed in the expansion head (5) and the inner sleeve (9), and the expansion head (5) and the inner sleeve (9) are fixed through two circles of bolts (8) on the circular ring piece (7) in a threaded mode.
4. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 1 is characterized in that: threaded holes are formed in the outer sleeve (13) and the outer drawing die (15), and the outer sleeve (13) and the outer drawing die (15) are fixed in a threaded mode through a second circle of bolts (14).
5. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 1 is characterized in that: a cutting groove (6) is formed in the connecting position of the pull rod (4) and the expansion head (5), and a leather ring filled with lubricating oil is sleeved inside the cutting groove (6).
6. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 1 is characterized in that: the bottom base of the outer drawing die (15) comprises a semi-annular support (17) for fixing the outer side of the outer drawing die (15), the outer drawing die (15) and the semi-annular support (17) are fixed through a locking bolt, the bottom of the semi-annular support (17) is installed on the bottom plate (16), and a reinforcing rib plate (18) is fixedly installed between the semi-annular support (17) and the bottom plate (16).
7. The hydraulic cold drawing mechanism for the stainless steel seamless steel tube according to claim 1 is characterized in that: the end part of the pull rod (4) is provided with an inserting end (19), the telescopic end of the hydraulic machine (3) is inserted into the inserting end (19), and the telescopic end is connected with the inserting end (19) through a shaft pin (20) for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022061605.5U CN213436365U (en) | 2020-09-19 | 2020-09-19 | Hydraulic cold drawing mechanism for stainless steel seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022061605.5U CN213436365U (en) | 2020-09-19 | 2020-09-19 | Hydraulic cold drawing mechanism for stainless steel seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213436365U true CN213436365U (en) | 2021-06-15 |
Family
ID=76325077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022061605.5U Expired - Fee Related CN213436365U (en) | 2020-09-19 | 2020-09-19 | Hydraulic cold drawing mechanism for stainless steel seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213436365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511272A (en) * | 2023-03-13 | 2023-08-01 | 苏州华创特材股份有限公司 | Cold drawing die and cold drawing production process for seamless special-shaped tube |
-
2020
- 2020-09-19 CN CN202022061605.5U patent/CN213436365U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511272A (en) * | 2023-03-13 | 2023-08-01 | 苏州华创特材股份有限公司 | Cold drawing die and cold drawing production process for seamless special-shaped tube |
| CN116511272B (en) * | 2023-03-13 | 2023-10-20 | 苏州华创特材股份有限公司 | Cold drawing die and cold drawing production process for seamless special-shaped tube |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |