CN201659188U - Sealing punch of internal high pressure forming tube end part - Google Patents
Sealing punch of internal high pressure forming tube end part Download PDFInfo
- Publication number
- CN201659188U CN201659188U CN2010201750040U CN201020175004U CN201659188U CN 201659188 U CN201659188 U CN 201659188U CN 2010201750040 U CN2010201750040 U CN 2010201750040U CN 201020175004 U CN201020175004 U CN 201020175004U CN 201659188 U CN201659188 U CN 201659188U
- Authority
- CN
- China
- Prior art keywords
- guide section
- sealing
- high pressure
- pressure forming
- pipe fitting
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a sealing punch of an internal high pressure forming tube end part, which comprises a body, wherein one end of the body is provided with a driving rod, and the other end thereof is provided with a guide section; and the front of the guide section is in a conical surface shape. The sealing punch is characterized in that: a sealing ring is arranged between the guide section and the driving rod, the side wall of the sealing ring tilts towards the guide section and has an included angle of 45 degrees to 85 degrees with the axis. The utility model has the advantages of simple structure and good sealing effect, and does not damage tubes to be processed.
Description
Technical field
The utility model relates to a kind of sealing device, particularly a kind of sealing punch of internal high pressure forming pipe fitting end.
Background technology
Internal high pressure forming (also being hydroforming hydro-forming) is to fill highly pressurised liquid in metal tube, make tube wall deformation and fit with shaping dies and form required part, wherein mould adopts the closed tubing cavity that forms of oil cylinder up and down, feed supplement is pushed at two as required simultaneously, the unlikely generation of tubing is expanded approach cracking phenomena.Range of application is plastic materials such as mild steel, stainless steel, aluminium alloy, copper alloy.Because the metal tube that generates with this technology does not have welding stress, formed an integral body, the intensity height is arranged, series of advantages such as light weight, thereby obtain very more and more widely application in fields such as Aero-Space, automobiles, rapid in the whole world and even domestic development, increasing manufacturer sets foot in wherein, has also driven the progress of correlation technique simultaneously.
And the required pressure ratio of the internal high pressure forming of tubing is higher, from 100Mpa to 300Mpa, even 400Mpa, therefore the sealed at both ends of tubing seems most important, the feed supplement drift that prior art (20081004325.0) adopts is because its seal section is straight, though it is simple like this, but reach the more sealing of high pressure, has only the magnitude of interference that strengthens feed supplement drift and metal tube inwall, pressure is big more, the magnitude of interference is big more, can produce very big damage to mould and pipe fitting to be processed, has also strengthened the difficulty of two ends feed supplement drift feeding simultaneously.The employing band O type cast formula that has, also can be because the metal pipe material inwall is rough serious wear, need to change constantly, very inconvenient.
The utility model content
The purpose of this utility model is to provide a kind of sealing punch of internal high pressure forming pipe fitting end, and it is not only simple in structure, good sealing effect and can not damage processed pipe fitting.
The technical scheme that realizes the utility model purpose is: a kind of sealing punch of internal high pressure forming pipe fitting end, comprise body, one end of this body is a drive rod, the other end is a guide section, the front portion of this guide section is the conical surface, it is characterized in that: have sealing ring between guide section and the drive rod, the sidewall of sealing ring is 45 °～85 ° angles to the guide section inclination and with axis.
The outer wall of described sealing ring draws in towards axis direction gradually near a side of guide section.
And guide section, drive rod have through hole, forms the highly pressurised liquid passage.
And guide section and sealing ring are the global formation structure.
And the lateral cross section of guide section and sealing ring is rounded.
And the lateral cross section of guide section and sealing ring is rectangular.
Advantage of the present utility model is: 1. simple in structure.2. good sealing effect.3. long service life.4. can not damage processed pipe fitting and mould.
Description of drawings
Fig. 1 is the sealing punch user mode reference diagram of internal high pressure forming pipe fitting end.
Fig. 2 is the cutaway view of the sealing punch front view of internal high pressure forming pipe fitting end.
Fig. 3 is when the lateral cross section of guide section and sealing ring is rounded, the sealing punch perspective view of internal high pressure forming pipe fitting end.
Fig. 4 is when the lateral cross section of guide section and sealing ring is rectangular, the sealing punch perspective view of internal high pressure forming pipe fitting end.
The specific embodiment
Referring to Fig. 1～4, the utility model is described further below with reference to embodiment.
A kind of sealing punch of internal high pressure forming pipe fitting end, comprise body 1, one end of this body is a drive rod 5, the other end is a guide section 7, the front portion of this guide section 7 is the conical surface, it is characterized in that: have sealing ring 2 between guide section 7 and the drive rod 5, the sidewall 6 of sealing ring 2 is 45 °～85 ° angles to guide section 2 inclinations and with axis 4.
During work up and down behind mould 9 matched moulds, the sealing punch of internal high pressure forming pipe fitting end enters processed pipe fitting 8 from two ends under the promotion of drive rod 5, with its sealing, highly pressurised liquid injects from highly pressurised liquid passage 3 then, combination seal drift extruding feed supplement is with processed pipe fitting 8 moulding, and after the moulding, the sealing punch of high-pressure forming pipe fitting end withdraws from from processed pipe fitting 8 under the effect of drive rod 5 fully, mould 9 separates up and down, and moulding finishes.
Be shaped in the tubing internal pressurization, during the feed supplement of two ends, sealing ring 2 is subjected to the highly pressurised liquid active force and outwards opens, and fits tightly with processed pipe fitting 8 inwalls, reaches the effect of sealing.Because contact area is little, near the line contact, do not need the big magnitude of interference just can realize that high pressure sealing also can realize compensation automatically, promptly when pressure was high more, sealing ring 2 was big more with the applying power of pipe fitting 8 inwalls, be not easy more to reveal, thus the sealing of realization super-pressure.Simultaneously, when machining back punching head when withdrawing from, owing to be along angle direction, the plate-like sealing ring 2 that leans forward inwardly compression unclamps, so withdraw from than being easier to, has also avoided producing at this moment the phenomenon of pulling pipe fitting 8.
And the outer wall 10 of described sealing ring 2 draws in towards axis 4 directions gradually near a side of guide section 7.
The outer wall 10 of sealing ring 2 draws in gradually towards axis 4 directions near a side of guide section 7 and makes the outer wall 10 of sealing ring 2 be the inclined-plane, and so the acute angle of sealing ring 2 just can not hung wound with it when the sealing punch of high-pressure forming pipe fitting end is clamp-oned processed pipe fitting 8 two ends.
Further technical scheme can be to have through hole along body 1, drive rod 5, forms highly pressurised liquid passage 3.
Highly pressurised liquid injects from highly pressurised liquid passage 3 during work.Because during the work of the sealing punch of internal high pressure forming pipe fitting end is paired use, therefore also can only in the sealing punch of a side internal high pressure forming pipe fitting end, highly pressurised liquid passage 3 be set, be convenient to control, save cost.
And guide section 7 and sealing ring 2 are the global formation structure.
The lateral cross section that further technical scheme also can be guide section 7 and sealing ring 2 is rounded.
The lateral cross section that further technical scheme can also be guide section 7 and sealing ring 2 is quadrangle.
The longitudinal cross-section shape of body 1 and sealing ring 2 can be according to the change of shape of processed pipe fitting 8, thereby is applicable to the high-pressure molding of various pipe fittings.
Claims (5)
1. the sealing punch of an internal high pressure forming pipe fitting end, comprise body, one end of this body is a drive rod, the other end is a guide section, the front portion of this guide section is the conical surface, it is characterized in that: have sealing ring between guide section and the drive rod, the sidewall of sealing ring is 45 °～85 ° angles to the guide section inclination and with axis.
2. the sealing punch of a kind of internal high pressure forming pipe fitting end according to claim 1 is characterized in that: the outer wall of described sealing ring draws in towards axis direction gradually near a side of guide section.
3. the sealing punch of a kind of internal high pressure forming pipe fitting end according to claim 1 is characterized in that: guide section, drive rod have through hole, form the highly pressurised liquid passage.
4. the sealing punch of a kind of internal high pressure forming pipe fitting end according to claim 1 is characterized in that: guide section and sealing ring are the global formation structure.
5. the sealing punch of a kind of internal high pressure forming pipe fitting end according to claim 1 and 2 is characterized in that: the lateral cross section of guide section and sealing ring is rounded.
6. the sealing punch of a kind of internal high pressure forming pipe fitting end according to claim 1 and 2 is characterized in that: the lateral cross section of guide section and sealing ring is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750040U CN201659188U (en) | 2010-04-23 | 2010-04-23 | Sealing punch of internal high pressure forming tube end part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201750040U CN201659188U (en) | 2010-04-23 | 2010-04-23 | Sealing punch of internal high pressure forming tube end part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659188U true CN201659188U (en) | 2010-12-01 |
Family
ID=43229598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201750040U Expired - Fee Related CN201659188U (en) | 2010-04-23 | 2010-04-23 | Sealing punch of internal high pressure forming tube end part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659188U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260784A (en) * | 2010-12-17 | 2013-08-21 | 麦格纳国际公司 | Apparatus and method for forming shaped articles from plural sheet metal blanks |
| CN111922173A (en) * | 2020-09-29 | 2020-11-13 | 浙大宁波理工学院 | Multi-stage omega-shaped pipe fluctuation internal high-pressure forming process |
| US11255433B2 (en) | 2014-04-17 | 2022-02-22 | Compart Systems Pte. Ltd. | Ultra-seal gasket for joining high purity fluid pathways |
-
2010
- 2010-04-23 CN CN2010201750040U patent/CN201659188U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260784A (en) * | 2010-12-17 | 2013-08-21 | 麦格纳国际公司 | Apparatus and method for forming shaped articles from plural sheet metal blanks |
| CN103260784B (en) * | 2010-12-17 | 2016-06-15 | 麦格纳国际公司 | For by the equipment of multiple sheet metal blank forming shaped article and method |
| US11255433B2 (en) | 2014-04-17 | 2022-02-22 | Compart Systems Pte. Ltd. | Ultra-seal gasket for joining high purity fluid pathways |
| US11300205B2 (en) | 2014-04-17 | 2022-04-12 | Compart Systems Pte. Ltd. | Ultra-seal gasket for joining high purity fluid pathways |
| TWI773416B (en) * | 2014-04-17 | 2022-08-01 | 新加坡商肯發系統私人有限公司 | Ring-shaped gasket for sealingly joining opposed fluid conduit ports and method of forming a high purity fluid joint |
| US11781651B2 (en) | 2014-04-17 | 2023-10-10 | Compart Systems Pte. Ltd | Ultra-seal gasket for joining high purity fluid pathways |
| CN111922173A (en) * | 2020-09-29 | 2020-11-13 | 浙大宁波理工学院 | Multi-stage omega-shaped pipe fluctuation internal high-pressure forming process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20110423 |