CN202438586U - Hydraulic bulging pipe end sealing device - Google Patents
Hydraulic bulging pipe end sealing device Download PDFInfo
- Publication number
- CN202438586U CN202438586U CN2012200742262U CN201220074226U CN202438586U CN 202438586 U CN202438586 U CN 202438586U CN 2012200742262 U CN2012200742262 U CN 2012200742262U CN 201220074226 U CN201220074226 U CN 201220074226U CN 202438586 U CN202438586 U CN 202438586U
- Authority
- CN
- China
- Prior art keywords
- pipe
- sealing
- pressure head
- slide block
- sealing device
- 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 - Lifetime
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model relates to a hydraulic bulging pipe end sealing device comprising a pressure head and a cylindrical sealing slide block arranged in the pressure head, wherein one end of the sealing slide block presses against a pipe end, and the part, pressing against the pipe end, of the sealing slide block is an outward-convex annular curved surface. The hydraulic bulging pipe end sealing device disclosed by the utility model enables axial force needed for sealing the pipe end to be small, the bulging quantity of a pipe billet to be large and the wall thickness reduction quantity to be little; only an inner chamfering is needed to be processed at the end of the pipe biller; and the hydraulic bulging pipe end sealing device can be used twice in hydraulic bulging.
Description
Technical field
The utility model relates to a kind of hydraulic expanding-forming end sealing device.
Background technology
In the pipe hydraulic expanding-forming, guarantee that end sealing reliably is the necessary condition that is shaped, traditional end sealing mode has flat envelope formula sealing, the sealing of ring-type sharp knife formula and the sealing of frustum plug-in type.Fig. 1 is flat envelope formula sealing sketch map, directly withstands the ring end face of pipe through the nose of punch plane, and 2～3mm is pushed at the pipe two ends simultaneously, makes its sealing, is fit to medium bulging pressure and the very flat situation of pipe end.Fig. 2 is a ring-type sharp knife formula sealing sketch map, and punch end face is processed into the high ring-type sharp knife of 1.5mm, lets sharp knife insert in the pipe end face metal, is sealed jointly by sharp knife and drift plane, is suitable for the higher place of thick-walled pipe and pressure.Fig. 3 is a frustum plug-in type sealing sketch map, the frustum of a cone of being with straight section is processed in the drift front, during the tube sealing mouth; Frustum is inserted in the pipe, and tube wall is clipped between frustum and the mould, again by frustum root flat seal pipe end; Be applicable to the bulging of light-wall pipe, require pipe end plane and endoporus fine finishining.
More than three kinds of common end sealing modes, all require fine finishining pipe end face, pipe end is whole plastic deformation takes place to be realized sealing through making, the axial force that needs is big, is applicable to the little occasion of pipe bulging amount.
The special-shaped pipe type element of large-scale variable cross-section d-axis, such as automobile axle housing, physical dimension is big, and the cross sectional dimensions difference is big, and complex-shaped.When using such part of steel pipe swelling pressure manufacturing process manufacturing, select the seamless steel pipe of certain specification for use, earlier its two ends undergauge is carried out hydraulic expanding-forming once or twice with the middle part again, obtain the preform pipe, carry out press forming at last and obtain product.During the pipe hydraulic expanding-forming, select above three kinds of sealing means for use, axial thrust can't useful effect in big bulging district, pipe middle part, pipe middle part wall thickness reduction amount is big, is prone to spalling.In addition,, need process once more, otherwise be difficult to guarantee the pipe end positiver sealing pipe end behind the first time hydraulic expanding-forming if pipe need carry out twice hydraulic expanding-forming behind the undergauge.
The utility model content
The utility model technical problem to be solved is: the axial force that provides a kind of end sealing to need is little; Can be with the axial thrust useful effect at the pipe middle part; The bulging amount is big, and the wall thickness reduction amount is little, and in twice hydraulic expanding-forming reusable hydraulic expanding-forming end sealing device.
For addressing the above problem; The technical scheme that the utility model adopts is: hydraulic expanding-forming end sealing device; Comprise pressure head, be arranged on the columned sealing slide block in the pressure head; One end and the pipe end of said sealing slide block are inconsistent, and sealing slide block and pipe end conflict position are the circle ring surface of evagination.
Described sealing slide block is arranged in the pressure head through sealed briquette; The set inside of pressure head has cylindrical hole, and sealing slide block interference fits is arranged in the cylindrical hole, and the outer end of sealing slide block is provided with sealed briquette; The outer end of sealed briquette is provided with flange, and flange is connected with pressure head through screw.
Be provided with slider bore in the described sealing slide block, be provided with the pressure head passage in the pressure head, an end of pressure head passage is provided with pipe joint, and the other end of pressure head passage is connected with an end of slider bore, and the other end of slider bore is connected with the endoporus of pipe.
The beneficial effect of the utility model is:
1, end sealing needs axial force little, and pipe bulging amount is big, and the wall thickness reduction amount is little.
2, the pipe end face only need process interior chamfering, and reusable in twice hydraulic expanding-forming.
Description of drawings
Fig. 1 is the flat envelope formula sealing sketch map described in the background technology.
Fig. 2 is the ring-type sharp knife formula sealing sketch map described in the background technology.
Fig. 3 is the frustum plug-in type sealing sketch map described in the background technology.
Fig. 4 is the sketch map of pipe behind the undergauge of the utility model embodiment.
Fig. 5 be the utility model embodiment the first time pipe behind the hydraulic expanding-forming sketch map.
Fig. 6 be the utility model embodiment the second time pipe behind the hydraulic expanding-forming sketch map.
Fig. 7 be the utility model embodiment the first time hydraulic expanding die structural representation.
Fig. 8 is the structural representation of the sealing device of the utility model embodiment.
Fig. 9 is the structural representation of sealing slide block in the sealing device of the utility model embodiment.
Figure 10 is the structural representation of sealed briquette in the sealing device of the utility model embodiment.
Among the figure: 1, left sealing device, 2, left sliding block, 3, the patrix guide block, 4, cope match-plate pattern, 5, go up stuck-module; 6, right sliding block, 7, right sealing device, 8, lower bolster, 9, the counterdie guide block, 10, stuck-module down; 11, pipe, 12, pressure head, 121, the pressure head passage, 13, pipe joint; 14, sealing slide block, 141, screwed hole, 15, sealed briquette, 16, screw.
The specific embodiment
Through specific embodiment the utility model hydraulic expanding-forming end sealing device is done further to describe in detail below.
Like Fig. 4 the sketch map of pipe behind the undergauge of the utility model embodiment, pipe length 1487mm, middle part external diameter 180mm, both sides straight-arm partial-length 366.5mm, outer end diameter 146mm, wall thickness 10mm, the interior chamfering that end processing is 1 * 45 °.
Fig. 5 be the utility model embodiment the first time pipe behind the hydraulic expanding-forming sketch map, pipe length 1347mm, outer end diameter still is 146mm, the middle part external diameter becomes 260mm.
Fig. 6 be the utility model embodiment the second time pipe behind the hydraulic expanding-forming sketch map, pipe length 1275mm, outer end diameter still is 146mm, the middle part maximum outside diameter becomes 329mm.
Fig. 7 be the utility model embodiment the first time hydraulic expanding die structural representation, die ontology by left sealing device 1, left sliding block 2, patrix guide block 3, cope match-plate pattern 4, go up stuck-module 5, right sliding block 6, right sealing device 7, lower bolster 8, counterdie guide block 9, stuck-module 10 is formed down.Left side sliding block 2, right sliding block 6 slide in the cavity that patrix guide block 3, counterdie guide block 9 form.Patrix guide block 3 links to each other with cope match-plate pattern 4, and counterdie guide block 9 links to each other with lower bolster 8.The both ends of the surface of pipe 11 contact with left and right sealing device, and meanwhile, the tapered intermediate portion of pipe 11 contacts with the die cavity of the left and right sliding block of mould.
As shown in Figure 8; The described hydraulic expanding-forming end sealing of the utility model device; Comprise pressure head 12, be arranged on the columned sealing slide block 14 in the pressure head 12, an end and the pipe end of said sealing slide block 14 are inconsistent, and sealing slide block 14 is the circle ring surface of evagination with pipe end conflict position.As shown in Figure 9, the outside of sealing slide block 14 is the face of cylinder, and diameter is Φ 240mm, length 50mm, and interference fits is contained in the cylindrical hole of pressure head 12, and its right-hand member has outer convex surface, contacts with the interior chamfering of pipe 11 end faces and realizes sealing, curvature of curved surface radius R
1=100mm, the right-hand member tail end inserts pipe 17 inside, and the right part diameter is Φ 117mm.There is the screwed hole 141 of a M16 at the center of sealing slide block 14.
As optimal way; Described sealing slide block 14 is arranged in the pressure head 12 through sealed briquette 15, and the set inside of pressure head 12 has cylindrical hole, and sealing slide block 14 interference fits are arranged in the cylindrical hole; And the outer end of sealing slide block 14 is provided with sealed briquette 15; The outer end of sealed briquette 15 is provided with flange, and its diameter is Φ 289.5mm, length 30mm, and flange is connected with pressure head 12 through screw 16.Above-mentioned sealing slide block 14 can have multiple version with the syndeton of pressure head 12, is not limitation and said structure, all belongs to the protection category of the utility model.The structure of sealed briquette 15 is shown in figure 10.Sealed briquette 15 is a multidiameter with holes, and its left end cylindrical interference cooperates in the cylindrical hole of the pressure head 12 of packing into, and the left side is pressed on the sealed sliding 14, and face of cylinder diameter is that Φ 240mm, length are 60mm.Sealed briquette 15 rear ends have flange, and its diameter is Φ 289.5mm, length 30mm, have shoulder hole on the flange and are used for the screwed hole that dismounting is used.Sealed briquette 15 inner chambers are cylindrical hole, and its aperture is Φ 145.8mm, than the little 0.2mm of 17 outer end diameter of pipe behind the undergauge.
Be provided with pressure head passage 121 in the described pressure head 12, an end of pressure head passage 121 is provided with pipe joint 13, and the other end of pressure head passage 121 is connected with an end of screwed hole 141, and the other end of screwed hole 141 is connected with the endoporus of pipe 11.
Above-mentioned hydraulic expanding-forming end sealing device requires sealing pipe end to add 1 * 45 ° interior chamfering in use.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.
Claims (3)
1. hydraulic expanding-forming end sealing device comprises pressure head, is arranged on the columned sealing slide block in the pressure head, and it is characterized in that: an end and the pipe end of said sealing slide block are inconsistent, and seals slide block and pipe end conflict position is the circle ring surface of evagination.
2. hydraulic expanding-forming end sealing device according to claim 1; It is characterized in that: described sealing slide block is arranged in the pressure head through sealed briquette; The set inside of pressure head has cylindrical hole, and sealing slide block interference fits is arranged in the cylindrical hole, and the outer end of sealing slide block is provided with sealed briquette; The outer end of sealed briquette is provided with flange, and flange is connected with pressure head through screw.
3. hydraulic expanding-forming end sealing device according to claim 1 and 2; It is characterized in that: be provided with slider bore in the described sealing slide block; Be provided with the pressure head passage in the pressure head; One end of pressure head passage is provided with pipe joint, and the other end of pressure head passage is connected with an end of slider bore, and the other end of slider bore is connected with the endoporus of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200742262U CN202438586U (en) | 2012-03-02 | 2012-03-02 | Hydraulic bulging pipe end sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200742262U CN202438586U (en) | 2012-03-02 | 2012-03-02 | Hydraulic bulging pipe end sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438586U true CN202438586U (en) | 2012-09-19 |
Family
ID=46820041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200742262U Expired - Lifetime CN202438586U (en) | 2012-03-02 | 2012-03-02 | Hydraulic bulging pipe end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438586U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601206A (en) * | 2012-03-02 | 2012-07-25 | 张家港合瑞车桥有限公司 | Hydraulic bulging pipe end sealing device |
| CN103048203A (en) * | 2013-01-23 | 2013-04-17 | 哈尔滨工业大学 | Wall thickness linear model-based pipe mechanical property hydro-bugling testing method |
| CN103551467A (en) * | 2013-11-01 | 2014-02-05 | 辉泰（太仓）汽配有限公司 | Tooth expansion connecting process |
| CN104634665A (en) * | 2014-09-12 | 2015-05-20 | 北京航空航天大学 | Pipe liquid filling bulging test method and device |
| CN110270620A (en) * | 2019-06-26 | 2019-09-24 | 大连瑞正科技有限公司 | A kind of pipe fitting inside high-pressure forming method |
| CN114486550A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Free bulging test method and system for downhole variable-temperature patching pipe |
-
2012
- 2012-03-02 CN CN2012200742262U patent/CN202438586U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601206A (en) * | 2012-03-02 | 2012-07-25 | 张家港合瑞车桥有限公司 | Hydraulic bulging pipe end sealing device |
| CN103048203A (en) * | 2013-01-23 | 2013-04-17 | 哈尔滨工业大学 | Wall thickness linear model-based pipe mechanical property hydro-bugling testing method |
| CN103551467A (en) * | 2013-11-01 | 2014-02-05 | 辉泰（太仓）汽配有限公司 | Tooth expansion connecting process |
| CN104634665A (en) * | 2014-09-12 | 2015-05-20 | 北京航空航天大学 | Pipe liquid filling bulging test method and device |
| CN110270620A (en) * | 2019-06-26 | 2019-09-24 | 大连瑞正科技有限公司 | A kind of pipe fitting inside high-pressure forming method |
| CN114486550A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Free bulging test method and system for downhole variable-temperature patching pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202438586U (en) | Hydraulic bulging pipe end sealing device | |
| CN202438587U (en) | Combined sealing device for tube ends during hydraulic bulging | |
| CN102601206A (en) | Hydraulic bulging pipe end sealing device | |
| CN101011715A (en) | Device for reducing friction of guided region when forming high pressure in pipe | |
| CN102451868A (en) | Hydraulic forming method based on wave type internal-pressure-controlled loading mode | |
| CN103658293A (en) | Magnesium alloy special-shaped pipe machining device | |
| CN103785755B (en) | The hydraulic pressure mfg. moulding die of the double-deck pipe fitting of binary channels, manufacturing system and manufacture method | |
| CN204320943U (en) | A kind of spiral steel pipe bottlenecking rounding die | |
| CN101693263B (en) | Method for preparing pipe bending part by adopting flexible extrusion forming | |
| CN103691796A (en) | Large internal high-pressure forming die | |
| CN208083148U (en) | A kind of staged ram head for pipe end high pressure sealing | |
| CN102601205B (en) | Hydraulic bulging pipe end combination sealing device | |
| CN201487420U (en) | Stainless steel sealing pipe joint for reinforced double-clamping curved surface | |
| CN104385187B (en) | Pneumatic rubber expanding arbor | |
| CN204226894U (en) | Thin-wall stainless steel dicyclo press type pipe structure | |
| CN203426230U (en) | Pipe outside high pressure forming device | |
| CN104226778A (en) | Miniature pipe two-way hydraulic forming mold | |
| CN206382396U (en) | High-pressure dynamic seal device | |
| CN203051298U (en) | Combined plunger type cylinder | |
| CN105081046B (en) | Hydroforming flexible seal device | |
| CN209849639U (en) | Push head for large-pipe-diameter internal high-pressure forming process | |
| CN204093896U (en) | Miniature tube bidirectional hydraulic make-up mould | |
| CN204093897U (en) | Miniature tube bidirectional hydraulic make-up device | |
| CN201120418Y (en) | Hot extrusion steel tube blank trail pad | |
| CN204545135U (en) | Automotive brake fluid pipe connector servo cold-punching mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |