CN201461590U - Sectional sealing head mechanism for hydraulic forming of pipes - Google Patents
Sectional sealing head mechanism for hydraulic forming of pipes Download PDFInfo
- Publication number
- CN201461590U CN201461590U CN2009200767501U CN200920076750U CN201461590U CN 201461590 U CN201461590 U CN 201461590U CN 2009200767501 U CN2009200767501 U CN 2009200767501U CN 200920076750 U CN200920076750 U CN 200920076750U CN 201461590 U CN201461590 U CN 201461590U
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- sealing
- head mechanism
- contiguous block
- termination
- sealing head
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Abstract
The utility model provides a sectional sealing head mechanism for hydraulic forming of pipes, which comprises a hydraulic cylinder and is characterized in that: a connecting block is arranged on the hydraulic cylinder; a sealing rod is arranged on the connecting block; a flange snap ring is sleeved on the sealing rod; the end face of the sealing rod is connected with a sealing end head; the parts are fastened by bolts and can be adjusted; and the sealing end head is inserted into a die guide cavity consisting of an upper die and a lower die. The sectional sealing head mechanism for the hydraulic forming of the pipes can decrease the die manufacturing difficulty and die repairing, is convenient to adjust, reduces the abrasion of the dies, prolongs the service life of the die and improves the sealing effect and the qualification rate of products. The sectional sealing head mechanism is suitable for experiments associated with the hydraulic forming of the pipes, trial-manufacture of parts and the need of mass production. Compared with the traditional sealing head, the sectional sealing head mechanism has the advantages of conveniently adjusting position, reducing the abrasion with the dies and improving the sealing effect, along with modularized design, convenient processing and replacement and other advantages, has a wide application market, and is suitable for various fields of hydraulic forming processing.
Description
Technical field
The utility model relates to hydraulic forming mechanism field, relates in particular to the sealing head mechanism that relates in the tubing hydraulic forming system, and this mechanism is installed on the oil hydraulic cylinder, can make things convenient for and accurately adjusts the position, realizes the centering of sealing head and mold cavity shaft axis.
Background technique
Compare with traditional punching press, welding procedure, adopt the part of fittings hydraulic formation technology manufacturing to have advantages such as in light weight, good rigidity, economical with materials.This technology has been used in relevant manufacturing field such as automobile, space flight, aircraft.The fittings hydraulic formation basic craft course is as described below:
At first tubing is put into counterdie, closed then patrix, the pipe fitting two ends are sealed with sealing head, and to full of liquid medium in the tube chamber, in pressurization bulging deformation process, two sealing heads are inwardly advanced simultaneously by oil hydraulic cylinder and drive and realize that material is additional, and pipe fitting is subjected to internal pressure and the generation plastic deformation of axial advance effect tube wall and the mold cavity of fitting, thereby obtains the part of required form.
One of critical component of hydraulic forming wherein, sealing head mechanism, this mechanism is connected oil hydraulic cylinder, and realize end sealing and advance the feed supplement effect, be one of key component of fittings hydraulic formation system.Sealing head mechanism generally adopts monolithic construction directly to be connected with oil hydraulic cylinder at present, as shown in Figure 1, comprises that integral seal head, liquid medium passage reach and by bolt sealing head be connected on the oil hydraulic cylinder.In the actual production and the position of mould relation requires hydraulic forming mold die cavity internal surface and sealing head surface gap usually between 0.1-0.3mm, with the guiding that guarantees to advance, therefore requires sealing head and the accurate centering of mold cavity shaft axis.
Though the integral seal head under the technology has characteristic of simple structure at present, but because being rigidly connected of sealing head and cylinder do not possess the characteristics of the position property adjusted, realize the accurate centering with the mold cavity shaft axis, very high to the required precision of the manufacturing of oil hydraulic cylinder, mould and sealing head mechanism and installation.This has not only put forward high manufacture cost, is not easy to install yet.Install because of sealing head and mold cavity shaft axis and to misalign the uneven loading action that causes,, influence mould and sealing head working life, influence sealing effect and part forming the friction that increases between mold cavity and sealing head.
In sum, now need a kind of energy convenience and accurately adjust the position, realize the fittings hydraulic formation sealing head mechanism of the centering of sealing head and mold cavity shaft axis
The model utility content
In order to address the above problem, the utility model provides a kind of traditional hydraulic forming sealing head mechanism that is different from, fittings hydraulic formation of the present utility model with its purpose of design of segmented sealing head mechanism is: sealing head mechanism connects oil hydraulic cylinder, sealing pipe end, it is the passage that highly pressurised liquid injects tube chamber, the shaft axis that sealing head is installed requires and mold cavity shaft axis centering, when advancing to reduce oil hydraulic cylinder and the friction of mould.This utility model is optimized design to the sealing head structure, based on following thought:
1) adopts the design of split multistage modular construction;
2) sealing head mechanism satisfies the convenience that the position is adjusted when installing;
3) mechanism of sealing head mechanism centering position property easy to adjust does not influence the connectivity of highly pressurised liquid passage.
Concrete structure of the present utility model is as described below:
A kind of fittings hydraulic formation comprises oil hydraulic cylinder with segmented sealing head mechanism, it is characterized in that:
One contiguous block is installed on the described oil hydraulic cylinder, one seal bar is installed on this contiguous block, the flange clasp is enclosed within on the seal bar again, connection one sealing termination is set on the end face of sealing bar, insert in the mould directed cavity that is combined into by upper die tooling and bed die the sealing termination again.
Segmented sealing head mechanism has replaced original formula sealing head mechanism that is fixed as one, and makes the utlity model has conveniently to adjust the sealing head position, realizes the function of the centering of sealing head and mold cavity shaft axis.
According to a kind of fittings hydraulic formation of the present utility model segmented sealing head mechanism, it is characterized in that, described sealing termination be taper round platform formula design, in the sealing termination, be provided with two bolt connecting through holes and a medium injection channel, wherein medium injection channel is arranged at the shaft axis place of sealing termination, and two bolt connecting through holes are separately positioned on the both sides of a medium injection channel and in parallel.
End face diameter and termination length are decided by pipe fitting outside dimension and wall thickness, different according to pipe fitting outside dimension and wall thickness, adjust end face diameter, termination length and taper round platform become angle with horizontal plane angle value, realize that pipe end is enlarged the sealing that back contact step surface forms pipe end expansion contact-type by frustum.
Sealing pipe end, contact mold cavity, accurately leading role are mainly played in the sealing termination.
With segmented sealing head mechanism, it is characterized in that the end surface shape of described sealing termination also can be oval taper or rectangle according to a kind of fittings hydraulic formation of the present utility model.
The end surface shape of sealing termination is according to the tube end shape decision of preforming pipe.
According to a kind of fittings hydraulic formation of the present utility model segmented sealing head mechanism, it is characterized in that, described seal bar, its seal bar end face diameter is more smaller than sealing termination diameter, the seal bar end is provided with the position of two bolt connecting through holes of two corresponding sealing terminations and the tapped hole identical with its diameter, be provided with the medium injection channel No. two at the shaft axis place of seal bar, its size is slightly larger than a medium injection channel of sealing termination, be provided with seal ring No. one between No. two medium injection channels and two tapped holes, sealing rod end seat is the design of round platform stepwise.
The shaft length of seal bar and the sectional shape of seal bar end face are by the length and the shape decision of sealing termination, and No. two medium injection channels of seal bar are realized not having leaking by a seal ring with a medium injection channel of sealing termination and connected.
According to a kind of fittings hydraulic formation of the present utility model segmented sealing head mechanism, it is characterized in that, the tapped hole of described seal bar end face screws in this tapped hole with sealing termination connecting bolt from two bolt connecting through holes that seal the termination, and seal bar and sealing termination are linked together.
Bolted seal bar is safe and reliable with the sealing termination, for convenience detach and adjusting.
With segmented sealing head mechanism, it is characterized in that according to a kind of fittings hydraulic formation of the present utility model have 3 on the described flange clasp along the circumferential uniform slotted eye of flange, flange clasp inside is a lumen orifice and No. two lumen orifice of interior step type.The slightly larger in diameter of a lumen orifice and No. two lumen orifice is in the round platform rank diameter of the sealing rod end seat of correspondence, and is mated.
The annexation of flange clasp and seal bar is, seal bar is installed on the contiguous block, the flange clasp packs into seal bar, the slightly larger in diameter of a lumen orifice and No. two lumen orifice is in the round platform rank diameter of the sealing rod end seat of correspondence, between difference all with the accurate adjustment that can realize seal bar with realize that flange clasp fastening seal bar is a purpose.
According to a kind of fittings hydraulic formation of the present utility model segmented sealing head mechanism, it is characterized in that, described contiguous block is provided with circumferentially uniform and corresponding with the slotted eye position of flange clasp contiguous block tapped hole of 3 edges, screw in this contiguous block tapped hole with flange bolt from slotted eye, the flange clasp is connected with contiguous block, also be provided with circumferentially uniform bolt hole of 3 edges on the contiguous block, be connected with the oil hydraulic cylinder tapped hole of oil hydraulic cylinder by the contiguous block bolt, in addition, also be provided with medium in the shaft axis position at this contiguous block middle part and inject tube chamber, this medium injects the tube chamber slightly larger in diameter in No. two medium injection channels of seal bar, injects between tube chamber and contiguous block tapped hole and the bolt hole at medium to be provided with seal ring No. two.
Contiguous block determines not have the perforation of leakage by the medium injection tube chamber of No. two seal ring realization contiguous blocks and No. two medium injection channels of seal bar according to the cylinder bar size of oil hydraulic cylinder.
Fittings hydraulic formation of the present utility model can conveniently be adjusted the sealing head position with segmented sealing head mechanism, realizes the centering of sealing head and mold cavity shaft axis.
Use fittings hydraulic formation of the present utility model to obtain following beneficial effect with segmented sealing head mechanism:
1. the shaft axis centering of using the utility model can conveniently realize sealing head and mold cavity is improved die life, reduces mould manufacturing, maintenance cost.
2. the utility model adopts modular design, easily processes, is convenient to connect, and is convenient for changing.
3. use the utility model to improve manufacturing efficiency, reduce the part reject rate, quicken to promote the market competitiveness of hydroform product.
Description of drawings
Fig. 1 is the structural representation of the integral seal head mechanism under the prior art;
Fig. 2 is the concrete structure schematic representation of fittings hydraulic formation of the present utility model with segmented sealing head mechanism;
Fig. 3 is the working state concrete structure schematic representation of fittings hydraulic formation of the present utility model with segmented sealing head mechanism;
Fig. 4 is the concrete structure schematic representation of fittings hydraulic formation of the present utility model with the sealed end head part of segmented sealing head mechanism;
Fig. 5 is the concrete structure schematic representation of fittings hydraulic formation of the present utility model with the seal bar part of segmented sealing head mechanism;
Fig. 6 is the concrete structure schematic representation of fittings hydraulic formation of the present utility model with the flange clasp part of segmented sealing head mechanism;
Fig. 7 is the concrete structure schematic representation of fittings hydraulic formation of the present utility model with the contiguous block part of segmented sealing head mechanism;
Fig. 8 is the plan view of fittings hydraulic formation of the present utility model with the contiguous block part of segmented sealing head mechanism.
Among the figure: A-bolt connecting through hole, medium injection channel of B-, C-tapped hole, No. two medium injection channels of D-, E-slotted eye, F-contiguous block tapped hole, the G-bolt hole, the H-medium injects tube chamber, 1-oil hydraulic cylinder, the 2-contiguous block, 3-seal bar, 4-flange clasp, 5-seals the termination, 6-seal bar end face, seal ring of 7-, 8-sealing rod end seat, 9-sealing termination connecting bolt, lumen orifice of 10-, No. two lumen orifice of 11-, the 12-flange bolt, 13-contiguous block bolt, 14-oil hydraulic cylinder tapped hole, No. two seal rings of 15-, the 16-upper die tooling, 17-bed die, 18-mould directed cavity.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further
To shown in Figure 8, fittings hydraulic formation of the present utility model is with the concrete installation of segmented sealing head mechanism and operate as described below as Fig. 2:
1) install mould 16, bed die 17 and oil hydraulic cylinder 1 after, utilize contiguous block bolt 13 to be connected with oil hydraulic cylinder tapped hole 14 on the oil hydraulic cylinder by the bolt hole G on the contiguous block 2, contiguous block 2 is fixedly connected on the oil hydraulic cylinder 1.
2) seal bar 3 is passed flange clasp 4, and flange bolt 12 is fixedly connected on the flange clasp on the contiguous block by slotted eye E on the flange clasp and the contiguous block tapped hole F on the contiguous block 2.Oil hydraulic cylinder 1 drives seal bar 3, and the sealing termination 5 that the seal bar end is provided with is fed into mould directed cavity 8 end faces that upper die tooling 16 and bed die 17 are combined into.Because the slightly larger in diameter of a lumen orifice 10 and No. two lumen orifice 11 is in the round platform rank diameter of the sealing rod end seat 8 of correspondence, leave the adjusting play each other, when loosening flange clasp and flange bolt, can conveniently adjust the seal bar position, after seal bar shaft axis and mould directed cavity 18 shaft axis centerings, clamp flange clasp and flange bolt, round platform rank and a lumen orifice of flange latch closure, No. two lumen orifice of sealing rod end seat closely cooperate (the round platform rank are pressed with a lumen orifice, No. two lumen orifice and pressed mutually), and seal bar promptly is fixed.
3) operation oil hydraulic cylinder 1 drive seal bar 3 enters in the mould directed cavity 18, two bolt connecting through hole A that sealing termination connecting bolt 9 screws in setting on the sealing termination 5 reach two tapped hole C on the seal bar corresponding with it, the termination will be sealed and seal bar is fastenedly connected, this moment can be by loosening sealing termination connecting bolt, further fine setting seals tip position, when with the accurate centering of mould directed cavity 18 shaft axiss after, fit sealing termination connecting bolt will seal the termination and fix.
4) between medium injection channel B and No. two medium injection channel D by seal ring 7 sealings, No. two medium injection channels are injected between the tube chamber H with medium and are sealed by No. two seal rings 15.
5) medium injects the diameter of tube chamber H diameter greater than No. two medium injection channel D, No. two medium injection channel diameters are greater than the diameter of a medium injection channel B, when making fine setting seal bar 3 shaft axis positions and sealing 5 shaft axis positions, termination, do not influence medium injection channel, No. two medium injection channels and medium and inject perforation between the tube chamber.
6) shaft axis of contiguous block 2, seal bar 3, flange clasp 4, sealing termination 5 and mould directed cavity 18 is a straight line centering.
7) install said apparatus, primer fluid cylinder pressure (1) can carry out the fittings hydraulic formation operation.
Sectional sealing head mechanism for hydraulic forming of pipes of the present utility model not only can reduce the mould manufacture difficulty, minimizing repairs a die, is convenient to adjust, and also can reduce die wear, prolong die life, lift-off seal effect, the product percent of pass that improves. The utility model modern design, applicability are strong, are applicable to fittings hydraulic formation correlation test, part trial-production and big need of production. Compare with the conventional seals head that to have a position easy to adjust, reduce the fretting wear with mould, improve sealing effectiveness, modularized design, be convenient to the advantages such as processing and replacing, have wide application market, be applicable to various hydroforming manufacture fields.
Claims (7)
1. a fittings hydraulic formation comprises oil hydraulic cylinder (1) with segmented sealing head mechanism, it is characterized in that:
Described oil hydraulic cylinder (1) is gone up a contiguous block (2) is installed, one seal bar (3) is installed on this contiguous block, again flange clasp (4) is enclosed within on the seal bar, connection one sealing termination (5) is set on the end face of sealing bar, and insert in the mould directed cavity (18) that is combined into by upper die tooling (16) and bed die (17) the sealing termination again;
The shaft axis of described contiguous block (2), seal bar (3), flange clasp (4), sealing termination (5) and mould directed cavity (18) is a straight line centering.
2. a kind of fittings hydraulic formation as claimed in claim 1 segmented sealing head mechanism, it is characterized in that, described sealing termination (5) be taper round platform formula design, in the sealing termination, be provided with two bolt connecting through holes (A) and a medium injection channel (B), wherein medium injection channel is arranged at the shaft axis place of sealing termination (5), and two bolt connecting through holes are separately positioned on the both sides of a medium injection channel and in parallel.
3. a kind of fittings hydraulic formation as claimed in claim 2 is characterized in that with segmented sealing head mechanism the end surface shape of described sealing termination (5) also can be oval taper or rectangle.
4. a kind of fittings hydraulic formation as claimed in claim 1 segmented sealing head mechanism, it is characterized in that, described seal bar (3), its seal bar end face (6) diameter is more smaller than sealing termination (5) diameter, and the seal bar end is provided with the position of two bolt connecting through holes (A) of two corresponding sealing terminations and the tapped hole identical with its diameter
(C), be provided with No. two medium injection channels (D) at the shaft axis place of seal bar, its size is slightly larger than a medium injection channel (B) of sealing termination, is provided with a seal ring (7) between No. two medium injection channels and two tapped holes, and sealing rod end seat (8) is the design of round platform stepwise.
5. a kind of fittings hydraulic formation as claimed in claim 4 segmented sealing head mechanism, it is characterized in that, the tapped hole (C) of described seal bar end face (6), to seal termination connecting bolt (9) and screw in this tapped hole, seal bar and sealing termination will be linked together from two the bolt connecting through holes (A) that seal termination (5).
6. a kind of fittings hydraulic formation as claimed in claim 1 segmented sealing head mechanism, it is characterized in that, have 3 on the described flange clasp (4) along the circumferential uniform slotted eye (E) of flange, flange clasp inside is a lumen orifice (10) and No. two lumen orifice (11) of interior step type, the slightly larger in diameter of a lumen orifice and No. two lumen orifice is in the round platform rank diameter of the sealing rod end seat (8) of correspondence, and is mated.
7. a kind of fittings hydraulic formation as claimed in claim 1 segmented sealing head mechanism, it is characterized in that, described contiguous block (2) is provided with circumferentially uniform and corresponding with slotted eye (E) position of flange clasp (4) contiguous block tapped hole (F) of 3 edges, screw in this contiguous block tapped hole with flange bolt (12) from slotted eye, the flange clasp is connected with contiguous block, also be provided with circumferentially uniform bolt hole (G) of 3 edges on the contiguous block, be connected with the oil hydraulic cylinder tapped hole (14) of oil hydraulic cylinder (1) by contiguous block bolt (13), in addition, also be provided with medium in the shaft axis position at this contiguous block middle part and inject tube chamber (H), this medium injects the tube chamber slightly larger in diameter in No. two medium injection channels (D) of seal bar (3), injects between tube chamber and contiguous block tapped hole and the bolt hole at medium to be provided with No. two seal rings (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200767501U CN201461590U (en) | 2009-06-22 | 2009-06-22 | Sectional sealing head mechanism for hydraulic forming of pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200767501U CN201461590U (en) | 2009-06-22 | 2009-06-22 | Sectional sealing head mechanism for hydraulic forming of pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461590U true CN201461590U (en) | 2010-05-12 |
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ID=42388943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200767501U Expired - Lifetime CN201461590U (en) | 2009-06-22 | 2009-06-22 | Sectional sealing head mechanism for hydraulic forming of pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461590U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179439A (en) * | 2011-01-07 | 2011-09-14 | 西安交通大学 | Thick-wall pipe hydroforming device |
| CN104785603A (en) * | 2015-05-13 | 2015-07-22 | 宁波钜智自动化装备有限公司 | Separated-type plug for processing of internal high-pressure forming pipe fitting |
| CN105081046A (en) * | 2014-05-05 | 2015-11-25 | 上海宝钢高新技术零部件有限公司 | Hydraulic forming flexible sealing apparatus |
| CN106862360A (en) * | 2017-01-16 | 2017-06-20 | 柳州科瑞科技有限公司 | A kind of internal high pressure forming of embedded occlusion sealing structure is cut somebody's hair |
| CN109079019A (en) * | 2018-08-29 | 2018-12-25 | 河南兴迪锻压设备制造有限公司 | A kind of interior high pressure sealing push top |
| CN106853473B (en) * | 2016-12-06 | 2019-02-22 | 柳州科瑞科技有限公司 | A kind of zigzag push top for forming high pressure in pipe |
| CN111365319A (en) * | 2020-03-26 | 2020-07-03 | 燕山大学 | Novel hydraulic cylinder for hydraulic bulging |
| CN115255107A (en) * | 2022-07-05 | 2022-11-01 | 保隆(安徽)汽车配件有限公司 | Hydraulic forming sealing head and design method thereof |
-
2009
- 2009-06-22 CN CN2009200767501U patent/CN201461590U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179439A (en) * | 2011-01-07 | 2011-09-14 | 西安交通大学 | Thick-wall pipe hydroforming device |
| CN102179439B (en) * | 2011-01-07 | 2014-06-04 | 西安交通大学 | Thick-wall pipe hydroforming device |
| CN105081046A (en) * | 2014-05-05 | 2015-11-25 | 上海宝钢高新技术零部件有限公司 | Hydraulic forming flexible sealing apparatus |
| CN105081046B (en) * | 2014-05-05 | 2017-11-28 | 上海宝钢高新技术零部件有限公司 | Hydroforming flexible seal device |
| CN104785603A (en) * | 2015-05-13 | 2015-07-22 | 宁波钜智自动化装备有限公司 | Separated-type plug for processing of internal high-pressure forming pipe fitting |
| CN104785603B (en) * | 2015-05-13 | 2018-07-27 | 宁波钜智自动化装备有限公司 | A kind of split type plug for the processing of internal high pressure forming pipe fitting |
| CN106853473B (en) * | 2016-12-06 | 2019-02-22 | 柳州科瑞科技有限公司 | A kind of zigzag push top for forming high pressure in pipe |
| CN106862360A (en) * | 2017-01-16 | 2017-06-20 | 柳州科瑞科技有限公司 | A kind of internal high pressure forming of embedded occlusion sealing structure is cut somebody's hair |
| CN109079019A (en) * | 2018-08-29 | 2018-12-25 | 河南兴迪锻压设备制造有限公司 | A kind of interior high pressure sealing push top |
| CN111365319A (en) * | 2020-03-26 | 2020-07-03 | 燕山大学 | Novel hydraulic cylinder for hydraulic bulging |
| CN111365319B (en) * | 2020-03-26 | 2021-02-26 | 燕山大学 | Novel hydraulic cylinder for hydraulic bulging |
| CN115255107A (en) * | 2022-07-05 | 2022-11-01 | 保隆(安徽)汽车配件有限公司 | Hydraulic forming sealing head and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
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| CX01 | Expiry of patent term |