CN204448967U - A kind of pipe fitting internal high pressure forming device - Google Patents
A kind of pipe fitting internal high pressure forming device Download PDFInfo
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- CN204448967U CN204448967U CN201520109397.8U CN201520109397U CN204448967U CN 204448967 U CN204448967 U CN 204448967U CN 201520109397 U CN201520109397 U CN 201520109397U CN 204448967 U CN204448967 U CN 204448967U
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- 239000007788 liquid Substances 0.000 abstract description 5
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
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- 238000005520 cutting process Methods 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 1
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Abstract
A kind of pipe fitting internal high pressure forming device, comprise and clamped oil cylinder, front lock pincers, mold, upper demoulding oil jar, bed die, bottom knockout oil cylinder, rear lock pincers, rear lock pincers oil cylinder etc. formed by left charging device, frame, lift cylinder, right charging device, lower platform, front lock, in the swollen forming process of liquid locks pincers can form self-locking with the contact surface of upper/lower die, without the need to other active force lock clamp just can with mould close contact; Along with forming pressure raises, lock is clamped the pipe fitting born and is offset by natural resiliency distortion to the huge plastic force of mould, because the elastic deformation of lock pincers is minimum, can ignore relative to the elastic deformation of mould, therefore upper/lower die forming process can not be separated, and ensure that pipe fitting forming quality.Whole process is locked without the need to mill type cylinder, greatly reduces formation system tonnage and energy consumption, and have structure simple, cost is low, and the stability of a system is good, is convenient to control, the advantages such as die life is long.
Description
Technical field
The utility model belongs to internal high pressure forming equipment field, particularly a kind of pipe fitting internal high pressure forming device.
Background technology
Current, along with Aeronautics and Astronautics, automobile and machinery industry to whole mechanism and light-weighted demand more and more higher, hydroforming technology is widely used, and becomes in industrial production the advanced forming technique of the one manufacturing the light body component in Complex Different Shape cross section gradually.Pipe fitting internal high pressure forming is by after upper and lower mould matched moulds, the shaping medium of certain pressure is filled with in mold cavity, simultaneously, an arranged on left and right sides blank tube material of cutting somebody's hair is sent to mold cavity from arranged on left and right sides, under the acting in conjunction of high-pressure forming medium with feed supplement of cutting somebody's hair, pipe is deformed to fit with mould, thus realize pipe fitting forming, as threeway, four-way etc.
Pipe mainly deforms under internal high pressure liquid effects, usually needs pressure in MPa up to a hundred in pipe inside, and according to the difference of pipe wall thickness and shaping form, the fluid pressure of needs is higher.In pipe forming process, the active force of highly pressurised liquid is delivered to dies cavity by tube wall, act on mold cavity up to ton up to ten thousand.In order to ensure the quality of pipe fitting forming, in forming process, upper/lower die can not separate.Therefore, traditional pipe internal high pressure forming device when mould matched moulds clamp force just for being greater than matched moulds drag required when part overcomes maximum working pressure (MWP), and this clamp force is a steady state value in whole forming process, ensure that whole forming process upper/lower die is not separated.The folding of usual mould and clamp force are realized by same oil cylinder, this just causes equipment pressurize requirement high, particularly bigbore pipe fitting forming, because the folding stroke of mould is larger, and the clamp force that locked mode needs is up to ton up to ten thousand, cause being on a grand scale of oil cylinder, particularly the bigbore internal high pressure forming part topping up time is long, device is relatively little at shaping starting stage mold clamping force, and traditional flowing apparatus whole process clamp force is unique all the time, and it is very large, cause the unnecessary wasting of resources, simultaneously, in forming process, clamp force acts directly on mould, easily there is deformation in mould, make pipe fitting quality and precision low, die life is short.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of pipe fitting internal high pressure forming device, it can not be separated by mould in the performance guarantee pipe fitting forming process of lock pincers own material, and create enough clamp forces, clamp force is produced without the need to large tank, enormously simplify the equipment of system, improve life-span and the pipe fitting forming quality of mould, have the advantages that locked mode is convenient, control is simple, cost is low.
To achieve these goals, the technical solution adopted in the utility model is: a kind of pipe fitting internal high pressure forming device, comprise frame 2 and lower platform 5, it is characterized in that, frame 2 is fixed on lower platform 5, lift cylinder 3 is fixed in frame 2, and be connected with mold 8, there is upper demoulding oil jar 9 mold 8 inside, the locking face of mold 8 is inclined-planes, below corresponding to mold 8 is provided with bed die 10, bed die 10 is fixed on lower platform 5, it is inner that bottom knockout oil cylinder 11 is positioned at bed die 10, the locking face of bed die 10 is inclined-planes, left charging device 1 is positioned at the left side of frame 2, and be fixed on lower platform 5, right charging device 4 is positioned on the right side of frame 2, and is fixed on lower platform 5, front lock pincers 12 are positioned at the front side of frame 2, and are connected with lower platform 5, and front lock pincers 12 can slide on lower platform 5, front lock pincers oil cylinder 13 is connected with front lock pincers 12, and is fixed on lower platform 5, rear lock pincers 7 are positioned at the rear side of frame 2, and are connected with lower platform 5, and rear lock pincers oil cylinder 6 is fixed on lower platform 5, and is connected with rear lock pincers 7, and rear lock pincers 7 can slide on lower platform 5, rear lock pincers oil cylinder 6 is connected with rear lock pincers 7, and is fixed on lower platform 5.
The tight locking face of described mold 8 is inclined-planes, and the angle on this inclined-plane is 2 ° to 8 °.
The tight locking face of described bed die 10 is inclined-planes, and the angle on this inclined-plane is 2 ° to 8 °.
The utility model beneficial effect:
Upper/lower die is tightly pinned by locks pincers by the utility model, in the whole forming process of pipe fitting, ensure that mould can not be separated, owing to overcoming the pressure of pipe fitting forming process to mould by the material property of locks pincers self, huge coupling mechanism force is produced without the need to mill type cylinder, not only enormously simplify building mortion, reduce power and the tonnage of system, and cost is low; Forming process mold-locked power and the pressure of pipe fitting to mould proportional, avoid whole process mould and bear very large coupling mechanism force, improve the life-span of mould; Significantly improve the quality of formation of parts; Because initiation pressure low pipe distortion feed supplement is abundant, material flowability strengthens, and Reducing thickness during bulging significantly reduces, and fatigue strength is high, good rigidly; And device simple and stable is good, be convenient to control.
Accompanying drawing explanation
Fig. 1 is initial configuration schematic diagram of the present utility model.
Fig. 2 is that compound pipe molding of the present utility model terminates structural representation.
Fig. 3 is mould and eave tile locking schematic diagram.
Fig. 4 is device top view.
Detailed description of the invention
Below in conjunction with accompanying drawing, structural principle of the present utility model and operation principle are described in further detail.
See figures.1.and.2, a kind of pipe fitting internal high pressure forming device, comprise frame 2 and lower platform 5, it is characterized in that, frame 2 is fixed on lower platform 5, and lift cylinder 3 is fixed in frame 2, and be connected with mold 8, effect due to lift cylinder 3 is promoted by mold 8, and its active force only need overcome the deadweight of mold 8, and therefore lift cylinder 3 quality model is relatively very little; Mold 8 inside is provided with demoulding oil jar 9, upper demoulding oil jar 9 makes formation of parts and mold 8 depart from after being shaped, prevent from shaping pipe fitting one piece being mentioned when mold 8 promotes because pipe distortion in forming process fits tightly with mold 8 causing shaping pipe fitting to drop damage, the locking face of mold 8 is inclined-planes, reaches self-locking when this inclined-plane can ensure mould and the locking of lock pincers; Below corresponding to mold 8 is provided with bed die 10, bed die 10 is fixed on lower platform 5, it is inner that bottom knockout oil cylinder 11 is positioned at bed die 10, the effect of bottom knockout oil cylinder 11 is that formation of parts and bed die 10 are departed from, be convenient to formation of parts take out, the locking face of bed die 10 is inclined-planes, reaches self-locking when this inclined-plane can ensure locking; Left charging device 1 is positioned at the left side of frame 2, is fixed on lower platform 5, and it can seal at pipe end face, prevents the leakage of forming process high-pressure medium, can also be filled with high-pressure medium simultaneously, pipe is formed to tube blank inner wall; Right charging device 4 is positioned on the right side of frame 2, and is fixed on lower platform 5; Front lock pincers 12 are positioned at the front side of frame 2, and are connected with lower platform 5, and front lock pincers 12 can slide on lower platform 5; Front lock pincers oil cylinder 13 is connected with front lock pincers 12, and is fixed on lower platform 5; Before can promoting, lock pincers 12 slide and then lock and unclamp mould, because pushing course only needs overcome friction, lock pincers oil cylinder 13 quality model in the past; The locking face of front lock pincers 12 has certain gradient, can self-locking when ensureing locking die; Rear lock pincers 7 are positioned at the rear side of frame 2, and are connected with lower platform 5, and rear lock pincers 7 can slide on lower platform 5; Rear lock pincers oil cylinder 6 is fixed on lower platform 5, and is connected with rear lock pincers 7, can promote rear lock pincers 7 and slides and then lock and unclamp mould, because pushing course only needs overcome friction, locks that to clamp oil cylinder 6 quality model relative very little later; The locking face of rear lock pincers 7 has certain gradient, can self-locking when ensureing locking die;
Operation principle of the present utility model is:
In pipe Internal High Pressure Forming, first pipe is put in bed die 10, lift cylinder 3 extends and mold 8 is declined, until mold 8 and bed die 10 are fitted, now pipe is completely enclosed within mold 8 and bed die 10 inside, then before before, lock pincers oil cylinder 13 extends promotion, lock pincers 12 move until front lock pincers 12 are locked on front side of upper/lower die, rear lock pincers oil cylinder 6 elongation simultaneously promotes rear lock pincers 7 and moves until rear pincers 7 of locking are locked on rear side of upper/lower die, as shown in Figure 4, due to front lock pincers 12, mold 8, the locking face of bed die 10 and rear lock pincers 7 is inclined-plane and can self-locking, locked in the past pincers oil cylinder 13 and rear lock clamp oil cylinder 6 in whole process all without the need to very large active force, only need overcome friction, once inside has active force just to form self-locking, can not oneself unclamp, then blank end contacts and forms conical surface seal by left charging device 1 and right charging device 4, and be filled with highly pressurised liquid to pipe inside, pipe forms under highly pressurised liquid effect, in order to make pipe fitting forming, s constantly raises, pipe fitting constantly increases the active force that upper/lower die produces, the plastic force that mold 8 and bed die 10 bear passes to front lock pincers 12 and rear lock pincers 7, lock is clamped the huge plastic force born and is offset by natural resiliency distortion, because the elastic deformation of lock pincers is minimum, can ignore relative to the elastic deformation of mould, therefore upper/lower die forming process can not be separated, due to locks pincers and the self-locking action of upper/lower die, upper/lower die can not be separated, ensure that forming process is carried out smoothly.During high-pressure forming, front lock pincers oil cylinder 13 and rear lock pincers oil cylinder 6 are without the need to active force, reduce energy consumption.After shaping, left charging device 1 and right charging device 4 carry out pressure release, front lock pincers 12 and rear lock pincers 7 are eliminated lock and are clamped the self-locking with mould under front lock clamps the effect of oil cylinder 13 and rear lock pincers oil cylinder 6, front lock pincers 12 and rear lock pincers 7 are made to return initial position, mould is now without coupling mechanism force, owing to may fit tightly with the inwall of mould at forming process pipe fitting generation moderate finite deformation, mold 8 is when lift cylinder 3 slowly promotes, the demoulding is carried out in upper demoulding oil jar 9 effect, can not damage formation of parts when ensureing mold 8 and bed die 10 separation process; Last bottom knockout oil cylinder 11 acts on, and formation of parts is separated with bed die 10, completes whole forming process.
Claims (3)
1. a pipe fitting internal high pressure forming device, comprise frame (2) and lower platform (5), it is characterized in that, frame (2) is fixed on lower platform (5), lift cylinder (3) is fixed in frame (2), and be connected with mold (8), there is upper demoulding oil jar (9) mold (8) inside, the locking face of mold (8) is an inclined-plane, below corresponding to mold (8) is provided with bed die (10), bed die (10) is fixed on lower platform (5), it is inner that bottom knockout oil cylinder (11) is positioned at bed die (10), the locking face of bed die (10) is an inclined-plane, left charging device (1) is positioned at the left side of frame (2), and be fixed on lower platform (5), right charging device (4) is positioned at frame (2) right side, and is fixed on lower platform (5), front lock pincers (12) is positioned at the front side of frame (2), and is connected with lower platform (5), and front lock pincers (12) can in the upper slip of lower platform (5), front lock pincers oil cylinder (13) clamps (12) be connected with front lock, and is fixed on lower platform (5), rear lock pincers (7) is positioned at the rear side of frame (2), and is connected with lower platform (5), and rear lock pincers oil cylinder (6) is fixed on lower platform (5), and clamps (7) be connected with rear lock, and rear lock clamps (7) can in lower platform (5) above slip, rear lock pincers oil cylinder (6) clamps (7) be connected with rear lock, and is fixed on lower platform (5).
2. a kind of pipe fitting internal high pressure forming device according to claim 1, is characterized in that, the tight locking face of described mold (8) is an inclined-plane, and the angle on this inclined-plane is 2 ° to 8 °.
3. a kind of pipe fitting internal high pressure forming device according to claim 1, is characterized in that, the tight locking face of described bed die (10) is an inclined-plane, and the angle on this inclined-plane is 2 ° to 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109397.8U CN204448967U (en) | 2015-02-14 | 2015-02-14 | A kind of pipe fitting internal high pressure forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109397.8U CN204448967U (en) | 2015-02-14 | 2015-02-14 | A kind of pipe fitting internal high pressure forming device |
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| Publication Number | Publication Date |
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| CN204448967U true CN204448967U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520109397.8U Expired - Fee Related CN204448967U (en) | 2015-02-14 | 2015-02-14 | A kind of pipe fitting internal high pressure forming device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607526A (en) * | 2015-02-14 | 2015-05-13 | 中国重型机械研究院股份公司 | Intra-pipe high pressure forming system |
| CN107921510A (en) * | 2015-08-27 | 2018-04-17 | 住友重机械工业株式会社 | Molding machine and forming method |
| CN108927437A (en) * | 2018-08-10 | 2018-12-04 | 安徽江淮汽车集团股份有限公司 | Molding die |
| CN112317593A (en) * | 2020-10-13 | 2021-02-05 | 内蒙古工业大学 | Pipe magnetic pulse impact forming device |
-
2015
- 2015-02-14 CN CN201520109397.8U patent/CN204448967U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607526A (en) * | 2015-02-14 | 2015-05-13 | 中国重型机械研究院股份公司 | Intra-pipe high pressure forming system |
| CN107921510A (en) * | 2015-08-27 | 2018-04-17 | 住友重机械工业株式会社 | Molding machine and forming method |
| CN107921510B (en) * | 2015-08-27 | 2019-03-15 | 住友重机械工业株式会社 | Molding machine and forming method |
| CN108927437A (en) * | 2018-08-10 | 2018-12-04 | 安徽江淮汽车集团股份有限公司 | Molding die |
| CN112317593A (en) * | 2020-10-13 | 2021-02-05 | 内蒙古工业大学 | Pipe magnetic pulse impact forming device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |