CN205763202U - Tubing hydraulic expanding type piston type seals and cuts somebody's hair - Google Patents
Tubing hydraulic expanding type piston type seals and cuts somebody's hair Download PDFInfo
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- CN205763202U CN205763202U CN201620487415.0U CN201620487415U CN205763202U CN 205763202 U CN205763202 U CN 205763202U CN 201620487415 U CN201620487415 U CN 201620487415U CN 205763202 U CN205763202 U CN 205763202U
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- hair
- hydraulic expanding
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- tubing
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Abstract
A kind of tubing hydraulic expanding type piston type seals and cuts somebody's hair, it is characterised in that is provided with to connect and draws place, 2 support rings and 1 lattice sealing the drift position cut somebody's hair and enclose, described in meet the place of drawing be that drift front portion is processed into circular cone structure, its gradient is between 20 °～30 °.Advantage is, simple in construction, and technology difficulty is low, has both been possible to prevent the generation of the defects such as pipe fold, crimping, even if not leaking when can guarantee that again and bear hyperpressure bulging and the most safe and reliable for thin-walled and thick-wall tube, has use value very much.
Description
Technical field
The utility model relates to hydraulic expanding type technology, be specially a kind of tubing hydraulic expanding type piston type sealing and cut somebody's hair.
Background technology
Tubing hydraulic expanding type technology is also known as Hydraulic shaping technology, at present, it is a high-tech technology in China's hydraulic expanding type technology, its forming technology is advanced, but process procedure is more, therefore must strictly control, especially in end sealing and the control of bulging pressure, the efficiency of production and the quality of product can be directly influenced.Its specific implementation: be first to have the die cavity for component shaping in the middle part of mould, workpiece blank is as in lower mold horizontal semi-circular hole, the after-applied enough mold clamping forces of Ccope closing machine, left and right cut somebody's hair to simultaneously advance withstand on pipe end, and apply suitable pre-thrust, now pipe material inner wall and end face of cutting somebody's hair form one and close space.Swollen type emulsion is introduced workpiece lumen by mouth of cutting somebody's hair, filling process is i.e. stopped after being full of emulsion in workpiece, high pressure it is filled with again in workpiece, meanwhile, two cut somebody's hair synchronizes inwardly to extrude propelling, due to the intrinsic pressure and common effect of axial force, workpiece shapes to die profile, two cut somebody's hair put in place after, cutting somebody's hair to recall bleeds off emulsion, mold lift taking-up Forming Workpiece.
The most common sealing is cut somebody's hair and is often produced as flat envelope formula, ring-type point sword formula and frustum type, when cutting somebody's hair sealed tube for using flat envelope formula to seal, tubing both ends stress at first and by big in the middle part of force rate tubing, so threeway both ends easily produce the defects such as ring-type concavo-convex, groove and crimping and cause leakage of oil, particularly with heavy gauge tube material more very.And use ring-type point sword formula to seal and cut somebody's hair when sealing thin-walled pipe (δ=1～3mm) because the ovality deviation of tubing and mould, cut somebody's hair, the existence of the normal process deviation of point sword, therefore it is difficult to ensure that whole point sword is inserted in tubing.When cutting somebody's hair sealing finally for using frustum type to seal; in the case of thick-walled pipe or small-sized specification tee pipe fitting need hyperpressure bulging (pressure is up to 200MPa); this seals and the most usually there will be oil leakage phenomenon, and therefore, the most existing all kinds of sealings are cut somebody's hair all in place of Shortcomings.
Summary of the invention
The purpose of this utility model is, solves above-mentioned existing existing problem, it is provided that a kind of effectively sealing, and the tubing hydraulic expanding type piston type sealing of leakage of oil will not be occurred to cut somebody's hair.
This utility model is achieved in that and is provided with to connect and draws place, 2 support rings and 1 lattice and enclose sealing the drift position cut somebody's hair, described in meet the place of drawing be that drift front portion is processed into circular cone structure, its gradient is between 20 °～30 °.
The utility model has the advantages that, it meets the place of drawing is a frustum of a cone, is used for connecing skirt base, is allowed to be easier to be clipped in sealing and cuts somebody's hair and between mould；
Its support ring is positioned at drift position, material is politef and copper powder compounded, there is corrosion resistance, resistant of high or low temperature, self lubricity, insulating properties and surface non-stick and life-span length, be difficult to aging, the support to tubing and guiding can be specifically designed in hydraulic expanding type field；
Its lattice enclose between 2 support rings, play the effect sealing shape chamber.This programme combines specific works situation, must enclose by optional holes lattice, wherein its sealing ring material is filled polytetrafluoroethylene F-PTFE, O material is nitrile rubber NBR or fluorubber FKM, the feature that it has simple in construction, frictional force is little, static seal performance is good, even if also can use safely in the medium have dirt, so lattice enclose working condition strong adaptability, and it is specially adapted for the sealing to various hydraulic oil；
This programme combines the advantage that the most existing sealing is cut somebody's hair, simple in construction, technology difficulty is low, and have passed through practice test, fully demonstrate this programme and be both possible to prevent the generation of the defects such as pipe fold, crimping, even if not leaking when can guarantee that again and bear hyperpressure bulging and the most safe and reliable for thin-walled and thick-wall tube, have use value very much.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is operating diagram；
Fig. 4 is enlarged drawing at the B of Fig. 3.
Detailed description of the invention
Describe in detail below in conjunction with the accompanying drawings: as shown in the figure, seal cut somebody's hair 2 drift position be provided with to connect and draw place 7 and two support rings 5 are installed and 1 lattice encloses 6, described connecing that to draw place 7 be that drift front portion is processed into circular cone structure, its gradient is between 20 °～30 °.
During use, by mold 1, seal cut somebody's hair 2, tubing 3, lower mold 4 fit together.When sealing pipe end, the drift position that this sealings is cut somebody's hair is inserted in tubing, concrete elder generation by rush procephalic connect to draw connect skirt material, and then tubing is supported and guides by support ring, sealed by Ge Laiquan again, finally make tubing be clipped in and cut somebody's hair and between mould, make sealingly secure reliable.
Claims (1)
1. a tubing hydraulic expanding type piston type seals and cuts somebody's hair, it is characterized in that, be provided with to connect and draw place, 2 support rings and 1 lattice sealing the drift position cut somebody's hair and enclose, described in meet the place of drawing be that drift front portion is processed into circular cone structure, its gradient is between 20 °～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487415.0U CN205763202U (en) | 2016-05-26 | 2016-05-26 | Tubing hydraulic expanding type piston type seals and cuts somebody's hair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487415.0U CN205763202U (en) | 2016-05-26 | 2016-05-26 | Tubing hydraulic expanding type piston type seals and cuts somebody's hair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205763202U true CN205763202U (en) | 2016-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620487415.0U Expired - Fee Related CN205763202U (en) | 2016-05-26 | 2016-05-26 | Tubing hydraulic expanding type piston type seals and cuts somebody's hair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205763202U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326108A (en) * | 2018-02-07 | 2018-07-27 | 南昌航空大学 | A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming |
| CN111014416A (en) * | 2019-12-26 | 2020-04-17 | 哈尔滨工大海卓智能成形科技有限公司 | Internal and external constraint type pipe liquid filling pressing sealing device and method |
| CN111438253A (en) * | 2020-04-14 | 2020-07-24 | 沈阳明日航材设备技术有限公司 | High pressure former in tubular product |
| CN113231526A (en) * | 2021-05-28 | 2021-08-10 | 威海盈创金属成形科技有限公司 | Internal pressure automatic forming device and method for large-diameter cylindrical part |
-
2016
- 2016-05-26 CN CN201620487415.0U patent/CN205763202U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326108A (en) * | 2018-02-07 | 2018-07-27 | 南昌航空大学 | A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming |
| CN108326108B (en) * | 2018-02-07 | 2019-06-11 | 南昌航空大学 | A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming |
| CN111014416A (en) * | 2019-12-26 | 2020-04-17 | 哈尔滨工大海卓智能成形科技有限公司 | Internal and external constraint type pipe liquid filling pressing sealing device and method |
| CN111014416B (en) * | 2019-12-26 | 2021-05-11 | 哈尔滨工大海卓智能成形科技有限公司 | Internal and external constraint type pipe liquid filling pressing sealing device |
| CN111438253A (en) * | 2020-04-14 | 2020-07-24 | 沈阳明日航材设备技术有限公司 | High pressure former in tubular product |
| CN113231526A (en) * | 2021-05-28 | 2021-08-10 | 威海盈创金属成形科技有限公司 | Internal pressure automatic forming device and method for large-diameter cylindrical part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161207 Termination date: 20170526 |