CN2212463Y - Expanding hydraulic press - Google Patents
Expanding hydraulic press Download PDFInfo
- Publication number
- CN2212463Y CN2212463Y CN 94219318 CN94219318U CN2212463Y CN 2212463 Y CN2212463 Y CN 2212463Y CN 94219318 CN94219318 CN 94219318 CN 94219318 U CN94219318 U CN 94219318U CN 2212463 Y CN2212463 Y CN 2212463Y
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- hydraulic
- cylinder
- axial passage
- expanding
- pipe
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- Expired - Fee Related
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Abstract
The utility model relates to an expanding hydraulic press, which is shaped through the implement of a metal tube joint by the hydraulic pressure. Four hydraulic cylinders which distributed in a cross shape are arranged on a frame type main body, wherein, the vertical cylinder arranged on the top of the main body is used for the lifting of an upper mold and the exertion of the mold clamping force, an ejecting cylinder used for the demould is opposite to the vertical cylinder, and two horizontal plunger cylinders arranged on both sides of the main body are used for plugging the ports of the expanding tube blank. A perforated axial passage is arranged on the plungers of the horizontal plunger cylinder, and the axial passage is communicated with a high pressure oil passage through an expansion tube. The high pressure oil liquid can be filled into the inner cavity of the tube blank through the axial passage, and the expanding press forming can be in implementation.
Description
The utility model belongs to the forming without stock removel equipment of metal tube, is a kind of bulging hydraulic press that is mainly used in the pipe joint moulding.
Metallic pipe coupling in the past, particularly three-way connection mainly adopt casting, and not only voltage endurance capability is lower, and the metal that is consumed is also more.Along with the development of petrochemical industry, also more and more higher to the requirement of withstand voltage of pipe joint.In recent years, people bring into use the method for bulging to make pipe joint.Chinese patent CN1046107A discloses a kind of pipe joint swelling pressure moulding process.It is that pipe is put into a die cavity, again polyamine fat elastomeric material is put into pipe, on ordinary press polyamine fat rubber is exerted pressure then, forces the pipe distortion.Obviously, the efficient of this moulding process is lower, operates cumbersomely, and bulging power is limited, is difficult to make the heavy caliber high-pressure pipe connector.
The purpose of this utility model provides a kind of manufacturing high-pressure pipe connector that is exclusively used in, and particularly makes the bulging hydraulic press of high-pressure three-way pipe joint.
The solution that realizes the utility model purpose is: the bulging hydraulic press that is provided has a frame-type body.Top and bottom at body are respectively equipped with a vertical hydraulic cylinder and hydraulic pressure liftout tank; Respectively be provided with a horizontal columns plug cylinder in the both sides of body.Above-mentioned four hydraulic cylinders are crossing distribution, and wherein the plunger of horizontal columns plug cylinder is provided with an axial passage that connects this plunger, this axial passage by one relatively the telescoping tube of this passage slip communicate with the external high pressure oil feed line.During work, pipe is placed in the counterdie, the vertical hydraulic cylinder of primer fluid press closes up upper and lower mould.Start two horizontal columns plug cylinders then, the two-port of pipe is blocked.At this moment, high-voltage oil liquid charges in the pipe by the inside axial passage of horizontal plug cylinder plug, and pipe is bulging under the effect of high-voltage oil liquid and horizontal plug, till its profile and die cavity adapt.
For the bigger pipe of some deflection, strain hardening is bigger in the bulging process.For this reason, can otherly on the telescoping tube oil feed line of horizontal plug axial passage connect a booster pump,, improve bulging pressure, make the smooth moulding of pipe so that in the further supercharging of bulging later stage.
The utility model adopts hydraulic expanding-forming, so the suffered swelling pressure power of pipe is even.Compare with aforesaid prior art, bulging pressure of the present utility model is much higher, and is easy to control, realizes the production automation easily.The utility model is specially adapted to the processing and forming of heavy caliber high-pressure three-way pipe joint.
Below in conjunction with accompanying drawing content of the present utility model is illustrated.
Fig. 1 is overall structure figure of the present utility model.
Fig. 2 is the horizontal plug axial passage of Fig. 1 and the syndeton sketch of telescoping tube.
Fig. 3 is swelling pressure forming principle figure of the present utility model.
Fig. 4 is a hydraulic scheme of the present utility model.
As shown in Figure 1: the body 1 of hydraulic press is to be welded into a square frame shape with steel plate.The vertical hydraulic cylinder 2 of bodies top adopts plunger case, and its both sides are provided with piston cylinder 3, and they form differential circuit, and are connected as a single entity by slide block 4.Can improve opening speed guaranteeing have under the enough big pressure like this.On the piece sliding 4 patrix 5 is housed.Liftout tank 6 is equipped with in the bottom of body 1.The both sides of body 1 respectively are provided with a horizontal columns plug cylinder 7, and the piston cylinder 8 of it and both sides is formed differential circuits.Plunger 9 front ends of horizontal columns plug cylinder 7 are equipped with punch die 10, and it can stretch in the die cavity, play sealing and push the pipe port.Horizontal plug 9 has an axial passage 11, and the one end communicates with the axial hole of punch die 10, and the other end communicates with telescoping tube 12.One end of telescoping tube 12 is connected on the connecting plate 13, and communicates with high-pressure oil passage 15; The other end inserts in the axial passage 11 of horizontal plug 9, potted component 14(is housed referring to Fig. 2 between the two) when horizontal plug 9 motions, telescoping tube 12 is also motionless, but the axial passage 11 of plunger 9 slides relatively.High-voltage oil liquid charges into the pipe inner chamber by telescoping tube 12, horizontal plug passage 11 and punch die 10 during bulging.
Bulging process of the present utility model is as shown in Figure 3: (a) pipe 16 is placed on the counterdie 17.(b) start the vertical hydraulic cylinder, patrix 5 is descended, close up with counterdie 17.Horizontal plug drives punch die 10 and advances then, and pipe 16 shutoff in die cavity, and are charged into high-voltage oil liquid in pipe 16, makes its distortion.(c) vertical hydraulic cylinder and horizontal columns plug cylinder return, liftout tank 6 ejects counterdie 17 with the pipe joint after the moulding 18.
Fig. 4 has provided hydraulic scheme of the present utility model.Native system is provided with four hydraulic pumps.Wherein pump 19 is as the power source of vertical hydraulic cylinder 2 and piston cylinder 3; Pump 20 is as the power source of horizontal columns plug cylinder 7 and piston cylinder 8; Pump 21 is used for supplying with to pipe the high-voltage oil liquid of bulging; Pump 22 is as the power source of liftout tank 6 and piston type booster pump 23.
Claims (2)
1, bulging hydraulic press, it is characterized in that having a frame-type body (1), top and bottom at body (1) are respectively equipped with a vertical hydraulic cylinder (2) and hydraulic pressure liftout tank (6), respectively be provided with a horizontal columns plug cylinder (7) in the both sides of body (1), above-mentioned four hydraulic cylinders are crossing distribution, wherein the plunger of horizontal columns plug cylinder (9) is provided with an axial passage (11) that connects this plunger, this axial passage (11) by one relatively the telescoping tube (12) of this passage slip communicate with the external high pressure oil feed line.
2, hydraulic press as claimed in claim 1 is characterized in that the also other booster pump (23) that connects on the oil feed line of described telescoping tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219318 CN2212463Y (en) | 1994-08-26 | 1994-08-26 | Expanding hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219318 CN2212463Y (en) | 1994-08-26 | 1994-08-26 | Expanding hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212463Y true CN2212463Y (en) | 1995-11-15 |
Family
ID=33834219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94219318 Expired - Fee Related CN2212463Y (en) | 1994-08-26 | 1994-08-26 | Expanding hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212463Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438409A (en) * | 2015-01-07 | 2015-03-25 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN107537909A (en) * | 2017-09-24 | 2018-01-05 | 江苏双嘉液压机械制造有限公司 | A kind of more ripple forming machines of fillet square wave |
| CN113617918A (en) * | 2021-08-06 | 2021-11-09 | 山东盛润汽车有限公司 | Liquid tank bulging forming principle and process |
-
1994
- 1994-08-26 CN CN 94219318 patent/CN2212463Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438409A (en) * | 2015-01-07 | 2015-03-25 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN104438409B (en) * | 2015-01-07 | 2017-02-22 | 营口昌信管业制造有限公司 | Pipe fitting cold extruding forming machine and forming technology thereof |
| CN107537909A (en) * | 2017-09-24 | 2018-01-05 | 江苏双嘉液压机械制造有限公司 | A kind of more ripple forming machines of fillet square wave |
| CN113617918A (en) * | 2021-08-06 | 2021-11-09 | 山东盛润汽车有限公司 | Liquid tank bulging forming principle and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |