CN107262585A - A kind of symmetrical formula forming high pressure in pipe equipment - Google Patents
A kind of symmetrical formula forming high pressure in pipe equipment Download PDFInfo
- Publication number
- CN107262585A CN107262585A CN201710607681.1A CN201710607681A CN107262585A CN 107262585 A CN107262585 A CN 107262585A CN 201710607681 A CN201710607681 A CN 201710607681A CN 107262585 A CN107262585 A CN 107262585A
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- Prior art keywords
- pressure
- pipe
- hair
- thrust cylinder
- cut somebody
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/039—Means for controlling the clamping or opening of the moulds
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of symmetrical formula forming high pressure in pipe equipment, the internal high pressure forming equipment includes clamping pressure machine, pressure charging system, electric control system, mold, lower mould, oil pump, installs that a left side on the table is cut somebody's hair, the right side is cut somebody's hair, left thrust cylinder, right thrust cylinder；The internal high pressure forming equipment ensure that pressure release failure will not occur in forming process for the high pressure inside tubing, tubing is avoided in formation zone formation fold, the generation that tubing feed supplement when occurring rapid deformation produces the phenomenon of spalling not in time is it also avoid simultaneously, and the final realization for ensureing that tubing part is stable gradually shapes and shaped.
Description
Technical field
The invention belongs to forming high pressure in pipe technical field, in particular to a kind of symmetrical formula tubing inner high voltage into
Shape equipment.
Background technology
Forming high pressure in pipe principle is：After upper and lower mould matched moulds, cut somebody's hair seal simultaneously toward pipe tubing by left and right
Injection pressure forming medium in material, cut somebody's hair in left and right axial feed with realized under the collective effect of internal pressure tubing inner high voltage into
Shape.The part obtained by the manufacturing process has cost low, lightweight compared with conventional machining process, saves material, processing
Process is few, and forming quality is high, good mechanical property, the series of advantages such as stiffness and strength height.
The problem of existing forming high pressure in pipe equipment is present be：
It is by controlling left and right thrust cylinder or so to cut somebody's hair by force 1. existing forming high pressure in pipe equipment is when making part
Displacement processed carries out axial supplement, and such a enforceable mechanical feed profile of active is very difficult to match blank deformation patch contour forming
Process, easily causes feed supplement deficiency or feed supplement is excessive, it is difficult to rational control feed supplement amount, and control is got up more difficult；
2. by artificially setting feed supplement amount to control thrust cylinder displacement of cutting somebody's hair in left and right to carry out feed supplement to be also easy to produce feed supplement amount not enough,
Part is caused, because feed supplement is not enough, occur the phenomenon of spalling not in time, to cause the swollen type failure of high pressure during swollen type；
3. control of additive raw material sensitivity is not high, part is also easily caused in forming process because pipe internal pressure reaches that material is bent
Clothes point pipe occurs to cause after quick deformation the material at pipe end two is quick to be flowed into mold cavity, be also easy to produce mouth of pipe two ends from
Open left and right to cut somebody's hair, cause the highly pressurised liquid set up inside pipe to leak, it is impossible to ensure most basic internal high pressure
Molding condition；
4. feed supplement amount is excessive, it is easily caused part and the forming defects such as occurs corrugation, fold in formation zone, thickens, cause part
Swollen type failure.
The content of the invention
It is specially that one kind utilizes left and right present invention aims at a kind of symmetrical formula forming high pressure in pipe equipment is provided
Feed supplement is cut somebody's hair the forming high pressure in pipe equipment of fluid power Follow-up seal, to overcome the above-mentioned deficiency present in existing device technology.
The present invention is adopted the technical scheme that：
A kind of symmetrical formula forming high pressure in pipe equipment, the internal high pressure forming equipment includes clamping pressure machine, increased
Pressure system, electric control system, mold, lower mould, oil pump, install that a left side on the table is cut somebody's hair, the right side is cut somebody's hair, left thrust
Cylinder, right thrust cylinder；Wherein, mold is arranged on clamping pressure machine moved cross beam and passes through moved cross beam and lead and pressure
Owner's cylinder is connected, and left and right cut somebody's hair is connected with left and right thrust cylinder respectively, and crosshead displacement sensor is connected with lead, left and right
Hydraulic pressure sensor is connected with thrust cylinder, pressure charging system is connected with pressure sensor comprising booster, water pump, booster；
The crosshead displacement sensor, hydraulic pressure sensor, oil pump, pressure sensor and electric control system connection；It is described
Oil pump is connected with left and right thrust cylinder oil circuit；
The internal high pressure forming equipment is after clamping pressure machine matched moulds, by high-pressure medium under electric control system control
Pressurizeed by pressure charging system by the loading curve of setting, meanwhile, left and right cut somebody's hair is transported in the presence of thrust cylinder into mould
It is dynamic to form sealing until holding out against tubing two ends；In forming process, pressure charging system continues the loading curve by setting to tubing die cavity
High-pressure medium is squeezed into inside, and internally the lower pipe of the pressure effect of high-pressure medium deforms, and pipe two ends are on left and right cut somebody's hair
Reaction force reduce, the data feedback collected is returned electric control system by the hydraulic pressure sensor on left and right thrust cylinder,
Left and right cut somebody's hair of the guarantee on thrust cylinder of entering to give of electric control system control left and right thrust cylinder is servo-actuated in real time with pipe end
Sealing, it is ensured that pressure release will not occur in forming process and fail for high pressure inside tubing, it is to avoid tubing is formed in formation zone
Fold, while the generation that tubing feed supplement when occurring rapid deformation produces the phenomenon of spalling not in time is it also avoid, it is final to ensure
The stable realization of tubing part gradually shapes and shaped.
Present invention also offers a kind of symmetrical formula forming high pressure in pipe method, it is characterised in that using above-mentioned interior
High-pressure forming equipment, its specific steps include：
(1) matched moulds stage：Mold is locked on clamping pressure machine moved cross beam, lower mode locking on the table, left and right
Thrust cylinder and left and right, which are cut somebody's hair, is in original state, and ready pipe is put into lower mold cavity, clamping pressure owner's cylinder
Descending matched moulds；
(2) the fluid infusion sealing stage：While clamping pressure owner's cylinder descending matched moulds, crosshead displacement sensor sends signal,
Electric control system sends instruction, and the pipe inner chamber injection high-pressure medium of the water pump of pressure charging system into mould is to discharge in pipe
The air in portion, meanwhile, it is close until holding out against mouth of pipe two ends formation low pressure to the feeding of mouth of pipe two ends that left and right thrust cylinder promotes left and right to cut somebody's hair
Envelope, now, mouth of pipe two ends act on left and right cut somebody's hair on reaction force reach pre-set value；
(3) feed phase is shaped：This stage is under the conditions of mouth of pipe two ends formation low pressure seal is held out against, to pass through electrical control
System control pressure charging system control booster is pressurizeed by the loading curve of setting, internally under the pressure effect of high-pressure medium
Pipe is deformed, and increasingly presses close to dies cavity wall, and now the material at pipe two ends can be produced while pipe deforms
The raw trend flowed to pipe deformed area, reaction force of the pipe two ends on left and right cut somebody's hair reduces therewith, now, left and right to push away
Hydraulic pressure sensor on power cylinder changes the analog signal collected to electric control system, electrical control system by A/D
System sends the feeding of instruction control left and right thrust cylinder and is servo-actuated in real time with pipe end so as to ensure that the left and right being arranged on thrust cylinder is cut somebody's hair
Sealing, and causes left and right cut somebody's hair to push ahead by real-time Follow-up seal, realize the feed supplement of tube billet axial feed with it is final
Part pastes contour forming；
(4) stage is molded：After tubing part patch contour forming, electric control system control sends instruction, and booster is retracted, pipe
Material cavity pressure is reduced rapidly, and the hydraulic pressure sensor on left and right thrust cylinder is signaled to electric control system, electrically
Control system sends instruction, and left and right thrust cylinder retracts original state, and the up moved cross beam of forcing press master cylinder is moved upwards, takes out
Formed product.
Compared with existing forming high pressure in pipe equipment, the present invention has the advantages that：
1. due to the internal high pressure forming equipment for fluid power Follow-up seal of being cut somebody's hair in forming process using left and right feed supplement, utilize a left side
Right thrust cylinder hydraulic pressure sensor gathers reaction in the reaction force data message of left and right thrust cylinder, and left and right thrust cylinder is applied
The row passive feed supplement of control intelligence in real time, realize that left and right is cut somebody's hair Follow-up seal, and the high-pressure medium inside real-time ensuring pipe can be pressed
Hyperbaric environment is set up according to default loading curve.Primary high-pressure forming condition is ensured.
2. or so the cut somebody's hair internal high pressure forming equipment of fluid power Follow-up seal of feed supplement be that a kind of passive feeding follows sealing, left and right
Cut somebody's hair according to feed supplement amount required when being deformed upon in the presence of pipe internally high-pressure medium, carry out rational feed supplement in real time.
Avoid existing left and right and cut somebody's hair that feed supplement that forced displacement feed supplement easily causes is not enough or feed supplement is excessive and causes part spalling, part
The shaping failure that corrugation, part are thickened.
Brief description of the drawings
Fig. 1 is symmetrical formula forming high pressure in pipe device structure schematic diagram；
Fig. 2 is equipment matched moulds stage schematic diagram；
In figure：1st, clamping pressure machine；101st, forcing press master cylinder；102nd, moved cross beam；103rd, lead；104th, crosshead displacement
Sensor；2nd, pressure charging system；201st, booster；202nd, water pump；203rd, pressure sensor；3rd, electric control system；4th, left thrust
Cylinder；5th, right thrust cylinder；6th, mould；601st, mold；602nd, lower mould；7th, a left side is cut somebody's hair；8th, the right side is cut somebody's hair；9th, hydraulic pressure is sensed
Device；10th, oil pump；11st, pipe.
Embodiment
It is special to a kind of symmetrical formula forming high pressure in pipe equipment and technology of the present invention with reference to the accompanying drawings and examples
Levy and be further described.
A kind of symmetrical formula forming high pressure in pipe equipment, as shown in Figure 1-2, the internal high pressure forming equipment include closing
Molding pressure machine (1), pressure charging system (2), electric control system (3), mold (601), lower mould (602), oil pump (10), installation
A left side on the table is cut somebody's hair (7), the right side is cut somebody's hair (8), left thrust cylinder (4), right thrust cylinder (5)；Wherein, mold (601) is installed
On clamping pressure machine moved cross beam (102) and pass through moved cross beam (102) and lead (103) and forcing press master cylinder (101)
Connection, left and right cut somebody's hair is connected with left and right thrust cylinder respectively, and crosshead displacement sensor (104) is connected with lead (103),
Hydraulic pressure sensor (9) is connected with left and right thrust cylinder, pressure charging system (2) includes booster (201), water pump (202), increasing
Depressor is connected with pressure sensor (203)；The crosshead displacement sensor (103), hydraulic pressure sensor (9), oil pump (10),
Pressure sensor (203) and electric control system (3) connection；The oil pump (10) is connected with left and right thrust cylinder oil circuit；
The present embodiment additionally provides the method that symmetrical formula tubing is produced using the said equipment, and its specific steps includes：
(1) matched moulds stage：Mold is locked on clamping pressure machine moved cross beam, lower mode locking on the table, left and right
Thrust cylinder and left and right, which are cut somebody's hair, is in original state, and ready pipe is put into lower mold cavity, clamping pressure owner's cylinder
Descending matched moulds；
(2) the fluid infusion sealing stage：While clamping pressure owner's cylinder descending matched moulds, crosshead displacement sensor sends signal,
Electric control system sends instruction, and the pipe inner chamber injection high-pressure medium of the water pump of pressure charging system into mould is to discharge in pipe
The air in portion, meanwhile, it is close until holding out against mouth of pipe two ends formation low pressure to the feeding of mouth of pipe two ends that left and right thrust cylinder promotes left and right to cut somebody's hair
Envelope, now, mouth of pipe two ends act on left and right cut somebody's hair on reaction force reach pre-set value；
(3) feed phase is shaped：This stage is under the conditions of mouth of pipe two ends formation low pressure seal is held out against, to pass through electrical control
System control pressure charging system control booster is pressurizeed by the loading curve of setting, internally under the pressure effect of high-pressure medium
Pipe is deformed, and increasingly presses close to dies cavity wall, and now the material at pipe two ends can be produced while pipe deforms
The raw trend flowed to pipe deformed area, reaction force of the pipe two ends on left and right cut somebody's hair reduces therewith, now, left and right to push away
Hydraulic pressure sensor on power cylinder changes the analog signal collected to electric control system, electrical control system by A/D
System sends the feeding of instruction control left and right thrust cylinder and is servo-actuated in real time with pipe end so as to ensure that the left and right being arranged on thrust cylinder is cut somebody's hair
Sealing, and causes left and right cut somebody's hair to push ahead by real-time Follow-up seal, realize the feed supplement of tube billet axial feed with it is final
Part pastes contour forming；
(4) stage is molded：After tubing part patch contour forming, electric control system control sends instruction, and booster is retracted, pipe
Material cavity pressure is reduced rapidly, and the hydraulic pressure sensor on left and right thrust cylinder is signaled to electric control system, electrically
Control system sends instruction, and left and right thrust cylinder retracts original state, and the up moved cross beam of forcing press master cylinder is moved upwards, takes out
Formed product.
Claims (2)
1. a kind of symmetrical formula forming high pressure in pipe equipment, it is characterised in that the internal high pressure forming equipment includes matched moulds pressure
Power machine (1), pressure charging system (2), electric control system (3), mold (601), lower mould (602), oil pump (10), installed in work
Make that the left side on platform is cut somebody's hair (7), the right side is cut somebody's hair (8), left thrust cylinder (4), right thrust cylinder (5)；Wherein, mold (601), which is arranged on, closes
It is connected on molding pressure machine moved cross beam (102) and by moved cross beam (102) and lead (103) with forcing press master cylinder (101),
Left and right cut somebody's hair is connected with left and right thrust cylinder respectively, and moved cross beam (102) one end is connected with crosshead displacement sensor (104), left
Hydraulic pressure sensor (9) is connected with right thrust cylinder, pressure charging system (2) includes booster (201), water pump (202), booster
It is connected with pressure sensor (203)；The crosshead displacement sensor (103), hydraulic pressure sensor (9), oil pump (10), pressure
Sensor (203) and electric control system (3) connection；The oil pump (10) is connected with left and right thrust cylinder oil circuit；
The internal high pressure forming equipment is after clamping pressure machine matched moulds, to pass through high-pressure medium under electric control system control
Pressure charging system is pressurizeed by the loading curve of setting, meanwhile, left and right cut somebody's hair is moved directly in the presence of thrust cylinder into mould
Sealing is formed to tubing two ends are held out against；In forming process, pressure charging system continues the loading curve by setting to inside tubing die cavity
High-pressure medium is squeezed into, internally the lower pipe of the pressure effect of high-pressure medium deforms, and pipe embryo two ends are anti-on left and right cut somebody's hair
Active force reduces, and the data feedback collected is returned electric control system by the hydraulic pressure sensor on left and right thrust cylinder, electrically
Control system control left and right thrust cylinder enter give ensure be arranged on thrust cylinder on it is left and right cut somebody's hair be servo-actuated in real time with pipe end it is close
Envelope, it is ensured that pressure release failure will not occur in forming process for high pressure inside tubing, it is to avoid tubing forms pleat in formation zone
Wrinkle, while the generation that tubing feed supplement when occurring rapid deformation produces the phenomenon of spalling not in time is it also avoid, it is final to ensure pipe
The stable realization of material part gradually shapes and shaped.
2. a kind of symmetrical formula forming high pressure in pipe method, it is characterised in that using the equipment described in claim 1, it has
Body step includes：
(1) matched moulds stage：Mold is locked on clamping pressure machine moved cross beam, lower mode locking on the table, left and right thrust
Cylinder and left and right, which are cut somebody's hair, is in original state, and ready pipe is put into lower mold cavity, and clamping pressure owner's cylinder is descending
Matched moulds；
(2) the fluid infusion sealing stage：While clamping pressure owner's cylinder descending matched moulds, crosshead displacement sensor sends signal, electrically
Control system sends instruction, and the pipe inner chamber injection high-pressure medium of the water pump of pressure charging system into mould is to discharge inside pipe
Air, meanwhile, left and right thrust cylinder promotes left and right to cut somebody's hair to the feeding of mouth of pipe two ends until holding out against mouth of pipe two ends formation low pressure seal,
Now, mouth of pipe two ends act on left and right cut somebody's hair on reaction force reach pre-set value；
(3) feed phase is shaped：This stage is under the conditions of mouth of pipe two ends formation low pressure seal is held out against, to pass through electric control system
Control pressure charging system control booster is pressurizeed by the loading curve of setting, internally the lower pipe of the pressure effect of high-pressure medium
Deform, increasingly press close to dies cavity wall, now the material at pipe two ends can be produced while pipe deforms to
The trend of pipe deformed area flowing, reaction force of the pipe two ends on left and right cut somebody's hair reduces therewith, now, left and right thrust cylinder
On hydraulic pressure sensor the analog signal collected is changed to electric control system by A/D, electric control system hair
Go out the feeding of instruction control left and right thrust cylinder so as to ensure that the left and right being arranged on thrust cylinder is cut somebody's hair and the real-time Follow-up seal of pipe end,
And by real-time Follow-up seal left and right cut somebody's hair is pushed ahead, realize the feed supplement of tube billet axial feed and final part
Paste contour forming；
(4) stage is molded：After tubing part patch contour forming, electric control system control sends instruction, and booster is retracted, tubing type
Cavity pressure is reduced rapidly, and the hydraulic pressure sensor on left and right thrust cylinder is signaled to electric control system, electrical control
System sends instruction, and left and right thrust cylinder retracts original state, and the up moved cross beam of forcing press master cylinder is moved upwards, takes out shaping
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607681.1A CN107262585A (en) | 2017-07-24 | 2017-07-24 | A kind of symmetrical formula forming high pressure in pipe equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607681.1A CN107262585A (en) | 2017-07-24 | 2017-07-24 | A kind of symmetrical formula forming high pressure in pipe equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107262585A true CN107262585A (en) | 2017-10-20 |
Family
ID=60077994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710607681.1A Pending CN107262585A (en) | 2017-07-24 | 2017-07-24 | A kind of symmetrical formula forming high pressure in pipe equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326107A (en) * | 2017-12-31 | 2018-07-27 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
| CN109821959A (en) * | 2019-02-14 | 2019-05-31 | 佛山市南海兴迪机械制造有限公司 | A kind of push top for high-pressure molding technique in Large Diameter Pipeline |
| CN111715765A (en) * | 2020-06-15 | 2020-09-29 | 大连理工大学 | Quick internal pressure bulging equipment for pipes |
| CN112935060A (en) * | 2021-01-25 | 2021-06-11 | 广东思豪内高压科技有限公司 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
| CN113500129A (en) * | 2021-07-19 | 2021-10-15 | 广东劦力智能科技有限公司 | High-pressure one-step forming machine in tubular product |
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| CN1471444A (en) * | 2000-10-19 | 2004-01-28 | ����˹���ʹ�˾ | Apparatus and method for hydroforming a tubular part |
| DE102004015121B3 (en) * | 2004-03-27 | 2005-10-27 | Daimlerchrysler Ag | hydroforming |
| CN201304440Y (en) * | 2008-12-05 | 2009-09-09 | 佛山市康思达液压机械有限公司 | A pipe liquid-filling forming mould frame structure |
| CN104384289A (en) * | 2014-12-08 | 2015-03-04 | 哈尔滨工业大学 | Large-tonnage short-stroke inner high pressure forming machine |
| CN105598265A (en) * | 2015-12-21 | 2016-05-25 | 哈尔滨奔马科技有限公司 | Overall forming method of small-relative-bending-radius and large-diameter-thickness-ratio thin-walled bent pipe fitting |
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| CN1471444A (en) * | 2000-10-19 | 2004-01-28 | ����˹���ʹ�˾ | Apparatus and method for hydroforming a tubular part |
| DE102004015121B3 (en) * | 2004-03-27 | 2005-10-27 | Daimlerchrysler Ag | hydroforming |
| CN201304440Y (en) * | 2008-12-05 | 2009-09-09 | 佛山市康思达液压机械有限公司 | A pipe liquid-filling forming mould frame structure |
| CN104384289A (en) * | 2014-12-08 | 2015-03-04 | 哈尔滨工业大学 | Large-tonnage short-stroke inner high pressure forming machine |
| CN105598265A (en) * | 2015-12-21 | 2016-05-25 | 哈尔滨奔马科技有限公司 | Overall forming method of small-relative-bending-radius and large-diameter-thickness-ratio thin-walled bent pipe fitting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326107A (en) * | 2017-12-31 | 2018-07-27 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
| CN108326107B (en) * | 2017-12-31 | 2019-10-29 | 潍坊倍力汽车零部件有限公司 | Without liquid-filled shape tube hydraulic forming method and device |
| CN109821959A (en) * | 2019-02-14 | 2019-05-31 | 佛山市南海兴迪机械制造有限公司 | A kind of push top for high-pressure molding technique in Large Diameter Pipeline |
| CN111715765A (en) * | 2020-06-15 | 2020-09-29 | 大连理工大学 | Quick internal pressure bulging equipment for pipes |
| CN112935060A (en) * | 2021-01-25 | 2021-06-11 | 广东思豪内高压科技有限公司 | Internal high-pressure forming device for stainless steel pipe fitting and control system thereof |
| CN113500129A (en) * | 2021-07-19 | 2021-10-15 | 广东劦力智能科技有限公司 | High-pressure one-step forming machine in tubular product |
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Application publication date: 20171020 |