CN103846332A - Intelligent inner high-pressure forming method suitable for different length tubes - Google Patents
Intelligent inner high-pressure forming method suitable for different length tubes Download PDFInfo
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- CN103846332A CN103846332A CN201410073985.0A CN201410073985A CN103846332A CN 103846332 A CN103846332 A CN 103846332A CN 201410073985 A CN201410073985 A CN 201410073985A CN 103846332 A CN103846332 A CN 103846332A
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Abstract
The invention discloses an intelligent inner high-pressure forming method suitable for different length tubes, belonging to the field of the inner high-pressure forming of tube products. The method comprises the following steps: firstly, installing a left displacement sensor and a right displacement sensor on a left pusher and a right pusher, and installing a left pressure sensor and a right pressure sensor respectively used for detecting the positions of the left pusher and the right pusher on oil inlet paths of a left side cylinder and a right side cylinder and the pressure of the left side cylinder and the right cylinder; when equipment is started, after an upper die and a lower die are conducted for die assembly, simultaneously advancing the left pusher and the right pusher, automatically taking the absolute displacements of the left pusher and the right pusher as displacement zeros through a computer control system, so as to perform the subsequent inner high-pressure forming, when the left pusher and the right pusher are respectively in contact with pipe orifices and the pressure of the left side cylinder and the right side cylinder reaches set pressure. The method has the advantages of improving the sealing effect in a forming preliminary stage, and guaranteeing the accuracy and reliability of a loaded path.
Description
Technical field
The invention belongs to forming high pressure in pipe technical field, particularly a kind of intelligent inside high-pressure forming method that adapts to different length pipe.
Background technology
Forming high pressure in pipe technology, that one is utilized high-pressure liquid medium pressurization bulging and axial feed feed supplement, the advanced manufacturing process of one that pipe laminating mold cavity is shaped, be one of a kind of manufacturing key technology of realizing pressure forming high efficiency, product lightweight, product precise treatment, be applied widely in the field such as automobile, Aeronautics and Astronautics.But because tubing error in length when the blanking cannot be avoided, when pipe length changes to some extent, tend to cause technological parameter inaccurate, or sealing is cut somebody's hair do not enter seal area, affect sealing effectiveness, then affect the quality of formed product.Therefore it is extremely urgent to adapt to the manufacturing process of different length pipe while finding a kind of internal high pressure forming.
The present invention, just in order to solve an above-mentioned difficult problem, provides a kind of manufacturing process of the intelligentized adaptation different length pipe for internal high pressure forming hydraulic press.
Summary of the invention
The object of the invention is to provide a kind of intelligent inside high-pressure forming method that adapts to different length pipe, while avoiding bringing pipe length to change due to drafting error, causes sealing effectiveness poor, the problem that technological parameter cannot accurately be implemented.
The present invention first, cut somebody's hair 5 on a left side, the right side cuts somebody's hair on 9 left dislocation sensor 1 is housed, right displacement transducer 12, on the oil-feed oil circuit of left side oil cylinder 3, right side cylinder 10, left pressure sensor 2, right pressure sensor 11 are housed, be respectively used to detect leftly cut somebody's hair 5, are cut somebody's hair in 9 position on the right side and the pressure of left side oil cylinder 3, right side cylinder 10; Work as device start, after patrix 6, counterdie 8 matched moulds, a left side cuts somebody's hair 5, cut somebody's hair in the right side 9 advances simultaneously, 9 touch respectively the mouth of pipe when cutting somebody's hair (5) in a left side, cuts somebody's hair in the right side, the pressure of left side oil cylinder 3, right side cylinder 10 arrives while setting (1T-10T) pressure, the absolute displacement that computer control system is cut somebody's hair a left side 5 automatically, cut somebody's hair 9 liang in the right side cuts somebody's hair now separately, as zero displacement point, is carried out forming high pressure in pipe subsequently then.
When machine startup, left, cut somebody's hair and advance simultaneously in the right side, cut somebody's hair and arrive first as example with a left side, cut somebody's hair and arrive first nozzle position time left side pressure raises when a left side, while being elevated to pressure sensor SP1 setting pressure, computerized control system is automatically using absolute displacement place of this place's displacement transducer as left side zero point, right side oil cylinder has been nozzle position subsequently, when pressure is elevated to pressure sensor SP2 setting pressure, computer system is automatically using absolute displacement place of this Bit Shift sensor as right side zero point, as both sides cylinder pressure SP1, SP2 reaches respectively after setting pressure, the load path that computer system is set during according to internal high pressure forming changes, complete corresponding actions.
The present invention has the following advantages:
1. the present invention can adapt to the internal high pressure forming technique of different length pipe.
2. the present invention has introduced the pressure control of left and right side cylinder on the basis of the pure displacement control of tradition, is that displacement and pressure jointly control pure displacement control break, guarantees that load path is to touch pipe and implement after left and right end cutting somebody's hair, and has strengthened the accuracy of technique.
3. the present invention has introduced the pressure control of left and right side cylinder on the basis of the pure displacement control of tradition, is that displacement and pressure jointly control pure displacement control break, ensures stability and the reliability of sealing, thereby has reduced percent defective.
In a word, the displacement control that the present invention cuts somebody's hair tradition, changes displacement into and pressure is controlled simultaneously, ensure that the enforcement of load path is to implement cutting somebody's hair after touching pipe end, can intelligently adapt to different pipe lengths, improve shaping initial stage sealing effectiveness, ensure that load path accurately and reliably.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of intelligent inside high-pressure forming method that adapts to different length pipe of the present invention.Wherein, left dislocation sensor 1, left pressure sensor 2, left side oil cylinder 3, highly pressurised liquid entrance 4, a left side cut somebody's hair 5, patrix 6, pipe 7, counterdie 8,, the right side cuts somebody's hair 9,, right side oil cylinder 10, right pressure sensor 11, right displacement transducer 12.
Fig. 2-Fig. 8 is the course of work schematic diagram of a kind of intelligent inside high-pressure forming method that adapts to different length pipe of the present invention.
Fig. 2 is home position.
Fig. 3 be patrix 6 under master cylinder pressure F effect with counterdie 8 matched moulds.
Fig. 4 is that a left side cuts somebody's hair 5 while arriving first nozzle position.
Fig. 5 is to cut somebody's hair and 9 be nozzle position in the right side
Fig. 6 is that highly pressurised liquid Pg injects pipe 7 inner chambers, and changes according to the load path of internal high pressure forming setting, completes corresponding actions.
Fig. 7 is that pipe 7 is fitted with patrix 6, counterdie 8 die cavities completely.
Fig. 8 is that rollback is to original position.
Detailed description of the invention
As shown in Figure 1, the structure of a kind of intelligent inside high-pressure forming method that adapts to different length pipe of the present invention comprises: left dislocation sensor 1, left pressure sensor 2, left side oil cylinder 3, highly pressurised liquid entrance 4, a left side cut somebody's hair 5, patrix 6, pipe 7, counterdie 8,, the right side cuts somebody's hair 9,, right side oil cylinder 10, right pressure sensor 11, right displacement transducer 12.
The concrete processing step of implementing following (as shown in Figure 2) when shaping:
1, home position, as shown in Figure 2.Patrix 6, counterdie 8 and a left side cut somebody's hair 5, the right side cuts somebody's hair 9 all in home position, and pipe is positioned over counterdie die cavity.
2, when work, first patrix 6 under master cylinder pressure F effect with counterdie 8 matched moulds, as shown in Figure 3; In the time that mold clamping force reaches given pressure, left side oil cylinder 3, right side oil cylinder 10 start respectively, promote respectively that a left side cuts somebody's hair 5,9 feedings are cut somebody's hair on the right side, cut somebody's hair and 5 arrive first as example with a left side, when a left side cuts somebody's hair 5 while arriving first nozzle position, as shown in Figure 4, oil cylinder 3 pressure SP1 in left side raise, in the time that left pressure sensor 2 detects that SP1 reaches setting pressure, computerized control system is automatically using absolute displacement place of left dislocation sensor 1 as left side zero point; Cut somebody's hair and 9 be nozzle position with rear right, as shown in Figure 5, oil cylinder 10 pressure SP2 in right side raise, and in the time detecting that to right pressure sensor 11 SP2 reaches setting pressure, computerized control system is automatically using absolute displacement place of right displacement transducer 12 as right side zero point; When both sides oil cylinder working-pressure SP1, SP2 reach respectively after setting pressure, highly pressurised liquid Pg injects pipe 7 inner chambers, and changes according to the load path of internal high pressure forming setting, completes corresponding actions, as shown in Figure 6; Until pipe 7 is complete and patrix 6, counterdie 8 die cavities are fitted, as Fig. 7.
3, be shaped while being over, first highly pressurised liquid Pg release, patrix 8 lifts subsequently, and a left side cuts somebody's hair 5 simultaneously, the right side cuts somebody's hair and 9 act on and retreat to next time original position at left side oil cylinder 3, right side oil cylinder 10.Take out part.
Claims (2)
1. an intelligent inside high-pressure forming method that adapts to different length pipe, it is characterized in that, first, cut somebody's hair on a left side (5), the right side cuts somebody's hair on (9) left dislocation sensor (1) is housed, right displacement transducer (12), on the oil-feed oil circuit of left side oil cylinder (3), right side cylinder (10), left pressure sensor (2), right pressure sensor (11) are housed, are respectively used to detect the pressure of the position that cutting somebody's hair (5) in a left side, cuts somebody's hair in the right side (9) and left side oil cylinder (3), right side cylinder (10); Work as device start, after patrix (6), counterdie (8) matched moulds, cut somebody's hair (5) in a left side, cutting somebody's hair in the right side, advance simultaneously (9), when cut somebody's hair (5) in a left side, cutting somebody's hair in the right side, (9) touch respectively the mouth of pipe, when the pressure of left side oil cylinder (3), right side cylinder (10) arrives 1T-10T pressure of setting, (9) two absolute displacements of cutting somebody's hair now separately that computer control system is cut somebody's hair a left side (5) automatically, cut somebody's hair in the right side, as zero displacement point, are carried out forming high pressure in pipe subsequently then.
2. method according to claim 1, it is characterized in that, when machine startup, left, cut somebody's hair and advance simultaneously in the right side, cut somebody's hair and arrive first nozzle position time left side pressure raises when a left side, while being elevated to pressure sensor SP1 setting pressure, computerized control system is automatically using absolute displacement place of this place's displacement transducer as left side zero point, right side oil cylinder has been nozzle position subsequently, when pressure is elevated to pressure sensor SP2 setting pressure, computer system is automatically using absolute displacement place of this Bit Shift sensor as right side zero point, as both sides cylinder pressure SP1, SP2 reaches respectively after setting pressure, the load path that computer system is set during according to internal high pressure forming changes, complete corresponding actions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073985.0A CN103846332B (en) | 2014-03-02 | 2014-03-02 | A kind of intellectuality adapts to the inside high-pressure forming method of different length pipe |
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| CN201410073985.0A CN103846332B (en) | 2014-03-02 | 2014-03-02 | A kind of intellectuality adapts to the inside high-pressure forming method of different length pipe |
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| CN103846332A true CN103846332A (en) | 2014-06-11 |
| CN103846332B CN103846332B (en) | 2015-11-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734495A (en) * | 2016-12-28 | 2017-05-31 | 柳州科瑞科技有限公司 | A kind of forming high pressure in pipe method of Varied clearance |
| CN107427891A (en) * | 2015-03-31 | 2017-12-01 | 住友重机械工业株式会社 | Shaped device |
| CN107442636A (en) * | 2017-09-06 | 2017-12-08 | 哈尔滨工业大学 | The corrugated removing method of curved surface member building mortion, formed parts and system |
| CN107584000A (en) * | 2017-10-17 | 2018-01-16 | 柳州北斗星液压科技有限公司 | A kind of more siphunculus formation systems and method |
| CN107900181A (en) * | 2017-12-07 | 2018-04-13 | 平湖爱驰威汽车零部件有限公司 | A kind of automobile tail pipe former and application method |
| CN109404371A (en) * | 2018-06-28 | 2019-03-01 | 吉林省正轩车架有限公司 | A kind of hydraulic system can be shortened interior high-pressure molding process cycle |
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| WO1998017415A1 (en) * | 1996-10-17 | 1998-04-30 | Hermann Bartels | Method and device for forming hollow profile metal workpieces |
| US20030204944A1 (en) * | 2002-05-06 | 2003-11-06 | Norek Richard S. | Forming gas turbine transition duct bodies without longitudinal welds |
| US20070101786A1 (en) * | 2005-11-10 | 2007-05-10 | Gm Global Technology Operations, Inc. | Method for tube forming |
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| EP2272601A1 (en) * | 2009-06-22 | 2011-01-12 | Benteler Automobiltechnik GmbH | Hydroforming method |
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2014
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| WO1998017415A1 (en) * | 1996-10-17 | 1998-04-30 | Hermann Bartels | Method and device for forming hollow profile metal workpieces |
| US20030204944A1 (en) * | 2002-05-06 | 2003-11-06 | Norek Richard S. | Forming gas turbine transition duct bodies without longitudinal welds |
| US20070101786A1 (en) * | 2005-11-10 | 2007-05-10 | Gm Global Technology Operations, Inc. | Method for tube forming |
| CN101259501A (en) * | 2008-04-18 | 2008-09-10 | 哈尔滨工业大学 | Tubular product internal high-pressure forming special-shaped cross section sealing method and sealing punch |
| EP2272601A1 (en) * | 2009-06-22 | 2011-01-12 | Benteler Automobiltechnik GmbH | Hydroforming method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107427891A (en) * | 2015-03-31 | 2017-12-01 | 住友重机械工业株式会社 | Shaped device |
| CN106734495A (en) * | 2016-12-28 | 2017-05-31 | 柳州科瑞科技有限公司 | A kind of forming high pressure in pipe method of Varied clearance |
| CN107442636A (en) * | 2017-09-06 | 2017-12-08 | 哈尔滨工业大学 | The corrugated removing method of curved surface member building mortion, formed parts and system |
| CN107442636B (en) * | 2017-09-06 | 2019-01-22 | 哈尔滨工业大学 | The corrugated removing method of curved surface member forming device, formed parts and system |
| CN107584000A (en) * | 2017-10-17 | 2018-01-16 | 柳州北斗星液压科技有限公司 | A kind of more siphunculus formation systems and method |
| CN107900181A (en) * | 2017-12-07 | 2018-04-13 | 平湖爱驰威汽车零部件有限公司 | A kind of automobile tail pipe former and application method |
| CN109404371A (en) * | 2018-06-28 | 2019-03-01 | 吉林省正轩车架有限公司 | A kind of hydraulic system can be shortened interior high-pressure molding process cycle |
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| CN103846332B (en) | 2015-11-18 |
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Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
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