CN107442636A - The corrugated removing method of curved surface member building mortion, formed parts and system - Google Patents
The corrugated removing method of curved surface member building mortion, formed parts and system Download PDFInfo
- Publication number
- CN107442636A CN107442636A CN201710793779.0A CN201710793779A CN107442636A CN 107442636 A CN107442636 A CN 107442636A CN 201710793779 A CN201710793779 A CN 201710793779A CN 107442636 A CN107442636 A CN 107442636A
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- medium
- punch
- pin
- pressure
- curved surface
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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
- B21D26/021—Deforming sheet bodies
- B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Abstract
The invention discloses a kind of curved surface member building mortion, the corrugated removing method of formed parts and system, and multiple displacement transducers are set inside punch-pin, and the curved surface that the contact of multiple displacement transducers is formed overlaps with the surface of punch-pin；The shift value that controller gathers according to displacement transducer, whether each point of same ring is consistent with punch-pin distance in on-line checking plate members forming process, and according to the displacement on-line tuning of feedback backwards to pressure, local corrugation of the ultra-thin-wall heavy-gauge sheeting component during hydro-mechanical drawing is eliminated, the tested number of large-sized sheet material component is reduced, reduces cost and lead time.
Description
Technical field
It is corrugated more particularly to a kind of curved surface member building mortion, formed parts the present invention relates to component forming field
Removing method and system.
Background technology
Large complicated carved plate members are widely used in fields such as petrochemical industry, Aero-Space, to improve plate members
Reliability and bearing capacity, prior art is manufactured using integral forming method mostly, such as hydro-mechanical drawing method.But
Because plate members overall dimensions are big, wall thickness is ultra-thin, type face is complicated, during hydro-mechanical drawing, plate members are because easily producing
Part wrinkles and the mould that can not recline completely.
The content of the invention
It is an object of the invention to provide a kind of curved surface member building mortion, the corrugated removing method of formed parts and system,
To solve the problems, such as plate members easily corrugation during hydro-mechanical drawing.
To achieve the above object, the invention provides following scheme：
The invention provides a kind of curved surface member building mortion, including：Fluid media (medium) container, cavity plate and punch-pin；It is described recessed
Mould is located at the fluid media (medium) container upper surface, and the cavity plate forms lower mould with the fluid media (medium) in the fluid media (medium) container,
The lower mould is used for profile surface component with the punch-pin；
The punch-pin is internally provided with multiple displacement transducers, the curved surface of the contact formation of multiple institute's displacement sensors
Overlapped with the surface of the punch-pin；
The fluid media (medium) container is connected with hydraulic means, and the hydraulic means is connected with controller；The controller with
Institute's displacement sensors connection, the controller are used for the shift value for obtaining institute's displacement sensors detection, and according to institute's rheme
Shifting value controls the pressure of the fluid media (medium) in the hydraulic means adjustment fluid media (medium) container.
Optionally, central shaft of multiple institute's displacement sensors along the punch-pin is arranged circumferentially.
Optionally, institute's displacement sensors are arranged on a quarter type face of the punch-pin.
Optionally, institute's displacement sensors are arranged on the whole type face of the punch-pin.
Optionally, it is provided with sealing ring between the cavity plate and the fluid media (medium) container.
Present invention also offers a kind of corrugated removing method of formed parts, is shaped applied to curved surface member recited above
Device, it is characterised in that including：
Obtain the shift value of the displacement transducer of diverse location；
Judge whether the poor absolute value of shift value described in any two of same ring is more than preset value, obtain judging knot
Fruit；
When judged result represents that the poor absolute value of shift value described in any two of same ring is more than the preset value
When, improve backwards to pressure；The active force backwards to pressure for fluid media (medium) fluid in container medium to the component；
When judged result represents that the poor absolute value of shift value described in any two of same ring is default no more than described
During value, remain described constant backwards to pressure.
Optionally, the preset value is 0.15-0.25mm.
Optionally, the preset value is 0.2mm.
Present invention also offers a kind of corrugated elimination system of formed parts, including：
Acquisition module, the shift value of the displacement transducer for obtaining diverse location；
Judge module, it is default whether the poor absolute value for judging shift value described in any two of same ring is more than
Value, obtains judged result；
Module is improved backwards to pressure, for representing the poor of shift value described in any two of same ring when judged result
When absolute value is more than the preset value, improve backwards to pressure；The pressure backwards is fluid media (medium) fluid in container medium to institute
State the active force of component；
Backwards to pressure maintenance module, for representing the poor of shift value described in any two of same ring when judged result
When absolute value is not more than the preset value, remain described constant backwards to pressure.
Optionally, the preset value is 0.2mm.
According to specific embodiment provided by the invention, the invention discloses following technique effect：
Curved surface member building mortion, the corrugated removing method of formed parts and system provided by the invention, inside punch-pin
Multiple displacement transducers are set, and the curved surface that the contact of multiple displacement transducers is formed overlaps with the surface of punch-pin；Controller according to
The shift value of displacement transducer collection, each point of on-line checking plate members same ring in forming process whether with punch-pin
Distance it is consistent, and ultra-thin-wall heavy-gauge sheeting component is eliminated in hydro-mechanical drawing backwards to pressure according to the displacement on-line tuning of feedback
During local corrugation, reduce the tested number of large-sized sheet material component, reduce cost and lead time.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use, which is done, simply to be introduced, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the embodiment 1 of curved surface member building mortion of the present invention；
Fig. 2 is the structural representation of the embodiment 2 of curved surface member building mortion of the present invention；
Fig. 3 is the flow chart of the embodiment of the corrugated removing method of formed parts of the present invention；
Fig. 4 is the structured flowchart of the embodiment of the corrugated elimination system of formed parts of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The advantages of based on hydro-mechanical drawing technology, hydro-mechanical drawing method can be used for the shaping of ultra-thin-wall heavy-gauge sheeting component.But
Because test specimen overall dimensions are big, ultra-thin wall thickness, type face are complicated, suspension area circumferential compressive force is well over facing during hydro-mechanical drawing
Boundary wrinkles compression, easily produces local corrugation, and the mould that can not recline completely optimizes, it is necessary to lot of experiments is repeatedly repeated
Technological parameter, eliminate suspension area corrugation.
For the corrugation problem in above-mentioned shaping, the invention provides a kind of curved surface member building mortion, formed parts to rise
The removing method and system of wrinkle, to solve the problems, such as plate members easily corrugation during hydro-mechanical drawing.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the embodiment 1 of curved surface member building mortion of the present invention, and it is ellipse that embodiment 1 is used for shaping half
Sphere curved surface part.Fig. 2 is the structural representation of the embodiment 2 of curved surface member building mortion of the present invention, and embodiment 2 is used to shape
Flat conical part.
As depicted in figs. 1 and 2, the curved surface member building mortion includes：Fluid media (medium) container 1, cavity plate 2, blank holder 3,
Punch-pin 4, displacement transducer 5.
Cavity plate 4 is located at the upper surface of fluid media (medium) container 1, under cavity plate 2 is formed with the fluid media (medium) 8 in fluid media (medium) container 1
Mould, the lower mould are used for profile surface component with punch-pin 4；Sheet material blank 6 is placed on cavity plate 2, and the edge of sheet material blank 6 passes through
Blank holder 3 is fixed.
Punch-pin 4 is internally provided with multiple displacement transducers 5, the curved surface that the contacts of multiple displacement transducers 5 is formed with it is convex
The surface of mould 4 overlaps；Fluid media (medium) container 1 is connected with hydraulic means, and hydraulic means is connected with controller (not shown)；Control
Device processed is connected with displacement transducer 5, and controller is used for the shift value for obtaining the detection of displacement transducer 5, and is controlled according to shift value
The pressure of fluid media (medium) 8 in hydraulic means adjustment fluid media (medium) container 1.Displacement transducer 5 is set in punch-pin 4, in real time detection
Corrugation situation during blank deformation, facilitates on-line tuning technological parameter.
Central shaft of multiple displacement transducers 5 along punch-pin 4 is arranged circumferentially, due to punch-pin 4 be axial symmetry type face (such as Fig. 1 and
Shown in Fig. 2), displacement transducer 5 need to be only arranged on 1/4 type face of punch-pin 4, it is possible to which realization exists to whole sheet material blank
The monitoring of corrugation situation in forming process, it can so reduce the processing data of controller.
Fluid media (medium) container 1 is provided with the liquid hand-hole 1-1 that is communicated with cavity 1-2, passes through liquid hand-hole during work
1-1 injects fluid media (medium) 8 into fluid media (medium) container 1.Hydraulic means is connected by liquid hand-hole 1-1 and fluid media (medium) container 1
Connect, for improving the pressure of fluid media (medium) 8.
Fluid media (medium) container 1 is fixedly connected with cavity plate 4, and sealing ring 7 is provided between cavity plate 4 and fluid media (medium) container 1, is prevented
Only fluid media (medium) 8 leaks.
The endoporus passed through for punch-pin 4 is designed with blank holder 3, cavity plate 2, the maximum outside diameter of punch-pin 4 is respectively less than the He of blank holder 3
The internal orifice dimension of cavity plate 2, it can so facilitate moving up and down and ensureing drawing and be smoothed out for punch-pin 4.
The size difference of the internal orifice dimension of cavity plate 2 and the maximum outside diameter of punch-pin 4 is more than the thickness of sheet material blank, can so facilitate plate
Material blank is pressed into cavity plate 2 and sheet material blank does not rupture.In practical operation, the maximum outside diameter and the endoporus of cavity plate 2 of punch-pin 4 are controlled
The size difference in footpath is intended to 1.1 times of forming panels thickness, and this certain numerical value can also be slightly larger or slightly smaller, can realize the present invention's
Purpose.
Present invention also offers a kind of corrugated removing method of formed parts, applied to curved surface structure as depicted in figs. 1 and 2
Part building mortion.The shift value that the corrugated removing method of formed parts gathers according to displacement transducer, on-line checking plate
Whether each point of material component same ring in forming process is consistent with the distance of punch-pin, and is adjusted online according to the displacement of feedback
It is whole to be wrinkled backwards to pressure, part of the elimination ultra-thin-wall heavy-gauge sheeting component during hydro-mechanical drawing, reduce large-sized sheet material component
Tested number, reduce cost and lead time.
Fig. 3 is the flow chart of the embodiment of the corrugated removing method of formed parts of the present invention, as shown in figure 3, methods described
Including：
Step 301, the shift value of the displacement transducer of diverse location is obtained；
Step 302, judge whether the poor absolute value of shift value described in any two of same ring is more than preset value, obtain
To judged result；Optionally, the preset value is 0.15-0.25mm, optimal, and the preset value is 0.2mm.
Step 303, when judged result represents that the poor absolute value of shift value described in any two of same ring is more than institute
When stating preset value, improve backwards to pressure；The pressure backwards is effect of the fluid media (medium) fluid in container medium to the component
Power；
Step 304, when judged result represents that the poor absolute value of shift value described in any two of same ring is not more than
During the preset value, control is described constant backwards to pressure.
The detailed process being processed using the corrugated removing method of the formed parts to curved surface member is as follows：
A, the liquid hand-hole 1-1 on fluid media (medium) container 1 is connected with hydraulic means first, then held to fluid media (medium)
Injection fluid media (medium) 8 in device 1, the upper surface of the liquid level and cavity plate 2 of fluid media (medium) 8 is remained basically stable；
B, sheet material blank 6 is placed in the upper surface of cavity plate 2；
C, blank holder 3, punch-pin 4 are connected with forcing press, control blank holder 3 descending under the drive of forcing press blankholder slide
Extremely it is in contact with sheet material blank 6, and pressure-pad-force (as shown in F in Fig. 1) can be applied simultaneously, the purpose for applying pressure-pad-force is to keep away
Exempt from the flange drawing corrugation of sheet material blank 6.In actual applications, according to the difference of the size of sheet material blank 6, the pressure-pad-force it is big
It is small also to differ, avoid the corrugated purpose in the flange of sheet material blank 6 but as long as can realize.
D, (V institutes in such as Fig. 1 are moved down in the endoporus of blank holder 3 and cavity plate 2 in forcing press master slider driving lower punch 4
Show), punch-pin 4 continues to push after contacting with sheet material blank 6, while is situated between by the fluid in hydraulic means fluid medium container 1
The pressurization of matter 8 makes it be produced to sheet material blank 6 backwards to pressure P, is adjusted and carried on the back according to the same ring offset deviation value of displacement transducer 5
To pressure P, command displacement deviation<0.2mm, until sheet material blank 6 is pressed into cavity plate 2, process terminates.
E, will be backwards to pressure P releases, then master slider drives punch-pin 4 to move up, and blankholder slide drives blank holder 3 to move up, and takes
Go out formation of parts.
In present embodiment, by applying back pressure P to sheet material blank 6 in deformation process, detected by displacement transducer 5
The offset deviation of same ring position, it is controlled, realizes online when not producing larger wrinkle with corrugated trend
Detect and eliminate the shaping corrugation of complex-curved part, avoid drawing from finding the wrinkle on curved surface member after terminating and can not be in drawing mistake
Intervened in journey, controlled, reduced test number (TN), reduce cost.
Aluminium alloy AL1100 materials are formed using the above method and described device, 5 experiments can be passed through
Rational liquid chamber pressure loading curve is determined, avoids wrinkling, shortens the test period, reduce cost.
Present invention also offers a kind of corrugated elimination system of formed parts, Fig. 4 disappears for formed parts of the present invention are corrugated
Except the structured flowchart of the embodiment of system.As shown in figure 4, the system includes：Acquisition module 401, judge module 402, backwards
Pressure improves module 403 and backwards to pressure maintenance module 404；The output end of the acquisition module 401 is defeated with judge module 402
Enter end connection, the output end of judge module 402 is respectively with improving module 403 backwards to pressure and connecting backwards to pressure maintenance module 404
Connect.
Acquisition module 401, the shift value of the displacement transducer for obtaining diverse location；
Judge module 402, for judging whether the poor absolute value of shift value described in any two of same ring is more than
Preset value, obtain judged result；
Module 403 is improved backwards to pressure, for representing shift value described in any two of same ring when judged result
When the absolute value of difference is more than the preset value, improve backwards to pressure；The pressure backwards is fluid media (medium) fluid in container medium
To the active force of the component；
Backwards to pressure maintenance module 404, for representing shift value described in any two of same ring when judged result
When the absolute value of difference is not more than the preset value, remain described constant backwards to pressure.
Preset value is the empirical value obtained by test of many times, can be adjusted according to actual condition polarity.The present embodiment is excellent
Elect 0.15-0.25mm as, it is optimal for 0.2mm.
The present invention due to detecting blank corrugation situation, Ke Yishi during liquid filling deep-drawing forming in real time using displacement transducer
When adjusting and optimizing it is as follows backwards to pressure, its major advantage：
1st, punch-pin inbuilt displacement sensor, the corrugation situation during blank deformation is detected in good time, facilitates on-line tuning work
Skill parameter；
2nd, online carry out ridging defect monitoring, avoid afterwards repetition test, smooth away wrinkles, significantly reduce test number (TN) and into
This, is easily obtained process window.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the method and its core concept for understanding the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, in specific embodiments and applications there will be changes.In summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of curved surface member building mortion, it is characterised in that described device includes：Fluid media (medium) container, cavity plate and punch-pin；Institute
State cavity plate and be located at the fluid media (medium) container upper surface, the cavity plate is formed down with the fluid media (medium) in the fluid media (medium) container
Mould, the lower mould are used for profile surface component with the punch-pin；
The punch-pin is internally provided with multiple displacement transducers, the curved surface of the contact formation of multiple institute's displacement sensors and institute
The surface for stating punch-pin overlaps；
The fluid media (medium) container is connected with hydraulic means, and the hydraulic means is connected with controller；The controller with it is described
Displacement transducer connects, and the controller is used for the shift value for obtaining institute's displacement sensors detection, and according to the shift value
The hydraulic means is controlled to adjust the pressure of the fluid media (medium) in the fluid media (medium) container.
2. curved surface member building mortion according to claim 1, it is characterised in that multiple institute's displacement sensors are along institute
The central shaft for stating punch-pin is arranged circumferentially.
3. curved surface member building mortion according to claim 1, it is characterised in that institute's displacement sensors are arranged on described
On a quarter type face of punch-pin.
4. curved surface member building mortion according to claim 1, it is characterised in that institute's displacement sensors are arranged on described
On the whole type face of punch-pin.
5. curved surface member building mortion according to claim 1, it is characterised in that the cavity plate holds with the fluid media (medium)
Sealing ring is provided between device.
A kind of 6. corrugated removing method of formed parts, applied to the curved surface member building mortion described in claim 1, its feature
It is, the corrugated removing method of formed parts includes：
Obtain the shift value of the displacement transducer of diverse location；
Judge whether the poor absolute value of shift value described in any two of same ring is more than preset value, obtain judged result；
When the poor absolute value of shift value described in any two of the same ring of judged result expression is more than the preset value, carry
Highback is to pressure；The active force backwards to pressure for fluid media (medium) fluid in container medium to the component；
When the poor absolute value of shift value described in any two of the same ring of judged result expression is not more than the preset value,
Remain described constant backwards to pressure.
7. the corrugated removing method of formed parts according to claim 6, it is characterised in that the preset value is 0.15-
0.25mm。
8. the corrugated removing method of formed parts according to claim 7, it is characterised in that the preset value is 0.2mm.
A kind of 9. corrugated elimination system of formed parts, it is characterised in that including：
Acquisition module, the shift value of the displacement transducer for obtaining diverse location；
Judge module, for judging whether the poor absolute value of shift value described in any two of same ring is more than preset value,
Obtain judged result；
Module is improved backwards to pressure, for representing the poor absolute of shift value described in any two of same ring when judged result
When value is more than the preset value, improve backwards to pressure；The pressure backwards is fluid media (medium) fluid in container medium to the structure
The active force of part；
Backwards to pressure maintenance module, for representing the poor absolute of shift value described in any two of same ring when judged result
When value is not more than the preset value, remain described constant backwards to pressure.
10. the corrugated elimination system of formed parts according to claim 9, it is characterised in that the preset value is
0.2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793779.0A CN107442636B (en) | 2017-09-06 | 2017-09-06 | The corrugated removing method of curved surface member forming device, formed parts and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793779.0A CN107442636B (en) | 2017-09-06 | 2017-09-06 | The corrugated removing method of curved surface member forming device, formed parts and system |
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| CN107442636A true CN107442636A (en) | 2017-12-08 |
| CN107442636B CN107442636B (en) | 2019-01-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108161353A (en) * | 2017-12-25 | 2018-06-15 | 哈尔滨工业大学 | A kind of uniform integrally formed method of large aluminum alloy tailor welded end socket of performance |
| CN109647962A (en) * | 2018-11-30 | 2019-04-19 | 四川航天长征装备制造有限公司 | A kind of part hydraulic tensioning manufacturing process |
| CN112058995A (en) * | 2020-09-04 | 2020-12-11 | 中国航空发动机研究院 | Liquid chamber pressure loading interval calculation method and device and storage medium |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
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| CN205324387U (en) * | 2015-12-16 | 2016-06-22 | 广东工业大学 | High -pressure forming process on -line measuring system in three -way pipe |
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| EP0985465A2 (en) * | 1998-09-09 | 2000-03-15 | Kabushiki Kaisha Opton | Bulging device and bulging method |
| CN102513435A (en) * | 2011-12-15 | 2012-06-27 | 哈尔滨工业大学 | Plate back press forming method utilizing displacement control mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108161353A (en) * | 2017-12-25 | 2018-06-15 | 哈尔滨工业大学 | A kind of uniform integrally formed method of large aluminum alloy tailor welded end socket of performance |
| CN108161353B (en) * | 2017-12-25 | 2019-07-02 | 哈尔滨工业大学 | A kind of uniform integrally formed method of large aluminum alloy tailor welded end socket of performance |
| CN109647962A (en) * | 2018-11-30 | 2019-04-19 | 四川航天长征装备制造有限公司 | A kind of part hydraulic tensioning manufacturing process |
| CN112058995A (en) * | 2020-09-04 | 2020-12-11 | 中国航空发动机研究院 | Liquid chamber pressure loading interval calculation method and device and storage medium |
| CN112058995B (en) * | 2020-09-04 | 2022-08-23 | 中国航空发动机研究院 | Liquid chamber pressure loading interval calculation method and device and storage medium |
| CN112697092A (en) * | 2021-01-28 | 2021-04-23 | 哈尔滨工业大学 | Detection device and detection method for precision of inner profile of curved surface member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107442636B (en) | 2019-01-22 |
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