CN111468560A - Large-area micro-channel polar plate ultrasonic field shape correction assisting device - Google Patents
Large-area micro-channel polar plate ultrasonic field shape correction assisting device Download PDFInfo
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- CN111468560A CN111468560A CN202010293481.5A CN202010293481A CN111468560A CN 111468560 A CN111468560 A CN 111468560A CN 202010293481 A CN202010293481 A CN 202010293481A CN 111468560 A CN111468560 A CN 111468560A
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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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
Abstract
The application relates to a large-area micro-channel polar plate ultrasonic field shaping assisting device which is connected with an external driving device, wherein the large-area micro-channel polar plate ultrasonic field shaping assisting device comprises a fixing assembly, a shaping assembly which is butted with the fixing assembly and enables a target to be shaped under the action of external force, and an ultrasonic vibrator which is used for transmitting the force of the external driving device to the shaping assembly, wherein the fixing assembly comprises a fixing plate and a base arranged on the fixing plate; the fixing plate is provided with a first groove, the large-area micro-channel polar plate ultrasonic field shape correction assisting device further comprises an elastic piece arranged in the first groove and connected with the base, and the elastic piece is in a compression state under the action of gravity of the base. The ultrasonic micro-channel depth measuring device can remove stress and improve the consistency of the depth of the micro-channel by using an ultrasonic field, pressure and elastic force, and is efficient and convenient.
Description
Technical Field
The invention relates to an ultrasonic field shape correction assisting device for a large-area micro-channel polar plate, and belongs to the field of forming and manufacturing of ultrathin sheet complex microstructure parts.
Background
The large-area thin plate micro-channel polar plate has various functions of mass transfer, heat exchange and the like, and is widely applied to the fields of fuel cells, high-efficiency heat exchangers and the like. In order to reduce the volume and the quality and improve the efficiency of mass transfer, heat exchange and the like, the wall thickness of the component is very small, usually less than 100 mu m, the width dimension of the micro-channel is less than 1.0mm, and other accessory structures are needed for polar plate assembly, encapsulation and the like, the micro-structure distribution is not uniform, so that the component is very easy to generate the defects of warping, large error of the depth of the micro-channel and the like in the forming and manufacturing process, and the adverse effect is brought to the subsequent performance of assembly, encapsulation, mass transfer, heat exchange and the like.
The micro-channel pole plate is warped due to non-uniform plastic deformation, a large internal stress exists inside the micro-channel pole plate, the stress state of the micro-channel pole plate is hardly influenced by adopting a conventional and simple pressure-applying shape-correcting method, the defects of the surface type warping and the like are difficult to remove, and the micro-channel pole plate is very thin in wall thickness and very easy to break when an external acting force is large.
Disclosure of Invention
The invention aims to provide an ultrasonic field assisted shape correction device for a large-area micro-channel polar plate, which can remove stress and improve the depth consistency of a micro-channel by using an ultrasonic field, and is efficient and convenient.
In order to achieve the purpose, the invention provides the following technical scheme: a large-area micro-channel polar plate ultrasonic field shaping assisting device is connected with an external driving device and comprises a fixing component, a shaping component which is butted with the fixing component and enables a target to be shaped under the action of external force, and an ultrasonic vibrator which is used for transmitting the force of the external driving device to the shaping component, wherein the fixing component comprises a fixing plate and a base arranged on the fixing plate;
the fixing plate is provided with a first groove, the large-area micro-channel polar plate ultrasonic field shape correction assisting device further comprises an elastic piece arranged in the first groove and connected with the base, and the elastic piece is in a compression state under the action of gravity of the base.
Further, the fixed subassembly still includes the limiting plate that prevents base horizontal migration, the limiting plate passes through the fixed setting of fastener on the fixed plate.
Furthermore, the limiting plate is provided with an accommodating part, and the base is accommodated in the accommodating part and at least partially protrudes out of the accommodating part.
Furthermore, a lug is arranged on the base, a stop piece for limiting the stroke of the lug is arranged in the accommodating part, and a gap is reserved between the lug and the stop piece.
Further, the forming assembly comprises a first die and a second die in butt joint with the first die, the first die is connected with the driving assembly, and the second die is arranged on the base.
Further, a second groove is formed in the base, and the second mold is provided with a protrusion matched with the second groove in shape; the cross sections of the second groove and the bulge are spherical.
Further, the first mold has a first molding surface disposed toward the second mold, the second mold has a second molding surface disposed toward the first mold, and microstructures are disposed on the first molding surface and the second molding surface.
Further, the microstructure is an uneven surface, and the uneven surface is any one of a wave-shaped surface, an arc-shaped surface, a slope-shaped surface and a wedge-shaped surface.
Furthermore, the working frequency range of the ultrasonic vibrator is 10-40kHz, and the longitudinal amplitude range of the ultrasonic vibrator is 0.5-10 μm.
Further, the target to be formed is a polar plate, and the elastic piece is a spring.
The invention has the beneficial effects that: through being provided with the ultrasonic vibrator, the ultrasonic vibrator is used for transmitting external drive device's effort to the subassembly that takes shape, is provided with first recess on the fixed plate simultaneously, is provided with the elastic component in the first recess, and the elastic component is in compression state under the action of gravity of base to give the ascending reaction force of base. Under the dual action of the acting force of the external driving device and the reacting force of the elastic part, the base enables the target to be formed to be in close and uniform contact with the forming assembly, so that the effects of removing internal stress and reducing friction between the forming assembly and the target to be formed are achieved, and the defect of warping of the large-area micro-channel polar plate is fundamentally eliminated.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic field assisted shaping device for a large-area micro-channel plate according to the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, an ultrasonic field assisted shaping device of a large-area micro flow channel plate 3 in a preferred embodiment of the invention is connected to an external driving device. In this embodiment, the external driving device is a precision material testing machine, which can realize real-time display and precise control of displacement and force in the calibration process, and is not specifically limited herein and is determined according to actual conditions.
The large-area micro-channel polar plate 3 ultrasonic field assisted correction device comprises a fixing assembly 1, a forming assembly 2 which is in butt joint with the fixing assembly 1 and enables a target to be formed under the action of external force, and an ultrasonic vibrator 4 which is used for transmitting the force of an external driving device to the forming assembly 2, wherein the precise material testing machine is provided with a cross beam, and the ultrasonic vibrator 4 is fixed on the cross beam through a support and moves up and down along with the cross beam. In this embodiment, the target to be formed is a polar plate 3, and micro channels with different depths are arranged on the polar plate 3. The working frequency range of the ultrasonic vibrator 4 is 10-40kHz, and the longitudinal amplitude range is 0.5-10 mu m. It is needless to say that the operating frequency range and the longitudinal amplitude range of the ultrasonic vibrator 4 may be other ranges, and are not particularly limited herein.
The fixing component 1 comprises a fixing plate 11 and a base 12 arranged on the fixing plate 11, a first groove 111 is formed in the fixing plate 11, the large-area micro-channel pole plate 3 ultrasonic field shape correction device further comprises an elastic piece 14 arranged in the first groove 111 and connected with the base 12, the elastic piece 14 is in a compression state under the action of gravity of the base 12, the elastic piece 14 in the compression state always provides upward elastic acting force for the base 12, and therefore the forming component 2 is in close and uniform contact with a target to be formed under the action of the elastic acting force and an external driving device, and the warping defect of the large-area micro-channel pole plate 3 is eliminated. The contact force between the forming assembly 2 and the object to be formed can be adjusted by means of a spring 14, said spring 14 being in this embodiment a spring 14. Indeed, in other embodiments, the elastic element 14 may be other, and is not limited in particular, according to the actual situation.
The fixing assembly 1 further comprises a limiting plate 15 for preventing the base 12 from horizontally displacing, and the limiting plate 15 is fixedly arranged on the fixing plate 11 through a fastener 13. The limiting plate 15 is provided with a receiving portion, and the base 12 is received in the receiving portion and at least partially protrudes out of the receiving portion. In order to make the force applied to the limiting plate 15 uniform, in this embodiment, the receiving portion is disposed in the middle of the limiting plate 15, and the receiving portion is disposed through the limiting member to connect the base 12 and the fixing plate 11. The base 12 is provided with a convex block 121, the convex block 121 is arranged on two sides of the base 12, correspondingly, a stop member 151 for limiting the stroke of the convex block 121 is arranged in the accommodating part, and a gap is left between the convex block 121 and the stop member 151, so that the base 12 can realize tiny fine adjustment of the position in the vertical direction, and the effect of tight and uniform contact between the target to be formed and the forming component 2 is achieved. In this embodiment, the stopping member 151 is a slot, the protrusion 121 is disposed in the slot, and the protrusion 121 is disposed at the bottom of the two sides of the base 12.
The forming assembly 2 comprises a first mold 21 and a second mold 22 butted with the first mold 21, the first mold 21 is detachably connected with the second mold 22, the first mold 21 is connected with an external driving device, and the second mold 22 is arranged on the base 12. The first mold 21 has a first forming surface disposed toward the second mold 22, the second mold 22 has a second forming surface disposed toward the first mold 21, and the object to be formed is placed in the middle of the first mold 21 and the second mold 22, i.e., in the middle of the first forming surface and the second forming surface. Wherein, the first forming surface and the second forming surface are provided with microstructures. The microstructure is an uneven surface, the uneven surface is any one of a wavy surface, an arc surface, a slope surface and a wedge surface, and the microstructures on the first forming surface and the second forming surface are matched with each other.
A second groove 122 is arranged on the base 12, and the second mold 22 is provided with a protrusion 221 matched with the shape of the second groove 122; the cross-sectional shapes of the second groove 122 and the protrusion 221 are spherical. Indeed, in other embodiments, the cross-sectional shapes of the second groove 122 and the protrusion 221 may be other, and are not limited herein, depending on the actual situation. The polar plate 3 generates micro deformation under the action of the ultrasonic field, the pressure and the spring 14 force, and the stress in the polar plate 3 is released, so that the defects of the polar plate 3 such as warping and the like are eliminated. Meanwhile, the micro-channel with the smaller depth on the polar plate 3 is stressed more, plastic deformation is generated, and the depth of the micro-channel with the smaller depth is gradually increased under the effects of improving the plastic deformation performance, reducing the interface friction force and the like of the ultrasonic field until the depths of all the micro-channels on the polar plate 3 are the same. In the process, technological parameters such as the power, the acting time and the like of the ultrasonic vibrator 4 can be adjusted according to the area of the micro-channel, the material performance of the polar plate 3 and the like, so that the optimal effect is obtained.
The forming assembly 2 is further provided with a force sensor for detecting the magnitude of the force applied to the forming assembly 2 by the external driving device, the force sensor can be disposed on the first mold 21 and/or the second mold 22, and the connection manner is conventional, which is not described herein again.
The specific implementation process of the ultrasonic field assisted correction device for the large-area micro-channel polar plate 3 comprises the following steps: the working frequency and the longitudinal amplitude of the ultrasonic vibrator 4 are adjusted, and the pressure values between the first die 21 and the polar plate 3 and between the second die 22 and the polar plate 3 are set. The electrode plate 3 is placed between the first mold 21 and the second mold 22, and pressure is applied to the first mold 21, the second mold 22, and the electrode plate 3 by an external driving device. And when the pressure reaches a preset value, an excitation power supply of the ultrasonic vibrator 4 is turned on, the ultrasonic field acts on the polar plate 3 through the first die 21 to be corrected, and the duration time of the ultrasonic field is determined according to the warping degree of the polar plate 3, the performance of the thin plate, the depth error of the micro-channel and the amplitude of the ultrasonic vibrator 4. When the action time of the ultrasonic field reaches a set value, the excitation power supply of the ultrasonic vibrator 4 is closed, and the external driving device is started, so that the first die 21 is separated from the second die 22, and the formed polar plate 3 is taken out.
In summary, the following steps: by providing the ultrasonic vibrator 4, the ultrasonic vibrator 4 is configured to transmit the acting force of the external driving device to the forming assembly 2, meanwhile, the fixing plate 11 is provided with a first groove 111, an elastic member 14 is disposed in the first groove 111, and the elastic member 14 is in a compressed state under the gravity of the base 12 to provide an upward reaction force to the base 12. Under the dual action of the acting force of the external driving device and the reacting force of the elastic part 14, the base 12 enables the object to be formed to be in close and uniform contact with the forming component 2, so as to achieve the effects of removing the internal stress and reducing the friction between the forming component 2 and the object to be formed, and fundamentally eliminate the defect of warping of the large-area micro-channel polar plate 3.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The large-area micro-channel polar plate ultrasonic field shaping assisting device is connected with an external driving device and is characterized by comprising a fixing assembly, a shaping assembly and an ultrasonic vibrator, wherein the shaping assembly is butted with the fixing assembly and enables a target to be shaped under the action of external force, the ultrasonic vibrator is used for transmitting the force of the external driving device to the shaping assembly, and the fixing assembly comprises a fixing plate and a base arranged on the fixing plate;
the fixing plate is provided with a first groove, the large-area micro-channel polar plate ultrasonic field shape correction assisting device further comprises an elastic piece arranged in the first groove and connected with the base, and the elastic piece is in a compression state under the action of gravity of the base.
2. The large area micro fluidic channel plate ultrasound field assisted shaping device of claim 1, wherein the fixture assembly further comprises a limiting plate that prevents the base from horizontal displacement, the limiting plate being fixedly disposed on the fixture plate by fasteners.
3. The large area micro flow channel plate ultrasound field assisted shaping device of claim 2, wherein the limiting plate has a receiving portion, and the base is received in the receiving portion and at least partially protrudes out of the receiving portion.
4. The large area micro flow channel plate ultrasonic field assisted shaping device of claim 3, wherein the base is provided with a protrusion, the receiving portion is provided with a stop member for limiting the travel of the protrusion, and a gap is left between the protrusion and the stop member.
5. The large area micro fluidic channel plate ultrasonic field assisted shaping device of claim 1, wherein the shaping assembly comprises a first mold and a second mold abutting the first mold, the first mold being coupled to the drive assembly, the second mold being disposed on the base.
6. The large area micro flow channel plate ultrasonic field assisted shaping device of claim 5, wherein the base is provided with a second groove, and the second mold has a protrusion matching the shape of the second groove; the cross sections of the second groove and the bulge are spherical.
7. The large area micro fluidic channel plate ultrasound field assisted shaping device of claim 5, wherein the first mold has a first shaping surface disposed toward the second mold, the second mold has a second shaping surface disposed toward the first mold, and the first and second shaping surfaces have microstructures disposed thereon.
8. The large area micro flow channel plate ultrasonic field assisted shaping device of claim 7, wherein the microstructure is an uneven surface, the uneven surface being any one of a wavy surface, an arc surface, a slope surface and a wedge surface.
9. The large area micro flow channel plate ultrasonic field shaping aid of claim 1, wherein the ultrasonic vibrator has a working frequency range of 10-40kHz and a longitudinal amplitude range of 0.5-10 μm.
10. The large area micro fluidic channel plate ultrasonic field assisted shaping device of claim 1 wherein the object to be shaped is a plate and the elastic member is a spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010293481.5A CN111468560A (en) | 2020-04-15 | 2020-04-15 | Large-area micro-channel polar plate ultrasonic field shape correction assisting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010293481.5A CN111468560A (en) | 2020-04-15 | 2020-04-15 | Large-area micro-channel polar plate ultrasonic field shape correction assisting device |
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| CN111468560A true CN111468560A (en) | 2020-07-31 |
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| CN202010293481.5A Pending CN111468560A (en) | 2020-04-15 | 2020-04-15 | Large-area micro-channel polar plate ultrasonic field shape correction assisting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309232A (en) * | 2021-12-27 | 2022-04-12 | 华中科技大学 | Micro-channel fillet correction device and method for metal plate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143811A (en) * | 2008-09-04 | 2011-08-03 | 恩勒两合公司 | Method and apparatus for improving mechanical properties of materials that can be magnetically activated |
| CN203459520U (en) * | 2013-07-29 | 2014-03-05 | 长城汽车股份有限公司 | Stamp-marking device and stamping die with same |
| CN206677043U (en) * | 2017-05-02 | 2017-11-28 | 广东省嘉应机械厂 | Oil seal seat presses oil ring one-time-shaped mould |
| CN107931420A (en) * | 2017-11-28 | 2018-04-20 | 哈尔滨工业大学 | Miniature thin-wall revolving body workpieces based on ultrasonic vibration auxiliary shape corrector |
| CN108262842A (en) * | 2017-01-03 | 2018-07-10 | 蓝思科技（长沙）有限公司 | Profiling is automatically positioned center of circle device and copying apparatus |
| CN110788192A (en) * | 2019-11-13 | 2020-02-14 | 苏州大学 | Ultrasonic field assisted bulging device and method for ultrathin-wall complex curved surface microstructure |
| CN210100387U (en) * | 2019-04-19 | 2020-02-21 | 新沂市宝群石英有限公司 | Hole machining device for quartz pipeline |
-
2020
- 2020-04-15 CN CN202010293481.5A patent/CN111468560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143811A (en) * | 2008-09-04 | 2011-08-03 | 恩勒两合公司 | Method and apparatus for improving mechanical properties of materials that can be magnetically activated |
| CN203459520U (en) * | 2013-07-29 | 2014-03-05 | 长城汽车股份有限公司 | Stamp-marking device and stamping die with same |
| CN108262842A (en) * | 2017-01-03 | 2018-07-10 | 蓝思科技（长沙）有限公司 | Profiling is automatically positioned center of circle device and copying apparatus |
| CN206677043U (en) * | 2017-05-02 | 2017-11-28 | 广东省嘉应机械厂 | Oil seal seat presses oil ring one-time-shaped mould |
| CN107931420A (en) * | 2017-11-28 | 2018-04-20 | 哈尔滨工业大学 | Miniature thin-wall revolving body workpieces based on ultrasonic vibration auxiliary shape corrector |
| CN210100387U (en) * | 2019-04-19 | 2020-02-21 | 新沂市宝群石英有限公司 | Hole machining device for quartz pipeline |
| CN110788192A (en) * | 2019-11-13 | 2020-02-14 | 苏州大学 | Ultrasonic field assisted bulging device and method for ultrathin-wall complex curved surface microstructure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309232A (en) * | 2021-12-27 | 2022-04-12 | 华中科技大学 | Micro-channel fillet correction device and method for metal plate |
| CN114309232B (en) * | 2021-12-27 | 2022-08-16 | 华中科技大学 | Micro-channel fillet correction device and method for metal plate |
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Application publication date: 20200731 |