CN217141970U - Flexible multipoint mould electrohydraulic composite forming equipment for plate - Google Patents
Flexible multipoint mould electrohydraulic composite forming equipment for plate Download PDFInfo
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- CN217141970U CN217141970U CN202123160200.8U CN202123160200U CN217141970U CN 217141970 U CN217141970 U CN 217141970U CN 202123160200 U CN202123160200 U CN 202123160200U CN 217141970 U CN217141970 U CN 217141970U
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Abstract
The application provides a flexible multiple spot mould electricity liquid composite forming equipment of panel includes: the device comprises a fixing device, an electro-hydraulic forming device and a die device; the fixing device is used for pressing and fixing the plate to be processed; the electro-hydraulic forming device and the fixing device are respectively positioned at two opposite sides of the plate to be processed, and the electro-hydraulic forming device and the fixing device are matched to realize the press fit and fixation of the plate to be processed; the electro-hydraulic forming device is used for processing and forming the plate to be processed; the die device is arranged on one side, away from the electro-hydraulic forming device, of the plate to be processed and is used for shaping the plate to be processed in the process of processing and forming the plate by the electro-hydraulic forming device. The electro-hydraulic composite forming equipment for the flexible multi-point die of the plate can reduce the high cost of processing a specific die, improve the forming surface quality of the plate and improve the forming performance of a material difficult to deform. The equipment is suitable for small-batch forming processing of the plate parts made of the materials difficult to deform, greatly reduces the processing cost and improves the economic benefit.
Description
Technical Field
The utility model relates to a technical field of panel processing specifically relates to a flexible multiple spot mould electricity liquid composite forming equipment of panel.
Background
The multipoint forming process is that a series of independent discrete height-adjustable basic groups are used for constructing the shape of a traditional upper die and a traditional lower die, and the movement of the basic groups is controlled in real time by a computer, so that different die curved surfaces are freely constructed, and the forming of various curved surfaces of plates is realized. The method avoids the high cost of processing a specific die, is more suitable for small-batch production of sheet metal parts, but in actual production, pits exist on the surfaces of parts subjected to multipoint forming processing, and the surface quality is poor.
The light alloy material is widely applied to the light weight development in the fields of automobiles, aerospace and the like due to the excellent mechanical property of the light alloy material. However, such materials are easily broken when formed by a conventional press die and have low formability. It has been found that high rate forming can significantly improve the formability of the material. The electro-hydraulic forming is a high-speed forming process for enabling a metal plate to generate plastic deformation by using huge pulse energy released during discharge of pulse voltage between two electrodes immersed in liquid, and compared with explosion forming, the electro-hydraulic forming is easy to control and has engineering application prospects in light weight development. Electro-hydraulic forming, however, requires the machining of specific mold halves, and the corresponding tooling costs are still very expensive for small volume production parts.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a flexible multiple spot mould electricity liquid composite forming equipment of panel, flexible multiple spot mould electricity liquid composite forming equipment of panel includes:
the fixing device is used for pressing and fixing the plate to be processed;
the electro-hydraulic forming device and the fixing device are respectively positioned on two opposite sides of the plate to be processed, and the electro-hydraulic forming device and the fixing device are matched to realize the press-fit fixation of the plate to be processed; the electro-hydraulic forming device is used for processing and forming the plate to be processed;
and the die device is arranged on one side of the plate to be processed, which deviates from the electro-hydraulic forming device, and is used for shaping the plate to be processed in the process of processing and forming by the electro-hydraulic forming device.
Wherein, electricity liquid forming device includes:
the discharging cavity comprises a side wall and a bottom wall, and is formed with an accommodating cavity with an opening at the top, and the accommodating cavity is filled with electrolyte;
and the electrode is inserted into the accommodating cavity and is immersed in the electrolyte.
The fixing device is matched with the top end face of the side wall of the discharge cavity to fix the plate to be processed.
And the top end face of the side wall of the discharge cavity is also provided with a sealing ring, and the sealing ring is positioned between the plate to be processed and the top end face of the side wall.
The die device comprises a plurality of groups of supporting units arranged in a matrix, each supporting unit comprises a driving assembly and a pressure head assembly, and the driving assembly is connected with the pressure head assembly and used for driving the pressure head assembly to move.
Wherein the driving assembly comprises a cylinder and a piston rod; the pressure head subassembly includes movable support rod, fixed plate and pressure head, the piston rod with movable support rod connects, the fixed plate set firmly in movable support rod deviates from the one end of piston rod, the pressure head with the fixed plate is connected.
The pressure head is connected with the fixing plate through a ball head structure, and therefore the pressure head can rotate relative to the fixing plate.
The die device further comprises an elastic pad, and the elastic pad is arranged between the pressure head assembly and the plate to be processed.
The fixing device comprises a driving unit and a pressing unit, wherein the driving unit is connected with the pressing unit and used for driving the pressing unit to move so as to be far away from or close to the top end face of the side wall of the discharge cavity.
The drive unit comprises an air cylinder and a piston rod, the pressing unit comprises a pressing edge plate and a pressing edge support rod, the piston rod is connected with the pressing edge support rod, the pressing edge support rod is connected with the pressing edge plate, and the pressing edge plate is of an annular structure.
The electro-hydraulic composite forming equipment for the flexible multi-point die of the plate, provided by the embodiment of the application, can reduce the high cost of processing a specific die, improve the forming surface quality of the plate and improve the forming performance of a material difficult to deform.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of a flexible multi-point die electro-hydraulic composite forming device for a sheet material according to the present application;
FIG. 2 is a schematic structural diagram of an electrohydraulic forming device of the flexible multipoint mold electrohydraulic composite forming equipment for the sheet material in the embodiment of FIG. 1;
FIG. 3 is a schematic structural diagram of a die device of the flexible multi-point die electro-hydraulic composite forming equipment for the sheet material in the embodiment of FIG. 1;
FIG. 4 is a schematic structural diagram of a fixing device of the flexible multipoint mold electro-hydraulic composite forming equipment for the sheet material in the embodiment of FIG. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only for illustrating the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
The terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
An object of the utility model is to provide a flexible multiple spot mould of panel-compound forming device of electricity liquid to effectively improve the formability of difficult deformation panel parts such as light alloy, avoid the high-priced expense of specific mould processing simultaneously, and effectively improve the surface quality of shaping part.
Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of a flexible multi-point die electro-hydraulic composite forming apparatus for a sheet material according to the present application; the flexible multipoint mould electro-hydraulic composite forming equipment for the plate comprises but is not limited to the following structures: fixing device, electric liquid forming device and die set. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.
Specifically, the fixing device is used for pressing and fixing the plate to be processed; the electro-hydraulic forming device and the fixing device are respectively positioned on two opposite sides of the plate 7 to be processed, and the electro-hydraulic forming device and the fixing device are matched to realize the pressing and fixing of the plate 7 to be processed; the electro-hydraulic forming device is used for processing and forming the plate 7 to be processed; the die device is arranged on one side, away from the electro-hydraulic forming device, of the plate 7 to be processed and is used for shaping the plate 7 to be processed in the process of processing and forming by the electro-hydraulic forming device.
Optionally, referring to fig. 1 and fig. 2 together, fig. 2 is a schematic structural diagram of an electro-hydraulic forming device of the flexible multi-point die electro-hydraulic composite forming apparatus for a sheet material in the embodiment of fig. 1; this electricity liquid forming device includes: a discharge cavity 3 and an electrode 2. The discharge cavity 3 comprises a side wall and a bottom wall, and is formed with an accommodating cavity with an opening at the top, and the accommodating cavity is filled with electrolyte 4; the electrodes 2 are inserted in the housing cavities and immersed in the electrolyte 4. A wire 5 is provided between the electrodes 2. The electro-hydraulic forming device mainly generates huge shock waves to enable the plate 7 to be processed to be attached to the surface of a die to form a part in a target shape. The electro-hydraulic forming device further comprises a pulse electro-hydraulic charging and discharging device 1, wherein the pulse electro-hydraulic charging and discharging device 1 is connected with the electrode 2 and used for providing pulse current. Optionally, the fixing device is matched with the top end surface of the side wall of the discharge cavity 3 to fix the plate 7 to be processed. And the top end surface of the side wall of the discharge cavity 3 is also provided with a sealing ring 6, and the sealing ring 6 is positioned between a plate 7 to be processed and the top end surface of the side wall.
Optionally, the mold device includes a plurality of sets of supporting units arranged in a matrix, each supporting unit includes a driving assembly and a pressing head assembly, and the driving assembly is connected with the pressing head assembly and used for driving the pressing head assembly to move. Referring to fig. 1 and fig. 3 together, fig. 3 is a schematic structural diagram of a die device of the flexible multi-point die electro-hydraulic composite forming apparatus for sheet material in the embodiment of fig. 1, in which the driving assembly includes a cylinder 13 and a piston rod 12; the pressure head subassembly includes movable support rod 16, fixed plate 15 and pressure head 10, piston rod 12 with movable support rod 16 is connected, fixed plate 15 set firmly in movable support rod 16 deviates from the one end of piston rod 12, pressure head 10 with fixed plate 15 is connected. Optionally, the pressing head 10 is connected to the fixing plate 15 through a ball head structure, so that the pressing head 10 can rotate relative to the fixing plate 15.
Alternatively, the cylinder 13 may be fixed on the cross beam 8 of the machine tool, and the cylinder 20 in the cylinder 13 is moved up and down by controlling the pressure difference between the two oil inlets 18 and the oil outlets 19, so as to drive the piston rod 12 to move up and down, and further drive the movable support rod 16 to move. Optionally, the ram 10 is connected to a movable support rod 16 through a fixed plate 15 to realize the up-and-down movement of the ram 10. Meanwhile, the indenter 10 can be arbitrarily rotated in the movable support bar 16. The above-mentioned up-and-down movement and rotation movement implement the free shape adjustment of the multipoint forming die, the multiple press heads 10 work together to implement the continuity of the whole die surface,
optionally, the die device in this embodiment further includes an elastic pad 17, where the elastic pad 17 is disposed between the pressing head assembly and the plate 7 to be processed, and specifically, the elastic pad 17 may be added between the plate 7 to be processed and the pressing head 10 to make the surface of the formed plate smoother. The non-forming acting surface 14 of the elastic pad 17 is arranged corresponding to the pressing head 10, and the forming acting surface (the back surface of the non-forming acting surface 14) is arranged corresponding to the plate 7 to be processed.
Optionally, the fixing device includes a driving unit and a pressing unit, and the driving unit is connected to the pressing unit and configured to drive the pressing unit to move so as to be away from or close to a top end surface of a sidewall of the discharge cavity. Referring to fig. 1 and 4 together, fig. 4 is a schematic structural diagram of a fixing device of the electro-hydraulic composite forming apparatus of the flexible multi-point die for sheet material in the embodiment of fig. 1. The driving unit includes a cylinder 13 and a piston rod 12 (wherein, the cylinder 13 and the piston rod 12 of the driving unit may be the same structure as the cylinder 13 and the piston rod 12 of the mold apparatus driving assembly, and therefore, the same reference numerals are used for description herein). Alternatively, the fixing device may include a plurality of sets of driving units, each of which includes a cylinder 13 and a piston rod 12, and four sets of driving units are illustrated in the illustrated embodiment as an example.
With continuing reference to fig. 1 and 4, optionally, the pressing unit includes a pressing plate 9 and a pressing support rod 11, the piston rod 12 is connected to the pressing support rod 11, the pressing support rod 11 is connected to the pressing plate 9, and the pressing plate 9 is of an annular structure and cooperates with a top end face of a side wall of the discharge cavity 3 of the electro-hydraulic forming device to press and fix the plate 7 to be processed.
Optionally, the cylinder 13 may also be fixed on the machine tool cross beam 8, and the cylinder 20 in the cylinder 13 moves up and down by controlling the pressure difference between the two oil inlets 18 and the oil outlets 19, so as to drive the piston rod 12 to move up and down, and further drive the blank holder support rod 11 to move, and the blank holder support rod 11 is connected and fixed with the blank holder 9 through a thread, so that the blank holder 9 can move up and down, thereby realizing the blank holder effect before the forming of the plate 7 to be processed, and preventing wrinkling. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Before an electro-hydraulic forming experiment, electro-hydraulic 4 is filled in a discharge cavity 3, then a plate 7 to be processed is placed above the discharge cavity 3, a sealing ring 6 is placed between the discharge cavity and the sealing ring, and a multi-point die device and a fixing device with well adjusted shapes move downwards to achieve the effects of pre-forming the shapes of dies and pressing edges. Then realize high pressure in the pulse electricity liquid charge-discharge device 1 and charge and discharge, huge electric energy makes wire 5 explode through electrode 2 to produce huge shock wave in electricity liquid 4, the shock wave acts on the lower surface of waiting to process panel 7, makes waiting to process panel 7 take place plastic deformation, laminates on the pressure head 10 of multiple spot forming die device through cushion 17, realizes the quick plastic deformation process of panel.
The technical problem to be solved by the technical scheme of the embodiment of the application is as follows: the method overcomes the high-efficiency and economic problems of small-batch production of the parts of the plate difficult to deform in the prior art, realizes the deformation problem of the material difficult to deform by adopting a flexible forming mode combining pulse electro-hydraulic and multipoint forming, further reduces the processing cost of the die, and realizes multiple purposes of one die. The flexible multi-point die electro-hydraulic composite forming equipment for the plate can adjust the height and the angle of a die pressure head at will according to the target shape of a formed part, and effectively avoids the surface defects of the formed part through the action of the elastic cushion; meanwhile, through the electro-hydraulic forming instantaneous pulse discharge effect, the formed plate is quickly attached to the surface of the die, and the formability of the light alloy part is effectively improved. Therefore, the device is very suitable for small-batch forming processing of the plate parts made of the materials difficult to deform, the processing cost is greatly reduced, and the economic benefit is improved.
The above only is the partial embodiment of the utility model discloses a not therefore restriction the utility model discloses a protection scope, all utilize the utility model discloses equivalent device or equivalent flow transform that the content of description and drawing was done, or direct or indirect application in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (10)
1. The utility model provides a flexible multiple spot mould electricity liquid composite forming equipment of panel which characterized in that, flexible multiple spot mould electricity liquid composite forming equipment of panel includes:
the fixing device is used for pressing and fixing the plate to be processed;
the electro-hydraulic forming device and the fixing device are respectively positioned on two opposite sides of the plate to be processed, and the electro-hydraulic forming device and the fixing device are matched to realize the press-fit fixation of the plate to be processed; the electro-hydraulic forming device is used for processing and forming the plate to be processed;
and the die device is arranged on one side of the plate to be processed, which deviates from the electro-hydraulic forming device, and is used for shaping the plate to be processed in the process of processing and forming by the electro-hydraulic forming device.
2. The electro-hydraulic compound forming device for the flexible multipoint mould of the plate according to claim 1, wherein the electro-hydraulic forming device comprises:
the discharging cavity comprises a side wall and a bottom wall, and is formed with an accommodating cavity with an opening at the top, and the accommodating cavity is filled with electrolyte;
and the electrode is inserted into the accommodating cavity and is immersed in the electrolyte.
3. The electro-hydraulic composite forming device for the flexible multipoint mold of the plate material as claimed in claim 2, wherein the fixing device is matched with the top end face of the side wall of the discharge cavity to fix the plate material to be processed.
4. The electro-hydraulic compound forming device for the flexible multipoint mould of the plate according to claim 3, wherein a sealing ring is further arranged on the top end face of the side wall of the discharge cavity, and the sealing ring is located between the plate to be processed and the top end face of the side wall.
5. The electro-hydraulic composite forming device for the flexible multipoint mould of the plate material as claimed in claim 1, wherein the mould device comprises a plurality of groups of support units arranged in a matrix, each support unit comprises a driving assembly and a pressure head assembly, and the driving assembly is connected with the pressure head assembly and used for driving the pressure head assembly to move.
6. The electro-hydraulic composite forming device for the flexible multipoint mould of the plate material as claimed in claim 5, wherein the driving assembly comprises a cylinder and a piston rod; the pressure head subassembly includes movable support rod, fixed plate and pressure head, the piston rod with movable support rod connects, the fixed plate set firmly in movable support rod deviates from the one end of piston rod, the pressure head with the fixed plate is connected.
7. The electro-hydraulic composite forming device for the flexible multi-point die of the sheet material as claimed in claim 6, wherein the pressing head is connected with the fixing plate through a ball head structure, so that the pressing head can rotate relative to the fixing plate.
8. The electro-hydraulic composite forming device for the flexible multipoint die of the plate material as claimed in claim 5, wherein the die device further comprises an elastic cushion, and the elastic cushion is arranged between the pressure head assembly and the plate material to be processed.
9. The electro-hydraulic composite forming device for the flexible multipoint mold of the plate material as claimed in claim 3, wherein the fixing device comprises a driving unit and a pressing unit, the driving unit is connected with the pressing unit and used for driving the pressing unit to move so as to be far away from or close to the top end face of the side wall of the discharge cavity.
10. The electro-hydraulic composite forming device for the flexible multipoint mold of the plate according to claim 9, wherein the driving unit comprises a cylinder and a piston rod, the pressing unit comprises a pressing plate and a pressing support rod, the piston rod is connected with the pressing support rod, the pressing support rod is connected with the pressing plate, and the pressing plate is of an annular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160200.8U CN217141970U (en) | 2021-12-14 | 2021-12-14 | Flexible multipoint mould electrohydraulic composite forming equipment for plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123160200.8U CN217141970U (en) | 2021-12-14 | 2021-12-14 | Flexible multipoint mould electrohydraulic composite forming equipment for plate |
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| Publication Number | Publication Date |
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| CN217141970U true CN217141970U (en) | 2022-08-09 |
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| CN202123160200.8U Active CN217141970U (en) | 2021-12-14 | 2021-12-14 | Flexible multipoint mould electrohydraulic composite forming equipment for plate |
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| CN (1) | CN217141970U (en) |
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- 2021-12-14 CN CN202123160200.8U patent/CN217141970U/en active Active
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