CN110681759A - Universal electromagnetic forming device for plate-tube parts - Google Patents
Universal electromagnetic forming device for plate-tube parts Download PDFInfo
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- CN110681759A CN110681759A CN201910931585.1A CN201910931585A CN110681759A CN 110681759 A CN110681759 A CN 110681759A CN 201910931585 A CN201910931585 A CN 201910931585A CN 110681759 A CN110681759 A CN 110681759A
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- magnetic collector
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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
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a universal electromagnetic forming device for plate and tube parts, which comprises an electromagnetic coil, a conversion magnetic collector and a forming magnetic collector, wherein the conversion magnetic collector and the forming magnetic collector are of an annular structure with a through hole in the center, one end of the conversion magnetic collector is close to the electromagnetic coil, the other end of the conversion magnetic collector is sleeved on the outer side of the forming magnetic collector, a pipe forming hole is formed in the center of the forming magnetic collector, or a plate forming surface is arranged on the lower side of the forming magnetic collector, and the size of the conversion magnetic collector relative to the electromagnetic coil part is larger than the size of the forming magnetic collector close to the pipe forming hole and the plate forming surface part. The discharge coil and the conversion magnetic collector are large in size, and the formed magnetic collector is small in size. Aiming at the forming of flat plates and pipe fittings with different sizes, the structures of a discharge coil and a conversion magnetic collector are not required to be changed, and only the magnetic collector for forming matched with a to-be-deformed area of a part is required to be designed. The magnetic collector for forming has small structural size, simple structure and greatly reduced processing cost.
Description
Technical Field
The invention relates to the technical field of material processing and forming, in particular to a universal electromagnetic forming device for plate-pipe parts.
Background
Electromagnetic pulse forming is a method for processing metal workpieces at high speed by using pulsed magnetic field force, and is one of the key technologies of future manufacturing industry. The research shows that: the material is deformed at high speed under the action of the pulse magnetic field force, and finally the forming performance higher than that of the traditional punching processing is obtained.
The magnetic collector is a common auxiliary accessory in electromagnetic pulse forming and is widely applied to forming of plate pipe parts. By changing the structure of the magnetic collector, the magnetic field generated by the coil can be concentrated in a small area of the part to be deformed, so that the magnetic field in a local space area is greatly enhanced, and the purpose of improving the forming efficiency is achieved.
At present, magnetic collectors for electromagnetic forming are mainly classified into pipe magnetic collectors and flat magnetic collectors. For example: in the literature "study on electromagnetic pulse connection characteristics of aluminum alloy and steel pipe fittings", a pipe fitting magnetic collector is used to realize connection between an aluminum pipe and a steel pipe. In the document of 'simulation of the working principle of a sheet electromagnetic forming magnetic collector and improvement of the structure of the sheet electromagnetic forming magnetic collector', the royal wave adopts a 3D finite element means to analyze the current distribution in a flat magnetic collector and analyzes the influence of the magnetic collectors in different shapes on the distribution of magnetic field force on a sheet. In the literature, "a high-speed collision welding method and experimental research of metal plates based on an electromagnetic pulse technology", dangfeng adopts a flat-plate magnetic collector to realize the welding forming of plates.
Therefore, at present, for the formation of the pipe, the design of the solenoid coil and the pipe magnetic collector structure matched with the size of the pipe is needed. As the size of the tube and the area to be deformed change, the coil and the collector need to be redesigned and machined, resulting in a substantial increase in cost. For sheet forming, along with the change of sheet size and the area to be deformed, the flat spiral coil and the flat magnetic collector need to be redesigned and processed, so that the cost is greatly increased. Also, the conventional pipe and plate magnet collector are formed, and the solenoid coil and the plate spiral coil are not replaceable with each other. Therefore, it is necessary to design respective tooling structures for pipe and plate forming, resulting in an increase in cost.
Disclosure of Invention
The invention aims to provide a general electromagnetic forming device for plate-pipe parts, so as to solve the problems.
In order to achieve the purpose, the invention discloses a universal electromagnetic forming device for plate and tube parts, which comprises an electromagnetic coil, a conversion magnetic collector and a forming magnetic collector, wherein the conversion magnetic collector and the forming magnetic collector are of annular structures with through holes at the centers, one end of the conversion magnetic collector is close to the electromagnetic coil, the other end of the conversion magnetic collector is sleeved outside the forming magnetic collector, a pipe forming hole is formed in the center of the forming magnetic collector, or a plate forming surface is arranged on the lower side of the forming magnetic collector, and the size of the conversion magnetic collector relative to the electromagnetic coil part is larger than the size of the forming magnetic collector close to the pipe forming hole and the plate forming surface part.
Furthermore, the electromagnetic coil and the conversion magnetic collector are of a universal structure, and the forming magnetic collector is detachably mounted in the conversion magnetic collector. Furthermore, the sizes of the pipe forming hole and the plate forming surface are matched with the plate and pipe type part to be formed.
Further, the plate forming surface of the forming magnetic collector extends outwards opposite to the conversion magnetic collector.
Furthermore, the electromagnetic coil is a solenoid coil, and the conversion magnetic collector is annularly sleeved in the solenoid coil.
Furthermore, the electromagnetic coil is a flat spiral coil, and the end face of one side of the conversion magnetic collector is close to the flat spiral coil.
Compared with the prior art, the invention has the advantages that:
1. the electromagnetic coil and the conversion magnetic collector have large sizes, and the formed magnetic collector has small size. The forming magnetic collector is designed for plates and pipe fittings with different sizes without changing the structures of the electromagnetic coil and the conversion magnetic collector and only matched with the to-be-deformed area of the part. The magnetic collector for forming has small structural size, simple structure and greatly reduced processing cost.
2. The pipe fitting and the flat plate forming can share the same discharge coil and the same conversion magnetic collector. The repeated processing of the coil and the magnetic collector is avoided, and the cost is reduced.
3. The traditional plate forming can only use a flat spiral coil and a flat magnetic collector, and the pipe forming can only use a spiral coil and a pipe magnetic collector. Both the tube and the flat plate forming in the present invention can be used with flat plate spiral coil and solenoid coil forming systems. The tool structure required by part forming has a wide selection range, and the processing flexibility is improved.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 is an illustration of a disclosed plate forming system employing solenoid coils (undeformed) in accordance with one embodiment of the present invention;
FIG. 2 is a drawing of a disclosed system for forming a sheet using solenoid coils (after deformation) in accordance with one embodiment of the present invention;
FIG. 3 is a schematic illustration of a disclosed system for forming a tubular member using a solenoid coil (undeformed) in accordance with one embodiment of the present invention;
FIG. 4 is a schematic illustration of a disclosed system for forming a tubular member (after deformation) using a solenoid coil in accordance with one embodiment of the present invention;
FIG. 5 is a schematic illustration of a pipe forming system (undeformed) using a flat spiral coil according to a second embodiment of the present invention;
FIG. 6 is a drawing of a pipe forming system (after deformation) using a flat spiral coil according to a second embodiment of the present invention;
fig. 7 is a schematic diagram of a plate forming system (not deformed) using a flat spiral coil according to a second embodiment of the present invention;
fig. 8 shows a system for forming a plate member using a flat spiral coil (after deformation) according to a second embodiment of the present invention.
Illustration of the drawings:
1. an electromagnetic coil; 2. a conversion magnetic collector; 3. forming a magnetic collector; 4. a pipe fitting; 5. a plate member; 6. forming holes for the pipe fittings; 7. and (5) forming the plate forming surface.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
as shown in fig. 1-4, the embodiment of the present invention discloses a general electromagnetic forming device for plate and tube parts, which includes an electromagnetic coil 1, a conversion magnetic collector 2 and a forming magnetic collector 3, in this embodiment, the electromagnetic coil 1 is a spring-like solenoid coil, the conversion magnetic collector 2 is annularly sleeved in the solenoid coil, the conversion magnetic collector 2 and the forming magnetic collector 3 are in an annular structure with a through hole at the center, one end of the conversion magnetic collector 2 is close to the electromagnetic coil 1, the other end is sleeved outside the forming magnetic collector 3, the center of the forming magnetic collector 3 is provided with a tube forming hole 6, or the lower side of the forming magnetic collector 3 is provided with a plate forming surface 7, the size of the conversion magnetic collector 2 relative to the electromagnetic coil 1 part is larger than the size of the forming magnetic collector 3 close to the tube forming hole 6 and the plate forming surface 7, so that the magnetic field can be sufficiently collected to the tube forming hole 6 or the area near the plate forming surface 7, the molding efficiency is improved.
In this embodiment, solenoid 1 and conversion magnetic collector 2 are the common structure, and shaping magnetic collector 3 removable type installs in conversion magnetic collector 2 to, pipe fitting 4 and 5 shaping of plate can share same solenoid 1 and conversion magnetic collector 2, have avoided solenoid 1 and the reprocess of conversion magnetic collector 2, reduce fashioned cost. Specifically, in order to match with the plate and pipe type parts with machining, the pipe fitting forming hole 6 and the plate forming surface 7 can be designed according to the actual situation, and a quick-release and quick-assembly connecting mode can be adopted, so that the die changing efficiency is improved. In order to provide a suitable clamping or operating space for the plate 5 and also facilitate the forming of a structural member having a certain depth of recess, the plate forming surface 7 of the forming concentrator 2 protrudes toward the outside of the conversion concentrator 2, specifically, extends outward away from the conversion concentrator 3.
Example two:
in this embodiment, as shown in fig. 5 to 8, the electromagnetic coil includes an electromagnetic coil 1, a conversion magnetic collector 2 and a shaping magnetic collector 3, the conversion magnetic collector 2 and the shaping magnetic collector 3 are in a ring structure with a through hole at the center, wherein the electromagnetic coil 1 is a flat spiral coil similar to a coiled mosquito coil, and an end face of an upper end of the conversion magnetic collector 2 is close to the flat spiral coil, so that the pipe 4 and the plate 5 can be shaped without changing the structures of the electromagnetic coil 1 and the conversion magnetic collector 2, thereby enlarging a selection range of a tool structure required for shaping and improving flexibility of processing.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a general electromagnetism forming device of board pipe class part, its characterized in that, includes solenoid (1), conversion magnetic collector (2) and takes shape magnetic collector (3), conversion magnetic collector (2) and take shape magnetic collector (3) are the cyclic annular structure that the center was provided with the through-hole, the one end of conversion magnetic collector (2) to solenoid (1) draws close, and the other end cup joints the outside of taking shape magnetic collector (3), the center of taking shape magnetic collector (3) is provided with a pipe fitting shaping hole (6), perhaps the downside of this taking shape magnetic collector (3) is provided with a plate profiled surface (7), conversion magnetic collector (2) are relative solenoid (1) partial size is greater than take shape magnetic collector (3) are close to the size of pipe fitting shaping hole (6) and plate profiled surface (7) part.
2. The apparatus for the universal electromagnetic forming of plate-tube type parts according to claim 1, wherein the electromagnetic coil (1) and the conversion magnetic collector (2) are of a universal structure, and the forming magnetic collector (3) is detachably mounted in the conversion magnetic collector (2).
3. General purpose electromagnetic forming device for sheet tube like parts according to claim 2, characterized in that the dimensions of the tube forming hole (6) and the sheet forming surface (7) match the sheet tube like part to be formed.
4. General purpose electromagnetic forming device for sheet-and-tube parts, according to claim 3, characterized in that the sheet forming surface (7) of the forming concentrator (3) extends outwards, facing away from the conversion concentrator (2).
5. The general electromagnetic forming device for the plate-tube parts according to any one of claims 1-4, wherein the electromagnetic coil (1) is a solenoid coil, and the conversion magnetic collector (2) is annularly sleeved in the solenoid coil.
6. A general electromagnetic forming device for plate-tube parts according to any one of claims 1-4, wherein the electromagnetic coil (1) is a flat spiral coil, and the end surface of one side of the conversion magnetic collector (2) is close to the flat spiral coil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910931585.1A CN110681759B (en) | 2019-09-29 | 2019-09-29 | Universal electromagnetic forming device for plate-tube parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910931585.1A CN110681759B (en) | 2019-09-29 | 2019-09-29 | Universal electromagnetic forming device for plate-tube parts |
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| CN110681759A true CN110681759A (en) | 2020-01-14 |
| CN110681759B CN110681759B (en) | 2021-07-13 |
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| CN201910931585.1A Active CN110681759B (en) | 2019-09-29 | 2019-09-29 | Universal electromagnetic forming device for plate-tube parts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317594A (en) * | 2020-11-20 | 2021-02-05 | 福州大学 | Magnetic collector for pipe electromagnetic pulse forming |
| CN113245431A (en) * | 2021-06-15 | 2021-08-13 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Magnetic collector and electromagnetic pulse forming device |
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| CN106944527A (en) * | 2017-04-01 | 2017-07-14 | 三峡大学 | A kind of pipe forming device and method based on electromagnetic attraction |
| CN206731895U (en) * | 2017-05-02 | 2017-12-12 | 三峡大学 | A kind of device for improving electro-magnetic forming workpiece patch mould |
| CN208195342U (en) * | 2018-04-02 | 2018-12-07 | 三峡大学 | A kind of Aluminum Alloy Tube staggeredly deforms electromagnetic connector |
| CN109807449A (en) * | 2019-01-18 | 2019-05-28 | 重庆科技学院 | A kind of electromagnetic pulse welding combination of sets chinaware |
| CN109865760A (en) * | 2018-12-19 | 2019-06-11 | 华中科技大学 | A kind of electromagnetic forming device and method based on modularization collection chinaware |
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2019
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Patent Citations (6)
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| KR101504478B1 (en) * | 2013-09-12 | 2015-03-20 | 한국기계연구원 | hole flange forming device and method using electromagnetic pressure |
| CN106944527A (en) * | 2017-04-01 | 2017-07-14 | 三峡大学 | A kind of pipe forming device and method based on electromagnetic attraction |
| CN206731895U (en) * | 2017-05-02 | 2017-12-12 | 三峡大学 | A kind of device for improving electro-magnetic forming workpiece patch mould |
| CN208195342U (en) * | 2018-04-02 | 2018-12-07 | 三峡大学 | A kind of Aluminum Alloy Tube staggeredly deforms electromagnetic connector |
| CN109865760A (en) * | 2018-12-19 | 2019-06-11 | 华中科技大学 | A kind of electromagnetic forming device and method based on modularization collection chinaware |
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| CN112317594A (en) * | 2020-11-20 | 2021-02-05 | 福州大学 | Magnetic collector for pipe electromagnetic pulse forming |
| CN113245431A (en) * | 2021-06-15 | 2021-08-13 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Magnetic collector and electromagnetic pulse forming device |
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| CN110681759B (en) | 2021-07-13 |
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