CN205519852U - Pulsed electromagnetic shearing mechanism - Google Patents
Pulsed electromagnetic shearing mechanism Download PDFInfo
- Publication number
- CN205519852U CN205519852U CN201620351875.0U CN201620351875U CN205519852U CN 205519852 U CN205519852 U CN 205519852U CN 201620351875 U CN201620351875 U CN 201620351875U CN 205519852 U CN205519852 U CN 205519852U
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- upper blade
- driving plate
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- 238000010008 shearing Methods 0.000 title claims abstract description 86
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims description 19
- 230000009347 mechanical transmission Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 14
- 230000003139 buffering effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000007600 charging Methods 0.000 claims description 4
- 238000010278 pulse charging Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 239000002184 metal Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 241000270728 Alligator Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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- Shearing Machines (AREA)
Abstract
The utility model discloses a pulsed electromagnetic shearing mechanism, the device is including last blade, bottom knife and pulse magnetic force generation mechanism, and the bottom knife is used for placing metal work, pulse magnetic force generation mechanism is used for producing pulsed electromagnetic power to the guide card motion down of blade orientation is gone up for driving power drive to this pulsed electromagnetic masterpiece, goes up the blade and accomplishes metal work with the bottom knife cooperation and shear. The utility model discloses the application of extension electromagnetism cutting prevents to appear defects such as turn -up, deckle edge and fold effectively after it finishes to cut the work piece to can reduce the demand to mechanical bearing structure intensity effectively.
Description
Technical Field
The utility model relates to a cut technical field, concretely relates to pulse electromagnetism shearing mechanism.
Background
In the fields of conventional metal cutting, plastic cutting, etc., shears are widely used. During the shearing process, the shearing machine needs to generate a large driving force to push the blade to cut the workpiece. The maximum value of the driving force is also called maximum shearing force and is an important index for measuring the shearing capacity of a shearing machine, and the mechanical structure of the shearing machine is also optimally designed according to the maximum shearing force which can be generated by the shearing machine.
The shear driving force of the existing shearing machine is mostly generated by a motor or manpower and the like firstly, and then is transmitted by a hydraulic device, a mechanical transmission device such as a gear belt chain and the like or a pneumatic device and finally applied to a blade of the shearing machine. The existing shearing machine has the advantages of improving the power of a motor generating primary driving force, improving the pressure amplification factor of a hydraulic device and the like.
The moving speed of the blades of the existing shearing machine is mostly less than 1 meter per second, and certain shearing machines have unreasonable mechanical parameter selection during shearing, for example, the shearing gap between the upper blade and the lower blade is too large, so that the shearing defects of curling, rough edges, wrinkles and the like are easily caused after the workpiece is completely sheared.
The shearing machine adopting electromagnetic force as the driving force of the shearing machine is called as an electromagnetic shearing machine, the existing research on the technology of the electromagnetic shearing machine is still in the exploration stage, and the following aspects are mainly found in all published papers and patents on the electromagnetic shearing machine worldwide:
1. the pulse coil discharges to the metal thin plate, the generated electromagnetic force presses the thin plate to the shearing die, and finally a certain shape is cut on the thin plate. Strictly speaking, this technique belongs to the sheet metal forming technique. When the discharge is too large, it will be completely cut off. The defects of the technology are that the cut object is a metal thin plate, the cut object has high conductivity, and the cut object cannot be cut if the cut object is thicker or replaced by non-conductive materials such as epoxy and the like. Moreover, wrinkles appear at the cut edges and do not meet the process requirements.
2. The electromagnet is electrified to attract the iron core, and the generated electromagnetic force is transmitted to the blade through the piston device to cut the workpiece. The shearing force of the electromagnetic shearing machine comes from the attraction of the iron core by the electromagnet, the iron core is saturated when the magnetic field generated by the electromagnet is increased to a certain degree along with the improvement of the requirement of the shearing force, and the energy utilization rate is greatly reduced, so that the electromagnetic shearing machine can only be applied to the conditions of cutting small-sized workpieces and the like with smaller requirement on the shearing force.
The existing electromagnetic shearing technology is only suitable for shearing small workpieces with small shearing force requirements, but for the field of cutting large workpieces (especially large metal workpieces), such as the cutting of medium and thick steel plates in steel plants, the thickness of the steel plate can reach 50mm, the required shearing force is up to hundreds of tons or even thousands of tons, and the existing electromagnetic shearing technology cannot meet the conditions. The traditional shearing machine using hydraulic pressure as shearing driving force is easy to cause the defects of curling, rough edges, wrinkles and the like after the workpiece is finished due to the reasons that a shearing gap is not suitable and the like.
SUMMERY OF THE UTILITY MODEL
Limitation to current electromagnetism shearing method, the utility model provides a pulse electromagnetism shearing mechanism prevents effectively that the problem of turn-up, deckle edge and fold from appearing after the shearing work piece finishes to can reduce the demand to mechanical bearing structure intensity, be particularly useful for the shearing of heavy gauge metal work piece.
The pulse electromagnetic shearing device comprises an upper blade, a lower blade and a pulse magnetic force generating mechanism, wherein the pulse magnetic force generating mechanism is used for generating pulse electromagnetic force, the pulse electromagnetic force is used as driving force to drive the upper blade to move towards the lower blade, and the upper blade and the lower blade cooperate to complete workpiece shearing.
Furthermore, the pulse magnetic force generation mechanism comprises a pulse power supply, a pulse coil and a driving plate, wherein the pulse power supply is electrically connected with the pulse coil, the pulse coil is tightly attached to the end face of the driving plate, the pulse power supply is used for discharging to the pulse coil, a pulse magnetic field is generated when the pulse coil discharges, the pulse magnetic field generates induced eddy currents on the driving plate, and the induced eddy currents interact with the pulse magnetic field to generate pulse electromagnetic force; or
The pulse magnetic force generating mechanism comprises a pulse power supply, a first pulse coil and a second pulse coil, wherein the pulse power supply is electrically connected with the first pulse coil and the second pulse coil, and the end faces of the two pulse coils are tightly attached; the pulse power supply is used for discharging the two pulse coils; the two pulse coils generate opposite pulse magnetic fields during discharging, and further generate pulse electromagnetic force.
Further, the drive plate or the second pulse coil is connected with the upper blade.
The cutter blade falling buffer structure comprises a base, an initial position fixing structure, a blade falling buffer structure and a longitudinal sliding guide rail, wherein the base is used for supporting a lower blade and the longitudinal sliding guide rail; the longitudinal sliding guide rail is arranged on the base and used for guiding the upper blade in the falling process; the initial position fixing structure is arranged on the longitudinal sliding guide rail and used for fixing the initial position of the driving plate or the second coil to enable the driving plate or the second coil to be tightly attached to the pulse coil before pulse charging, and releasing the driving plate or the second coil after charging is started, and the driving plate or the second coil drives the upper blade to vertically fall along the longitudinal sliding guide rail; the blade falling buffer structure is fixed on the base and located right below the upper blade, and is used for buffering collision between the upper blade and the base.
Furthermore, the driving plate or the second pulse coil is connected with the upper blade, the upper blade is connected with the lower blade through a mechanical transmission mechanism, and the upper blade and the lower blade form a V shape.
Further, the cutter blade falling device further comprises a base, an initial position fixing structure and a blade falling buffering structure, wherein the base is used for supporting the lower blade; the initial position fixing structure is used for fixing the initial position of the driving plate or the second coil, so that the driving plate or the second coil is tightly attached to the pulse coil before pulse charging, the driving plate or the second pulse coil is released after charging is started, and the driving plate drives the upper blade to rotate anticlockwise through the mechanical transmission mechanism; the blade falling buffer structure is fixed on the lower end face of the mechanical transmission mechanism and used for buffering the collision between the upper blade and the base.
The technical effects of the utility model are embodied as follows:
1. the utility model provides a pulse electromagnetism shearing mechanism can expand the application of electromagnetism cutting. The existing electromagnetic shearing technology is generally only suitable for cutting metal materials, and the utility model discloses a pulse electromagnetic shearing method does not have any requirement to the conductivity of material, is suitable for the shearing of any material work piece, and the specially adapted is large-scale metal work piece cuts.
2. The utility model provides a pulse electromagnetism shearing mechanism can improve the shearing quality of work piece. The utility model provides a shear blade's highest speed reaches tens meters per second or is higher, can prevent effectively that defects such as turn-up, deckle edge and fold from appearing after the shearing work piece finishes.
3. The utility model provides a pulse electromagnetism shearing mechanism can reduce the demand to mechanical bearing structure intensity effectively. For the conventional shearing method, the maximum acting force applied to the shearing mechanical support structure is the maximum shearing resistance applied to the blade in the process of cutting into the workpiece. And the utility model discloses an among the punching shear mode, before the work piece was touch to the blade, blade and connection structure had very big kinetic energy, and such kinetic energy is that it receives the effect accelerated motion of pulse electromagnetic force, forms through certain space accumulation. Use the utility model discloses a maximum acting force that shearing machine supporting structure received is the produced maximum pulse electromagnetic force of pulse coil. By setting the discharge parameters of the pulse magnet, the maximum pulse electromagnetic force is much smaller than the maximum shearing resistance, so that the requirement on the mechanical structure strength can be effectively reduced.
Drawings
Fig. 1 is a schematic diagram of the generation of electromagnetic driving force, the mechanical transmission of electromagnetic force and the shearing process of the present invention; fig. 1(a) is a schematic diagram of a process in which a pulse coil discharges to a driving plate to generate electromagnetic force; FIG. 1(b) is a schematic diagram of the process of generating electromagnetic force by discharging two pulse coils with opposite axial magnetic field polarities; fig. 1(c) is a schematic view illustrating a process of transmitting a pulse electromagnetic force to a shearing blade through a mechanical transmission structure; FIG. 1(d) is a schematic diagram of the process of shearing a workpiece by the shear blade driven by electromagnetic force;
fig. 2 is a schematic structural view of a gantry electromagnetic shearing machine of the present invention;
fig. 3 is a schematic structural view of the crocodile-type electromagnetic shearing machine of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
First embodiment
The electromagnetic driving force generation, the mechanical transmission of the electromagnetic force and the shearing process in the pulse electromagnetic shearing device of the present invention are shown in fig. 1, wherein fig. 1(a) and fig. 1(b) illustrate two generation modes of the pulse electromagnetic force.
The impulsive magnetic force generating mechanism shown in fig. 1(a) includes an impulsive power source, an impulse coil 1-1 and a driving plate 1-2. The pulse coil 1-1 is fixed, the pulse coil 1-1 is discharged through a pulse power supply, the pulse coil 1-1 generates a pulse magnetic field, induced eddy current is generated on the driving plate 1-2, the pulse magnetic field and the induced eddy current interact to generate pulse electromagnetic force F, and the driving plate 1-2 is pushed to drive the mechanical transmission structure 1-3 to move.
The pulse magnetic force generating mechanism shown in fig. 1(b) comprises a pulse power supply, a first pulse coil 1-1 and a second pulse coil 1-4, wherein the pulse power supply is electrically connected with the first pulse coil 1-1 and the second pulse coil 1-4, and the end faces of the two pulse coils are tightly attached. The first pulse coil 1-1 is fixed, and the first pulse coil 1-1 and the second pulse coil 1-4 are discharged simultaneously through a pulse power supply, so that the first pulse coil 1-1 and the second pulse coil 1-4 generate pulse magnetic fields with opposite axial polarities, the two pulse coils repel each other to generate pulse electromagnetic force F', and the second pulse coil 1-4 is pushed to drive the mechanical transmission structure 1-3 to move.
Fig. 1(c) shows that the shearing force F (F') is transmitted to the upper blades 1-5 of the shearing machine through the mechanical transmission structures 1-3, wherein the mechanical transmission structures 1-3 of the present invention are of various types, and can be, but not limited to, a guide rail type transmission structure of a gantry type shearing machine, or a lever type transmission structure of an alligator type shearing machine. It should be noted here that the force F (F') is not necessarily the same as the electromagnetic shear force in fig. 1(a) and 1(b) due to the mechanical loss of the mechanical transmission structure 1-3 or the specific magnification.
Fig. 1(d) shows the process of the pulse electromagnetic force F (F') acting on the blades 1-5 of the shearing machine to drive the shearing machine to shear the workpieces 1-7. Wherein 1-9 are edge pressing devices for preventing the workpiece from tilting in the shearing process. 1-6 are the lower blades of the shearing machine and are fixed on the bases 1-8 of the shearing machine.
Second embodiment
Fig. 2 is a schematic structural diagram of a gantry-type electromagnetic shearing machine, which mainly comprises the following components: the device comprises a pulse coil 2-1, a driving plate 2-2, a mechanical transmission structure 2-3, an upper blade 2-4, a lower blade 2-5, a base, an initial position fixing structure 2-7, a blade falling buffering structure 2-8 and an external supporting frame 2-9. Wherein the mechanical transmission structure comprises a driving plate-upper blade connecting device 2-3 and a sliding guide rail 2-6. The driving plate 2-2 is connected with an upper blade 2-4 through a connecting device 2-3, and the upper blade 2-4 is parallel to a lower blade 2-5. Wherein, the base is used for supporting the lower blade and the longitudinal sliding guide rail; longitudinal sliding guides 2-6 are mounted on the base and function to enable the upper blade 2-4 to slide smoothly in the direction of the guides. In order to maximize the use of the pulse electromagnetic force, it is necessary to fix the driving plate 2-2 by the initial position fixing structure 2-7 before the shearing process is started, and to make the end surface of the driving plate 2-2 closely contact the pulse coil 2-1. The drive plate initial position fixing structure 2-7 is a spring buckle, the drive plate is clamped before pulse discharge starts to prevent the drive plate from falling, the buckle is released after the pulse discharge starts to release the drive plate, and the drive plate drives the upper blade to fall together through a connecting device. The blade falling buffer structure is fixed on the base and is positioned right below the upper blade, and the upper blade 2-4 can have a certain speed to continuously fall after the workpiece is sheared, so that the upper blade can directly impact on the base of the shearing machine, and the blade falling buffer structure 2-8 can effectively buffer collision and protect the blade and the base.
Third embodiment
Fig. 3 is a schematic structural diagram of an alligator type electromagnetic shearing machine, which mainly comprises the following components: the device comprises a pulse coil 3-1, a driving plate 3-2, an upper blade 3-3, a lower blade 3-4, a base 3-5, an upper blade arm (mechanical transmission structure) 3-6, an initial position fixing structure 3-7 and a blade falling buffer structure 3-8. The driving plate 3-2 is connected with an upper blade 3-3 through an upper blade arm 3-6, and the upper blade and a lower blade form a V shape. In this structure, the moment arm of the pulse electromagnetic force acting on the drive plate 3-2 to rotate the upper knife arm counterclockwise is smaller than the moment arm of the pulse electromagnetic force acting on the drive plate to rotate the upper knife arm clockwise due to the shearing resistance. The initial position fixing structure 3-7 is a spring buckle for fixing the initial position of the upper knife arm 3-6, so that the driving plate 3-2 is tightly attached to the pulse coil 3-1 before the pulse discharge starts, and the buckle can be released to release the upper knife arm after the discharge starts. Since the upper tool arm 3-6 can continue to fall at a certain speed after the workpiece is sheared, the blade falling buffer structure 3-8 can effectively buffer the collision between the upper tool arm and the base.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The pulse electromagnetic shearing device comprises an upper blade and a lower blade and is characterized by further comprising a pulse magnetic force generating mechanism, wherein the pulse magnetic force generating mechanism is used for generating pulse electromagnetic force, the pulse electromagnetic force is used as driving force to drive the upper blade to move towards the lower blade, and the upper blade and the lower blade cooperate to complete workpiece shearing.
2. The pulsed electromagnetic shearing device according to claim 1, wherein the pulsed magnetic force generating mechanism comprises a pulsed power supply, a pulse coil and a driving plate, the pulsed power supply is electrically connected with the pulse coil, the pulse coil is tightly attached to the end face of the driving plate, the pulsed power supply is used for discharging electricity to the pulse coil, a pulsed magnetic field is generated when the pulse coil discharges electricity, the pulsed magnetic field generates induced eddy currents on the driving plate, and the induced eddy currents interact with the pulsed magnetic field to generate the pulsed electromagnetic force; or,
the pulse magnetic force generating mechanism comprises a pulse power supply, a first pulse coil and a second pulse coil, wherein the pulse power supply is electrically connected with the first pulse coil and the second pulse coil, and the end faces of the two pulse coils are tightly attached; the pulse power supply is used for discharging the two pulse coils; the two pulse coils generate opposite pulse magnetic fields during discharging, and further generate pulse electromagnetic force.
3. A pulsed electromagnetic shearing device as defined in claim 2 wherein said drive plate or second pulse coil is connected to an upper blade.
4. The pulsed electromagnetic shearing device according to claim 3, further comprising a base, an initial position fixing structure, a blade fall buffering structure and a longitudinal sliding guide, wherein the base is used for supporting the lower blade and the longitudinal sliding guide; the longitudinal sliding guide rail is arranged on the base and used for guiding the upper blade in the falling process; the initial position fixing structure is arranged on the longitudinal sliding guide rail and used for fixing the initial position of the driving plate or the second coil to enable the driving plate or the second coil to be tightly attached to the pulse coil before pulse charging, and releasing the driving plate or the second coil after charging is started, and the driving plate or the second coil drives the upper blade to vertically fall along the longitudinal sliding guide rail; the blade falling buffer structure is fixed on the base and located right below the upper blade, and is used for buffering collision between the upper blade and the base.
5. A pulsed electromagnetic shearing device according to claim 2, wherein said drive plate or second pulse coil is connected to an upper blade, the upper blade is connected to a lower blade through a mechanical transmission mechanism, and the upper blade and the lower blade form a V-shape.
6. The pulsed electromagnetic shearing device according to claim 5, further comprising a base for supporting the lower blade, an initial position fixing structure and a blade fall buffering structure; the initial position fixing structure is used for fixing the initial position of the driving plate or the second coil, so that the driving plate or the second coil is tightly attached to the pulse coil before pulse charging, the driving plate or the second pulse coil is released after charging is started, and the driving plate drives the upper blade to rotate anticlockwise through the mechanical transmission mechanism; the blade falling buffer structure is fixed on the lower end face of the mechanical transmission mechanism and used for buffering the collision between the upper blade and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351875.0U CN205519852U (en) | 2016-04-25 | 2016-04-25 | Pulsed electromagnetic shearing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351875.0U CN205519852U (en) | 2016-04-25 | 2016-04-25 | Pulsed electromagnetic shearing mechanism |
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| Publication Number | Publication Date |
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| CN205519852U true CN205519852U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620351875.0U Withdrawn - After Issue CN205519852U (en) | 2016-04-25 | 2016-04-25 | Pulsed electromagnetic shearing mechanism |
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| Country | Link |
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| CN (1) | CN205519852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750614A (en) * | 2016-04-25 | 2016-07-13 | 华中科技大学 | Pulsed electromagnetic shearing method and device |
-
2016
- 2016-04-25 CN CN201620351875.0U patent/CN205519852U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750614A (en) * | 2016-04-25 | 2016-07-13 | 华中科技大学 | Pulsed electromagnetic shearing method and device |
| CN105750614B (en) * | 2016-04-25 | 2018-02-23 | 华中科技大学 | A kind of pulse electromagnetic shear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20180223 |