CN115990641B - Beast claw-like electric control permanent magnet clamping mechanism and flexible stretch forming machine - Google Patents
Beast claw-like electric control permanent magnet clamping mechanism and flexible stretch forming machine Download PDFInfo
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- CN115990641B CN115990641B CN202211601273.2A CN202211601273A CN115990641B CN 115990641 B CN115990641 B CN 115990641B CN 202211601273 A CN202211601273 A CN 202211601273A CN 115990641 B CN115990641 B CN 115990641B
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Abstract
The invention discloses an animal claw-like electric control permanent magnet clamping mechanism and a flexible stretch forming machine, and relates to the technical field of machining. The device comprises an animal claw-like electric control permanent magnet clamping mechanism and a flexible stretch forming machine, wherein the electric control permanent magnet clamping mechanism comprises a clamping frame, a plurality of elastic recovery structures are arranged between the inner walls of the top and the bottom of the clamping frame, and clamping plates are fixedly connected to opposite sides of the elastic recovery structures. The invention can not realize the block clamping of the plate by the hydraulic cylinder, so the plate clamping is performed by adopting the electric control permanent magnet technology capable of independently controlling the magnetic pole units, the hydraulic servo control system is simplified, and the manufacturing cost of the stretch forming machine is reduced. Meanwhile, the magnitude of magnetic induction intensity is adjusted by changing the magnitude of exciting current of the aluminum-cobalt-nickel reversible permanent magnet, so that the magnitude of clamping force of the clamp is accurately controlled, and the generation of the stretch-break defect is prevented.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an electric control permanent magnet clamping mechanism for a beast claw and a flexible stretch forming machine.
Background
Conventional stretch forming machines are generally classified into transverse stretch forming machines and longitudinal stretch forming machines. When in stretch forming, tensile stress and tensile strain are generated on the inner layer and the outer layer of the plate along the stretching direction, so that the rebound amount of the workpiece after plastic deformation is reduced.
In the prior art, the technical schemes disclosed from an initial plate stretch forming machine (CN 200910067003.6) to a four-degree-of-freedom series-parallel multi-head flexible stretch forming machine (CN 204052501U) and the like realize the self-coordination of the flexible clamp to the change of the mold surface, improve the strain distribution during the forming of a workpiece and improve the forming quality of the workpiece.
However, after the plate is clamped by the clamp of the stretch forming machine, under the cooperation of the stretch forming die, the single clamp clamps the plate to generate longitudinal synchronous stretching, so that the defect of no die sticking is easily generated when the skin piece with larger curvature is formed, and the high-precision and large-curvature skin piece forming cannot be satisfied. In addition, the existing common broaching machine adopts a multi-branch multi-shaft hydraulic servo control system, two or three large-displacement hydraulic cylinders are needed at one point, and each clamp needs a small-stroke hydraulic cylinder, so that the number of the needed hydraulic cylinders is large, the structure is complex, the control is inconvenient, and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide an electric-controlled permanent magnet clamping mechanism for a beast claw and a flexible stretch forming machine, which ensure the reliability and flexibility of movement of the beast claw according to a biological model of block stress of falling feet and toes of the sole of a running animal, so that the electric-controlled permanent magnet clamping mechanism for the beast claw and the flexible stretch forming machine are provided, and the clamping blocks inspired by front and rear toes of the beast claw exert the same discrete stress effect as the front and rear toes, thereby solving the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatically controlled permanent magnetism clamping mechanism of imitative animal claw, includes automatically controlled permanent magnetism clamping mechanism, automatically controlled permanent magnetism clamping mechanism includes the clamp work or material rest, be provided with a plurality of elasticity between clamp work or material rest top and the bottom inner wall and reply the structure, two elasticity reply the equal fixedly connected with clamp flitch of structure opposite side, be located the top the clamp flitch bottom is provided with and is connected with elasticity and reply the structure and presss from both sides the material piece, is located the clamp flitch top of bottom and installs the automatically controlled permanent magnetism clamping piece that is connected with the elasticity that is located the bottom and reply the structure, automatically controlled permanent magnetism clamping piece, the inside magnetic pole unit that is provided with of automatically controlled permanent magnetism clamping piece is mutually adapted with the ferromagnetic clamping piece.
Furthermore, the same elastic recovery structure is arranged on the inner wall of the top of the electric control permanent magnet clamping mechanism, the electric control permanent magnet clamping blocks comprise front toe electric control permanent magnet clamping blocks and rear toe electric control permanent magnet clamping blocks, the top area of the rear toe electric control permanent magnet clamping blocks is larger than that of the front toe electric control permanent magnet clamping blocks, the number of the front toe electric control permanent magnet clamping blocks is four, and the rear toe electric control permanent magnet clamping blocks are arranged on one side of the rear toe electric control permanent magnet clamping blocks by taking the rear toe electric control permanent magnet clamping blocks as the center.
Furthermore, the magnetic pole units are arranged in the front toe electric control permanent magnetic clamping block and the rear toe electric control permanent magnetic clamping block, 1-3 magnetic pole units are arranged in the front toe electric control permanent magnetic clamping block, and 3-5 magnetic pole units are arranged in the rear toe electric control permanent magnetic clamping block.
Still further, elasticity is replied the structure and is including the movable rod, and the outer wall middle part of movable rod is provided with the arch, the protruding department fixedly connected with extension spring of movable rod outer wall, extension spring's the other end with press from both sides the top or bottom inner wall of work or material rest and be connected, press from both sides flitch joint in the protruding department of movable rod outer wall, the one end that the movable rod kept away from extension spring has the bulb through the screw fixation, and the bottom of bulb runs through and presss from both sides the flitch and be connected with ferromagnetic clamp piece or automatically controlled permanent magnetism clamp piece through the screw.
Furthermore, the magnetic pole unit comprises an alnico reversible permanent magnet arranged inside the electric control permanent magnet clamping block, the top of the alnico reversible permanent magnet is fixedly connected with a magnetic yoke, neodymium iron boron permanent magnets are arranged between the magnetic yokes and at the positions of the two sides of the magnetic yoke, and epoxy resin is filled on the outer wall of the magnetic pole unit inside the electric control permanent magnet clamping block.
The flexible stretch forming machine comprises a frame, wherein the material pulling mechanisms are respectively arranged on the inner walls of the two sides of the frame, the movable ends of the material pulling mechanisms are rotationally provided with the material pulling mechanisms of the animal claw-like electric control permanent magnet, the material pulling mechanisms comprise horizontal hydraulic cylinders and vertical hydraulic cylinders which are perpendicular to each other, the movable ends of the horizontal hydraulic cylinders and the vertical hydraulic cylinders are connected with the hinge mechanisms in a public way, and the other ends of the horizontal hydraulic cylinders and the vertical hydraulic cylinders are respectively rotationally connected to the inner walls of the side face and the bottom face of the frame.
Furthermore, an inclined hydraulic cylinder is arranged at the position between the horizontal hydraulic cylinder and the vertical hydraulic cylinder, one end of the inclined hydraulic cylinder is connected with the hinging mechanism, and the other end of the inclined hydraulic cylinder is rotatably connected to the joint of the inner wall of the bottom of the frame and the inner wall of the side face.
Compared with the prior art, the invention has the beneficial effects that:
compared with the traditional drawing machine, the animal claw-like electric control permanent magnet clamping mechanism and the flexible drawing machine can not realize block clamping of the plate through the hydraulic cylinder, so that the plate is clamped by adopting an electric control permanent magnet technology capable of independently controlling the magnetic pole units, a hydraulic servo control system is simplified, and the manufacturing cost of the drawing machine is reduced. Meanwhile, the magnitude of magnetic induction intensity is adjusted by changing the magnitude of exciting current of the aluminum-cobalt-nickel reversible permanent magnet, so that the magnitude of clamping force of the clamp is accurately controlled, and the generation of the stretch-break defect is prevented.
The invention simulates the expansion and contraction of the toes of the animal claw, enables the clamping blocks to move up and down through the elastic recovery structure, is convenient for clamping and unloading the plate in the stretch-forming process, discretizes the whole clamping blocks, enables the discrete clamping blocks to swing within a certain range through the spherical hinge, increases the degree of freedom of clamp plate forming through the interaction of the electric control permanent magnet clamping blocks and the electromagnet clamping blocks, improves the shape radian conformity after skin stretch-forming, effectively improves the stretch-forming of the large-curvature workpiece, enables the distribution of the tensile stress and the tensile strain of the stretch-forming workpiece to be more uniform, reduces the process allowance of the stretch-forming workpiece, and improves the forming quality.
Drawings
FIG. 1 (a) is a schematic diagram of a double-cylinder material pulling mechanism;
FIG. 1 (b) is a schematic diagram of a three-cylinder material pulling mechanism according to the present invention;
FIG. 2 is a schematic diagram of an imitation tiger claw electric control permanent magnet clamping mechanism of the invention;
fig. 3 (a) is a schematic structural diagram of an imitation tiger claw electric control permanent magnet clamping mechanism of the present invention;
FIG. 3 (b) is an enlarged schematic view of the structure of FIG. 3 (a) according to the present invention;
FIG. 3 (c) is an enlarged schematic view of the structure of FIG. 3 (a) at B according to the present invention;
FIG. 4 is a diagram showing the arrangement of the simulated tiger claw electrically controlled permanent magnet clamping plate and the ferromagnetic clamping plate;
fig. 5 (a) is a schematic arrangement diagram of the gecko claw-like electrically controlled permanent magnet clamping plate of the invention;
fig. 5 (b) is a schematic arrangement diagram of the gecko claw ferromagnetic clamping plate according to the present invention.
In the figure: 1. a frame; 2. a horizontal hydraulic cylinder; 3. a vertical hydraulic cylinder; 4. a tilting hydraulic cylinder; 5. a hinge mechanism; 6. the animal claw-like electric control permanent magnet clamping mechanism; 7. a clamping rack; 8. a clamping plate; 9. electric control permanent magnet clamping blocks; 9.1, a front toe electric control permanent magnet clamping block; 9.2, a rear toe electric control permanent magnet clamping block; 10. a ferromagnetic clamp block; 11. an elastic restoring structure; 12. a magnetic pole unit; 12.1, a magnetic yoke; 12.2, a neodymium iron boron permanent magnet; 12.3, an alnico reversible permanent magnet; 12.4, epoxy resin; 13. ball head; 14. a screw; 15. a screw; 16. a moving rod; 17. and (5) stretching the spring.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the invention, the animal claw is used as a model, so that the toe block stress of the clamp when the sole falls to the ground like an animal can be realized, the original integral clamping block is divided into discrete clamping blocks, the block stress of the plate is realized, the fluidity of the plate is improved, meanwhile, the expansion and contraction of the animal claw toe are simulated, the degree of freedom in the stretch forming process of the plate is increased, the plate is easier to be adhered with a film, and the stretch forming quality and the material utilization rate are improved; compared with the flexible stretch forming machine with the existing hydraulic cylinder as a driving device, the block stress of the plate cannot be realized through a single hydraulic cylinder, so that an electric control permanent magnet technology is selected, a hydraulic system of the flexible stretch forming machine can be simplified to reduce the manufacturing cost, meanwhile, leakage of hydraulic oil is avoided, and a friendly working environment is created; the flexible stretch forming machine consists of a frame, a material pulling mechanism, an electromagnetic material clamping mechanism imitating animal claws and a hinging mechanism; the invention only describes an animal claw-like electric control permanent magnet clamping mechanism, which consists of a clamping frame, an electric control permanent magnet clamping block, a ferromagnetic clamping block and an elastic recovery structure.
As shown in fig. 1 (a) -5 (b), the present invention provides a technical solution: an animal claw-like electric control permanent magnet clamping mechanism and a flexible stretch forming machine.
Example 1
The veterinary claw-like electric control permanent magnet clamping mechanism comprises an electric control permanent magnet clamping mechanism 6 and is characterized in that the electric control permanent magnet clamping mechanism 6 comprises a clamping frame 7, a plurality of elastic recovery structures 11 are arranged between the top and the bottom inner walls of the clamping frame 7, clamping plates 8 are fixedly connected to opposite sides of the elastic recovery structures 11, iron magnet clamping blocks 10 connected with the elastic recovery structures 11 are arranged at the bottom of the clamping plates 8 at the top, electric control permanent magnet clamping blocks 9 connected with the elastic recovery structures 11 at the bottom are arranged at the top of the clamping plates 8 at the bottom, magnetic pole units 12 are arranged in the electric control permanent magnet clamping blocks 9 and are mutually matched with the iron magnet clamping blocks 10, the flexible stretch-forming machine comprises a frame 1, pulling mechanisms are respectively arranged on the inner walls of two sides of the frame 1, the electric control permanent magnet clamping mechanism 6 is rotatably arranged on opposite sides of the pulling mechanisms through hinging mechanisms 5, each pulling mechanism comprises a horizontal hydraulic cylinder 2 and a vertical hydraulic cylinder 3, the horizontal hydraulic cylinder 2 and the vertical hydraulic cylinder 3 are connected with the movable cylinder 5 at the other end, and the movable cylinder 5 is rotatably connected with the movable cylinder 1.
As shown in fig. 2, the same electric control permanent magnet clamping mechanism 6 has a plurality of elastic recovery structures 11 on the top inner wall, the electric control permanent magnet clamping blocks 9 comprise front toe electric control permanent magnet clamping blocks 9.1 and rear toe electric control permanent magnet clamping blocks 9.2, the top area of the rear toe electric control permanent magnet clamping blocks 9.2 is larger than the top area of the front toe electric control permanent magnet clamping blocks 9.1, the front toe electric control permanent magnet clamping blocks 9.1 are four, and the rear toe electric control permanent magnet clamping blocks 9.2 are arranged on one side of the rear toe electric control permanent magnet clamping blocks 9.2.
As shown in fig. 4-5 (b), the magnetic pole units 12 are arranged inside the front toe electric control permanent magnetic clamping block 9.1 and the rear toe electric control permanent magnetic clamping block 9.2, the front toe electric control permanent magnetic clamping block 9.1 is provided with 1-3 magnetic pole units 12, and the rear toe electric control permanent magnetic clamping block 9.2 is internally provided with 3-5 magnetic pole units 12.
As shown in fig. 3 (b), the elastic restoring structure 11 includes a moving rod 16, a protrusion is disposed in the middle of an outer wall of the moving rod 16, an extension spring 17 is fixedly connected to the protrusion of the outer wall of the moving rod 16, the other end of the extension spring 17 is connected to the top or bottom inner wall of the clamping frame 7, the clamping plate 8 is clamped at the protrusion of the outer wall of the moving rod 16, one end of the moving rod 16, far away from the extension spring 17, is fixed with a ball head 13 through a screw 15, and the bottom of the ball head 13 penetrates through the clamping plate 8 and is connected to the ferromagnetic clamping block 10 or the electric control permanent magnetic clamping block 9 through a screw 14.
As shown in fig. 3 (c), the magnetic pole unit 12 includes an alnico reversible permanent magnet 12.3 disposed inside the electric control permanent magnet clamping block 9, a yoke 12.1 is fixedly connected to the top of the alnico reversible permanent magnet 12.3, neodymium-iron-boron permanent magnets 12.2 are disposed between the yokes 12.1 and at positions on two sides of the yokes, and epoxy resin is filled on the outer wall of the magnetic pole unit 12 inside the electric control permanent magnet clamping block 9.
The drawing machine comprises a machine frame 1, wherein the inner walls of the two sides of the machine frame 1 are respectively provided with a drawing mechanism, movable ends of the drawing mechanisms are rotatably provided with an electric control permanent magnet clamping mechanism 6 through a hinge mechanism 5, the drawing mechanism comprises a horizontal hydraulic cylinder 2 and a vertical hydraulic cylinder 3 which are perpendicular to each other, movable ends of the horizontal hydraulic cylinder 2 and the vertical hydraulic cylinder 3 are commonly connected with the hinge mechanism 5, and the other ends of the movable ends of the horizontal hydraulic cylinder 2 and the vertical hydraulic cylinder 3 are respectively rotatably connected to the inner walls of the side face and the bottom face of the machine frame 1.
Referring to fig. 1 (a) -1 (b), the flexible stretch forming machine is composed of a frame 1, a row of 5 material pulling mechanisms, an animal claw-like electric control permanent magnet clamping mechanism 6 and a hinge mechanism 5 on the left side and the right side of the frame 1 in the placement state of fig. 1 (a) -1 (b). The material pulling mechanism of the double-cylinder flexible stretch forming machine consists of two hydraulic cylinders respectively, wherein the horizontal hydraulic cylinder 2 is horizontally arranged, and the vertical hydraulic cylinder 3 is vertically arranged. The three-cylinder type flexible stretch forming machine material pulling mechanism is composed of three hydraulic cylinders respectively, wherein the horizontal hydraulic cylinder 2 is horizontally arranged, the vertical hydraulic cylinder 3 is vertically arranged, and the inclined hydraulic cylinder 4 is obliquely arranged. One end of the hydraulic cylinder is hinged with the frame 1, and the other end is connected with the electric control permanent magnet clamping mechanism 6 through the hinging mechanisms 5 and 6. Through changing the hydraulic pressure and the stroke of the hydraulic cylinders, the included angle between the hydraulic cylinders can be changed, so that the position and the stretch-forming direction of the 6 electric control permanent magnet clamping mechanism 6 are changed. The hydraulic pressure of the horizontal, vertical or inclined hydraulic cylinders may be controlled in units of rows. When in drawing, the position and the drawing direction of each 6 electric control permanent magnet clamping mechanism 6 are controlled by controlling the hydraulic pressure and the stroke in the hydraulic cylinder, so that the plate material obtains the optimal drawing position and angle.
Specifically, referring to fig. 1 (a), in the placed state of fig. 1 (a), the horizontal hydraulic cylinder 2 is used for driving the electric control permanent magnet clamping mechanism 6 to move in the horizontal direction, and the vertical hydraulic cylinder 3 is used for driving the electric control permanent magnet clamping mechanism 6 to move in the vertical direction.
The device is used for driving the animal claw-like electric control permanent magnet clamping mechanism 6 to move in a direction of 45 degrees relative to the horizontal direction.
Specifically, the embodiment of the invention provides an imitation tiger claw electric control permanent magnetic clamping mechanism 6 and an imitation gecko claw electric control permanent magnetic clamping mechanism 6, and the invention only describes the imitation tiger claw electromagnetic clamping mechanism.
Fig. 2 is a schematic diagram of an imitation tiger claw electric control permanent magnet clamping plate, which mainly comprises an electric control permanent magnet clamping block 9, an elastic restoring structure 11 and a clamping plate 8, wherein the electric control permanent magnet clamping block 9 respectively serves as 4 front toes 9.1 and 1 rear toe 9.2, so that the block stress of a plate is realized. The clamping plate is fixedly connected with the clamp frame 7 through screws.
Correspondingly, the tiger claw-imitating ferromagnetic clamping plate is different from the tiger claw-imitating electric control permanent magnet clamping plate in that the clamping block part is a ferromagnetic clamping block 10, the ferromagnetic clamping blocks 10 and the electric control permanent magnet clamping blocks 9 are in one-to-one correspondence, and the clamping of the plate is completed by mutual matching.
Fig. 3 (a) -3 (c) are schematic diagrams of an imitation tiger claw electric control permanent magnet clamping mechanism 6 and a local structure enlargement, and mainly comprise a clamping frame 7, a clamping plate 8, an electric control permanent magnet clamping block 9, a ferromagnetic clamping block 10 and an elastic restoring structure 11. The clamping plate 8 is fixedly connected with the clamping frame 7 through screws. Each gripping block is connected to a ball 13 in the elastic return mechanism 11 by means of a screw 15. The two ends of the stretching spring 17 in the elastic restoring structure 11 are respectively hung on the moving rod 16 and the clamping plate 8. When a plate is clamped, after a short pulse current is introduced to a coil on the aluminum cobalt nickel reversible permanent magnet 12.3, the electric control permanent magnet clamping block 9 is provided with magnetic force by the permanent magnet, and the ferromagnetic clamping block 10 and an elastic rebound structure 11 connected with the ferromagnetic clamping block form a closed magnetic circuit with the plate and the ferromagnetic clamping block 10; when the current is lost, the ferromagnetic clamp block 10 stably operates by virtue of its own magnetic circuit. When the load is removed, pulse current which is opposite to magnetization is introduced into the coil in the ferromagnetic clamping block 10, the magnetic induction intensity or polarity of the aluminum-cobalt-nickel reversible permanent magnet 12.3 in the ferromagnetic clamping block 10 is changed, and a magnetic field only forms a closed loop inside the sucker, so that magnetic attraction is not basically displayed to the outside. The tension spring 17 in the elastic restoring structure 11 is elastically restored, thereby controlling the presser to restore to the original initial position.
Specifically, the electric control permanent magnet clamping block 9 is connected with a ball head 13 in the elastic restoring mechanism 11 through a screw, and can swing within a certain range by utilizing the ball hinge mechanism, and a certain included angle is formed within a small-size range of the clamp according to the forming requirement; each electric control permanent magnet clamping block 9 realizes the freedom degree of movement through a movable rod, can realize self-coordinated loading and deformation in the stretch forming process of workpieces with different curvatures, and can be adjusted along with the shape of a die to improve the film sticking rate of the workpieces, realize good forming quality and ensure the profile precision of the workpieces.
Specifically, the discrete electric control permanent magnet clamping blocks 9 can be independently controlled, so that the electric control permanent magnet clamping blocks 9 can clamp the plate in a partitioning manner, and the clamp clamping force is accurately controlled by controlling the magnitude of the pulse current, so that good forming quality is realized.
Accordingly, the positions of the electronically controlled permanent magnet clamp block 9 and the ferromagnetic clamp block 8 in fig. 3 (a) -3 (c) may be changed from each other.
According to the flexible stretch forming machine, in the basic theory of the traditional flexible stretch forming machine, through the inspiration of the animal claw model and simultaneously by adopting the electric control permanent magnet technology capable of being controlled in a partitioning mode, each animal claw-imitating electric control permanent magnet clamping block is independently controlled, the blocking stress of the plate is realized, the fluidity of the plate is improved, meanwhile, the degree of freedom of the plate in the stretch forming process is increased, the tensile stress and the tensile strain of a stretch forming part are distributed more uniformly, the plate is easier to be pasted with a film, and the stretch forming quality and the material utilization rate are improved; by simplifying the hydraulic system of the flexible stretch forming machine, the manufacturing cost is reduced, meanwhile, leakage of hydraulic oil is avoided, and a friendly working environment is created.
Example two
On the basis of the first embodiment, as shown in fig. 1 (b), an inclined hydraulic cylinder 4 is arranged at a position between a horizontal hydraulic cylinder 2 and a vertical hydraulic cylinder 3 for improving a material pulling mechanism, one end of the inclined hydraulic cylinder 4 is connected with a hinge mechanism 5, and the other end is rotatably connected at a joint of the bottom inner wall and the side inner wall of the frame 1.
Specifically, referring to fig. 1 (b), in the placement state of fig. 1 (b), the horizontal hydraulic cylinder 2 is used for driving the electric-controlled permanent-magnet clamping mechanism 6 of the animal claw to move in the horizontal direction, the vertical hydraulic cylinder 3 is used for driving the electric-controlled permanent-magnet clamping mechanism 6 of the animal claw to move in the vertical direction, and the inclined hydraulic cylinder 4 drives the electric-controlled permanent-magnet clamping mechanism 6 of the animal claw to move in the inclined direction.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended embodiments and equivalents thereof.
Claims (5)
1. The utility model provides an automatically controlled permanent magnetism clamping mechanism of animal claw, includes automatically controlled permanent magnetism clamping mechanism (6), its characterized in that automatically controlled permanent magnetism clamping mechanism (6) is including pressing from both sides work or material rest (7), be provided with a plurality of elasticity recovery structure (11) between pressing from both sides work or material rest (7) top and the bottom inner wall, two elasticity recovery structure (11) opposite side all fixedly connected with presss from both sides flitch (8), be located the top presss from both sides flitch (8) bottom and is provided with and is connected with elasticity recovery structure (11) ferromagnetic presss from both sides material piece (10), the automatically controlled permanent magnetism presss from both sides material piece (9) that are connected with elasticity recovery structure (11) that are located the bottom are installed at the top of presss from both sides material plate (8) bottom, automatically controlled permanent magnetism presss from both sides material piece (9) inside be provided with magnetic pole unit (12), with ferromagnetic presss from both sides material piece (10) looks into fit each other;
the plurality of elastic recovery structures (11) are arranged on the inner wall of the top of the same electric control permanent magnet clamping mechanism (6), the electric control permanent magnet clamping blocks (9) comprise front toe electric control permanent magnet clamping blocks (9.1) and rear toe electric control permanent magnet clamping blocks (9.2), the top area of the rear toe electric control permanent magnet clamping blocks (9.2) is larger than that of the front toe electric control permanent magnet clamping blocks (9.1), the four front toe electric control permanent magnet clamping blocks (9.1) are arranged, and the rear toe electric control permanent magnet clamping blocks (9.2) are arranged on one side of the rear toe electric control permanent magnet clamping blocks (9.2) by taking the rear toe electric control permanent magnet clamping blocks (9.2) as the center;
the magnetic pole units (12) are arranged inside the front toe electric control permanent magnet clamping block (9.1) and the rear toe electric control permanent magnet clamping block (9.2), 1-3 magnetic pole units (12) are arranged in the front toe electric control permanent magnet clamping block (9.1), and 3-5 magnetic pole units (12) are arranged inside the rear toe electric control permanent magnet clamping block (9.2).
2. The animal claw-like electric control permanent magnet clamping mechanism according to claim 1, wherein: elastic recovery structure (11) are including movable rod (16), and the outer wall middle part of movable rod (16) is provided with the arch, the protruding department fixedly connected with extension spring (17) of movable rod (16) outer wall, the other end of extension spring (17) with press from both sides the top of work or material rest (7) or bottom inner wall and be connected, press from both sides the protruding department of flitch (8) joint at movable rod (16) outer wall, the one end that movable rod (16) kept away from extension spring (17) is fixed with bulb (13) through screw (15), and the bottom of bulb (13) runs through and presss from both sides flitch (8) and is connected with ferromagnetic clamp piece (10) or automatically controlled permanent magnetism clamp piece (9) through screw (14).
3. The animal claw-like electric control permanent magnet clamping mechanism according to claim 1, wherein: the magnetic pole unit (12) comprises an aluminum nickel cobalt reversible permanent magnet (12.3) arranged inside an electric control permanent magnet clamping block (9), a magnetic yoke (12.1) is fixedly connected to the top of the aluminum nickel cobalt reversible permanent magnet (12.3), neodymium iron boron permanent magnets (12.2) are arranged between the magnetic yokes (12.1) and at the positions of the two sides of the magnetic yokes, and epoxy resin is filled on the outer wall of the magnetic pole unit (12) inside the electric control permanent magnet clamping block (9).
4. A flexible stretch forming machine, which uses the beast claw-like electric control permanent magnet clamping mechanism as set forth in any one of claims 1-3, characterized in that: the automatic feeding device comprises a frame (1), wherein a material pulling mechanism is respectively installed on the inner walls of two sides of the frame (1), a beast claw-imitating electric control permanent magnet clamping mechanism is rotatably installed at the movable end of the material pulling mechanism through a hinge mechanism (5), the material pulling mechanism comprises a horizontal hydraulic cylinder (2) and a vertical hydraulic cylinder (3) which are perpendicular to each other, the movable ends of the horizontal hydraulic cylinder (2) and the vertical hydraulic cylinder (3) are commonly connected with the hinge mechanism (5), and the other ends of the horizontal hydraulic cylinder and the vertical hydraulic cylinder are respectively rotatably connected to the inner walls of the side face and the bottom face of the frame (1).
5. A flexible strander in accordance with claim 4 wherein: the device is characterized in that an inclined hydraulic cylinder (4) is arranged at the position between the horizontal hydraulic cylinder (2) and the vertical hydraulic cylinder (3), one end of the inclined hydraulic cylinder (4) is connected with a hinge mechanism (5), and the other end of the inclined hydraulic cylinder is rotatably connected to the joint of the bottom inner wall and the side inner wall of the frame (1).
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| CN202211601273.2A CN115990641B (en) | 2022-12-13 | 2022-12-13 | Beast claw-like electric control permanent magnet clamping mechanism and flexible stretch forming machine |
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| CN115990641B true CN115990641B (en) | 2023-09-26 |
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| CN115990641A (en) | 2023-04-21 |
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