An electric permanent magnetic chuck

Abstract

This invention discloses an electro-permanent magnet chuck, belonging to the field of chuck technology. The electro-permanent magnet chuck includes a support base, a top plate above the support base, and several fixed rods circumferentially connected between the support base and the top plate. A lifting ring is located at the top of the top plate. A lifting assembly is located between the support base and the top plate. Several connecting boxes are circumferentially distributed on the outer side of the support base. The connecting boxes and the lifting assembly are connected via an adjusting assembly. Each connecting box has two movably mounted electromagnetic chuck modules at its bottom for contacting the surface of the part to be lifted. A self-adjusting assembly is located between the connecting box and the electromagnetic chuck modules. This chuck features flexible and stable lifting, effective folding, flexible adjustment, automatic adjustment, and the ability to meet the contact requirements of different shaped surfaces of the part to be lifted. It is structurally reliable and simple to use.

Description

Technical Field

[0001] The invention relates to the technical field of suction cups, and in particular to an electric permanent magnetic suction cup. Background Art

[0002] The electric permanent magnetic chuck is a new type of adsorption equipment that combines the electromagnetic principle and the permanent magnetic principle. Its working principle mainly relies on the suction force generated by the permanent magnetic steel, and controls the suction force of the magnetic steel through the excitation coil to realize the switching effect of the suction force. Among them, the electric permanent magnetic chuck is input with power, and under the action of the electromagnetic force of the electromagnet, the permanent magnet is adsorbed on the chuck, thereby realizing the adsorption and positioning of the workpiece. When the workpiece needs to be released, the electromagnetic force can be weakened or eliminated by changing the direction or size of the current, so that the permanent magnet loses its adsorption force on the workpiece and the workpiece is released.

[0003] The existing electric permanent magnetic chuck is usually set as a fixed plane on one side close to the workpiece, and can only adsorb and position workpieces with a flat surface. In actual work, workers often encounter workpieces with irregular surfaces. At this time, the contact area between the electric permanent magnetic chuck with the bottom surface set as a fixed plane and the workpiece with an irregular surface is small, and it is impossible to effectively fit with the surface of the workpiece, so the workpiece cannot be effectively adsorbed, which reduces the stability of the workpiece adsorption and reduces the applicability of the device.

[0004] Therefore, it is necessary to provide an electro-permanent magnetic chuck to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the embodiments of the present invention is to provide an electro-permanent magnetic chuck to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electric permanent magnetic chuck comprises a support seat, a top plate is arranged above the support seat, a plurality of fixing rods are circumferentially connected between the support seat and the top plate, a lifting ring is arranged on the top of the top plate, a plurality of connection boxes are circumferentially distributed on the outer side of the support seat, and two electromagnetic chuck modules for fitting with the surface of a workpiece to be lifted are movably arranged at the bottom of each connection box;

[0008] A lifting assembly, wherein the lifting assembly is arranged between the support seat and the top plate;

[0009] An adjusting assembly, wherein the adjusting assembly is connected between the connection box and the lifting assembly;

[0010] And a self-adjusting component, wherein the self-adjusting component is arranged between the connection box and the electromagnetic chuck module.

[0011] As a further solution of the present invention, the lifting assembly includes:

[0012] Screw rod 1, the screw rod 1 is rotatably arranged between the support seat and the top plate, and gear 2 is installed at one end of the screw rod 1;

[0013] Gear 1, the gear 1 is rotatably disposed between the support seat and the top plate and meshes with gear 2, the gear 1 is connected to the lifting motor;

[0014] A guide cylinder, the guide cylinder is arranged between the support seat and the top plate and sleeved on the outer side of the screw rod, the two ends of the guide cylinder are respectively connected to the support seat and the top plate through brackets, and the guide cylinder is provided with a plurality of guide grooves;

[0015] And a lifting cylinder, the lifting cylinder is slidably arranged on the guide cylinder and slidably cooperates with the guide groove, the inner side of the lifting cylinder is provided with a threaded hole threadedly connected to a screw rod, and the outer side of the lifting cylinder is respectively provided with a plurality of connecting seats in the circumferential direction.

[0016] As a further solution of the present invention, the adjustment component includes:

[0017] Connecting seat 2, wherein the connecting seat 2 is provided in plurality and circumferentially distributed on the supporting seat;

[0018] A connection seat three, the connection seat three is arranged at one end of the connection box close to the support seat and is rotatably connected to the corresponding connection seat two;

[0019] A top box, the top box is mounted on the connection box, and a screw rod 2 is rotatably arranged in the top box;

[0020] A connecting seat four, wherein the connecting seat four is slidably disposed in the top box and is threadedly connected to the screw rod two, and a hinged plate is rotatably connected between the connecting seat four and the connecting seat one;

[0021] And a driving module, wherein the driving module is arranged on the top box and connected with the second screw rod.

[0022] As a further solution of the present invention, the driving module includes:

[0023] A worm, the worm is rotatably arranged on the top box, and one end of the worm is connected to an adjusting motor arranged on the top box;

[0024] and a worm wheel connected to one end of the second screw and meshing with the worm.

[0025] As a further solution of the present invention, the self-adjusting component comprises:

[0026] A mounting plate, two of which are movably arranged inside the connection box, and the mounting plate is fixedly connected to the corresponding electromagnetic chuck module;

[0027] A rotating rod, which is rotatably arranged inside the connection box and between the two mounting plates, and a transmission gear is arranged on the rotating rod;

[0028] Tooth plates, two of which are arranged inside the connection box, the tooth plates are connected to corresponding mounting plates respectively, the two tooth plates are respectively located on both sides of the transmission gear and mesh with the transmission gear respectively;

[0029] And a column, wherein a plurality of columns are provided and symmetrically arranged on the inner top of the connection box, the column passes through the tooth plate, one end of the column close to the electromagnetic suction cup module is connected with a connecting plate, and a spring sleeved on the outer side of the column is connected between the connecting plate and the tooth plate.

[0030] As a further solution of the present invention, the top views of the support base and the top plate are both regular polygons, and the number of the connection boxes is consistent with the number of sides of the top view of the support base.

[0031] As a further solution of the present invention, the surface of the piece to be lifted is one of a plane, a spherical surface, a prism surface, a stepped surface or a conical surface, or a combination of at least two of them.

[0032] As a further solution of the present invention, the lifting cylinder is provided with a plurality of side grooves distributed circumferentially, and the side grooves are slidably matched with the guide cylinder.

[0033] As a further solution of the present invention, the tooth plate is configured as an inverted L-shaped tooth plate.

[0034] As a further solution of the present invention, a distance is provided between the mounting plate and the top end of the connection box.

[0035] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0036] 1. In the present invention, the lifting motor drives the gear 1 to rotate clockwise, the gear 1 drives the screw 1 to rotate by meshing with the gear 2, the screw 1 drives the lifting cylinder downward by threaded connection with the lifting cylinder and sliding cooperation between the lifting cylinder and the guide cylinder, the lifting cylinder pushes the connection box to rotate downward by connecting with the adjustment component, so that the electromagnetic suction cup module is attached to the surface of the part to be lifted, the lifting motor drives the gear 1 to rotate counterclockwise, so that the lifting cylinder is located at the end of the guide cylinder away from the support seat, the device is folded, and has the effects of flexible and stable lifting and effective folding;

[0037] 2. In the present invention, when the electromagnetic suction cup modules on one or two connecting boxes cannot fit with the surface of the part to be lifted, the motor is adjusted to drive the worm to rotate clockwise, and the worm drives the screw 2 to rotate by meshing with the worm wheel. The screw 2 pushes the connecting seat 4 close to the support seat by threaded connection with the connecting seat 4 and sliding cooperation with the top box. Since the length of the hinged plate is fixed and the height of the lifting cylinder is fixed, during the process of the connecting seat 4 approaching the support seat, the connecting seat 4 pushes the connecting box to rotate downward around the connecting seat 2 by cooperating with the top box, so that the corresponding electromagnetic suction cup module fits with the surface of the part to be lifted, thereby improving the practicability of the device. Through the cooperation of the worm and the worm wheel, the self-locking of the screw 2 can be achieved, and the stability of the device is improved, with the effects of flexible adjustment, effective fitting, safe self-locking, and stable and reliable.

[0038] 3. In the present invention, when the electromagnetic suction cup module on one side is in contact with the surface of the part to be lifted and the other electromagnetic suction cup module is not in contact with the surface of the part to be lifted, the connecting box continues to rotate downward around the second connecting seat, and the electromagnetic suction cup module that has been in contact with the surface of the part to be lifted remains in place. The toothed plate corresponding to the electromagnetic suction cup module drives the other electromagnetic suction cup module downward by meshing with the transmission gear and the transmission gear meshing with the other toothed plate. The corresponding spring is compressed or stretched by force, so that the positions of the two electromagnetic suction cup modules are automatically adjusted, which makes it easier for the two electromagnetic suction cup modules to effectively fit the surface of the part to be lifted, improves the stability of the suction cup connection, and has the effects of automatic adjustment, meeting the fitting requirements of surfaces of different shapes of the part to be lifted, and being reliable in structure and simple and practical.

[0039] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a three-dimensional diagram of the electro-permanent magnetic chuck in the embodiment of the invention.

[0041] Figure 2 It is a bottom view of the electric permanent magnetic chuck in the embodiment of the invention.

[0042] Figure 3 It is a schematic diagram of the structure of the lifting assembly in the embodiment of the invention.

[0043] Figure 4 It is a cross-sectional view of the lifting assembly in the embodiment of the invention.

[0044] Figure 5 It is a schematic diagram of the structure of the adjustment component in the embodiment of the invention.

[0045] Figure 6 A cross-sectional view of a connection box in an embodiment of the invention Figure 1 .

[0046] Figure 7 A cross-sectional view of a connection box in an embodiment of the invention Figure 2 .

[0047] Figure 8 It is a cross-sectional view of the guide cylinder in the embodiment of the invention.

[0048] Fig. 9 It is a schematic diagram of the structure of the lifting cylinder in the embodiment of the invention.

[0049] Fig.10 It is a schematic diagram of the operation of the electro-permanent magnetic chuck and the workpiece to be lifted with a flat surface in an embodiment of the invention.

[0050] Fig.11 It is a schematic diagram of the operation of the electro-permanent magnetic chuck and the workpiece to be lifted with a prism-shaped surface in an embodiment of the invention.

[0051] Figure numerals: 1, support seat; 2, top plate; 3, fixing rod; 4, lifting ring; 5, lifting assembly; 501, lifting motor; 502, gear 1; 503, gear 2; 504, screw 1; 505, guide cylinder; 5051, guide groove; 506, lifting cylinder; 5061, threaded hole; 5062, side groove; 507, connecting seat 1; 508, bracket; 6, connecting box; 7, adjustment assembly; 701, connecting seat 2; 702, Connecting seat three; 703, hinged plate; 704, connecting seat four; 705, top box; 706, screw two; 8, electromagnetic suction cup module; 9, driving module; 901, worm; 902, worm wheel; 903, adjusting motor; 10, self-adjusting component; 1001, mounting plate; 1002, tooth plate; 1003, transmission gear; 1004, rotating rod; 1005, column; 1006, connecting plate; 1007, spring; 11, part to be lifted. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0054] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 6 , Figure 7 , Fig.10 and Fig.11An electric permanent magnetic chuck comprises a support seat 1, a top plate 2 is provided above the support seat 1, a plurality of fixing rods 3 are circumferentially connected between the support seat 1 and the top plate 2, a lifting ring 4 is provided on the top of the top plate 2, a lifting assembly 5 is provided between the support seat 1 and the top plate 2, a plurality of connecting boxes 6 are circumferentially distributed on the outer side of the support seat 1, the connecting box 6 and the lifting assembly 5 are connected by an adjusting assembly 7, two electromagnetic chuck modules 8 for fitting with the surface of a piece to be lifted 11 are movably provided at the bottom of each connecting box 6, and a self-adjusting assembly 10 is provided between the connecting box 6 and the electromagnetic chuck module 8.

[0055] In this embodiment, in the initial state, one end of the connection box 6 is away from the support seat 1 and is close to the top plate 2. At this time, the device is in a folded state. When the device needs to be used, the lifting component 5 pushes several connection boxes 6 to rotate downward at the same time by cooperating with the adjustment component 7, so that several electromagnetic suction cup modules 8 can be rotated at the same angle, which is convenient for the electromagnetic suction cup modules 8 to fit the surface of the part to be lifted 11. When the part to be lifted 11 is irregular in shape and the two electromagnetic suction cup modules 8 on one or two connection boxes 6 cannot effectively fit the surface of the part to be lifted 11, the adjustment component 7 provided on the connection box 6 can be used to fine-tune the rotation angle of the connection box 6 so that the two electromagnetic suction cup modules 8 on the connection box 6 can effectively fit the surface of the part to be lifted 11, thereby improving the stability of the device. The self-adjusting component 10 can be used to automatically adjust the height of the two electromagnetic suction cup modules 8 on the same connection box 6 to meet the surface of the part to be lifted 11. The device can meet the fitting requirements of stepped surfaces or wavy surfaces, meet the fitting requirements of irregular-shaped parts 11 to be lifted, improve the applicability of the device, and have stable lifting, multiple adjustments, automatic fitting, meet the fitting requirements of parts 11 to be lifted in different shapes, reliable structure, convenient operation and simple and practical effects. The top views of the support seat 1 and the top plate 2 are both regular polygons, and the number of the connecting boxes 6 is consistent with the number of edges of the top view of the support seat 1. In the present application, the top views of the support seat 1 and the top plate 2 are regular triangles, and the number of the connecting boxes 6 is 3 fixing rods. In addition, the wires connected to the electromagnetic suction cup module 8 are not drawn in the figure, but it does not mean that there are no wires. This is a conventional technology and does not affect the normal operation of the structure in the device, so it will not be repeated. The surface of the part 11 to be lifted is one or a combination of at least two of a plane, a spherical surface, a prism surface, a stepped surface or a conical surface. The electromagnetic suction cup module 8 adopts an electromagnetic suction cup sold on the market, which belongs to the prior art, so it will not be repeated.

[0056] In one embodiment of the present invention, see Figure 1 , Figure 3 , Figure 4 , Figure 8 and Fig. 9The lifting assembly 5 includes a screw rod 504 rotatably arranged between the support seat 1 and the top plate 2, a gear 2 503 is installed at one end of the screw rod 504, a gear 502 meshing with the gear 2 503 is rotatably arranged between the support seat 1 and the top plate 2, the gear 1 502 is connected to the lifting motor 501, a guide cylinder 505 sleeved on the outside of the screw rod 504 is arranged between the support seat 1 and the top plate 2, the two ends of the guide cylinder 505 are respectively connected to the support seat 1 and the top plate 2 through a bracket 508, a plurality of guide grooves 5051 are arranged on the guide cylinder 505, a lifting cylinder 506 slidably matched with the guide groove 5051 is slidably arranged on the guide cylinder 505, a threaded hole 5061 threadedly connected to the screw rod 504 is arranged on the inner side of the lifting cylinder 506, and a plurality of connecting seats 507 are arranged on the outer circumference of the lifting cylinder 506.

[0057] In this embodiment, in the initial state, the lifting cylinder 506 is located at the end of the guide cylinder 505 away from the support seat 1. At this time, the device is in a folded state. When the electromagnetic suction cup module 8 needs to be fitted with the surface of the part to be lifted 11, the lifting motor 501 drives the gear 1 502 to rotate clockwise. The gear 1 502 drives the screw 1 504 to rotate by meshing with the gear 2 503. The screw 1 504 drives the lifting cylinder 506 downward by being threadedly connected to the lifting cylinder 506 and slidingly cooperating with the lifting cylinder 506 and the guide cylinder 505. The lifting cylinder 506 pushes the connecting box 6 to rotate downward by being connected to the adjusting component 7, so that the electromagnetic suction cup module 8 can be fitted with the surface of the part to be lifted 11. When the device needs to be folded, the lifting motor 501 drives the gear 1 502 rotates counterclockwise, gear 1 502 drives screw 1 504 to rotate by meshing with gear 2 503, screw 1 504 drives lifting cylinder 506 upward by threaded connection with lifting cylinder 506 and sliding cooperation with guide cylinder 505, lifting cylinder 506 pushes connecting box 6 to rotate upward by connecting with adjusting component 7, so that lifting cylinder 506 is located at one end of guide cylinder 505 away from supporting seat 1, wherein the guide groove 5051 is circumferentially distributed on the guide cylinder 505, and a plurality of side grooves 5062 are circumferentially distributed on the lifting cylinder 506, and the side grooves 5062 are slidably cooperated with the guide cylinder 505, and the number of connecting seat 1 507 is consistent with the number of connecting boxes 6, thereby driving the corresponding connecting boxes 6 to rotate accordingly.

[0058] In one embodiment of the present invention, see Figure 1 , Figure 5 , Figure 6 and Figure 7The adjustment assembly 7 includes a plurality of connecting seats 701 circumferentially distributed on the support seat 1, a connecting seat 702 rotatably connected to the corresponding connecting seat 701 is provided at one end of the connecting box 6 close to the support seat 1, a top box 705 is installed on the connecting box 6, a screw 706 is rotatably provided in the top box 705, a connecting seat 704 threadedly connected to the screw 706 is slidably provided in the top box 705, a hinged plate 703 is rotatably connected between the connecting seat 704 and the connecting seat 1 507, and a driving module 9 connected to the screw 706 is provided on the top box 705;

[0059] The driving module 9 includes a worm 901 rotatably disposed on the top box 705 , one end of the worm 901 is connected to an adjustment motor 903 disposed on the top box 705 , and one end of the screw 706 is connected to a worm wheel 902 meshing with the worm 901 .

[0060] In this embodiment, in the initial state, the connecting seat four 704 is away from the supporting seat 1, and the lifting assembly 5 drives several connecting boxes 6 to rotate synchronously downward around the connecting seat two 701 by connecting the connecting seat one 507, the hinged plate 703 and the connecting seat four 704. When the electromagnetic suction cup module 8 on one or two connecting boxes 6 cannot fit with the surface of the part to be lifted 11, the adjusting motor 903 drives the worm 901 to rotate clockwise, and the worm 901 drives the screw two 706 to rotate by meshing with the worm wheel 902. The screw two 706 is threadedly connected with the connecting seat four 704 to The connecting seat four 704 and the top box 705 are slidably cooperated to push the connecting seat four 704 close to the support seat 1. Since the length of the hinged plate 703 is fixed and the height of the lifting cylinder 506 is fixed, in the process of the connecting seat four 704 approaching the support seat 1, the connecting seat four 704 pushes the connecting box 6 to rotate downward around the connecting seat two 701 by cooperating with the top box 705, so that the corresponding electromagnetic suction cup module 8 is fitted with the surface of the part to be lifted 11, thereby improving the practicality of the device. Through the cooperation of the worm 901 and the worm wheel 902, the self-locking of the screw two 706 can be achieved, thereby improving the stability of the device.

[0061] In one embodiment of the present invention, see Figure 1 , Figure 6 and Figure 7The self-adjusting component 10 includes two mounting plates 1001 movably arranged inside the connection box 6, the mounting plates 1001 are fixedly connected to the corresponding electromagnetic suction cup modules 8, a rotating rod 1004 located between the two mounting plates 1001 is rotatably arranged inside the connection box 6, a transmission gear 1003 is arranged on the rotating rod 1004, two tooth plates 1002 respectively connected to the corresponding mounting plates 1001 are arranged inside the connection box 6, the two tooth plates 1002 are respectively located on both sides of the transmission gear 1003 and are respectively meshed with the transmission gear 1003, a plurality of columns 1005 penetrating the tooth plates 1002 are symmetrically arranged on the top of the inner side of the connection box 6, a connecting plate 1006 is connected to one end of the column 1005 close to the electromagnetic suction cup module 8, and a spring 1007 sleeved on the outside of the column 1005 is connected between the connecting plate 1006 and the tooth plate 1002.

[0062] In this embodiment, in the initial state, the heights of the electromagnetic suction cup modules 8 located on the same connection box 6 are flush, and the spring 1007 is at its original length. When the electromagnetic suction cup module 8 on one side is in contact with the surface of the part to be lifted 11 and the other electromagnetic suction cup module 8 is not in contact with the surface of the part to be lifted 11, the connection box 6 continues to rotate downward around the connection seat 2 701, and the electromagnetic suction cup module 8 that has been in contact with the surface of the part to be lifted 11 does not move. The gear plate 1002 corresponding to the electromagnetic suction cup module 8 drives the other electromagnetic suction cup module 8 to move downward by meshing with the transmission gear 1003 and the transmission gear 1003 is meshed with the other gear plate 1002, and the corresponding spring 1007 is affected. The force is compressed or stretched to realize automatic adjustment of the positions of the two electromagnetic suction cup modules 8, so that the two electromagnetic suction cup modules 8 can be effectively fitted with the surface of the part to be lifted 11, thereby improving the stability of the suction cup connection. Through the spring 1007, the relative positions of the two electromagnetic suction cup modules 8 can be automatically adjusted when the device is away from the part to be lifted 11, so that the two electromagnetic suction cup modules 8 can be restored to a flush state for subsequent operations, wherein the tooth plate 1002 is set as an inverted L-shaped tooth plate 1002, and a spacing is provided between the mounting plate 1001 and the top of the connecting box 6, which can provide a movable space for the lifting and lowering of the tooth plate 1002, thereby meeting the fitting requirements of surfaces of different heights of the part to be lifted 11.

[0063] Workflow:

[0064] In the initial state, the end of the connection box 6 away from the support seat 1 is close to the top plate 2, and the lifting cylinder 506 is located at the end of the guide cylinder 505 away from the support seat 1. At this time, the device is in a folded state. When the electromagnetic suction cup module 8 needs to be fitted with the surface of the part to be lifted 11, the lifting motor 501 drives the gear 1 502 to rotate clockwise, and the gear 1 502 drives the screw 1 504 to rotate by meshing with the gear 2 503. The screw 1 504 drives the lifting cylinder 506 to move downward by being threadedly connected to the lifting cylinder 506 and slidingly cooperating with the guide cylinder 505. The lifting cylinder 506 pushes the connection box 6 to rotate downward by connecting with the adjustment component 7.

[0065] When the electromagnetic suction cup modules 8 on one or two of the connection boxes 6 cannot fit with the surface of the part to be lifted 11, the motor 903 is adjusted to drive the worm 901 to rotate clockwise, and the worm 901 drives the screw 2 706 to rotate by meshing with the worm wheel 902, and the screw 2 706 is pushed to approach the support seat 1 by threaded connection with the connection seat 4 704 and sliding cooperation between the connection seat 4 704 and the top box 705. Since the length of the hinged plate 703 is fixed and the height of the lifting cylinder 506 is fixed, in the process of the connection seat 4 704 approaching the support seat 1, the connection seat 4 704 pushes the connection box 6 to rotate downward around the connection seat 2 701 by cooperating with the top box 705, so that the corresponding electromagnetic suction cup module 8 fits with the surface of the part to be lifted 11;

[0066] When the electromagnetic suction cup module 8 on one side is in contact with the surface of the part 11 to be lifted and the other electromagnetic suction cup module 8 is not in contact with the surface of the part 11 to be lifted, the connection box 6 continues to rotate downward around the connection seat 2 701, and the electromagnetic suction cup module 8 that has been in contact with the surface of the part 11 to be lifted does not move, and the gear plate 1002 corresponding to the electromagnetic suction cup module 8 drives the other electromagnetic suction cup module 8 to move downward by meshing with the transmission gear 1003 and the transmission gear 1003 is meshed with the other gear plate 1002, and the corresponding spring 1007 is compressed or stretched by force, so that the positions of the two electromagnetic suction cup modules 8 are automatically adjusted, so that the two electromagnetic suction cup modules 8 can be effectively fitted with the surface of the part 11 to be lifted;

[0067] When the device needs to be folded, the lifting motor 501 drives gear 1 502 to rotate counterclockwise, gear 1 502 drives screw 1 504 to rotate by meshing with gear 2 503, screw 1 504 drives the lifting cylinder 506 upward by threaded connection with the lifting cylinder 506 and sliding cooperation between the lifting cylinder 506 and the guide cylinder 505, and the lifting cylinder 506 pushes the connecting box 6 to rotate upward by connecting with the adjusting component 7, so that the lifting cylinder 506 is located at the end of the guide cylinder 505 away from the support seat 1.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric permanent magnetic chuck, comprising a support seat, a top plate is arranged above the support seat, a plurality of fixing rods are circumferentially connected between the support seat and the top plate, a hanging ring is arranged on the top of the top plate, a plurality of connection boxes are circumferentially distributed on the outer side of the support seat, and two electromagnetic chuck modules for fitting with the surface of the workpiece to be lifted are movably arranged at the bottom of each connection box; A lifting assembly, wherein the lifting assembly is arranged between the support seat and the top plate; An adjusting assembly, wherein the adjusting assembly is connected between the connection box and the lifting assembly; and a self-adjusting component, wherein the self-adjusting component is arranged between the connection box and the electromagnetic chuck module; The lifting assembly includes a screw rod 1, which is rotatably arranged between the support seat and the top plate, and a gear 2 is installed at one end of the screw rod 1; a gear 1, which is rotatably arranged between the support seat and the top plate and meshes with the gear 2, and the gear 1 is connected to the lifting motor; a guide cylinder, which is arranged between the support seat and the top plate and sleeved on the outside of the screw rod 1, and the two ends of the guide cylinder are respectively connected to the support seat and the top plate through the bracket, and the guide cylinder is provided with a plurality of guide grooves; and a lifting cylinder, which is slidably arranged on the guide cylinder and slidably cooperates with the guide groove, and a threaded hole is provided on the inner side of the lifting cylinder and is threadedly connected to the screw rod 1, and a plurality of connecting seats 1 are respectively provided on the circumferential side of the outer side of the lifting cylinder; The adjustment assembly includes a connecting seat 2, which is provided with a plurality of connecting seats and circumferentially distributed on the support seat; a connecting seat 3, which is provided at one end of the connecting box close to the support seat and is rotatably connected to the corresponding connecting seat 2; a top box, which is installed on the connecting box, and a screw 2 is rotatably provided in the top box; a connecting seat 4, which is slidably provided in the top box and is threadedly connected to the screw 2, and a hinged plate is rotatably connected between the connecting seat 4 and the connecting seat 1; and a driving module, which is provided on the top box and connected to the screw 2.

2. The electric permanent magnetic chuck according to claim 1, characterized in that: The driving module comprises: A worm, the worm is rotatably arranged on the top box, and one end of the worm is connected to an adjusting motor arranged on the top box; and a worm wheel connected to one end of the second screw and meshing with the worm, the worm being rotatably arranged on the top box, one end of the worm being connected to an adjusting motor arranged on the top box; and a worm wheel connected to one end of the second screw and meshing with the worm 3. The electric permanent magnetic chuck according to claim 1, characterized in that: The self-regulating component comprises: A mounting plate, two of which are movably arranged inside the connection box, and the mounting plate is fixedly connected to the corresponding electromagnetic chuck module; A rotating rod, which is rotatably arranged inside the connection box and between the two mounting plates, and a transmission gear is arranged on the rotating rod; Tooth plates, two of which are arranged inside the connection box, the tooth plates are connected to corresponding mounting plates respectively, the two tooth plates are respectively located on both sides of the transmission gear and mesh with the transmission gear respectively; And a column, wherein a plurality of the columns are symmetrically arranged on the top of the inner side of the connection box, the column passes through the tooth plate, one end of the column close to the electromagnetic suction cup module is connected with a connecting plate, and a spring sleeved on the outer side of the column is connected between the connecting plate and the tooth plate.

4. The electro-permanent magnetic chuck according to claim 1, characterized in that: The top views of the support base and the top plate are both regular polygons, and the number of the connection boxes is consistent with the number of sides of the top view of the support base.

5. The electro-permanent magnetic chuck according to claim 1, characterized in that: The surface of the object to be lifted includes a plane, a prism surface or a stepped surface.

6. The electro-permanent magnetic chuck according to claim 1, characterized in that: The lifting cylinder is provided with a plurality of side grooves distributed circumferentially, and the side grooves are slidably matched with the guide cylinder.

7. The electro-permanent magnetic chuck according to claim 3, characterized in that: The tooth plate is configured as an inverted L-shaped tooth plate.

8. The electro-permanent magnetic chuck according to claim 3, characterized in that: A spacing is provided between the mounting plate and the top end of the connection box.

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