Modularized integrated intelligent electric permanent magnetic chuck

Abstract

The modular integrated intelligent electric permanent magnetic chuck comprises an upper shell, an electric permanent magnet, a circuit board and a lower shell, the circuit board is fixed in the lower shell, a plurality of electro-permanent magnets are uniformly arranged on the outer surface of the lower shell along the circumferential direction, the electro-permanent magnets are positioned through the lower shell and clamped by the upper shell, a plurality of pairs of bulges and pits are uniformly arranged on the outer surface of the upper shell along the circumferential direction, the upper shell is fixedly connected with the lower shell, and the control circuit board is used for supplying power to the electro-permanent magnets. According to the modular integrated design, the connection stability is enhanced, and mutual inductance communication and orientation perception can be realized.

Description

Technical Field

[0001] The invention relates to a suction cup, in particular to a modular integrated intelligent electro-permanent magnetic suction cup. Background Art

[0002] As an innovative magnetic fixture, the electric permanent magnetic chuck technology has been applied in many industries such as machining, mold manufacturing, metallurgy, etc. This chuck combines the continuous suction of the permanent magnet and the controllability of the electromagnet, which not only achieves the characteristics of energy saving, safety, and easy operation, but is also favored for its strong magnetic force and high precision.

[0003] However, the functions of existing permanent magnetic chucks are relatively simple, mainly focusing on providing stable suction. In the context of the growing demand for automation and intelligence in modern industry, these chucks are limited in terms of versatility, intelligence, and the ability to work in coordination with other equipment.

[0004] Specifically, the electro-permanent magnetic chucks in the prior art generally lack effective communication and energy management functions. In addition, the existing chucks often ignore the shear resistance and connection stability in structural design, which may become a performance bottleneck in high-load or complex operating environments. Summary of the invention

[0005] The present invention provides a modular integrated intelligent permanent magnetic chuck to overcome the existing technology. The permanent magnetic chuck has the efficient holding function of the traditional chuck and can also integrate functions such as communication, perception and energy sharing. The design breaks through the functional limits of the traditional chuck. By designing the magnet control circuit and the rectifier circuit on the circuit board, the mutual inductance communication and power supply interconnection between the chucks are realized, which greatly improves the flexibility and energy efficiency of the operation.

[0006] The modular integrated intelligent electro-permanent magnetic chuck comprises an upper shell, an electro-permanent magnet, a circuit board and a lower shell; the circuit board is fixed in the lower shell, and a plurality of electro-permanent magnets are evenly arranged circumferentially on the outer surface of the lower shell. The electro-permanent magnets are positioned by the lower shell and clamped by the upper shell. A plurality of pairs of protrusions and pits are evenly arranged circumferentially on the outer surface of the upper shell. The upper shell and the lower shell are fixedly connected, and the control circuit board is used to supply power to the electro-permanent magnets.

[0007] Each electropermanent magnet comprises a winding group, a NdFeB magnetic rod and an AlNiCo magnetic rod; the NdFeB magnetic rod and the AlNiCo magnetic rod are of equal length and arranged in parallel, the two magnetic poles are fixed at both ends of the NdFeB magnetic rod and the AlNiCo magnetic rod, and the winding group is arranged on the outside of the NdFeB magnetic rod and the AlNiCo magnetic rod.

[0008] The magnetic pole of each electropermanent magnet is connected to the power bus of the control circuit board through a spring contact, and each magnetic pole includes a first semi-cylindrical member and a second semi-cylindrical member; the first semi-cylindrical member and the second semi-cylindrical member are axially fixedly connected to form an integral member, the radius of the semi-circular surface of the first semi-cylindrical member is greater than the radius of the semi-circular surface of the second semi-cylindrical member, and the side plane of the first semi-cylindrical member is fixedly connected to the neodymium iron boron magnet rod and the aluminum nickel cobalt magnet rod.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. Enhanced connection stability: Through the design of protrusions and pits on the upper shell, the suction cup has higher shear resistance at the connection, ensuring connection stability and reliability under high load or complex operating conditions.

[0011] 2. Modular integrated design: The electric permanent magnetic chuck of the present invention not only provides a strong holding force, but also the integrated design enables the chuck to adapt to more complex industrial application scenarios, thus improving the flexibility and intelligence level of the operation.

[0012] 3. Energy-saving and efficient operation mode: The electric permanent magnetic suction cup of the present invention only consumes energy when switching states. Once the state is determined, no additional power is required to maintain it. Compared with the suction cups in the prior art that require continuous power supply, it significantly reduces energy consumption and achieves energy-saving and efficient operation.

[0013] 4. Fast response switching mechanism: The present invention can achieve fast switching of states within 1 millisecond. This fast response feature provides higher efficiency and better adaptability for precision machining and automated production lines.

[0014] 5. Intelligent communication and collaborative working capabilities: Utilizing the principle of electromagnetic induction, the suction cups of the present invention can achieve mutual communication and orientation perception, providing a technical basis for realizing intelligent collaborative working between the suction cups.

[0015] 6. Structural design that is easy to maintain and upgrade: The modular design of the circuit board and electro-permanent magnet facilitates maintenance and upgrades, extending the service life of the product while also reducing long-term operating costs.

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the electric permanent magnetic chuck of the present invention;

[0018] Figure 2 It is a partial cross-sectional view of the electric permanent magnetic chuck of the present invention;

[0019] Figure 3 It is a plan view of the lower shell of the present invention;

[0020] Figure 4 is a cross-sectional view of an electropermanent magnet of the present invention;

[0021] Figure 5 Schematic diagram of the magnetic poles of the electropermanent magnet of the present invention. DETAILED DESCRIPTION

[0022] The embodiments of the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings. Unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0023] Figure 1-Figure 3 A modular integrated intelligent electro-permanent magnetic chuck is shown, comprising an upper shell 1, an electro-permanent magnet 2, a circuit board 3 and a lower shell 4; the circuit board 3 is fixed in the lower shell 4, and a plurality of electro-permanent magnets 2 are evenly arranged circumferentially on the outer surface of the lower shell 4, the electro-permanent magnets 2 are positioned by the lower shell 4 and clamped by the upper shell 1, a plurality of pairs of protrusions 11 and pits 12 are evenly arranged circumferentially on the outer surface of the upper shell 1, the upper shell 1 and the lower shell 4 are fixedly connected, and the control circuit board 3 is used to supply power to the electro-permanent magnets 2.

[0024] Reference Figure 4-Figure 5 Each electropermanent magnet 2 includes a winding group A1, a NdFeB magnetic rod A2 and an AlNiCo magnetic rod A3; the NdFeB magnetic rod A2 and the AlNiCo magnetic rod A3 are of equal length and arranged in parallel, the two magnetic poles A4 are fixed at both ends of the NdFeB magnetic rod A2 and the AlNiCo magnetic rod A3, and the winding group A1 is arranged on the outside of the NdFeB magnetic rod A2 and the AlNiCo magnetic rod A3.

[0025] The electro-permanent magnets A are evenly arranged in a ring in the direction of uniform polarity of the magnetic poles A4; and the magnetic poles A4 of the electro-permanent magnets A all pass through a surface of the lower shell 4.

[0026] The circuit board 3 is integrated with a magnet control circuit for supplying power to the electropermanent magnet 2 and for sending a positive or reverse pulse current to a drive signal input terminal of the electropermanent magnet 2 according to a connection or disconnection control signal.

[0027] A rectifier circuit is integrated on the circuit board 3, one end of the rectifier circuit is connected to an external DC power supply, and the other end of the rectifier circuit is respectively connected to the magnetic poles of the electropermanent magnet 2. Optionally, the external DC power supply adopts a 6V or 20V power supply.

[0028] The magnetic pole A4 of each electropermanent magnet 2 is connected to the power bus of the control circuit board B through a spring contact, and each magnetic pole A4 includes a first semi-cylindrical member A41 and a second semi-cylindrical member A42; the first semi-cylindrical member A41 and the second semi-cylindrical member A42 are axially fixedly connected to form an integral part, the radius of the semicircular surface of the first semi-cylindrical member A41 is greater than the radius of the semicircular surface of the second semi-cylindrical member A42, and the side plane of the first semi-cylindrical member A41 is fixedly connected to the neodymium iron boron magnet bar A2 and the aluminum nickel cobalt magnet bar A3.

[0029] Based on the above implementation scheme: the following examples are listed:

[0030] The circuit board 3 is fixed in the lower shell 4 by screws. Twelve electro-permanent magnets 2 are centrally symmetrically arranged on the outer side of the lower shell 4. The electro-permanent magnets 2 are positioned by the lower shell 4 and clamped by the upper shell 1.

[0031] The outer surface of the upper shell 1 is also symmetrically distributed with four groups of protrusions 11 and pits 12 to improve the shear resistance of the connection. Since the electropermanent magnets 2 are all symmetrically distributed, the suction cup can be connected in any of 12 directions. The electropermanent magnet 2 is composed of a middle neodymium iron boron magnetic rod, an aluminum nickel cobalt magnetic rod, a copper coil on the periphery of the magnetic rod, and pure iron material poles at both ends of the magnetic rod. The electropermanent magnet 2 consumes energy only when switching the switch state, and then the magnet state will be maintained; and the state switching can be achieved within 1ms, so the connection mechanism has the advantages of energy saving and rapid response.

[0032] Between the two opposing suction cups, mutual communication and orientation perception can be achieved by relying on the principle of electromagnetic induction.

[0033] The circuit board 3 includes a magnet control circuit and a rectifier circuit. The rectifier circuit enables the two suction cups to communicate with each other and share energy in any 12 connection positions.

[0034] Can be made into: Weight: about 0.2Kg;

[0035] Size: diameter 120mm, height 20mm;

[0036] Tensile strength: about 300N.

[0037] Based on the working process of the above embodiment:

[0038] 1. Assembling the permanent magnetic chuck: First, evenly distribute the 12 permanent magnets 2 at the central symmetrical position of the lower shell 4, and ensure that each permanent magnet 2 is accurately positioned by the positioning structure of the lower shell 4. Then, fix the circuit board 3 on the lower shell 4, and ensure the stability of the circuit board 3 by screws or welding.

[0039] 2. Install the upper shell: Place the upper shell 1 on top of the lower shell 4, and ensure that the protrusions 11 and the pits 12 on the upper shell 1 are aligned with the corresponding structures on the lower shell 4 to achieve structural clamping. The protrusions and pits symmetrically distributed in the center of the upper shell 1 not only improve the shear resistance of the connection, but also enhance the stability of the overall structure.

[0040] 3. Circuit board component configuration: The magnet control circuit and the rectifier circuit are installed on the circuit board 3. The magnet control circuit is responsible for controlling the switching state of the electropermanent magnet 2, while the rectifier circuit ensures that power supply interconnection and energy sharing are achieved in any 12 connection positions.

[0041] 4. Realization of communication and perception functions: Using the electromagnetic induction principle between two opposite suction cups, a communication module and a perception module are configured to realize mutual induction communication and orientation perception. This can be achieved by integrating sensors and communication chips on the circuit board 3 of each suction cup.

[0042] 5. Testing and Optimization: After assembly, a series of tests are carried out, including suction test, state switching speed test, communication and perception function test, etc., to ensure that all functions meet the design requirements. The suction cup is adjusted and optimized as necessary according to the test results.

[0043] Application scenario: The electric permanent magnetic chuck of the present application is applied to an automated production line, and is operated through the control circuit on the circuit board 3 to achieve rapid and accurate handling and positioning of materials. At the same time, through intelligent communication and sensing systems, multiple chucks can work together to improve the efficiency and intelligence level of the entire production line.

[0044] The present invention has been disclosed as above with preferred implementation cases, but it is not used to limit the present invention. Any technician familiar with the profession can make slight changes or modifications to equivalent implementation cases with equivalent changes by using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention, which still fall within the scope of the technical solution of the present invention.

Claims

1. Modular integrated intelligent electric permanent magnetic chuck, characterized by: The invention comprises an upper shell (1), an electropermanent magnet (2), a circuit board (3) and a lower shell (4); the circuit board (3) is fixed in the lower shell (4); a plurality of electropermanent magnets (2) are evenly arranged along the circumference on the outer surface of the lower shell (4); the electropermanent magnets (2) are positioned by the lower shell (4) and clamped by the upper shell (1); a plurality of pairs of protrusions (11) and recesses (12) are evenly arranged along the circumference on the outer surface of the upper shell (1); the upper shell (1) and the lower shell (4) are fixedly connected; and the control circuit board (3) is used to supply power to the electropermanent magnets (2).

2. According to claim 1, the modular integrated intelligent electric permanent magnetic chuck is characterized in that: Each electropermanent magnet (2) comprises a winding group (A1), a neodymium iron boron magnetic rod (A2) and an alnico magnetic rod (A3); the neodymium iron boron magnetic rod (A2) and the alnico magnetic rod (A3) are of equal length and arranged in parallel, the two magnetic poles (A4) are fixed at both ends of the neodymium iron boron magnetic rod (A2) and the alnico magnetic rod (A3), and the winding group (A1) is arranged on the outside of the neodymium iron boron magnetic rod (A2) and the alnico magnetic rod (A3).

3. According to claim 1, the modular integrated intelligent electric permanent magnetic chuck is characterized in that: A magnet control circuit is integrated on the circuit board (3) for supplying power to the electropermanent magnet (2) and for sending a positive or reverse pulse current to a drive signal input terminal of the electropermanent magnet (2) according to a connection or disconnection control signal.

4. According to claim 1, the modular integrated intelligent electric permanent magnetic chuck is characterized in that: A rectifier circuit is integrated on the circuit board (3), one end of the rectifier circuit is connected to an external DC power supply, and the other end of the rectifier circuit is respectively connected to the magnetic poles of the electropermanent magnet (2).

5. According to claim 1, the modular integrated intelligent electric permanent magnetic chuck is characterized in that: The external DC power supply uses a 6V or 20V power supply.

6. According to claim 2, the modular integrated intelligent electric permanent magnetic chuck is characterized in that: The magnetic pole (A4) of each electropermanent magnet (2) is connected to the power bus of the circuit board (3) through a spring contact, and each magnetic pole (A4) comprises a first semi-cylindrical member (A41) and a second semi-cylindrical member (A42); the first semi-cylindrical member (A41) and the second semi-cylindrical member (A42) are axially fixedly connected to form an integral member, the radius of the semi-circular surface of the first semi-cylindrical member (A41) is greater than the radius of the semi-circular surface of the second semi-cylindrical member (A42); the side plane of the first semi-cylindrical member (A41) is fixedly connected to the neodymium iron boron magnetic rod (A2) and the aluminum nickel cobalt magnetic rod (A3).

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