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Flexible magnetic actuator with multistable nonlinearity

A driver and non-linear technology, applied in the field of magnetic control, can solve the problems of limited development, small deformation, deformation, etc., and achieve the effect of rapid grasping and simple structure

Pending Publication Date: 2022-05-27
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still problems that need to be solved urgently in the application of magnetically soft actuators, such as

Method used

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  • Flexible magnetic actuator with multistable nonlinearity
  • Flexible magnetic actuator with multistable nonlinearity
  • Flexible magnetic actuator with multistable nonlinearity

Examples

Experimental program
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Effect test

Embodiment 1

[0021] combine Figure 1 、 Figure 2 、Figure 3 , the present embodiment provides a flexible magnetic driver having a polystable nonlinearity, comprising an intermediate soft layer 1, a hard layer unit 2, a magnetic particle 3, a liquid metal pathway 4, a metal electrode 5, the intermediate soft layer 1 is connected to the hard layer unit 2, the upper and lower layers of the hard layer unit 2 constitute a hard layer module, a plurality of hard layer modules are designed with gaps, along the middle soft layer 1 length direction of the equal interval arrangement, each layer of hard layer unit 2 on both sides of the interior embedded with magnetic particles 3, magnetic particles 3 symmetrical arrangement about the intermediate soft layer 1 The intermediate soft layer 1 is provided with a liquid metal pathway 4, the liquid metal pathway 4 is equipped with metal electrodes 5 at both ends.

[0022] In the present embodiment, the intermediate soft layer 1 using a low elastic modulus of sili...

Embodiment 2

[0024] combine Figure 3 As shown, on the basis of an embodiment, the present embodiment provides an automatic circuit protection switch, a flexible magnetic driver 6 as a current threshold switch connected to the analog circuit, next to the current threshold switch is provided induction coil 7, the 6517A electrometer 8 and resistance 9 are connected in series with the induction coil 7, using a DC power supply 10 to power the analog circuit.

[0025]In this example, the flexible magnetic driver 6 at both ends of the metal electrode 5 is connected into the circuit, the control circuit as a whole on and off, the induction coil 7 is placed near the current threshold switch, 6517A electrometer 8 collects the current signal to transmit to the CPU, the upper limit of current acquisition is 200mA, and the resistance 9 is connected in series with the induction coil 7, the circuit current size can be monitored in real time, the DC power supply 10 is used, when the current is normal, the swi...

Embodiment 3

[0027] combine Figure 4 On the basis of Example 1, the present embodiment provides a flexible magnetic gripper, the four flexible magnetic drivers 11 without liquid metal pathway 4 are assembled with the induction coil 7 to obtain a magnetic gripper, a DC power supply to the induction coil 7. In this example, four magnetic drives 11 are assembled around the induction coil 7, the magnetic pole arrangement direction is the same, the user controls the DC power supply current direction, the induction coil generates a magnetic field when the reverse current is applied, the magnetic drive is bent outward by the repulsive force to open the state, the induction coil generates a magnetic field when a forward current is applied, the magnetic driver is more attractive, the inward bend is in a grip state, and the magnetic gripper has the characteristics of shape adaptability and rapid grasping.

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Abstract

The invention, which relates to the field of magnetic control, discloses a multistable nonlinear flexible magnetostrictive driver comprising a middle soft layer, a liquid metal conductive path designed inside, electrodes installed at two ends, an upper hard layer, a lower hard layer, gaps designed in the hard layers, and embedded magnetic particles. The flexible magnetic driver provided by the invention solves the problems that the existing magnetic driver needs a large external magnetic field and is small in deformation, has an accurate and stable current threshold in the aspect of a circuit protection switch, is simple in structure, and has the characteristics of shape adaptability and rapid grabbing in the aspect of a flexible magnetic gripper.

Description

Technical field [0001] The present invention belongs to the field of magnetron, in particular a flexible magnetic driver having a polystable nonlinearity. Background [0002] Magnetic soft materials, whose shape can undergo continuous, rapid and reversible changes, have the advantages of fast response and non-contact control, and can be served in scenes that rigid robots cannot achieve, such as curved pipes, human bodies, etc. At present, researchers from various countries have carried out a lot of work around the basic principles of soft magnetic drives, sensor development, intelligent material molding process technology, potential applications and other fields, and have made several breakthroughs. However, there are still urgent problems in the application of magnetic soft drives, such as the need for a large external magnetic field to drive deformation, the amount of deformation is small, etc., which limits its development. Contents of the Invention [0003] Object of the pre...

Claims

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Application Information

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IPC IPC(8): H02N11/00B25J9/10
CPCH02N11/006B25J9/10
Inventor 张文玲祝之森戴可人
Owner NANJING UNIV OF SCI & TECH