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Modified magnetic fluid, holding mechanism and holding device using the modified magnetic fluid

A magnetic fluid and modification technology, applied in the direction of magnetic objects, magnetic materials, inorganic materials, etc., can solve complex calculations and other problems, and achieve the effect of uniform physical properties

Active Publication Date: 2018-06-15
NAT UNIV CORP KYUSHU INST OF TECH (JP) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, complex calculations are required for the selection or replacement of appropriate grippers, the grasping plan of the object based on the selected grippers, and the estimation of the posture of the object from the start of gripping to the completion of gripping. Operation becomes a bottleneck for efficient operations performed by robots

Method used

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  • Modified magnetic fluid, holding mechanism and holding device using the modified magnetic fluid
  • Modified magnetic fluid, holding mechanism and holding device using the modified magnetic fluid
  • Modified magnetic fluid, holding mechanism and holding device using the modified magnetic fluid

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Embodiment Construction

[0044] Next, embodiments that actualize the present invention will be described with reference to the drawings. Such as figure 1 As shown in (A) and (B), the holding mechanism 10 of an embodiment of the present invention has: a bag body 12, which accommodates a modified magnetic fluid 11, and is flexible; and an electromagnet 13, which is arranged in the bag body 12 One side (in this embodiment, the upper side), and a magnetic field is applied to the bag body 12 .

[0045] Such as figure 2 (A), shown in (B), electromagnet 13 has: magnetic pole part 15, and it is made of the magnetic material that is arranged in the center; The material constitutes: a coil 17 wound around the magnetic pole portion 15 ; and a magnetic pole plate portion 15 a provided at an open end of the magnetic pole portion 15 and having a larger diameter than the magnetic pole portion 15 . The bag body 12 is made of an oil-resistant, non-magnetic and flexible rubber sheet or plastic sheet such as silico...

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Abstract

The present invention provides a reformed magnetic fluid (11) which achieves improved holding strength during magnetization by mixing, into a magnetic fluid (27) having a base liquid and ferromagnetic fine particles (25) present in a dispersed state in the base liquid, nonmagnetic powder (26) having a larger size than that of the ferromagnetic fine particle (25) and a smaller specific gravity than that of the ferromagnetic fine particle (25), and a gripping mechanism (10) and a gripping device (30) which use the reformed magnetic fluid (11).

Description

technical field [0001] The present invention relates to a modified magnetic fluid in which fine particles of a ferromagnetic substance are dispersed in a liquid, a modified magnetic fluid, a holding mechanism and a holding device using the modified magnetic fluid. Background technique [0002] As shown in Non-Patent Document 1, there is known a magnetic fluid (MR fluid) composed of a colloidal solution in which ferromagnetic ultrafine particles having a size of 10 nm or several μm are extremely stably dispersed in a liquid as a surfactant or the like. Furthermore, it is disclosed to use the magnetic fluid for dampers, actuators, seals, clutches. In addition, Patent Document 1 discloses a metal powder made of an Fe-based alloy having an average particle size of 0.1 to 25 μm and a maximum particle size of 50 μm or less for use in magnetic fluids, and Patent Document 2 discloses a metal powder containing anions, A magnetic fluid composition comprising dispersed magnetic fine p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/34B25J15/06
CPCB25J15/0608H01F1/445
Inventor 西田健冈谷勇希国本研一
Owner NAT UNIV CORP KYUSHU INST OF TECH (JP)
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