JP2572276Y2 - Magnetic precision moving device - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, a magnetic circuit is arranged on both sides of a container via a partition wall, and a non-magnetic moving object in the container is supported, for example, by a magnetic force to precisely X-ray a required plane. According to the magnetic precision moving device capable of moving the Y coordinate, a ring-shaped permanent magnet having a plurality of magnetic poles formed on both end surfaces constitutes a magnetic circuit inside and outside the container, so that it can be freely moved and rotated on a plane. The present invention relates to a magnetic precision moving device that can be moved and has high moving accuracy.

[0002]

2. Description of the Related Art For example, when an article in a container cannot be moved by directly grasping the article,
If the object to be moved is a magnetic material, it can be moved by applying a magnetic force to the object.

[0003] A so-called magnetic separator for separating and moving iron chips in a coolant liquid of a machine tool or the like can collect fine chips and move them in a required direction. It cannot be moved.

A magnetic crane can move a heavy object relatively accurately with a powerful electromagnet, but cannot move a non-magnetic material, of course. And it is difficult to move due to friction due to friction, and it is impossible to move accurately.

[0005] A so-called magnetic coupling is known as a device utilizing magnetic force for transmitting a rotational force in a liquid layer and a gas layer, a space having a pressure difference, and the like. Although this magnetic coupling can transmit rotational force, it cannot move an article to a required position due to its rotation axis.

Furthermore, a lotless cylinder, a linear motor, and the like cannot move freely on a plane due to restrictions on a preset cylinder, a magnetic rail, and the like.

[0007]

[Problems to be Solved by the Invention] For example, if it is possible to freely and precisely move the inside of a vacuum container, a chemical solution, or the like that cannot be directly grasped through the partition of the incubator without any restrictions. Although it is very convenient for such use, a precise moving device using magnetic force has not been proposed.

In this invention, for example, instead of the attraction magnet simply attracting the magnet block, the friction between the magnetic circuit and the partition surface is reduced, and the XY coordinate is freely and accurately moved and rotated on a required plane. The purpose of the present invention is to provide a mobile device that can be used.

[0009]

According to the present invention, a magnetic circuit is arranged on both sides of a partition of a container, and a moving object is supported or fixed to the magnetic circuit in the container, and the magnetic circuit outside the container is moved. In the moving device to move the moving object together with the magnetic circuit in the container, the magnetic circuit inside and outside the container through the partition
Composed of a pair of ring-shaped permanent magnets whose main surfaces face each other
And each ring-shaped permanent magnet is
The different magnetic poles are alternately arranged, and the magnetization direction is the opposite direction,
A magnetic precision moving device characterized in that a magnetic circuit is rotatable .

[0010]

The present invention uses a ring-shaped permanent magnet in which a large number of different magnetic poles are alternately arranged as permanent magnets constituting a magnetic circuit inside and outside of the container, so that 360 degrees necessary for free XY coordinate movement can be obtained. In order to exert the same moving torque in the direction, the frictional resistance of the magnet to the partition is small, and excellent mobility, rotation and movement accuracy are obtained.

The magnetic precision moving device according to the present invention can be used on both a vertical surface and a horizontal surface, and can improve the moving accuracy by changing the magnet thickness and the number of magnetic poles according to the thickness of the partition.

In the present invention, a ferrite magnet, an alnico-based magnet, or a rare-earth cobalt-based magnet can be used as the ring-shaped permanent magnet. In particular, R is a resource-rich light rare earth element such as Nd or Pr, and is mainly composed of B and Fe.
Fe-B- showing an extremely high energy product of Oe or more
By using the R-based permanent magnet, the size can be significantly reduced. In addition, a back yoke can be attached to the ring-shaped permanent magnet, which can prevent a magnetic leak from adversely affecting sensors and measuring instruments and reduce the thickness of the magnet to reduce the weight. In particular, since the permanent magnet of the magnetic circuit in the container is exposed to the atmosphere in the container, it is necessary to select a magnet material having improved corrosion resistance, for example, according to the application and the atmosphere.

In the present invention, a method of supporting or fixing an object to be moved to a magnetic circuit in a container is performed by a hook as in the embodiment according to the application and the direction of adsorption, the container, the atmosphere in the container, the object to be moved, and the like. The frictional resistance of the magnet with respect to the partition walls can be reduced by appropriately selecting a configuration such as providing a frictional material or fixing through a connecting member. It is necessary to consider moving objects.

DISCLOSURE OF THE DEVICE BASED ON THE DRAWINGS FIG. 1 illustrates an example in which a magnetic circuit is arranged inside and outside of a container via a ceiling partition of an incubator. The magnetic circuit inside and outside the container is composed of integrated ring-shaped permanent magnets 1 and 2 in which both ends are multipolarly magnetized and alternately arranged with different magnetic poles, and the ring-shaped permanent magnet 2 in the container is a back yoke. 3 is installed,
A hook 4 for supporting a moving object is fixed to this.

[0015] In the above structure, the inside of the container and the outside of the container
The magnetic circuit has a plurality of different magnetic poles alternately arranged in the circumferential direction.
The ring-shaped permanent magnets 1 and 2 are arranged and magnetized in opposite directions, and are attracted to each other via a partition wall 5 .
Cormorant disposed, Tsuri支or ring-shaped permanent magnet in the vessel
In order to move the fixed moving object to the required position,
Move the ring-shaped permanent magnet outside the container that is the magnetic circuit.
When it is done, the opposite magnetic poles that are facing are shifted, and the adjacent magnetic poles
When approaching, repulsive force is generated and different magnetic poles are separated from the repulsive force.
The suction force is balanced and the ring inside the container is
Of the ring-shaped permanent magnet outside the container
Not to follow. That is, the ring-shaped permanent inside and outside the container
The magnet is magnetized in the facing direction and the permanent magnet has many facing surfaces.
Because it is poled, it has the same strong magnetic properties in all directions.
A single moving torque can be obtained , free rotation on a plane and XY
The coordinates can be moved, and the movement accuracy is high. Also one
The other permanent magnet that follows the rotational movement of one permanent magnet
And repulsion generated on each other's pole faces
The friction of the ring-shaped permanent magnet on the partition
Resistance can be reduced, and mobility is significantly improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the structure of FIG. 1, the ring-shaped permanent magnets 1 and 2 have an outer diameter of 80 mm, an inner diameter of 60 mm and a thickness of 20 mm.
The maximum energy product of 20 poles multipole magnetized on the end face is 35
When an MGOe-based Fe-BR permanent magnet was used, when the thickness of the partition walls 5, that is, the magnetic gap was 8 mm, the attractive force was 5800 g, and the ring-shaped permanent magnets 1 and 2 were shifted from each other by 0.5 mm on a plane. The restoring force was 600 g.

When the magnetic gap was 6 mm under the same conditions, the attractive force was 11600 g, and the restoring force when the ring-shaped permanent magnets 1 and 2 were shifted from each other by 0.5 mm on a plane was 1095 g.

[0018]

[Effects of the Invention] The magnetic precision moving device according to the present invention uses a ring-shaped permanent magnet having a plurality of magnetic poles on both end surfaces to form a magnetic circuit inside and outside the container, so that a moving torque is generated uniformly in all directions. In addition, the friction resistance of the permanent magnet against the partition can be reduced, the XY coordinate can be freely moved and rotated on a plane, and the mobility and the movement accuracy are remarkably improved.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view showing an example of a magnetic precision moving device according to the present invention.

[Explanation of symbols]

 1, 2 ring-shaped permanent magnets 3 back yoke 4 hook 5 partition

Claims (1)

(57) [Scope of request for utility model registration] 1. A magnetic circuit is arranged on both sides of a partition of a container, and a moving object is supported or fixed to the magnetic circuit in the container, and the magnetic circuit outside the container is moved by moving the magnetic circuit outside the container. In a moving device that moves an object to be moved ,
A pair of magnetic circuits whose main surfaces are opposed to each other via the partition wall
Consisting of ring-shaped permanent magnets, each ring-shaped permanent magnet
A plurality of different magnetic poles are alternately arranged in the circumferential direction,
A magnetic precision moving apparatus characterized in that the direction of the magnetic circuit is the opposite direction and the magnetic circuit is rotatable .