JPH01122845A - Conveyance device - Google Patents

Abstract

PURPOSE:To enable positioning of a work in a complete non-contact state, by providing a position control part which controls a position by movement in all directions and rotation of a floating magnetic field generating part. CONSTITUTION:When a work 1 conveyed by a conveyance passage 2 is conveyed to a given position, a floating force is exerted on the work 1 by means of the magnetic field of a permanent magnet 9 positioned below the work 1 and the work 1, simultaneously, is positioned to the central part of the permanent magnet 9. With this state, in a state to hold the work 1 by means of a position control part 10, the work 1 is conveyed on the permanent magnet 9 in a displaced position like a position shown by 1-(B) by means of a position control part 10. Even when the work floats in this state, the work 1 can be controlled for positioning to an arbitrary position by means of a position control part 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a conveying device that conveys a plate-like object (hereinafter referred to as a work) in a completely non-contact manner.

[Conventional technology]

2. Description of the Related Art Conventionally, there is a conveyance device that floats a workpiece on a conveyance path and conveys the workpiece in a non-contact manner.

3 and 4 are a perspective view and a plan view of a conventional conveying device disclosed in, for example, Japanese Patent Application Laid-Open No. 61-270843. In these figures, ■ is a workpiece, and this workpiece 1 has a notch portion 1a that is partially cut away. Reference numeral 2 denotes a conveyance path, and at both ends there are guides 3a, 3b for guiding the workpiece 1 when it is conveyed, and stopper bins 4a, 4b that stop the conveyance of the workpiece l and determine the stopping position of the notch 1a of the workpiece 1. is a protruding part. Further, in the conveyance path 2, there is a conveyance air blowing hole 5 for blowing out air that generates a propulsive force for simultaneously levitating the workpiece 1 and conveying it;
A large number of rotational air blowing holes 6 are formed to blow out air that generates rotational force to the workpiece 1. Further, a floating air blowing hole 7 for floating the workpiece 1 is formed in the center of the rotating air blowing hole 66.

The conventional conveyance device configured as described above floats the workpiece 1 by several millimeters by air blown out from the conveyance air blowing hole 5 of the conveyance path 2, and at the same time conveys the workpiece 1 in the direction of the arrow X in the figure. When the conveyed workpiece 1 hits the stopper pins 4a and 4b and the conveyance is stopped, the workpiece 1 is kept floating for several millimeters by the air blown out from the floating air blowing hole 7, and the workpiece 1 is kept floating by several millimeters, and the rotational air blowing hole The workpiece 1 is rotated in the direction of arrow Y in the figure by the air blown out from the stopper pin 4.
The notch portion 1a is positioned without contacting the portions a and 4b.

[Problem that the invention seeks to solve]

Since the conventional conveying device is configured as described above, in order to position the workpiece at a predetermined position, in addition to the conveyance air blowing hole for conveying the workpiece, there are also a rotating air blowing hole and a floating air blowing hole. It was necessary to set up In addition, the workpiece tends to come into contact with the guiding guide during positioning, and in particular, the workpiece is positioned while contacting the stopper pin, making it possible to position the workpiece in a predetermined position completely without contact. The problem was that there was no.

This invention was made in order to solve the above-mentioned problems, and aims to provide a conveying device that can position a workpiece completely without contact by eliminating the need for positioning the workpiece using air. .

[Means for solving problems]

A conveyance device according to the present invention is a conveyance device that positions a workpiece floated on a conveyance path in a completely non-contact manner. A levitation magnetic field generation section that generates magnetic flux in the vertical direction to levitate a workpiece on which superconductor material is formed, and a position whose position is controlled by moving and rotating this levitation magnetic field generation section in the vertical, horizontal, and front-back directions. It consists of a control section.

[For production]

The levitation magnetic field generation section in this invention levitates the workpiece by applying magnetic flux to a superconductor material formed on the workpiece, and controls the position of the levitation magnetic field generation section at a set position by the position control section. to any set position completely without contact.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIGS. 1 and 2 are a perspective view and a plan view showing an embodiment of a conveying device according to the present invention. In the figure, 1 is a workpiece, and 2 is a conveyance path. A thin film 8 of a high temperature superconductor material is adhered to the surface of the workpiece 1 on the transport path 2 side. The conveyance path 2 is formed into a flat plate shape, and includes a permanent magnet 9 which is a levitation magnetic field generating section that generates magnetic flux in a direction perpendicular to the conveyance path 2 to levitate the workpiece 1 at a position where the workpiece 1 is positioned. This permanent magnet 9 is placed up and down (direction of arrow Z in the figure), left and right (direction of arrow Y in the figure), and front and back (direction of arrow X in the figure).
A position control section 10 is provided that controls the position by moving and rotating in the direction (in the direction of arrow θ in the figure). Position control section 1
The permanent magnet 9 placed on the workpiece 1 has a frame shape similar to the shape of the workpiece 1 and is slightly larger than the workpiece 1, and has a magnetic force that levitates the workpiece 1, so that the workpiece 1 is always kept as a permanent magnet. The floating blade is provided so as to be in a stable state at the center of 9 [position 1-(A) in Fig. 2].

Next, the operation of this embodiment described above will be explained with reference to the drawings.

In the conveyance device of the embodiment configured as described above, when the workpiece 1 conveyed on the conveyance path 2 reaches a predetermined position, a floating blade is applied to the workpiece 1 by the magnetic field of the permanent magnet 9 located below the workpiece 1. At the same time, the workpiece 1 is located at the center of the permanent magnet 9. While maintaining this state, the position control unit 10
Even if the workpiece 1 is held by the position controller 10 and transported onto the permanent magnet 9 at a shifted position like the position 1-(B) in FIG. 2, and then levitated in that state. , it is possible to control the positioning of the work l to an arbitrary position by the position control unit 10.

The conveyance device of this embodiment described above has been described with the position control section 10 provided on the conveyance path 2. However, if the conveyance path 2 itself has a position control function similar to that of the position control section 10, a new There is no need to provide the position control section 10. Also,
Permanent magnet 9 serves as a levitation magnetic field generator for levitating the workpiece 1
However, it goes without saying that the same effect can be achieved by using an electric magnet (coil).

〔Effect of the invention〕

As described above, according to the present invention, the levitation magnetic field generation section applies magnetic flux to the superconductor material formed on the workpiece to levitate the workpiece, and the position control section positions the levitation magnetic field generation section at a set position. Since the control is configured, it is no longer necessary to position the workpiece by air, there is no need to provide a stopper pin, and the workpiece can be positioned completely without contact.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of a conveying device according to the present invention;
FIG. 2 is a plan view of the conveying device of this embodiment, FIG. 3 is a perspective view of the conventional conveying device, and FIG. 4 is a plan view of the conventional conveying device. 1 is a workpiece (object to be transported), 2 is a transport path, 8 is a thin film of high temperature superconductor material (superconductor material), 9 is a permanent magnet (levitation magnetic field generating section), and 10 is a position control section. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Daikun Masu11 (and 2 others) Figure 1 Figure 5 Figure 4

Claims (1)

[Claims] In a conveying device that levitates and conveys a conveyed object on a conveying path, a superconductor material is formed on the surface of the conveyed object on the conveying path side, and a magnetic flux is generated in a direction perpendicular to the conveying path. A levitation magnetic field generation section that levitates a conveyed object formed of a superconductor material, and a position control section that controls the position of the levitation magnetic field generation section by moving and rotating the levitation magnetic field generation section in the vertical, horizontal, and front-back directions. A conveying device characterized by the following.