JPH05228760A - Multi-spindle table - Google Patents

Abstract

PURPOSE:To rotate a table provided on a spherical body which is operated by the magnetic action with a stator, in a multiple spindle condition. CONSTITUTION:A spherical body 7 having a table is provided in an operable manner in a spherical body receiving hole 2 provided in a housing 1 having a stator, and multiple spindle rotational operation of the table 10 is achieved by rotating the spherical body in the multiple spindle direction by the magnetic action.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-spindle table, and more particularly to a novel improvement for rotating a multi-spindle table provided on a sphere that operates by magnetic action with a stator.

[0002]

2. Description of the Related Art There are various rotary table devices of this type that have been conventionally used, but an index table device is generally employed. Although no reference to the index table device is given here, the drive device including a motor for one axis and a gear device is used to angle the rotary table to achieve positioning of the work or the like on the rotary table. Was there.

[0003]

Since the conventional rotary table device is constructed as described above, there are the following problems. That is, since the drive device using the motor only rotates in the uniaxial direction, it can only perform the angulation of the rotary table by the uniaxial rotation. Therefore, it is impossible to tilt the rotary table after the angle is set.

The present invention has been made to solve the above problems, and in particular, a multi-axis rotating table provided on a spherical body that operates by magnetic action with a stator is used. It is intended to provide an axis table.

[0005]

A multi-axis table according to the present invention has a first shaft mounted on a housing and having a first shaft winding.
A shaft stator and a second shaft stator which is provided in the housing and has a longitudinal direction different from that of the first shaft stator and has a second shaft winding, and a ball receiving hole formed in the housing. This is a configuration including a sphere facing each of the stators, and a table provided on the sphere.

[0006] More specifically, the above-mentioned right is forcibly supplied into the spherical hole.

More specifically, the inner surface of each stator is bent along the outer surface of the supply member.

[0008]

In the multi-axis table according to the present invention, since the sphere having the table is operably provided in the housing having the stator, the sphere can be formed by selectively applying a drive signal to each winding of each stator. It is possible to rotate the sphere in a multi-axis state by the magnetic action of the stator and the stator. Therefore, the rotation of the table can be set in the multi-axis state, and the multi-axis table positioning can be freely obtained, which is impossible in the conventional single-axis rotary table.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a multi-axis table according to the present invention will be described in detail below with reference to the drawings. 1 and 2
Shows a multi-axis table according to the present invention, FIG. 1 is a sectional view, and FIG. 2 is an exploded perspective view of a main part.

In the figure, the reference numeral 1 indicates a spherical receiving hole 2 having a substantially box shape as a whole and a substantially spherical shape at the center thereof.
As shown in FIG. 2, a pair of first shaft stators 4 each having a first shaft winding 3 are arranged opposite to each other at a peripheral position of the housing 1. Further, in the housing 1, a pair of second shaft stators 6 each having a second shaft winding 5 are arranged at positions 90 degrees out of phase with the respective first shaft stators 4. The stators 4 and 6 are configured such that their longitudinal directions are orthogonal to each other and different from each other.

Inner surfaces 4a, 6a of the respective stators 4, 6
Is bent along an outer surface 7a of a sphere 7 operably provided in the sphere receiving hole 2 by using the sphere as a bearing hole,
The spherical receiving hole 2 and the outer surface 7a form a spherical shape.

Each of the stators 4 and 6 is formed in a peripheral edge of the housing 1 and is provided in a holding hole 8 that communicates with the spherical body receiving hole 2, and the stators 4 and 6 are also provided.
The windings 3 and 5 of 6 are located in a recess 8a formed continuously with the holding holes 8. Therefore, the outer portions 4b and 6b of the stators 4 and 6 are formed flush with the outer portion 1a of the housing 1, and the outer portions 4b and 6b form the outer surface shape of the housing 1.

A table 10 is integrally provided on the upper portion of the sphere 7 via a neck portion 9.
Zero is normally held in the horizontal position.

The spherical body 7 has a function of a rotor made of semi-hard magnetic steel so as to have a function of a hysteresis ring, and utilizes the phase difference between the magnetic flux density and the magnetic field strength with each of the stators 4 and 6. The sphere 7 and the stators 4 and 6 constitute a known hysteresis motor.

Next, description will be given of a case where the table 10 is actually rotated in a multiaxial manner in the above-mentioned structure.
By applying a drive signal to each first shaft winding 3 of each first shaft stator 4, the spherical body 7 can be rotated in the direction of the arrow θ, and further, each second shaft stator 6 of each second shaft stator 6 can be rotated. By applying a drive signal to the biaxial winding 5, the sphere 7 is rotated and tilted in the direction indicated by the arrow ψ, and the table 10 is rotated.
Can be rotated in a tilted state. In the above-mentioned embodiment, the case where the hysteresis motor is constituted by the spherical body 7 and the respective stators 4 and 6 has been described, but another type of motor can be used by changing the magnetization of the spherical body 7. Further, an angle detector required for the hysteresis motor is omitted in the drawing, and when air is supplied between the spherical body receiving hole 2 and the spherical body 7, friction during rotation of the spherical body 7 can be reduced.

[0016]

Since the multi-axis table according to the present invention is constructed as described above, the following effects can be obtained. That is, since the sphere having the table is rotated in the multi-axis direction by using the magnetic action to operate, the rotation of the table can be achieved in the multi-axis direction, and a complicated and expensive mechanism as in the past can be achieved. A multi-axis table can be easily obtained without using it.

[Brief description of drawings]

FIG. 1 is a sectional view showing a multi-axis table according to the present invention.

FIG. 2 is an exploded perspective view showing a main part of FIG.

[Explanation of symbols]

 1 Housing 2 Sphere Receiving Hole 3 First Axis Winding 4 First Axis Stator 5 Second Axis Winding 6 Second Axis Stator 7 Sphere 10 Table

Claims (3)

[Claims] 1. A winding wire for a first shaft provided in a housing (1)
A first shaft stator (4) having (3), and the housing
A second shaft stator (6) provided in (1) and having a longitudinal direction different from that of the first shaft stator (4) and having a second shaft winding (5), and formed in the housing (1). Ball receiving hole (2)
And a sphere (7) provided on each of the stators (4, 6) facing each other,
A table (10) provided on the upper part of the sphere (7), and by applying a drive signal to each of the windings (3, 5), the table (10) is moved in the multiaxial direction via the sphere (7). A multi-axis table characterized by being operated to. 2. The multi-axis table according to claim 1, wherein air is forcibly supplied into the spherical body receiving hole (2). 3. The inner surface of each stator (4, 6) is the spherical body.
The multi-axis table according to claim 1 or 2, wherein the multi-axis table is bent along the outer surface (7a) of (7).