JPH08155768A - Rotary table equipment - Google Patents

Abstract

PURPOSE: To simplify the wiring structure, to reduce troubles related to the wiring structure, and to dispense with the maintenance. CONSTITUTION: A first table 30 which is rotatable around one axis is provided on a base part 20, a second table 40 which is rotatable around another axis is provided on the first table 30, and a moving means 41 to rotate the second table 40 is arranged on the second table 40. A first transmission part 51 is provided on the base part 20, and a second transmission part 52 is provided on the first table so that the first and second transmission parts 51, 52 may be arranged opposite to each other in a non-contact manner, and the power or the control signal is transmitted to the moving means 41 of the second table 40 through the first transmission part 51 and the second transmission part 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sets a first table rotatable around one axis as a base and a second table rotatable around another axis as a first table,
The present invention relates to a rotary table device having a structure in which moving means for rotating and moving a second table is arranged on the second table, and more particularly to a rotary table suitable for use in a machine tool.

[0002]

2. Description of the Related Art In a conventional rotary table of a five-axis control machine tool, power lines and signal lines of a rotary table servo motor are led from an XY table or column of the machine tool by external wiring. These wires are
It was common to pull the rotary table from above and from the side by wire or handle it with a cable bear.

[0003]

However, such an external wiring is not only complicated in itself, but also has a problem that it is disconnected due to unexpected interference with an obstacle when the table is moved, or a worker is caught. there were.

The present invention aims to simplify the wiring structure,
It is an object of the present invention to provide a boring processing device that reduces troubles related to the wiring structure and does not require maintenance.

[0005]

According to the present invention, a first table (30) rotatable about one axis is set in a base (20), and a second table (40 rotatable about another axis). ) Is set on the first table (30), and moving means (41) for rotating and moving the second table (40) is arranged on the second table (40). First transmission unit (51)
And a second transmission unit (52) is provided on the first table so that the first transmission unit (51) and the second transmission unit (52) face each other in a non-contact manner. The gist of the rotary table device is characterized in that it can transmit electric power and / or control signals to the moving means (41) of the second table (40) via (52).

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a rotary table device 10 according to the present invention. FIG. 2 is a perspective view showing an outline of the rotary table device 10.

The rotary table device 10 includes a base portion 20.
It has. The base 20 can be configured as, for example, an XY table, as in the embodiment of FIG. 3 described later.

A first table 30 is set on the base 20 so as to be rotatable about an axis A. A second table 40 is set on the first table 30 so as to be rotatable about an axis B orthogonal to the axis A.

A hole is formed in the base 20, and a rotary shaft 31 is provided in a fixed relationship therewith. The rotary shaft 31 is set at a right angle to the base plane and serves as the center of rotation of the first table. That is, the center line of the rotating shaft 31 is the axis A
Is consistent with

The first table 30 includes bearings 34 and 3.
It is supported by the rotary shaft 31 via 5. The first table 30 can be rotated by a rotating mechanism 39 described below.

The rotating mechanism 39 is composed of a worm 33, a worm wheel 32, a servo motor (not shown) and a detector. The worm 33 is rotatably supported inside the base 20. Worm wheel 32
Is a ring-shaped member fixed to the lower portion of the first table 30. The worm 33 is connected to the output shaft of the servomotor and is engaged with the worm wheel 32. When the worm 33 is rotated by the servo motor, the first table 30 is rotated around the shaft 31 together with the worm wheel 32.

A rectangular casing is fixed to the upper portion of the first table 30, and a second table 40 is set therein. The second table 40 is rotatable about an axis B that is orthogonal to the axis A. The torque is generated by the servomotor 41 shown in FIG. 2 by the gear train (not shown).
Reported to table 40. The work holder 44 can be detachably set on the second table.

A first transmission section 51 for transmitting power and control signals is provided on the upper end of the rotary shaft 31. First
Above the transmission unit 51, a second transmission unit 51 that cooperates with the first transmission unit 51.
A transmission unit 32 is provided. The first and second transmitters 51,
52 are fixedly provided on the rotary shaft 31 and the first table, respectively. The first transmission unit 31 and the second transmission unit 32 face each other with a predetermined distance in a non-contact manner. The distance between the two is
For example, it can be set to about 1 mm to several tens of mm.

First and second transmission units (both not shown) are connected to the first transmission unit 31 and the second transmission unit 32, respectively. The power line 43 and the signal line 42 for the servo motor are connected to the second transmission unit. The power from the power source and the control signal from the control unit are transmitted to the first transmission unit,
It is configured to be sent to the servomotor and the detector via the first transmission unit 31, the second transmission unit 32, and the second transmission unit. Further, the detection signal from the detector is sent back to the control unit through the reverse path.

The first transmission section 31 and the second transmission section 32 can be constituted by, for example, a non-contact type short circuiter. As the non-contact type short circuiter, those used in other fields can be used as they are. Of course, appropriate changes may be made as necessary. The first transmission unit 51 and the second transmission unit 52 can be configured in various shapes such as a disc shape, a rectangular shape, and a rod shape.

FIG. 3 is a schematic view showing a 5-axis control machining center 1 to which the rotary table device of the present invention is applied.

The machining center 1 has a base 2 on which a column 3 is formed. A spindle head 4 having a spindle 5 is set on the column 3 so as to be movable in the Z direction. A tool changer 6 is arranged above the column 3, and a tool magazine (not shown) is installed next to the tool changer 6.

On the other side of the base 2, a table device 11 for mounting a work is provided so as to face the spindle head 4.
0 is provided. As the table device 110, the rotary table device 10 of the above-described embodiment can be used.

The base portion 20 of the table device 110 is a so-called XY table. That is, the saddle 8 is set so as to be movable in the X direction, and the base portion 20 is provided above the saddle 8 so as to be movable in the Y direction. A cover 60 for avoiding chips is attached to the side of the base portion 20. The structure of the table 110 is substantially the same as the structure of the rotary table device 10 of the embodiment shown in FIGS.

[0021]

Since the rotary table device of the present invention has a simple wiring process, there are few troubles related to the wiring structure and almost no maintenance related to the wiring is required.

The present invention is not limited to the above embodiment. For example, the shape and arrangement of various members can be variously changed within the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a sectional view showing a rotary table device of the present invention.

FIG. 2 is a perspective view showing a rotary table device of the present invention.

FIG. 2 is a side view showing a state in which the rotary table device of the present invention is applied to a 5-axis control machining center.

[Explanation of symbols]

 10 Rotary Table Device 20 Base 30 First Table 31 Rotating Shaft 32 Worm Wheel 33 Worm 39 Rotating Mechanism 40 Second Table 41 Servo Motor 42 Servo Motor Signal Line 43 Servo Motor Power Line 44 Work Holder 51 First Transmission Part 52 Second 2 transmission section 53, 54 wiring 1 5-axis control machining center 110 table device

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[Procedure amendment]

[Submission date] March 16, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a sectional view showing a rotary table device of the present invention.

FIG. 2 is a perspective view showing a rotary table device of the present invention.

FIG. 3 is a side view showing a state in which the rotary table device of the present invention is applied to a 5-axis control machining center.

[Explanation of reference numerals] 10 rotary table device 20 base 30 first table 31 rotating shaft 32 worm wheel 33 worm 39 rotating mechanism 40 second table 41 servo motor 42 servo motor signal line 43 servo motor power line 44 work holder 51 number 1 transmission section 52 2nd transmission section 53, 54 wiring 1 5-axis control machining center 110 table device

Claims (1)

[Claims] 1. A first table (30) rotatable about one axis is set on a base (20), and a second table (40) rotatable about another axis is set on the first table (3).
0) and the moving means (41) for rotating and moving the second table (40) is arranged on the second table (40).
0) is provided with a first transmission unit (51) and a second table is provided on the first table.
A transmission unit (52) is provided so that the first transmission unit (51) and the second transmission unit (52) are opposed to each other without contact, and the second table (51, 52) is used to interpose the second table (51, 52). A rotary table device having a structure capable of transmitting electric power and / or a control signal to the moving means (41) of 40).