JPH05318377A - Rotating table - Google Patents

Abstract

PURPOSE:To supply electricity and air to a mounted member mounted on a rotating table with the simple and inexpensive structure. CONSTITUTION:A cable 16 is extended to a rotation shaft 2 of a rotating table 3, one end of the cable 16 is connected to a mounted member 15 mounted on the rotating table 3, and the other end of the cable 16 is fixed to a base 1 with giving a predetermined tension to a pulley 13 with a spring. Also, both ends of a hollow part 2a of the rotation shaft is provided with rotatable air joints 17 and 18, and air is supplied to the mounted member 21 through pipes 19 and 20 connected to the air joints 17 and 18, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary table which can easily supply at least one of electricity and air to a sensor, an air valve, a cylinder and the like mounted on the rotary table with a simple structure.

[0002]

2. Description of the Related Art Conventionally, the method shown in FIG. 3 or 4 has been used to supply electricity and air to mounted components such as a sensor, an air valve and a cylinder mounted on a rotary table. That is, the method shown in FIG.
The rotary table 3 is rotatably supported via
The spiral cable whose one end is fixed to the base 1 side and the other end of the spiral tube 4 are connected to a connector 5 provided on the rotary table 3.

In the method shown in FIG. 4, the rotary shaft 2 shown in FIG. 3 is hollow, and the cable and the air tube 6 having one end fixed to the base 1 side are inserted into the hollow shaft 2 and the other end is the rotary table 3. It is connected to the connector 5 provided in the. Reference numeral 7 shown in FIG. 4 is a bearing that rotatably supports the rotating shaft 2 on the base 1.

[0004]

However, according to the conventional method shown in FIG. 3, since the spiral cable and the spiral tube 4 are exposed to the outside, there is a possibility that the cable and the tube 4 interfere with surrounding obstacles. It was

Further, according to the conventional method shown in FIG. 4, there is a drawback that the cable and the air tube 6 are easily twisted and broken by the rotation of the rotary table 3. Further, since the rotary shaft 2 cannot be made thick in many cases, it is difficult to insert the cable and the air tube 6, and there is a problem that workability and maintainability of connection with the connector 5 are poor.

On the other hand, there is a rotary transformer or the like as a means for supplying electricity to the rotary table 3, but since it is expensive, it cannot be used for other than mass-produced products.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a rotary table which can supply electricity and air to a mounting member with a simple and inexpensive structure and can be easily maintained. To aim.

[0008]

According to a first aspect of the present invention, there is provided a turntable 3 which is rotatably supported on a base 1 and has a mounting member 15 to which electricity is supplied from the outside. Straight guide 1 as a guide member on 1
Slider 12 as a moving member that is guided and moved by 1.
And a pulley 13 rotatably supported by the slider 12,
A tension coil spring 14 as a spring member that urges the pulley 13 to move away from the rotary table 3, one end of which is connected to the mounting member 15, and the other end of which is wound around the rotary shaft 2 of the rotary cable 3 and then the pulley. It is characterized in that it is provided with a double-track cable 16 as an electric wire that is drawn out to the outside via 13.

A rotary table according to a second aspect of the present invention has a base 1
In a rotary table 3 on which a mounting member 21 rotatably supported above and to which air is supplied from the outside is mounted, a hollow portion 2a formed so as to penetrate axially in the center of a rotary shaft 2 of the rotary table 3. , Air joints 17, 18 attached to the upper and lower ends of the hollow portion 2a in an airtight and rotatable manner, respectively.
And a first air pipe 19 having one end connected to the lower air joint 18 and the other end fixed to the base 1, and a second air pipe 19 having one end connected to the upper air joint 17 and the other end connected to the mounting member 21. The air pipe 20 of FIG.

According to a third aspect of the present invention, there is provided a rotary table according to the first aspect of the present invention.
Is provided.

[0011]

In the rotary table according to the first aspect, electricity is externally supplied to the mounting member 15 via the double-track cable 16. Since the double-track cable 16 is wound around the rotary shaft 2, the rotary table 3 can freely rotate. Further, since the double-track cable 16 is always pulled in a fixed direction by the tension coil spring 14 via the pulley 13, the slack does not occur.

In the turntable according to the second aspect, the air supplied from the first air pipe 19 is passed through the lower air joint 18, the hollow portion 2a, the upper air joint 17 and the second air pipe 20. It is supplied to the mounting member 21. At this time, the rotation of the rotary shaft 2 is absorbed by the air joints 17 and 18.

In the turntable according to the third aspect, electricity and air can be simultaneously supplied to the mounting member on the turntable 3. Therefore, it becomes possible to control mounting members such as a cylinder.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the rotary table of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention. In these figures, parts corresponding to those of the conventional example shown in FIGS. 3 and 4 are designated by the same reference numerals, and the description thereof will be omitted as appropriate. In FIG. 1, a linear guide 11 is horizontally provided on a base 1 toward a rotary shaft 2 of a rotary table 3, and a slider 12 is mounted on the linear guide 11 so as to be movable in an arrow AA direction. ing. A pulley 13 is rotatably attached to the slider 12 with its axial direction vertical, and a tension coil spring 14 is stretched between the slider 12 and the vertical portion 1a of the base 1.

A mounting member 15 such as a sensor is mounted on the rotary table 3, and one end of a double-wire cable 16 is connected to the mounting member 15. Double track cable 16
Is routed from the outer circumference of the rotary table 3 to the lower surface, wound around the outer circumference of the rotary shaft 2, and further wound around the half circumference of the pulley 12, and the other end is fixed in the base 1.

On the other hand, a hollow portion 2a is formed in the axial direction of the rotary shaft 2, and an upper air joint 17 and a lower air joint 1 are rotatably and airtightly provided at the upper and lower ends of the hollow portion 2a, respectively.
8 is attached. Further, one end of a first air pipe 19 is connected to the lower air joint 18, and the other end is fixed to the base 1. Furthermore, the upper air joint 17 has a second
One end of the air pipe 20 is connected, and the other end is connected to a mounting component 21 such as a valve mounted on the rotary table 3.

Next, the operation of this embodiment will be described. Electricity supplied from the outside is transmitted via the double-track cable 16 to the mounting member 1
Guided to 5. At this time, the double-track cable 16 has the rotating shaft 2a.
Since the number of turns is increased or decreased by the rotation of the rotary shaft 2a and moved by the biasing force of the slider 12 or the tension coil spring 14, the rotary shaft 2 can be rotated even if both ends of the double-wire cable 16 are fixed. Further, since the pulley 13 is always pulled in a fixed direction by the tension coil spring 14, the double-track cable 16 does not sag. In addition,
The number of times the rotary table 3 can rotate is determined by the stroke of the slider 12 that can move.

The air supplied from the outside is the first air pipe 19, the lower air joint 18, and the hollow portion 2 of the rotary shaft 2.
It is guided to the mounting member 21 via a, the upper air joint 17, and the second air pipe 20. At this time, since the air joints 17 and 18 are rotatable with respect to the rotary shaft 2, the pipes 19 and 20 are
The rotation with respect to is absorbed.

According to this embodiment, electricity and air can be supplied to the mounting members 15 and 21 on the rotary table 3 with a simple and inexpensive structure. Further, since the double-wire cable 16 does not project to the outer circumference, it does not interfere with the obstacle. Further, since the double-line cable 16 and the pipe are not inserted into the hollow portion inside the rotary shaft 2, the assembling property and the maintainability can be improved even when the rotary shaft 2 is thin.

By connecting a plurality of valves 31 in series to the second air pipe 17 connected to the upper air joint 17 as shown in FIG. Can be driven. Further, by supplying electricity to the valve 31 and controlling it to create a plurality of air systems, a plurality of cylinders can be mounted on the rotary table 3 for control.

In the above embodiment, the case where electricity and air are supplied to the mounting member on the rotary table 3 has been described.
When supplying only electricity or only air, only one of the mechanisms may be provided.

[0023]

As described above, according to the rotary table of the first aspect, since the electric wire is wound around the rotary shaft of the rotary table to give a constant tension, the rotary table is mounted on the rotary table. Electricity can be easily supplied with a simple structure.

Further, according to the rotary table of the present invention, the hollow portion of the rotary shaft serves as an air passage and the air pipe is connected through a rotatable air joint. The structure can easily supply air.

Further, according to the rotating table of the third aspect, since the mechanism according to the first aspect and the second aspect of the invention are provided together, electricity and air can be easily supplied to the mounting member on the rotating table.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of a rotary table of the present invention.

FIG. 2 is a perspective view showing a configuration of a main part of a turntable according to another embodiment of the present invention.

FIG. 3 is a perspective view showing a configuration of an example of a conventional rotary table.

FIG. 4 is a perspective view showing the configuration of another example of the conventional rotary table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Rotating shaft 2a Hollow part 3 Rotary table 11 Linear guide (guide member) 12 Slider (moving member) 13 Pulley 14 Tensile coil spring (spring member) 15, 21 Mounting member 16 Double track cable (electric wire) 17, 18 Air joint 19 1st air piping 20 2nd air piping

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshihiko Abe 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (3)

[Claims] 1. A rotary table, which is rotatably supported on a base and on which a mounting member supplied with electricity from the outside is mounted, and a moving member which is guided and moved by a guide member on the base, A pulley that is rotatably provided on the moving member, a spring member that urges the pulley to move in a direction away from the rotary table, one end connected to the mounting member, and the other end wound around a rotary shaft of the rotary table. A rotating table, comprising: an electric wire that is drawn out to the outside through the pulley after being turned. 2. A rotary table which is rotatably supported on a base and has a mounting member to which air is supplied from the outside. The rotary table is formed so as to axially penetrate through a center of a rotary shaft of the rotary table. A hollow part, an air joint rotatably and rotatably attached to the upper and lower ends of the hollow part, and a first air pipe having one end connected to the lower air joint and the other end fixed to the base. And a second air pipe having one end connected to the upper air joint and the other end connected to the mounting member. 3. The rotating shaft according to claim 1, wherein the rotary shaft according to claim 1 is provided with the hollow portion according to claim 2, the air joint, and the first and second air pipes. table.