JPH0717842Y2 - Fluid supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fluid supply device for supplying a pressure fluid to a fluid device.

[Prior Art] Since a known air supply device supplies air through a port fixed to a pipe installed in a factory, a tube reel or the like is used when one person works in two steps. Have to move. Also, even if the working line is changed, the position of the port is fixed, so it is necessary to connect with a tube.In addition, when supplying compressed air to the fluid pressure actuator, the fixed port and the fluid pressure actuator are connected to the tube. Need to connect by.

Therefore, there is a problem that the tube for air supply is entangled or it interferes with the work, and the workability is deteriorated.

[Problems to be Solved by the Invention] An object of the present invention is to provide a fluid supply device capable of supplying a pressure fluid through a slidable port block.

[Means for Solving the Problems] In order to solve the above problems, a fluid supply device according to the present invention includes a guide rail having side walls on both sides in the longitudinal direction, and a longitudinal fluid flow formed on at least one of the side walls. A passage, a slit formed in the fluid flow path, a flexible strip that closes the slit from the fluid flow path, a port block movable along the guide rail, and installed in the guide rail. Fluid pressure cylinder for port block drive,
A first communicating individually with the fluid pressure cylinder and the fluid flow path;
And a pair of bellows, both ends of which are connected to the longitudinal end of the guide rail and the port block and cover an opening of the guide rail, the end plate having a second port and a longitudinal end of the guide rail. In blocks,
A port guide that slides along the strip through the slit is provided, and a passage that connects the fluid flow path and the outside is formed in the port block and the port guide.

[Operation] When the pressure fluid is supplied to and discharged from the fluid pressure cylinder from the first port and the pressure fluid is supplied from the second port to the fluid flow path, the port block slides in the longitudinal direction of the guide rail to move from the fluid flow path. Pressure fluid is supplied to the passages of the port block.

In this case, since the passage opened in the port block is always in communication with the fluid passage, the pressure fluid can be supplied by the sliding port block.

Further, since the pair of openings of the guide rails are covered with the bellows, it is possible to prevent malfunction of the port block due to entry of foreign matter in the work environment.

[Embodiment] FIGS. 1 to 5 show an embodiment of the present invention. This fluid supply device is slidable along a guide rail 1 having a channel-shaped cross section and both side walls 2, 2 of the guide rail 1. Port block 3, a fluid pressure cylinder 4 for driving the port block 3, end plates 5a, 5b closing both longitudinal ends of the guide rail 1, and end plates 5a, 5b fixed to both ends of the port block 3 to form a guide. It is provided with a pair of bellows 6,6 that covers the opening of the rail 1.

The side walls 2 and 2 are provided with longitudinal fluid passages 10 and 10, and slits 11 and 11 formed to face these passages 10 and 10,
Sealed airtightly by strips 12, ... Wider than the slits arranged on both sides, and both ends of the strips 12, ... Are fixed to the end plates 5a, 5b.

The port block 3 includes a main body 15 between the side walls 2 and 2 and a slit 1
Port guides 16 and 16 passing through 1 and 11 and guide covers 17 and 17 in the fluid passages 10 and 10 are integrally fixed.

The main body 15 has pressure fluid supply ports 19 and 19 on its upper surface, screw holes 20 for mounting a fluid device (not shown) such as a fluid pressure actuator and a valve, and guide grooves of the guide rail 1 on both lower sides. Each of the port guides 16, 16 is provided with a guide protrusion 21, 21 that is loosely fitted in 1a, 1a, and is slidably mounted in the longitudinal direction of the guide rail 1 by the guide groove and the guide protrusion.
Sliding between the strips 12, 12 through the slits 11, 11, each of the guide covers 17, 17 has a width that straddles the strip 12, and by the seal packings 22, 22 attached to the legs 17a, An airtight seal is provided between the inner surface of the flow path 10 on the slit side and the strip 12. The port block 3 is also provided with passages 23, 23 passing through the main body 15, the port guides 16, 16 and the guide covers 17, 17, one end of each of the passages 23, 23 being the above-mentioned supply port 19, 19 and the other end being a fluid. The channels 10 and 10 are open.

The fluid pressure cylinder 4 has a bracket on the guide rail 1.
It is fixed by an appropriate means such as 24, and the piston rod 4a
The main body 15 of the port block 3 is fixed to the tip of the.

The end plate 5a includes a first port 25, 25 and a second port 26,
26, the first ports 25, 25 are connected to the pressure chambers of the fluid pressure cylinder 4 by the pipes 27, 27, and the second ports 26, 26 are connected to the fluid passages 10, 10 by passages not shown. It is in communication.

If the fluid device has only one supply port 19 such as a single-acting fluid pressure cylinder, the fluid passage 10 on one side wall 2 can be omitted.

In the above embodiment, the fluid device can be directly attached to the port block 3 by the screw holes 20, ...
The compressed fluid such as compressed air can be directly supplied to the fluid equipment from.

When pressure fluid is supplied from the first ports 25, 25 and the second ports 26, 26, the fluid pressure cylinder 4 causes the port block 3
Slides in the longitudinal direction of the guide rail 1, and at the same time, the pressure fluid supplied from the second ports 26, 26 to the fluid flow passages 10, 10 passes through the passages 23, 23 to the fluid inlets 19, 19 to the fluid equipment. Supplied.

In this case, since the fluid flow path 10 and the supply port 19 are always in communication with each other through the passage 23, the pressure fluid can be supplied from the supply ports 19 and 19 even if the port block 3 slides. Further, since the slit 11 is sealed by the flexible belt-like body, particularly the belt-like body 12 which is brought into pressure contact with the slit 11 by the fluid pressure of the supply channel 10, the pressure fluid does not leak from the slit 11.

Therefore, the pressurized fluid can be supplied to the fluid device without using a tube or a pipe exposed in the working environment, so that the working efficiency can be improved.

Although not shown, when the piston rod 4a is stopped at a desired position by, for example, a brake device,
Pressure fluid can be supplied to the fluid device at that location.

Further, since the opening of the guide rail 1 is covered with the pair of bellows 6,6, it is possible to prevent the foreign matter in the working environment from entering the guide rail 1 through the opening and preventing the port block 3 from malfunctioning. , You can clean the appearance.

[Effect of the Invention] The fluid supply device of the present invention has a sliding port block
Since the pressure fluid can be supplied regardless of the sliding position, it is not necessary to use a tube or the like exposed to the outside to supply the fluid to the fluid device, and thus work efficiency can be improved.

Also, between the guide rail and the sliding port block,
Since the pair of bellows is provided to cover the opening of the guide rail, it is possible to prevent a malfunction due to intrusion of foreign matter into the sliding portion or the sealing portion, and to make the appearance clean.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a partially cutaway plan view, Fig. 2 is a vertical sectional front view, Fig. 3 is a side view, and Fig. 4 is a cross-sectional view showing essential parts. FIG. 5 is a sectional view taken along line AA of FIG. 1 ... Guide rail, 2 ... Side wall, 3 ... Port block, 4 ... Fluid pressure cylinder, 5a ... End plate, 10
...... Fluid flow path, 11 …… Slit, 12 …… Band, 23 ……
Aisle, 25 …… First port, 26 …… Second port.

Claims (1)

[Scope of utility model registration request] 1. A guide rail having side walls on both sides in the longitudinal direction, a longitudinal fluid passage formed on at least one of the side walls, a slit formed in the fluid passage, and the slit on the fluid passage side. A flexible strip closed from the guide rail, a port block movable along the guide rail, a fluid pressure cylinder for driving the port block installed in the guide rail, the fluid pressure cylinder and the fluid passage. An end plate at the longitudinal end of the guide rail having first and second ports that individually communicate with each other, and a pair of both ends connected to the longitudinal end of the guide rail and the port block to cover the opening of the guide rail. A bellows, the port block is provided with a port guide that slides along the strip through the slit, the port block and the port guide , The fluid pressure supply unit, characterized in that the formation of the passage for communicating the said fluid flow path and the outside.