JP2554686Y2 - Manifold block - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manifold block for mounting and fluidly connecting a directional control valve and other fluid control devices.

[0002]

2. Description of the Related Art Conventionally, various manifold blocks have been used for attaching a fluid control device and fluidly connecting it.

For example, four connection holes A, B, P, and R for connecting to a switching valve are opened on the upper surface of a rectangular parallelepiped manifold block, and two connection surfaces perpendicular to the upper surface are formed on the upper surface of the manifold block. Two connection holes, P and R, which are open on the upper surface, are respectively connected to the two connection holes, and two connection holes, A and B, which are open on the upper surface, are formed on two upper surfaces and two side surfaces perpendicular to the connection surface. The connection holes communicating with each other are opened.

When controlling a plurality of double-acting hydraulic cylinders using such a conventional manifold block,
A plurality of manifold blocks are sequentially arranged by aligning the connection surfaces, a pipe connection cover provided with a connection screw is arranged on one end of the manifold block, and blind at the other end of the connection surface. Are arranged and connected to each other by bolts penetrating them. Then, a four-port electromagnetic switching valve is mounted on the upper surface of each manifold block, connected to a pressure oil source and an oil tank by a pipe connection cover, and each of the manifold blocks A and B is connected to each hydraulic pressure by two connection holes. Connect to cylinder.

[0005]

However, in the conventional manifold block, since the two connection holes for P and R provided on the connection surface cannot be directly connected to the piping,
As described above, it is necessary to arrange a pipe connection cover or a blind cover on the connection surfaces at both ends.

Therefore, in actual use, there is a problem that the number of parts is increased and the size is increased.
Also, instead of connecting a plurality of manifold blocks, a dedicated manifold block, for example, two-unit or three-unit, is used. According to this, many types of manifold blocks corresponding to the number of connected units are manufactured and stocked. And there is a limit to the number of connections that can be prepared in practice.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a manifold block having a small number of parts, no increase in size, no need to prepare many types, and an unlimited number of connections. .

[0008]

According to a first aspect of the present invention, there is provided a manifold block in which a fluid control device is mounted on an upper surface and a fluid control device is provided at right angles to the upper surface.
It is a rectangular parallelepiped manifold block for connecting another manifold block to two opposite side connecting surfaces and fluidly connecting the mounted fluid control device, and having an upper surface having A, B, At least four connection holes of P and R are opened, and connection holes respectively communicating with the two connection holes of P and R opened on the upper surface are opened on the two connection surfaces, respectively. An opening is provided with a taper screw for pipe connection, and an opening to one connecting surface is provided with an annular groove for mounting packing,
A connection hole communicating with the two connection holes A and B opened on the upper surface is formed on a side surface other than the connection surface.

P is for supplying hydraulic oil, R is for return, and A and B are for output to a hydraulic cylinder or the like.

[0010]

By connecting another manifold block to the connection surface, a large number of fluid control devices can be attached and connected.

[0011] Since the tapered threads for connecting the pipes are provided at the openings of the two connecting faces, the pipes are directly connected directly to the tapered threads of the connecting faces of the manifold blocks arranged at the ends.

[0012]

1 is a top view of a manifold block 1 according to the present invention, FIG. 2 is a sectional plan view of the manifold block 1, FIG. 3 is a right side view of the manifold block 1, and FIG. 4 is a sectional front view of the manifold block 1. It is. In addition, FIG.
FIG. 4 is a diagram showing a cross section taken along line II-II, and FIG. 4 is a diagram showing a state in which a plurality of manifold blocks 1 are connected.

The manifold block 1 has a fluid control device (not shown) mounted on the upper surface 2 and another manifold block 1 connected to two connecting surfaces 3 and 4 which are perpendicular to the upper surface 2. For fluidly connecting the fluid control devices.

Upper surface 2 of cuboid-shaped manifold block 1
Has four connection holes 7 to 10 of A, B, P, and R, and two connection surfaces 3, 4 perpendicular to the upper surface 2 have:
Connection holes 11 and 12 communicating with the two connection holes 9 and 10 of P and R opened on the upper surface 2 are respectively opened, and tapered screws 11a and 11 for pipe connection are formed in those openings.
b, 12a and 12b are provided, and annular grooves 21 and 22 for mounting an O-ring are provided in the opening of one connecting surface 3.
Is provided.

On the side surfaces 5 and 6 other than the connection surfaces 3 and 4, connection holes 13 and 14 communicating with the two connection holes 7 and 8 of A and B opened on the upper surface 2 are opened. Are provided with tapered threads 13a, 13b, 14a, 14b for connecting pipes.

As shown in FIG. 4, the connection holes 7 and 8 are provided obliquely in a front view, respectively, and the connection hole 9 is formed as shown in FIG. ,
The connection hole 10 is provided obliquely in a side view, and the connection hole 10 is provided straight.

Further, insertion holes 30, 30,... For inserting bolts for connecting this manifold block 1 to another manifold block 1 are provided through the connection surface 3 to the connection surface 4, and the upper surface 2 Are provided with screw holes 31, 31... For mounting a fluid control device, and mounting holes 32, 32... For mounting the manifold block 1 to a frame or the like are provided through the upper surface 2 to the lower surface. I have.

A method for controlling a plurality of double-acting hydraulic cylinders using the manifold block 1 will be described with reference to FIG. First, the plurality of manifold blocks 1 are sequentially arranged by aligning the connection surface 3 and the connection surface 4, and the bolts or the cut-off bolts 34 are inserted through all the insertion holes 30 to be connected and fixed by the nuts 35. . At this time, the O-rings 41 are attached to the annular grooves 21 and 22, respectively.

Then, each manifold block 1
A four-port electromagnetic switching valve is mounted on the upper surface 2 of the valve, one of the tapered screws 11a and 11b is connected to a pressure oil source via a piping member, and one of the tapered screws 12a and 12b is connected to an oil tank via a piping member. Connect and taper screw 1
3a, 13b and taper screw 14a, 1
4b is connected to a port of a hydraulic cylinder via a piping member. The excess taper screw is blind plugged.

The pressure oil supplied from one of the tapered screws 11a and 11b is supplied to all the connection holes 9 connected thereto, and the entire pressure oil returned from the connection hole 10 is supplied to one of the taper screws 12a and 12b. To return to the oil tank. By switching each electromagnetic switching valve, a hydraulic cylinder connected to each manifold block 1 operates.

As described above, when the manifold block 1 of the above embodiment is used, the tapered screws 11a, 11b, 12a,
Since the pipe connection can be directly made to the pipe 12b, there is no need to arrange a pipe connection cover or a blind cover as in the related art, so that the number of parts is small and the size is not increased.

By manufacturing and stocking only one type of manifold block 1, any number of connections can be accommodated, and the stock amount can be reduced accordingly. There is no limit on the number of links in the range actually used.

In the above-described embodiment, the shape, size, position, number, and the like of the connection holes, tapered screws, and other portions can be variously changed in addition to those described above.

[0024]

[Effect of the invention] According to the invention, the number of parts is small, the size is not increased, and it is not necessary to prepare many types.
A manifold block having an unlimited number of connections can be provided.

[Brief description of the drawings]

FIG. 1 is a top view of a manifold block according to the present invention.

FIG. 2 is a cross-sectional plan view of a manifold block.

FIG. 3 is a right side view of the manifold block.

FIG. 4 is a cross-sectional front view of the manifold block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Manifold block 2 Top surface 3,4 Connecting surface 5,6 Side surface 7,8,9,10 Connection hole 11,12 Connection hole 11a, 11b, 12a, 12b Taper screw 13,14 Connection hole 21,22 Annular groove 41 O-ring ( Packing)

Claims (1)

(57) [Scope of request for utility model registration] 1. A fluid control device is mounted on an upper surface, and another manifold block is connected to two opposite side surfaces perpendicular to the upper surface to fluidly connect the mounted fluid control device. And at least four connection holes A, B, P, and R are open on the upper surface, and P and R open on the upper surface are two connection surfaces. Each of the connection holes communicating with the two connection holes is provided with an opening, and a taper screw for connecting a pipe is provided in the opening, and an annular opening for mounting a packing is provided in the opening on one of the connection surfaces. A manifold block, wherein a groove is provided, and a connection hole communicating with two connection holes A and B opened on the upper surface is opened on a side surface other than the connection surface.