JP2549705Y2 - Square flat cylinder and pneumatic cylinder device - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a square flat cylinder and
The present invention relates to a pneumatic cylinder device formed by combining the rectangular flat cylinders .

[0002]

2. Description of the Related Art In recent years, there has been a need to reduce the cost of production equipment, and it is expected that the use of pneumatic actuators instead of hydraulic actuators will expand. As this type of pneumatic cylinder, a round piston type is used. Generally, in this round piston type, a large number of cylinder bores having a bore diameter corresponding to the required thrust of the equipment to be used are prepared, and a series is designed.

[0003]

Therefore, there is a problem that the diameter of the cylinder tube, its mold, the diameter of the piston and the like are different for each series of bore diameters, so that it is not possible to use common parts. For this reason, the cost reduction of equipment could not be satisfied.

[0004] From the user's standpoint, if the specifications of the equipment of the production equipment are changed, the required thrust of the pneumatic cylinder used for the equipment becomes incompatible, and a new pneumatic cylinder is purchased. There is a problem that must be done.

The present invention has been made in view of the problems existing in the prior art as described above. The purpose of the present invention is to make it possible to use common parts, reduce the cost, and reduce the required thrust of the equipment to be used. Square flat cylinder that can be flexibly used
Pneumatic syringe with multiple fixed flat cylinders
The present invention is to provide a device .

[0006]

In order to achieve the above object, according to the invention, a flat cylinder is provided.
Includes a chamber therein, and cross-section different from a length ratio of its short sides and long rectangular tube, the cross section is provided at both ends before
End cover that is almost similar to the cross section of the tube
A pressurized fluid is supplied to the cylinder chamber perforated in the end cover.
A rectangular flat cylinder having a supply / discharge port for discharging and a piston slidably fitted in the cylinder chamber ,
The two end covers have the above-mentioned surface
Penetrate the two surfaces sandwiching the supply / discharge port, and
A first passage communicating with the first passage is formed.
The direction connecting the openings is parallel to the surface on which the supply / discharge port is provided.
So that the first passage communicates with the cylinder chamber.
The gist is that a second passage is formed .

[0007] In the invention of claim 2, serial to claim 1
The rectangular flat cylinder on which the first passage is opened
And the piston moves in the same direction.
The gist is a plurality of fixed pneumatic cylinder devices .

[0008] According to the invention described in claim 3, the invention described in claim 2 is provided.
In addition to the above-mentioned invention, the plurality of fixed rectangular flat syringes
The gist of the invention is that a plate-shaped connecting member for connecting the plurality of piston rods is provided at the tip of each piston rod of the damper.

[0009]

According to the present invention, with the above-described structure,
When connecting rectangular flat cylinders to each other, use the end cover
Are connected so that the open surfaces of the first passages of
Then, the first passages communicate with each other. Also for the end cover
Defines a second passage, and connects the cylinder chamber and the first passage.
Has been passed. Therefore, connection connection between cylinder chambers is performed.
It is not necessary to provide new members and pipes
And the device is not unnecessarily enlarged.
Also, connect the required number using the same square flat cylinder.
Can be used to share common components
You.

[0010] In the invention according to the second aspect, one square deviating is provided.
Seal the supply / discharge port other than the supply / discharge port of the flat cylinder
From the supply / discharge port of one rectangular flat cylinder
Supply and exhaust of air to and from each cylinder chamber through the passage and the second passage
Is performed.

According to the invention described in claim 3, the invention described in claim 2 is provided.
In addition to the effect of the invention of the mounting, the thrust of each piston is coupled by attached to the connecting member to the piston rod end
You. Therefore, when selecting the number of cylinders to be connected,
The required thrust can be obtained.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. A plurality (3 in this embodiment)
The casing 4 made of aluminum of the rectangular flat cylinder 1 includes a tube 5, a head cover 6 integrated with the tube 5, and a rod cover 7 fixed to the tube 5. The tube 5 and the head cover 6
Is integrally formed by extrusion, and has a bottomed cylindrical shape as a whole. The casing 4 has a substantially rectangular cross section, and has a flat rectangular shape in which the ratio of the short side to the long side is different. A step is formed on the periphery of the rod cover 7 as a fitting portion, and the fitting portion of the rod cover 7 is tightly fixed to the opening of the tube 5 by laser welding or an adhesive. An insertion hole 8 is formed in the center of the rod cover 7. The piston 9 is movably inserted into the tube 5, and its piston rod 10 penetrates through the insertion hole 8 via the seal ring 11. FIG.
As shown in (1), a plate-like connection fitting 16 is attached to the tip of the piston rod 10, and the thrust of each piston 9 is connected.

The insertion holes 20 are provided at two locations between the short sides of the rod cover 7 and the head cover 6. Each casing 4 is fastened and fixed by bolts 2 and nuts 3 passing through the insertion holes 20 in a state where the short sides of the casings 4 are in close contact.

The head cover 6 and the rod cover 7 are formed with supply / discharge ports 12, 12a, respectively. The first passages 13 and 13a communicate with the supply / discharge ports 12 and 12a and penetrate between the short sides of the head cover 6 and the rod cover 7.

The first passages 13 and 13 a of the respective rectangular flat cylinders 1 are connected via a seal ring 17. The other ends of the first passages 13, 13a and the other supply / discharge ports except for the respective supply / discharge ports on the head side and the rod side are sealed with plugs 19a, 19, respectively.

The second passages 14 and 14a are connected to the head-side cylinder chamber 15 and the rod-side cylinder chamber 1 of the casing 4 respectively.
5a and the first passage 13, 13a. Therefore, the supply / discharge ports 12, 12a without the stopper 19
Communicates with all the cylinder chambers 15, 15a via the first and second passages 13, 13a, 14, 14a. Piping is connected to the supply / discharge ports 12 and 12a without the stopper 19.

Therefore, the supply / discharge port 1 without the stopper 19
Air is supplied and discharged through the cylinders 2 and 12a.
Are operated simultaneously. As described above, when the thrust is changed to change the specification of the equipment, the number of cylinders 1 may be increased or decreased. That is, even if a large number of cylinders are not prepared, a small number or a single type of cylinder can sufficiently cope with a change in the specification.

Therefore, most parts of the cylinder can be used in common, and the number of types of molds can be reduced. Further, the width can be reduced as compared with a conventional round cylinder.

In the operation of the cylinder, the thrust of each piston 9 is combined by the connection fitting 16, so that a sufficient thrust can be obtained. Note that the present invention is not limited to the configuration of the above embodiment, and the purpose of the present invention is changed without departing from the spirit of the invention. It can be arbitrarily changed within a range not to be performed.

[0020]

According to the invention as set forth in claim 1, a plurality of the inventions are provided.
Components can be shared even when connecting cylinders
It is possible to reduce the cost and form a passage
Connection between cylinder chambers without the need for new members or piping
Connection can be easily performed. In addition, more equipment than necessary
This has the effect of preventing an increase in size .

According to the invention described in claims 2 and 3,
For example, by selecting the number of connected cylinders,
This produces an effect that a necessary thrust can be obtained .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a pneumatic cylinder device embodying the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of the pneumatic cylinder device.

FIG. 3 is a vertical sectional view of a pneumatic cylinder device.

[Reference Numerals] 2 is a fixed member volts, 3 fixing member is a nut, 5 tubes, head cover is six end cover, 7 rod cover an end cover, 9 piston, 12, 12a supply and discharge ports, 13, 13a First passage, 14, 14a Second passage, 15, 15a Cylinder chamber , 16 Connection fitting as connection member .

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-48003 (JP, A) JP-A-59-151605 (JP, A) JP-A-62-237104 (JP, A) 19908 (JP, U) Japanese Utility Model 4-1704 (JP, U) Japanese Utility Model 2-77304 (JP, U) Japanese Utility Model 61-73805 (JP, U) Japanese Utility Model 48-16077 (JP, Y1)

Claims (3)

(57) [Scope of request for utility model registration] 1. A flat cylinder chamber is provided inside,
A tube whose cross section is rectangular and whose length ratio between the short side and the long side is different, and the cross section provided at both ends thereof is a cross section of the tube.
End covers that are almost the same as
A supply / discharge port for supplying / discharging a pressure fluid to / from the cylinder chamber
When, in the rectangular flat cylinder with a piston which is slidably fitted in the cylinder chamber, wherein both end covers, among surfaces exposed to the outside the
Penetrate the two surfaces sandwiching the supply / discharge port, and
A first passage communicating with the first passage is formed.
The direction connecting the openings is parallel to the surface on which the supply / discharge port is provided.
So that the first passage communicates with the cylinder chamber.
Characterized in that a second passage is formed,
Linda. 2. The rectangular flat cylinder according to claim 1,
The surfaces on which the first passage opens are aligned with each other and
Multiple fixed so that the moving direction of the stone is the same
A pneumatic cylinder device. 3. The fixed rectangular flat cylinder according to claim 2, wherein
3. The pneumatic cylinder device according to claim 2 , wherein a plate-shaped connecting member for connecting the plurality of piston rods is provided at a tip of each piston rod.