JPH0736163Y2 - Centralized piping system for rodless cylinders - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a rodless cylinder having a centralized piping mechanism capable of connecting piping from multiple directions.

[Prior Art] As shown in FIG. 6, a cylinder body 3 is installed between a pair of end plates 1 and 2, and a movable body 4 movable along the outer surface of the cylinder body 3 is installed inside the cylinder body 3. A rodless cylinder that moves integrally with a reciprocating piston (not shown) is already known.

However, in the known rodless cylinder described above, the ports 5A and 5B for supplying the pressure fluid to the pair of pressure chambers partitioned by the pistons are opened only on one surface of the end plate 1 or 2, so that, for example, Piping becomes difficult if the pressure fluid source is on the side opposite to the port opening surface, and along the longitudinal direction of the rodless cylinder if the pressure fluid source is on the side opposite to the end plate where the port is opened. The piping may hinder the movement of the mover.

[Problem to be Solved by the Invention] An object to be solved by the present invention is to provide a rodless cylinder capable of connecting a pipe for supplying a pressure fluid to an optimal port according to the position of the pressure fluid source. .

[Means for Solving the Problems] In order to solve the above problems, a centralized piping mechanism of a rodless cylinder according to the present invention has a pair of end plates, a cylinder body between these end plates, and an outer surface of the cylinder body. A movable body that is movable along the cylinder body and a piston that reciprocates in the cylinder body are provided, and a pressure fluid is supplied to a pair of pressure chambers defined by the piston from a port opened in an end plate to move the movable body. In a rodless cylinder that moves integrally with a piston in synchronization, a port for individually supplying a pressure fluid to a pair of pressure chambers is formed on each of the front surface and the side surface facing each other of the pair of end plates. It is characterized in that the respective ports are communicated with each other for each pressure chamber by the flow passages formed in the end plate and the cylinder body.

[Operation] Ports for individually supplying pressure fluid to a pair of pressure chambers partitioned by pistons are provided on the front surface of the pair of end plates and the side surfaces facing each other, and these ports are provided for each pressure chamber. Since they are communicated with each other, the pipe can be connected to a port close to the pressure fluid source or a port where the pipe can be easily connected.

Further, when the pressure fluid source is on the back side of the end plate, the rodless cylinder can be rotated 180 degrees to connect the pipe to the port opened on the front side of one of the end plates.

Therefore, the pipe can be connected to the optimum port according to the installation posture and installation position of the rodless cylinder, the position of the pressure fluid source, etc., so that the pipe connection is easy and the pipe becomes an obstacle to the movement of the mover. Nothing.

[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention, in which a cylinder body 12 of this rodless cylinder 11 has a flow passage for communicating a cylinder hole 14 in which a piston 13 slides with a port described later. 15 and 16, end plates 17 and 18 are fixed to both ends by appropriate means, and a mover 19 that moves along the outer surface of the cylinder body 12 reciprocates integrally with the piston 13. .

In the rodless cylinder, the piston and the mover can be integrally reciprocated by providing a plurality of magnet rows that attract each other, and by forming the piston and the mover in the longitudinal direction of the cylinder body. It is known that the rodless cylinder of the present invention is connected by a connecting member that passes through a slit provided, but any of these may be used. The flow path may be formed in the guide.

The end plate 17 has a right port RA1 on the front surface 17a in the drawing.
And RB1 are also provided with ports RA2 and RB2 on the surface (side surface) 17b opposite to the mounting surface of the cylinder body 12, and ports RA3 and RB3 are also provided on the bottom surface 17c.
Ports LA1 and LB1 on the left side at 18a and the same ports at side 18b
LA2 and LB2 are opened, and ports LA3 and LB3 are also opened on the bottom surface 18c.

In addition, the ports RA1 to RA3 on the right side and the ports LA1 to LA3 on the left side
Communicate with each other through the flow paths 21a and 22a formed in the end plates 17 and 18 and the flow path 15 of the cylinder body 12 and also with the pressure chamber A defined by the piston 13 (see FIG. 2). Ports RB1 to RB3 and left ports LB1 to LB3 are end plates
The flow passages 21b and 22b formed in 17 and 18 and the flow passage 16 of the cylinder body 12 communicate with each other and also with the pressure chamber B defined by the piston 13 (see FIG. 3).

In this case, the ports RA3, RB3 and LA3, LB3 opened on the bottom surfaces 17c, 18c of the end plates 17 and 18 are installed in the manifold base when the rodless cylinder 11 is installed on the manifold base (not shown). It is related so that it can be directly connected to each supply port opened on the upper surface, and these ports have seal packings 23, ...

In the figure, reference numerals 25, ... are mounting holes for mounting the rodless cylinder 11, and reference numerals 26, ... are end plates 17, 18 and the cylinder body.
A connecting hole for connecting 12 together.

In the above embodiment, the front surfaces 17a and 18a of the end plates 17 and 18 and the side surfaces 17b and 1
8b and the bottom surfaces 17c, 18c are provided with ports for supplying compressed air to the pressure chambers A and B, respectively, and these ports are communicated with each other for the pressure chambers A and B, respectively. Not only can pipes be connected to any of the ports opened on the front, side and bottom of the plates 17 and 18, but also by rotating the rodless cylinder 11 by 180 degrees, the pipes can be connected even when the compressed air source is on the rear side. Can be connected.

Therefore, since it is possible to pipe the optimum port according to the installation posture and installation position of the rodless cylinder 11, the position of the compressed air source, etc., it is easy to connect the pipes, and the pipes may hinder the movement of the slider. Absent.

In this case, it goes without saying that the port to which the pipe is not connected is closed by an appropriate means such as a plug.

FIG. 4 shows a modification of the present invention in which elbow type pipe joints 30 and 30 are attached to the ports LA1 and LB1 on the front surface 18a of the end plate 18, and the pipe joint 30 includes a joint body 31 and the joint body 31. The driving half 32 is mounted so as to be rotatable only, and a so-called one-touch locking portion (not shown) for locking the tube by insertion is mounted in the opening of the driving half 32.

Since the driving half 32 rotates with respect to the joint body 31 (see FIG. 4B), the pipe joint 30 can be connected to these ports even if the ports LA1 and LB1 are close to each other.

FIG. 5 shows another modification in which the pipe joints 30 and 30 are attached to the ports LA2 and LB2 on the side surface 18b of the end plate 18, and this modification is
Not only can piping be performed even if ports LA2 and LB2 are close to each other, but piping can be connected from above rodless cylinder 11.

The pipe joint 30 can also be attached to the ports RA1, RB1 and RA2, RB2 on the front surface 17a and the side surface 17b of the end plate 17.

Further, the pipe joint may be a straight pipe joint in which the driving half that rotates with respect to the joint body opens in the same direction as the opening direction of the port.

The front surface of the end plate in the present invention refers to either one of a pair of surfaces facing each other, and is not limited to the front surface shown in FIG.

[Effect of the Invention] The centralized piping mechanism of the rodless cylinder of the present invention is
By installing ports on the front of the pair of end plates and on the sides facing each other, and connecting these ports to each pressure chamber, the installation location, installation posture, and fluid pressure source of the rodless cylinder Since the pipe can be connected to the most suitable port according to the position, etc., the piping work is easy, there is no piping failure, and the pipe does not hinder the movement of the mover.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which A is a plan view without an intermediate part, B is a front view, C is a right side view, D is a left side view, and E is a bottom view with the intermediate part omitted. 2 and 3 show the connection state of the RA port and LA port and the RB port and LB port in the above embodiment, A is a plan view with the intermediate part omitted, B is the same front view, and C is a right side view. , D is a left side view,
4 and 5 show a modified example of the above embodiment, A is a left side view, B is a front view, and FIG. 6 is a front view showing the outline of a known rodless cylinder. 11 …… Rodless cylinder, 12 …… Cylinder body, 13…
… Pistons, 15,16,21a, 21b, 22a, 22b …… Flow paths, 17,18…
… End plates, 17a, 18a …… front, 17b, 18b …… sides, 17c, 18c
...... Bottom surface, 19 ...... Mover, A, B ...... Pressure chamber, RA1, RA2, RA
3, LA1, LA2, LA3 ... Port, RB1, RB2, RB3, LB1, LB2, LB3 ...
…port.

Claims (1)

[Scope of utility model registration request] 1. A piston comprising: a pair of end plates, a cylinder body between these end plates, a mover movable along the outer surface of the cylinder body, and a piston reciprocating in the cylinder body. In a rodless cylinder that supplies pressure fluid to a pair of pressure chambers partitioned by a port from a port opened in an end plate to integrally move the mover in synchronization with a piston, the front face of the pair of end plates and Ports that individually supply pressure fluid to a pair of pressure chambers are opened on the opposite sides, and these ports are communicated with each other by the flow passages opened in the end plate and cylinder body. The centralized piping mechanism for rodless cylinders.