JPH0341129Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention uses a large number of manifold blocks equipped with solenoid valves that individually control each actuator, such as a robot equipped with a large number of actuators operated by fluid pressure. It relates to a valve unit that is assembled into one piece.

Problems to be solved by conventional techniques and ideas Conventionally, such a valve unit has a supply passage and a discharge passage penetrating between both sides, an inlet/outlet for connecting an actuator on the back side, and the above-mentioned valve unit on the top side. A plurality of manifold blocks each having a substantially rectangular parallelepiped shape each having an opening communicating with the supply passage and the discharge passage, and an opening communicating with the inlet/outlet of the rear surface, respectively, are joined so that the supply passage and the discharge passage are aligned with each other, and both sides thereof are connected. By arranging and tightening side blocks in which ports of the supply passage and discharge passage are formed, the manifold blocks are connected together, and the wiring cables of the solenoid valves respectively attached to the upper surfaces of the manifold blocks are connected. The valve unit is connected to the terminal of the terminal plate attached to the front end surface of each manifold block through the inside of each manifold block, and the valve unit body is attached to a predetermined mounting position and the supply is connected to a pumping source of working fluid. The pipes and discharge pipes are connected to each port on the side block, and connecting pipes are connected to the inlet and outlet of each manifold block respectively, and the cable bundles routed from the control device are connected to the manifold block on the side block. After connecting each cable to each terminal by inserting it into the front of each manifold block through the insertion hole formed in the projecting wall extending forward from the front end of the manifold block, a U-shaped cross section is inserted between the projecting walls of the both side blocks. The space in front of each manifold block is sealed off from the outside by installing a cover, and since the supply and discharge channels of each manifold block are combined into one, each port on the side block and By simply connecting the piping between the pressure supply sources of the working fluid, the supply and discharge passages of each manifold block can be connected to the pressure supply source of the working fluid, reducing the number of piping. Normally, several wiring cables must be routed from each control device, whereas if each solenoid valve is not grouped together, several wiring cables must be routed between each solenoid valve and the control device. Since each solenoid valve is gathered in one place, the common cable wired from the control device can be branched and connected within the cover for the wiring cables common to each solenoid, which reduces the number of wiring cables. can,
This has the advantage of simplifying piping and wiring, but since the bundle of cables passed through the insertion holes in the projecting wall and connected to the terminals of each terminal board hangs down in front of each manifold block, the projecting parts on both side blocks are When installing a cover between walls, a bundle of hanging cables gets caught on the cover, making it difficult to install.
Another disadvantage was that some of the cables were caught between the cover and the fitting part of the manifold block.

Means for Solving the Problems As a means for solving the above-mentioned problems, the present invention has a structure in which a support plate for supporting a cable bundle is protruded from the lower end of the front surface of each terminal board.

Functions and Effects Since the valve unit of the present invention has the above structure, the cable bundle is supported by each support plate and is reliably prevented from hanging downward, thereby preventing the cable bundle from getting caught when the cover is installed. This has the effect of making it easier to attach the cover and preventing some of the cables in the cable bundle from being caught in the fitting portion between the cover and the manfold block and being damaged.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIG. 1, 1 has a supply path and a discharge path (not shown) formed between both sides, an inlet/outlet 2, 3 for connecting an actuator on the back side, and an inlet/outlet 2, 3 on the top surface. The manifold block is a rectangular parallelepiped manifold block formed with openings 4 and 5 communicating with the supply passage and the discharge passage, respectively, and openings 6 and 7 communicating with the supply passage and the discharge passage, respectively. The discharge passages are aligned and connected to each other, and side blocks 11 are disposed on both sides thereof, each having ports 8 and 10 that communicate with the supply passage and the discharge passage of the manifold block 1, respectively, and through bolts 12 are inserted through these side blocks 11. ，
12, each manifold block 1 and both side blocks 11 are integrally connected, and the upper surface of each manifold block 1 has a
A solenoid valve 14 has ports on its lower surface that align with the openings 4 to 7, respectively, and a solenoid connecting terminal protrudes from the lower surface. It is fixed by tightening the mounting bolt 17.

A terminal plate 18 is attached to the front end of each manifold block 1, and this terminal plate 18 is
At the center of the front surface of the board 20 fixed to the front end surface of the manifold block 1, there is a terminal block 23 having a mounting surface 21 facing diagonally upward at the upper end and a partition plate 22 that laterally partitions the mounting surface 21. At the same time, a support plate 24 is formed at the lower end and projects horizontally forward, and an annular seal member 25 is fitted into a step formed on the outer periphery of the rear surface of the board 18. After mounting, the terminal block is installed by passing the mounting screws 27 through the through holes 26 formed at both diagonal angles of the board 18 and tightening them into the screw holes on the front end surface of the manifold block 1, as shown in FIG. A terminal 28 is attached to each side of the mounting surface 21 separated by 23 partition plates 22, and a lead wire 29 of the connector 16 is transparently installed in the wiring hole 30 and the substrate 20 of the terminal plate 18 in each terminal 28. It passes through the insertion hole 31 and is connected by an upper screw 32, while the manifold block 1 of both side blocks 11, 11
A through hole 35 is provided in each of the protruding walls 34 projecting forward from the front end of the manifold block, and a bundle of wiring cables connected to a control device (not shown) can be inserted into the manifold block through the through hole 35 of one of the protruding walls 34. 1, and each wiring cable is connected to each terminal 28 of each terminal board 18 by a lower screw 36.
A sealing member that tightly fits around the bundle of wiring cables is fitted into the insertion hole 35 of the projecting wall 34 on the side through which the bundle of wiring cables is inserted, and the bundle of wiring cables is connected to the insertion hole 35 and the bundle of wiring cables. In addition, a lid body made of synthetic rubber is tightly fitted into the insertion hole 35 on the other side and sealed, and the projecting wall 34 of the block 11 on both sides is sealed.
A cover 38 having a U-shaped cross section is disposed between the manifold blocks 1 and 34, and has both ends fitted into fitting steps 40 formed on each projecting wall 34, and its upper and lower tip edges connected to both upper and lower edges of the front end of each manifold block 1. The front part of each manifold block 1 is cut off from the outside and is connected to a pressure supply source of working fluid (not shown). The supplied supply pipe and the discharge pipe are connected to each port 8, 10 of one side block 11, and each port 8, 10 of the other side block 11 is connected to each port 8, 10 of the other side block 11.
are respectively closed with blind plugs, and piping is installed between the inlet/outlet 2, 3 on the back of each manifold block 1 and each actuator. A support plate 24 is formed on each side block 11.
The bundle of cables inserted into the front of each manifold block 1 from the insertion hole 35 of the protruding wall 34 is supported by each support plate 24 and is prevented from hanging downward. This reliably prevents a bundle of cables from getting caught on the tip edge of the face plate 45, and also prevents some cables from being pinched between the tip edge and the fitting step 41 of the manifold block 1. .

In this embodiment, since the terminals 28 of each terminal board 18 are attached to the mounting surface 21 formed at the upper end of the terminal board 23 and face diagonally upward, the terminals 28 of each terminal board 18 are This has the advantage of making it easier to connect each cable in the cable bundle and check the terminal voltage.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing the overall structure of an embodiment of the present invention, and FIG. 2 is a sectional view of its front end. 1: Manifold block, 2, 3: Inlet/outlet,
4, 5, 6, 7: Opening, 8, 10: Port, 1
1: Side block, 14: Solenoid valve, 1
8: Terminal board, 24: Support plate, 28: Terminal,
34: Projection wall, 35: Through hole, 38: Cover.

Claims (1)

[Scope of utility model registration request] A supply channel and a discharge channel are provided between both sides, an inlet and an outlet for connecting the actuator are formed on the back surface, and an opening that communicates with the supply channel and the discharge channel, respectively, and an opening that communicates with the inlet and outlet of the back surface, respectively, on the upper surface. A plurality of manifold blocks each forming a substantially rectangular parallelepiped are connected with the supply passage and the discharge passage aligned with each other, and side blocks having respective ports of the supply passage and the discharge passage are arranged on both sides of the manifold blocks. The manifold blocks are joined together by tightening, and the wiring cables of the solenoid valves respectively attached to the top surface of each manifold block are passed through the inside of each manifold block to the terminal plate attached to the front end surface of each manifold block. At the same time as connecting to the terminal, each cable of the cable bundle inserted through the insertion hole of the protruding wall protruding from the front end face of the manifold block of the side block is connected to each terminal, respectively, and the cables are connected to the respective terminals, and the cables are inserted between the protruding walls of the both side blocks. In the valve unit, a space in front of the terminal plate of each manifold block is isolated from the outside by attaching a cover having a U-shaped cross section to the valve unit, and a support plate for supporting the cable bundle is protruded from the lower end of the front surface of each terminal plate. A valve unit characterized by the following.