JPH0619892Y2 - Speed control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a speed control device, and more particularly, to an air flow path defined by a rod-shaped tube through a speed controller for a pneumatic device. The present invention relates to a speed control device configured to connect directly to a port.

BACKGROUND ART Pneumatic devices have been widely spread in the related art in order to drive and control an object using a fluid such as air. In this case, the pneumatic equipment, for example, a cylinder is usually provided with a plurality of ports for introducing and discharging air. Generally, pressure air is introduced into these ports through a speed controller, and a piston slidably arranged inside the cylinder is configured to reciprocate at a predetermined speed by the pressure air. There is. As described above, conventionally, when a pipe defining an air flow path is attached to a pneumatic device such as a cylinder, various contrivances are made to reduce the installation space as much as possible and facilitate maintenance management. It is carried out.

By the way, when trying to connect this kind of speed controller to the pneumatic equipment as described above, in the prior art,
Generally, the screwing method is adopted. That is, the protrusion is hermetically fitted to the pressure-reducing discharge side port of the speed controller, and the passage extending in the axial direction of the protrusion is communicated with the port of the pneumatic device. At this time, an outer screw is engraved on the outer peripheral portion of the protrusion, and the speed controller and the pneumatic device are integrated by screwing the outer screw into the inner screw of the pneumatic device.

However, it has been pointed out that when the screwing method is used as described above, the number of mounting steps is extremely large, and the mounting operation is complicated because the speed controller itself has to be rotated when screwing in.

[Object of the Invention] The present invention has been made in order to overcome the above-mentioned inconvenience, and is a speed at which various fluid pressure devices can be easily attached and detached by one-touch operation. The purpose is to provide a control device.

[Means for Achieving the Object] In order to achieve the above object, the present invention provides a pipe connecting mechanism for mounting a pipe for introducing a pressure fluid, and a pipe connecting mechanism integrally provided with the pipe connecting mechanism. A speed controller provided in the main body of the speed controller, a rod portion that is attachable to and detachable from a fluid pressure device is provided, and a first passage is provided along the axial direction of the rod portion. Second and third passages are provided at right angles to the first passage, a check valve is provided between the second passage and the third passage, and the first passage is provided by a rotation operation of a knob member. A valve body that adjusts the fluid flow rate faces, and after the flow rate of the pressure fluid introduced from the pipe body is controlled by the valve body, the fluid flows through the first passage defined by the rod portion to the fluid pressure device. It is characterized by

[Embodiment] Next, preferred embodiments of the speed control device according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a speed control device according to the present invention.
10 is basically a pipe connection mechanism 12 and a speed controller
It is composed of 14 and. The tubular body connecting mechanism 12 includes a connecting portion 16.

Therefore, the connection portion 16 is formed with a large-diameter first hole portion 20 that expands to expose the opening portion to the outside, and a first hole portion 20 having a diameter slightly smaller than the end portion of the first hole portion 20 is formed. Two hole portions 22 are continuously provided. The second hole 22 communicates with the third hole 24 having a smaller diameter. A passage is formed in the third hole 24 so as to cross it.
26 communicate with each other, and the passage 26 faces a through hole of the speed controller 14, which will be described later. In this case, in order to close one end of the passage 26, the blind plug 30 is tightly plugged in the connecting portion 16.

Therefore, the tubular body connecting mechanism 12 housed in the first hole 20 will be described in detail with reference to FIG. A ring-shaped seal member 40 is first seated on the bottom of the first hole 20. The seal member 40 is provided with grooves 42a and 42b on the upper end surface portion and the lower end surface portion that circulate in order to increase the sealing effect. In view of its function, the seal member 40 is preferably formed of an elastic body such as natural rubber or synthetic rubber.

In the present invention, the chuck member 44 is also preferably used. The chuck member 44 is generally formed of a metal flat plate having a high elastic force in a ring shape, and a main body 46 thereof has a plurality of slits 48 defined at equal intervals. Then, at one end of the main body 46, this is bent inward to form a claw portion 50. The tip portion of the claw portion 50 is preferably sharpened so that it can be easily understood from the drawing. The collet 52 is fitted onto the chuck member 44. The collet 52 is also preferably made of a flexible member made of synthetic resin or the like, and a plurality of slits 56 are formed at equal intervals in a ring-shaped main body 54 like the chuck member 44.
A bulged portion 58 is formed at one end of the main body 54 so as to be outwardly oriented and has a thick wall, and a ring-shaped flange 60 is formed at the other end. It will be readily appreciated that the presence of the slit 56 allows the body 54 to flex inward or outward.

Next, in the present invention, a guide member 62 fitted to the outside of the collet 52 is prepared. As easily understood from FIG. 2, the guide member 62 is formed with a flange 64 extending inwardly at the upper end thereof, while at the lower end thereof, a flange 64 is circulated and predetermined inside. An inclined surface 66 having an angle of is formed. Further, an annular protrusion 68 is formed so as to bulge on the ring-shaped guide member 62 above the inclined surface 66.

On the other hand, reference numeral 70 indicates a release bush. The release bush 70 is formed in a cylindrical shape, and a flange 72 extending outward is formed at an upper end portion of the release bush 70. Further, the chuck member 44 is provided at the lower end of the release bush 70.
An edge 74 having a gentler inclination angle than the claw portion 50 is formed. The release bush 70 is formed with a plurality of slits 76 directed from the middle of the cylindrical body toward the edge 74, and the wall thickness of the release bush 70 is reduced between the slits 76 and the flange 72. Then, the stepped portion 78 is formed.

Next, the speed controller 14 will be described. The speed controller 14 basically includes a cylindrical body 80 and a speed controller main body 82 housed inside the cylindrical body 80. The cylindrical body 80 is made of the same relatively robust synthetic resin body as the pipe body connecting mechanism 12, and in this case, the cylinder body 80 is arranged so as to be spaced apart from and substantially parallel to the pipe body connecting mechanism 12. ing. The cylindrical body 80 has a through hole 84 extending in the axial direction.

Therefore, the speed controller main body 82 incorporated in the through hole 84 will be described. The main body 82 is formed in a substantially columnar shape, and a projection portion (rod portion) 86 whose tip portion is exposed to the outside from the through hole 84 is fitted to the tip portion of the main body 82 made of a metallic material. An annular groove 88 is formed near the tip of the protrusion 86. Inside the through hole 84, an annular protrusion 90 that bites into the main body 82 is formed, and the annular protrusion 90 is formed.
An annular groove 94 located in the through hole 84 is defined between the and the tip portion 92 of the protruding portion 86, and a seal ring 96 is fitted into the annular groove 94.

Furthermore, an annular groove 98 is engraved in the main body 82 above the annular protrusion 90 and having a reduced diameter, and the annular groove 98 incorporates a check valve 100 made of a flexible member. Therefore, the bent tip portion of the check valve 100 is brought into contact with the inner peripheral wall of the cylindrical body 80 defining the through hole 84. The main body 82 is above the annular groove 98 and has a bulged portion 102. The bulging portion 102 abuts the inner peripheral wall portion of the cylindrical body 80 on one side, and the bulging portion 102
The annular groove 104 is further formed by utilizing
A seal ring 106, which presses against the inner peripheral wall of the cylindrical body 80 to achieve a sealing effect, is fitted in the inside of the.

A portion of the bulging portion 102 exposed to the outside from the through hole 84 further bulges further, and the bush 108 is formed in the central portion thereof.
Is fitted. A spiral groove is formed in the bush 108. Therefore, the hole 11 formed along the axis of the spiral groove
0 is once reduced in diameter to become the hole 112. The diameter of the hole portion 112 is expanded again to form a hole portion 114, and the hole portion 114 is a protruding portion of the cylindrical body 80.
Open at the end of 86. In this case, the hole 110 is in communication with the traversing passage 116 (second passage), and the hole 114 is also in communication with the traversing passage 118 (third passage).
Therefore, the rod 122 that is screwed by the picking member 120 is screwed into the hole 110. The rod 122 is temporarily smoothed through a threaded portion, and flanges 124 and 126 are formed at a tip end portion of the rod 122 at predetermined intervals. The flanges 124 and 12
A seal member 128 is fitted between the flange 6 and the flange 12 and
The tip of 6 is formed in a tapered shape to form a valve body 130. The valve body 130 has a seat 1 formed between the hole 110 and the hole 112.
It is configured to seat 32.

The speed control device according to the present invention is basically constructed as described above. Next, its operation and effect will be described.

First, the speed controller main body 82 is incorporated into the through hole 84. As a result, the protruding portion 86 penetrates the through hole 84 and is exposed to the outside of the cylindrical body 80. This causes passage 26 to become passage 116.
To communicate with. Here, the rod 1 via the picking member 120
22 is screwed to disengage the valve body 130 from the seating portion 132 within a predetermined range. As a result, the passage 116 communicates with the holes 112 and 114. The passage 26 is not in direct communication with the passage 118 due to the presence of the check valve 100. That is, the elastic peripheral portion of the check valve 100 is in pressure contact with the inner peripheral wall portion of the cylindrical body 80 defining the through hole 84.

In such a state, as shown in FIG.
86 is used to integrally fit into the port 202 of the cylinder 200. In this case, as shown in FIG. 4 and FIG. 5, the port 202 of the cylinder 200 is fitted with the pipe connecting bodies 300, 300 having substantially the same components as the pipe connecting mechanism 12. Therefore, in the tubular body connecting bodies 300, 300, the same components as those of the tubular body connecting mechanism 12 are designated by the same reference numerals, and the detailed description thereof will be omitted. That is, the tip portion 92 of the protrusion 86 is actually
Is inserted into the release bush 70 of the pipe connection body 300, 300, the tip 92 of the connection body reaches the bottom of the port, and the chuck member
The claws 50 of 44 engage with the annular groove 88. This prevents it from coming off.

The flexible single pipe 400 is attached to the pipe connecting mechanism 12 through the above-described preparation steps. First, the seal member 40, the chuck member 44, the collet 52, and the guide member 62 are previously provided in the first hole portion 20.
And incorporate the release bush 70. That is, the seal member 40 is seated on the end portion of the first hole 20, and after the seal member 40 is mounted and fixed in advance in this manner, the collet 52 is fitted onto the chuck member 44. As a result, collet
The flange 60 of 52 abuts on the upper end portion of the chuck member 44, which rotates.

In this way, the chuck member 44 and the collet 52 are engaged with the upper end portion of the seal member 40 in the integral structure. That is, the inwardly inclined claw portion 50 engages with the curved inner end portion of the seal member 40. Therefore, the guide member 62 is attached to the first hole 20. That is, the guide member 62 made of metal is introduced into the inside of the hole 20, and the annular projection 68 is formed on the inner peripheral wall defining the first hole 20 in a state where the tubular body connecting mechanism 12 is bent. Be laid up.

Then, the release bush 70 is inserted into the guide member 62. Release bush, as explained above
70 has an edge 74 forming a gentler inclination angle than the claw portion 50, and therefore, when the release bush 70 is fitted into the chuck member 44 through the guide member 62, the edge 74 is formed.
Comes into contact with the claw 50 at its tip. The preparatory step is completed in such an assembled state, and the single pipe 400 is introduced inside the release bush 70. That is, the single pipe 400 penetrates the central portion of the release bush 70 with its tip portion inserted into the third hole portion 24, and reaches the lower end portion thereof. As a result of inserting the single pipe 400 into the first hole portion 20 as described above, the passage 400a defined in the single pipe 400 communicates with the passage 26.

Therefore, the pressure fluid is alternately introduced into the two ports of the cylinder via a switching valve (not shown). Ie passage 26
If pressure fluid is introduced from the
To the passage 116, while the check valve 100 is bent to reach the passage 118. Therefore, port 20 of cylinder 200
The pressure fluid is introduced into the interior of the piston 2 through 2, and as a result, the piston 204 moves to the other port side. The piston 204 has moved a predetermined distance, then
The switching valve (not shown) is switched, and the reciprocating motion of the piston 204 is achieved. During this time, since the distance between the valve body 130 and the seating portion 132 is extremely small, the amount of air flowing out from this is small, and the check valve 100 effectively discharges the pressure fluid that is about to be discharged from the passage 118. Restrict. This restricts the backward movement of the piston in the cylinder, and eventually fulfills its role as a speed controller.

[Advantages of the Invention] According to the present invention, as described above, it is possible to incorporate the speed control device into pneumatic equipment such as a cylinder while having an extremely simple structure. Therefore, first, the number of piping steps can be reduced. The advantage is obtained.

Furthermore, since the piping work can be easily performed via the pipe connecting mechanism or the like, the effect of further simplifying this type of process can be obtained. Further, for example, since the speed control device can arbitrarily change the position with respect to the pipe connection mechanism, there is an advantage that piping can be performed without being restricted by the position of the joint portion. This is nothing but an improvement in workability.

Next, FIG. 6 shows another embodiment of the speed control device according to the present invention. In the embodiment shown in FIG.
Particularly, the pipe connecting mechanism 12 is arranged so as to be orthogonal to the axis of the speed controller. This is because the connection of single pipes can be selected more widely.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a speed control device according to the present invention, FIG. 2 is an exploded perspective view of the pipe connecting mechanism shown in FIG. 1, with some parts omitted, and FIG. 3 is a cylinder of the speed control device according to the present invention. 4 is a schematic vertical cross-sectional view showing a state in which the speed control device according to the present invention is connected to a cylinder, FIG. 4 is a partially omitted vertical sectional view showing a state in which the speed control device according to the present invention is connected to the cylinder, and FIG. FIG. 6 is a vertical cross-sectional view with a part omitted of another embodiment of the speed control device of the present invention. 10 …… Speed control device 12 …… Tube connection mechanism 14 …… Speed controller 40 …… Seal member, 44 …… Chuck member 62 …… Guide member 70 …… Release bush, 80 …… Cylinder 82 …… Speed controller Body 86 …… Projection, 100 …… Check valve 130 …… Valve, 132 …… Seat 200 …… Cylinder, 202 …… Port 300 …… Connecting pipe, 400 …… Single pipe

Claims (1)

[Scope of utility model registration request] 1. A pipe connecting mechanism for mounting a pipe for introducing a pressure fluid, and a speed controller integrally provided with the pipe connecting mechanism, wherein the main body of the speed controller comprises a fluid. A removable rod portion is provided in the pressure device, a first passage is provided along the axial direction of the rod portion, and a second passage and a third passage are provided in the rod portion orthogonal to the first passage. A check valve is interposed between the second passage and the third passage, and a valve body that adjusts the fluid flow rate by the rotating operation of the knob member faces the first passage and is introduced from the pipe body. A speed control device, wherein a flow rate of a pressure fluid is controlled by the valve body, and then the pressure fluid is caused to flow to a fluid pressure device through a first passage defined by the rod portion.