JP2510906B2 - Liquid filling device and liquid filling method for anti-vibration rubber parts with liquid chamber - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for filling a liquid chamber of a vibration-proof rubber part with a liquid chamber with liquid.

[0002]

BACKGROUND OF THE INVENTION For example, one type of anti-vibration rubber products used as engine mounts for automobiles includes a component having a liquid chamber inside and a liquid inlet / outlet on both front and back sides as a constituent element. There is one.

When assembling this anti-vibration rubber product, it is necessary to first fill the liquid chamber of the component with a liquid chamber with the liquid and then to assemble the other components in the liquid. To fill a chamber-equipped component with liquid, an operator must immerse it in the liquid tank, hold it in the liquid for a certain period of time, and change its posture and orientation to allow the liquid to flow into the liquid chamber. Was going by.

[0004]

However, in such a method, especially when the viscosity of the liquid is high to some extent, the liquid cannot be sufficiently filled in the liquid chamber even if the component (work) is kept in the liquid for a certain time. However, there has been a problem that this adversely affects the anti-vibration performance of the anti-vibration rubber product.

In addition, this method tends to cause variations among workers, and since the liquid is allowed to naturally flow into the liquid chamber, it takes a long time to fill the liquid, resulting in poor productivity. It was happening.

[0006]

The present invention has been made to solve such a problem, and its gist is to immerse a container-shaped body in a liquid tank and to put it inside the container-shaped body. The anti-vibration rubber component in the open shape portion on one end side of the formed pressure chamber,
It is seated with its one surface facing the pressurizing chamber to close the pressurizing chamber, liquid is pumped into the pressurizing chamber through an introduction passage, and the anti-vibration rubber component is pressed into the container-like body by pressing means. After pressing, the liquid in the pressure chamber is forced to flow into the liquid chamber from the inlet / outlet of the anti-vibration rubber part on the side facing the pressure chamber.
The liquid is filled in the liquid chamber by passing through the liquid chamber and flowing out from the inlet / outlet on the other surface side.

[Operation and Effect of the Invention] According to the present invention, a vibration-proof rubber product (work) is set so as to close the opening of the pressurizing chamber of the container, and is pressed by the pressing means. When the liquid is pumped into the pressurizing chamber through the introduction passage, the liquid in the pressurizing chamber is forced to flow into the liquid chamber of the work through the inlet / outlet on the side facing the pressurizing chamber, and then passes through the liquid chamber. It flows out from the entrance on the side surface.
As a result, the air in the liquid chamber is sufficiently extracted, and the liquid is filled in every corner of the liquid chamber.

In the case of the present invention, the liquid is forced to flow into the liquid chamber of the work on the basis of the pressing force of the pressurizing chamber. Therefore, unlike the case of natural inflow, the liquid has a high viscosity. Liquid can be filled into every corner of the chamber, contributing to the improvement of the anti-vibration performance of anti-vibration rubber products.

Further, since the liquid is forced to flow in, the work can be completed in a short time and the productivity is improved. Further, according to the present invention, not only the liquid filling work can be mechanized and automated, but also there is no variation among the workers during the liquid filling, and the quality reliability is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 6, reference numeral 10 denotes a vibration-proof rubber product used as an engine mount for automobiles.
Reference numeral 2 is a mounting bolt, and 14 is a rubber elastic body. A main liquid chamber 18 is formed inside a cylindrical metal member 16 fixed to the rubber elastic body 14, and a liquid is stored therein.

At the upper opening of the main liquid chamber 18 in the figure, the damper component 2 is provided inside the tubular portion of the metal fitting bracket 20.
2. A rubber diaphragm 24 is arranged so as to close the main liquid chamber 18, and they are fixed by caulking the upper end portion 26 of the metal fitting 16.

As shown in FIG. 7, the damper part 22 has a first liquid chamber 32 and a second liquid chamber 34 between metal fittings 28 and 30, which are connected to each other by a communication port 36 of the middle metal fitting. It is in communication. In addition, inlets and outlets 38 and 40 are provided on both front and back surfaces of the damper component 22 in each of the liquid chambers 32 and 34.

In the center of the damper component 22, independent liquid chambers 44 and 46 defined by a movable partition 42 made of rubber are formed, and inlets and outlets 48 and 50 are formed in the respective liquid chambers.
Is provided.

FIGS. 2 to 5 show an apparatus of this example for filling the liquid in the liquid chamber of the damper component 22 (hereinafter referred to as a work) in the vibration-proof rubber product 10. In these drawings, 52 is a liquid tank in which a column 54 is erected,
A support block 56 is arranged at the upper end of the column 54.

The upper end of the support block 56 is in the shape of an upward container, and a pressurizing chamber 58 is formed therein as shown in FIG. The support block 56 and the column 54 are provided with introduction passages 60 and 62 so as to communicate with the pressurizing chamber 58.
The liquid is pumped into the pressurizing chamber 58 through 62.

Reference numeral 64 denotes a rubber seal member which constitutes a peripheral wall portion of the pressurizing chamber 58.

On the outer side of the seal member 64, bank portions 96 are provided so as to face each other as shown in FIG. 4, and a circumferential portion between these bank portions 96 and 96 is a space. There is. This vacant space is for allowing the hand 55 to grip the work 22 as shown in FIG.

As shown in FIG. 2, a rotary table 66 is disposed on the side of the support column 54, and the rotation of the table 66 causes the receiving jig 68 to move to the main body 70 of the anti-vibration rubber product 10.
With the set, it is conveyed to a predetermined processing position and stopped there.

On the upper side of the support block 56, a chuck 72 is arranged downward. The chuck 72 has a tubular shape as a whole, and has a large diameter portion 74 at the lower end as shown in FIG. 5. The annular lower end surface of the large diameter portion 74 is pressed against the work 22, and The work 22 can be attracted by a magnet 76 arranged at a predetermined position on the end face.

On the other hand, the base end side of the chuck 72 is fixed to a supporting plate 78, and the entire chuck 72 is moved up and down together with the supporting plate 78 by a cylinder 80.

A liquid injection rod 82 is provided inside the chuck 72.
Is provided, and the liquid injection rod 82 is connected to the lifting cylinder 94.
The vertical movement is made relative to the chuck 72.

A liquid introduction passage 84 is formed inside the liquid injection rod 82, and the liquid pressure-fed through the port 86 is guided to the introduction passage 84 and flows down to be discharged from the opening at the tip. It has become.

A seal member 88 is attached to the lower end of the liquid injection rod 82, and the annular projection 9 of the seal member 88 is attached.
0 is pressed against the work 22.

Next, the operation of this apparatus will be described together with the procedure for filling the work 22 with the liquid. First, the work 22 is conveyed by the hand 55 and placed on the support block 56 in the liquid tank 52. Then, the chuck 72 and the liquid injection rod 82 are lowered together with the support plate 78, the chuck 72 presses the work 22 onto the support block 56 at the lower end surface thereof, and the liquid injection rod 82 is pushed down by the cylinder 94 and the tip thereof. Is pressed against the center of the work 22. FIG. 1 (A) shows this state.

In this state, the pressurizing chamber 5 on the support block 56 side
Liquid is pumped into the inside of the pressurizing chamber 8, and the liquid is fed from the pressurizing chamber 58 to the work 2
2 is forcedly flown into the liquid chambers 32, 34 of the work 22 through the inlet / outlet 38, and further passes through the liquid chambers 32, 34 to the outside from the inlet / outlet 40 on the upper surface side of the work 22 in the figure. leak.

The liquid is filled in the liquid chambers 32 and 34 by the forced inflow, passage, and outflow of the liquid, and the internal air is extracted to the outside.

On the other hand, the liquid discharged downward from the tip of the liquid injection rod 82 is supplied from the inlet / outlet port 50 of the work 22 to the liquid chamber 46.
The liquid is forcedly flowed into the inside and filled in the liquid chamber 46.

After the above operation is completed, the chuck 72
And the liquid injection rod 82 is retracted upward,
The hand 22 changes the direction of the work 22 between the front and back (is inverted), and is set on the support block 56 again.

Next, as shown in FIG. 1B, the chuck 72 and the liquid injection rod 82 are lowered again to discharge the liquid from the lower end of the liquid injection rod 82, and the liquid in the center of the work 22 is discharged. The chamber 44 is filled with the liquid.

In this way, the work 22 is reversed and the liquid is injected from the liquid injection rod 82 in two steps. The reason is that the liquid chambers 44 and 46 in the center of the work 22 are made of rubber. It is because it is partitioned by the movable partition 42 and is not in a communication state.

On the other hand, the liquid chamber 3 on the outer peripheral side of the work 22
Since 2 and 34 are communicated with each other, it is not always necessary to inject the liquid in two times. However, you are free to do so.

Now, when the filling of the work 22 with the liquid is completed, the chuck 72 and the liquid injection rod 82 are next.
Retreats. At this time, the work 22 is attracted by the magnet 76 of the chuck 72 and pulled up.

Next, the chuck 72 and the liquid injection rod 82 move to the right in FIG. 2 and then descend again to place the work 22 on the main body 70 of the anti-vibration rubber product held by the receiving jig 68. Put.

After this, the rotary table 66 rotates to convey the work 22 to the caulking position, where caulking is performed.

The embodiments of the present invention have been described in detail above, but this is merely an example, and the present invention can be applied to other vibration-proof rubber parts, etc. within a range not departing from the gist thereof. It can be configured in a form in which various changes are made based on the knowledge of the trader.

[Brief description of drawings]

FIG. 1 is an operation explanatory view of a liquid filling device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main parts of the device.

FIG. 3 is a sectional view of a further main part of FIG.

FIG. 4 is a plan view of a main part of the apparatus shown in FIG.

5 is a cross-sectional view of an essential part of a part of the apparatus shown in FIG. 2 different from that in FIG.

FIG. 6 is a sectional view showing an example of a vibration-proof rubber product to which the present invention is applied.

FIG. 7 is a structural explanatory view of a damper component in FIG.

[Explanation of symbols]

 22 Damper Parts 32, 34 Liquid Chamber 38, 40 Inlet / Outlet 52 Liquid Tank 56 Support Block 58 Pressurizing Chamber 60, 62 Introducing Passage 72 Chuck 82 Liquid Injection Rod

Claims (2)

(57) [Claims] 1. A device for filling a liquid chamber of a vibration-proof rubber part, which has a liquid chamber inside and a liquid inlet / outlet on each of the front and back sides, and which comprises (a) a liquid tank and (b) A pressurizing chamber that is immersed in the liquid tank and that stores the liquid to be filled in the liquid chamber and pressurizes the liquid is formed inside, and one end side of the pressurizing chamber has an open shape, and the open shape A container-like body for closing the pressurizing chamber by seating the anti-vibration rubber part on one side with one surface side facing the pressurizing chamber; and (c) an introduction passage for pumping liquid into the pressurizing chamber. (D) A pressing means for pressing the anti-vibration rubber component against the container-like body is provided, and the liquid in the pressurizing chamber is supplied from the inlet / outlet on the one surface side of the anti-vibration rubber component facing the pressurizing chamber. It is characterized in that, after being forcedly flown into the chamber, the liquid chamber is allowed to pass through and the liquid is allowed to flow out from the inlet / outlet on the other surface side to the outside. With the liquid chamber anti-vibration rubber parts of a liquid filling apparatus. 2. A method of filling a liquid into an anti-vibration rubber part having a liquid chamber inside, and liquid inlets and outlets on each of the front and back surfaces, wherein a container-like body is provided in a liquid tank. The anti-vibration rubber component is seated in an open shape portion on one end side of the pressurizing chamber formed inside the container body by being dipped so that one surface side thereof faces the pressurizing chamber to form the pressurizing chamber. The liquid is pumped into the pressurizing chamber through the introduction passage and the anti-vibration rubber part is pressed against the container-like body by pressing means to press the liquid in the pressurizing chamber to the pressurizing part of the anti-vibration rubber part. The liquid is filled in the liquid chamber by forcibly flowing into the liquid chamber from the inlet / outlet on the one surface side facing the chamber and then passing through the liquid chamber and flowing out to the outside from the inlet / outlet on the other surface side. Liquid filling method for anti-vibration rubber parts with liquid chamber.