JP2004003528A - Part incorporation and liquid sealing device of liquid sealing type vibration control mount - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and efficiently perform part incorporation and liquid sealing works in the assembly of liquid sealing type vibration control mount using a liquid tank having small capacity without immersing a main body component into liquid and causing erroneous operation and suspension. <P>SOLUTION: The liquid tank 20 arranged in an upper part is lowered for the main body component 1 held upward, an opening part 22 provided in a bottom part 21 is assembled in a seal condition, liquid is supplied onto the bottom part 21 to make it flow into the inside of the main body component 1, and liquid is stored on the bottom part 21. Height of liquid level is detected by a liquid level detection pipe 40. When it reaches a fixed level, a component such as a partitioning body is incorporated into the main body component 1 in liquid to seal the liquid. Then, the liquid is discharged from above the bottom part so that the liquid tank 20 leaves the main body component 1. A valve means 45 for suppressing pulsation of liquid level is provided in the liquid level detection pipe 40 to detect liquid level accurately and prevent erroneous operation and suspension when incorporating the component. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filling device and a component assembling method for assembling a liquid filling type vibration damping mount used to support an automobile engine or the like in a vibration damping manner.
[0002]
[Prior Art and Problems to be Solved by the Invention]
As a mount for supporting an automobile engine or the like so as not to transmit its vibration to the vehicle body, for example, as illustrated in FIG. 12, a cylindrical main body fitting 2, a rubber elastic body 3 as a vibration isolating base, and a diaphragm 4 are provided on the chamber wall. The interior of the main body that forms a part of the liquid and encloses the liquid is divided into, for example, upper and lower liquid chambers 6a and 6b by a partition body 5, and both liquid chambers 6a and 6b are communicated by an orifice 7 having the partition body 5. A liquid-filled anti-vibration mount is known in which the orifice 7 attenuates and absorbs vibrations due to liquid flow resistance and the vibration-proof effect of the rubber elastic body 3.
[0003]
The anti-vibration mount in which such a liquid is sealed is formed by vulcanizing and bonding a rubber elastic body 3 to an opening on one end side of a cylindrical main body fitting 2 and vulcanizing and bonding a mounting bracket 8 to the rubber elastic body 3. The main body part 1 having a space for enclosing a liquid therein is formed, and parts such as the partition body 5 and the diaphragm 4 are incorporated into the main body part 1 and, at the same time, the liquid is sealed inside to assemble the main body part 1.
[0004]
Conventionally, in assembling parts and assembling liquids in the assembly of the above-described vibration-proof mount, a considerably large liquid tank is used, and in this liquid tank, a setting step of holding main body parts in liquid, a partition member, a diaphragm, etc. The process of assembling the parts into the main body parts, the caulking step to fix the assembled parts, and the step of removing the assembled mount from the liquid tank were set, and the parts assembling work was to be performed in the liquid. .
[0005]
However, in the case of the above-described conventional anti-vibration mount incorporating components and a liquid encapsulation method, a large liquid tank, a complicated and large-scale transport means are required, and the installation space becomes large, and a step change operation and the like are required. Trouble handling and maintenance were troublesome. In addition, foreign matters such as foundry sand and rubber scraps are easily brought into the liquid tank, and this is likely to cause incorporation defects such as air bubbles. Further, there is a problem that cleaning work of the outer peripheral portion of the mount product after assembly becomes troublesome.
[0006]
In order to solve the above-mentioned conventional problems, the present applicant has proposed a component mounting and liquid encapsulation method using a relatively small liquid tank as disclosed in Japanese Patent Application Laid-Open No. H11-230235.
[0007]
In this proposed method, a main body part is held in a substantially upright state facing upward, and a liquid tank disposed so as to be able to ascend and descend and having an opening at a part of the bottom is lowered above the main body part, and the opening is lowered. Is fitted to the outer periphery of the main body part so as to maintain a sealed state, a liquid is supplied onto the bottom having the opening of the liquid tank, and the liquid is supplied from the opening of the main body part to the inside of the main body part. While flowing into the space, a required amount of liquid is stored on the bottom portion, and in this state, a component assembling device such as a multi-axis articulated robot or the like is operated, and components such as a partition body and a diaphragm are stored in the stored liquid. After being immersed in the air and turning off the air, it is fitted into the inside of the main part and the opening and incorporated, and after sealing the liquid, the liquid stored in the liquid tank is discharged from the bottom part, and the liquid tank is detached from the main part. It is to let.
[0008]
By the way, when assembling parts in a state where the liquid is supplied and stored on the bottom of the liquid tank, the liquid level of the stored liquid is equal to or higher than a certain level from the viewpoint of air cutting operation of parts and prevention of air bubble mixing. It is required to secure In other words, the smaller the liquid amount and the lower the liquid level, the more difficult the air cutting operation is, and the more easily air bubbles are mixed into the sealed liquid. Therefore, it is necessary to appropriately replenish the liquid in the liquid tank as the liquid decreases each time the liquid is filled.
[0009]
Therefore, a liquid replenishing means such as a pump for replenishing liquid to the liquid tank is provided, and a liquid level detecting tube for detecting the liquid level is provided. It has been considered to detect that the level has been reached, and to control the drive so as to operate the component assembling apparatus based on the detection signal. When the liquid level does not reach a certain level, the liquid is supplied by operating the supply means based on the detection signal.
[0010]
However, as described above, in a case where the liquid is supplied onto the bottom of the liquid tank for each of the parts assembling and liquid enclosing operations, the flow action at the time of the liquid supply, and furthermore, the hand of the parts assembling apparatus is used. Oscillates so that the liquid level goes up and down due to the impact at the time of assembling parts. Accordingly, the liquid also pulsates up and down inside the liquid level detection tube, that is, inside the liquid level detection tube. That is, due to the pulsation, the liquid level detecting tube detects that the liquid level has reached a certain level earlier than the actual liquid level rise, or the liquid level height is equal to or higher than a certain level, Is repeatedly detected.
[0011]
As a result, the operation start of the component assembling device is accelerated, and the air turning operation at the time of assembling the component becomes insufficient, so that air bubbles may be mixed. In addition, erroneous operation such as frequent interruption of the operation of the component-incorporating device is caused, which also causes a device failure and impairs durability.
[0012]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems in the above-described component assembly and liquid enclosing apparatus utilizing the liquid tank lifting / lowering and liquid supply / drainage functions. The liquid level can be accurately detected, the apparatus can be reliably controlled based on this detection signal, and the work of assembling parts and filling the liquid can be performed efficiently.
[0013]
[Means for Solving the Problems]
The present invention relates to a component assembling and liquid sealing device in assembling a liquid-sealed anti-vibration mount, in which a main body of the anti-vibration mount having a space inside and opening at one end side is directed upward with the opening. A main body set holding portion that supports and fixes the main body set in a substantially upright state, and an opening portion that is disposed above the main body set holding portion so as to be able to move up and down and that can fit in a sealed state with the outer periphery of the main body component is provided at a bottom portion. A liquid tank capable of storing a liquid on the bottom portion in a state where the liquid container is assembled to the main body part by fitting the opening, and the liquid tank is supported above a main body set holding portion, and A liquid tank elevating means for lowering the opening so as to fit and lifting the main part so as to be detached from the main part, and a bottom part having the opening corresponding to an assembling operation of the liquid tank with respect to the main part. Supply and drain liquid A liquid supply / discharge unit for supplying liquid to the liquid tank, and a partition or a diaphragm for the main body component in the stored liquid in a state where the liquid is stored on the bottom in the liquid tank. In a component incorporation and liquid encapsulation device comprising a component incorporation device that performs an incorporation operation by holding and moving components such as
The liquid tank is provided with a liquid level detecting pipe for detecting the liquid level when the liquid is supplied onto the bottom, and a valve means for suppressing pulsation of the liquid level is provided on the liquid level detecting pipe. The operation of the component assembling apparatus is controlled based on a liquid level detection signal from the liquid level detecting tube.
[0014]
According to this component incorporation and liquid encapsulation device, the main body component of the anti-vibration mount is held by the main body setting means in a substantially upright state with the opening facing upward, and the liquid tank disposed above is lowered, The opening in the bottom is fitted into the main body part in a sealed state and assembled. When the liquid is supplied to the bottom of the liquid tank in this way, a part of the liquid flows into the internal space through the opening of the main body component and is filled, and a predetermined amount of the liquid is stored on the bottom.
[0015]
At this time, the liquid level above the bottom of the liquid tank is detected by the liquid level detecting tube. When the liquid level rises above a certain level, the component assembling device operates based on a detection signal from a liquid level detecting tube for detecting the level. In particular, since the liquid level detecting pipe is provided with a valve means for suppressing the pulsation of the liquid level inside the liquid level detecting pipe, the liquid is swung so as to largely move up and down in the liquid tank by the action of supplying the liquid to the bottom. Even if the liquid level is detected, the gas level is suppressed by the valve means in the liquid level detection tube, so that the liquid level moves slowly and pulsation is suppressed, so that the liquid level can be accurately detected. .
[0016]
Then, based on the detection signal when the liquid level height is detected above a certain level, the component assembling apparatus operates to hold the components such as the partition body and the diaphragm, and sequentially immerse the stored liquid in a tilted posture. After performing an air severing operation, for example, a horizontal posture, the liquid is sealed by fitting into the opening of the main body part fitted in the bottom opening of the liquid tank. Even if the liquid in the liquid tank oscillates during this assembling operation, the liquid level does not excessively pulsate in the liquid level detection tube, and no malfunction due to pulsation occurs. Thereafter, the component assembling device is returned to the original state, the liquid is discharged from the bottom of the liquid tank, and then the liquid tank is raised to be separated from the main body parts. Then, the holding action of the main body set holding portion is released, and the assembled anti-vibration mount is conveyed from the main body set holding portion to a process such as caulking to complete the assembly.
[0017]
As described above, according to the component assembling and liquid enclosing apparatus of the present invention, a relatively small liquid tank is moved downward with respect to the main body part without moving the main body part while holding the main body part in a predetermined position. Assembling, so as to be detached by the ascending action, and further, to supply or discharge the liquid from the bottom to the bottom, to perform an assembling operation by a component assembling apparatus, and immerse the entire body part in the liquid. Parts can be easily assembled without using any of the components, and the entire device can be made compact.
[0018]
In particular, the liquid level at the time of liquid supply onto the bottom of the liquid tank is accurately detected by suppressing pulsation, so that the operation of the component assembling device becomes too fast or the operation is interrupted. There is no problem, and the work of assembling parts can be performed efficiently, and the incorporation of air bubbles can be prevented. Further, the occurrence of a failure in the device can be prevented, and the durability is improved.
[0019]
The liquid level detection pipe has a vertical detection pipe connected to the lower part of the liquid tank so that the liquid can flow therein, and at least a part of the detection pipe is provided with a transparent pipe section, and the transparent pipe section is provided. Is provided with a level sensor for detecting the liquid level of the inflow liquid, and is provided so as to transmit a detection signal of the level sensor to the device control unit. Thus, the liquid level detection by the level sensor is accurately performed. Further, by adjusting the position of the level sensor, it becomes easy to set the optimum liquid level level according to the form of the anti-vibration mount and the form of the parts to be assembled.
[0020]
The valve means for suppressing the pulsation is provided in an exhaust part of the liquid level detecting pipe, and comprises an exhaust throttle valve for limiting an exhaust amount when the liquid flows in. Thereby, for example, when the liquid flows into the detection pipe with the rise of the liquid level on the bottom of the liquid tank and the gas in the detection pipe is exhausted to the atmosphere, this exhaust action is performed by the exhaust throttle valve. As a result, the inflow speed of the liquid into the detection pipe is controlled to suppress the pulsation of the liquid, so that the liquid level can be accurately detected.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described based on examples shown in the drawings.
[0022]
FIG. 1 is a front view showing an embodiment of a component assembling and liquid filling apparatus according to the present invention, FIG. 2 is a side view of a main part of the apparatus, and FIG. 3 is a plan view of a main part of the apparatus.
[0023]
In the figure, reference numeral 10 denotes a main body set holding section that supports and fixes the main body component 1 at a predetermined set position on the machine base 11. The main body set holding section 10 has a support member 13 of the main body part 1 fixedly mounted on a part of a plate 12, and is a main body part in a vibration proof mount as exemplified in FIG. 12, that is, a cylindrical main body fitting. A rubber elastic body 3 as a vibration isolating base is fixed to the opening at one end side by vulcanization bonding means, and a mounting bracket 8 is further fixed to the rubber elastic body 3 and has an internal space 9 for sealing a liquid. The main body component 1 can be supported with the opening facing upward.
[0024]
Reference numeral 14 denotes a component setting jig which is provided upright on the plate 12 in the vicinity of the support member 13, and can supply and place the partition member 5 and the diaphragm 4 inside the anti-vibration mount at a predetermined fixed position. It has become.
[0025]
As shown in FIGS. 6 to 8, the main body set holding section 10 includes fixing means 15 for holding the main body component 1 supported by the support member 13 in a fixed state.
[0026]
The fixing means 15 comprises a cylinder device 16 operated by hydraulic pressure or pneumatic pressure, and a chuck device 17 fixed to the front end of an output rod 16a thereof. In the state of being supplied on the material 13, the cylinder device 16 is operated by a button operation or the like to advance the chuck device 17, and the main body component 1 is chucked by the chuck device 17 and fixed and held at a predetermined position. It is provided in.
[0027]
The chuck device 17 is provided with a pair of claw pieces 18a, 18a and 18b, 18b that can be opened and closed at upper and lower positions, respectively, and the upper claw pieces 18a, 18a are provided so as to sandwich the main body component 1 from both sides. ing. The lower claw pieces 18b, 18b are engaged with substantially U-shaped engaging members 19, 19 disposed on both sides of the receiving member 13 so as to oppose each other, so that the chuck device 17 is displaced upward. It is provided to be regulated.
[0028]
The receiving member 13 is configured so as to be able to cope with a plurality of forms of the main body component 1 in consideration of the change of the vibration-proof mount to be assembled. For example, as shown in FIG. 9, a height adjustment spacer 13a is provided so that the height can be adjusted.
[0029]
Reference numeral 20 denotes a liquid tank supported by the liquid tank elevating means 30 above and below the main body set holding section 10 so as to be able to move up and down.
[0030]
The liquid tank elevating means 30 lowers the liquid tank 20 in a state where the main body component 1 is set and fixed to the main body set holding portion 10 and assembles the main body part 1 as described later. 20 is provided so as to be detached from the main body component 1 and raised.
[0031]
The liquid tank elevating means 30 is configured using a single-axis actuator. For example, in the figure, a guide 32 disposed in a direction perpendicular to the upper surface of the machine base 11 and a guide 32 fitted to the guide 32 so as to be able to move up and down are provided on the front surface of a support substrate 31 erected on the machine base 11. And a screw shaft 35 meshed with the slider 33 and driven to rotate by a driving means 34 such as a servomotor. The operation of the driving means 34 causes the screw shaft 35 to rotate. 33 is provided so as to move up and down (up and down). The liquid tank 20 is mounted on a mounting plate 36 fixed to the slider 33, and is provided so that the liquid tank 20 moves up and down as the slider 33 moves up and down. The liquid tank lifting / lowering means 30 is configured to be able to finely control the speed, position, and the like when assembling the liquid tank 20 to the main body component 1.
[0032]
In addition to the above, the slider 33 may be provided so as to be moved up and down by other means such as a cylinder device.
[0033]
As shown in FIG. 4 and FIG. 5 in an enlarged manner, the liquid tank 20 has an opening 22 which can be fitted in a sealing state with respect to the outer periphery of the upper part of the main body part 1 at a position corresponding to the main body setting position on the bottom 21. Is provided. A seal member 50 such as an oil seal is attached to the inner periphery of the opening 22, and when the liquid tank 20 is lowered, the seal member 50 is elastically fitted to the outer periphery of the main body component 1 to maintain a sealed state. It is provided as follows. Then, when assembled to the main body component 1, a predetermined amount of liquid can be stored on the bottom portion 21.
[0034]
The seal member 50 is detachably fixed to the bottom portion 21, and is replaced with a seal member having a form and size corresponding to the type of anti-vibration mount to be assembled, in particular, the form of the main body component 1. Provided to be able to. For example, as shown in an enlarged manner in FIGS. 5 and 8 and the like, the seal member 50 is provided with a rubber elastic body on the inner periphery of an annular outer body 51 made of a rigid material such as a metal such as stainless steel or aluminum or a synthetic resin. In the case where the sealing body 52 is fixed by vulcanization bonding or press-fitting means or the like, the outer peripheral body 51 is screwed to the inner circumference of the opening 22 of the bottom 21 of the liquid tank 20 by screwing from the bottom lower surface side. Removably fixed. FIG. 9 shows an example in which the seal member 50 is changed according to the change of the main body part 1. In this example, the outer peripheral body 51 of the seal member 50 projects from the upper surface of the bottom 21 in an upper end inner periphery, and the upper end of the main body component 1 fitted to the seal body 52 abuts on the inner periphery. It has a flange 56.
[0035]
In the illustrated embodiment, the opening 22 is provided at the bottom 21 at one end in the longitudinal direction of the liquid tank 20 as a liquid supply / discharge means for supplying and discharging the liquid onto the bottom 21 of the liquid tank 20. A recess 24 is provided in a portion except for the vicinity of the opening 22, for example, in a portion on the other end side in the longitudinal direction, so that the recess 24 is dropped downward so that a required amount of liquid W can be stored. A filling float 25 having a convex portion 25a on the lower surface side that can be fitted into the cylinder 24 is connected to the cylinder device 26 and is provided so as to move up and down by the operation of the cylinder device 26. The liquid W stored in the concave portion 24 can be supplied to the bottom 21 or discharged from the bottom 21.
[0036]
That is, when the filling float 25 descends and fits into the concave portion 24, the liquid W in the concave portion 24 is pushed out onto the bottom 21 and stored at a predetermined liquid level, and the filling float 25 rises. This allows the liquid W on the bottom 21 to flow back into the recess 24.
[0037]
The volume of the concave portion 24 and the volume of the filling float 25 are set to a predetermined liquid level necessary for air cutting operation of parts to be described later on the bottom 21 outside the filling float 25 when the filling float 25 is fitted. Is set so that
[0038]
Reference numeral 27 denotes a replenishing pipe connected to replenishing means (not shown) such as a pump for replenishing the liquid tank 20 with liquid, and is connected to the bottom of the recess 24. The liquid replenishing means reduces the liquid for each liquid enclosing operation. Therefore, when the liquid is supplied by the liquid supply / discharge means, that is, when the liquid is supplied by lowering the filling float 25, the bottom of the liquid tank 20 is closed. The liquid tank 20 is provided so as to appropriately supply the liquid so that a certain amount or more of the liquid can be stored on the liquid tank 21. Usually, a pump as a liquid replenishing means is provided to operate based on a detection result of a liquid level described later. A discharge port (not shown) for discharging the liquid in the liquid tank 20 at the time of maintenance, inspection, cleaning, or the like is also provided at the bottom of the concave portion 24.
[0039]
As the means for supplying and discharging the liquid onto the bottom 21 of the liquid tank 20, various means can be used in addition to the above, for example, using a supply and discharge mechanism using a pump means. This is particularly preferable because the mechanism is simple and the liquid supply / discharge operation can be performed quickly and reliably.
[0040]
Reference numeral 40 denotes a liquid level detecting tube for detecting the liquid level when the liquid is supplied onto the bottom portion 21 by the liquid supply / discharge means. The liquid level detecting tube 40 will be described later based on a liquid level detecting signal from the liquid level detecting tube 40. The operation of the component assembling device 60 is controlled.
[0041]
The liquid level detection pipe 40 has a vertical detection pipe 41 connected to the lower part of the liquid tank 20 so that the liquid can flow therein, and at least a part of the detection pipe 41 is made of a transparent synthetic resin tube or the like. A transparent tube 42 is provided, and a level sensor 43 for detecting the liquid level of the inflowing liquid is provided in the transparent tube 42 so that the transparent tube 42 can be moved up and down together with the liquid tank 20. 44 is a support member for the level sensor 43.
[0042]
The liquid level detection pipe 40 is provided with an exhaust section that is open to the atmosphere above the detection pipe 41, restricts the exhaust action at the time of liquid inflow, controls the liquid inflow speed, and controls the inside of the detection pipe 41. There is provided a valve means 45 for suppressing the pulsation of the liquid surface at the time. As the valve means 45, an exhaust throttle valve or the like for an automobile, which restricts the amount of exhaust when the liquid flows, is preferably used. Of course, other throttle valves, needle valves, etc. having the same function as this are used. Can be. In any case, it is preferable to attach the detection pipe 41 to the detection pipe 41 so that it can be easily attached and detached with a suitable one-touch joint.
[0043]
The liquid level detection tube 40 is for controlling the operation of a component mounting device described later based on the detection signal, and detects a liquid level height equal to or higher than a certain level set according to the component form or the like. The detection signal is transmitted to, for example, a device control unit (not shown) for controlling the driving of the device of the present invention, and is provided so as to operate a component incorporating device described later.
[0044]
Reference numeral 60 denotes a component incorporating device such as a multi-axis articulated robot. A hand device 61 is provided with a chuck device 62 having a pair of openable and closable claw pieces 63, 63 at the distal end thereof. The component supply incorporation device 60 is controlled based on a detection signal from the liquid level detection pipe 40, and detects that the liquid level at the time of liquid supply onto the bottom 21 of the liquid tank 20 has reached a certain level. When a detection is made, the operation is started by a signal from the device control unit receiving the detection signal, and the operation is stopped when the liquid level is below a certain level.
[0045]
The component assembling device 60 includes a position of the main body component 1 set and fixed on the main body set holding portion 10, a position of each component set on the component setting jig 14, and a liquid tank mounted on the main body component 1. In accordance with the positional relationship such as the height of the liquid tank 20 and the liquid level on the bottom 21 in the liquid tank 20, the assembling operation with the main body component 1 by lowering the liquid tank 20, and further according to the liquid level, The parts such as the partition member 5 and the diaphragm 4 set in the set part setting jig 14 are sequentially chucked by the chuck device 62 and moved above the liquid tank 20 attached to the main body part 1. Is set to perform a predetermined air cutting operation, for example, an air cutting operation such as immersing a chucked component in a liquid in a tilted posture, or an assembling operation described later, and teaching is performed. Further, it is provided so as to correct the operation as needed.
[0046]
Next, a description will be given of a case where each component is incorporated into the main body component 1 and the liquid is sealed in assembling the liquid-sealed anti-vibration mount using the apparatus of the above embodiment.
[0047]
First, the main body component 1 having a space inside and opening at one end side is supplied to and set on the support member 13 of the main body set holding portion 10 with the opening facing upward in a substantially upright state. In addition, components such as the partition body 5 and the diaphragm 4 are placed at predetermined positions on the component setting jig 14.
[0048]
In this way, the operation of the apparatus is started by button operation or the like, and in the main body set holding section 10, the cylinder apparatus 16 of the fixing means 15 is actuated, and the tip chuck apparatus 17 advances, and the main body part 1 is chucked by the chuck apparatus 17. And fixedly held at the set position.
[0049]
When the main body component 1 is fixed, the liquid tank lifting / lowering means 30 is actuated, and the liquid tank 20 is lowered together with the slider 33 as shown by a chain line in FIG. 22 is fitted to the outer periphery of the main body component 1 held in alignment therewith, and is assembled so as to maintain a sealed state via a sealing member 50 provided in the opening 22.
[0050]
In the liquid tank 20, a predetermined amount of liquid W is stored in a concave portion 24 provided at a part of the bottom portion. After the assembly is completed, the liquid W in the concave portion 24 is removed from the main body part 1 Is pushed out onto the fitted bottom 21 and is held and stored at a predetermined liquid level required for assembling parts.
[0051]
That is, the filling float 25 provided above the liquid tank 20 is lowered by the operation of the cylinder device 26, and the convex portion 25a on the lower surface is fitted into the concave portion 24 as shown in FIG. The liquid W is pushed out onto the bottom 21 to which the main body part 1 is attached, and flows into the internal space 9 of the main body part 1 from the opening end of the main body part 1 protruding from the bottom part 21. At this time, air bubbles are prevented from adhering and remaining on the inner surface of the main body part by means such as applying vibration to the main body part 1 as necessary.
[0052]
Further, when the liquid is supplied onto the bottom 21, it is detected by the liquid level detecting pipe 40 connected to the liquid tank 20 that the liquid level of the liquid W has reached a certain level, and the liquid level height is detected. Detects a height equal to or higher than a certain level, the component assembling device 60 operates based on the detection signal.
[0053]
The device control section drives the component assembling device 60 when receiving the detection signal of the liquid level higher than the certain level. If the liquid level does not reach a certain level, a liquid supply means such as a pump is operated to supply a predetermined amount of liquid to the liquid tank 20.
[0054]
In the liquid level detection by the liquid level detection tube 40, the liquid supply onto the bottom 21 having the opening 22 of the liquid tank 20, particularly the flow action at the time of the liquid supply due to the descent of the filling float 25, is performed. The liquid will oscillate so as to move up and down, and at the same time, the liquid level will also pulsate up and down inside the detection pipe 41 of the liquid level detection pipe 40. By restricting the discharge of gas by the action of the valve means 45, the liquid inflow speed in the detection pipe 41 is reduced to suppress a rapid rise in the liquid level, and pulsation in the vertical direction of the liquid level can be suppressed. Therefore, the liquid level can be accurately detected by the level sensor 43, and malfunction of the detection signal due to pulsation can be prevented.
[0055]
Then, the component assembling device 60 operated by the detection signal first chucks the partition body 5 with the chuck device 62 at the tip of the hand 61 among the components supplied and set at a predetermined position on the component setting jig 14. Then, as shown in FIG. 10, while moving above the liquid tank 20, the chucked partition body 5 is lowered while maintaining the chucked partition body 5 in a predetermined inclination posture, and immersed in the liquid W stored in the liquid tank 20 to air. After the cutting, the liquid W is returned to a horizontal position, aligned with the main body component 1, and then fitted into the opening end and assembled. At this time, the partition body 5 can be assembled by being pushed to a predetermined position of the main body component 1 by the cylinder 65 for mounting the partition body provided above. Further, even if the liquid slightly oscillates by this operation, it hardly oscillates in the liquid level detecting tube 40, so that the level sensor 43 does not malfunction.
[0056]
Thereafter, the hand 61 is returned to the original position, and the diaphragm 4 set on the component setting jig 14 is chucked by the chuck device 62 of the hand 61 in the same manner as described above, and is placed on the liquid tank 20. After moving, the diaphragm 4 is lowered while holding the diaphragm 4 in a predetermined inclination posture and immersed in the stored liquid W to perform air cutting, and then returned horizontally in the liquid W to be aligned with the main body component 1 and opened. (FIG. 11). Further, if necessary, the cylinder 4 is pressed in the same manner as described above, and the diaphragm 4 is assembled at a predetermined position of the main body part 1, and the liquid is held in a sealed state.
[0057]
In this way, after the components to be assembled are sequentially chucked by the action of the hand 61 and assembled into the main body component 1, the hand 61 returns to the original position and prepares for the next assembly operation.
[0058]
In the case of assembling the above-mentioned components, if the air in the air reservoir on the lower surface side of the component cannot be completely removed only by the inclination posture, use a means for injecting a liquid with a dispenser, a means for applying vibration, or the like. It is better to completely remove the air.
[0059]
When the incorporation of each component is completed as described above, the filling float 25 is raised by the operation of the cylinder device 26, and accordingly, the liquid W returns to the concave portion 24 and is discharged from the bottom 21. Thereafter, the operation of the liquid tank elevating means 30 raises the liquid tank 20 and detaches it from the main body component 1.
[0060]
Next, the chucking action of the chucking device 17 of the fixing means 15 is released, and the chucking device 17 is returned to the original position by the cylinder device 16. The assembled product is transferred from the main body set holding unit 10 to a post-process such as caulking to complete the assembly.
[0061]
In this way, without moving the main body part 1 while holding the main body part 1 in a predetermined position, the main body part 1 is assembled by fitting the opening 22 having the bottom 21 with the liquid tank 20 which can be moved up and down, Is supplied onto the bottom portion 21 in the liquid tank 20 to allow the liquid to flow into the internal space 9 and assemble each component. After the components are assembled, the liquid is discharged from the bottom portion 21 to remove the liquid tank 20 from the main body component 1. It is configured to be detached, so that necessary parts such as a partition body can be incorporated and the liquid can be sealed without immersing the whole main body part 1 in the liquid and transporting the main body part 1 in the liquid.
[0062]
In the above-described embodiment, the holding of the main body part 1 by the fixing means 15, the attachment to the main body part 1 by the lowering of the liquid tank 20, the supply and storage of the liquid on the bottom 21 by the lowering of the filling float 25, and the mounting of the parts Incorporation of each component by the device 60, discharge of the liquid from above the bottom 21 by raising the filling float 25, detachment from the main component 1 by raising the liquid tank 20, release of the main component 1 from the main set holding unit 10, and the like. Each action is sequentially set and controlled so as to perform a corresponding operation.
[0063]
【The invention's effect】
As described above, according to the present invention, the incorporation of components and the liquid encapsulation work in the assembly of the liquid-enclosed type vibration damping device are performed by using a relatively small liquid tank having a capacity necessary for air removal of the components, The components can be easily and efficiently performed without moving the components while holding the components in a predetermined position and without immersing the entire main component in the liquid, and the entire apparatus can be made compact.
[0064]
In particular, in the case of the present invention, a liquid level detecting tube is provided in the liquid tank, and the operation of the component assembling device is controlled based on the detection signal, and particularly, the liquid level detecting tube is provided with valve means for suppressing pulsation of the liquid level. Even if the liquid in the liquid tank oscillates so that the liquid level rises and falls due to the supply action or the component assembling action, the pulsation of the liquid level due to the sway inside the liquid level detection tube , The liquid level can be accurately detected, and no malfunction occurs.
[0065]
For this reason, it is possible to prevent inconvenience that the component assembling device or the like is interrupted during the operation or the operation state and the interruption are repeated, and the assembling work can be performed efficiently. In addition, since the component assembling operation can be performed while the liquid level is at or above a certain level, the air cutting operation of the component can be performed without any inconvenience, and there is no risk of air bubbles being mixed.
[Brief description of the drawings]
FIG. 1 is a front view of an entire liquid filling device according to an embodiment of the present invention.
FIG. 2 is a side view of a main part of the above.
FIG. 3 is a plan view of a main part of the above.
FIG. 4 is an enlarged front view of a cross section of a liquid tank schematically showing the liquid tank elevating means.
FIG. 5 is an enlarged sectional view of the same liquid tank.
FIG. 6 is an enlarged plan view of a main body set holding section.
FIG. 7 is a front view showing a state where the main body component is fixed.
FIG. 8 is a cross-sectional view showing a relationship between a main body set holding portion and a liquid layer.
FIG. 9 is a cross-sectional view illustrating a relationship between a main body set holding portion and a liquid layer according to another embodiment.
FIG. 10 is an enlarged cross-sectional view of a part of the partition body during assembly.
FIG. 11 is an enlarged sectional view of a part of the diaphragm being assembled.
FIG. 12 is a cross-sectional view illustrating a liquid-sealed anti-vibration mount to be assembled.
[Explanation of symbols]
1 Body parts
3 Rubber elastic body
4 Diaphragm
5 Partition body
6a, 6b liquid chamber
7 orifice
10 Main unit set holder
11 units
13 Supporting member
14 Parts set jig
15 Fixing means
16 Cylinder device
17 Check device
20 liquid tank
21 bottom
22 opening
24 recess
25 Filling float
26 Cylinder device
30 Liquid tank elevating means
33 Slider
34 Driving means
35 Screw shaft
40 Liquid level detection tube
41 Detection piping
42 transparent tube
43 Level sensor
45 Valve means
50 Sealing member
51 Outer body
52 Seal body
60 Parts assembly device
61 hands
62 Chuck device
W liquid

Claims (3)

A liquid-embedded device that incorporates a liquid-sealed anti-vibration mount and a liquid-sealed device,
A main body set holding portion that supports and fixes the main body part of the vibration isolation mount that has an internal space and opens on one end side, in a substantially upright state with the opening facing upward,
An opening is provided at the bottom, which is arranged to be able to ascend and descend above the main body set holding portion, and is fitted to the outer periphery of the main body part in a sealed state, and is attached to the main body part by the fitting of the opening. A liquid tank capable of storing a liquid on the bottom portion,
A liquid tank elevating means for supporting the liquid tank above the main body set holding portion, lowering the opening so as to fit the opening to the main body component, and raising the main body component so as to be detached from the main body component;
Liquid supply and discharge means for supplying and discharging liquid on the bottom having the opening corresponding to the assembling operation of the liquid tank with respect to the main body component,
Means for appropriately replenishing the liquid in the liquid tank,
In a state where the liquid is stored on the bottom in the liquid tank, a component assembling device that holds and moves a component such as a partition body or a diaphragm with respect to the main body component in the stored liquid and performs an assembling operation is provided. In the part assembly and liquid filling device
The liquid tank is provided with a liquid level detecting pipe for detecting the liquid level when the liquid is supplied onto the bottom, and a valve means for suppressing pulsation of the liquid level is provided on the liquid level detecting pipe. Wherein the operation of the component mounting device is controlled based on a liquid level detection signal from the liquid level detection tube. And a liquid filling device. The liquid level detection pipe has a vertical detection pipe connected to the lower part of the liquid tank so that the liquid can flow therein, and at least a part of the detection pipe is provided with a transparent pipe part, and the transparent pipe part is provided with a transparent pipe part. 2. The liquid-filled anti-vibration mount according to claim 1, further comprising a level sensor for detecting a liquid level of the inflowing liquid, and being provided so as to transmit a detection signal of the level sensor to the device control unit. Parts assembly and liquid filling equipment. 3. The liquid-filled anti-vibration mount according to claim 1, wherein the valve means for suppressing the pulsation is provided in an exhaust portion of the liquid level detection pipe, and the exhaust means includes an exhaust throttle valve for limiting an exhaust amount at the time of liquid supply. Parts assembly and liquid filling equipment.

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