JP2532908Y2 - Simple vibration device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for applying vibration to an automobile.

[0002]

2. Description of the Related Art At the time of assembling a suspension at the time of manufacturing a vehicle, it is necessary to set a height of a portion supporting each wheel to a predetermined height so as to keep a posture of the vehicle constant.

[0003] That is, since rubber bushes are interposed in each part of the suspension, if these parts are not given initial familiarity, it is not possible to determine the optimum amount of tightening of the nut and the like.

Therefore, the conventional work for giving the initial familiarity will be specifically described. When a vehicle flowing on a line flows into a pit, an operator in the pit tightens nuts of a suspension. Then, it is determined whether the position of each wheel is at a set height using a gauge or the like.At this time, a worker in the pit hangs on the vehicle body and shakes the vehicle body to give familiarity to the rubber bushes, and the height is then set. Is determined to be a set height.

[0005]

However, in the above-described conventional method, the work is performed using the physical strength of the worker, so that the workability and the working environment are poor.

Therefore, as shown in FIG. 6, an air cylinder 100 is installed in the pit P,
May be connected to the vehicle body 200 so as to swing the vehicle body 200 by using expansion and contraction of the air cylinder 100. As an apparatus for shaking an automobile by using an air cylinder as described above, Japanese Patent Application Laid-Open No. 59-2206 discloses an apparatus.
An apparatus described in Japanese Patent Publication No. 23 is known.

However, in such a means, it is necessary to dispose the air cylinder in the pit as shown in the figure so that the air cylinder does not obstruct the operator. Cannot be entered, which is not desirable. In addition, there arises a problem that the apparatus becomes large-scale and expensive.

The present invention has been made in view of the above-mentioned problems, and it is possible to input the same vibration as in the actual running, and to provide a structure without disturbing the pit. It is an object of the present invention to provide a simple and inexpensive simple vibration device.

[0009]

In order to achieve the above object, a simple vibration device of the present invention is provided with a guide means on a base, and a vibrator is vertically moved along the guide means. A slide table is mounted on the upper side of the vibrator so as to be movable in a horizontal direction with respect to the vibrator, and a fluid is internally supplied and discharged between the lower side of the vibrator and the base. A belt bag that expands and contracts due to this is interposed, and a fluid supply / discharge mechanism that supplies and discharges a fluid is provided in the belt bag.

[0010]

[Function] The simplified vibration device of the present invention has a predetermined position on the line,
For example, it is installed at a position beside a pit and through which wheels of a vehicle flowing on a line pass. In addition, this installation position
Two wheels, only the front wheels and only the rear wheels, may be mounted, or only one of the four front and rear wheels may be mounted.

Next, when the vehicle is vibrated, the wheels of the vehicle are placed on the slide table, and then the fluid is supplied to and discharged from the obi bag by the fluid supply / discharge mechanism. As a result, the sash expands and contracts, and the vibrator provided thereon moves up and down along the guide means. Therefore, the slide table and wheels on the vibrator move up and down, and the vehicle body vibrates. Thereby, the rubber bush of the suspension can be given initial familiarity. The supply and discharge of the fluid may be repeated at a constant cycle or may be random.

Also, due to the structure of the suspension, the wheels are
When moving up and down, usually, it does not move up and down in a vertical direction with respect to the vehicle body, but moves in an arc.
Therefore, as described above, when the wheels are moved up and down by the vibration device of the present invention, as the wheels move in an arc with respect to the vehicle body, the slide table on which the wheels are mounted is Move in the horizontal direction with respect to the vibrator.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front sectional view showing the simple vibration device of the present embodiment, FIG. 2 is a partial side sectional view showing the simple vibration device, and FIG. 3 is a plan partial sectional view showing the simple vibration device. FIG. 4 is a perspective view showing the simple vibration device.

In FIG. 4, reference numeral 1 denotes a base.
This base is configured by erecting a frame 2 on a base plate 11.

The frame 2 is formed in a box shape having an open upper surface, and a notch 20 is formed so that the front and rear surfaces are formed in a gate shape. In order to specify the direction in the description of the embodiment, FIG.
, The side of the frame 2 where the notch 20 is formed is the front side, and the illustrated side is the left side.

As shown in FIG. 3, angle-shaped guide frames 21 serving as guide means are fixed to the four corners of the inner surface of the frame 2 so as to extend in the vertical direction.

A vibrator 3 is provided inside the frame 2. The vibrator 3 is formed in a box shape having an open upper surface, inside which a reinforcing plate 30 is fixed in the left-right direction, and a support roller is provided at the upper end of the reinforcing plate 30, the front plate 31, and the rear plate (not shown). 32 are provided. The support roller 32 has a height such that its upper end protrudes from the upper end surface 34 of the vibrator 3, and has a support shaft 33.
Is supported in the front-rear direction.

Next, as shown in FIG. 1, a slide table 4 is provided on the vibrator 3 so as to be supported by a support roller 32 and movable in the left-right direction. The slide table 4 is connected to the vibrator 3 by a spring 41, and the spring 41 is urged to a position where the spring 41 becomes the shortest. The slide table 40 is positioned at a position where the slide table 40 is biased by the spring 41 so that the pin 5 of the locking cylinder 5
0 is formed, and wheel stoppers 43, 4 are provided at front and rear ends of the upper surface, as shown in FIG.
The upper surface between the stoppers 43 is a wheel mounting surface 40.

Referring back to FIG. 1, a sac 6 is provided between the lower surface of the vibrator 3 and the base plate 11. This obi bag 6 has no elasticity or elasticity itself,
It is constructed by using a fire hose having excellent air-tightness and water-tightness, which expands and contracts when a fluid such as air is supplied and discharged therein. As shown in FIG. Material is filled. As shown in FIG. 4, the belt bag 6 has a connection cap 61 attached to one end, and is closed by a closing cap 62 at the other end. This base 61,
62 is attached to the obi bag 6 by a half metal fitting 63,
The half metal fitting 6 is supported on the base 1 in a state where the metal fitting 6 is connected to the base 1 by a spring 64, and the bottom surface thereof is formed in an arc projecting surface 65 (FIG. 2).
reference).

As shown in FIG. 1, the zipper 6 is connected to a fluid supply / discharge device 7 for supplying and discharging a fluid to and from the zipper 6. In the fluid supply / discharge device 7, a ventilation pipe 70 connected to the connection base 61 is connected to a supply pipe 72 through a supply / discharge switching valve 71.
And the exhaust pipe 73, and is connected to the supply / discharge switching valve 7.
1 is at the air supply position (the position in FIG. 1), the compressed air from the air compressor 74 is supplied from the air supply pipe 72 to the ventilation pipe 70.
When the supply / discharge switching valve 71 is in the exhaust position, the air in the belt 6 is discharged from the ventilation pipe 70 through the exhaust pipe 73 to the outside air. Has become.

The supply / discharge switching valve 71 is switched by a control circuit 76 in response to the vertical movement of the vibrator 3. In this embodiment, the control circuit 76 controls the vibrator 3 to a predetermined height. When the upper limit switch 71a is turned on and the upper limit switch 71a is turned on, the supply / discharge switching valve 71 is switched to the exhaust position, and the vibrator 3 is lowered to a predetermined height to lower the lower limit switch 7a.
When 1b is turned on, the supply / discharge switching valve 71 is switched to the air supply position.

As shown in FIG. 5, the simple vibration device of this embodiment having the above-described structure is installed in a recess 8 formed by cutting a side of the pit P.
That is, the position is set so that the wheels 9 of the vehicle flowing on the line pass on the slide table 4. When tightening the nuts and the like of the suspension 90 that supports the wheels 9 on the vehicle body, the vibrations are given to the wheels 9 by this simple vibrating device, and the rubber bush and the like interposed in each part of the suspension 90 are given initial familiarity. The optimum tightening amount is determined.

Next, the operation of the embodiment will be described.

First, the wheels 9 of the vehicle flowing on the line are mounted on the wheel mounting surface 40 of the slide table 4. In this case, the pins 50 of the locking cylinder 5 are locked until the wheels 9 are completely mounted. The slide table 4 is locked by being fitted in the hole 42, and when the wheels 9 have been placed, the pin 50 of the lock cylinder 5 is pulled out from the lock hole 42 to release the lock.

When the wheels 9 are mounted on the wheel mounting surface 40 of the slide table 4 in this manner, the fluid supply / discharge device 7
The compressed air is supplied from the air compressor 74 to the obi bag 6, whereby the obi bag 6 is expanded and the vibrator 3 is raised. When the vibrator 3 rises to a predetermined height, the upper limit switch 71a is turned on, the supply / discharge switching valve 71 is switched to the exhaust position, and the air in the sac 6 passes from the ventilation pipe 70 through the exhaust pipe 73. It is released to the outside air, the sac 6 contracts, and the vibrator 3 descends. When the vibrator 3 descends to a predetermined height, the lower limit switch 71b is turned on, the supply / discharge switching valve 71 is switched to the air supply position, and compressed air is supplied from the air compressor 74 to the obi bag 6, and again. The obi bag 7 expands and the vibrator 3 rises. Thereafter, by repeating this, the vibrator 3 moves up and down, the wheels 9 move up and down, and the vehicle body vibrates. This can give the rubber bush an initial familiarity. However, since the vehicle body is vibrated by moving the wheels 9 up and down in this way, the vehicle body vibration according to the actual running state can be obtained, and the initial familiarity can be obtained. High reliability.

The length of the zipper 6 expands and contracts as the zipper 6 expands and contracts.
The second half 63 is fixed to the base 1 by the spring 64 and the bottom surface of the half half 63 is formed on the arc projecting surface 65, so that the half half 63 can swing. Accordingly, the half metal fitting 63 swings in accordance with the extension and contraction of the length of the zipper 6, and the tension on the zipper 6 due to the extension and contraction of the length of the zipper 6 can be absorbed.

Since the elastic material such as sponge rubber 60 is filled in the obi sack 6, the obi sack 6 is not completely crushed or one place is not bent at the time of evacuation. Can be prevented and the durability can be improved.

Also, the vertical movement of the wheel 9 with respect to the vehicle body is usually not linear, but moves in an arc.
When vibration is applied to the vehicle body, the relative positions of the vehicle body and the wheels 9 change in the vehicle width direction. In such a case, since the slide table 4 on which the wheels 9 are mounted moves in the horizontal direction with respect to the vibrator 3, it is possible to follow a change in the relative position between the vehicle body and the wheels 9. No unreasonable load is applied in between.

As described above, when the wheel 9 is vibrated to give an initial familiarity to the rubber bush and the position determination of the wheel 9 accompanying the tightening of the nuts of the suspension 90 is completed, the wheel 9 is slid. It is lowered from the table 4 and flows down the line. At this time, when the wheels 9 are lowered from the slide table 4, the slide table 4 is returned to a predetermined position by the spring 41, and the pins 50 of the locking cylinder 5 are fitted into the lock holes 42 to lock the slide table 4. I do.

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration is not limited to this embodiment. For example, in the embodiment, air is used as the fluid of the fluid supply / discharge device. However, a liquid such as hydraulic pressure may be used.

[0031]

As described above, in the simple vibration device according to the present invention, the vibrator is provided on the base so as to be movable in the vertical direction, and is slidably movable in the horizontal direction above the vibrator. The table is mounted, a belt is interposed between the lower side of the vibrator and the base, and a fluid supply / discharge mechanism for supplying / discharging fluid to / from this belt is provided. If the fluid is supplied to and discharged from the obi bag, the wheels can be moved up and down, thereby simultaneously obtaining the effects listed below.

A) Unlike the prior art, the vibration is not applied manually by the operator, so that the workability is improved and the work environment can be improved.

B) Since the device does not need to be installed in the pit, it can be prevented from disturbing the operator.

C) Since the wheels are swung directly from directly below, initial familiarity that matches the original motion as in actual running can be given, and the reliability is high.

D) Since the driving force of vibration is obtained by the expansion and contraction of the zipper, the structure is simple, the cost can be reduced, and noise is hardly generated.

E) Since the slide table can be moved in the horizontal direction with respect to the vibrator, the horizontal displacement of the slide table with respect to the vehicle body due to the vertical movement of the wheel can be performed. And an excessive force can be prevented from being applied between the wheel and the vibration device.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a simple vibration device of an embodiment.

FIG. 2 is a partial cross-sectional side view showing the apparatus of the embodiment.

FIG. 3 is a partial cross-sectional plan view showing the apparatus of the embodiment.

FIG. 4 is a perspective view showing the apparatus of the embodiment.

FIG. 5 is a cross-sectional view illustrating an installation position of the apparatus according to the embodiment.

FIG. 6 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 base 21 guide frame (guide means) 3 vibrator 4 slide table 40 wheel mounting surface 6 obi bag 7 fluid supply / discharge device 9 wheel

Claims (1)

(57) [Scope of request for utility model registration] 1. A base is provided with guide means, and a vibrator is supported along the guide means so as to be movable in a vertical direction. Above the vibrator, a vibrator is provided in a horizontal direction with respect to the vibrator. A slide table is movably mounted on the base, and between the lower side of the vibrator and the base, there is interposed a belt that expands and contracts by supplying and discharging fluid to the inside. A simple vibration device comprising a fluid supply / discharge mechanism for discharging.