JPH08174683A - Manufacture of vibration-proofing rubber - Google Patents

Abstract

PURPOSE: To continue adhering process as it is without special stage replacement even if a type is replaced in order to adhere an annular rubber elastic element to the inner periphery of an inner cylinder fitment and the outer periphery of an outer cylinder fitment in the case of manufacturing the vibration-proofing rubber of the state in which the element is vulcanized and adhered between the inner and outer fitments. CONSTITUTION: In the adhering step, a common main rotary holder 60 for different types is provided, outer cylinder fitment 28 special purpose auxiliary holder 96 of specific type is prepared, the fitment 28 is set at each holder 96, adhered in this state, and then the fitment 28 can be removed from the holder 60 together with the holder 96.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a vibration-proof rubber in which an annular rubber elastic body is vulcanized and bonded between an inner cylindrical metal member and an outer cylindrical metal member. With respect to.

[0002]

2. Description of the Related Art As one type of anti-vibration rubber, there is a form in which an annular rubber elastic body is vulcanized and bonded between an inner tubular metal member and an outer tubular metal member. FIG. 8 shows an example of a production line of this type of vibration-proof rubber, and in this example, an adhering step 302, a plurality of vulcanizers 304, a squeezing step 306 and an endless annular conveying path 300 are provided. A coating step 308 is provided, and after an adhesive is spray-applied to the inner peripheral surface of the outer tubular metal fitting and the outer peripheral surface of the inner tubular metal fitting in the bonding step 302, they are set on the metal fittings of the vulcanizer 304, and the rubber is set there. The material is injected and vulcanized and bonded, and then the vulcanized product is conveyed along the conveying path 300 to the drawing step 306 where the drawing processing is performed, and further coating is applied in the downstream step.

FIG. 8B specifically shows the carrying method and the adhering method at that time. In FIG. 2B and FIG. 2A, reference numeral 310 is a transfer pallet, and in this transfer pallet 310, a cylindrical holder 314 for exclusive use is integrally formed with an outer cylindrical metal member 312 with a collar of a vibration-proof rubber of a specific type. The holder 314 is fixed, and the outer cylinder metal fitting 3 is fixed by the holder 314.
It is designed to hold 12.

The carrier pallet 310 is also provided with a holder 31 for the inner tubular metal member 316 of the same type of vibration-proof rubber.
8 is fixed, and the holder 318 holds the inner cylindrical metal fitting 316. As shown in (c), the vulcanized product is conveyed to the drawing step 306 in such a state that only the inner cylindrical metal fitting 316 is supported by the holder 318.

(B) shows a method of adhesion treatment.
In the figure, reference numeral 322 denotes a holder dedicated to the bonding process for holding the outer tubular metal piece 312, and the outer tubular metal piece 312 is the holder 32.
An adhesive is spray-applied to the inner surface of the collar while the lower surface of the collar is supported by the adhesive. On the other hand, the inner tubular metal fitting 316 is held by a holder 324 dedicated to the inner tubular metal fitting, and the holder 32
While being rotated together with 4, the adhesive is spray-applied to the outer peripheral surface thereof.

[0006]

By the way, in the case of the above method, it is necessary to set a dedicated holder for each different type of product, especially when performing the bonding process, and therefore it is necessary to replace the holder when changing the type of product. is there. However, especially when a large number of different types of anti-vibration rubber are produced little by little, the dedicated holder must be replaced frequently, which requires a great deal of time and effort for the setup change.

[0007] For example, in the case of producing a large amount of a variety of anti-vibration rubbers, it is often necessary to carry out the setup change about 20 times a day, and therefore 1/3 of the day is required.
It took a lot of time, and this was a major factor that hindered productivity. There was also a problem that manpower was required for changing the setup.

[0008]

The invention of the present application has been made to solve such a problem. Thus, according to the invention of the present application, the inner tubular metal member and the outer tubular metal member are transported by a transporting means along a predetermined transport path, and the outer peripheral surface of the inner tubular metal member and the inner peripheral surface of the outer tubular metal member are bonded in a bonding process. Apply adhesive to the surface and then set the outer and inner cylinder fittings in the mold of the vulcanizer and inject the rubber material between the inner and outer cylinder fittings. In a method for producing a vibration-proof rubber in which a ring-shaped rubber elastic body is vulcanized and bonded between a tubular metal fitting and an outer tubular metal fitting, an adhesive for the inner peripheral surface of the outer tubular metal fitting in the bonding treatment step is used. At the time of coating, a main rotating holder for outer cylinder fittings common to the outer cylinder fittings of different types of anti-vibration rubber is provided, and a ring-shaped member that is detachable from the main rotating holder for outer cylinder fittings is used. None, a size corresponding to the outer peripheral surface of each outer metal fitting of different types of anti-vibration rubber A fitting surface for fitting a metal fitting position on the inner diameter side that is removably fitted to the outer peripheral surface, a support portion of the outer tubular fitting, and a supported object supported by an upper end portion of the main rotating holder for the outer tubular fitting. And an auxiliary holder for an outer tubular metal fitting dedicated to a specific product, which is equipped with a holder and a holder positioning mating surface that is removably fitted to the main rotary holder for the outer tubular metal fitting to determine its own position perpendicular to the axis. In a state in which the outer tubular metal fitting is supported by the supporting portion, the outer tubular metal fitting is placed together with the outer tubular metal fitting on the upper end portion of the outer tubular metal fitting main rotation holder in the supported portion, and the outer tubular metal fitting main body is mounted. The rotating holder and the auxiliary holder for the outer cylinder metal fitting are spray-applied to the inner peripheral surface of the outer cylinder metal fitting in a state of being driven to rotate by the rotation driving device together with the outer cylinder metal fitting, and then the outer cylinder after the adhesion treatment. From the main rotation holder for the outer tubular metal fitting, the metal fitting together with the auxiliary holder for the outer tubular metal fitting Characterized in that the carry Disconnect Te the outer tubular member to the next step (claim 1).

According to another invention of the present application, in claim 1, the outer tubular metal fitting is provided with a collar having a flange on an outer peripheral surface of a predetermined axial position, and the axial end of the auxiliary holder for the outer tubular metal fitting. The outer cylindrical metal fitting is provided with a supporting portion in a form of supporting a lower surface of the collar, and the outer tubular metal fitting has a collar having a collar on an outer peripheral surface at a predetermined axial position, It is characterized in that the supporting portion in a form of supporting a lower surface of the collar is provided at an axial end portion of the holder (claim 2).

According to a still further invention of the present application, in claim 1, the outer cylindrical metal fitting is a flange-less pipe-shaped member having no flange, and the outer peripheral metal fitting auxiliary holder has an inner peripheral surface thereof. It is characterized in that the support portion is provided on the side so as to project inward and supports the lower end surface of the outer tubular metal fitting (claim 3).

According to still another aspect of the present invention, in Claims 1, 2 or 3, a held portion held by a robot hand is the same for each auxiliary holder on the outer peripheral surface side of the auxiliary holder for the outer cylinder fitting. And the shape and size of the outer cylinder fitting main rotary holder for the outer cylinder fitting and the same relative position with respect to the outer rotary fitting main rotation holder for the outer cylinder fitting. (Claim 4).

[0012] Still another invention of the present application is as follows.
Or 4, in the process of applying an adhesive to the outer peripheral surface of the inner tubular metal fitting in the adhesion treatment step, a main rotary holder for the inner tubular metal fitting common to each inner tubular metal fitting of different types of vibration-proof rubber is provided, The inner peripheral surface is a member that is detachable from the main rotary holder for the inner cylindrical metal member, has a ring shape, and has a size corresponding to the inner peripheral surface of each inner cylindrical metal member of the anti-vibration rubber of a different type. An outer diameter side fitting fitting surface on the outer diameter side that is removably fitted to the inner tubular fitting, a support portion for the inner tubular fitting, and a supported portion supported by an upper end portion of the main rotary holder for the inner tubular fitting. An inner cylinder metal fitting for a specific product, which has an inner diameter side holder positioning fitting surface that is removably fitted to the outer peripheral surface of a projecting pin provided on the upper end surface of the main rotation holder for the inner cylinder metal fitting. With the auxiliary holder for use in a state where the inner tubular metal fitting is supported by the support portion, A state in which the inner tubular metal fitting together with the inner tubular metal fitting is placed on the upper end portion of the main rotary holder for the inner tubular metal fitting in the support portion, and the main rotary holder for the inner tubular metal fitting and the auxiliary holder are rotationally driven together with the inner tubular metal fitting by a rotary drive device. Then, spray the adhesive on the outer peripheral surface of the inner tubular metal fitting, and then remove the inner tubular metal fitting after the adhesion process together with the auxiliary holder for the inner tubular metal fitting from the main rotary holder for the inner tubular metal fitting to remove the inner tubular metal fitting. It is characterized in that it is conveyed to the next step (Claim 5).

Still another invention of the present application is to provide claims 1, 2,
In 3, 4, or 5, the transfer means is (a) a transfer pallet and (b) is projected on the transfer pallet, and the auxiliary holder for the outer cylinder metal fitting is attached to the outer cylinder at the fitting surface for fitting the metal fitting. A main holder for transportation that supports the upper end portion in a state where the metal fittings are fitted inside, and (c) is directly or indirectly and removably fitted inside the inner metal fittings so that the position perpendicular to the axis can be set. An inner cylindrical metal fitting or a support portion for supporting the inner cylindrical metal fitting and the outer cylindrical metal fitting, the upper end of the inner cylindrical metal fitting and the upper end of the outer cylindrical metal fitting being provided. Are supported at the same height position between different types (claim 6).

[0014]

As described above, according to the first aspect of the present invention, the main rotating holder for the outer cylinder fitting which is common to the different types of vibration-proof rubber is provided in the bonding process, while the outer cylinder dedicated to each kind is provided. Prepare an auxiliary holder for the metal fittings, and hold the outer metal fittings with the auxiliary holder for the outer metal fittings, that is, the outer metal fitting and the dedicated auxiliary holder for the outer metal fittings It is placed on the main rotation holder and indirectly holds the outer cylinder metal fitting by the main rotation holder for the outer cylinder metal fitting, and in this state it is rotationally driven to spray-apply the adhesive on its inner peripheral surface. According to the present invention, it is possible to attach / detach to / from the main rotary holder for outer cylinder fittings common in the bonding process in a state where the dedicated auxiliary holder for outer cylinder fittings is previously attached to the outer cylinder fittings of the anti-vibration rubber of each type. Even if the type of anti-vibration rubber should change It like to interrupt the bonding treatment operations replace the holder for the adhesive treatment is not necessary and can be directly continued adhesion process.

That is, it is possible to substantially omit the work required for the setup change in the past, which can greatly improve the productivity and eliminate the need for the operator for the setup change. It is also possible to automate the bonding process. Further, since the setup change can be substantially eliminated, it is possible to obtain an advantage that a large number of products can be flowed to the bonding process line in a mixed flow state. As for the inner tubular metal fittings, some play (gap) is often allowed in the holding part of the inner tubular metal fitting main rotation holder. It is possible to hold a rubber inner cylinder fitting.

According to a second aspect of the present invention, in the case where the outer tubular metal fitting is provided with a collar, a supporting portion for supporting the lower surface of the collar is provided at a predetermined axial position of the outer tubular metal fitting auxiliary holder. According to the present invention, the flange of the outer tubular metal fitting can be utilized to stably support the outer tubular metal fitting.

According to a third aspect of the present invention, in the case where the outer cylindrical metal fitting is a flangeless pipe-shaped member, the outer cylindrical metal fitting auxiliary holder has a support portion for supporting the lower end surface of the outer cylindrical metal fitting on the inner peripheral surface side. According to the present invention, it is possible to reliably support the outer tubular metal fitting regardless of the shape of the outer tubular metal fitting.

According to a fourth aspect of the invention, on the outer peripheral surface side of the outer cylinder metal fitting auxiliary holder, the outer cylinder metal fitting auxiliary holders have the same shape and size and are set in the outer cylinder metal main rotary holder. In the present invention, the held portion is provided at the same relative position with respect to the main rotating holder for the outer tubular metal fitting, and the held portion is held by the robot hand. Regardless of the above, the same operation of the robot hand can be used to attach and detach the outer cylinder fitting to the main rotation holder for the outer cylinder fitting in the bonding process. It is possible to automate the setting of the outer tubular metal fitting to the bonding position and the taking-out of the outer tubular metal fitting from the bonding position without particularly performing a setup change.

In the invention of claim 4, the held portion may be an annular concave portion formed between a pair of annular protruding portions that are vertically spaced apart by a predetermined distance. Further, in this case, the lower annular protruding portion can also serve as the supported portion supported by the upper end portion of the main rotating holder for the outer tubular metal member.

According to a fifth aspect of the present invention, the inner tubular metal fitting is detachably attached to the main rotary holder for the inner tubular metal fitting together with the dedicated auxiliary holder for the inner tubular metal fitting. Even in the case where the main rotary holder for use alone cannot handle different types of inner tubular metal fittings, it is possible to perform the bonding process continuously without performing a special setup change operation.

According to a sixth aspect of the present invention, the outer tubular metal fitting is supported together with the inner tubular metal fitting together with the dedicated auxiliary holder for the outer tubular metal fitting on the pallet, and the outer tubular metal fittings and the inner tubular metal fittings of different types are supported. According to the present invention, the upper ends of the outer tubular metal fitting and the inner tubular metal fitting are gripped by the robot hand so that the upper end and the upper end are at the same height. Then, when setting it in the mold of the vulcanizer,
The same operation in the robot hand has the advantage that the metal fittings can be set in the mold.

Since the outer tubular metal fitting is placed on the pallet together with the dedicated outer tubular metal fitting auxiliary holder, the outer tubular metal fitting taken out from the bonding position after the bonding process is placed on the pallet together with the outer tubular metal fitting auxiliary holder. Therefore, it is possible to automate the transfer from the bonding process to the transfer process and vice versa.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a linear conveying path, on one side of which a plurality of vulcanizers 12 are arranged, and on the other side, a drawing step 14, a painting step 16, a metal stock step 18, A bonding step 20 is provided. Reference numeral 22 is a pallet, and the pallet 22 conveys the inner tubular fitting and the outer tubular fitting.

FIG. 2 shows an example of the form of the vibration-proof rubber.
The anti-vibration rubber 24 shown in (A) of the figure has a collar 2 at one end in the axial direction.
An annular rubber elastic body 32 is vulcanized and bonded between a cylindrical outer cylindrical metal fitting 28 having a cylindrical shape 6 and an inner cylindrical metal fitting 30 having the same cylindrical shape. A hollow portion 34 is formed in the rubber elastic body 32.

The anti-vibration rubber 36 of (B) has a form in which an annular rubber elastic body 42 is vulcanized and bonded between an outer cylindrical metal fitting 38 and an inner cylindrical metal fitting 40 having a flangeless cylindrical shape. The anti-vibration rubber 44 of C) is a cylindrical outer cylindrical metal fitting 48 having a large-diameter flange 46 at the lower end portion, and a cylindrical shape in which a substantially lower half portion is a large diameter portion 50 and an upper half portion is a small diameter portion 52. An annular rubber elastic body 56 is vulcanized and adhered to the inner cylindrical metal fitting 54.

FIG. 3 shows a method of applying an adhesive treatment to the outer tubular metal fitting 28 and the inner tubular metal fitting 30 of the anti-vibration rubber 24, for example. In the figure, 58 is a support plate,
The support plate 58 supports a main rotation holder 60 for the outer cylinder fitting and a main rotation holder 62 for the inner cylinder fitting.

The main rotary holder 60 for the outer tubular metal fitting is provided with a bottomed cylindrical main body portion 64, a shaft portion 66 provided at the center of the lower surface of the main body portion 64, and a lower end portion of the shaft portion 66. The pedestal portion 68 and a downwardly projecting portion 70 provided on the lower surface side center portion of the pedestal portion 68 are provided.
Are fitted into the holes 72 of the support plate 58, and the pedestal portion 68 is seated on the upper surface of the support plate 58. Incidentally, 75 is a disposable cup housed in the main body portion 64 of the main rotation holder 60.

On the other hand, the main rotation holder 62 for the inner cylinder fitting
Has a cylindrical main body portion 76 and a projecting pin 78 having a smaller diameter than the main body portion 76 and projecting upward from the upper surface of the main body portion 76, and in the pedestal portion 68 provided at the lower end portion of the main body portion 76. It is adapted to be seated on the upper surface of the support plate 58, and to be fitted into the hole 72 of the support plate 58 at the projecting portion 70 provided at the center of the lower surface of the pedestal portion 68.

Reference numeral 80 denotes a rotary drive device for rotationally driving the main rotary holders 60 and 62. An elevator body 82 is vertically moved by a cylinder (not shown), a guide rail 84 for vertically guiding the elevator body 82, and an elevator body. The sliding portion 86 provided on the sliding member 82 and slidably fitted to the guide rail 84.
A motor 88 fixed to the lifting body 82, and a lifting body 82.
The rotary drive shaft 9 rotatably held by the bearing 90.
And 2. The rotary drive shaft 92 is operatively connected to the motor 88 via a pulley 94 and an endless annular conductive member 95 wound around the pulley 94.

At the upper end of the rotary drive shaft 92, the support disk 9
7 and a pin 99 protruding upward from the central portion thereof are provided, and the pin 99 is the main rotation holder 60,
62 is fitted in the central hole 74, and the supporting disc 97
Touches the lower surface of the protruding portion 70 to support and rotate it.

Reference numeral 96 denotes an auxiliary holder dedicated to the outer tubular metal fitting of a specific type of anti-vibration rubber, which is detachable from the main rotary holder 60 and has a ring shape. The auxiliary holder 96 for the outer tubular metal fitting has an upper half portion having a small diameter portion 98 and a lower half portion having a large diameter portion 100. The small-diameter portion 98 serves as a support portion that supports the lower surface of the collar 26 of the outer tubular metal fitting 28 with a collar, and the inner peripheral surface of the outer tubular metal fitting 28 is fitted into the outer peripheral metal surface 28 of the outer tubular metal fitting 28 with almost no gap and in a removable manner. In addition, the fitting surface 102 for fitting is defined to define the position perpendicular to the axis.

On the other hand, the outer peripheral surface of the lower end portion of the large-diameter portion 100 is removably fitted into the inner peripheral surface of the upper end portion of the main rotary holder 60 so as to define a holder position fitting for defining the position of the auxiliary holder 96 in the direction perpendicular to the axis. It is a surface 103. In the large diameter part 100,
Further, on the outer peripheral surface thereof, annular projecting portions 104 are formed at positions vertically spaced apart from each other by a predetermined distance, and an annular and recessed held portion 106 is formed between the projecting portions 104. The held portion 106 is a portion held by the robot hand.

The lower protrusion 104 of the annular protrusions 104 also serves as a supported portion supported by the main rotary holder 60, and therefore the annular and concave retained portion 106 is the main rotary holder. It is located directly above the upper end of 60.

In this embodiment, the main rotary holder 60 is supported by the rotary drive device 80 while being rotationally driven, and in this state, the adhesive is sprayed from the tip nozzle 108 of the spray gun onto the inner peripheral surface of the outer tubular fitting 28. Apply and bond. In addition, at or before the bonding process to the outer tubular metal fitting 28, while the main drive holder 62 for the inner tubular metal fitting is supported and rotated by the rotation drive device 80, the inner tubular metal fitting 3 from the tip nozzle 108 of the spray gun is rotated.
An adhesive agent is spray-applied to the outer peripheral surface of No. 0 to perform an adhesive treatment.

In this example, a specific type of anti-vibration rubber 24
The outer cylinder fitting to be bonded is supported by the main rotation holder 60 through the auxiliary holder 96 dedicated to the outer cylinder fitting, and in this state, the outer holder is rotationally driven to perform spray application of the adhesive. By replacing 96 with another one, the same main rotation holder 60 can be used in common, and the bonding process can be similarly performed on the outer cylindrical metal fittings of different types of vibration-proof rubber.

In this example, no special auxiliary holder is used for the inner tubular metal fitting 30, and the auxiliary holder is directly set on the main rotary holder 62 for the inner tubular metal fitting to perform the bonding process. In this case, a slight change in the inner diameter of the inner tubular member 30 may be caused by the protrusion pin 78 in the main rotation holder 62.
It can be absorbed by the gap between the inner peripheral surface of the inner tubular member 30 and the inner peripheral surface of the inner tubular member 30.

Incidentally, FIG. 4 shows an example in which the outer cylindrical metal fitting 38 and the inner cylindrical metal fitting 40 of the collar-free cylindrical vibration-proof rubber 36 having a different form from the above example are bonded. In the figure, reference numeral 110 denotes an auxiliary holder dedicated to the outer tubular metal fitting 38 of a flangeless pipe shape and having a specific size, which is fitted to the outer peripheral surface of the outer tubular metal fitting 38 on the inner peripheral side of the upper half portion with almost no gap and which can be inserted and removed. A fitting surface 112 for metal fitting position determination that defines the position perpendicular to the axis is formed. A support portion 114 that projects inward and supports the lower end surface of the outer tubular metal fitting 38 in the axial direction is provided on the lower side thereof.

On the other hand, on the outer peripheral side, a protruding portion 104 having the same size and shape as the auxiliary holder 96 shown in FIG. 3 and an annular and concave held portion 106 are formed, and further below it. A holder position fitting surface 103 is formed that is fitted into the inner peripheral surface of the upper end portion of the main rotation holder 60 and defines the position of the auxiliary holder 110 in the direction perpendicular to the axis.

In FIG. 4, reference numeral 116 denotes an auxiliary holder dedicated to the inner tubular metal member, which is ring-shaped. The auxiliary holder 116 dedicated to the inner tubular metal fitting has a small diameter portion 118 on the upper side.
However, the large diameter portion 120 is formed on the lower side. The outer peripheral surface of the upper small-diameter portion 118 serves as a metal fitting position fitting surface 122 that fits into the inner peripheral surface of the inner tubular metal fitting 40 with almost no clearance and is insertable and removable to define the position perpendicular to the axis. On the other hand, the large diameter portion 120 on the lower side serves as a support portion that supports the lower end surface of the inner tubular fitting 40. Large diameter part 1 forming this support part
The numeral 20 also serves as a supported portion supported by the upper end surface of the main rotary holder 62 for the inner tubular metal fitting.

On the inner peripheral side of the auxiliary holder 116, there is provided a protruding portion 124 that protrudes inwardly in a ring shape, and the inner peripheral surface of the protruding portion 124 has almost no gap with respect to the projecting pin 78. In addition, the holder positioning mating surface 12 that is removably fitted to define the position of the auxiliary holder 116 in the direction perpendicular to the axis.
It is supposed to be 6.

Auxiliary holder 11 for outer cylinder fitting shown in FIG.
0 and the auxiliary holder 116 for the inner tubular metal fittings are the same main rotary holders 60 and 6 which are common to the anti-vibration rubbers of different types.
2 can be set as it is. Therefore, by using the auxiliary holders 110 and 116, the outer tubular metal fittings of the vibration-proof rubber 36 of different types from the outer tubular metal fittings 28 and the inner tubular metal fittings 30 shown in FIG. 38 and inner tube fitting 40
Can be bonded using the same main rotation holders 60 and 62 and by the same method.

In this example, the dedicated auxiliary holder 116 is used also for the inner tubular metal fitting 40. By doing so, even the inner tubular metal fitting having a large inner diameter is accurately positioned and bonded. be able to.

FIG. 5 shows a state in which the metal fittings are being transported by pallets on the transport path. In the figure, reference numeral 128 denotes a plate-shaped pallet, and a plurality of cylindrical main holders 130 for conveyance having the same shape are provided on the pallet 128 so as to project upward.
0, auxiliary holders 96, 132, 11 for outer cylinder fittings
0 is placed.

Here, each auxiliary holder 96, 132, 11
0 is removably internally fitted to each transport main holder 130 at the holder positioning fitting surface 103, and is supported by the transport main holder 130 at the lower annular protrusion 104. .

Further, each auxiliary holder 96, 132, 110
Is fitted to the outer tubular metal fittings 28, 38 without any gaps on the fitting positions 102, 112 for fitting the metal fittings on the inner peripheral side, and defines their positions in the direction perpendicular to the axis. However, in this carrying state, the auxiliary holders 96, 132, 110 do not directly support the corresponding outer tubular fittings 28, 38.

Incidentally, the auxiliary holder 13 on the right side in FIG.
2 is for the outer cylindrical metal fitting 28 of the cylindrical shape with a collar like the auxiliary holder 96 on the left side.
2 is configured for the outer tubular metal fitting 28 with a flange (the right one in the drawing) having a larger outer diameter than the outer tubular metal fitting 28 with a collar on the left side in the drawing, and has a small diameter portion 133 and a large diameter like the auxiliary holder 96. Although the inner diameter of the small diameter portion 133 and the large diameter portion 134 is the same, the inner peripheral surface of the small diameter portion 133 and the large diameter portion 134 is the fitting surface 102 for fitting. Other points are basically the same as the auxiliary holder 96.

The auxiliary holder 110 for the flange-less pipe-shaped outer cylinder fitting 38 shown in FIG. 5B is, in this example, a state in which the lower end surface of the outer cylinder fitting 38 is supported by the supporting portion 114. It is placed on the main transport holder 130.

On the pallet 128, support base portions (support portions) 136, 138, 140 of various shapes are provided so as to project upward. The support base 136 includes a support surface 1 for the outer cylinder fitting.
42 and a support surface 144 for the inner tubular metal fitting are formed in a stepped shape, and a support surface 146 common to the outer tubular metal fitting 28 and the inner tubular metal fitting 30 is further formed on the support base 138.
At 0, a support surface 148 dedicated to the inner cylinder fitting is formed.

Each of the support bases 136, 138, 140 has a
In addition, upward protruding pins 150, 15
2, 154 are provided. These protruding pins 150,
Reference numerals 152 and 154 are for defining the positions of the inner tubular fittings 30 and 40 in the direction perpendicular to the axis. Here the protruding pin 150,
Numeral 152 fits to the inner peripheral surface of the inner tubular metal fitting 30 so as to be directly insertable and removable to position them, and the protruding pin 154 fits to the inner tubular metal fitting 40 via the auxiliary holder 116 for the inner tubular metal fitting. The position perpendicular to the axis is specified. That is, FIG.
The support base portion 140 of (B) supports the inner tubular metal member 40 via the auxiliary holder 116.

As clearly shown in FIG. 5, in the respective support bases 136, 138 and 140, the upper ends of the outer tubular metal fittings 28, 38 and the upper ends of the inner tubular metal fittings 30, 40 are located at the same position between different types. It is supposed to support these to be located in.

As is apparent from the above description, in this embodiment, the outer cylinder fittings 28, 38 of different types conveyed by the pallet 128 are used as the dedicated auxiliary holders 96, 132, 1
Each 10 can be transferred to the main rotation holders 60, 62 in the bonding process. Also, the inner tubular fittings 30 and 40 can be set as they are, or if the auxiliary holder is used, the auxiliary holder can be placed and set on the main rotation holder 62 in the bonding step (see FIG. 6).

In addition, the outer cylinder fittings 28 and 38 of different types which have been subjected to the bonding process in the bonding step are replaced with auxiliary holders 96 and 13.
Every 2,110 can be returned to the main carrier holder 130 on the pallet 128 again. Similarly, the inner tube fitting 30,
40 as it is, or the support holders 136, 138, 140 on the pallet 128 together with the auxiliary holder 110.
Can be put back on.

Therefore, according to the present example, even when different types of anti-vibration rubber are conveyed irregularly, the outer cylinder fittings and the inner cylinders are conveyed from the conveying path 10 based on the same operation in the robot hand. The metal fittings can be transferred to the bonding process, and the outer metal fittings and the inner metal fittings that have been bonded can be returned to the pallet 22 on the transport path 10 again.
These operations can be automated without requiring special setup change.

In the present embodiment, since the outer cylinder fittings 28, 38 and the inner cylinder fittings 30, 40 have the same height at the upper ends, the respective upper ends of the respective fittings after the bonding process are removed by the loader. When holding and setting in the mold of each vulcanizer 12, it is possible to easily hold the metal fittings even if the type is different, and there is also an advantage that the work of setting the metal fittings in the mold can be automated.

The above is an example of the vibration-proof rubber bush of the inner-outer tube adhesion type, but the present invention is also applicable to the vibration-proof rubber (strut mount) 44 of the form shown in FIG. 2 (C). FIG. 7 shows a method of bonding the anti-vibration rubber 44 of this embodiment. In the figure, reference numeral 156 denotes an auxiliary holder for an anti-vibration rubber (strut mount) of this form and for an outer tubular metal fitting of a specific shape and size (specific product type), which includes a short cylinder portion 158 and an upper end portion of the cylinder portion 158. Has a donut plate-shaped plate-shaped portion 160 that extends inward.

The plate-shaped portion 160 serves as a support portion and supports the collar 46 of the outer tubular metal member 48 in a state in which the collar 46 is in the upside-down direction from the product state. Further, the inner peripheral surface of the plate-shaped portion 160 is a metal fitting position fitting surface 162 which fits the outer peripheral surface of the outer tubular metal fitting 48 with substantially no gap and defines the position in the axis-perpendicular direction.

On the other hand, a stepped supported portion 164 is formed on the cylindrical portion 158, and the supported portion 164 is supported by the upper end portion of the main rotary holder 60. On the lower side of the supported portion 164, a holder positioning fitting surface 166 is formed which is fitted onto the upper end portion of the main rotation holder 60 and defines the position in the axis-perpendicular direction.

Reference numeral 168 denotes an auxiliary holder dedicated to the inner tubular metal fitting of the strut mount. The auxiliary holder 168 of this example has a cylindrical small diameter portion 170 and an upper large diameter portion 172. The large-diameter portion 172 serves as a support portion that supports the inner tubular metal fitting 52, and the outer peripheral surface thereof is fitted to the inner peripheral surface of the inner tubular metal fitting 52 with substantially no gap to define the position perpendicular to the axis thereof. It is a fitting surface 174 for positioning.

On the other hand, the lower cylindrical small-diameter portion 170 serves as a supported portion supported by the main rotary holder 62, and the inner peripheral surface of the small-diameter portion 170 is fitted into the projecting pin 78 with almost no space between the auxiliary holder. The holder locating fitting surface 176 defines the position of 168 perpendicular to the axis. In addition, 1
Reference numeral 78 denotes a portion to be held by the robot hand for holding the holder 168 together with the inner tubular metal piece 52.

In this example, the outer tubular metal fitting 48 is supported by the main rotary holder 60 via the auxiliary holder 156 and is rotated, and the inner peripheral surface of the outer metal fitting 48 is spray-coated with the adhesive to perform the bonding process. be able to. Similarly, the inner cylindrical metal member 52 can be bonded by rotating the inner metal member 52 while being supported by the main rotation holder 62 via the auxiliary holder 168 and spray-coating the outer peripheral surface thereof with an adhesive.

The metal fittings can be set at the bonding position for each auxiliary holder 156, 168. After the bonding processing, the metal fittings 48, 52 are set together with the dedicated auxiliary holders 156, 168 from the bonding position. You can take it out. Therefore, also in this case, the main rotary holders 60 and 62 do not need to be replaced at all, and the bonding process can be continued as it is even when different kinds of products are brought.

Although the embodiment of the present invention has been described in detail above, this is merely an example. For example, the present invention is generally applicable to torsion dampers and other inner and outer cylindrical metal fittings, and vibration isolating rubber in the form of a rubber elastic body vulcanized and bonded between them. Installed a production line for the inner / outer tube adhesive type anti-vibration rubber bushing or for the collar-less inner / outer tube adhesive type anti-vibration rubber bushing or for the strut mount to install the main rotation holder for the outer tube metal fittings or the inner tube metal fittings. The main rotation holder can be made common only to the anti-vibration rubbers of the same system. For example, the present invention can be configured in variously modified forms without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a specific manufacturing line of a method for manufacturing a vibration-proof rubber according to an embodiment of the present invention.

FIG. 2 is a diagram showing a form example of a vibration-proof rubber to which the present invention is applied.

FIG. 3 is a diagram showing a bonding method in a bonding step in the example.

FIG. 4 is a view showing a method of adhering an outer cylindrical metal fitting of a vibration-proof rubber of another form to that of FIG. 3 in the same embodiment.

5A and 5B are diagrams showing a state in which the metal fitting is conveyed in the conveying step of FIG.

FIG. 6 is a diagram showing a method of transferring metal fittings between a bonding process and a carrying process in the same embodiment.

FIG. 7 is a diagram showing a method of performing an adhesion treatment on a metal fitting of a vibration-proof rubber having a different form from that of FIGS. 3 and 4 in the same embodiment.

FIG. 8 is a diagram showing an example of a manufacturing line, a conveying method, and a bonding method in a conventional vibration-proof rubber manufacturing method.

[Explanation of symbols]

10 conveying path 12 vulcanizer 24, 36, 44 anti-vibration rubber 26, 46 brim 28, 38, 48 outer cylinder metal fitting 30, 40, 54 inner cylinder metal fitting 32, 42, 56 rubber elastic body 60 main rotation for outer cylinder metal fitting Holder 62 Main rotation holder for inner cylinder metal fitting 78,150,152,154 Projection pin 80 Rotation drive device 96,110,156 Auxiliary holder for outer cylinder metal fitting 98,170 Small diameter part 100,120,172 Large diameter part 103,126 , 166, 176 Holder locating fitting surface 102, 112, 122, 162, 174 Metal fitting locating fitting surface 104 Protruding portion 106 Retained portion 114 Supporting portion 116, 168 Inner tubular metal fitting auxiliary holder 128 Pallet 130 Transfer Main holder 136, 138, 140 Support base (support) 160 Plate-like part 164 Held part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location // B29C 65/52 7639-4F F16F 15/08 K 9138-3J B29K 21:00 105: 22 B29L 9:00 (72) Inventor Keisuke Ito Komaki City, Aichi 3600 Amigazu, Kita Sotoyama, Tokai Rubber Industry Co., Ltd.

Claims (6)

[Claims] 1. An inner tubular metal fitting and an outer tubular metal fitting are transported by a transporting means along a predetermined transport path, and at the time of a bonding process, the inner tubular metal fitting and the outer circumferential metal surface of the outer tubular metal fitting are attached to each other. After applying the adhesive, set the outer and inner tubular fittings in the mold of the vulcanizer and inject the rubber material between the inner and outer tubular fittings to form the inner tubular fitting. In the method of manufacturing an anti-vibration rubber of a form in which an annular rubber elastic body is vulcanized and bonded to the outer tubular metal fitting, at the time of applying an adhesive to the inner peripheral surface of the outer tubular metal fitting in the bonding treatment step, A main rotating holder for outer cylinder fittings is provided in common for each outer cylinder fitting of different types of anti-vibration rubber, and is a member that is detachable from the main rotating holder for outer cylinder fittings and has a ring shape. The outer circumference of each of the outer rubber fittings of the An inner diameter side fitting position fitting surface that is removably fitted to the surface, a support portion of the outer tubular metal fitting, and a supported portion supported by the upper end of the main rotating holder for the outer tubular metal fitting, An auxiliary holder for the outer tubular metal fitting dedicated to a specific product having a holder positioning mating surface that is removably fitted to the main rotary holder for the outer tubular metal fitting to determine the position perpendicular to the axis of the outer tubular metal fitting. The outer tubular metal fitting is supported on the upper portion of the outer tubular metal fitting main rotating holder together with the outer tubular metal fitting in the supported portion, The auxiliary holder for the outer tubular metal fitting is spray-applied to the inner peripheral surface of the outer tubular metal fitting while being rotated by the rotation driving device together with the outer tubular metal fitting. Remove the auxiliary holder for the outer cylinder fitting from the main rotation holder for the outer fitting. Anti-vibration rubber manufacturing method characterized by carrying the outer tubular member to the next step. 2. The outer tubular metal fitting according to claim 1, wherein the outer tubular metal fitting is provided with a collar having an outer peripheral surface at a predetermined axial position, and the outer tubular metal fitting auxiliary holder is provided with an outer peripheral surface at the axial end portion thereof. A method for producing a vibration-proof rubber, characterized in that the support portion having a form of supporting a lower surface is provided. 3. The outer cylindrical metal fitting according to claim 1, wherein the outer cylindrical metal fitting has a flangeless pipe shape, and the auxiliary holder for the outer cylindrical metal fitting has an inwardly projecting shape on an inner peripheral surface side thereof. The method for producing a vibration-proof rubber, comprising: the support portion that supports the lower end surface of the outer tubular metal member. 4. The held part to be held by a robot hand is provided on the outer peripheral surface side of the outer tubular metal fitting auxiliary holder in the same shape and size for each auxiliary holder according to claim 1, 2, or 3. A method of manufacturing a vibration-proof rubber, which is provided at a position having the same relative relation position with respect to the main rotary holder for outer cylinder fittings when set in the main rotary holder for outer cylinder fittings. . 5. The inner tubular metal fitting of a different type of anti-vibration rubber according to claim 1, 2, 3 or 4, when the adhesive is applied to the outer peripheral surface of the inner tubular metal fitting in the bonding treatment step. In addition to providing the main rotating holder for the inner tubular metal fittings, a ring-shaped member that is detachable from the main rotating holder for the inner tubular metal fittings, and the inner circumference of each of the inner tubular metal fittings of different types of anti-vibration rubber is provided. A fitting surface for locating the metal fitting on the outer diameter side, which has a size corresponding to the surface and is removably fitted to the inner peripheral surface, a support portion for the inner tubular metal fitting, and a main rotation holder for the inner tubular metal fitting. And a supported portion supported by the upper end of the inner cylindrical metal fitting and an inner diameter side holder positioning fitting that is removably fitted on the outer peripheral surface of the protruding pin provided on the upper end surface of the main rotating holder for the inner tubular metal fitting. An inner cylinder metal fitting auxiliary holder for a specific product, which has a surface In a state in which the metal fittings are supported, the inner tubular fittings are placed together with the inner tubular fittings on the upper end portion of the main rotating holder for the inner tubular fittings, and the main rotating holder for the inner tubular fittings and the auxiliary holder are attached to the inner tubular fittings. While being driven to rotate by a rotary drive together with the inner cylinder fitting, an adhesive is spray-applied to the outer peripheral surface of the inner cylinder fitting, and then the inner cylinder fitting after the adhesion treatment is used together with the inner holder auxiliary holder for the inner fitting. A method for producing a vibration-proof rubber, comprising removing the inner cylinder fitting from a rotary holder and carrying the inner cylinder fitting to the next step. 6. The method according to claim 1, 2, 3, 4, or 5,
A state in which the transfer means is (a) a transfer pallet and (b) is projected on the transfer pallet, and the auxiliary holder for the outer cylinder fitting is fitted in the outer cylinder fitting on the fitting position for fitting the fitting. And a main holder for transporting which is supported on the upper end portion in a mounted state, and (c) an upward protruding pin that is directly or indirectly inserted in the inner tubular metal member so as to be removably inserted to determine a position perpendicular to the axis. The inner tubular metal fitting or a support portion for supporting the inner tubular metal fitting and the outer tubular metal fitting, and the support portion has the same upper end of the inner tubular metal fitting and the upper end of the outer tubular metal fitting between different types. A method for producing a vibration-proof rubber, characterized in that it is supported at a height position.