JP2009196045A - Rubber turning-over device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten a time required for turning over the cylindrical section of a diaphragm of a liquid-sealed vibration damper, and to turn over the cylindrical sections of a large number of diaphragms at a time. <P>SOLUTION: This rubber turning-over device R moves each expanding member 8 inward of the cylindrical section 42 of the diaphragm by moving a support part 60 supporting the diaphragm 4 upward, and moves each expanding member 8 radially outward of the cylindrical section 42 to expand the cylindrical section 42 radial outward. With the cylindrical section 42 expanded by each expansion member 8, the opening edge of a turning-over member 9 is brought into contact with the cylindrical section 42 and the cylindrical section 42 is turned over by moving the turning-over member 9 downward. After the turning-over member 9 is moved upward, each expansion member 8 is moved radially inward of the cylindrical section 42, and the support part 60 supporting the diaphragm 4 is moved downward. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rubber turning device.

  Conventionally, automobile engine mounts are well known as liquid-filled vibration damping devices. The basic structure is that a rubber elastic body is interposed between the mounting bracket on the engine side and the mounting bracket on the vehicle body side, and a liquid chamber is placed between both brackets so that the volume changes as the rubber elastic body deforms. The liquid chamber is divided into a main liquid chamber and a sub liquid chamber by a partition member (orifice panel), an orifice passage is provided to communicate the main liquid chamber and the sub liquid chamber, and the partition member is covered. Thus, a diaphragm is disposed. When the liquid flows through the orifice passage, engine vibration in a predetermined frequency region can be effectively absorbed and attenuated.

As an assembly device for such a liquid-filled vibration isolator, for example, a device as shown in Patent Document 1 is known. In this apparatus, a liquid assembly device and a liquid sealing device for supplying liquid in a state where a liquid tank is assembled on the opening side of the main body part of the liquid-filled vibration isolator and incorporating each part inside the main body part and enclosing the liquid, A main body squeezing device that squeezes the opening side of the assembly in a state where the parts are incorporated, a cleaning / drying device that cleans and dries the assembly, and a bracket mounting device that attaches and fixes the mounting bracket to the assembly. Are arranged so as to form a substantially U shape in a plan view. As a result, the installation space can be made compact, equipment costs can be greatly reduced, rationalized, and productivity can be improved.
JP 2003-329079 A

  By the way, there exists a thing formed by combining a diaphragm and a partition member as said liquid enclosure type vibration isolator. In this apparatus, as illustrated in FIG. 12, the diaphragm 104 is provided on a metal ring portion 140, a rubber main body portion 141 provided on the upper surface of the ring portion 140, and a lower surface of the ring portion 140. And a cylindrical portion 142 made of rubber. Then, the partition member 105 is turned inside the tubular portion 142 of the diaphragm 104 and then set therein, and the tubular portion 142 is returned to the original state, thereby being accommodated inside the diaphragm 104. Yes.

  However, in the past, since the operator manually turned over the cylindrical portion 142, it took time for the turning work, and because it was a manual operation, the worker was apt to get tired, and it was uniform. It was difficult to turn over a large number of cylinder parts 142.

  The present invention has been made in view of such a point, and an object of the present invention is to shorten the time required to turn over the cylindrical portion of the diaphragm of the liquid filled type vibration damping device, and to reduce the number of diaphragms at once. It is to turn over the tube part.

  1st invention is provided in the ring body, the rubber-made main-body part provided in the surface of the axial direction one side of this ring part, and the surface of the axial direction other side of this ring part, and a partition member inside A rubber turning device for turning the cylinder part in a liquid-filled vibration isolator having a diaphragm having a rubber cylinder part in which the cylinder is accommodated, and supporting the diaphragm so that the cylinder part is on the upper side A plurality of spreading members provided on the upper side of the support unit and arranged on the same circumference, and provided on the upper side of the support unit, and a circular opening is formed in the central portion. A plate-like turning member, and by moving a support portion on which the diaphragm is supported upward to move the spreading members to the inside of the cylindrical portion of the diaphragm, On the radially outer side of the cylindrical part By opening the tube member, the tube member is expanded radially outward, and the tube member is expanded by the expanding members, and the turn member is moved downward to open the turn member. The edge portion is brought into contact with the tube portion, the tube portion is turned over, and then the turn-up member is moved upward, and then each spreading member is moved radially inward of the tube portion, and The support portion on which the diaphragm is supported is moved downward.

  As described above, the rubber turning device is used to turn the cylindrical portion of the diaphragm of the liquid filled type vibration damping device. Therefore, compared to the case where the operator manually turns over the cylinder part as in the prior art, the time required to turn over the cylinder part is shortened, and a large number of diaphragm cylinders are used at one time. It becomes possible to turn the part over.

  According to a second invention, in the first invention, three or more spreading members are provided as the plurality of spreading members.

  Thereby, since the three or more spreading members are provided as the plurality of spreading members, the cylindrical portions can be evenly spread radially outward by moving each spreading member to the radially outer side of the cylindrical portion. Therefore, the opening edge part of the turning member can be reliably brought into contact with the cylinder part, and the cylinder part can be reliably turned over.

  According to a third invention, in the first or second invention, each of the spreading members has a substantially cylindrical shape as a whole.

  Thereby, since each expansion member has comprised the substantially cylindrical shape as a whole, a cylinder part can be equally expanded radially outside by moving each expansion member to the radial direction outer side of a cylinder part. Therefore, the opening edge part of the turning member can be reliably brought into contact with the cylinder part, and the cylinder part can be reliably turned over.

  According to a fourth aspect, in the third aspect, after turning the cylindrical portion, the turning member is moved upward while rotating.

  By the way, after turning the tube portion, if the turn member is simply moved upward, the turn portion of the tube portion is pulled (sticked) to the turn member that moves upward. There is a risk of returning to the original state.

  Here, according to the present invention, after turning the cylindrical portion, the turning member is moved upward while rotating, so that the turned portion of the tubular portion is pulled by the turning member that moves upward. Can be suppressed, and the cylindrical portion can be prevented from returning to the original state.

  In addition, when a part of the cylindrical portion is not turned over, the portion that is not turned up can be turned up by moving the turning member upward while rotating the turned-up member.

  According to the present invention, the cylinder portion of the diaphragm of the liquid filled type vibration isolator is turned over by the rubber turning device, so that the operator manually turns over the tube portion as in the past. Compared with the case where it has been done, the time required to turn over the tubular portion can be shortened, and the tubular portions of many diaphragms can be turned over at a time.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

-Engine mount configuration-
FIG. 1 and FIG. 2 show an engine mount M for an automobile which is an embodiment of a liquid-filled vibration isolator according to the present invention. This engine mount M is formed by integrally vulcanizing mounting brackets 1 and 2 attached to the engine side and the vehicle body side together with the rubber elastic body 3, and is interposed between the engine and the vehicle body (not shown). It is. FIG. 1 is a perspective view seen obliquely from above, and FIG. 2 is a longitudinal sectional view.

  The engine-side mounting bracket 1 (hereinafter referred to as the engine bracket 1) is, for example, an aluminum alloy casting, and includes a substantially cylindrical housing portion 10 that is disposed with the cylinder axis Z1 substantially in the vertical direction, and an outer periphery thereof. And a connecting arm portion 11 in the form of a substantially rectangular block extending slightly inclined with respect to the cylinder axis Z1 from a predetermined range in the circumferential direction on the one side (left side in FIG. 1) (over a substantially half circumference in the example in the figure). The connecting arm portion 11 is provided with through holes 11a and 11a in the thickness direction, and is fastened to a member on the engine side by a bolt (not shown) or the like.

  On the other hand, the mounting bracket 2 on the vehicle body side is formed by processing a steel plate, for example, and is disposed below the housing portion 10 of the engine bracket 1 and is a downwardly open bowl-shaped portion positioned substantially concentrically with the cylinder axis Z1. 20 and an L-shape extending substantially horizontally from one side (the right part in FIG. 1) at the lower end opening edge of the bowl-shaped part 20 toward the outside in the radial direction, and extending downward along the cylinder axis Z1 on the opposite side. (Hereinafter, referred to as a plate fitting 2). The plate portion 21 of the plate fitting 2 is bent and assembled to a vehicle body side member (not shown).

  The rubber elastic body 3 is formed in a bowl shape as a whole, and connects the lower portion of the housing portion 10 of the engine bracket 1 and the bowl-shaped portion 20 of the plate fitting 2. That is, a tapered surface that expands downward is formed on the inner periphery of the lower portion of the housing portion 10, and the upper portion of the rubber elastic body 3 is vulcanized and bonded to cover this surface. A thick portion extending downward from the inner and outer periphery of the rubber elastic body 3 is narrowed from the main spring portion 30, and an extension portion 31 extending further downward is connected to the lower end of the rubber plate 3. The outer periphery of the bowl-shaped part 20 is covered and vulcanized.

  A space that opens upward is formed inside the main spring portion 30 that is formed to be narrowed as described above, and a diaphragm assembly A is disposed so as to close the upper opening. That is, the housing portion 10 of the engine bracket 1 has an inner periphery whose diameter is particularly enlarged at the upper portion, and an annular step portion is formed between the housing portion 10 and the lower portion, and the diaphragm assembly A is fitted into the step portion from above. ing.

  As shown in FIGS. 1 to 5, the diaphragm assembly A is a combination of a diaphragm 4 and a resin orifice board 5 (partition member). The diaphragm 4 includes an aluminum ring portion 40, a rubber main body 41 provided on an upper surface (a surface on one axial direction side) of the ring portion 40, and a lower surface (the other side in the axial center direction) of the ring portion 40. And a rubber-made cylinder part 42 provided on the surface).

  The ring portion 40 has an annular shape. The main body 41 is in a normal truncated conical shape and is located inside the central opening 40a of the ring part 40, and its volume is significantly changed by being inverted up and down. The upper end of the engine bracket 1 is closed by the main body portion 41 whose volume changes as described above, and a liquid chamber F in which a liquid is sealed is formed inside the rubber elastic body 3. The liquid chamber F is divided into upper and lower portions by the orifice plate 5, the lower side is the main liquid chamber f1, and the upper side, that is, the portion partitioned by the orifice plate 5 and the main body 41 is the sub liquid chamber f2. .

  The cylindrical portion 42 has a substantially cylindrical shape extending downward from the outer edge of the lower surface of the ring portion 40, and the orifice plate 5 is accommodated therein. A seal portion 42a extending radially inward is integrally formed at the lower end of the cylindrical portion 42 in an annular shape, and the space between the housing portion 10 of the engine bracket 1 is sealed by the seal portion 42a.

  The orifice plate 5 has a disk shape as a whole, and a rubber movable plate 50 is accommodated therein. The movable plate 50 absorbs the fluid pressure fluctuation in the main fluid chamber f1 by vibrating in synchronization with the vibration when a vibration having a relatively high frequency and a small amplitude is input. That is, a plurality of through holes (not shown) are formed in the orifice plate 5 so that the storage chamber of the movable plate 50 communicates with the main liquid chamber f1 and the sub liquid chamber f2.

  Both liquid chambers f1 and f2 defined by the orifice plate 5 communicate with each other by an orifice passage P formed in an annular shape on the periphery of the ring portion 40 of the diaphragm 4 and the periphery of the orifice plate 5, respectively. Then, the buffer solutions in the main liquid chamber f1 and the sub liquid chamber f2 flow through each other through the orifice passage P, so that vibration with a relatively low frequency and large amplitude acting on the main liquid chamber f1 from the rubber elastic body 3 is obtained. Is to be attenuated. At this time, the main body 41 is deformed so as to absorb the volume change of the sub liquid chamber f2 accompanying the circulation of the buffer solution.

  The orifice board 5 is set inside after turning the cylindrical portion 42 of the diaphragm 4 by a rubber turning device R (described later) (see FIG. 11 (f)). By returning to this state, the diaphragm 4 is housed inside.

  Although only shown in FIGS. 1 and 2, the outer periphery of the housing portion 10 of the engine bracket 1 has thicknesses on both sides in the direction orthogonal to the extending direction of the connecting arm portion 11 when viewed along the cylinder axis Z1. The meat rubber layers 6 and 6 are vulcanized and bonded, and this constitutes a stopper rubber that comes into contact with a stopper member on the vehicle body (not shown).

-Configuration of rubber turning device-
As shown in FIGS. 6 to 9, the rubber turning device R is provided around the support base 6, the contact member 7 provided on the upper side of the support base 6, and the periphery of the contact member 7. Four spreading members 8 and a turn-back member 9 provided around each spreading member 8 are provided.

  The support base 6 is provided so as to extend in the horizontal direction, and a disk-like support portion 60 is provided on the upper surface thereof. A circular recess 60a is formed on the upper surface of the support portion 60 so as to open upward and support the diaphragm 4 so that the cylindrical portion 42 is on the upper side and the ring portion 40 is on the lower side. . The axial center Z2 direction of the cylindrical portion 42 of the diaphragm 4 supported by the concave portion 60a (the axial direction of the concave portion 60a) coincides with the vertical direction. In FIGS. 6 and 8, the illustration of the diaphragm 4 is omitted for easy understanding of the drawings.

  The abutting member 7 is a disk-shaped member provided so as to be coaxial with the cylindrical portion 42 (the recessed portion 60a of the support portion 60) of the diaphragm 4 supported by the support portion 60 below each spreading member 8. In the normal state (the state when the operation of the rubber turning device R is stopped (see FIGS. 6 and 7), the same applies hereinafter), it is located below the turning member 9.

  Each of the spreading members 8 has an arc shape disposed so as to extend in the vertical direction on the upper side of the support portion 60, and is generally a generally cylindrical shape and is supported by the support portion 60 in a normal state. The four cylinder portions 42 are arranged on the same circumference so as to be coaxial with each other. That is, each spreading member 8 is formed by dividing a cylinder into four parts. Further, each spreading member 8 is inserted through the central opening 9a of the turning member 9 and is positioned radially inward from the cylindrical portion 42 of the diaphragm 4 supported by the support portion 60 in a normal state. Step portions 8a and 8b are formed in an arc shape on the inner periphery and outer periphery of the lower end portion of each spreading member 8, and the contact member 7 is accommodated in the step portion 8a on the inner periphery side in a normal state. Yes.

  The turning member 9 is a disc-shaped member provided on the upper side of the support portion 60 so as to be coaxial with the cylindrical portion 42 of the diaphragm 4 supported by the support portion 60, and at the center portion thereof, The circular opening 9 a is formed so as to be concentric with the cylindrical portion 42 of the diaphragm 4 supported by the support portion 60. That is, the turning member 9 has an annular shape as a whole, and the center of the central opening 9 a coincides with the axis of the turning member 9. Moreover, the inner periphery of the center opening 9a of the turning member 9 has an inner periphery whose diameter is increased at the lower portion, and an annular step portion 9b is formed between the inner periphery and the upper portion.

  As shown in FIG. 10, the rubber turning device R includes a first driving unit 100 that drives the support base 6, a second driving unit 101 that drives each spreading member 8, and a first driving unit that drives the turning member 9. 3 drive part 102 and the control part 103 which controls these 1st-3rd drive parts 100-102 are further provided. The first drive unit 100 includes, for example, an air cylinder and the like, and can move the support base 6 (support unit 60) up and down in the vertical direction. The second drive unit 101 includes, for example, an air cylinder, and can simultaneously move the spreading members 8 in the radial direction of the cylindrical portion 42 of the diaphragm 4 set on the support unit 60. The third drive unit 102 includes, for example, an air cylinder and the like, and the turning member 9 is rotated around the center (its axis) of the center opening 9a as the center of rotation, and is moved up and down in the vertical direction. It is possible to move up and down while rotating about the center of the central opening 9a.

-Rubber-back method-
Hereinafter, a rubber turning method using the rubber turning device R will be described with reference to FIG. In FIG. 11, illustration of the support base 6 and the like is omitted for easy understanding of the drawing.

  First, an operator sets the diaphragm 4 on the support portion 60 of the support base 6 so that the cylindrical portion 42 is on the upper side (see FIG. 7). Next, when the operator presses the operation start button of the rubber turning device R, the operation of the rubber turning device R starts.

  Hereinafter, the operation of the rubber turning device R will be described. First, as shown in FIG. 11A, the support base 6 on which the diaphragm 4 is held by the first drive unit 100 is raised, so that the inner peripheral wall of the ring portion 40 of the diaphragm 4 is brought into contact with the lower surface of the contact member 7. The lower end portion of each spreading member 8 is moved to the inside of the cylindrical portion 42 of the diaphragm 4. Thus, when each spreading member 8 is put into the cylindrical portion 42, the lower end portion of each spreading member 8 and the seal portion 42 a of the cylindrical portion 42 come into contact with each other.

  Next, as shown in FIG. 11 (b), each spreading member 8 is opened from the axial center of the cylinder portion 42 by simultaneously opening the spreading members 8 outward in the radial direction of the cylinder portion 42 by the second drive unit 101. The distance is moved to a predetermined position that is the same as each other, and the cylindrical portion 42 is pushed outward in the radial direction. At this time, the amount of expansion of the cylindrical portion 42 increases from the ring portion 40 side toward the seal portion 42a side.

  Then, as shown in FIG. 11 (c), the third drive unit 102 turns the turning member 9 to a predetermined height position (substantially the same height as the contact member 7) in a state where the cylindrical part 42 is spread by the spreading member 8. 11), the opening edge portion (inner peripheral edge portion) of the turning member 9 is brought into contact with the seal portion 42a of the cylindrical portion 42, and as shown in FIG. Invert the upper part radially outward and turn over. When the tubular portion 42 is folded back in this manner, the turned portion of the tubular portion 42 and the stepped portion 9b of the turned-back member 9 come into contact with each other, and the inner periphery of the tubular portion 42 and the stepped portion 8b on the outer peripheral side of the spreading member 8 are brought into contact. Abut.

  Then, as shown in FIG. 11 (e), the third driving unit 102 turns the turning member 9 around the center of the center opening 9 a as the center of rotation while maintaining the spreading members 8 at the predetermined positions. While raising, return to the original height. Specifically, after turning the turning member 9, it is raised while rotating as it is. It should be noted that, even after the tubular portion 42 is turned over, the expanding members 8 are kept in the above-mentioned predetermined positions unless the tubular portion 42 is turned over. This is because the part 42 may return to the original state.

  Thereafter, as shown in FIG. 11 (f), the second driving unit 101 simultaneously closes the spreading members 8 to the inside of the cylindrical part 42 in the radial direction and returns it to the original position. Next, the support base 6 on which the diaphragm 4 is set is lowered by the first drive unit 100 and returned to the original height position. Then, the turning member 9 is rotated around the center of the central opening 9a by the third drive unit 102.

  Thus, the operation of the rubber turning device R is completed. That is, the turning of the cylindrical portion 42 is completed. Finally, the operator removes the diaphragm 4 from the support portion 60.

-Effect-
As described above, according to the present embodiment, the rubber turning device R turns over the cylindrical portion 42 of the diaphragm 4 of the engine mount A. Therefore, as compared with the case where the operator manually turns over the cylindrical portion 42 as in the prior art, the time required for turning up the cylindrical portion 42 is shortened, and a large number of diaphragms are used at one time. It is possible to turn over the four cylindrical portions 42.

  Moreover, since the four spreading members 8 are provided as the plurality of spreading members 8, the cylindrical portions 42 can be spread evenly outward in the radial direction by moving each spreading member 8 radially outward of the cylindrical portion 42. it can. Therefore, the opening edge portion of the turning member 9 can be reliably brought into contact with the cylindrical portion 42, and the cylindrical portion 42 can be reliably turned over.

  Furthermore, since each expansion member 8 has a substantially cylindrical shape as a whole, by moving each expansion member 8 outward in the radial direction of the cylindrical portion 42, the cylindrical portion 42 is evenly expanded outward in the radial direction. Can do. Therefore, the opening edge portion of the turning member 9 can be reliably brought into contact with the cylindrical portion 42, and the cylindrical portion 42 can be reliably turned over.

  By the way, if the turning member 9 is simply moved upward after turning the tubular portion 42, the turned portion of the tubular portion 42 is pulled (sticked) by the turning member 9 moving upward. There is a possibility that the cylindrical portion 42 may return to the original state.

  Here, according to the present embodiment, after turning the tubular portion 42, the turning member 9 is moved upward while rotating, so that the turned portion of the turned portion of the tubular portion 42 moves upward. 9 can be suppressed, and the cylindrical portion 42 can be prevented from returning to the original state.

  Moreover, when a part of the cylinder part 42 is not turned over, if the turning member 9 is moved upward while rotating, the part that is not turned over can be turned over.

(Other embodiments)
In the above embodiment, four spreading members 8 are provided as the plurality of spreading members 8, but two, three, or five or more spreading members 8 may be provided. However, from the viewpoint of evenly expanding the cylindrical portion 42 radially outward, it is desirable to include three or more expanding members 8.

  Moreover, in the said embodiment, although each spreading member 8 has comprised the substantially cylindrical shape as a whole, each spreading member 8 does not make a substantially cylindrical shape as a whole, and it may arrange | position at intervals mutually. Good. However, the former is desirable from the viewpoint of evenly extending the cylindrical portion 42 radially outward.

  Furthermore, in the said embodiment, after turning up the cylinder part 42, it is raised, rotating the turning member 9, However, You may raise without turning the turning member 9. FIG. However, the former is desirable from the viewpoint of suppressing the cylindrical portion 42 from returning to the original state.

  The present invention is not limited to the embodiments, and can be implemented in various other forms without departing from the spirit or main features thereof.

  As described above, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is defined by the claims, and is not limited by the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  As described above, the rubber turning device according to the present invention shortens the time required to turn the diaphragm tube portion of the liquid-filled vibration isolator, and turns a large number of diaphragm tube portions at a time. It can be applied to applications.

It is the perspective view which looked at the engine mount which concerns on embodiment of this invention from diagonally upward. It is a longitudinal cross-sectional view of an engine mount. It is the perspective view which looked at the diaphragm assembly from diagonally upward. It is a longitudinal cross-sectional view of a diaphragm assembly. It is a longitudinal cross-sectional view of a diaphragm. It is a side view of the principal part of a rubber turning device. It is the front view which cut the principal part of the rubber turning device partially. It is a top view of a support stand. It is a bottom view of an abutting member, a spreading member, and a turning member. It is a block diagram of a rubber turning device. It is process drawing which shows the process of the rubber turning method using a rubber turning apparatus. It is a longitudinal cross-sectional view of a diaphragm.

Explanation of symbols

4 Diaphragm 40 Ring portion 41 Body portion 42 Tube portion 5 Orifice panel (partition member)
6 Support stand 60 Support portion 8 Spreading member 9 Turning member A Diaphragm assembly M Engine mount (liquid-filled vibration isolator)
R Rubber turning device

Claims (4)

A rubber body provided on a ring portion and a surface on one side in the axial direction of the ring portion, and a rubber body provided on a surface on the other side in the axial direction of the ring portion and in which a partition member is accommodated A rubber turning device for turning the cylindrical portion in a liquid-filled vibration isolator equipped with a diaphragm having a cylindrical portion,
A support part for supporting the diaphragm so that the cylindrical part is on the upper side;
A plurality of spreading members respectively provided on the upper side of the support and disposed on the same circumference;
It is provided on the upper side of the support part, and is provided with a plate-like turning member in which a circular opening is formed in the center part,
By moving the support part on which the diaphragm is supported upward, the spreading members are moved to the inside of the cylindrical part of the diaphragm, and then the spreading members are moved radially outward of the cylindrical part. By expanding the cylindrical portion radially outward, and moving the turning member downward in a state where the cylindrical portion is widened by the spreading members, the opening edge of the turning member is The tubular portion is turned against the tubular portion, and then the turning member is moved upward, and then each of the spreading members is moved radially inward of the tubular portion, and the diaphragm A rubber turning device, wherein a supported part is moved downward. The rubber turning device according to claim 1,
3. A rubber turning device comprising three or more spreading members as the plurality of spreading members. In the rubber turning device according to claim 1 or 2,
Each of the spreading members has a substantially cylindrical shape as a whole. In the rubber turning device according to any one of claims 1 to 3,
A rubber turning device, wherein after turning the cylindrical portion, the turning member is moved upward while rotating.

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