JP2011120409A - Mount for fixing motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mount for fixing a motor, in which an attaching plate is robustly bonded to a anti-vibration elastic member. <P>SOLUTION: Openings 9, 12 for inserting a rotary shaft 6 of a motor, and a bonding surface 3a which is polished like a ring around each of the openings are provided on the attaching plates 2, 3 such as a metal or another conductive material, a ring-like elastic member 4 is bonded using an adhesive applied to the bonding surfaces and integrated, and a conductive paint is applied between the elastic member 4 and the surfaces of the attaching plates 2, 3 like a bridge to cause electric conduction. Thus, the elastic member 4 and the attaching plates 2, 3 are robustly bonded to each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a motor fixing mount such as a stepping motor, and relates to an improvement of an anti-vibration mount mechanism that performs anti-vibration by interposing an elastic member such as rubber between a motor housing and an installation frame of various devices.

  In general, when a motor is fixed to an installation frame of various devices, a damper mechanism is widely used that absorbs vibration and noise generated in the motor by interposing a mount with the motor housing. This mount mechanism is known as a mechanism in which a rubber layer is interposed between a pair of mounting metal plates in a sandwich shape, and the rubber layer is used to prevent vibration and sound.

  For example, Patent Document 1 discloses an apparatus in which an elastic layer is provided between first and second mounting plates, and the first plate is fixed to the motor housing and the second plate is fixed to the installation frame with screws or the like. . The first and second plates are made of metal, the elastic body layer is made of a rubber material, and the elastic body and the plate are integrated by vulcanization adhesion.

  In addition, a method of vulcanizing and bonding an elastic body (anti-vibration rubber) between an outer casing (such as a bracket) of a motor and a single mounting plate is also known. When this method is used, the cost can be reduced with one plate. It is also known that the anti-vibration rubber and the adhesive are made of a conductive composition so that the anti-vibration mount is grounded at the same time as the anti-vibration and sound.

JP2003-148556A (FIG. 2)

  As described above, when an elastic member is bonded to a metal or other mounting plate to reduce the vibration noise generated in the motor, the bonding between the mounting plate and the elastic member becomes a problem. For example, when an elastic member is interposed between a pair of mounting plates, or when an elastic member is interposed between one mounting plate and a motor outer casing, the mounting plate and the elastic member are firmly bonded in any case. If this is not done, the motor will fall off during use, leading to equipment failure.

  For this reason, the adhesive is required to have a composition that is resistant to vibrations generated in the motor and at the same time resistant to heat generated in the motor. At the same time, the adhesive is required to have conductivity in order to install the motor on the installation frame. However, the adhesives currently on the market have a high heat-resistant temperature, and at the same time, the conductive composition is expensive and causes an increase in cost.

  Therefore, the present inventor conducted an experiment on the adhesive strength between the mounting plate and the elastic member, and came to find out that the oil and fat content on the adhesive surface greatly affects the adhesive strength. Therefore, an attempt was made to remove the oil and fat on the adhesive surface by washing the mounting plate manufactured by metal press working. As a result, the cleaning level (the degree of whether or not the fats and oils have been completely removed) cannot be easily visually determined. For this reason, the problem of increasing the cost of scrapping was encountered.

  At the same time, in order to ground from the mounting plate to the installation frame, a material having a conductive composition according to the specifications is conventionally selected for the adhesive. The selection of the adhesive requires the above-described adhesive strength and heat resistance as well as electrical conductivity, and thus has encountered a problem that an expensive material has to be used.

  Therefore, the present inventor pays attention to the fact that the degree of removal of oil and fat adhering to the surface can be easily visually recognized by polishing the adhesive surface (buff polishing, sand polishing, etc.), and at the same time having conductivity as an adhesive. We focused on conducting the conductive elastic member and the conductive plate with the conductive paint.

SUMMARY OF THE INVENTION An object of the present invention is to provide a motor fixing mount capable of firmly bonding a mounting plate and an elastic member for vibration isolation and capable of reliably grounding a motor housing to the mounting plate.
Another object of the present invention is to provide a motor fixing mount that can be manufactured at low cost with simple manufacturing equipment.

  In order to achieve the above object, the present invention provides an attachment plate for a metal or other conductive material provided with an opening through which the rotating shaft of the motor is inserted, and an adhesive surface polished in a ring shape around the opening. A ring-shaped elastic member is bonded and integrated with an adhesive applied to the surface, and a conductive paint is applied in a bridge shape between the elastic member and the mounting plate surface so as to be electrically connected. It is said. As a result, the elastic member and the mounting plate can be firmly bonded, and the two can be electrically connected to each other.

  The configuration will be described in detail below. A motor fixing mount for preventing vibration by interposing a ring-shaped elastic member having a predetermined thickness between the motor casing and the installation frame, for fixing the motor to the installation frame. An attachment plate and a ring-shaped elastic member attached to the attachment plate are provided. The mounting plate is made of a conductive material, and has an opening through which the rotation shaft of the motor is inserted, and an adhesive surface polished in a ring shape around the opening.

  The ring-shaped elastic member is made of a conductive elastic material and has a ring shape that fits the bonding surface. The mounting plate and the ring-shaped elastic member are integrally fixed with an adhesive applied to the bonding surface. In addition, the mounting plate and the ring-shaped elastic member are configured to be electrically connected to each other by applying a conductive paint in a bridge shape on at least a part of the surface thereof.

  Furthermore, a motor fixing mount for preventing vibration by interposing a ring-shaped elastic member having a predetermined thickness between the motor housing and the installation frame, and a pair of first and second for mounting the motor on the installation frame An attachment plate and a ring-shaped elastic member adhered between the first and second attachment plates are provided. Each of the first and second mounting plates and the ring-shaped elastic member is made of a material having predetermined conductivity. Each of the first and second mounting plates has an opening through which the rotation shaft of the motor is inserted, and the opening. And an adhesive surface polished into a ring shape around the periphery of the substrate.

  The ring-shaped elastic member is formed in a ring shape that matches the bonding surface, and the pair of first and second ring-shaped elastic members and the ring-shaped elastic member are integrally fixed with an adhesive applied to the bonding surface. The first and second mounting plates and the ring-shaped elastic member are configured to be electrically connected by applying a conductive paint in a bridge shape on at least a part of the surface thereof.

  The motor fixing mount manufacturing method according to the present invention includes a pressing process for manufacturing a pair of mounting plates having openings through which the rotation shaft of the motor is inserted, and ring-shaped polished surfaces around the openings in the pair of mounting plates, respectively. A polishing step for forming an adhesive; an adhesive application step for applying an adhesive to the polishing surface; an elastomer attaching step for forming an uncrosslinked elastomer layer on the polishing surface to which the adhesive has been applied; and vulcanizing the elastomer layer A crosslinking step.

  In the present invention, a ring-shaped elastic member is provided on a mounting plate made of a conductive material and a ring-shaped elastic member is fixed with an adhesive, and a conductive paint is bridged between the elastic member and the surface of the mounting plate. The following effects can be obtained because it is applied and conductive.

  Since the mounting plate and the ring-shaped elastic member for vibration isolation are bonded to the polished bonded surface, there is no possibility that oils and fats remain on the bonded surface, and the two can be firmly bonded. At the same time, for example, even if it is a mounting plate manufactured by metal press processing, it is possible to easily see whether or not the oil and fat adhering to the surface has been removed by polishing processing, and when mass production, the residual oil and fat adhere It can be produced stably without any fluctuations in strength.

  Further, according to the present invention, the mounting plate and the ring-shaped elastic member are electrically connected by the conductive paint regardless of the composition of the adhesive, and the paint does not have a risk of peeling due to the vibration of the motor due to the action of the elastic ring-shaped elastic member. . Therefore, it is not necessary to select a conductive material for the composition of the adhesive, and it is possible to provide a motor fixing mount that can be manufactured at a low cost and has high durability.

The assembly exploded view which shows the whole structure of the mount for motor fixation concerning this invention. It is explanatory drawing of the assembly state in the apparatus of FIG. 1, (a) is explanatory drawing of a planar state, (b) is explanatory drawing of a cross-sectional state. 1 and 2 show an embodiment of a motor fixing mount, wherein (a) is an explanatory diagram of the planar configuration, (b) is an explanatory diagram of a cross-sectional configuration, and (c) is an explanatory diagram of (b). The expanded explanatory view of the I section shown. Process explanatory drawing which shows the manufacturing method of the mount for motor fixation concerning this invention.

  Hereinafter, the present invention will be described in detail based on illustrated embodiments. First, a motor fixing mount according to the present invention and then a manufacturing method thereof will be described. 1 and 2 show a first embodiment of a motor fixing mount, and FIG. 3 shows a second embodiment.

[Motor fixing mount]
[First Embodiment]
The first embodiment of the mount A shown in FIG. 1 connects a first mounting plate 2 to be mounted on an installation frame (for example, chassis) 10 of various devices, a second mounting plate 3 to which a motor housing 8 is mounted, and both these plates. The case where it comprises with the ring-shaped elastic member 4 to perform is shown.

  As shown in FIG. 1, the mount A includes a first mounting plate 2 and a second mounting plate 3, a ring-shaped elastic member 4 fixed between the plates, each mounting plate 2, 3 and the ring-shaped elastic member 4. Is constituted by a ground connection portion 5 (shown in FIG. 2B). In the figure, M is a stepping motor, 6 is its rotating shaft, and 7 is a transmission gear.

  The first mounting plate 2 is made of a metal or other conductive material. The shape is configured in an appropriate shape according to the dimensions of the motor housing 8. The illustrated one is made of an iron-based metal (SS, SC, SUS having SCM conductivity, etc.) and has a strength sufficient to support the motor. At the center, an opening 9 through which the rotating shaft 6 of the motor is inserted and screw holes 11a and 11b to be screwed to the installation frame 10 are formed.

  The second mounting plate 3 is also made of a conductive material, like the first mounting plate 2, and has an opening 12 through which the motor rotating shaft 6 is inserted and a screw hole that is screwed to the motor housing 8. 13a and 13b are formed.

  The ring-shaped elastic member 4 is made of a rubber material having a high vibration proof property such as natural rubber or artificial rubber. The illustrated one is formed of an elastomer such as vulcanized rubber. The ring-shaped elastic member 4 is also made of a conductive material, like the first and second mounting plates 2 and 3 described above. The illustrated one is formed of vulcanized rubber as will be described later. An unvulcanized elastomer impregnated with a conductive material is filled in a mold and heated to vulcanize (crosslink).

  At this time, an adhesive is applied to the bonding surfaces 2a and 3a of the first mounting plate 2 and the second mounting plate 3, and the elastomer is filled thereon. And it heats in a heating furnace. Then, the elastomer is crosslinked in a state where it is adhered to the first and second mounting plates 2 and 3, and the vulcanized rubber layer is attached. The details will be described in the manufacturing method described later.

  In the present invention, as shown in FIG. 1, the first and second mounting plates 2 and 3 are made of a metal material, for example, by appropriately pressing a mounting seat, and an opening 9 through which the motor rotating shaft 6 is inserted is formed at the center. 12 and ring-shaped adhesive surfaces 2a and 3a are provided around the opening. The bonding surfaces 2a and 3a constitute a ring-shaped bonding area suitable for the ring-shaped elastic member 4, and an adhesive is applied to the area (the illustrated one is vulcanized and bonded) to bond the ring-shaped elastic member 4. .

  Therefore, the present invention is characterized in that the adhesive surfaces 2a and 3a are polished to a polished surface, and an adhesive is applied thereon. Although this polishing method will be described later, sand polishing and buff polishing are preferable.

[Operation of First Embodiment]
As described above, in the first embodiment, the ring-shaped elastic member 4 is attached between the first and second mounting plates 2 and 3 in a sandwich shape. Then, the first mounting plate 2 is fixed to the installation frame 10 side of the apparatus, and the second mounting plate 3 is fixed to the motor housing 8 side with screws or the like. Then, the vibration generated in the stepping motor M is propagated from the contact portion from the motor housing 8 to the second mounting plate 3, and at this time, the vibration is also propagated from the screws 15 a and 15 b to the second mounting plate 3. Noise is propagated to the second mounting plate 3 from the same system path as vibration.

  On the other hand, the heat generated in the stepping motor M is radiated to the outside from the motor housing 8, and part of it is transmitted to the second mounting plate 3. For this reason, the motor housing 8 is constructed so as to integrally form a structure having a great heat dissipation effect, for example, a heat dissipation fin.

  Therefore, vibration, noise, and heat propagated to the second mounting plate 3 are propagated through the adhesive layer 3b to the ring-shaped elastic member 4 attached to the plate. At this time, vibration and noise are attenuated according to the vibration absorption characteristics of the ring-shaped elastic member 4. The vibration and noise attenuated by the ring-shaped elastic member 4 are propagated to the first mounting plate 2 via the adhesive layer 2b. At this time, vibration and noise are not propagated to the first mounting plate 2 to the extent that it affects the external installation frame 10. Further, although heat is propagated to the first mounting plate 2 according to the thermal conductivity of the ring-shaped elastic member 4, the amount of heat is attenuated to a negligible level.

  The vibration, noise, and heat transmitted to the first mounting plate 2 are transmitted to the installation frame 10 through the contact surface between the first mounting plate 2 and the installation frame 10 and the screws 16a and 16b. However, the physical quantity is attenuated to a negligible level and does not affect the installation frame 10.

  Next, the earth characteristics of the stepping motor M will be described. The motor housing 8 is made of a conductive material such as metal, and the second mounting plate 3 made of conductive metal is connected to the second mounting plate 3 via the contact surface and screws 15a and 15b. Are electrically connected. The second mounting plate 3 is attached with a ring-shaped elastic member 4 having conductivity via an adhesive layer 3b. The second mounting plate 2 and the ring-shaped elastic member 4 are electrically connected by the ground connection portion (conductive paint) 5 described with reference to FIG.

  Therefore, even when the adhesive layers 2b and 3b are non-conductive, and when the adhesive layers 2b and 3b do not have a predetermined conductive characteristic (resistance value required by the apparatus specifications), the motor housing 8 is electrically connected to the ring-shaped elastic member 4. Will be.

  Similarly, the ring-shaped elastic member 4 and the first mounting plate 2 are electrically connected by a ground connection portion 5. As a result, the motor housing 8 is electrically connected to the first mounting plate 2 and is electrically connected to the installation frame 10 via the mounting plate 2 and the screws 16a and 16b. Therefore, even if the ring-shaped elastic member 4 is wave-deformed by vibration, a part of the elastic member surface and the first mounting plate 2 and the second mounting plate 3 are connected by the conductive paint (ground connection portion) 5 to be electrically connected. There is no risk of breaking.

  2 is applied to a part of the inner wall surface (4d shown in FIG. 2) of the ring-shaped elastic member 4, for example, at four locations around the circumference. By comprising in this way, there is no possibility that the conductive paint 5 may be peeled off during the motor mounting operation. That is, since the conductive paint 5 is applied to the inner wall 4d of the ring-shaped elastic member 4, the appearance is not impaired, and it is not damaged (peeled) during the transportation process or the mounting operation. .

[Second Embodiment]
The second embodiment of the mount B shown in FIG. 3 shows a case in which the mounting plate 20 is attached to the installation frame 10 of various devices and a ring-shaped elastic member 21 attached to the mounting plate. FIG. 3 (a) shows the planar structure, and FIG. 3 (b) shows the cross-sectional structure. As shown in FIG. 3, the mount B has a mounting plate 20 and a ring-shaped elastic member 21 fixed to the mounting plate. And an earth connection portion 22 (shown in FIG. 3C) for conducting the mounting plate 20 and the ring-shaped elastic member 21. In the figure, M is a stepping motor, 23 is a rotating shaft thereof, and 24 is a transmission gear.

  The mounting plate 20 is made of metal or other conductive material and has an appropriate shape according to the dimensions of the motor housing 25. For example, an opening 26 through which the motor rotating shaft 23 is inserted and screw holes 27 a and 27 b that are screwed to the installation frame 10 are formed by pressing a ferrous metal.

  The ring-shaped elastic member 21 is made of a rubber material rich in vibration-proofing property and conductivity, and is formed in a ring shape having an inner hole 21d that fits the opening 26. The thing of illustration is comprised with the vulcanized rubber which has electroconductivity similarly to 1st Embodiment. The ring-shaped elastic member 21 has its front surface 21a bonded to the mounting plate 20 with an adhesive and the back surface 21b bonded to the motor housing 25 with an adhesive.

  Therefore, the mounting plate 20 is provided with a ring-shaped adhesive surface 20a that fits the ring-shaped elastic member 21 around the opening 26, and an adhesive is applied to this surface (the illustrated one is vulcanized and bonded) to form a ring. The elastic member 21 is attached. At this time, the adhesive surface 20a is polished to a polished surface. Similarly, the motor housing 25 is also provided with an adhesive surface 25 a having a shape suitable for the ring-shaped elastic member 21, and this adhesive surface 25 a is also polished to a polished surface like the adhesive surface 20 a of the mounting plate 20.

  And the front surface 21a of the ring-shaped elastic member 21 is bonded to the mounting plate 20, and the back surface 21b of the ring-shaped elastic member 21 is bonded to the motor housing 25. The illustrated one is manufactured by the following procedure because the ring-shaped elastic member 21 is made of vulcanized rubber.

  First, the mounting plate 20 and the motor housing 25 are individually manufactured. For example, the mounting plate 20 is formed by metal pressing, and the motor housing 25 is formed by die casting. Then, the adhesive surface 20a of the mounting plate 20 and the adhesive surface 25a of the motor housing 25 are formed on the polished surface by a polishing process such as buff polishing or sand polishing.

  An adhesive is applied to the adhesive surface 20a thus formed, the mounting plate 20 and the motor housing 25 are set in a mold, and the uncrosslinked elastomer is filled. Then, the ring-shaped elastic member 21 is formed by heating and crosslinking, and at the same time, the elastic member 21 is attached to the mounting plate 20 and the motor housing 25 by vulcanization. Thereafter, a conductive paint is applied to at least a part of the wall surface of the inner hole 21 d of the ring-shaped elastic member 21, the surface of the mounting plate 20, and the surface of the motor housing 25 to form the ground connection portion 22.

  Next, the operation of the second embodiment will be described. As described above, the motor housing 25 and the mounting plate 20 are integrally coupled via the ring-shaped elastic member 21. Therefore, vibration, noise, and heat generated in the stepping motor M are propagated to the ring-shaped elastic member 21 through the adhesive layer 20b.

  The vibration, noise, and heat propagated to the ring-shaped elastic member 21 are propagated to the mounting plate 20 via the adhesive layer 20b. At this time, the vibration and noise are attenuated by the action of the ring-shaped elastic member 21, and the vibration and noise transmitted to the mounting plate 20 are reduced to a level that can be substantially ignored. Further, the heat from the stepping motor M is similarly reduced by the thermal conductivity of the ring-shaped elastic member 21.

  Therefore, the motor casing 25 is electrically connected to the conductive ring-shaped elastic member 21 by the conductive paint of the ground connection portion 22. Similarly, the ring-shaped elastic member 21 and the mounting plate 20 are also connected to the ground. The part 22 is electrically connected. The mounting plate 20 is electrically connected to the installation frame 10 through contact surfaces that are in contact with each other and the connecting screws 28a and 28b. Accordingly, the stepping motor M is installed on the installation frame 10 via the motor casing 25, the conductive paint (ground connection part) 22, the ring-shaped elastic member 21, and the mounting plate 20.

  In the case of the second embodiment, since the parts corresponding to the second mounting plate 3 in the first embodiment are not required, the number of parts is small and the mounting work to the motor is not required at the same time. It can be reduced and the cost can be reduced.

[Mount Manufacturing Method]
Next, the manufacturing method of the mount in the first embodiment and the second embodiment described above will be described. As shown in the process diagram of FIG. 4, the process includes the following “pressing process”, “polishing process”, “adhesive application process”, “elastomer attaching process”, and “crosslinking process”.

"Pressing process (Step 1)"
The mounting plate is created by this pressing process. The mounting plate (the first and second mounting plates 2 and 3 in the first embodiment and the mounting plate 20 in the second embodiment; the same applies hereinafter) is pressed with a metal or other conductive material. A plate-like member having openings 9 and 12 (26) through which the motor rotating shaft 6 (23) is inserted in the center is formed by this pressing process in a shape corresponding to the motor casing 8 (25).

"Polishing process (Step 2)"
The bonding surfaces 2a and 3a (20a) having a ring shape (not limited to a circle but may be a rectangle) around the opening of the mounting plate created in the above process are processed into a polished surface by sand polishing or the like. The polished surface is polished to a surface roughness that can be distinguished from the unpolished surface of the plate.

"Adhesive application process (Step 3)"
An adhesive is applied to the adhesive surfaces 2a and 3a (20a) polished in the polishing step. This adhesive is applied to the adhesive surface with a brush or the like, or filled with a tube or the like.

"Elastomer attachment process (Step 4)"
The mounting plates 2 and 3 (20) to which the adhesive is applied in the above process are set in a mold and filled with an uncrosslinked elastomer. Then, adhesive layers 2b and 3b (20b) are formed on the adhesive surfaces 2a and 3a (20a), and an elastomer layer is formed in a ring shape thereon.

"Crosslinking process (Step 5)"
The elastomer layer formed into a ring shape in the above process is heated in a heating furnace for crosslinking. At this time, the adhesive layers 2b and 3b (20b) integrally bond the crosslinked elastomer layer and the mounting plates 2 and 3 (20).

"Conduction process (Step 6)"
In the above process, the conductive paint is applied in a bridge shape on at least a part of the surfaces of the mounting plates 2 and 3 (20) and the ring-shaped elastic member 4 (21) which are integrally bonded. As a result, the mounting plates 2 and 3 (20) and the ring-shaped elastic member 4 (21) are electrically connected by the conductive paint regardless of the presence of the adhesive layers 2b and 3b (20b) on the boundary surface. (22) is formed.

  In the first embodiment described above, the first mounting plate 2 and the second mounting plate 3 are manufactured in the above-described steps (Step 1 to Step 3), and between the first mounting plate 2 and the second mounting plate 3 The elastomer layer is formed in the above step (Step 4). And the mount A is manufactured at the said process (Step5-Step6).

  In the second embodiment described above, the mounting plate 20 is manufactured in the above steps (Step 1 to Step 3), and an elastomer layer is formed between the mounting plate 20 and the separately manufactured motor casing 25 in the above steps (Step 4). ). And the mount B is manufactured at the said process (Step5-Step6). At this time, it is preferable to apply the adhesive after polishing the adhesive surface 25a of the motor housing 25 in advance.

A mount (first embodiment)
B mount (second embodiment)
M Stepping motor 2 First attachment plate 2a Adhesive surface 2b Adhesive layer 3 Second attachment plate 3a Adhesive surface 3b Adhesive layer 4 Ring-shaped elastic member 4d Inner wall surface 5 Ground connection (conductive paint)
6 Rotating shaft 7 Transmission gear 8 Motor housing 9 Opening 10 Installation frame 11a Screw hole 11b Screw hole 12 Opening 13a Screw hole 13b Screw hole 15a Screw 15b Screw 16a Screw 16b Screw 20 Mounting plate 20a Adhesive surface 20b Adhesive layer 21 Ring shape Elastic member 21a Front surface 21b Back surface 21d Inner hole 22 Ground connection portion 23 Rotating shaft 24 Transmission gear 25 Motor housing 25a Adhesive surface 26 Opening 27a Screw hole 27b Screw hole 28a Connection screw 28b Connection screw

Claims (5)

A motor fixing mount for preventing vibration by interposing a ring-shaped elastic member having a predetermined thickness between the motor housing and the installation frame,
A mounting plate for fixing the motor to the installation frame;
A ring-shaped elastic member adhered to the mounting plate;
With
The mounting plate is made of a conductive material,
An opening through which the rotating shaft of the motor is inserted;
An adhesive surface polished into a ring around this opening,
Is provided,
The ring-shaped elastic member is configured in a ring shape that conforms to the adhesive surface with an elastic material having conductivity,
This mounting plate and ring-shaped elastic member
And fixed integrally with the adhesive applied to the adhesive surface,
The mounting plate and the ring-shaped elastic member are configured so that a conductive paint is applied in a bridge shape on at least a part of the surface of the mounting plate and is electrically connected to each other. The other surface of the ring-shaped elastic member fixed to the mounting plate is integrally fixed to the motor housing with an adhesive,
2. The motor fixing mount according to claim 1, wherein a conductive paint is applied in a bridge shape at least partially between the ring-shaped elastic member and the motor casing. A motor fixing mount for preventing vibration by interposing a ring-shaped elastic member having a predetermined thickness between the motor housing and the installation frame,
A pair of first and second mounting plates for mounting the motor to the installation frame;
A ring-shaped elastic member adhered between the first and second mounting plates;
With
Each of the first and second mounting plates and the ring-shaped elastic member is made of a material having predetermined conductivity,
Each of the first and second mounting plates has
An opening through which the rotating shaft of the motor is inserted;
An adhesive surface polished into a ring around this opening,
Is provided,
The ring-shaped elastic member is formed in a ring shape that conforms to the bonding surface,
The pair of first and second ring-shaped elastic members and the ring-shaped elastic member are:
And fixed integrally with the adhesive applied to the adhesive surface,
The first and second mounting plates and the ring-shaped elastic member are configured so that a conductive paint is applied in a bridge shape on at least a part of the surface thereof so that they are electrically connected to each other. Mount. The motor fixing mount according to claim 2, wherein the adhesive applied to the adhesive surface has a composition having a lower conductivity than the conductive paint. A method for manufacturing a motor fixing mount for vibration isolation by interposing a ring-shaped elastic member having a predetermined thickness between a motor housing and an installation frame,
A pressing process for manufacturing a pair of mounting plates having openings through which the rotation shaft of the motor is inserted;
A polishing step of forming a ring-shaped polishing surface around each of the opening on the pair of mounting plates;
An adhesive application step of applying an adhesive to the polished surface;
An elastomer attaching step of forming an uncrosslinked elastomer layer on the polished surface coated with the adhesive;
A crosslinking step of vulcanizing the elastomer layer to form a ring-shaped elastic member;
A conduction step of applying a conductive paint in a bridge shape to a part of the surface of the ring-shaped elastic member and the mounting plate;
A method for manufacturing a motor fixing mount.

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