JP2574376Y2 - Painting equipment in vehicle suspension tower - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus for coating an inner surface of a suspension tower of a vehicle having a tubular shape having an open lower end.

[0002]

2. Description of the Related Art Conventionally, when painting the inner surface of a suspension tower of a vehicle to be tact-transported, a painting gun is inserted from the lower end opening side of the suspension tower, and the painting gun is rotated and moved up and down. (See, for example, Japanese Utility Model Laid-Open Publication No. 3-83655).

[0003] In this case, the entire inner surface of the suspension tower is not painted, and the upper end portion of the suspension tower is required to be unpainted because it is necessary to fasten and fix the suspension device. For this reason, it is customary to provide a masking member on the upper side of the coating gun and perform the parting-off by the masking member.

[0004] Usually, the masking member and the coating gun are mounted on a rotary shaft member which can be inserted into and removed from the lower side of the suspension tower, but in an actual coating operation, the masking member is in a parting position. Because of the necessity of the setting, the upper end of the suspension tower is brought into contact with the suspension tower to be in a non-rotating state, whereas the painting gun is rotated to necessitate painting the peripheral surface of the suspension tower. Therefore, when the masking member and the coating gun are attached to the rotating shaft member, the masking member is relatively rotatable with respect to the rotating shaft member, and the coating gun is fixedly attached to the rotating shaft member. I have. Furthermore, since the suspension tower has a relatively long cylindrical shape in the vertical direction, when coating the inner surface with a coating gun, the position of the coating gun is sequentially lowered by a predetermined dimension,
It is customary to perform the coating by rotating the coating gun at each coating position.

[0005]

However, in the case where the coating is performed while using the masking member as parting as described above, the masking member is naturally located within the spraying range of the paint. The paint adheres to the masking surface formed on the lower surface side, and if the amount of the paint is large, the paint falls down and stains the coating apparatus or its surroundings, which is not preferable. Further, as in the above-mentioned known example, in the conventional coating apparatus, the relative position in the vertical direction between the masking member and the coating gun is fixedly set to a position where a predetermined parting is possible. Although the parting by the masking member is necessary only at the uppermost coating position and is not necessary at the lower coating position, the parting action by the masking member is continuously performed. The amount of paint adhered to the masking surface of the masking member was increased, and the inconvenience due to dropping of the adhered paint as described above was promoted.

In order to prevent inconvenience due to dripping of paint adhered to the masking surface of the masking member, conventionally, when the amount of paint adhered reaches a certain level, the masking member is removed from the suspension tower and an operator uses a spatula. Although the adhered paint was manually removed, the work was difficult due to the high viscosity of the paint, and when viewed as a whole painting work, this was one of the causes of a decrease in workability. I was

Further, as described above, if masking is performed even when masking is not originally required, there is a problem that the cost is increased as the yield of paint is reduced.

Accordingly, the present invention makes it possible to easily and surely remove the paint adhered to the masking surface of the masking member, and to make it possible to use the masking member only in a state where masking is required. It was made for the purpose of.

[0009]

According to the present invention, as a specific means for solving such a problem, a masking member and a coating gun are inserted into a suspension tower of a vehicle body from below, and the suspension is rotated while rotating the coating gun. In a coating apparatus for a suspension tower of a vehicle, in which the inside of a tower is painted and a coating part is parted by the masking member, the suspension can be moved up and down along an axial direction of the suspension tower by an appropriate lifting mechanism, and the driving is performed by rotation. With a rotating shaft member that can be selectively rotated in both forward and reverse directions by a mechanism,
The masking member is attached to the tip side of the rotary shaft member via a one-way clutch, and is movable in the axial direction of the rotary shaft member and is always urged in a direction away from the coating gun. the spray gun downward position than the masking member attaching position of the rotary shaft member is attached directly, by vertical movement of the rotating shaft member and the spray gun and the masking member, located above the suspension tower Between the painting work position to be performed and the non-painting work position located below the lower end of the suspension tower, and the side of the rotary shaft member is located at the non-painting work position. A paint removing mechanism having a spatula member capable of contacting a masking surface on a lower surface side of the masking member is provided.

[0010]

According to the present invention, the following effects can be obtained by adopting such a configuration. That is, the rotating shaft member is raised to insert the masking member and the coating gun into the suspension tower, and the masking member is brought into contact with the upper end portion of the suspension tower and fixed at a predetermined position (i.e., the masking member and the coating member). The gun is set to the painting position). In this state, the rotating shaft member is rotated in a predetermined direction. Then, the masking member is kept fixed by the one-way clutch irrespective of the rotation of the rotary shaft member, while the coating gun rotates integrally with the rotary shaft member. Therefore, by spraying the paint from the paint gun, the inner surface of the suspension tower is coated, and the upper portion of the paint spray is masked by the masking member. The upper end of the suspension tower is kept unpainted. This completes the first-stage painting operation.

When the first-stage coating operation is completed, the rotating shaft member is lowered by a predetermined amount, and the coating gun is rotated again to execute the second-stage coating. As described above, the coating operation is sequentially performed while lowering the position of the coating gun by a predetermined amount, so that the inner surface of the vertically long cylindrical suspension tower can be easily coated. During the second and subsequent coatings, the masking member is in a free state because the masking member is separated from the upper end of the suspension tower.

Here, the paint adheres to the masking surface of the masking member. If the amount of the paint exceeds a certain amount, the paint will fall off. Therefore, it is necessary to remove the paint before that. In this case, the rotating shaft member is lowered to set the masking member and the coating gun from the painting work position to the non-painting work position. In this non-painting operation position, the spatula member of the paint removing mechanism is brought into contact with the masking surface of the masking member. Therefore, when the rotating shaft member is rotated in the opposite direction to the above operation, the one-way clutch operates to integrate the rotating shaft member and the masking member in the rotation direction, and the masking member rotates. Driven.
Then, the paint adhering to the masking surface of the masking member is forcibly scraped off by the spatula member,
It is collected at a predetermined paint receiving side.

Further, in this case, the masking member is movable in the axial direction with respect to the rotary shaft member and is constantly urged in a direction away from the coating gun.
At the time of the first coating operation, the masking member is pressed against the upper end of the suspension tower by the lifting force of the rotating shaft member to secure an appropriate masking amount in a state where the distance between the coating gun and the coating gun is appropriately reduced. During the painting operation at the second stage, the masking member moves away from the painting gun by being separated from the upper end of the suspension tower and releasing the regulating force from the suspension tower side. Accordingly, in this state, the masking member is retracted upward from the range of the paint spray of the coating gun, and thereafter, the spray paint from the coating gun does not adhere to the masking member, and the masking surface of the masking member does not thereafter. Is limited to the paint adhered during the first-stage painting operation, and the total amount of the paint adhered is reduced as compared with the paint that performs the masking action even in the second-stage transfer.

[0014]

According to the present invention, the paint adhered to the masking surface of the masking member is mechanically scraped off by hand without manual operation. This makes it possible to easily and surely scrape off the paint, prevent contamination of the apparatus due to dropping of the paint adhered, and improve the work efficiency by speeding up the paint scraping work.

Further, in this case, the masking action is performed by the masking member only under the working conditions that require the masking, and the masking member is not actuated in any other state, so that the amount of paint adhered to the masking member can be reduced. Because of this, the scraping operation of the paint by the spatula member can be further facilitated, and the yield of the paint can be improved, which can contribute to cost reduction.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a suspension tower coating apparatus for a vehicle according to the present invention;
4 and 5 show a coating apparatus Z according to an embodiment of the present invention.
It is shown. The coating device Z is a suitable transport device.
A paint gun is inserted from the lower end opening side of the suspension tower 61 into the inner surface of the suspension tower 61 of the vehicle body 60 which is sequentially tact-transferred in a suspended state by a suspension (not shown). The entire area of the inner surface is not the surface to be coated, but only the portion excluding the upper end portion of the peripheral wall 61a and the ceiling surface 61b is the surface to be coated. It is necessary to provide a masking member to be carried out, and since the masking member is provided, it is necessary to provide a means for removing the paint adhered to the masking member. In order to satisfy the above, a specific configuration as described below is provided. Hereinafter, a specific configuration of the coating apparatus Z and its operation and effect will be described in detail.

First, the overall structure of the coating apparatus Z will be described with reference to FIGS. 4 and 5. The coating apparatus Z includes a masking member 20 described later provided at the tip end of a rotating shaft member 5 described later. The coating operation is performed by the coating gun 25 and the positioning mechanism 6. The base 1 fixed on the work floor serves as an auxiliary mechanism for positioning these members at predetermined positions and performing the coating operation accurately. Body 6 against
The support shaft 46 is mounted so as to be movable in the front-rear direction (arrow AB direction) and is disposed in parallel with this movement direction.
A support mechanism 2 rotatable around the support mechanism 2, and supported by the support mechanism 2 via a support shaft 45, and rotatable about the support shaft 45 in the vehicle front-rear direction (the direction of arrow CD). A rotation mechanism for moving the rotary shaft member 5 in the vertical direction (in the direction of arrows GH) along the lifting mechanism 3 and a guide member 3a provided on the side surface of the lifting mechanism 3 and for selectively rotating the rotary shaft member 5 in both forward and reverse directions; And a drive mechanism 4.

The structures of the support mechanism 2, the elevating mechanism 3, and the rotary drive mechanism 4 are known (for example, see JP-A-3-2583).
65, the description here is omitted,
Here, only the rotating shaft member 5 and the like will be described in detail. In FIGS. 4 and 5, the state shown by the solid line in which the rotary shaft member 5 is located below is the non-painting operation position in the claims for utility model registration, and the rotary shaft member 5 is raised and The state shown by the dashed line that has entered the interior of the suspension tower 61 corresponds to the position at the time of the painting operation in the claims for utility model registration.

As shown in FIGS. 4 and 5, the rotary shaft member 5 is attached to the rotary drive mechanism 4 and is driven to rotate in both forward and reverse directions (directions indicated by arrows JK).
And the first shaft member 51 composed of a tightly wound coil spring.
A flexible shaft member 53 having an appropriate flexibility coaxially connected to the upper end of the second shaft member, a second shaft member 52 coaxially connected to the upper end of the flexible shaft member 53, and the second shaft member A pair of left and right tip shaft members 54, 54, which are connected in parallel at a predetermined interval to the upper end of the shaft 52 and are provided at the upper end thereof with a mounting flange 55 (see FIG. 3).
Is rotationally driven by the rotational drive mechanism 4 and
The lifting mechanism 3 is driven to move up and down in the vertical direction.

The tip shaft member 54 of the rotary shaft member 5,
As shown in FIG. 1A, the paint gun 25 is positioned below the mounting flange 55 by a predetermined dimension.
Are attached with the paint spray direction directed obliquely upward. A positioning mechanism 6 and a masking member 20, which will be described later, are mounted on the mounting flange 55.

As shown in FIG. 1A, the positioning mechanism 6
A truncated cone-shaped positioning head 7 is fitted into a through-hole 62 (see FIG. 1B) formed on a ceiling surface 61b of the suspension tower 61 from below to position the rotary shaft member 5 with respect to the suspension tower 61. I have. The positioning head 7 is connected to a connecting shaft 11 via a plate 8 serving as a contact surface of the suspension tower 61 with the ceiling surface 61b and a plate 9 for adjusting a parting position.
And the fixing bolts 12 are integrally connected to the head receiving member 10.

The head receiving member 10 is connected to clamping members 14 and 15 via a one-way clutch 13 and has three guide shafts 16 and 16, 16 (see FIG. 3) are fixed in a state of protruding downward. Furthermore, each guide shaft 1
A movable plate 18 is attached to each of the guide shafts 16, 16, 16 so as to be movable in the axial direction of the guide shaft 16 with a spring 17 interposed therebetween. The movable plate 18 is fastened and fixed to a mounting flange 55 provided on the upper ends of the tip shaft members 54 by connecting bolts 19.

Further, a masking member 20 having a masking surface 20a constituted by a circular bottom annular groove is provided on the lower surface side of the head receiving member 10 with a plurality of fixed members with the masking surface 20a directed downward. Are integrally fixed by screws 21, 21,...

With this configuration, the following operation can be performed. That is, first, the rotating shaft member 5 (that is, the tip shaft member 54) is
In the non-operation direction (for example, the direction of arrow J), the positioning mechanism 6 can maintain the non-rotation state despite the rotation of the rotary shaft member 5 (in other words, the positioning Even when the rotation of the mechanism 6 is blocked by an external action, the rotating shaft member 5 can freely rotate in the direction of the arrow J). With such an operation mode, as shown by a solid line in FIG. 1B, the coating gun 25 is rotated together with the rotating shaft member 5 in a state where the positioning mechanism 6 is brought into contact with the suspension tower 61 and the rotation thereof is stopped. Thus, a predetermined painting operation can be performed on the entire circumference of the peripheral wall 61a of the suspension tower 61.

Second, when the rotary shaft member 5 rotates in the direction of arrow K, the one-way clutch 13 is activated, so that the positioning mechanism 6 integrated with the rotary shaft member 5 also moves in the direction of arrow K. It will rotate in the direction. According to such an operation mode, it is possible to rotate the masking member 20 and scrape off the paint adhered to the masking surface 20a of the masking member 20 by the paint removing mechanism 30 described later.

Third, since the positioning head 7 and the movable plate 18 are elastically supported via a spring 17, for example, the rotation shaft member 5 is controlled in a state where the positioning head 7 is prevented from moving upward. Is moved in the vertical direction, so that the vertical distance between the masking member 20 and the coating gun 25 changes. According to such an operation mode, as shown by a solid line in FIG. 1B, the rotary shaft member 5 is raised to move the positioning head 7 of the positioning mechanism 6 to the through hole 6 of the suspension tower 61.
2, the spring 17 is contracted and deformed, and the masking member 20 and the coating gun 25 are brought closer to each other so that the masking member 20 is positioned within the coating spray range of the coating gun 25 (vertical angle α). In the state where the required masking action is performed by the masking member 20, the coating (first-stage coating) is performed by the coating gun 25 to give a predetermined parting-off, and as shown by a chain line in FIG. The positioning head 7 is separated from the suspension tower ceiling surface 61b by lowering the member 5 and the masking member 20 is separated from the coating gun 25 by the spring force of the spring 17 to spray the masking member 20 with the coating gun 25. It is possible to perform the predetermined coating (coating of the second and subsequent stages) in a state where it is positioned above the range It is.

In this manner, the inner surface of the suspension tower 61 is coated, but in this case, only at the time of the first coating as in this embodiment.
The masking member 20 is actuated (i.e., only when a masking action is actually required), and the masking member 20 is retracted out of the paint spray range of the coating gun 25 when no other masking action is required. Then, for example, as compared with a case where the positional relationship between the masking member 20 and the coating gun 25 is fixed and the masking member 20 is always in operation during the painting operation as in the related art, the masking surface 20a of the masking member 20 is The amount of paint applied will be reduced. This means that the paint scraping operation by the paint removing mechanism 30, which will be described later, can be performed easily and surely by the amount of the attached paint, and the cost reduction can be promoted by improving the yield of the paint situation. It is.

However, even if the amount of paint applied to the masking member 20 itself is reduced as compared with the prior art, some of the paint will be attached by the first-stage coating, so that it is left forever. In addition, problems such as dropping of the paint may occur, and it is necessary to remove the paint at an appropriate time. For this reason, in this embodiment, it is possible to mechanically perform this by providing a paint removing mechanism 30 described later. Hereinafter, the configuration and operation and effect of the paint removing mechanism 30 will be described in detail.

As shown in FIGS. 1A and 2, the paint removing mechanism 30 is disposed above the elevating mechanism 3 so as to correspond to the masking member 20 positioned at the non-painting operation position. And a fitting positioning member 32 having a fitting hole 32a formed so as to be fitted on the outer periphery of the masking member 20 with a small gap. The fitting positioning member 32 is fixed in a mounted state on a plate 31 attached to a support arm 34 extending from the lifting mechanism 3 via stays 33, 33. In order to perform vertical positioning in a state where the masking member 20 is fitted in the fitting positioning member 32, a stopper 3 is provided on the plate 31.
5,35 are arranged. Therefore, the masking member 2
When 0 is set to return from the painting operation position to the non-painting operation position, the masking member 20 is accurately positioned in two directions, the horizontal direction and the vertical direction.

On the other hand, an air motor 36 is attached to the stay 33 via a stay 43, and a tip 37 a of a rotary shaft 36 a of the air motor 36 is formed in a sectional shape of the masking surface 20 a of the masking member 20. It is formed into a shape almost matching, and this is scraped off.
The spatula member 37 made of a hard material described above is attached in a state where its plane direction is substantially orthogonal to the axial direction of the masking member 20. Then, the spatula member 37 is configured as shown in FIG.
2A, the scraping portion 38 extends toward the fitting positioning member 32 as shown by a solid line in FIG.
0 in the masking surface 20a, and the fitting positioning member 3 as shown by a dashed line in FIG.
2 is selectively set to a second position extending in the opposite direction. In particular, at the first position, the scraping portion 38 of the spatula member 37 comes into contact with the masking surface 20a of the masking member 20 with a predetermined urging force.

Further, a plate 40 is disposed parallel to the stay 33 at a position appropriately separated rearward from the stay 33 and at a position overlapping with the rotation locus of the spatula member 37. When the spatula member 37 rotates from the first position to the second position, the plate 40 holds the scraping portion 38 of the spatula member 37 from both sides thereof with a predetermined elastic force. In this manner, a pair of left and right elastic spatula members 41, 41 are arranged. In addition, a paint receiving container is located below the elastic spatula members 41, 41.
(Not shown) is provided.

The paint removing mechanism 30 constructed as described above
According to the method, the paint is removed and collected as follows. That is, when the painting work on the suspension tower 61 is completed, the masking member 20 is left unpainted from the painting work position with a large amount of paint adhered to the masking surface 20a as the rotating shaft member 5 descends. It is set to return to the working position. The rotation of the rotating shaft member 5 is stopped when the painting operation is completed.

When the masking member 20 is set at the non-painting operation position, the paint removing mechanism 30 is operated to move the spatula member 37 from the second position to the first position, thereby moving the spatula member 37. Masking surface 2 of masking member 20
0a. In this state, the rotary shaft member 5
Rotates in the direction (arrow K direction) opposite to the direction of rotation (arrow J) during the coating operation so far. Then, the one-way clutch 13 is engaged, and the positioning mechanism 6
At the same time, the masking member 20 rotates integrally with the rotating shaft member 5 in the direction of arrow K, and the paint adhered to the masking surface 20a of the masking member 20 is sequentially scraped off by the scraping portion 38 of the spatula member 37, and the spatula member It is delivered to 37 side.

When the scraping of the paint on the masking member 20 by the scraping portion 38 of the spatula member 37 is completed,
Next, the air motor 36 is used to rotate the spatula member 37 from the first position to the second position. Then, during the rotation of the spatula member 37, the elastic spatula member 4
When passing through the space between the spatula members 1 and 41, the paint adhered to the spatula member 37 is scraped off by the elastic spatula members 41 and 41, and is dropped and collected to the lower paint receiving container side.

As described above, when the paint adhered to the masking surface 20a of the masking member 20 is mechanically scraped off by the spatula member 37 using the rotational force of the rotating shaft member 5, for example, the amount However, even if the amount of paint is high and the viscosity of the paint is high, it can be scraped off reliably and easily, and the workability is lower than in the conventional case where the worker manually does this. It becomes better and costs can be reduced accordingly.

Also, as in this embodiment, the masking member 20 is operated only during the first-stage coating operation to reduce the amount of paint adhering to the masking member 20 itself. The above effect becomes even more remarkable when combined with a configuration for mechanically scraping off with 37.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional view of a main part of a coating apparatus in a suspension tower of a vehicle according to an embodiment of the present invention.

FIG. 1B is a state change diagram of FIG. 1A.

FIG. 2 is a sectional view taken along the line II-II in FIG. 1A.

FIG. 3 is a view taken along arrow III-III of FIG. 1A.

FIG. 4 is an overall view of a suspension tower coating apparatus for a vehicle according to an embodiment of the present invention.

FIG. 5 is a view taken in the direction of arrows VV in FIG. 4;

[Explanation of symbols]

1 is a base, 2 is a support mechanism, 3 is an elevating mechanism, 4 is a rotary drive mechanism, 5 is a rotating shaft member, 6 is a positioning mechanism, 7 is a positioning head, 8 is a plate, 9 is a plate, and 10 is a head receiving member. , 11 is a connecting shaft, 12 is a fixing bolt, 13 is a one-way clutch, 14 and 15 are clamping members, 16 is a guide shaft, 17 is a spring, 18 is a movable plate, 19 is a connecting bolt, 20 is a masking member, and 21 is a masking member. Fixing screws,
25 is a paint gun, 30 is a paint removing mechanism, 31 is a plate, 32 is a fitting positioning member, 33 is a stay, 34 is a support arm, 35 is a stopper, 36 is an air motor, 37
Is a spatula member, 38 is a scraping portion, 40 is a plate,
1 is an elastic spatula member, 45 and 46 are support shafts, 47 is a slider, 51 is a first shaft member, 52 is a second shaft member, 53 is a flexible shaft member, 54 is a tip shaft member, 55 is a mounting flange, 6
0 is a vehicle body, 61 is a suspension tower, and 62 is a through hole.

Claims (1)

(57) [Scope of request for utility model registration] 1. A masking member and a coating gun are inserted into a suspension tower of a vehicle body from a lower side thereof, and the inside of the suspension tower is coated while rotating the coating gun. was a suspension tower within the coating apparatus of a vehicle, Bei rotation shaft member by a suitable lifting mechanism is rotated selectively in forward and reverse directions by the suspension tower in the axial direction of the movable up and down and rotary drive mechanism
In addition, the masking member is provided at the tip side of the rotating shaft member via a one-way clutch , and in the axial direction of the rotating shaft member.
It is movable and always attached in the direction away from the coating gun.
While mounted in energized state, vignetting with the downward position than the masking member attaching position of the rotary shaft member taken directly above the spray gun is, as the masking member by the lifting operation of the rotary shaft member paint cancer and is movable between a non-coating operation at a position located below the lower end of the painting operation for position and said suspension tower positioned within the suspension tower
Is, further on the side of the rotation shaft member, characterized in that a paint dropping mechanism with a lower surface side spatula member that is contactable to the masking surface of the masking member in a non-painting operations for position Vehicle suspension tower coating equipment.