JP2533112B2 - Lubricant application method and device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant application method and apparatus, and more particularly to a method and apparatus for applying grease to a required portion of a drum brake for lubrication in a drum brake assembly process.

[Conventional technology]

Conventionally, in the assembly process of the drum brake,
Although it is necessary to apply grease to a backing plate, a cylinder or the like where lubrication is required, grease is applied manually with a brush or lubricated with a grease pump.

[Problems to be solved by the invention]

However, the above-mentioned conventional methods have problems peculiar to each method.

That is, in the case of using a brush, there is a problem in that the coating state takes individual time and the coating operation takes time.

In addition, grease lubrication is suitable for automation, but since it is applied directly from the nozzle, the grease is likely to be in a so-called dango state, it is not possible to apply it evenly over a wide area, and stringing occurs and unnecessary There is a possibility that grease may be applied even to the part.

Further, in any of the methods, there is a problem that productivity is lacking because it is essential to work to even out the grease.

The present invention has been made in view of the above matters, and it is a technical object of the present invention to provide a brake lubricant applying method and device capable of quickly and uniformly applying a predetermined amount of lubricant to a lubrication necessary portion of a brake device. And

[Means for solving problems]

The present invention adopts the following methods in order to solve the above technical problems.

That is, the lubricant is supplied to the surfaces of the rotating bodies 1A, 1B, 1C and leveled on the surfaces of the rotating bodies 1A, 1B, 1C, and the oil supply intermediary bodies 4A, 4B, 4C are
By contacting the rotating body 1A, 1B, 1C with
Apply lubricant to A, 4B and 4C.

After that, the lubrication inclusions 4A, 4B, 4C are pressed against the objects 41, 42, 43 to be coated to apply the lubricant.

Further, an apparatus for carrying out the method has the following configuration.

That is, this device has the rotating bodies 1A, 1B, 1C, and also has the lubricant supplying device 3 for supplying the lubricant to the rotating bodies 1A, 1B, 1C, and further, the supplied lubricant. Rotating body 1A, 1
Equipped with a leveling device to level the surfaces of B and 1C. This leveling device can be formed by installing a spatula-shaped one, but if the lubricant supply device 3 is provided in close proximity so as to be in sliding contact with the surface of the rotating bodies 1A, 1B, 1C, the lubricant supply device 3 Can be used as

In addition, the lubrication interposition bodies 4A, 4B, 4C are arranged and supported in conformity with the large coated objects 41, 42, 43 in accordance with the required lubrication locations, and the supported lubrication interposition bodies 4A, 4B, 4C are rotatably attached to the rotating bodies 1A, 1B, 1C. After being brought into contact with the surface of No. 1, the lubricant applying device was equipped with a transfer device R that presses the parts 41, 42 and 43 to be lubricated.

The rotating body may have a disk shape, a cylindrical shape, or the like. Further, the rotating bodies 1A, 1B, 1C do not necessarily need to be constantly rotating, and are rotated when the lubricant is supplied,
It is preferable to intermittently drive the fuel supply intermediary bodies 4A, 4B, 4C so that they stop when they come into contact with each other.

[Action]

The lubricant supply device is operated while rotating the rotating bodies 1A, 1B, 1C to supply the lubricant to the surfaces of the rotating bodies 1A, 1B, 1C.
The supplied lubricant is leveled on the surfaces of the rotating bodies 1A, 1B, 1C, and applied to the surfaces of the rotating bodies 1A, 1B, 1C in a uniform thickness.

Subsequently, the lubrication intermediates 4A, 4B, 4C are brought into contact with the rotating bodies 1A, 1B, 1C to attach the lubrication points to the lubrication intermediates 4A, 4B, 4C. At that time, the amount of the adhered lubricant is always constant.
The reason is that the lubricant is applied to the surfaces of the rotating bodies 1A, 1B, 1C in a uniform thickness as described above.

After that, when the lubrication intermediates 4A, 4B, 4C are pressed against the lubrication required portions of the bodies 41, 42, 43 to be coated, the lubricant is applied to those portions. Further, since the amount of the lubricant adhered to the oil supply intermediary bodies 4A, 4B, 4C is constant, the application to the objects 41, 42, 43 is evenly applied.

If necessary, apply oil to the coated objects 41, 42, 43
When 4A, 4B and 4C are pressed, the lubrication inclusions 4A, 4B and 4C may be slid to widen the application range or even out the lubricant.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

In this embodiment, grease is applied to the drum brake device, and the required lubrication points are, as shown in FIG. 5, six points on the inner surface (ledge surface) of the backing plate 41 as the object to be coated, and this backing plate. Provided in 41,
Two locations on both sides of the brake shoe support portion 42 and two locations on the brake shoe support grooves 43a formed at the rod tips at both ends of the wheel cylinder 43. Ledge surface 6 of backing plate 41
The point is a surface on which the brake shoe abuts and slides. In addition, two positions on both sides of the brake shoe support portion 42 and the brake shoe support grooves 43a2 at the rod tips at both ends of the wheel cylinder 43.
The points are portions that respectively support both ends of the brake shoe.

Then, for the grease supply, the disc-shaped rotating body 1A as shown in FIG. 2, and the truncated cone-shaped rotating body 1B and the cylindrical rotating body 1C as shown in FIG. The one that is connected is prepared. Then, as shown in FIG. 1, the disk-shaped rotating body 1A is a motor through a gear G attached to a spindle S that rotatably supports the rotating body 1A.
It is rotationally driven by M1. The rotating bodies 1B and 1C are the rotating bodies 1C.
It is rotationally driven by a motor M2 via an endless belt B wound around.

A lubricant supply device 3 for supplying grease to the surfaces of the rotating bodies 1A, 1B, 1C is provided in close proximity to the surfaces of the rotating bodies 1A, 1B, 1C so as to slide. As shown in FIG. 4, each lubricant supply device 3 has a lubrication pressure inlet 3b on one side of the block-shaped main body 3a. Following the lubricant pressure inlet 3b, the block-shaped main body 3b. 3a is provided with a lubricant storage portion 3c that penetrates vertically, and further, on the lower surface of this block-shaped main body 3a, the lubricant storage portion 3c is continuously provided and is orthogonal to the rotation direction of the rotating bodies 1A, 1B, 1C. A lubricant expanding portion 3d is provided to spread the lubricant in the direction. Further, a float 3e is vertically inserted into the upper part of the lubricant reservoir 3c. The head 3f of the float 3e projects from the upper portion of the block-shaped main body 3a, and a proximity switch SW is arranged in the vicinity of the head 3f to detect the vertical position of the head 3f.

Then, when grease is press-fitted and supplied from the lubricant pressurizing port 3b by a lubricant pumping device (not shown), the press-fitted grease flows into the lubricant reservoir 3c, pushing up the float 3e,
It flows into the lubricant spreading portion 3d, is spread in the width direction of the rotating bodies 1A, 1B, 1C, and is supplied to the surfaces of the rotating bodies 1A, 1B, 1C. When the float 3e is pushed up and the head 3f approaches the proximity switch SW, this proximity switch SW is turned on, and the supply of grease by the lubricant pumping device is stopped. After that, the grease in the lubricant reservoir 3c is floated by the float 3e. With the weight of,
It is supplied to the surfaces of the rotating bodies 1A, 1B, 1C through the lubricant expanding portion 3d. When the grease in the lubricant storage portion 3c is reduced and the float 3e descends and the head 3f moves away from the proximity switch SW, the proximity switch SW is turned off and the lubricant pumping device operates to supply grease again. By the above grease supply control, the grease does not protrude from the lower surface of the block-shaped main body 3a of the lubricant supply device 3 and the rotating bodies 1A, 1B, 1C, and the proper amount is always supplied.

The lubricant supply device 3 has the block-shaped main body 3a.
The lower surface of the rotating body 1A, 1B, 1C is provided so as to be in close contact with the surface of the rotating body 1A, 1B, 1C, also serves as a leveling device for leveling the grease supplied to the surface of the rotating body 1A, 1B, 1C. The generated grease is rotated by the rotating bodies 1A, 1B, 1C, and the block-shaped body 3a
Abutting against the edge of the bottom surface of the
It is evenly applied to the surface of the product with a thickness of a few fractions of a millimeter.

On the other hand, as shown in FIG. 5, a backing plate lubrication intermediary body 4A, a brake shoe support portion lubrication intermediary body 4B, and a wheel cylinder lubrication intermediary body 4C are provided corresponding to the respective lubrication necessary locations. It is provided. These refueling inclusions 4
Each of A, 4B, and 4C is formed of an oil resistant rubber, and has a coating surface of a size corresponding to a location where lubrication is required. Since the lubrication required portion of the brake shoe support portion 42 is tapered, the application surface of the lubrication interposition resistant 4B for the brake shoe support portion is also tapered. The frusto-conical rotor 1B is prepared as described above in order to adhere grease to the oil supply intermediary body 4B having the tapered coating surface.

Each refueling inclusion 4A, 4B, 4C corresponds to the refueling required location,
The transfer device R is disposed and supported by the supports 5A, 5B, and 5C that form the transfer device R, respectively. As shown in FIGS. 1 and 6, the support 5A for supporting the oiling intermediary body 4A for the backing plate is provided with six branch support arms 7 radially around the circular substrate 6, and each support arm The supporting legs 8 are vertically provided at the distal ends of the supporting legs 8. The supporting legs 8 have a rod body 8b urged downward by a spring in a cylindrical leg body 8a so as to be vertically movable. A refueling intermediary body 4A is attached to the lower end of the leg rod 8b. The circular substrate 6 is pivotally supported on the base 10 by a shaft 9, and the shaft 9 projects onto the base 10.
An arm 11 orthogonal to the arm 11 is provided, and a rod tip of an air cylinder device 12 provided on the base 10 is pivotally supported on the tip of the arm 11.

Further, the support body 5B supporting the oil supply interposition body 4B for the brake shoe support portion and the support body 5C supporting the oil supply interposition body 4C for the wheel cylinder are as shown in FIG. 1, FIG. 7 and FIG. And are provided on the same substrate 17, respectively.

First, as shown in FIG. 6, the support 5B has the first chucks 14a, 14 which can be opened and closed by the air cylinder device X.
Oiling intermediary bodies 4B, 4B are provided on the inner surface of the tip of b so as to be opposed to and removable from each other. This air cylinder device X has two rods Xb projecting forward and backward at both ends of a cylinder portion Xa.
The first chucks 14a, 14b at the tip are opened and closed.

Next, as shown in FIG. 8, the support 5C is attached to the second chucks 15a, 15 which are opened and closed by the air cylinder device Y.
Refueling intermediary members 4C, 4C are supported oppositely and detachably on the inner surface of the tip of b.

This support 5C will be described in more detail. As shown in FIG. 7, a pair of slits 16a, 16b are inserted into the lower surface of the substrate 17 which is H-shaped to face the direction in which the slits 16a, 16b are inserted. A pair of opposed plates 18 and 18 are provided, and two guide rods 19 and 19 are provided between the opposed plates 18 and 18.
Two sliders 20a and 20b are slidably attached to the two guide rods 19 and 19, respectively, and further, one slider 20a and 20b are connected to each other and extend below the substrate 17. One of the second chucks 15a is provided. Further, one cylinder mounting portion 21a which is integrated with the one second chuck 15a and projects above the substrate 17 through the one slit 16a is provided.

Further, the other second chuck 15b facing the one second chuck 15a and the one cylinder mounting portion 21a, connecting the other sliders 20b, 20b to each other and extending below the substrate 17, Integrated with the other second chuck 15b,
The other cylinder mounting portion 21b that protrudes above the substrate 17 through the other slit 16b is provided.

The tip of the rod Ya of the air cylinder device Y is fixed to the one cylinder mounting portion 21a, and the cylinder portion Yb of the air cylinder device Y is attached to the other cylinder mounting portion 21b.
Is stuck. And when rod Ya advances, it is second
When the chucks 15a, 15b are opened and the rod Ya is retracted into the cylinder portion Yb, the second chucks 15a, 15b are closed.

By the way, guide rails 22 and 22 that constitute the transfer device R are installed across the upper side of the conveyor 21 that forms the assembly line of the brake device.
Two slide bases 23a and 23b are slidably attached to the units 2 and 22 and connected to each other. The slide bases 23a and 23b are connected to the slide cylinder device 24.
By this, the sliding is synchronized.

The support 5A is supported on one slide base 23a so as to be vertically movable, and the support 5B, 5C is supported on the other slide base 23b.
Is supported so that it can move up and down. That is, in each of the slide bases 23a and 23b, two sets of slide bearings 25 are provided at the upper and lower corners thereof, and a guide rail 26 extending vertically is provided on each slide bearing 25 so as to be vertically slidable. The pair of guide rails 26 are formed at the lower end of each of the pair of guide rails.
5A and the support bodies 5B and 5C are attached respectively, and the rod 28 of the air cylinder device 27 fixed to the slide bases 23a and 23b engages with the upper ends of the pair of guide rails 26, whereby the air cylinder By means of the device 27, the support 5A,
Also, the supports 5B and 5C can be moved up and down.

Then, a disk-shaped rotating body 1A is provided on one side of the conveyor 21.
Is arranged, and on the other side of the conveyor 21, a truncated cone-shaped rotating body 1B and a cylindrical rotating body connected by a rotating shaft 2 are arranged.
1C and are arranged. These rotating bodies 1A, 1B, 1C and support
Looking at the positional relationship with 5A, 5B, 5C, two slide bases 23
By sliding a and 23b, one support 5A is a disk-shaped rotating body 1
When located above A, the other support 5B, 5C is
21, the other support 5B, 5C is located above the conical and cylindrical rotating body 1B, 1C, one support 5A is located above the conveyor 21. There is.

 Hereinafter, an operation example will be described.

First, in the initial state, as shown in FIG.
5A is located above the rotating body 1A, and supports 5B and 5C are on the conveyor 2
It is assumed to be located above the backing plate 41 above 1. Then, the lubricant refueling device 3 is operated while the rotating bodies 1A, 1B, 1C are rotated to supply grease to the surfaces of the rotating bodies 1A, 1B, 1C. Then, due to the rotation of the rotating bodies 1A, 1B, 1C, the grease is leveled to a predetermined thickness to form a layer on the surface. Here, when the rotation of the rotary body 1A is stopped and the support body 5A is lowered by the air cylinder device 27, the respective oil supply intermediary bodies 4A at the tips of the six rods 8b land on the surface of the rotary body 1A. Grease adheres to the bottom surface of refueling interposition body 4A. At that time, since the amount of grease adhered on the surface of the rotating body 1A is leveled by the rotation of the rotating body 1A, the amount of grease to be applied is not limited to any of the oil supply intermediary bodies 4A
Is even in.

Then, after the support 5A is raised, the slide base 23a,
By sliding 23b, the support 5A is transferred above the backing plate 41 on the conveyor 21, and
The supports 5B and 5C are transferred above the rotating bodies 1B and 1C.

Then, the support 5A descends again and the backing plate
The six oil replenishment intermediary bodies 4A supported on the lower ends of the respective leg rods 8b are brought into contact with the six refueling necessary portions (ledge surfaces) on the 41. Thereby, the grease is applied to the ledge surface. At this time, since the circular substrate 6 is reciprocally rotated by the air cylinder device 12, the refueling intermediary body 4A reciprocally slides on the ledge surface, so that the refueling required area is wider and wider than the area of the refueling intermediary body 4A. Grease is evenly and evenly applied.

In synchronization with the operation of applying grease to the ledge surface, the support
5B and 5C also descend with the first chucks 14a and 14b and the second chucks 15a and 15b open, and when they descend, the first chucks 14a and 14b
Since the 14b and the second chucks 15a, 15b are closed by the air cylinder devices X, Y, the oil supply inclusions 4B, 4C come into contact with the surfaces of the respective rotating bodies 1B, 1C that are temporarily stopped, and the grease makes the oil supply inclusions. 4B,
Adhere to 4C.

After that, the first chucks 14a and 14b and the second chuck 15 are again
With a and 15b open, the supports 5B and 5C rise and the conveyor
21 is transferred above the backing plate 41 and then lowered again, and the first chucks 14a, 14b and the second chuck 15 are moved.
When a and 15b are closed, the refueling intermediary bodies 4B and 4C come into contact with the brake shoe support portion 42 and the brake shoe support groove 43a provided at the rod tip of the wheel cylinder 43, and grease is applied.

When the grease coating work is completed, the first chucks 14a, 14
b. If the supports 5B, 5C are raised with the second chucks 15a, 15b open, the initial state is restored. At the same time, the backing plate 41 is conveyed to the next assembly step by the conveyor 21, and the backing plate 41 not coated with grease is conveyed to below the support 5B.

By repeating these steps, the grease application work is sequentially performed.

In the above, the grease application area is the lubrication inclusions 4A, 4B,
It can be set arbitrarily by the area of the coating surface of 4C or its sliding, and the coating shape is also arbitrary. Further, although the number of places where the drum brake device needs to be refueled is usually about 10, it is possible to uniformly apply grease to these positions all at once, so that the time required for the refueling process can be shortened.

Although the oil supply inclusions 4A, 4B, and 4C are formed of oil-resistant rubber, they may be formed of porous foamable plastic or the like that can retain lubricating oil.

Further, the transfer device R is not limited to the one in the above-mentioned embodiment, and although not shown, an industrial robot arm is provided with and supports a refueling interposition body, and the refueling interposition body is brought into contact with the surface of the rotating body by so-called NC control. After that, it may be pressed against a portion of the body to be coated that needs lubrication.

Further, in the above-described embodiment, the method and device for supplying oil to the drum brake device have been described, but the present invention is not limited to this example, and it is needless to say that the present invention can be applied to oil supply for gearboxes and other mechanical devices.

〔The invention's effect〕

According to the present invention, the lubricant is supplied to the surface of the rotating body, the lubrication interposition body is brought into contact with the rotational body, and the lubricant is adhered to the refueling interposition body. Since the lubricant is applied by pressing against, the lubricant can be applied uniformly and quickly.

In particular, when applying grease, unlike application by using a grease pump or a brush, a suitable amount of grease can be applied uniformly without causing stringing or applying more grease than necessary.

Further, since the work of uniformly leveling the lubricant can be omitted, the productivity can be improved.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view showing an embodiment of the device of the present invention.
FIG. 2 is a perspective view of a disk-shaped rotary body portion used for implementing the present invention, FIG. 3 is a perspective view of a conical rotary body portion and a cylindrical rotary body portion, and FIG. 4 is a cross section showing an example of a lubricant supply device. Figure, fifth
The figure is a perspective view showing the correspondence between the oil-filled interposition body and the body to be coated,
FIG. 6 is a plan view showing the support, FIG. 7 is a bottom view showing another support, and FIG. 8 is a vertical side view thereof. 1A, 1B, 1C …… Rotating body, 3 …… Lubricant lubrication device (also serving as leveling device), 4A, 4B, 4C …… Lubrication intermediary body, 41,42,43 …… Applied body, R …… Transfer device.

Claims (2)

(57) [Claims] 1. A lubricant is supplied to the surface of a rotating body and leveled, and a refueling interposition body is brought into contact with the revolving body to adhere the lubricant to the refueling interposition body. A method of applying a lubricant, which comprises applying a lubricant by pressing it against an application body. 2. A rotary body, a lubricant supply device for supplying a lubricant to the surface of the rotary body, a leveling device for leveling the supplied lubricant on the surface of the rotary body, and an oil supply interposition body. And a transfer device for disposing and supporting it according to the lubrication required portion of the application body and for pressing the supported lubrication interposition body against the surface of the rotating body and thereafter pressing it against the lubrication required location of the object to be coated. Lubricant application device.