JPH0713954Y2 - Lubricant recovery device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating oil recovery device, and more particularly to a lubricating oil recovery device adapted to remove foreign matter such as chips.

2. Description of the Related Art Conventional technology and its problems In various automatic processing machines and assembling devices, lubricating oil is supplied to the sliding parts, processing parts, etc., so that smooth operation and processing are performed. Then, the supplied lubricating oil is normally designed to flow into an upwardly opened container provided below it and be collected, but foreign matter such as chips generated by cutting or the like is contained in the container. There are problems that the discharge hole provided at the lower end of the container for discharging the lubricating oil that has entered the container and collected in the container is clogged, and that the pump for pumping the lubricating oil is clogged.

In addition, in a slide member that can be raised and lowered in the vertical direction, in order to prevent foreign matter such as chips from colliding with or adhering to the sliding portion of the slide member, a plurality of cross-sectional dimensions differ stepwise. Normally, a bellows that has a tubular body and is expanded and contracted is attached to the slide member, but even in that case, in order to collect the lubricating oil supplied to the sliding portion of the slide member, the bellows In some cases, foreign matter entered the container provided at the lower end.

The present invention has been made in view of the above circumstances, and an object thereof is to separate the lubricating oil and the foreign matter so that the foreign matter does not enter the container.

Means for Solving the Problems In order to achieve the above object, the present invention provides a lubricating oil recovery apparatus for collecting lubricating oil by allowing it to flow into a container opening upward, and (a) the lubricating oil in the container. Of the container, and is inclined downward as it goes toward the side wall of the container whose height is lowered, and its lower end is located above the side wall. A slanting plate for dropping foreign matter mixed in oil from its tip to remove it from the container; and (b) a slanting plate integrally provided at the tip of the slanting plate so that the tip is located in the container. And a return plate that is inclined in a direction opposite to the inclination direction of the inclined plate and that causes the lubricating oil that has flowed to the tip of the inclined plate to flow down the inside of the container by being transmitted through the lower surface.

Further, when collecting the lubricating oil supplied to the sliding portion of the slide member which is vertically moved up and down, it has a plurality of cylindrical bodies having stepwise different cross-sectional dimensions and is attached to the slide member. When a bellows is provided that is expanded and contracted as the slide member moves up and down and prevents foreign matter from entering the sliding portion of the slide member, the container is configured so as to form part of the bellows. It is desirable that the plurality of tubular bodies be provided so as to be engageable with the tubular body positioned at the lowermost end when extended.

Action and Effect of Invention In such a lubricating oil recovery device, the lubricating oil and the foreign matter are first made to flow down or fall on the inclined plate, and flow or roll down on the inclined plate toward the tip side. The tip of the sloping plate is located above the side wall of the container, and the foreign matter that has flowed or rolled on the sloping plate falls from the tip of the sloping plate and is removed outside the container, while the lubricating oil is the tip of the sloping plate. It is made to flow down the inside of the container along the lower surface of the return plate provided on the. As a result, only the lubricating oil is collected in the container and foreign matter is prevented from entering the container.

Further, when recovering the lubricating oil supplied to the sliding portion of the slide member that is vertically moved up and down, a part of the bellows is configured to prevent foreign matter from entering the sliding portion of the slide member. When the container is provided as described above, it becomes unnecessary to position the container with respect to the bellows,
Its handling and assembly work become easy.

The inclination angle of the inclined plate and the return plate is such that both the lubricating oil and the foreign matter flow or roll down on the inclined plate toward the tip side thereof, and the foreign matter falls from the tip of the inclined plate,
The lubricating oil is determined in consideration of the viscosity of the lubricating oil and the easiness of rolling of foreign matters so that the lubricating oil flows down along the return plate without directly flowing down from the tip of the inclined plate.

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

FIG. 1 is a plan view showing a slide member 10 used in an automatic processing machine such as a lathe. The slide member 10 is vertically driven while being guided by a rectangular rail body 12 which is moved in a substantially horizontal direction. It is supposed to be done. The square rail main body 12 is arranged in the up-down direction and is provided with a pair of square rails 14 at both ends of its front portion. The square rail 14 can be slid on the slide member 10. A pair of back plates 16 are fixed so as to sandwich them. Lubricating oil is supplied to the sliding portions between the slide members 10 and the square rails 14 so that the slide members 10 can be smoothly and stably moved up and down.

The slide member 10 is made of the steel shown in FIGS. 2 to 5 in order to prevent foreign matter such as chips from colliding or adhering to the sliding portion with the square rail 14. Made of bellows 18 is attached. 2 to 5
The drawings are a front view, a partially cut-away rear view, a vertical cross-sectional view, and a VV cross-sectional view in FIG. 2, respectively. Five cylinders 20a, 20b, 20c, 20d, and 20e having an opening in the center (hereinafter, simply referred to as cylinder 20 unless otherwise specified) and a square provided inside the cylinder 20 And a container 40 having a shape.
The cylinders 20a, 20b, 20c, 20d, 20e, and the container 40 are gradually reduced in size in the transverse cross-sectional shape, and when the uppermost cylinder 20a is lowered, The cylindrical body 20e is sequentially stacked on the outer peripheral side of the container 40.

Further, at the lower end of each tubular body 20, an engaging plate 26 that is engaged with the tubular bodies 20b, 20c, 20d, 20e and the plate 24 fixedly provided at the upper end of the container 40 is provided. As the body 20a is raised, the body 20a is sequentially pulled upward from the outer peripheral side. As is apparent from FIG. 4, the engagement plate 26 is provided at the lower end portion of the inner surface of the front plate of the tubular body 20, but separately from this, it is also provided at the lower end portions of the inner surfaces of the left and right side plates and engages with the plate 24. It is designed to be combined. As is apparent from FIG. 5, the plate 24 has a U-shape, and is fixed to the upper ends of the cylindrical body 20, the front plate and both side plates of the container 40.

The bellows 18 is attached to the slide member 10 via a pair of attachment plates 28 provided at both upper ends of the uppermost tubular body 20a, and is expanded and contracted as the slide member 10 is moved up and down. It should be noted that, as shown in FIGS. 2 to 4, the slide member 10 is arranged such that each cylinder 20 is superposed on the outer peripheral side of the container 40 and the rising end position where each cylinder 20 is substantially completely extended. It is allowed to move up and down between a lower end position (not shown) where it can be expanded and contracted substantially completely.

On the other hand, on the lower surface of the rectangular rail body 12, the bellows
A guide bracket 30 is fixedly provided to guide 18 so that it can be expanded and contracted in the vertical direction. The guide bracket 30 is the sixth
As is apparent from the perspective view of the figure, it is fixed to the rectangular rail main body 12 via four mounting portions 32 provided at the upper end thereof, and is substantially the same as the rear opening of the tubular body 20. A tubular portion 34 having a U-shaped cross section having a width dimension is provided. This tube
The opening side of 34 is inserted into the inside of the cylindrical body 20 through the opening, and a pair of guide plates 36 are provided at the opening end.
Is fixed in the vertical direction and is engaged with the engaging piece 38 fixed to the plate 24 of the tubular body 20 to thereby form the tubular body.
It is designed to guide 20 up and down. Two of the four mounting portions 32 are formed by bending the upper end of the guide plate 36.

Further, the container 40 provided inside the bellows 18 is for recovering the lubricating oil supplied to the sliding portion between the slide member 10 and the square rail 14, and is in the state of being opened upwards. It is fixed to the lower end of the guide bracket 30. That is, the lower end of the guide bracket 30 is inserted into the opening of the container 40, and their rear side walls are integrally fixed to each other. Then, the portion where the lubricating oil flows down,
That is, a pair of oil receiving plates 42 is provided between the left and right side walls of the container 40 and the left and right side walls of the tubular portion 34.

As is clear from FIG. 7, the oil receiving plate 42 has a main body portion 44 that is inclined downward at an angle of about 45 ° toward the rear, and a tip end of the main body portion 44 extends downward to the opposite side.
The main body 44 is located near the upper end of the rear side wall of the container 40. The rear side wall of the container 40 is lower than the other side walls, and the upper end edge 48 of the container 40 is slightly bent inward so as to be close to the bent portion 46. The gap between the upper edge 48 and the bent portion 46 allows the lubricating oil to flow down along the lower surface of the bent portion 46, but has a size that does not allow foreign matter such as chips to enter.

Further, the oil receiving plate 42 has a width dimension substantially equal to the dimension between the side wall of the container 40 and the side wall of the tubular portion 34, is fixed to the side wall of the container 40 by welding or the like, and has a tubular shape. The side edge 50 on the side of the portion 34 is slightly bent upward and is brought into close contact with the side wall of the tubular portion 34. As a result, the lubricating oil that flows down between the side wall of the tubular portion 34 and the side wall of the container 40 is
All are received by the main body portion 44 of the oil receiving plate 42, flowed down on the main body portion 44 toward the front end side, that is, the rear side, and are made to drip from the front end into the container 40 along the lower surface of the bent portion 46. . The lubricating oil thus collected in the container 40 is discharged through the discharge hole provided at the lower end of the container 40.
It is discharged from 54 to a recovery tank or the like through a pipe not shown.

Since the bellows 18 is moved relative to the guide bracket 30 in the vertical direction, there is a gap between the rear opening of the bellows 18 and the tubular portion 34 of the guide bracket 30, as shown in FIG. There is a gap 52. Therefore, foreign matter such as chips generated when the work is processed by an automatic processing machine such as a lathe may enter the bellows 18 through the gap 52, but these foreign matter and the lubricating oil. Similarly, the oil is dropped onto the main body 44 of the oil receiving plate 42, rolled on the main body 44 toward the tip side, and dropped from the upper end of the rear side wall of the container 40 to the outside of the container 40.

That is, the lubricating oil has a main body part due to its viscosity and surface tension.
While the foreign substances such as chips do not have the force to fall down the lower surface of the bent portion 46, the tip of the main body portion 44 can be dropped from the upper side of the bent portion 46 while being dropped into the container 40 from above. Therefore, it will fall to the outside of the container 40 as it is. Therefore, foreign matters such as chips are not mixed in the container 40, clogging of the discharge hole 54 due to such foreign matters is prevented, and the foreign matter is regularly excluded from the container 40. The troublesome work is eliminated.

Further, in this embodiment, since the container 40 is provided as a part of the bellows 18 for preventing foreign matter from entering the sliding portion of the slide member 10, alignment of the container 40 with respect to the bellows 18 and the like can be performed. It is not necessary, and its handling and assembly work become easy.

The main body 44 of the oil receiving plate 42 corresponds to an inclined plate, and the bent portion 46 corresponds to a return plate.

Although one embodiment of the present invention has been described in detail with reference to the drawings, the present invention can be implemented in other modes.

For example, although the oil receiving plate 42 is fixed to the container 40 in the above-described embodiment, it may be fixed to the tubular portion 34 of the guide bracket 30.

Further, although the bellows 18 prevents foreign matter from entering in the above embodiment, the present invention can be similarly applied even when the bellows 18 and the cover are not provided.

Further, in the above-described embodiment, the container 40 is provided so as to form a part of the bellows 18, but the container may be provided with a structure different from that of the bellows 18 by removing the plate 24 or the like.

Further, the bellows 18 is configured such that the cylinder body 20 located on the outer peripheral side is attached to the slide member 10, but the bellows that allows the cylinder body located on the inner peripheral side to be attached to the slide member 10 to be expanded and contracted is adopted. It is also possible to do so.

Further, in the above-mentioned embodiment, the lubricating oil recovery device for recovering the lubricating oil supplied to the sliding portion of the slide member 10 which is vertically moved up and down has been described, but it is supplied to other sliding portions such as the rotary sliding portion. The present invention can be similarly applied to the case of collecting lubricating oil and the like.

Although not illustrated one by one, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a plan view showing a slide member for recovering lubricating oil by a lubricating oil recovery device according to an embodiment of the present invention. FIG. 2 is a front view showing the bellows attached to the slide member of FIG. FIG. 3 is a rear view in which a part of the bellows of FIG. 2 is cut away. FIG. 4 is a vertical sectional view of the bellows of FIG. Fig. 5 shows VV in Fig. 2
FIG. FIG. 6 is a rear perspective view showing the guide bracket for guiding the bellows shown in FIG. 2 and the container provided at the lower end thereof. FIG. 7 is an enlarged vertical sectional view of the container shown in FIG. 10: Slide member, 18: Bellows 20a, 20b, 20c, 20d, 20e: Cylindrical body 40: Container, 44: Main body part (sloping plate) 46: Bending part (return plate)

Claims (2)

[Scope of utility model registration request] 1. A lubricating oil recovery device for injecting lubricating oil into a container opening upward to recover the lubricating oil, wherein the lubricating oil is provided at an inflow portion of the lubricating oil in the container, and a height of a side wall of the container is increased. The lower end is inclined downward as it goes toward the side wall, and the lower end is positioned above the side wall to drop foreign matter mixed in the lubricating oil from the front end of the container. To the tip of the inclined plate, which is integrally provided at the tip of the inclined plate and is inclined in the direction opposite to the inclination direction of the inclined plate so that the tip is located in the container. And a return plate that causes the flowing lubricating oil to travel down the surface and flow down into the container. 2. The container has a plurality of cylindrical bodies having stepwise different cross-sectional dimensions, and is attached to a slide member that can be vertically moved up and down, and is expanded and contracted as the slide member moves up and down. Of the plurality of bellows cylinders that prevent foreign matter from entering the sliding portion of the slide member, the bellows is provided so as to be engageable with the cylinder body that is located at the lowermost end when the bellows is extended and forms a part of the bellows. The lubricating oil recovery device according to claim 1, wherein