JPH0529800Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for separating and recovering lubricating oil supplied to the cross slide of a machine tool for dry cutting from chips.

(Prior art) Lubricating oil is supplied to the cross slide of a machine tool to lubricate the sliding surface, or excess lubricating oil drips from the cross slide. case,
Since the lubricating oil does not mix with the cutting fluid, it can be recovered. In order to efficiently collect lubricating oil without scattering it around, an oil groove is provided on the sliding surface of the cross slide, and an oil gutter is provided on the side of the saddle on which the cross slide is mounted, which is used for lubrication. There is a machine in which the oil and excess lubricating oil flow from the oil groove to the oil groove and are collected through an oil hole provided in the oil gutter into an oil reservoir provided at the bottom of the machine body. In addition, as a cutting oil recovery device similar to the recovery device of the present invention, Japanese Utility Model Application Publication No. 53-69086 discloses a device having a structure in which chips are received by a filter section and a cutting oil storage section with a large capacity is provided below the filter section. is disclosed. Further, Japanese Utility Model Application Publication No. 60-91347 discloses a structure in which a separation net for receiving chips with an oil tank below is provided with a chip removing device driven by a cylinder.

(Problem to be solved by the invention) By the way, if an oil gutter is provided on the side of the saddle as described above, the space occupied by the saddle will become large and the oil will be There are disadvantages such as chips getting into the gutter, which impedes the flow of oil, and the overhang of the tool post must be large to prevent the workpiece from hitting the oil gutter.

Also, Utility Model Application No. 53-69086 and Utility Model Application No. 60-
All of the recovery devices disclosed in Publication No. 91347 require a large oil storage tank below to recover the cutting oil that is used in large quantities. Furthermore, separation of chips and lubricating oil by filtration is insufficient in separating lubricating oil, which is not a large amount, and is insufficient in removing chips. For that reason,
Even if these cutting oil recovery devices were used as lubricating oil recovery devices, they were large and wasteful, and it was difficult to separate the lubricating oil and remove chips sufficiently.

The present invention solves these conventional problems and provides a practical cross-slide lubricant recovery device that does not require a large tank and can separate and collect lubricant and remove chips with a simple structure. This is what we intend to provide.

(Means for solving the problem) The gist of the present invention that solves the problem is that one end of the bottom plate is fixed above the inside of the base that surrounds the bed of the machine tool and supports the bed, and the other end is lowered downward. A chip receptacle is installed at an angle.
A swarf reservoir with a gently sloped bottom is provided below the swarf receiver, and a swarf discharge that can move from one end of the swarf reservoir to the other end is provided in a vertical portion between the swarf receiver and the swarf reservoir. A piston of the device is provided so as to be able to protrude, an oil gutter is provided that communicates from the chip pool to an oil pool provided below the base, a seal is provided in the vertical portion through which the piston penetrates, and a seal is provided at the tip of the piston. A lubricating oil recovery device for a machine tool includes a flexible mesh plate that is placed in contact with the bottom of a swarf pool.

(Function) In the present invention, the chips and lubricating oil fall into the inclined chip receptacle, fall and flow down while being separated, and fall into the chip pool. Normally, the vertical piston is in a retracted state, and the chips are prevented from falling into the oil pool by the mesh plate at its tip, and only the lubricating oil is absorbed by the mesh plate due to its gentle downward slope. and flows into the oil sump.

When a large amount of swarf accumulates in the swarf pool, the piston operates, pushing the swarf through the mesh plate and discharging it.

The vertical part of the piston is sealed to prevent chips and lubricating oil from entering the chip discharge device.

(Example) Hereinafter, an example in which the present invention is illustrated in the drawings will be described.

FIG. 1 is a side sectional view showing an embodiment of the present invention, in which a box-shaped base 4 supports a bed 3 on which a spindle head 1 and a cross slide 2 are placed, and surrounds the lower part of the bed 3. It is provided. One end of the bottom plate 51 is fixed inside the base 4, and the other end is tilted downward to receive the chips C falling from the workpiece W attached to the main shaft 11 and the lubricating oil falling from the cross slide 2. A receiver 5 is provided. A dish-shaped swarf pool 6 with a gently sloped bottom 61 is provided below the swarf receiver 5, and a vertical portion 52 provided between the swarf receiver 5 and the swarf pool 6 collects the chips. A discharge device 7 is provided. In the chip discharging device 7, a piston 72 reciprocated by an air cylinder 71 passes through a sealing 73 that is fixed to the vertical portion 52 and prevents chips and lubricating oil from entering the chip discharging device. It is configured to push out the chips C accumulated in the chips reservoir 6. As shown in FIGS. 2 and 3, a push plate 74 is attached to the tip of the piston 72 and extends across the entire width of the swarf reservoir 6, and a flexible porous material is attached to the bottom of the push plate 74. A mesh plate 75 made of wire mesh, for example, is attached by a mounting plate 76, chips C accumulated on the bottom part 61 are scraped up by a push plate 74 and a mesh plate 75, and only lubricating oil is passed through the mesh plate 75 and attached to the bottom part 61.
1 to an oil gutter 81 that flows into an oil reservoir 8 provided at the bottom of the base 4. A filter 82 that is removable from the outside is provided in the middle of the oil gutter 81 to prevent chips from entering from the chip pool 6. A pot 83 is provided in the oil reservoir 8 so that the accumulated oil can be taken out to the outside. A conveyor 9 for conveying the chips C to the outside is provided outside the chip pool 6.

Now, when lubricating oil is supplied to the cross slide 2 for cutting, the oil that has lubricated the sliding surface and excess lubricating oil flow down and fall into the chip receiver 5 along with the chips C generated by the cutting. Since the bottom plate 51 of the chip receiver 5 is inclined, the lubricating oil falls into the chip collection 6 below along with the chips C. When a predetermined amount of chips C accumulates in the chip reservoir 6, the air cylinder 7 is operated to remove the chips C from the outside of the chip reservoir 6 using a push plate 74 and a mesh plate 75 attached to the tip of the piston 72. It is discharged onto the conveyor 9. On the other hand, the lubricating oil that has fallen into the swarf pool 6 passes through the mesh plate 75 and is filtered, flows over the slanted bottom 61 of the swarf pool 6, flows toward the oil gutter 81, and is further flowed into the oil sump 8. It can be accumulated.

(Effects of the invention) According to the invention, the lubricating oil that lubricates the cross slide is collected together with chips in a chip collection by the chip receiver, and the chips are discharged by the piston of the chip discharge device. At the same time, only the lubricating oil is collected in the oil reservoir, which simplifies the structure of the cross slide and makes cutting work easier.Also, clean lubricating oil can be obtained from the chip reservoir through the mesh plate installed at the tip of the piston. effective. Furthermore, when the chips discharged from a plurality of machines are collectively discharged by a central conveyor, oil accumulation in the central conveyor pit is prevented, and unexpected fire accidents are prevented.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing an embodiment of the present invention;
The figure is an enlarged sectional view of the main part, and FIG. 3 is a normal cross-section of the main part of the AA sectional view. 2...Cross slide, 3...Bed, 4...
Base, 5... Chip receiver, 6... Chip collection, 7... Chip discharge device, 8... Oil pool, 6
1...Bottom, 72...Piston, 73...Sealing, 74...Press plate, 75...Mesh plate, 81...
Oil gutter, 82...filter.

Claims (1)

[Scope of utility model registration request] A chip receptacle is provided on the inside and upper side of the base that surrounds the bed of the machine tool and supports the bed, with one end of the bottom plate fixed and the other end lowered and inclined.
A swarf reservoir with a gently sloped bottom is provided below the swarf receiver, and a swarf discharge that can move from one end of the swarf reservoir to the other end is provided in a vertical portion between the swarf receiver and the swarf reservoir. A piston of the device is provided so as to be able to protrude, an oil gutter is provided that communicates from the swarf pool to an oil pool provided below the base, a seal is provided in the vertical portion through which the piston passes, and a seal is provided at the tip of the piston. A machine tool lubricating oil recovery device in which a flexible mesh plate is placed in contact with the bottom of the swarf pool.