JPH058039Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a cutting oil filtration device for general-purpose machine tools such as lathes, drilling machines, boring machines, and milling machines, as well as processing lines for special-purpose machine tools and transfer machines. It is related to.

(Prior Art) Cutting oil filtration devices for machine tools have so far been installed as separate equipment from the main body of the machine tool, in a location away from the main body. The oil was collected in the oil tank below through the pipe, and then sent to the above-mentioned filtration device through a large-diameter pipe for filtration, and then circulated to the main body.

(Problem that the invention aims to solve) Therefore, when installing a machine tool on a production line, in addition to the layout of the machine itself, it is necessary to secure space for installing a cutting oil filtration device. . Furthermore, the above cutting oil filtration device requires a relatively large installation area and volume in order to filter the cutting oil and remove chips accumulated during the filtration.

This idea provides a cutting oil filtration device below the cutting oil receiver located at the bottom of the main body of the machine tool.
By integrating this with the bed or storing it within the bed, it is possible to save a lot of space.

(Means for Solving the Problems) In order to solve the above problems, in this invention, as shown in FIG. A cutting oil receiving tray 3 is fixed, and an oil drain port 4 is opened on one side of the left and right sides of this receiving tray 3.
A first oil tank 5 which is long in the front-rear direction is provided below the saucer 3 on the side where the oil drain port 4 opens, and a second oil tank 6 which is long in the front-rear direction is provided below the opposite side. The two oil tanks 6 are connected by an overflow pipe 7 which is inclined so that the first oil tank 5 side is higher, and the first oil tank 5 is provided with a chip conveyor 8 for scraping out the sediment on the bottom plate of the first oil tank 5. 6, a perforated plate 9 that partitions the inside of the tank into upper and lower parts, and this perforated plate 9
A slidable filter conveyor 10 for filtering cutting oil is disposed along the upper surface of the second oil tank 6, and a circulation pipe 11 for cutting oil is connected to the second oil tank 6. In addition, 12 in the figure is a circulation pump. The above-mentioned filter conveyor 10 is formed endlessly and has a second
Preferably, the oil circulates between the oil tank 6 and the outside and is regenerated outside, but it is also possible to introduce a predetermined length from one end of the second oil tank 6, take it out from the other end, and wind it up after taking it out. good.

(Function) Chips and other contaminants generated by cutting of the machine tool body 1 fall into the tray 3 together with cutting oil, flow into the first oil tank 5 from the oil drain port 4 on one side, and
The chips and other heavy solids mentioned above settle at the bottom of the first oil tank 5, and this sediment is scraped out by the chip conveyor 8 in the first oil tank 5. The cutting oil and relatively light suspended solids that have flowed into the first oil tank 5 overflow from the opening of the overflow pipe 7 and flow into the second oil tank 6 via the overflow pipe 7. It is cleaned through the filter conveyor 10 and the holes in the perforated plate 9, and then circulated to the machine tool body 1 via the circulation pipe 11. Then, the pollutants captured by the filter conveyor 10 are carried out by the filter conveyor 10, and the filter conveyor 10 on the perforated plate 9 is renewed.

(Example) In Fig. 2, the bed 2 is
It is long in the left-right direction in the figure, has a flat upper surface, and has legs 2a (see FIG. 1) with a trapezoidal cross section on the lower surface. A rectangular tray 3 covering the lower surface of the main body 1 is fixed to the upper part of the bed 2. The bottom plate 3a of this tray 3 has a chevron-shaped longitudinal section, and its ridgeline is indicated by 3b. A gutter groove 3c is formed in the valley in the width direction, penetrating the lower surface of the bed 2, and an oil drain port 4 is opened near the right end of the gutter groove 3c, so that the cutting oil that has fallen into the saucer 3 can be drained. Arrows A, B,
The oil flows in the order of C and flows down from the oil drain port 4 to the first oil tank 5 below.

As shown in FIG. 3, the first oil tank 5 includes a horizontal portion 5a extending rearward from the front end (right end in the figure) of the saucer 3, and an inclined portion 5b extending rearward and upward from the rear end of the horizontal portion 5a. An endless chip conveyor 8 consisting of a pair of left and right endless chains 8a and a scraper 8b is arranged between the front end of the horizontal part 5a and the upper end of the inclined part 5b, and rotates in the direction of arrow D. A discharge port 5c for scraping out sediment is opened at the lower surface of the rear end of the inclined portion 5b, and the transport vehicle 20 is placed on the floor below the discharge port 5c.

A second tray is placed on the opposite side of the above tray 3 (lower side in Figure 2).
An oil tank 6 is provided. As shown in FIG. 4, the second oil tank 6 includes a horizontal portion 6a extending from slightly behind the gutter groove 3c at the forefront of the saucer 3 to the rear of the saucer 3;
It consists of an inclined part 6b extending rearward and upward from the rear end of this horizontal part 6a, and a vertical part 6c extending downward from the rear end of this inclined part 6b, and a perforated plate below the horizontal part 6a that partitions the inside of the tank into upper and lower parts. 9 is provided, and an endless filter conveyor 10 made of cloth is disposed on the horizontal portion 6a above the perforated plate 9, the above-mentioned inclined portion 6b, and the vertical portion 6c. A dust collection gutter 22 and a screw conveyor 23 are provided inside the end of the filter conveyor 10 in the vertical part 6c, and an air inlet 6 opens in the front plate of the vertical part 6c.
The air blowing side of the blower 24 is connected to the air blowing port 6d, and by blowing air from the blower 24 into the blowing port 6d, the pollutants that have adhered to the filter conveyor 10 and are carried are removed from the filter conveyor 10 to the dust collection gutter 22.
This is Screw Conveyor 23.
and is carried laterally and discharged from the side of the vertical portion 6c. On the other hand, a circulation pump 25 is provided at the front end of the horizontal portion 6a.
The inlet is connected to the main body 1, and the outlet thereof is connected to the main body 1. Note that 26 is a motor for driving the circulation pump 25.

The first oil tank 5 and the second oil tank 6 described above are connected by two overflow pipes 7, front and rear, as shown in FIG. This overflow pipe 7 is provided diagonally so as to be higher on the first oil tank 5 side. Note that the hydraulic oil tank (not shown) of the hydraulic unit is the
It is installed on the floor between the inclined part 5b of the oil tank 5 and the inclined part 6b of the second oil tank 6.

In the above structure, the cutting oil containing chips and other contaminants flows through the bottom plate 3a of the saucer 3 from the ridgeline 3b toward the gutter groove 3c (in the direction of arrow A), as described above.
The oil flows through the gutter groove 3c in the width direction (direction of arrow B) and further passes through the lower part of the bed 2, flows into the first oil tank 5 from the oil drain port 4 as shown by arrow C, and sinks to the bottom of the first oil tank 5. Relatively heavy deposits such as chips are conveyed by the chip conveyor 8 and scraped out by the transport vehicle 20 from the discharge port 5c on the lower surface of the rear end of the inclined portion 5b. Further, the cutting oil and relatively light floating substances overflow from the overflow pipe 7 into the second oil tank 6 as shown by arrow E, and the cutting oil passes through the filter conveyor 10 and is circulated to the main body 1. When contaminants adhere to the filter conveyor 10 and the filtration resistance increases and the cutting oil level in the second oil tank 6 rises above the set value, the filter conveyor 10 is driven and the contaminants are removed from the vertical portion 6c. When the filter conveyor 10 in the horizontal section 6a is removed and the filter conveyor 10 in the horizontal section 6a is renewed, the filtration resistance is lowered and the cutting oil level falls below the set value, the drive of the filter conveyor 10 is stopped.

(Effect of the invention) This invention has a first oil tank and a second oil tank located below the saucer.
An oil tank is installed, and the cutting oil, chips, and other contaminants that have fallen into the receiving tray flow into the first oil tank, and the sediment that has sunk to the bottom of the first oil tank is scraped out by a chip conveyor. The cutting oil and relatively light floating matter are allowed to overflow from the overflow pipe into the second oil tank, and the cutting oil that flows into the second oil tank is filtered by a filter conveyor and circulated to the main body, so that the filter conveyor can be updated as appropriate. Because of this, clean cutting oil can always be supplied to the main body, and since it is installed below the first oil tank and the second oil tank, there is no need to separately install a cutting oil filtration device. The installation space can be saved.

[Brief explanation of drawings]

FIG. 1 is a vertical cut front view of an embodiment of this invention.
FIG. 2 is a plan view of the saucer, FIG. 3 is a longitudinal sectional view of the first oil tank, and FIG. 4 is a longitudinal sectional view of the second oil tank. 1...Main body of machine tool, 2...Bed, 3...
Saucer, 4... Oil drain port, 5... First oil tank, 6...
2nd oil tank, 7... Overflow pipe, 8... Chip conveyor, 9... Perforated plate, 10... Filter conveyor, 11... Cutting oil circulation pipe.

Claims (1)

[Scope of utility model registration request] A cutting oil saucer is fixed to the top of the bed that supports the main body of the machine tool, and an oil drain port is opened on either side of the saucer, and an oil drain port is opened at the bottom of the saucer on the side where this oil drain port opens. A first oil tank that is long in the front-rear direction and a second oil tank that is long in the front-rear direction are provided at the bottom of the opposite side, and the first oil tank and the second oil tank are connected by an overflow pipe that is slanted so that the first oil tank side is higher. The first oil tank is provided with a chip conveyor for scraping out the sediment on the bottom plate, and the second oil tank is equipped with a perforated plate that partitions the inside of the tank into upper and lower parts, and a chip conveyor that is slidable along the upper surface of the perforated plate. A cutting oil filtration device for a machine tool, characterized in that a filter conveyor for filtering cutting oil is provided, and a cutting oil circulation pipe is connected to the second oil tank.