JPH08196826A - Device for recovering cutting oil - Google Patents

Abstract

PURPOSE: To carry out a recovery operation without requiring manpower by recovering the chips stuck with a cutting oil by a chip conveyor into a chip tank and resupplying the cutting oil stored in the chip tank into a cutting oil tank by a pump driven by the operation of a cutting machine as a driving power source. CONSTITUTION: The chips and the cutting oil fall into the cutting oil tank 3 but the chips and the greater part of the cutting oil are separated on the chip conveyor 4 when cutting is executed by the operation of the cutting machine 1. The chips are transported by the chip conveyor 4 to the chip tank 5 and the cutting oil is stored in the cutting oil tank 3. The cutting oil is stuck to the chips transported to the chip tank 5 but the chips are separated by a mesh member 7 of the tank 5 and the cutting oil is stored into the chip tank 5. The cutting oil is recovered into the cutting oil tank 3 via pipes 9, 16 by a pump 10 operating in response with the cutting machine 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for recovering cutting oil adhering to chips produced by a cutting machine.

[0002]

2. Description of the Related Art In a cutting machine for cutting a material while using cutting oil, for example, a mesh is used to separate the cutting oil and the cutting oil generated by the cutting and collect the cutting oil into a cutting oil tank. A chip tank is used in which chips are deposited on top of the mesh and cutting oil is stored below the mesh.

In this case, for collecting the cutting oil accumulated at the bottom of the chip tank, for example, a drain cock is provided at the bottom of the chip tank, and the cutting oil accumulated in the chip tank is drained from the drain cock to an oil pan or the like. It was re-supplied to the cutting oil tank. Alternatively, vacuum chips or electric pumps have been used to collect chips from a chip tank into drums or the like.

[0004]

However, the former method requires a lot of labor because all the operations are manual operations, and the latter method has a problem that an air source and a power source are required. Further, even in the latter case, there was no change in that labor was required to re-inject the collected cutting oil into the cutting oil tank.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cutting oil recovery apparatus which can perform recovery operation without requiring manpower.

[0006]

According to a first aspect of the present invention, a cutting oil tank for storing cutting oil of a cutting machine and a cutting oil tank which collects cutting oil falling from the cutting machine are dropped from the cutting machine. A chip conveyor that receives and conveys chips, a chip tank that accumulates the chips conveyed by the chip conveyor, separates the cutting oil adhering to the chips, and a pump that operates using the operation of the cutting machine as a power source. And a cutting oil passage for supplying the cutting oil separated in the chip tank to the cutting oil tank via the pump.

According to a second aspect of the present invention, in the first aspect of the invention, the pump is constituted by a cylinder that expands and contracts according to the operation of the cutting machine.

According to a third aspect of the invention, in the first aspect of the invention, the chip tank is a mesh member for depositing chips,
A reservoir that stores cutting oil that drops from the mesh member,
It has and.

[0009]

According to the invention of claim 1, the chip conveyor collects the chips adhering to the cutting oil in the chip tank, and the pump operating with the operation of the cutting machine as a power source collects the cutting oil stored in the chip tank. Resupply to the cutting oil tank.

According to the second aspect of the present invention, the cylinder that expands and contracts in response to the operation of the cutting machine sucks the cutting oil in the chip tank and discharges it to the cutting oil tank.

According to the third aspect of the present invention, the cutting chips conveyed by the chip conveyor are accumulated on the mesh member to separate the cutting chips from the cutting oil, and the cutting oil dropped from the cutting chips is stored in the reservoir.

[0012]

1 to 8 show an embodiment of the present invention.

As shown in FIG. 1, the cutting machine 1 is equipped with a rotating drill 2 and moves in the Z-axis direction in the figure via a moving mechanism (not shown). A support allowance 1A for the workpiece W that can move in the X and Y axis directions in the figure against the drill 2 is provided.

A cutting oil tank 3 for storing cutting oil is provided below the drill 2, and the cutting oil in the cutting oil tank 3 is supplied to a cutting point through a supply device (not shown) when the material is cut by the drill 2. It

The cutting oil tank 3 has a top surface on which the cutting machine 1 has an upper surface.
The chip conveyor 4 is provided so as to cross the inside of the opening. The chip conveyor 4 is arranged so that the base end is low and the tip is high, and the tip is projected laterally from the cutting oil tank 3. The chips and cutting oil that have fallen into the cutting oil tank 3 fall onto the chip conveyor 4, and the chips are conveyed by the chip conveyor 4 in the tip direction. Further, the cutting oil is dropped from the chip conveyor 4 into the cutting oil tank 3.

A chip tank 5 is provided on the tip side of the chip conveyor 4. The chip tank 5 has a partition wall 6 as shown in the figure.
Is divided into two tanks 6A and 6B, and the tank 6A located below the tip of the chip conveyor 4 is vertically divided by the mesh member 7. A pipe 9 to which a strainer 8 is attached is inserted into the other tank 6B from above. Tank 6A and tank 6B
Communicate with each other below the mesh member 7 through a communication port provided in the partition wall 6.

A reciprocating pump 10 is provided adjacent to the cutting machine 1 in order to suck the cutting oil in the tank 6B from the pipe 9. As shown in FIG. 2, the pump 10 defines an oil chamber 14 inside a cylinder tube 13 with a freely slidable piston, and a piston rod 11 fixed to the piston is projected from the cylinder. Is urged in the extension direction, and the end of the piston rod 11 contacts the end of the cutting machine 1 from the Z-axis direction. The oil chamber 14 is connected to the pipe 9 via a check valve 15. Further, the oil chamber 14 is connected to a pipe 16 that opens inside the cutting oil tank 3 via a check valve 17. The pipes 9 and 16 form a cutting oil passage.

Next, the operation will be described.

When cutting is performed by operating the cutting machine 1, chips and cutting oil fall into the cutting oil tank 3. The chips and most of the cutting oil are separated on the chip conveyor 4, the chips are conveyed to the chip tank 5 by the chip conveyor 4, and the cutting oil travels along the chip conveyor 4 and the cutting oil tank 3 below.
Collects at the bottom of.

On the other hand, the cutting oil still adheres to the chips conveyed to the chip tank 5. This cutting oil is separated in the process in which chips are accumulated on the mesh member 7 of the tank 5, and is accumulated at the bottom of the chips tank 5.

The cutting oil accumulated in the chip tank 5 is supplied to a pipe 9 by a pump 10 which responds to the displacement of the cutting machine 1 in the Z-axis direction.
And are collected in the cutting oil tank 3 through 16. That is, when the cutting machine 1 is displaced leftward in the figure along the Z axis in FIG. 1, the piston rod 1 urged by the spring 12 is moved.
1 extends and expands into the oil chamber 14 through the pipe 9 to the tank 6B.
The cutting oil in the chip tank 5 is sucked in from. Cutting machine 1 is Z
When it is displaced rightward in the drawing along the axis, the piston rod 11 is pushed by this and contracts, and the pump 10 discharges the cutting oil in the oil chamber 14 to the cutting oil tank 3 via the check valve 17 and the pipe 16. To do. In this way, each time the cutting machine 1 operates, the piston rod 11 expands and contracts to perform a pump operation.

Therefore, the cutting oil in the chip tank 5 can be recovered in the cutting oil tank 3 without using a special power source. Further, since the pump 10 responds to the operation of the cutting machine 1, it operates only when the cutting machine 1 operates, and does not operate at other times. Therefore, it is not necessary to turn the pump 10 on and off, and the cutting oil is automatically collected with the operation of the cutting machine 1.

In the above embodiment, the operating direction of the cutting machine 1 and the extending / contracting direction of the piston rod 11 are set to be the same, but such setting may be difficult depending on the configuration of the machine. 3 and 4 show another embodiment relating to the expansion and contraction drive of the piston rod 11.

In FIG. 3, the eccentric cam 20 is attached to the rotary shaft 2A of the drill 2, and the roller 21 attached to the end of the piston rod 11 is brought into contact with the eccentric cam 20. As a result, the piston rod 11 expands and contracts once each time the rotating shaft 2A makes one rotation.

In FIG. 4, the cam plate 22 fixed to the side surface of the cutting machine 1 and the roller 2 attached to the end of the piston rod 1 are shown.
1, the piston rod 11 is driven in the direction perpendicular to the displacement of the cutting machine 1.

As described above, the pump 10 can be driven through various means depending on the direction of displacement of the cutting machine 1.

FIG. 5 shows an embodiment in which the spring 12 is housed in the cylinder 13, and FIG. 6 shows an embodiment in which the check valves 15 and 17 are housed in the cylinder 13.

FIG. 7 shows an embodiment having a stroke distance adjusting function of the piston rod 11. The adjusting rod 23 screwed into the piston rod 1 is adjusted according to the operation stroke of the cutting machine 1 to adjust the piston rod 11 substantially. Adjust the appropriate length.

FIG. 8 shows an embodiment in which a cushioning material 24 is attached to the end portion of the piston rod 11 in order to soften the impact when the piston rod 11 collides with the end surface of the cutting machine 1.

[0030]

As described above, according to the first aspect of the invention, the cutting oil tank for storing the cutting oil of the cutting machine and the cutting oil falling from the cutting machine are dropped into the cutting oil tank while flowing into the cutting oil tank. The chip conveyor that captures and conveys the chips and the chips that are conveyed by the chip conveyor are accumulated, and the chip tank that separates the cutting oil adhering to the chips and the operation of the cutting machine act as the power source. Since the pump and the cutting oil passage for supplying the cutting oil separated by the cutting chip tank to the cutting oil tank via the pump are provided, the cutting oil separated from the cutting chips responds to the cutting machine. It will be possible to automate the collection of cutting oil.

According to the second aspect of the present invention, since the pump is constituted by the cylinder that expands and contracts according to the operation of the cutting machine, the pump can be simply constructed.

According to the third aspect of the present invention, since the chip tank is provided with the mesh member for accumulating the chip and the reservoir for storing the cutting oil falling from the mesh member, the cutting chip and the cutting oil are separated from each other. It can be done efficiently.

As described above, according to the present invention, the recovery of the cutting oil, which has conventionally been done by labor, can be automated with a simple structure, so that a preferable effect can be obtained in saving the labor of the cutting work.

[Brief description of drawings]

FIG. 1 is a perspective view of a cutting oil recovery device showing an embodiment of the present invention.

FIG. 2 is likewise a hydraulic circuit diagram of the pump.

FIG. 3 is a side view of a pump driving unit according to another embodiment.

FIG. 4 is a side view of a pump driving unit according to still another embodiment.

FIG. 5 is a vertical sectional view of a cylinder according to still another embodiment.

FIG. 6 is a vertical cross-sectional view of a cylinder according to still another embodiment.

FIG. 7 is a side view of a cylinder according to still another embodiment.

FIG. 8 is a side view of a cylinder according to still another embodiment.

[Explanation of symbols]

 1 Cutting Machine 3 Cutting Oil Tank 4 Chip Conveyor 5 Chips Tank 9,16 Pipe 10 Pump

Claims (3)

[Claims] 1. A cutting oil tank for storing cutting oil of a cutting machine, and a chip conveyor for collecting cutting oil falling from the cutting machine in the cutting oil tank and receiving and transporting chips falling from the cutting machine. A chip tank that accumulates the chips conveyed by the chip conveyor and separates the cutting oil adhering to the chips, a pump that operates using the operation of the cutting machine as a power source, and a cutting oil separated by the chip tank. And a cutting oil passage for supplying the cutting oil to the cutting oil tank via the pump. 2. The cutting oil recovery apparatus according to claim 1, wherein the pump is a cylinder that expands and contracts according to the operation of the cutting machine. 3. The cutting oil recovery apparatus according to claim 1, wherein the cutting chip tank includes a mesh member for accumulating cutting chips and a reservoir for storing cutting oil falling from the mesh member.