JP7178929B2 - Cutting oil tank equipment and machine tools - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cutting oil tank device and a machine tool.

2. Description of the Related Art In machine tools, there is known a cutting oil tank device that has a tank that receives and stores cutting oil that has been supplied to a tool and a work being processed, and supplies the cutting oil that is stored in the tank to the tool and the work again. A cutting oil tank device may have a chip receiver that receives and accumulates chips generated from a workpiece during machining (see Patent Document 1, for example). The cutting oil supplied to the tool and work being machined is filtered by the chip receiver and flows into the tank. The chips accumulated in the chip receiver are discharged to the outside of the cutting oil tank device through the chip discharging portion.

JP 2007-326154 A

It is conceivable to provide the cutting oil tank device with a door capable of opening and closing the chip discharge section. In this case, when the door is opened and closed, shavings adhering to the discharge portion may be mixed into the tank.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting oil tank device capable of preventing chips adhering to the discharge portion from entering the tank when the cutting oil tank device is provided with a door capable of opening and closing the discharge portion of the chips. and to provide machine tools.

A cutting oil tank device according to the present invention is a cutting oil tank device having a tank for receiving and storing cutting oil and a chip receiver for receiving and accumulating chips, wherein the chips are accumulated in the chip receiver. The back surface of the door forms the bottom surface of the discharge path for the chips when the door is open, and the chips falling from the back surface of the door when the door is closed It is characterized by further comprising an auxiliary chip receiver for receiving and accumulating powder.

In the cutting oil tank device according to the present invention having the above configuration, it is preferable that the auxiliary chip receiver can be pulled out from below the door.

In the cutting oil tank device according to the present invention having the above configuration, it is preferable that the auxiliary chip receiver has at least one hole for discharging the cutting oil.

A machine tool according to the present invention is characterized by having the cutting oil tank device according to the present invention.

According to the present invention, when a cutting oil tank device is provided with a door capable of opening and closing a chip discharging portion, it is possible to prevent chips adhering to the discharging portion side from entering the tank, and prevent chips from entering the tank. It is possible to provide a cutting oil tank device and a machine tool that are easy to scrape out.

It is an outline view showing a machine tool concerning one embodiment of the present invention. FIG. 2 is an exploded view showing a part of the cutting oil tank device shown in FIG. 1 ; FIG. 2 is a sectional view showing the cutting oil tank device shown in FIG. 1 with the door opened. FIG. 2 is a sectional view showing the cutting oil tank device shown in FIG. 1 with the door closed; FIG. 2 is a side view showing an auxiliary chip receiver of the cutting oil tank device shown in FIG. 1; FIG. 2 is a rear view showing an auxiliary chip receiver of the cutting oil tank device shown in FIG. 1;

Hereinafter, a cutting oil tank device and a machine tool according to embodiments of the present invention will be illustrated in detail with reference to the drawings.

As shown in FIG. 1, a machine tool 1 according to this embodiment has a cutting oil tank device 2 . The cutting oil tank device 2 has a tank 3, a chip receiver 4, a door 5 and an auxiliary chip receiver 6, as shown in FIGS. 3A and 3B. The tank 3 receives and stores the cutting oil F supplied to the tool and work being processed (not shown). The chip receiver 4 receives and accumulates chips C generated from the workpiece by machining. In FIGS. 3A and 3B, illustration of the chips C accumulated in the chip receiver 4 is omitted. The chip receiver 4 has a filtering portion (not shown) for passing the cutting oil F received together with the chips C toward the tank 3 . The filtering part is configured by mesh, for example. The chip receiver 4 is positioned above the tank 3 . The cutting oil tank device 2 resupplies the cutting oil F stored in the tank 3 to the tool and work being processed by a pump (not shown).

The door 5 opens and closes the discharge portion 7 for the chips C accumulated in the chip receiver 4 . The discharge part 7 is constituted by a discharge port. The rear surface (rear surface) of the door 5 forms the bottom surface of the discharge path for the chips C when the door 5 is open. That is, the chips C accumulated in the chip receiver 4 are scraped out along the upper surface of the chip receiver 4 and the back surface of the door 5 by a scraping rod or the like (not shown) in the open state of the door 5. 2 is discharged outside.

In the present embodiment, the front of the cutting oil tank device 2 means the direction from the rear side to the front side of the door 5 along the horizontal direction, and the rear side means the opposite direction. In the present embodiment, with respect to the cutting oil tank device 2, "upward" means upward along the vertical direction, and "downward" means the opposite direction. In the present embodiment, the left-right direction of the cutting oil tank device 2 means a direction perpendicular to both the front-rear direction and the up-down direction.

The chip receiver 4 includes a horizontally extending horizontal portion 4a, a forward inclined portion 4b extending upward from the front end of the horizontal portion 4a, and a forward inclined portion 4b extending forward from the front end of the forward inclined portion 4b. and a front end portion 4c extending downwards toward. The chip receiver 4 is composed of a plurality of members. FIG. 2 shows a first member 4d having a front bevel 4b and a front end 4c.

The door 5 opens and closes the discharge section 7 by pivoting via a hinge 8 (see FIG. 2). The door 5 may have a grip portion for an operator to open and close the door 5, or may be configured to automatically open and close according to the operator's operation or the like. The door 5 includes a substantially rectangular base panel portion 5a capable of opening and closing a substantially rectangular discharge portion 7, a left panel portion 5b extending from the left edge of the base panel portion 5a to the back side of the base panel portion 5a, and a base portion. and a right panel portion 5c extending from the right edge of the panel portion 5a to the back side of the base panel portion 5a.

The base panel portion 5a has a lower edge that is offset to the back side through the bent portion. The lower edge of the base panel portion 5a extends in the left-right direction along the back surface of the lower frame portion 9a of the discharge portion forming portion 9 when the door 5 is closed. The lower edge of the base panel portion 5a extends in the left-right direction along the lower surface of the front inclined portion 4b of the chip receiver 4 when the door 5 is open. The door 5 has a protruding panel portion 5d that protrudes from the lower end portion of the base panel portion 5a to the rear side and extends in the left-right direction along the lower surface of the front end portion 4c of the chip receiver 4 when the door 5 is open. The door 5 may be configured to maintain an open state by contacting the lower edge of the base panel portion 5a with the back surface of the lower frame portion 9a. The open state may be maintained by abutting on the lower surface of the.

The cutting oil tank device 2 has a discharge portion forming portion 9 forming the discharge portion 7 . The ejection portion forming portion 9 includes a lower frame portion 9a forming the lower edge of the ejection portion 7, a left frame portion 9b forming the left edge of the ejection portion 7, and a right frame portion 9c forming the right edge of the ejection portion 7. and an upper frame portion 9 d forming the upper edge of the discharge portion 7 . The lower end of the left panel portion 5b of the door 5 is connected to the left frame portion 9b via the left hinge portion 8a. The lower end of the right panel portion 5c of the door 5 is connected to the right frame portion 9c via the right hinge portion 8b. The hinge 8 is composed of a left hinge portion 8a and a right hinge portion 8b.

The first member 4d includes a left wall portion 4e extending upward from the left edge of the front inclined portion 4b and the front end portion 4c, and a right wall portion 4f extending upward from the right edge of the front inclined portion 4b and the front end portion 4c. and The left wall portion 4e is connected to the left frame portion 9b via a bracket 10a. The right wall portion 4f is connected to the right frame portion 9c via a bracket 10b. A gap G exists between the front end portion 4c of the first member 4d and the rear surface of the closed door 5 when the first member 4d is connected to the discharge portion forming portion 9 .

When the door 5 is open, the upper surface of the horizontal portion 4a of the chip receiver 4, the upper surface of the forward inclined portion 4b of the chip receiver 4, the upper surface of the front end portion 4c of the chip receiver 4, and the back surface of the door 5 (more specifically, In addition, the rear surface of the base panel portion 5a and part of the rear surface of the protruding panel portion 5d) form the bottom surface of the discharge path of the chips C. As shown in FIG. Therefore, the operator can open the door 5 and easily scrape out the chips C along the back surface of the door 5, as indicated by the white arrow in FIG. 3A. Further, the operator can prevent foreign matter from entering the inside of the cutting oil tank device 2 by closing the door 5 thereafter. That is, the cutting oil tank device 2 can suppress foreign matter from entering from the outside and facilitates the work of scraping out the chips C. As shown in FIG.

In the closed state of the door 5, there is a gap G between the front end portion 4c of the first member 4d and the back surface of the door 5 in the closed state. C may drop gradually through the gap G. If the fallen chips C enter the tank 3, it will be necessary to shorten the maintenance cycle of the tank 3, and the pump that supplies the cutting oil F in the tank 3 to the tool being processed and the work will be adversely affected. and other inconveniences. Therefore, the cutting oil tank device 2 according to the present embodiment further includes an auxiliary chip receiver 6 that receives and accumulates the chips C falling from the back surface of the door 5 when the door 5 is closed.

As shown in FIGS. 2, 4A and 4B, the auxiliary chip receiver 6 has a box 6f composed of a bottom wall 6a, a front wall 6b, a rear wall 6c, a left wall 6d and a right wall 6e. The bottom wall 6a, the front wall 6b, the rear wall 6c, the left wall 6d and the right wall 6e are all rectangular. The rear wall 6c, left wall 6d and right wall 6e have the same height. The front wall 6b has a higher height than the rear wall 6c, the left wall 6d and the right wall 6e. The auxiliary chip receiver 6 has a grip portion 6g extending forward from the upper end of the front wall 6b and bent downward.

The auxiliary chip receiver 6 has at least one hole 6h for discharging the cutting oil F. More specifically, the auxiliary chip receiver 6 has seven holes 6h penetrating through the connecting portion between the rear wall 6c and the bottom wall 6a. In FIGS. 2 and 4B, only one hole 6h is labeled. The hole 6h has a size that allows the cutting oil F to pass through but substantially blocks the chips C from passing through. The size of the hole 6h can be appropriately set in consideration of the size of the chips C, the type of cutting oil F, and the like. The cutting oil F received by the auxiliary chip receiver 6 together with the chips C is discharged from the hole 6 h and collected in the tank 3 . The auxiliary chip receiver 6 may be configured without the hole 6h.

The auxiliary chip receiver 6 can be pulled out from below the door 5 . As shown in FIG. 2, the discharging portion forming portion 9 has a substantially U-shaped notch 11 positioned below the lower frame portion 9a and into which the box 6f of the auxiliary chip receiver 6 is inserted. The discharge portion forming portion 9 has a left rail portion 12 a located on the left side of the notch 11 and a right rail portion 12 b located on the right side of the notch portion 11 . The box 6f of the auxiliary chip receiver 6 can be retracted until the front wall 6b comes into contact with the lower frame portion 9a while being placed on the left rail portion 12a and the right rail portion 12b. The auxiliary chip receiver 6 can receive chips C falling from the rear surface of the door 5 by means of a box body 6f positioned below the door 5 at the retraction limit position. The box 6f of the auxiliary chip receiver 6 can move forward from the backward limit position while being placed on the left rail portion 12a and the right rail portion 12b. The auxiliary chip receiver 6 is separable from the discharge section forming section 9 . Therefore, as indicated by the white arrow in FIG. 3B, the operator can pull out the auxiliary chip receiver 6 from below the door 5 to the outside to easily discharge the chips C accumulated in the box 6f. .

The tank 3, the chip receiver 4, the door 5, the auxiliary chip receiver 6, and the discharge section forming section 9 may each be made of sheet metal, but are not limited to this.

The embodiment described above is merely an example of the embodiment of the present invention, and it goes without saying that various modifications are possible without departing from the gist of the invention.

REFERENCE SIGNS LIST 1 machine tool 2 cutting oil tank device 3 tank 4 chip receiver 4a horizontal portion 4b forward inclined portion 4c front end portion 4d first member 4e left wall portion 4f right wall portion 5 door 5a base panel portion 5b left panel portion 5c right panel portion 5d projecting panel portion 6 auxiliary chip receiver 6a bottom wall 6b front wall 6c rear wall 6d left wall 6e right wall 6f box 6g grip portion 6h hole 7 discharge portion 8 hinge 8a left hinge portion 8b right hinge portion 9 discharge portion forming portion 9a lower frame portion 9b left frame portion 9c right frame portion 9d upper frame portion 10a, 10b bracket 11 notch 12a left rail portion 12b right rail portion C chips F cutting oil G gap

Claims (4)

A cutting oil tank comprising: a tank for receiving and storing cutting oil; and a chip receiver located above the tank for passing the cutting oil toward the tank and collecting chips received together with the cutting oil. a device,
a door that opens and closes a discharge portion for chips accumulated in the chip receiver, the rear surface of the door forming a bottom surface of the discharge path for the chips when the door is open;
The cutting oil tank device further comprises an auxiliary chip receiver that receives and accumulates the chips falling from the back surface of the door when the door is closed. 2. The cutting oil tank device according to claim 1, wherein said auxiliary chip receiver can be pulled out from below said door. 3. The cutting oil tank device according to claim 1, wherein said auxiliary chip receiver has a hole for discharging said cutting oil. A machine tool comprising the cutting oil tank device according to any one of claims 1 to 3.

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