KR100689240B1 - A portable apparatus for suppling cutting oil - Google Patents

Abstract

A portable apparatus for supplying cutting oil is provided to improve the injection force of the cutting oil with a simple structure by detachably installing a nozzle section and a switch section in a machine tool. A portable apparatus for supplying cutting oil includes an oil tank(10), an oil supply cylinder, a direction conversion valve, a nozzle section(40), and a switch section. The oil supply cylinder sucks and discharges the cutting oil in the oil tank by moving a piston forward and backward. The nozzle section is detachably installed in the vicinity of a machining section of a machine tool. The nozzle receives the cutting oil from a cutting oil discharge pipe and injects the cutting oil. The switch section is detachably installed in the machine tool to be turned on and off according to movement of an operation lever of the machine tool. The direction conversion valve is operated to move the oil supply cylinder forward by the on-operation of the switch section. Air is supplied to the nozzle section at the same time.

Description

A portable apparatus for suppling cutting oil}

1 is a view for explaining a cutting oil supply device according to the prior art.

2 is a perspective view of a mobile cutting oil supply device according to the present invention installed on a machine tool.

3 is a perspective view of a mobile cutting oil supply apparatus according to the present invention installed on another machine tool.

Figure 4 is a pneumatic circuit diagram showing the overall configuration of a mobile coolant supply apparatus according to the present invention.

5 is a perspective view showing a nozzle unit according to the present invention.

6 is a front view of the switch unit according to the present invention.

Figure 7 is a side view of the switch unit according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: coolant supply device 10: oil tank

20: oil supply cylinder 21: cylinder body

22: shaft member 23: piston

24: coolant supply pipe 25: coolant discharge pipe

26: air line A, B: first, second space

b1: forward port b2: reverse port

a: exhaust port 30: directional valve

40: nozzle part 41: nozzle part main body

42: nozzle 50: switch unit

51: fixed block 52: protrusion bar

53: micro switch 53a: adjusting ring

60: air discharge pipe 200: machine tool

210: processing unit 220: operating lever

The present invention relates to a mobile cutting oil supply device, and more particularly, to change the cutting oil of the oil tank in order to improve the spraying force of the cutting oil with a simple configuration and to quickly install the nozzle part and the switch part in the machine tool requiring the supply of cutting oil. A mobile cutting oil supply device which sucks into the oil supply cylinder by the operation of the valve and discharges cutting oil together with air in the nozzle unit, and detachably installs the nozzle unit and the switch unit in the machine tool.

In general, machine tools include various types of drilling machines, (table) milling machines, grinding machines, grinders, cutters, circular cutters, continuous press feeders, and tapping machines.

Such a machine tool is a cutting process while supplying the cutting oil to the machining portion in the machining of the workpiece, this is to reduce the cooling action, lubrication action, friction coefficient.

Among the above machine tools, in a large machine tool, a separate cutting feeder is installed to supply cutting oil during processing, which is a fixed type and is installed only when a minimum installation space is secured inside the machine.

However, a small machine tool that is difficult to install in the inside of the machine has a problem in that work efficiency is lowered because most workers work by supplying cutting oil by hand during most machining operations.

In order to solve the above problems, various cutting oil supply devices are disclosed, and among them, there is a "automatic cutting oil supply device" in Korean Utility Model Registration No. 20-0228129.

1 is a view for explaining a cutting oil supply apparatus according to the prior art.

As shown in the drawing, the coolant supply device is connected to the compressor 1, the air control valve 2, and the mixing part 3 by a feed pipe 4, and the outlet of the mixing part 3 has an open end. Pipe 4 is connected, the inner diameter of the tube is sharply reduced and expanded in the mixing section (3) and the cutting oil supply pipe (6) connected to the cutting oil tank (5) is connected in the vertical section is minimized, vertical The cam switch 8 mounted on the shaft of the feed lever 7 and the housing of the main body is configured to drive the compressor 1 when the vertical feed lever 7 is operated.

In the conventional cutting oil supply device configured as described above, when the cam switch 8 is turned on by the operation of the vertical feed lever 7, the compressor 1 is driven, and the compressed air of the compressor 1 is transferred to the feed pipe 4. In this case, in the mixing part 3 connected to the cutting oil tank 5 and the cutting oil supply pipe 72, the inner diameter of the pipe is drastically reduced and then expanded again in the same principle as the vaporizer, thereby reducing the pressure due to the pressure difference. The coolant is mixed with the air in the feed pipe 4 through the coolant supply pipe 6 to supply the coolant to the processing part of the machine tool.

However, the cutting oil supply device as described above has a problem in that the cutting oil is mixed and conveyed by the mixing unit 3 by the air pressure of the air compressor, so that the efficiency of spraying the cutting oil having a high viscosity is inferior.

In addition, there is also a problem that the transfer pipe 4 and the cam switch 8, which is injected with the cutting oil can not be easily removed from the machine tool to be transported to the required place.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. The object of the present invention is to improve the injection force of the cutting oil with a simple configuration, and to provide the cutting unit of the oil tank in order to quickly install the nozzle unit and the switch unit in the machine tool requiring the supply of cutting oil. The present invention provides a movable cutting oil supply device which sucks into the oil supply cylinder by the operation of the directional valve and discharges cutting oil together with air to the nozzle part, and detachably installs the nozzle part and the switch part in the machine tool.

The present invention for achieving this object is an oil tank filled with cutting oil, a cylinder body partitioned into first and second spaces around a central partition wall, shaft members installed through the partition walls, and both ends of the shaft member, respectively. An oil supply cylinder having a piston formed therein, and a cutting oil supply pipe communicating with the oil tank on one side of the first and second spaces to suck and discharge the cutting oil of the oil tank by forward and backward of the piston; A directional valve for providing air supplied from an air compressor to a port formed on the other side of the first and second spaces so as to move the piston of the oil supply cylinder forward and backward; A nozzle unit which is installed in such a manner that the cutting oil discharged by the oil supply cylinder is supplied to the cutting oil discharge pipe and sprays the cutting oil; And a switch unit detachably attached to the machine tool to be turned on / off according to the movement of an operating lever of the machine, wherein the direction switching valve is operated to advance the oil supply cylinder by the on operation of the switch unit, and the nozzle To supply air to the unit.

In addition, by installing an air discharge pipe directly connected to the air compressor in the nozzle unit is to switch the air to remove the chip generated in the machine tool when the switch is off.

In addition, the nozzle unit is composed of a nozzle unit body is installed in the lower portion is fixed to the machine tool, and a nozzle that is flexibly fixed to the nozzle unit body for injecting cutting oil to the processing unit of the machine tool.

In addition, the switch unit is made of a micro-switch including a fixed block which is installed at the bottom of the magnet attached to and detached from the machine tool, a protruding rod formed to protrude from the fixed block, the adjustment ring is adjusted in the height of the protruding rod .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a state in which a mobile cutting oil supply apparatus according to the present invention is installed in a machine tool, FIG. 3 is a perspective view of a state in which the mobile cutting oil supply apparatus according to the present invention is installed in another machine tool, and FIG. It is a pneumatic circuit diagram which shows the whole structure of the movable cutting oil supply apparatus.

As shown, the mobile coolant supply device 100 of the present invention can be installed in any machine tool such as a drilling machine, a (milling) milling machine, a grinding machine, a grinding machine, a cutting machine, a circular cutter, a press continuous roll feeder, and a tapping machine. In the present invention, the drilling machine (hereinafter referred to as machine tool) is shown as an embodiment.

In addition, the movable cutting oil supply device 100 of the present invention is located below the oil tank 10, the oil tank 10, the oil supply cylinder 20 and the direction switching valve (built in the case C) ( 30), the nozzle part 40 which injects cutting oil into the process part 210 of the machine tool 200, and the switch part 50 which operates the said oil supply cylinder 20 are comprised large.

In the above, the nozzle unit 40 and the switch unit 50 are detachably installed near the machine tool 200 to quickly move the movable cutting oil supply device 100 of the present invention to the required machine tool 200. It is.

The oil tank 10 is filled with a certain amount of cutting oil, the cap 11 is installed on the top to fill the cutting oil therein.

The oil supply cylinder 20 has a cylinder body 21 partitioned into first and second spaces A and B around a central partition 21a and a shaft member installed through the partition 21a. 22 and pistons 23 are formed at both ends of the shaft member 22, respectively, and the cutting oil supply pipe of the oil tank 10 communicated with any one of the first and second spaces A and B ( 24 is installed to suck and discharge the cutting oil of the oil tank 10 by the forward and backward of the piston (23).

In addition, in the present invention, a forward port b1 and a reverse port b2 are formed in communication with the air compressor in the second space portion B to move the piston 23 forward and backward, and the first space portion A is provided. An exhaust port a for discharging the internal air of the first space A is provided at the time of conveyance of the piston 23.

The directional valve 30 is the air supplied from the air compressor to forward and backward the piston 23 of the oil supply cylinder 20 to the other side of the first and second space portion (A) (B) To the formed port.

In addition, the direction switching valve 30 is operated by a solenoid method, it is preferable to be configured as a 5 port 2-position valve.

The nozzle unit 40 is detachably installed near the machining unit 210 of the machine tool 200 to receive the cutting oil discharged by the oil supply cylinder 20 to the cutting oil discharge pipe 25 to inject the cutting oil. It is to let.

In addition, the nozzle unit 40 has a magnet installed in the lower portion of the nozzle unit main body 41 which is detachably fixed to the machine tool 200 and the nozzle unit main body 41 is fixed to the machine tool ( It is preferable to be made of a nozzle 42 for injecting cutting oil to the processing unit 210 of the 200. (See Fig. 4)

The switch unit 50 is detachably installed on the machine tool 200 to be turned on / off according to the movement of the operating lever 220 of the machine tool 200, and a magnet is installed at a lower portion of the machine tool 200. Micro switch including a fixed block 51 detachable from the), a protrusion rod 52 protruding from the fixed block 51, and an adjustment ring 53a whose height is adjusted by the protrusion rod 52. (53).

The micro switch 53 is normally open (Normal open) has a structure that is turned on to operate the operating lever 220 of the machine tool 200.

In addition, when the micro switch 53 of the switch unit 50 is turned on at the time when the workpiece is cut or processed according to the movement of the operating lever 220 of the machine tool 200, the oil supply cylinder 20 is advanced. As the direction change valve 30 is changed in direction, air is supplied to the forward port b1 and air is supplied to the air line 26 communicating with the nozzle unit 40, and through the cutting oil discharge pipe 25. The blowing force is improved by supplying air to the coolant to be supplied.

In addition, the micro switch 53 is capable of adjusting the height of the cutting oil supply by adjusting the height of the projection rod 52 by the adjustment ring (53a) (see Figs. 5 and 6).

In addition, by installing an air discharge pipe 60 directly connected to the air compressor in the nozzle unit 40, when the switch unit 50 is off to inject air to remove the chips generated in the machine tool 200 .

It is preferable that a solenoid valve is installed on the air discharge pipe 60.

Meanwhile, in the present invention, the first and second timers 70 and 71 are installed, and the first timer 70 is a timer for adjusting the cutting oil injection time, and when the micro switch 53 is turned on for a predetermined time. It is to supply air to the port (b1) and the air line 26, the second timer 71 is the air discharge pipe when the micro switch 53 is turned off in the state that the cutting or processing of the machine tool 200 is completed It is to supply air to the (60) for a predetermined time.

Referring to the operation according to the invention in detail as follows.

The nozzle unit 40 and the switch unit 50 in which the magnet is installed are fixed near the machining unit 210 of the machine tool 200, and in the state where the cutting oil can flow from the oil tank 10 to the cutting oil supply pipe 24. Will be.

When the operator operates the operating lever 220 of the machine tool 200 in the above state, the micro switch 53 of the switch unit 50 is turned on, and thus the direction switching valve 30 is operated while the oil is operating. As the air is injected into the reverse port b1 of the second space portion B of the supply cylinder 20, the piston 23 moves backward.

When the piston 23 is retracted, the cutting oil of the oil tank 10 flows into the first space A through the cutting oil supply pipe 24, and when the predetermined time passes by the first timer 70, the direction change is performed. As the valve 30 is switched, air is injected into the forward port b1 of the second space portion B while the piston 23 is advanced to fill the cutting oil filled in the first space portion A with the cutting oil discharge pipe 25. When spraying to the) side, air is also supplied to the air line 26 and the cutting oil is injected from the nozzle unit 40.

When the injection of cutting oil is completed, air is injected into the reversing port b1 while the direction switching valve 30 is switched, and thus the cutting oil is filled into the first space A again. When the operation lever 220 moves upward in the state where the work is completed, the micro switch 53 is turned off.

As described above, while the air discharge pipe 60 is opened while the micro switch 53 is turned off, only the air is sprayed to the nozzle unit 40 for a predetermined time by the second timer 71 in the machine tool 200. The generated chips and the like are removed.

As described above, the cutting oil of the oil tank of the present invention is sucked into the oil supply cylinder by the operation of the directional valve, and the cutting oil is discharged together with the air in the nozzle part, and the nozzle part and the switch part can be detached from the machine tool. In this way, the nozzle portion and the switch portion can be quickly installed in a machine tool requiring cutting oil supply while improving the injection force of the cutting oil with a simple configuration.

Claims (4)

An oil tank (10) filled with cutting oil, A cylinder body 21 partitioned into first and second spaces A and B around a central partition 21a, a shaft member 22 installed through the partition 21a, and the shaft member 22. Pistons 23 are respectively formed at both ends of the first and second spaces A and B, and the cutting oil supply pipe 24 connected to the oil tank 10 is installed at either side of the first and second spaces A and B. An oil supply cylinder 20 which sucks and discharges the cutting oil of the oil tank 10 by the forward and backward of 23; Direction switching to provide the air supplied from the air compressor to the port formed on the other side of the first and second spaces (A) (B) to move the piston 23 of the oil supply cylinder 20 forward, backward The valve 30, A nozzle unit 40 detachably installed near the processing unit 210 of the machine tool 200 and supplied with the cutting oil discharged by the oil supply cylinder 20 to the cutting oil discharge pipe 25 to inject the cutting oil; , It includes a switch unit 50 is detachably installed on the machine tool 200 to be turned on / off in accordance with the movement of the operating lever 220 of the machine tool 200, Removable, characterized in that the air flow is supplied to the nozzle unit 40 at the same time the direction switching valve 30 is operated to advance the oil supply cylinder 20 by the on operation of the switch unit 50 Coolant supply. According to claim 1, wherein the nozzle unit 40 is installed in the air discharge pipe 60 directly connected to the air compressor to the air to remove the chips generated in the machine tool 200 when the switch unit 50 is turned off Portable coolant supply device, characterized in that for injecting. The method of claim 1, The nozzle unit 40, The nozzle is installed in the lower portion of the nozzle unit main body 41 is fixed to the machine tool 200, A mobile cutting oil supply device, characterized in that consisting of a nozzle 42 is fixed to the nozzle unit main body (41) to spray the cutting oil to the processing unit 210 of the machine tool 200. The method of claim 1, The switch unit 50, The fixed block 51 is attached to the machine tool 200 detachably attached to the lower portion, A protruding rod 52 protruding from the fixing block 51; Mobile cutting oil supply device, characterized in that made of a micro-switch (53) comprising an adjustment ring (53a) the height is adjusted in the protrusion bar (52).

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