JPH06262480A - Automatic supply system for cutting oil to machine tool - Google Patents

Abstract

PURPOSE:To prevent excessive supply of a mist by feeding cutting oil from a tank to a machine tool by a supply oil pipe, and pressurizing oil on the halfway of the supply oil pipe supplied to a mist generating machine, so that the mist can be fine adjusted, in the case of supplying the cutting oil placed in a mist condition to the machine tool. CONSTITUTION:Cutting oil in a cutting oil tank 1 is pumped up through a filter 6 by actuating a supply pump 7, so as to be supplied to each mist generator 9 through a supply oil pipe 8 and a branch pipe of each machine tool. In this mist generator 9, the oil is mixed with supply air and atomized as a cutting oil mist from the point end of a mist nozzle 11 to surfaces of a tool 12 and a workpiece 13 in a lathe 14. An oil level gage 2 and an oil position sensor 14 are additionally provided in the cutting oil tank 1, so as to generate an alarm when a position of the cutting oil in the cutting oil tank 1 is detected to reach a prescribed level or less by the oil position sensor.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention eliminates oil shortage when supplying cutting oil in a mist state to various machine tools such as lathes,
The present invention relates to a cutting oil automatic supply system capable of performing favorable machining.

[0002]

2. Description of the Related Art To supply cutting oil in a mist state to various machine tools such as a lathe, a mist generator mixes the cutting oil and air and supplies the mixture to the machine tool. At this time, conventionally, the cutting oil is supplied from the tank by suction with air from the mist generator.

However, in the case of the conventional supply method, air may be mixed in the suction tube, air may be accumulated, and oil mist may be broken during processing of the work, which may adversely affect the work and the bite. It was Further, in the conventional method in which the cutting oil is sucked and mixed by the air suction in the mist generator, it is difficult to automatically supply the cutting oil to a large number of machine tools. It is required, and improvement is required in terms of processing efficiency and processing control.

An object of the present invention is to provide an automatic cutting oil supply system which eliminates oil mist breakage during machining of a work and enables supply of cutting oil to a plurality of machines.

[0005]

In order to achieve the above object, in the first aspect of the present invention, when the cutting oil is supplied to the machine tool in a mist state, the cutting oil tank is connected to the machine tool midway. The second aspect of the invention is characterized in that the oil is pressurized and the cutting oil is pressure-fed and sent to the mist generator.
A cutting oil supply pipe is branched into a plurality of pipes, the cutting oil is pressure-fed to a plurality of mist generators, and the cutting oil is simultaneously supplied to a plurality of machine tools. Further, in the present invention, an oil level sensor can be provided inside the cutting oil tank.

FIG. 1 shows an embodiment of the present invention. In FIG. 1, reference numeral 1 is a cutting oil tank, the oil level in the tank is confirmed by a liquid level gauge 2, and an oil supply port 3 is used to appropriately check the oil level. Supply cutting oil to maintain proper oil level. An oil level sensor 4 is provided in the tank 1 and detects when the oil in the tank drops below a predetermined position and issues an alarm or the like. The cutting oil from the tank 1 is pressurized to a predetermined pressure, for example, about 0.3 to 0.5 kgf / cm ² by the supply pump 7 via the valve 5 and the filter 6, and the oil supply pipe while confirming the pressure with the pressure gauge 10. 8 to the mist generator 9. The oil supply pipe 8 is branched into a plurality of pipes in the middle of the pipe, and the cutting oil is pressurized and sent to the mist generator 9.

In the mist generator 9, cutting oil from the oil supply pipe 8 and air are mixed and sprayed from the tip of the mist nozzle 11 onto the surface of the cutting tool 12 and the workpiece 13 being processed. In FIG. 1, 14 is a lathe, and 15 is a vacuum chuck.

In the present invention, since the cutting oil is sent under pressure to the mist generator 9 and mixed with air, as in the conventional case where the cutting oil is sucked and mixed by the suction force at the time of sucking air. Air mist breakage due to air mixing is eliminated. Further, the air mist can be simultaneously supplied to a plurality of machine tools by branching the plurality of oil supply pipes. Further, by providing an oil level sensor in the cutting oil tank, it is possible to prevent cutting oil shortage.

[0009]

According to the present invention as described above, since the cutting oil situation is sent under pressure, fine adjustment of the mist becomes possible,
It is possible to reduce the amount of cutting oil used because an excessive mist is not supplied. Further, it becomes possible to supply the cutting oil to a plurality of machine tools at the same time, and the cutting oil can be supplied to the plurality of machine tools by a centralized system, which facilitates management. Furthermore, the oil level sensor eliminates cutting oil shortage and enables stable supply of cutting oil over a long period of time.

[Brief description of drawings]

FIG. 1 schematically shows a cutting oil supply system according to the present invention, and shows an apparatus for collectively supplying cutting oil to a plurality of precision lathes for cutting the surface of an Al alloy magnetic disk substrate.

[Explanation of symbols]

 1 Cutting oil tank 2 Liquid level gauge 3 Oil supply port 4 Oil level sensor 5 Valve 6 Filter 7 Supply pump 8 Oil supply pipe 9 Mist generator 10 Pressure gauge 11 Mist nozzle 12 Byte 13 Workpiece 14 Lathe 15 Vacuum chuck

Claims (3)

[Claims] 1. When supplying cutting oil to a machine tool in a mist state, it is possible to pressurize the oil in the middle of an oil supply pipe for sending the cutting oil from the cutting oil tank to the machine tool and pressurize the cutting oil to the mist generator. Automatic cutting oil supply system to feature machine tools. 2. A system for automatically supplying cutting oil to a machine tool according to claim 1, wherein the cutting oil is pressure-fed simultaneously to a plurality of machine tools. 3. A system for automatically supplying cutting oil to a machine tool according to claim 1, wherein an oil level sensor is provided in the cutting oil tank.