Minimal Quantity Lubrication Oil Mist Supply System for Machining

Abstract

The invention discloses a trace lubricant mist supply system for machining. The trace lubricant mist supply system for machining comprises an atomizing chamber, at least three venturi atomizing nozzles, at least three first air conveying pipes, at least three first control valves, an air booster pump, an air tank, at least three second air conveying pipes, at least three second control valves and a lubricant liquid conveying pipes. The trace lubricant mist supply system can generate micron-size tiny lubricant mist particles, the effect that lubricant mist can overcome the influences of high rotation speed centrifugal force of a cutter and a flow field can be ensured by the pressurization function of the system, the lubricant mist reaches the machining area smoothly through a spindle rotating at a high speed and a cutter inner hole, and the lubricant mist quantity is controlled by controlling the opening or closing combination modes of the venturi atomizing nozzles of different number. Ordinary pressure, pressurized air and three or more venturi atomizing nozzles form different combination opening modes so as to adapt to difference of air quantity and lubricant quantity needed by different inner-cooling hole diameters of a machining center tool magazine, and the trace lubricant mist supply system is suitable for outer-cooling and inner-cooling cutting machining at the same time.

Description

technical field [0001] The invention relates to the technical field of high-speed and high-efficiency green cutting in mechanical processing, in particular to a micro-quantity lubricating oil mist supply system for mechanical processing. Background technique [0002] High-speed cutting technology is a high-performance process technology that has been widely used in aviation, mold, automobile and other industries. During the processing of the traditional cutting fluid cooling method, due to the high-speed rotation of the machine tool spindle, centrifugal force and high-speed flow field flow will be generated around the tool. Under the traditional pouring cooling method, most of the cutting fluid is difficult to enter the cutting area, and it is difficult to achieve the original cooling and lubrication. Effect. In addition, when processing difficult-to-machine materials such as titanium alloys and nickel-based alloys, the temperature of the cutting edge will rise sharply. As...

AI Technical Summary

Problems solved by technology

Since the quenching effect is proportional to the temperature difference, increasing the cutting speed will result in higher temperatures, so increasing the speed will produce a stronger quenching effect and reduce tool life

For coated tools, the coating is rapidly cooled after being subjected to high heat continuously. The coating will cause thermal stress due to thermal shock, which will cause thermal cracks on the surface of the coating, and even part of the coating will peel off. For coated tools Said that this situation will greatly reduce the service life of coated tools

In addition, the recovery rate of cutting fluid after processing is very low, and due to the splashing and vaporization of cutting fluid during processing, the atomized particles of cutting fluid floating in the air will make the surrounding working environment worse and affect the health of workers ; There are chlorine, phosphorus, sulfur and other elements in the cutting fluid. If the cutting fluid is not treated properly, it will cause great pollution to the water source soil

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