A method and system for precise proportioning of cutting fluid based on information feedback

Abstract

The invention discloses a cutting fluid precise proportioning method and system based on information feedback. The method realizes the control of the opening time of the electromagnetic valve through the detection of the liquid concentration and liquid level, and effectively realizes full-automatic without manual intervention. Precise ratio of cutting fluid. The system includes a cutting fluid tank, a waste liquid tank, a cutting raw liquid unit, a tap water unit, a solenoid valve, a concentration detector, and a liquid level detector. The top of the cutting fluid tank is respectively connected to the cutting raw fluid unit and the tap water unit through a flow valve; The inside of the cutting fluid tank is provided with a concentration detector and a liquid level detector respectively. The concentration detector is arranged at the bottom of the cutting fluid tank, and the bottom of the cutting fluid tank communicates with the waste liquid tank through a flow valve. The invention can realize a more comprehensive grasp of the real-time dynamic changes of the cutting fluid, effectively realizes the precise proportioning of the cutting fluid fully automatic without manual intervention, and improves the comprehensive utilization rate of the equipment.

Description

technical field [0001] The invention belongs to the technical field of precise proportioning of cutting fluid, and in particular relates to a method and system for precise proportioning of cutting fluid based on information feedback. Background technique [0002] CNC machine tools are the most important processing equipment in the equipment manufacturing industry. They are widely used in aviation, aerospace, ships, automobile molds and other fields, and are known as "industrial mother machines". Machine tool cutting fluid is an important auxiliary part of CNC machine tools. It can reduce cutting heat, clean the surface of parts, lubricate and prevent rust during processing, so as to ensure the quality of processed parts. Since the chips generated during the cutting process of the CNC machine tool will take away a large amount of cutting fluid, and there are situations such as leakage and volatilization, the capacity and concentration of the cutting fluid will decline linearl...

AI Technical Summary

Problems solved by technology

[0003] For a long time, the ratio and addition of cutting fluid for CNC machine tools has been completely dependent on manual work. The operator first uses a concentration detector to detect the concentration, and then empirically adds mother liquor and tap water according to the remaining capacity of the cutting fluid tank. If the number of CNC machine tools More, the process of adding cutting fluid is not only time-consuming but also consumes a lot of manpower and material resources

In this regard, Liu Zhijian proposed a vacuum negative pressure cutting fluid proportioning device (Patent No. ZL201721274413.4), but manual intervention is still required to open the control valve and other operations, and after a period of use, the cutting fluid tank cannot be guaranteed. The concentration is in the appropriate range

Park Bingxi proposed a water-soluble cutting fluid automatic supply control system (patent number ZL201580002743.5), which can only provide accurate cutting fluid ratio before use, but cannot effectively reflect the concentration change in the actual fluid tank. The concentration of the solution is reduced, and the concentration before the addition is not reasonable

Moreover, for logic control, the CNC system itself has extremely powerful computing functions, so the central processing unit selected by this method also greatly increases the cost of use.

[0004] At present, the numerical control system can give an alarm for the liquid level in the cutting fluid tank, but it lacks the detection of the concentration and the automatic rationing of the cutting fluid

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