Evaluation method and monitoring device for effectiveness of static minimal quantity lubrication

• Main Authors: MING WEIWEI, CHEN MING, LI CHAO, AN KYOUNG-LYONG, XU JINYANG, LI LINFENG, LIN TIEYU
• Format: Patent
• Language: Chinese; English
• Published: 04.10.2022
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PHYSICS; TARIFF METERING APPARATUS; TESTING; TRANSPORTING

The invention relates to an evaluation method and a monitoring device for effectiveness of static minimal quantity lubrication, and the evaluation method comprises the following steps: collecting the pH value of a cutting fluid, the flow q, the temperature T, the concentration value resistivity rho, the TDS value TDS, the residual oxygen RO, the turbidity NTU, the static minimal quantity lubrication voltage V and the cutting fluid aerial fog concentration value omega, and respectively substituting the parameters into a formula to calculate cooling and lubrication failure coefficients; when the corresponding coefficient exceeds 1, it is judged that cooling or lubricating fails; on the contrary, failure does not occur; the monitoring device comprises an electrostatic voltage sensor, a cutting fluid aerial fog concentration value sensor and a monitoring sensor box comprising a pH value sensor, a flow sensor, a temperature sensor, a concentration value sensor, a resistivity sensor, a TDS value sensor, a residual