Precise temperature control method for oil source of ultra precision machine tool pump station

An ultra-precision machine tool and oil source technology, applied in metal processing machinery parts, maintenance and safety accessories, metal processing equipment, etc., can solve the problems of inability to realize precise control of oil source temperature, temperature fluctuation of refrigerator, unfavorable system stability, etc. , to achieve the effect of stabilizing temperature fluctuations, reducing temperature overshoot, and avoiding frequent start and stop

Inactive Publication Date: 2018-04-17
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current oil temperature control mainly heats or cools the oil source through heaters or refrigeration coils, and the temperature overshoot is too large to achieve precise control of the oil source temperature; in addition, frequent start and stop of the refrigerator will also bring large Temperature fluctuations are not conducive to maintaining system stability

Method used

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  • Precise temperature control method for oil source of ultra precision machine tool pump station

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Experimental program
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Embodiment

[0028] 1. Set the oil source temperature of the fuel tank: according to the processing accuracy requirements of the ultra-precision machine tool, set the preset value of the oil source temperature through the controller 5 to 20°C;

[0029] 2. Oil source temperature detection of the fuel tank: the temperature sensor 2 detects that the actual value of the oil source temperature of the fuel tank is 21°C, and the controller 5 compares the actual value with the preset value, and obtains the difference between the actual value minus the preset value as 1°C, according to the difference, the current state of the oil source temperature of the fuel tank is determined to be an overheated state;

[0030] 3. Control the oil source temperature of the fuel tank: At this time, the oil source temperature of the fuel tank is in an overheated state. The controller 5 starts the refrigeration unit 6 through the temperature control unit 4 to cool the oil source temperature of the fuel tank. When it ...

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Abstract

The invention belongs to an oil source temperature control method, and relates to a precise temperature control method for an oil source of an ultra precision machine tool pump station. The precise temperature control method comprises the following steps that the oil source temperature of an oil tank is set; the oil source temperature of the oil tank is detected; and the oil source temperature ofthe oil tank is adjusted and controlled. According to the precise temperature control method for the oil source of the ultra precision machine tool pump station, temperature overshoot is reduced, andprecise controlling over the oil source temperature is achieved; and in addition, frequent starting and stopping of a refrigerator are avoided, temperature fluctuation is stabilized, and stability oftemperature control is improved.

Description

technical field [0001] The invention belongs to an oil source temperature control method, and relates to an ultra-precision machine tool pump station oil source precision temperature control method. Background technique [0002] The main shaft bearing of a large ultra-precision vertical lathe adopts a hydrostatic thrust bearing, and the sliding guide rail adopts a hydrostatic support method. The hydrostatic support makes the mating surface separated by an oil film and is in a state of complete liquid lubrication. The support rigidity and stability are the same as The stiffness of the oil film is closely related. During the working process, the hydrostatic oil will cause its own viscosity change and the bearing capacity of the oil film due to the heat generated by the internal friction of the fluid during the working process, which may affect the stability of the machine tool spindle and guide rail movement. On the other hand, the temperature of the hydraulic oil The thermal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/14
CPCB23Q11/143
Inventor 罗松保庞信韩海涛庞长涛杜海涛徐昌语张立斌鲍龙祥申珅金秀梅孙永春王莉平
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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