A method for active thermal balance temperature control of electric spindle
An electric spindle and heat balance technology, applied in non-electric variable control, temperature control, control/regulation system, etc., can solve the problem of not being able to meet the heat balance processing process of the electric spindle, and achieve the effect of improving the machining accuracy
Active Publication Date: 2015-08-05
BEIJING UNIV OF TECH
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Problems solved by technology
This method can only quantitatively take away the heat of the spindle, and conduct steady cooling on the temperature of the spindle temperature field, which cannot meet the purpose of quickly reaching the thermal balance of the electric spindle and keeping the entire machining process in a thermally balanced process.
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[0026] A method for active heat balance of an electric spindle disclosed in the present invention will be further described below in conjunction with the accompanying drawings and implementation operations.
[0027] The electric spindle heat balance mathematical model, the water temperature range set by the temperature control device, and the temperature set by the heat balance rotor are pre-stored in the industrial controller 9 . according to figure 1 Connect the real thing. After the electric spindle starts, it will take a while for the temperature of the rotor 2 to rise to the thermal equilibrium state. During this temperature rise process, the electric spindle thermally deforms seriously. In order to make the electric spindle system reach thermal equilibrium quickly, the temperature acquisition card 8 collects water temperature sensor 5. The measured water temperature value in the spiral channel 4 and the temperature value of the rotor 2 measured by the miniature infrared ...
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The invention relates to an electric spindle active thermal balance temperature control device and a temperature control method, which belongs to the field of mechanical design and manufacturing. A temperature acquisition card is connected with a water temperature sensor, and the water temperature sensor is connected with a spiral water channel of an electric spindle to acquire medium temperature in the spiral water channel; the temperature acquisition card is connected with a micro infrared sensor, and the micro infrared sensor is installed on a rotor of the electric spindle to acquire rotor temperature of an electric spindle system; a computer is connected with the temperature acquisition card and an industrial controller to display data; the industrial controller is connected with temperature control equipment, the control end of the temperature control equipment is connected to the spiral water channel of the electric spindle to control the temperature of a medium input into the spiral water channel; the industrial controller is connected with a water pump to control parameters of the water pump so as to control the medium flow in the spiral water channel; and one output way of the temperature control equipment is connected with the water pump. By using the temperature control device and the temperature control method, dynamic thermal balance of the electric spindle is kept during processing, therefore, the processing precision is improved, and the service life of the spindle system is prolonged.
Description
Technical field: [0001] The invention discloses an active heat balance temperature control method of an electric spindle. The method is based on a heat balance mathematical model, and by adjusting the medium temperature and flow rate of the spiral water channel of the electric spindle, the electric spindle can quickly reach heat balance and maintain dynamic heat balance during processing. An intelligent miniature infrared thermal imaging sensor is used to collect the internal temperature of the spindle system. Adopting this method has the advantage of not being affected by factors such as processing environment, processing heat source, and parts materials. The invention belongs to the field of mechanical design and manufacture. Background technique: [0002] During the start-stop and operation of the high-speed electric spindle, due to the inconsistency of the heat source of the electric spindle of the machine tool and the complexity of processing conditions, heat dissipati...
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Inventor 蔡力钢卓旭杨勇赵永胜刘志峰
Owner BEIJING UNIV OF TECH