Parameterization regulation and control system and method for metal cutting machining cooling gas jet
A technology of cooling gas and regulating system, which is applied to controllers with specific characteristics, electric controllers, etc., can solve the problems of low efficiency, difficult parameterization and quantitative adjustment, and inability to cut the best cooling effect, so as to reduce the impact and improve the Stability, to achieve the effect of self-feedback adjustment
Active Publication Date: 2021-08-10
HEFEI UNIV OF TECH
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Problems solved by technology
Up to now, when using external cooling gas cooling equipment, the operator usually manually adjusts the distance between the nozzle and the cutting area through trial processing or experience. This method is inefficient and difficult to parameterize and quantitatively adjust, and the cutting cooling effect cannot be optimized. , it is also difficult to obtain high-quality part surface
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[0049] In this example, if figure 1 As shown, a parameterized control system for cooling gas jets in metal cutting, including: computer PID control system, electric slide 1, constant pressure valve 2, mass flow controller 3, nozzle 4, infrared temperature sensor 5. Adjustable nozzle bracket 6 and adjustable infrared temperature sensor bracket 7;
[0050] On the upper table 1-1 of the electric sliding table 1, the constant pressure valve 2 and the mass flow controller 3 are respectively fixed by bolts; the infrared temperature sensor 5 and the nozzle 4 are respectively fixed on the adjustable infrared temperature sensor bracket 7 and the adjustable type nozzle holder 6; such as figure 2 As shown, the adjustable nozzle bracket 6 is provided with a U-shaped nozzle bracket 9 on the fixed end 10 of the nozzle bracket, wherein the U-shaped nozzle bracket 9 can adjust the relative angle relative to the fixed end 10 of the nozzle bracket. The middle of 9 is rotationally connected w...
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The invention discloses a parameterization regulation and control system and method for metal cutting machining cooling gas jet. The system is composed of a nozzle body, a pressure stabilizing constant value valve, a mass flow controller, an infrared temperature sensor, an electric sliding table and a PID controller. The electric sliding table is fixed to a proper position of a machine tool, and the infrared temperature sensor is used for monitoring the temperature of a certain point position on a workpiece in real time so as to reflect the heat exchange effect. When environmental factors, gas supply factors, process factors, machine tool factors and the like change, the temperature measurement value is compared with an expected value by the PID controller in combination with the established parameterized model, so that feedback control of the temperature is realized. According to the invention, the pressure-stabilizing constant value valve is introduced to carry out pressure-stabilizing regulation on the cooling gas before entering the nozzle, and the mass flow controller is introduced to regulate the instantaneous mass flow of the cooling gas at the inlet of the nozzle according to different cutting environments and conditions.
Description
technical field [0001] The present invention relates to the field of automatic regulation and control of optimal cooling of the cutting zone during the metal cutting process; specifically, it is a parameterized control system for metal cutting cooling gas jets and parameterization of the cooling gas inside the nozzle Modeling and regulation system and method, so as to ensure that the temperature of a certain point of the workpiece is controllable during cutting, so that the temperature reaches the expected temperature according to the process requirements, and indirectly evaluate the cooling effect, so as to realize the closed-loop feedback control and automation of temperature adjust. Background technique [0002] During metal cutting, it is necessary to cool and lubricate the cutting tool and cutting area to achieve the purpose of prolonging tool life, ensuring processing quality, and improving processing efficiency. [0003] According to different cooling methods, metal ...
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Login to View More IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 朱利斌王英刘帅帅黄海鸿刘志峰
Owner HEFEI UNIV OF TECH