A liquid nitrogen internal injection type CNC drilling and milling machine gas regulating system

Abstract

The invention belongs to the technical field of adjusting systems, and particularly relates to a liquid nitrogen inner-spraying type digital control milling and drilling machine gas adjusting system.The liquid nitrogen inner-spraying type digital control milling and drilling machine gas adjusting system includes a humidity tester in a drilling and milling machine cabin, a nitrogen concentration monitor in the drilling and milling machine cabin, a dryer in the drilling and milling cabin, a controller, an exhaust fan, a direct discharging control valve, a flow speed control valve and a dust removing mechanism. According to structural key points of the liquid nitrogen inner-spraying type digital control milling and drilling machine gas adjusting system, an alarm signal output port of the humidity tester is connected with an alarm signal input port of a humidity alarm, and an alarm signal output port of the nitrogen concentration monitor is connected with an alarm signal input port of a nitrogen concentration alarm.

Description

technical field [0001] The invention belongs to the technical field of regulating systems, and in particular relates to a gas regulating system of a liquid nitrogen internal spray type numerical control drilling and milling machine. Background technique [0002] With the continuous development of modern manufacturing industry, the use of CNC machine tools to precisely process difficult-to-machine materials and complex structural parts has become common, and the importance of precision machining technology has become increasingly prominent. As an important equipment in the manufacturing industry, CNC machine tools are also facing opportunities and challenges in the new era. Improving the stability of CNC machine tool machining accuracy, processing efficiency, and reducing tool wear are the key to improving the quality of CNC machine tool products and enhancing market competitiveness. Utilizing the physical and chemical properties of materials at low temperatures, the cutting...

AI Technical Summary

Problems solved by technology

Although the combination of the cutting fluid system and the spindle makes it possible for the complex structure of the inner cavity of the workpiece to be cut with liquid nitrogen at low temperature and precision

However, the thermal insulation effect has a great influence on the reliable operation of the system. It is inevitable that there will be heat conduction in the parts with poor thermal insulation effect, resulting in the cooling of the spindle parts, icing and frosting, which will affect the normal operation of the spindle and the clamping operation of the tool. , reducing the machining accuracy and production efficiency

At the same time, the gasification of the liquid nitrogen sprayed from the pores near the cutting edge increases the nitrogen concentration in the protective chamber of the machine tool after gasification, which exceeds the concentration of nitrogen in the air that humans breathe. as a result of

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