Liquid nitrogen continuous supply device and method for ultra-low temperature cutting

Abstract

The invention discloses a continuous liquid nitrogen supply device and method for ultralow temperature cutting. The provided continuous liquid nitrogen supply device for ultralow temperature cutting comprises a first self-pressurization liquid nitrogen supply system, a second self-pressurization liquid nitrogen supply system, a first weighing system, a second weighing system, a control system, a first ultralow temperature electromagnetic reversing valve, a second ultralow temperature electromagnetic reversing valve, a first one-way valve, a second one-way valve and a three-way valve; the first self-pressurization liquid nitrogen supply system and the second self-pressurization liquid nitrogen supply system are placed on the first weighing system and the second weighing system correspondingly, connected with the control system through wires and connected with the first ultralow temperature electromagnetic reversing valve, the second ultralow temperature electromagnetic reversing valve, the first one-way valve, the second one-way valve and the three-way valve through conveying pipelines, and the first ultralow temperature electromagnetic reversing valve and the second ultralow temperature electromagnetic reversing valve are connected with the control system through wires.

Description

technical field [0001] The invention relates to a continuous supply method of ultra-low temperature cutting cooling medium, in particular to a continuous supply method and device of liquid nitrogen. Background technique [0002] In recent years, the rapid development of high-performance processing technology has made it possible to process high-speed, high-efficiency, and precise mechanical products. However, how to further tap the potential of machine tools and cutting tools under the existing technical level of machine tools and cutting tools is still a technical problem in the industry. A large number of research and application examples show that effective cooling and lubrication is the main technical way to further improve the processing quality and processing efficiency of difficult-to-machine materials. [0003] Cryogenic cutting has always been considered as one of the important technical means to achieve green, efficient and high-quality machining of difficult-to-m...

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Problems solved by technology

[0008] The problem solved by the present invention is that it is impossible to provide a continuous liquid nitrogen supply method and device for ultra-low temperature cutting in the prior art; in order to solve the problem, the present invention provides a continuous liquid nitrogen supply method and device for ultra-low temperature cutting

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