A liquid nitrogen internal spray knife handle device

Abstract

The invention provides a liquid nitrogen inner spraying type cutter handle device, belongs to the design field of machine tools, and relates to a machine tool cutter handle device which achieves the purpose of cold low-temperature cutting through the fact that liquid nitrogen flows in an inner cavity of a cutter handle to a fine hole near a cutting edge of a hollow cutter rod to be sprayed out. The liquid nitrogen inner spraying type cutter handle device is composed of a left cutter handle peripheral assembly, a right cutter handle peripheral assembly and a cutter handle assembly. The left cutter handle peripheral assembly and the right cutter handle peripheral assembly are sequentially arranged on the outer circular face of the cutter handle and are locked by end nuts. In the liquid nitrogen inner spraying type cutter handle device, the surfaces of parts in contact with the liquid nitrogen are subjected to heat insulation material modified treatment, and the heat transferring capacity of the parts is lowered. The liquid nitrogen inner spraying type cutter handle device solves the problem that liquid nitrogen conveying is inconvenient for a workpiece with a complex structure in an existing outer spraying type liquid nitrogen cutting liquid device. The defect that the liquid nitrogen is low in utilization rate is overcome, the purpose that a common built-in type cutting liquid system achieves inner spraying of liquid nitrogen cutting liquid is achieved, the machining precision of difficult-to-machine materials machined by a machine tool is guaranteed, and the machining range of a numerical control machine tool is widened.

Description

technical field [0001] The invention belongs to the field of machine tool tool design, and relates to a machine tool tool handle device that circulates liquid nitrogen through the inner cavity of the tool handle until it is sprayed out from fine holes near the cutting edge of a hollow tool rod to realize cryogenic cutting. Background technique [0002] At present, it is very common to use CNC machine tools to precisely process difficult-to-machine materials and complex structural parts, and the importance of precision machining technology in industrial production 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. Therefore, improving the machining accuracy stability and machining efficiency of CNC machine tools and reducing tool wear are the key to improving the product quality of CNC machine tools and enhancing market competitiveness. The problem of impro...

AI Technical Summary

Problems solved by technology

This device can overcome the limitation that the current medium and low-end CNC equipment cannot perform internal cooling processing. However, this device can only use conventional cutting fluid as the cooling liquid, and the sealing effect is not very ideal, and it cannot realize the cryogenic processing function of liquid nitrogen cooling. It cannot meet the requirements of processing difficult-to-cut materials, ensuring cutting accuracy, and improving tool life

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