Tool Holder Suitable for Hybrid Cryogenic Minimum Quantity Lubrication

摘要

The invention provides a tool holder suitable for cryogenic minimum quantity lubrication, which belongs to the technical field of cooling and lubrication of numerical control machine tools. The device comprises a toolholder body, a peripheral static structure, a multilayer sealing structure, a heat insulation structure, and a bearing support structure. The invention solves the problems of insufficient cooling performance in the micro-lubrication technology and insufficient lubrication in the cryogenic cooling machining technology, and integrates the oxygen insulation protection effect of the cryogenic medium, the cooling effect of the cryogenic medium, and the friction reduction and lubrication effect of the micro-lubrication. It has a good processing effect on difficult-to-cut materials. The invention can be used for machining difficult-to-cut materials with traditional numerical control machine tools, expands the application range of external to internal cooling tool holders, effectively reduces the cutting heat of difficult-to-cut materials in cutting processing, improves tool life, and replaces traditional cutting fluids to achieve green manufacturing.