Grinding tool, machining method thereof, grinding and polishing device and grinding method

Abstract

The invention discloses a grinding tool, a machining method thereof, a grinding and polishing device and a grinding method. The grinding tool comprises a carrier, a cooling runner extending from the rear end face to the front end is formed on the carrier, an inlet and an outlet of the cooling runner are located on the rear end face of the carrier, and at least the front end area of the carrier is made of a non-thermal insulation material. The rear end of the carrier is connected with a fluid slip ring. The front end of the carrier is provided with an accommodating space, and the accommodating space is made of a non-thermal insulation material. A freezing grinding material is arranged in the accommodating space. According to the scheme, an external refrigerant supply mechanism can be connected through the fluid slip ring, in the grinding process, refrigerants are continuously supplied into the cooling flow channel to cool and preserve heat of freezing grinding materials, the freezing grinding materials are prevented from being melted due to the temperature in the grinding process, the service life of the freezing grinding materials is prolonged, meanwhile, continuous low-temperature constant-temperature grinding and polishing of the grinding tool are guaranteed, the utilization rate of the grinding material is effectively improved, the mode that a low-temperature environment in the grinding machine is adopted for preventing the freezing grinding material from being melted is not needed, and the operation cost is lower.

Description

technical field [0001] The invention relates to the field of high-precision processing equipment, in particular to abrasive tools, a processing method thereof, a grinding and polishing device and a grinding method. Background technique [0002] Frozen abrasives are suspensions, slurries, or pastes obtained by uniformly mixing abrasives, compatible materials, and liquids that can be solidified into solids, and then frozen into a preset shape for grinding. Usually the grinding tool is placed in the mold outside the grinding machine to freeze the suspension, slurry or paste, and then demolded, and then the grinding tool is installed on the grinding machine for use. For example, the application number is 2006100411080, and the title is the technology disclosed in "a frozen mold and its preparation method". [0003] Frozen abrasives can be easily made into various shapes, and the grinding heat is very small, which is conducive to preventing thermal stress and can effectively mee...

AI Technical Summary

Problems solved by technology

[0003] Frozen abrasives can be easily made into various shapes, and the grinding heat is very small, which is conducive to preventing thermal stress and can effectively meet the needs of high-precision grinding. However, when grinding, the frozen abrasives formed by freezing will melt due to the influence of temperature The situation affects the service life and stability of use, and it is difficult to achieve continuous and stable online grinding

[0004] In addition, during the processing of abrasive tools, the mixture obtained by mixing abrasives, additives and liquids is usually directly added to the mold for freezing. This processing method has low freezing efficiency, and there may be differences in the degree of solidification inside and outside the frozen material. At the same time, due to freezing For a long time, it is prone to the problem of abrasive settlement and delamination, thus greatly affecting the effective use of frozen abrasives

[0005] In addition, the existing grinding tool processing method is to obtain the grinding tool by freezing the model outside the grinding machine, and then install it in the grinding machine after removing the film, and the low temperature grinding tool is not conducive to handling and installation. More importantly, when the frozen abrasive After use, the grinding tool needs to be disassembled and replaced, which is cumbersome and inefficient.

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