Polishing device and manufacturing method

Abstract

The invention relates to a polishing device and a manufacturing method. The polishing device comprises a plurality of elastic thin-sheet teeth which are spliced and overlaid in sequence to form an annular structure; every two adjacent elastic thin-sheet teeth are closely matched with each other in an abutting mode; the upper end surface or the annular side surface of the annular structure is a grinding work surface; and the grinding work surface is of an annular sawtooth-shaped structure. According to the polishing device and the manufacturing method, the cooling effect is good, and the chip removal effect is good; micro intermittent grinding is achieved for polishing, the polishing efficiency is high, and high-speed high-efficiency machining is facilitated; and meanwhile the difficulty ofa machining process of the polishing device is low, and batch production is facilitated.

Description

technical field [0001] The invention relates to the technical field of abrasive tools, in particular to a polishing device and a manufacturing method for edge polishing. Background technique [0002] The polishing wheel for edge polishing mainly adopts resin bond and rubber bond. Resin-bonded abrasives have high strength, good elasticity, poor heat resistance, and good self-excitation, but have small porosity, are easy to block, wear quickly, and are easy to lose their profile. Rubber bonded abrasives have higher strength and elasticity, smaller porosity, and poor heat resistance. The temperature resistance of the above-mentioned binder is poor, and the strength of the binder will drop sharply with the increase of temperature, and it is easy to cause softening, melting and carbonization and other destructive structural changes, which directly lead to the failure of the performance of the abrasive tool, such as abrasive shedding and sharpness. , The binder softens and melts...

AI Technical Summary

Problems solved by technology

However, there are still some problems in using this method to cool the abrasive tool: when the coolant is cooled, the cooling effect on the abrasive tool with a bond whose temperature resistance is lower than 200°C is not ideal; for the abrasive tool with a relatively large grinding contact area In the environment, such as a cup-shaped polishing wheel, the contact surface is large; the coolant cannot enter the working surface well, resulting in poor cooling effect; for the bond material itself, it is a poor conductor of heat, which causes it to lose heat during the grinding process. The high temperature generated locally by the abrasive cannot be transmitted quickly to form a heat dissipation effect, so the local high temperature will also greatly affect the transition zone properties of the abrasive and the bond, and the poor combination of the abrasive and the bond will directly lead to a sharp decline in the performance of the abrasive tool

In high-speed and high-efficiency machining, it is necessary to improve the grinding ability, which requires better ability to hold abrasives, and at the same time requires better cooling. Increasing elasticity and porosity is not conducive to life and rigidity. The interaction between various factors Constraints, thus limiting the application of high-speed and high-efficiency machining

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