Grinding and polishing machine

Abstract

The invention discloses a grinding and polishing machine. The grinding and polishing machine comprises a rack, a work table installed on the middle part of the rack in the up-and-down direction, a polishing disk rotatably installed on the work table, a first drive assembly used for driving the polishing disk to rotate around the own axis, polishing cloth attached to the upper surface of the polishing disk, a locking piece coaxial with the polishing disk and a clamp installed on the rack, located above the work table and used for clamping workpieces; a clamping part is outwards reserved on theperiphery of the polishing disk through the polishing cloth; and the locking piece comprises a pressing ring part, a sleeve part and a connecting part for connecting the pressing ring part and the sleeve part, the pressing ring part presses the periphery of the part, located on the upper surface of the polishing disk, of the polishing cloth, the sleeve part is installed on the polishing disc in asleeving manner and used for clamping the clamping portion between the sleeve part and the side face of the polishing disk, the pressure ring part is provided with a first flow guide groove in the radial direction, and the sleeve part is internally provided with a second flow guide groove. By means of the grinding and polishing machine, the polishing cloth is easily fixed, and the fixing reliability is relatively good.

Description

technical field [0001] The invention relates to a grinding and polishing machine. Background technique [0002] Grinding machines are also called polishing machines, but they are collectively referred to as grinding and polishing machines in more applications. The grinding and polishing process is a commonly used surface processing technology at present, and the grinding and polishing machine is mainly divided into two types according to the movement mode of the polishing parts. One is the grinding and polishing machine based on the rotating motion of the polishing disc, and the other is based on the The grinding and polishing machine with linear movement of sandpaper, because the linear movement is mainly driven by the screw nut mechanism, the speed is very low, usually lower than 0.5m / s, and the grinding and polishing efficiency is extremely low. At present, the most widely used is still the former one, that is, the grinding and polishing machine based on the rotating mot...

AI Technical Summary

Problems solved by technology

It is understandable that the polishing cloth is relatively thick and its texture is relatively hard compared to cotton cloth, and wrinkles will occur after being folded. This requires consideration of the appropriate size of the gap between the collar and the grinding disc. It is actually difficult to determine a suitable reserved gap for the mating of the smooth surfaces between the grinding discs, which also causes the problem that the fixing force of different polishing cloth collars and grinding discs is different, and even cannot be effectively fixed

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