Online testing apparatus for polishing plastic disc of large-scale ring polishing machine

Abstract

Provided is an online testing apparatus for a polishing plastic disc of a large-scale ring polishing machine. The online testing apparatus includes a laser; a focusing lens, a central hole of a first reflector and a second reflector which are sequentially arranged along the direction of a laser beam emitted from the laser; a first standard lens and a second standard lens which are sequentially arranged along the direction of a reflected light of the second reflector; and a reading screen arranged in the direction of a reflected light of the first reflector and a displacement micrometer arranged on the reading screen. The online testing apparatus can visually and accurately test a polishing plastic disc of a large-scale ring polishing machine on line, the work efficiency is greatly raised; the online testing apparatus is simple in structure, convenient in operation, stable and reliable, comparative high in precision; and not only security during carrying workpieces is ensured, but also damage to workpiece surfaces caused by external impurities is prevented.

Description

technical field [0001] The invention relates to a large ring polishing machine, in particular to an online detection device for a polishing rubber plate of a large ring polishing machine. Background technique [0002] Ring polishing machine is almost the only large-caliber, global planar optical element processing technology in the world at present. It rotates the workpiece to be polished relative to the polishing rubber disc under a certain pressure and the presence of polishing liquid. The mechanical grinding action and the corrosive action of chemical oxidants complete the material removal on the surface of the workpiece and obtain a smooth surface. Compared with other technologies, this technology can simultaneously achieve local and global planarization of large-diameter workpieces, eliminate high points and waves on the surface of workpieces, eliminate high-frequency defects, and achieve ultra-smooth surface processing quality; planarization The speed is fast, the pro...

AI Technical Summary

Problems solved by technology

This method is time-consuming and labor-intensive, and it also increases the danger in the process of workpiece handling

Furthermore, since the workpiece processed by the large-scale ring polishing machine is large in size, heavy in weight, and has a smooth surface, it is very inconvenient for workers to carry it, and the labor intensity is relatively high, which is very likely to cause injury to workers

Images