Radial pin type grinding and polishing disc assembly of metallographic grinding and polishing machine

Abstract

The utility model relates to a radial spring pin type grinding and polishing disc assembly of a metallographic grinding and polishing machine. The main purpose of the invention is to provide a grinding and polishing disc assembly used in a metallographic grinding and polishing machine, so as to realize the common functions of pre-grinding and polishing. It is characterized in that: the grinding and polishing disc includes 1 disc body, 4 springs, 4 retaining sleeves, 4 ejector pins, and 1 pressure ring; the ring removal tool is assembled by 1 elastic frame and 4 push heads; the disc body It is the main body of the grinding and polishing disc, and the spring is a compression spring, which is installed on the inner side of the radial step hole of the disc body. ;The ejector pin is a cylinder with chamfered ends, which is installed in the radial stepped hole of the disc body, and is used to lock the pressure ring; the spring, retaining sleeve, and ejector pin form 4 sets of locking mechanisms, which are installed in the disc body In the 4 radially stepped holes, the ejector pin is used to pop out and lock the pressure ring; the pressure ring is a circular ring body, which is used to hold down the water sandpaper or polishing flannelette; the ring removal tool is used to disassemble the grinding and polishing disc. Press the ring to replace the water sandpaper or polishing cloth.

Description

technical field [0001] The invention relates to a radial spring pin type universal grinding and polishing disc component applied to a metallographic grinding and polishing machine. Background technique [0002] Metallographic specimens are prepared using a metallographic grinding and polishing machine, which uses a motor to drive a pre-grinding disc or a polishing disc to rotate at high speed to grind the specimen. The disc-shaped main structure of the pre-grinding disc and the polishing disc is roughly the same, but there are differences in the mounting of the grinding and polishing bodies and their fixing methods. Conventional pre-grinding discs use water sandpaper to grind the specimen. The pre-grinding disc mainly relies on the adhesion force between the water sandpaper and the disc surface to fix the water sandpaper, and the edge of the pre-grinding disc has a convex edge to restrain the water sandpaper to prevent its radial movement. move. The conventional polishing ...

Images