Sequence of attention when checking and repairing automatic polishing machines

         Automatic polishing machine equipment itself electric control cabinet of the total circuit breaker disconnect, and then disconnect the miniature circuit breaker of each circuit respectively. Control contactor due to the equipment work, frequent on and off, visual inspection of a must safeguard the contact contact is good, the terminals are not allowed to loose, as the protection of the motor of the thermal relay current as a whole should be appropriate, in line with the protection requirements. Because, the frequency converter is installed in the electronic control cabinet, for the cloth wheel motor power drive device, is composed of semiconductor devices as the center of the static equipment, temperature, dust, vibration and other use of the environment will affect the aging of the product and the life, therefore, must ensure that the electronic control cabinet is clean, clean and dust-free. So every weekends should be electronic control cabinet for cleaning and maintenance, generally use the skin tiger blowing away the dust in the inverter.

　　Before the automatic polishing machine polishing, you need to adjust the distance between the polishing head and the worktable, in order to achieve a good contact effect, throw a good effect. Hand waxing can be used in the polishing process to reduce the cost of machine making.

　　Polishing machine polishing, the specimen grinding surface and polishing disk should be parallel and uniformly light pressure on the polishing disk, pay attention to prevent the specimen fly out and due to too much pressure to produce new wear marks. Automatic polishing machine at the same time should also make the specimen spin and move back and forth along the direction of the radius of the carousel, in order to avoid localized wear and tear of the polishing fabric too fast. In the polishing process should constantly add micro-powder suspension or polishing wax, to make the polishing fabric to maintain a certain degree of humidity. Humidity is too large to weaken the polishing of the abrasive effect, so that the hard phase in the sample presents convex and non-metallic inclusions in steel and cast iron graphite phase produces “trailing” phenomenon; humidity is too small, due to friction heat will make the sample warming, lubrication is reduced, the grinding surface loses its luster, and even black spots, light alloy will be thrown hurt the surface. In order to achieve the purpose of rough polishing, polishing time should be longer than the time required to remove the scratch, because also remove the deformation layer.