METHOD FOR CENTRES VERITY OF ROUND- GRINDING MACHINE

The method is used for verifying the centres of a round-grinding machine after readjustment of the position of the tail stock on the longitudinal table of the round-grinding machine. Using this method allows automatic readjustment of the machine when changing the length of the processed details without interruption. It ensures higher accuracy and increased productivity. The method includes the consecutive grinding of two equal steps of a detail fixed between the centres, as the first step is being cut-in grinded through a cross feed of the grinding disc till the final dimension is reached at the signal of a broad range device for active control (WDAC). After that the back centre shifts in a direction away from the grinding wheel, and the longitudinal table shifts leftwards till the jaws of WDAC are in the middle of the contact of the back centre and the central hole of the detail. By this the cross position of the grinding wheel remains unchanged and a fine cut-in grinding of the final right step is performed through the cross feed of the back centre towards the grinding disc till a signal from WDAC is received when reaching the same size as the one of the final left step.