Automatic tool setting method and device for precision dressing of grinding wheel

Abstract

The invention discloses an automatic tool setting method and device for precision trimming of a grinding wheel. The automatic tool setting method for precision trimming of the grinding wheel comprises the following steps of firstly, acquiring heights of all points on the surface of a grinding wheel to be trimmed relative to the zero point of a sensor by using the sensor to determine the highest point on the surface of the grinding wheel to be trimmed; secondly, rotating the highest point of the grinding wheel to be trimmed to a position relative to a trimmer in a feeding direction; and thirdly, moving the grinding wheel to be trimmed along the feeding direction until the distance between the highest point of the grinding wheel to be trimmed and the trimmer on the axis of the feeding direction is zero and the position is used as a feeding starting point. The automatic tool setting method actually means a tool setting way for the whole grinding wheel to be trimmed by directly taking the highest point of the grinding wheel to be trimmed as a base point, by which tool setting by using the highest point on the surface of the grinding wheel can be precisely realized to ensure that the grinding wheel to be trimmed is fed from the highest point on the surface in the trimming and grinding processes, so that the tool setting precision of the grinding wheel to be trimmed is improved.

Description

technical field [0001] The invention relates to an automatic tool setting method and device for precision dressing of a grinding wheel. Background technique [0002] At present, grinding wheel dressing is a necessary means to ensure the ideal size, surface profile and shape of the grinding wheel in the manufacture and application of the grinding wheel. The purpose is to obtain good precision and grinding performance on the surface of the grinding wheel. However, for electroplating and brazing superabrasive grinding wheels, since there is only a single layer of abrasive on the surface of the grinding wheel, the exposed height of the abrasive grains is uneven, and there is often eccentricity of the grinding wheel during the manufacturing process, so the dressing of the surface of the single-layer abrasive grinding wheel should be I cherish it even more, and hope that the grinding wheel dressing will be more sensitive to the tool setting and the tool setting accuracy will be hi...

AI Technical Summary

Problems solved by technology

However, in this process, when the grinding wheel reaches the tool setting position under the condition of high-speed rotation, assuming that the outer circle of the grinding wheel is a true circle, it is difficult to determine whether the grinding wheel is at the highest point of contact with the grinding wheel dresser at the starting point of the tool feed, and it is impossible to achieve The precise tool setting of the grinding wheel reduces the accuracy of grinding wheel dressing, especially not suitable for tool setting of single-layer abrasive grinding wheels

At the same time, the ultrasonic sensor is easily affected by environmental noise in the process of signal collection, and there is no mature de-drying technology at home and abroad, so the ultrasonic signal collected by the ultrasonic sensor has the problem of low precision, which makes the centering of the grinding wheel more accurate reduced

Images