Belt-finishing device and method for operating a belt-finishing device

The invention relates to a belt-finishing device (10) comprising a frame (12) for mounting a pressing arm (14), in particular pivotally, a pressing element (29), which is used to press a finishing belt (36) against a workpiece surface (40) to be treated, being arranged on the pressing arm (14). The device is provided with a position detection system (62) for detecting a pressing-arm actual position (14) that deviates from a desired position of the pressing arm (14). A malfunction or defect of the pressing element (29) is detected by means of the pressing-arm (14) actual position that deviates from the desired position of the pressing arm (14). 本发明涉及种带精加工装置(10)，带精加工装置包括用于尤其以可枢转的方式支撑挤压臂(14)的支架(12)，其中，在挤压臂(14)上设置有挤压部件(29)，通过所述挤压部件能够将精加工带(36)朝着待被加工的工件表面(40)挤压，其中，设置有位置检测装置(62)，以用于检测挤压臂(14)的与挤压臂(14)的期望位置偏离的实际位置。通过检测挤压臂(14)的与挤压臂(14)的期望位置偏离的实际位置来测定挤压部件(29)的失效或者故障。