Abstract:
A checking system (4) for checking dimensional and/or geometric features of a workpiece (W) comprises a support and locating element (30), a feeler (50) for touching the workpiece, an arm (42) supporting the feeler and movable with respect to the support and locating element, and a transducer device (14) to detect the position of a checking surface (41) of the arm with respect to the support and locating element and generate signals indicative of the features to be checked. At least one of the support and locating element and the arm is made of a material having density not higher than 1.6 g/cm3 and tensile strength not lower than 1.3 GPa. A procedure for manufacturing such checking system comprises the steps of obtaining a plurality of flat elements from a sheet of material having the aforementioned characteristics, and connecting the flat elements to obtain box-like structures that define at least one of the support and locating element and the arm. The apparatus can be advantageously applied for high speed checking shape or profile of rotating workpieces.
Abstract translation:用于检查工件(W)的尺寸和/或几何特征的检查系统(4)包括支撑和定位元件(30),用于接触工件的触发器(50),支撑探测器的臂(42)和可移动的 以及用于检测臂相对于支撑和定位元件的检查表面(41)的位置并产生指示要检查的特征的信号的换能器装置(14)。 支撑和定位元件和臂中的至少一个由密度不高于1.6g / cm 3且抗拉强度不低于1.3GPa的材料制成。 用于制造这种检查系统的步骤包括以下步骤:从具有上述特征的材料片中获得多个扁平元件,并且连接扁平元件以获得限定至少一个支撑和定位元件的盒状结构,以及 手臂。 该装置可以有利地应用于旋转工件的高速检查形状或轮廓。
Abstract:
Follower device (1) for measuring the profile of a workpiece (2), for instance a camshaft, with a measuring shaft (7) that is slidably coupled to a measuring body (6) so as to move along a measuring direction (D). The measuring shaft carries a feeler (3) that can rest on a surface of the workpiece, under the thrust of a thrust or resilient element (10). A position sensor (4) detects the position of the measuring shaft along the measuring direction, and an actuator (12) has a movable element (13) that moves between two end positions spaced apart from each other and cooperates with an abutment surface (31) of a mechanical portion integral with the measuring shaft in order to displace the measuring shaft. A contact sensor (14) cooperates with the actuator and with a mechanical portion that defines the abutment surface, for instance a positioning lug (11) rigidly linked to the measuring shaft, to detect whether the movable element of the actuator is in contact with the abutment surface.