Abstract:
A measuring device for checking mechanical pieces either while stationary or rotating which includes a first feeler substantially fixed with respect to a support and in alignment with a measuring head having a second feeler and supported by the support, a commutation unit containing a shaft and cams for changing the support and an electrical unit for detecting and visually recording the diameters and geometrical errors. In a first working condition the support of the measuring device can oscillate in order to allow both the first and second feeler to remain in contact with the piece to be gauged. The commutation unit allows for a change from the first working condition for measuring diameters of the work piece through the first and second feelers to a second working condition for measuring geometrical errors of a piece through the second feeler.
Abstract:
A coordinate measuring machine for measuring coordinates or properties of a workpiece includes an extended stylus. The extended stylus includes an extension element and a connection element. The extension element includes a carrier portion mounted at the connection element so as to be rotatable about an axis of rotation. The extension element includes, on a side remote from the connection element, a shaft portion that is aligned so as to deviate from the axis of rotation. The coordinate measuring machine includes a measurement head to which the extended stylus is attached. The measurement head is configured to measure deflections of the stylus resulting from contacts of the extended stylus to the workpiece.
Abstract:
A shaft roundness gauge measures the roundness (or lack thereof) of a surface such as a bearing surface of a shaft or axle of a truck, tractor or trailer. The gauge comprehends a plurality of specifically sized rings or collars having inner diameters which correspond to common outside diameters of shafts, axles and other circular or cylindrical components. The ring includes a radial opening which receives a collet fitting which receives a probe housing of a dial indicator. A collet clamp may be tightened to secure the dial indicator to the ring. The ring and dial indicator are positioned on a shaft, at that position where the shaft or component is believed to be least worn. The dial indicator is zeroed and then the assembly is rotated around the shaft or component to determine, by the reading of the dial indicator, the location of and the extent of wear of the shaft or component.
Abstract:
There are provided a surface shape measuring method and a surface shape measuring device which can measure the diameter of a workpiece to be measured with high precision and high reproducibility and have excellent versatility. These method include: acquiring first shape data indicating a surface shape of the workpiece with a detector being disposed on one side across a workpiece while rotating the workpiece relatively to the detector around a rotational center; acquiring second shape data indicating the surface shape of the workpiece with the detector being disposed on the other side across the workpiece while rotating the workpiece relatively to the detector around the rotational center; and calculating a shape parameter defining the surface shape of the workpiece by collating the first shape data and second shape data. In calculating the shape parameter, a deviation of the detector from the reference line is calculated based on the collation result.
Abstract:
A roundness measuring device including: an angle detector detecting a current rotation angle of a table relative to an X axis direction; a joystick (external operator) issuing an instruction for an operation amount of a rotation axis line of the table; a centering controller calculating a CX axis displacement amount and a CY axis displacement amount from the operation amount and the rotation angle, and displacing a CX axis displacement mechanism and CY axis displacement mechanism based on the calculated CX axis displacement amount and CY axis displacement amount; and a centering controller calculating an LX axis tilt amount and an LY axis tilt amount from the operation amount and the rotation angle, and displacing an LX axis tilt mechanism and LY axis tilt mechanism based on the calculated LX axis tilt amount and LY axis tilt amount.