Abstract:
Device and method for positioning a precision part on a turntable (130). The device (100) comprises at least two distance sensors (121.1, 121.2, 121.3), which operate in a contactless manner and are situated in a previously known configuration to a rotational axis (A1) of the turntable (130). The measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) are radially oriented in the direction of the rotational axis (A1) so that the measurement axes (124.1, 124.2, 124.3) of the distance sensors (121.1, 121.2, 121.3) meet in a virtual measuring point (MV). The distance sensors (121.1, 121.2, 121.3) are connected to analysis electronics (200). Output signals (a.1, a.2, a.3) of the distance sensors (121.1, 121.2, 121.3) may be processed on the basis of the analysis electronics (200), in order to allow coaxial centering of the precision part (11) in relation to the rotational axis (A1) upon placement of the precision part (11) on the turntable (130).
Abstract:
Device having removable probe system and a stylus instrument. The probe system is connected to the stylus instrument in a zero position by the attractive force of the permanent magnet. A mechanical lever system is provided, which comprises a spring and, when the probe system is pulled out, transfers the probe system together with a part of the stylus instrument from the zero position into a replacing position through a displacement motion. At the same time, the permanent magnet is spatially separated from the probe system and the attractive force which acts between the probe system and the stylus instrument is reduced.
Abstract:
Device with a removable probe head (15) for measuring a workpiece, whereby the device comprises a receiving section (17.1) for attaching the probe head (15). In the receiving section (17.1) sensors (17.2) in fixed, predefined positions are arranged. The removable probe head (15) comprises several counterpart elements, which interact with the sensors (17.2) if the probe head (15) is attached to the receiving section (17.1), whereby a coding of the removable probe head (15) can be set in advance, by adjusting the position of the counterpart elements.
Abstract:
Described is a device for machine tools or measuring apparatus for detecting the spatial position of a carriage movable in a coordinate axis along a guide with respect to a reference standard which is designed as a rectangular plate extending parallel to the guide of the carriage. Two opposed, parallel surfaces of the reference standard carry each a two-dimensional line grating. A position measuring system serves the function of determining continuously the spatial position of a support member fixedly connectible with the carriage. The position measuring system includes three optical incremental reading heads and one distance sensor. The support member is arranged on the movable carriage such as to prevent the support member from contacting the reference standard over the entire length of the travel while at the same time detection is being performed. Owing to the arrangement of the three reading heads and the distance sensor at accurately defined positions on the support member it is possible to determine the location and the spatial position of the support member and hence of the carriage connected therewith.
Abstract:
Device having removable probe system and a stylus instrument. The probe system is connected to the stylus instrument in a zero position by the attractive force of the permanent magnet. A mechanical lever system is provided, which comprises a spring and, when the probe system is pulled out, transfers the probe system together with a part of the stylus instrument from the zero position into a replacing position through a displacement motion. At the same time, the permanent magnet is spatially separated from the probe system and the attractive force which acts between the probe system and the stylus instrument is reduced.
Abstract:
The scanning head according to the invention has the horizontal main axis (1) and is provided for numerically controlled gear measuring devices. Its feeler (2) is guided by a linear slide (4) and the latter is guided by a leaf spring parallelogram (11, 12, 13, 14) in the two coordinate directions (6) and (16). Mechanical devices (8) and (18) hold the feeler in a definite central position from which it can be deflected with the same measuring force in both the positive and negative coordinate directions. A centrally located two-dimensional ruled grating scale (10) detects all deflections of the feeler in the plane spanned by the two coordinates. To adjust the third coordinate direction, a pivot mechanism (3) is used, with a roller bearing (2) being provided for weight balance for the leaf spring parallelogram, the outer ring of the bearing being suspended by at least two springs (21, 22) on a fixed part (23) above the scanning head.