Abstract

A roundness and/or dimension measuring device for in-process measurement of crank pins during a machining operation on a grinding machine having a base body, and a measuring head, which is connected to the base body via a rod assembly and which is movable between a neutral position and a measuring position. The measuring head has a measuring probe for contacting the crank pin, and the rod assembly is designed and configured in such a way that the measuring head in the measuring position follows orbital rotations of the crank pin. At least one oscillation damping element is operatively associated with the measuring head for holding it in engagement with the crank pin during the orbital rotation.

IPC Classes  ?

• G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
• G01B 5/08 - Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
• B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness

Abstract

A measuring device for in-process measurement of test pieces during a machining operation on a machine tool, in particular a grinding machine, has a base body, and a measuring head movable between a neutral position and a measuring position and which is connected to the base body via a rod assembly which is configured and set up in such a way that the measuring head in the measuring position follows orbital rotations of a test piece about a rotational axis. The measuring head has a measuring sensor which is deflectable along a linear axis for recording measured values during a measuring operation. A control apparatus is provided for controlling the measuring operation. The control apparatus is configured and set up in such a way that the measuring device may be calibrated in a calibration mode.

IPC Classes  ?

• G01B 3/30 - Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g. end measure, feeler strip
• G01B 5/10 - Measuring arrangements characterised by the use of mechanical techniques for measuring diameters of objects while moving
• B24B 5/42 - Single-purpose machines or devices for grinding crankshafts or crankpins
• G01B 5/08 - Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
• G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
• B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation

Abstract

Measuring device, in particular for in-process measurement of test pieces during a machining operation on a machine tool, in particular a grinding machine, has a measuring head which is movable relative to a base body of the measuring device between a neutral position and a measuring position in which the measuring head is in measuring contact with the test piece. At least one angle sensor is associated with the measuring head for detecting the angular position of the measuring head, in particular changes in the angular position of the measuring head relative to the test piece, during a measuring operation.

IPC Classes  ?

• G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
• B24B 5/42 - Single-purpose machines or devices for grinding crankshafts or crankpins
• B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation

Abstract

A measuring device includes a base body, and a measuring head which is movable between a rest position and a measuring position. The measuring device also includes an apparatus for moving the measuring head from the rest position into the measuring position, and a stop for limiting the motion of the measuring head from the rest position into the measuring position. A motorized drive unit for adjusting the position of the stop is operatively associated with the stop in such a way that the measuring position is adjustable, and a control unit is provided for activating the drive unit.

IPC Classes  ?

• G01B 3/38 - Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable

Abstract

Measuring device for in-process measurement of test specimens during a machining process on a machine tool, in particular a grinding machine, has a measuring head connected pivotably about a first pivot axis to a base body of the measuring device via a linkage, for providing an apparatus for pivoting measuring head in and out of a measuring position. Linkage has a first linkage element and a second linkage element arranged pivotably about first pivot axis. A third linkage element is connected pivotably about a second pivot axis to the end of second linkage element facing away from first pivot axis. A fourth linkage element is connected pivotably about a third pivot axis to the end of third linkage element facing away from second pivot axis, fourth linkage element being connected pivotably about a fourth pivot axis to first linkage element at a distance from third pivot axis.

IPC Classes  ?

• G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
• G01B 3/38 - Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable

Goods & Services

Machines tools and components therefor. Measuring and locating apparatus and instruments, gauges, checking gauges, gauge blocks, checking (supervision) and control instruments (mechanical, optical, electric, electronic or pneumatic).

Goods & Services

Machine tools and component parts thereof. Measuring and identification instruments and apparatus; gauges, checking gauges, gauge blocks; mechanical, optical, electric, electronic or pneumatic monitoring and control instruments.

Goods & Services

(1) Machines-outils et leurs parties constitutives; instruments et appareils de mesure, de repérage, de contrôle et de commande nommément machinerie qui mesure et contrôle la précision de fabrication de pièces mécaniques; jauges, calibres de contrôle, cales-étalons.