Carl Zeiss Industrielle Messtechnik Gmbh

Carl-zeiss-stiftung

Otto Ruck

Ralf Bernhard

Ralf Bernhardt

Guenter Grupp

Peter Uhl

Eugen Aubele

Peter Mueller

Gunter Grupp

Karl-Hermann Breyer

Franz Szenger

Günter Grupp

Berndt Kammleiter

Wolfgang Wiedmann

Thomas Maier

Martin Wimmer

Jochen Burger

Klaus-Dieter Gotz

David Hoecherl

Ernst Stumpp

Otto Boucky

Henning Schon

David Höcherl

Friedrich Schoerg

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.

Extended stylus for a coordinate measuring machine

The invention relates to a method for checking an electrical value of an electric machine, in particular an electric machine of a coordinate measuring device. The electric machine has an electric drive comprising a stator and a rotor. The method includes the steps of: detecting a value of a drive current delivered to the electric drive for driving the rotor, detecting a measured value of an electrical input variable of the electric machine, determining a calculated value of the electrical input variable on the basis of the detected value of the drive current and on the basis of a performance model of the electric machine, and determining a comparison value on the basis of the detected measured value and the calculated value of the electrical input variable, in order to check the detected value of the drive current.

Method and device for checking an electrical value of an electric machine

A sensor adjustment mechanism for a coordinate measuring machine includes a sensor, first and second joints, a change interface, and a fixing device. The first joint allows the sensor to pivot about a first axis. The second joint allows the sensor to rotate about a second axis. The change interface releasably couples the sensor adjustment mechanism to a measuring head of the coordinate measuring machine. The fixing device is configured to clamp the joints. The change interface includes a first component and a ferromagnetic second component movable relative to the first component. The change interface is configured to be fixed to the measuring head by a magnetic fixing force exerted on the second component, which causes a movement of the second component relative to the first component. The movement actuates the fixing device so as to clamp the joints and inhibit the sensor from being pivotable and rotatable.

Sensor adjustment mechanism for a coordinate measuring machine

A probe system for measuring a measurement object in optical and tactile fashion is provided which includes a tactile sensor. The tactile sensor includes a tactile probe element. The tactile probe element has a sensor surface and is configured to probe the measurement object in a tactile fashion at at least one probing point on the sensor surface. The probe system further includes a microscope camera which includes an illumination device configured to produce an illumination light beam. The microscope camera further includes a microscope optical unit configured to focus the illumination light beam in the probing point and to produce a magnified image of the measurement object in an image plane. The microscope camera also includes an image capture device configured to record the magnified image and is at least partly arranged in the tactile probe element.

Probe system for measuring at least one measurement object in optical and tactile fashion

The present invention relates to a method for single-point probing of a workpiece by means of a sensor, in particular a tactile sensor, of a coordinate measuring machine, comprising the steps of providing a variable at least indirectly representing a required accuracy of the single-point probing, providing a parameter data set, wherein the parameter data set has prescriptions for regulating and/or evaluating the single-point probing with the required accuracy, and carrying out the single-point probing of the workpiece, wherein the coordinate measuring machine is regulated on the basis of the provided parameter data set and/or an evaluation is carried out on the basis of the provided parameter data set. Furthermore, a coordinate measuring machine for single-point probing of a workpiece is proposed.

Method for single-point scanning of a workpiece and coordinate measuring machine

A probe head for a coordinate measuring machine has a first probe head part with an interface, for coupling the probe head to the coordinate measuring machine. A second probe head part is coupled to the first probe head part and is rotatable relative to the first probe head part about a first axis. A third probe head part is coupled to the second probe head part and is pivotable relative to the second probe head part about a second axis. The first and second axes lie askew in relation to each other. A first actuator pivots the third probe head part about the second axis via a push rod coupled to the third probe head part at a lateral distance from the second axis. The first actuator moves the push rod in a longitudinal direction to pivot the third probe head part relative to the second probe head part.

Probe head for a coordinate measuring machine

A method for monitoring a coordinate-measuring machine (CMM), having a monitoring device which is set up to monitor at least one location region of the CMM, in which a movable part of the CMM is movable, wherein the method includes:

Machine and method for monitoring a coordinate measuring device

A method for automatically receiving a sensor head of a coordinate measuring machine. The sensor head comprises a first changing interface for coupling the sensor head with a carrier structure of the coordinate measuring machine, and a second changing interface for coupling a cable element with the carrier structure. The second changing interface of the sensor head is arranged on an end of the cable element distal to the sensor head, and is spatially separated from the first changing interface. The sensor head is initially provided in a magazine location of the coordinate measuring machine. The sensor head is received with the first changing interface in a first receiver of the magazine location, and the second changing interface is received in a second receiver of the magazine location.

Coordinate measuring machine having a carrier structure for coupling with a sensor head

Method for automatically receiving a sensor head and coordinate measuring machine

A device has a displaceable device part, a drive, which is configured to drive the displaceable device part and to thus induce a movement in the displaceable device part, and a control unit, which is connected to the drive and is configured to control the drive. The device further has a first signal transmitter for determining a position and/or speed of the displaceable device part. The first signal transmitter and/or a first signal evaluation device, which is connected to the signal transmitter, are connected to the control unit such that the control unit receives information from the signal transmitter about the position and/or speed of the displaceable device part during operation of the device and controls the drive on the basis of the information received. A second signal transmitter of the device serves to monitor and/or redundantly determine the position and/or speed of the displaceable device part.

Device with displaceable device part, in particular coordinate measuring device or machine tool

A method for operating a coordinate measuring machine or a machine tool. A movement of a machining part is controlled in such a way that, during the movement of the machine part, a predetermined maximum acceleration and/or a predetermined maximum jerk is not exceeded. The maximum acceleration and/or the maximum jerk is varied depending on the position of the machine part and/or depending on the alignment of the machine part.

Operation of a coordinate measuring machine

The present invention relates to a method for controlling a measurement process of a coordinate measuring machine for measuring a measurement object, wherein the coordinate measuring machine comprises a controlling device and a feeler head having a feeler pin, and wherein a relative movement between the feeler pin and a surface of the measurement object is controlled by the controlling device. Furthermore, the surface comprises at least one actual section, which corresponds to a measurement object surface, and at least one virtual section. The present invention also relates to a corresponding coordinate measuring machine and computer program.

Method for controlling a measurement process by means of virtual surfaces

In a method for controlling an operation of a coordinate measuring device, at least one operational parameter is determined. One value of the operational parameter is allocated to a plurality of components. A sequence for determining the operational parameter is provided for the majority of the components. The method for determining the operational parameter in the predetermined sequence for each component is now described. It starts with the component that is first in the sequence: i) if the value of the operational parameter is allocated to the component, the value is adopted as a value of the operational parameter that is available for the operation, ii) if no value of the operational parameter is allocated to the components, one available value of the operational parameter that was available until then still remains available, iii) if another component is provided in the sequence, the method is carried out with the component.

Control of an operation of a coordinate measuring device

A coordinate measuring machine for determining spatial coordinates on a measurement object has a frame structure on which a probe head is arranged. The probe head has a probe head sensor system, a body part and a coupling part which can move relative to the body part. The frame structure is designed to move the probe head relative to the measurement object. The probe tool has at least one stylus for making contact with the measurement object, and also has a rotating plate. The stylus is coupled to the coupling part by means of the rotating plate, such that it can rotate. At least one roll motion projection is formed on the body part. The rotating plate can be rolled along this roll motion projection by means of a movement of the coupling part in order to set a defined orientation of the stylus.

Coordinate measuring machine for determining spatial coordinates on a measurement object

A machine part, such as a laser, is moved along at least one axis of movement relative to a workpiece. Position pulses are generated by means of an incremental encoder, with the number of position pulses in a position pulse train being representative of the movement position of the machine part. A trigger signal for the machine part is generated when the current number of position pulses corresponds to a predefined number of pulses. In a preferred embodiment, the current number of position pulses and the defined number of pulses are compared remote from a higher-level drive control circuit. It is particularly preferred if the current number of position pulses and the defined number of pulses are compared in a comparator which is arranged on an interface card of a computer unit, with the drive control circuit for controlling the movement of the machine part being implemented with a closed loop controller in the form of a controller program, which is cyclically executed by a central processor of the computer unit.

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Pfahlheim, Germany

Otto Ruck