Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
  • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
  • G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
  • G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes

Definitions

• the magnetic device therefore does not need to apply a clamping force, as in the publications mentioned in the introduction, which guarantees reliable operation of the coordinate measuring machine.
• the clamping forces that press the sensor device against the coordinate measuring machine are typically at a multiple of the weight of the sensor device. Otherwise, the relative position between the sensor device and the part of the coordinate measuring machine to which the sensor device is attached could change during operation. This would have the consequence that the measurement results are unusable.
• the mounting device has a securing device for securing the connection of the connecting elements against unintentional loosening when the securing device can be actuated in the stop position.
• the securing device can be a lock for locking the connection.
• a stop position is defined by the connecting elements in which the connecting elements touch one another during assembly of the sensor device on the coordinate measuring machine.
• the mounting device is designed in such a way that, in a defined orientation of the first connecting element suitable for mounting, a counterforce opposing the mounting has to be overcome in order to reach and / or maintain the stop position.
• the magnetic force in the stop position is set as follows:
• the first connecting element 12 has an essentially circular carrier 40, in the center of which a permanent magnet 42 is fastened.
• a permanent magnet 42 is fastened on the underside of the carrier 40, according to the arrangement of the contact surfaces 28, 29 on the contact board 27, protrude ends of prestressed resilient electrical contact pins 49.
• Corresponding electrical connections 48 for the electrical connection of the contact pins 49 are located on the opposite side of the carrier 40.
• the connecting element 12 is fastened to a sleeve 8 of a coordinate measuring machine.
• the illustration serves to illustrate how the magnetic force can be set.
• the function a or the corresponding curve can now be shifted along the horizontal coordinate axis, so that the magnetic force at a point in the distance D plotted on the horizontal axis corresponds to a desired value.
• the magnetic force is set so that in the stop position it is one to 1.1 times the counterforce.
• An example of a curve shifted by the length ⁇ x is shown with a broken line in FIG. 8, which is denoted by the reference symbol a '.
• the displacement shows the amount by which the distance M between the permanent magnet or magnets on the one hand and the body must differ from the distance D so that the desired compensation of the counterforce is achieved in a specific embodiment of an assembly device.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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ID=34744907

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Citations (4)

Family Cites Families (6)

• 2004
  • 2004-01-19 DE DE200410002853 patent/DE102004002853A1/de not_active Ceased
• 2005
  • 2005-01-12 DE DE502005008438T patent/DE502005008438D1/de not_active Expired - Lifetime
  • 2005-01-12 EP EP05701011A patent/EP1706703B1/de not_active Expired - Lifetime
  • 2005-01-12 WO PCT/EP2005/000438 patent/WO2005068933A1/de not_active Ceased

Patent Citations (4)

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