Form measuring instrument
First Claim
Patent Images
1. A form measuring instrument comprising:
- a body;
a movable member comprising;
a stylus holder being rotatably supported by the body;
a stylus being held by the stylus holder; and
a tip being provided at an end of the stylus and being contactable with a workpiece surface;
a measurement-force-applying unit being adapted to generate a rotation force acting on the stylus holder to bring the tip of the stylus into contact with the workpiece surface;
a displacement detector being provided to a portion of the stylus holder to detect a displacement of the stylus holder resulting from a rotation thereof; and
a vibration generator being adapted to apply a vibration to the stylus holder,wherein the vibration applied by the vibration generator comprises a first vibration that makes the stylus holder move around a turn shaft thereof.
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Accused Products
Abstract
A form measuring instrument includes: a body; a movable member including: a stylus holder being rotatably supported by the body; a stylus being held by the stylus holder; and a tip being provided at an end of the stylus and being contactable with a workpiece surface; a measurement-force-applying unit being adapted to generate a rotation force acting on the stylus holder to bring the tip of the stylus into contact with the workpiece surface; a displacement detector being provided to a portion of the stylus holder to detect a displacement of the stylus holder resulting from a rotation thereof; and a vibration generator being adapted to apply vibration to the stylus holder.
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Citations
12 Claims
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1. A form measuring instrument comprising:
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a body; a movable member comprising; a stylus holder being rotatably supported by the body; a stylus being held by the stylus holder; and a tip being provided at an end of the stylus and being contactable with a workpiece surface; a measurement-force-applying unit being adapted to generate a rotation force acting on the stylus holder to bring the tip of the stylus into contact with the workpiece surface; a displacement detector being provided to a portion of the stylus holder to detect a displacement of the stylus holder resulting from a rotation thereof; and a vibration generator being adapted to apply a vibration to the stylus holder, wherein the vibration applied by the vibration generator comprises a first vibration that makes the stylus holder move around a turn shaft thereof. - View Dependent Claims (2, 3, 4, 5)
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6. A form measuring instrument comprising:
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a body; a movable member comprising; a stylus holder being rotatably supported by the body; a stylus being held by the stylus holder; and a tip being provided at an end of the stylus and being contactable with a workpiece surface; a measurement-force-applying unit being adapted to generate a rotation force acting on the stylus holder to bring the tip of the stylus into contact with the workpiece surface; a displacement detector being provided to a portion of the stylus holder to detect a displacement of the stylus holder resulting from a rotation thereof; and a vibration generator being adapted to apply a vibration to the stylus holder, wherein the vibration generator is adapted to vibrate the stylus holder at a frequency higher than a natural frequency of the movable member, and the displacement detector is adapted to output only a frequency component lower than the natural frequency of the movable member taken from a signal representing the displacement detected at the portion of the stylus holder.
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7. A form measuring instrument comprising:
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a body; a movable member comprising; a stylus holder being rotatably supported around a turn shaft by a surface of the body, a direction of the turn shaft being perpendicular to the surface of the body; a stylus being held by the stylus holder; and a tip being provided at an end of the stylus and being contactable with a workpiece surface; a measurement-force-applying unit being adapted to generate a rotation force acting on the stylus holder to bring the tip of the stylus into contact with the workpiece surface; a displacement detector being provided to a portion of the stylus holder to detect a displacement of the stylus holder resulting from a rotation thereof; and a vibration generator being adapted to apply a vibration to the stylus holder. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification