Development of Pneumatic Ball Probe
We are developing novel ball probing system using air pressure for touch trigger type
probing system in CMM.
| Basic construction of pneumatic ball probe |
Pneumatic ball probe consists of a thin pipe and a small ball. The small ball is hold
by vacuum pressure of inside of the pipe.
When the ball touches a workpiece, air flows occur from the outside to the inside of
pipe. Detecting the air flows, the pneumatic ball probe can be used as a touch trigger
type probing system.
 Basic principle of pneumatic ball probe
Right figure shows the construction of prototype of the probe. Using the differential pressure of the two probing system, the detecting timing is very stable.
 Pneumatic ball probe
| Construction of probing sysytem |
Left figure indicates the construction of the pneumatic ball probing system. The system
consists of a compressor, a vacuum generator and pressure sensor.
 Construction of pneumatic ball probe system
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