| 摘要 |
Column for measuring longitudinal dimensions (1) comprising:a supporting frame (2),a carriage (3) capable of moving along a measuring axis (z) along the supporting frame,a probe tip (44) connected to said carriage and designed to be brought into contact with the piece to be measured,a motorized driving device of the carriage comprising a cable or belt (40) for moving said carriage along said measuring axis and a driving motor (5),a system for measuring the position of said carriage (3) along said measuring axis.The driving motor drives an upper driving pulley through a reducing gear and a friction element. The motor, the reducing gear and the friction element are all integrated inside the pulley.Advantages: gain of space. Reduction of the number of parts. Reduction of the constraints applied by the driving belt on the carriage.
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