| 摘要 |
The device for implementing the method has a mechanical clamping unit which is known per se and comprises an electric motor fitted with an immobilising brake, a mechanism equipped with a transmission, a grooved socket mounted so as to rotate in the mechanism, and a threaded spindle which can slide axially counter to the reaction force of the springs housed in the grooved socket and which link the grooved socket to the moving head stock. It includes recesses 11 at the outer periphery of the envelope of the grooved socket 6 and an electrical signal transmitter 10 is arranged opposite these recesses 11, close to the grooved socket 6. Application to mechanical clamping units actuated by an electric motor. <IMAGE>
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