Patent ID: 9744600
Date: 2017-08-29
CPC Classifications: B23B,B23Q,H02K,Y10T

Claim:
1. An electrically-adjustable tool holder configured for holding a tool and comprising: a handle body; a connecting member with a first end securely coupled to an end of the handle body and a second end opposite to the first end, the connecting member defining a through hole passing through the first end and the second end; and a driving member comprising: wherein the magnet comprises: a loading body comprising a first end, a second end opposite to the first end, and a sidewall interconnecting the first end and the second end, and defining a holding hole space with an inner surface in the loading body extending from the first loading end into the loading body toward the second loading end, and a plurality of magnetic plates mounted on the inner surface of the holding hole; the electric coil is movably received in the holding hole.