This invention discloses a small-
diameter motor-driven dual-mode intelligent
honing tool integrated into a
machining center, along with its operation method and application, belonging to the field of precision
machining. The
honing tool includes a tool body, a
honing stone
assembly, a motor-driven feed mechanism, a conductive
slip ring, a protective cover, and a
motor control system. The motor-driven feed mechanism is integrated within the tool body, driving the axial movement of the pusher rod through a reduction gearbox and a lead screw pair, and using the
conical surface to drive the radial expansion and contraction of the honing stone. The
motor control system employs dual-mode
intelligent control: quantitative rough honing based on
encoder position feedback, and constant-pressure fine honing based on a motor current-honing force model, thus achieving precise closed-
loop control of the honing process. The conductive
slip ring ensures power supply for rotation, and the protective cover provides anti-rotation and sealing. This honing tool can complete drilling, reaming, and honing composite
machining in a single setup, solving the problems of low
pressure control accuracy and
slow response of traditional hydraulic tools, and is particularly suitable for ultra-high precision parts such as electro-hydraulic
servo valve sleeves.