Adjustable grinding device for hardware machining

The adjustable grinding device comprises a base and a sleeve seat, a clamping seat is clamped in the sleeve seat, a plurality of clamping grooves used for clamping workpieces are formed in the clamping seat, a grinding plate is arranged above the clamping seat, a shaft rod is coaxially arranged on the top face of the grinding plate, a rotating mechanism is arranged at the top end of the shaft rod, and a positioning sleeve is arranged on the shaft rod in a sleeved mode. A first spring is arranged between the positioning sleeve and the grinding plate, a lifting mechanism is arranged on one side of the positioning sleeve and can drive the grinding plate to slide up and down along the inner wall of the sleeve seat, the device further comprises a water passing plate, track control is conducted on the sliding block through a limiting through groove and an arc-shaped through groove, and therefore track control is conducted on the grinding plate to complete feeding, discharging and grinding; in the grinding process,