The invention discloses an
automatic control crank gantry press and a control method thereof, and mainly relates to the field of hydraulic machines. Comprising a
portal frame body arranged on the ground, pressing mechanisms symmetrically arranged on the
portal frame body,
cushion blocks, trolleys and a plurality of trolley positioning mechanisms arranged below the
portal frame body. The trolley is loaded with a single trolley frame body, the trolley positioning mechanism is used for limiting the trolley, the
cushion block is matched with a mounting hole of a single trolley
crank, the pressing mechanism on the portal frame body is used for centering and pressing the trolley, and the
cushion block is used for increasing the contact area of the
crank and the pressing mechanism. The device has the beneficial effects that the device is used in the assembling process of the crank and the middle shaft of the bicycle, the assembling precision is high, the assembling process is
safer, manual operation is greatly reduced, the
stress range of the original uneven crank surface is enlarged through the cushion block, the stress of the crank surface is more uniform, the assembling effect is better, and the assembling efficiency is improved. And in the pressing process, pressing can be conducted in the middle shaft direction.