Precise assembly mechanism

A precise assembly mechanism being applied to assemble multiple materials onto a holding tray having at least one through orifice, and the precise assembly mechanism comprising:

• a control unit controlling a clamp unit, a loading unit, and a visual sensing unit to operate;
• the clamp unit including a clamper configured to clamp the multiple materials and moving in a third direction Z;
• the loading unit located below the clamp unit and including a slider moving in a first direction X or a second direction Y perpendicular to the first direction X, the holding tray being mounted on the slider so as to be controlled by the slider to move in the first direction X or the second direction Y;
• the visual sensing unit including multiple sensors, wherein a first sensor is configured to identify a position of an upper rim of each of the at least one through orifice of the holding tray, a second sensor is configured to identify positions of a lower rim of each through orifice and a tip of each of the multiple materials, a third sensor is configured to determine a profile of each material in the second direction Y, and a fourth sensor is configured to judge the profile of each material in the first direction X;
• when the first sensor and the second sensor respectively confirm positions of the upper rim and the lower rim of each through orifice, the third sensor and the fourth sensor confirm the profile of each material is at a set value, and the second sensor confirms the position of the tip of each material is correct, the clamper inserts each material into each through orifice of the holding tray.