Tool and method for secondarily plugging and assembling MOC card and riser card on T-shaped bracket

The invention provides a tool for secondarily plugging and assembling a MOC card and a riser card on a T-shaped bracket and a use method thereof. The tool comprises a supporting plate, a T-shaped bracket positioning block, an MOC card positioning platform deck, a guide slide rail and a movable gripper, wherein the T-shaped bracket positioning block is fixed to one side of the supporting plate andis provided with a groove accord with a transverse end of the T-shaped bracket in shape. The MOC card positioning platform deck is mounted on the supporting plate through the guide slide rail and canmove along the guide slide rail, so that the MOC card and the riser card on the T-shaped bracket are plugged or unplugged to each other. The movable gripper is fixed to the supporting plate and is fixedly connected to the MOC card positioning platform deck, and the movable gripper can be moved front and back to different positions, so that the MOC card positioning platform deck can slide along theguide slide rail. The tool