Aluminum alloy punching device based on sliding type punching depth adjustment and punching method thereof

The invention relates to the technical field of aluminum alloy machining, in particular to an aluminum alloy punching device based on sliding type punching depth adjustment and a punching method of the aluminum alloy punching device. The device comprises a workbench and a top plate arranged at the top of the workbench through a supporting column, an air cylinder is installed at the top of the top plate, the movable end of the air cylinder penetrates through the top plate and is fixedly connected with a mounting plate, a plurality of driving pieces are installed at the bottom of the mounting plate, and the output ends of the driving pieces are connected with tool bits with different diameters. According to the aluminum alloy punching device based on sliding type punching depth adjustment and the punching method of the aluminum alloy punching device, in the process that a workpiece is moved from a first tool bit to a second tool bit, the workpiece is guided to be in an inclined state through a guiding part, and