Punching device for punching multiple holes of sheet and using method thereof

The invention discloses a punching device for punching multiple holes of a sheet and a using method thereof. The device is used for punching multiple holes in the sheet (4) and is fixedly provided with a workbench (91) used for bearing the sheet (4) and a punching gasket (41) and a rack (9) used for an upper mounting box body (92). The upper mounting box body (92) is internally and fixedly provided with a punching lifting drive device (8) including a telescopic rod (81). The lower end of the telescopic rod (81) is fixedly connected with a front-back sliding guide block (82). The left side of the lower portion of the front-back sliding guide block (82) is fixedly connected with a front jacking rolling shaft (72) and a rear jacking rolling shaft (71) which are isolated in the front-back direction and are each rotatably provided with a jacking roller (74). 种用于薄板多孔冲制的冲孔装置及其使用方法，所述装置用于对薄板（4）冲制多个冲孔，包括固定设置有用以承载所述薄板（4）以及冲压衬垫（41）的工作台（91）和上安装箱体（92）的机架（9），所述上安装箱体（92）中固定安装有包括伸缩杆（81）的冲孔升降驱动装置（8），所述伸缩杆（81）的下端与前后滑动导向块（82）固定