Greenhouse connecting piece punching device

The utility model discloses a greenhouse connecting piece punching device, which relates to the technical field of greenhouse processing and comprises a bottom plate, a vertical rod is fixedly connected to the bottom plate, a mounting plate is fixedly connected to the upper end of the vertical rod, a hydraulic cylinder is mounted on the mounting plate, and a telescopic rod of the hydraulic cylinder penetrates through the mounting plate and is fixedly connected with a pressing plate. The pressing plate is fixedly connected with a punching die, the punching die is fixedly connected with a punch,the bottom plate is fixedly connected with a base plate, the base plate is fixedly connected with a supporting block, the supporting block is fixedly connected with a lower die plate, and the lower die plate is provided with a positioning groove matched with the outline of a machined workpiece. A through hole is formed in the middle of the positioning groove, a discharging groove is formed in thesupporting block, the upp