Drilling device for bottom plate of excavator

The drilling device for the bottom plate of the excavator comprises a base, a workbench is fixedly installed on the top of the base, machining mechanisms are arranged on the portions, located on the left side and the right side of the workbench, of the top of the base, an installation groove is formed in the top of the workbench, and a lead screw is rotatably installed in the installation groove. According to the drilling device for the excavator bottom plate, the position of the sliding block can be changed through extension and contraction of the electric cylinder, then the position of a mounting part on the top of the sliding block is changed, the first gear is driven to rotate through rotation of the first motor, and due to the effect of the second gear, the second gear drives the drill bit to rotate; the height of the drill bit is changed through work of the hydraulic cylinder, the drill bit is controlled to drill a bottom plate, adjustment is convenient, a user can conveniently operate, the bottom plate