Drilling device for mechanical design

The utility model provides a drilling device for mechanical design, and relates to the technical field of machining. The device comprises a mechanical drilling machine, a fixing plate, an adjusting block, a threaded rod, a limiting block, a fixing mechanism, a containing plate, a clamping plate, a sliding block and a spring, the fixing plate is fixedly connected to a drilling platform of the mechanical drilling machine, a moving groove is formed in the fixing plate, the adjusting block is slidably connected into the moving groove, and the threaded rod penetrates through the fixing plate and the adjusting block to be installed in the moving groove. The threaded rod is in threaded connection with the adjusting block. By rotating the threaded rod, the adjusting block and the placing plate can be driven to move left and right. The two ends of the adjusting block are connected with limiting blocks correspondingly, adjusting holes are formed in the side walls of the limiting blocks, a fixing mechanism is connected