Novel guide mechanism for processing tappet hole of cylinder body

The utility model is applicable to the technical field of cylinder block processing, and particularly relates to a novel guide mechanism for processing a tappet hole of a cylinder block, which comprises a processing device, oppositely distributed brackets are arranged on two sides of the processing device, a positioning pin is arranged at the top of the processing device, oppositely distributed clamping oil cylinders are arranged at the bottom of the processing device, and the clamping oil cylinders are connected with a clamp body. A drilling jig rod is arranged on the side face of the machining device, one end, away from the machining device, of the drilling jig rod is connected with a positioning plate, the positioning plate is fixedly connected with a conveying plate, the conveying plate is fixedly connected with an ejector rod, the other end of the ejector rod is connected with a conveying oil cylinder, and a positioning oil cylinder for positioning the drilling jig rod is further arranged on the side fac