An automatic drilling
machine for
brake pad steel backing includes a drilling device, a base, a position adjustment device, a steel backing support device, and a material conveying device. The drilling device includes a central shaft, a support frame, a
moving frame, a guide cylinder, and a linkage mechanism. The support frame is moved by the position adjustment device. The central shaft is slidably and rotatably mounted on the support frame, and a
drill bit is fixedly mounted at the front end of the central shaft. The
moving frame is slidably and rotatably mounted on the support frame, and a plurality of flip plates are rotatably and elastically mounted at the front end of the
moving frame. A cleaning
brush is fixedly mounted on the inner side of the flip plate, and a guide groove connecting the inner and outer sides is provided. The guide cylinder is slidably and elastically mounted on the support frame through a guide cylinder mounting frame, and an inlet communicating with a
coolant pipe is provided on the guide cylinder, and a guide groove is fixedly mounted thereon. A
cutting blade mounting ring is rotatably mounted inside the guide cylinder, and a plurality of
cutting blades are fixedly mounted on the
cutting blade mounting ring. This invention can effectively guide the flow direction of the
coolant and
cut long
drill chips into small segments during drilling.