Novel punching drill bit

• Main Author: LYU YINGHUI
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: BORING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING; TURNING

The utility model relates to the technical field of drill bits, and provides a novel punching drill bit which comprises a sliding frame, the sliding frame is connected with a rotating frame in a rotating mode, the rotating frame is in threaded connection with a drill bit, the sliding frame is fixedly connected with a sliding rod, the sliding rod is in threaded connection with a positioning ring, the sliding rod is bonded with a pressing block, the pressing block is in sliding connection with a base, and the base is in threaded connection with the positioning ring. A spring is installed at the bottom end of the pressing block, the drill bit comprises a drill rod and a twist drill bit, the surface of the twist drill bit is coated with a reinforcing layer a, the reinforcing layer a is located on the inner side of a reinforcing layer b, and the surface of the reinforcing layer b is sprayed with a wear-resisting layer. The carriage connected with the drill bit is matched with the base, so that the drilling positio