Threaded hole machining device for boring mill

• Main Author: WANG SHENGLIAN
• Format: Patent
• Language: Chinese; English
• Published: 12.12.2012
• Subjects: MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; THREAD CUTTING; TRANSPORTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH

The utility model relates to machining equipment, in particular to a threaded hole machining device for a boring mill and belongs to the technical field of machining. The threaded hole machining device is suitable for tapping the threaded hole on a large workpiece by various common boring mills. The device comprises a boring mill main shaft and a machine screw tap which is connected with the boring mill main shaft; the device is characterized in that a cutter bar is arranged in the boring mill main shaft; the front end of the cutter bar is provided with a through groove and an opening; the cutter bar is connected with an end shaft through a pin, and a three jaw chuck is fixed at the other end of the end shaft through a bolt; and the screw tap is tightly fastened by the three jaw chuck through a transition sleeve. The device can machine the threaded hole by using simple production equipment, a cutter is convenient to assemble and disassemble during use, and the threaded hole machining device is suitable for ta