Depth-adjustable automatic tapping device

• Main Authors: LI WANBAO, QI CHANGWEI
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: 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; THREAD CUTTING; TRANSPORTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH

The utility model discloses a depth-adjustable automatic tapping device which comprises a working table, a shell is arranged at the top of the working table, a rotary drum is connected to the outer wall of the bottom of the shell through a bearing, a conical hole is formed in the rotary drum, a conical sleeve is arranged in the conical hole, a square hole is formed in the conical sleeve, and a screw tap is arranged at the bottom of the conical sleeve. A square shaft is integrally formed on the outer wall of the top of the screw tap and movably inserted into the square hole, a locking ring is connected to the outer wall of the bottom of the rotary drum through threads, and shrinkage openings distributed in a central symmetry mode are formed in the outer wall of the conical sleeve. Through the arrangement of the locking ring, the conical sleeve and the contraction opening, the locking ring is rotated, so that a square shaft of the screw tap is clamped and fixed through the contraction opening when the locking r