Annular thin plate inner side thread forming method, universal sleeve machining method and semicircular cover

• Main Author: CHEN JIEBIN
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses an annular thin plate inner side thread forming method, a universal sleeve machining method for a faucet and a semicircular cover. The annular thin plate inner side thread forming method comprises the steps that cutting is conducted, specifically, a plate-shaped workpiece is taken; punching is conducted, specifically, the workpiece is punched to form a circular through hole; hole reversing is conducted, specifically, flanging machining is conducted on the round through hole, and a first annular part and an annular groove are formed in a protruding mode; thread rolling: performing thread rolling processing on the first annular part so as to form a connecting thread on the surface of the first annular part; and stretching is conducted, specifically, after thread rolling is conducted, the outer edge of the annular groove is subjected to stretching machining to form a second annular part, and the first annular part is arranged in the second annular part. The connecting thread is formed on