Spring machine shaft core with replaceable inner core

• Main Authors: FENG YUMING, ZHANG RONGSHENG, XU LINFENG, SUN WEI, ZHANG JIANMING, YAN ZICHENG
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF METAL WIRE

The utility model is applicable to the technical field of axle center processing, and provides a spring machine axle core with a replaceable inner core, which comprises an axle core sleeve, a tail pipe is arranged on the left side of the inner wall of the axle core sleeve, the right end of the tail pipe is fixedly connected with an inner core body, the right end of the inner core body is rotatably connected with a cutter, and a plurality of thread grooves are arranged on the right side of the top end of the axle core sleeve. By means of the device, the problems that a cutter and an inner core need to be attached very tightly, the end opening of the inner core is abraded after production is conducted for a period of time, the quality of a product A is reduced, and the product A cannot be damaged are solved. The cover pressing type screw fixing mode is adopted, the die purchase cost is reduced, the die cost for replacing the whole shaft core is reduced, meanwhile, the length of the inner core is about one half