Automatic tapping device for copper part machining

The utility model discloses an automatic tapping device for copper piece processing, which comprises a base, a first moving seat is arranged on the base, a second moving seat is arranged on the first moving seat, a fixing plate is arranged on one side of the second moving seat, a third servo motor is arranged on one side of the second moving seat, the third servo motor is connected with a first belt wheel, and the first belt wheel is connected with a second belt wheel. The outer side of the first belt wheel is connected with an inner toothed belt, the inner toothed belt is connected with a second belt wheel, the second belt wheel is connected with a floating tapping shaft, the floating tapping shaft penetrates through a through hole in the fixing plate, and a shaft sleeve of the floating tapping shaft is fixedly connected with the fixing plate. The tapping work is carried out subsequently under the condition that the lathe does not decelerate, the working efficiency is improved, the tapping depth can be accur