Servo border instrument

The utility model relates to a servo border instrument, including drivetrain parts, drive part, action part, damping device and the tool housing body, wherein drivetrain parts includes servo motor andspeed reducer, servo motor is connected, installs at tool housing internal portion with the speed reducer, drive part includes transmission shaft and gear, the transmission shaft passes through the gear to be connected with the speed reducer, and drive the transmission shaft through the speed reducer and rotate, be equipped with damping device between the speed reducer lower extreme and the toolhousing body, the action part is connected with the transmission shaft, drives the action part through the transmission shaft and rotates. The utility model discloses active wheel initiative is rotated, and in the existing market all is passive rotation, can overcome phenomenons such as overlap that ordinary border often meets, formation of wrinkles, and the border quality improves greatly. 本实用新型涉及种伺服滚边工具，包括动力部分、传动部分、工作部分、