Grinding head assembly of chromium plating polishing machine

The utility model discloses a chromium plating polisher grinding head assembly which comprises a base plate, the base plate is of a semicircular structure, an adjusting plate of a fan-shaped structure is arranged on the surface of the base plate, the adjusting plate is attached to the surface of the base plate and slides, and an angle adjusting motor is installed in the middle of the lower end of the rear side of the base plate. A driving shaft of the angle adjusting motor penetrates through the base plate through a bearing and is in transmission connection with the middle of the lower end of the rear side of the adjusting plate, and a positioning piece for positioning the position of the adjusting plate is further arranged on the surface of the base plate. A driving mechanism is arranged in the middle of the lower end of the surface of the adjusting plate, a supporting roller and a tensioning adjusting mechanism are arranged at the two ends of the upper portion of the surface of the adjusting plate correspon