The invention relates to an automatic grinder for an
optical fiber ceramic insert core and an automatic
grinding method. The grinder comprises a stander, a power
system arranged on the stander, a
grinding system extended out of the stander and driven by the power
system, a lifting system arranged on the stand, a
pressure system driven by the lifting system to move up and down and a
control system, wherein the
pressure system and the
grinding system are arranged oppositely. The automatic grinding method is as follows: an
optical fiber ceramic insert core to be processed is arranged on the grinding system, and the lifting system is controlled to drive the
pressure system to compress the
fiber ceramic insert core to be processed; the grinding system begins working to
grind the lower end face of the
fiber ceramic insert core to be processed; and through
monitoring pressure change of the pressure system, the
control system controls ascending or descending of the lifting system according to the pressure change and / or change of grinding time, to further compress or loosen the
optical fiber ceramic insert core, so as to avoid defects of
instability and unevenness brought by manual operation. The automatic grinding method has the advantages of accurate control, high precision, safety and reliability.