End face polishing device for optical fiber ferrule

An end face polishing device for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion, the end face polishing device for optical fiber ferrule comprising:

• a bearing portion for allowing the polishing plate to rotate relatively around the polishing drive shaft and to move relatively to the polishing drive shaft in an axial direction;
• a polishing plate guide supporting portion for movably supporting the polishing plate on a base portion to apply the polishing pressure to the holding portion by allowing the polishing plate to move in the axial direction;
• a pressing drive source for outputting a driving force to apply the polishing pressure;
• and
• a pressing force transmission mechanism for transmitting the driving force output from the pressing drive source as a pressing force in an axial movement direction of the polishing plate, wherein
• a drive source to rotate the polishing drive shaft is fixed on the base portion.

An end face polishing device for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion, comprising:

• a holding portion guiding support part for movably supporting the holding portion on a base portion to apply the polishing pressure to the polishing plate by allowing the holding portion to move in an axial direction;
• a pressing drive source for outputting a driving force to apply the polishing pressure;
• and
• a pressing force transmission mechanism for transmitting the driving force output from the pressing drive source as the pressing force in an axial movement direction of the holding portion, wherein
• the holding portion guiding support part has axial movement guides,
• one end side of each of the axial movement guides is joined to a post for attaching a polishing jig used for fixing the optical fiber ferrule, and
• each of the axial movement guides is movably supported by the base portion to serve as a part of the pressing force transmission mechanism for transmitting the pressing force from the other end.