DENTAL PROSTHESIS PROCESSING DEVICE AND METHOD OF MANAGING PROCESSING TOOL OF THE SAME

1 . A dental prosthesis processing device comprising:

one or more processing tools for processing a workpiece into a prosthesis of a predetermined shape;

a spindle on which the processing tools are replaceably mounted and that is spatially movable in position;

a processing tool replacement obstruction part located in close proximity to the processing tools and/or the spindle and configured to obstruct the processing tools from being replaced; and

a controller configured to determine whether to replace the processing tools,

wherein, in response to determining that replacement of the processing tools is not necessary, the controller brings the processing tools and/or the spindle and the processing tool replacement obstruction part close to each other, thereby preventing the processing tools from being replaced, and

wherein, in response to determining that the replacement of the processing tools is necessary, the controller moves the processing tools and/or the spindle and the processing tool replacement obstruction part away from each other, thereby allowing a user to replace the processing tools.

2 . The dental prosthesis processing device of claim 1 , wherein the processing tools are burs for grinding the workpiece.

3 . The dental prosthesis processing device of claim 1 , wherein whether to replace the processing tools is determined according to one or more selected from a group consisting of the number of uses of the processing tools, types of the processing tools, and a material of the workpiece processed by the processing tools.

4 . The dental prosthesis processing device of claim 1 , wherein a workpiece fixing part on which the workpiece is mounted is used as the processing tool replacement obstruction part.

5 . A method of managing processing tools of a dental prosthesis processing device comprising one or more processing tools for processing a workpiece into a prosthesis of a predetermined shape; a spindle on which the processing tools are replaceably mounted and that is spatially movable in position; a processing tool replacement obstruction part located in close proximity to the processing tools and/or the spindle and configured to obstruct the processing tools from being replaced; and a controller configured to determine whether to replace the processing tools, the method comprising:

determining by the controller whether to replace the processing tools;

in response to determining that replacement of the processing tools is not necessary, preventing the processing tools from being replaced by bringing the processing tools and/or the spindle and the processing tool replacement obstruction part close to each other by the controller, and

in response to determining that the replacement of the processing tools is necessary, allowing a user to replace the processing tools by moving the processing tools and/or the spindle and the processing tool replacement obstruction part away from each other by the controller.

6 . The method of managing processing tools of a dental prosthesis processing device of claim 5 , wherein the processing tool replacement obstruction part is located in close proximity to a front or side of the processing tools and/or the spindle and obstructs the processing tools from being removed from the spindle by blocking a path along which the processing tools are separated from the spindle or obstructing an entry of a tool for separating the processing tools from the spindle.

7 . The method of managing processing tools of a dental prosthesis processing device of claim 5 , wherein an approach and a move-away of the processing tools and/or the spindle to and from the processing tool replacement obstruction part are performed by moving the processing tools and the spindle, moving the processing tool replacement obstruction part, or moving both the processing tools and the spindle and the processing tool replacement obstruction part.