Milling device with adjustable copying device

Milling device with adjustable copying device (14)， comprising: - A milling cutter (11) which has cutting edges (12) which are arranged in a substantially annular position about a working axis (A) and which can be rotated about the working axis (A) around the edge (13a) of a plate (13 ) to mill; - A copying device (14) which is connected to the milling cutter (11) and which is designed to rest on a surface (13b) of the plate (13) in order to guide the milling cutter (11) relative to the plate (13) ; the copying device (14) including an annular element (15) which is coaxial with the milling cutter (11)， which is deformable and which has an outer surface (15a) which， when in use， on a working section (15b) of the outer surface (15a ) is in contact with the surface (13b) of the plate (13); wherein the copying means (14) also includes an adjustment device (16) coupled to the annular member (15) to regulate the distance between the working section (15b) and the working axis (A); characterized in that the setting device (16) contains at least one setting element (17) which can be rotated coaxially to the milling cutter (11) and about the working axis (A) and which has an outer edge (117) which is at a distance from the working axis ( A) which varies along a circumferential direction to the working axis (A) in such a way that when used as a result of a rotation of the adjusting member (17) about the working axis (A)， the working section (15b) changes its distance from the working axis (A).