Milling device with adjustable copying device

Milling device with adjustable copying device (14)， comprising: a milling cutter (11); a copying device (14) which is connected to the milling cutter (11) and which is designed to rest on a surface (13b) of a plate (13) in order to guide the milling cutter (11) relative to the plate (13) ; said copying device (14) including an annular member (15) which is deformable and which has an outer surface (15a) which in use on a working portion (15b) of the outer surface (15a) in contact with the surface (13b) the plate (13); wherein the copying means (14) also includes an adjusting device (16) for regulating the distance between the working section (15b) and the working axis (A); 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 in such a way that when in use， the working section (15b) changes its distance from the working axis (A) due to a rotation of the adjusting member (17).