Servo driver with automatic stopping function

The invention discloses a servo driver with an automatic stopping function, which comprises a shell unit and a stopping block unit, wherein a containing opening is formed in the shell unit, the stopping block unit is arranged in the containing opening, a first guiding unit, a first stopping unit and a first stabilizing unit are arranged on the containing opening, and a second guiding unit, a second stopping unit and a second stabilizing unit are arranged on the stopping block unit; the first guiding unit and the second guiding unit are matched to form a guiding structure so as to realize assembly guiding of the shell unit and the stopping block unit; the first stopping unit and the second stopping unit are matched to form a stopping structure so as to realize assembly stopping of the shell unit and the stopping block unit; and the first stabilizing unit and the second stabilizing unit are matched to form a stabilizing structure, so that stable assembly of the shell unit and the stopping block unit is achieved