A machine tool has a frame, a tool spindle with a tool holder, a workpiece holder and a protective bellows. The tool spindle and the workpiece holder are movable relative to one another in at least two translatory axes in a working space. The working space is delimited by at least one partition wall, which has at least one travel opening and, adjacent to the travel opening, a mounting collar, which surrounds the travel opening at least partially. At least the tool spindle or the workpiece holder is coupled to the frame through the travel opening. The protective bellows has a mounting edge adapted to the mounting collar, which is provided with a tension member. The protective bellows is mountable on the mounting collar in a relaxed state of the tension member and is secured to the mounting collar in a tensioned state of the tension member when in a mounted state.

A machine tool has a frame, a tool spindle with a tool holder, a workpiece holder and a protective bellows. The tool spindle and the workpiece holder are movable relative to one another in at least two translatory axes in a working space. The working space is delimited by at least one partition wall, which has at least one travel opening and, adjacent to the travel opening, a mounting collar, which surrounds the travel opening at least partially. At least the tool spindle or the workpiece holder is coupled to the frame through the travel opening. The protective bellows has a mounting edge adapted to the mounting collar, which is provided with a tension member. The protective bellows is mountable on the mounting collar in a relaxed state of the tension member and is secured to the mounting collar in a tensioned state of the tension member when in a mounted state.