Abstract: A tool holder for a machining tool includes a cooling means for a compressed air blowing tool and a device for cooling air compressed by a vortex tube device. The tool holder is generally cylindrical and the vortex tube device advantageously includes a plurality of vortex tubes placed annularly around the axis of the cylinder and the cold air outputs of which are directed at the tool held by the tool holder.

Abstract: The present invention relates to a tool holder, such as a reaming head (1), or a milling arbor, provided with a damping means (2) in the form of an elongated body, which is arranged in an end compartment (3) of the tool holder (1), which compartment is of appropriate shape and size, and closed at its end by a body (4) for receiving a reaming head or by a milling element. Tool holder characterized in that the damping means (2) is of the type presenting only radial absorption, and it is provided with at least one elastically deformable means (5), at least close to each end, where said elastically deformable means (5) extend between the envelope of the damping means (2) and the wall of the compartment (3) of the tool holder (1), and are clamped between the wall of the compartment (3) and the damping means (2), and where the ends of the damping means extend in the compartment (3) without stress.

Abstract: A tool holder for a machining tool includes a cooling means for a compressed air blowing tool and a device for cooling air compressed by a vortex tube device. The tool holder is generally cylindrical and the vortex tube device advantageously includes a plurality of vortex tubes placed annularly around the axis of the cylinder and the cold air outputs of which are directed at the tool held by the tool holder.

Abstract: The invention concerns a method and device for adjusting the fitting depth of a tool in a tool-holder, in particular in a tool-holder to be banded. The method is characterized in that it consists in performing a prior calibration of a sensing assembly (2) by positioning a sensing slide (4) of said assembly (2) into a bore (V) of a calibrating support (1) and by re-setting a viewing means of said sensing assembly (2), then in positioning the sensing assembly above a tool-holder and moving the adjustable stop of said tool-holder towards the sensing slide (4), so as to determine a travel thereof corresponding to the required fitting depth. The invention is applicable in the field of the environment of machine-tools, more particularly comprising tool-holders to be banded.

Abstract: A boring head, essentially consists of a body (1) provided with a housing (2) for receiving two tool-holders (3), capable of being radially driven via a moving device (4), and of element (5) for locking the tool-holders (3) in operational position. The boring head is characterized in that the element (5) locking the tool-holders (3) in operational position consists of a single clamping device simultaneously acting on the two tool-holders (3) and on the body (1). The invention is more particularly applicable in the field of machine-tool accessories, in particular digitally controlled machines, of machining plants and adaptable cells and workshops.