Importance

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Abstract

The invention relates to a modular spindle unit for forming a multi-spindle machining head (36, 47, 49) for a machine tool, wherein the spindle unit (01, 30, 54) includes at least one drive spindle (02), to which a tool (37) or tool carrier (51, 52) is attachable, and wherein the spindle unit (01, 30, 54) includes a module housing (08, 31) in which the drive spindle (02) is mounted so as to be freely rotatable and axially displaceable. The module housing (08, 31) is attachable to the machining head (36, 47, 49) together with other module housings (08, 31), wherein the spindle unit (01, 30, 54) includes at least one drive motor (03), with which a drive spindle (02) allocated thereto is drivable in rotary manner, and wherein the center axis of the drive motor (03) and the center axis of the drive spindle (02) extend coaxially and define a unit center axis (07). The spindle unit (01, 30, 54) includes at least one axial actuating device (05), with which a drive spindle (02) allocated thereto is axially drivable in the direction of the unit center axis (07), wherein the center axis of at least one axial actuating device (05) and the unit center axis (07) extend coaxially. The drive motor (03) is mounted in the module housing (08, 31) so as to be axially displaceable and can be displaced axially in the module housing (08, 31) along the unit center axis (07) together with the drive spindle (02) by driving the axial actuating device (05).

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First Claim