The invention relates to a motor spindle comprising at least one spindle drive which can be supplied with energy and/or operating supplies via at least one feed line. This motor spindle has a fixedly installed first coupling element of a multi-coupling, to the ports of which the feed lines for transmitting energy and/or operating supplies are connected. The invention also relates to a machine tool comprising such a motor spindle, wherein the machine tool has a second coupling element of the multi-coupling. On this second coupling element, the respective complementary ports for transmitting energy and/or operating supplies are arranged.

The present invention relates to a machine tool including a ram spindle and a tool holder, and provides a machine tool comprising: a tool holder including at least two inserts; and a ram spindle capable of fixing the tool holder in a clamped state or rotating the tool holder in order to change the position of the insert, such that the position of the insert can be quickly changed, thereby enabling an improvement in productivity and precision and a reduction in product costs.

Apparatus for enabling determination of position of an object, the apparatus comprising: a baseplate configured to support a fixture for retaining the object, the base plate comprising: a body comprising: a first connector configured to connect to a second connector of the fixture; and a plurality of first reference marks distributed on at least a first surface of the body.

The invention refers to a chuck pallet (1.3) with solid groove-sidewalls (2.3) for clamping chucks (1.1), whereby the x-y-references (2.5) of the chuck pallet (1.3) are allocated in the same plane (2.1) as the z-references (2.1) and the x-y-references (2.5) are also allocated at the solid groove-sidewalls (2.3). The solid groove-sidewalls (2.3) have thereby a tapered profile.

A quick-change system includes an exchange tool with a ball receiving opening, a receiving part with a receiving opening for receiving the exchange tool, and a ball catch for temporarily fixing the exchange tool on the receiving part. The ball catch includes a sleeve that is closed on one side and a spring-mounted press-ball arranged in the sleeve for manually engaging and disengaging with the ball-receiving opening. In an example embodiment, the sleeve has an axis of symmetry, the spring-mounted press-ball is movable along the axis of symmetry, and the ball-receiving opening has a central axis extending parallel to the axis of symmetry when the receiving part is engaged with the exchange tool.