Abstract: 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.

Abstract: 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.

Abstract: The invention refers to a machine tool with only one work spindle which carries and drives an exchangeable machining tool. Furthermore a tool supply is provided which has tool tongs for receiving machining tools. For exchanging and replacing the machining tools a relative movement is provided. It is suggested to share out the tool supply between at least two partial magazines.

Abstract: The invention refers to a production line comprising at least two machine tools set up on the floor where at least between the two machine tools a device is provided for the conducting of rinsing and cooling fluids. The device is designed here essentially closed and sealed. It is equipped in the region of the machine tool with connections. The device is arranged on, respectively above, the floor or the level of the set-up surface of the machine tools.

Abstract: The invention relates to a machine or plant with at least one duct or duct profile for draining liquid media, in particular coolants or flushing liquids. The machine or plant is incorporated in a machine tool table. A seal is arranged between the machine tool table and the duct profile. The invention also relates to a method for assembling the duct with a seal.