Industrial robot

An industrial robot comprising:

• a modular robot arm having a plurality of arm modules, a first and a second arm module each having a housing with a first connection side and a second connection side, the first connection side being configured to be controllably rotatable about a rotation axis relative to the second connection side,
• wherein a first interface side of an optical rotation transfer device is arranged in the first connection side of the first arm module and a second interface side of the optical rotation transfer device is arranged in the second connection side of the second arm module,
• wherein the first interface side and the second interface side face each other and are each formed substantially rotationally symmetrically and complementarily to each other, wherein the first interface side is connected to a first optical waveguide and the second interface side is connected to a second optical waveguide, the first optical waveguide and the second optical waveguide each being configured for guiding and transmitting optical signals,
• wherein the first interface side has an optomechanical rotary plug-in device with a first optical device and the second interface side has an optomechanical rotary mating plug-in device with a second optical device, which are set up to be rotatable with respect to one another and are mounted with respect to one another mechanically with a radial plain bearing and a plain bearing shell complementary thereto, and
• wherein the optomechanical rotary plug-in device and the optomechanical rotary mating plug-in device are formed as a cylindrical hollow system, wherein a gap is formed between the first optical device and the second optical device in the axial direction of the rotation transfer device, across which gap optical signal transmission of the optical signals takes place from the first optical waveguide to the second optical waveguide and vice versa from the second optical waveguide to the first optical waveguide.

An industrial robot comprising:

• a modular robot arm having a plurality of arm modules, wherein at least one arm module comprises a housing with a first connection side and a second connection side, wherein the first connection side is configured to be controllably rotatable relative to the second connection side about an axis of rotation,
• wherein an optical rotation transfer device is arranged between the first connection side and the second connection side or a second connection side of a further arm module, which has an optomechanical rotation interface with a first interface side and a second interface side which face each other and are each formed essentially rotationally symmetrically and complementarily to each other,
• wherein the first interface side has an optomechanical rotary plug-in device with a first optical device and the second interface side has an optomechanical rotary mating plug-in device with a second optical device, which are set up so as to be rotatable relative to one another and are mounted mechanically relative to one another with a radial plain bearing and a plain bearing shell complementary thereto,
• wherein the optomechanical rotary plug-in device and the optomechanical rotary mating plug-in device are formed as a cylindrical hollow system, wherein a gap is formed between the first optical device and the second optical device in the axial direction of the rotation transfer device, across which gap an optical signal transmission takes place, and
• wherein the rotary plug-in device comprises a first ferrule and the rotary mating plug-in device comprises a second ferrule, wherein the first ferrule is connected to a first optical waveguide and the second ferrule is connected to a second optical waveguide, the first optical waveguide and the second optical waveguide each being configured for guiding and transmitting optical signals, wherein the first ferrule and the second ferrule are each arranged rotatably relative to one another within a radial bearing sleeve at least in sections, wherein the radial bearing sleeve has an inner circumferential collar on which the first ferrule and/or the second ferrule may be axially seated.