Patent ID: 8267743

Claim:
A polishing head for use in a polishing machine for optical surfaces, comprising: an axis of rotation and a base body having a holding structure intended to be arranged at a polishing spindle and having a transport element intended to be held at a tool change arm, the transport element configured to contact a holding element of the tool change arm in the axial direction relative to the axis of rotation in order to perform a tool change, wherein the transport element is confiured to engage with two legs of the tool change arm forming a U shape and defining the holding element and a guiding part, at least one locking element is provided which is configured to contact the tool change arm such that the polishing head is in a circumferential direction U coupleable to the tool change arm such that when the polishing spindle begins to rotate, there is a necessary relative movement in the circumferential direction U between the polishing spindle and the polishing head to be fitted thereto, wherein the locking element is formed as a depression or elevation of a surface of the base body, which is limited to a partial circumference at least in the circumferential direction U, and is configured to receive the guiding part of the tool change arm in the depression or on the elevation.