Patent ID: 11940086
Assignee: YAMAZAKI MAZAK CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F | IPC F

Claim 0:
1. A table rotation device comprising:
a bearing assembly comprising:
a fixed ring provided around a rotation axis;
a movable ring provided coaxially with the fixed ring to face the fixed ring; and
rolling elements provided between the fixed ring and the movable ring so that the movable ring is rotatable about the rotation axis with respect to the fixed ring;

a table support member connected to the movable ring so as to fix a position of the table support member relative to a position of the movable ring;
a support block connected to the fixed ring so as to fix a position of the support block relative to a position of the fixed ring; and
a cooling block connected to at least one of the fixed ring and the support block such that the cooling block is in contact with both the fixed ring and the support block, the cooling block providing a cooling passage.