Operation panel for machine tool

An operation panel for a machine tool, comprising:

• a case that accommodates a cooling target object;
• a blower device that is disposed in the case;
• and
• an air guide member that forms an air flow passage in the case and that guides air blown out from the blower device toward the cooling target object through the air flow passage, wherein
• the air flow passage includes an expanded flow passage section in which a flow passage area of the air flow passage increases from an upstream side of an airflow toward a downstream side of the airflow, wherein
• the blower device includes a plurality of blade sections that is disposed so as to be spaced from each other in a circumferential direction about a predetermined axis and that rotates around the predetermined axis,
• the expanded flow passage section extends in the circumferential direction about the predetermined axis
• the blower device is an axial-flow type that blows out air in an axial direction about the predetermined axis, and
• the expanded flow passage section extends in the circumferential direction about the predetermined axis, at a position that faces the plurality of blade sections in the axial direction about the predetermined axis.