Work machine

A work machine comprising:

• a work head to which a holding tool configured to hold a component is attached detachably and which is configured to perform work with the holding tool attached thereto;
• a holding tool station including multiple placement sections for placing multiple of the holding tools and configured to enable an exchange of the holding tools between the work head and the holding tool station by allowing the holding tool attached to the work head to be placed in any one of the multiple placement sections and allowing the holding tool placed in any other of the multiple placement sections to be attached to the work head;
• an imaging device configured to image the holding tool attached to the work head;
• and
• a control device configured to cause the work head to execute work using the multiple holding tools by enabling an exchange of the holding tools at the holding tool station, the control device comprises:
• a mounting section configured to attach any one of the multiple holding tools placed in the multiple placement sections to the work head at the holding tool station before the work head starts work;
• and
• a returning section configured to return the holding tool attached to the work head to the placement section corresponding to a set placement position of multiple placement positions regardless of the placement section where the holding tool was originally placed in executing an exchange of the holding tools at the holding tool station during execution of work by the work head, the set placement position determined so that a distance between the placement section and the imaging device is shorter for the holding tool to be exchanged more times at the holding tool station.