Work machine and mounting method

A work machine comprising:

• a tape feeder provided with taped lead components having multiple leads in an extended manner, the tape feeder configured to supply the taped lead components;
• a mounting head configured to mount the lead components supplied by the tape feeder onto a board by inserting the multiple leads into through holes provided on the board;
• an imaging device;
• and
• a control device,
• wherein the control device includes:
• an imaging section configured to image an identification object of the taped lead components fed by the tape feeder with the imaging device, the identification object being provided on each of the taped lead components fed by the tape feeder and capable of identifying the polarity of each of the multiple leads of each of the taped lead components,
• a determination section configured to
• determine an actual polarity disposition, which is the polarity disposition of each of the multiple leads in the taped lead components fed by the tape feeder, based on image data of the identification object obtained by the imaging section imaging the identification object with the imaging device, and
• determine whether the actual polarity disposition matches a set polarity disposition, which is the polarity disposition of each of the multiple leads of the taped lead components fed by the tape feeder set in advance, and
• a mounting section configured to
• mount the lead components, with the mounting head, by inserting the multiple leads of the lead components into the through holes of the board with a set mounting angle, which is a mounting angle set in advance, when the determination section determines that the actual polarity disposition and the set polarity disposition match each other, and
• mount the lead components, with the mounting head, by inserting the multiple leads of the lead components into the through holes of the board with a mounting angle rotated 180 degrees from the set mounting angle when the determination section determines that the actual polarity disposition and the set polarity disposition do not match each other.