Component mounting machine

A component mounting machine comprising:

• a camera configured to capture an image of a component held by a suction nozzle;
• an image processing section configured to process the image captured by the camera, recognize a shape of the component, and measure shape data of the component;
• and
• a control section configured to control operation of mounting the component on a circuit board in a case of determining that the component is normal based on whether a deviation amount of a measurement value of the shape data of the component is within a specified allowable value by comparing the measurement value of the shape data of the component measured by the image processing section with image-processing-use component shape data,
• wherein
• the control section is configured to compare the deviation amount of the measurement value of the shape data of the component when the deviation amount of the measurement value of the shape data of the component exceeds the allowable value to a retry determination value that is larger than the allowable value, and (1) determine the component is abnormal and discard the component to a specified discard location if the deviation amount of the measurement value of the shape data of the component exceeds the retry determination value, and (2) if the deviation amount of the measurement value of the shape data of the component is equal to or less than the retry determination value, perform retry image processing of capturing an image of the component held by the suction nozzle again using the camera, remeasuring the shape data of the component, and determining whether the component is normal based on whether the deviation of the new measurement value is equal to or less than the allowable value.