| 摘要 |
PROBLEM TO BE SOLVED: To improve detection accuracy of a sensor for detecting a component holder (nozzle) in a component holding head of a surface mounting machine.SOLUTION: A component holding head of a surface mounting machine includes a plurality of spindles arranged along a circumferential direction of a rotary head 40 that is attached to a head body so as to be rotatable in an R direction around a vertical axis of the head body, and a component holder 42 attached to a lower end of each of the spindles. The component holding head includes an optical sensor 30 of a reflection type that detects the component holder 42a that reaches a predetermined position by rotating in the R direction. The optical sensor 30 includes a light emission part that emits light toward a reflection surface 42b in an outer periphery of the component holder 42a, and a light receiving part that receives light reflected on the reflection surface 42b, the parts being arranged on the same axis. The optical sensor 30 is also arranged so that an optical axis of light emitted from the light emission part is displaced from a position of the reflection surface 42b on a vertical center axis of the component holder 42a to point to a position of the reflection surface 42b on a downstream side in a rotation direction in the R direction.SELECTED DRAWING: Figure 7 |
