Patent ID: 8823791

Claim:
A component recognizing device provided to a head unit incorporating a component holding member capable of holding a component and configured to perform image recognition by taking an image of a held condition of the component by the component holding member, comprising: a linear motor having a stator including a bottom frame fixed to a lower portion of the head unit and a plurality of permanent magnets fixed to a bottom surface of the bottom frame, and a mover including a base plate provided at a position downwardly spaced apart from the bottom frame and a coil portion fixed to a top surface of the base plate and located under the permanent magnets; a pair of side frames fixed to the bottom surface of the bottom frame and located on opposite sides with respect to the coil portion; a pair of guide units having a pair of guide rails each fixed to a bottom surface of the respective side frames to extend in a predetermined moving direction and a pair of sliders each fixed to the top surface of the base plate of the mover and allowed to slide in the moving direction along the guide rail while a movement in a direction orthogonal to the moving direction is limited; and a scan unit having an imaging device for taking an image of the component held by the component holding member and fixed to a bottom surface of the base plate of the mover to be allowed to move in the moving direction with respect to the head unit by the guide units; wherein the linear motor drives the scan unit in the moving direction by an interaction of magnetic fluxes generated by the stator and the mover while generating an attraction force between the stator and the mover, and the stator is fixed to the head unit in a state where a bottom surface of the permanent magnets opposing the coil portion of the mover is faced downward or diagonally downward.