ELECTRONIC COMPONENT MOUNTING DEVICE

PROBLEM TO BE SOLVED: To enable detachably mounting of a trial unit even when there is no margin in an installation space.SOLUTION: Guide rails 20 each of which has a T-shape in a vertical cross section are provided at a predetermined interval extending from a front side to a rear side on a feeder base 3. Guide grooves 21 formed at lower parts of both side surfaces of a component supply unit 5 are fitted to adjacent guide rails among the guide rails 20, thereby the component supply unit 5 can move while being guided in the front-to-rear direction and can be detachably attached to the feeder base 3. A trial unit 23 includes a first slide body 25 and a second slide body 26 at a lower part of a lower surface thereof. The first slide body 25 has guide grooves 24 at both side parts thereof to be fitted to adjacent ones of the guide rails 20. The second slide body 26 has a crank-shape in a vertical cross section and is guided by adjacent one of the guide rails 20. The trial unit 23 can move while being guided in the front-to-rear direction and can be detachably attached to the feeder base 3.