| 摘要 |
Fitting head for fitting substrates with electrical components in a fitting device, fitting device, method of operating the fitting head in the fitting device A fitting head (2) for fitting substrates (38) with electrical components (4) in a fitting device has a guide body for at least one holder (5) for the components (4), the holder (5) being mounted on said guide body so as to be movable in a stroke direction (z) perpendicular to the substrate (38). The holder (5) is movable downwardly in the direction of the substrate from an upper holding position. The holder (5) is electromagnetically couplable to a stroke actuator that is movable in the perpendicular direction (z), such that a stroke force directed downwardly onto the holder (5) is transmissible via a magnetic adhering force. The adhering force acts on an end face (46) of a connectable electromagnetic coil part (34, 34') which is movable in the stroke direction by the stroke actuator. A ferromagnetic counterpart is placeable on the end face (46) and liftable from the end face (46). The power supply to the coil part (34, 34') is variable such that, before the component (4) is deposited on the substrate (38), the magnetic adhering force generated by the coil part (34, 34') is settable to a value that corresponds to a specified depositing force. Directly after the deposition and the reaching of the preset depositing force, the ferromagnetic counterpart lifts off the end face (46). In the process, the inertia forces of the stroke actuator are fully decoupled and the fitting procedure can be correspondingly accelerated. |
