Motion Architecture
Multi-gantry positioning systems execute high-speed surface mount assembly by utilizing independent drive mechanisms on a shared workspace. By implementing concurrent gantry travel, pick-and-place machines coordinate the movement of two or more placement heads simultaneously over the printed circuit board. This dynamic method eliminates the idle time where one head waits for another to finish its cycle.
Each gantry moves along its own linear tracks under the direction of a central controller, which computes the shortest non-conflicting path for each head during every pickup and placement sequence. It ensures that the mechanical heads operate at maximum physical speed without any structural lag or pause.
Throughput Scaling
Board assembly times drop when multiple placement heads populate components at the same time. While a single gantry system is limited by its sequential operation, concurrent gantry travel doubles the theoretical component placement rate per hour. The controller balances the workload by assigning components to each gantry based on feeder locations.
This optimization keeps both heads active.
Collision Avoidance
Shared workspaces require active software intervention to prevent physical interference between moving components. The motion controller monitors the real-time position of each head to ensure that paths never intersect during simultaneous moves. If two paths come close, the system adjusts the velocity of one gantry.
It avoids a crash without stopping the cycle.
