As a workshop grows from a single loading station to a dozen machine tools, one gantry robot can no longer cover every position, and multi-robot operation becomes the norm. Coordination is more than installing machines in the same bay — how tasks are divided in space and linked in time is decided by the scheduling logic, which directly determines line efficiency and stability.

Two division patterns are common. In zone-based division each robot serves one section of machines, with clear boundaries and simple logic, suited to layouts where parts flow between sections is limited. In process-based division, robots handle blank loading, transfer between rough and finish machining, and unloading, achieving higher utilization but demanding more from task assignment and handover reliability.

When robots share rails or work areas, avoidance and safety come first. A common approach is zone interlocking: the shared rail is split into segments and only one robot may occupy a segment at any moment. Anti-collision zones and software limits are set at the control level, so even if a scheduling command goes wrong, machines decelerate to a stop before entering a hazardous area.

Coordination is usually handled by a supervisory system. The scheduler builds a task queue from machine calls, buffer levels and priorities, then dispatches jobs to each robot. When a machine fails or a process backs up, tasks can be reassigned to neighboring robots or rerouted through an alternative path, reducing line-wide waiting and downtime.

Cycle-time matching decides the real benefit of coordination. Machining cycles differ between machines, and without buffering the fast process is dragged by the slow one. In practice, buffer stations or line-side storage between processes decouple them; tracking work in progress at each stage locates the bottleneck and provides a basis for later expansion.

Layout-wise, multi-robot schemes fall into two types: a shared seventh-axis ground rail, or independent gantries. Sharing a rail saves investment and covers more area but raises scheduling complexity; independent gantries never interfere and are reliable, but cost more in space and capital. Transfer station positions should be worked out against logistics routes at the design stage.

Multi-robot operation also needs information support. Each robot's status, alarms and utilization should be reported to the supervisory system in real time, letting staff see the whole line on one screen. When a fault occurs, the system stops the line or reroutes traffic according to a preset plan, preventing chain reactions from spreading.

In projects covering truss manipulators, gantry robots, truck loading, AS/RS and seventh-axis systems, Truman delivers complete solutions for multi-robot scenarios — from layout planning and anti-collision design to scheduling software — helping workshops scale up capacity while keeping a stable production rhythm.