Manual gripper changing system. © EGS Automation

In addition, the raw and finished part storage systems usually need to be converted or equipped with the correct component variant. If components are supplied and removed in workpiece carriers, the carriers are almost always component-independent. They are identical in terms of the fixture and only differ in terms of component-specific inlays. In the case of bulk material feeders or other magazines, the conversion of the raw and finished part storage systems is more complex, unless this can be avoided by a clever choice of universal holders.

Of course, the actual machining or production process must also be converted. This refers to the tool or plastic injection molding machine itself, for example. Before the actual manufacturing process can begin, a plausibility check is carried out via the electrical interface. This ensures that the robot sequence and all assembled parts of the machine match. When changing grippers, RFID chips are often used on the change parts to prevent the sequence program from starting if the gripper is incorrectly fitted. Other common safety precautions include obtaining explicit confirmation from the operator before restarting the machine and starting the robot at a reduced speed.

Set-up includes many parameters

The procedure for retooling is described in the system documentation, which must be supplied in the national language in accordance with the Machinery Directive. When new systems are handed over, EGS Automation carries out a detailed operator briefing in which, among other things, the topic of system conversion is trained and practiced using the documentation. For larger systems, step-by-step operator guidance via the system screen is also possible.

Good set-up concepts include durable and low-wear fastenings and fits. This ensures that the contact points still fit exactly even after many set-up processes. Ergonomics is also an important issue for the set-up process. If the gripper exceeds a certain weight, a manual tool change is only practical with aids, or an automatic change is carried out directly by the robot. The accessibility of the positions to be set up must also meet ergonomic requirements. An efficient set-up concept is rounded off by details such as clear identification of the change parts and the option of tool-free retooling or no need for special tools.