Electromechanical Pin Brake

In production and intralogistics, intelligent systems that meet the demand for flexibility and automation are becoming increasingly important. In particular, automated guided vehicles (AGVs) that can transport loads from A to B entirely independently are conquering the industry. Besides, collaborative lightweight robots are in demand which automate simple tasks in feeding and assembly.

For such transport handling robots that operate in close contact with humans, braking systems are needed that stop the movement immediately in an emergency and guarantee a high degree of fail-safety.

The electromechanical pin brake is a combination of a specially designed linear solenoid and e.g. a gear wheel or a star wheel, which is mounted by the customer. In the energised state, the pin of the locking solenoid is retracted. In the event of braking, the pin brake is switched off and falls into the gear wheel, thus stopping the movement. The brake guarantees a high level of safety in an emergency and when the system is at a standstill. The travel distance until the application stops is mainly determined by the distance between the points of entry in the rotating counterpart. For low current consumption in the open state, the retracted position is reached once using overexcitation. Afterwards, the position is maintained with a lower holding voltage to save energy.

Frequent areas of application are:
 

• Joint brakes in collaborative robots (cobots)
• Pin brakes in Automated Guided Vehicles (AGVs) such as driverless forklifts