Servo presses for pushing and pulling applications
Electrically driven servo presses are ideal for applications such as press-fitting, joining, crimping, fastening or riveting because of their control options and variable stroke lengths. The RCP6 servo presses with stepper motor, which will be available soon, are designed for both push and pull movements.
All servo-electric presses from IAI have a battery-free absolute encoder. The thrust forces are between 60 N and 50,000 N, the stroke lengths between 100 mm and 520 mm. On some models, the thrust time is unlimited.
The SCON controller, which matches the RCS3 and RCS2 servo presses, is supplied with pre-configured press programmes. They can be modified and combined as required.
Precise press processes
The force control required for the precise press process is provided in all models by a load cell on the thrust rod tip. This load cell makes highly-precise positioning control possible, which means easy pressing force adjustment and position control. The repeat accuracy is +/- 0.01 mm.
The application software offers two selectable control modes: speed control or force control. Moreover, the stopping method can be chosen from four stop conditions – "position", "stroke", "load" or "incremental load".
High-resolution battery-less absolute encoder
The advantages of high-resolution absolute encoders lie in the reduced downtimes and thus lower production costs, because no home-return operation is required at start up or after emergency stop or faulty operation. The price corresponds to conventional incremental encoders.
If it is a battery-free absolute encoder, there is also no need for maintenance and replacement of the battery, which is used for position storage.
Advantages of battery-free absolute encoders
- home-return is not necessary.
- No external home sensor required.
- No workpieces need to be removed after an emergency shutdown.
- No battery change and therefore no battery disposal.
SCON controller with preconfigured press programs
The SCON controller for RCS2 and RCS3 servo presses has interfaces for all commercially available field bus networks, e.g. PROFINET, CC Link or Ethernet/IP. The comprehensive application software offers a total of eight different press assembly processes which include a comprehensive spectrum of press movements.
In positioning mode the positions (target position, speed, acceleration, etc.) can be specified in the controller via corresponding position numbers. For axis operation, each number can be specified externally via in/output signals.
In addition, there is a variety of integrated preventive maintenance functions. These include a warning signal for detecting motor overload. The temperature fluctuations in the motor are permanently monitored. The cycle count and the stroke passed is also recorded in order to monitor maintenance cycles.