Crossbar transfer presses/ Compact crossbar presses
(Compact-) Crossbar transfer presses are designed for flexible large-scale series production. Every forming stage has its own transfer module, so that a phase-shifted motion sequence is possible. Unlike standard vacuum transfer presses, with the compact vacuum transfer presses the press intervals are markedly less, so that direct parts transport is possible without necessitating intermediate storage.
Requirements of components/systems:
- Hydraulics for controlling assemblies such as e.g. clutches/brakes and die cushions
- As a rule controlled axes in order to attain the required precision and speed
- Simple standard power units for tensioning and clamping functions
- High-dynamic and accurate servo motors for the press transfer
- Pneumatic components for safe parts transport
- Central press main drive via longitudinal shaft for all slides
- Short tool change times thanks to swift adapting of the functions to the part being produced
- Selectable motion sequences go easy on the mechanics – high dynamic or gentle movement depending on the part and the tool being used
Rexroth solutions:
Press main drives in scalable power stages up to 630 kW
Optimization of transfer movements of every modular transfer module thanks to freely-programmable motion curves
Efficient production with increased speeds thanks to the system solution with motion control and servo drives
Hydraulic die cushions
Pneumatic slide cushions
Modular die cushions: co-ordinated and high-precision system for secure handling of the drawing process (MAC8 for master control, WRC valves)
Solutions for secure control of the clutch-brake combination
Hydraulic overload protection (S-Module )
High-precision Profiled rail systems for the slide guide
Ball rail systems and ball screw assemblies for the positioning device
Pneumatic components are to be found in the Pneumatics Catalog