Press-in devices
FROM THE MODULAR SYSTEM
Press-in devices
From the simple workshop press to the high-tech press-in device
Everything from a modular system
Due to the variety of the applications very different demands are made on hydraulic press-in
devices for linear joining.
The applications vary from occasional simple
pressing in and out of component in the workshop to strictly monitored series production with
optimised assembly time.
Of course also the workpiece, the spectrum of
the workpiece to be joined and the workpiece
handling have significant influence on the design
of the press-in device.
Modular system
The modular system consists of matched components that can be combined according to the
requirements.
Based on our long-standing experience in the
manufacture of most different press-in devices,
we developed a modular system for press-in
devices, that covers a large part of the applications.
Advantages
• Cost reduction by standardisation
• No cost and time-consuming project planning
• Short delivery times
• Easy retrofitting of functions or components
• Sales of individual components
And if somewhat should be adapted or supplemented as per customer’s specification, this can
still be realized in the proven manner on a project
basis.
When designing and selecting the components
for the modular system particular attention was
attached to quality and ergonomics.
Quality
Quality means deformation-resistant press
frames, durable hydraulic components, solid
technology, matched components, clear interfaces and high-quality sensor systems.
This results in low error rates, process safety, a
maximum of availability, flexibility and economic
efficiency.
The performance spectrum comprises:
• Press forces up to 100 kN
• Strokes up to 400 mm
• C-frame and portal design
• 3 different sensor system expansion stages
In addition moving carrier plates can be projected
for workpiece feeding, workpiece handling
systems and safety devices such as protection
cabins or light grids.
We would be glad to advise you on the appropriate
combination of components for your application.
Ergonomics
Ergonomics means easy placing of the components at the joining point, good accessibility
of the operating elements, clear arrangement
of the components and simple tool change.
This results in motivation of the employees,
less fatigue when working and thus a higher
quality of work.
Workpiece carrier and press tool
For the fixation and alignment
of the customer’s workpiece
carrier and press tools, base plate and
contact piece have always the same interfaces.
Force and stroke classes
Maximum press forces: 40, 63 and 100 kN - Strokes: 100, 200, 300 and 400 mm
Press-in cylinders are used in 3 variants as a function of the expansion stage of the sensors.
Recommended minimum press force: approx. 10 kN
Sensors
Expansion stage 1
The press force is determined by the adjustable
pressure. After short stop time, the control switches to return stroke.
Expansion stage 2
Effectiveness and safety due to rapid/creep
speed.
To save time the press-in cylinder moves in rapid
speed to effect the advance and return stroke.
By means of an adjustable sensor at thepress-in
cylinder it is determined how far before the workpiece switching over to creep speed takes places.
By means of a second sensor, the stop position
for the return stroke is determined. Thus unnecessary strokes and wast of time are avoided.
Precise foundation
The base plate is provided with a
centre hole Ø 50 mm with fit H7,
an alignment hole Ø 18 mm
with fit H7/6mm deep
as well as 4 fixing threads M10
in the drilling pattern 140 x 140 mm.
Expansion stage 3
Comfort, safety and quality due to force and
stroke monitoring.
The functions of expansion stage 2 can be comfortably adjusted by means of the touch panel.
The stroke sensors integrated in the cylinder allow
to press to position with a precision of 0.1 mm.
Force-stroke-curves can be predefined as basis
for the monitoring of the joining process.
Deviations are recorded, errors can be acknowledged as an option. Thus a proof for the quality
of the joints can be furnished.
The force measurement is made directly at the
frame and not indirectly by pressure measurement. Thus measuring errors due to side loads
and friction are avoided.
The sensor is not located in the working area,
thereby defects are almost excluded.
Control centre
All controls are programmable.
Due to the separation of basic module and
monitoring module, there is a large flexibility
for the adaptation or the expansion of the
press-in devices.
Quick and flexible
Alternatively quick-change tooling systems are available with contact piece in pendulum or fixed
version. Both variants have the same length so that also in this case flexibility is given for the
adaptation to different workpiece requirements.
The contact piece has 4 counterbores M6 in the hole circle Ø 84 mm.
For the alignment a counterbore Ø 20 mm with fit H7 is used.
Sturdy frames
Portal frames up to 100 kN
Rigid and deformation-resistant.
Basic heights (base plate up to contact piece):
250 to 600 mm in steps of 50 mm
Clear width (free space for the workpiece):
360 to 460 mm as per force step
C-frames up to 63 kN
Advantageous for material flow.
Basic heights (base plate up to contact piece):
300 or 400 mm
Depth (free space for the workpiece): 180 mm
Comfortable control
The evaluation of the sensors
of expansion stage 3 is made via
a workshop-compatible touch panel,
that is also used for the complete operation
of the press-in device and the monitoring of
the measured values of the press-in process.
Solid basis
Table frame for safe and accessible
arrangement of all components.
Due to the insertion of the base plate into the table frame,
workpiece handling is considerably improved.
The two-hand operation is inserted in the table
frame to avoid points of possible collision
for passing persons or vehicles.
The table height of 900 mm also enables
ergonomic working for tall persons.
The dimensions are suitable for the
integration into existing workbench systems.
Alternatively wooden and steel table plates are available.
Dimensions: 1250 mm of width x 800 mm of depth
x 900 mm of height
Safety First
The proven two-hand operation meets the
current demands on work safety.
In addition to the operating push-buttons emergency stop and different pilot lights are mounted.
Powerful and persistent
The hydraulic power unit supplies the press-in
cylinder with hydraulic oil and controls the
press-in process by means of their valves. With an
operating pressure of up to 250 bar the required
press-in force is generated.
The generous dimensioning enables a trouble-free
use under continuous operation.
Applications...
Assembly of pneumatic cylinders
Pressing-in of bushings for cylinder guide rods
• Versatile use
for 186 different cylinder types
• Precision of press-in depth of < ± 0.1mm
• Considerable reduction of set-up times
Workshop press for repair works
Pressing in and out of components
• Versatile usability
• C-frame for optimum accessibility
• Simple operation with two-hand release
Assembly of hydraulic components.
Pressing in of sophisticated, slim components
• With moving carrier plates for workpiece supply
• Automatic sequence with pneumatic
door operation
• Complete protection cabin with safety protection
strip
Assembly of heavy
hydro-dynamic couplings
Pressing in of coupling components
Workshop press for assembly operations
• simple handling for heavy components
due to driven moving carrier plate
Simple workshop press
Joining of very different components
• Safety due to the distance to the workpiece
for general assembling aids
• Two-hand safety control
• Common sequence control of
press-in device and moving carrier plate
• Portal frame provided by the customer
• Rapid/creep speed control
• Simple adjustment and retrofitting
• Use of a press-in cylinder
from the modular system
Assembly of aluminium pistons
Joining of divided aluminium pistons
• Triple press-in device
• Alternative actuation of the three press axes
• Gap-free feed up of both components
Assembly
of planetary gears
Pressing in of gear shafts
in gear cases
• Handling process
combined with joining process
• Flexibles complete system
for 12 different gear sizes
• mobile C-frame with assembly lifting and
swivel table
Assembly and disassembly
of rail brake cylinders
Tense and release
pressure spring packs
• Transmission of high forces
• Restoring forces of the pressure springs
are held under defined condition during
extension and retraction
• always smooth, jerk-free cylinder movement
Mobile press-in device press device
for the automotive industry
Joining of versatile components
• Movable version
• Flexible usability
Assembly of water pumps
for automobiles
Pressing in of single component
Römheld GmbH
Römheldstraße 1-5
35321 Laubach
Germany
Tel.: +49 (0) 6405 / 89-0
Fax: +49 (0) 6405 / 89-211
E-mail: [email protected]
www.roemheld.com
• Control and documentation of the press-in force
• Quality improvement of the pressed joints
• Safe and simple operation
Press-in devices 09-10 E · Subject to change without prior notice.
• Quality assurance with filing