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Position flexible clamping elements

Hydraulic clamping elements for "floating" clamping of workpieces

double acting

single acting with spring return

max. clamping force: 4.2 .. 18 kN
max. load force 4 .. 24.5 kN
stroke/pendulum range: 4 .. 12 mm
max. operating pressure: 250 .. 500 bar

Series Data sheet Technical data
B1.732
B1.732
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B1.732 Position flexible clamps

 

separate locking port

double acting

max. operating pressure 250 bar

max. clamping force: 7 kN
max. retention force: 4 kN
stroke per clamping jaw 6 mm

B1.733
B1.733
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B 1.733 Position flexible clamping claws

 

separate locking port

with optional position monitoring

double acting

max. operating pressure 250 bar

max. clamping force: 7.5 kN
max. retention force: 10 kN
pendulum range: ±4 mm

I4.130
I4.130
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I4.130 Fixture clamps, position flexible

 

max. clamping force 8 kN

jaw width 40 mm

double acting

max. operating pressure 250 bar

max. clamping force: 8 kN
max. retention force: 10 kN
jaw width: 40 mm
clamping stroke: 2x 8 mm
max. flow rate: 17 cm³/s

B1.711-1
B1.711-1
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B1.711 Threaded-body cylinders with locking piston

 

single acting

with spring return

max. operating pressure 500 bar

Threaded-body cylinders
max. clamping force: 5 kN
max. retention force: 10 kN
max. load force: 24.5 kN
piston diameter: 20 mm
stroke: 10 mm

B1.711-2
B1.711-2
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B1.711 Threaded-body cylinders with locking piston

 

single acting with spring return

max. operating pressure 500 bar

Block cylinders
max. clamping force: 5 kN
max. retention force: 10 kN
max. load force: 24.5 kN
piston diameter: 20 mm
stroke: 10 mm

B1.711-3
B1.711-3
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B1.711 Low-block clamping cylinders with locking piston

 

single acting

with spring return

max. operating pressure 500 bar

Low-block clamping cylinders
max. clamping force: 5 kN
max. retention force: 10 kN
max. load force 24.5 kN
piston diameter: 20 mm
stroke: 10 mm

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figure 1: position flexible clamp B1.732


 
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figure 2: position flexible clamping claw B1.733






























 
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figure 3: Fixture clamp, position flexible clamping I4.130




 
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figure 4: hydro-cylinder with locking piston B1.711
 

Application
Position flexible clamping elements can be used for supporting and clamping of unstable workpiece sections. They adapt themselves to the position of the clamping point without deforming them. They cushion vibrations and compensate machining forces from all directions.

Position flexible clamp B1.732 (figure 1)
The position flexible clamp is a small vice with two movable jaws, which are operated by a common hydraulic port. Independently of its position within the clamping area, the workpiece will be clamped nipper-like (floating).
By means of a separate locking port, both jaws are hydraulically locked.

Position flexible clamping claws B1.733 (figure 2)
The position flexible clamping claw consists of an U-shaped mounting body and the displacably embedded clamping unit with oil supply by two short high-pressure hoses with swarf protection.
In the movable clamping unit a double-acting hydraulic cylinder is integrated, whose clamping force is introduced through the clamping lever by 180° into the workpiece support.
This support is height-adjustable to clamp workpieces of different thickness. After the clamping process the still displaceable clamping unit will be locked by a single-acting cylinder in the mounting body.
To control the clamping lever an inductive or pneumatic position monitoring can be delivered.

Animation Position flexible clamping claw

Use of position flexible clamping claws B1.733 (figure 1-2)
in a double clamping fixture four oil sumps for cars.
Each oil sump is additionally clamped and supported at a forth clamping point.

Fixture clamp, position flexible clamping I4.130 (figure 3)
Position-flexible fixture clamps can additionally clamp and support a workpiece, which is already positioned and clamped in fixed stops, at unstable workpiece sections.
The fixture clamp with position-flexible clamping function consists of a very slim basic body with 2 integrated hydraulic cylinders. The piston forces are transmitted by two channels to the two clamping slides that can be moved independently of each other. During clamping both clamping slides contact the workpiece nearly without force. Only after that the clamping pressure and thereby the clamping force increases. Due to wedging of the clamping slides these are protected against displacement. Thereby the workpiece is floatingly held without deformation.

Hydro-cylinder with locking piston B1.711 (figure 4)
Hydro-cylinders with locking piston are single acting plunger cylinders. When pressurising the element, the piston will be expanded
and locked in the cylinder body.
The hydro-cylinder with locking piston does not only clamp the workpiece, but compensates also the machining forces which are up to five times higher and are directed against the clamping force.

 

Seal kits
for hydraulic elements

data sheet S0.001

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figure 1: clamping jaw with swivel contact bolt
 
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figure 2: adaptor plate for fixture clamps
 
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figure 3: adaptor plate for fixture clamps
 

Clamping jaw with swivel contact bolt (figure 1)
for position flexible clamps B1.732
data sheet B1.732

Inductive or pneumatic position monitorings
for position flexible clamping claws B1.733
data sheet B1.733

Adaptor plate (figure 2 – 3)
for fixture clamps
=> see on the respective PDF data sheets
Fixture clamps

 
show
figure 1: use of position flexible clamping claws B1.733 for oil sumps for cars
 
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figure 2: use of position flexible clamping claws B1.733 for oil sumps for cars


 
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figure 3: position flexible clamp B1.732 for "floating" clamping of a power unit support
 
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figure 4: fixture clamp with fixed jaw combined with a position flexible fixture clamp I4.130
 
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figure 5: threaded-body cylinder with locking piston B 1.711 : simple collet for ”floating clamping”
 

Application videos:

Use of position flexible clamping claws B1.733 (figure 1-2)
in a double clamping fixture four oil sumps for cars.
Each oil sump is additionally clamped and supported at a forth clamping point.

Position flexible clamp B1.732 (figure 3)
The figure shows a position flexible clamp for ”floating clamping” of a self-supporting arm of a power unit support of the automotive industry, which has been fixed in its position by means of swing clamps as per data sheet B 1.880 and B 1.891.

 

 

Position flexible fixture clamp I4.130 (figure 4)
Fixture clamp with fixed jaw combined with a position flexible fixture clamp - clamping fixture for a pedal of a truck.

 

 

 

Threaded-body cylinder with locking piston B1.711 (figure 5)
Simple collet for ”floating clamping”
Two clamping bars with threaded-body cylinders with locking piston are fixed on a base plate and hydraulically connected by drilled channels. The axial block fixed in the centre is used as guide for both clamping jaws. An installed return spring moves the clamping jaws to its off-position.
"Floating" clamping, i.e. the uniform and tongs-type contact at the workpiece independent of its position is possible due to the hydraulic pressure compensation between the cylinders. Only different spring forces can influence the uniformity. After the pressure increase, the two locking pistons avoid a ”further floating” of the clamping point.