Position flexible clamping elements

Hydraulic clamping elements for "floating" clamping of workpieces

double acting
single acting with spring return

Series  (3)

Items  (6)

  1. low-block clamping cylinder – piston Ø 20 mm, stroke 10 mm – max. 500 bar, as per data sheet B1.711
  2. threaded-body cylinder – piston Ø 20 mm, stroke 10 mm – max. 500 bar, as per data sheet B1.711
  3. block cylinder – piston Ø 20 mm, stroke 10 mm – max. 500 bar, as per data sheet B1.711
  4. clamping force 7 kN, retention force 4 kN – stroke 6 mm per clamping jaw – max. 250 bar, as per data sheet B1.732
  5. clamping force 7,5 kN, retention force 10 kN – pendulum range ± 4 mm, hose at the back – max. 250 bar, as per data sheet B1.733
  6. clamping force 7,5 kN, retention force 10 kN – pendulum range ± 4 mm, hose at the side – max. 250 bar, as per data sheet B1.733

Description

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

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 clamp B1.732

Position flexible clamping claws B1.733

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.

position flexible clamping claw B1.733

Animation Position flexible clamping claw

Use of position flexible clamping claws B1.733

in a double clamping fixture four oil sumps for cars.
Each oil sump is additionally clamped and supported at a forth clamping point.

Hydro-cylinder with locking piston B1.711

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.

hydro-cylinder with locking piston B1.711

PDF Data sheets

PDF

Hydro-Cylinder with Locking Piston single acting – with spring return – max. operating pressure 500 bar

Catalogue sheet B1.711
PDF

Position flexible clamps separate locking port – double acting – max. operating pressure 250 bar

Catalogue sheet B1.732
PDF

Position flexible clamping claws separate locking port – with optional position monitoring – double acting – max. operating pressure 250 bar

Catalogue sheet B1.733

Application examples

Application videos:

Use of position flexible clamping claws B1.733

In a double clamping fixture four oil sumps for cars.
Each oil sump is additionally clamped and supported at a forth clamping point.

use of position flexible clamping claws B1.733 for oil sumps for cars
use of position flexible clamping claws B1.733 for oil sumps for cars

Position flexible clamp B1.732

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 clamp B1.732 for "floating" clamping of a power unit support

Threaded-body cylinder with locking piston B1.711

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.

threaded-body cylinder with locking piston B 1.711 : simple collet for ”floating clamping”