Overview

Overview

Clamping systems

Clamping systems

Eigenschaften SP SG SM SHST SK SZSB
Systemaufbau mechanisch mechanisch mechanisch hydraulischmechanisch mechanisch mechanischmechanisch
Spannelement Spannhülse Spannbüchse Spannmembran SpanndeckeTandemkegel Keilbacke SpannzangeSchrägolzen
Erreichbare Rundläufe 2 μm 4 μm 2 μm 2 μm4 μm 12 μm 4 μm12 μm
Standardexpansion bei Spann-Ø 100 0,1 mm 0,6 mm 0,6 mm 0,035 mm0,6 mm 5 mm 0,6 mm5 mm
Besonderheiten Einfache
Bauweise,
Verschmutzungs-unempfindlich

Sehr schlanke Bauweise möglich,
gleichmäßige Spannkraftverteilung,
hohe Spannkräfte

Verschmutzungsunempfindlich,
Eigenspannkraft,
Einfache Bauweise,
Verschmutzungsunempfindlich
Ausgleich von leicht konischen
Bohrungen,
zwei Spannbereiche
Große Hubwege möglich kurze Spannlängen
realisierbar
Große Hubwege möglich,
Axialkomponente

Clamping Sleeves System SP

Spannhülsen-Spannsystem SP 770x432px

Clamping Sleeves System SP

By applying an axial force the clamping sleeves move in direction of the force and expand radially. On the one hand this eliminates the clearance between clamping sleeve and body, on the other hand between clamping sleeve and workpiece. The workpiece is being clamped.

Depending on the tolerance of the workpiece, on the design of the clamping tool and of the clamping sleeves the system SP achieves concentricities of 0.002 mm (corresponding to 0.0001 inch).
Due to this high precision the system SP is not only used to clamp workpieces, it is also used to clamp tools.

The illustration on the left shows a cut of the clamping system in the unclamped and clamped mode.
 

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Collet Clamping System SZ

Spannzangen-Spannsystem SZ 770x432px

Collet Clamping System SZ

If the workpiece to be clamped has only a short clamping base or if the diameter to be clamped has a very large tolerance, system SZ is used.

By applying an axial force a slitted collet is radially expanded by a cone. Simultaneously an axial movement occurs. The workpiece is being clamped.

The illustration on the left shows a cut of the clamping system in the unclamped and clamped mode.
 

Buttress Thread Clamping System SG

Sägengewinde-Spannsystem SG 770x432px_2

Buttress Thread Clamping System SG

Depending on the type of design the clamping system SP only allows radial expansion up to tolerance class IT11. To bridge larger tolerances, system SG is used.

This is a slitted clamping bush with a special buttress thread. With this thread the bush is screwed onto the body. By applying an axial force the clamping bush moves in direction of the force. Due to the thread angle there is also a radial expansion. The workpiece is being clamped.

The axial component, which has an effect on the workpiece, increases the transferable torque and the stiffness of the clamping process. Consequently the workpiece is safely clamped even if it is machined with a large depth of cut.

The illustration on the left shows a cut of the clamping system in the unclamped and clamped mode.
 

Brochures

Twin Taper Clamping System ST

Twin_Taper-Clamping-System-ST

Twin Taper Clamping System ST

Based on proven clamping systems SP and SZ, EMUGE has developed the clamping system ST. It aims on clamping at workpiece bore holes, which are slightly imprecise.

The clamping system allows a safe and stable alignment of workpieces along rotation axis. Through staggered clamping of the two clamping levels, a reliable alignment of the workpiece along the bore hole is guaranteed. This operation mode enables the balance of conical bore holes with a few hundredth of a millimeter tolerance.

Developed for hard finishing, the new product is the ideal clamping system for honing or grinding of gearing. The special construction of the twin taper clamping system ensures an accuracy ≤ 5µm and allows the use of floating rests as end stop. Even internal gearing can be clamped without additional clamping elements.

A particular advantage in comparison to hydraulic expansion mandrels is the temperature insensitivity and by factor 3 larger insertion clearance of the workpiece. These characteristics allow the use of automatic loading and higher deviations of bore holes diameter.
 

Diaphragm Clamping System SM

Membran-Spannsystem SM 770x432px

Diaphragm Clamping System SM

In order to manufacture high precision gear wheels for example, it is very important that the eccentricity between pitch circle and seating bore is very small. For this purpose the diaphragm clamping system SM is used. For machining the seating bore it allows clamping of the gear wheel at the pitch circle.

The clamping element is a ring disk with primarily three clamping jaws. If the workpiece is thin-walled the diaphragm can also have four or six clamping jaws. These are either carved out of the diaphragm or they are screwed onto it.

By applying an axial force onto the diaphragm, it bends in the direction of the force. The clamping jaws simultaneously move axially and open in a radial direction. The gear wheel is being released.

Due to its flexibility the diaphragm returns to its initial position if the axial force is reduced or taken away. The gear wheel is being clamped in axial and radial direction.

The illustration on the left shows a cut of the clamping system in the unclamped and clamped mode.
 

Hydraulic Expansion System SH

Hydralik-Spannsystem SH 770x432px

Hydraulic Expansion System SH

If there is not enough room for a mechanical clamping system, the hydraulic system SH can be used. It also allows clamping long, thin-walled workpieces or a number of similar workpieces.

System SH is a closed system filled with hydraulic oil. A force is applied on it with a piston. The hydraulic pressure radially expands the thin-walled clamping zone. The workpiece or pieces are therefore clamped.

The illustration on the left shows a cut of the clamping system in the unclamped and clamped mode.
 

Brochures