Internal Tooth System

Clamping of gears, sliding gears, or drive parts in the internal tooth system with a Hydra expansion arbor

Here the system can clamp in the root circle, on the tip circle, or in the tooth flanks

External Tooth System

Clamping gears, sliding gears, or gear box parts in the tooth flanking with a Hydra expansion chuck

Here you can clamp in the root circle, on the tip circle as or in the tooth flanks


Illustration:
D - Clamping on the tip circle
E - Clamping in the root circle
F - Clamping in the flanks

Long connection bore

Clamping workpieces and tools with long receptacle bore or relieved bore such as with hob cutters.

Due to a lack of stability with long receptacle bores and the hazard of breaking the expansion sleeve, multiple clamping areas are used a for relieved bore. The clamping areas can be activated individually or in combination, as desired.

Example 1

Stepped Bores

Clamping workpieces and tools with stepped bores
Direct admission of the workpiece in stepped bores with two clamping areas

Each clamping area is adapted to the respective bore tolerance. The different clamping areas can be designed in such a manner that they can be pressurized individually or at the same time.

Example 2

Locating the workpiece in stepped bores with two clamping areas
(Clamping area 2 using a intermediate collet)

In the left locating bore of the workpiece th system clamps directly with clamping area 1. The front, larger locating bore of the workpiece can only be clamped via a slotted intermedia collet. Even in this case the different clamping areas can be laid out in such a manner that they can be pressurized individually or at the same time.

Example 3

Interrupted clamping surface

Clamping workpieces and tools with
interrupted clamping surface or special contour in the locating bore


Interior clamping of a gear in the locating bore through a Hydra expansion arbor or via a intermediate collet.

Example 4

Interior clamping of a workpiece with polygon contour by a Hydra expansion arbor or via a profiled intermediate collet.

Example 5

Normally clamping on a surface that is not rotationally symmetric, or in a bore that is not rotationally symmetric is impossible due the risk of a breakage.
However this process can be ensured by using a profiled intermediate collet.
In this regard it makes no difference whether a Hydra expansion arbor ist used for interior clamping or a Hydra expansion chuck is used for exterior clamping.

Extended Application Area

Clamping workpieces and tools via reduction collets on a Hydra expansion mandrel or in a Hydra expansion chuck

Hydra expansion mandrel with open reduction collet. By using reduction collets with different clamping diameters the application area is significantly extended.

Example 1

Hydra expansion chuck with built-in reduction collet. By using reduction collets with different clamping diameters the application area is significantly extended.

Example 2

Electronic clamping pressure control

Aufbau
1 Reading device with digital display
2 Red cable (transmission cable) - removable -
3 Black cable (Connection to ground) - removable -
4 Pressure detector
5 Hydra-Clamping-Arbor
6 Actuation wrench
7 Workpiece (Gearwheels)
8 Actuation screw

Function

A pressure sensor 4 is installed in the Hydra Expansion Arbor 5 from Hydraclamp.

To measure clamping pressure, the digital pressure measurement device "Power Control" 1 from Mytec-Hydraclamp is connected to Hydra Expansion Arbor 5 via magnetic contacts 2 + 3.

For hand-activated clamping via clamping screw 8 the clamping pressure in the Hydra Expansion Arbor 5 is displayed digitally in the bar on the display of the "Power Control" measuring device.

The clamping pressure, and thus the expansion of the Hydra Expansion Arbor, can always be precisely controlled and reproduced via this clamping or measuring process.

The "Power Control" system can also be used with automatic clamping. It is then directly connected to the machine controller.

"Power Control"

High-precision - controlled and finely-controlled clamping force for friction-free manufacturing.

The expansion range of Hydra expansion arbors and Hydra expansion chucks in normal design is maximum 0.3% of the respective clamping diameter.

This maximum expansion can lead to deformation and damage with thin-walled and sensitive workpieces. To eliminate this possibility, an electronic clamping pressure control, the"Power Control” system, was developed.

With this system the user can accurately control the clamping pressure and thus the expansion and adapt to the respective tolerances to be clamped.

This ensures that the required manufacturing quality will be achieved and maintained for the same workpieces and same processing. This is due to the fact that the same clamping pressure, and thus the same expansion can always be reproduced.

"Power Control" can be used in all hydraulic clamping systems from Mytec -Hydraclamp.

Talk to us when electronic clamping force control is involved.

Our engineers would be happy to support you.