Clamping force verification made easy

Posted on 13 Dec 2017 and read 622 times
Clamping force verification made easyWork-holding equipment manufacturer OK-Vise has announced two new systems for checking how tightly a component has been clamped, mindful that during automated machining in particular, the verification of holding force has always been a challenge.

The Finnish-made products are available in the UK through Salisbury-based 1st Machine Tool Accessories Ltd (

The accuracy of workpieces, especially those that are delicate or of thin-wall construction, can be adversely affected if the clamping pressure is too high.

Conversely, if the grip is too weak, there is a possibility of the part becoming dislodged during machining, risking operator injury, machine damage, tool breakage and scrap.

During automated hydraulic clamping, oil pressure is easy to measure, but other variables can also influence the clamping force.

In manual clamping systems, straightforward torque measurement is often used, although the relationship between torque and actual clamping force can be inaccurate.

As a result, the approach that OK-Vise has taken is tointegrate clamping-force measurements directly into the company’s modular Multi-Rail RM fixturing system.

An on-screen digital read-out of clamping pressure enables the operator to verify that a hydraulically secured component is held correctly.

If required, an optional SCADA (supervisory control and data acquisition) system can collect information from several displays over a standard Modbus connection, so that historical data can be viewed and adjustments made as necessary.

The system also allows the holding force of manually secured workpieces to be checked.

Here, a visual red dot in a clamp module gradually fades to grey as a spanner is turned, showing when the holding force is correct. Various modules are available for different clamping pressures.

Be seen in all the right places!

Indusmach Africa 2018 (Kenya) TCT Show 2018 Maktek Eurasia 2018 MTA Hanoi 2018 Advanced Engineering UK 2018 Metalex 2018 Indusmach Africa 2018 (Tanzania) Machine Tool Indonesia 2018 India Export News Steelfab 2019 Expo Manufactura 2019 MACH 2020

The online search from the pages of Machinery Market.

Mori Seiki NZS1500 CNC Turning Lathe Number 3 machine
Machine OEM:  Mori Seiki Co., Limited
OEM Machine Identification Number: NZS15GG0078 
Machine OEM: Mori Seiki Co., Limited OEM Machine Identification Number: NZS15GG0078 Application/...
Shield Powertrain Systems Company Ltd