Electromechanical NC Joining Module NCFB – a Low-Cost Alternative

Kistler's electromechanical joining modules facilitate automation of force-displacement monitored joining and press-fitting processes. The new NC joining module NCFB Type 2160A... has been specially designed for standard joining processes and is an en-hancement of the existing product range. With its cost-optimized design, it offers a more favorable price/performance ratio. The piezoelectric force sensor integrated into the robust case offers a choice of two predefined measuring ranges, 50 kN and 25 kN, for precision force measurement.

Even deep end points such as the position of bearings in half-shell gear boxes can be easily reached with a 400 mm stroke. The speed of up to 150 mm/s offers a quick return stroke and hence a short machine cycle, even for a long idle stroke. The use of the absolute encoder, which is part of the standard equipment on all Kistler NC joining modules, eliminates the need for reference point determination even during operation.

The NC Compact Firmware (2159A…), which is integrated into the servo controller, is perfect for simple force displacement evaluation and documentation of standard joining tasks with the NC joining module NCFB. With extremely low investment and mounting costs, it facilitates integration into the customer’s existing control environment.

The Operating Panel (2158A) is used for parameterization and visualization of a standard joining process and for data backup. It is not required for ongoing operation. It has 16 different programs for optimum flexibility in the joining process. These contain functions such as measuring range switchover, fast shutdown, force control, active deflection compensation which eliminates the effect of bending of the customer's assembly, intermediate positioning and evaluations with up to three analysis windows.

The force-displacement monitoring unit DMF-P A300 NCF Type 4734A... can be used as an alternative to the NC Compact Firmware. With its wide range of analysis win-dows, it can evaluate the force displacement curves of virtually any application. More-over, it allows comprehensive documentation of curve developments and the associated target and actual values.

Kistler Group

Kistler's core competence is the development, production and use of sensors for measuring pressure, force, torque and acceleration. Kistler's know-how and electronic systems can be used to prepare measuring signals for use in analyzing physical processes, controlling and optimizing industrial processes, improving product quality in manufacturing and improving performance in sports and rehabilitation.

Kistler offers a comprehensive range of sensors and systems for engine development, automotive engineering, plastics and metal processing, installation technology and biomechanics.

A worldwide sales presence in the form of 25 group companies and 30 distributors ensures customer proximity, application support on an individual level and short lead times.

With a staff of about 1 000, the Kistler Group is one of the world's leading providers of dynamic measuring instrumentation. The Kistler Group achieved turnover of 215 million Swiss Francs in the 2008 financial year.