Home > Next generation NC joining systems from SI Instrumrnts exploit piezoelectric force monitoring

Next generation NC joining systems from SI Instrumrnts exploit piezoelectric force monitoring

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article image The Kistler Staiger Mohilo NC joining module from SI Instruments

The Kistler Staiger Mohilo NC joining module, available through SI Instruments , is ideal for force-displacement monitored assembly press-fit and joining processes in compact configurations. Electromechanical NC joining systems are taking over from the familiar hydraulic presses and conventional joining modules. In addition to environmental, energy, space, installation and maintenance benefits, it is primarily manufacturing criteria that sway the system designer towards an electromechanical system.

Features of the Kistler Staiger Mohilo NC joining module include:

  • The joining module consists of a robust case with integral piezoelectric force sensor for measuring both compression and tension
  • Its motor has an absolute encoder for exact positioning
  • The compression or tensile forces acting on the sensor's piezoelectric measuring element generate a proportional electric charge converted by the integral charge amplifier into an analogue voltage signal
  • The drive motor on the joining module is an electronically commutated AC servo type handled by a matching controller to ensure constant rotational and hence translational speed
  • Standard functions of the joining module such as block pressing, position pressing and force feedback controlled pressing as well as intermediate positioning are supported
  • The Kistler Staiger Mohilo NC joining module consists of the NC joining module, the evaluation system , and the servo controller IndraDrive
  • A Profibus interface and an Ethernet port for outputting quality assurance data (I-P.M. or Q-DA format also possible) are standard on the joining module
  • The positional and joining parameters can be edited directly using the system menus
The Kistler Staiger Mohilo NC joining module is ideal for use in automated production systems. Its special design allows close workstation spacing. Throughput is sped up by eliminating the usual need for timing. The module can be flanged onto the frame of the machine either vertically or horizontally. Mounting holes are fitted in the ram for connecting holding tools.

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