3 608 870 A47 Tightening Technology | Bosch Rexroth AG13/
Nexo cordless Wi-Fi nutrunnero | 3 608 870 A47/2017-05
1.4.3 Terms
DMS Strain gauges. Measuring device that changes its electrical resistance in case of deformations even
if these are minor and is thus used as a strain gauge sensor.
Torque filter factor Additional parameter for determining the gradient.
NX-SD Micro SD card On delivery, the NX-SD Micro SD card inserted in the Nexo cordless Wi-Fi nutrunner contains docu-
mentations and license information.
Ring memory Limited storage is available in the ring memory. The oldest data will be overwritten with the latest data
if more storage space is required.
Tightening process The tightening process describes the entire tightening procedure including the various individually pa-
rameterized tightening program steps (such as "finding", "driving in" "tightening", etc.) until the target
function is reached (torque, angle, etc.).
Tightening application Within a tightening application (also called application), 1 to a maximum of 40 tightening channels are
coordinated.
Tightening channel Where the Nexo cordless Wi-Fi nutrunner is concerned, this refers to the nutrunner itself.
A tightening channel in the Tightening System 350 comprises the necessary components for tighten-
ing. This includes the complete tightening spindle, controller, servo amplifier, and connecting cable.
Tightening program The tightening program coordinates the tightening process/sequence. It is divided into various tight-
ening steps, where tightening parameters are set.
Tightening position The tightening position is the defined location where tightening is performed using a tightening chan-
nel and a tightening program.
Tightening system A tightening system is a complete system with all tightening channels that are needed to carry out the
defined tightening case.
Tightening cell The Nexo cordless Wi-Fi nutrunner is a separate tightening cell which features a data interface for
communication with an operating program or a partner controller.
Torque threshold The torque threshold is a parameter to help measure the angle of turn for a target or monitoring func-
tion. The monitoring function of the angle is started as soon as the measured torque for the bolt reach-
es the value for the torque threshold for the first time. Afterwards, the torque threshold has no more
influence on the tightening process, except for angle correction.
Chord angle The chord angle is an additional parameter for determining the gradient.
Controller Where the Nexo cordless Wi-Fi nutrunner is concerned, the controller is the tightening controller in-
tegrated in the nutrunner.
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