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The handling system (manipulator) used in the system and the rapidly rotating driver spindles yield a versatile threaded fastener drive system that can be used to simulate actual production conditions.
The manipulator compensates for the inherent weight of the driver being used, so it can easily be placed in any desired position within the large operating envelope. A pivoting head is fitted between the manipulator and the driver to allow the driver axis to be set to any desired orientation using two pivot planes. Besides driving fasteners vertically downward, this allows fasteners to be driven in all oblique directions, as well as horizontally and vertically upward.
Spindles with the following combinations of torque and rpm are used:
- Maximum torque 100 Nm, with a maximum rotational speed of 575 rpm.
- Maximum torque 20 Nm, with a maximum rotational speed of 2200 rpm.
This makes it possible to simulate demanding assembly requirements that use high rotational speeds to achieve short drive cycles.
The driver spindles allow various types of transducers to be used in specific applications. A quick-attachment system (click-fit transducer) allows a 1 Nm transducer, 5 Nm transducer, or 100 Nm transducer to be selected according to the requirements of the application. This allows the measurement uncertainty to always be kept to a minimum. Transducers are available in 1/2/5 steps (1 Nm, 2 Nm, 5 Nm, 10 Nm, 20 Nm, 50 Nm, and 100 Nm for the range up to 100 Nm).
Transducers can be exchanged quickly with a minimum of operator manipulation and without using any tools.
The drive unit can also be easily decoupled using a click connector.
The drive adapter is fitted below the transducer using a quick-change coupling. A square drive fitting (e.g. 1/4", 3/8", or 1/2") can be attached here for drive sockets, or a hexagonal socket can be attached to hold bit inserts. Rigid or spring-loaded square drive fittings can be used.
Automatic transducer identification using the AUTOCODE system eliminates unintentionally using the incorrect transducer for a specified application. If an incorrect transducer is connected, the measurement system alerts the user and refuses to allow any measurements to be made.
The Model 2777 Schatz(r) Analysis system can handle practically any threaded-fastener measurement task, including:
- torque/angle measurements for simple or complex threaded fastener joints
- analyzing the pretension/torque relationships of threaded fasteners (using an additional transducer)
- investigating the behavior of drilling screws by using drilling-time data acquisition
- testing ball-detent and friction-clutch torque limiters
For more information, please contact our SCHATZ®-ANALYSE product managers.
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