Ultrasonic Load Measurement

TCH-1000C ——Bolt Simulation Assembly Analysis System

The equipment is used for thread fastening joint verification, anti-loosening monitoring, optimization of torque attenuation, corner method tightening process development and real-time axial force test. Furthermore, it is necessary to be provided with the ability to test clamp force in real-time.

The various fastening parameters such as torque, angle of rotation, axial force, friction coefficient, torque coefficient, the calculation of bolt elongation during the tightening process is tested.

The objective when simulating the actual assembly process on the aggregate for assembly experiment is to test the install performance of threaded fastener, threaded joint, and the development of assembly process as well as analyze the quality problems in bolt assembly.

Component part：                

Flexible Manipulator：

Execution System

-Torque：1000 NM

-Moving Radius：750 mm - 2500 mm

-Vertical Displacement：Max.1300 mm

-Screwed Axis

   Bolt Pre-tightening Ultrasonic Testing System

 The bolt fastening axial, pre-tightening force, axial stress can directly be measured in real time through    

ultrasonic. The value of time difference which between the intelligent bolt system launch and receive ultrasonic pulse signal being calculated is called acoustic time difference.

The bolt axial force ultrasonic tester is widely applied in assembly testing domains such as automobile, aviation, aerospace, railway, wind power and nuclear energy. It has become a necessary testing instrument for bolt fastening system test and bolt assembly technology, providing strong guarantee for the R&D and design of bolt products as well as real-time testing and monitoring for the change of axial force.

Scope of Application

       ?Calibration of the assembly process;

       ?Field measurement of clamp force in important position;

       ?Real-time monitoring of several bolt clamp forces;

       ?In batch assembly, 100% of bolt tightening monitoring;

- Test range: M6—∞

- Measuring length: ≥3D, ≤1500mm

-Working temperature:-10°~60°

- Frequency range of transducer: 1-10MHz

- Type of transducer: magnetic/non-magnetic

- Stress range: 0-1100MPa

-Measurement unit: time-ns, elongation-mm/mm, load-KIP/KN, stress-KS/MPa, strain-%

 -Length display resolution：0.0001mm

Application of graphic

Requirements for testing bolt:

Both ends of the bolt must have reflective surface, at least the flat parallel plane is required.

There is no problem with the processing of bolt head

The end of the bolt must be polished for a flat and smooth surface.