Understanding the functional characteristics of each component of the screw insertion torque testing machine is key to ensuring test results

　　The screw insertion torque testing machine is a specialized device used to measure mechanical parameters such as torque, axial force, and rotation angle required during the insertion process of screws. It is widely applied in the field of fastener performance evaluation and quality control. By simulating the actual assembly process, this device provides repeatable and quantifiable test data. Understanding the functional characteristics of each component of the screw insertion torque testing machine is helpful for accurate operation and maintenance of the equipment, as well as ensuring the reliability of test results.

1. Loading mechanism: Typically driven by servo motors or stepper motors, it outputs controllable speed and torque through a precision reduction system; it has fast response speed and high control accuracy, enabling stable application of the screwing action and real-time feedback of dynamic parameters.

2. Force sensor: installed at the connection between the spindle and the fixture, used to measure axial pressure or thrust; featuring a high-sensitivity strain gauge structure, with good linearity and resistance to eccentric loading, ensuring accurate axial force data.

3. Torque sensor: Integrated into the transmission path, it directly detects the torque values generated during rotation. It features low hysteresis and high repeatability, and some models support bidirectional torque measurement to accommodate different rotational directions.

4. Angular encoder: installed coaxially with the spindle, used to record the number of rotations or angular changes; with a resolution up to 0.1° or even higher, it can be used in conjunction with software to plot torque-angle curves and analyze thread engagement characteristics.

5. Fixture system: It includes a screw clamping end and a substrate fixing end, typically featuring a quick-change structure design; the fixture material is high in hardness and good in wear resistance, and can be replaced with suitable sleeves or pressure plates according to different screw specifications.

6. Control system: Consisting of an industrial computer or embedded platform, it runs dedicated testing software; it can set test modes (such as constant speed rotation and segmented loading), collect multi-channel data, and generate reports.

7. Protective cover and safety devices: A transparent protective cover is installed around the equipment to prevent the exposure of high-speed rotating parts. Additionally, emergency stop buttons, overload protection, and limit switches are equipped to enhance operational safety.

8. Base and frame: The overall structure is made of cast iron or welded steel, featuring strong rigidity and minimal vibration. It effectively isolates external interference, ensuring the stability of the entire machine during testing and improving data repeatability.