High precision coaxiality electronic universal testing machine

As a core performance indicator of electronic universal testing machines, coaxiality directly affects the accuracy and reliability of material mechanics testing - it measures the degree of coincidence between the center lines of the upper and lower clamping heads of the specimen clamping device and the force axis, ensuring that the specimen bears pure axial loads rather than additional eccentric stresses. Errors arise from factors such as design, processing, or assembly, which can introduce bending stress and cause distortion of test data, especially in high stiffness materials (such as metal alloys) or measuring elastic poles. Slight deviations can significantly distort the accuracy of key parameters such as yield strength and tensile strength

To improve the coaxiality of the testing machine, Hengyi adopts a rigid frame structure (such as a symmetrical layout of double columns) and a precision transmission system (such as a double reducer toothed belt transmission). Through finite element analysis optimization, the coaxiality deviation is controlled within 5%, effectively dispersing the load and extending the equipment life. At the same time, high-resolution sensors (such as the 8 million code system) are combined with fully digital closed-loop control to achieve real-time monitoring during dynamic loading processes, meeting the strict requirements for coaxiality in standards such as ASTM E1012-5 and JJG139-2014 (expressed as bending percentage).

Local features:

1. The horizontal beam should move up and down by 100mm with a runout requirement of within 0.02mm.

2. The concentricity of the fixture must not exceed 0.05mm.

3. The flatness requirement for the fixture is 0.01-0.03mm.

4. The parallelism requirement for fixtures is 0.01-0.03mm.

5. The effective stroke of the testing machine is 300mm

6. Experiment * Outer diameter of Ø 260mm

High precision coaxiality electronic universal testing machineIn the fields of aerospace, automotive parts, building materials, etc., high coaxiality equipment can significantly improve the reliability of testing data for composite materials and materials sensitive to eccentricity, and assist in research and quality control.

High precision coaxiality electronic universal testing machineTechnical Specifications:

1. Product specification: HY-5080

2. Accuracy level: Level 0.5

3. Load: 50KN

4. Effective force measurement range: 0.1/100-100

5. Test force resolution, load ± 500000 yards; There is no distinction between internal and external, and the resolution remains unchanged throughout the entire process.

6. Effective test width: 600mm

7. Effective experimental space: 800mm

8. Test speed: 0.001~500mm/min (adjustable arbitrarily)

9. Speed accuracy: within ± 0.5% of the displayed value;

10. Displacement measurement accuracy: within ± 0.5% of the displayed value;

11. Deformation measurement accuracy: within ± 0.5% of the displayed value;

12. Stress controlled rate range: 0.005%~6% FS/S

13. Stress controlled rate accuracy: When the rate is less than 0.05% FS/S, it is within ± 1% of the set value; When the rate is ≥ 0.05% FS/S, it is within ± 0.5% of the set value;

14. Strain control rate range: 0.002%~6% FS/S

15. Strain control rate accuracy: When the rate is less than 0.05% FS/S, it is within ± 2% of the set value; When the rate is ≥ 0.05% FS/S, it is within ± 0.5% of the set value;

16. Constant force/displacement/deformation measurement range: 0.5%~100% FS

17. Constant force/displacement/deformation measurement accuracy: When the set value is less than 10% FS, it is within ± 1% of the set value; When the set value is ≥ 10% FS, it is within ± 0.1% of the set value;

18. Test bench lifting device: fast/slow speed control, can be inched;

19. Test bench safety device: electronic limit protection

20. Test bench return: Manual can return to the initial position of the test at high speed, and automatic can return automatically after the test is completed;

21. Test automatic parking with fixed time, test automatic parking with fixed deformation, test automatic parking with fixed load

22. Overload protection: Automatic protection when the maximum load exceeds 10%;

23. Automatic diagnostic function, regularly checks the measurement system and drive system for overload, overvoltage, overcurrent, overload, etc., and immediately protects in case of abnormal situations

24. Power supply: 1500W

25. Host weight: 850kg

26. Power supply voltage: 220V (single-phase)

27. Host size: 1000 * 520 * 1860mm