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The ratchet wrench torque fatigue testing machine is specifically utilized for torque performance evaluation and torque fatigue life testing of ratchet wrenches. The ratchet wrench test specimen is secured between adjustable fixtures, and with the appropriate tooling, the machine can adapt to various test specimens for torsional mechanical property testing. The test bench employs computer-controlled operation, facilitating data acquisition of parameters such as torque, peak torque, angle, and test curves. The display presents the torque-time, torque-torsion angle, and torque-rotation angle test curves for the ratchet wrench under test. The system supports functions including test data storage, data retrieval, and printing of test reports.
| Feature | Description |
|---|---|
| Torque Testing | Measures torque performance including maximum torque, yield torque, and torque-angle characteristics |
| Torque Life Testing | Conducts cyclic loading tests to evaluate the fatigue life and durability of ratchet wrenches |
| Adjustable Fixtures | The distance between fixtures can be adjusted to accommodate ratchet wrenches of different sizes and lengths |
| Versatile Tooling | Equipped with appropriate fixtures to adapt to various test specimens |
| Computer Control | Fully automated operation with real-time data acquisition and display |
| Test Curves | Displays torque-time, torque-torsion angle, and torque-rotation angle curves |
| Data Management | Supports data storage, retrieval, and report printing |
Test Parameters
| Parameter | Description |
|---|---|
| Torque | Real-time torque value during the test |
| Peak Torque | The maximum torque value achieved during the test |
| Angle | Rotation angle during the test |
| Torque Life | Number of cycles or duration until failure or performance degradation |
| Standard No. | Standard Name |
|---|---|
| QB/T 4619-2013 | Ratchet wrenches—Applicable to ratchet wrenches for tightening bolts, nuts, or other fasteners |
| ISO 6789-2:2017 | Assembly tools for screws and nuts — Hand torque tools — Part 2: Requirements for calibration and determination of measurement uncertainty |
| GB/T 15729 | Torque wrenches—General technical requirements |
| ASME B107.100 | Hand Torque Tools |
Application
| Application | Description |
|---|---|
| Ratchet Wrench Manufacturers | Production line quality control, outgoing inspection |
| Tool Distributors | Incoming inspection, quality sampling |
| Automotive/Mechanical Assembly | Tool performance verification and fatigue life testing |
| Testing Institutions | Product supervision and random inspection |
| Research & Development | New product development and performance validation |
