The torque wrench calibrator is a precision instrument used to calibrate and verify the torque accuracy of various types of torque wrenches. It measures the output torque generated by the torque wrench during use by applying a known torque value, and compares it with the standard value to detect the accuracy of the torque wrench. Calibration instruments generally provide high-precision measurements, ensuring the reliability and accuracy of torque wrenches in practical applications.
Torque wrench testerThe specific workflow is as follows:
1. Torque loading: The verification instrument gradually applies different torques by adjusting the output value of the standard torque source.
2. Measurement output: The torque wrench is installed on the calibration instrument, and the testing instrument measures the actual torque value applied on the wrench.
3. Comparison standard: Compare the test results with the standard values to determine the accuracy of the torque wrench. If the deviation between the actual value and the standard value exceeds the allowable range, the torque wrench needs to be calibrated.
4. Multiple verifications: In order to improve measurement accuracy, it is usually necessary to perform multiple verifications to ensure that the deviation of each angle is within the standard range.
Structural composition:
1. Standard torque source: used to apply known standard torque and is the core part of the calibration instrument. It usually includes components such as electric motors, reducers, pressure sensors, etc., which can accurately control the output of torque.
2. Torque sensor: The torque sensor is used to sense the torque applied by the torque wrench and convert it into an electrical signal output. Common types of sensors include strain gauge, piezoelectric, and capacitive sensors.
3. Data acquisition system: used to collect electrical signals output by sensors and convert them into digital data. Data acquisition systems generally include high-precision analog-to-digital converters (ADCs) and signal processing units.
4. Display and control system: The display system is used to display measurement results in real time, usually on a liquid crystal display screen. The control system is used to set calibration parameters, adjust measurement ranges, and store data.
5. Mechanical structure: The mechanical structure of the calibration instrument usually includes a support frame, an adjusting device, and a rotating platform, which are used to fix the torque wrench and ensure that it is not disturbed by external forces during the measurement process.
Instructions for using the torque wrench tester:
1. Preparation work: Firstly, check whether the various functions of the calibration instrument are normal, ensuring the accuracy of the sensors, display system, and torque source. Preheat the calibration instrument to ensure stability during the measurement process.
2. Install torque wrench: firmly install the torque wrench that needs to be calibrated on the calibration instrument. Choose the appropriate installation method based on the type and structure of the wrench to avoid affecting the measurement results.
3. Set standard values: Based on the specifications and usage requirements of the torque wrench, set the calibration standard values and measurement range. The standard value is usually set based on relevant industry standards or national standards.
4. Calibration: Start the calibration instrument, gradually apply different torques and measure. After each measurement, record the output value of the torque wrench and compare it with the standard value.
5. Calibration and adjustment: If the measurement result deviates from the standard value, the torque wrench needs to be calibrated. Adjust the internal division of the wrench based on actual measurement data until its output value meets the standard requirements.
6. Save data: After completing all tests, save the measurement data to the storage system of the calibration instrument and generate a report if necessary for future reference.