The main function of a dynamic balancing machine is to measure the magnitude and position of the imbalance of a rotating object (rotor); The main performance of a dynamic balancing machine is to use two comprehensive indicators: the minimum achievable residual imbalance amount and the reduction rate of the dynamic balancing machine. The former is the minimum residual imbalance amount that the balancing function can achieve for the rotor, and it is an indicator to measure the highest balancing capacity of the balancing machine; The latter is the ratio of the reduced imbalance after one correction to the initial imbalance.
Method for verifying the measurement accuracy and accuracy of dynamic balancing machines:
1. First calibrate the balancing machine, and the calibration steps are shown in the manual. Assuming that the outer circle of the rotor is used as the calibration face of the workpiece (for the convenience of verifying the accuracy of the balancing machine).
2. After the calibration is completed, use the balance machine software to measure the imbalance of the workpiece. For example, there is a 20g imbalance on the left calibration face at an angle of 100 degrees that needs to be removed from the weight, and a 30g imbalance on the right calibration face at an angle of 150 degrees that needs to be removed from the weight. At this time, find two 10g weights as the test weight blocks for verification, and add two 10g weights to each 100 degrees on the left side and 150 degrees on the right side. At this time, measure the imbalance again, If the imbalance on the left side increases by about 90% of the weight of 10g, and the imbalance on the right side increases by about 90% of the weight of 10g, it indicates that the accuracy of the balancing machine meets the accuracy requirements and the balancing machine is not a problem. On the contrary, if there is a fault with the balancing machine equipment, the above 5 fault factors need to be repaired.
Factors that affect the measurement accuracy and accuracy of dynamic balancing machines:
1. Software measurement factors: damaged data acquisition card or other electronic components.
2. Need to balance the factors of the workpiece itself: the processed workpiece does not meet the production process requirements, and the surface of the balance machine swing support position is not qualified
3. Human factors: Improper operation of the balancing machine by the operator, deviation in calibration values or angles, and deviation between the calibration position and calibration position.
4. The mechanical part of the balancing machine affects the balancing accuracy, such as the jumping of the rollers, uneven surface of the rollers, unstable overall connection of the swing frame, and unstable bed. If there is a process fixture, it is necessary to consider the impact of the tolerance between the fixture and the workpiece (≤ 0.03mm).
5. Sensor and sensor wire factors: piezoelectric sensors are damaged or assembled too tightly or loosely, speed sensors are damaged or the measured speed does not match the actual speed (in addition to manual markings, there are also photosensitive points that affect speed measurement in the coil type balancing machine), sensor wires are open or short circuited
Method for verifying the measurement accuracy and accuracy of dynamic balancing machines:
1. First calibrate the balancing machine, and the calibration steps are shown in the manual. Assuming that the outer circle of the rotor is used as the calibration face of the workpiece (for the convenience of verifying the accuracy of the balancing machine).
2. After the calibration is completed, use the balance machine software to measure the imbalance of the workpiece. For example, there is a 20g imbalance on the left calibration face at an angle of 100 degrees that needs to be removed from the weight, and a 30g imbalance on the right calibration face at an angle of 150 degrees that needs to be removed from the weight. At this time, find two 10g weights as the test weight blocks for verification, and add two 10g weights to each 100 degrees on the left side and 150 degrees on the right side. At this time, measure the imbalance again, If the imbalance on the left side increases by about 90% of the weight of 10g, and the imbalance on the right side increases by about 90% of the weight of 10g, it indicates that the accuracy of the balancing machine meets the accuracy requirements and the balancing machine is not a problem. On the contrary, if there is a fault with the balancing machine equipment, the above 5 fault factors need to be repaired.
Factors that affect the measurement accuracy and accuracy of dynamic balancing machines:
1. Software measurement factors: damaged data acquisition card or other electronic components.
2. Need to balance the factors of the workpiece itself: the processed workpiece does not meet the production process requirements, and the surface of the balance machine swing support position is not qualified
3. Human factors: Improper operation of the balancing machine by the operator, deviation in calibration values or angles, and deviation between the calibration position and calibration position.
4. The mechanical part of the balancing machine affects the balancing accuracy, such as the jumping of the rollers, uneven surface of the rollers, unstable overall connection of the swing frame, and unstable bed. If there is a process fixture, it is necessary to consider the impact of the tolerance between the fixture and the workpiece (≤ 0.03mm).
5. Sensor and sensor wire factors: piezoelectric sensors are damaged or assembled too tightly or loosely, speed sensors are damaged or the measured speed does not match the actual speed (in addition to manual markings, there are also photosensitive points that affect speed measurement in the coil type balancing machine), sensor wires are open or short circuited
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