How to measure the accuracy level of harmonic reducer?

Harmonic reducer is a precision component, which acts on industrial robots, service robots, automation equipment and other intelligent fields. Its accuracy is a very important performance index, which directly determines the accuracy and life of the equipment using it. How should the accuracy level of the harmonic reducer be measured?

　　 The accuracy grade of the harmonic reducer is measured according to its transmission error and idle stroke.
1. Idle stroke refers to the hysteresis of the output shaft in the angle of rotation when the input shaft changes from the forward direction to the reverse rotation in the working state. Idle distance less than or equal to 1 arc is divided into 1 level, which is represented by the number 1, and the idle distance is greater than 1 arc minute and less than or equal to 3 arcs, which is divided into 2 levels, and the number 2 is represented; , Represented by the number 3.
2. Transmission error: Transmission error less than or equal to 30 arc seconds belongs to high-precision reducer, which is represented by capital letter A, and belongs to A grade; transmission error greater than 30 arc second and less than or equal to 1 arc minute belongs to precision reducer, with capital letter B Indicates that it belongs to Class B; the transmission error is greater than 1 arc minute and less than or equal to 3 arc minutes, which belongs to ordinary-grade reducer, which is indicated by capital letter C and belongs to Class C.
The price of the harmonic reducer of different accuracy grades is also different, so when you buy, you can’t just look at the price instead of knowing some important performance parameters. You can only understand the parameters in detail to better choose the suitable ones. Harmonic reducer.