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The gsh ball screw actuator is a component in the field of high-precision automation. Both during use and after long-term use, alignment and calibration are necessary. Only through calibration can errors be reduced during later use, thereby lowering the defect rate. Then how should the gsh ball screw actuator be calibrated? Below, I will give you a detailed explanation.

1. First, it is necessary to obtain more than three sets of preset translation amounts in the X and Y directions of different lines. Then, based on their corresponding relationships and preset translation amounts, determine the movement amounts of each working axis in the gsh ball screw actuator, and control each working axis to move according to the movement amounts to achieve translation.

2. Based on the changes in platform coordinates and image coordinates of the marked points before and after translation, calculate the type parameters. The specific type parameters include: the resolution R Y of the image coordinate system in the Y direction, the resolution Rx of the image coordinate system in the X direction, and the Angle ω between the image coordinate system and the platform coordinate system.

3. After recording the preset rotation Angle α, based on the corresponding relationship between each component of the gsh ball screw actuator and the rotation Angle α, determine the second movement amount of each working axis in the gsh ball screw actuator, and control each working axis to move according to the second movement amount. Achieve rotation;

4. Based on the type parameters, the second type parameters and the image coordinates (X0, y0) of the marked points of the gsh ball screw actuator before rotation, obtain the mapping relationship between the image coordinate system of the marked points and the platform coordinate system of the gsh ball screw actuator during movement. The mapping relationship is as follows: (x1, Y1) are the platform coordinates of the marked points during their movement, and (x2, y2) are the image coordinates of the marked points during their movement.

5. Rotate the translation unit to reach a certain rotation Angle β, and control the translation amount corresponding to the rotation Angle β to control the corresponding rotation and translation. The second computing unit is used to set the second platform coordinates of the marked points before rotation and translation as (xK, Yk). According to the platform coordinates of the marked points (X1,Y1), the image coordinates of the marked points before rotation and translation (XK,yK), the image coordinates of the marked points after rotation and translation, and the type parameters, Calculate the coordinates of the second platform (Xe,Ye);

6. Judgment unit, used to determine whether the difference between the second platform coordinate (XK, Yk) and the platform coordinate (X1Y1) is within the specified range. If so, determine that the second platform coordinate (XK, Yk) is the gsh ball screw actuator before rotation The platform coordinates of the marked points (Xtl,Ytl), if not.

7. Set the second platform coordinate (XK, Yk) as the platform coordinate (X1,Y1), and re-obtain the other preset rotation angles. Set the other preset rotation angles as the rotation Angle β, and return the operation performed by the translation quantity acquisition unit.

gsh ball screw actuator https://www.pi-robot.com/GSH-Series/