Servo motor - The ball screw traversing mechanism is ma […]
Servo motor - The ball screw traversing mechanism is mainly composed of a servo motor, a timing belt transmission mechanism, a ball screw pair, a linear guide and a slider, an ejector rod, and a tension extension spring. The motor shaft and the ball screw are connected through a synchronous belt transmission structure, and the ball screw drives the slider mechanism to move linearly. One end of the slider is equipped with a jack and acts on the comb through a tension spring.
The operation process of the comb stroke is as follows: After the motor receives the control signal for performing the lateral movement, the motor shaft rotates the corresponding angle with the set motion curve, and the ball screw shaft of the motor shaft connected through the timing belt transmission mechanism also rotates accordingly. Through a certain proportion of angles, the ball screw drives the nut which is matched with it to convert the gyration motion into a linear motion, thereby realizing the operation of pushing the comb to perform traverse.
The most important parts of the comb traverse structure are the servo motor, the timing belt drive mechanism and the ball screw structure. The servo motor can accept the signal from any angle of the spindle to drive the bar to move laterally, which has high precision and convenient control. The function of the ball screw is to convert the rotation of the motor into linear motion; the synchronous belt drive mechanism is used to connect the motor shaft and the ball Screw, for the system has a damping and buffering effect.
This method is widely used in production assembly plants, with the advantages of easy control, relatively low cost, low noise during operation, good followability, etc. It adopts the conversion structure of the ball screw, effectively achieving a high positioning accuracy of the comb. The intermittent traversing greatly reduces the impact of the comb stroke.