Automatic width switching mechanism

The utility model provides an automatic width switching mechanism which comprises a motor mounting plate, guide plates are symmetrically arranged on the two sides of the upper portion of the motor mounting plate, an L-shaped support is arranged on the outer side of the bottom of each guide plate, a stabilizing frame is installed at the bottom of each L-shaped support, a hydraulic box is arranged on the inner side of the bottom of each L-shaped support, and a telescopic clamping plate is arranged in each hydraulic box. According to the mechanism, the left-hand thread lead screw and the right-hand thread lead screw are connected through the coupler so as to adjust the width between the guide plates, the clamping center does not need to be changed, the lead screws are driven through the servo motor so as to achieve automatic switching, meanwhile, the damper/spring arranged in the stabilizing frame at the bottom of the clamping plate buffers and clamps a blue cell, and the cell is prevented from being damaged by