凭借以上的设计，可确保所述的交换 刀臂在垂直位移在与水平摆转时的精确度以及稳定性。

By dint of the design, the utility model can ensure the accuracy and the stability of the exchange cutter holder in vertical displacement and horizontal swinging.

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由电机通过齿轮、齿臂带动压刀梁作前后运动，达到冲孔轻松、快捷的目的；

The motor drives the back of the press blade to move forward and backward via the gears and gear arm to realize the purpose of punching easily and quickly;

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