滚焊机下机臂轴容易损坏。主要是由于铜合金较软,在经常装卸和调整滚盘之后,轴端的螺纹易于损坏。此外当上滚盘加压时,轴向间隙出现不均匀状态,有时会产生电孤,烧伤轴的表面,引起焊接回路电阻增大,影响使用。为了节约材料和解决生产急需,我们采用了 Rolling machine under the arm shaft easy to damage. Mainly due to the softer copper alloy, after frequent loading and adjustment of the roller, the shaft end of the thread is easy to damage. In addition, when the upper roller pressure, the axial gap appears uneven state, and sometimes will have a solitary, burn the shaft surface, causing the welding circuit resistance increases, affecting the use. In order to save material and solve the urgent need of production, we adopted