| 摘要 |
<p>The invention relates to a numerical control right-angle plate shearing machine. The numerical control right-angle plate shearing machine comprises a machine body (1) and an upper knife carrier (2). At least four driving mechanisms used for driving the upper knife carrier (2) to make vertical motion are arranged above the upper knife carrier (2), and the resultant moment of longitudinal component force applied to the upper knife carrier (2) by all the driving mechanisms is zero. According to the numerical control right-angle plate shearing machine, two servo motors are used for controlling four force bearing points to operate precisely and synchronously, the lateral force generated in the shearing process is not completely borne by a ball linear guide rail on the side face of the upper knife carrier any more, meanwhile, three driving points are further placed over shearing loads, most of the shearing loads can be borne, the tilting moment generated at the center of the upper knife carrier by the shearing loads is basically offset, the influence of stress deformation of the ball linear guide rail due to working loads in operating of the upper knife carrier is greatly reduced, operation is more steady, and shearing precision is also improved; meanwhile, due to the fact that all transmission structures are in a rolling friction mode, energy loss is lower.</p> |
