公开(公告)号：US3760678A

公开(公告)日：1973-09-25

申请号：US3760678D

申请日：1972-06-15

申请人： STOLZER ANNA

发明人： STOLZER PAUL

IPC分类号： B23D49/02 ,  B23D51/20

CPC分类号： B23D49/02 ,  Y10T83/7015 ,  Y10T83/8858 ,  Y10T83/8876

摘要： A hydraulic system in a bow saw machine, operating in conjunction with a carriage carrying the bow for the saw blade, and providing for the application of the saw blade to a workpiece in the machine, the application of sawing pressure during a cutting stroke, and the retraction of the blade from the workpiece during a return stroke. A crank drive and guide structure disposed between the carriage and the bow provide for reciprocal, rectilinear guided movement of the blade with respect to the workpiece clamped on a pedestal of the machine. The hydraulic system has a cylinder-piston assembly wite the cylinder connected to the carriage and with the piston connected, through a piston rod, to the pedestal. A pump and a charging piston in the system are in hydraulic communication with a first chamber in the cylinder of one side of the piston and are operated by actuating elements associated with the crank drive. Hydraulic fluid under pressure, as supplied by the charging piston and pump, acts to apply and retract the saw blade with respect to the workpiece. In addition, a fluid under pressure, supplied from a reservoir, constantly acting within a second chamber on the other side of the piston provides an arrangement to compensate for the weight of the carriage and the components carried on it.

摘要翻译： 一种弓形锯机中的液压系统，与承载锯片的托架的托架一起工作，并且将锯片施加到机器中的工件上，在切割冲程期间施加锯切压力，以及 在返回冲程期间刀片从工件退回。 设置在托架和弓之间的曲柄驱动和引导结构提供了刀片相对于夹在机器的基座上的工件的往复直线引导的运动。 液压系统具有气缸 - 活塞组件，使气缸连接到滑架，并且活塞通过活塞杆连接到基座。 系统中的泵和充气活塞与活塞一侧的气缸中的第一腔室液压连通，并通过与曲柄驱动器相关联的致动元件来操作。 由加压活塞和泵提供的压力下的液压流体用于相对于工件施加和缩回锯片。 此外，从储存器供应的在压力另一侧持续作用的第二室内的压力下的流体提供了一种用于补偿托架及其上承载的构件的重量的装置。