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1. 发明授权

US3919906A Electrohydraulically controlled cut off saw 失效
标题翻译：电液控制切断锯
公开(公告)号：US3919906A
公开(公告)日：1975-11-18
申请号：US46377174
申请日：1974-04-24
申请人： CHASE BRASS & COPPER CO
发明人： LAW ANTHONY G
IPC分类号： B23D45/20 , B23D25/04 , B23D25/16 , B23D45/22
CPC分类号： B23D45/20 , Y10T83/4679 , Y10T83/4682 , Y10T83/476 , Y10T83/54
摘要： An electrohydraulically controlled cut off saw for accurate cutting of continuously moving stock traveling at a high rate of speed. The cut off saw includes a carriage movable in a forward direction the same as the direction of travel of the stock and in a reverse direction opposite to the direction of travel of the stock. Acceleration, deceleration, and movement of the carriage in both the forward and reverse directions is controlled in response to sensed movement of the stock by the control system. A multiple pressure hydraulic source supplies hydraulic fluid to a cylinder for moving the carriage in such a manner that the pressure of the fluid to the cylinder is lower during acceleration and deceleration than during normal movement of the carriage. A unique selectively latchable follower pivoted to the carriage, cooperates with a cam to traverse the saw carriage to cut the stock during forward movement of the carriage. The latch is disabled during reverse movement of the carriage so there is no cutting movement of the carriage when the carriage returns to its start or home position. The stock is clamped during cutting by a clamp on the carriage. A manual control provides for manually controlling movement of the carriage to a set-up position while maintaining the electrohydraulic system in synchronism.
摘要翻译：一种电液控切割锯，用于精确切割以高速度行驶的连续移动的坯料。切断锯包括可沿着向前方向移动的托架，该托架可以与坯料的行进方向相同，并且沿与坯料的行进方向相反的方向移动。响应于由控制系统检测到的原料的移动，控制滑架在正向和反向方向上的加速，减速和运动。多压力液压源将液压流体供应到用于使滑架移动的气缸，使得在加速和减速期间流体与气缸的压力比在滑架的正常运动期间更低。一个独特的可选择的可闩锁的随动件枢转到滑架，与凸轮配合以横越锯架，以在托架的向前运动期间切割坯料。在滑架的反向运动期间，闩锁被禁用，因此当滑架返回到其起始位置或起始位置时，滑架没有切割运动。在切割期间通过托架上的夹具夹紧原料。手动控制提供手动控制滑架到安装位置的运动，同时保持电动液压系统同步。

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