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并联杆系机床又称六条腿机床或虚拟轴机床,是1994年才出现的新概念机床。由于其构件只承受拉、压力,不承受引起变形较大的弯矩和扭矩而具有较高的刚度;运动构件的质量小,因而易于实现高速和高加速度,加上结构简单、制造容易而引起广泛的重视。在EMO’97(第12届欧洲国际机床展览会)上,曾有过空前规模的展出(我们曾为此写了详细的报导和评述,参见WMEM1998年第一期)。在这届EMO’99上,展出规模大为减少,但具有以下五个较为突出的特点:
Parallel rod system, also known as six-legged machine or virtual axis machine tool, is the new concept of machine tool appeared in 1994. Because of its components only under tension, pressure, do not bear the deformation caused by a large bending moment and torque and higher stiffness; movement of small pieces of quality, which is easy to achieve high speed and high acceleration, coupled with simple structure, easy to create caused Wide attention. At EMO’97 (12th International Machine Tool Fair Europe), there was an unprecedented scale of exhibition (we wrote a detailed report and review for this purpose, see WMEM 1998, first issue). On this session of EMO’99, the scale of exhibition has been greatly reduced, but with the following five prominent features: