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针对高速高精直线电机应用于机床上时滚动直线导轨副缺乏制动功能的问题,将气动制动技术运用于直线导轨副的制动系统中,设计了一种新型气动式钳制器。首先,介绍了滚动直线导轨精密滚动功能部件钳制器的结构原理与工作特点;然后,对关键增力部件进行了分析研究,通过对滚柱的受力分析计算,分别建立了无摩擦阻力矩和有摩擦阻力矩的滚动模型,得出了在不同参数条件下滚柱在制动块和在楔形块上的运动特性;最后,采用相对运动关系,分析得到制动块的位移与楔形块位移之间的对应关系。文中的研究成果为钳制器内部精细的结构设计及为钳制器响应时间的确定提供了理论依据。
In view of the lack of braking function of the rolling linear guide when the high-speed and high-precision linear motor is applied to the machine tool, the pneumatic braking technology is applied to the braking system of the linear guide pair, and a new pneumatic clamp is designed. First of all, the structural principle and working characteristics of the precision rolling-function gripper of the rolling linear guide rail are introduced. Then, the key power-enhancing parts are analyzed and studied. The frictional resistance moment and The rolling model with frictional resistance moment is obtained, and the movement characteristics of the roller on the brake block and the wedge block under different parameters are obtained. Finally, the relationship between the displacement of the brake block and the displacement of the wedge block is analyzed by using the relative motion relationship The correspondence between. The research results in this paper provide a theoretical basis for the fine structure design inside the clamp and the determination of the response time of the clamp.