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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Laser-Cutting Pneumatics
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Laser-Cutting Pneumatics

机译：激光切割气动

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摘要

Pneumatic devices require tight tolerances to keep them leak-free. Specialized companies offer various off-the-shelf devices, while these work well for many applications, there are also situations where custom design and production of pneumatic parts are desired. Cost efficiency, design flexibility, rapid prototyping, and MRI compatibility requirements are reasons why we investigated a method to design and produce different pneumatic devices using a laser cutter from acrylic, acetal, and rubber-like materials. The properties of the developed valves, pneumatic cylinders, and stepper motors were investigated. At 4-bar working pressure, the 4/3-way valves are capable of 5-Hz switching frequency and provide at most 22-L/min airflow. The pneumatic cylinder delivers 48 N of force, the acrylic stepper motor 30 N. The maximum switching frequency over 6-m long transmission lines is 4.5 Hz, using 2-mm tubing. A MRI-compatible robotic biopsy system driven by the pneumatic stepper motors is also demonstrated. We have shown that it is possible to construct pneumatic devices using laser-cutting techniques. This way, plastic MRI-compatible cylinders, stepper motors, and valves can be developed. Provided that a laser-cutting machine is available, the described pneumatic devices can be fabricated within hours at relatively low cost, making it suitable for rapid prototyping applications.
机译：气动设备需要严格的公差以保持其无泄漏。专业公司提供各种现成的设备，尽管这些设备可以很好地用于许多应用，但在某些情况下，也需要定制设计和生产气动零件。成本效率，设计灵活性，快速原型制作和MRI兼容性要求是我们研究使用丙烯酸，乙缩醛和类橡胶材料的激光切割机设计和生产不同气动设备的方法的原因。研究了开发的阀门，气缸和步进马达的性能。在4 bar工作压力下，4/3通阀的开关频率为5 Hz，并且最多可提供22 L / min的气流。气缸提供48 N的力，丙烯酸步进电机提供30 N的力。使用2 mm的管，在6米长的传输线上的最大开关频率为4.5 Hz。还演示了由气动步进电机驱动的MRI兼容机器人活检系统。我们已经表明可以使用激光切割技术来构造气动装置。这样，可以开发出与MRI兼容的塑料气缸，步进电机和阀门。只要有激光切割机，就可以在数小时内以相对较低的成本制造所述的气动装置，使其适合于快速成型应用。

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