Microdrives Synchronize Horizontal Balancing Machines

小型组件意味着您的公差很小，并且垃圾室的错误室。特别是在敏感轴承的小和微分组件的情况下，设备生命周期的绝对同心性是关键因素。速度和非对称重量越高，所涉及的力就越大。随着振动，这会导致轴承的应变增加，并最终导致过早的磨损。

Micro Präzision Marx’S平衡机使用Faulhaber驱动器来允许对测试程序进行精确调整。

位于德国Erlangen的MicroPräzisionMarx GmbH提供了一台专门用于测试小型组件质量的水平平衡机。记录丝毫不平衡意味着测量压力很小，这就是为什么这些测试程序的每个元素都必须高精度可调节的原因。考虑到这一点，总部位于Erlangen的平衡专​​家为驱动器选择了Faulhaber Motors。

There are issues with the armatures of electric motors. While wire-wound dc armatures made of dynamo sheet are non-magnetic, the armatures of modern, brushless dc-drives definitely require an antimagnetic testing device. Eddy currents caused by ill-positioned metal parts also impair the testing procedure. This is where specialist expertise is called for—these small parts require the highest degree of balancing precision, down to an accuracy of one-tenth of a milligram.

平衡机的特殊形状旨在处理所有可能的测试件类型，而特殊控件则确保测试条件在产品线中的每个测试件完全相同。例如，每次以400,000 rpm运行的微型涡轮机的每个两克转子必须每次完美平衡。高度精确的振荡传感器，结合精确的评估提供准确的读数。同步，高速和非常好的可调节性是关键。

这些类型的测试需要可靠的驱动器，能够始终如一的高速且可调节特定革命配置文件。设计师提出了一个直径35毫米的无刷直流伺服电机，以满足这些要求。预紧的滚珠轴承保证了特别安静的跑步；90 W的功率可确保高度动态性能，以快速加速和制动。电动机外壳内部的高分辨率编码器和可编程的定位和速度控制完成了驱动器。

Apart from its power supply (24 Vdc), the standard features include an analog input, an error output and an RS232 interface. The start module of the balancing device controls the direction of rotation and speed of the drive through these interfaces. These functions are complemented by a motor start/stop and speed display.

The servo drive can accelerate test pieces to speeds of 40,000 to 80,000 rpm during the measuring process. Modern, brushless dc servomotors offer a whole new range of options for miniature measuring and testing devices.

Faulhaber
www.faulhaber.com

::Design World::

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Filed Under:工厂自动化,驱动器（DC）,驱动器（伺服） +放大器,运动控制•电动机控制

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