在各种工业产品的生产中,广泛地使用着各种机床,而机床则是靠电力驱动的。由于电力控制的方便和准确,可以保证机床的高效率和产品的高质量,同时也改善了劳动条件。在应用电动机将电能转变为机械能以及对机宋各种运动控制的过程中,必须通过由各种电器构成的机床电路来实现对电动机和机床运动的控制,如电动机的起动、正反转、制动,机床的变速以及各种保护措施。在这个讲座中,我们将向读者通俗地讲解简单的机床电路,以使机械工人了解这方面的基本知识。 In a variety of industrial products, widely used in a variety of machine tools, while the machine is powered by electricity. Due to the convenience and accuracy of the power control, the high efficiency of the machine tool and the high quality of the product can be guaranteed, and the working conditions are also improved. In the application of electric motors to convert electrical energy into mechanical energy and various motion control of machine Song, the control of motor and machine tool movement must be realized through the machine tool circuit composed of various electrical appliances, such as starting, reversing and reversing of motor Dynamic, variable speed machine and a variety of protective measures. In this lecture, we will give the reader a general introduction to the simple circuit of the machine so that the mechanic knows the basics in this area.