在机械加工中，经常会遇到车削偏心拍的问题，生产实际中人们创造了多种有效的方法：在三爪卡盘上安装垫块（片）;采用专用夹具等。前者虽然制造简单、成本低，但装卸工件比较麻烦，且通用性差。后者虽装卸工件容易，但设计制造成本较高，也不具备通用性质。笔者介绍一种简单方 In machining, we often encounter the problem of turning eccentric beat, the actual production of people have created a variety of effective methods: In the three-jaw chuck pad (sheet); the use of special fixtures and so on. Although the former is simple to manufacture and low in cost, the loading and unloading of workpieces is troublesome and the versatility is poor. Although the latter is easy to handle the workpiece, but the design and manufacture of high cost, do not have universal properties. I introduce a simple way