一、引言线切割机加工中电极丝对于工作台的垂直度是保证加工精度的措施之一。目前,在我国线切割机床行业中常用的检查仪器品种繁杂,主要有:火花式、信号式、光学式三类。前二者属接触式,检测精度不高。下面介绍由杭州无线电专用设备一厂委托我厂设计的精度较高结构新颖的光学电极丝垂直度检查仪。(以下简称检查仪)二、结构和特点采用显微镜式结构(但又有一些区别如图1),对称式目镜,主要是为了提高成象质量和提高放大率。达到清晰分辨,精确测量的使用要求和技术性能。在分划板的设置 I. INTRODUCTION The verticality of electrode wire for wire cutting machining is one of the measures to ensure the machining accuracy. At present, in our country wire cutting machine tool industry commonly used in the variety of inspection instruments, there are: spark-style, signal type, optical three categories. The first two are contact, the detection accuracy is not high. The following describes a factory commissioned by Hangzhou, a dedicated radio equipment factory designed high accuracy of the new structure of the optical wire perpendicularity tester. (Hereinafter referred to as the test instrument) Second, the structure and characteristics Microscopic structure (but there are some differences as shown in Figure 1), symmetrical eyepiece, mainly in order to improve imaging quality and increase magnification. To clearly distinguish the precise measurement of the use requirements and technical performance. Settings in reticle