Research Of Flatness And Linearity Testing System

Flatness and linearity shape position tolerance -- in industrial production campaign in have been applied extensively, and possess important position always. But according to flatness and linearity error define determine based on minimum condition the measure tool of principle, now have not reached the linearity error that beged for practical level or the value of flatness error can not directly get from measure tool. Make flatness and linearity error value determine to divide into measure and assessment two courses. Therefore to get flatness and linearity error value, must carry out complex, fussy data detection and the assessment course of handling , and have not Shen, will cause mass data lose , have not only increased labour strength, and working efficiency more lows. Now, have only individual unit development to happen: Based on data collection board card or RS-232-C port, carry out the development of the detection project and detection method unitary flatness testing system of interface signal handling. And return in the sphere of nation-wide the detection precision that stops in the artificial detection stage of by hand and makes flatness and linearity to be hard raising.This paper defines according to its detection characteristic and problem that flatness and linearity detection have according to flatness and linearity error , is measurement unit and design data collection ware from production reality, with digital type electronic level, and with the combination of personal computer, have established flatness and linearity testing system. Through the export voltage signal of detection digital type electronic level, regard it as control goal , gather ware according to the data based on the technology of newest USB interface that designed and utilize Chinese edition VB6 . the software technical data handling for flatness of 0 program languages the window body function that carries out coding design partially measure count according to collection and calculation, can reach convenient, low cost, easy development and high reliability, have realized in the purpose that satisfies detection precision and raise detection working efficiency under prerequisiteIn flatness and linearity detection course have been measured actual line or actual surface and have decided measure section several and its flatness original data select principle, and by assessment method and the detection of flatness and linearity error definition, this paper has carried out precision analysis and design for it. And ask according to detection, have designed based on VB6. data sheet and the database of the Accesss database type under 0 Chinese editions, have raised detection precision efficiently and more have to standardize.This system applies to linearity detection and the flatness of various visible position tolerance requirements. This system is to study tolerance again and again with VB language design utilize the once of flatness and linearity testing system try , it is flatness with the once of linearity detection field explore recently.