Automation Transformation of BB-3T Standard Brinell Hardness Tester
In order to solve the problem of low automation level and working efficiency of BB-3T standard Brinell hardness tester,this paper adopts manipulator to grasp and move hardness block,and realizes automatic control of variable load handle by stepper motor to drive connecting rod mechanism.Use servo motor and worm gear screw lift-ing mechanism to control load loading speed and holding time;The PLC control program and industrial touch screen human-computer interface were designed by Step7 and DOPSoft,and the automatic transformation of BB-3T standard Brinell hardness tester was realized.The experiment shows that the design can control the stable system op-eration,and the measurement results are good repeatability,simple operation,can realize the automation of the measurement and calibration process,and improve the work efficiency.
standard brinell hardness testerautomation transformationmetrological calibrationwork efficiency