A Reliability Test Device for CNC Grinder Measuring Instrument System

Abstract

The invention belongs to the field of the precision manufacturing technology and industrial automatic control, and relates to a reliability testing device of a numerical control grinder measuring instrument system. The reliability testing device comprises a mechanical adjusting system and an electrical control system. The mechanical adjusting system comprises an axial measuring system, a radial measuring system and a workpiece tightening system. The testing device carries out reliability testing on a measuring instrument according to workpieces of a numerical control grinder under different rotating speeds, a frequency converter is controlled through a programmable logic controller, and therefore the rotating speed of a servo motor is controlled. A servo driver is controlled through the programmable logic controller, the rotating speed of the servo motor is controlled, and therefore the measuring position of the measuring instrument is controlled. The testing device simulates various different work conditions of the numerical control grinder, the measuring frequency of the measuring instrument and the rotating speed of the workpieces change according to needs, the programmable logic controller controls a touch screen to store data measured in the running process of the measuring instrument and failure data, and the reliability level of the numerical control grinder measuring instrument is calculated and evaluated through the data.

Description

technical field [0001] The invention relates to a test device for evaluating the reliability of a measuring instrument system of a numerically controlled grinder, which belongs to the fields of precision manufacturing technology and industrial automation control. Background technique [0002] CNC grinding machines are widely used in mechanical processing and manufacturing industries, using CNC programs to control servo motors to drive grinding wheels to grind shafts, planes, etc. CNC grinding machines are usually the last process of precision parts processing, so the performance and reliability of CNC grinding machines have an important impact on the precision and efficiency of parts processing. [0003] For CNC grinding machines, the main function of the measuring instrument system is to measure the processing size of the workpiece to control the accuracy of the workpiece, so the measuring instrument system is a key part to ensure the machining accuracy of the workpiece. T...

AI Technical Summary

Problems solved by technology

During the operation of the CNC grinding machine, the measuring instrument mainly has problems such as damage to the measuring claw, damage to the measuring instrument arm, damage to the sensor, damage to the limit travel switch, and failure of the hydraulic cylinder. Once these problems occur, the processed parts are likely to be waste products, seriously affecting Productivity

[0006] At present, the test of the measuring instrument system of the numerical control grinding machine is mainly the test under no-load condition, and the reliability test is rarely carried out, resulting in very little reliability basic data of the measuring instrument system of the numerical control grinding machine, and the designer cannot grasp the quantity of the numerical control grinding machine. The reliability level of the instrument system

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