As a key equipment for precision machining, the precision of the measuring system of the vertical axis cylindrical surface grinder directly determines the machining quality of the workpiece. Once there is an error fault in the measurement system, it can easily lead to problems such as workpiece size deviation and decreased surface accuracy, increasing production costs. Therefore, establishing a scientific detection and calibration system is of great practical significance for ensuring the machining accuracy of equipment.

The core causes of measurement system error faults can be divided into two categories: hardware failure and software drift. At the hardware level, displacement sensor wear, grating ruler contamination, and loose connecting components are common causes, which often manifest as sudden changes or repetitive deviations in measurement data; At the software level, signal interference and aging calibration parameters in the data acquisition module can lead to systematic errors, typically exhibiting continuous linear or nonlinear deviation characteristics. The two types of faults do not exist in isolation, and signal fluctuations caused by hardware wear may further exacerbate deviations in software data processing.

For the above-mentioned faults, a layered detection strategy should be adopted to achieve precise positioning. Firstly, perform basic functional testing, compare the measured values with the actual values through standard piece grinding, and preliminarily determine whether the error exceeds the allowable range. If there is a significant deviation, further hardware special testing should be carried out to check the cleanliness of the grating ruler reading head and the installation gap of the sensor, and to use a dial gauge to check the stability of the mechanical connection. At the software level, data traceability analysis is used to compare the measurement data curves of different batches of processing and identify parameter drift patterns. It is worth noting that environmental factors should be avoided during the testing process, and it should be carried out under standard operating conditions of constant temperature and shock resistance.

Calibration work should follow the principle of "targeted repair and systematic verification". Hardware failure requires replacement of worn parts and repositioning for installation, such as ensuring that the parallelism error of the grating ruler is within 0.01mm/m during installation; The software calibration criteria achieve error correction by adjusting the data collection frequency and updating compensation parameters. After calibration is completed, the effect needs to be confirmed through three-level verification: first, static accuracy verification is carried out using standard measuring blocks, then dynamic accuracy verification is carried out through typical workpiece trial grinding, and finally the dimensional stability of continuous machining is tracked.

In addition, establishing a regular maintenance mechanism is key to preventing error failures. It is recommended to clean and tighten the hardware every month, conduct comprehensive testing and calibration every quarter, and dynamically adjust the maintenance cycle based on the amount of processing tasks. Through the closed-loop management of "detection calibration maintenance", the occurrence rate of measurement system errors and failures can be effectively reduced, ensuring the long-term stable machining accuracy of the vertical axis moment table surface grinder.