Manufacturing companies or operators who use machine tool probes know that the system error of machine tool probes is the most common among the factors affecting the accuracy of machine tool probes.
At present, the system error of the machine tool probe is mainly divided into three types: the static error of the machine tool probe, the dynamic error of the machine tool probe and the installation error of the machine tool probe. Pioneer will introduce them as follows.
The static error of the machine tool probe is caused by the susceptibility to the stiffness, length of the machine tool probe rod or stylus, or the contact pressure parameters during detection. This error includes dead zone error and repeated positioning error of machine tool probe.
Dead zone error refers to the measurement error caused by the bending deformation of the machine tool probe rod or stylus after the machine tool probe touches the workpiece.
As the name suggests, the repeated positioning error of the machine tool probe is caused by the error generated in the repeated positioning measurement, and the probability of this error is generally small. Therefore, in many cases, the static error produced by the machine tool probe in the measurement is basically caused by the dead zone error.
The dynamic error of the machine tool probe is related to the contact speed of the machine tool probe and the sampling interval of the CNC system. The speed is too fast or too slow, or the sampling detection measurement interval is the direct cause of the error. And this kind of error is also very easy to control. It is only necessary to clarify the best detection speed and measurement interval in the setting procedure.
The installation error of the machine tool probe is generally caused by errors in the software and hardware installation process of the machine tool probe. This error is largely caused by human installation factors. Therefore, in general, as long as the correct installation of the corresponding machine tool probe is installed, the error can be easily solved.
The system error of the machine tool probe is an important factor that affects the measurement result of the machine tool probe and the measurement error compensation result. Therefore, the manufacturing enterprise or machine tool operator should learn to analyze and understand the cause of the error, so as to better solve the error and let the machine tool probe has more accurate data during the measurement and inspection process.