Precision hardware parts have relatively high requirements for strength and toughness in actual wor...
Precision hardware parts
have relatively high requirements for strength and toughness in actual work. Its working performance and service life are closely related to its surface performance. The improvement of surface performance cannot be achieved solely by relying on materials, and it is also very unreliable. It is economical, but the performance must be up to standard in actual processing. At this time, surface treatment technology is needed, which can often achieve a multiplier effect. In recent years, this technology has also been developed rapidly. Mold polishing technology is a very important link in the field of mold surface treatment, and it is also an important process in the process of workpiece processing. The surface treatment process of precision hardware parts is very important in the processing process, so what are the surface treatment processes of precision hardware parts?
It is worth reminding that the mold surface polishing work of precision parts is not only affected by the process and polishing equipment, but also by the mirror surface of the part material. This is not enough in the current processing. This also shows that the polishing itself is affected by the material. Although the processing technology to improve the surface performance of precision parts is constantly innovated and upgraded, the most commonly used in precision parts processing is mainly hardened film deposition, nitriding and carburizing technologies.
Because the nitriding technology can obtain a very high level of surface performance, and the nitriding technology has a very high coordination and consistency with the quenching process of steel in precision parts, and the nitriding temperature is very low, so after the nitriding technology After the nitrogen technology is processed, there is no need for an intense cooling process, so the deformation of the precision parts will be very small. Therefore, the nitriding technology is also one of the earliest technologies used to strengthen the surface performance in the processing of precision parts, and it is also currently used. The most extensive.
The accuracy of hardware parts almost determines the quality of the product. The more precise the hardware parts, the higher the accuracy requirements will be. So why does the precision of the precision hardware parts become worse? Let us take a look together.
The first factor is the poor machining accuracy of the parts themselves. Generally speaking, if the dynamic error between the shafts is not adjusted well during installation, or because the shaft drive chain changes due to wear, the accuracy of the parts will be affected. Generally speaking, the accuracy check caused by this type of error can be solved by re-adjusting the compensation amount. If the error is too large or even if an alarm occurs, it is necessary to check the servo motor to see if its speed is too high.
The second factor is that the overshoot of the machine tool during operation will also affect the machining accuracy. It may be because the acceleration and deceleration time is too short. Prolong the change time appropriately. Of course, it is also very likely that the link between the lead screw and the servo motor is loose. .
The third factor is that the roundness caused by the two-axis linkage is out of tolerance, the machine is not adjusted properly to form a circular axial deformation, the screw gap compensation of the shaft is not correct or the shaft positioning is offset, which may affect the accuracy of the precision parts. Make an impact.