When the machining accuracy of the fully automatic intelligent grinding and polishing machine decreases, it is necessary to investigate the reasons and take targeted solutions from multiple aspects of the equipment operation. This process requires a detailed and systematic combing of various factors that may affect the accuracy to avoid recurrence or expansion of problems due to blind treatment. The decrease in machining accuracy is often not caused by a single factor, but a comprehensive reflection of many aspects such as the mechanical state of the equipment, parameter settings, and the use of consumables. Therefore, when solving it, it is necessary to follow the logic of investigation from basic to complex, and gradually locate the crux.
First, check whether the mechanical parts of the equipment are loose or worn. In the long-term operation of the fully automatic intelligent grinding and polishing machine, the screws, bearings and other parts of the connection parts may become loose due to vibration, or the gears and guide rails of the transmission system may increase the gap due to wear. These changes in mechanical structure will directly affect the operation accuracy of the grinding disc, thereby reducing the surface accuracy of the workpiece. At this time, it is necessary to conduct a comprehensive inspection of the key mechanical parts of the equipment, such as checking whether the grinding disc is installed firmly, whether the transmission belt is loose, whether the guide rail slider has abnormal shaking, etc., tighten the loose parts, and replace the severely worn parts in time to restore the stability of the mechanical structure of the equipment.
Secondly, we should pay attention to whether the surface condition of the grinding disc meets the processing requirements. As a component that directly contacts the workpiece, the surface flatness and wear degree of the grinding disc have a significant impact on the processing accuracy. If there are scratches, unevenness or severe local wear on the surface of the grinding disc, the grinding pressure will be unevenly distributed, which will reduce the surface processing accuracy of the workpiece. At this time, the grinding disc needs to be repaired, and the surface of the grinding disc is flattened by a special repairing tool or repairing program to ensure that the surface flatness of the grinding disc meets the processing requirements. If the degree of wear of the grinding disc has exceeded the range of the repairing disc, a new grinding disc needs to be replaced in time to avoid the continuous impact of the grinding disc problem on the processing accuracy.
Whether the parameter setting of the equipment is reasonable is also an important factor leading to the reduction of processing accuracy. The processing parameters of the fully automatic intelligent grinding and polishing machine, such as grinding pressure, speed, processing time, etc., need to be accurately set according to the workpiece material, size and processing requirements. If the parameters are set improperly, for example, excessive grinding pressure may cause excessive grinding of the workpiece surface and dimensional deviation, and too low speed may affect the grinding efficiency and surface finish. When it is found that the processing accuracy has decreased, it is necessary to recheck the process parameter settings, refer to the equipment operation manual or process specifications, and optimize the parameters in combination with the actual processing requirements of the workpiece. If necessary, a small batch trial processing can be used to verify the rationality of the parameter settings to ensure that the parameters match the processing requirements.
The use of grinding consumables also needs to be checked. The concentration, particle size and use time of consumables such as abrasives and polishing fluids will directly affect the grinding and polishing effect. If the abrasive concentration is too low or the particle size is uneven, it may lead to insufficient grinding efficiency or inconsistent surface grinding; if the polishing fluid is used for too long and deteriorates, it will also affect the polishing accuracy. At this time, it is necessary to check the quality and amount of consumables, and replace the abrasives and polishing fluids that meet the requirements in time to ensure that the consumables are within the validity period and have stable performance. At the same time, it is also necessary to pay attention to whether the supply system of the consumables is normal, such as whether the spraying of the abrasive is uniform and whether the circulation of the polishing fluid is smooth, so as to avoid affecting the processing accuracy due to consumable supply problems.
The clamping method and positioning accuracy of the workpiece may also lead to a decrease in processing accuracy. If the workpiece is loose, tilted or the positioning reference is inaccurate during the clamping process, the workpiece will shift during the grinding and polishing process, resulting in processing size deviation. Therefore, it is necessary to check whether the workpiece clamping device is intact and whether the clamping steps are standardized to ensure that the workpiece is firmly and accurately fixed in the processing position. For high-precision processing requirements, the clamping positioning reference needs to be calibrated. The verticality and parallelism of the workpiece after clamping can be checked by using a meter to ensure that the clamping positioning meets the processing requirements and avoid affecting the processing accuracy due to clamping problems.
Environmental factors also have an important impact on the processing accuracy of the fully automatic intelligent grinding and polishing machine. Factors such as temperature changes and vibration interference in the equipment operating environment may cause the mechanical parts of the equipment to expand and contract or operate unstably, thereby affecting the processing accuracy. For example, when the workshop temperature fluctuates greatly, the size of the grinding disc and the performance of the workpiece material may change, resulting in processing errors; vibrations generated by the operation of large machinery near the equipment will also interfere with the stability of the grinding and polishing process. At this time, it is necessary to improve the equipment operating environment, control the workshop temperature within a reasonable range, avoid the equipment being close to the vibration source, and if necessary, install a shock absorber at the bottom of the equipment to reduce the impact of environmental factors on the equipment accuracy.
If the machining accuracy problem is still not solved through the above troubleshooting, it is necessary to consider whether the system accuracy of the equipment needs to be calibrated or whether there is an abnormality in the software. The control system parameters and sensor accuracy of the fully automatic intelligent grinding and polishing machine may deviate due to long-term use, and the software program may also cause inaccurate instruction execution due to operation errors. In this case, it is necessary to contact the professional technicians of the equipment manufacturer and use special calibration tools to fully calibrate the system accuracy of the equipment, such as calibrating the position sensor, pressure sensor, etc. At the same time, check whether the software version is the latest, and upgrade the software or reset the system when necessary to ensure the normal operation of the equipment's control system and software program, and fundamentally solve the problem of reduced machining accuracy caused by system problems.
