As a high-precision and high-efficiency metal processing equipment, double disc grinding machine is widely used in automotive parts, bearings, hydraulic components and other industries. In order to maintain its long-term stable operation, reduce the failure rate and extend its service life, a reasonable maintenance system is indispensable. However, many users in the maintenance process there are some cognitive misunderstandings, but affect the performance of the equipment.
First, the maintenance cycle is divided
The maintenance of double disc grinding machine can be usually divided into routine maintenance, regular maintenance and annual maintenance at three levels:
1. Daily maintenance (daily/each shift)
* Wipe down the surface of the equipment to keep the appearance clean;
* Check the grinding wheel for cracks and missing corners to avoid accidental breakage;
* Check whether the coolant is sufficient and deteriorated, and replace it if necessary;
* Check whether the oil supply to each lubrication point is normal, such as guide rail, spindle and other key parts;
* Check whether the air pressure and hydraulic system pressure are within the setting range.
2. Regular maintenance (weekly/monthly)
* Clean the dust of the electrical box to ensure normal heat dissipation;
* Check whether the transmission parts such as belts and couplings are loose or aged;
* Calibrate the parallelism between the grinding head and the table to ensure the grinding accuracy;
* Replace or filter the coolant to prevent clogging by impurity deposition;
* Check the lubrication of the screw and guide rail, and add lubricant or grease if necessary.
3. Annual maintenance (every year or more than 3,000 hours of continuous operation)
* Comprehensively inspect core components such as spindle bearings, lubrication pumps and motors;
* Dismantle and clean the hydraulic system and replace the hydraulic oil;
* Perform safety test and parameter backup of the electrical control system;
* Request the manufacturer's technicians to conduct a comprehensive calibration and overhaul when necessary.
Second, common maintenance misunderstanding analysis
Even with the maintenance system, some users are still prone to the following misunderstandings in actual operation, affecting the use of equipment.
1. Ignore the grinding wheel status check
Misunderstanding: that as long as the grinding wheel is not broken can continue to use.
In fact, the grinding wheel used for a long time will lose sharpness, micro-cracks or imbalance phenomenon, not timely repair will affect the processing accuracy, and even cause equipment damage or safety accidents.
2. Lubricant is randomly selected and added randomly
Misunderstanding: Use universal lubricant or add oil randomly.
Grinding machine on the lubrication system requires high, especially the spindle, guide rail, screw and other parts need to use special lubricants, otherwise it is easy to accelerate the wear and tear or poor lubrication.
3. Coolant is not replaced for a long time
Misconception: only add without replacement, or even a year without replacement.
If the coolant accumulates too much metal chips and sludge, the cooling effect will be greatly reduced, and may also corrode the surface of the workpiece. It is recommended to filter it regularly and replace it according to the cycle.
4. Neglect the electrical system cleaning and fastening
Myth: Focus only on the mechanical parts and ignore the electrical control cabinet.
Electrical components are easy to loosen and heat up in long-term operation, and dust accumulation will also cause short circuit or malfunction. Regular cleaning of the electrical control box and check the wiring looseness is very necessary.
5. Idle equipment without maintenance
Misunderstanding: think idle without maintenance.
Equipment downtime for a long time if you do not take protective measures, the lubrication system will dry out, the guide rail rust, oxidation of electrical contacts. Even if not in use, but also regular power on, lubrication, power patrol.