Robots are high-tech mechatronics products that are affected by magnetism, electricity, light, vibration, dust, and other factors in the factory production environment. At the same time, robots work continuously for a long time and may generate changes such as heating and wear. Some small problems may lead to major accidents, affecting the entire production. To ensure the good operation status of the robot, it is necessary to conduct daily inspections and maintenance, promptly identify and solve problems.
Preventative Maintenance
|
Number |
Inspection items |
Checkpoints |
|
1 |
Abnormal noise inspection |
Check if there is any abnormal noise in each transmission mechanism |
|
2 |
Interference check |
Check if each transmission mechanism operates smoothly and if there is any abnormal shaking |
|
3 |
Air cooling inspection |
Check if the fan behind the control cabinet is ventilated smoothly |
|
4 |
Inspection of pipeline accessories |
Is it complete, worn, and rusted |
|
5 |
Inspection of peripheral electrical accessories |
Check whether the external wiring and buttons of the robot are normal |
|
6 |
Leakage inspection |
Check for leakage of lubricating oil at the oil supply and discharge port |
Inspection of lubricating oil
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Please measure the concentration of iron powder in the lubricating oil of the gearbox (iron content ≤ 0.015%) every 5000 hours of operation or every 1 year (<2500 hours of operation for loading and unloading purposes or every six months). When the standard value is exceeded, it is necessary to replace the lubricating oil or gearbox. Please contact our company's service center.
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During maintenance, if more than the necessary amount of lubricating oil flows out of the machine body, please use a lubricating oil gun to replenish the outflow part. At this point, the nozzle diameter of the lubricating oil gun used should be φ Below 8mm. When the amount of lubricating oil replenished is greater than the outflow, it may lead to lubricating oil leakage or poor trajectory during robot operation, and attention should be paid.
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After maintenance or refueling, in order to prevent oil leakage, it is necessary to wrap sealing tape around the lubrication oil pipe joint and the hole plug before installation.It is necessary to use a lubricating oil gun with a clear amount of oil to be added. When it is not possible to prepare an oil gun with a clear amount of oil to be refueled, the amount of oil to be refueled can be confirmed by measuring the changes in the weight of the lubricating oil before and after refueling.
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When the robot has just stopped for a short period of time and the internal pressure rises, lubricating oil may spray out at the moment of removing the access plug.
Precautions for installation and maintenance of harmonic reducer
① According to the service life of the reducer provided by the reducer manufacturer, the design life of each shaft harmonic reducer is 15000h.
② The harmonic reducer is a high-precision component that has extreme stress. Excessive pushing, pulling, and unreasonable collision can cause damage to the internal structure of the reducer, resulting in reduced accuracy or abnormal noise. In severe cases, it can cause the flexible wheel of the reducer to break and the reducer to be scrapped.
③ The harmonic reducer must be installed in a sufficiently clean environment, and no foreign objects are allowed to enter the interior of the reducer during installation to avoid damage to the reducer during use.
④ Please ensure that the gear surface and flexible bearing parts of the reducer are always fully lubricated. It is not recommended to always use the gear face upwards, as it will affect the lubrication effect.
⑤ After installing the cam, please confirm that the engagement between the flexible wheel and the rigid wheel is 180 degrees symmetrical (Figure A). If it deviates to one side (Figure B), it will cause vibration and quickly damage the flexible wheel.
⑥ After installation, please run at low speed (1000 rpm) first. If there is any abnormal vibration or noise, please stop and contact our company in a timely manner to avoid damage to the gearbox due to incorrect installation.
