Automated manipulators may cause failures. Since most of the joints of the manipulators are fixed by screws, the screws may become loose due to a long-term sensation; the manipulators may fall apart, and the connecting blocks of the components may break.

On the other hand, the reason for the sensation of the manipulator is caused by the loosening of the wire joints, the loosening of the relays, and the poor contact of the circuit. Causes the manipulator to move randomly, the electronic control crashes, and the electronic control burns out.

Things to keep in mind for daily protection tasks:

Oil pressure buffer: change as scheduled.

Long-used cylinder end cover seals, review air pipes, and joints should be replaced in time.

Review and rectify wire connectors, plugs, sockets, etc. as scheduled for 12 months.

Pneumatic components: All actions of the simple, multi-function manipulator rely on the air source for propulsion, and the air source must be unchangeable, small and water-free.

Since air and water are two different media, the gas is invisible, and the water is tangible. When water stays in the air pipe, cylinder, and solenoid, scale will occur, which will cause the solenoid valve to jam, blow-by, and the air seal is worn. When the cylinder moves, it shows weakness, creeping, no action or sudden quick action, and the air pipes and joints burst.

To sum up, automated manipulators can efficiently replace manual labor to improve the production efficiency of enterprises, and the maintenance cost is low, but the daily protection should also be carefully protected. Avoid the formation of automatic manipulator failures, and avoid affecting the production efficiency of the company's products. Rubber automation

For the operator, the daily protection of the manipulator is very important. Next, the editor introduces some considerations to us:

1. Rails and bearings

The guide rails and bearings at all shafts should be clean and excellent smoothness. If the manipulator is operating in a dusty environment, the guide rails need to be arranged frequently. If you find any metal fragments or powder, it may indicate that it is not smooth. In order to ensure proper smoothness, it is very important to have a proper linear guiding system. Most manipulators have an automated smoothing system and parts that need to be replaced regularly.

2. Manipulator cycle cycle

One of the keys to maintaining the outstanding operation of the manipulator is simple observation and listening, which can reveal a lot of information about the overall operation of the manipulator. The manipulator has gone through detailed operations, so listen to any abnormal sounds, such as howling, clicks, etc., which indicate that the bearing cannot rotate normally or some other component is stuck.

The link part of the manipulator moves along the guide rail equipped with the power cable and the vacuum hose, and a normal ticking sound will be announced, but the sound is smooth and stable. Check any bearings that can be observed to make sure they rotate smoothly. Just looking at and listening to some signs of wear or adjustments can greatly help maintain the best operating condition of the manipulator.

3. Drive system

If the manipulator is driven by the device frame-transmission gear, pay attention to whether there is any hesitation or shaking during operation. Except for smooth and smooth movements, all movements can indicate damage to the drive system or some foreign objects stored inside. When the manipulator pushes down to move, the quick way to check the action or backlash between the device beam and the transmission gear is to push and drag the moving arm to feel abnormal movement (the back and forth movement is different).

However, due to the high tolerance accuracy of normal manufacturers, this experimental method will be very inaccurate. If you suspect that there may be a problem with the device beam and the transmission gear, a better solution is to use a long-range magnetic stand. After adjusting the backlash according to the manufacturer's instructions, check the full stroke of the shaft to ensure that there is no tightness between the device beam and the transmission gear.

If the backlash cannot be adjusted, the device frame and transmission gear may show wear and need to be replaced. If it is necessary to repair the device frame and the transmission gear, it is best to replace both components at the same time to ensure long-term performance.

As for the shaft driven by the conveyor belt, pay close attention to the debris dropped from the conveyor belt and its own hazards. Look closely at the pulleys, paying attention to the traces of dust originating from the conveyor belt material. Ensure that the conveyor belt and drive pulleys and sheaves are completely aligned in rows. Conveyor belts that go against the direction will wear out very quickly. As long as the system is driven by the conveyor belt, the preload of the conveyor belt itself can be checked according to the manufacturer's specification. These standards will inform you: the appropriate amount of error in the detailed orientation of the conveyor belt relative to the pulley.

4. Pneumatic system

Including the multi-axis servo drive, almost all manipulators will have pneumatic functions with only the wrist rotation and vacuum grasping action. Pay close attention to the suction cup of the filter regulator unit. The accumulation of water indicates that the compressed air source passing through the system has excessive humidity. The presence of a small amount of water vapor may be transmitted to the pneumatic valve and actuator, forming oxidation and internal pollution, and eventually may cause the pressure regulator to stick or the actuator to stick or fail intermittently. Rubber automation

If the suction cup is equipped with an automatic dehumidification system, contamination or discoloration on the suction cup also indicates that moisture is increasing before it is removed. If water collects in the suction cup, it can enter the system even if the time is short, causing the above-mentioned problems. If you notice any physical damage to the pneumatic hose, there may be a leak in the system.

If the pneumatic circuit is filled with air under normal operating pressure and there is a leak somewhere in the circuit, then you should be more likely to find a significant hissing sound, which will help you determine the location of the leak.

5. View molding equipment

The standard-equipped manipulators are generally installed on the template of the molding equipment. When the equipment is running fast, the vibration from the molding equipment may be transmitted to the manipulator and may cause damage. Simply observe the operating conditions of the molding equipment to ensure that the mold movement is adjusted to a reasonable state, reduce the number of shaking or vibration, and extend the life of the manipulator.

In high-speed operation conditions, the vibration frequency may be very high, and it is best to install the manipulator on a supporting structure independent of the molding equipment.

6. Pay attention to wiring wear

When looking at the appearance of the manipulator, if black particles or powder are found, it indicates that there are signs of wear on the wiring of the manipulator circuit. However, even if you can’t find these signs of wear, carefully check all power, transformer or encoder cables. The front and back sides of the wiring path are okay. During the production cycle, the wiring of the robot is rubbed one after another, or connected to the cable guide. The wiring on the board will eventually wear out and fail. Ensure the safety of wiring ties and reasonable installation of cables. Rubber automation

7. View smooth

The manipulator uses a smooth rod loaded by a tension spring. Unless there is evidence that the guide rail is not sufficiently smooth, it only needs to be replaced once a year. Equipped with an automatic smoothing system, it can smoothly follow the movement of the manipulator one after another. However, if there are some appearances on which the manipulator cannot move normally, then manually smooth these areas, or realize the smooth timing program control action of the automatic system for smoothing.

If you find rust spots, corrosion or abrasion on any sports surface, maybe it's just too dry, it means that they are not smooth enough. Always refer to the manipulator manual to smooth the metal parts reasonably. The device beam-traditional gear system is automatically smoothed through the smooth oil storage unit, but it needs to be replaced every year.

8. Vacuum gripper circuit

The vacuum should be nearly instantaneous, and the appropriate controller input should be equivalent to grabbing the product. If you find that you turn on the vacuum, and then present the input light source, the delay time exceeds 2 seconds, then it indicates that there is a leak in the vacuum line, there is a defect, or the switching device is not properly adjusted. The main control panel can be easily tested after the plug-in.

If the manipulator is equipped with a digital vacuum switching unit, it can quickly and automatically fine-tune the minimum threshold of vacuum required to grasp the product. This process can be completed when the manipulator is running in automatic operation mode. Save the setting parameters of each production cycle in the memory, which can save time in the next production change.

The digital vacuum switching device has two other advantages: the electronic filter of the capture threshold signal compensates for the vibration of the product on the vacuum chuck during rapid movement. The product release threshold is different from the grab threshold and can be programmed to ensure proper release under the conditions of a fast production cycle.