Manipulator is an automatic operating device that can imitate certain action functions of human hands and arms to grasp and carry objects or operate tools according to a fixed program. It is characterized by the fact that it can be programmed to complete a variety of expected tasks, and has the advantages of both human and robotic devices in terms of structure and performance.
Manipulator is the earliest industrial robot, but also the earliest modern robot, it can replace the heavy labor of people to achieve mechanization and automation of production, can operate in harmful environments to protect personal safety, so it is widely used in machinery manufacturing, metallurgy, electronics, light industry and atomic energy and other departments.
The manipulator reciprocates every day, especially the special mechanical arm of the injection molding machine reciprocates up and down twice per cycle, and the speed up and down in the mold is very fast, and the requirements for up and down shock absorption are very high. If the buffer fails, the pneumatic actuator has no shock absorption function when the reciprocating motion stops positioning, resulting in a large vibration of the special manipulator for the injection molding machine.
Most of the connection parts of the special manipulator of the injection molding machine are fixed by screws, and the screws are loose and loose due to long-term vibration, which will inevitably cause the special manipulator of the injection molding machine to fall apart and the connecting blocks of the parts to break. Due to the vibration of the special manipulator of the injection molding machine, the wire joints are loose and loose, the relay is loose and loose, resulting in poor circuit contact and other phenomena, resulting in the disorderly action of the special manipulator of the injection molding machine, the electronic control crash, and the burning of the electronic control.
So what problems should be paid attention to in the daily maintenance of the manipulator?
Hydraulic buffer: This kind of accessories is a one-year or 1.5 million times warranty from the supplier, and must be replaced regularly, and wire connectors, plugs, sockets, etc. must be regularly checked and sorted out for 12 months. About 24 months to replace the cylinder end head seals, check the air pipes, joints, excluding servo drive manipulators.
Pneumatic components: the actions of the simple and multi-functional manipulator all rely on the propulsion of the air source, and the air source must be stable, with small fluctuations and no water; Because gas and water are two different media, gas is invisible, water is tangible, solenoid valve is a precision component, water in the electromagnetic, trachea, cylinder retention will produce scale, resulting in reversing solenoid valve stuck, channeling, gas seal wear, cylinder enrichment, air leakage, etc., cylinder action when powerless, crawling, no action or sudden fast action, trachea, joint bursting and other phenomena.
Therefore, enterprises must pay attention to regular maintenance when using manipulators, so as to give full play to the maximum utilization rate of equipment and reduce the economic losses caused by major failures.
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