Used Robot Automation
Used Robot Automation
Second-hand Robots Planning
When investing second-hand robots, it is essential to plan for future expansion or changes. Planning for future is not always straightforward, one of the first step will be to outline the concepts, then review with an expert in robotics or the project manager in charge of the project. The two main considerations for selecting a used robot is the payload and working envelope.
What is the robot payload?
The Robot payload is the weight a robot arm can lift including the weight of the end of arm tooling and a work area is the reaching space. Therefore, the configurations, axes or degrees of freedom will influence the reach of the robot. Thus, when these features are equally present on the used robots, it will give you the maximum benefit.
Follow these strict procedures to certify second-hand robots:
- Clean, prepare and paint used robots with a 2-part epoxy paint for extra protection from the outside.
- Check backlash and repeatability of all axes to re-certify to the original specifications.
- Replace any components that don’t meet the specifications including gearboxes, motors, and cables.
- Look for any rusted part which is very common in used robots and replace them with a new one.
- Conduct a full preventative maintenance check, changing grease and controller batteries.
- Add water resistance and cooling system in the robot to increase its lifeline.
- Load controller with the latest software revision available for the particular controller and update with a base
- Software package depending on the client’s specifications or applications.
- Install the latest and genuine software to avoid malfunctioning.
- Add any other software options including vision, rail or turntable
- Perform an eight-hour runoff at full payload to ensure that the robot is working properly
When investing in used industrial robots, it is crucial to consider the following:
- A robot and its controller
- The condition of the internal and external parts of the used robot
- Replace some components in the controller such as a servo amplifier for better performance
- Hours of operation for a robot are not necessarily the same as the robot wear and tear.
- Workload taking capacity of the robot’s arms and internal mechanisms
- Cooling capacity or heat resistance power of the robot’s control system
- Another element to consider is how to program the robot, i.e. how smoothly the robot performed in its previous application.
- It is important to confirm whether or when the robot’s motors/gearboxes were changed, because the motors and gear boxes are typically the most expensive components that will fail on a robot, starting with the wrist (least expensive) to axis one, or base gearbox and drive motor (most expensive and time consuming to replace).
- In addition, don’t assume that your used robot will automatically come with the End-of-Arm tooling. We can provide and help you to find a suitable tooling according to your specific applications.
A team of experts with years of experience and knowledge can help before and after the robot system installation and commissioning.
See also The Future of Robotics,
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