Industrial robots need a precise and simple end-effector that can handle many different parts, and it is necessary to know what type of parts will be handled before selecting the claw of the industrial robot. This article lists six key points that we systematically consider when selecting a robot hand.
1) Shape
Asymmetrical, tubular, spherical and tapered parts are a headache for robot cell designers, it is very important to consider the shape of the part, some fixture manufacturers are able to pick different fingertips, can add to the fixture to get used to the specific application, and ask if the fixture can be suitable for your detailed application.
2) Scale
The minimum and maximum scales of the object that will be processed are very important data. You need to measure a few other orientations to check the optimal gripping orientation of the fixture. The need to consider a few shapes of the interior and exterior.
3) Number of parts
Whether it's using a thing changer or a self-habituation fixture, it's necessary to make sure that the robot gets the right handle of all parts. Tool changers are big and expensive, but they can work on the virtual part of a part with the right customization.
4) Portions
It is necessary to know the maximum weight of the part. To understand the payload of the gripper and robot. Secondly, ensure that the gripper has the required clamping force to handle the part.
5) Materials
The information component of the component will also be an important part of the clamping plan. Scales and components can be handled by fixtures, and the data needs to be compatible with fixtures to ensure that the parts are grasped. For example, some grippers cannot be used to handle fragile items (e.g. ceramic, wax, thin metal or glass, etc.), simply damaging items. However, for self-habituation fixtures, gripping the surface can appropriately reduce the impact on the fragile part of the surface, so the force control fixture can also be part of the solution plan.
6) Production plan
The demand is based on whether the production of the product will change over time, and if the assembly line has been making the same parts for the past decade, it may not change as often. On the other hand, if the assembly line is going to integrate new parts every year, it should be considered that the fixtures should be able to get used to these additions. It is even possible to consider whether the gripper used is accustomed to other applications. With this in mind, pick a gripper that will allow the gripper to get used to the potential future operation of the robot cell.
Once the part standard is confirmed, this data can be compared to the available fixture standard. After passing through the shape and scale of the parts to be processed, it is possible to confirm the stroke of the jig that is required. Taking into account the information and weight of the part, the required clamping force is calculated. What are the different parts that the fixture can handle, you can see if the robot needs a tool changer, or maybe if a single fixture is working properly.
Choosing the right gripper can make the industrial robot function well and get the most out of it.
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