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What is the difference between collaborative robots and traditional industrial robots?

update:18-08-2020
abstract:

Collaborative models are a new direction of robot appli […]

Collaborative models are a new direction of robot applications that have become popular in the past two years. There are many differences between collaborative robots and traditional robots. I happen to have some project experience using collaborative robots and traditional robots. Based on my previous project experience, I will discuss the approximate differences between the two.

First, a very big difference between collaborative robots and traditional robots is the load of traditional robots, ranging from three kilograms to thirty to fifty kilograms, or even to three to five hundred kilograms, with very good products and models to choose from. The load of traditional robots ranges from light to heavy, and the product models are very complete. There are many product models to choose from. Collaborative robots are mainly lightweight and responsible robots. The mainstream ones on the market are three kilograms, five kilograms, five kilograms, and ten kilograms. Basically, the load is concentrated below 20 kilograms. Therefore, in terms of load, collaborative robots are used in lightweight applications. , Industrial application scenarios. These scenarios are mainly: gluing, testing, measuring, loading and unloading of materials and the medical industry! If the focus is on robots, there is no doubt that only choosing traditional robot collaborative robots does not have this ability.

Second, a very important feature of collaborative robots that is different from traditional robots is that the collaborative robots have collision detection. The collaborative robot can detect the forces on the joints very sensitively, and he can judge which forces are normal. Which forces are caused by the change in torque caused by the external resistance collision? With this technical feature, the collaborative robot can complete the seamless human-machine interaction, and avoid the threat of human collision injury caused by the interaction between the machine and the human. Then, it is very difficult for traditional robots to do this. Traditional robots must install additional safety fences during deployment to avoid potential safety threats that may be brought to people during the operation of the robot. So, from this point of view, collaborative robots are safer than traditional robots. Therefore, if there are many robots used in medicine, collaborative robots will be given priority.

Third, another very important feature of the collaborative robot is that it supports dragging and teaching. As the name suggests, the robotic arm of the collaborative robot is very sensitive. We can manually drag the robot arm to run the trajectory we want to run. Then, in this process, The robot system will automatically record the data of the entire trajectory. When we write the program, we can directly call the previously recorded trajectory data to reproduce the trajectory of the robot that was manually dragged, which greatly reduces the time for the later robot engineer to develop the program. , Which greatly improves the efficiency of engineer development.

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