A detailed explanation of Universal Robots in each application

1. Tighten with small torque

Small torque tightening also has many application scenarios in the 3C and automotive industries. Many users think that the lock screw application can be performed with a screw machine, but in some scenarios, the screw tightening is not on a flat surface, and the screw machine cannot be used. So what to do?

The UR six-axis robot is ideal for this type of application, as each joint of the robot can be rotated plus or minus 360 degrees, so that there are no dead spaces in the spherical work area, and the user can arrange the station at any angle.

In addition, the free dragging function of the UR cobot makes it very convenient for users to redeploy. The mass station presented by Universal Robots consists of a vibrating disc that stops the alignment and alignment of the parts. In addition, the screw gun equipped with this application has an adsorption mechanism, which can absorb the screws and move to the designated station device with the movement of the robot - corresponding to a laptop back plate and a mobile phone (using M1 screws) to stop the screw tightening operation. In this application, several advantages of the Universal Robots cobot are fully demonstrated.

First of all, the cobot has a compact structure, which makes the footprint of the entire workpiece very small; In addition, in the programming process, the free dragging function of the collaborative robot is used, and the robot is dragged to the desired position, and the waypoint is further fine-tuned, so that the programming efficiency is higher. The feeder connected to this application can choose an automatic discharge mechanism (of course, in many scenarios it can also be used to feed the material in a fixed position). In practice, Universal Robots has had customers use the UR10 robot flip to stop a similar Screw Tightening (M3) application.

2. Robot painting

Universal Robots' painting demonstration station attracts a lot of visitors every time it is exhibited, but what is the "industrial scene" about this application?

The Painting Station is a very popular application for the vocational education industry. A drawing board, a pen, a pad, and a robot form the whole system, which is very simple.

In this application, the UR3 is a lightweight desktop robot with a very small footprint, which is enough to be installed even on an ordinary desk. In addition, there is no additional hardware configuration for the robot, and the openness of the UR cobot allows it to easily interact with the tablet without the need for external components. Therefore, in addition to the application of painting, it also brings inspiration to many interactive applications. That's why many university research institutes prefer Universal Robots as a vehicle for academic research.

3. Flexible feeder

The flexible feeder consists of a 2D camera, a feeder and a UR3e robot. The 2D camera locates the object on the pan, and the loader vibrates the object from a pile of bulk material onto a flat surface.

The advantage of planning in the loading phase is that a three-dimensional problem can be reduced to a two-dimensional problem. If, according to the traditional method, irregular objects are placed in baskets for sorting, the feasible plan is often to use 3D vision. However, due to the cost, accuracy, and on-site debugging threshold of 3D vision, the practical application of users often poses a very big challenge. A simpler way is to apply the characteristics of vibration, scatter a pair of materials from the basket onto a flat surface, arrange the vibrations into an ideal shape, identify them with a 2D camera, and then use a cobot to select the purpose. This means being able to handle 3D problems with a mature 2D plan, which increases efficiency.

In addition, the suite of apps demonstrates the benefits of the UR+ platform – providing users with plug-and-play plans. The camera in this application used to be in the UR+ certification stage, and the feeder was a mature UR+ product, so it was quick and easy to use. The vibration speed and direction of the feeder can be stopped on the robot teach pendant: the tray can turn over, disperse, or move in one direction and move closer together. Sensitive processing schedules are provided to the users.

Of course, in this application, Universal Robots not only stops sorting the parts, but also performs the task of pre-screwing the screws. For example, in the automotive industry, large bolts are tightened, and the screws are pre-tightened to the fixed position before tightening, and then the screws are tightened to the required intervals at one time by the bolting machine. The seemingly simple pre-screwing process also has technical content: because the screws are not processed accurately, the traditional method is more difficult to complete and the pre-screwing operation is often stopped manually. In this plan, the wrist force control function of UR3e is used to complete the pre-screwing of the screws. If the robot detects that the screw is pre-screwed, the robot can automatically identify and stop the follow-up action.

4. Three-arm assembly application

Three-armed demonstrator stations are rarely seen in ideal application scenarios, so what is the significance of this station?

The significance of this workshop is that it mimics the three processes in the manufacturing process of PCB boards:

1. PCB handling, 2. PCB direct insertion of the original insertion, this action is still mostly manually stopped. While there are some plug-in machines that can stop similar operations, they are not yet 100% able to handle such needs. Therefore, for some large special-shaped or not very good divergent components, it is not possible to use plug-in machines to work now. Therefore, the robot can be used to stop this task: first, after visual positioning, the material is loaded at a fixed position, the plugging is completed, and another equipment is used to stop the soldering after the plug-in is completed.

This is another process of this station, 3. Soldering. Soldering is usually performed in different ways, such as selective soldering or repair soldering, and when the previous process detects that the soldering is not complete, it is necessary to stop the repair soldering. At present, most of these jobs are done manually, and they may also be the application direction of robots in the future.

The result is an integrated, collaborative application demonstration of the multi-unit and multi-model processing plan that can be used together by Universal Robots.

A detailed explanation of Universal Robots in each application

A detailed explanation of Universal Robots in each application

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