Talking about the current advantages and disadvantages of industrial robots

: At present, the use of Chinese industrial robots is mainly concentrated in the automotive industry and electrical and electronic industries, arc welding robots, spot welding robots, and handling robots.

Here we will talk about the current advantages and disadvantages of industrial robots from a technical point of view.

1. Universality

Industrial robots are programmable and support multiple degrees of freedom for movement, so applications are more flexible. Although less than humans, industrial robots are much more flexible than many common planes for industrial automation (specially for a class of industrial applications or a customer-customized electromechanical integration solution). When industrial application changes are not too big, it is possible to meet new requirements through robot reprogramming without having to invest a lot of money in hardware. But correspondingly, its relative deficiency will be efficiency. After all, the special plane is customized for an application, so although the commonality is sacrificed but the efficiency is optimized, the output that this customer is very concerned about can be done well.

2. Electromechanical performance

Industrial robots generally achieve a motion accuracy of less than 0.1 mm (referred to as repetitive motion to point accuracy), and grab objects weighing up to one ton, stretching up to three or four meters. Although such performance may not be able to easily complete some "crazy" processing requirements on Apple's mobile phones, for most industrial applications, it is enough to complete the task. As the robot's performance has gradually improved, previously impossible tasks have become feasible (such as laser welding or cutting, had required special high-precision equipment to guide the direction of the laser, but with the improvement of the accuracy of the robot, now also become DEK can rely on the accurate movement of the robot itself instead.) However, compared to traditional high-end equipment, such as high-precision CNC machine tools, laser calibration equipment, or special environment (high temperature or low temperature) equipment, industrial robots are still unable to.

3. Human-machine cooperation

The traditional industrial robot is working in a cage because it is really dangerous (Imagine a guy who is holding dozens or hundreds of kilograms at a speed of four meters per second, and who doesn't want to be near it). The main reason is that general robots, based on cost and technical considerations, do not integrate additional sensors to sense external special situations (such as sudden people touch), it will only "silly" according to the human program Day's move unless there is an external signal telling it to stop. So the common solution is to equip the robot with a cage. When the cage door is opened, the robot will automatically pause when it receives the signal. Security considerations naturally bring a lot of extra costs to the integration of robots. The cages may not be expensive, but after all, careful consideration should be given to the layout of production lines, increase the production line area, change the cooperation mode of man-machine, etc., and thus affect the production. effectiveness. Therefore, industrial robots that have recently attracted more attention are proud to work with people safely, such as Baxter from Rethink Robotics, PR series from Universal Robots, and semi-concept semi-finished products from many traditional industrial robot giants (abb, kuka, Yaskawa, etc.). Robot. From the perspective of industrial demand, after the traditional industrial robots have solved the automation requirements such as the accuracy of speed and weight, it is indeed time to start meeting human-machine security cooperation.

4. Ease of use

The essence of the work of traditional robots is to constantly go one by one, and at the same time receive or set peripheral I/O signals (old and other settings such as fixtures, conveyor lines, etc.). The process of guiding the robot to do this is robot programming. Almost every leading company has its own programming language and environment, which requires robot operators to participate in learning and training. When the robot's scope of application has increased, this cost has begun to show.

These manufacturers have reason to maintain their own programming environment. Once industrial robots began to be scaled up forty years ago, there was no object-oriented and other well-known mainstream mainstream programming concepts. Stage technology will inevitably be different from competitors. It is understandable to maintain a programming method. Thirdly, because their large customers are also traditional industrial large customers, such as large car manufacturers, these customers seek stability and naturally do not want you to have robots for several years. The rush to change programming methods, they have to throw away decades of experience, to spend a lot of money training.

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