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The difference between mobile collaborative robots and compound robots

2020-07-24 09:23:50 549 Editor:AGV

Taking ten years as a stage, starting from 2010, the average price of traditional articulated robots has plummeted from more than 300,000 yuan to about 150,000 yuan, and the price of scara has also dropped from more than 70,000 yuan to about 40,000 yuan. The price dropped from an average price of over 300,000 yuan to around 120,000 yuan.

But the sales of robots are still not going up.

This also makes everyone start to think about a question: When the return on investment of a company is close to or even reaching expectations, what is it that restricts the development of robots, and where is the future direction of robots? What is a robot that meets everyone's expectations?

Appearance: AGV compound robot


The manipulator arm replaces the hand, and the AGV replaces the foot, but they are all too single. Therefore, the AGV+manipulator is a composite robot that is expected to form an effect of 1+1>2.

However, this kind of patchwork robot is inherently problematic. The so-called success is also the failure, and the failure is also the failure. The sub-units of AGV, robotic arm, camera, and end effector represent that it has more functional modules. It can move, grab, identify, detect, etc.

But it also represents its higher technical difficulty and cost.

First of all, in terms of technical difficulty, the composite robot is mainly composed of AGV, manipulator, camera, and end effector. The common AGV composite robot in the industry is bought by integrators to purchase different products for assembly and secondary development. This leads to a relatively complicated structure of the robot. Because the controller of each sub-unit is different, its internal communication protocol is completely different, and the secondary development of the integrator is relatively complicated.

Secondly, it is the price of the product. There are hundreds of thousands of secondary developments of AGVs, robotic arms, vision systems, and integrators. Especially in the current global industrial chain adjustment, enterprises are more cautious in controlling equipment investment.

Many people say that the return on investment of the AGV composite robot is low. In fact, it is not. Because of the multi-functional modules such as grasping, moving, detection and recognition, the AGV composite robot is not born to replace a single station. Its value lies in Those application scenarios where one robot replaces multiple labors or multiple robots, especially island-type flexible intelligent manufacturing lines that cancel conveyor belts, such as CNC machining machine tools, 3C, clothing, automotive, etc. island-type production lines; in addition, For personnel operations in high-risk environments, single-arm or dual-arm AGV compound robots can also be used instead.

It can be seen that the problem with the AGV compound robot is not the market, but the product itself.


Perhaps it is aimed at this market. Recently, more and more collaborative robots and AGV companies are working on AGV composite robots. For example, in October 2019, Shenzhen AGV manufacturer Dongjin Intelligence signed a strategic cooperation with collaborative robot manufacturer Yangtian According to the agreement, the two parties will carry out in-depth cooperation around AGV composite robot technology, and broaden the comprehensive application of composite robots in intelligent logistics, smart factories and other fields.

Upgrade: Mobile AGV collaborative robot

But for integrators or terminal companies, they want to find a supplier that can provide one-stop procurement services such as robotic arms, AGVs, and vision, so there is an "upgraded version" of composite robots-mobile AGV collaborative robots . This kind of robot does not need the integrator to go to secondary development, and directly use a controller to solve all the components, which is faster, better, and more economical.

 The difference between AGV compound robot and mobile AGV collaborative robot

On February 4, 2020, UR and MiR announced that they will build the world's largest mobile AGV collaborative robot center in Denmark. Two industry-leading companies have joined forces to target new markets and new needs.

At the same time, most of the domestic products of the same type are simple combinations of AGVs and robotic arms, not mobile collaborative robots. This is because in addition to the fact that both parties need to be open about certain technical problems, the truly integrated design of mobile AGV collaborative robots requires very high overall control algorithms.

Take terminal control as an example. At present, the more popular operation method is teaching programming, that is, drag the robot to demonstrate the action first, but it is not feasible for the AGV compound robot.

Because the general positioning accuracy of the current AGV in the industry is about ±5mm to 10mm, it is often only possible to send the robotic arm to a rough position, which means that the location of the robotic arm is different each time, so integrators generally use vision Perform auxiliary positioning, which greatly increases the difficulty and cost of calculation.

At present, some manufacturers use the dual-vision assisted positioning method when doing CNC workshop projects, because the AGV can only transport the robotic arm to a rough position, but the vision has a field of view. The higher the accuracy, the smaller the field of view. So we have made two levels of positioning, coarse and fine. In addition, the entire process control requires PLC to coordinate processing, and the secondary development of vision and software is required. "

At present, there has been a domestic manufacturer specializing in new mobile AGV collaborative robots. Its mobile robot chassis uses mecanum wheels, which can achieve a repeat positioning accuracy of ±1mm. For applications with fixed operating positions, such as machine tool loading and unloading, assembly, etc., the accuracy of ±1mm has met the accuracy requirements of most scenarios. At this time, there is no need for visual secondary positioning, and the robot arm on the mobile AGV collaborative robot can be directly regarded as a fixed The robotic arm is used to improve production efficiency while saving customers the cost of vision modules.

However, due to material problems, the mecanum wheel has caused excessively high construction and maintenance costs, and the general body structure accuracy is difficult to meet, so the industrial scene is still waiting for technological breakthroughs.

Branch: Large humanoid service robot

The industrial scene pays attention to stability, but whether the breakthrough of interactive functions can make the mobile AGV collaborative robot change, and the future will evolve into a breakthrough for large-scale humanoid service robots for home use.

According to the "2020 Mobile Service Robot Industry Research and Analysis Report" published by the Advanced Robotics Industry Institute (GGII), China’s service robot market was 15.38 billion yuan in 2019, a year-on-year increase of 36.1%; from 2013 to 2019, China’s service robot market The average annual compound growth rate exceeds 30%.

At the 2019 World Robot Conference held last year, service robots, as the type of robot most closely related to people's daily life, aroused the keen interest of a large number of exhibitors.

According to industry insiders, based on the upgrading and optimization of artificial intelligence technology, the types of service robots are becoming more abundant, and their autonomy continues to increase. At present, the types of domestic service robots have changed from sweeping robots and food delivery robots, which are the first in the market, to emotional robots , Escort robots, educational robots, rehabilitation robots, supermarket robots and other directions, especially in the field of household services and service targets are constantly expanding.

Nowadays, many small household robots mainly focus on interaction and companionship, and it is not easy to realize physical interaction. In the future, large-scale humanoid service robots will replace more simple and repetitive labor tasks at home, and truly do things for people's daily lives.

Shenzhen Dongjin Intelligent Technology Co., Ltd. has focused on the development and production of AGV trolleys, AGV handling robots, AGV handling vehicles, laser AGV forklifts, and heavy-duty AGVs for ten years. It is an agv car manufacturer and agv intelligent robot manufacturer that masters core technologies. : Http://

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