How many axes does the hottest industrial robot ha

How many "axes" does an industrial robot have

with the promulgation of made in China 2025, the pace of the development of China's manufacturing industry is faster and faster. Industrial robots are widely used in all walks of life, and we find that they are not only different in shape, but also different in the number of axes

how many axes should industrial robots have

the axis of the so-called industrial robot can be explained by the professional term degree of freedom. If the robot has three degrees of freedom, it can move freely along the X, y, z axes, but it cannot tilt or rotate. When the number of axes of the robot increases, it is more flexible for the robot

in production, industrial robots generally need to be equipped with peripheral equipment in addition to their own performance characteristics, such as rotary table for rotating workpiece, mobile table for moving workpiece, etc. The motion and position control of these peripheral devices need to match with industrial robots and require corresponding accuracy

how many axes do industrial robots have now

at present, the number of industrial robots on the market ranges from one to seven, including not only single axis robots, but also seven axis robots. Let's meet robots with different axes

single axis and two axis robots are also known as linear modules, electric slides, etc. in China. They are a mechanical structure that can provide linear motion. At the same time, they can complete more complex work through combination. On the other hand, the name also shows that they can complete the specified work in a modular way, and at the same time, it shows that single axis robots have developed very mature

three axis robot is also called Cartesian coordinate or Cartesian robot. Its three axes can allow the robot to move along the three axes. This kind of robot is generally used in simple handling work

a four axis robot can rotate along the X, y, z axes. Unlike a three-axis robot, it has a fourth axis that moves independently. Generally speaking, SCARA robot can be considered as a four axis robot

five axes are the configuration of many industrial robots. These robots can rotate through three space cycles of X, y and Z. at the same time, they can turn around by relying on the axis on the base, and the axis with flexible hand rotation, which increases their flexibility

the six axis robot can pass through the X, y, Z axis page readers and other operating system accessories, and each axis can rotate independently. The biggest difference from the five axis robot is that there is an additional axis that can rotate freely. Nowadays, the six axis robot is the most widely used in the market

motion mode of six axis robot

six axis robot has many advantages, such as high flexibility, large load, high positioning accuracy and so on. The motion paths of the six axes will be explained in detail with FANUC robot r-2000 IB as an example

01j1 rotation (s-axis)

02j2 lower arm (l-axis)

03j3 upper arm (U-axis)

04j4 wrist rotation (R-axis)

05 wrist swing (b-axis)

06j6 wrist rotation (T-axis)

for more information about the detailed motion mode and its application field of the six axis robot, please stamp the following video

mechanical structure of the six axis robot

the above figure is the mechanical structure of the common six axis joint robot, The six servo motors drive the rotation of the six joint shafts directly through the reducer, synchronous pulley, etc. Six axis industrial robots generally have six degrees of freedom. Common six axis industrial robots include rotation (s axis), lower arm (L axis), upper arm (U axis), wrist rotation (r axis), wrist swing (b axis) and wrist rotation (t axis). Six joints are synthesized to realize the 6-DOF action of the end

six axis solid diagram

four axis solid diagram

in recent years, international robot giants have launched seven axis robots to seize the high-end new market, so what has been developed now? SGPPL is a seven axis robot of a leading enterprise that produces key components such as seals, wear and tolerance control functions suitable for all kinds of harsh working conditions

1. ABB Yumi robot

in November 2014, abb launched the latest robot product Yumi in China, which is known as the first two arm light human-machine cooperative robot. The load of each arm is 0.5kg, and the repeated positioning accuracy can reach 0.02mm. Therefore, it is particularly suitable for small parts assembly, consumer goods, toys and other fields

yumi made his debut at the Verdi opera house in Pisa, Italy. Under the guidance of Italian conductor Andrea Colombini, Yumi's first appearance showed his master style

2. KUKA LBR iiwa

KUKA LBR iiwa in November 2014, KUKA first released KUKA's first seven degree of freedom light sensitive robot lbriiwa at the robot exhibition of the China International Industry Expo

lbriiwa seven axis robot is designed based on human arm. Combined with the integrated sensor system, the light robot has programmable sensitivity and very high accuracy. All the axes of the seven axis lbriiwa are equipped with high-performance collision detection functions and integrated joint torque sensors to achieve human-machine cooperation. Its structure is made of aluminum and its weight is only 23.9 kg. There are two kinds of loads, 7 kg and 14 kg respectively, making it the first light robot with a load of more than 10 kg

3. Yaskawa SIA series robots

so far, Yaskawa Electric has released a number of seven axis robot products. Among them, SIA series robots are light agile seven axis robots. SIA series can provide a high payload and a large working range, which is very suitable for assembly, injection molding, inspection and other operations

in addition to this product, Yaskawa also released a seven axis robot welding system, which is particularly suitable for the welding of inner surfaces to achieve the best approach position. Moreover, the product can be arranged in a high density, which is easy to avoid the interference between the product and the shaft and workpiece, showing its excellent obstacle avoidance function

4. OTC seven axis industrial robot

Japan daihen group ODI launched the latest seven axis robots (FD b4s, FD b4ls, FD v6s, FD v6ls, FD v20s). Due to the rotation of the seventh axis, they can realize the welding of turning off the main motor source for more than a week

in addition, seven axis robots (fd-b4s, fd-b4ls) hide the welding cable in the robot body, so there is no need to pay attention to the interference between the robot and the welding fixture and the workpiece during the teaching operation. The degree of freedom of welding posture has been improved, which can make up for the defect that the traditional robot cannot enter the welding due to the interference with the workpiece or welding fixture

5. Na Ji bueryue oresto Mr series

as early as the end of 2007, Na Ji bueryue developed the robot Presto mr20 with seven degrees of freedom. The torque of the robot wrist is about twice that of the traditional six axis robot. The torque of the standard configuration is 20n · M. by setting the action range, it can carry up to 30 kg of objects, and the repeated positioning accuracy is 0.1 mm

by using the seven axis structure, mr20 can operate from the side of the machine tool when taking and placing workpieces on the machine tool, which improves the efficiency of preparation and maintenance in advance, and the space between the machine tools can be reduced to less than half of the traditional six axis robot

6. Xinsong seven degree of freedom robot

in 2016, Xinsong launched a series of products such as flexible seven degree of freedom cooperative robot, composite robot, double arm robot and so on

among them, the dual arm cooperative robot has the functions of rapid configuration, traction teaching, visual guidance, collision detection, etc., and has the characteristics of high load and low cost. At the same time, the real-time depth information and three-dimensional reconstruction based on the movable bionic binocular vision system can also provide users with a free and open development environment. At the same time, the integration and flexibility can realize a full set of solutions such as fast, safe, flexible, accurate and efficient screwing and positioning

conclusion

domestic seven axis robots are gradually realizing the real process of productization, and are also promoting the pace of China's robot products towards high-end industrialization. At present, whether from the perspective of products or applications, although the International seven axis industrial robots are still in the initial stage of development, major manufacturers have promoted relevant seven axis robot products in major exhibitions. It can be seen that the industry is very optimistic about its future development potential