With the continuous expansion of industrial Internet of things (iiot), more electronic equipment has been brought to factories. These devices are often exposed to harsh environment, including dust, oil, liquid and extreme temperature. At the same time, especially with the assembly of cooperative robots in the factory production line, the number and types of industrial robots are also increasing. For example, FANUC will launch a new cooperative arc welding robot in the second half of 2019, which can provide higher payload and complete six motion axes, with greater flexibility. This combination allows them to handle a wider range of components, while they operate more effectively and do not need safety protection equipment and save a lot of space.
Fanuc’s new arc Matt welding cooperative robot has six axes of motion to provide maximum flexibility. Cr-15ia welding robot can provide 15 kg payload and 1441 mm operating distance. This combination can process more parts and can also be used for newer processing, such as wire arc bonding manufacturing. Other cooperative robots, such as ABB’s small Yumi series. Single arm Yumi is a compact, lightweight cooperative robot, which can be quickly, flexibly and installed in production environment in any direction. Its seven axes imitate the human like movement, and have greater flexibility to meet the production needs of small parts assembly process, just as in the manufacturing of consumer goods and consumer electronic products.
ABB single arm yumicobot is compact in design and light in weight. It can be operated in any direction. Its seven axes imitate human like motion and are more flexible. This enables it to meet the production needs of small parts assembly process, such as in consumer goods and consumer electronics manufacturing. Industrial robots and manipulators are widely used in iiot networks. This means that the communication demand between all these devices is also increasing, highlighting the key role of connectors and cables in maintaining the connection and operation of the entire industrial network.
Therefore, communication capability is becoming as important as power supply and signal interface, which is why Ethernet technology becomes very important. Ethernet is used in different levels of industrial communication, such as communication between robot and its control cabinet, or communication between cabinet and factory automation.
Te’s industrial and automation equipment products involve robots and industrial machinery, as well as motors, servo drives and industrial communications, including internal interconnections between robots and other machines, as well as external interfaces and all connections between these equipment. Sensors also play a big role. “On the one hand, it involves power, signaling and communications, and on the other hand, it involves related interconnects, including mixed type interconnects,” said Guenter feldmeier, global leader of te industrial business unit standardization and alliance
The remote control cabinet of industrial robot is more complex than the robot itself in connection requirements. In order to ensure the rapid and safe operation of the robot, it needs a lot of communication with its control unit. “With the advent of iiot, more and more devices are using Ethernet to communicate with each other over industrial networks,” said Sylvia Feng, product line manager of Belden’s industrial data and connectivity connector, which is designed for industrial factory automation communications such as industrial Ethernet and fieldbus
Ethernet cables connect different end devices on a machine, such as a programmable logic controller (PLC), to sensors, cameras, actuators, or any other device that uses data. Since the connectors are contained in a housing and have been protected from damage, they do not need to be sealed, so their protection level is IP20.
The connectors used in industrial robots and machinery are either used for the connectors with low sealing level in the box, which only need IP20 protection, or the connectors with high sealing level, which are used in the box and harsh factory conditions, which need IP67 protection. In both cases, they can be used as power or communication connectors.
Mechanical, import, climate / chemical and electromagnetic (mice) classification systems are practical industry standards that describe the different levels of protection required in industrial environments. The clean, protected and carpeted office is the mice1 environment, the mice2 environment needs IP20 protection, and the Mice3 environment needs IP67 protection“ In mice1, you can use the cheapest, unshielded plastic connector because it doesn’t move and doesn’t need reinforcement, “Feng said. In Mice3, there may be splashing of oil and other fluids, temperature cycling, electromagnetic interference (EMI) or radio frequency interference (RFI), etc., so you may need a variety of types of protection.
Te’s feldmeier describes six overall system level requirements for industrial robots and machines that affect interconnection requirements: miniaturization, reliability, robustness, flexibility, ease of use, and ease of installation. Miniaturization is mainly suitable for interconnection systems with smaller size and increased package density, and reliability mainly involves vibration and physical shock.
Robustness covers a wide range of industrial operating temperatures from – 40 ° C to 85 ° C. “Interconnected data is particularly sensitive to EMI, so te provides 360 ° solid metal shielding on connectors for robotics and other rugged applications,” feldmeier said Flexibility means that cables must be very flexible and support field installation, and field operators must interconnect correctly, so connectors must be easy and fast to install“ 10Gb / s Ethernet is very sensitive, so it has to be shielded to maintain electrical performance, “feldmeier said“ But workers can also easily install connectors.
Feng of Belden said that the weakest link causing network failure is the end of each Ethernet cable, such as RJ45 connector. The quality of connection depends on the quality of connector and the effect of installation. To make different installations easy and consistent, Belden has developed a new datatuff industrial revconnect RJ45 connector. This new product line provides connectors, cables and accessories for CAT5e, CAT6, cat6a, UTP and STP applications, and solves the problem of installing large industrial grade connectors into limited industrial space.
Belden developed the data industry revconnect RJ45 connector, which is easy to install. The patented revconnect design was initially used in the IT field.
The company also provides single pair Ethernet cable solutions and is researching and developing solutions for the whole system. The Ethernet cable consists of four twisted pairs up to 100 meters in length. But Belden’s customers require simpler and smaller cables, which can communicate at 100MB / s or even as high as 1GB / s, while reducing the cost and weight of the cables, making the robot easier to move“ Single pair Ethernet small and simple design enables more devices to connect to the industrial network. ” Feng said.
Belden has developed bonding pair cable technology to improve the performance of Ethernet cables in high availability environments. No matter how it is installed, the twisted pairs of cables are kept together, so the impedance is always the same. The mechanical strength is increased by 60%, and the noise immunity is significantly reduced. Fischer recently added more connector sizes and material types to its rugged and durable lp360 connection system, including system applications such as connectors, cable assemblies and mobile devices for industrial applications.
HARTING’s RJ Industrial Ethernet data interface includes rjim frj45cat6a plug, which is an angle connector with IDC terminal and provides IP20 protection. It is designed for wiring data network in industrial applications, in which the data rate is up to 10Gb / s. The key factors are IP protection, plug-in reliability, robustness, anti vibration and EMC security.
Te is also developing single pair Ethernet products, feldmeier said, which it believes reflects future technology trends. This technology has been integrated into a new generation of cars and other bus systems, replacing can. “In industrial space, it provides the infrastructure for the industrial Internet of things,” he says“ According to iec63171-6, our single pair Ethernet M8 connector has additional power pins, which is a new product developed for this purpose.
Te’s m12x coding connector can carry out reliable communication in industrial equipment, easy to install, support higher bandwidth requirements up to 10Gbps, and provide IP67 / 68 environmental protection. Two te products are specially designed for industrial robots and machines. They are very small and high strength connectors, which make robots and other machines miniaturized. Te’s M12 x-code and mini I / O connector system, including connectors, cable assemblies and I / O modules, supports reliable communication up to 10Gb / s and can be used in field installation. Mini I / O has been adopted as an international standard by IEC.
Te’s Mini I / O connector has been adopted as the international standard iec61076-3-122, which provides the minimum requirements for miniaturized connectors in industrial applications. With the continuous expansion of industrial Internet of things (iiot), the demand for robots and automation equipment is increasing, and the corresponding connector and cable demand is also increasing. Connector enterprises meet the market requirements through continuous innovation and obtain considerable results.