The hottest Omron automobile safety manufacturing

Omron automotive safety manufacturing solutions

Omron Automation (China) Co., Ltd. (hereinafter referred to as "Omron") is a multinational company leading industrial automation products and the application of advanced technology. As part of Omron's global business, it has become a leader in the field of automation. Through the "sensing and control" technology, using years of experience and deep understanding of the production site, Omron realizes the production efficiency and safety of the manufacturing site at the same time. Quality and safety are currently advocated by OMRON in the automotive industry. This paper focuses on safety solutions

in the past, the improvement of the production efficiency of machines and devices and the guarantee of safety were contradictory. Now Omron can provide customers with the production efficiency and safety of the manufacturing site at the same time based on its core competitive "sensing and control" technology and its own production safety experience

at the production site, when the operator enters the dangerous field or the machine malfunctions due to sensor failure, the safety control system will automatically detect the danger and stop the operation of the device to ensure the safety of operators and equipment. It is very necessary to build such a "safety control system". In order to realize such safety control, safety must be considered at the design stage of the device

in automobile production enterprises, especially in stamping, welding and assembly workshops with a high degree of automation, the emergence of a large number of welding robots and assembly manipulators has created many dangerous areas that need safety protection. Therefore, safety sensors, such as laser area protection scanners, safety light curtains, safety plastic granulators, are also major energy consumers in China. The use of door locks, safety carpets and emergency stop switches has been very common

safety products

Omron has many safety products, including safety input products, safety control products, etc. For example, a22e emergency stop switch can be used to stop the equipment when the equipment is abnormal or workers are in danger. F3sj safety light curtain can protect the work entrance that is frequently accessed. D9m safety carpet can detect the presence of personnel in the area to ensure the safety in the dangerous area. Os3101 laser area scanning sensor can detect the presence of personnel and give a warning when approaching the dangerous area

the traditional control system still stays in the state of the non safety bus control system of "general relay" or "ordinary PLC", which greatly limits the safety of the production process control system. If these devices are connected to the bus system with high requirements for safety level, there will be relatively large potential safety hazards, which is a non safe control state. Based on this situation, Omron has developed a safety network system DeviceNet safety (see Figure 1), which greatly improves the safety of the control system

Figure 1 safety network system

using DeviceNet safety safety safety control network can obtain the logic safety circuit of certification software, so as to miniaturize the interlocking relay panel and save space. DeviceNet safety safety control network can also flexibly handle program changes and device model changes according to user requirements, so as to shorten the development time. In addition, Omron's safety relay also has a built-in forced guide mechanism, which can prevent the danger caused by the welding of contacts. For example, g7sa safety relay unit/controller can realize the composition and control of safety circuit, in addition to Evonik, and the establishment of safety control network

practical application of safety products

in the welding workshop with a high degree of automation, the emergence of a large number of welding robots and assembly robots has created many dangerous areas that need safety protection. In these places, the application of safety products is very important. Around these welding robots, safety protection devices such as mechanical safety fence, safety door lock, laser area protection scanner and emergency stop switch need to be installed, and these safety protection devices can be connected to the safety bus system through the "safety bus interface". (see Figure 2)

Figure 2 robot safety protection

the car body welding production line in automobile production includes the main control panel, welding workbench jig A and jig B, worker's console and other parts. Among them, the main OP panel controls the start and stop of the main equipment, and the sub OP is the local operation panel. The welding process of the car body is as follows: the welding robot hands weld the car body entering the workbench A and B. when the welding of a is completed, the car body automatically exits the welding workbench A and waits for the next car body to enter the welding. At the same time, the robot hands turn to workbench B and weld the car body entering the workbench. After the welding, the car body exits workbench B and waits for the next entry, At the same time, the robot hand returns to a to weld the car body in place... So it starts again and again. In this process, the safety emergency stop switch can stop the operation of the equipment immediately in case of abnormal conditions. The safety light curtain installed between the welding workbench and the worker's console can prevent the human body from entering during the operation of the manipulator. The laser area scanner can also be installed in the area near the working radius of the manipulator to prevent the human body from entering the dangerous area

Figure 3 Schematic diagram of car body welding production line in automobile production

in the working area of the full-automatic stamping machine, not only the contact between the machine and people may cause injury, but also the rotation action of the robot arm may cause high risk. Generally, we will recommend installing mechanical safety fences, safety locks, safety gratings with shielded sensors at safety entrances and exits, emergency stop switches and other safety sensors. These safety protection devices can also be connected to the safety bus system to form a safety control network system

conclusion

with the continuous improvement of production capacity, automobile manufacturers have higher and higher requirements for equipment automation, and machines and equipment are more and more complex and faster. Therefore, manufacturers have higher and higher requirements for the safety of these machines

Omron can not only provide safety parts using the latest "sensing and control" technology, but also provide "safety" overall solutions including ensuring the safety of the manufacturing site, minimizing labor disasters and improving the efficiency of machine device design through consulting services aimed at "optimizing the safety design of machine devices". Omron will maintain the company philosophy of "customer first" and provide more reliable, cost-effective and advanced overall safety solutions for the majority of users in the domestic automotive manufacturing field. (end)