Welding robots can replace humans in working in dangerous and harmful harsh environments, but at the same time, they bring another potential danger, namely robot injury accidents. To this end, when the welding robot is in operation online, no one should enter the area where ****** is within the safe range of its movement, and there should be no interference within the safe range of its movement. This is the most important principle for the safety management of the welding robot. In addition to the general industrial safety regulations, attention should also be paid to the particularity of welding robots and corresponding reliable countermeasures should be adopted. For example, the security measures we are using now:
1) Install safety guardrails for welding robots and their surrounding equipment to prevent people from entering dangerous areas and causing accidental injuries.
2) A plug-and-pull type electrical contact switch is installed on the safety door at the entrance of the safety guardrail. This switch is connected to the safety circuit of the welding robot. Once the safety door is opened, the robot controller will cut off the driving power supply of the robot, and the robot will immediately stop moving.
3) Install multiple emergency stop switches at the location closest to the welding robot's workstation. In case of an emergency or dangerous situation, the staff can press the emergency stop button nearby to halt the robot's movement.
4) When demonstrating the operation, reduce the movement speed of the welding robot and have the demonstration conducted by personnel who have received professional technical operation training.
5) The safety circuit of the welding robot is integrated with that of the production line. When an emergency occurs on the production line, production workers can press the emergency stop switch at any workstation on the line to stop the robot's movement.
The control device of the welding robot
Although the welding robot itself has a very complete control system, each welding robot, as an independent automated equipment system, is always just a subordinate workstation in a production line or a production system. It must be remotely controlled by corresponding external control devices. To meet the requirements of synchronous and orderly production among various automated equipment on the automated assembly line.
The commonly used related control devices for welding robots include programmable logic controllers and online monitoring devices.
The programmable controller coordinates and cooperates the work of various automated equipment on the production line, including welding robots, thereby orderly realizing the automation of the production process.
The online monitoring device serves as a human-machine interface between the operator and the production system. It collects real-time data from the production system and can conditionally modify the production data in real time, thereby achieving the purpose of real-time monitoring of the on-site conditions of the production line and remote real-time control of the production line operation. The use of online monitoring devices enables convenient issuance of operation instructions, starting or stopping all automated equipment including welding robots, and real-time understanding of the status of the production system.