Laser cutting includes plane cutting and three-dimensional cutting. For some high-strength steel structural components with complex contour, three-dimensional laser cutting is a very effective processing method from both technical and economic perspectives.
In the automotive industry, laser technology is mainly used for body welding, welding and parts welding. Among them, laser tailor welding is to select steel plates of different specifications according to different design and performance requirements of the car body in the design and manufacturing of the car body, and complete the manufacturing of a certain part of the car body through laser cutting and assembly technology, such as front windshield frame, door inner plate, car body bottom plate, middle column, etc.
In the traditional trial production stage, the trimming and hole cutting of stamping parts can only be completed by hand. Generally, it needs at least two to three processes, and the processing time is long. Moreover, manual processing can not ensure the repeated accuracy of cutting parts, so it is difficult to meet the objective requirements of shorter and shorter vehicle development cycle. The application of three-dimensional laser cutting machine enables the machine tool to automatically “adapt” to the error caused by the elastic deformation of stamping parts, so that the three-dimensional laser cutting technology has truly become a new precision and flexible processing means of automobile body processing.
Three dimensional optical fiber laser cutting machine is an advanced laser cutting equipment, which is composed of special optical fiber laser cutting head, high-precision capacitive tracking system, optical fiber laser and industrial robot system for multi angle and multi-directional flexible cutting of metal plates with different thickness. Using the flexible and fast action performance of the industrial robot, according to the size of the workpiece cut and processed by the user, the robot is installed in front or upside down, and the teaching programming or off-line programming is carried out for different products and different tracks, and the irregular workpiece is cut in three dimensions by the optical fiber laser cutting head; The laser is transmitted to the cutting head by optical fiber (the optical fiber laser cutting head is equipped with special optical fiber servo device and optical path transmission device), and then focused by the focusing system, which can cut a variety of three-dimensional metal plates in multiple directions.
Three dimensional laser cutting uses the flexible and fast action performance of industrial robot. According to the size of workpiece cut and processed by users, you can choose to install the robot in front or upside down, and carry out teaching programming or off-line programming for different products and different trajectories. The sixth axis of the robot is loaded with optical fiber laser cutting head to cut irregular workpiece in three dimensions; The optical fiber laser cutting head is equipped with a follow-up device and an optical path transmission device. The optical fiber is used to transmit the laser to the cutting head, and then the focusing system is used to focus. For plates with different thickness, multiple sets of focusing systems are developed to cut a variety of three-dimensional metal plates in multiple directions to meet the needs of customers.
The application of three-dimensional laser cutting machine reduces the mold investment cost, greatly shortens the development cycle of automobile manufacturers and parts suppliers, and improves the processing efficiency and precision of cutting workpieces. It is a powerful tool for automobile manufacturers and parts suppliers to improve their competitiveness.
One of the outstanding advantages of 3D laser processing is that it greatly reduces the production cost of products. Assuming that a car needs 10 body panels, if the conventional punching die is used for production, the cost of the required die is very high, and the man-day workload of all tooling preparation, design and commissioning takes a long time. If three-dimensional laser cutting equipment is adopted, the total cost will be greatly reduced and the product development cycle time will be shortened.
The three-dimensional laser cutting machine can complete the tasks that can be completed by multiple processes such as traditional plasma manual cutting, trimming die, punching die, six axis robot three-dimensional cutting machine and wire cutting, and truly realize the flexible processing with intelligence, multi-function, high efficiency and low energy consumption. The innovation of tools brings the improvement of production efficiency and product quality. Three dimensional laser cutting machine can not only drive the development of automobile industry, but also bring the gospel of special-shaped material cutting industry.
It can be seen that in the field of automobile manufacturing, the use of laser processing technology makes automobile manufacturing with high precision, good quality, easy to realize automation, flexibility and intelligence; More importantly, it can improve the safety and quality of cars, clean production, reduce loss and pollution, reduce costs, and finally give concessions to ordinary consumers.