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Application of 3D cutting in the plate industry
1 Overview
Our company is mainly engaged in the design and manufacture of cutting and welding automation equipment. In the field of thermal cutting, we develop and produce automated equipment for flame, plasma and laser cutting. The products are mainly used in marine offshore manufacturing, bridge steel structures, engineering machinery, pressure vessels and petrochemical industries.
In the early days, we used multi-axis CNC control to apply the hot cutting process to three-dimensional cutting, such as three-dimensional cutting of pipe space and three-dimensional cutting of H-beam. In recent years, with the development of industrial robots, the production line of PRG ball flat steel robot cutting production line and PKG steel robot cutting with robot as the execution body has been developed.
Figure 1 PRG automatic production line
2. Current 3D cutting domestic application
With the rapid growth of China's economy in recent years, the application of three-dimensional cutting has begun to develop rapidly. Early and wider three-dimensional cutting applications should belong to the automotive industry. Due to the thinness and large batch size of the sheet metal, the laser three-dimensional cutting application is relatively wide and the application is relatively mature.
In the three-dimensional cutting application of medium and heavy plates, the market development is relatively slow. The main reason is that the three-dimensional cutting of the medium and heavy plates is large, the parts and tooling design are complicated, and the deformation amount is difficult to control. Many times it is processed in small batches and multiple batches. Therefore, more often, offline programming and high-precision measurement tracking are needed to satisfy this situation, so the application is relatively slow.
Figure 2 Marine ball flat steel
3. Application of 3D cutting in the shipbuilding industry
In the shipbuilding process, a large number of profiles as hull keels need to be cut. Due to the irregular shape of the profiles, most shipyards use manual cutting methods, which have the disadvantages of high labor intensity, low efficiency and poor cutting quality. To this end, our company has developed a marine PRG ball flat steel robot cutting production line to solve problems such as continuous, batch, efficient processing and labor costs.
The PRG ball flat steel robot cutting line is divided into automatic feeding, automatic material clamping, laser scanning detection and three-dimensional cutting of the profile surface of the robot. The main actuator is a 6-joint robot, and the PRG automatic production line is shown in Figure 1.