The Reasons for the Birth of Bending Errors in Pipe Benders

The Reasons for the Birth of Bending Errors in Pipe Benders

The support roller of the pipe bending machine swings back and forth during the bending process, and the angle between the steel pipe and the horizontal plane of the pipe bending machine is usually designed to be zero. Due to processing and manufacturing errors and various elastic deformations during the bending process, the angle cannot be the ideal zero. When the pipe bending machine moves forward, the deformation of the support roller increases, and the angle also increases accordingly. When the steel pipe bending process tilts forward or backward, it causes the bending support roller to swing back and forth during the working process.

Based on the material and product requirements and processes of the pipe bending machine, especially the thickness and perforation capacity of the pipe bending machine, select and determine the specific configuration of the CNC pipe bending machine, such as plasma power and the configuration of the strip cutting torch. Special attention should be paid: the thickness of the plasma power supply's pipe bending machine is not the effective perforation and effective pipe bending thickness, while the flame thick plate perforation technology and process, as well as the plasma effective perforation ability, are the effective pipe bending thickness and key pipe bending work of the CNC pipe bending machine.

The hardness of the mold seat and mold is also the key to whether the equipment can be used normally in the future. When the hardness of the mold seat is lower than Rockwell HRC60 and the hardness of the mold is lower than Rockwell HRC50. Place the device in an idle state, touch each module block with your hand, and there should be no shaking in the feel. Otherwise, it will be considered an unqualified product.

What material is used for the production of the pipe bending machine

In order to improve the overall performance of the pipe bending machine and fundamentally avoid adverse factors, Farley Company organized relevant technical personnel to design and manufacture a casting bed. Cast iron parts have comprehensive properties such as wear resistance, corrosion resistance, and shock absorption. After heat treatment, their stress deformation effect is much lower than that of welded components. Its shock absorption performance is particularly suitable for users who install pipe bending machines with high operating vibration in the workshop. In terms of technical design, 3D modeling, Cosmosworks real mold mechanical analysis, and structural fine-tuning are used to ensure the mechanical strength of the casting bed and a stress deformation of 0.005mm. In the heat treatment process, two annealing processes are used to eliminate internal stress and improve the crystal structure to obtain mechanical properties of castings with uniform distribution.

In recent years, CNC pipe bending machines have been widely used in industries such as automobiles, engineering machinery, locomotives, agricultural machinery, aerospace, and sheet metal machining. From the perspective of the factors that users are most concerned about, the cutting accuracy and cutting speed of CNC pipe bending machines are the most core technical indicators. Falilai Company has conducted a special study on the above situation. Under the guidance of Professor Duan Zhengcheng, academician of the Chinese Academy of Sciences and doctoral supervisor of Huagong University of Science and Technology, the various mechanisms of the pipe bending machine were finely dissected, and the basic stability of the pipe bending machine caused by slight deformation and rigid micro vibration of the bed structure components was studied to improve the accuracy and motion performance of the pipe bending machine.

The laser cutting bent pipe body of the splicing welding structure is made of steel plate welding. During the welding process, the local organizational structure of the material changes, and due to the uneven heating and force distribution of the entire component, serious material and structural stresses are generated. Although strict heat treatment processes are carried out, they cannot be completely eliminated, resulting in slight fluctuations in the linear accuracy of the bending machine during processing, assembly, and use.

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