What is a pipe bucking machine?

Bending machine principle introduction

The pipe bending machine is a machine used to bend metal pipes into the desired shape. It bends metal pipes into various shapes through electricity, hydraulic pressure, air pressure and other principles. The basic principle is to apply force on the metal pipe, and use the bending die when the pipe is elastically deformed to make the pipe plastically deformed, so as to achieve the purpose of bending the pipe. The main structure of the pipe bending machine includes the pipe bending machine frame, bending machine head, hydraulic system, electrical control and other parts. During operation, put the metal pipe into the bending machine head, and manually or automatically rotate the bending machine head to the corresponding angle by operating the control button, and use hydraulic or air pressure to act on the mold on the workbench to bend the metal pipe. The bending machine head can achieve three-dimensional bending, which can make the metal pipe form various complex shapes in space.

Main types of pipe bending machines

Pipe bucking machines can be roughly divided into CNC pipe bending machines, hydraulic pipe bending machines and fully automatic pipe bending machines. It is mainly used for pipeline laying and repair in aerospace, power construction, road and railway construction, boilers, bridges, ships, furniture, etc. It has the advantages of multiple functions, reasonable structure and simple operation.

1. Hydraulic pipe bender: The working principle of the hydraulic pipe bender is to decompose the bending action, including hydraulic drive, clamping, unclamping, bending, bending, auxiliary feeding, auxiliary retreating, core feeding, core retreating and other actions. In the production of elbows, the action of the hydraulic pipe bender is automatic, but the feeding and three-position rotation angle can only be determined by fixed length and angle positioning, which is generally done manually.

Hydraulic pipe bender usually consists of oil tank, pump station, circuit system and pipe bending device. When pipe bending is required, first fix the metal pipe on the pipe bending device and adjust the parameters such as the bending angle and radius. Then start the motor to drive the pump station, and the pump station starts to inject liquid pressure oil into the oil cylinder. By controlling the pressure and flow of the hydraulic system, the shape and angle of the bent pipe can be accurately controlled to achieve high-precision processing.

2. CNC pipe bending machine: CNC pipe bucking machine uses servo motor instead of hydraulic drive, which can control the feeding and retreating of the trolley, the rotation of the inclination angle and the bending of the elbow, the auxiliary feeding and retreating, the lifting and lowering of the machine head, etc. Although the clamping annealing, core feeding and core pushing are still completed by hydraulic drive, the CNC pipe bending machine provides higher precision and efficiency.

The CNC pipe bending machine mainly uses a computer digital control system to accurately control the bending action of the pipe. It first inputs the required bending parameters, such as bending angle, radius, etc. into the CNC system. Then, the system controls the motor, hydraulic system and other driving components according to these parameters, so that the pipe bending mold bends the pipe according to the set trajectory and requirements. During the bending process, various sensors will monitor and feedback information in real time to ensure the accuracy and quality of the bending.

3. Fully automatic pipe bending machine: The fully automatic pipe bending machine is an automated equipment that integrates electromechanical hydraulic systems. The automatic pipe bending machine control system composed of a servo motor and its motion control unit PLC and a touch screen can process different workpieces efficiently.