A pipe bender is a mechanical device used to bend pipes into specific angles and shapes. The following is a detailed introduction
CNC pipe bender: It uses a digital control system to accurately control the angle, radius, length and other parameters of the pipe bend. It is easy to operate and can realize automated production by programming and inputting processing data. It is suitable for occasions with high requirements for pipe bending precision and mass production.
Hydraulic pipe bender: It uses the hydraulic system to provide power so that the pipe bending mold applies pressure to the pipe to bend it. It has the characteristics of compact structure, high working pressure, and strong bending force. It can bend thicker walled and large diameter pipes and is widely used in construction, machinery manufacturing, petrochemical and other industries.
Electric pipe bender: The transmission mechanism is driven by an electric motor to drive the pipe bending mold to rotate to achieve pipe bending. The operation is relatively simple and is suitable for the bending of small pipes. It is often used in furniture manufacturing, decoration and other fields.
Structural composition
The fuselage part: It is the basic frame of the pipe bender, usually welded or cast with steel plates, with sufficient strength and rigidity to ensure that the fuselage will not deform during the bending process, providing a stable installation foundation for other components.
Transmission system: responsible for transmitting power to the pipe bending die so that it can rotate at the set speed and angle. Common transmission methods include gear transmission, chain transmission and hydraulic transmission.
Pipe bending die: parts that directly contact the pipe and bend it, including wheel die, clamp die, guide die and mandrel. Different pipe materials, diameters and bending requirements require molds of corresponding specifications and shapes.
Hydraulic system: provides power source for hydraulic pipe bending machine, mainly composed of oil tank, oil pump, oil cylinder, valves and oil pipes. By controlling the pressure and flow of hydraulic oil, the clamping, bending and reset actions of the pipe bending die are realized.
Control system: It is the operating core of the pipe bending machine, which is used to control the entire process of pipe bending, including setting parameters such as bending angle, speed, feed amount, and monitoring the operating status of the equipment. The control system can be a CNC system, a PLC control system or a simple electrical control system.
Working principle
The working principle of the pipe bending machine is to achieve the purpose of bending by applying external force to plastically deform the pipe. Taking the hydraulic pipe bending machine as an example, its working process is as follows: first, place the pipe in the pipe bending mold, and clamp the pipe by the clamping mold. Then start the hydraulic system, the oil pump delivers hydraulic oil to the oil cylinder, and the oil cylinder pushes the pipe bending mold to rotate around a fixed point, so that the pipe is gradually bent under the action of the mold. When the set bending angle is reached, the hydraulic system reverses the oil supply, the oil cylinder drives the pipe bending mold to reset, releases the clamping mold, and takes out the bent pipe.
Application field
Power industry: used to make various pipe fittings in power towers, substations and other equipment, such as steel pipe towers for transmission lines, busbars for substations, etc.
Construction industry: in building structures, used to bend various metal pipes, such as water supply and drainage pipes, air conditioning ventilation pipes, keels for building curtain walls, etc.
Machinery manufacturing industry: widely used in the manufacture of mechanical parts, such as exhaust pipes and frame pipes for vehicles such as cars, motorcycles, and bicycles, as well as connecting pipes and transmission shafts of various mechanical equipment.
Petrochemical industry: used for laying oil and natural gas pipelines and manufacturing chemical equipment, such as the processing of elbows, tees and other pipe fittings of oil pipelines, and the inlet and outlet pipes of chemical reactors.
Operation precautions
Safe operation: Operators must undergo professional training and be familiar with the performance and operating procedures of the pipe bending machine. During operation, protective equipment such as safety helmets and protective gloves should be worn. It is strictly forbidden to clean, repair or adjust the mold while the equipment is running to prevent accidents.
Mold installation and adjustment: When installing the mold, ensure that the mold is aligned with the center axis of the pipe bending machine, and tighten the mold fixing bolts according to the specified torque. When adjusting the mold gap, it is necessary to make precise adjustments according to the diameter and wall thickness of the pipe to avoid deformation or damage of the pipe due to excessive tightness or looseness of the mold.
Pipe preparation: The pipe should be pre-treated before bending, such as cutting, chamfering, cleaning, etc. The pipe port after cutting should be flat, without burrs and deformation to ensure good contact with the mold. At the same time, it is necessary to select appropriate pipe materials and specifications according to the bending requirements to avoid affecting the bending effect due to pipe quality problems.
Equipment maintenance and care: Regularly maintain the pipe bending machine and check whether the various components of the equipment are operating normally, such as the transmission system, hydraulic system, control system, etc. Clean the dust and oil on the surface of the equipment in time, add lubricating oil, and replace worn parts to extend the service life of the equipment.