Description
Compared with common double-cylinder hydraulic bending machine, this three cylinders hydraulic press brake can obtain higher bending accuracy. On the basis of original two cylinders bending machine, an auxiliary cylinder is added in the middle of the slider, which is better to reduce the deformation of slide block for a long time use. This hydraulic bending machine effectively improves the machining precision of the workpiece, and it is a new generation equipment of two cylinders bending machine. This three cylinders hydraulic press brake shows superior performance in bending process.
Features
The slider portion of this hydraulic bending machine uses the hydraulic transmission, and it is made up of the slide block, cylinder and mechanical block trimming structure. The other two cylinders are fixed on the frame. Through the hydraulic piston, the sliding block can move up and down. The CNC system will adjust the mechanical block, the mechanical stopper and the bending angle. The stopper mechanism of this three cylinders hydraulic press brake uses a motor drive.
Advantages
- The hydraulic bending machine is in whole steel welding structure, having a solid rack and good rigidity, and it can reduce the vibration.
- The structure of the lathe is made of frame, working platform, slider, main cylinder and back gauge. The perfect design and manufacturing process can effectively ensure precision of the three cylinders hydraulic press brake.
- The bending design is of dynamic type, which is easy, safe and stable to operate.
- The main parts of this hydraulic bending machine are frame, slider and working table. They are all produced by large boring machine and milling machine which are imported from Russian. Those ensure the main machine can meet the various geometric accuracy requirements.
- The guide rail of three cylinders hydraulic press brake adopts advanced self-lubricating materials, and it does not need regular lubrication maintenance.
- The slide block of this hydraulic bending machine can delay the pressure at the below stop, ensuring the precision of the work piece.
- It is stable in working because oil cylinders are moved synchronously with the shafts.
- The three cylinders hydraulic press brake is justified by ISO9001:2008 quality system. From finish machining, assembly, paint, to factory, every step should be under strict inspection to ensure that the percent of pass is up to 98%.
- Our company has complete testing equipment for this hydraulic bending machine, such as insulation resistance meter, hardness tester, grounding resistance tester, compression tester, sound level meter, digital temperature meter, level meter, etc.
- Our company guarantees permanent technical advisory services. The warranty period for three cylinders hydraulic press brake is one year.
Components
- Sliding Part
Adopting hydraulic transmission, the sliding part of this hydraulic bending machine is made up of sliding block, oil cylinder and mechanical stop fine-tuning. The oil cylinders at both ends are fixed on the frame, and mechanical block is controlled by the CNC system to adjust value.
- Operating Platform
Manipulated by button box, the operating platform of three cylinders hydraulic press brake makes the motor move back and forth. And the moving distance is controlled by CNC system, and the smallest reading is 0.01 mm (Front and back position both have travel limit switch).
- Synchronizing System
The synchronizing system of this hydraulic bending machine is made up of torsion shaft, swing arm and joint bearings. It is stable in structure, stable in performance and high in precision. The machine stop dog is adjusted by motor. The number is controlled by CNC system.
- Block Material Structure
Block gauge of three cylinders hydraulic press brake are driven by motors.
Performance
- The hydraulic bending machine shows high reliability because it adopts hydraulic system, stepless voltage regulation and high quality seal ring.
- Using compensation mechanism, the three cylinders hydraulic press brake improves the working accuracy of components.
- Electrical adjustment as well as manual adjustment is utilized in adjusting slide stroke. Besides, related figures are shown to make operation easier.
- Inching and single/continuous operation on the hydraulic bending machine are conducted according to regulated rules. Additionally, time needed for reversing and pressure keeping is controlled by the time relay.
- The three cylinders hydraulic press brake is equipped with a safety barrier, which improves the operation security.
Attention
- Strictly abide by the hydraulic bending machine safety operation procedures.
- Before starting three cylinders hydraulic press brake, the motor, switch, wiring and grounding shall be carefully checked whether it is normal and strong enough. Check the equipment control station and the button whether it is in the correct position.
- Check if the upper and lower dies are contacted well and strong enough. Check whether the positioning devices of hydraulic bending machine are qualified for bending work.
- When the upper skateboard and the orientation axis of three cylinders hydraulic press brake are not at the origin, adjust them back to the origin.
- Run the machine 1-2 minutes after launching, and move the skateboard with 2~3 strokes. If there is abnormal sound or defect in hydraulic bending machine, the three cylinders hydraulic press brake should immediately stop, and be troubleshooted. Only after these problems are solved, can the machine be out into normal work.
- One peroson is specially needed to command the whole operation so that operators and material feeding workers can cooperate well. Only after assuring all the workers are in safety area, can this commander deliver the message that bending is beginning.
- Before bending, sheet materials must be compacted in case that they warp and bring injury to people around.
- When the hydraulic bending machine is working, people are not allowed to stand at the back.
- Do not crush the plate alone at one end.
- If it is found that the bending molds are wrong when the three cylinder hydraulic press brake is working, you should stop this machine immediately and change the molds into right ones. Attention, mold changing can not be manually done in case of injury.
- It cannot be used to process ultra thick sheet, quenched steel, high alloy steel, square steel and other materials beyond bending capacity of this machine. Or, machine may be broken and operators get injured.
- Check the contact ratio of the upper and lower molds.
- If any malfunction occurs, immediately stop the three cylinders hydraulic press brake and eliminate the faults.
- Before shutting down, the upper die should be declined to a wooden block which is placed on the the lower die.
- Switch off the program control system first, and then cut off power supply.
Maintenance and Repair
Before maintainance or cleaning, the hydraulic bending machine should be shut down, and the upper die should be aligned with the lower die. If you want to open the hydraulic press brake or conduct other operation, this machine should be changed into the manual mode to ensure safety. Details are as follows:
- Hydraulic Oil Line
1.The oil level should be checked every week. If oil level is below oil window, you should add hydraulic oil according to requirements.
2. Before changing oil for hydraulic bending machine, the oil tank should be cleaned.
3. Oil temperature should be kept between 35℃ and 60℃, and not over 70℃. If the oil temperature is higher, the oil quality and auxiliaries will be damaged.
4. Changcheng brand L-HM46 hydraulic oil is available in this hydraulic press brake.
5. In a new hydraulic bending machine, the oil should be changed after working 2000 hours. In future days, the oil should be changed after working 4000-6000 hours. The oil tank should be cleaned when changing the oil.
- Filter
1. Once you change oil, the filter of three cylinder hydraulic press brake should be changed or cleaned thoroughly.
2. When the hydraulic bending machine rings alarm, the filter should be changed.
3. Air filter on the oil tank should be checked and cleaned every 3 months. And it should be replaced every 1 year.
- Hydraulic Components
1. Monthly clean hydraulic components (base plate, valve, motor, pump, tubing, etc.) of three cylinders hydraulic press brake to prevent dirt from entering the system, and the cleaner cannot be used.
2. After using a new hydraulic bending machine for one month, check the oil pipe bend whether there is deformation, it must be changed if there is any abnormal. After one more month, tighten the joint of all accessories. Doing this job, the three cylinders hydraulic press brake should be shut down, then the system is without pressure.
Packaging, Transportation and Payment
The hydraulic bending machines are delivered by shipping. Payment is though T/T.
Founded on Oct. 25th, 2004, HB Machinery Co., Ltd. is a professional manufacturer and provider of shear machines, bending machines and rolling machines. Our company is a key enterprise among national engineering industry. With the registered capital of 3,980,000 RMB and rich experience, Nantong Liwang manufactures various brand products, including three cylinders hydraulic press brakes.
