Views: 2551 Author: Site Editor Publish Time: 2023-06-13 Origin: Site
Normally, several types of brakes, like mechanical, pneumatic, hydraulic, and servo-electric are available in our company. As a typical product, hydraulic press brake can bend various plates. This hydraulic bending machine can satisfy many workpieces’ requirements by changing molds. The structure mainly includes the bracket, the workbench and the clamping plate. Workbench is on the bracket, and consists of base and the clamp. The base is connected to the clamp plate through a hinge, and the base is composed of shell, coil and plate. When using hydraulic press brake, coil is powered on by a conductor. After powering on, the clamp generates bending force, so as to realize the bending of steel plates.
Adopting the electromagnetic clamping, the hydraulic bending machine can process a variety of workpieces.
Hydraulic press brake can be applied to manufacture boiler tank, air conditioning channels, sheet metal cover, cone-shaped wokpieces, etc. It is widely used in metal fabrication, marine and ship building, pressure vassals and wind mills.
The hydraulic bending machine is versatile in applications. With high accuracy, it is easy to operate and maintain.
Using a convenient multi-switch control panel or a 3-position fully guarded foot switch, the hydraulic press brake is simple and flexible to control.
Hydraulic press brake features long and full tonnage stroke. Length is adjustable and spped is selectable. Besides, you can adjust the height for short stroke. Two-speed is standard and three-speed with infinitely adjustable low speed is optional. This option prevents sudden malfunction during operations of hydraulic bending machine.
The manifold of hydraulic press brake assembly saves space and makes it easy to replace many components. The convenient work height makes operation easier.
Piston of the hydraulic bending machine stops at the point of reference during every stroke. Main control cabinet enclosures of hydraulic press brake are mounted on the side frame. They are contain magnetic and non-reversing motor, starter and 110/120v control circuit.
The hydraulic press brake adopts all steel welded structure, thus having enough strength and good rigidity.
Hydraulic bending machine uses hydraulic transmission. The cylinders of machine tools at both ends are placed on the slide block.
Sliding blocks and torsion shafts endow the hydraulic press brake with well synchronization movements during working.
Using mechanical structure, the hydraulic bending machine is stable and reliable.
The stroke motor of hydraulic press brake is mechanically adjustable, combined with manual fine tuning. The data is showed by counter.
The hydraulic bending machine is of the wedge deflection compensation mechanism to ensure high precision of bending.
The hydraulic press brake is justified by ISO9001:2008 quality system. Every processing step should be under strict inspection to ensure that the percent of pass is up to 98%, including finish machining, assembly, paint, to factory, etc.
Our company has a thorough series of testing equipments for hydraulic bending machines, 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 hydraulic press brake is one year.
1. Sliding part
Adopting hydraulic transmission, the sliding part of hydraulic press brake is made up of sliding block, oil cylinder and the mechanically stop fine-tuning. The oil cylinders of hydraulic bending machine at both ends are fixed on the frame, and the mechanical block is controlled by the CNC system to adjust value.
2. Operating platform
Manipulated by button box, the operating platform of hydraulic press brake makes the motor move back and forth. The moving distance is controlled by CNC system, and the smallest reading is 0.01 mm (front and back positions are set up with travel limit switch).
The synchronizing system of hydraulic bending machine is made up of torsion shaft, swing arm and joint bearings. This precise machine is stable in structure and performance. Its stop dog is adjusted by motor. The number is controlled by CNC system.
Block material of hydraulic press brake uses motor drive, and the size of block is controlled by numerical control system.
Strictly abide by the hydraulic bending machine safety operation procedures.
Before starting hydraulic press brake, the motor, switch, wiring and grounding shall be carefully checked. Check the equipment control station and the button so that they are in the correct position.
Check the contact ratio of upper and lower die and the consistence. Check whether the positioning device of hydraulic bending machine meets requirements.
When the upper skateboard and the location shaft of hydraulic press brake are not at the original point,, reset them into original state.
Keep the machine running for minutes after launching and let the upper sliding plate remain moving for 2 or 3 rounds. If any abnormal noise or multifunction arises, stop running the machine and solve multifunction problems.
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.
Sheet materials should be compacted enough so that workers are prevented from injury because of warped sheets.
When the hydraulic bending machine is working, people are not allowed to stand at the back of the machine.
It is strictly prohibited to crushing plate only at one end.
If workpieces or molds are not rightly placed, stop running the hydraulic press and replace them in the right positions. Besides, it is forbidden to touch and replace the workpieces or molds when the machine is in opeation.
To avoid damage to the machine, no sheet materials beyond the machine's bending capacity are allowed to be processed, such as ultra-thick iron sheets, quenched steel sheets, grade alloy steel, square steel, etc.
Check the contact ratio of the upper and lower molds.
If mulfunction occurs, immediately stop the hydraulic press brake and check the probloem and timely eliminate the faults.
Before shutting down, a wooden block should be placed on the lower die at the bottom of both sides of the cylinder, in order to slide down the upper die to this block.
Exit the program control system first, and then cut off power supply.
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:
1. Hydraulic Oil Line
①The oil level should be checked every week. If oil level is below oil window, you should add hydraulic oil according to requirements.
②Before changing oil for hydraulic bending machine, the oil tank should be cleaned.
③Oil 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.
④Changcheng brand L-HM46 hydraulic oil is available in this hydraulic press brake.
⑤In 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.
2. Filter
①Once you change oil, the filter of hydraulic press brake should be changed or cleaned thoroughly.
②When the hydraulic bending machine rings alarm, the filter should be changed.
③Air filter on the oil tank should be checked and cleaned every 3 months. And it should be replaced every 1 year.
3. Hydraulic components
① Monthly clean hydraulic components (base plate, valve, motor, pump, tubing, etc.) of hydraulic press brake to prevent dirt from entering the system, and the cleaner cannot be used.
②After 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 hydraulic press brake should be shut down, then the system is without pressure.
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