Maintenance and maintenance of a bending machine

Before bending or maintenance, the upper die should be lowered to the lower die and shut down until the work is finished. If it is necessary to start or other operations, the mode should be selected manually and ensure safety. Its maintenance content is as follows:

1. Hydraulic oil road

1) check oil tank oil level every week, if the hydraulic system is repaired, it should be checked, and the oil level below the oil window should be added to the hydraulic oil.

2) the hydraulic oil used in this machine is ISO HM46 or MOBIL DTE25.

3) the new machine should change oil after 2000 hours work. After every 4000~6000 hours, the oil should be changed and the oil should be cleaned every time.

4) the system oil temperature should be between 35 and 60 degrees C, not more than 70 degrees C, if too high will lead to deterioration and damage of oil and accessories.

2. Filter

1) the filter should be replaced or thoroughly cleaned every time the oil is changed.

2) the machine tool has the related alarm or the oil quality not clean and so on other filter abnormality, should replace;

3) the air filter on the tank is checked and cleaned every 3 months to replace it for 1 years.

3. Hydraulic components

1) clean up the hydraulic components (base plate, valve, motor, pump, tubing, etc.) every month to prevent the dirt from entering the system, and the cleaning agent can not be used.

2) if the new machine is used for a month, check whether there is any deformation in the bending points of the tubing. If there is any abnormality, it should be replaced. After two months, the connection points of all fittings should be fastened.

Two, the fault maintenance of the bending machine

Fault 1: slider motion fault

The slider movement of a machine tool can be divided into four processes, which are starting and returning to zero, fast driving, working stroke and sliding block return.

The slider has no fast forward: the fast forward of the slider is generated by the oil returning from the lower cavity, and the negative pressure and oil suction is generated by the weight of the slide block on the upper cavity. It can also be judged whether the fault of the hydraulic system or the electrical system fails according to the power gain of the servo valve, and then the targeted solution is made.

Fault 2: the numerical control system is abnormal when the power is on

This failure is usually caused by software. Misoperation in operation or frequent abnormal shutdown can lead to file loss, so that software cant run normally. It can be judged according to the prompt of the system, and then decide whether to reload the software.

Y axis movement: dont change the slider is measured according to the electric principle diagram, in order to determine the hydraulic system failure or malfunction of the electrical system. If the servo valve is normal, that is the failure of the hydraulic system, otherwise it is the fault of the electrical system.

In order to ensure the normal use of hydraulic bending machine, besides knowing the breakdown and maintenance of hydraulic bending machine, we should know more about how to maintain the hydraulic bending machine. Next, we will introduce briefly the matters needing attention in the maintenance of hydraulic bending machine.

(1) appearance maintenance

A. machine tools are wiped to wipe clean, without oil and stains.

B. parts should be installed if there are defects.

(2) hydraulic lubrication maintenance

A. oil pump, oil cylinder, piston, filter screen, reversing valve and other cleaning and inspection, the burr should be removed, wear should be replaced.

B. oil and oil should be checked, and the oil road should be unimpeded.

(3) maintenance of the upper slider

A. checks and adjusts the parallelism between the slide block and the worktable, scraps the slider and removes the slideway burrs, and the clearance should be adjusted properly.

B. check and adjust the direct control balance valve, wipe the guide rail, wire rod, and slide surface, the parts should be changed in time if the wear is seriously worn.

(4) electrical maintenance

The A. motor and the electric box are cleaned and wiped, and the grease is replenished or replaced in time.

B. checks whether the fastening device is loosened and the line and control system should be overhauled.

We know the breakdown and maintenance of hydraulic bending machine, and also know the matters needing attention in the maintenance of hydraulic bending machine, which is much more convenient for the future use of hydraulic bending machine.

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