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Solutions to the failure of CNC bending machine and its price influencing factors

by:WORLD     2022-08-24

I don’t know if you have encountered any failures when operating the CNC bending machine? If there is a failure, how do you solve it? If you want to buy one, what is the price of it? That affects the CNC bending machine. What are the factors of bending machine? Below, the world press machine will give you a brief introduction.

The solution to the failure of the CNC bending machine:

(1): The reversing valve cannot be reversed or the reversing action is slow, which is generally caused by poor lubrication, stuck or damaged springs, oil or impurities stuck on the sliding part, etc. In this regard, you should first check whether the lubricator works normally; whether the viscosity of the lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring and reversing valve.

(2): After the reversing valve is used for a long time, the valve core sealing ring is prone to wear and the valve stem and valve seat are damaged, resulting in leakage in the valve, slow movement of the valve or failure of normal reversing. At this time, the sealing ring, valve stem and valve seat should be replaced, or the reversing valve should be replaced.

(3): If the inlet and exhaust holes of the electromagnetic pilot valve are blocked by sludge and other debris, the sealing is not strict, the movable iron core is stuck, and the circuit is faulty, etc., all of which may cause the reversing valve to fail to change direction normally. For the first three cases, the sludge and impurities on the pilot valve and the movable iron core should be cleaned. Circuit faults are generally divided into two categories: control circuit faults and electromagnetic coil faults.

How is the price of CNC bending machine affected?

The price of CNC bending machine is about tens of thousands of yuan each, the cheap one is 10000 or 20000 yuan, and the expensive one is 120000 yuan. The price of CNC bending machine is affected by many aspects, such as brand, category, specification, market, etc. The key is to learn how to choose. Workpiece The first important thing to consider is the part you are going to produce, the point is to buy a machine that can do the job with a short table and a small tonnage.

Careful consideration of material grades and large machining thicknesses and lengths. If most of the work is mild steel with a thickness of 16 gauge and a very large length of 10 feet, then the free bending force need not be greater than 50 tons. However, if you are doing a lot of bottomed die forming, maybe a 150-ton machine should be considered.

Well, assuming the thicker material is 1/4 inch, 165 tons for a 10 foot free bend and at least 600 tons for a bottomed die bend. If the majority of workpieces are 5 feet or less, the tonnage is almost halved, greatly reducing the acquisition cost. Part length is very important in sizing new machines. Deflection Under the same load, the deflection of the table and slider of the 10-foot machine is 4 times that of the 5-foot machine.

That said, shorter machines require less shim adjustment to produce acceptable parts. Reduced shim adjustment in turn reduces setup time. Material grade is also a key factor. Compared to mild steel, stainless steel typically requires around 50% more load, while most grades of soft aluminium require around 50% less.

You can always get a machine tonnage table from the press brake manufacturer that shows an estimate of the tonnage required per foot of length for different thicknesses and materials. When the bending radius of the part adopts free bending, the bending radius is 0.156 times the opening distance of the die.

The above is the relevant introduction, I believe that everyone has a certain understanding of the bending machine.

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