Teach you to correctly control the voltage and current of the wire cutting machine
2024/01/25
Teach you to correctly control the voltage and current of the wire cutting machine
How to correctly control the voltage and current of the wire cutting machine in daily use?
1.The voltage of the fast-moving wire and medium-moving wire cutting machine should be controlled between 70-90V during processing.
2.The processing current depends on the thickness of the workpiece to be processed to determine. Generally, if the thickness of the workpiece to be cut is below 70, the current can be controlled at 2-3A.
3.As for the current jumping to 4-5A all at once, it may be that your walking speed is too fast and the short circuit is caused.
EDM wire cutting is more troublesome, and it is necessary to adjust the pulse interval, pulse width, pulse... the value of the change is too large.
For the same type of wire cutting machine, the practices of manufacturers are different and the performance is different.The cutting efficiency is also different.
The no-load voltage is the voltage that turns on the high frequency but does not process the workpiece.As the thickness of the workpiece changes during processing, the no-load voltage will also change. During processing, the voltage will be lower than the no-load voltage, which is the so-called load.The thickness is different, and the load is different.
There is a voltage regulator inside the EDM wire cutting control box and an external rotary switch. The voltage can be adjusted by rotating the switch back and forth (it is strictly forbidden to adjust the voltage and change the pulse width, pulse spacing, and pulse parameters during cutting.There will be a risk of broken wires and destruction of circuit components).
The above is the correct way to control the voltage and current of the wire cutting machine. I hope it will be of help to everyone.
The concept and principle of medium wire cutting machine
2024/01/25
Medium wire walking belongs to the category of reciprocating high-speed wire walking EDM wire cutting machine tools. It realizes multiple cutting functions on high-speed reciprocating wire walking EDM wire cutting machines, which are commonly known as “medium wire cutting”.Medium wire walking technology points out here that the so-called “medium wire walking” does not mean that the wire walking speed is between high speed and low speed, but a composite wire walking machine tool, that is, the principle of wire walking is to use high-speed (8-12m/s) wire walking during roughing, and low-speed (1-3m/s) wire walking during finishing, so that the work is relatively stable, the jitter is small, and the material deformation and molybdenum wire loss are reduced through multiple cuts. The error caused by the loss of molybdenum wire, the processing quality is also relatively improved, and the processing quality can be between the high-speed wire walking machine and the low-speed wire walking machine.Therefore, it can be said that what the user refers to as “medium wire walking” is actually a reciprocating wire walking EDM wire cutting machine that draws on the processing technology of some low-speed wire walking machines, and realizes stripe-free cutting and multiple cutting.The medium wire-walking technology has been derived from practice. In multiple cuts, the first cutting task is mainly high-speed and stable cutting. High-peak current and longer pulse width standards can be selected for high-current cutting to obtain a higher cutting speed.The task of the second cutting is to refine and ensure the dimensional accuracy of the processing.Medium specifications can be selected so that the roughness Ra after the second cutting is between 1.4 and 1.7µm. In order to achieve the purpose of finishing, the low-speed wire walking method is usually used. The wire walking speed is 1 to 3m/s, and the tracking feed speed is limited to a certain range to eliminate round-trip cutting stripes and obtain the required machining dimensional accuracy.
The task of the third, fourth or more cuts (currently, the wire-walking control software can achieve up to seven cuts) is polishing and polishing, and the minimum pulse width (currently the minimum can be divided into 1µs) can be used for polishing, and the peak current varies with the processing surface quality requirements. In fact, the finishing process is a kind of electric spark grinding, the processing volume is very small, and the size of the workpiece will not be changed.The wire-walking method is like the second cutting, and the low-speed wire-walking speed limit can be used to feed.In the processing process of medium-wire technology, multiple cuts also need to pay attention to deformation treatment, because when the workpiece is cut online, with the action of the original internal stress and the influence of the processing thermal stress generated by the spark discharge, it will produce undirected and irregular deformation, which will make the subsequent cutting uneven in thickness and thickness, which affects the processing quality and machining accuracy.Therefore, different processing margins need to be reserved according to different materials, so that the workpiece can fully release the internal stress and completely torsional deformation, and there can be sufficient margin for fine cutting in multiple subsequent cuts, so that the final size of the workpiece can be guaranteed.
A brief discussion on the advantages and disadvantages of the silk road and the brothers' family
2022/07/28
A brief discussion on the advantages and disadvantages of the silk road and the brothers' family
We often talk about slow-walking silk, medium-walking silk, and fast-walking silk, but people who are just entering the industry may not know the differences between the three, and how can these three types of silk be used to interpret the myths of China's innovation and development?Of course, different products are naturally positioned differently due to market requirements.
The three brothers have the same thing in common: slow wire, medium wire, and fast wire are all metal wire and metal discharge corrosion processing.
Slow wire walking characteristics：
The electrode of the slow wire is copper wire.Only once can the copper wire be cut once.It is characterized by high machining accuracy and can reach within 0.01mm.The surface processing roughness is very good.But the price of slow wire-walking machine tools is more expensive.
Quick-walking silk features：
The wire electrode is molybdenum wire.Unlike slow-moving wire, molybdenum wire is also cheaper.And it is the reciprocating processing of molybdenum wire.Machine tool prices are cheaper.And the fast-moving silk was invented by the Chinese.The processing efficiency is high and the cost is low.However, the machining accuracy of fast wire-walking machine tools is not as good as slow wire-walking.The surface roughness is also very poor.
Middle wire characteristics：
Take the advantages of fast and slow wire walking.Medium walking silk evolved from fast walking silk.The basic processing principle is the same.It is also processed by reciprocating molybdenum wire.But the addition of a function is multiple cutting and processing.Multiple cutting processing is to cut a workpiece into three knife routes.The first cutting is equivalent to roughing, and the second cutting is equivalent to semi-finishing.The third time of cutting is equivalent to finishing.The discharge parameters of each machining are different and the contact gap with the workpiece cutting is different. Workpieces with higher machining accuracy requirements can be processed.The surface roughness can reach R0.8.
How to operate the spark machine
2021/11/12
How to operate the spark machine
How to operate the spark machine, the following Xiaobian will summarize it for everyone.
1.The spark machine first checks that the main power switch is on.
2.Install the electrode and chuck, correct the vertical and parallel reference, place the workpiece on the magnetic workbench, and fix the magnetic absorption after correcting the parallel reference.
3.Use the electrode to find the discharge position of the workpiece X.Y coordinates, AT詷 to OA, PA20µS~45µS when searching for edges.
4.Polarity selection, (copper is the positive electrode, the workpiece is the negative electrode).
5.Current AT adjustment, the combination of discharge time PA, extensive discharge (electrode unilateral gap 0.12) ATS~45A, PA60s~120µs, the specific conditions depend on the size of the discharge electrode area, the discharge area is small, extensive discharge can be used 1.5a90µs (when less than 1mm2) to avoid excessive electrode loss; fine discharge (electrode unilateral gap 0.04), AT1.5~SA.PA20µS~60µs, when the discharge area of the fine discharge is large, first use AT1 .5PA60µS When the side wall is placed at about 0.1, switch to AT3A.PA30µS, leaving 0.030, then switch to AT1.5A.PA30µS and put it at 0.005, and finally repair 0.025 on one side (AT1.5A PA30µS).
6.Rest time PB, discharge gap voltage adjustment, PB3~4 when extensive, the gap voltage is adjusted to 3 or 4, PB is adjusted to 5 or 6 when fine repair, and the gap voltage is adjusted to 5 or 6.
7.Servo strength, rotation setting, when extensive, the servo is adjusted to 6 or 7, and the rotation time of the nose up and down is set to 5\4 or 4\4, respectively.When playing carefully, the servo is adjusted to 5, and the upper and lower rotation time of the nose is set to 5\2 or 6\3 respectively.
8.Turn on the liquid level control switch (the indicator light is flashing when it is turned on), and the sleep switch is turned on (the indicator light is on when it is turned on).
9.Manual servo feed, reach the position of the Z-axis datum, set the discharge depth, and when the depth is set, enter the data at the moment when the electrode is in full contact with the workpiece, and then perform Z-axis correction based on the difference.(Do not press the F1 switch down to set the depth).
10.The processing hydraulic motor is on, and the oil flushing position is adjusted.
11.The discharge switch is on.
12.Observe whether the V meter, A meter index, and servo stability indicator are stable.
13.Confirm whether the discharge position is correct.
14.The processed workpiece electrodes and related picture files are placed in the corresponding indicated positions.
The above is the operation method of the spark machine for your reference.
Why did the manufacturers of Zhongtao silk choose to cooperate with Ande?
2024/01/03
Why did the manufacturers of Zhongtao silk choose to cooperate with Ande?
Nowadays, everyone uses the ”Internet+" thinking mode to look at problems. Traditional companies are also preparing to join the blue ocean of the Internet. Some companies have already tested the water. Although Ande Jianqi is also learning and growing in the ocean of the Internet, in terms of reputation and influence in the industry, many friends may still be looking for answers. Why are Ande Jianqi products so trustworthy?Next, we talk about what is in our hearts through the Internet.
Our company is located in Fengxiang Science and Technology Development Zone, Huairou District, Beijing. It is a high-tech enterprise integrating R&D, production and sales of CNC machine tools. Since its establishment, the company has always aimed at “creating a world brand and creating a perfect team”, and it is its mission to improve the level of manufacturing equipment in our country.It is currently one of the few domestic manufacturers with high-end core technology of electric machining machine tools.
We have sales all over the country, and the after-sales service is very guaranteed.
Whether our wire cutting machine tools are medium-moving wire cutting or slow-moving wire cutting, they have excellent stability, can engage in high-speed and high-precision processing, simple and convenient operation, low cost of late use, and extremely cost-effective overall.
The trust of customers is not promoted in a short period of time. This comes from the long-term attention of customers and their own service experience. Our company faces every customer with a low-key, rigorous and always sincere service attitude.There are many reasons for choosing us. If we are allowed to say one of the most important, it may be the irreplaceable corporate cohesion.
Thank you for your concern and support for many years. Without your concern and help, Ande Jianqi's medium-walking silk, slow-walking silk and other products would not have the results they have today. I also hope to work with you to contribute my youth and strength to an intelligent and perfect life.
Thank you to every good friend who cooperates with Ande Jianqi!
How to operate the wire cutting machine correctly
2022/01/10
How to operate the wire cutting machine correctly
How to operate the wire cutting machine correctly, the following Xiaobian will introduce it to you.
1. The operator must be familiar with the structure and performance of the machine tool, and can only take up the post after passing the training.Unauthorized use of wire cutting equipment by non-wire cutting personnel is strictly prohibited.It is strictly forbidden to use wire cutting equipment for ultra-performance.
2. Preparation and confirmation before operation
1. Clean up the waste and impurities on the work surface and in the work box, and do a good job in the “5S” work of the machine tool and the surroundings.
2. Check to confirm whether the working fluid is sufficient, and add it in time when it is insufficient.
3. When unmanned or precision machining, the electrode wire margin should be checked to confirm whether it is sufficient or sufficient, and if it is insufficient, it should be replaced.
4. Check to confirm the amount of waste wire in the waste wire bucket, and it must be cleaned up in time when it exceeds 1/2.
5. Check whether the inlet pressure of the filter is normal and the compressed air supply pressure is normal.
6. Check whether the inter-pole line is defaced, loose or broken, and confirm whether there is interference with the inter-pole line when moving the workbench.
7. Check the wear of the conductive block. When it is worn, the position of the conductive block should be changed, and it should be cleaned when it is dirty.
8. Check whether the pulley is running smoothly and the electrode wire is running smoothly. Check and adjust when there is a beating.
9. Check whether the electrode wire is vertical. The verticality of the electrode wire should be straightened before processing.
10. Check whether the lower guide assembly is loose, and whether the upper guide assembly is smoothly opened and closed in place.
11. Check the nozzle for defects; whether the lower nozzle is 0.05~0.1mm lower than the work surface.
12. Check to confirm whether the relevant switches and buttons are sensitive and effective.
13. Check to confirm whether the machine tool is operating normally.
14. When an abnormal phenomenon is found in the machine tool, it must be reported in time and waited for processing.
3. Precautions for clamping workpieces
1. The rust residue and impurities must be cleaned up before the workpiece is clamped.
2. The mounting surface of cutting workpieces such as templates and shaped plates should be polished and trimmed with oilstone before clamping to prevent the surface from being uneven, which affects the clamping accuracy or interferes with the lower nozzle.
3. The clamping method of the workpiece must be correct to ensure that the workpiece is straight and fastened.
4. It is strictly forbidden to use sliding screws.The locking depth of the screws should be above 8mm, and the locking force should be moderate, not too tight or too loose.
5. The press block should be clamped flatly to ensure that the force of the clamping piece is evenly balanced.
6. Be careful during the clamping process to prevent the workpiece (plate) from falling unsteadily.
7. The position of the workpiece clamping should be conducive to the alignment of the workpiece and adapt to the stroke of the machine tool, which is conducive to programming and cutting.
8. After the workpiece (plate) is clamped, it must be checked again to confirm whether it interferes with the nose, the inter-pole line, etc.
The above are the precautions for operating the wire cutting machine, and I hope it will be of help to everyone.
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