Error form in the use of wire cutting machines

The error of the wire cutting machine refers to the difference between the workpiece obtained by the cutting and the expected value at the end of the wire cutting. This gap may come from machine tool accuracy, which may come from material deformation, may be due to calculation errors, or may come from machine control control errors, including:
1. Computational errors: This is the reason for people. It can be checked and proved. It can also be discovered early. The middle calculation is premature rounding, and multiple irrational numbers with insufficient digits (such as multi-tooth shape) are used repeatedly, and the decimal angle system is confused with the degree-minute system.
2, machine control error: the frequency of occurrence is very rare, because today’s machine control system is proven, mature technology. It is rejected by human error, and it can be checked or zeroed before processing. The error homing check accumulated due to multiple rotations can also be found.
3, material deformation: as long as there are good operating habits, the calculation is completed to be rehearsed, after the input is completed to be verified, before the start of the school to zero, the hand wheel scale to check. I am not wrong, the machine tool should not be wrong, there should be sufficient grasp, the rest is deformation, but the reasons for the deformation and the way to overcome must be carefully pondered.
4. Machine tool accuracy: This usually refers to mechanical precision, which is the difference between the actual value and the theoretical value. The most direct cause of this difference is the hysteresis and straightness, verticality. The range of this difference should be within 0.005~0.02mm. This value can be measured and can be adjusted. In today’s machine structure, it is very easy to control this error value below 0. 02. Below 0.005 is very difficult.
In addition, during the use of the online cutting machine, the user also needs to carry out the necessary maintenance and maintenance, among which:
1. Check the switch knob of the circuit system, turn on the AC stabilized power supply, first turn on the power switch, then turn on the high voltage switch, after 5 minutes, connect to the negative line.
2. Check the output data of the regulated power supply and whether the digital tube of the xenon lamp is normal. Enter the information for about 5 minutes and perform the trial operation. Normally, it can be processed.
3, wire cutting high-frequency power switch should be placed in the off position before processing, in the case of molybdenum wire operation, can open high-frequency power, and should be maintained at 60 ~ 80 volts. The high frequency power supply should be turned off before parking.
4. When cutting, add coolant. When the molybdenum wire contacts the workpiece, check whether the voltage and electro-hydraulic value of the high-frequency power supply are normal, and do not process it under the condition of arcing.
5. It is forbidden to touch the wire or workpiece with your hand or conductor. It is also not allowed to touch the switch or other electrical parts with wet hands.
6. If a fault occurs, the high-frequency power supply should be turned off immediately, and the reason should be analyzed. Other items, especially metal equipment, are not allowed in the electric box.