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Many friends who often deal with cutting machines often encounter the problem of cutting hot deformation of CNC cutting machines. CNC flame or plasma cutting machine is not the case. Regardless of numerical control flame cutting or plasma cutting, the cutting width is affected by many factors such as the cutting nozzle. Regardless of the accuracy of the equipment itself, the accuracy of the parts cut by it is generally around Â±0.5 mm. The error is several orders of magnitude higher than the device itself. That is, the CNC cutting machine imported with millions of millions of dollars can only be so. How to solve it? The first thing I would like to say is that this situation cannot be avoided. Thermal cutting will certainly dissipate heat. It can only be said to reduce the occurrence of this situation. The following Wuhan Huayu Cheng Numerical Control teaches you three measures to reduce the heat distortion of the CNC cutting machine.
First, after controlling the temperature rise and adopting a series of measures to reduce the heat source, the situation of thermal deformation will be improved. The more effective method is to force cooling in the fever part of the CNC plasma cutting machine tool, or through the heating method in the machine tool's low temperature department, so that the temperature of each point of the machine tool tends to be consistent, which can reduce the warpage caused by the temperature difference. But to completely eliminate this problem is very difficult, so only by controlling the temperature rise to reduce the impact of heat sources. Because of the left-right symmetry, the main axis of the double-column mechanism is not only deformed in the vertical direction but also deformed in other directions. The vertical axis movement can be easily compensated by a coordinate correction amount.
Second, improve the machine tool organization, the same fever under the premise, the machine tool body has a great influence on the thermal deformation. The structure should also reduce the distance between the center of the main shaft and the main axial surface as much as possible to reduce the total amount of thermal deformation. At the same time, the forward and backward temperature rise of the main shaft box should be consistent to prevent the main shaft from tilting after deformation. This can minimize the effect of hot deformation of the spindle on the machining diameter.
Third, the thermal source of thermal deformation caused by the internal combustion of the machine tool should be separated from the host. The thermal deformation of the shaft occurs in the vertical direction of the tool cutting. Single-column mechanisms such as those used in CNC machine tools may be replaced by two-column mechanisms.
Should learn more about this knowledge, regulate the manipulation, and reduce the impact of possible thermal deformation. CNC flame cutting machine as a thermal cutting processing equipment, in the frequent use of processing, may cause structural deformation due to temperature changes.
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