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How to improve the efficiency of cnc machining of precision parts?

During the machining process, some common problems will appear, such as accelerated tool wear, poor machining appearance integrity, and difficulty in chip removal. It has seriously affected the quality, production cycle and processing cost of precision parts of this type of material.

The cnc machining of non-standard spare parts requires super-lubricated machining appearance and high machining accuracy, which requires the tool to have a high standard life. Tool wear will depend on whether the quality of the machined surface is out of tolerance. The standard life of diamond tools is very high, and the tool wears slowly during high-speed cutting. Therefore, the cutting speed is not limited by the tool life during ultra-precision cutting, which is different from the general cutting law.

The cutting speed selected in the practice of cnc machining of non-standard spare parts is often selected according to the dynamic characteristics of the ultra-precision machine tool and cutting system used, that is, the speed Z with small vibration, because the surface roughness Z is small at this speed, and the processing quality is Z High, so obtaining a high-quality non-standard CNC machining surface is the primary problem in the processing of non-standard equipment parts. Good application quality, especially ultra-precision machine tools with good dynamic characteristics and low vibration, can use high cutting speed and increase processing power. Precision parts processing

The selection of CNC machining parameters for non-standard spare parts mainly includes the selection of tool viewpoint, cutting speed, cutting depth, and feed speed. From past experience, we know that when processing plastic materials, it is useful to suppress the formation of chip accumulation, assuming that a tool with a larger rake angle is selected. When the rake angle of the tool increases, the cutting force decreases, the cutting deformation is small, the contact length between the tool and the chip becomes shorter, and the chip block forms a basis for reduction.

What dangers should be paid attention to in CNC precision machining?

First, the probability of danger in power transmission equipment during actual operation is relatively high. The transmission of machine tools is generally composed of gear parts, transmission chains and transmission belts. If these parts are not planned with sufficient safety in mind and no protective layers are planned, rotating parts will be exposed. Then it is very likely that the worker's hands, or clothes, will be screwed into the equipment, and then injured.

Second, the pressurized parts of press machinery may cause danger. Generally speaking, the common ones are presses, pulverizers, molding machines, shearing machines, etc. All belong to pressure machinery, because most of these devices need to be manually operated. However, personnel operations cannot avoid human errors caused by personnel fatigue or emotional fluctuations, so it is also easy to cause injury accidents.

Third, the dangers from machine tools are also dangers. Because most machine tools are high-speed cutting machines, it is very dangerous. Knives, splashes, collisions and other factors caused by the improper direction of the operator's station may cause personal injury accidents.