Do you know all the precautions after CNC machining?

Precautions after CNC machine tool processing

Numerical control machining refers to the machining of parts on a numerically controlled machine tool, and a machining method that uses digital information to control the displacement of parts and tools. It is to solve the problems of variable parts, small batches, messy shapes, high precision and high efficiency and automation Effective way of processing.

　　 Matters needing attention after processing:

　　 1. Remove chips, scrub the machine tool, use the machine tool and the environment to keep it clean, and pay attention to check or replace the oil wiper on the machine tool rail that is damaged.

　　2. Check the condition of lubricating oil and coolant, add or replace in time, turn off the power supply and the main power supply on the machine operation panel in turn.

　　3. When the CNC machine tool is turned on, it should follow the guidelines of returning to zero first (except for special requirements), manual, inching, and automatic. The operation of the machine tool should follow the principle of low speed, medium speed and high speed first, during which the low speed and medium speed operation time shall not be less than 2-3 minutes. After admitting that there is no abnormal situation, the operation can be started.

4. It is forbidden to hit, straighten and correct the workpiece on the chuck or between the centers. It is necessary to admit that the workpiece and the tool are clamped before proceeding to the next operation. It is necessary for the operator to replace the tool, the workpiece, adjust the workpiece or leave the machine tool during operation Downtime.

5. The safety and safety protection equipment on the machine tool must not be disassembled or moved by the operator. Before the machine tool starts processing, it is necessary to select a program verification method to check whether the program used is similar to the processed part. After the error is confirmed, the safety can be managed. Protective cover, start the machine tool for parts processing.

 cnc processing

　　6. Machine tool accessories, measuring tools, and cutting tools should be kept in good condition, and compensated for lost or damaged parry. After training, the machine should be cleaned and kept clean, the tailstock and carriage should be moved to the end of the bed, and the power supply of the machine should be blocked.

　　7. The machine tool should be shut down immediately when malfunctions or abnormal phenomena occur during operation, protect the site, and immediately state the responsibility of the site. The operator is prohibited from modifying the machine parameters. If necessary, it is necessary to notify the device administrator and ask the device administrator to correct it.

　　 8. Understand the skill requirements of the part drawing, check the size and shape of the blank for defects. Choose a reasonable method of device parts, correctly select CNC turning tools, and ensure that the device parts and tools are accurate and strong.

　　9. Understand and grasp the control and operation panel of CNC machine tool and its operation essentials, input the program accurately into the system, and simulate viewing, room cutting, and preparing for various tasks before processing.

　　 Reasonable selection of cutting parameters

　　 For high-efficiency metal cutting, the material to be processed, the material to be cut, and the cutting conditions are the three major elements. These determine the processing time, tool life and processing quality. The economical and effective machining method must be a reasonable choice of cutting conditions.

　　 The three elements of cutting conditions: cutting speed, feed rate and depth of cut directly cause tool damage. With the improvement of cutting speed, the temperature of the tool tip will rise, and mechanical, chemical and thermal wear will occur. Increased cutting speed will reduce tool life by 1/2.

　　 The relationship between the feed condition and the tool rear edge wear occurs in a very small range. However, the feed rate is large, the cutting temperature rises, and the rear side wear is large. It has less influence on the tool than cutting speed. The effect of cutting depth on the tool is not as large as the cutting speed and feed rate, but when cutting at a small depth of cut, the cutting material produces a hardened layer, which will also affect the life of the tool.