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There are quite a few precautions to be taken during the operation of a CNC lathe. Avoiding these precautions as much as possible plays a very important role in improving the efficiency and precision of CNC lathe operation, and also extends the service life of CNC lathes. Today, our CNC lathe manufacturer will explain the six major precautions for CNC lathe operation.

1. Reasonably choose cutting parameters

Firstly, use a hand to remove the nut from the hydraulic cylinder, remove the pull tube, and extract it from the rear end of the spindle. For efficient metal cutting, the material to be machined, cutting tools, and cutting conditions are the three major elements. These determine the processing time, tool life, and processing quality. The economically effective processing method must be a reasonable choice of cutting conditions. The three elements of cutting conditions: cutting speed, feed rate, and cutting depth directly cause tool damage. With the increase of cutting speed, the temperature of the cutting edge will rise, resulting in mechanical, chemical, and thermal wear. Users need to choose the cutting speed based on the material being processed, hardness, cutting state, material type, feed rate, cutting depth, etc. The selection of the most suitable processing conditions is based on these factors. Regular and stable wear and tear to achieve lifespan is the ideal condition. However, in practical operations, the choice of tool life is related to tool wear, changes in machined dimensions, surface quality, cutting noise, machining heat, and other factors. When determining the processing conditions, it is necessary to conduct research based on the actual situation. For difficult to machine materials such as stainless steel and heat-resistant alloys, coolants or blades with good rigidity can be used.

2. Reasonably choose cutting tools

When rough cutting, it is necessary to choose cutting tools with high strength and good durability to meet the requirements of large back cutting and large feed rate during rough cutting.

Increasing cutting speed will reduce tool life by half. The relationship between feed conditions and tool wear occurs within a very small range. But with a large feed rate, the cutting temperature rises, and there is significant wear later on. It has less impact on the cutting tool than the cutting speed. Although the impact of cutting depth on cutting tools is not as significant as cutting speed and feed rate, in micro depth cutting, the material being cut produces a hardened layer, which also affects the tool's lifespan.

To reduce tool changing time and facilitate tool alignment, machine clamped knives and machine clamped blades should be used as much as possible.

3. Reasonably choose fixtures

Try to use universal fixtures to clamp workpieces and avoid using specialized fixtures;

Align the positioning benchmarks of the parts to reduce positioning errors.

4. Determine the processing route

The machining route refers to the motion trajectory and direction of the tool relative to the part during the CNC machining process.

When precision machining, it is necessary to choose tools with high precision and good durability to ensure the required machining accuracy.

Efforts should be made to shorten the machining route and reduce the tool idle time.

5. The relationship between machining route and machining allowance

At present, in the absence of widespread use of CNC lathes, excessive allowance on the blank, especially the allowance containing forged or cast hard skin layers, should generally be arranged for processing on ordinary lathes. If it is necessary to use a CNC lathe for machining, attention should be paid to the flexible arrangement of the program.

6. Key points for fixture installation

At present, the connection between the hydraulic chuck and the hydraulic clamping cylinder is achieved through a pull rod. The key points of hydraulic chuck clamping are as follows: it should be able to ensure machining accuracy and surface roughness requirements; Then remove the chuck fixing screws with a handle to remove the chuck. The smoothing edge on a cutting tool refers to a small section of the blade that is ground parallel to the tip of the tool in the direction of the secondary angle behind the cutting edge. It is mainly used for a second cutting after the cutting edge is cut, which is equivalent to removing burrs and other scars during the finishing process. The purpose is to improve the surface roughness of the workpiece and is commonly used on precision machining tools.

The above is our CNC lathe manufacturer's explanation of the six precautions for CNC lathe processing and operation. We hope that the above explanation can be helpful for everyone when using CNC lathes in the future.