Factors affecting machining accuracy of ordinary milling machine

Analysis of the main factors affecting the machining accuracy of ordinary milling machine:

a. The choice of the tool has an important impact on the machining accuracy. Tools of different materials have different effects on machining accuracy. For example, when milling steel parts, carbide milling cutters can improve the surface roughness of the machined surface, while high-speed steel milling cutters can lead to streaky marks on the machined surface. Therefore, when choosing a tool, scientific selection should be made according to the material, shape and processing requirements of the part.

b. The clamping force of the fixture also has an important impact on the machining accuracy. It is found that the fixing method of the fixture has great influence on the machining accuracy. When the clamping force of the fixture is unreasonable, the parts will be deformed in the machining process, which will affect the machining accuracy.

c. Parts size and materials and other factors have a certain impact on the machining accuracy. The hardness and size of the material have great influence on the machining accuracy. For example, harder materials require more wear-resistant tools and fixtures, while more complex parts require more sophisticated fixtures.

d. The shape factor of the part has a certain impact on the machining accuracy. The shape of the material has great influence on the machining accuracy. For example, parts with easily deformed shapes require more sophisticated fixtures.

Ordinary milling machine processing accuracy improvement method:

a. Tool optimization selection. In the process of ordinary milling machine, choosing the right tool is one of the key factors that affect the machining accuracy. According to the different parts materials, different kinds of tools need to be selected for processing in order to achieve the best processing effect. At the same time, it can also be combined with different tools for composite machining to obtain higher machining accuracy.

b. Fixture fixation optimization. Fixture is an important means to ensure the stability of parts, and its fixing effect is directly related to the level of machining accuracy. Therefore, it is necessary to select the appropriate fixture for fixing according to the size, shape and other properties of the part, the clamping force should be appropriate, and the position of the clamping point should be appropriate to ensure the stability of the part.

c. Adjustment of processing parameters. In the ordinary milling machine processing, the adjustment of processing parameters is one of the important means to improve the processing accuracy, such as uniform feed speed and reduce the finishing allowance in the processing process, so that the processing accuracy is higher.

d. Detection and adjustment. After the ordinary milling machine processing is completed, it is necessary to carry out testing and adjustment work to ensure that the processing accuracy meets the requirements, which can be measured and corrected by using measuring tools, optical measuring instruments and other means to eliminate processing errors.