What is affecting the machining accuracy of turning and milling machine tools

For high-speed precision turning and milling machine tools, the spindle system is an electric spindle structure, and the titanium machining accuracy of the machine tool depends to a large extent on the accuracy of the machine tool electric spindle system and is affected by the accuracy of the tool. Therefore, in the manufacturing and assembly process of the turning-milling compound machine tool, how to improve the accuracy of the electric spindle system, improve the positioning accuracy of the tool post, and improve the overall power function of the machine tool is the key. Carry out machine tool planning.

Next, the technicians of PTJ analyzed the factors that affect the precision of the turning-milling composite machining from multiple aspects, and proposed corresponding solutions.

Machine tool compounding is one of the important directions of machine tool development. Compound machine tools also include multiple forms, such as turning and milling compounds, milling compounds, cutting and 3D printing compounds, cutting and ultrasonic oscillation compounds, laser and stamping compounds. The purpose of compounding is to make the machine tool have multiple functions, complete multiple tasks at one time, and improve the machining capacity and accuracy.

  • Compared with traditional CNC machining technology, the outstanding advantages of turning and milling are mainly reflected in the following aspects:
    1. Shorten the production process chain and increase the output power. Various special tools can be installed, and the new tool arrangement can reduce tool replacement time and improve titanium machining capacity. Turning and milling combined machining can complete all or most of the machining procedures at one time, and then greatly shorten the product manufacturing process chain. In this way, on the one hand, the production assistance time caused by the replacement of the installation card is reduced, and the production cycle and waiting time of the tooling and fixture are also reduced, thereby significantly improving the production capacity.
  • 2. Reduce the number of clamping and improve machining accuracy. The reduction in the number of cards installed avoids the accumulation of errors due to the conversion of the positioning reference. At present, most of the turning and milling machine tools have an online detection function, which can complete in-situ detection and precise control of key data during the manufacturing process, thereby improving the machining accuracy of the product. The high-strength overall bed plan increases the difficulty of cutting material’s gravity machining ability; the turning-milling machine is equipped with automatic feeding equipment, which can complete the automatic feeding connection, basically completing the assembly line operation of a single machine tool.
  • 3. Reduce floor space and reduce production costs. The compact and beautiful appearance design of the turning and milling machine improves the use of space, makes it easier to protect and repair, and satisfy customers. Although the unit price of the turning-milling composite titanium machining equipment is relatively high, the production process chain is shortened, the number of equipment required for the product is reduced, and the total fixed assets are reduced, so the total fixed assets can be effectively reduced. Tooling fixtures, workshop area and equipment protection costs. Investment, production and operation and handling costs.

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