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Factors Affecting the Machining Accuracy of Turning-milling Machine Tool

 For high-speed precision turning-milling machine tools, the spindle system is an electric spindle structure. The machining accuracy of the machine tool largely depends on the precision of the spindle system of the machine tool and is affected by the tool holder position accuracy and the dynamic performance of the machine tool. . Therefore, how to improve the accuracy of the electric spindle system, improve the position accuracy of the tool holder, and improve the dynamic performance of the machine tool in the manufacture and assembly of turning and milling machine tools is the key to the design of the machine tool.
The
    In the following, Yuhuan Haoyide numerical control from several aspects to analyze the factors affecting the machining accuracy of turning and milling machine tools, and put forward the corresponding solutions.
The
    The combination of machine tools is one of the important directions for the development of machine tools. The composite machine tool also includes a variety of forms such as turning and milling, turning and milling, compound milling, compounding of cutting and 3D printing, compounding of cutting and ultrasonic vibration, compounding of laser and stamping, etc. The purpose of compounding is to make a machine more Functionality, multi-tasking can be done in one setup to increase machining efficiency and machining accuracy.
 
    Compared with conventional NC machining processes, the outstanding advantages of turning and milling machine tools are mainly manifested in the following aspects:
The
    1. Shorten product manufacturing process chain and increase production efficiency. Can install a variety of special tools, new tool arrangement, reduce tool change time, improve processing efficiency. Turn-milling machining can complete all or most of the machining operations in one setup, thereby greatly shortening the product manufacturing process chain. In this way, on the one hand, the production assist time caused by the change of the installation card is reduced, and at the same time, the production equipment fixture manufacturing cycle and waiting time are also reduced, and the production efficiency can be significantly improved.
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    2, reduce the number of clamping and improve the processing accuracy. The reduction in the number of cards installed avoids the accumulation of errors due to the positioning benchmark transformation. At the same time, most of the current turning and milling machine tools have on-line detection functions, which can realize in-situ detection and precision control of key data in the manufacturing process, thereby improving the processing precision of the products; the high-intensity integrated bed design improves the difficulty in cutting. The gravity processing capacity of the material; The automatic milling machine equipped with automatic feeding device can realize automatic feeding and continuous, basically realize the single-machine-line production line operation.
 
The
    3, reduce the area, reduce production costs. The compact and beautiful shape design of the turning and milling machine tool improves the space utilization and makes maintenance and repair more convenient for customers. Although the price of a single unit of turning and milling compound processing equipment is relatively high, the overall fixed assets can be effectively reduced due to the shortening of the manufacturing process chain and the reduction of equipment required for the product, as well as the reduction in the number of fixtures, floor space, and equipment maintenance costs. The costs of investment, production operations and management.
Article link: China Machine Tool Business Network

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