Direct-driven swing head air cooling system

Abstract

The invention discloses a direct-drive swing head air cooling system, and relates to the technical field of direct-drive swing head cooling. The direct-drive swing head air cooling system comprises a C shaft, an A shaft, an electric spindle, a spindle box, an A shaft shell, an air conditioner and cooling pipelines, the electric spindle is installed in the spindle box, the A shaft is installed in the A shaft shell, the C shaft and the A shaft are both of a hollow structure, one ends of the cooling pipelines are connected with the air conditioner, the other ends of the cooling pipelines penetrate through the interior of the C shaft and extends into the A shaft from the interior of the A shaft shell, and air holes are formed in the portions, located in the C shaft, the A shaft and the spindle box, of the cooling pipelines. The cooling pipelines are arranged in the C shaft, the A shaft and the A shaft shell, and the air holes are formed in the cooling pipelines, so that parts in the C shaft, the A shaft and the A shaft shell can be rapidly cooled, the heat exchange range and the heat exchange area can be enlarged through arrangement of a first branch pipe and a second branch pipe, rapid cooling is facilitated, the heat dissipation efficiency is improved, and the thermal deformation influence is reduced.

Description

technical field [0001] The invention relates to the technical field of direct-drive swing head cooling, and more particularly to a direct-drive swing head air cooling system. Background technique [0002] In CNC machine tools, due to the high-speed operation of the direct-drive swing head, thermal deformation will occur on the side of the headstock and in the Z-axis direction. Thermal deformation not only reduces the life of the swing head, but also affects the machining accuracy. At present, most of the cooling structures used in the existing cooling direct-drive swing head internal components are cooling waterway structures, which roughly include three forms of spiral waterway, U-shaped guide water channel waterway and vertical circulation waterway. Among them, the vertical circulation water channel structure has poor water circulation, and the phenomenon of coolant backflow is easy to occur during the cooling process. The design of the waterway will cause uneven cooling ...

AI Technical Summary

Problems solved by technology

Among them, the water circulation of the vertical circulation waterway structure is not good, and the phenomenon of coolant backflow is very easy to occur during the cooling process; the U-shaped guide tank waterway improves the right-angle elbow structure of the vertical circulation waterway, which solves the problem of coolant backflow, but the U-shaped The design of the waterway will cause uneven cooling area and poor cooling effect; the spiral waterway structure is a cooling method with better cooling effect in the prior art, but the cooling area of ​​the direct-drive swing head is cooled by liquid cooling, which has a great impact on the sealing technology. The requirements are high and the cooling effect of the components inside the direct drive swing head cannot be quickly achieved

At the same time, in the prior art, there are also deficiencies in the cooling temperature control of the direct-drive oscillating head, which cannot effectively control the cooling effect of the motor in real time, causing thermal displacement of the direct-drive oscillating head due to high temperature, reducing the swing head. Precision

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