What are the spindle types of commonly used drilling and tapping machine machining centers?

The spindle of the drilling and tapping machine is a very important part for a drilling and tapping machining center. The formation of the spindle determines the speed and cutting force of a drilling and tapping machining center.

The spindle is a very important part for a drilling and tapping machining center. The formation of the spindle determines the rotational speed and cutting force of a drilling and tapping machining center. Drilling and tapping machining centers have different spindle modes. There are three commonly used ones. The separation is the belt-type spindle, the direct-connected spindle, and the electric spindle. The direct-connected spindle and the electric spindle are only used for high-speed machining centers. We share what types of spindles are commonly used in drilling and tapping machining centers.

1. Belt-type spindle of drilling and tapping machining center.

Belt-type spindles are widely used, ranging from small machining cores to large vertical machining cores and gantry machining cores. The speed of the belt-type spindle generally does not exceed 8,000 rpm. The higher the speed, the louder the sound. However, the belt-type spindle has a relatively large power and it is very suitable for heavy cutting, so it is widely used in large machining cores.

2. Direct spindle of drilling and tapping machining center.

Direct-type spindles are used a lot in high-speed machining centers and drilling and tapping centers, and often the speed can reach 12,000 rpm. The speed and cutting force are inversely proportional to each other. Basically, the higher the speed, the smaller the cutting force. Therefore, the cutting force of the direct-connected spindle is not as good as that of the belt-type spindle. The belt-type spindle is more stable, and has great advantages in processing some workpieces that require high surface brightness. Machining centers using direct-type spindles are basically mainly for processing small parts and products, and there is no dry cutting.

    3. Electric spindle of drilling and tapping machining center.

The electro-spindle is the latest spindle relative to the above two spindles. The speed of this spindle is very high, even if it is 50,000 rpm. Small, the speed of this electric spindle is actually the fastest, but the cutting force is the smallest, and it can only be used for milling. In terms of overseas electric spindles, it can be said that it is more thoughtful than Yu Erguo. The maximum speed of overseas electric spindles can reach hundreds of thousands. This kind of machining center with ultra-high-speed electric spindles is called ultra-high-speed machining core. However, its essential use is probably not as good as that of the direct-connected spindle.