Shanghai imported motorized spindle maintenance manufacturer believes that CNC machine tools using a motorized spindle structure simplify the structure, reduce transmission and connection links, thus improving machine reliability. The motorized spindle functional component has mature technology, complete functions, excellent performance and reliable quality, making the machine tool performance more complete and reliability further improved. Motorized spindles can form standardized, serialized products according to use, structure, performance parameters and other characteristics, and can be selected by the machine host, thereby promoting modular machine tool structure.

The manufacturer believes that standardized, serialized motorized spindle products are easy to form specialized, large-scale production, thereby realizing low-cost manufacturing of functional components; after adopting motorized spindles, the simplification and modularization of machine structure also help reduce machine cost. In addition, the machine development cycle can be shortened to adapt to the current rapidly changing market trend.

The motorized spindle system is directly driven by a built-in motor, satisfying the high speed, high precision, high reliability and low vibration requirements of high-speed cutting machine tools. Together with the high-speed feed system and high-speed tool system, it is a necessary condition for high-speed cutting. Motorized spindle technology combines motor frequency conversion, closed-loop vector control, AC servo control and other technologies.

At the very beginning of designing a high-speed motorized spindle, the rotating parts of the spindle system should first be analyzed, and combined with a large amount of data, all rotating parts should be classified. According to the actual load conditions of the high-speed spindle, calculation programs are added. Through calculation, the design scheme can be adjusted according to the actual situation to obtain the structure and result we need.

According to the adjusted layout, the design drawing is made and machined. Many factors affect the quality of a high-speed motorized spindle, including material selection and heat treatment process. The unbalanced mass of high-speed rotating parts must be strictly controlled.

After machining is completed, the high-speed motorized spindle enters assembly. Most high-speed motors should have no major problems, but it cannot be ruled out that some high-speed spindles have quality problems. Generally, related problems appear during the test stage after assembly, such as large vibration, high temperature and loud noise. At this time, overall dynamic balancing is needed to eliminate the unbalance caused by assembly or other reasons.

The manufacturer believes that the motorized spindle of an engraving machine is the source of the whole machine speed. Spindle drive speed changes generally appear in two main forms.

1. The spindle motor changes gear, aiming to reduce spindle speed and increase transmission ratio, thereby satisfying the cutting requirements of the machine.

2. The spindle motor drives the spindle through a synchronous toothed belt or V-belt. This kind of spindle is also called a wide-range motor or heavy-cutting motor, with constant power and wide speed range characteristics.

The manufacturer believes that no mechanical speed change is needed during work, and the gear and clutch are omitted at the headstock. At this time, the spindle box actually becomes a spindle support, simplifying the main drive system, thereby improving the reliability of the transmission chain.