How to distinguish the quality of spindle motor?
In industrial production, many mechanical equipment companies use inferior spindles for the sake of small and cheap, which will affect the work efficiency and product quality in production. How to distinguish the inferior spindles
1. The external process of the electric spindle is rough. According to the high requirements, all kinds of motor parts on the electric spindle, such as bearing pedestal and washer, need to go through a process of rough grinding, grinding, fine grinding and re fine grinding. However, the inferior electric spindle with low price generally omits the latter two parts. Some even use the fine turning instead of grinding, so the quality of the electric spindle is good or bad, It also has a lot to do with price.
2. Choose the low-level spindle, the level of spindle is different, and there is a big gap in the price. The price of all ceramic ball bearings can reach thousands, while the price of ordinary high-speed bearings is much cheaper.
3. To replace the original electric spindle material with low-cost raw materials, to reduce the cost of the electric spindle, on the one hand, it is necessary to reduce the manufacturing process, on the other hand, it is necessary to replace various raw materials. At present, aluminum is commonly used in the market to replace copper, which will have a certain impact on the performance of the motor, and after using aluminum, it is much cheaper than copper.
4. The inventory or second-hand spindle can be reprocessed by polishing the surface, and the old spindle will become new after polishing the surface, so the cost will be very low, but no matter in terms of accuracy or performance, it seems that there is no problem, but in fact, it will have adverse effects in the use process.