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Grinder manufacturers: components of vertical milling machines with high failure rates

The vertical milling machine is a kind of milling equipment compared with the horizontal milling machine. The machine has strong rigidity, wide feed and variable speed range, and can withstand heavy load chips. It is a widely used one in milling machines. Long-term use or improper use of any equipment will cause equipment wear or damage, which requires vertical milling machine manufacturers to provide timely after-sales service. According to the after-sales reaction of vertical milling machine manufacturers, the most prone to problems with vertical milling machines is the vertical milling head.

In the vertical milling head of a vertical milling machine, generally the easily damaged objects mainly include a main shaft, a main shaft sleeve and a sleeve body hole. And under normal circumstances, these items can generally be used after a certain repair without serious wear and tear.

1. Repair of the main shaft: The main shaft structure of the milling head of the vertical milling machine is basically the same as that of the horizontal milling machine. The repair method can be referred to.

2, the repair of the sleeve: When the sleeve wear is not large, the body hole repair amount is also small, the sleeve can be used after repair. The purpose of the repair is to compensate for the outer diameter wear amount, so that the fit clearance between the sleeve and the body hole can meet the requirements. The repair of the sleeve is generally done by a ferrous repair process or by replacing a new sleeve.

3. Repair of the sleeve body hole: The wear of the sleeve body hole will cause the roundness and cylindricity error of the hole to increase, and the surface roughness will be deteriorated. Since the vertical milling machine does not cause severe wear under normal use, it is generally only required to be repaired by grinding to restore accuracy. However, a separate set of grinding rods is required for grinding prior to repair.


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