How to remove the engraving machine stepping motor?

Answer:

Engraving machine, stepping motor, disassembly process:1. engraving machine, remove front and rear end cover, front and rear nut;

2. push the main shaft and rear bearing seat backwards and straight from the front of the shaft;3. front and rear bearing gaskets;

Second, according to the direction of the axial thrust bearing, a sleeve, hand carving and milling machine design pressure down jacket, (the bearing preload force and spring washer, adjust the clearance of roughly the same), there are two ways, one is the replacement of the bearing and bearing the position two, is the height of the washer 8 grinding, grinding method for grinding word washer, while rotating the washer washer position, ensure parallelism within 2um, the gasket gap adjustment, the gasket stress is uniform, the two set of pre load bearing uniform;If the selected bearings have been matched, the size difference between the inner and outer gaskets shall be less than 2um, and the parallel difference of the gaskets shall be within 2um, and the bearings shall be installed in accordance with the V shape mark on the outer diameter;

The research, if the gasket is not appropriate, then two sets of bearing a small load, another heavy load bearing force is not uniform, may have a fever, seriously affect the service life, and washers stress the same, two sets of bearing preload uniform;4., cleaning bearings, coat slope downward (or inner set of slopes upward) rotating cleaning (in clean gasoline), bearings should be cleaned more than two times, pay attention to cleaning the bearings, bearings up and down position can not be misplaced;5., before bearing, bearings and shaft housing, bore, spindle first with lubricating oil (motorized spindle lubrication) lubrication, one is easy to install, and two is to ensure that the electric spindle start bearing lubrication;6. cleaning the shaft of other parts, bearing cleaning should be natural drying, strictly prohibit the use of high-pressure gas drying;