A method for assembling high and low temperature vacuum stepping motors

Abstract

The invention relates to the technical field of stepping motor assembling and particularly relates to a method for assembling a high and low temperature vacuum stepping motor. The method comprises steps that a rotation shaft and a core are assembled; an upper bearing and a lower bearing are simultaneously assembled with the rotation shaft; a stator is assembled with a motor casing. The method is advantaged in that under the condition that a rotor and the stator assembly are assembled at the same device, assembling accuracy requirements are satisfied, moreover, in the rotor assembling process,a problem that a magnetic steel near a center through hole on the core is uneven in force bearing due to overproof coaxiality among the upper bearing, the core, the rotation shaft and the lower bearing is avoided, a problem of avulsion due to overlarge regional impact is avoided, and in the assembling process of the stator assembly, a problem of damage to the stator or the motor casing caused by the overlarge regional impact due to uneven force borne by the stator or the motor casing is avoided.

Description

technical field [0001] The invention relates to the technical field of stepper motor assembly, in particular to a method for assembling a high and low temperature vacuum stepper motor. Background technique [0002] like figure 1 and 2 As shown, at present, the rotor 3 of the high-low temperature stepping motor consists of a rotating shaft 33 and a number of iron cores 32 and other main parts. A number of rotating teeth 321 are provided on the outer side of the iron core 32. On the same iron core 32, adjacent rotating teeth A groove 322 is formed between 321; the shaft 33 is coaxially provided with a journal head end 331, a journal tail end 333 and a shaft extension 334, and the journal tail end 333 is arranged on the journal head end 331 and the shaft extension 334 In between, the diameters of the journal head end 331 and the journal tail end 333 are the same, the diameter of the shaft extension 334 is smaller than the diameter of the journal tail end 333, and the connecti...

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Problems solved by technology

[0007] The purpose of the present invention is to: in the assembly process of the high and low temperature stepper motor existing in the prior art, when the assembly of the rotor 3 and the assembly of the stator assembly are placed in the same equipment, the stator, the motor housing or the The iron core of the samarium-cobalt magnet is easy to be damaged under the condition of uneven pressure or excessive impact. Provide a method for assembling high and low temperature vacuum stepping motors. During the assembly process of high and low temperature stepping motors , when the assembly of the rotor and the assembly of the stator assembly are placed on the same equipment, the assembly accuracy requirements are met, and at the same time, during the assembly process of the rotor, it is avoided due to the same The axiality is out of tolerance, which causes the magnetic steel near the center through hole on the iron core to be cracked due to uneven pressure and excessive impact in some areas, and during the assembly process of the stator assembly, avoid stator Or the pressure on the motor casing is uneven, and some areas have too much impact, resulting in damage to the stator or the motor casing

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