Automatic assembling method of motor rotor knurled shaft and rotor core

Abstract

The invention discloses an automatic assembling method of a motor rotor knurled shaft and a rotor core. The automatic assembling method comprises the following steps: the rotor knurled shaft moves along with a turntable mechanism in the circumferential direction; an industrial personal computer calculates and judges whether the coaxiality of one end of the inner hole of the rotor knurled shaft andthe outer circle of a first bearing guard and the coaxiality of one end of the inner hole of the rotor knurled shaft and one end of a knurled outer circle are qualified or not; the industrial personal computer calculates and judges whether the coaxiality of the other end of the inner hole of the rotor knurled shaft and the outer circle of a second bearing block and the coaxiality of the other endof the inner hole of the rotor knurled shaft and a blocking shoulder are qualified or not; the industrial personal computer calculates and judges whether the coaxiality of the inner hole and the outer circle of the rotor core is qualified or not; and the qualified rotor knurled shaft and the qualified rotor iron core judged by the industrial personal computer are transferred to a press-fitting machine for press-fitting, so that the rotor knurled shaft and the rotor iron core are fastened into a whole. The automatic assembling method has the advantage of being high in percent of pass.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to an automatic assembly method for a motor rotor knurled shaft and a rotor iron core. Background technique [0002] CN106300828B discloses an automatic assembly line for automotive motor rotors. The working process of the automatic assembly line is: through the feeding structure, the semi-finished products of the iron core part and the winding are put into the rotating shell to the empty tray on the product conveying line, and then the product is conveyed The running of the line drives the semi-finished products to move to the welding station, axial press-in station, copper wire shaping station, turning station, cleaning station, dynamic balance test station, characteristic inspection station, rear bearing press-in station, After each station is blocked by the corresponding block structure, it is lifted vertically to the cylinder lifting structure, so that the product at th...

AI Technical Summary

Problems solved by technology

However, if the assembly accuracy of the rotor shaft and the rotor core cannot be achieved, such as the coaxiality of the rotor shaft and the rotor core and the outer circle of the rotor core, if the corresponding requirements cannot be met, it will directly affect the performance of the motor, and the relationship between the rotor and the stator. Interference occurs when other parts are assembled

According to the applicant's understanding, at present, after the rotor shaft and rotor core are machined, a micrometer is usually used to check whether the rotor shaft is qualified, but this manual detection method is often inaccurate due to human factors, such as Whether the position is correct, or whether the clamping strength is appropriate, etc. These factors determine the accuracy of the part, and for the detection of the rotor core, the coaxiality of the inner hole and the outer circle cannot be manually detected. Therefore, The current method is to use a projector for random inspection. The inspection method of the projector is to manually take points and then measure. In some ways, the actual pass rate after motor assembly is not only low, but also the overall detection efficiency is also low through manual detection.

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