Automatic Assembly Method of Motor Rotor Knurled Shaft and Rotor Core

Abstract

The invention discloses an automatic assembly method of a motor rotor knurled shaft and a rotor core, comprising: making the rotor knurled shaft move circumferentially together with a turntable mechanism; The coaxiality of the outer circle of the first bearing block, and whether the coaxiality between one end of the inner hole of the rotor knurled shaft and one end of the knurled outer circle is qualified; the industrial computer calculates and judges the other end of the inner hole of the rotor knurled shaft Whether the coaxiality with the outer circle of the second bearing block, and the coaxiality between the other end of the inner hole of the rotor knurled shaft and the shoulder are qualified; the industrial computer calculates and judges the coaxiality between the inner hole and the outer circle of the rotor core Whether it is qualified or not; transfer the rotor knurled shaft and qualified rotor core judged by the industrial computer to the press-fitting machine for press-fitting, so that the rotor knurled shaft and the rotor core are fastened together. The automatic assembly method of the invention has the advantage of high pass rate.

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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