Technological method for manufacturing rotor shielding sleeve in machining mode

Abstract

The invention relates to a technological method for manufacturing a rotor shielding sleeve in a machining mode. Square boxes (6) are installed on a workbench (7), V-shaped iron (5) is installed on thesquare boxes (6), and the levelness of the V-shaped iron (5) is adjusted to be within 0.02 mm; the rotor shielding sleeve (4) is installed on the V-shaped iron (5), oil-resistant rubber plates (2) with the thickness of 3 mm are wound around the outer circle of the rotor shielding sleeve (4), and are fixed through an adhesive tape (1), and the rotor shielding sleeve (4) is fixed to the workbench (7) through shrinkage bands (3); the inner hole of the rotor shielding sleeve is subject to rough and fine machining by using a bridge-type boring cutter (10) on a boring machine, wherein the boring parameters are as follows: the cutting depth is 0.05 mm, the feeding amount is 0.1 mm, and the rotating speed is 80-100 r / min; and 0.05 mm allowance is reserved for the final size of the inner hole of the rotor shielding sleeve, and a self-made rolling cutter (8) is assembled on a boring machine spindle, and can roll the inner hole of the rotor shielding sleeve (4) to improve the smoothness. By means of the technological method, one-time clamping of the rotor shielding sleeve on the boring machine can be achieved, machining of the inner hole of the rotor shielding sleeve is completed, and the dimensional tolerance, form and location tolerance and smoothness of the inner hole are guaranteed.

Description

Technical field: [0001] The invention relates to a process method for manufacturing a rotor shielding sleeve by mechanical processing. Background technique: [0002] The rotor shielding sleeves used in shielded motors are mainly manufactured in two ways: spinning process and plate welding and rolling process. The thickness and size of the rotor shielding sleeve manufactured by the spinning process are not uniform, and the straightness is poor. After being assembled on the rotor, there will be overall runout difference, which will affect the subsequent dynamic balance of the rotor and even affect the overall operation of the motor, reducing the service life; the plate welding and rolling process manufacturing The welding quality of the rotor shielding sleeve is difficult to control, and the performance deviation of the weld seam and the heat-affected zone is relatively large. After being assembled to the rotor, defects such as bulges and wrinkles are prone to occur under pres...

AI Technical Summary

Problems solved by technology

The thickness and size of the rotor shielding sleeve manufactured by the spinning process are uneven, and the straightness is poor. After being assembled on the rotor, there will be overall runout difference, which will affect the subsequent dynamic balance of the rotor and even affect the overall operation of the motor, reducing the service life; the sheet metal welding and rolling process manufacturing The welding quality of the rotor shield sleeve is difficult to control, and the performance deviation of the weld seam and the heat-affected zone is relatively large. After being assembled to the rotor, it is easy to have defects such as bulges and wrinkles under pressure, which will affect the operation of the motor and even cause accidents; in order to ensure that the shielded motor The performance and stability of the rotor shielding sleeve requires a new rotor shielding sleeve manufacturing process

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