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Manufacturing process for thin-wall metal hollow rotor cup

A technology of hollow rotor and manufacturing process, which is applied in the field of manufacturing process of metal hollow rotor cup, which can solve the problems of poor roundness, uneven wall thickness and poor rigidity of the cup

Inactive Publication Date: 2009-07-08
XIAN MICROMOTOR RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the wall thickness of the hollow rotor cup is only about 0.2mm, the slenderness ratio is large, it is a thin-walled part, and the rigidity is poor. The traditional processing technology often makes the roundness of the cup poor and the wall thickness is uneven, so that the residual voltage of the tachogenerator And its fluctuation value increases, which affects the product qualification rate

Method used

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  • Manufacturing process for thin-wall metal hollow rotor cup
  • Manufacturing process for thin-wall metal hollow rotor cup

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] The preparation method of the present invention is as follows:

[0016] 1) First, the annealed bar is roughly turned to obtain a hollow rotor cup with an outer diameter of φb, an inner diameter of φa and an inner hole of φc (see figure 1 ), and then low-temperature annealing treatment to eliminate stress;

[0017] 2) Clamp the outer circle φb of the rotor cup with a spring chuck, and process the end face A of the rotor cup so that the total length L of the rotor cup has a machining allowance of 0.8mm to 1mm;

[0018] 3) Position the end face A and the outer circle φb, and tighten the screws. According to the actual processing size requirements, the inner circle φa of the rotor cup is finely turned in place with a diamond tool so that the inner diameter is φa1, and then the inner circle is tested with a pneumatic plug gauge. The actual measurement tole...

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Abstract

The invention relates to a manufacturing process for a thin-wall metal hollow rotor cup. The low temperature annealing working procedure is added before and after rough turning to eliminate the deformation stress; the positioning and clamping, the selection of a cutting tool as well as the detection of a dimensional tolerance are fully considered during the finish turning to prevent the workpieces from being distorted and enhance the uniformity of the cup wall; and the manufacturing process adopts the scheme that a rotating axle is pressed in when the mandrel is not taken out of the rotor cup, and the contact surface is coated with adhesive. Therefore, the process is simplified, and the concentricity between the rotor cup and the axle core is ensured.

Description

technical field [0001] The invention relates to a manufacturing process of a metal hollow rotor cup, in particular to a manufacturing process of a thin-walled metal hollow rotor cup used in an AC asynchronous tachogenerator. Background technique [0002] The existing hollow rotor cup manufacturing process adopts traditional processing technology: after the bar is rough-turned, it is annealed and then finished; the rotor cup is fixed on the rotating shaft by conical pin fastening or nut compression. Since the wall thickness of the hollow rotor cup is only about 0.2mm, the slenderness ratio is large, it is a thin-walled part, and the rigidity is poor. The traditional processing technology often makes the roundness of the cup poor and the wall thickness is uneven, so that the residual voltage of the tachogenerator And its fluctuation value increases, which affects the product qualification rate. Contents of the invention [0003] The purpose of the present invention is to ov...

Claims

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Application Information

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IPC IPC(8): H02K15/02
Inventor 张侠彭庆
Owner XIAN MICROMOTOR RES INST
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