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Machining method for metal solid retainer with special-shaped pocket hole

A technology of a solid cage and a processing method, which is applied in metal processing equipment, manufacturing tools, drilling/drilling equipment, etc., can solve the problems of fast tool wear, low processing accuracy, and low production efficiency, so as to improve processing accuracy and Surface quality, effect of reducing surface roughness

Active Publication Date: 2020-08-04
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of fast tool wear, low machining accuracy and low production efficiency when processing metal solid cages with special-shaped pockets in the existing method, the present invention proposes a processing method for metal solid cages with special-shaped pockets

Method used

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  • Machining method for metal solid retainer with special-shaped pocket hole
  • Machining method for metal solid retainer with special-shaped pocket hole
  • Machining method for metal solid retainer with special-shaped pocket hole

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0035] Specific implementation mode 1: In this implementation mode, the processing method of the special-shaped pocket metal solid cage is carried out in sequence according to the following steps:

[0036] 1. Forming: processing to get the cage blank;

[0037] 2. The two end faces of the cage are finely machined;

[0038] 3. Roughly grind the outer diameter of the cage;

[0039] 4. The inner diameter of the fine turning cage;

[0040] 5. Mark on the cage;

[0041] 6. Drilling and milling the pocket hole of the cage: fix the cage on the transition plate tooling, and the transition plate tooling is installed in the dividing head of the four-axis machining center machine tool;

[0042] ①. Use a φ22mm drill to drill a φ22mm circular hole through the cage.

[0043] ②. Use a φ20mm milling cutter to mill an elliptical hole on the basis of a circular hole by means of circular interpolation. The surface of the φ20mm milling cutter has a Ti-Al-X-N coating;

[0044] ③. Use a φ20mm b...

specific Embodiment approach 2

[0055] Specific embodiment two: the difference between this embodiment and specific embodiment one is: step six ① middle processing parameters are: n (spindle speed)=700~800r / min, f (feed rate)=80~100mm.

specific Embodiment approach 3

[0056] Specific embodiment three: what this embodiment is different from specific embodiment one or two is: step six ② middle processing parameter is: the major axis=23.04mm of oval hole, minor axis (axial direction)=22.27mm, processing parameter: n =800~1000r / min, f=50~60mm.

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Abstract

The invention provides a machining method for a metal solid retainer with a special-shaped pocket hole, and relates to a machining method for a retainer. The machining method aims at solving the problems that when the metal solid retainer with the special-shaped pocket hole is machined, tool abrasion is rapid, the machining precision is low, and the production efficiency is low. The method includes the steps of forming, end face fine turning, external diameter coarse grinding, internal diameter fine turning, marking, drilling and milling of the retainer pocket hole in a transition disc frock,external diameter final grinding, internal diameter final turning, outer step turning, chamfering, inner groove turning, internal diameter final turning, oil groove slotting, deburring, acid pickling,silver plating, final inspection and packaging. By means of a ball-head milling tool with the shape similar to that of the retainer pocket hole, the purposes of reducing tool abrasion, prolonging theservice life of the tool and increasing the cutting speed are achieved, and by means of the method, the machining precision and the surface quality are improved, and the surface roughness of the pocket hole is reduced. The machining method is suitable for machining the special-shaped pocket hole.

Description

technical field [0001] The invention relates to a method for processing a cage. Background technique [0002] One of the main reasons for the failure of high-speed precision bearings is that the gap increases after the cage wears out, and the instability of the cage movement increases when the cage is subjected to impact loads. The characteristics of bearing failure will be reflected on the cage, so keep The structural characteristics of the frame have always been one of the important factors that must be considered in the design of high-speed precision bearings. [0003] Figure 1 ~ Figure 4 It is a metal solid cage with special-shaped pockets in aerospace bearings, figure 1 is a radial cross-sectional view of a metal solid cage with special-shaped pockets, figure 2 It is an enlarged view of a in the figure, image 3 for figure 1 Sectional view of the pocket of the shown cage, image 3 for figure 1 The cross-sectional view of the lintel of the cage shown, the pock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23C5/10B23B51/00
CPCB23P15/00B23C5/1009B23B51/00
Inventor 曹阳刘颖志石东丹金宏宇薛雪刘伟张宇杜杰纪春华苏海宇于寒王心刘新强尚炳义毕立行周英侽王德军杜存秀程研
Owner AVIC HARBIN BEARING