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Processing method for silicon bronze solid retainer for short cylindrical roller bearing without outer ring rib

A solid cage and short cylindrical roller technology, which is applied in the field of silicon bronze solid cage processing of short cylindrical roller bearings with no ribs on the outer ring, can solve the problems of difficult control of surface defects, internal defects of the cage, and low assembly matching rate, etc. problems, to ensure the quality of product processing and improve the effect of product integration rate

Active Publication Date: 2019-06-18
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention solves the problems of existing processing methods such as deformation of the surface of the inner diameter and outer diameter of the cage, low assembly fit rate, and difficult control of internal and surface defects of the cage, and further provides a short cylindrical roller with no ribs on the outer ring Processing method of bearing silicon bronze solid cage

Method used

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  • Processing method for silicon bronze solid retainer for short cylindrical roller bearing without outer ring rib
  • Processing method for silicon bronze solid retainer for short cylindrical roller bearing without outer ring rib
  • Processing method for silicon bronze solid retainer for short cylindrical roller bearing without outer ring rib

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specific Embodiment approach 1

[0067] Specific implementation mode one: as Figure 1~2 and Figure 5 As shown, the processing method of the silicon bronze solid cage of the short cylindrical roller bearing without ribs on the outer ring of this embodiment is realized according to the following steps:

[0068] Step 1. Preliminary cutting of pipe material;

[0069]After cutting, the length of each section of pipe material is the sum of the thickness of 3-5 solid cages;

[0070] Step 2. After the pipe material is cut off, the two end faces and outer diameter of the fine car solid cage:

[0071] Install the cut pipe material on the CNC lathe, the two end faces and the outer diameter of the cut pipe material in the fine turning step 1, the roughness of the end face and the outer diameter of the pipe material is Ra<1.6 μm;

[0072] Step three, water immersion ultrasound:

[0073] Taking the outer diameter of the thin car tube material in step 2 as the incident detection surface, the internal defect detection ...

specific Embodiment approach 2

[0114] Specific implementation mode two: as Figure 4 As shown, in the sixteenth step of this embodiment, a dynamic balance mold is used for the primary dynamic balance, and the solid cage is set on the inner diameter jammed tire of the dynamic balance mold. In this way, the dynamic balance mold is an integral structure, and the accumulated error is small, thereby ensuring the overall precision of the mold; the positioning method of the inner diameter of the cage is adopted, because the inner diameter of the cage is the guiding surface, and the machining accuracy is relatively high. Balance the size of the positioning surface of the mold with lathe processing to ensure its proper clearance. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0115] Specific implementation mode three: as figure 2 As shown, the secondary dynamic balance in step 19 of this embodiment adopts a dynamic balance mold, and the solid cage is set on the inner diameter jammed tire of the dynamic balance mold. In this way, the dynamic balance mold is an integral structure, and the cumulative error is small, thereby ensuring the overall precision of the mold; using the inner diameter positioning method of the cage, because the inner diameter of the cage is the guiding surface, the machining accuracy is relatively high, and the obtained dynamic balance data is true. Accurate, improve the processing level of the overall cage. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention discloses a processing method for a silicon bronze solid retainer for a short cylindrical roller bearing without an outer ring rib, particularly relates to a retainer processing method and aims at solving the problems of deformation of the inside diameter surface and the outside diameter surface of the retainer, low assembly and fitting rate and difficulty in control over internal defects and surface defects of the retainer of the existing processing method. The processing method comprises the following steps of performing primary cutting on a pipe; performing finish lathing on the two end surfaces of the pipe cut in the step 1; water immersion ultrasonic treatment: slitting the pipe subjected to water immersion ultrasonic treatment into 3-5 solid retainers; performing finishlathing on the slitted solid retainers; performing marking; performing drilling, and milling square holes; drawing the square holes; performing fine grinding on the outside diameter, and performing finish turning on the inside diameter; turning outer steps of the solid retainers; performing deburring; milling lock openings; performing uniform turning of two planes, chamfering and deburring; cutting the lock openings; primary dynamic balance: performing primary dynamic balance on the solid retainers subjected to lock opening cutting; performing fluorescence penetrant flaw detection; performingsilver plating; performing secondary dynamic balance; and performing cleaning and packaging. The processing method is used for processing the silicon bronze solid retainer for the short cylindrical roller bearing without the outer ring rib.

Description

technical field [0001] The invention relates to a processing method for a cage, in particular to a processing method for a silicon bronze solid cage of a short cylindrical roller bearing with no ribs on the outer ring. Background technique [0002] The existing processing method of the short cylindrical roller bearing silicon bronze solid cage without ribs on the outer ring has the following defects: [0003] 1. Forming → fine grinding of outer diameter → first plane of fine turning → second plane of fine turning → ..., the original process arranges the process of "drawing square hole" after the process of "grinding outer diameter, final inner diameter of final car, and outer step of car" At this time, the inner diameter and outer diameter of the cage are in the finished size state. Because the wall thickness of the cage is thin and the silicon bronze material is soft, it is found that the inner diameter and outer diameter of the cage are deformed after pulling the square ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 曹阳刘颖志薛雪刘伟张文张翔唐双晶纪春华于寒王心刘新强高强毕立行王雷范继承周英侽王德军杜存秀程研
Owner AVIC HARBIN BEARING
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