Device for forming axial crack in annular part

Abstract

The invention belongs to the technical field of bearings, and particularly relates to a device for forming axial crack in an annular bearing part. The device comprises a base, positioning plates arranged on the base, and a pressing sleeve arranged on the outer sides of the positioning plates in a sleeving mode and can move up and down relative to the base; the pressing sleeve and the positioning plates jointly define a cracking cavity used for containing an annular part, and when the annular part is located in the cracking cavity, the upper end face of the pressing sleeve is higher than the highest point of the outer circumferential face of the annular part; a bearing outer ring to be cracked is limited through the cracking cavity formed by the pressing sleeve and the positioning plates, during fracturing, a pressing machine firstly makes contact with the upper end face of the pressing sleeve, the pressing machine presses downwards to drive the pressing sleeve to conduct pressing downwards together till the pressing sleeve is pressed on the bearing outer ring to complete the fracturing action, therefore the bearing outer ring is positioned and oriented through the cracking cavity, and the fracturing position of the bearing outer ring can be kept upward and is not prone to moving; and in addition, the pressing machine makes contact with the pressing sleeve at first to achieve the protection effect achieved without directly pressing the outer ring, and therefore the cracking effect on the outer ring is better.

Description

【Technical field】 [0001] The invention belongs to the technical field of bearings, in particular to a device for forming axial cracks in annular bearing parts. 【Background technique】 [0002] The load carrying capacity of the bearing is related to the number of rolling elements filled inside the bearing, the more rolling elements there are, the greater the carrying capacity. In order to obtain higher bearing capacity, especially the bearing capacity of ball bearings, in the prior art, an axial crack is opened on the outer ring of the bearing or a ball gap is opened on the rib diameter of the inner and outer ring of the bearing, and the crack or gap is used to This is achieved by filling a larger number of balls inside the bearing. For multi-ball bearings with outer ring axial cracking, limited by the existing outer ring cracking technology, there are often defects such as irregular cracks, chipping, non-returning and matching after cracking, which seriously affect the appea...

AI Technical Summary

Problems solved by technology

For multi-ball bearings with outer ring axial cracking, limited by the existing outer ring cracking technology, there are often defects such as irregular cracks, chipping, non-returning and matching after cracking, which seriously affect the appearance quality of the bearing and subsequent use

Images