One-time stamping forming mold for ball pocket of holder

Abstract

The invention relates to a one-time stamping forming mold for a ball pocket of a holder. The one-time stamping forming mold comprises a base, a main sliding body, an inner mold, outer molds and a shrink sleeve. The main sliding body is arranged inside the base vertically; the main sliding body is sleeved with the inner mold, and a plurality of outer molds are evenly arranged on the base in the circumferential direction; the outer molds are all arranged outside the inner mold; the shrink sleeve is arranged on the upper portions of the outer molds in a sleeving mode; a plurality of punches are evenly arranged on the side wall of the inner mold in the circumferential direction; and limiting grooves are formed in the inner walls of the outer molds. A first spring is placed horizontally inside each punch; a kidney-shaped hole is formed in the upper portion of each punch; a plurality of pin holes are evenly formed in the upper end face of the inner mold; and a plug pin is arranged inside each pin hole. According to the one-time stamping forming mold for the ball pocket of the holder, the diameter variation of the main sliding body is utilized to push the punches to move radially in a divergent way along the main sliding body, so that multiple holes are punched in the ball pocket of the holder at a time; through the elastic effect of the first springs arranged inside the punches, automatic resetting of the punches after the completion of the punching is achieved. The mold is simple, punching is stable and highly precise, and automation and flow line operation can be easily achieved.

Description

technical field [0001] The invention relates to the field of molds, in particular to a one-time stamping mold for ball pockets of cages. Background technique [0002] As we all know, bearings generally include four parts: outer ring, inner ring, rolling body and cage. Among them, the cage refers to the bearing parts that partially wrap all or part of the rolling body and move with it to isolate the rolling body and prevent rolling. The rolling elements are brought together and usually guide the rolling elements and keep them in the bearing. The accuracy and quality of the cage in the bearing will affect the rolling condition of the rollers and the bearing clearance, which will directly affect the performance of the bearing. As the mold is the direct equipment for producing the cage, it is particularly important to design a reasonable mold structure. [0003] A few days ago, for the ball cage cage, because the inner and outer diameters of the cage are spherical, and the pock...

AI Technical Summary

Problems solved by technology

[0003] A few days ago, for the ball cage cage, because the inner and outer diameters of the cage are spherical, and the pockets are spherical pockets, it is difficult to process spherical pockets on the spherical arc surface, and the general conventional technology is difficult to meet the technical standards.

The traditional processing technology is generally to first mark the position of the pockets on the cage through calculation, and then use the corresponding die to punch out the individual pockets one by one. The structure of the die is simple, but there are problems when marking the positions of the pockets. Large errors lead to large errors in the circumferential spacing between the pockets and low axial position accuracy; in addition, punching one by one will cause uneven force on the cage, prone to distortion and deformation, and cause serious hidden dangers , so that it is difficult to install the roller, and it is easy to appear the phenomenon of inflexible rotation

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