Die and technology used for manufacturing inner box and outer box of roller pin thrust bearing retainer at same time

Abstract

The invention discloses a die and technology used for manufacturing an inner box and an outer box of a roller pin thrust bearing retainer at the same time. The die comprises an upper stamping die, a lower bearing die and a material strap conveying mechanism used for conveying material straps horizontally to a position between the upper stamping die and the lower bearing die. The die is characterized in that an outer box punching station, an outer box pre-cutting station, an outer box forming station and an outer box window punching station are arranged on the longitudinal inner side of the position between the upper stamping die and the lower bearing die in the material strap conveying direction in sequence, and an inner box punching station, an inner box window punching station, an inner box pre-cutting station and an inner box forming station are arranged on the longitudinal outer side of the position between the upper stamping die and the lower bearing die in the material strap conveying direction in sequence. According to the die, machining of the finished inner box and the finished outer box of the roller pin thrust bearing retainer can be achieved at the same time, the material utilization rate of the material straps and production efficiency of the inner boxes and the outer boxes are greatly improved, and automatic continuous production of the inner boxes and the outer boxes is achieved.

Description

technical field [0001] The invention relates to a special mold and technology for double-outlet inner and outer boxes of a needle roller thrust bearing cage. Background technique [0002] Thrust bearing box-type cage is generally assembled and riveted by the outer box a and the inner box b, wherein the outer box a includes a circular outer box body a1, and the outer box body a1 has a central hole in the middle—called It is the outer box center hole a2, and the inner circumference of the annular outer box body a1 and the outer circumference of the garden are all shaped with axially protruding circular flanges—called outer box flange a3, the outer box body A1 is also provided with a plurality of windows distributed in a circular interval—called the outer box window a4; the structure of the inner box b is similar to that of the outer box a, and it includes a circular inner box body b1, the inner box body b1 There is a central hole in the middle—called the inner box central hol...

AI Technical Summary

Problems solved by technology

[0004] Due to the many production processes and long process flow of the traditional process, the existing process has the following major problems: it is difficult to meet the requirements of the precision of the finished product, as well as the requirements of performance and flexibility

[0005] 1. When producing the inner box b, it is difficult to control the direction of the burrs, which ultimately leads to poor flexibility of the finished product

[0006] 2. Because the outer box a and the inner box b are processed separately, it is a waste of production materials

[0007] 3. The existing manufacturing process has a long process and high manufacturing cost

[0008] 4. Because both the outer box a and the inner box b need to be processed in different molds, the conversion process of the outer box and the inner box between different molds during production can easily lead to a larger dimensional deviation between the two, and the inner box The direction of the burrs on box b is difficult to control, resulting in the quality of the final outer box and inner box being unqualified

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