Assembly tool and assembly process for screw bearing of automobile steering device

Abstract

The invention provides an assembly tool for a screw bearing of an automobile steering device. The assembly tool comprises an outer sleeve and an inner sleeve which is connected with the outer sleeve in a sliding way, wherein a flat bottom expansion hole is reserved on the upper part of a through hole of the inner sleeve; the orifice of the flat bottom expansion hole is provided with a chamfer; the outer sleeve is higher than the inner sleeve; the orifice of the higher end of the outer sleeve is provided with a chamfer; the chamfer part of the orifice of the outer sleeve and the chamfer port of the orifice of the inner sleeve form a feed hopper; a radial screwed hole is reserved on the lower part of the inner sleeve; an angle-square shaped groove consisting of an upper upright groove and a lower transverse groove is formed on the lower part, corresponding to the radial screwed hole of the inner sleeve, of the outer sleeve; and a locking screw is screwed into the radial screwed hole of the inner sleeve through the angle-square shaped groove on the outer sleeve. By using the assembly tool disclosed by the invention, a steel ball can automatically roll into each ball pocket of a retaining frame through the feed hopper which is formed by the orifices of the inner sleeve and the outer sleeve; and the steel ball can be wrapped in the outer sleeve by lifting the outer sleeve. The assembly tool has an ingenious design and a simple structure, and is convenient to use; moreover, the assembly time of the screw bearing is greatly reduced; and the product quality is stable.

Description

technical field [0001] The invention relates to a screw bearing assembly tool for an automobile steering gear and an assembly process of a screw bearing assembly. Background technique [0002] The screw bearing in the automobile steering gear is one of the important components of the automobile steering gear. Figure 1 to Figure 3 It is a diagram of a screw bearing, which consists of a screw 1, a cage 2, a steel ball 3, a lower screw ring 4, an upper screw ring 5, a front cover 6, and a screw plug 7. The head 1-1 of the screw 1 has a positioning convex ring body, and the positioning convex ring body 1-2 is provided with an arc groove 1-3, and the steel ball 3 is placed in the above arc groove, and the center of the steel ball 3 The space is separated by the cage 2. In the assembly process of the screw bearing, it is necessary to put the lower screw ring 4, the cage 2 and the upper screw ring 5 on the screw 1, put a steel ball 3 in each ball pocket hole of the cage 2, and th...

AI Technical Summary

Problems solved by technology

Due to the long time it takes to place the steel balls, the assembly process of the screw bearing has become a bottleneck in the production li

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