A jig for processing an inner spherical 8-shaped oil groove of a joint bearing and its production and use method

Abstract

The invention relates to a bearing oil groove machining technology, in particular to a clamp for machining an oil groove, shaped like the Arabic number 8, of the inner spherical face of a joint bearing and a producing and using method of the clamp. The clamp is composed of a mold with an alpha angle face, a clamping hole, a screw hole and a fastening screw rod. The screw hole is located in the surface of the mold. The fastening screw rod is correspondingly screwed into the screw hole. The center line of the mold is perpendicular to the alpha angle face of the mold. An angle alpha is formed between the center line of the mold and the rotation axis of a lathe spindle, and the angle alpha is larger than 0 degree and equal to or smaller than 15 degrees. The clamp is used for clamping the oil groove, shaped like the Arabic number 8, of the inner spherical face of the joint bearing, and therefore an oil groove, shaped like the Arabic number 8, of the inner arc spherical face of a dual-thrust joint bearing can be machined on a common lathe, the bearing can be effectively protected by the copper head fastening screw rod, and when clamped, the bearing can be clamped many times by performing alignment one time; and the using method is easy to operate, and size control is more convenient and accurate.

Description

technical field [0001] The invention belongs to the field of mechanical equipment processing, and relates to a processing technology of a bearing oil groove, in particular to a fixture and a production and use method for processing an inner spherical 8-shaped oil groove of a joint bearing. Background technique [0002] Joint bearing is a kind of sliding bearing, which is mainly composed of an inner spherical outer ring and an outer spherical inner ring. It is generally used for low-speed swinging motion, tilting motion and rotating motion, and has a large load-carrying capacity. According to its different structures and types, spherical plain bearings can bear radial loads, axial loads, or combined radial and axial loads, which are called double thrust spherical plain bearings. [0003] Lubrication has an impact on the fatigue life, friction, wear, temperature, vibration, etc. of the bearing. Without normal lubrication, the bearing cannot work. Therefore, good lubrication of...

AI Technical Summary

Problems solved by technology

Since the inner and outer rings of the joint bearing are in spherical contact with a certain radian, it is quite difficult to process the oil groove on the inner arc spherical surface of the bearing casing, which cannot be completed by ordinary lathes and conventional processing methods. The processing of the oil groove must be realized by using auxiliary fixtures

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