Tenon and groove processing device for compressor disc

Abstract

The invention discloses a mortise machining device for disks of air compressors. The mortise machining device comprises a cone, an elastic bushing and a mandrel driving the cone to clamp the elastic bushing. The side surface of the cone is a first bevel; the bushing comprises a cone fixing part and a groove fixing part fixedly connected with the cone; the cone fixing part is provided with a second bevel fitting with the first bevel; the groove fixing part is provided with a groove matching surface matched with an internal spline groove. According to the mortise machining device for disks of air compressors, the cone moves along the direction close to the elastic bushing so as to drive the elastic bushing to expand to be matched with the internal spline groove, and thus, the mortise machining device is in close fit with the internal spline; in other words, the elastic bushing compresses the internal spline through the elastic bushing, which is favorable for realizing more-fixed angular positioning, eliminating clearance, reducing circumference moving of the disks and effectively improving machining quality of mortises.

Description

technical field [0001] The invention relates to the technical field of groove body processing, in particular to a tenon and groove processing device for a wheel disk of a compressor. Background technique [0002] A compressor is a component that uses high-speed rotating blades to do work on the air to increase the air pressure. The compressor includes stationary blades, moving blades and a wheel disc. Tenon and groove, the tenon and groove on the outside of the wheel is a dovetail structure, one side of the end of the tenon and groove is grate teeth, the inside of the wheel is a groove structure with internal splines, and the tenon and groove are processed by a tenon and groove processing device. [0003] Such as figure 1 and figure 2 As shown, the traditional tenon and groove processing device of a compressor includes a mandrel 03, a wedge 01 and two tooth pins 04. The two side surfaces of the inner spline abut against the side surfaces of both sides of the inner spline...

AI Technical Summary

Problems solved by technology

[0004] However, due to the deviation of the gear pin 04 in the machining process, the gear pin 04 cannot fully contact with the internal spline. Due to the large thickness of the tenon and groove of the compressor wheel disc, the broaching force is relatively large, resulting in the occurrence of wheel disc damage during the processing process. Circumferential movement, resulting in out-of-tolerance position and size of the tenon and groove, thereby reducing the processing quality of the tenon and groove

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