Thin-walled barrel end cover assembly and assembling method

Abstract

The invention provides a thin-walled barrel end cover assembly and an assembling method. The thin-walled barrel end cover assembly comprises a barrel body and an end cover, and is characterized in that an annular shallow groove is formed in the inner wall of the position, close to an end opening, of the barrel body along the circumference, and a long through hole is formed along the bottom face ofthe shallow groove; and a bayonet pin groove is formed in the end cover, and a blind hole is formed in the groove bottom of the bayonet pin groove in the radial direction. A boss for fixing is arranged at one end of a C-shaped bayonet pin body, a boss for rotating prevention is arranged at the other end of the C-shaped bayonet pin body, and the width of the C-shaped bayonet pin body is slightly smaller than the groove width of the shallow groove and the groove width of the bayonet pin groove. The height of the boss for fixing is slightly smaller than the depth of the blind hole, and the length of the boss for rotating prevention is slightly smaller than the length of the long through hole in the barrel body. After the barrel body, a C-shaped bayonet pin and the end cover are assembled, the end, with the bayonet pin groove, of the end cover stretches into the barrel body, the C-shaped bayonet pin body is embedded into the bayonet pin groove and the shallow groove, the boss for fixing is inserted into the blind hole, and the boss for rotating prevention stretches out of the long through hole in the barrel body. The barrel body and the end cover of a thin-walled barrel can be firmlyconnected without welding, mounting is convenient, deformation is avoided, and cost is low.

Description

technical field [0001] The invention belongs to the technical field of metal machining and production, and relates to a tube end cover assembly and an assembly method thereof, in particular to a thin-walled tube end cover assembly and an assembly method. Background technique [0002] In the field of mechanical equipment manufacturing, cylindrical parts are often used, such as the rollers on various equipment. In order to reduce the weight, hollow round tubes are used as the shaft body, and end caps are added to both ends, and then the shaft is assembled on the end caps to become a roller. . At present, the connection between the round pipe and the end cap is usually carried out by welding or threaded connection or air-to-air screw: 1. The welding method requires welding equipment and welding rods, and is easy to deform and needs to be straightened later. The process is complicated and the cost is high; 2. . Thread connection is suitable for thick-walled cylinders. For thin-...

AI Technical Summary

Problems solved by technology

At present, the connection between the round pipe and the end cap is usually carried out by welding, threaded connection or air-to-air screw: 1. The welding method requires welding equipment and welding rods, and is easy to deform, and needs to be straightened in the later stage. The process is complicated and the cost is high; 2. . Thread connection is suitable for thick-walled cylinders. For thin-walled cylinders, it is necessary to weld the flange first, and then use a lathe to turn the wire. The deformation after welding is difficult to control; 3. The air seam method needs to be fixed after the thread is fixed.

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