Device for machining end of connection shaft of bullet train unit and use method of device

Abstract

The invention provides a device for machining the end of a connection shaft of a bullet train unit. The device comprises a bottom plate; positioning blocks are symmetrically arranged on the bottom plate; bulge parts are arranged at two ends of the positioning blocks; each bulge part is provided with a slope; the slopes of the two positioning blocks are opposite; the included angle formed by the two slopes is same as that of the inclined plane of the connection shaft; one end surface of each positioning block is provided with a rotatable stop dog; a support plate is arranged between the bulge parts at the same side of the two positioning blocks; the bottom plate is connected with a pressure plate by a bolt. The invention also provides a use method of the device. According to the device for machining the end of the connection shaft of the bullet train unit and the use method of the device, the labor intensity of an operator is reduced, and the machining efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a device for processing the end of a connecting shaft of an EMU and a method for using the same. Background technique [0002] Figure 1a It is a structural schematic diagram of a connecting shaft part used by a motor train unit; Figure 1b for Figure 1a The schematic diagram of the A-direction structure, see Figure 1a-1b As shown, at present, the total length of the connecting shaft parts used in the EMUs produced by my country South Locomotive Group is 350mm, and it has two symmetrically arranged ends, and each end is provided with a diameter D1 of There are two planes 11 (i.e. flat ends) with a distance d1 of 46±0.1mm alternately distributed on each journal, and two inclined planes with an included angle α of 11°25′16″. Plane 12 (slanted end), the inscribed circle diameter D2 of the two inclined planes 12 is φ41.692±0.1mm. [0003] Each connecting shaft part needs to process a t...

AI Technical Summary

Problems solved by technology

[0003] Each connecting shaft part needs to process a total of eight profiles of the two ends (that is, the above-mentioned flat end and inclined end). The existing processing method is to process one of the profiles separately each time, that is, to process During the process, each connecting shaft part needs to be clamped eight times, and the size of the processing profile needs to be marked out in advance by the liner, so the processing labor intensity of the operator is very high, and the production efficiency is also very low.

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