Punching system for railway vehicle camber beams

Abstract

The invention discloses a punching system for railway vehicle camber beams and belongs to the field of railway vehicle camber beam manufacturing equipment. The punching system comprises a camber beam punching device, two long guide rails, two camber beam end portion clamping devices which are arranged in a left-and-right mirror symmetrical manner, two camber beam span sizing devices which are arranged in a left-and-right mirror symmetrical manner, and two camber beam clamping angle adjusting devices which are arranged in a left-and-right mirror symmetrical manner. A plurality of structures of male die quick-changing clamping blocks of end portion clamping mechanisms of the punching system, a plurality of structures of female die quick-changing clamping blocks of the end portion clamping mechanisms of the punching system and a plurality of first step supporting faces and second step supporting faces with height differences of a supporting block are prefabricated according to cross section outlines of the different camber beams, and therefore the punching system can achieve quick changing according to specific requirements. Male die ejector pins, material returning sleeves and center hole guide pipes can also be correspondingly changed and adjusted according to hole diameter requirements of different camber beam through holes, therefore re-improvement of other universal structures can be avoided for the multifunctional machining system, and the research and development cost is saved, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of rail vehicle curved beam manufacturing equipment, and in particular relates to a punching system for rail vehicle curved beams. Background technique [0002] The frame of rail passenger cars uses many types of curved beams, most of which are formed by drawing and bending profile blanks. Although the profile blank after stretch bending has the basic curved profile of the bent beam, it still needs to further open a central hole at the arc vertex M of the bent beam. [0003] like Figure 1 to Figure 2 As shown, a bent beam 24 of a B-shaped multi-step comprises a first riser 24-1 of a bend, a first step 24-2 of a bend, a second riser 24-3 of a bend and a second step 24-2 of a bend 4. According to the design requirements of the B-shaped curved beam 24, it is necessary to open a curved beam through hole 24-3-1 in the center of the X-direction symmetry of the second vertical plate 24-3 of the curved beam, and it is neces...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing punching operation of opening a center hole at the arc vertex M of the curved beam, it needs to carry out multiple measurement and positioning processes such as manual marking and proofing, and finally use a vertical drilling machine to complete it.

However, the multi-channel manual work causes the technical problems of large cumulative errors in the process, poor punching positioning accuracy, long operation technology preparation period, and low production efficiency. The invention provides a punching system for curved beams of railway vehicles.

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