Welding Technology of Rail Vehicle Frame with End Beam
A rail vehicle and frame technology, which is applied to vehicle parts, welding equipment, manufacturing tools, etc., can solve the problems of unguaranteed processing size, many frame adjustments, and inconsistent benchmarks, so as to improve assembly welding accuracy and improve production efficiency and product qualification rate, the effect of improving assembly accuracy
Active Publication Date: 2021-10-15
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology
[0004] In order to solve the technical problems that the end beams, cross beams and side beams of the frame cannot be unified when they are assembled, resulting in many times and difficulties in frame repairs, the processing size cannot be guaranteed after welding, and the failure rate is high, the invention provides a track Welding Technology of Vehicle Frame with End Beam
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[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0047] Such as Figure 5 to Figure 10 Shown, the assembly welding process of rail vehicle belt end beam frame of the present invention comprises the steps:
[0048] Step 1. One-step welding of the frame 1: first weld the two longitudinal beams 1-4 and the two beams 1-2 together, and then insert the two beams 1-2 into the middle of the two side beams 1-1 respectively, Assemble the two side beams 1-1 and the two beams 1-2 together, and then complete the welding of the two side beams 1-1 and the two beams 1-2 on the welding positioner to form a frame assembly;
[0049] Step 2. Determination of the XY plane of frame 1 and cold adjustment and repair of frame 1, specifically including the following steps:
[0050] Step 2.1. Reversely place the one-step assembly of the frame described in step 1 and fix it on the scribing platform. According to the traditional asse...
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The assembly welding process of the rail vehicle with end beam frame relates to the manufacturing technology field of rail passenger car bogie frame, which includes: one-step assembly welding of the frame, determination of the XY plane of the frame, and cold adjustment of the frame, the X-axis centerline of the frame and The marking of the center line of the Y axis and the thermal adjustment of the frame, the processing of the size of the two end beams, the welding of the two end beams and the frame in one step, and finally the Z axis reference line D, the X axis center line and the Y axis The shaft center line is the unified benchmark, and combined with the theoretical dimensions of the drawings, the various hangers on the frame are marked and positioned and assembled to complete the assembly welding process of the frame. The invention unifies the datum of the frame assembly and welding as the Z-axis reference line D, which not only improves the assembly accuracy but also facilitates the guarantee of the assembly size. In this process, the frame is assembled and welded in steps, and the benchmarks of each step are unified by tooling, which increases the controllability of each dimension and improves the welding accuracy.
Description
technical field [0001] The invention relates to the technical field of manufacturing rail vehicle bogie frames, in particular to a welding process for rail vehicle frames with end beams. Background technique [0002] Such as Figure 1 to Figure 4 As shown, the bogie frame 1 of the new B-type car is a welded frame with an end beam structure, and the frame 1 includes two box-shaped side beams 1-1, two cross beams 1-2, two end beams 1-3 and two Longitudinal beams 1-4, each side beam 1-1 is provided with an air spring seat plate 1-1-2 at the midline position of the upper cover plate, and the middle part of each side beam 1-1 lower cover plate is symmetrically provided with two inner sides A series of spring seats 1-1-1, each side beam 1-1 is provided with an outer side spring seat 1-1-5 at both ends of the lower cover plate, and the two ends of each side beam 1-1 Each end beam connecting seat 1-1-4 is provided, and two side beam end positioning blocks 1-1-3 are arranged on the ...
Claims
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IPC IPC(8): B23K31/02B23K37/04B23K37/047
CPCB23K31/02B23K37/0443B23K37/047B23K2101/006
Inventor 宋佳曈张林儒何岩高志波
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD