CN201295823Y

CN201295823Y - Welding joint of railway vehicle bogie frame

Info

Publication number: CN201295823Y
Application number: CNU2008201868365U
Authority: CN
Inventors: 倪宝成; 董宏达; 方孝钟
Original assignee: CSR Nanjing Puzhen Co Ltd
Current assignee: CRRC Nanjing Puzhen Co Ltd
Priority date: 2008-10-28
Filing date: 2008-10-28
Publication date: 2009-08-26
Anticipated expiration: 2018-10-28

Abstract

The utility model relates to a welding joint of a railway vehicle bogie frame, in particular to a T-shaped welding joint comprising a welding part and a joint part, wherein the joint part is provided with an inclined bevel of 45 degrees, and the bottom of the inclined bevel is in the shape of a rectangular lug boss; a truncated edge is arranged at the top of the rectangular lug boss, the height of the truncated edge is from 1.8 mm to 2.4 mm, the distance from the truncated edge to the bottom of the inclined bevel is from 2.1 mm to 2.3 mm, and a transition arc surface with the radius of 1.5 mm to 1.7 mm is arranged between the rectangular lug boss and the inclined bevel. The bottom shape of the inclined bevel of the welding joint is unique, an inclined bevel space is large so that electrodes can well reach to the root of a welding line, a welding gun can have a certain swinging space, and the prospective depth of fusion can be ensured on the premise that a preset welding line gap is needless; the higher truncated edge can effectively avoid burning through and can have greater strength to bear compression force; and the utility model is suitable for welding manipulators, improves the mechanized degree of welding and is suitable for various railway vehicle bogie frames and underground frames.

Description

Bogies for railway vehicles framework welding point

Technical field

The utility model relates to a kind of bogies for railway vehicles framework welding point, belongs to the bogie frame welding technology field.

Background technology

In conventional bogie welded frame structure, welding point often adopts the T connector of traditional slope mouth, as shown in Figure 1, weldment 1 constitutes T type welding points with the adapter piece 2 that the end has 45 ° of slope mouths 21, and mouth 21 roots in slope have and highly only are the root face 22 that is parallel to weldment 1 side about 0.5mm.This welding point the time produces some technical problems because slope mouth bottom gap is less in welding: the first, and when weld seam required full penetration, electrode need stretch into the groove bottom, caused in the welding process torch swinging limited, and burnt easily, and be not easy through welding; Second, should not directly weld on manipulator, because torch swinging is limited when manipulator welding backing weld seam, and the less ratio of root face is easier to burn, therefore before the manipulator welding, must carry out manual bottoming, so not only increase the working time but also reduced mechanization degree; The 3rd, in the parts assembling constitutes, when parts are compressed,, finally influenced weldquality and spare part outside measurement because thrust is crossed conference and caused root face conquassation or distortion.Therefore the T connector of traditional slope mouth is difficult to guarantee that the full penetration of weld seam requires and design size.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the shortcoming of existing welding point, provides a kind of and can guarantee weld penetration, is convenient to the bogies for railway vehicles framework welding point of mechanization welding.

The technical scheme that the utility model technical solution problem is adopted is as follows: bogies for railway vehicles framework welding point, it is the T type welding point that constitutes by weldment and adapter piece, adapter piece has 45 ° of slope mouths, the bottom of slope mouth has root face, the rectangular boss shape in bottom that it is characterized in that described slope mouth, the top of this rectangular boss is a root face, this width of root face is 1.8～2.4mm, the distance of this root face and mouth bottom, slope is 2.1～2.3mm, has the transition circle cambered surface that radius is 1.5～1.7mm between described rectangular boss and the mouth bottom, slope.

The beneficial effects of the utility model are as follows: the shape uniqueness of adapter piece slope mouth bottom, and make electrode can arrive the root of weld preferably, and Butt welding gun have certain swing space, just can guarantee the fusion penetration of expecting under the weld gap prerequisite need not reserving; Higher root face can effectively prevent to burn and have bigger intensity to bear thrust; The groove space is bigger, is well suited for the welding of manipulator, improves the mechanization degree of welding; The end face of rectangular boss forms a facet, as an assist location face, is convenient to assembly manipulation in assembling process, and the assembly precision height has guaranteed weldquality and accurate spare part outside measurement.This welding point has solved the drawback that traditional slope mouth exists well in welding process, be widely used in multiple bogies for railway vehicles framework and subway framework.

Description of drawings

Fig. 1 is a conventional bogie framework T type welding point schematic diagram.

Fig. 2 is the utility model bogie frame welding point schematic diagram.

The specific embodiment

With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail, but the utility model is not limited to given example.

As shown in Figure 2, among the embodiment, the utility model bogies for railway vehicles framework welding point, be the T type welding point that is made of weldment 1 and adapter piece 2, adapter piece 2 has 45 ° of slope mouths 21, the rectangular boss shape in the bottom of slope mouth 21, the top of this rectangular boss 23 is a root face 22, this root face 22 highly is 2.2mm, and this root face 22 is 2.2mm with the distance of mouth bottom, slope, has the transition circle cambered surface 24 that radius is 1.6mm between described rectangular boss 23 and slope mouth 21 bottoms.

Claims

1, bogies for railway vehicles framework welding point, it is the T type welding point that constitutes by weldment and adapter piece, adapter piece has 45 ° of slope mouths, the bottom of slope mouth has root face, it is characterized in that the rectangular boss shape in bottom of described slope mouth, the top of this rectangular boss is a root face, and this width of root face is 1.8～2.4mm, the distance of this root face and mouth bottom, slope is 2.1～2.3mm, has the transition circle cambered surface that radius is 1.5～1.7mm between described rectangular boss and the mouth bottom, slope.

2, bogies for railway vehicles framework welding point according to claim 1, it is characterized in that the described width of root face is 2.2mm, the distance of this root face and mouth bottom, slope is 2.2mm, has the transition circle cambered surface that radius is 1.6mm between described rectangular boss and the mouth bottom, slope.