Modularization stretch bending clamping fixture for railway vehicle carline
A rail vehicle and modular technology, which is applied in the field of metal bending and forming, can solve the problems of poor section size of profiles, heavy bending tires, and high production costs, and achieve the effects of weight reduction, labor intensity reduction, and material saving.
Inactive Publication Date: 2012-08-22
JILIN RUIHENG MACHINERY
View PDF8 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The invention relates to a rail vehicle roof beam modularized stretch-bending mold, which aims to solve the defects of traditional stretch-bending molds such as heavy weight, clumsy operation, and high production cost, and at the same time more effectively control the easy occurrence of profiles in the stretch-bending process. Problems such as warping deformation and cross-sectional size difference
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The content of the present invention and its specific implementation will be further described below in conjunction with the examples shown in the accompanying drawings.
[0017] According to the profile and cross-sectional size data of the roof bending beam member, the size of the integrated stretch-bending tire mold surface is designed. Reserve a certain machining allowance and then cut and blank the material to make the mold blank. After the rough machining, the blank is processed into the mold surface by CNC, and then the integrated mold surface is cut into two symmetrical mold surfaces, that is, The mold surface of the one-piece modular stretch-bending tire can be processed into a variety of different sizes and cross-sections, but the lower end of the mold surface is designed in a unified standard according to the size matched with the base module. The base module is designed with a unified specification. The same base can carry a variety of different mold surfaces...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a modularization stretch bending clamping fixture for a railway vehicle carline and belongs to the field of metal bending forming. The modularization stretch bending clamping fixture comprises a base module, a clamping fixture left modular surface, a clamping fixture right modular surface, a locating bolt and a limiting iron block. The base module is designed into a unified specification and fixed on an operating platform, lower ends of the left and right modular surfaces are installed with the base module in a parallel and matching mode, according to requirements of controlling forming accuracy in actual operations, the distance between the left and right modular surfaces is slightly adjusted, after the bolt is unscrewed, the modular surfaces are moved to an appropriate position, the limiting iron block in a proper size is additionally installed between the two modular surfaces to locate, after the forming is completed, the clamping fixture modular surfaces are replaced by clamping fixture modular surfaces formed by stretch bending by another part, and further the stretch bending operation is performed. By means of the modularization stretch bending clamping fixture for the railway vehicle carline, problems of high cost caused by one clamping fixture formed by one part, high labor intensity caused by the clamping fixture replacement and the like are solved, the work efficiency is increased, the production cost is lowered, simultaneously defects of warping distortion, poor overall size and the like of carline members are effectively overcome, and the modularization stretch bending clamping fixture for the railway vehicle carline has an extremely important practical use value.
Description
Technical field: [0001] The invention relates to a modularized stretch-bending mold used for stretch-bending forming of a curved beam on a roof of a rail vehicle, belonging to the field of metal bending forming. Background technique: [0002] Rail transit is one of the most important modes of transportation in my country. Compared with traditional transportation methods, rail transportation has huge advantages in environmental protection, energy consumption and transportation efficiency, and has a huge market and strong demand. [0003] The car body is an important load-bearing part of a rail vehicle. In the manufacturing process of a rail vehicle, many car body parts such as roof beams must be formed by stretch bending, which is formed by stretching and bending profiles on a stretch bending mold. The structure of the curved roof beam is symmetrical, generally composed of three arcs, a large arc in the middle, and two small arcs symmetrically on both sides. The stretch bend...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B21D7/04
Inventor 马丽刘杨马东升
Owner JILIN RUIHENG MACHINERY