Method for processing middle pull rod end hinge opening of railway wagon brake and tool thereof
A railway freight car, tie rod end technology, applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of easy generation of waste, frequent force, difficult positioning, etc., to save production materials and improve production efficiency.
Active Publication Date: 2012-07-04
CRRC SHIJIAZHUANG CO LTD
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Problems solved by technology
[0002] The center tie rod of the railway wagon braking system is an important part used to connect the brake air cylinder and the brake beam, and is used to transmit the tension and pressure of the brake cylinder to the brake beam. The moving beam is hinged, and the middle tie rod is an important force-bearing part, and the force is relatively frequent, so the middle tie rod is generally produced by an integral forging process, and then machined after forging. The existing hinge openings at both ends of the middle tie rod are processed by milling , due to the large hinge opening, all the middle material will be milled into chips after milling, resulting in a certain waste of material, and the middle tie rod is directly fixed on the milling machine table during processing, which has the problem of difficult positioning and is easy to produce waste
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[0020] A method for processing a hinge opening at the end of a tie rod in the braking of a railway freight car, comprising the following steps:
[0021] 1) Drill the positioning hole, drill the positioning hole 8-1 at the termination position of the hinge opening at the end of the middle tie rod 8 (such as Figure 5 shown), the diameter of the positioning hole 8-1 is equal to the processing width of the hinge opening 8-2;
[0022] 2) Fix the middle tie rod, fix and clamp the middle tie rod 8 on the workbench of the vertical band sawing machine through the tooling, manipulate the hydraulic cylinder of the vertical band sawing machine to rise, drive the end plate 6 and the two cross bars 4 to rotate, The pull rod is placed between the two steel plates that form the positioning plate 2, the axis of the middle tie rod 8 is parallel to the plane where the vertical section of the saw blade of the vertical band sawing machine is located, and the axis of the positioning hole 8-1 is pa...
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The invention discloses a method for processing a middle pull rod end hinge opening of a railway wagon brake and a tool thereof. The processing method comprises the following steps of: 1) drilling a positioning hole; 2) fixing a middle pull rod; and 3) sawing a hinge opening. The tool used in the processing of the middle pull rod end hinge opening of the railway wagon brake comprises a base, a positioning plate, a pressing device and a clamping device connected with a pressure plate of a vertical band sawing machine. The method disclosed by the invention has the advantages that: the middle pull rod end hinge opening is processed by adopting a sawing method, the material on the middle part of the opening is sawn into a complete block, and the sawn material can be reused, so that productionmaterials are effectively saved; and the tool adopted in the method is used with the vertical band sawing machine in a matching way, the clamping device of the tool is clamped with the pressure plateat the end of a vertical hydraulic cylinder of the vertical band sawing machine, and positioning and compaction of the middle pull rod can be realized by operating the hydraulic cylinder of the vertical band sawing machine so as to effectively improve the production efficiency.
Description
technical field [0001] The invention relates to a method for processing railway wagon accessories and an auxiliary device thereof, in particular to a method for processing a hinge opening at the end of a tie rod in braking a railway wagon and tooling thereof. Background technique [0002] The middle tie rod of the railway freight car braking system is an important part used to connect the brake air cylinder and the brake beam, and is used to transmit the tension and pressure of the brake cylinder to the brake beam. The moving beam is hinged, and the middle tie rod is an important force-bearing part, and the force is relatively frequent, so the middle tie rod is generally produced by an integral forging process, and then machined after forging. The existing hinge openings at both ends of the middle tie rod are processed by milling , due to its large hinge opening, after milling, all the middle material will be milled into chips, resulting in a certain amount of material waste...
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IPC IPC(8): B23P17/00B23Q3/06
Inventor 彭惠杰
Owner CRRC SHIJIAZHUANG CO LTD