Assembly sample rod for mounting base of weight measuring mechanism of railway vehicle and assembly process thereof

Abstract

The invention discloses an assembly process of an assembly sample rod machine for a mounting base of a weight measuring mechanism of a railway vehicle. The assembly sample rod comprises a first sample rod assembly and a second sample rod assembly, wherein the first sample rod assembly comprises an upper center pan locating pin, a connecting rod and a baseplate, the second sample rod assembly comprises a support rod, two transverse locating blocks for the support rod are arranged on the lower end of the support rod, two transverse locating blocks for the connecting rod are arranged on the upper end of the support rod, a support block is arranged at one side of the support rod, when the first sample rod assembly and the second sample rod assembly are assembled, the baseplate of the first sample rod assembly is placed on the support block of the second sample rod assembly. By adopting integrated positioning of the first sample rod assembly and the second sample rod assembly, the location dimension of the mounting base of the weight measuring mechanism is determined, so that the assembly efficiency and the assembly precision are effectively improved, the quality of products is improved, the repair rate is reduced, the one-time handover percent of pass is improved, and the assembly sample rod for the mounting base of the weight measuring mechanism of the railway vehicle and the assembly process thereof are suitable for production of all kinds of state railway vehicles provided with the mounting base of the weight measuring mechanism.

Description

technical field [0001] The invention belongs to a railway vehicle assembly technology, in particular to a railway vehicle weight measuring mechanism mounting base assembly sample rod and its assembly process. Background technique [0002] The existing national railway trucks are basically equipped with mounting seats for weighing mechanisms. Due to the large size, complicated operation, and inconvenient use of the integrated modular sample rods, the grouping method has been used for grouping by marking lines. This grouping method not only It reduces the pairing efficiency and greatly affects the pairing accuracy, and also increases the possibility of repair. [0003] like figure 1 As shown, it is the pairing position of the mounting seat of the P70 weighing mechanism. The existing pairing method requires multiple markings to determine the positioning size. After the assembly is completed, the bolts are removed, and the assembly template 7 is taken out. The operation is cu...

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Problems solved by technology

[0002] The existing national railway trucks are basically equipped with mounting seats for weighing mechanisms. Due to the large size, complicated operation and inconvenient use of the integrated modular sample rod, it has been used The way of marking and pairing is carried out. This pairing method not only reduces the efficiency of the pairing, but also greatly affects the accuracy of the pairing, and also increases the possibility of repairing.

[0003] such as As shown in Figure 1, it is the alignment position of the mounting seat of the P70 weighing mechanism. The existing alignment method requires multiple markings to determine the positioning size. On the pairing template 7, remove the bolts after the pairing is completed, and take out the pairing template 7. The operation is cumbersome, and multiple markings are likely to produce cumulative tolerances, which will affect the accurate positioning of the workpiece. The place indicated by 8 in the figure is the marking Location

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