CN202388002U

CN202388002U - Center sill supporting plate drill jig

Info

Publication number: CN202388002U
Application number: CN201120440114XU
Authority: CN
Inventors: 张宇; 刘云恒; 庞建新; 杨春; 吴琼; 郑延飞; 门连浩; 牛丽; 夏玉光
Original assignee: Baotou Beifang Chuangye Co Ltd
Current assignee: Baotou Beifang Chuangye Co Ltd
Priority date: 2011-11-03
Filing date: 2011-11-03
Publication date: 2012-08-22
Anticipated expiration: 2021-11-03

Abstract

The utility model relates to a center sill supporting plate drill jig, which comprises a drill plate and is characterized in that the drill plate is of a left-and-right symmetrical structure. The drill plate can cross two wing faces of center sill steel in a shape of Chinese character 'yi'. Drill bush holes corresponding to center sill supporting plate holes are arranged at two ends of the drill plate, bushings and replaceable drill bushes are arranged on the drill bush holes, fixing mold plate holes are arranged on two wings of the drill plate, a hook-shaped bolt is connected onto the fixing mold plate holes through nuts, and a locating pin hole is arranged on the drill plate. The center sill supporting plate drill jig has the advantages that the drill jig crossing the two wing faces of the center sill guarantees accuracy of gas size 454+/-1 of the supporting plate holes on the two wing faces of the center sill, and quality pass percentage of primary assembling of the supporting plate and the center sill through the bolt is greatly increased. The generality is strong, by replacing the replaceable drill bushes, the drill jig can be applied to vehicles of various models and has good applicability. Manufacture cost is saved, labor intensity is reduced, a production cycle of products is shortened, and assembling quality of the supporting plate is guaranteed.

Description

Center frame support twist drill mould

Technical field:

The utility model relates to a kind of center frame support twist drill mould, and particularly a kind of railway freight-car center frame support twist drill mould belongs to mould applications.

Background technology:

Produce railway freight-car center frame support plate hole adopts radial drill to bore system at present; Supporting plate hole site size is to guarantee through central sill appearance and size, because the central sill inner chamber has the tolerance that goes up poor+1, allowance below nominal size-2, two Yi shape steels have certain welding deformation behind assembly welding simultaneously; Adopt the single drill jig system of boring to guarantee that the supporting plate hole is correct in central sill both wings interplanar distance 454 ± 1 sizes; Supporting plate is difficult during with bolts assemblies after causing, and situation about can't assemble, and has influenced the quality and the efficiency of assembling of car load.

Summary of the invention:

The purpose of the utility model provides a kind of brill system precision height, applicability center frame support twist drill mould preferably.

The purpose of the utility model realizes in the following manner:

The utility model comprises bushing plate; It is characterized in that: bushing plate is the left-right symmetric structure, and bushing plate can be provided with the drill bushing hole corresponding with the center frame support plate hole across two aerofoils of the B-mode steel of central sill at the bushing plate two ends; Lining and renewable bushing are housed on the drill bushing hole; Be provided with the fixed die plate hole at the bushing plate both wings, be connected with the hook bolt with nut on the fixed die plate hole, on bushing plate, be provided with dowel hole.

The utility model has the advantages that: across the drill jig of central sill two aerofoils, guaranteed the correctness of supporting plate hole, supporting plate and central sill are improved with an assembly quality qualification rate of bolts assemblies greatly in central sill both wings interplanar distance size 454 ± 1.Highly versatile through changing renewable bushing, can be used in multiple vehicle, and good applicability is arranged.Practice thrift manufacturing cost, reduced labour intensity, shortened the production cycle of product, guaranteed the assembly quality of supporting plate.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A--A portion cutaway view of Fig. 1;

Fig. 3 is the B--B portion cutaway view of Fig. 1.

The specific embodiment:

With reference to accompanying drawing, the utility model comprises bushing plate 1, and bushing plate 1 is the left-right symmetric structure; Bushing plate 1 can be provided with the drill bushing hole corresponding with the center frame support plate hole at bushing plate 1 two ends across two aerofoils of the B-mode steel of central sill, and lining 9 and renewable bushing 8 are housed on the drill bushing hole; Fastening with screw 7, be provided with the fixed die plate hole at the bushing plate both wings, be connected with hook bolt 3 with nut 5, packing ring 6 on the fixed die plate hole; The hole of passing bushing plate through hook bolt 3 is connected with nut 5; Thereby two aerofoils of be fixedly clamped bushing plate 1 and the B-mode steel of central sill are provided with dowel hole 10, installing and locating pin 2 in the dowel hole 10 on bushing plate 1; Block the inboard of the B-mode steel of central sill through alignment pin 2 and come bushing plate 1 is positioned, also be provided with handle 4 at bushing plate 1 two ends.The utility model cooperates through renewable bushing 8 and lining 9, and system is bored in the supporting plate hole, through changing renewable bushing 8 and lining 9, can on the central sill supporting plate of multiple vehicle, use, and precision height, applicability are better.

Claims

1. a center frame support twist drill mould comprises bushing plate, it is characterized in that: bushing plate is the left-right symmetric structure; Bushing plate can be across two aerofoils of the B-mode steel of central sill; Be provided with the drill bushing hole corresponding at the bushing plate two ends, lining and renewable bushing are housed on the drill bushing hole, be provided with the fixed die plate hole at the bushing plate both wings with the center frame support plate hole; Be connected with the hook bolt with nut on the fixed die plate hole, on bushing plate, be provided with dowel hole.