Railway passenger car rotating arm machining and positioning tool

Abstract

A railway passenger car rotating arm machining and positioning tool comprises a bottom plate, three horizontal positioning seats are fixedly installed on the bottom plate, a support is fixedly installed on the front side of the horizontal positioning seat located on the front side of the bottom plate, and vertical downward pressing mechanisms are fixedly installed on the upper end face of the support and the outer sides of the two horizontal positioning seats located on the rear side of the bottom plate respectively. A front-back positioning seat is fixedly installed on the rear side of the two horizontal positioning seats on the rear side of the bottom plate, a front-back telescopic oil cylinder is fixedly installed on the support, a piston rod of the front-back telescopic oil cylinder points to the front-back positioning seat, and left-right positioning seats are fixedly installed on the portions, on the front side and the rear side of the front-back positioning seat, of the bottom plate respectively. Left-right telescopic oil cylinders are fixedly installed on the bottom plate and located on the right sides of the left-right positioning seats respectively, and piston rods of the left-right telescopic oil cylinders point to the corresponding left-right positioning seats. The positioning operation is simple, time and labor are saved, the positioning efficiency is high, the positioning structure is firm, machining is accurate, and the product percent of pass is high.

Description

Technical Field

[0001] The utility model relates to a bogie of a rail vehicle, in particular to a positioning tooling for machining a swing arm of a rail vehicle. Background Art

[0002] The function of the bogie of a rail vehicle is to support the car body of the rail vehicle, reduce the vibration of the car body of the rail train, and improve the running stability of the rail train. As an important part of the bogie of a rail vehicle, the swing arm of the rail vehicle mainly functions to connect the wheel set with the side frame or the frame, convert the rolling of the wheel set along the rail into the translational motion of the car body, bear the weight of the car body and transmit the acting force.

[0003] During the machining process of the swing arm of a rail vehicle, it is necessary to position the swing arm of the rail vehicle on the operation platform of the numerical control machine tool. The traditional positioning method for the swing arm of a rail vehicle is as follows: First, the reference line of the swing arm of the rail vehicle is determined and corrected by manual scribing, then the swing arm of the rail vehicle is supported on the operation table of the numerical control machine tool by using a plurality of shims, and finally the bolts on the operation table of the numerical control machine tool are tightened, and the swing arm of the rail vehicle is clamped and fixed by the pressing plate connected to the bolts. The traditional positioning operation for the swing arm of a rail vehicle is complex, time-consuming and laborious, and the positioning efficiency is low; moreover, the positioning structure supported by the shims is not firm, the machining of the swing arm of the rail vehicle is not accurate, and the product qualification rate is low. Summary of the Invention

[0004] The utility model is to solve the above technical problems, and provides a positioning tooling for machining a swing arm of a rail vehicle, with simple positioning operation, time-saving and labor-saving, high positioning efficiency, firm positioning structure, accurate machining and high product qualification rate.

[0005] The technical solution of the utility model is as follows:

[0006] A positioning tooling for machining a swing arm of a rail vehicle includes a bottom plate. The special feature is that: three horizontal positioning seats are fixedly installed on the bottom plate, one of the horizontal positioning seats is located at the front side of the bottom plate, and the remaining two horizontal positioning seats are distributed left and right at the rear side of the bottom plate. A bracket is fixedly installed in front of the horizontal positioning seat located at the front side of the bottom plate. Vertical pressing mechanisms are respectively fixedly installed on the upper end surface of the bracket and on the outer sides of the two horizontal positioning seats located at the rear side of the bottom plate. A front and rear positioning seat is fixedly installed at the rear side of the two horizontal positioning seats located at the rear side of the bottom plate. A front and rear telescopic oil cylinder is fixedly installed on the bracket, and the piston rod of the front and rear telescopic oil cylinder points to the front and rear positioning seat. Left and right positioning seats are respectively fixedly installed on the front and rear sides of the front and rear positioning seat on the bottom plate. Left and right telescopic oil cylinders are respectively fixedly installed on the right sides of the two left and right positioning seats on the bottom plate, and the piston rods of the left and right telescopic oil cylinders point to the corresponding left and right positioning seats.

[0007] Furthermore, the pressing mechanism is a lever oil cylinder, and the swing arm of the rail vehicle is pressed by the pressing plate of the lever oil cylinder.

[0008] Further, fixing seats are fixedly installed on the bottom plate respectively on the right sides of the two left and right positioning seats, and the left and right telescopic oil cylinders are fixedly installed on the corresponding fixing seats.

[0009] Further, two auxiliary support seats distributed left and right are fixedly installed on the rear sides of the left and right positioning seats on the rear side of the bottom plate to improve the stability of the positioning structure of the swing arm of the rail vehicle.

[0010] The beneficial effects of the present utility model are as follows:

[0011] Since three horizontal positioning seats are fixedly installed on the bottom plate, one horizontal positioning seat is located on the front side of the bottom plate, and the remaining two horizontal positioning seats are distributed left and right on the rear side of the bottom plate. A bracket is fixedly installed on the front side of the horizontal positioning seat on the front side of the bottom plate. Vertical pressing mechanisms are fixedly installed on the upper end surface of the bracket and on the outer sides of the two horizontal positioning seats on the rear side of the bottom plate respectively. A front and rear positioning seat is fixedly installed between the two horizontal positioning seats on the rear side of the bottom plate. A front and rear telescopic oil cylinder is fixedly installed on the bracket, and the piston rod of the front and rear telescopic oil cylinder points to the front and rear positioning seat. Left and right positioning seats are fixedly installed on the front and rear sides of the front and rear positioning seat on the bottom plate respectively. Left and right telescopic oil cylinders are fixedly installed on the right sides of the two left and right positioning seats on the bottom plate respectively, and the piston rods of the left and right telescopic oil cylinders point to the corresponding left and right positioning seats. The swing arm of the rail vehicle is positioned up and down through the horizontal positioning seats and the pressing mechanisms, positioned front and rear through the front and rear positioning seat and the front and rear telescopic oil cylinder, and positioned left and right through the left and right positioning seats and the left and right telescopic oil cylinders. The positioning structure is firm, the processing is precise, and the product qualification rate is high. And the traditional method of manually scribing to determine the reference line and correcting the positioning is cancelled. The positioning operation is simple, time-saving and labor-saving, and the positioning efficiency is high. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present utility model;

[0013] Figure 2 is the use state diagram of the present utility model;

[0014] In the figure: 1-bottom plate, 2-horizontal positioning seat, 3-bracket, 4-lever oil cylinder, 5-front and rear positioning seat, 6-front and rear telescopic oil cylinder, 7-left and right positioning seat, 8-fixing seat, 9-left and right telescopic oil cylinder, 10-auxiliary support seat. Detailed Embodiment

[0015] Such as Figure 1As shown in the figure, a positioning tooling for the machining of the swing arm of a rail passenger car includes a bottom plate 1. Three horizontal positioning seats 2 are fixedly installed on the bottom plate 1. One of the horizontal positioning seats 2 is located at the front side of the bottom plate 1, and the other two horizontal positioning seats 2 are distributed left and right at the rear side of the bottom plate 1. A bracket 3 is fixedly installed on the front side of the horizontal positioning seat 2 located at the front side of the bottom plate 1. Vertical lever cylinders 4 are respectively fixedly installed on the upper end surface of the bracket 3 and on the outer sides of the two horizontal positioning seats 2 located at the rear side of the bottom plate 1. A front and rear positioning seat 5 is fixedly installed on the rear side of the two horizontal positioning seats 2 located at the rear side of the bottom plate 1. A front and rear telescopic cylinder 6 is fixedly installed on the bracket 3, and the piston rod of the front and rear telescopic cylinder 6 points to the front and rear positioning seat 5. Left and right positioning seats 7 are respectively fixedly installed on the front and rear sides of the front and rear positioning seat 5 on the bottom plate 1. Fixed seats 8 are respectively fixedly installed on the right sides of the two left and right positioning seats 7 on the bottom plate 1. Left and right telescopic cylinders 9 are respectively fixedly installed on the two fixed seats 8, and the piston rods of the left and right telescopic cylinders 9 point to the corresponding left and right positioning seats 7. Two auxiliary support seats 10 distributed left and right are fixedly installed on the rear side of the left and right positioning seats 7 located at the rear side of the bottom plate 1.

[0016] As Figure 2 shown in the figure, during the positioning operation, first place the swing arm of the rail passenger car on the horizontal positioning seat 2 and the auxiliary support seat 10, then start the front and rear telescopic cylinder 6, and the piston rod of the front and rear telescopic cylinder 6 will push the swing arm of the rail passenger car against the front and rear positioning seat 5. Then start the left and right telescopic cylinders 9, and the piston rods of the left and right telescopic cylinders 9 will push the swing arm of the rail passenger car against the left and right positioning seats 7. Finally, start the lever cylinder 4, and the pressing plate of the lever cylinder 4 will press down the swing arm of the rail passenger car. The swing arm of the rail passenger car is positioned up and down by the pressing plate of the horizontal positioning seat 2 and the lever cylinder 4, positioned front and rear by the front and rear positioning seat 5 and the front and rear telescopic cylinder 6, and positioned left and right by the left and right positioning seats 7 and the left and right telescopic cylinders 9.

[0017] The above are only specific embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rail passenger car swing arm processing and positioning tool, including a bottom plate, characterized in that : Three horizontal positioning seats are fixedly installed on the base plate, one of which is located on the front side of the base plate, and the other two are distributed on the left and right sides of the rear side of the base plate; a bracket is fixedly installed on the front side of the horizontal positioning seat located on the front side of the base plate, and vertical pressing mechanisms are fixedly installed on the upper end surface of the bracket and on the outer sides of the two horizontal positioning seats located on the rear side of the base plate; front and rear positioning seats are fixedly installed on the rear sides of the two horizontal positioning seats located on the rear side of the base plate; front and rear telescopic cylinders are fixedly installed on the bracket, and the piston rods of the front and rear telescopic cylinders point to the front and rear positioning seats; left and right positioning seats are fixedly installed on the front and rear sides of the front and rear positioning seats on the base plate, and left and right telescopic cylinders are fixedly installed on the right sides of the two left and right positioning seats on the base plate, and the piston rods of the left and right telescopic cylinders point to the corresponding left and right positioning seats.

2. The rail vehicle swing arm processing and positioning tool according to claim 1, characterized in that: The pressing mechanism is a lever cylinder.

3. The rail vehicle swing arm processing and positioning tool according to claim 1, characterized in that: Fixed seats are respectively fixedly installed on the right sides of the two left and right positioning seats on the bottom plate, and the left and right telescopic oil cylinders are fixedly installed on the corresponding fixed seats.

4. The railway passenger car swing arm processing and positioning tool according to claim 1, characterized in that: Two auxiliary support seats distributed left and right are fixedly installed on the rear sides of the left and right positioning seats located at the rear side of the bottom plate.

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