Railway passenger car rotating arm hoop machining and positioning tool

Abstract

A positioning tool for machining a rocker arm hoop of a railway passenger car comprises a bottom plate, a centering clamp is fixedly installed on the bottom plate, two clamping jaws of the centering clamp move left and right relatively, horizontal positioning seats are fixedly installed on the bottom plate and located on the left side and the right side of the centering clamp respectively, and downward pressing mechanisms are fixedly installed on the bottom plate and located on the front side and the rear side of the centering clamp respectively. Front and rear positioning seats are fixedly installed on the left side and the right side of the pressing mechanism on the rear side on the bottom plate respectively, telescopic oil cylinders are fixedly installed on the left side and the right side of the pressing mechanism on the front side on the bottom plate respectively, and piston rods of the telescopic oil cylinders point to the corresponding front and rear 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 processing positioning tooling for a swing arm hoop of a rail vehicle. Background Art

[0002] The function of a 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 main function of the swing arm hoop of the rail vehicle is to connect the wheel set with the side frame or the frame, convert the rolling of the wheel set along the rail into the translation of the car body, bear the weight of the car body and transmit the acting force.

[0003] During the processing of the swing arm hoop of a rail vehicle, it is necessary to position the swing arm hoop of the rail vehicle on the operation platform of the numerical control machine tool. The traditional positioning method for the swing arm hoop of a rail vehicle is as follows: First, determine the reference line of the swing arm hoop of the rail vehicle through manual scribing and correct it. Then, use multiple shims to support the swing arm hoop of the rail vehicle on the operation table of the numerical control machine tool. Finally, tighten the bolts on the operation table of the numerical control machine tool, and clamp and fix the swing arm hoop of the rail vehicle through the pressing plate connected to the bolts. The traditional positioning operation for the swing arm hoop 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 processing of the swing arm hoop 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 processing positioning tooling for a swing arm hoop of a rail vehicle, with simple positioning operation, time-saving and labor-saving, high positioning efficiency, firm positioning structure, accurate processing and high product qualification rate.

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

[0006] A processing positioning tooling for a swing arm hoop of a rail vehicle includes a bottom plate. The special feature is that a centering clamp is fixedly installed on the bottom plate, and the two clamping jaws of the centering clamp move relatively left and right. Horizontal positioning seats are fixedly installed on the bottom plate on the left and right sides of the centering clamp respectively. Pressing mechanisms are fixedly installed on the bottom plate on the front and rear sides of the centering clamp respectively. Front and rear positioning seats are fixedly installed on the bottom plate on the left and right sides of the pressing mechanism at the rear side respectively. Telescopic oil cylinders are fixedly installed on the bottom plate on the left and right sides of the pressing mechanism at the front side respectively, and the piston rods of the telescopic oil cylinders point to the corresponding front and rear positioning seats.

[0007] Further, the pressing mechanism is a vertical lever oil cylinder, and the pressing plates of the two lever oil cylinders point relatively.

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

[0009] Further, auxiliary support seats are respectively and fixedly installed on the bottom plate between the centering clamp and the two downward pressing mechanisms, improving the stability of the positioning structure of the swing arm hoop of the rail vehicle.

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

[0011] Since the centering clamp is fixedly installed on the bottom plate, the two clamping jaws of the centering clamp move relatively left and right. Horizontal positioning seats are respectively and fixedly installed on the left and right sides of the centering clamp on the bottom plate. Downward pressing mechanisms are respectively and fixedly installed on the front and rear sides of the centering clamp on the bottom plate. Front and rear positioning seats are respectively and fixedly installed on the left and right sides of the downward pressing mechanism located at the rear side on the bottom plate. Telescopic cylinders are respectively and fixedly installed on the left and right sides of the downward pressing mechanism located at the front side on the bottom plate, and the piston rods of the telescopic cylinders point to the corresponding front and rear positioning seats. The swing arm hoop of the rail vehicle is positioned up and down through the horizontal positioning seats and the pressing plates of the tooth cleaning mechanism, positioned left and right through the two clamping jaws of the centering clamp, and positioned front and rear through the front and rear positioning seats and the telescopic cylinders. The positioning operation is simple, time-saving and labor-saving, with high positioning efficiency. Moreover, the traditional method of manually drawing a reference line and correcting the positioning is cancelled, the processing is accurate, and the product qualification rate is high. Description of the Drawings

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

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

[0014] In the figure: 1-bottom plate, 2-centering clamp, 3-horizontal positioning seat, 4-lever cylinder, 5-bracket, 6-front and rear positioning seat, 7-telescopic cylinder, 8-auxiliary support seat. Specific Embodiments

[0015] As Figure 1 shown, a positioning tooling for processing the swing arm hoop of a rail vehicle includes a bottom plate 1. A centering clamp 2 is fixedly installed on the bottom plate 1, and the two clamping jaws of the centering clamp 2 move relatively left and right. Horizontal positioning seats 3 are respectively and fixedly installed on the left and right sides of the centering clamp 2 on the bottom plate 1. Lever cylinders 4 are respectively and fixedly installed on the front and rear sides of the centering clamp 2 on the bottom plate 1, and the pressing plates of the two lever cylinders 4 point relatively. Brackets 5 are respectively and fixedly installed on the left and right sides of the two lever cylinders 4. Front and rear positioning seats 6 are respectively and fixedly installed on the two brackets 5 located at the rear side. Telescopic cylinders 7 are respectively and fixedly installed on the two brackets 5 located at the front side, and the piston rods of the telescopic cylinders 7 point to the corresponding front and rear positioning seats 6. Auxiliary support seats 8 are respectively and fixedly installed on the bottom plate 1 between the centering clamp 2 and the two lever cylinders 4.

[0016] As Figure 2As shown in the figure, during the positioning operation, first place the swing arm hoop seat of the rail passenger car on the upper end surfaces of the horizontal positioning seat 3 and the auxiliary support seat 8, then start the centering clamp 2, and the two jaws of the centering clamp 2 will clamp the swing arm hoop of the rail passenger car left and right. Then start the telescopic oil cylinder 7, and the piston rod of the telescopic oil cylinder 7 will push the swing arm hoop of the rail passenger car against the front and rear positioning seats 6. Finally, start the lever oil cylinder 4, and the pressing plate of the lever oil cylinder 4 will press down the swing arm hoop of the rail passenger car. The swing arm hoop of the rail passenger car is positioned up and down by the horizontal positioning seat 3 and the pressing plate of the lever oil cylinder 4, positioned left and right by the two jaws of the centering clamp 2, and positioned front and rear by the front and rear positioning seats 6 and the telescopic oil cylinder 7.

[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 modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rail passenger car swing arm hoop processing and positioning tool, including a bottom plate, characterized in that: A centering clamp is fixedly installed on the base plate, and two clamping jaws of the centering clamp move left and right relative to each other. Horizontal positioning seats are fixedly installed on the left and right sides of the centering clamp on the base plate, and a pressing mechanism is fixedly installed on the front and rear sides of the centering clamp on the base plate. Front and rear positioning seats are fixedly installed on the left and right sides of the pressing mechanism at the rear side of the base plate, and telescopic cylinders are fixedly installed on the left and right sides of the pressing mechanism at the front side of the base plate, and the piston rods of the telescopic cylinders point to the corresponding front and rear positioning seats.

2. The railway passenger car swing arm hoop processing and positioning tool according to claim 1, characterized in that: The pressing mechanism is a vertical lever cylinder, and the pressing plates of the two lever cylinders point to opposite directions.

3. The railway passenger car swing arm hoop processing and positioning tool according to claim 1, characterized in that: The bottom plate is provided with fixed mounting brackets on the left and right sides of the two pressing mechanisms, respectively, and the front and rear positioning seats and the telescopic oil cylinder are fixedly mounted on the corresponding brackets.

4. The railway passenger car swing arm hoop processing and positioning tool according to claim 1, characterized in that: Auxiliary support seats are fixedly installed on the bottom plate between the centering clamp and the two pressing mechanisms.

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