Railway vehicle frame brake shoe hanger seat and fixed hanger rod seat positioning tool

Abstract

The utility model provides a kind of railcar framework brake shoe hanger seat, fixed hanger rod seat positioning tool, comprising: tool platform;Two support components, two support components are respectively set in the both sides of tool platform top portion.The utility model provides a kind of railcar framework brake shoe hanger seat, fixed hanger rod seat positioning tool, and structure is mutually cooperated by tool platform, two support components, four locating seats and pin shaft etc., when railcar framework component is positioned, tool platform provides unified reference, and support component is stably supported locating seat, and it is not necessary to manually repeatedly calibrate reference;Component is placed in locating seat, and pin shaft is inserted into shaft hole, and it can be quickly positioned, and it is not necessary to manually line measurement;Four locating seats are synchronous positioning, guarantee the coaxial degree and installation precision of component, and there is no need to worry about size out-of-tolerance, to solve the problem that traditional positioning reference is inconsistent, precision is low, operation is complicated, simplify assembly process, reduce rework risk, improve the stability and security of railcar braking system assembly.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicle manufacturing technology, and in particular to a positioning fixture for a rail vehicle frame brake shoe hanger and a fixed hanger seat. Background Technology

[0002] The brake shoe hanger and fixed hanger seat of the railcar frame are key load-bearing components of the bogie frame of rail transit vehicles. Their installation accuracy directly affects the operational stability and safety of the railcar braking system, making them a core assembly link in railcar manufacturing. Due to the installation location restrictions of these components, the mounting holes cannot be machined simultaneously during the overall frame processing. The industry generally adopts a production mode of "machined individual parts and then welded together," and it is necessary to ensure the assembly consistency of the four casting seat bodies.

[0003] Currently, traditional assembly processes rely on manual marking and tack fixing for positioning, which has several prominent problems: First, the positioning benchmarks are inconsistent. When the side bearing mounting surface on the side beam of the frame is used as the marking benchmark, there is a high deviation between the two side bearing mounting surfaces, resulting in inconsistent positioning benchmarks for the four seats and making it difficult to guarantee assembly accuracy. Second, the operation is difficult and inefficient. Manual marking requires repeated measurement of the center opening size and positioning height of the two hanger seats. If the dimensions are out of tolerance after tack fixing, the weld needs to be removed and readjusted, which is a cumbersome and time-consuming process. Third, the risk of rework is high. Both the brake shoe hanger seat and the fixed hanger seat are castings. Once the dimensions are out of tolerance after welding, the modification is extremely difficult, and even after rework, it is still difficult to guarantee the coaxiality of the holes and the positioning accuracy of the seats, which can easily lead to subsequent assembly failures.

[0004] Therefore, it is necessary to provide a positioning fixture for the brake shoe hanger and fixed hanger seat of a railcar frame to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a positioning fixture for a brake shoe hanger and a fixed hanger seat for a railcar frame, which solves the problems of inconsistent positioning benchmarks, low assembly accuracy, cumbersome operation, and high risk of rework associated with traditional manual marking.

[0006] To solve the above-mentioned technical problems, this utility model provides a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat, comprising: Tooling platform; Two support components are respectively disposed on both sides of the top of the tooling platform; Four positioning seats are respectively disposed on both sides of the two support components. Each of the four positioning seats has a shaft hole on its top and a pin on the inner side of each of the four shaft holes.

[0007] Preferably, both of the support components include a base plate and a support seat, with the support seat fixedly installed on the top of the base plate.

[0008] Preferably, the bottom of the base plate is provided with a second mounting bolt on the inside of all four sides, and the bottom of the four second mounting bolts is threaded to the top of the tooling platform.

[0009] Preferably, reinforcing plates are fixedly installed on both sides of the support base, and the top of the reinforcing plates is fixedly installed on the bottom of the positioning base.

[0010] Preferably, the top of the support base is provided with a limiting component, the limiting component including a limiting seat, two mounting slots and two first mounting bolts, the limiting seat is disposed on the top of the support base, both mounting slots are opened on the top of the limiting seat, and the bottoms of the two first mounting bolts respectively penetrate the inner side of the two mounting slots and are threaded to the top of the support base.

[0011] Preferably, the positioning fixture for the railcar frame brake shoe hanger and the fixed hanger seat further includes an alignment component and two mounting components, which are respectively disposed on the sides of the two support seats.

[0012] Preferably, both mounting components include an L-shaped mounting plate and a magnetic plate. The bottom of the L-shaped mounting plate is respectively attached to the top of the base plate. The magnetic plate is fixedly mounted on the side of the L-shaped mounting plate and is also magnetically attracted to the side of the support base. The alignment component includes an infrared transmitter and an infrared receiver, which are respectively disposed on the sides of the two mounting components.

[0013] Compared with related technologies, the positioning fixture for the brake shoe hanger and fixed hanger seat of the railcar frame provided by this utility model has the following advantages: This utility model provides a positioning fixture for a brake shoe hanger and a fixed hanger seat on a railcar frame. Through the coordinated structure of a fixture platform, two support components, four positioning seats, and pins, the fixture platform provides a unified reference during the positioning of railcar frame components. The support components firmly support the positioning seats, eliminating the need for repeated manual calibration of the reference. Components are placed on the positioning seats, and the pins are inserted into the shaft holes for quick positioning, without the need for manual scribing and measurement. The four positioning seats position synchronously, ensuring the coaxiality and installation accuracy of the components, eliminating concerns about dimensional deviations. This solves the problems of inconsistent positioning references, low accuracy, and cumbersome operation associated with traditional methods, simplifying the assembly process, reducing rework risks, and improving the stability and safety of the railcar braking system assembly. Attached Figure Description

[0014] Figure 1 A schematic diagram of the first embodiment of a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat provided by this utility model; Figure 2 for Figure 1The enlarged schematic diagram of part A shown below; Figure 3 A schematic diagram of the second embodiment of a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat provided by this utility model; Figure 4 for Figure 3 The diagram shows the side structure of the mounting components.

[0015] The following are the labels in the diagram: 1. Tooling platform, 2. Support assembly, 21. Base plate, 22. Support seat, 3. Positioning seat, 4. Shaft hole, 5. Pin, 6. Reinforcing plate, 7. Limiting assembly, 71. Limiting seat, 72. Mounting groove, 73. First mounting bolt, 8. Second mounting bolt, 9. Alignment assembly, 91. Infrared transmitter, 92. Infrared receiver, 10. Mounting assembly, 101. L-shaped mounting plate, 102. Magnetic plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] First Embodiment

[0018] Please refer to the following: Figure 1 , Figure 2 ,in, Figure 1 A schematic diagram of the first embodiment of a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A is shown.

[0019] A positioning fixture for a brake shoe hanger and a fixed hanger seat on a railcar frame includes: a fixture platform 1; Two support components 2 are respectively disposed on both sides of the top of the tooling platform 1; Four positioning seats 3 are respectively disposed on both sides of the two support components 2. Each of the four positioning seats 3 has a shaft hole 4 on its top and a pin 5 is disposed on the inner side of each of the four shaft holes 4.

[0020] Both of the support components 2 include a base plate 21 and a support base 22, with the support base 22 fixedly installed on the top of the base plate 21.

[0021] The bottom plate 21 is provided with second mounting bolts 8 on all four sides of its interior, and the bottom of each of the four second mounting bolts 8 is threaded to the top of the tooling platform 1.

[0022] The tooling platform 1 is a high-precision machining platform, serving as a unified benchmark for the entire tooling and ensuring the installation accuracy of the four positioning seats 3; the base plate 21 is fixed to the tooling platform by the second mounting bolt 8, ensuring a firm connection; the support seat 22 provides stable support for the positioning seats 3, ensuring that no deformation occurs during the positioning process. The second mounting bolt 8 facilitates the assembly and disassembly of the base plate 21 and the tooling platform 1, and allows the position of the support component 2 to be adjusted according to different frame specifications, thereby improving the versatility of the tooling.

[0023] A reinforcing plate 6 is fixedly installed on both sides of the support base 22, and the top of the reinforcing plate 6 is fixedly installed on the bottom of the positioning base 3.

[0024] The reinforcing plate 6 adopts a triangular support structure to enhance the connection strength between the positioning seat 3 and the support seat 22, prevent the positioning seat from shifting after long-term use, and ensure the stability of positioning accuracy.

[0025] The top of the support base 22 is provided with a limiting component 7. The limiting component 7 includes a limiting seat 71, two mounting slots 72 and two first mounting bolts 73. The limiting seat 71 is disposed on the top of the support base 22. The two mounting slots 72 are both opened on the top of the limiting seat 71. The bottoms of the two first mounting bolts 73 pass through the inner sides of the two mounting slots 72 and are threaded to the top of the support base 22.

[0026] The working principle of the positioning fixture for the brake shoe hanger and fixed hanger seat of the railcar frame provided by this utility model is as follows: The support assembly 2 is fixed to the preset position of the tooling platform 1 by the second mounting bolt 8, ensuring that the two support assemblies 2 are symmetrically distributed and the spacing of the four positioning seats 3 meets the design requirements of the frame hanger seat; the position and size of the shaft hole 4 of the positioning seat 3 are checked by a coordinate measuring machine to ensure that they meet the process drawings; Place the brake shoe hanger and the fixed hanger seat on the top of the four positioning seats 3 respectively, adjust the position of the seats so that the mounting holes on the seats are aligned with the shaft holes 4 of the positioning seats 3; insert the pin 5 into the shaft hole 4 and the mounting hole of the seat to achieve quick positioning of the seats, ensure that the coaxiality and positioning height of the four seats are consistent, and after confirming that there are no errors, spot weld the seats. After welding is completed, pull out pin 5, and the frame can be lifted off the fixture to proceed to the next process; the fixture can be reused for assembling frames of the same specifications without repeated debugging.

[0027] Compared with related technologies, the positioning fixture for the brake shoe hanger and fixed hanger seat of the railcar frame provided by this utility model has the following advantages: The tooling platform 1, two support components 2, four positioning seats 3, and pins 5 work together to provide a unified reference when positioning the railcar frame components. The support components 2 provide stable support for the positioning seats 3, eliminating the need for repeated manual calibration of the reference. The component is placed on the positioning seat 3, and the pin 5 is inserted into the shaft hole 4 for quick positioning, without the need for manual scribing and measurement. The four positioning seats 3 are positioned synchronously, ensuring the coaxiality and installation accuracy of the components. There is no need to worry about dimensional deviations, thus solving the problems of inconsistent positioning references, low accuracy, and cumbersome operation in traditional positioning methods. This simplifies the assembly process, reduces the risk of rework, and improves the stability and safety of the railcar braking system assembly.

[0028] Second Embodiment

[0029] Please refer to the following: Figure 3 and Figure 4 Based on the first embodiment of this application which provides a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat, the second embodiment of this application proposes another positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0030] Specifically, the second embodiment of this application provides a positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat, which differs in that the positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat further includes an alignment component 9 and two mounting components 10, wherein the alignment component 9 and the two mounting components 10 are respectively disposed on the sides of the two support seats 22.

[0031] Both mounting components 10 include an L-shaped mounting plate 101 and a magnetic plate 102. The bottom of the L-shaped mounting plate 101 is attached to the top of the base plate 21. The magnetic plate 102 is fixedly mounted on the side of the L-shaped mounting plate 101 and is also magnetically attracted to the side of the support base 22. The alignment component 9 includes an infrared transmitter 91 and an infrared receiver 92. The infrared transmitter 91 and the infrared receiver 92 are respectively disposed on the side of the two mounting components 10.

[0032] The mounting component 10 is magnetically fixed to the side of the support base 22 by the magnetic plate 102, which is convenient to install and remove without the need for additional bolts. The infrared transmitter 91 and the infrared receiver 92 work together to emit infrared light to form an alignment reference, which can quickly determine whether the two support components 2 are symmetrical and whether the base is installed in place, further improving the positioning accuracy and ease of operation.

[0033] The working principle of the positioning fixture for the brake shoe hanger and fixed hanger seat of the railcar frame provided by this utility model is as follows: The two mounting components 10 are respectively attached to the sides of the two support bases 22 by magnetic plates 102, ensuring that the infrared transmitter 91 and the infrared receiver 92 are at the same height.

[0034] Start the infrared transmitter 91. If the infrared receiver 92 can accurately receive the infrared signal, it means that the two support components 2 are symmetrically arranged and the tooling is properly adjusted. If the signal cannot be received, the position of the support components 2 can be finely adjusted until they are aligned.

[0035] Compared with related technologies, the positioning fixture for the brake shoe hanger and fixed hanger seat of the railcar frame provided by this utility model has the following advantages: By cooperating with the alignment component 9 and the two mounting components 10, the magnetic plate 102 adsorbs the mounting component 10 onto the support base 22 during tooling debugging, allowing for quick installation without bolt fixation; the infrared transmitter 91 and the infrared receiver 92 form an alignment reference, allowing for determination of whether the support component 2 is symmetrical without complex measurements, thus quickly completing the debugging, thereby further improving the ease of operation and positioning accuracy, shortening the tooling debugging time, adapting to the assembly requirements of different specifications of the frame, and improving production efficiency.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A positioning fixture for a brake shoe hanger and a fixed hanger seat on a railcar frame, characterized in that, include: Tooling platform; Two support components are respectively disposed on both sides of the top of the tooling platform; Four positioning seats are respectively disposed on both sides of the two support components. Each of the four positioning seats has a shaft hole on its top and a pin on the inner side of each of the four shaft holes.

2. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 1, characterized in that, Both of the aforementioned support components include a base plate and a support seat, with the support seat fixedly mounted on top of the base plate.

3. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 2, characterized in that, The base plate is provided with second mounting bolts on its interior around all four sides, and the bottom of each of the four second mounting bolts is threaded to the top of the tooling platform.

4. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 2, characterized in that, Reinforcing plates are fixedly installed on both sides of the support base, and the top of the reinforcing plates is fixedly installed on the bottom of the positioning base.

5. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 2, characterized in that, The top of the support base is provided with a limiting component, which includes a limiting seat, two mounting slots and two first mounting bolts. The limiting seat is located on the top of the support base, and the two mounting slots are both opened on the top of the limiting seat. The bottoms of the two first mounting bolts pass through the inner sides of the two mounting slots and are threaded to the top of the support base.

6. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 2, characterized in that, It also includes an alignment component and two mounting components, which are respectively disposed on the sides of the two support bases.

7. The positioning fixture for a railcar frame brake shoe hanger and a fixed hanger seat according to claim 6, characterized in that, Both mounting components include an L-shaped mounting plate and a magnetic plate. The bottom of the L-shaped mounting plate is attached to the top of the base plate. The magnetic plate is fixedly mounted on the side of the L-shaped mounting plate and is also magnetically attracted to the side of the support. The alignment component includes an infrared transmitter and an infrared receiver, which are respectively disposed on the sides of the two mounting components.

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