Bogie frame brake hanger assembly welding tool

Abstract

The utility model discloses a bogie frame brake suspension seat assembly welding frock relates to bogie frame welding technical field, including adjustable support module, adaptation angle module, locating block and compression device being set on base, adjustable support module detachable installation is in base, and the bolt connection has adaptation angle module on the support platform of adjustable support module top, and the top of support platform is located adaptation angle module's one side and has the movable mounting of locating block, the compression device for the compression of brake suspension seat is assembled on adjustable support module. This frock can realize the quick assembly of brake suspension seat, and greatly improve the assembly efficiency, and the compression device that frock sets up can adapt more model brake suspension seat different plane, the compression of inclined plane, and the workpiece adaptation range is wide, and the applicability is high, and the frock is more bolted and inserted structure, especially the compression device, is convenient and flexible to use, and is quick and convenient to dismantle, and is easy to store, and the land space is small, and the operation space is big.

Description

Technical Field

[0001] This utility model relates to the field of bogie frame welding technology, and in particular to a welding fixture for a bogie frame brake hanger assembly. Background Technology

[0002] The bogie frame brake hanger is an indispensable component in the welding of the bogie frame. Located on the side beam of the frame, its assembly and welding require high precision. To ensure this high precision, it needs to be positioned and assembled using appropriate tooling. Currently used welding tooling is mostly a single-position fixed tooling, requiring repeated manual adjustment of the brake hanger for assembly and welding. This manual operation is difficult, and the accuracy of the brake hanger after welding cannot be guaranteed.

[0003] Specifically, the currently used welding fixtures have the following disadvantages: 1. Existing welding fixtures have poor adjustability and lack a quick positioning device. They cannot achieve precise positioning of the brake seat through fine-tuning of the fixtures. The assembly of the brake seat is inconvenient and difficult, with long assembly time, high cost, and low efficiency.

[0004] 2. Existing tooling lacks lateral clamping and top clamping structures, or the clamping and top clamping positions are specific, making it unsuitable for various types of brake seats with multiple slopes. This leads to unstable assembly, resulting in large deviations in precision after welding, making adjustment and repair difficult, and resulting in poor product quality.

[0005] 3. After prolonged use, tooling is prone to positional deviations and inaccurate positioning.

[0006] 4. The tooling is welded or riveted, making it difficult to disassemble and store. When not in use, it occupies space and interferes with welding in other locations.

[0007] Therefore, a new welding fixture needs to be designed to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to provide a welding fixture for assembling brake hangers on bogie frames, so as to solve the problems existing in the prior art, realize the rapid assembly of brake hangers, and improve assembly efficiency and accuracy.

[0009] To achieve the above objectives, this utility model provides the following solution: This utility model provides a welding fixture for a bogie frame brake hanger assembly, including an adjustable support module, an adaptation angle module, a positioning block, and a clamping device mounted on a base. The adjustable support module is detachably mounted on the base. The adaptation angle module is bolted to a support platform located at the top of the adjustable support module. The positioning block is movably mounted on the top of the support platform on one side of the adaptation angle module. The clamping device mounted on the adjustable support module is used to clamp the brake hanger.

[0010] In one embodiment, the bogie frame brake hanger assembly welding fixture is placed on the frame assembly jig as a whole. The base is bolted to the frame fixture. The four corners of the base are provided with elongated holes for coarse left and right adjustment of the brake hanger position. The center of the base is provided with a pin hole for locking the fixture.

[0011] In one embodiment, the adjustable support module includes two telescopic columns, which are symmetrically welded to the base. The upper part of the telescopic columns is bolted to the support platform.

[0012] In one embodiment, a support rod is welded between the two telescopic columns, and an adjusting screw is mounted on the middle of the support rod. The top of the adjusting screw is fixedly connected to the center of the bottom of the support platform.

[0013] In one embodiment, the clamping device includes a clamping arm connecting rod and a round shaft connecting seat. The round shaft connecting seat is mounted on the side of the support connecting rod. The bottom of the clamping arm connecting rod is rotatably mounted in the round shaft hole of the round shaft connecting seat. The upper part of the clamping arm connecting rod is used to connect an X-axis adjustable clamping arm and a Z-axis adjustable clamping arm, respectively.

[0014] In one embodiment, the Z-axis adjustable clamping arm includes a movable connecting rod and a Z-axis clamping screw. The movable connecting rod is a movable shaft. One end of the movable connecting rod is movably mounted on the top of the clamping arm connecting rod, and the other end of the movable connecting rod is fitted with the Z-axis clamping screw via a threaded sleeve. A clamping head is installed at the bottom end of the Z-axis clamping screw.

[0015] In one embodiment, the X-axis adjustable clamping arm includes an X-axis clamping screw, which is threadedly fitted into a threaded sleeve on the side of the clamping arm connecting rod, and a clamping head is installed at the working end of the X-axis clamping screw.

[0016] In one embodiment, the clamping head includes a threaded post with a spherical surface at the bottom and a cylindrical ring threaded to the outside of the threaded post. The spherical surface of the threaded post is used to contact and clamp the brake seat. One end of the inner wall of the cylindrical ring is provided with an internal thread, and the other end is not provided with an internal thread.

[0017] In one embodiment, the adaptation angle module adopts a contour block, the upper part of which is an inclined surface and conforms to the lateral positioning surface of the brake seat, and the lower part of which is a vertical surface.

[0018] In one embodiment, the positioning block is an L-shaped positioning block, and the upper surface of the positioning block has an elongated hole for bolting to the support platform.

[0019] The present invention achieves the following beneficial technical effects compared to the prior art: The bogie frame brake hanger assembly welding fixture of this utility model includes an adjustable support module, an adaptation angle module, a positioning block, and a clamping device mounted on a base. The adjustable support module is detachably mounted on the base. The adaptation angle module is bolted to a support platform located on top of the adjustable support module. A positioning block is movably mounted on one side of the adaptation angle module on the top of the support platform. The clamping device mounted on the adjustable support module is used to clamp the brake hanger. This fixture enables rapid assembly of the brake hanger, greatly improving assembly efficiency. The clamping device can adapt to clamping different planes and inclined surfaces of various brake hanger models, offering a wide range of workpiece adaptability and high applicability. The fixture mainly uses bolted and plug-in structures, especially the clamping device, which is convenient and flexible to use, quick and easy to disassemble, easy to store, occupies little space, and provides ample operating space.

[0020] Specifically, this fixture is equipped with a coarse-adjustment positioning base and a dedicated fine-adjustment positioning block for the brake seat. Fine-tuning of the fixture enables rapid and precise positioning of the brake seat, improving assembly efficiency, reducing operational difficulty, and saving labor costs. The fixture features a dual-purpose (fixed and rotating) clamping head, a telescopic and rotatable universal clamping arm, and an adjustable support platform. For different types and shapes of brake seats, it can achieve clamping at various positions in multiple directions, angles, and cross-sections, ensuring assembly accuracy, reducing welding deformation, and improving product quality. This fixture has a locking function, and its assembly dimensions are mature. During mass production, locking the fixture position allows for rapid mounting and clamping, significantly improving production efficiency while ensuring positioning accuracy requirements for long-term use. The fixture itself is easy to assemble and disassemble, allowing for quick disassembly and storage, reducing space requirements and facilitating other processes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall structure of the welding fixture for the brake hanger assembly of the bogie frame; Figure 2 A schematic diagram showing the connection between the telescopic column and the adjusting screw and the support platform; Figure 3 This is a structural schematic diagram of the pressure arm connecting rod; Figure 4 This is a schematic diagram of the structure of the circular shaft connector; Figure 5 This is a structural layout diagram of the clamping device; Figure 6This is a schematic diagram of the clamping head. Figure 7 This is a schematic diagram of the cylindrical ring structure; Figure 8 This is a cross-sectional view of a cylindrical ring; Figure 9 A schematic diagram showing the working state of the welding fixture for the brake hanger assembly of the bogie frame; Figure 10 This is a schematic diagram illustrating the positioning status of the L-shaped positioning block on the workpiece. Among them, 1. base; 2. telescopic column; 3. support platform; 4. contour block; 5. clamping device; 6. positioning block; 7. adjusting screw; 8. threaded column; 9. spherical surface; 10. threaded surface; 11. unthreaded surface; 12. spherical contact surface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this utility model is to provide a welding fixture for assembling brake hangers on bogie frames, so as to solve the problems existing in the prior art, realize the rapid assembly of brake hangers, and improve assembly efficiency and accuracy.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1-10 As shown, this utility model provides a welding fixture for a brake hanger assembly on a bogie frame, including an adjustable support module, an adaptation angle module, a positioning block 6, and a clamping device 5, all mounted on a base 1. The adjustable support module is detachably mounted on the base 1. The adaptation angle module is bolted to a support platform 3 located on top of the adjustable support module. The positioning block 6 is movably mounted on the top of the support platform 3 on one side of the adaptation angle module. The clamping device 5 mounted on the adjustable support module is used to clamp the brake hanger.

[0027] In one embodiment, the bogie frame brake hanger assembly welding fixture is placed entirely on the frame assembly jig. The base 1 is bolted to the frame fixture. The base 1 has elongated oval holes at its four corners for coarse left-right adjustment of the brake hanger position, and a pin hole in the center for locking the fixture. The elongated oval holes at the four corners of the base 1 are for coarse left-right adjustment of the brake hanger position, and the pin hole in the center is for locking the fixture during long-term use to prevent displacement due to loose bolts.

[0028] In one embodiment, the adjustable support module includes two telescopic columns 2. Two telescopic columns 2 are symmetrically welded to the center of the base 1, and the upper parts of the telescopic columns 2 are bolted to the support platform 3. Telescopic columns 2 are welded to both sides of the base 1. The upper parts of the telescopic columns 2 are tightly connected to the support platform 3 via bolted connections, and the lower parts extend into a square tubing, fitting snugly against the tubing. The tubing wall is coated with oil to increase lubrication. An adjusting screw 7 is installed in the middle for fine-tuning the height of the brake seat. Preferably, the telescopic columns 2 can be hydraulic telescopic rods.

[0029] In one embodiment, a support rod is welded between the two telescopic columns 2, and an adjusting screw 7 is mounted in the middle of the support rod. The top of the adjusting screw 7 is fixedly connected to the center of the bottom of the support platform 3.

[0030] In one embodiment, the clamping device 5 includes a clamping arm connecting rod and a round shaft connecting seat. The round shaft connecting seat is mounted on the side of the supporting connecting rod, and the bottom of the clamping arm connecting rod is rotatably mounted in the round shaft hole of the round shaft connecting seat. The upper part of the clamping arm connecting rod is used to connect an X-axis adjustable clamping arm and a Z-axis adjustable clamping arm, respectively. The clamping device 5 is tooled and fixed to the supporting connecting rod by bolts. It consists of two parts: side clamping and upper clamping (i.e., the X-axis is lateral, and the Z-axis is upper clamping). The clamping arm connecting rod and the matching round shaft connecting seat with a boss are designed as follows: Figure 1 , 3 The pressure arm connecting rod shown in Figure 4 is key-shaped, thicker at the top and thinner at the bottom. The thicker part sits on the round shaft boss, while the thinner part is directly inserted into the round shaft hole, allowing the clamping device 5 to rotate 360° for easy assembly and disassembly. The other side of the round shaft connecting seat is bolted to the support connecting rod.

[0031] In one embodiment, the Z-axis adjustable clamping arm includes a movable connecting rod and a Z-axis clamping screw. The movable connecting rod is a movable shaft. One end of the movable connecting rod is movably mounted on the top of the clamping arm connecting rod, and the other end of the movable connecting rod is fitted with the Z-axis clamping screw through a threaded sleeve. A clamping head is installed at the bottom end of the Z-axis clamping screw.

[0032] The X-axis adjustable clamping arm includes an X-axis clamping screw, which is threadedly fitted into a threaded sleeve on the side of the clamping arm connecting rod. A clamping head is installed at the working end of the X-axis clamping screw.

[0033] The clamping head includes a threaded post 8 with a spherical surface 9 at the bottom and a cylindrical ring threaded to the outside of the threaded post 8. The spherical surface 9 of the threaded post 8 is used to contact and clamp the brake seat. One end of the inner wall of the cylindrical ring is provided with internal threads, and the other end is not provided with internal threads.

[0034] The movable connecting rod is a movable shaft, facilitating disassembly and assembly, and allowing for adjustment of the front and rear extension distance. The Z-axis clamping screw is tightened manually or by wrench rotation. The X-axis adjustable clamping arm is directly welded and fixed to the clamping arm connecting rod, and is laterally tightened via the X-axis clamping screw. The screw end connects to a universal joint (clamping head) for both fixed and moving applications. The universal joint consists of two parts: an inner spherical threaded cylindrical head (8-shaped) and an outer cylindrical ring. The threaded part is used for tightening and fixing, with the clamping / pressing surface perpendicular to the screw. When the threaded part is screwed into the lower space and there is no thread contact at the upper part, the spherical surface (9) contacts the cylindrical ring to form a universal contact surface, enabling contact and clamping of all surfaces and directions of the brake seat. Specifically, as shown... Figure 6-7 As shown, the spherical surface 9 fits into the spherical contact surface 12 of the cylindrical ring, and the spherical surface 9 and the spherical contact surface 12 are matched. The threaded column 8 is a cylindrical surface with threads on the side, and the threaded part matches the threaded part of the threaded surface 10 of the cylindrical ring. The threads of the threaded column 8 and the threaded surface 10 are not shown in the figure. The unthreaded surface 11 is a smooth plane without threads. The diameter of the slot in the unthreaded surface 11 is larger than the diameter of the slot in the threaded surface 10. The thickness of the unthreaded surface 11 is greater than the thickness of the thread of the threaded column 8. When the thread of the threaded column 8 is fully screwed into the unthreaded surface 11 in the lower space through the threaded surface 10, the spherical surface 9 contacts the spherical contact surface 12 on the bottom surface of the cylindrical ring to form a universal contact surface. If vertical surface clamping is desired, the threaded column 8 does not need to be fully screwed into the unthreaded surface 11, but can be fixed by threaded connection with the threaded surface 10.

[0035] In one embodiment, the adaptation angle module uses a contour block 4. The upper part of the contour block 4 is an inclined surface that conforms to the lateral positioning surface of the brake seat, and the lower part of the contour block 4 is a vertical surface. The positioning block 6 is an L-shaped positioning block 6, and the upper surface of the positioning block 6 has an elongated hole for bolting to the support platform 3.

[0036] A contour block 4 is installed on the upper part of the support platform 3. The support surface conforms to the contact surface of the brake hanger, providing conformal support for the brake hanger. The contour block 4 is bolted to the support platform 3 for easy replacement, which can be made according to the shape of the brake hanger contact surface. An L-shaped positioning block 6 is installed on one side of the contour block 4. The upper part is an inclined surface that conforms to the lateral positioning surface of the brake hanger, and the lower part is a vertical surface that is perpendicular to the platform surface of the support platform 3, facilitating the measurement of lateral dimensions. An elongated hole is opened on the upper surface of the positioning block 6 for bolting to the support platform 3, which is used for fine adjustment of the left and right position of the brake hanger.

[0037] This tooling allows for the rapid assembly and welding of the brake hanger. The operating method is as follows: (1) Assembly: Using the X and Y direction reference lines of the frame assembly tire as the reference, measure the distance between the outer side of the contour block 4 and the X direction reference line of the frame assembly tire, and the distance between the L-shaped positioning block 6 of the tooling and the Y direction reference line of the frame assembly tire, determine the positioning position of the brake hanger assembly welding tooling module and lock it in place; when assembling the brake hanger, the outer side of the brake hanger and the outer side of the contour block 4 should be kept on the same plane, and the side slope of the brake hanger should be directly attached to the L-shaped positioning block 6. Use the clamping tooling to clamp and fix it, and the assembly is completed.

[0038] (2) Welding: Loosen the clamping device 5 of the brake hanger fixture and rotate it to a suitable position so that the frame can be smoothly removed from the tire. Use an overhead crane to lift it out and move it to the welding fixture for welding.

[0039] The welding fixture for the bogie frame brake hanger assembly of this utility model has the following characteristics: 1. The base 1 of this tooling design is equipped with an elongated hole to achieve coarse adjustment of the lateral position of the brake hanger, so as to match the assembly position of the brake hanger. The telescopic column 2 is used for coarse adjustment of the longitudinal position of the moving hanger. The pin hole is used for fixing the tooling in mass production, so as to achieve rapid assembly of the brake hanger and greatly improve assembly efficiency. 2. The L-shaped positioning block 6 can achieve fine lateral adjustment of the brake hanger. It is equipped with a conformal positioning surface and a vertical measuring surface, which can achieve fine lateral adjustment of the brake hanger. Together with the clamping device 5, it greatly improves the assembly accuracy. 3. The tooling is equipped with side and top clamping devices 5. The clamping devices 5 can rotate easily 360° and the clamping arm can extend and retract. It is equipped with universal clamping / top clamping head, which can easily install and remove clamps. It can be adapted to clamping different planes and inclined surfaces of more models of brake hangers, and has a wide range of workpiece adaptability and high applicability. 4. The universal head can be used for both fixed and moving positions, making it convenient and quick to use without disassembly or replacement, thus saving manufacturing time; 5. The contour block 4 of the support platform 3 is bolted and fixed, making it easy to replace. The overall tooling has higher adaptability and a wider range of applications for workpieces, and tooling modification is more convenient. 6. The tooling is mostly bolted or plugged in, especially the clamping device 5, which is convenient and flexible to use, quick and easy to disassemble, easy to store, occupies little space, and has a large operating space.

[0040] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A welding fixture for assembling a brake hanger on a bogie frame, characterized in that: The device includes an adjustable support module, an adaptation angle module, a positioning block, and a clamping device mounted on a base. The adjustable support module is detachably mounted on the base. The adaptation angle module is bolted to a support platform located on top of the adjustable support module. The positioning block is movably mounted on the top of the support platform on one side of the adaptation angle module. The clamping device mounted on the adjustable support module is used to clamp the brake hanger.

2. The welding fixture for the brake hanger assembly of the bogie frame according to claim 1, characterized in that: The bogie frame brake hanger assembly welding fixture is placed on the frame assembly jig. The base is bolted to the frame fixture. The base has elongated holes at its four corners and a pin hole in the middle for locking the fixture.

3. The welding fixture for the brake hanger assembly of the bogie frame according to claim 1, characterized in that: The adjustable support module includes two telescopic columns, which are symmetrically welded to the base. The upper part of the telescopic columns is bolted to the support platform.

4. The welding fixture for the brake hanger assembly of the bogie frame according to claim 3, characterized in that: A support rod is welded between the two telescopic columns, and an adjusting screw is mounted on the middle of the support rod. The top of the adjusting screw is fixedly connected to the center of the bottom of the support platform.

5. The welding fixture for the brake hanger assembly of the bogie frame according to claim 4, characterized in that: The clamping device includes a clamping arm connecting rod and a round shaft connecting seat. The round shaft connecting seat is mounted on the side of the support connecting rod. The bottom of the clamping arm connecting rod is rotatably mounted in the round shaft hole of the round shaft connecting seat. The upper part of the clamping arm connecting rod is used to connect the X-axis adjustable clamping arm and the Z-axis adjustable clamping arm, respectively.

6. The welding fixture for the brake hanger assembly of the bogie frame according to claim 5, characterized in that: The Z-axis adjustable clamping arm includes a movable connecting rod and a Z-axis clamping screw. The movable connecting rod is a movable shaft. One end of the movable connecting rod is movably mounted on the top of the clamping arm connecting rod, and the other end of the movable connecting rod is fitted with the Z-axis clamping screw through a threaded sleeve. A clamping head is installed at the bottom end of the Z-axis clamping screw.

7. The welding fixture for the brake hanger assembly of the bogie frame according to claim 5, characterized in that: The X-direction adjustable clamping arm includes an X-direction clamping screw, which is threadedly fitted into a threaded sleeve on the side of the clamping arm connecting rod, and a clamping head is installed at the working end of the X-direction clamping screw.

8. The welding fixture for the brake hanger assembly of the bogie frame according to claim 6, characterized in that: The clamping head includes a threaded post with a spherical surface at the bottom and a cylindrical ring threaded to the outside of the threaded post. The spherical surface of the threaded post is used to contact and clamp the brake seat. One end of the inner wall of the cylindrical ring is provided with internal threads, and the other end is not provided with internal threads.

9. The welding fixture for the brake hanger assembly of the bogie frame according to claim 1, characterized in that: The adaptation angle module uses a contour block, the upper part of which is an inclined surface and conforms closely to the lateral positioning surface of the brake seat, and the lower part of which is a vertical surface.

10. The welding fixture for the brake hanger assembly of the bogie frame according to claim 1, characterized in that: The positioning block is an L-shaped positioning block, and the upper surface of the positioning block has an elongated hole for bolting to the support platform.

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