Swing bolster fixed lever fulcrum seat assembling and welding tool

Abstract

The utility model relates to the technical field of tool design, and discloses a swing bolster fixed lever fulcrum seat assembling and welding tool which comprises a tool body, a first positioning pin, a second positioning pin, a first clamp and a second clamp. The tool body comprises a transverse plate and a vertical plate which are integrally connected. The transverse plate is attached to the center plate face of the swing bolster. The vertical plate is attached to the upper surface of the fulcrum seat of the fixed lever; a first positioning hole is formed in the transverse plate; a second positioning hole is formed in the vertical plate; the first positioning pin is matched with the first positioning hole, and the second positioning pin is matched with the second positioning hole; a first pressing screw rod is arranged on the first clamp, and a second pressing screw rod is arranged on the second clamp; the first clamp is used for pressing the transverse plate and the center plate surface of the swing bolster; and the second clamp is used for pressing the vertical plate and the upper surface of the fixed lever fulcrum seat. The auxiliary positioning device can assist in positioning the swing bolster and the fixed lever fulcrum seat, and ensures that the welding size of the fixed lever fulcrum seat meets the requirement.

Description

Technical Field

[0001] This utility model relates to the field of tooling design technology, specifically to a welding tooling for a rocker bolster fixing lever fulcrum seat assembly. Background Technology

[0002] In the railway transportation sector, the safety and performance of railway freight cars are of paramount importance. The bolster assembly, as a key component of the railway freight car bogie, directly affects the stability and safety of train operation. The bolster assembly mainly consists of the bolster, fixed lever fulcrum seat, and inclined wear plate, among other components. The fixed lever fulcrum seat is connected to the bolster by welding. The position of the fixed lever fulcrum seat plays a crucial role in the vehicle's braking system, directly affecting braking performance. If the position of the welded fixed lever fulcrum seat deviates, uneven braking force and prolonged braking distance may occur during vehicle braking, potentially even jeopardizing operational safety in severe cases.

[0003] Therefore, designing a welding fixture to ensure that the welding dimensions of the fixed lever fulcrum seat meet the requirements is very important for ensuring the braking performance and driving safety of railway freight cars. Utility Model Content

[0004] The present invention aims to provide a welding fixture for assembling a rocker bolster fixed lever fulcrum seat, which can assist in positioning the rocker bolster and the fixed lever fulcrum seat, and ensure that the welding dimensions of the fixed lever fulcrum seat meet the requirements.

[0005] The basic solution provided by this utility model is as follows: a welding fixture for a rocker bolster fixing lever fulcrum seat, comprising a fixture body, a first positioning pin, a second positioning pin, a first clamp, and a second clamp; the fixture body comprises an integrally connected horizontal plate and a vertical plate; the horizontal plate is in contact with the core plate surface of the rocker bolster; the vertical plate is in contact with the upper surface of the fixing lever fulcrum seat; the horizontal plate is provided with a first positioning hole; the vertical plate is provided with a second positioning hole;

[0006] The first positioning pin engages with the first positioning hole, and the second positioning pin engages with the second positioning hole; the first clamp is provided with a first clamping screw, and the second clamp is provided with a second clamping screw; the first clamp is used to clamp the horizontal plate and the core plate of the rocker arm; the second clamp is used to clamp the vertical plate and the upper surface of the fixed lever fulcrum seat.

[0007] Furthermore, the horizontal plate and the vertical plate form a 140° angle.

[0008] Furthermore, there are two first positioning holes.

[0009] Furthermore, the first clip is located between the two first positioning holes.

[0010] Furthermore, two bolt holes are provided at the four corners of the core plate of the rocker; the shape and size of the two first positioning holes match the shape and size of the two bolt holes.

[0011] Furthermore, both the first and second card holders are U-shaped.

[0012] Furthermore, the first clamp is provided with a first auxiliary hole that mates with the first clamping screw; the second clamp is provided with a second auxiliary hole that mates with the second clamping screw.

[0013] Furthermore, the fixed lever fulcrum seat is provided with a round pin hole; the shape and size of the second positioning hole match the round pin hole.

[0014] The working principle and advantages of this utility model are as follows:

[0015] When using this welding fixture, firstly, the main body of the fixture is fixed to the bolster using the first locating pin, ensuring that the horizontal plate of the fixture body is flush with the center plate of the bolster. Then, the first clamp holds the horizontal plate and the bolster in place, and the first clamping screw presses the horizontal plate and the bolster together. Next, the vertical plate is connected to the fixed lever fulcrum seat to be welded using the second locating pin, and the second clamp holds the vertical plate and the fixed lever fulcrum seat in place. The second clamping screw presses the vertical plate and the fixed lever fulcrum seat together. This achieves the positioning of the bolster and the fixed lever fulcrum seat. Finally, a welding device is used to weld the fixed lever fulcrum seat to the bolster, completing the assembly welding process. After processing, the first and second clamping screws are removed, the first and second locating pins are removed, and the main body of the fixture is then removed.

[0016] This utility model discloses a welding fixture for assembling a bolster's fixed lever fulcrum seat. The fixture has a simple overall structure, low manufacturing cost, and is easy to operate. It can accurately position the fixed lever fulcrum seat, ensuring it maintains the correct position and angle during welding, thus guaranteeing that the welding of the fixed lever fulcrum seat meets the technical specifications. Furthermore, the fixture structure conforms closely to the surface structures of the bolster and the fixed lever fulcrum seat, minimizing clamping deformation and helping to ensure processing quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first overall structure of the welding fixture for fixing lever fulcrum seat of the rocker arm according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the second overall structure of the welding fixture for fixing lever fulcrum of the rocker arm according to an embodiment of the present invention.

[0019] Figure 3 This is a third overall structural schematic diagram of an embodiment of the welding fixture for fixing lever fulcrum of a rocker arm according to the present invention.

[0020] Figure 4 This is a three-view drawing of the main body of a welding fixture for a rocker bolster fixing lever fulcrum seat according to an embodiment of the present invention.

[0021] Figure 5 This is a partial view from direction A of the three views of the main body of the tooling body of a welding tooling assembly for a rocker bolster fixing lever fulcrum seat according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the overall structure of the first clamp and the first clamping screw in an embodiment of the welding fixture for fixing lever fulcrum of the rocker arm of this utility model;

[0023] Figure 7 This is a schematic diagram of the overall structure of the main body of the tooling body of an embodiment of the bolster fixing lever fulcrum seat welding tooling of this utility model;

[0024] Figure 8 This is a schematic diagram of the first overall structure of a welding fixture for a rocker arm fixing lever fulcrum seat according to an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the second overall structure of a welding fixture for a rocker arm fixing lever fulcrum seat according to an embodiment of the present invention.

[0026] The markings in the accompanying drawings of the instruction manual include: tooling body 1, horizontal plate 101, vertical plate 102, first positioning hole 103, second positioning hole 104, first positioning pin 2, first clamp 3, first auxiliary hole 301, second clamp 4, second positioning pin 5, first clamping screw 6, second clamping screw 7, rocker 8, center plate surface 801, bolt hole 802, and fixed lever fulcrum seat 9. Detailed Implementation

[0027] The following detailed explanation illustrates the specific implementation methods:

[0028] The basic implementation examples are as follows: Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown: A welding fixture for fixing lever fulcrum seat 9 to rocker 8 includes fixture body 1, first positioning pin 2, second positioning pin 5, first clamp 3 and second clamp 4.

[0029] like Figure 4 , Figure 5 and Figure 7As shown, the main body of the tooling 1 includes an integrally connected horizontal plate 101 and vertical plate 102; the horizontal plate 101 and the vertical plate 102 form a 140° angle. The horizontal plate 101 is in contact with the core surface 801 of the rocker 8; the vertical plate 102 is in contact with the upper surface of the fixed lever fulcrum seat 9; the horizontal plate 101 is provided with a first positioning hole 103; the vertical plate 102 is provided with a second positioning hole 104. There are two first positioning holes 103 and one second positioning hole 104. Two bolt holes 802 are provided at the four corners of the core surface 801 of the rocker 8; the shape and size of the two first positioning holes 103 match the shape and size of the two bolt holes 802. The fixed lever fulcrum seat 9 is provided with a round pin hole; the shape and size of the second positioning hole 104 matches the round pin hole. With this structure, the tooling structure can fully fit the surface structure of the rocker 8 and the fixed lever fulcrum seat 9, which is less likely to introduce clamping deformation and helps to ensure processing quality.

[0030] The first positioning pin 2 engages with the first positioning hole 103, and the second positioning pin 5 engages with the second positioning hole 104; the first clamp 3 is provided with a first clamping screw 6, and the second clamp 4 is provided with a second clamping screw 7; the first clamp 3 is used to clamp the horizontal plate 101 and the core plate surface 801 of the rocker 8; the second clamp 4 is used to clamp the vertical plate 102 and the upper surface of the fixed lever fulcrum seat 9. Both the first clamp 3 and the second clamp 4 are U-shaped.

[0031] The first clip 3 is located between the two first positioning holes 103. For example... Figure 6 As shown, the first clamp 3 has a first auxiliary hole 301 that mates with the first clamping screw 6; the second clamp 4 has a second auxiliary hole that mates with the second clamping screw 7. Both the first auxiliary hole 301 and the second auxiliary hole are threaded holes to engage with the screws for locking.

[0032] When using this welding fixture, firstly, the main body 1 of the fixture is fixed to the bolster 8 by the first positioning pin 2, ensuring that the horizontal plate 101 of the main body 1 is in contact with the center plate surface 801 of the bolster 8; the horizontal plate 101 and the bolster 8 are clamped by the first clamping clip 3, and then the horizontal plate 101 and the bolster 8 are clamped together by the first clamping screw 6; then, the vertical plate 102 is connected to the fixed lever fulcrum seat 9 to be welded by the second positioning pin 5, and the vertical plate 102 and the fixed lever fulcrum seat 9 are clamped by the second clamping clip 4, and then the vertical plate 102 and the fixed lever fulcrum seat 9 are clamped together by the second clamping screw 7; thus, the bolster 8 and the fixed lever fulcrum seat 9 are positioned. Then, the fixed lever fulcrum seat 9 is welded to the bolster 8 using a welding device, completing the assembly welding process. After the processing is completed, the first clamping screw 6 and the second clamping screw 7 are removed, the first positioning pin 2 and the second positioning pin 5 are removed, and then the main body 1 of the fixture is removed.

[0033] This embodiment provides a welding fixture for assembling the rocker 8 and the fixed lever fulcrum seat 9, which can help position the rocker 8 and the fixed lever fulcrum seat 9 and ensure that the welding dimensions of the fixed lever fulcrum seat 9 meet the requirements.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A welding fixture for a bolster fixing lever fulcrum seat assembly, characterized in that, The fixture includes a main body, a first positioning pin, a second positioning pin, a first clamp, and a second clamp; the main body includes an integrally connected horizontal plate and a vertical plate; the horizontal plate is in contact with the core plate surface of the bolster; the vertical plate is in contact with the upper surface of the fixed lever fulcrum seat; the horizontal plate is provided with a first positioning hole; the vertical plate is provided with a second positioning hole; The first positioning pin engages with the first positioning hole, and the second positioning pin engages with the second positioning hole; the first clamp is provided with a first clamping screw, and the second clamp is provided with a second clamping screw; the first clamp is used to clamp the horizontal plate and the core plate of the rocker arm; the second clamp is used to clamp the vertical plate and the upper surface of the fixed lever fulcrum seat.

2. The welding fixture for the bolster fixing lever fulcrum seat assembly according to claim 1, characterized in that, The horizontal plate and the vertical plate form a 140° angle.

3. The welding fixture for the bolster fixing lever fulcrum seat according to claim 1, characterized in that, There are two first positioning holes.

4. The welding fixture for the bolster fixing lever fulcrum seat according to claim 3, characterized in that, The first clip is located between the two first positioning holes.

5. The welding fixture for the bolster fixing lever fulcrum seat assembly according to claim 3, characterized in that, The rocker arm has two bolt holes at the four corners of its core plate; the shape and size of the two first positioning holes match the shape and size of the two bolt holes.

6. The welding fixture for the bolster fixing lever fulcrum seat according to claim 1, characterized in that, Both the first and second card holders are U-shaped.

7. The welding fixture for the bolster fixing lever fulcrum seat according to claim 1, characterized in that, The first clamp is provided with a first auxiliary hole that mates with the first clamping screw; the second clamp is provided with a second auxiliary hole that mates with the second clamping screw.

8. The welding fixture for the bolster fixing lever fulcrum seat according to claim 1, characterized in that, The fixed lever fulcrum seat is provided with a round pin hole; the shape and size of the second positioning hole match the round pin hole.

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