Positioning device for welding and mounting the cross beam of a three-component cast steel bogie.

Abstract

This utility model discloses a positioning device for welding the crossbeam support of a three-part cast steel bogie, comprising: a base, a vertical plate, a positioning block, stiffening plates, and a pad. The base has a groove; the vertical plate is a flat plate structure with a support portion and an embedding portion for embedding into the groove at its bottom; a right-angle notch is formed at one corner of the upper part of the vertical plate, the right-angle notch having a first horizontal portion and a first vertical portion; the positioning block has a second horizontal plate and a second vertical plate vertically connected; in use, the second horizontal plate is located above the first horizontal portion; the second vertical plate is in contact with the first vertical portion; multiple stiffening plates are located on both sides of the vertical plate, connected or in contact with the vertical plate, and the stiffening plates are connected to the bottom surface of the second horizontal plate; the pad is cuboid in shape and is disposed on the second horizontal plate; in use, the crossbeam support is located on the pad. This positioning device can achieve accurate positioning of the crossbeam support.

Description

Technical Field

[0001] This utility model relates to a positioning device for welding the crossbeam support of a three-part cast steel bogie. Background Technology

[0002] The three main components of a bogie are the basic bogie type for railway freight cars, which consists of two side frames and a bolster as its core components. The side frames serve as longitudinal supports and are dynamically connected to the wheelsets through axle box assemblies; the bolster is transversely mounted between the two side frames and is elastically supported by bolster spring assemblies.

[0003] The crossbeam is installed above the brake beam on the inner side of the side frame, close to and parallel to the bolster. Both ends are supported by crossbeam brackets on the side frame. It engages with the sensor valve contacts on the vehicle body via a crossbeam contact plate mechanism and is a crucial component of the vehicle's automatic empty / load adjustment system. This system is key to ensuring the rational distribution of braking force and providing appropriate braking force under different vehicle conditions.

[0004] To ensure effective contact and engagement between the crossbeam contact plate mechanism and the sensor valve contacts on the vehicle body, it is necessary to control the distance from the center of the crossbeam support to the center of the side frame, as well as the distance from the bottom of the crossbeam support to the spring surface of the side frame, to ensure accurate assembly of the crossbeam. Before welding, the crossbeam support needs to be positioned. However, traditional positioning methods typically involve scribing, which suffers from problems such as difficulty in controlling the scribing trajectory, inaccurate positioning, and low efficiency, making it difficult to ensure production schedules during mass production. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a positioning device for welding the crossbeam support of a three-part cast steel bogie.

[0006] The present invention achieves the above objectives by adopting the following technical solution.

[0007] This utility model provides a positioning device for welding and mounting the crossbeam of a three-piece cast steel bogie, including:

[0008] The base has a groove with an opening; in use, the base is placed on the side frame spring support, and the opening is in an upward vertical direction.

[0009] The upright plate is configured as a flat plate with a support portion and an insert portion for embedding grooves at its bottom; a right-angled trapezoidal notch is formed between the insert portion and the support portion; in use, with the plane containing the lower surface of the side frame spring support as the reference horizontal plane H, the bottom surface of the support portion is in contact with the reference horizontal plane H, and there is a distance between the bottom surface of the insert portion and the reference horizontal plane H; a right-angled notch is formed at one corner of the upper part of the upright plate, which is formed by a first horizontal portion and a first vertical portion, wherein the upper surface of the first horizontal portion is parallel to the reference horizontal plane H;

[0010] The positioning block has a second horizontal plate and a second vertical plate that are vertically connected; the dimension of the second horizontal plate along the thickness direction of the first horizontal portion is greater than the thickness of the first horizontal portion; the dimension of the second vertical plate along the thickness direction of the first vertical portion is greater than the thickness of the first vertical portion; the height of the second vertical plate is less than the height of the first vertical portion; in use, the second horizontal plate is located above the first horizontal portion, and the two are in contact; the second vertical plate is in contact with the first vertical portion, and their vertical center lines coincide.

[0011] The stiffening plates are multiple pieces, located on both sides of the vertical plate. They are connected to or attached to the vertical plate, and the stiffening plates are connected to the bottom surface of the second horizontal plate.

[0012] A cuboid-shaped pad is placed on the second horizontal plate; in use, the crossbeam support is positioned on the pad. This facilitates accurate positioning of the crossbeam support.

[0013] In this invention, the central axis of the base coincides with the central axis of the side frame spring support. The length direction of the groove in the base is the same as the length direction of the side frame. The positioning block is basically L-shaped and is fixed to the right-angle notch of the upright plate, requiring a parallelism and perpendicularity of 0.4. The positioning block is welded to the upright plate after being tightly attached, and is reinforced with stiffening plates to ensure safety and reliability. The thickness of the pad can be adjusted according to actual needs, and pads of various thicknesses can be prepared to meet specific requirements.

[0014] In this invention, after the embedding part is embedded into the groove of the base, it can be welded and fixed.

[0015] According to the positioning device for welding the crossbeam support of the three-component cast steel bogie described in this utility model, preferably, the base is cylindrical; the area of ​​the base is less than or equal to the area of ​​the side frame spring support; and the central axis of the base coincides with the central axis of the side frame spring support. This facilitates the accurate positioning of the crossbeam support.

[0016] According to the positioning device for welding the crossbeam support of the three-part cast steel bogie described in this utility model, preferably, the top surface of the vertical plate is parallel to the reference horizontal plane H; the surface of the second horizontal plate away from the second vertical plate is coplanar with the surface of the first horizontal part away from the first vertical part.

[0017] According to the positioning device for welding and mounting the crossbeam of a three-component cast steel bogie as described in this utility model, preferably:

[0018] Taking the plane containing the surface of the embedded part away from the support part as the reference vertical plane V, the distance between the surface of the support part away from the embedded part and the reference vertical plane V is less than the distance between the surface of the first horizontal part away from the first vertical part and the reference vertical plane V;

[0019] The upper corner of the upright plate forms a sloping structure R1, which intersects with the reference vertical plane V, forming an acute angle α between them. The acute angle α is set to be greater than 5° and less than 40°. This helps to save materials and facilitates the installation of the positioning device at the side frame without colliding with other components on the side frame.

[0020] According to the positioning device for welding the crossbeam support of the three-part cast steel bogie described in this utility model, preferably, in the use state, the portion of the surface of the first horizontal part that extends vertically downward away from the first vertical part is defined as the second vertical surface, and the height of the second vertical surface is less than the height of the first vertical part.

[0021] According to the positioning device for welding the crossbeam support of the three-part cast steel bogie described in this utility model, preferably, an inclined structure R2 is formed between the second vertical surface and the surface of the support part away from the embedded part. This inclined structure R2 intersects the plane containing the second vertical surface, forming an acute angle β between them. The acute angle β is set to be greater than or equal to 20° and less than or equal to 45°. This is beneficial for saving materials and for installing the positioning device at the side frame without colliding with other components on the side frame.

[0022] According to the positioning device for welding the crossbeam support of the three-component cast steel bogie described in this utility model, preferably, a weight-reducing hole is provided in the middle of the upright plate. This is beneficial for reducing the weight of the upright plate, saving materials, and reducing costs. The weight-reducing hole has an irregular octagonal structure.

[0023] According to the positioning device for welding the crossbeam support of the three-component cast steel bogie described in this utility model, preferably, the area of ​​the weight-reducing hole is greater than one-third and less than three-quarters of the area enclosed by the outer contour of the upright plate. This helps to save materials and reduce costs while maintaining the structural stability of the upright plate.

[0024] According to the positioning device for welding the crossbeam support of the three-component cast steel bogie described in this utility model, preferably, there are four stiffening plates; two stiffening plates are located on one side of the upright plate, and the other two stiffening plates are located on the other side of the upright plate; the two stiffening plates located on the same side of the upright plate are parallel to each other. This is beneficial to the stability of the positioning block.

[0025] According to the positioning device for welding the crossbeam support of a three-component cast steel bogie described in this utility model, preferably, the embedded part is perpendicular to the bottom of the groove; the surface roughness of the positioning block is not greater than 6.3 μm. The perpendicularity of the embedded part to the bottom of the groove is 0.4.

[0026] This utility model discloses a positioning device for welding the crossbeam support of a three-piece cast steel bogie. This device ensures accurate positioning of the crossbeam support, guarantees that the dimensions of the welding position meet standard requirements, and achieves accurate welding of the crossbeam support. This, in turn, enables effective contact and engagement between the crossbeam contact plate mechanism and the sensor valve contacts of the vehicle body. The positioning device of this utility model has a simple structure, is easy to use, improves production efficiency, meets the requirements of rapid mass production, and is conducive to widespread application. Attached Figure Description

[0027] Figure 1 This is a schematic diagram showing the relative position of the positioning device for welding the crossbeam support of a three-part cast steel bogie according to this utility model.

[0028] Figure 2 This is a schematic diagram of the vertical plate structure.

[0029] Figure 3 for Figure 1 A diagram showing the view from the right.

[0030] Figure 4 This is a schematic diagram showing the relative positions of the positioning device for welding the crossbeam support of the three-part cast steel bogie of this utility model, and the crossbeam support and side frame.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1-Base; 2-Upright plate; 21-Support part; 22-Embedded part; 23-Right-angled trapezoidal notch; 24-Right-angled notch; 241-First horizontal part; 242-First vertical part; 25-Weight-reducing hole; 26-Second vertical surface; 3-Stiffening plate; 4-Positioning block; 5-Padded block;

[0033] R1 refers to one inclined surface of the vertical plate; R2 refers to the other inclined surface of the vertical plate.

[0034] α is the acute angle formed between one inclined structure R1 of the vertical plate and the reference vertical plane V; β is the acute angle formed between another inclined structure R2 of the vertical plate and the plane containing the second vertical plane;

[0035] 100 - Crossbeam support; 200 - Side frame. Detailed Implementation

[0036] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0037] Example 1

[0038] Figure 1 This is a schematic diagram showing the relative position of the positioning device for welding the crossbeam support of a three-part cast steel bogie according to this utility model. Figure 2 This is a schematic diagram of the vertical plate structure. Figure 3 for Figure 1 A diagram showing the view from the right. Figure 4 This is a schematic diagram showing the relative positions of the positioning device for welding the crossbeam support of a three-part cast steel bogie, and the crossbeam support and side frame.

[0039] like Figures 1 to 4 As shown, the positioning device for welding the crossbeam support of the three-part cast steel bogie of this utility model includes a base 1, a vertical plate 2, a stiffening plate 3, a positioning block 4, and a pad block 5.

[0040] The base 1 has a groove with an opening. In use, the base 1 is placed on the side frame spring support, with the opening facing vertically upwards. The base 1 is cylindrical. The cross-sectional area of ​​the base 1 is less than or equal to the area of ​​the side frame spring support. The side frame spring support is located at the center of the side frame 200. The central axis of the base 1 coincides with the central axis of the side frame spring support.

[0041] The upright plate 2 is a flat plate structure. The bottom of the upright plate 2 has a support portion 21 and an insert portion 22 for embedding into a groove. A right-angled trapezoidal notch 23 is formed between the insert portion 22 and the support portion 21. In use, the notch of the right-angled trapezoidal notch 23 faces downwards. In use, with the plane containing the lower surface of the side frame spring support as the reference horizontal plane H, the bottom surface of the support portion 21 is in contact with the reference horizontal plane H, and there is a distance between the bottom surface of the insert portion 22 and the reference horizontal plane H. The insert portion 22 is embedded into the groove of the base 1 and fixedly connected. The insert portion 22 is perpendicular to the bottom of the groove, with a perpendicularity of 0.4. A right-angled notch 24 is formed at one corner of the upper part of the upright plate 2. This right-angled notch 24 is formed by a first horizontal portion 241 and a first vertical portion 242, wherein the upper surface of the first horizontal portion 241 is parallel to the reference horizontal plane H. If the plane containing the surface of the embedded part 22 away from the support part 21 is taken as the reference vertical plane V, then the distance between the surface of the support part 21 away from the embedded part 22 and the reference vertical plane V is less than the distance between the surface of the first horizontal part 241 away from the first vertical part 242 in the horizontal direction and the reference vertical plane V.

[0042] The other corner of the upper part of the upright plate 2 forms an inclined structure R1, which intersects with the reference vertical plane V, forming an acute angle α between them. The acute angle α is set to be greater than 5° and less than 40°, for example, it can be greater than 10° and less than 35°.

[0043] In use, the portion of the surface of the first horizontal portion 241 that extends vertically downward away from the first vertical portion 242 is defined as the second vertical surface 26, and the height of the second vertical surface 26 is less than the height of the first vertical portion 242.

[0044] Another inclined structure R2 is formed between the second vertical surface 26 and the surface of the support portion 21 away from the embedded portion 22. This inclined structure R2 intersects the plane containing the second vertical surface 26, forming an acute angle β between them. The acute angle β is set to be greater than or equal to 20° and less than or equal to 45°. This inclined structure R2 forms an obtuse angle with the surface of the support portion 21 away from the embedded portion 22.

[0045] A weight-reducing hole 25 is provided in the middle of the upright plate 2. The weight-reducing hole 25 has an irregular octagonal structure. The area of ​​the weight-reducing hole 25 is greater than one-third of the area enclosed by the outer contour of the upright plate 2 and less than three-quarters of the area enclosed by the outer contour of the upright plate 2. The top surface of the upright plate 2 is parallel to the reference horizontal plane H.

[0046] The straight line formed by the intersection of the top surface of the vertical plate 2 and the inclined structure R1 and the center point of the base 1 is parallel to the reference vertical plane V, that is, the central axis of the base 1 passes through the intersection of the top surface of the vertical plate 2 and the inclined structure R1.

[0047] The positioning block 4 has a second horizontal plate and a second vertical plate that are vertically connected. The dimension of the second horizontal plate along the thickness direction of the first horizontal portion 241 is greater than the thickness of the first horizontal portion 241. The dimension of the second vertical plate along the thickness direction of the first vertical portion 242 is greater than the thickness of the first vertical portion 242. The height of the second vertical plate is less than the height of the first vertical portion 242. In use, the second horizontal plate is located above the first horizontal portion 241. The second vertical plate is in contact with the first vertical portion 242, and their vertical center lines coincide. The surface of the second horizontal plate away from the second vertical plate is coplanar with the surface of the first horizontal portion 241 away from the first vertical portion 242.

[0048] The surface roughness of positioning block 4 is no greater than 6.3 μm.

[0049] There are multiple stiffening plates 3, located on both sides of the upright plate 2. They are connected to or attached to the upright plate 2, and the stiffening plates 3 are connected to the bottom surface of the second horizontal plate of the positioning block 4. Specifically, there are four stiffening plates 3; two stiffening plates 3 are located on one side of the upright plate 2, and the other two stiffening plates 3 are located on the other side of the upright plate 2; the two stiffening plates 3 located on the same side of the upright plate 2 are parallel to each other. In use, the outer contour of the stiffening plate 3 is formed by a rectangle and a right-angled trapezoid connected vertically. The hypotenuse of the right-angled trapezoid is away from the upright plate 2, and the upper base of the right-angled trapezoid is also the long side of the rectangle. The length of the upper base is greater than the length of the lower base of the right-angled trapezoid.

[0050] The pad 5 is rectangular in shape and is mounted on the second horizontal plate of the positioning block 4. In use, the crossbeam support 100 is located on the pad 5, and the central axis of the crossbeam support 100 passes through the center of the second horizontal plate of the positioning block 4.

[0051] The usage instructions for this positioning device are as follows:

[0052] When using a positioning device for welding and mounting the crossbeam of a three-piece cast steel bogie, such as... Figure 4 As shown, place the base 1 on the side frame spring support. Observe that the base 1 and the side frame spring support are in close contact, and the positioning device and the column surface of the side frame 200 have no longitudinal deviation. That is, the center of the base 1 is consistent with the center of the side frame 200. Place the pad 5 on the positioning block 4, and then place the cross beam support 100 on the pad 5. Ensure that the bottom and side surfaces of the cross beam support 100 are in close contact with the pad 5 and the second vertical plate of the positioning block 4, respectively. At this time, the assembly welding dimensions of the cross beam support 100 can be guaranteed. Then, spot weld the cross beam support 100 and the side frame 200 for positioning (the spot welding position should not affect the removal of the positioning device). After the spot welding is completed, remove the positioning device and then continue to complete the full welding of the cross beam support 100.

[0053] This utility model is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this utility model fall within the scope of this utility model.

Claims

1. A positioning device for welding and mounting a crossbeam support of a three-part cast steel bogie, characterized in that, include: The base has a groove with an opening; in use, the base is placed on the side frame spring support, and the opening is in an upward vertical direction. The upright plate is configured as a flat plate with a support portion and an insert portion for embedding grooves at its bottom; a right-angled trapezoidal notch is formed between the insert portion and the support portion; in use, with the plane containing the lower surface of the side frame spring support as the reference horizontal plane H, the bottom surface of the support portion is in contact with the reference horizontal plane H, and there is a distance between the bottom surface of the insert portion and the reference horizontal plane H; a right-angled notch is formed at one corner of the upper part of the upright plate, which is formed by a first horizontal portion and a first vertical portion, wherein the upper surface of the first horizontal portion is parallel to the reference horizontal plane H; The positioning block has a second horizontal plate and a second vertical plate that are vertically connected; the dimension of the second horizontal plate along the thickness direction of the first horizontal portion is greater than the thickness of the first horizontal portion; the dimension of the second vertical plate along the thickness direction of the first vertical portion is greater than the thickness of the first vertical portion; the height of the second vertical plate is less than the height of the first vertical portion. In use, the second horizontal plate is located above the first horizontal part, and the two are in contact; the second vertical plate is in contact with the first vertical part, and their vertical center lines coincide. The stiffening plates are multiple pieces, located on both sides of the vertical plate. They are connected to or attached to the vertical plate, and the stiffening plates are connected to the bottom surface of the second horizontal plate. A cuboid-shaped pad is disposed on the second horizontal plate; in use, the crossbeam support is located on the pad.

2. The positioning device of claim 1, wherein, The base is cylindrical; the area of ​​the base is less than or equal to the area of ​​the side frame spring support; the central axis of the base coincides with the central axis of the side frame spring support.

3. The positioning device of claim 1, wherein, The top surface of the vertical plate is parallel to the reference horizontal plane H; the surface of the second horizontal plate away from the second vertical plate is coplanar with the surface of the first horizontal part away from the first vertical part.

4. The positioning device according to claim 3, characterized in that: Taking the plane containing the surface of the embedded part away from the support part as the reference vertical plane V, the distance between the surface of the support part away from the embedded part and the reference vertical plane V is less than the distance between the surface of the first horizontal part away from the first vertical part and the reference vertical plane V; The other corner of the upper part of the vertical plate forms a sloping structure R1, which intersects with the reference vertical plane V, forming an acute angle α between them. The acute angle α is set to be greater than 5° and less than 40°.

5. The positioning device of claim 3, wherein, In use, the portion of the surface of the first horizontal part that extends vertically downward away from the first vertical part is defined as the second vertical surface, and the height of the second vertical surface is less than the height of the first vertical part.

6. The positioning device of claim 5, wherein, An inclined structure R2 is formed between the second vertical surface and the surface of the support portion away from the embedded portion. The inclined structure R2 intersects the plane containing the second vertical surface, and an acute angle β is formed between them. The acute angle β is set to be greater than or equal to 20° and less than or equal to 45°.

7. The positioning device of claim 1, wherein, The vertical plate has a weight-reducing hole in the middle.

8. The positioning device of claim 7, wherein, The area of ​​the weight-reducing hole is greater than one-third of the area enclosed by the outer contour of the upright plate and less than three-quarters of the area enclosed by the outer contour of the upright plate.

9. The positioning device of claim 1, wherein, There are four stiffening plates; two stiffening plates are located on one side of the upright plate, and the other two stiffening plates are located on the other side of the upright plate; the two stiffening plates located on the same side of the upright plate are parallel to each other.

10. The positioning device of claim 1, wherein, The embedded part is perpendicular to the bottom of the groove; the surface roughness of the positioning block is no greater than 6.3 μm.

Images