Bogie guide frame body welding deformation control device and method

Abstract

The present application relates to a kind of bogie guide frame body welding deformation control device and method, including frame, four corners of frame are equipped with positioning assembly, positioning assembly includes column, transverse positioning mechanism and longitudinal positioning mechanism, column is vertically fixed with frame, transverse positioning mechanism includes transverse positioning seat and transverse positioning piece, transverse positioning piece is screw-connected with first mounting seat, along frame longitudinal, the longitudinal positioning mechanism of two positioning assemblies on the side of frame includes longitudinal positioning seat, one side of longitudinal positioning seat is equipped with longitudinal positioning table, the other side is screw-connected with first longitudinal positioning piece, the longitudinal positioning mechanism of two positioning assemblies on the other side of frame includes second mounting seat, second mounting seat top is screw-connected with second longitudinal positioning piece, frame is also equipped with pressing mechanism, using the control device of the present application ensures the effect of bogie forming, improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of bogie processing technology, and specifically to a device and method for controlling welding deformation of bogie guide frames. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] In rail transit vehicles, some bogies employ the Linor damping system, where the guide frame welded to the bogie mates with the wheelset axle box to transmit loads and dampen vibrations. Welding the guide frame can cause deformation, resulting in the bogie's dimensions exceeding the design specifications. This necessitates either mechanical or flame welding followed by adjustment, or pre-machining the guide frame after welding to ensure the overall dimensional stability of the bogie frame. Both methods increase labor and energy costs in bogie production, impacting production efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a device and method for controlling the welding deformation of bogie guide frame, which ensures the overall dimensional accuracy of the bogie after welding, avoids subsequent processing, and improves production efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a bogie guide frame welding deformation control device, including a frame, with positioning components at the four corners of the frame. The positioning components include columns, a lateral positioning mechanism, and a longitudinal positioning mechanism. The columns are vertically fixed to the frame, and the top of the columns is used to cooperate with the spring bearing surface of the guide frame. The lateral positioning mechanism includes lateral positioning seats and lateral positioning members distributed laterally along the frame and arranged opposite to each other. The axis of the lateral positioning member is arranged laterally along the frame and threadedly connected to a first mounting seat. Along the longitudinal direction of the frame, the longitudinal positioning mechanism of the two positioning components on one side of the frame includes a longitudinal positioning seat. A longitudinal positioning platform is provided on one side of the longitudinal positioning seat, and a first longitudinal positioning member with an axis arranged along the longitudinal direction of the frame is threadedly connected on the other side. The longitudinal positioning mechanism of the two positioning components on the other side of the frame includes a second mounting seat. The top of the second mounting seat is threadedly connected to a second longitudinal positioning member with an axis arranged along the longitudinal direction of the frame. The frame is also provided with a clamping mechanism for applying pressure toward the frame to the bogie side beam.

[0007] Optionally, the frame is provided with a base plate at each of the four corners, and the base plate is equipped with a column, a lateral positioning mechanism and a longitudinal positioning mechanism.

[0008] Optionally, two columns are provided, which are distributed along the longitudinal direction of the frame. The bottom end of the column is fixed to the base plate, and the top end is provided with a positioning plate for contacting the spring support surface of the guide frame.

[0009] Optionally, the lateral positioning seat has a lateral positioning platform corresponding to the lateral positioning member on its side facing the lateral positioning member.

[0010] Optionally, the lateral positioning member is provided with a socket for inserting the rotating rod.

[0011] Optionally, both the first longitudinal positioning member and the second longitudinal positioning member are provided with insertion holes for inserting the rotating rod.

[0012] Optionally, the clamping mechanism includes a clamping rod fixedly connected to the frame, the clamping rod passing through a clamping plate, the clamping plate being used to contact the bogie side beam, and a clamping nut being threadedly connected to the clamping rod section above the clamping plate.

[0013] Optionally, the frame is provided with a tire-rotating connecting plate, which has connecting holes to connect with the positioner tire-rotating device.

[0014] Optionally, the ends of the lateral positioning member, the first longitudinal positioning member, and the second longitudinal positioning member that are in contact with the guide frame are provided with pressure plates.

[0015] Secondly, embodiments of the present invention provide a method for controlling welding deformation of a bogie guide frame, comprising the following steps:

[0016] The bogie with the spot-welded guide frame is hoisted so that the spring bearing platform of the guide frame fits with the top of the column, the outer cavity surface of the hollow cavity of the guide frame on one side of the bogie fits with the longitudinal positioning platform, and the side of the guide frame fits with the transverse positioning seat.

[0017] Rotate the first longitudinal positioning component and the second longitudinal positioning component. The first longitudinal positioning component abuts against the inner cavity surface of the hollow cavity in one side of the guide frame, and the second longitudinal positioning component abuts against the outer cavity surface of the hollow cavity in the other side of the guide frame. Apply a clamping force to the guide frame through the second longitudinal positioning component, so that the side beam of the bogie deforms and thus reserves the amount of shrinkage deformation after welding.

[0018] Rotate the lateral positioning component, and the lateral positioning component abuts against the guide frame body, cooperating with the lateral positioning seat to perform lateral positioning of the bogie. The clamping mechanism works to press the spring bearing surface of the guide frame body onto the top of the column.

[0019] Welding of the guide frame and bogie;

[0020] After welding is completed, rotate the first longitudinal positioning component, the second longitudinal positioning component, and the transverse positioning component to disengage them from the guide frame. Then, release the clamping mechanism and lift the bogie with the welded guide frame out.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The deformation control device and method of the present invention includes a column and a clamping mechanism, which can position the bogie with the spot-welded guide frame in a direction perpendicular to the frame. It also includes a lateral positioning mechanism for positioning the bogie laterally along the frame and a longitudinal positioning mechanism for positioning the bogie longitudinally along the frame. The longitudinal positioning mechanism includes a first longitudinal positioning component and a second longitudinal positioning component. Rotating the first and second longitudinal positioning components tightens the guide frame. The first longitudinal positioning component, in conjunction with the lateral positioning mechanism, fixes one end of the bogie. The bogie side beam deforms under the action of the second longitudinal positioning component to accommodate post-weld shrinkage deformation. After welding, the bogie side beam shrinks, ensuring the overall dimensions of the bogie meet requirements. This avoids subsequent mechanical or flame adjustments to the bogie after welding, or machining the guide frame after welding to accommodate pre-welded machining allowances. This reduces labor and energy costs and improves production efficiency.

[0023] 2. The deformation control device and method of the present invention, wherein the frame is provided with a rotating connecting plate, the rotating connecting plate is provided with a connecting hole to realize the connection with the rotating part of the positioner, the deformation control device can be connected to the rotating part of the positioner, and can be repositioned by the positioner, which facilitates the welding operation of the workers. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0026] Figure 2 This is a front view of the present invention in its usage state according to Embodiment 1;

[0027] Figure 3 This is a top view of the usage state of Embodiment 1 of the present invention;

[0028] Among them, 1. Seat plate, 2. Column, 3. Longitudinal square beam, 4. Transverse square beam, 5. Rotary tire connecting plate, 6. Positioning plate, 7. Transverse positioning seat, 8. Transverse positioning component, 9. Transverse positioning platform, 10. First mounting seat, 11. Longitudinal positioning seat, 12. Longitudinal positioning platform, 13. First longitudinal positioning component, 14. Second mounting seat, 15. Second longitudinal positioning component, 16. Pressure rod, 17. Pressure plate, 18. Pressure nut, 19. Pressure plate, 20. Conductor frame, 21. Bogie. Detailed Implementation

[0029] Example 1

[0030] This embodiment provides a bogie guide frame welding deformation control device. Guide frames are provided at both ends of the two side beams of the bogie, resulting in four guide frames for the bogie. Each guide frame has a U-shaped structure, including a first guide frame portion, a second guide frame portion located at the outer end of the first guide frame portion, and a third guide frame portion located at the inner end. The first guide frame portion is used for welding and fixing to the bogie. A cavity is formed between the second and third guide frame portions, which is used to house the wheelset axle box. The outer sides of the second and third guide frame portions have spring bearing surfaces. The structure of the bogie and guide frames can be achieved using existing technology and will not be described in detail here. Figures 1-3 As shown, the bogie guide frame welding deformation control device includes a frame, with seat plates 1 at the four corners of the frame. Positioning components are installed on the seat plates 1. The positioning components include columns 2, with the bottom of the columns 2 fixed to the frame and the top of the columns used to cooperate with the spring support surface. The frame is also provided with a clamping mechanism, which is used to cooperate with the top surface of the side beam of the bogie to apply pressure perpendicular to the side beam and toward the column 2, pressing the spring support surface of the guide frame onto the top of the column. The positioning components also include a lateral positioning mechanism and a longitudinal positioning mechanism. The lateral positioning mechanism is used to position the guide frame along the lateral direction of the frame and the bogie, and the longitudinal positioning mechanism is used to position the guide frame along the longitudinal direction of the frame and the bogie. The longitudinal direction is the length direction of the frame and the bogie, and the lateral direction is perpendicular to the longitudinal direction.

[0031] The frame is welded together from longitudinal square beams 3 and transverse square beams 4. Specifically, the frame includes two parallel longitudinal square beams 3, which are arranged along the longitudinal direction of the bogie, that is, along the length direction of the side beams of the bogie.

[0032] Four transverse square beams 4 are provided between the two longitudinal square beams 3. The transverse square beams 4 are welded and fixed perpendicularly to the longitudinal square beams 3. The two transverse square beams 4 located on the outer side are respectively set between the ends of the two longitudinal square beams 3 on the same side.

[0033] Two rotating tire connecting plates 5 are welded and fixed to the outer sides of the two transverse square beams 4 located in the middle. The rotating tire connecting plates 5 are provided with connecting holes for connecting with the rotating tire of the positioner.

[0034] A seat plate 1 is provided on the top surface at the intersection of the ends of the longitudinal square beam 3 and the transverse square beam 4. The seat plate 1 is a rectangular plate and is used to install positioning components.

[0035] Along the longitudinal direction of the frame, the two positioning components on one side of the frame are defined as the first positioning component, and the two positioning components on the other side are defined as the second positioning component.

[0036] The two first positioning components have the same structure. Taking one of them as an example, the first positioning component includes two columns 2, which are perpendicular to the base plate. The two columns 2 are distributed along the longitudinal direction of the frame and are located at the two ends of the base plate 1 along the longitudinal direction.

[0037] Preferably, the column 2 is made of square tube, the bottom end of the column 2 is welded and fixed to the base plate 1, and the top end is provided with a positioning plate 6, which is used to contact and cooperate with the spring support surface of the guide frame.

[0038] The area between the two columns 2 is equipped with a horizontal positioning mechanism and a vertical positioning mechanism.

[0039] Two lateral positioning mechanisms are provided, corresponding to the second guide frame section and the third guide frame section of the guide frame body, respectively.

[0040] The two lateral positioning mechanisms have the same structure. Taking the lateral positioning mechanism corresponding to the second guide frame as an example, the lateral positioning mechanism includes a lateral positioning seat 7 and a lateral positioning component 8 that are distributed laterally along the frame and arranged opposite to each other. The lateral positioning seat 7 is used to cooperate with one side of the guide frame along the lateral direction, and the lateral positioning component 8 is used to cooperate with the other side of the guide frame to achieve the lateral positioning of the guide frame.

[0041] The bottom end of the transverse positioning seat 7 is welded and fixed to the seat plate 1, and the top end is provided with a transverse positioning platform 9 facing the inner side of the transverse positioning component. The transverse positioning platform 9 is used to cooperate with the transverse positioning component 8.

[0042] The lateral positioning component 8 is a lateral positioning screw, which is made of a φ35mm T-type thread screw.

[0043] Furthermore, the transverse positioning element 8 is threaded onto the internal threaded sleeve on the top of the first mounting base 10, and the first mounting base 10 is fixed on the base plate 1.

[0044] The axis of the transverse positioning screw is set along the transverse direction of the frame. When in use, one side of the second guide frame is in contact with the transverse positioning table 9. By rotating the transverse positioning screw, the end of the transverse positioning screw can abut against the other side of the second guide frame, thereby achieving transverse positioning of the guide frame.

[0045] The transverse positioning mechanism corresponding to the third guide frame section has the same structure and working principle as the transverse positioning mechanism corresponding to the second guide frame section, and will not be described again here.

[0046] In the two first positioning components, the lateral positioning seat 7 is located on the same side relative to the lateral positioning member 8. When the first positioning component is engaged with the two guide frames on one side of the bogie, the lateral positioning table 9 of one first positioning component is engaged with the outer side of one guide frame, and the lateral positioning screw is engaged with the inner side of the guide frame. The lateral positioning table 9 of the other first positioning component is engaged with the inner side of the other guide frame, and the lateral positioning screw is engaged with the outer side of the guide frame. In use, the tightening force applied by the lateral positioning screws of the two first positioning components is in the same direction.

[0047] This configuration facilitates the hoisting of the bogie onto the deformation control device after the guide frame is spot-welded.

[0048] The longitudinal positioning mechanism includes a longitudinal positioning seat 11, the bottom end of which is fixedly connected to the seat plate 1. The longitudinal positioning seat 11 is located outside the area where the two transverse positioning mechanisms are located, and the longitudinal positioning seat 11 is located on the center line of the area between the transverse positioning seats and the transverse positioning components.

[0049] A longitudinal positioning platform 12 is provided on one side of the top end of the longitudinal positioning seat 11. The longitudinal positioning platform 12 is used to cooperate with the outer cavity surface of the cavity inside the guide frame on that side. An internal threaded sleeve is provided on the other side of the top end of the longitudinal positioning seat 11. A first longitudinal positioning member 13 is threadedly connected in the internal threaded sleeve.

[0050] The first longitudinal positioning component 13 adopts a first longitudinal positioning screw. Preferably, the first longitudinal positioning screw is made of a φ35mm T-type thread screw. Rotating the first longitudinal positioning screw can make the end of the first longitudinal positioning screw abut against the inner cavity surface of the cavity inside the guide frame.

[0051] Furthermore, the distance between the axis of the first longitudinal positioning screw and the seat plate 1 is greater than the distance between the transverse positioning screw and the seat plate 1, so that the transverse positioning mechanism will not affect the operation of the longitudinal positioning mechanism.

[0052] The second positioning component includes two columns 2, a horizontal positioning mechanism, and a vertical positioning mechanism. The columns 2 and the horizontal positioning mechanism are set up in the same way as the first positioning component, and will not be described again here. The only difference is the setting of the vertical positioning mechanism.

[0053] In this embodiment, the longitudinal positioning mechanism of the second positioning component includes a second mounting base 14. The bottom end of the second mounting base 14 is fixedly connected to the base plate 1. The second mounting base 14 is located inside the transverse positioning mechanism located on the outside, and is located on the center line of the area between the transverse positioning base and the transverse positioning member. The top of the second mounting base 14 is provided with an internal threaded sleeve, and the internal threaded sleeve is threadedly connected to the second longitudinal positioning member 15. In this embodiment, the second longitudinal positioning member 15 is a second longitudinal positioning screw. Preferably, the second longitudinal positioning screw is made of a φ35mm T-type threaded screw.

[0054] The second longitudinal positioning screw is used to fit and press against the outer cavity surface of the internal cavity of the side guide frame, causing a certain deformation of the side beam of the bogie.

[0055] In the second positioning assembly, the distance between the axis of the longitudinal positioning screw and the base plate 1 is greater than the distance between the axis of the transverse positioning screw and the base plate 1 to avoid the longitudinal positioning screw affecting the normal operation of the transverse positioning mechanism.

[0056] Each of the three longitudinal square beams between the first and second positioning components on the same side is provided with two clamping structures. The two clamping mechanisms are arranged symmetrically with respect to the center of the longitudinal square beam. Therefore, a total of four clamping mechanisms are provided in this embodiment.

[0057] The clamping mechanism includes two clamping rods 16, one of which is welded to the outer side of the longitudinal square beam 3 at its bottom end, and the other is welded to the inner side of the longitudinal square beam 3 at its bottom end.

[0058] Both clamping rods 16 pass through the clamping plate 17 located above the longitudinal square beam 3. The rod section of the clamping rod 16 located above the clamping plate 17 is threaded with a clamping nut 18. The clamping plate is used to contact the upper surface of the bogie side beam. When the clamping nut 18 is rotated, the clamping nut presses against the upper surface of the clamping plate 17. The clamping plate 17 can apply a force towards the frame direction to the bogie side beam, thereby pressing the spring bearing surface of the guide frame onto the positioning plate at the top of the column 2, thus realizing the positioning of the bogie and guide frame in a direction perpendicular to the frame.

[0059] Furthermore, the transverse positioning screw, the first longitudinal positioning screw, and the second longitudinal positioning screw are all provided with insertion holes, into which a rotating rod can be inserted, making it convenient for workers to rotate the transverse positioning screw, the first longitudinal positioning screw, and the second longitudinal positioning screw using the rotating rod.

[0060] Furthermore, the ends of the transverse positioning screw, the first longitudinal positioning screw, and the second longitudinal positioning screw that are in contact with the guide frame are all provided with pressure plates 19. The pressure plates 19 contact the guide frame to avoid squeezing damage to the guide frame.

[0061] In this embodiment, when the first longitudinal positioning member 13 and the second longitudinal positioning member 15 are rotated to press against the guide frame, the first longitudinal positioning member 13 can cooperate with the longitudinal positioning table 12 and the lateral positioning mechanism to fix one end of the bogie. The bogie side beam can deform under the action of the second longitudinal positioning member 15 to reserve the shrinkage deformation after welding. After welding, the bogie side beam shrinks, so that the overall size of the bogie meets the requirements. This avoids the subsequent mechanical or flame adjustment of the bogie after welding or the overall machining of the guide frame after welding with reserved machining allowance. This reduces labor costs and energy costs and improves production efficiency.

[0062] In this embodiment, the welds on both sides of a single guide frame are symmetrically distributed in the transverse direction, and the amount of deformation can be controlled by the welding sequence. Therefore, the bogie does not need to reserve the amount of deformation and shrinkage after welding in the transverse direction.

[0063] Example 2

[0064] This embodiment provides a method for using the bogie guide frame welding deformation control device described in Embodiment 1, including the following steps:

[0065] Step 1: The deformation control device for the entire bogie guide frame is welded and installed on the rotating tire of the positioner via the rotating tire connecting plate. An existing H-type double-column positioner can be used; its specific structure will not be described in detail here.

[0066] Step 2: Hoist the bogie 21 with the spot-welded guide frame 20 onto the bogie guide frame welding deformation control device described in Example 1. Specifically:

[0067] Place the spring support surface of the guide frame 20 onto the positioning plate 6 at the top of the column 2, and move the bogie horizontally in the transverse direction so that the transverse positioning platform 9 fits against the side of the guide frame 20. Move the bogie horizontally in the longitudinal direction so that the longitudinal positioning platform 12 fits against the outer cavity surface of the inner cavity of the guide frame 20 on one side.

[0068] Step 3: Rotate the first longitudinal positioning screw, and then rotate the second longitudinal positioning screw, so that the first longitudinal positioning screw abuts against the inner side of the cavity inside the guide frame on this side and is pressed tightly, and the second longitudinal positioning screw abuts against the outer side of the cavity inside the guide frame on the same side and is pressed tightly. At the same time, the second longitudinal screw continues to rotate, pushing the guide frame 20, which in turn causes the bogie side beam to bend and deform. The amount of deformation is equal to the shrinkage deformation of the side beam after welding. The amount of advancement of the second longitudinal screw can be determined according to actual needs, and will not be described in detail here.

[0069] Step 4: Rotate the lateral positioning screw so that the lateral positioning screw cooperates with the lateral positioning table 9 to press the guide frame 20, and perform lateral positioning of the guide frame 20. Place the clamping plate 17 on the upper surface of the bogie side beam, and the clamping rod passes through the clamping plate 17. Rotate the clamping nut 18 so that the clamping plate 17 presses the side beam of the bogie, and the spring bearing surface of the guide frame 20 is pressed against the positioning plate at the top of the column.

[0070] Step 5: Weld the guide frame 20 and the bogie 21. During the welding process, a positioner is used to reposition the bogie 21 and the guide frame 20 to facilitate welding.

[0071] Step 5: After welding is completed, remove the clamping nut 18 and clamping plate 17 of the clamping mechanism, rotate the first longitudinal positioning screw, the second longitudinal positioning screw and the transverse positioning screw to disengage them from the guide frame 20, and then lift out the welded bogie 21.

[0072] The deformation control device of this embodiment can control the deformation of the bogie after welding the guide frame, and obtain a better forming effect. It is suitable for the welding deformation control of rail transit bogies, such as the application of railway freight cars and engineering vehicle bogies.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for controlling welding deformation of a bogie guide frame, characterized in that, The system includes a frame with positioning components at its four corners. Each positioning component comprises a column, a transverse positioning mechanism, and a longitudinal positioning mechanism. The columns are vertically fixed to the frame, and each column has a positioning plate at its top. The positioning plate contacts the spring support surface of the guide frame. The transverse positioning mechanism includes transverse positioning seats and transverse positioning members distributed laterally along the frame and arranged opposite each other. The axis of the transverse positioning member is arranged laterally along the frame and threadedly connected to a first mounting seat. Along the longitudinal direction of the frame, the longitudinal positioning mechanism of the two positioning components on one side of the frame includes a longitudinal positioning seat. One side of the longitudinal positioning seat has a longitudinal positioning platform, and the other side is threadedly connected to a first longitudinal positioning member whose axis is arranged longitudinally along the frame. The two positioning components on the other side of the frame... The longitudinal positioning mechanism includes a second mounting base, and a second longitudinal positioning component with its axis arranged longitudinally along the frame is threadedly connected to the top of the second mounting base. When the first longitudinal positioning component and the second longitudinal positioning component are rotated to press against the guide frame, the first longitudinal positioning component can cooperate with the longitudinal positioning table and the lateral positioning mechanism to fix one end of the bogie. The bogie side beam can deform under the action of the second longitudinal positioning component to allow for the shrinkage deformation after welding. The frame is also provided with a clamping mechanism for applying pressure toward the frame to the bogie side beam. The clamping mechanism includes a clamping rod fixedly connected to the frame. The clamping rod passes through a clamping plate, which is used to contact the bogie side beam. A clamping nut is threadedly connected to the clamping rod section above the clamping plate.

2. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, The frame is provided with a base plate at each of the four corners, and the base plate is equipped with a column, a horizontal positioning mechanism and a vertical positioning mechanism.

3. The bogie guide frame welding deformation control device as described in claim 2, characterized in that, Two columns are provided, which are distributed along the longitudinal direction of the frame, and the bottom end of the columns is fixed to the base plate.

4. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, The side of the lateral positioning seat facing the lateral positioning member is provided with a lateral positioning platform corresponding to the lateral positioning member.

5. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, The lateral positioning member is provided with a socket for inserting the rotating rod.

6. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, Both the first longitudinal positioning member and the second longitudinal positioning member are provided with insertion holes for inserting the rotating rod.

7. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, The frame is provided with a tire-rotating connecting plate, which has connecting holes to connect with the positioner tire-rotating device.

8. The bogie guide frame welding deformation control device as described in claim 1, characterized in that, The transverse positioning component, the first longitudinal positioning component, and the second longitudinal positioning component are provided with pressure plates at their ends that contact the guide frame.

9. A method of using the bogie guide frame welding deformation control device according to any one of claims 1-8, characterized in that, Includes the following steps: The bogie with the spot-welded guide frame is hoisted so that the spring bearing platform of the guide frame fits with the top of the column, the outer cavity surface of the hollow cavity of the guide frame on one side of the bogie fits with the longitudinal positioning platform, and the side of the guide frame fits with the transverse positioning seat. Rotate the first longitudinal positioning component and the second longitudinal positioning component. The first longitudinal positioning component abuts against the inner cavity surface of the hollow cavity in one side of the guide frame, and the second longitudinal positioning component abuts against the outer cavity surface of the hollow cavity in the other side of the guide frame. Apply a clamping force to the guide frame through the second longitudinal positioning component, so that the side beam of the bogie deforms and thus reserves the amount of shrinkage deformation after welding. Rotate the transverse positioning component, and the transverse positioning component abuts against the guide frame body, cooperating with the transverse positioning seat to perform transverse positioning of the bogie. The clamping mechanism works to press the spring bearing surface of the guide frame body onto the top of the column. Welding of the guide frame and bogie; After welding is completed, rotate the first longitudinal positioning component, the second longitudinal positioning component, and the transverse positioning component to disengage them from the guide frame. Then, release the clamping mechanism and lift the bogie with the welded guide frame out.

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