Monorail vehicle frame side beam preassembly device

Abstract

The present invention discloses a monorail vehicle frame side beam preassembly device, characterized by comprising a transverse dimension control module for laterally limiting the side beam assemblies on both sides to the vehicle frame; and a longitudinal dimension control module for controlling the longitudinal position of the side beam assemblies relative to the vehicle frame. The monorail vehicle frame side beam preassembly device of the present invention has a simple structure, assists in side beam assembly, improves welding accuracy, and has strong practicality and promising application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicles, and more particularly relates to a monorail vehicle frame side beam preassembly device. Background Art

[0002] The side sill assemblies of monorail vehicle frames are the vehicle's primary connecting and load-bearing components, requiring not only excellent mechanical properties but also favorable dimensional characteristics. Unlike the flat assembly structure of traditional frames, the side sills in monorail vehicle frames form a 90° T-shaped structure with the base frame. This makes precise assembly and positioning difficult, resulting in significant angular distortion in the welds and making it difficult to ensure accurate and stable post-weld dimensional control. The post-weld dimensional condition of the frame directly affects the dimensions of the machined parts and the subsequent assembly of other components, such as the bogie springs, guide wheels, and running wheels. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and to provide a monorail vehicle frame side beam preassembly device which has a simple structure, assists in assembling side beams and improves welding accuracy.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the provided monorail vehicle frame side beam preassembly device is characterized by comprising a lateral dimension control module for laterally limiting the side beam assemblies on both sides on the vehicle frame; and a longitudinal dimension control module for controlling the longitudinal position of the side beam assemblies and the vehicle frame.

[0005] In order to make the above technical solution more detailed and specific, the present invention also provides the following further preferred technical solutions to obtain satisfactory practical effects:

[0006] The transverse size control module and the longitudinal size control module are detachably connected.

[0007] The transverse dimension control module includes a mounting base installed on a frame clamping tooling plate, a transverse support beam is provided on the mounting base, and first transverse adjustment screws are provided at both ends of the transverse support beam to support and limit between the side beam assemblies on both sides.

[0008] The mounting base plate is provided with a first transverse centerline and a first longitudinal centerline, the transverse support beam is provided with a second centering base plate, and the second centering base plate is provided with a second transverse centerline and a second longitudinal centerline.

[0009] A first positioning pin and a first mounting bolt are provided on the mounting base plate.

[0010] The longitudinal dimension control module comprises a limit frame, on which a longitudinal adjustment screw is provided.

[0011] The limiting frame includes a first lower crossbeam and a second lower crossbeam arranged at a lower portion and spaced apart in parallel, and also includes a first upper crossbeam and a second upper crossbeam arranged at a higher portion and spaced apart in parallel, wherein the first upper crossbeam and the second upper crossbeam are connected by a longitudinal beam.

[0012] The ends of the first lower cross beam and the second lower cross beam are both provided with a first longitudinal adjustment screw that is clamped and positioned below the side beam assembly on both sides; the ends of the first upper cross beam and the second upper cross beam are both provided with a second longitudinal adjustment screw that is clamped and positioned above the side beam assembly on both sides.

[0013] Mounting plates connected to the mounting base plate are provided on both sides of the first lower crossbeam and the second lower crossbeam, a second positioning pin and a second mounting bolt are provided on the mounting plate, and a fourth longitudinal center line is also provided on the mounting plate; a third centering base plate is provided between the first upper crossbeam and the second upper crossbeam, and a third transverse center line and a third longitudinal center line are provided on the third centering base plate.

[0014] The first transverse adjustment screw is supported and limited above the side beam assembly, and the first lower cross beam and the second lower cross beam are further provided with a second transverse adjustment screw that is supported and limited below the side beam assembly.

[0015] Compared with the prior art, the present invention has the following advantages: the monorail vehicle frame side beam preassembly device of the present invention has a simple structure, assists in side beam assembly, improves welding accuracy, has strong practicality and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a brief description of the contents and symbols in the drawings of this specification:

[0017] Figure 1 This is a schematic structural diagram of a monorail vehicle frame side beam preassembly device according to the present invention;

[0018] Figure 2 Schematic diagram of the structure of the lateral size control module in the present invention;

[0019] Figure 3 This is a structural diagram of the longitudinal size control module in the present invention;

[0020] Figure 4 This is a schematic diagram of the implementation process of the lateral size control module in the present invention;

[0021] Figure 5 This is a schematic diagram of the implementation process of the longitudinal size control module in the present invention;

[0022] Figure 6 It is a schematic diagram of the adjusting screw structure in the present invention.

[0023] The following are marked in the figure:

[0024] 1. Horizontal dimension control module, 11. Mounting base plate, 111. First horizontal center line, 112. First longitudinal center line, 113. First positioning pin, 114. First mounting bolt, 115. Second positioning pin hole, 116. Second mounting hole, 12. Horizontal support beam, 13. First horizontal adjustment screw, 14. Second centering base plate, 141. Second horizontal center line, 142. Second longitudinal center line, 15. Lifting ring, 2. Longitudinal dimension control module, 21. First lower beam, 2 2. Second lower crossbeam, 23. First upper crossbeam, 24. Second upper crossbeam, 25. Third centering base plate, 251. Third transverse centerline, 252. Third longitudinal centerline, 26. Mounting plate, 261. Second locating pin, 262. Second mounting bolt, 263. Fourth longitudinal centerline, 27. First longitudinal adjustment screw, 28. Second transverse adjustment screw, 29. Second longitudinal adjustment screw; 100. Vehicle frame, 200. Side beam assembly, 300. Frame clamping tooling plate. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0027] The monorail vehicle frame side beam preassembly device of the present invention is as follows: Figure 1 As shown in FIG, it includes a transverse dimension control module 1 for laterally limiting the side beam assemblies 200 on the vehicle frame 100; and a longitudinal dimension control module 2 for controlling the longitudinal position of the side beam assemblies 200 and the vehicle frame 100. To address the existing problems of difficult assembly and positioning of the side beam assemblies and the frame, poor precision, low efficiency, and significant welding angle distortion, the present invention provides a monorail vehicle frame side beam preassembly device that is simple to operate, accurately positions the side beam assemblies on both sides in corresponding positions on the vehicle frame, improves assembly efficiency, and significantly enhances welding precision.

[0028] In the present invention, Figure 2 、 3 As shown in , the transverse size control module 1 and the longitudinal size control module 2 are detachably connected, which is convenient for manufacturing, installation and separate limiting use.

[0029] In the present invention, Figure 2As shown in , the lateral dimension control module 1 includes a mounting base 11 mounted on a frame clamping fixture plate 300. A lateral support beam 12 is provided on the mounting base 11. First lateral adjustment screws 13 are provided at each end of the lateral support beam 12, supporting and restraining the side beam assemblies 200 on either side. A first lateral centerline 111 and a first longitudinal centerline 112 are defined on the mounting base 11. A second centering base 14 is provided on the lateral support beam 12, with a second lateral centerline 141 and a second longitudinal centerline 142 defined on the second centering base 14. During operation, the first lateral adjustment screws 13 on each side are adjusted to align with the adjacent side beam assemblies 200 to control the lateral arrangement dimensions of the side beam assemblies 200.

[0030] In the present invention, the mounting base 11 is provided with first locating pins 113 and first mounting bolts 114. When in use, the mounting base 11 of the lateral dimension control module 1 is positioned and mounted on the component clamping fixture plate 300, with the first locating pins 113 positioned. After positioning, the first mounting bolts 114 arranged at the four corners are tightened to secure the mounting.

[0031] In the present invention, Figure 3 As shown in , the longitudinal dimension control module 2 includes a limit frame with a longitudinal adjustment screw provided thereon. The limit frame includes a first lower crossbeam 21 and a second lower crossbeam 22 arranged below and spaced parallel to each other, and a first upper crossbeam 23 and a second upper crossbeam 24 arranged above and spaced parallel to each other. The first upper crossbeam 23 and the second upper crossbeam 24 are connected by a longitudinal beam, forming an integral frame with good structural stability.

[0032] In the present invention, Figure 3 、 5 As shown in the figure, the ends of the first lower cross beam 21 and the second lower cross beam 22 are provided with a first longitudinal adjustment screw 27 that is clamped and positioned below the side beam assembly 200 from both sides; the ends of the first upper cross beam 23 and the second upper cross beam 24 are provided with a second longitudinal adjustment screw 29 that is clamped and positioned above the side beam assembly 200 from both sides.

[0033] In the present invention, mounting plates 26 connected to the mounting base 11 are provided on both sides of the first lower crossbeam 21 and the second lower crossbeam 22. Mounting plates 26 are provided with second locating pins 261 and second mounting bolts 262, and a fourth longitudinal centerline 263 is also defined on the mounting plates 26. A third centering base plate 25 is provided between the first upper crossbeam 23 and the second upper crossbeam 24. A third transverse centerline 251 and a third longitudinal centerline 252 are defined on the third centering base plate 25. During use, the longitudinal dimension control module 2 is mounted on the mounting base 11. The second locating pin 261 on the mounting plate 26 is positioned and installed in the second locating pin hole 115 on the mounting base 11. The second mounting bolt 262 is then tightened and installed in the second mounting hole 116 on the mounting base to achieve a secure installation. During installation, ensure that the centerlines are aligned to ensure proper positioning of the device.

[0034] In the present invention, the first lateral adjustment screw 13 is supported and restrained above the side sill assembly 200. The first lower crossbeam 21 and the second lower crossbeam 22 are also provided with a second lateral adjustment screw 28, which is supported and restrained below the side sill assembly 200. The first lateral adjustment screw 13 is supported and restrained above the side sill assembly 200. The first longitudinal adjustment screw 27 and the second longitudinal adjustment screw 29 are clamped and positioned on either side of the side sill assembly 200. Adjusting these adjustment screws controls the longitudinal welding position of the side sill assembly 200, ensuring precise measurement and positioning. The second lateral adjustment screw 28 positions the lower end of the side sill assembly 200 against the vehicle frame 100. Once the position is stabilized, the side sill assembly 200 can be welded.

[0035] In the present invention, a pre-assembly positioning device for side beam components of a monorail vehicle frame includes a transverse dimension control module 1 and a longitudinal dimension control module 2. The transverse dimension control module 1 is formed by assembling and welding steel plates and steel pipes and then machining the entire unit. The upper surface of the second centering substrate 14 on the transverse dimension control module 1 is a machined surface, on which a second transverse center line 141 and a second longitudinal center line 142 are reproduced. The upper surface of the mounting substrate 11 of the transverse dimension control module 1 is a machined surface, on which a first transverse center line 111 and a first longitudinal center line 112 are reproduced. The second transverse center line 141 and the second longitudinal center line 142 are coplanar to form a transverse center plane; the lower surface of the mounting substrate 11 is a machined surface, the upper surface of the second centering substrate 14 is parallel to the lower surface of the mounting substrate 11 and a constant distance therefrom, a lifting ring 15 is installed on the second centering substrate 14, and the positions of a first locating pin 113, a first mounting bolt 114, a second locating pin hole 115, and a second mounting hole 116 are arranged on the mounting substrate 11 with the first transverse center line 111 and the first longitudinal center line 112 as references. The positioning pins and the positioning pin holes are arranged diagonally to facilitate accurate positioning. The upper surfaces of the two ends of the transverse support beam 12 of the transverse dimension control module 1 are installed with a first transverse adjustment screw (16) and a second transverse adjustment screw (17). The adjustment screw structure is as follows: Figure 6As shown in the figure, the adjustment is made by turning the screw, and the size scale is engraved on the rod body of the adjusting screw to control the precise adjustment.

[0036] In the present invention, the longitudinal dimension control module 2 is integrally machined after being assembled and welded from steel plates and steel pipes. The upper surface of the third centering base plate 25 of the longitudinal dimension control module 2 is a machined surface, replicating the third transverse centerline 251 and the third longitudinal centerline 252. The upper surface of the mounting plate 26 of the longitudinal dimension control module 2 is a machined surface, replicating the fourth longitudinal centerline 263 of the frame. The lower surface of the mounting plate 26 is also a machined surface. The upper surface of the third centering base plate 25 is parallel to the lower surface of the mounting plate 26 and a constant distance therebetween. A lifting ring 15 is mounted on the upper surface of the third centering base plate 25. A second locating pin 261 and a second mounting bolt 262 are provided relative to the third transverse centerline 251 and the fourth longitudinal centerline, corresponding to the second locating pin hole 115 and the second mounting hole 116 on the mounting base plate. The second locating pin 261 is positioned diagonally. A second longitudinal adjustment screw 29 is provided at both ends of the first upper crossbeam 23 and the second upper crossbeam 24 of the longitudinal dimension control module 2; a first longitudinal adjustment screw 27 is provided at both ends of the first lower crossbeam 21 and the second lower crossbeam 22, and a second transverse adjustment screw 28 is installed on the inner side surfaces of both ends of the first lower crossbeam 21 and the second lower crossbeam 22, and the adjustment screw body is engraved with size scales to control precise adjustment.

[0037] The first transverse adjustment screw 13 at the end of the transverse dimension control module can be adjusted laterally to achieve the centering of the transverse inner spacing at the upper end of the side beam assembly. A second transverse adjustment screw 28 is added on the inner side of the end of the longitudinal dimension control module 2 and can be adjusted laterally to achieve the centering of the transverse inner spacing at the lower end of the side beams at both ends.

[0038] The second longitudinal adjustment screws 29 at the ends of the first upper crossbeam 23 and the second upper crossbeam 24 of the longitudinal dimension control module 2 can be adjusted longitudinally to achieve longitudinal centering adjustment of the upper end of the side beam assembly. The first longitudinal adjustment screws 27 at the ends of the first lower crossbeam 21 and the second lower crossbeam 22 of the longitudinal dimension control module can also be adjusted longitudinally to achieve longitudinal centering adjustment of the lower end of the side beams at both ends.

[0039] like Figure 4 、 5 As shown in the figure, the transverse dimension control module 1 and the longitudinal dimension control module 2 are used in a step-by-step manner. The transverse dimension control module 1 is first assembled with the frame clamping tooling plate 300 to complete the transverse dimension adjustment. Then, the longitudinal dimension control module 2 is assembled to complete the transverse dimension adjustment of the lower end of the side beam and the longitudinal centering adjustment of the side beam. The transverse dimension control module 1 and the longitudinal dimension control module 2 can also be combined and used as a whole in combination with the frame clamping tooling plate 300.

[0040] like Figure 6As shown in the figure, all longitudinal and transverse adjustment screws are machined flat and engraved with metric size scales on the screw shaft to facilitate real-time observation and adjustment of dimensions.

[0041] The longitudinal dimension control module 2 is removed after the side beam assembly is completed to reserve space for subsequent full welding operations. The transverse dimension control module 1 does not interfere with the welding process and can be removed after the full welding operation. If the state is stable, it can also be removed before the full welding operation.

[0042] In the present invention, the adjustment screw shafts are machined flat and engraved with metric scales. The first transverse adjustment screws 13 at each end are located on the same central axis of the transverse center plane. The second transverse adjustment screw on the adjacent side is located on the same central axis parallel to the transverse center plane. The adjacent longitudinal adjustment screws are located on the same central axis parallel to the longitudinal center plane.

[0043] According to the actual angular deformation direction and size, the first transverse adjustment screw is adjusted during the pre-assembly of the side beam. The pre-assembly size can be adjusted to preset the reverse deformation before welding to offset the welding deformation and realize the control of the transverse welding angular deformation.

[0044] According to the actual angular deformation direction and size, the first longitudinal adjustment screw and the second longitudinal adjustment screw are adjusted during the pre-assembly of the side beam. The pre-assembly size can be adjusted to preset the anti-deformation before welding to offset the welding deformation and realize the control of the longitudinal welding angular deformation.

[0045] A method for pre-assembling a side member assembly of a monorail vehicle frame, such as Figure 4 、 5 As shown, the following steps are included:

[0046] Step 1: Rotate and adjust the two first transverse adjustment screws 13 on both sides to loosen them into place and reserve space for lifting.

[0047] Step 2: Hoist the side beam assembly 200 to be assembled to the relative position of the vehicle frame 100, hoist the transverse dimension control module 1 to the frame station of the side beam component to be assembled, position and assemble it to the frame clamping tooling plate 300 through the first positioning pin 113, and fasten it to the frame clamping tooling plate 300 through the first mounting bolt 114.

[0048] Step 3: Rotate and adjust the first longitudinal adjustment screw 27, the second longitudinal adjustment screw 29 and the second transverse adjustment screw 28 respectively to loosen them into place and reserve space for hoisting.

[0049] Step 4: hoist the longitudinal dimension control module 2 to the frame station of the side beam component to be assembled, position and assemble it to the transverse dimension control module 1 through the second positioning pin 261, and fasten it to the transverse dimension control module 1 through the second mounting bolt 262.

[0050] Step 5, adjust the first lateral adjustment screw 13 and the second lateral adjustment screw 28 according to the process size requirements, so that the distance between the side beam assembly 200 and the second longitudinal center line 142 meets the lateral size assembly requirements. If necessary, use the second longitudinal center line as the side beam reference to review the lateral distance between the side beam and the center.

[0051] Step 6: According to the process size requirements, the first longitudinal adjustment screw 27 and the second longitudinal adjustment screw 29 are adjusted symmetrically in groups, so that the side beam assembly 200 is longitudinally centered and symmetrically assembled, and the assembly size is checked according to the process requirements.

[0052] The present invention solves the problems of the existing technology such as the difficulty, poor precision, low efficiency and large welding angle deformation in the pre-assembly positioning of the side beams and the frame, and significantly improves the pre-assembly positioning precision and efficiency of the frame side beams. At the same time, it realizes the control of the welding angle deformation between the side beams and the frame, and realizes the stable and good control of the welding size of the frame side beams, providing a good working state for the subsequent machining process.

[0053] The monorail vehicle frame side beam preassembly device of the present invention has a simple structure, assists in assembling the side beams, improves welding accuracy, and has strong practicality and good application prospects.

[0054] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] The present invention is described above by way of example in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned manner. As long as various non-substantial improvements made using the method concept and technical solution of the present invention or direct applications to other occasions are made, they all fall within the scope of protection of the present invention.

Claims

1. A monorail vehicle frame side beam preassembly device, characterized in that: It includes a transverse dimension control module for laterally limiting the side beam assemblies on both sides on the vehicle frame; it is also provided with a longitudinal dimension control module for controlling the longitudinal position of the side beam assemblies and the vehicle frame; the transverse dimension control module and the longitudinal dimension control module are detachably connected; the transverse dimension control module includes a mounting base mounted on the frame clamping tooling plate, the mounting base is provided with a transverse support beam, and both ends of the transverse support beam are provided with a first transverse adjustment screw supporting and limiting the side beam assemblies on both sides; the mounting base is provided with a first transverse centerline and a first longitudinal centerline, the transverse support beam is provided with a second centering base plate, and the second centering base plate is provided with a second transverse centerline and a second longitudinal centerline; the The longitudinal dimension control module includes a limit frame, on which a longitudinal adjustment screw is provided; the limit frame includes a first lower crossbeam and a second lower crossbeam arranged at a lower portion and spaced parallel to each other, and also includes a first upper crossbeam and a second upper crossbeam arranged at a higher portion and spaced parallel to each other, and the first upper crossbeam and the second upper crossbeam are connected by a longitudinal beam; both sides of the first lower crossbeam and the second lower crossbeam are provided with mounting plates connected to the mounting substrate, the mounting plate is provided with a second positioning pin and a second mounting bolt, and the mounting plate is also provided with a fourth longitudinal center line; a third centering substrate is provided between the first upper crossbeam and the second upper crossbeam, and the third centering substrate is provided with a third transverse center line and a third longitudinal center line.

2. The monorail vehicle frame side beam preassembly device according to claim 1, characterized in that: A first positioning pin and a first mounting bolt are provided on the mounting base plate.

3. The monorail vehicle frame side beam preassembly device according to claim 1, characterized in that: The ends of the first lower cross beam and the second lower cross beam are both provided with a first longitudinal adjustment screw that is clamped and positioned below the side beam assembly on both sides; the ends of the first upper cross beam and the second upper cross beam are both provided with a second longitudinal adjustment screw that is clamped and positioned above the side beam assembly on both sides.

4. The monorail vehicle frame side beam preassembly device according to claim 3, characterized in that: The first transverse adjustment screw is supported and limited above the side beam assembly, and the first lower cross beam and the second lower cross beam are further provided with a second transverse adjustment screw that is supported and limited below the side beam assembly.

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