A general-purpose welding equipment for DRT digital rail vehicle bodies

Abstract

This invention discloses a universal welding equipment for DRT digital rail vehicle bodies, including a ladder, side wall limiting seats, roof limiting seats, ground rails, adjustable beams, support seats, air spring positioning seats, and high-floor area air spring positioning seats. The side wall limiting seats and roof limiting seats are located on the ladder, providing positioning and fixing for the side walls and roof. Below the ladder is a ground rail, on which movable, adjustable beams are mounted. Support seats and air spring positioning seats are mounted on both ends of the adjustable beams to position the intermediate car chassis; alternatively, one adjustable beam has a support seat and air spring positioning seat, and the other adjustable beam has a high-floor area air spring positioning seat to position the head car chassis. This invention allows the head car and intermediate cars to share a single set of tooling, saving space and cost. This invention only requires changing the air spring positioning seats according to the new car model, eliminating the need for significant additional effort and expense, and can be considered a universal welding tooling for various DRT car models.

Description

Technical Field

[0001] This invention belongs to the field of rail vehicle body manufacturing technology, and relates to a general equipment for welding DRT digital rail vehicle bodies. Background Technology

[0002] With the increasing demand for multi-track trains, their models are constantly being updated and upgraded, from the early T1 line to the current T2 and T6 lines. Along with this, the car body frame is also being updated and optimized. The car body frame is the main load-bearing component of the vehicle, not only housing the exterior and interior trim and glass, but also connecting the bogie frame. Various parameters of the car body frame will affect the subsequent assembly of electrical components. The car body frame includes several major components: the roof assembly, side wall assembly, end wall assembly, underframe assembly, and driver's cab assembly. Therefore, the design and development of welding fixtures for the vehicle body is to rationally control the car body dimensions to meet design requirements, improve the quality of mass production, and ensure that different models can share the same components. Summary of the Invention

[0003] This invention provides a universal welding equipment for DRT digital rail vehicle bodies. It utilizes the bogie interface for underframe positioning, using the underframe as a reference, and then sequentially positions the side walls, end walls, and roof using tooling to ensure the flatness of the side walls, the verticality of the end walls, and the height of the roof. Furthermore, the tooling allows for rapid switching of positioning references for different vehicle models, enabling alternating production of intermediate and lead cars. Both lead and intermediate cars from lines T1 to T6 are produced using this equipment, and future projects can also utilize it, significantly reducing costs and achieving "multi-purpose functionality." This invention demonstrates its extremely high versatility.

[0004] The technical solution adopted in this invention is:

[0005] A general-purpose welding equipment for DRT digital rail vehicle body assembly includes a climbing platform, side wall limiting seats, roof limiting seats, ground rails, adjustable beams, support seats, and air spring positioning seats or air spring positioning seats in the high floor area.

[0006] The elevated platform includes a platform, a support beam, and a staircase. The support beam is located below the platform to support it.

[0007] The side wall limiting seat and the roof limiting seat are located on the climbing ladder platform and are used to position and fix the side wall and roof of the vehicle body;

[0008] The platform is equipped with a ground track below it, and an adjustable beam with movable position is vertically installed on the ground track. The adjustable beam at both ends is equipped with the support seat and the air spring positioning seat for positioning the intermediate car chassis; or the adjustable beam at one end is equipped with the support seat and the air spring positioning seat, and the adjustable beam at the other end is equipped with the high floor area air spring positioning seat for positioning the head car chassis.

[0009] Furthermore, the lower surface of the adjustable beam is provided with two grooves corresponding to the positions of the two ground tracks. These grooves match the upper surface of the ground tracks, allowing the adjustable beam to move on the ground tracks. The upper surface of the adjustable beam is provided with a T-slot, which facilitates the movement of the support seat, air spring positioning seat, or high floor area air spring positioning seat installed on the adjustable beam.

[0010] Furthermore, the structure for positioning the intermediate vehicle chassis also includes a pressure plate, an auxiliary support, and a leveling pad, which together form the first and second ends of the structure for positioning the intermediate vehicle chassis.

[0011] One end: The adjustable beam has pressure plates at both ends to press the base frame; the outermost adjustable beam is provided with auxiliary support and equal height pads; the second outermost adjustable beam is provided with support seat and air spring positioning seat;

[0012] Two of the adjustable beams are provided with pressure plates at both ends to press the base frame; the outermost adjustable beam is provided with auxiliary support, equal height pads and air spring positioning seats; a support seat is provided between the second outermost adjustable beam and the outermost adjustable beam.

[0013] Furthermore, the positioning of the head car chassis includes a high floor area and a low floor area, with the low floor area having the same two ends as the intermediate car chassis; the high floor area also includes a front end beam support, a clamping block, an auxiliary support, a pressure plate, and a tie rod, with pressure plates at both ends of the adjustable beam to clamp the chassis; the frontmost adjustable beam is equipped with a front end beam support and a clamping block, and the next to the frontmost adjustable beam is equipped with a high floor area air spring positioning seat, a tie rod, and an auxiliary support.

[0014] Furthermore, the support beam is erected on the ground by bolts or welding; the platform is fixed to the support beam by bolts; the staircase is located at one end of the platform, and the upper end of the staircase is connected to the platform; the platform is also equipped with a guardrail, which is connected to the side of the platform by bolts.

[0015] Furthermore, the side wall limiting seats and the roof limiting seats are symmetrically arranged on the climbing ladder.

[0016] Furthermore, the side wall limiting seat includes a support column, a side wall tightening device, an upper limit support, and a side wall telescopic beam. The support column is fixed on the platform on both sides. The side wall telescopic beam is vertically installed at the upper end of the support column. The upper part of the front end of the side wall telescopic beam is provided with a side wall tightening device, which can tighten the side wall. The front end of the side wall telescopic beam is provided with an upper limit support, which can provide positioning support for the upper and lower openings of the side wall.

[0017] Furthermore, the roof limiting seat includes a support column, a roof telescopic beam, and a limiting and tightening device. The support column is fixed on the platforms on both sides, and the roof telescopic beam is vertically installed at the upper end of the support column. The front end of the roof telescopic beam is equipped with a limiting and tightening device to tighten the end of the roof.

[0018] Compared with traditional vehicle body tooling, the advantages of this invention are mainly reflected in:

[0019] (i) Traditional car body assembly is divided into two sets of tooling, one for assembling the lead car and one for assembling the intermediate car, which takes up space and requires a large investment; while the equipment of this invention uses one set of tooling for both the lead car and the intermediate car, which can save space and costs.

[0020] (ii) Traditional tooling does not have the function of quick positioning switching, and installation and disassembly are very cumbersome; the equipment of this invention only needs to replace a few positioning seats to meet the tooling changes brought about by vehicle model switching.

[0021] (III) Traditional tooling requires a lot of modification time and money to meet the needs of other models; the equipment of this invention only needs to replace the air spring positioning seat according to the new model, without the need to invest a lot of effort and money again, and can be called a universal welding tooling for various models of multiple rails. Attached Figure Description

[0022] Figure 1 This is a perspective view of the equipment of the present invention;

[0023] Figure 2 This is a side view of the equipment of the present invention;

[0024] Figure 3 This is a schematic diagram of the side wall limiting seats and the roof limiting seats placed on the platform;

[0025] Figure 4 This is an enlarged view of the side wall limiting seat;

[0026] Figure 5 This is an enlarged view of the roof limit seat;

[0027] Figure 6 This is a schematic diagram of the positioning of the intermediate chassis in the equipment of the present invention;

[0028] Figure 7 This is a schematic diagram of the positioning of the underframe of the lead car in the equipment of this invention;

[0029] Figure 8 This is a schematic diagram of an adjustable beam;

[0030] Figure 9 Here are the positions and positioning diagrams of the intermediate car air spring positioning seat: (a) is a position diagram of the air spring at the first end of the intermediate car (excluding the air spring positioning seat); (b) is a positioning diagram of the air spring positioning seat at the first end of the intermediate car (including the air spring positioning seat and the support seat).

[0031] Figure 10 Here are the location and positioning diagram of the air spring positioning seat in the high floor area of ​​the lead car: (a) is a schematic diagram of the location of the air spring in the high floor area of ​​the lead car (excluding the air spring positioning seat in the high floor area); (b) is a schematic diagram of the positioning of the air spring positioning seat in the high floor area of ​​the lead car (including the air spring positioning seat in the high floor area).

[0032] Figure 11 This is a schematic diagram of the air spring positioning seat for the intermediate car;

[0033] Figure 12 This is a schematic diagram of the air spring positioning seat in the high floor area of ​​the lead car;

[0034] Figure 13 This is a schematic diagram of the welding assembly of the equipment of the present invention with respect to the intermediate car;

[0035] Figure 14 This is a schematic diagram of the welding assembly of the equipment of the present invention with respect to the head car;

[0036] Among them, 1. Climbing platform, 11. Stairs, 12. Support beam, 13. Platform, 14. Guardrail;

[0037] 2. Side wall limiting seat; 21. Side wall tightening device; 22. Upper limit support; 23. Side wall telescopic beam.

[0038] 3. Roof limiting seat; 31. Roof telescopic beam; 32. Limiting and tightening device;

[0039] 4. Ground track; 5. Adjustable beam.

[0040] 6. Loose spring positioning seat; 61. First positioning pin; 62. Second positioning pin; 63. First positioning surface;

[0041] 7. High floor area air spring positioning seat; 71. Third positioning pin; 72. Second positioning surface;

[0042] 8. Pressure plate, 9. Tie rod, 10. Support seat, 11. Auxiliary support, 12. Equal height pad, 13. Front end beam support seat, 14. Clamping block. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] The general equipment for welding the body of the DRT digital rail vehicle in this embodiment includes a ladder 1, a side wall limiting seat 2, a roof limiting seat 3, a ground track 4, an adjustable beam 5, a support seat 10, an air spring positioning seat 6, and an air spring positioning seat for the high floor area 7.

[0045] Among them, such as Figure 1 and Figure 2As shown, the climbing platform 1 includes a staircase 11, a support beam 12, a platform 13, and a guardrail 14. The staircase 11 is located at one end of the climbing platform 1, and the upper end of the staircase 11 is connected to the platform 13. The support beam 12 is erected on the factory floor by expansion bolts and is used to support the platform 13. The platform 13 is connected and fixed to the support beam 12 by bolts. The guardrail 14 is set on the side of the platform 13 and is connected and fixed to the side of the platform 13 by bolts. When the equipment needs to be dismantled or moved to another location, the guardrail 14 can be disassembled into smaller parts for easy transportation.

[0046] When assembling the side wall assembly and the roof assembly, two roof limiting seats 3 and four side wall limiting seats 2 are required. The two roof limiting seats 3 and the four side wall limiting seats 2 are symmetrically fixed on the platform 13.

[0047] Specifically, the side wall limiting seat 2 includes a support column, a side wall tightening device 21, an upper limit support 22, and a side wall telescopic beam 23. The support column is fixed on the platform 13 on both sides. The side wall telescopic beam 23 is vertically installed at the upper end of the support column. The upper part of the front end of the side wall telescopic beam 23 is provided with a side wall tightening device 21, which can tighten the side wall. The front end of the side wall telescopic beam 23 is provided with an upper limit support 22, which can provide positioning support for the upper and lower openings of the side wall.

[0048] When assembling the side wall, the upper and lower openings of the side wall are positioned by the upper limit support 22 of the side wall limiting seat 2 to ensure the height of the side wall. The side wall is tightened by the side wall clamping device 21 to ensure the flatness, verticality and vehicle width of the same side wall.

[0049] The roof limiting seat 3 includes a support column, a roof telescopic beam 31, and a limiting and tightening device 32. The support column is fixed on the platform 13 on both sides. The roof telescopic beam 31 is vertically installed at the upper end of the support column. The front end of the roof telescopic beam 31 is provided with a limiting and tightening device 32 to tighten the end of the roof.

[0050] When assembling the roof, the first and second sides of the roof only need to be flush with the side wall, and the ends of the roof can be positioned and tightened in the length direction using the roof limit seat 3.

[0051] Below the climbing platform 1, there are two parallel ground tracks 4. Multiple adjustable beams 5 are vertically mounted on the two ground tracks 4, and each adjustable beam 5 can be moved freely on the ground track 4. Two grooves are provided on the lower surface of the adjustable beam 5 and corresponding to the positions of the two ground tracks 4. The grooves match the upper surface of the ground track 4, so that the adjustable beam 5 can move on the ground track 4.

[0052] Moreover, such as Figure 8 As shown, the upper surface of the adjustable beam 5 is provided with a T-shaped groove, so the positioning seat, support seat 10 and other structures installed on the upper surface of the adjustable beam 5 can be moved or replaced at will.

[0053] like Figure 6 As shown, the intermediate chassis positioning fixture includes a first position end and a second position end. Figure 6 The left side is a one-digit terminal, and the right side is a two-digit terminal.

[0054] One end of the intermediate car chassis positioning fixture includes the aforementioned ground track 4 and adjustable beam 5, as well as a spring-loaded positioning seat 6, support seat 10, pressure plate 8, auxiliary support 11, and leveling pad 12 mounted on the adjustable beam 5; wherein, pressure plates 8 are provided at both ends of the adjustable beam 5. Figure 6 Two adjustable beams 5 (without pressure plate 8) starting from the left end and one adjustable beam 5 on the rightmost side are used to tighten the base frame. The outermost adjustable beam 5 is equipped with an auxiliary support 11 and a leveling block 12. Next to the outermost adjustable beam 5 are a support seat 10 and a spring-loaded positioning seat 6. The structure of the spring-loaded positioning seat 6 is as follows... Figure 11 As shown.

[0055] The second-position end of the intermediate car underframe positioning fixture has the same function and similar structure as the first-position end component mentioned above, differing only in the location of the support seat 10 and the air spring positioning seat 6. See details... Figure 6 As shown, it will not be elaborated further here.

[0056] like Figure 7 As shown, the positioning fixture for the headcar underframe includes a high-floor area and a low-floor area, wherein... Figure 7 The left side is the high floor area, and the right side is the low floor area.

[0057] The high-floor area of ​​the headcar underframe positioning fixture includes the aforementioned ground track 4 and adjustable beam 5, as well as a high-floor area air spring positioning seat 7, pressure plate 8, tie rod 9, auxiliary support 11, front end beam support seat 13, and clamping block 14, all mounted on the adjustable beam 5. Pressure plates 8 are located at both ends of the adjustable beam 5. Figure 7 The four adjustable beams 5 from the left end and the rightmost adjustable beam 5 (without pressure plate 8) are used to tighten the base frame. Figure 7 The leftmost adjustable beam 5 is equipped with a front end beam support 13 and a clamping block 14. The three adjustable beams 5 next to the outermost ones are equipped with high-floor area air spring positioning seats 7, tie rods 9, and auxiliary supports 11. The structure of the high-floor area air spring positioning seat 7 is as follows: Figure 12 As shown.

[0058] The low floor area of ​​the positioning fixture for the lead car underframe is the same as the two ends of the positioning fixture for the intermediate car underframe described above, so it will not be described again here.

[0059] The positioning fixtures for the intermediate car and the lead car chassis can be switched quickly and accurately. Simply replace the spring-loaded positioning seat 6 and support seat 10 at one end of the intermediate car with the spring-loaded positioning seat 7 in the high-floor area of ​​the lead car. The change can be accomplished by moving the adjustable beam 5. Figure 6 The three adjustable beams 5 on the left end and their air spring positioning seats 6 and support seats 10 on top of them need to be replaced; mainly... Figure 7 (Replace the four adjustable beams 5 at the left end and the high floor area air spring positioning seat 7 above them). After all positioning adjustments are completed, place the base frame into the fixture and tighten the pressure plates 8 at each position to complete the positioning.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of the present invention in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of the present invention.

Claims

1. A universal welding equipment for DRT digital rail vehicle body assembly, characterized in that, The general equipment for welding the vehicle body includes a ladder, side wall limiting seat, roof limiting seat, ground rail, adjustable beam, support seat, and air spring positioning seat or high floor area air spring positioning seat. The elevated platform includes a platform, a support beam, and a staircase. The support beam is located below the platform to support it. The side wall limiting seat and the roof limiting seat are located on the climbing ladder platform and are used to position and fix the side wall and roof of the vehicle body; Below the climbing platform is a ground track, on which vertically mounted adjustable beams are installed. Each adjustable beam at both ends is equipped with a support seat and a spring-loaded positioning seat for positioning the intermediate car chassis; alternatively, one adjustable beam has the support seat and spring-loaded positioning seat, while the other adjustable beam has a spring-loaded positioning seat for the high-floor area, for positioning the head car chassis. The side wall limiting seat includes a support column, a side wall clamping device, an upper limit support, and a side wall telescopic beam. The support column is fixed on the platform on both sides. The side wall telescopic beam is vertically installed at the upper end of the support column. The upper part of the front end of the side wall telescopic beam is provided with a side wall clamping device, which can clamp the side wall. The front end of the side wall telescopic beam is provided with an upper limit support, which can provide positioning support for the upper and lower openings of the side wall. The roof limiting seat includes a support column, a roof telescopic beam, and a limiting and tightening device. The support column is fixed to the platforms on both sides. The roof telescopic beam is vertically installed at the upper end of the support column. The front end of the roof telescopic beam is equipped with a limiting and tightening device to tighten the end of the roof. The structure for positioning the intermediate underframe also includes pressure plates, auxiliary supports, and leveling blocks, which together form the first and second ends of the structure for positioning the intermediate underframe. In the first end: the adjustable beam has pressure plates at both ends to press the underframe; the outermost adjustable beam has auxiliary supports and leveling blocks; the second outermost adjustable beam has a support seat and a spring-loaded positioning seat. In the second end: the adjustable beam has pressure plates at both ends to press the underframe; the outermost adjustable beam has auxiliary supports, leveling blocks, and spring-loaded positioning seats; the second outermost adjustable beam and the outermost adjustable beam have a support seat. The positioning of the head car chassis includes a high floor area and a low floor area, with the low floor area having the same two ends as the intermediate car chassis. The high floor area also includes a front end beam support, a clamping block, an auxiliary support, a pressure plate, and a tie rod. The adjustable beam has pressure plates at both ends to clamp the chassis. The frontmost adjustable beam has a front end beam support and a clamping block, and the next to the frontmost adjustable beam has a high floor area air spring positioning seat, a tie rod, and an auxiliary support.

2. The universal welding equipment for DRT digital rail vehicle bodies as described in claim 1, characterized in that, The adjustable beam has two grooves on its lower surface, corresponding to the positions of the two ground tracks. These grooves match the upper surface of the ground tracks, allowing the adjustable beam to move on the ground tracks. The upper surface of the adjustable beam has a T-slot, which facilitates the movement of the support seat, air spring positioning seat, or high floor area air spring positioning seat installed on the adjustable beam.

3. A universal welding equipment for DRT digital rail vehicle bodies as described in claim 1 or 2, characterized in that, The support beam is erected on the ground by bolts or welding; the platform is fixed to the support beam by bolts; the staircase is located at one end of the platform, and the upper end of the staircase is connected to the platform; the platform is also equipped with a guardrail, which is connected to the side of the platform by bolts.

4. A universal welding equipment for DRT digital rail vehicle bodies as described in claim 1 or 2, characterized in that, The side wall limiting seats and the roof limiting seats are symmetrically arranged on the climbing ladder.

Images