A stainless steel rail vehicle top plate split mounting seat assembly adjustment method

Abstract

The invention discloses a stainless steel rail vehicle top plate split mounting seat assembly and an adjustment method, and belongs to the technical field of small parts assembly and welding inside a rail transit vehicle body. The stainless steel rail vehicle top plate split mounting seat assembly comprises a seat body, which is constructed as an L-shaped structure; two rib plates, which are welded to the inner side of the L-shaped structure of the seat body at intervals; a connecting channel iron, which can be separated from the seat body, and the connecting channel iron can be inserted above the seat body and welded to the two rib plates in an overlapping form. The invention can realize the adjustment of height, vehicle width direction, and vehicle length direction, and has the beneficial effects of simple structure, convenient assembly and adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of small internal assembly welding parts of a rail transit vehicle body, and in particular to an assembly and adjustment method for a split mounting seat of a stainless steel rail vehicle top plate. Background Art

[0002] In the manufacturing process of stainless steel rail subway vehicles, in order to install the top plate, etc., it is necessary to weld the mounting seat for the top plate installation under the air conditioning unit seat of the car body steel structure. The weight of the top plate and the connected wire duct is generally about 120 kilograms. At least 12 sets of mounting seats are welded at the corresponding positions on the longitudinal beams on the left and right sides of the air conditioning unit seat. The load-bearing capacity of a single mounting seat is not more than 10 kilograms. See the attached figure Figure 1 As shown, the mounting seat is generally made of stainless steel. The mounting seat is an integral welded part. Two rib plates are welded inside the mounting seat of the channel iron structure. The mounting seat is 2mm stainless steel, and the rib plates are 1.5mm thick stainless steel, which are connected by arc welding.

[0003] See attached Figure 2 As shown, the mounting seat is welded after the roof steel structure is assembled, and the assembly welding is performed when the roof is in the reverse installation position. The positioning reference during the assembly welding is the lower surface of the roof side beam. After the roof steel structure is welded, it is necessary to adjust the width and inner height of the roof through heating adjustment. The size of the mounting seat welded under the fan longitudinal beam assembly from the reference surface also changes accordingly. After the size of the roof is adjusted, it enters the overall assembly process. According to the deformation law of the overall assembly welding, the roof prefabrication is reversely deformed (negative tolerance is implemented for width and positive tolerance is implemented for height). After the steel structure is welded, the body height, inner width and cross-section diagonal are measured, and the body is adjusted according to the measurement results. The deflection of the roof steel structure, side wall steel structure and chassis prefabrication is inconsistent, resulting in a large deviation in the body height, and the pre-assembled mounting seat on the roof steel structure also has deviations.

[0004] During the vehicle body inspection process, the dimensions of the small parts welded inside the vehicle body are inspected. The mounting seat component under the fan longitudinal beam is close to or even exceeds the negative tolerance. At the same time, due to the adjustment of the vehicle body steel structure, the positioning dimensions of the mounting seat component in the width direction of the vehicle body also have large deviations. It is necessary to flame adjust the air conditioning longitudinal beam component. If the adjustment does not meet the requirements, the mounting seat needs to be cut off from the vehicle and modified, and then re-welded after modification. Since the factors that affect the height of the mounting seat include the size change of the mounting seat after welding, the inner height of the roof after welding, and the inner height of the body after welding, it is impossible to prefabricate the corresponding anti-deformation, and the height and width positioning can only be controlled through inspection and cutting and modification in the inspection process.

[0005] The existing mounting seat structure and welding process cannot meet the requirements of the mounting seat size precision control. The grooved integral mounting seat is deformed after welding. In order to ensure the level of the mounting surface, it is necessary to adjust and cut to ensure the size. Repeated additions and modifications reduce the strength of the air conditioner unit seat. The longitudinal beam is seriously deformed by heat. Cutting and welding also cause the mounting seat to deform or even be scrapped, resulting in a waste of materials and human resources.

[0006] Therefore, in view of the above problems, it is necessary for the present invention to provide a stainless steel rail vehicle top plate split mounting seat assembly that can be welded in separate processes and is easy to adjust and repair. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of the prior art and provide a split mounting seat for a stainless steel rail vehicle top plate. The mounting seat adopts a split structure, which can realize the adjustment of the vehicle height and vehicle width directions. The adjustment in the vehicle length direction is satisfied by opening oblong holes. The vertical surface of the mounting seat adopts a porous structure, which can reduce weight while realizing cable bundling.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention discloses a stainless steel rail vehicle top plate split mounting seat, comprising:

[0010] The seat body is constructed in an L-shaped structure;

[0011] Two ribs, which are welded to the inner side of the L-shaped structure of the seat body at intervals;

[0012] The connecting channel iron can be separated from the seat body, and the connecting channel iron can be inserted above the seat body and welded to the two ribs in an overlapping manner.

[0013] Furthermore, it also includes a connecting plate, which has the same structure as the connecting channel iron structure and is used to compensate for the gap between the connecting channel iron and the vertical section of the L-shaped structure of the seat body.

[0014] Furthermore, the connecting channel iron is constructed as a bent plate with a concave structure.

[0015] Furthermore, the width between the inner side walls of the connecting groove having the concave shape is greater than the width between the outer walls of the two rib plates.

[0016] Furthermore, the seat body, the connecting slot iron, and the connecting plate are all made of stainless steel.

[0017] Furthermore, the height of the rib plate is smaller than the height of the vertical section of the L-shaped structure of the seat body.

[0018] Furthermore, a horizontal section of the L-shaped structure of the seat body is provided with a long hole, and the long axis direction of the long hole is parallel to the axis of the length direction of the vehicle body.

[0019] Furthermore, a plurality of through holes are provided in the vertical section of the L-shaped structure of the seat body, and the plurality of through holes are arranged in a matrix form.

[0020] The present invention discloses a stainless steel rail vehicle top plate split mounting seat assembly adjustment and repair method, comprising the above-mentioned stainless steel rail vehicle top plate split mounting seat assembly;

[0021] The method includes:

[0022] Step S1: In the process of reverse installation of the roof, the surface of the stainless steel side beam and the length center of the roof steel structure are used as positioning references to weld the connecting channel iron;

[0023] Step S2: After the assembly welding of the vehicle body steel structure is completed and the size of the steel structure is adjusted;

[0024] Step S3: The in-vehicle small parts process group uses the upper surface of the stainless steel side beam as a positioning reference for the seat body and the center of the air-conditioning unit seat plate as a positioning reference in the width direction of the vehicle body to adjust the position between the seat body and the connecting channel iron.

[0025] Further, step S3.1: a gap appears between the seat body and the connecting slot iron in the vehicle width direction, and when the gap is greater than the weld width, the connecting plate is welded between the seat body and the connecting slot iron.

[0026] In the above technical solution, the present invention provides a stainless steel rail vehicle top plate split mounting seat composition and adjustment method, which has the following beneficial effects:

[0027] 1. By connecting the structure composed of channel iron + mounting seat, adjusting the overlap amount and applying the connecting process plate, the size adjustability in height and width directions is achieved.

[0028] 2. This structure can meet the requirements of step-by-step welding in the roof reverse installation process and the process of welding small parts inside the car. The split structure and the angle iron mounting seat structure are easy to adjust and the mounting surface can be adjusted by simply hammering, avoiding the deformation of the roof and body steel structure welding and the impact of subsequent adjustments on the size of the mounting seat. The split structure mounting seat assembly has higher dimensional accuracy after welding, which can avoid the damage to the flatness and sealing of the top plate caused by the original structure adjustment of the fan.

[0029] 3. The ribs and mounting seats are welded in the small parts process inside the vehicle. They can be cut on the spot as needed, and the size adjustment is more flexible. One-time welding can meet the requirements, avoiding repeated welding to damage the strength of the longitudinal beam.

[0030] 4. The split mounting base has an oblong hole on the vertical surface of the angle iron mounting base, which can not only reduce weight, but also be used to bundle the wiring harness near the mounting base, avoiding the problem that the original structure needs to separately weld the wire tie rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic diagram of the structure of the mounting seat in the prior art;

[0033] Figure 2 It is a schematic diagram of the state of the mounting base after welding in the prior art;

[0034] Figure 3 It is a front view of a split mounting seat for a stainless steel rail vehicle top plate disclosed in the present invention;

[0035] Figure 4 It is a left view of a split mounting seat for a stainless steel rail vehicle top plate disclosed in the present invention;

[0036] Figure 5 It is a left view of another embodiment of a split mounting seat for a stainless steel rail vehicle top plate disclosed in the present invention;

[0037] Figure 6 It is a front view of a stainless steel rail vehicle top plate split mounting seat body disclosed in the present invention;

[0038] Figure 7 It is a left view of a main body of a stainless steel rail vehicle top plate split mounting seat disclosed in the present invention;

[0039] Figure 8 It is a top view of a stainless steel rail vehicle top plate split mounting seat body disclosed in the present invention;

[0040] Fig. 9 It is a front view of a stainless steel rail vehicle top plate split mounting seat composed of a connecting channel iron disclosed in the present invention;

[0041] Fig.10 It is a left view of a stainless steel rail vehicle top plate split mounting seat composed of a connecting channel iron disclosed by the present invention;

[0042] Fig.11 It is a schematic diagram of the welding of the connecting groove iron composed of a split mounting seat of a stainless steel rail vehicle top plate disclosed by the present invention;

[0043] Fig.12 It is a schematic diagram of welding a stainless steel rail vehicle top plate split mounting seat composed of a seat body and a connecting groove iron disclosed in the present invention;

[0044] Fig.13 It is a partial enlarged view of the welding of a stainless steel rail vehicle top plate split mounting seat composed of a seat body and a connecting groove iron;

[0045] Fig.14 It is a partial enlarged view of the welding of a stainless steel rail vehicle top plate split mounting seat composed of a seat body and a connecting groove iron disclosed by the present invention.

[0046] Description of reference numerals:

[0047] Seat body 1; rib plate 2; connecting channel iron 3; connecting plate 4. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0049] See also Figure 3-10 As shown;

[0050] A stainless steel rail vehicle top plate split mounting seat is invented, comprising:

[0051] The seat body 1 is constructed in an L-shaped structure;

[0052] Two ribs 2 are welded to the inner side of the L-shaped structure of the seat body 1 at intervals;

[0053] The connecting channel iron 3 can be separated from the seat body 1 so that the connecting channel iron 3 is inserted on the seat body 1 and welded to the two rib plates 2 in an overlapping manner.

[0054] Specifically, in this structure, the seat body 1 is an angle iron bent into an L-shaped structure through a bending process. The inner side of the seat body 1 and the two rib plates 2 are welded together to form a whole. The connecting slot iron 3 is a bent part with a groove structure. First, in the roof reverse installation process, the connecting slot iron 3 is welded below the lower surface of the longitudinal beam of the fan, and the slot opening of the connecting slot iron 3 faces the bottom of the fan. The split mounting seat composition can realize the requirements of welding the connecting slot iron 3 and the seat body 1 in different processes. After the steel structure is welded and the inner height, inner width and cross-sectional diagonal dimensions are adjusted, the seat body 1 is assembled below the connecting slot iron 3, and the position (overlap amount) of the seat body 1 relative to the connecting slot iron 3 is adjusted according to the height and vehicle width positioning dimensions. After the requirements are met, spot welding is performed.

[0055] See also Figure 5As shown, preferably, the split mounting seat also includes a connecting plate 4, and the structure of the connecting plate 4 is the same as that of the connecting slot iron 3, both of which are bent plates with a concave structure. The connecting plate 4 is used to compensate for the gap between the connecting slot iron 3 and the vertical section of the L-shaped structure of the seat body 1 to connect the seat body 1 and the connecting Cao iron 3.

[0056] See also Figure 3 As shown;

[0057] Preferably, the width between the inner side walls of the concave shape of the connecting channel iron 3 is greater than the width between the outer walls of the two rib plates 2. It is convenient for the connecting channel iron 3 to be sleeved on the outside of the two rib plates 2;

[0058] Preferably, the seat body 1, the connecting channel iron 3, and the connecting plate 4 are all made of stainless steel.

[0059] See also Figure 8 As shown;

[0060] Preferably, a horizontal section of the seat body 1L-shaped structure is provided with a long hole, the long axis direction of the long hole is parallel to the axis in the length direction of the vehicle body, and the adjustment requirements in the length direction of the vehicle are met through the long hole;

[0061] See also Figure 3 , 6 As shown;

[0062] Preferably, the vertical section of the 1L-shaped structure of the seat body is provided with a plurality of through holes, which are arranged in a matrix form. The through holes can reduce weight and can also be used to bundle the wiring harness near the mounting seat, thus avoiding the problem that the original structure needs to separately weld the wire tie rods;

[0063] See also Figure 11-14 As shown;

[0064] A method for adjusting and repairing a stainless steel rail vehicle top plate split mounting seat assembly, comprising the above-mentioned stainless steel rail vehicle top plate split mounting seat assembly, the method comprising:

[0065] Step S1: Roof reverse installation process, using the surface of the stainless steel side beam and the length center of the roof steel structure as the positioning reference, welding and connecting the channel iron 3, such as Fig.11 As shown, the opening of the groove of the connecting slot iron 3 faces the bottom of the fan;

[0066] Step S2: After the assembly welding of the vehicle body steel structure is completed and the size of the steel structure is adjusted;

[0067] Step S3: The in-vehicle small parts process group aligns the seat body 1, takes the upper surface of the stainless steel side beam as the positioning reference, and takes the center of the air-conditioning unit seat upright plate as the positioning reference in the vehicle width direction, and adjusts the position between the seat body 1 and the connecting groove iron 3, that is, adjusts the overlap between the two sides of the groove of the connecting groove iron 3 and the rib plate 2.

[0068] When a large gap appears between the connecting channel iron 3 and the seat body 1 in the vehicle width direction (affecting welding);

[0069] Preferably, step S3.1: when the gap between the seat body 1 and the connecting slot iron 3 in the vehicle width direction is greater than the weld width, a connecting plate 4 is welded between the seat body 1 and the connecting slot iron 3. The connecting plate 4 is corner-jointed with the seat body 1, and the connecting plate 4 is overlapped with the connecting slot iron 3 (that is, the connecting plate 4 is overlapped with the connecting slot iron 3, and the connecting plate 4 is vertically connected to the seat body 1 through a corner weld), so that the three are connected through a weld, see Fig.12 shown.

[0070] When assembling the seat body 1, if the height of the vehicle body is small and causes interference between the seat body 1 and the connecting channel iron 3, the seat body 1 can be cut by a cutting machine and polished smooth before assembly.

[0071] In the above technical solution, the present invention provides a stainless steel rail vehicle top plate split mounting seat composition and adjustment method, which has the following beneficial effects:

[0072] 1. By connecting the structure composed of channel iron + mounting seat, adjusting the overlap amount and applying the connecting process plate, the size adjustability in height and width directions is achieved.

[0073] 2. This structure can meet the requirements of step-by-step welding in the roof reverse installation process and the process of welding small parts inside the car. The split structure and the angle iron mounting seat structure are easy to adjust and the mounting surface can be adjusted by simply hammering, avoiding the deformation of the roof and body steel structure welding and the impact of subsequent adjustments on the size of the mounting seat. The split structure mounting seat assembly has higher dimensional accuracy after welding, which can avoid the damage to the flatness and sealing of the top plate caused by the original structure adjustment of the fan.

[0074] 3. The ribs and mounting seats are welded in the small parts process inside the vehicle. They can be cut on the spot as needed, and the size adjustment is more flexible. One-time welding can meet the requirements, avoiding repeated welding to damage the strength of the longitudinal beam.

[0075] 4. The split mounting base has an oblong hole on the vertical surface of the angle iron mounting base, which can not only reduce weight, but also be used to bundle the wiring harness near the mounting base, avoiding the problem that the original structure needs to separately weld the wire tie rod.

[0076] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for adjusting and repairing a stainless steel rail vehicle roof split mounting seat assembly, wherein the stainless steel rail vehicle roof split mounting seat assembly comprises: The seat body (1) is constructed in an L-shaped structure; Two rib plates (2) are welded to the inner side of the L-shaped structure of the seat body (1) at intervals; a connecting channel iron (3) can be separated from the seat body (1), and the connecting channel iron (3) can be inserted above the seat body (1) and welded to the two rib plates (2) in an overlapping manner; a connecting plate (4) has the same structure as the connecting channel iron (3) and is used to compensate for the gap between the connecting channel iron (3) and the vertical section of the L-shaped structure of the seat body (1); Characterized in that the method comprises: Step S1: In the process of reverse installation of the vehicle roof, the surface of the stainless steel side beam and the length center of the vehicle roof steel structure are used as positioning references to weld the connecting channel iron (3); Step S2: After the assembly welding of the vehicle body steel structure is completed and the size of the steel structure is adjusted; Step S3: The in-vehicle small parts process group uses the upper surface of the stainless steel side beam as a positioning reference for the seat body (1) and the center of the air conditioning unit seat plate as a positioning reference in the width direction of the vehicle body to adjust the position between the seat body (1) and the connecting channel iron (4).

2. A stainless steel rail vehicle top plate split mounting seat assembly adjustment method according to claim 1, characterized in that ； The connecting channel iron (3) is constructed as a bent plate with a concave structure.

3. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 2, It is characterized by: The width between the concave inner side walls of the connecting channel iron (3) is greater than the width between the outer walls of the two rib plates (2).

4. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 1, characterized in that ； The seat body (1), the connecting slot iron (3) and the connecting plate (4) are all made of stainless steel.

5. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 1, It is characterized by: The height of the rib plate (2) is smaller than the height of the vertical section of the L-shaped structure of the seat body (1).

6. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 1, characterized in that ； The horizontal section of the L-shaped structure of the seat body (1) is provided with a long hole, and the long axis direction of the long hole is parallel to the axis of the length direction of the vehicle body.

7. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 1 or 6, characterized in that ； The vertical section of the L-shaped structure of the seat body (1) is provided with a plurality of through holes, and the plurality of through holes are arranged in a matrix form.

8. A stainless steel rail vehicle roof split mounting seat assembly adjustment method according to claim 1, characterized in that ； Step S3.1: When a gap appears between the seat body (1) and the connecting slot iron (3) in the vehicle width direction and the gap is larger than the weld width, the connecting plate (4) is welded between the seat body (1) and the connecting slot iron (3).

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