Welding equipment for support frames in high-speed train braking systems

Abstract

This utility model discloses a welding device for a support frame in a high-speed train braking system, including a tilting frame assembly and a base plate support assembly. The tilting frame assembly has a tiltable top frame. A base plate of the base plate support assembly is mounted on the top frame. The upper surface of the base plate is provided with a pad positioning assembly for positioning the horizontal legs of the support frame, several columns for positioning the crossbeams, several vertical plates for positioning the first longitudinal beam, and several vertical plates for positioning the second longitudinal beam. It also includes a vertical plate positioning assembly and a positioning plate for positioning the vertical plates of the support frame. This device allows the components to be assembled and welded in a specific order to form a support frame, effectively avoiding assembly errors and missing parts. The welded support frame has high dimensional accuracy, significantly improving product quality and yield. It also offers good weldability, helping to alleviate welding fatigue. The overall welding efficiency is high, helping to meet the requirements for large-volume delivery of support frames.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for welding support frames, and specifically to a welding device for a support frame in a high-speed train braking system. Background Technology

[0002] The train braking system is one of the most important safety devices on a train. The support frame plays a skeletal support role in the train braking system, and all the components of the train braking system are fixedly installed on the support frame.

[0003] like Figures 1-2As shown, a support frame for a train braking system includes three parallel crossbeams A and two parallel longitudinal beams E. Both longitudinal beams E are channel steel with openings facing opposite directions. The left ends of the three crossbeams A are vertically welded and fixed to the vertical plate of one longitudinal beam E, and the right ends of the three crossbeams A are vertically welded and fixed to the vertical plate of the other longitudinal beam E. Four crossbeams are welded and fixed at intervals between the two crossbeams A located at the rear and middle. The system includes three longitudinal beams C welded and fixed between longitudinal beam B and two transverse beams A located at the front and middle. It also includes four horizontal supports D in the transverse direction, with the right ends of two supports D inserted and welded into a longitudinal beam E located at the left end of transverse beam A, and the left ends of the other two supports D inserted and welded into a longitudinal beam E located at the right end of transverse beam A. A first vertical plate F, along the longitudinal direction, is welded to the top of the longitudinal beam E located at the left end of transverse beam A. The front end of the first upright plate F is integrally bent with an arm plate F-1 extending vertically to the right; the rear end of the first upright plate F is integrally bent with an ear plate F-2 extending vertically to the left; the rear end of the right side of the first upright plate F is also vertically welded with an arm plate F-3 corresponding to the arm plate F-1; the lower edge surfaces of the arm plate F-1 and the arm plate F-3 are welded and fixedly connected to the top of the corresponding longitudinal beam E and the top of the crossbeam A; a second upright plate G is welded to the top of a longitudinal beam E located at the right end of the crossbeam A, along the longitudinal direction. The front and rear ends of the second vertical plate G are respectively bent with arm plates 3G-1 extending vertically to the left; the top right end of the front beam A is welded with a vertical plate 3H along the transverse direction, and the left and right ends of the vertical plate 3H are respectively bent with arm plates 4H-1 extending vertically to the rear, and the lower edge of the arm plate 4H-1 is welded and fixedly connected to the top of the corresponding beam A. The top of the beam A is provided with several waist-shaped holes 1A-1 and mounting holes 1J, and the top of the longitudinal beams 1B and 2C are provided with several mounting holes 1J. Currently, the support frame is manufactured using a manual splicing and welding method, where components are spliced ​​together while welding is performed. This manual splicing and welding method has the following technical problems: (1) It involves a large number of components, which can easily lead to missed welds or incorrect welds; (2) The positioning of each component during splicing is difficult and the accuracy is hard to control, resulting in a large deformation of the welded support frame, making it difficult to meet the dimensional accuracy requirements of the drawings, and resulting in a low product qualification rate; (3) The large number of components involved and the difficulty in positioning each component during splicing can easily cause fatigue for welding operators, resulting in low overall welding efficiency and difficulty in meeting the large-volume delivery requirements of the support frame. Therefore, this utility model proposes a welding device for the support frame in the train braking system to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a welding device for a support frame in a high-speed train braking system. Firstly, the crossbeams, longitudinal beams, and horizontal legs are spliced ​​and positioned using a base plate support assembly. Secondly, the vertical plates are positioned and spliced ​​using a vertical plate positioning assembly and a positioning plate in coordination. Compared to traditional manual splicing methods, this significantly reduces the difficulty of splicing and positioning each component, effectively improving the accuracy and efficiency of splicing and positioning. This allows the components to be systematically spliced ​​and welded into a support frame in a specific order, effectively avoiding splicing errors and missing parts. The resulting welded support frame has high dimensional accuracy, significantly improving product quality and yield. During welding, the vertical rotation angle of the base plate can be flexibly adjusted using a flipping frame assembly, ensuring good welding accessibility and helping to alleviate welding fatigue. The overall welding efficiency is high, helping to meet the requirements for large-volume delivery of support frames.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a welding device for a support frame in a high-speed train braking system, including a tilting frame assembly, a base plate support assembly, and a vertical plate positioning assembly. The tilting frame assembly has a top frame capable of tilting vertically. The base plate support assembly includes a base plate detachably mounted on the top frame. The four corners of the upper surface of the base plate are respectively provided with pad positioning assemblies for positioning corresponding horizontal legs on the support frame. The front, middle, and rear sides of the upper surface of the base plate are respectively fixed with a plurality of columns spaced along the left-right lateral length direction for positioning three crossbeams on the support frame. The rear side of the upper surface of the base plate is also fixed along the left-right lateral length direction. A number of vertical plates 1 for positioning and supporting the longitudinal beam 1 on the frame are fixed at intervals in the 1 degree direction. A number of vertical plates 2 for positioning and supporting the longitudinal beam 2 on the frame are fixed at intervals along the left and right lateral length direction on the front side of the upper end face of the base plate 1. The upper end face of the column, the upper end face of vertical plate 1 and the upper end face of vertical plate 2 are all provided with threaded holes. In use, the crossbeam is fixed to the top of the corresponding column by screws that pass through the mounting hole 1 and the corresponding threaded hole on the column. The longitudinal beam 1 is fixed to the top of the corresponding vertical plate 1 by screws that pass through the mounting hole 1 and the corresponding threaded hole on vertical plate 1. The longitudinal beam 2 is fixed to the top of the corresponding vertical plate 2 by screws that pass through the mounting hole 1 and the corresponding threaded hole on vertical plate 2.

[0006] The upright plate positioning assembly includes a base plate two. The left edge of the upper surface of the base plate two is fixed with a triangular positioning plate one for positioning the upright plate one on the support frame and a triangular positioning plate two for positioning the upper arm plate two on the support frame. The right edge of the upper surface of the base plate two is fixed with a triangular positioning plate one for positioning the upright plate two on the support frame. The front and rear edges of the base plate two are provided with mounting holes two corresponding to the threaded holes on the corresponding columns and the mounting holes one on the corresponding crossbeams. In use, the base plate two is fixed to the top of the three crossbeams on the support frame by screws that pass through the mounting holes two, the mounting holes one on the corresponding crossbeams and the threaded holes on the corresponding columns. The front edge of the base plate two has two notches two for inserting and positioning the two arm plates four on the upright plate three. The front edge of the base plate two also has a notch one located between the two notches two.

[0007] It also includes a positioning plate for positioning the upright plate three on the support frame. The positioning plate has L-shaped notches with openings facing the front and the outside at its left and right ends. The positioning plate has several waist-shaped holes two. The several waist-shaped holes two correspond one-to-one with the waist-shaped hole one located at the top right end of the front crossbeam of the support frame. In use, the positioning plate is laid between the top right end of the front crossbeam of the support frame and the base plate two. The two L-shaped notches at the left and right ends of the positioning plate correspond one-to-one with the two notches two on the base plate two. The waist-shaped holes two on the positioning plate and the waist-shaped hole one located at the top right end of the front crossbeam of the support frame are connected to positioning pins.

[0008] This utility model discloses a welding device for a support frame in a high-speed train braking system. First, the crossbeams, longitudinal beams, and horizontal legs are spliced ​​and positioned using a base plate support assembly. Second, the vertical plates are positioned and spliced ​​using a vertical plate positioning assembly and a positioning plate in tandem. Compared to traditional manual splicing methods, this significantly reduces the difficulty of splicing and positioning each component, effectively improving the accuracy and efficiency of splicing and positioning. This allows the components to be systematically spliced ​​and welded into a support frame in a specific order, effectively avoiding splicing errors and missing parts. The resulting welded support frame has high dimensional accuracy, greatly improving product quality and yield. During welding, the vertical rotation angle of the base plate can be flexibly adjusted using a flipping frame assembly, ensuring good welding accessibility and helping to alleviate welding fatigue. The overall welding efficiency is high, helping to meet the requirements for large-volume delivery of support frames.

[0009] A preferred technical solution is that the flipping frame assembly further includes a base frame, with a set of upwardly extending legs respectively located at the left and right ends of the base frame. The middle portions of the left and right side frames of the top frame are rotatably mounted on the inner upper ends of the legs at the left and right ends of the base frame, and motors for driving the top frame to flip vertically are installed on the outer upper ends of the legs. The flipping frame assembly has a simple structural design, high feasibility in manufacturing and implementation, good operability in flipping and adjusting the top frame, and strong practicality.

[0010] A further preferred technical solution includes a threaded hole in the longitudinal direction on the top frame, and a plurality of mounting holes corresponding to the threaded holes on the top frame on the substrate. The substrate is fixedly mounted on the top frame by bolt assemblies that pass through the mounting holes and the threaded holes on the top frame. The installation and removal of the substrate on the top frame is simple, ensuring the ease of installation and removal of the substrate support assembly on the flip-up frame assembly.

[0011] A further preferred technical solution includes a pad fixed to a corner of the upper end face of a substrate. A support block for positioning the horizontal support leg on the support frame is fixed to the front or rear side of the pad. The pad has an oblong through hole corresponding to the oblong mounting hole on the horizontal support leg. In use, the horizontal support leg is fixed and locked to the top of the pad by a bolt assembly two that passes through the oblong mounting hole, the oblong through hole, and the threaded hole at the corner of the substrate. The pad positioning assembly has a clever and reasonable structural design. When the horizontal support leg is placed on the pad, it can be quickly positioned in the front-rear direction by the support block. Furthermore, the method of fixing the horizontal support leg to the pad is simple, and disassembly is convenient.

[0012] A further preferred technical solution is that the bolt assembly two includes a screw rod and an oblong pad embedded inside the oblong through hole, wherein the height of the oblong pad is greater than the depth of the oblong through hole, and the oblong pad has a through hole penetrating both its upper and lower ends. The screw rod passes through the through hole, and its lower end is screwed into a threaded hole at a corresponding corner of the base plate. The bolt assembly two has a clever and reasonable structural design. The lower end of the oblong pad is embedded inside the oblong through hole of the pad, and the upper end is embedded inside the oblong mounting hole of the horizontal support leg, thereby ensuring the stability of the horizontal support leg when installed on the pad, effectively preventing displacement of the horizontal support leg, and helping to ensure the splicing accuracy between the horizontal support leg and the longitudinal beam.

[0013] A further preferred technical solution is that both substrate one and substrate two are provided with weight-reduction holes, and a lifting ring is fixed to the upper corner of substrate one. The weight-reduction holes on both substrate one and substrate two ensure good portability and improve their flexibility of use; the lifting ring improves the convenience of lifting and transporting substrate one during installation or removal from the flipping frame assembly.

[0014] A further preferred technical solution is that rollers are installed on the lower end face of the base frame. This allows the tilting frame assembly to be flexibly pushed to a suitable welding position.

[0015] The advantages and beneficial effects of this utility model are as follows:

[0016] 1. This utility model discloses a welding device for a support frame in a high-speed train braking system. First, the crossbeams, longitudinal beams, and horizontal legs are spliced ​​and positioned using a base plate support assembly. Second, the vertical plates are positioned and spliced ​​using a vertical plate positioning assembly and a positioning plate. Compared with the traditional manual splicing method, this significantly reduces the difficulty of splicing and positioning each component, effectively improves the accuracy and efficiency of splicing and positioning, and allows each component to be spliced ​​and welded in an orderly manner to form a support frame. This effectively avoids splicing errors and missing parts, resulting in high dimensional accuracy of the welded support frame and greatly improving the product quality and pass rate of the support frame. During the welding process, the vertical rotation angle of the base plate can be flexibly adjusted using a flipping frame assembly, ensuring good welding accessibility and helping to alleviate welding fatigue. The overall welding efficiency is high, which helps to meet the requirements of large-volume delivery of support frames.

[0017] 2. The pad block positioning component has a clever and reasonable structural design. When the horizontal support leg is placed on the pad block, it can be quickly positioned in the front and back directions through the backing block. The horizontal support leg is fixed on the pad block in a simple way and is easy to disassemble.

[0018] 3. The bolt assembly II has a clever and reasonable structural design. The lower end of the waist-shaped pad is embedded in the waist-shaped through hole of the pad, and the upper end is embedded in the waist-shaped mounting hole of the horizontal support leg. This ensures the stability of the horizontal support leg when it is installed on the pad, effectively prevents the horizontal support leg from shifting, and helps to ensure the splicing accuracy between the horizontal support leg and the longitudinal beam.

[0019] 4. Both substrate one and substrate two are provided with weight reduction holes to ensure good portability and improve their flexibility of use; the lifting ring improves the convenience of lifting and transporting substrate one when it is installed or removed from the flip frame assembly. Attached Figure Description

[0020] Figure 1 This is a top-down perspective view of the support frame of a high-speed train braking system in the background art.

[0021] Figure 2 This is a left rear-view perspective perspective of a support frame in a high-speed train braking system, as described in the background art.

[0022] Figure 3 This is a three-dimensional view from the right front side of a welding device for a support frame in a high-speed train braking system, according to the present invention.

[0023] Figure 4 This is an exploded view of a welding device for a support frame in a high-speed train braking system according to the present invention.

[0024] Figure 5 This is a 3D view of the flip-up frame assembly;

[0025] Figure 6This is a three-dimensional view of the front right side of the substrate support assembly;

[0026] Figure 7 This is a split view of the spacer and bolt assembly;

[0027] Figure 8 This is a front-view perspective 3D view of the upright panel positioning component;

[0028] Figure 9 This is a 3D view of the front side of the positioning plate;

[0029] Figure 10 This is one of the usage status diagrams of a welding equipment for a support frame in a high-speed train braking system according to this utility model;

[0030] Figure 11 This is the second diagram showing the usage status of a welding equipment for a support frame in a high-speed train braking system according to this utility model.

[0031] Figure 12 yes Figure 11 A magnified view of a section at point S in the middle;

[0032] Figure 13 This is the third diagram showing the usage status of a welding equipment for a support frame in a high-speed train braking system according to this utility model.

[0033] Figure 14 yes Figure 13 A magnified view of the area at point W in the middle;

[0034] Figure 15 This is the fourth diagram showing the usage status of a welding equipment for a support frame in a high-speed train braking system according to this utility model.

[0035] Figure 16 yes Figure 15 A magnified view of the area at point Z in the middle.

[0036] In the diagram: A. Crossbeam; B. Longitudinal beam one; C. Longitudinal beam two; D. Horizontal support leg; E. Longitudinal beam three; F. First upright plate; A-1. Waist-shaped hole one; F-1. Arm plate one; F-2. Ear plate; F-3. Arm plate two; G. Second upright plate; G-1. Arm plate three; H. Upright plate three; H-1. Arm plate four; J. Mounting hole one; 1. Tilting frame assembly; 2. Base plate support assembly; 3. Upright plate positioning assembly; 4. Positioning plate; 5. Bolt assembly one; 6. Weight reduction hole; 7. Screw; 8. Positioning pin; 1-1. Base frame; 1-2. Top frame; 1-3. Support leg; 1-4. Motor; 1- 5. Roller; 2-1. Base plate one; 2-2. Pad; 2-2a. Backing block; 2-2b. Waist-shaped through hole; 2-3. Bolt assembly two; 2-3a. Screw rod; 2-3b. Waist-shaped pad; 2-3c. Through hole; 2-4. Column; 2-5. Upright plate one; 2-6. Upright plate two; 2-7. Lifting ring; 2-8. Mounting hole three; 3-1. Base plate two; 3-1a. Notch groove one; 3-1b. Notch groove two; 3-1c. Mounting hole two; 3-2. Triangular positioning plate one; 3-3. Triangular positioning plate two; 4-1. L-shaped notch groove; 4-2. Waist-shaped hole two. Detailed Implementation

[0037] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0038] Example

[0039] like Figures 3-9As shown, this utility model is a welding device for a support frame in a high-speed train braking system, including a tilting frame assembly 1, a base plate support assembly 2, and a vertical plate positioning assembly 3. The tilting frame assembly 1 has a top frame 1-2 that can be tilted vertically. The base plate support assembly 2 includes a base plate 2-1 detachably mounted on the top frame 1-2. The four corners of the upper surface of the base plate 2-1 are respectively provided with pad positioning assemblies for positioning the corresponding horizontal support legs D on the support frame. The front, middle, and rear sides of the upper surface of the base plate 2-1 are respectively fixed with several columns 2-4 at intervals along the left and right lateral length directions for positioning the three horizontal beams A on the support frame. The rear side of the upper surface of the base plate 2-1 is fixed with several columns for positioning the three horizontal beams A at intervals along the left and right lateral length directions. The vertical plate 2-5 of the longitudinal beam 1B on the support frame, and the front side of the upper end face of the base plate 2-1 are fixed with several vertical plates 2-6 at intervals along the left and right horizontal length direction for positioning and supporting the longitudinal beam 2C on the support frame. The upper end face of the column 2-4, the upper end face of the vertical plate 2-5 and the upper end face of the vertical plate 2-6 are all provided with threaded holes. In use, the crossbeam A is laid and fixed to the top of the corresponding column 2-4 by screws 7 that pass through the mounting hole 1J and the threaded hole on the corresponding column 2-4. The longitudinal beam 1B is laid and fixed to the top of the corresponding vertical plate 2-5 by screws 7 that pass through the mounting hole 1J and the threaded hole on the corresponding vertical plate 2-5. The longitudinal beam 2C is laid and fixed to the top of the corresponding vertical plate 2-6 by screws 7 that pass through the mounting hole 1J and the threaded hole on the corresponding vertical plate 2-6.

[0040] The upright plate positioning assembly 3 includes a base plate 3-1. A triangular positioning plate 3-2 for positioning the first upright plate F on the support frame and a triangular positioning plate 3-3 for positioning the upper arm plate F-3 of the support frame are fixed to the left edge of the upper surface of the base plate 3-1. A triangular positioning plate 3-2 for positioning the second upright plate G on the support frame is fixed to the right edge of the upper surface of the base plate 3-1. The base plate 3-1 has threaded holes on the corresponding uprights 2-4 and mounting holes on the corresponding crossbeam A at its front and rear edges. In use, the substrate 3-1 is installed and fixed to the top of the three crossbeams A on the support frame by screws 7 that pass through the mounting holes 3-1c, the mounting holes J on the corresponding crossbeam A, and the threaded holes on the corresponding columns 2-4. The front edge of the substrate 3-1 has two notches 3-1b for inserting and positioning the two arm plates (H-1) on the three upright plates H. The front edge of the substrate 3-1 also has a notch 3-1a located between the two notches 3-1b.

[0041] It also includes a positioning plate 4 for positioning the upright plate 3H on the support frame. The positioning plate 4 has L-shaped notches 4-1 with openings facing the front and the outside at its left and right ends. The positioning plate 4 has several waist-shaped holes 4-2. The several waist-shaped holes 4-2 correspond one-to-one with the waist-shaped hole A-1 located at the top right end of the front beam A of the support frame. In use, the positioning plate 4 is placed between the top right end of the front beam A of the support frame and the base plate 3-1. The two L-shaped notches 4-1 at the left and right ends of the positioning plate 4 correspond one-to-one with the two notches 3-1b on the base plate 3-1. The waist-shaped holes 4-2 on the positioning plate 4 and the waist-shaped hole A-1 located at the top right end of the front beam A of the support frame are connected to positioning pins 8.

[0042] Preferably, the flipping frame assembly 1 further includes a base frame 1-1, with a set of upwardly extending support legs 1-3 respectively provided at the left and right ends of the base frame 1-1. The middle parts of the left and right side frames of the top frame 1-2 are rotatably mounted on the inner side of the upper end of the support legs 1-3 at the left and right ends of the base frame 1-1, and a motor 1-4 for driving the top frame 1-2 to flip vertically is installed on the outer side of the upper end of the support legs 1-3.

[0043] More preferably, the top frame 1-2 has a threaded hole in the longitudinal direction, and the substrate 2-1 has a plurality of mounting holes 2-8 corresponding to the threaded holes on the top frame 1-2. The substrate 2-1 is fixedly mounted on the top frame 1-2 by bolt assemblies 5 that pass through the mounting holes 2-8 and the threaded holes on the top frame 1-2.

[0044] More preferably, the pad positioning assembly includes a pad 2-2 fixed to the upper corner of the substrate 2-1. The front or rear side of the pad 2-2 is fixed with a backing block 2-2a for positioning the horizontal support leg D on the support frame. The pad 2-2 has an oblong through hole 2-2b corresponding to the oblong mounting hole on the horizontal support leg D. In use, the horizontal support leg D is fixed and locked to the top of the pad 2-2 by a bolt assembly 2-3 that passes through the oblong mounting hole, the oblong through hole 2-2b and the threaded hole at the corner of the substrate 2-1.

[0045] More preferably, the bolt assembly 2-3 includes a screw rod 2-3a and an oblong pad 2-3b embedded in the oblong through hole 2-2b, wherein the height of the oblong pad 2-3b is greater than the depth of the oblong through hole 2-2b, the oblong pad 2-3b has a through hole 2-3c that passes through the upper and lower end faces, the screw rod 2-3a passes through the through hole 2-3c, and the lower end of the screw rod 2-3a is screwed into the threaded hole corresponding to the corner of the base plate 2-1.

[0046] More preferably, both substrate 2-1 and substrate 3-1 are provided with weight-reducing holes 6, and a lifting ring 2-7 is fixed to the upper corner of substrate 2-1.

[0047] More preferably, rollers 1-5 are installed on the lower end face of the bottom frame 1-1.

[0048] The working principle of the welding equipment for the support frame in the braking system of a high-speed train is as follows:

[0049] Step 1: Lay the three crossbeams A sequentially on the top of the corresponding columns 2-4 on the rear, middle, and front sides of the upper surface of the substrate 2-1. Secure them together using screws 7 that pass through the mounting holes J on the crossbeams A and the threaded holes on the top of the corresponding columns 2-4. Place one longitudinal beam 3E on the left end of the three crossbeams A and another crossbeam A on the right end of the three crossbeams A. Place the four horizontal legs D on the corresponding pads 2-2 at the four corners of the substrate 2-1. Insert the right ends of the two horizontal legs D on the left into the longitudinal beam 3E on the left end of the crossbeam A, and insert the left ends of the two horizontal legs D on the right into the longitudinal beam 3E on the right end of the crossbeam A. Adjust the corresponding positions of the longitudinal beam 3E and the ends of the three crossbeams A. Secure and lock the horizontal legs D and the corresponding pads 2-2 using bolt assembly 2-3 (see Appendix). Figure 10 The three crossbeams A, two longitudinal beams E, and four horizontal support legs D are welded and fixed together. During the welding process, the top frame 1-2 and the base plate 2-1 can be rotated to a suitable welding position by starting the motor 1-4. After the welding is completed, the screws 7 on the crossbeam A are removed.

[0050] Step 2: Place the positioning plate 4 on the top right end of the front crossbeam A of the substrate 2-1, with the opening of the L-shaped notch 4-1 facing forward (see attached). Figure 11 and attached Figure 12 );

[0051] Step 3: Place the base plate 2 3-1 of the upright positioning assembly 3 on top of the three crossbeams A, with the notch 1 3-1a facing forward. Adjust the position of the base plate 2 3-1 so that the two L-shaped notches 4-1 at the left and right ends of the positioning plate 4 correspond one-to-one with the two notches 2 3-1b on the base plate 2 3-1. Positioning pins 8 are inserted into the oblong holes 2 4-2 on the positioning plate 4 and the oblong hole 1 A-1 at the top right end of the crossbeam A on the front side of the support frame. The base plate 2 3-1 is then fixed to the top of the three crossbeams A by screws 7 inserted into the mounting holes 2 3-1c, the corresponding mounting holes 1 J on the crossbeam A, and the threaded holes on the corresponding uprights 2-4 (see Appendix). Figure 13 and attached Figure 14 );

[0052] Step 4: Place the first upright plate F on top of the left longitudinal beam 3E, with the lower end of the first upright plate F abutting against the left end face of the second base plate 3-1 and the first arm plate F-1 abutting against the front side of the second base plate 3-1. Weld the lower end of the first upright plate F to the top of the corresponding longitudinal beam 3E and the lower end of the first arm plate F-1 to the top of the corresponding longitudinal beam 3E and the top of the front crossbeam A. Then place the second arm plate F-3 against the rear end of the right side of the first upright plate F, with the second arm plate F-3 abutting against the rear side of the second base plate 3-1. The left edge is welded and fixedly connected to the first upright plate F. The lower end of the second arm plate F-3 is welded and fixedly connected to the top of the corresponding longitudinal beam E and the top of the rear crossbeam A. Similarly, the second upright plate G is placed on top of the right longitudinal beam E, with the lower end of the first upright plate F abutting against the right end face of the second base plate 3-1 and the two arm plates G-1 abutting against the front and rear sides of the second base plate 3-1. The second upright plate G is welded and fixedly connected to the top of the corresponding longitudinal beam E, and the two arm plates G-1 are welded and fixedly connected to the top of the corresponding longitudinal beam E and the top of the corresponding crossbeam A (see Appendix). Figure 15 Insert the lower ends of the two arm plates 4H-1 on the vertical plate 3H into the two notches 3-1b on the front side of the base plate 2 3-1 and the L-shaped notches 4-1 at both ends of the positioning plate 4. Weld the lower ends of the two arm plates 4H-1 to the top of the corresponding crossbeam A and fix them together (see Appendix). Figure 16 During the welding process, the top frame 1-2, base plate 1 2-1, base plate 2 3-1 and the workpiece can be rotated to a suitable welding position by starting the motor 1-4. After welding is completed, the screw 7 and base plate 2 3-1 are removed, and then the bolt assembly 2-3 on the four horizontal support legs D is disassembled to remove the welded support frame.

[0053] This utility model discloses a welding device for a support frame in a high-speed train braking system. First, the crossbeams, longitudinal beams, and horizontal legs are spliced ​​and positioned using a base plate support assembly. Second, the vertical plates are positioned and spliced ​​using a vertical plate positioning assembly and a positioning plate in tandem. Compared to traditional manual splicing methods, this significantly reduces the difficulty of splicing and positioning each component, effectively improving the accuracy and efficiency of splicing and positioning. This allows the components to be systematically spliced ​​and welded into a support frame in a specific order, effectively avoiding splicing errors and missing parts. The resulting welded support frame has high dimensional accuracy, greatly improving product quality and yield. During welding, the vertical rotation angle of the base plate can be flexibly adjusted using a flipping frame assembly, ensuring good welding accessibility and helping to alleviate welding fatigue. The overall welding efficiency is high, helping to meet the requirements for large-volume delivery of support frames.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding device for a support frame in a high-speed train braking system, characterized in that, The system includes a flip frame assembly (1), a base plate support assembly (2), and a vertical plate positioning assembly (3). The flip frame assembly (1) has a top frame (1-2) that can be flipped in the vertical direction. The base plate support assembly (2) includes a base plate (2-1) that is detachably mounted on the top frame (1-2). The four corners of the upper surface of the base plate (2-1) are respectively provided with pad positioning assemblies for positioning the corresponding horizontal legs (D) on the support frame. The front, middle, and rear sides of the upper surface of the base plate (2-1) are respectively fixed with several columns (2-4) for positioning the three crossbeams (A) on the support frame at intervals along the left and right horizontal length direction. The rear side of the upper surface of the base plate (2-1) is fixed with several vertical plates (2-5) for positioning the longitudinal beams (B) on the support frame at intervals along the left and right horizontal length direction. 2-1) Several vertical plates (2-6) for positioning and supporting the longitudinal beam (C) on the upper end face are fixed at intervals along the left and right horizontal length direction. The upper end face of the column (2-4), the upper end face of the vertical plate (2-5), and the upper end face of the vertical plate (2-6) are all provided with threaded holes. When in use, the crossbeam (A) is laid and fixed to the top of the corresponding column (2-4) by screws (7) that pass through the mounting hole (J) and the threaded hole of the corresponding column (2-4). The longitudinal beam (B) is laid and fixed to the top of the corresponding vertical plate (2-5) by screws (7) that pass through the mounting hole (J) and the threaded hole of the corresponding vertical plate (2-5). The longitudinal beam (C) is laid and fixed to the top of the corresponding vertical plate (2-6) by screws (7) that pass through the mounting hole (J) and the threaded hole of the corresponding vertical plate (2-6). The upright plate positioning assembly (3) includes a base plate two (3-1). The left edge of the upper surface of the base plate two (3-1) is fixed with a triangular positioning plate one (3-2) for positioning the first upright plate (F) on the support frame and a triangular positioning plate two (3-3) for positioning the upper arm plate two (F-3) of the support frame. The right edge of the upper surface of the base plate two (3-1) is fixed with a triangular positioning plate one (3-2) for positioning the second upright plate (G) on the support frame. The front and rear sides of the base plate two (3-1) are provided with threaded holes on the corresponding uprights (2-4) and mounting holes one (J) on the corresponding crossbeam (A). The corresponding mounting hole 2 (3-1c) is used in the following way: the base plate 2 (3-1) is laid and fixed to the top of the three crossbeams (A) on the support frame by screws (7) that pass through the mounting hole 2 (3-1c), the mounting hole 1 (J) on the corresponding crossbeam (A) and the threaded hole on the corresponding column (2-4). The front edge of the base plate 2 (3-1) has two notches 2 (3-1b) for inserting and positioning the two arm plates 4 (H-1) on the three upright plates 3 (H). The front edge of the base plate 2 (3-1) also has a notch 1 (3-1a) located between the two notches 2 (3-1b). It also includes a positioning plate (4) for positioning the upright plate three (H) on the support frame. The positioning plate (4) has L-shaped notches (4-1) with openings facing the front and outside at its left and right ends. The positioning plate (4) has several waist-shaped holes (4-2). The several waist-shaped holes (4-2) correspond one-to-one with the waist-shaped hole (A-1) located at the top right end of the front beam (A) of the support frame. In use, the positioning plate (4) is placed between the top right end of the front beam (A) of the support frame and the base plate two (3-1). The two L-shaped notches (4-1) at the left and right ends of the positioning plate (4) correspond one-to-one with the two notches (3-1b) on the base plate two (3-1). The waist-shaped holes (4-2) on the positioning plate (4) and the waist-shaped hole (A-1) located at the top right end of the front beam (A) of the support frame are connected with positioning pins (8).

2. The welding apparatus for a support frame of a railcar brake system according to claim 1, wherein The flipping frame assembly (1) further includes a base frame (1-1), with a set of upward-extending support legs (1-3) respectively provided on the left and right ends of the base frame (1-1). The middle parts of the left and right side frames of the top frame (1-2) are rotatably installed on the inner side of the upper end of the support legs (1-3) at the left and right ends of the base frame (1-1), and a motor (1-4) for driving the top frame (1-2) to flip vertically is installed on the outer side of the upper end of the support legs (1-3).

3. The welding equipment for a support frame in a train braking system as described in claim 2, characterized in that, The top frame (1-2) is provided with a threaded hole in the longitudinal direction, and the base plate (2-1) is provided with a plurality of mounting holes (2-8) corresponding to the threaded holes on the top frame (1-2). The base plate (2-1) is fixedly installed on the top frame (1-2) by bolt assembly (5) passing through the mounting holes (2-8) and the threaded holes on the top frame (1-2).

4. The welding equipment for a support frame in a train braking system as described in claim 3, characterized in that, The pad positioning assembly includes a pad (2-2) fixed to the upper corner of the base plate (2-1). The front or rear side of the pad (2-2) is fixed with a backing block (2-2a) for positioning the horizontal support leg (D) on the support frame. The pad (2-2) has an oblong through hole (2-2b) corresponding to the oblong mounting hole on the horizontal support leg (D). In use, the horizontal support leg (D) is fixed and locked to the top of the pad (2-2) by a bolt assembly (2-3) that passes through the oblong mounting hole, the oblong through hole (2-2b) and the threaded hole at the corner of the base plate (2-1).

5. The welding equipment for a support frame in a train braking system as described in claim 4, characterized in that, The bolt assembly two (2-3) includes a screw rod (2-3a) and a waist-shaped pad (2-3b) embedded in the waist-shaped through hole (2-2b). The height of the waist-shaped pad (2-3b) is greater than the depth of the waist-shaped through hole (2-2b). The waist-shaped pad (2-3b) has a through hole (2-3c) that passes through both the upper and lower end faces. The screw rod (2-3a) passes through the through hole (2-3c), and the lower end of the screw rod (2-3a) is screwed into the threaded hole corresponding to the corner of the base plate one (2-1).

6. The welding equipment for a support frame in a train braking system as described in claim 5, characterized in that, Both substrate one (2-1) and substrate two (3-1) are provided with weight reduction holes (6), and a lifting ring (2-7) is fixed at the upper corner of substrate one (2-1).

7. The welding equipment for a support frame in a train braking system as described in any one of claims 2 to 6, characterized in that, The bottom frame (1-1) is equipped with rollers (1-5) on its lower end face.

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