CN216067158U - Assembly tool for motor hanging seat assembly of bogie of railway passenger car - Google Patents
Assembly tool for motor hanging seat assembly of bogie of railway passenger car Download PDFInfo
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- CN216067158U CN216067158U CN202122687883.6U CN202122687883U CN216067158U CN 216067158 U CN216067158 U CN 216067158U CN 202122687883 U CN202122687883 U CN 202122687883U CN 216067158 U CN216067158 U CN 216067158U
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- hanging seat
- motor hanging
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- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
Group is constituteed to railway vehicle bogie motor hanger seat and is constituteed the group to frock relates to railway vehicle bogie motor hanger seat and constitutes group to technical field, and this frock includes card strip positioning mechanism, riser distance mechanism and backup pad positioning mechanism, card strip positioning mechanism includes ladder platform, transverse location thin piece, transverse location thick piece, two vertical locating pieces and height location right-angle groove. The tool replaces manual assembly, the clamping strip positioning mechanism ensures that the clamping strip of the motor hanging seat and the edge of the upper cover plate of the motor hanging seat are horizontal, the vertical plate spacing mechanism ensures that three vertical plates of the motor hanging seat are perpendicular to the panel of the motor hanging seat and have equal distance, and the supporting plate positioning mechanism ensures that two supporting plates of the motor hanging seat are horizontally symmetrical, thereby meeting all requirements of assembly, ensuring the stability and reliability of the motor hanging seat in group time alignment, having high assembly precision and zero repair rate, improving the production efficiency by 5-10 times, reducing the labor intensity of operators and saving the cost.
Description
Technical Field
The utility model relates to the technical field of assembly of motor hanging seat assemblies of a railway vehicle bogie, in particular to an assembly tool of the motor hanging seat assemblies of the railway vehicle bogie.
Background
As shown in fig. 1 and 2, a motor hanger assembly 1 of a railway passenger car bogie comprises a motor hanger panel 1-1, motor hanger vertical plates 1-2, a motor hanger upper cover plate 1-3, motor hanger clamping strips 1-4 and motor hanger support plates 1-5, wherein in the bogie manufacturing process, three motor hanger vertical plates 1-2 need to be respectively assembled on the upper end surface of the motor hanger panel 1-1; the lower end surface of the motor hanging seat panel 1-1 is assembled with two motor hanging seat supporting plates 1-5; assembling an upper cover plate 1-3 of the motor hanging seat on the side vertical surface group of the motor hanging seat panel 1-1 and the motor hanging seat vertical plate 1-2; the upper end surface of the upper cover plate 1-3 of the motor hanging seat is assembled with a motor hanging seat clamping strip 1-4.
When the motor hanging seat vertical plates are assembled, the three motor hanging seat vertical plates 1-2 are required to be perpendicular to the motor hanging seat panel 1-1 and have equal intervals; the two motor hanging seat supporting plates 1-5 are horizontally symmetrical, and the motor hanging seat clamping strips 1-4 are horizontal to the edges of the motor hanging seat upper cover plates 1-3; as the subsequent welding and numerical control machining procedures are involved, the assembly error of the procedures is required to be 0, and the dimensional error of the subsequent numerical control machining can be caused by slight deviation, so that the workpiece is scrapped.
In the existing assembly method, before an operator assembles, dimension lines required by each motor hanging seat vertical plate 1-2 and each motor hanging seat supporting plate 1-5 need to be drawn on the upper end surface and the lower end surface of a motor hanging seat panel 1-1 by a measuring ruler, then the three motor hanging seat vertical plates 1-2 are respectively placed on the dimension lines drawn on the upper end surface of the motor hanging seat panel 1-1 for assembly and spot fixation, and then the dimension lines are drawn by the measuring ruler for spot fixation on a motor hanging seat upper cover plate 1-3, a motor hanging seat clamping strip 1-4 and a motor hanging seat supporting plate 1-5. And after finishing, repeating the ruler for the motor hanging seat assembly 1, and determining whether the dimensions in all directions meet the requirements of drawings. Because the assembly process requirement cannot have errors, when manual assembly is carried out, the error of the gauge marking of an operator can be caused in batch production, the motor hanging seat vertical plates 1-2 after assembly are not perpendicular to the motor hanging seat panel 1-1, the motor hanging seat clamping strips 1-4 and the motor hanging seat supporting plates 1-5, the motor hanging seat upper cover plate 1-3 and the motor hanging seat panel 1-1 cannot meet the horizontal requirement, and the final assembly precision cannot be ensured. The repair rate is extremely high, the production cost is increased, the labor intensity of operators is increased, the production efficiency is low, and the production is severely restricted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pairing tool consisting of motor hanging seats of a bogie of a railway passenger car, aiming at solving the technical problems that the existing manual pairing mode cannot ensure the pairing precision, has extremely high repair rate and low production efficiency.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the assembling tool is characterized by comprising a clamping strip positioning mechanism, a vertical plate spacing mechanism and a supporting plate positioning mechanism, wherein the clamping strip positioning mechanism comprises a stepped platform, a transverse positioning thin block, a transverse positioning thick block, two longitudinal positioning blocks and a height positioning right-angle groove;
the height difference between the upper layer platform and the lower layer platform of the step platform is equal to the height difference between the bottom surfaces of the motor hanging seat panel and the motor hanging seat upper cover plate which are formed by the motor hanging seat;
the bottom ends of the transverse positioning thin block and the transverse positioning thick block are fixedly connected to the right side of the upper end surface of the upper-layer platform, the upper limiting surfaces of the transverse positioning thin block and the transverse positioning thick block are coplanar, and the distance between the lower limiting surfaces of the transverse positioning thin block and the transverse positioning thick block is equal to the distance between the edge A and the edge B of the motor hanging seat panel; the distance between the upper limiting surface of the transverse positioning thin block and the lower limiting surface of the transverse positioning thin block is equal to the distance between the right end surface of the right motor hanging seat vertical plate and the edge A of the motor hanging seat panel, and the distance between the upper limiting surface of the transverse positioning thick block and the lower limiting surface of the transverse positioning thin block is equal to the distance between the right end surface of the right motor hanging seat vertical plate and the edge B of the motor hanging seat panel;
the bottom ends of the two longitudinal positioning blocks are fixedly connected to the two ends of the lower-layer platform, the limiting surfaces of the two longitudinal positioning blocks are coplanar, and the distance between the two longitudinal positioning blocks is smaller than the maximum length of the upper cover plate of the motor hanging seat;
the bottom surface of the horizontal section of the height positioning right-angle groove is fixedly connected with the upper end surface of the lower-layer platform, the horizontal section is parallel to the lower-layer platform, the thickness of the horizontal section is equal to the height difference between the bottom surface of the motor hanging seat clamping strip and the bottom surface of the upper cover plate of the motor hanging seat, and the distance from the limiting surface of the vertical section of the height positioning right-angle groove to the limiting surface of the longitudinal positioning block is equal to the thickness of the motor hanging seat clamping strip;
the vertical plate spacing mechanism is used for positioning the distance between three vertical plates of the motor hanging seat formed by the motor hanging seats, and the supporting plate positioning mechanism is used for positioning the positions of two supporting plates of the motor hanging seat formed by the motor hanging seats.
The utility model has the beneficial effects that: the tool replaces manual assembly, the edge of a motor hanging seat clamping strip and the edge of a motor hanging seat upper cover plate are horizontal by the clamping strip positioning mechanism, three motor hanging seat vertical plates are perpendicular to a motor hanging seat panel and are equal in distance by the vertical plate distance mechanism, two motor hanging seat supporting plates are horizontally symmetrical by the supporting plate positioning mechanism, all requirements of assembly are met, the stability and reliability of the motor hanging seat assembly in group time setting are guaranteed, the assembly precision of each time is guaranteed, the zero repair rate is guaranteed, the production efficiency is improved by 5-10 times, the labor intensity of an operator is reduced, and the labor and the production cost are saved; the tool is simple in structure and convenient to operate, reduces the assembly operation difficulty, and ensures the production quality.
Drawings
Fig. 1 is a schematic structural diagram of a motor hanging seat assembly of a railway passenger car bogie.
Fig. 2 is a schematic structural diagram of the assembled motor hanger panel and two motor hanger support plates.
FIG. 3 is a schematic structural diagram of a pairing tool formed by motor hanging seats of a railway passenger car bogie.
Fig. 4 is a schematic view of the application of the clamping strip positioning mechanism and the vertical plate spacing mechanism in the utility model.
Fig. 5 is a schematic view of the structure of fig. 4 from another view angle.
Fig. 6 is a schematic structural diagram of the present invention before the motor hanger panel and two motor hanger support plate pairs are assembled by the support plate positioning mechanism.
Fig. 7 is a schematic structural diagram of the present invention illustrating a motor hanger panel and two motor hanger support plate pairs by using a support plate positioning mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the assembling tool for the motor hanging seat assembly of the railway passenger car bogie comprises: the vertical plate positioning mechanism comprises a step platform 2, a transverse positioning thin block 3, a transverse positioning thick block 4, two longitudinal positioning blocks 5, a height positioning right-angle groove 6 and two platform lifting lugs 7, wherein the height difference between an upper platform 2-1 and a lower platform 2-2 of the step platform 2 is equal to the height difference between the bottom surfaces of the connecting part of a motor hanging seat panel 1-1 and a motor hanging seat upper cover plate 1-3 of a motor hanging seat assembly 1; the two platform lifting lugs 7 are arranged in parallel and are vertically and fixedly connected with two angular positions, far away from the two longitudinal positioning blocks 5, of the upper end face of the upper-layer platform 2-1, and the top parts of the two longitudinal positioning blocks 5 are respectively provided with a lifting hole, so that the pair of assembly tools can be conveniently lifted.
The bottom ends of the transverse positioning thin block 3 and the transverse positioning thick block 4 are fixedly connected to the right side of the upper end surface of the upper-layer platform 2-1, the upper limiting surfaces of the transverse positioning thin block 3 and the transverse positioning thick block 4 are coplanar, and the distance between the lower limiting surfaces of the transverse positioning thin block 3 and the transverse positioning thick block 4 is equal to the distance between the edge A and the edge B of the motor hanging seat panel 1-1; the distance between the upper limiting surface of the transverse positioning thin block 3 and the lower limiting surface thereof is equal to the distance between the right end surface of the right motor hanging seat vertical plate 1-2 and the edge A of the motor hanging seat panel 1-1, and the distance between the upper limiting surface of the transverse positioning thick block 4 and the lower limiting surface thereof is equal to the distance between the right end surface of the right motor hanging seat vertical plate 1-2 and the edge B of the motor hanging seat panel 1-1; the lower limiting surfaces of the transverse positioning thin block 3 and the transverse positioning thick block 4 are used for limiting the position of the edge A and the edge B of the motor hanging seat panel 1-1 on the assembling tool, and the upper limiting surfaces of the transverse positioning thin block 3 and the transverse positioning thick block 4 are used for limiting the position of the rightmost motor hanging seat vertical plate 1-2 on the motor hanging seat panel 1-1.
The bottom ends of the two longitudinal positioning blocks 5 are fixedly connected to the two ends of the lower-layer platform 2-2, the limiting surfaces of the two longitudinal positioning blocks 5 are coplanar, and the distance between the two longitudinal positioning blocks 5 is smaller than the maximum length of the upper cover plate 1-3 of the motor hanging seat; the two longitudinal positioning blocks 5 are used for limiting the position of the upper cover plate 1-3 of the motor hanging seat on the assembly tool.
The bottom surface of a horizontal section 6-1 of the height positioning right-angle groove 6 is fixedly connected with the upper end surface of a lower platform 2-2, the horizontal section 6-1 is parallel to the lower platform 2-2, the thickness of the horizontal section 6-1 is equal to the height difference between the bottom surface of a motor hanging seat clamping strip 1-4 and the bottom surface of a motor hanging seat upper cover plate 1-3, and the distance from a limiting surface of a vertical section 6-2 of the height positioning right-angle groove 6 to a limiting surface of a longitudinal positioning block 5 is equal to the thickness of the motor hanging seat clamping strip 1-4; the height positioning right-angle groove 6 is used for limiting the position of the motor hanging seat clamping strips 1-4 on the upper cover plate 1-3 of the motor hanging seat.
The vertical plate distance-setting mechanism is used for setting the distance between three vertical plates 1-2 of the motor hanging seat formed by the motor hanging seat 1, the vertical plate distance-setting mechanism comprises two distance pipes 8 and a handle 9, the two distance pipes 8 are arranged in parallel and are connected by the handle 9, and the length of each distance pipe 8 is equal to the distance between the vertical plates 1-2 of the adjacent two motor hanging seats.
The supporting plate positioning mechanism is used for positioning the positions of two motor hanging seat supporting plates 1-5 on a motor hanging seat panel 1-1, the supporting plate positioning mechanism comprises a positioning frame 10 and four limiting plates 11, the positioning frame 10 is a right-angle door frame structure formed by welding a right-angle cross beam 10-1 and two right-angle longitudinal beams 10-2, two corners of the front surface of the positioning frame 10 respectively form a three-edge right-angle positioning clamping groove 10-3, the length between the two three-edge right-angle positioning clamping grooves 10-3 is equal to the length of the motor hanging seat panel 1-1 close to one side of the two motor hanging seat supporting plates 1-5, so that the positioning frame 10 is just sleeved on the motor hanging seat panel 1-1; the width of a vertical plate 10-1-1 of the right-angle beam 10-1 is equal to the distance between the edge C of the two motor hanging seat supporting plates 1-5 and the edge D of the motor hanging seat panel 1-1, so as to position the longitudinal positions of the two motor hanging seat supporting plates 1-5 on the motor hanging seat panel 1-1; the four limiting plates 11 are arranged in parallel and are vertically fixedly connected to the back of the vertical plate 10-1-1, the distance from the inner end face of the rightmost limiting plate 11 to the outer end face of the right-side right-angle longitudinal beam 10-2 is equal to the distance from the outer end face of the right-side motor hanging seat supporting plate 1-5 to the edge A of the motor hanging seat panel 1-1, the distance between the two limiting plates 11 on the outer side and the adjacent limiting plates 11 is equal to the width of the motor hanging seat supporting plate 1-5, and the distance between the two limiting plates 11 on the outer side is equal to the distance between the outer end faces of the two motor hanging seat supporting plates 1-5, so that the transverse positions of the two motor hanging seat supporting plates 1-5 on the motor hanging seat panel 1-1 are positioned.
As shown in fig. 4 to 7, the assembly process of the assembly tool for assembling the motor hanging seat of the railway carriage bogie comprises the following steps: placing the motor hanging seat panel 1-1 on the upper end face of the tool upper-layer platform 2-1, and attaching the right end face of the motor hanging seat panel 1-1 to the lower limiting faces of the transverse positioning thin block 3 and the transverse positioning thick block 4; placing an upper cover plate 1-3 of the motor hanging seat on the upper end surface of a lower platform 2-2 of the tool, attaching the rear end surface of the upper cover plate to the end surface of an upper platform 2-1 of the tool, and attaching two ends of the upper cover plate 1-3 of the motor hanging seat to the end surfaces of two longitudinal positioning blocks 5; placing the rightmost motor hanging seat vertical plate 1-2 at the upper end face of a motor hanging seat panel 1-1, and attaching the motor hanging seat vertical plate to the upper limiting faces of the transverse positioning thin block 3 and the transverse positioning thick block 4 of the tool, and simultaneously attaching the motor hanging seat vertical plate to the rear end face of an upper cover plate 1-3 of a motor hanging seat; placing two distance tubes 8 of the vertical plate distance mechanism on the upper end surface of the motor hanging seat panel 1-1 and attaching the two distance tubes to the end surface of the rightmost motor hanging seat vertical plate 1-2, and fixing the motor hanging seat vertical plate 1-2 and the motor hanging seat panel 1-1; then placing two distance tubes 8 on the upper end surface of the motor hanging seat panel 1-1 and attaching the distance tubes to the end surface of the middle motor hanging seat vertical plate 1-2, and fixedly pointing the middle motor hanging seat vertical plate 1-2 and the motor hanging seat panel 1-1; and assembling the left-most motor hanging seat vertical plate 1-2 by the same method and performing point fixing. Then, the motor hanging seat clamping strips 1-4 are placed in the right-angle grooves of the height positioning right-angle grooves 6 and are attached to the limiting surfaces of the vertical sections 6-2, and are attached to the upper cover plate 1-3 of the motor hanging seat at the same time, and the motor hanging seat clamping strips 1-4 and the upper cover plate 1-3 of the motor hanging seat are tack-welded. Then, forming a part of assembled motor hanging seats into a separation assembling tool, as shown in fig. 6 and 7, placing a support plate positioning mechanism on the end surface of a motor hanging seat panel 1-1, placing the end part of the motor hanging seat panel 1-1 into a three-edge right-angle positioning clamping groove 10-3 for fitting, placing two motor hanging seat support plates 1-5 into two rectangular frames on the outer side formed by four limiting plates 11 respectively, fitting the motor hanging seat support plates 1-5 with the inner end surfaces of the limiting plates 11 and the lower end surfaces of vertical plates 10-1-1, and then fixedly pointing the two motor hanging seat support plates 1-5 with the motor hanging seat panel 1-1 to complete the assembling process of the motor hanging seat.
Claims (4)
1. The assembling tool is characterized by comprising a clamping strip positioning mechanism, a vertical plate spacing mechanism and a supporting plate positioning mechanism, wherein the clamping strip positioning mechanism comprises a stepped platform (2), a transverse positioning thin block (3), a transverse positioning thick block (4), two longitudinal positioning blocks (5) and a height positioning right-angle groove (6);
the height difference between the upper layer platform (2-1) and the lower layer platform (2-2) of the step platform (2) is equal to the height difference between the bottom surfaces of the motor hanging seat panel (1-1) of the motor hanging seat assembly (1) and the motor hanging seat upper cover plate (1-3);
the bottom ends of the transverse positioning thin block (3) and the transverse positioning thick block (4) are fixedly connected to the right side of the upper end surface of the upper-layer platform (2-1), the upper limiting surfaces of the transverse positioning thin block (3) and the transverse positioning thick block (4) are coplanar, and the distance between the lower limiting surfaces of the transverse positioning thin block (3) and the transverse positioning thick block (4) is equal to the distance between the edge A and the edge B of the motor hanging seat panel (1-1); the distance between the upper limiting surface of the transverse positioning thin block (3) and the lower limiting surface thereof is equal to the distance between the right end surface of the right motor hanging seat vertical plate (1-2) and the edge A of the motor hanging seat panel (1-1), and the distance between the upper limiting surface of the transverse positioning thick block (4) and the lower limiting surface thereof is equal to the distance between the right end surface of the right motor hanging seat vertical plate (1-2) and the edge B of the motor hanging seat panel (1-1);
the bottom ends of the two longitudinal positioning blocks (5) are fixedly connected to the two ends of the lower-layer platform (2-2), the limiting surfaces of the two longitudinal positioning blocks (5) are coplanar, and the distance between the two longitudinal positioning blocks (5) is smaller than the maximum length of the upper cover plate (1-3) of the motor hanging seat;
the bottom surface of a horizontal section (6-1) of the height positioning right-angle groove (6) is fixedly connected with the upper end surface of a lower-layer platform (2-2), the horizontal section (6-1) is parallel to the lower-layer platform (2-2), the thickness of the horizontal section (6-1) is equal to the height difference between the bottom surface of a motor hanging seat clamping strip (1-4) and the bottom surface of a motor hanging seat upper cover plate (1-3), and the distance from a limiting surface of a vertical section (6-2) of the height positioning right-angle groove (6) to a limiting surface of a longitudinal positioning block (5) is equal to the thickness of the motor hanging seat clamping strip (1-4);
the vertical plate spacing mechanism is used for positioning the distance between three vertical plates (1-2) of the motor hanging seat assembly (1), and the supporting plate positioning mechanism is used for positioning the positions of two supporting plates (1-5) of the motor hanging seat assembly (1).
2. The assembly tooling for motor hanger components of the railway passenger car bogie as claimed in claim 1, wherein the riser spacing mechanism comprises two spacing tubes (8) and a handle (9), the two spacing tubes (8) are arranged in parallel and connected by the handle (9), and the length of the spacing tube (8) is equal to the distance between two adjacent motor hanger riser (1-2).
3. The pairing tool for the motor hanging seat assemblies of the railway passenger car bogie as claimed in claim 2, wherein the supporting plate positioning mechanism comprises a positioning frame (10) and four limiting plates (11), the positioning frame (10) is a right-angle door frame structure formed by welding a right-angle cross beam (10-1) and two right-angle longitudinal beams (10-2), two corners of the front surface of the positioning frame (10) respectively form a three-edge right-angle positioning clamping groove (10-3), and the length between the two three-edge right-angle positioning clamping grooves (10-3) is equal to the length of the motor hanging seat panel (1-1) close to one side of the two motor hanging seat supporting plates (1-5); the width of a vertical plate (10-1-1) of the right-angle beam (10-1) is equal to the distance between the edge C of the two motor hanging seat supporting plates (1-5) and the edge D of the motor hanging seat panel (1-1); the four limiting plates (11) are arranged in parallel and are vertically and fixedly connected to the back of the vertical plate (10-1-1), the distance from the inner end face of the rightmost limiting plate (11) to the outer end face of the right-side right-angle longitudinal beam (10-2) is equal to the distance from the outer end face of the right-side motor hanging seat supporting plate (1-5) to the edge A of the motor hanging seat panel (1-1), the distance between the two limiting plates (11) on the outer side and the adjacent limiting plates (11) respectively is equal to the width of the motor hanging seat supporting plate (1-5), and the distance between the two limiting plates (11) on the outer side is equal to the distance between the outer end faces of the two motor hanging seat supporting plates (1-5).
4. The assembly tooling for the motor hanging seat assembly of the railway passenger car bogie is characterized in that the assembly tooling further comprises two platform lifting lugs (7), the two platform lifting lugs (7) are arranged in parallel and are vertically and fixedly connected to two angular positions, away from the two longitudinal positioning blocks (5), of the upper end surface of the upper-layer platform (2-1), and the top parts of the two longitudinal positioning blocks (5) are respectively provided with a lifting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687883.6U CN216067158U (en) | 2021-11-04 | 2021-11-04 | Assembly tool for motor hanging seat assembly of bogie of railway passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687883.6U CN216067158U (en) | 2021-11-04 | 2021-11-04 | Assembly tool for motor hanging seat assembly of bogie of railway passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216067158U true CN216067158U (en) | 2022-03-18 |
Family
ID=80659174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122687883.6U Withdrawn - After Issue CN216067158U (en) | 2021-11-04 | 2021-11-04 | Assembly tool for motor hanging seat assembly of bogie of railway passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216067158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787480A (en) * | 2021-11-04 | 2021-12-14 | 中车长春轨道客车股份有限公司 | Assembly tool and assembly process for motor hanging seat assembly of bogie of railway passenger car |
-
2021
- 2021-11-04 CN CN202122687883.6U patent/CN216067158U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787480A (en) * | 2021-11-04 | 2021-12-14 | 中车长春轨道客车股份有限公司 | Assembly tool and assembly process for motor hanging seat assembly of bogie of railway passenger car |
| CN113787480B (en) * | 2021-11-04 | 2024-07-26 | 中车长春轨道客车股份有限公司 | Pairing tool and pairing process for motor hanging seats of railway carriage bogie |
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