CN216227734U - Following type positioning tool for welding side beam of bogie of railway vehicle - Google Patents
Following type positioning tool for welding side beam of bogie of railway vehicle Download PDFInfo
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- CN216227734U CN216227734U CN202122718777.XU CN202122718777U CN216227734U CN 216227734 U CN216227734 U CN 216227734U CN 202122718777 U CN202122718777 U CN 202122718777U CN 216227734 U CN216227734 U CN 216227734U
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Abstract
A conformal positioning tool for welding a side beam of a railway vehicle bogie relates to the technical field of welding of the side beam of the railway vehicle bogie, and comprises a tool platform, a side beam middle positioning mechanism, a side beam end conformal supporting mechanism, a side beam end pressing mechanism, a side jacking mechanism and a positioner connecting seat; the shape following supporting mechanism for the end part of the side beam comprises a supporting base, a ball head, a locking nut, a plurality of limiting columns, a supporting platform and a nylon cushion block. The utility model has the beneficial effects that: by utilizing the shape following support mechanism at the end part of the side beam in the positioning tool, the manufacturing tolerance generated in the welding process of the side beam is automatically corrected, the side beam is closely attached to the tool in a supporting and positioning manner, the clamping state of the side beam is further improved, the stress balance of all parts after the side beam is compressed is effectively ensured, and the welding distortion of the side beam is reduced.
Description
Technical Field
The utility model relates to the technical field of welding of side beams of a railway vehicle bogie, in particular to a conformal positioning tool for welding the side beams of the railway vehicle bogie.
Background
As shown in figures 1 and 2, a side beam 1 of a railway vehicle bogie comprises a wing-shaped side beam 1-1 in the middle and end side beams 1-2 at two ends, wherein an air spring seat 1-3 which penetrates up and down is arranged in the middle of the wing-shaped side beam 1-1, a riser 1-4 is arranged on the end side beam 1-2, and the wing-shaped side beam 1-1 is welded with the end side beams 1-2.
In the prior art, the side beam welding tool of the railway vehicle bogie is placed by reversely assembling workpieces, two ends of an upper cover plate of a side beam fall on a table surface of the tool and tightly press the table surface, and supports at two ends of the side beam are positioned by adopting three-point bolts. The drawback of this frock lies in: because the side beam has inevitable manufacturing tolerance in the production process, the plane of the side beam upper cover plate at the position of the end side beam 1-2 and the plane formed by supporting and positioning the tool cannot be completely parallel after the wing-shaped side beam 1-1 and the end side beam 1-2 are welded. Therefore, when the side beam is installed and clamped, the three-point positioning bolts supported by the two sides cannot be tightly attached to the workpiece, and gaps exist between 1-2 bolts and the workpiece frequently. When the tool is pressed by applying force from the upper part, the individual supporting points are in a suspended state, so that the stress of the side beam is unbalanced. The unbalanced stress condition leads to the increase of the whole distortion and deformation of the side beam during the welding and heating process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a conformal positioning tool for welding a side beam of a railway vehicle bogie, aiming at solving the technical problems that a supporting and positioning plane of the existing welding tool cannot be tightly attached to a plane formed by two ends of an upper cover plate of the side beam, and the stress of the side beam is unbalanced due to the fact that individual supporting points are in a suspended state during clamping, so that the overall distortion and deformation are increased in the welding and heating process of the side beam.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the tooling is characterized by comprising a tooling platform, a side beam middle positioning mechanism, a side beam end shape following supporting mechanism, a side beam end pressing mechanism, a side jacking mechanism and a positioner connecting seat; the side beam middle positioning mechanism is fixedly connected to the middle of the tooling platform and is used for positioning the middle of the side beam; the shape following support mechanisms at the end parts of the side beams are fixedly connected to two ends of the tooling platform and are used for positioning the end parts of the side beams along with the shape; the side beam end part pressing mechanisms are fixedly connected to two ends of the tooling platform and are used for pressing the end parts of the side beams; the side jacking mechanisms are fixedly connected to two ends of the tooling platform and used for laterally jacking the end parts of the side beams; the positioner connecting seat is fixedly connected to the middle of the bottom surface of the tooling platform and is used for connecting the tooling platform with the positioner.
The shape following support mechanism for the end part of the side beam comprises a support base, a ball head, a locking nut, a plurality of limiting columns, a support platform and nylon cushion blocks, wherein the support base is fixedly connected to two ends of a tooling platform, and a cylindrical groove is formed in the center of the support base; the locking nut is fixedly connected to the center of the supporting base and is coaxially arranged with the cylindrical groove; the middle part of the ball head is provided with threads, the lower part of the ball head is inserted into the cylindrical groove, and the middle part of the ball head is in threaded connection with the locking nut; the bottom ends of the limiting columns are fixedly connected to the supporting base and are rotationally and symmetrically arranged by taking the ball head as a center, and the height of the limiting columns is smaller than the height of the ball head exposed on the supporting base; the nylon cushion block is fixedly connected with the upper end face of the supporting platform, a ball seat is arranged in the center of the lower end face of the supporting platform, and the upper part of the ball head is arranged in the ball seat and is rotationally connected with the ball seat; when the supporting platform is in a horizontal state, gaps are reserved between the lower end face of the supporting platform and the upper end faces of the limiting columns.
The utility model has the beneficial effects that: by utilizing the shape following support mechanism at the end part of the side beam in the positioning tool, the manufacturing tolerance generated in the welding process of the side beam is automatically corrected, the side beam is closely attached to the tool in a supporting and positioning manner, the clamping state of the side beam is further improved, the stress balance of all parts after the side beam is compressed is effectively ensured, and the welding distortion of the side beam is reduced.
Drawings
Fig. 1 is a schematic view of a railway vehicle bogie side rail inverted arrangement.
Fig. 2 is a front view schematically showing the structure of fig. 1.
FIG. 3 is a schematic structural diagram of the following type positioning tool for welding the side beam of the railway vehicle bogie.
Fig. 4 is a schematic structural view of the side sill end conformal support mechanism in the present invention.
Fig. 5 is a schematic view of the partially exploded structure of fig. 4.
Fig. 6 is a schematic longitudinal sectional structure of fig. 4.
FIG. 7 is a schematic application diagram of the following type positioning tool for welding the side beam of the railway vehicle bogie.
Fig. 8 is a schematic top view of the structure of fig. 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3 to 8, the following positioning tool for welding the side beam of the railway vehicle bogie comprises: the side beam positioning device comprises a tooling platform 2, a side beam middle positioning mechanism 3, a side beam end conformal supporting mechanism 4, a side beam end pressing mechanism 5, a side jacking mechanism 6 and a positioner connecting seat 7; the side beam middle positioning mechanism 3 is fixedly connected to the middle of the tooling platform 2 and is used for positioning the middle of the side beam 1; the shape following supporting mechanisms 4 at the end parts of the side beams are fixedly connected to two ends of the tooling platform 2 and are used for positioning the end parts of the side beams 1 in a shape following manner; the side beam end part pressing mechanisms 5 are fixedly connected to two ends of the tooling platform 2 and are used for pressing the end parts of the side beams 1; the side jacking mechanisms 6 are fixedly connected to two ends of the tooling platform 2 and used for laterally jacking the end parts of the side beams 1; the positioner connecting seat 7 is fixedly connected to the middle of the bottom surface of the tooling platform 2 and is used for connecting the tooling platform 2 with a positioner.
The shape following support mechanism 4 for the end part of the side beam comprises a support base 4-1, a ball head 4-2, a locking nut 4-3, a plurality of limiting columns 4-4, a support platform 4-5 and nylon cushion blocks 4-6, wherein the support base 4-1 is fixedly connected to two ends of a tool platform 2, and a cylindrical groove is formed in the center of the support base 4-1; the locking nut 4-3 is fixedly connected to the center of the supporting base 4-1, and the locking nut 4-3 is coaxially arranged with the cylindrical groove; the middle part of the ball head 4-2 is provided with threads, the lower part of the ball head 4-2 is inserted into the cylindrical groove, and the middle part of the ball head 4-2 is in threaded connection with the locking nut 4-3; the bottom ends of the limiting columns 4-4 are fixedly connected to the supporting base 4-1 and are rotationally and symmetrically arranged by taking the ball head 4-2 as a center, and the height of the limiting columns 4-4 is smaller than the height of the ball head 4-2 exposed on the supporting base 4-1; the nylon cushion block 4-6 is fixedly connected with the upper end face of the supporting platform 4-5, a ball seat is arranged in the center of the lower end face of the supporting platform 4-5, and the upper part of the ball head 4-2 is arranged in the ball seat and is rotatably connected with the ball seat; when the supporting platform 4-5 is in a horizontal state, a gap is reserved between the lower end face of the supporting platform 4-5 and the upper end faces of the limiting columns 4-4, so that the supporting platform 4-5 can slightly rotate around the ball head 4-2, and the supporting platform 4-5 can completely fit with the lower end face of the end part of the side beam 1.
The middle positioning mechanism 3 of the side beam comprises a positioning base 3-1 and a positioning bolt assembly 3-2, wherein the bottom of the positioning base 3-1 is fixedly connected to the middle of a tooling platform 2, and the top of the positioning base 3-1 is provided with a secondary round platform structure 3-1-1 for positioning an air spring seat 1-3 on the side beam 1; one end of a bolt of the positioning bolt assembly 3-2 is fixedly connected to the center of the top of the secondary circular truncated cone structure 3-1-1, the other end of the bolt is connected with a nut, and the length of the bolt is larger than the thickness of the middle part of the side beam 1.
The end part pressing mechanism 5 of the side beam comprises two pressing bolt assemblies 5-1 and a pressing rod 5-2, wherein the two pressing bolt assemblies 5-1 are arranged in parallel, the bottoms of the two pressing bolt assemblies 5-1 are fixedly connected to the two ends of a tooling platform 2, and the two ends of the pressing rod 5-2 are respectively sleeved on the bolt ends of the two pressing bolt assemblies 5-1 and are locked by the threaded connection of the nut end and the bolt end.
The side tightening mechanism 6 of the present invention is a screw tightening structure composed of a bolt and a nut.
As shown in figures 7 and 8, when the conformal positioning tool for welding the side beam of the railway vehicle bogie is used, when the side beam 1 falls on the tool, firstly, a bolt of a positioning bolt assembly 3-2 penetrates through an air spring seat 1-3, so that the air spring seat 1-3 is seated on a secondary circular truncated cone structure 3-1-1 and is locked and fixed by a nut of the positioning bolt assembly 3-2. The top hat barrel 1-4 of the end side beam 1-2 is firstly contacted with the nylon cushion block 4-6 on the upper end surface of the supporting platform 4-5, before the side beam 1 is not completely contacted and firmly leaned against the shape following supporting mechanism 4 on the end part of the side beam, the supporting platform 4-5 rotates along the bulb 4-2 under the pressure action of the side beam 1 until the nylon cushion block 4-6 on the upper end surface of the supporting platform 4-5 is completely attached to the plane of the top hat barrel 1-4 and then stops rotating, thereby achieving a balanced state. Then, laterally jacking the end side beam 1-2 by using a lateral jacking mechanism 6 to ensure that the side beam 1 and the tool are firmly clamped; meanwhile, a balance force is applied to the end side beam 1-2 by using a pressure rod 5-2 of the side beam end pressing mechanism 5 for clamping, and then the tooling and the side beam 1 are connected to a positioner together by using a positioner connecting seat 7 to implement a welding process.
Claims (5)
1. The free-form positioning tool for welding the side beam of the railway vehicle bogie is characterized by comprising a tool platform (2), a side beam middle positioning mechanism (3), a side beam end free-form supporting mechanism (4), a side beam end pressing mechanism (5), a side jacking mechanism (6) and a positioner connecting seat (7); the side beam middle positioning mechanism (3) is fixedly connected to the middle of the tooling platform (2) and is used for positioning the middle of the side beam (1); the shape following supporting mechanisms (4) at the end parts of the side beams are fixedly connected to two ends of the tooling platform (2) and are used for positioning the end parts of the side beams (1) along with the shape; the side beam end part pressing mechanisms (5) are fixedly connected to two ends of the tooling platform (2) and are used for pressing the end parts of the side beams (1); the side jacking mechanisms (6) are fixedly connected to two ends of the tooling platform (2) and used for laterally jacking the end parts of the side beams (1); the positioner connecting seat (7) is fixedly connected to the middle of the bottom surface of the tooling platform (2) and is used for connecting the tooling platform (2) with the positioner.
2. The conformal positioning tool for welding the side beam of the railway vehicle bogie according to claim 1, wherein the conformal supporting mechanism (4) for the end part of the side beam comprises a supporting base (4-1), a ball head (4-2), a locking nut (4-3), a plurality of limiting columns (4-4), a supporting platform (4-5) and nylon cushion blocks (4-6), the supporting base (4-1) is fixedly connected to two ends of the tool platform (2), and a cylindrical groove is formed in the center of the supporting base (4-1); the locking nut (4-3) is fixedly connected to the center of the supporting base (4-1), and the locking nut (4-3) and the cylindrical groove are coaxially arranged; the middle part of the ball head (4-2) is provided with threads, the lower part of the ball head (4-2) is inserted into the cylindrical groove, and the middle part of the ball head (4-2) is in threaded connection with the locking nut (4-3); the bottom ends of the limiting columns (4-4) are fixedly connected to the supporting base (4-1) and are rotationally and symmetrically arranged by taking the ball head (4-2) as a center, and the height of the limiting columns (4-4) is smaller than the height of the ball head (4-2) exposed on the supporting base (4-1); the nylon cushion block (4-6) is fixedly connected with the upper end face of the supporting platform (4-5), a ball seat is arranged at the center of the lower end face of the supporting platform (4-5), and the upper part of the ball head (4-2) is arranged in the ball seat and is rotatably connected with the ball seat; when the supporting platform (4-5) is in a horizontal state, gaps are reserved between the lower end face of the supporting platform (4-5) and the upper end faces of the limiting columns (4-4).
3. The type-following positioning tool for welding the side beam of the railway vehicle bogie according to claim 1, wherein the side beam middle positioning mechanism (3) comprises a positioning base (3-1) and a positioning bolt assembly (3-2), the bottom of the positioning base (3-1) is fixedly connected to the middle of the tool platform (2), and the top of the positioning base (3-1) is provided with a secondary circular truncated cone structure (3-1-1) for positioning an air spring seat (1-3) on the side beam (1); one end of a bolt of the positioning bolt assembly (3-2) is fixedly connected with the center of the top of the secondary circular truncated cone structure (3-1-1), the other end of the bolt is connected with a nut, and the length of the bolt is greater than the thickness of the middle part of the side beam (1).
4. The conformal positioning tool for welding the side beam of the railway vehicle bogie according to claim 1, wherein the side beam end pressing mechanism (5) comprises two pressing bolt assemblies (5-1) and a pressing rod (5-2), the two pressing bolt assemblies (5-1) are arranged in parallel, the bottoms of the two pressing bolt assemblies are fixedly connected to two ends of the tool platform (2), and two ends of the pressing rod (5-2) are respectively sleeved on bolt ends of the two pressing bolt assemblies (5-1) and are locked by threaded connection of a nut end and the bolt ends.
5. The type-following positioning tool for welding the side beam of the railway vehicle bogie according to claim 1, wherein the side tightening mechanism (6) is a screw tightening structure consisting of a bolt and a nut.
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CN202122718777.XU CN216227734U (en) | 2021-11-08 | 2021-11-08 | Following type positioning tool for welding side beam of bogie of railway vehicle |
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CN202122718777.XU CN216227734U (en) | 2021-11-08 | 2021-11-08 | Following type positioning tool for welding side beam of bogie of railway vehicle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113878285A (en) * | 2021-11-08 | 2022-01-04 | 中车长春轨道客车股份有限公司 | Following type positioning tool for welding side beam of bogie of railway vehicle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113878285A (en) * | 2021-11-08 | 2022-01-04 | 中车长春轨道客车股份有限公司 | Following type positioning tool for welding side beam of bogie of railway vehicle |
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