Railway passenger car side beam welding tool capable of presetting reversible deformation

Abstract

The utility model discloses a presettable reversible deformation railway passenger car side beam welding tool which comprises a tool body with a base extending in the length direction of a side beam. The pressing devices are arranged at the two ends of the base and used for pressing the side beam cap tube from the upper portion, and the supporting body and the tool positioning column are sequentially arranged on a supporting path formed from the center of the base to the pressing devices, and the height of the supporting body and the height of the tool positioning column can be adjusted. The top end of the supporting body makes contact with lower cover plates of the side beams. The tool positioning columns are connected with the base in a removable mode, the tool positioning columns at the two ends of the base are equal in height, a virtual plane is formed at the top ends of the tool positioning columns, in the working state, the virtual plane is used for leveling the supporting bodies, when the supporting bodies make contact with the virtual plane, the top end faces of the multiple supporting bodies on the base are coplanar, and therefore after the tool positioning columns are removed, the tool positioning columns can be adjusted. The multiple supporting bodies provide the same supporting force in the reversible deformation applying process, and then by means of height supporting of the supporting bodies, shrinkage of welding deformation is counteracted through manual prefabrication before the side beam rotating arm positioning base is welded.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a welding jig for the side beam of a rail passenger car capable of pre-setting anti-deformation. Background Art

[0002] At present, during the manufacturing process of the side beam of the urban rail Type A vehicle, after the welding of the swivel positioning seat in the side beam assembly welding process is completed, the welding deformation causes the change of the dimension of the side beam end in the Z-axis direction (that is, when welding the swivel positioning seat, the height difference in the Z-axis direction between the lower surface of the cap cylinder of the side beam and the lower surface of the lower cover plate of the side beam will become smaller due to welding deformation), and the side beam needs to be cold-adjusted and repaired by a press. This not only requires setting up an adjustment and repair process, increasing the labor of personnel, the consumption of auxiliary materials and the cost of the press cold-adjustment and repair equipment, but also increases the manufacturing cycle of the side beam and synchronously extends the overall manufacturing cycle of the frame. There are problems such as waste of labor cost, material cost, transportation cost and long manufacturing cycle;

[0003] Therefore, based on the above problems, how to provide a jig that can pre-set anti-deformation during the side beam welding process has become an important technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects existing in the prior art and provide a welding jig for the side beam of a rail passenger car capable of pre-setting anti-deformation, so as to cancel the post-welding cold-adjustment and repair process.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A welding jig for the side beam of a rail passenger car capable of pre-setting anti-deformation disclosed by the utility model comprises:

[0007] A jig main body having a base extending along the length direction of the side beam, a pressing device installed at both ends of the base for pressing the cap cylinder of the side beam from above, and a support body with adjustable height and a jig positioning column sequentially arranged on the support path formed from the center of the base towards the pressing device;

[0008] The top end of the support body contacts the lower cover plate of the side beam;

[0009] The jig positioning column is connected to the base in a removable form, and the jig positioning columns at both ends of the base are of the same height and form a virtual plane at the top end;

[0010] In the working state, the virtual plane is used to level the support body. When the support body contacts the virtual plane, the top end faces of multiple support bodies on the base are coplanar, so that after removing the tooling positioning posts, multiple support bodies provide the same supporting force during the application of reverse deformation, and then use the height support of the support bodies to offset the shrinkage of welding deformation during the manual prefabrication before the welding of the side beam swing arm positioning seat.

[0011] Further, it also includes an aluminum straightedge with a length not less than the distance between two tooling positioning posts. The virtual plane is the lower surface of the aluminum straightedge, so that the aluminum straightedge is lapped on two tooling positioning posts, and the support body contacts the lower surface of the aluminum straightedge to level the support body.

[0012] Further, the middle part of the aluminum straightedge has a substrate part, and the projected area of the substrate part on the horizontal plane can cover the projected area of the support body on the horizontal plane.

[0013] Further, the support body includes a support base;

[0014] Threaded holes are opened on both sides of the top end of the support base, and a top rod for contacting the lower cover plate is threadedly connected to the threaded holes;

[0015] A positioning member is threadedly connected to the threaded section of the top rod, and the positioning member can abut against the top surface of the support base.

[0016] Further, the tooling positioning post includes a column body, and a threaded hole is opened at the top end of the column body, and a top rod is threadedly connected to the threaded hole;

[0017] A positioning member is threadedly connected to the threaded section of the top rod, and the positioning member can abut against the top surface of the column body.

[0018] Further, the bottom ends of the support body and the tooling positioning post are fixedly connected to the upper surface of the base in a removable form through magnets.

[0019] Further, the tooling main body also includes a guide post positioning post fixedly connected to the center position of the upper surface of the base and a quick-change disk fixedly connected to the lower surface of the base. The support body and the tooling positioning post are symmetrically distributed with the guide post positioning post as the center.

[0020] Further, the guide post positioning post is located below the guide post of the side beam, and the support body is arranged between the guide post and the swing arm positioning seat of the side beam on the base.

[0021] Further, the pressing device includes two stud bolts and a pressure bar connecting the two stud bolts. Nuts are threadedly connected above the pressure bar to the stud bolts, and the bottom ends of the stud bolts are fixedly connected to the platform fixedly connected to the upper surface of the end of the base.

[0022] Further, the platform has a platform with an area larger than the width of the base.

[0023] In the above technical solution, a welding tooling for the side beam of a railway passenger car with pre - set anti - deformation provided by the present utility model has the following beneficial effects:

[0024] The welding tooling for the side beam of a railway passenger car with pre - set anti - deformation designed by the present utility model is arranged with support bodies, tooling positioning columns and pressing devices in sequence in a symmetric form on the base of the tooling main body. The top of the support body contacts the lower cover plate of the side beam. The tooling positioning columns are connected to the base in a removable form. After the tooling positioning columns at both ends of the base are of the same height and form a virtual plane at the top, they are used to level the support bodies. When the support bodies contact the virtual plane, the end faces of the tops of multiple support bodies are coplanar. Thus, after removing the tooling positioning columns, multiple support bodies provide the same supporting force during the application of anti - deformation. Furthermore, by using the height support of the support bodies, artificial pre - setting is carried out before the welding of the side beam swivel positioning seat to offset the shrinkage of welding deformation. The welding tooling for the side beam of a railway passenger car with pre - set anti - deformation has the following beneficial effects compared with the existing technology:

[0025] 1) It can pre - set anti - deformation, realizing the cancellation of subsequent cold adjustment and repair processes, reducing the manufacturing cost of the frame and shortening the manufacturing cycle.

[0026] 2) It has good versatility. The heights of the support bodies and tooling positioning columns on the tooling main body are adjustable, enabling the size of the pre - set anti - deformation to be adjustable, and being applicable to different projects with different size requirements.

[0027] 3) It has high compatibility. The support bodies and tooling positioning columns on the tooling main body can be removed at any time by using a strong magnet connection method and can be used in cooperation with other general welding toolings at the production site. Secondly, because it can be removed, it can meet the welding of the side beam in both positive and reverse installations, thus better meeting the best welding angles of certain components in certain projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0029] Figure 1 is a schematic diagram of the use state of a welding tooling for the side beam of a railway passenger car with pre - set anti - deformation disclosed by the present utility model;

[0030] Figure 2 is a schematic diagram of the overall structure of a welding tooling for the side beam of a railway passenger car with pre - set anti - deformation disclosed by the present utility model;

[0031] Figure 3 It is a schematic structural diagram of a support body of a welding tool for the side beam of a railway passenger car with pre - set anti - deformation disclosed by the present utility model;

[0032] Figure 4 It is a schematic structural diagram of a positioning column of a welding tool for the side beam of a railway passenger car with pre - set anti - deformation disclosed by the present utility model.

[0033] Explanation of reference numerals in the drawings:

[0034] Reference numerals of workpieces in the prior art:

[0035] 1. Side beam; 101. Cap cylinder; 102. Rotary arm positioning seat; 103. Guide post; 104. Lower cover plate of side beam

[0036] Reference numerals of the welding tool of the present utility model:

[0037] 2. Tooling body; 201. Quick - change disk; 202. Guide post positioning column; 203. Base; 204. Aluminum flat ruler; 205. Nut; 206. Pressing bar; 207. Stud

[0038] 3. Support body; 301. Jack rod; 302. Positioning piece; 303. Support base; 304. Magnet

[0039] 4. Tooling positioning column; 401. Column body; 402. Magnet; 403. Jack rod; 404. Positioning piece Detailed implementation mode

[0040] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below with reference to the drawings.

[0041] See Figure 1 , 2 shown;

[0042] A welding tool for the side beam of a railway passenger car with pre - set anti - deformation of the utility model includes: a tooling body 2, a pressing device, a support body 3, and a tooling positioning column 4;

[0043] The tooling body 2 has a base 203 extending along the length direction of the side beam 1, and the pressing device is installed at both ends of the base 203 to press the cap cylinder 101 of the side beam 1 from above;

[0044] A support path is formed from the center of the base 203 towards the pressing device direction, and a support body 3 and a tooling positioning column 4 with adjustable heights are sequentially arranged on the support path. Specifically, the support body 3 and the tooling positioning column 4 are symmetrically arranged on both sides of the base 203. The number of support bodies 3 can be multiple according to actual use requirements. In this embodiment, only two are taken as an example;

[0045] The top end of the support 3 contacts the lower cover plate 104 of the side beam 1;

[0046] The tooling positioning posts 4 are connected to the base 203 in a removable form, and the tooling positioning posts 4 at both ends of the base 203 are of the same height and form a virtual plane at the top ends;

[0047] In the working state, the virtual plane is used to level the support 3. When the support 3 contacts the virtual plane, the tooling positioning posts 4 and the support 3 are of the same height, so that the top end faces of multiple supports 3 on the base 203 are coplanar. Thus, after removing the tooling positioning posts 4, multiple supports 3 provide the same supporting force during the application of reverse deformation. Furthermore, this welding tooling uses the height support of the support 3 to prefabricate manually before welding the swivel positioning seat 102 of the side beam 1 to offset the shrinkage of welding deformation;

[0048] This welding tooling uses the support 3 in cooperation with the tooling positioning posts 4 not only to pre-set reverse deformation and cancel the subsequent cold adjustment and repair process of the side beam, but also, the heights of the support 3 and the tooling positioning posts 4 are adjustable, meeting the general requirements, enabling the size of the pre-set reverse deformation to be adjustable, so it can be applied to different projects with different size requirements.

[0049] See Figure 2 as shown in:

[0050] Preferably, this welding tooling further includes an aluminum straightedge 204. The length of the aluminum straightedge 204 is not less than the distance between two tooling positioning posts 4. The virtual plane is the lower surface of the aluminum straightedge 204. Thus, the aluminum straightedge 204 is lapped on two tooling positioning posts 4 so that the support 3 contacts the lower surface of the aluminum straightedge 204 to level the support 3.

[0051] During use, the aluminum straightedge 204 is lapped on two tooling positioning posts 4. At this time, the height of the tooling positioning posts 4 is the height of the pre-set reverse deformation, that is, the height is greater than the distance between the lower surface of the cap cylinder 101 of the side beam 1 and the lower surface of the lower cover plate 104 of the side beam 1. Then, the aluminum straightedge 204 is used to check whether the tooling positioning posts 4 and the top ends of the support 3 are horizontal and consistent. After leveling the support 3 so that the support 3 and the tooling positioning posts 4 are at the same height, the prefabricated support height of the support 3 is completed at this time.

[0052] Among them, the middle part of the aluminum straightedge 204 has a substrate part. The projected area of the substrate part on the horizontal plane can cover the projected area of the support 3 on the horizontal plane. That is to say, the aluminum straightedge 204 widens its width through the substrate part to ensure that the lower surface of the aluminum straightedge 204 contacts the top ends of four ejector rods 301 installed at the top ends of two supports 3, so that all the ejector rods 301 of the supports 3 on the base 203 are in the same plane.

[0053] See Figure 3 as shown in:

[0054] Preferably, the support body 3 includes a support base 303. Threaded holes are formed on both sides of the top end of the support base 303. Two threaded rods 301 are threadedly connected to the two threaded holes respectively. One support body 3 is in two-point contact with the lower cover plate 104 of the side beam 1 through the two threaded rods 301. The threaded rods 301 and 403 are hexagon head screws or rod bodies with external threads in the prior art. The top end of the rod body contacts the lower cover plate 104 through a support block;

[0055] A positioning member 302 is threadedly connected to the threaded section of the threaded rod 301. The positioning member 302 can abut against the top surface of the support base 303. By abutting the positioning member 302 against the top surface of the support body 3, the height of the threaded rod 301 is locked to ensure accurate positioning. The positioning members 302 and 404 can be nuts or positioning blocks with other structures having threaded holes in the prior art;

[0056] See Figure 4 as shown in:

[0057] The tooling positioning column 4 has basically the same structure as the support body 3. The difference is that the tooling positioning column 4 includes a column body 401. A threaded hole is formed at the top end of the column body 401, and a threaded rod 403 is threadedly connected to the threaded hole;

[0058] A positioning member 404 is threadedly connected to the threaded section of the threaded rod 403. The positioning member 404 can abut against the top surface of the column body 401. By abutting the positioning member 404 against the top surface of the main body 401, the height of the threaded rod 403 is locked to ensure accurate positioning;

[0059] See Figure 3 and 4 as shown in:

[0060] Preferably, the bottom ends of the support body 3 and the tooling positioning column 4 are fixedly connected to the upper surface of the base 203 in a removable form through magnets.

[0061] Specifically, the column body 401 of the tooling positioning column 4 is in a cylindrical structure. The bottom end of the column body 401 is fixedly connected to the base 203 through a magnet 402. The support base 303 of the support body 3 is in a cuboid structure. The bottom end of the support base 303 is fixedly connected to the base 203 through a magnet 304, which is convenient for disassembly and assembly;

[0062] For this welding tooling, the support body 3 and the tooling positioning column 4 are connected to the base 203 by a strong magnet connection method, which can be removed at any time, ensuring the compatibility of this welding tooling. It can be used in cooperation with other general welding toolings at the production site. And because it can be removed, it meets the requirements of welding the side beam 1 in both forward and reverse directions, thus better meeting the best welding angle of a certain component in some projects.

[0063] See Figure 2 as shown in:

[0064] Preferably, the tooling main body 2 further includes a guide post positioning post 202 fixedly connected to the center position of the upper surface of the base 203. The support body 3 and the tooling positioning post 4 are symmetrically distributed around the guide post positioning post 202. Preferably, during prefabricated reverse deformation, the guide post positioning post 202 is located below the guide post 103 of the side beam 1, and the support body 3 is arranged between the guide post 103 and the swivel positioning seat 102 of the side beam 1 on the base 203;

[0065] A quick-change disk 201 is fixedly connected to the lower surface of the base 203, and the quick-change disk 201 can be fixedly connected to an external welding device.

[0066] See Figure 2 as shown in

[0067] Preferably, the pressing device includes two stud bolts 207 and a pressure bar 206 connecting the two stud bolts 207. Through holes through which the stud bolts 207 can pass are provided at both ends of the pressure bar 206. Nuts 205 are threadedly connected above the pressure bar 206 where the stud bolts 207 are located. The bottom ends of the stud bolts 207 are fixedly connected to a platform fixedly connected to the upper surface of the end of the base 203. The platform has an area larger than the width of the base 203, and the stud bolts 207 can penetrate the platform and be detachably fixedly connected to the platform through nuts.

[0068] In the above technical solution, for a welding tooling for the side beam of a railway passenger car capable of pre-setting reverse deformation provided by the present utility model, the usage method is as follows:

[0069] First, connect the positioning post 401 to the base 203 of the tooling main body 2 through a magnet 402, and connect the support base 303 to the base 203 of the tooling main body 2 through a magnet 304. The two tooling positioning posts 4 and the two support bodies 3 are symmetrically distributed around the guide post positioning post 202 (as Figure 2 shown);

[0070] Adjust the height of the two tooling positioning posts 4 so that the height in the Z-axis direction is greater than the distance between the lower surface of the cap cylinder 101 and the lower surface of the lower cover plate 104 of the side beam 1. Then, use an aluminum straightedge 204 to check whether the tops of the tooling positioning posts 4 and the support bodies 3 are at the same level. After leveling the support body 3 so that the support body 3 and the tooling positioning post 4 are at the same height, the prefabricated support height of the support body 3 is completed at this time;

[0071] Lock the positioning member 302 to fix the height of the ejector rod 301. Remove the tooling positioning post 4 and the aluminum straightedge 204, place the side beam 1 above the base 203 of the tooling main body 2, and press the end of the cap cylinder 101 through the nut 205, the pressure bar 206 and the stud bolt 207 (as Figure 1 shown). After welding the swivel positioning seat 102, the side beam 1 cools with the tooling, and the welding deformation is controlled.

[0072] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A rail passenger car side beam welding tool capable of preset reverse deformation, characterized in that: include: A tooling body (2) having a base (203) extending along the length direction of the side beam (1), a clamping device installed at both ends of the base (203) for clamping the cap barrel (101) of the side beam (1) from above, and a support body (3) and a tooling positioning column (4) with adjustable height arranged in sequence on a support path formed from the center of the base (203) toward the clamping device; The top end of the support body (3) is in contact with the lower cover plate (104) of the side beam (1); The tooling positioning column (4) is connected to the base (203) in a removable manner, and the tooling positioning columns (4) at both ends of the base (203) are of the same height and form a virtual plane at the top; In the working state, the virtual plane is used to level the support body (3). When the support body (3) contacts the virtual plane, the top end faces of the multiple support bodies (3) on the base (203) are made coplanar, so that after the tooling positioning column (4) is removed, the multiple support bodies (3) provide the same supporting force when applying reverse deformation, and then utilize the height support of the support body (3) to artificially prefabricate the side beam (1) swing arm positioning seat (102) before welding to offset the shrinkage of welding deformation.

2. A rail passenger car side beam welding tool capable of preset reverse deformation according to claim 1, characterized in that ； It also includes an aluminum ruler (204) whose length is not less than the distance between the two tooling positioning columns (4), and the virtual plane is the lower surface of the aluminum ruler (204), so that the aluminum ruler (204) is overlapped on the two tooling positioning columns (4) so ​​that the support body (3) is in contact with the lower surface of the aluminum ruler (204), so as to level the support body (3).

3. A rail passenger car side beam welding tool capable of preset reverse deformation according to claim 2, characterized in that ； The aluminum ruler (204) has a base plate portion in the middle, and the projection area of ​​the base plate portion on the horizontal plane can cover the projection area of ​​the support body (3) on the horizontal plane.

4. A welding tool for railway passenger car side beams capable of preset reverse deformation according to claim 1 or 2, It is characterized by: The support body (3) comprises a support base (303); Threaded holes are provided on both sides of the top of the support base (303), and the threaded holes are threadedly connected with a push rod for contacting the lower cover plate (104); The threaded section of the push rod is threadedly connected with a positioning piece, and the positioning piece can abut against the top surface of the support base.

5. A rail passenger car side beam welding tool capable of preset reverse deformation according to claim 1 or 2, characterized in that; The tool positioning column (4) comprises a column body (401), a threaded hole is formed at the top of the column body (401), and a push rod is threadedly connected to the threaded hole; The threaded section of the push rod is threadedly connected with a positioning piece, and the positioning piece can abut against the top surface of the column (401).

6. A rail passenger car side beam welding tool capable of preset reverse deformation according to claim 1, It is characterized by: The support body (3) and the bottom end of the tool positioning column (4) are fixedly connected to the upper surface of the base (203) via magnets in a removable manner.

7. The welding tool for railway passenger car side beam capable of preset reverse deformation according to claim 1, characterized in that ； The tooling body (2) further comprises a guide post positioning column (202) fixedly connected to the center position of the upper surface of the base (203) and a quick-change plate (201) fixedly connected to the lower surface of the base (203); the support body (3) and the tooling positioning column (4) are symmetrically distributed with the guide post positioning column (202) as the center.

8. The welding tool for railway passenger car side beam capable of preset reverse deformation according to claim 7, characterized in that ； The guide post positioning post (202) is located below the guide post (103) of the side beam (1), and the base (203) is located between the guide post (103) and the rotating arm positioning seat (102) of the side beam (1), and the support body (3) is arranged.

9. A rail vehicle side beam welding tool capable of preset reverse deformation according to claim 1 or 7, characterized in that ； The clamping device comprises two studs (207) and a pressure bar (206) connecting the two studs (207); the studs (207) are located above the pressure bar (206) and are threadedly connected to a nut (205); the bottom end of the studs (207) is fixedly connected to a platform fixedly connected to the upper surface of the end of the base (203).

10. A rail vehicle side beam welding tool capable of preset reverse deformation according to claim 9, characterized in that ； The platform has a platform area greater than the width of the base (203).

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