A railway freight car side column welding and roller beam assembly positioning system

Abstract

The present invention belongs to the technical field of side column welding and roller beam assembly, and discloses a railway freight car side column welding and roller beam assembly positioning system, including side column welding positioning tooling and roller beam assembly tooling. The side column welding positioning tooling includes a workbench for horizontally placing the side column main beam and a positioning plate assembly, a side column main beam clamping assembly, and a side column support seat fixing assembly all installed on the workbench. The positioning plate assembly includes a positioning base installed on the workbench in a mirror-symmetrical manner and a positioning plate rotatably installed on the positioning base. The side column main beam clamping assembly includes a side column main beam support seat, a double-headed stud and a clamping block. The side column support seat fixing assembly includes a leveling fixture assembly arranged in a mirror-symmetrical manner and a fixing fixture arranged in a mirror-symmetrical manner, so as to level and clamp the support seat at the end of the side column main beam. The side column support seat fixing assembly has the advantages of improving assembly accuracy, improving welding efficiency, having an interlocking structure, being suitable for welding two side columns, having high practical value, and being flexible in use.

Description

Technical Field

[0001] The invention belongs to the technical field of side column assembly welding and roller beam assembly, and in particular relates to a side column assembly welding and roller beam assembly positioning system for a railway freight car. Background Art

[0002] When the side column is used to install the front end shaft of the roller beam, the front end shaft seat plates of the roller beam are welded in pairs in the upper and lower intervals in the main beam groove of the side column. When the side column is used to support the rear end of the roller beam, the rear end supporting plates of the roller beam are welded in the upper and lower intervals in the main beam groove of the side column. At present, the welding positioning of the side columns of railway freight cars and the positioning of the roller beam assembly are all manually marked with a marking template, and then the welded parts are manually fixed for preliminary spot welding and full welding. Since the welding position is offset due to component deformation during welding, the position of the welded positioning plate is offset from the designed position, the yield rate is low, the operation is cumbersome, and the overall side column welding efficiency is low, which cannot meet the requirements of product quality and production progress. Summary of the invention

[0003] The present invention aims to provide a railway freight car side column assembly welding and roller beam assembly positioning system, which has accurate positioning and high welding efficiency, and solves the problem of low welding efficiency and low yield rate caused by currently using a marking template to manually mark the welding position, and then manually fixing the welded parts for initial spot welding positioning and then performing full welding.

[0004] To this end, the technical solution adopted by the present invention is: a railway freight car side column welding and roller beam assembly positioning system, including side column welding positioning tooling and roller beam assembly tooling, the side column welding positioning tooling includes a workbench for horizontally placing the side column main beam and a positioning plate assembly, a side column main beam clamping assembly, and a side column support seat fixing assembly all installed on the workbench, the positioning plate assembly includes a positioning base installed on the workbench in mirror symmetry and a positioning plate rotatably installed on the positioning base, when the left and right corresponding positioning plates are both flipped inwards to a horizontal state, they are aligned with the rollers to be welded in the side column main beam groove through the equipped fixing clamps. The front end rotating shaft seat plate of the track beam or the rear end supporting plate of the roller beam is clamped, so as to weld and position the front end rotating shaft seat plate of the roller beam or the rear end supporting plate of the roller beam; the side column main beam clamping assembly includes a side column main beam support seat which is arranged symmetrically on the left and right, a double-headed stud horizontally located at the bottom of the side column main beam, and a clamping block arranged on different rotational threads at both ends of the double-headed stud, and by rotating the handle at one end of the double-headed stud, the clamping blocks are moved toward each other to clamp the outer side wall of the side column main beam; the side column support seat fixing assembly includes a leveling fixture assembly which is arranged symmetrically on the left and right and a fixing fixture which is arranged symmetrically on the left and right, so as to level and clamp the support seat at the end of the side column main beam.

[0005] As a preferred embodiment of the above scheme, the positioning base is provided with a positioning plate placement groove for placing the positioning plate, and the rotation of the positioning plate is achieved by a rotating shaft longitudinally penetrating the positioning base and the positioning plate, and the structural design is reasonable.

[0006] Further preferably, the leveling fixture assembly includes a leveling seat that can resist the support seat and a screw adjustment fixture that fastens the support seat. The workbench is provided with a supporting block corresponding to the support seat. The clamping block at the inner end of the screw of the fixed fixture can resist the corresponding outer sides of the left and right sides of the support seat to ensure that the overall structure is level when the side column is erected, and the structural design is reasonable.

[0007] Further preferably, the side column main beam is an overall "H"-shaped structure, the positioning plate is provided with a notch for avoiding the side column main beam side plate, and the positioning plate is provided with a positioning verification through-hole for a verification rod extending horizontally longitudinally to pass through, so that the overall state of the positioning plates installed at intervals in the front and rear is consistent. When the side column where the rotating end of the raceway beam is installed is welded, the positioning plate used to position the rotating shaft seat plate at the front end of the raceway beam is flipped inward to horizontal, and the remaining positioning plates are opened outward, and then the verification rod is passed through the positioning verification through-hole to uniformly verify the flipping angle of the positioning plates, and the structural design is linked together.

[0008] Further preferably, the front and rear rotating shaft seat plates of the front end of the roller beam are grouped in pairs and are provided with roller beam rotating shaft mounting holes. The positioning plate used to position the front and rear rotating shaft seat plates of the roller beam is provided with concentricity verification holes corresponding to the front and rear of the rotating shaft mounting holes of the left and right side roller beams, and is equipped with concentricity verification plugs, so as to effectively ensure that the hole positions between the two roller beam front end rotating shaft seat plates in the group are concentric, and effectively ensure the smooth installation of the upper and lower ends of the subsequent roller beam rotating shaft;

[0009] The rear end supporting plate of the roller beam is provided with a baffle installation notch for the limit baffle to rotate and snap into. The positioning plate used to position the rear end supporting plate of the roller beam is provided with a verification notch corresponding to the front and rear of the baffle installation notch. The baffle installation notches on the rear end supporting plate of the roller beam are verified to be consistent, thereby ensuring that the subsequent limit block can be normally rotated and snapped into the baffle installation notch after installation. The structural design is ingenious.

[0010] Further preferably, the roller beam assembly tooling includes a roller beam placement platform and a positioning stopper, a rotating sleeve positioning boss, and an "L"-shaped limit seat that are all detachably mounted on the roller beam placement platform; the roller beam placement platform is provided with a roller beam placement pad at a longitudinal interval in the middle for placing the roller beam; the rotating sleeve positioning boss is provided with an arc section that fits with the inner wall of the sleeve at the front end of the roller beam, thereby realizing the positioning of the front end of the roller beam; a positioning stopper is installed directly in front of the rotating sleeve positioning boss, thereby longitudinally limiting the roller beam; the remaining positioning stops are in two asymmetric rows on the left and right, and can be moved to a position corresponding to the roller mounting baffles to be installed on the left and right sides of the roller beam; the "L"-shaped limit seat is arranged longitudinally, and the vertical end fits the outer sides of the positioning stops in the left and right rows, thereby limiting the longitudinal movement of the positioning stops.

[0011] A rotating sleeve positioning boss is used to position the inner wall of the sleeve at the front end of the roller beam, and a positioning stop in the front limits the longitudinal position of the roller beam. The two asymmetric rows of positioning stops limit the roller beam to the left and right while also corresponding to the roller installation baffles to be installed. The design structure is interlocking and the positioning stops are accurately assembled, which significantly improves the body assembly quality and production progress.

[0012] Further preferably, a buffer gasket is provided between the top platform and the bottom supporting legs of the rolling beam placement platform, and the design structure is reasonable.

[0013] Further preferably, the positioning block is an "L"-shaped plate structure as a whole, and a triangular reinforcing rib plate is provided in the center, the positioning block vertical plate is arranged rearwards and fits the installed roller mounting baffle, the positioning block bolt is installed on the roller beam mounting platform, and the vertical plate is arranged rearwards and fits the installed roller mounting baffle, the positioning block is easy to move, and is flexibly applicable to the combination and installation of various types of roller beams and roller mounting baffles, and the structural design is reasonable.

[0014] Beneficial effects of the present invention:

[0015] (1) Compared with the current method of manually marking the welding position with a marking template, and then manually fixing the welded parts for preliminary spot welding and full welding, this scheme adopts a side column assembly welding positioning fixture and a roller beam assembly fixture. When the positioning plate of the side column assembly welding positioning fixture is flipped inward to a horizontal state, a fixing clamp is used to provide positioning for the front end shaft seat plate of the roller beam or the rear end support plate of the roller beam. The roller beam assembly fixture is used to align and position the roller beam, which effectively improves the assembly accuracy, effectively avoids the occurrence of positioning deviation caused by welding deformation, improves the assembly welding efficiency, and makes the structure interlocking.

[0016] (2) When the positioning plate used to position the rotating shaft seat plate at the front end of the roller beam is flipped inward to a horizontal position, and the positioning plate and the rotating shaft seat plate at the front end of the roller beam are clamped together by a fixing clamp, the remaining positioning plates are opened outward, and the side columns welded together are used to install the rotating shaft of the multi-layer roller beam; when the positioning plate used to position the supporting plate at the rear end of the roller beam is flipped inward to a horizontal position, and the positioning plate and the supporting plate at the rear end of the roller beam are clamped together by a fixing clamp, the remaining positioning plates are opened outward, and the side columns welded together are used to support the non-rotating shaft end of the multi-layer roller beam. Therefore, one side column welding and positioning tool can be used to weld two side columns, which has high practical value and is flexible to use.

[0017] In summary, the present invention has the advantages of improving assembly accuracy, improving assembly welding efficiency, having an interlocking structure, being suitable for assembly welding of two side columns, having high practical value, and being flexible in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the side column assembly welding and positioning tooling.

[0019] Figure 2 This is a structural schematic diagram of the side column assembly welding positioning tooling for welding the front end shaft seat plate of the raceway beam on the side column.

[0020] Figure 3 This is a structural schematic diagram of the side column assembly welding positioning tooling for welding the rear end support plate of the raceway beam on the side column.

[0021] Figure 4 A schematic diagram of the local structure of the positioning plate of the rotating shaft seat plate at the front end of the positioning raceway beam being flipped inward and clamped.

[0022] Figure 5 A schematic diagram of the local structure of the positioning plate for positioning the rear end support plate of the raceway beam, which is flipped inward and clamped.

[0023] Figure 6 It is a structural schematic diagram of the roller beam assembly tooling.

[0024] Figure 7 Schematic diagram of the roller beam assembly tooling structure for installing the roller beam. DETAILED DESCRIPTION

[0025] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0026] Combination Figure 1 — Figure 7 As shown, a railway freight car side column welding and roller beam assembly positioning system is composed of a side column welding positioning tool and a roller beam assembly tool.

[0027] The side column assembly welding positioning tool consists of a workbench 1 for horizontally placing the side column main beam 5 and a positioning plate assembly 2, a side column main beam clamping assembly 3, and a side column support seat fixing assembly 4 all installed on the workbench 1.

[0028] The workbench 1 is provided with a supporting block 11 corresponding to the supporting seat 52 .

[0029] The positioning plate assembly 2 is composed of a positioning base 21 which is installed on the workbench 1 in a mirror-symmetrical manner and a positioning plate 22 which is rotatably installed on the positioning base 21 .

[0030] The positioning base 21 is provided with a positioning plate seating groove for seating the positioning plate 22 , and the positioning plate 22 can be rotated by a rotating shaft 211 that longitudinally penetrates the positioning base 21 and the positioning plate 22 .

[0031] The positioning plate 22 is provided with a notch 221 for avoiding the side plate of the side column main beam 5.

[0032] The positioning plate 22 is provided with a positioning check through hole 222 for a check rod extending longitudinally and horizontally to pass through, so that the overall state of the positioning plates 22 installed at intervals in the front and rear is consistent.

[0033] When the corresponding positioning plates 22 on the left and right are flipped inward to a horizontal state, they are clamped to the front end shaft seat plate 51a of the rolling beam or the rear end support plate 51b of the rolling beam to be welded in the groove of the side column main beam 5 by the equipped fixing clamps 23, so as to weld and position the front end shaft seat plate 51a of the rolling beam or the rear end support plate 51b of the rolling beam.

[0034] The front and rear rotating shaft seat plates 51a of the roller beam are grouped in pairs and are provided with roller beam rotating shaft mounting holes. The positioning plate 22 used to position the front and rear rotating shaft seat plates 51a of the roller beam is provided with concentricity verification holes 223 corresponding to the front and rear of the left and right side roller beam rotating shaft mounting holes, and is equipped with concentricity verification pins 224.

[0035] The rear end support plate 51b of the roller beam is provided with a baffle placement notch for the limit baffle to rotate and snap into, and the positioning plate 22 used to position the rear end support plate 51b of the roller beam is provided with a verification notch 225 corresponding to the front and rear of the baffle placement notch.

[0036] The side column main beam clamping assembly 3 consists of a side column main beam support seat 31 that is arranged in a mirror-symmetrical manner on the left and right, a double-headed stud 32 horizontally located at the bottom of the side column main beam 5, and a clamping block 33 arranged on different rotational threads at both ends of the double-headed stud 32.

[0037] By rotating the handle at one end of the stud 32 , the clamping blocks 33 are moved toward each other to clamp the outer side wall of the side column main beam 5 .

[0038] The side column support seat fixing assembly 4 is composed of a leveling fixture assembly 41 that is symmetrically arranged on the left and right and a fixing fixture 42 that is mirror-symmetrically arranged on the left and right, so as to level and clamp the support seat 52 at the end of the side column main beam 5.

[0039] The leveling fixture assembly 41 is composed of a leveling seat 411 that can resist the support seat 52 and a screw rod adjustment fixture 412 that fastens the support seat 52 .

[0040] The clamping block at the inner end of the screw rod of the fixing fixture 42 can press against the corresponding outer sides of the supporting seat 52 .

[0041] The side column main beam 5 is an "H"-shaped structure as a whole.

[0042] The positioning plate 22 used to position the rotating shaft seat plate 51a at the front end of the roller beam is flipped inward to be horizontal, and the other positioning plates 22 are opened outward. Then, the verification rod is inserted into the positioning verification perforation 222 to verify the positioning plate, and then the concentricity verification pin 224 is inserted into the concentricity verification hole 223 and the corresponding roller beam rotating shaft installation hole to perform concentricity verification. Finally, the positioning plate 22 and the rotating shaft seat plate 51a at the front end of the roller beam are clamped together by the fixing clamp 23, and finally, the rotating shaft seat plate 51a at the front end of the roller beam is directly welded. The side columns welded in this way are used to install the rotating shafts of the multi-layer roller beams.

[0043] The positioning plate 22 used for positioning the rear end support plate 51b of the roller beam is flipped inward to be horizontal, and the other positioning plates are opened outward. Then, the verification rod is inserted into the positioning verification perforation 222 to verify the positioning plate. Then, the verification notch 225 is manually checked to see if it is aligned with the baffle placement notch to verify the position of the rear end support plate 51b of the roller beam. The positioning plate 22 and the rear end support plate 51b of the roller beam are clamped together by a fixing clamp. Finally, the rear end support plate 51b of the roller beam is directly welded. The side column welded in this way is used to support the non-rotating shaft end of the multi-layer roller beam.

[0044] When the positioning plate used to position the rear end support plate of the roller beam is flipped inward to be horizontal, and the positioning plate and the rear end support plate of the roller beam are clamped together by fixing clamps, the remaining positioning plates are opened outward, and the welded side columns are used to support the non-rotating shaft ends of the multi-layer roller beams.

[0045] The roller beam assembly tooling consists of a roller beam placement platform d1 and a positioning stopper d2, a rotating sleeve positioning boss d3, and an "L"-shaped limit seat d4, which are all detachably mounted on the roller beam placement platform d1.

[0046] A roller beam placement pad d11 is provided at the center of the roller beam placement platform d1 at a longitudinal interval for placing the roller beam 6 .

[0047] A buffer pad d12 is provided between the top platform and the bottom supporting leg of the rolling beam placement platform d1.

[0048] The positioning stopper d2 bolts are installed on the roller beam mounting platform d1, and the vertical plate is arranged backward and fits the installed roller mounting stopper 62.

[0049] The positioning stopper d2 is an "L"-shaped plate structure as a whole, and a triangular reinforcing rib plate d21 is provided in the center.

[0050] The rotating sleeve positioning boss d3 is provided with an arc segment d31 which fits with the inner wall of the sleeve 61 at the front end of the raceway beam 6, so as to realize the positioning of the front end of the raceway beam 6.

[0051] A positioning stopper d2 is installed directly in front of the rotating sleeve positioning boss d3, thereby limiting the raceway beam 6 in the longitudinal direction.

[0052] The remaining positioning stops d2 are arranged in two asymmetrical rows, and can be moved to positions corresponding to the roller installation stoppers 62 to be installed on the left and right sides of the raceway beam 6 .

[0053] The "L"-shaped limiting seat d4 is arranged longitudinally, and the vertical end is in contact with the outer side of the positioning block d2 in the left and right rows, thereby limiting the longitudinal movement of the positioning block d2.

Claims

1. A railway freight car side column welding and roller beam assembly positioning system, characterized in that: It includes a side column assembly welding positioning tool and a roller beam assembly tool. The side column assembly welding positioning tool includes a workbench for horizontally placing the side column main beam and a positioning plate assembly, a side column main beam clamping assembly, and a side column support seat fixing assembly all installed on the workbench. The positioning plate assembly includes a positioning base installed on the workbench in a mirror-symmetrical manner on the left and right sides and a positioning plate rotatably installed on the positioning base. When the left and right corresponding positioning plates are both flipped inward to a horizontal state, they are clamped with the front end shaft seat plate of the roller beam to be welded in the side column main beam groove or the rear end support plate of the roller beam through the equipped fixing clamps. , so as to weld and position the rotating shaft seat plate at the front end of the roller beam or the supporting plate at the rear end of the roller beam; the side column main beam clamping assembly includes a side column main beam support seat arranged symmetrically on the left and right, a double-headed stud horizontally located at the bottom of the side column main beam, and a clamping block arranged on different rotational threads at both ends of the double-headed stud, and by rotating the handle at one end of the double-headed stud, the clamping blocks move toward each other to clamp the outer side wall of the side column main beam; the side column support seat fixing assembly includes a leveling fixture assembly arranged symmetrically on the left and right and a fixing fixture arranged symmetrically on the left and right, so as to level and clamp the support seat at the end of the side column main beam; The front and rear rotating shaft seat plates of the roller beam are grouped in pairs and are provided with roller beam rotating shaft mounting holes. The positioning plate used to position the front and rear rotating shaft seat plates of the roller beam is provided with concentric verification holes corresponding to the front and rear of the rotating shaft mounting holes of the left and right side roller beams, and is equipped with concentricity verification plugs. The rear end support plate of the roller beam is provided with a baffle placement notch for the limit baffle to rotate and snap into. The positioning plate used to position the rear end support plate of the roller beam is provided with verification notches corresponding to the front and rear of the baffle placement notch. The leveling fixture assembly includes a leveling seat that can abut against the support seat and a screw rod adjustment fixture that fastens the support seat. The workbench is provided with a supporting block corresponding to the support seat, and the clamping block at the inner end of the screw rod of the fixing fixture can abut against the corresponding outer sides of the left and right sides of the support seat. The side column main beam is an "H"-shaped structure as a whole. The positioning plate is provided with a notch to avoid the side column main beam side plate. The positioning plate is provided with a positioning verification through-hole for a verification rod extending horizontally longitudinally to pass through, so that the overall state of the positioning plates installed at intervals in the front and rear is consistent.

2. A railway freight car side column assembly welding and roller beam assembly positioning system according to claim 1, characterized in that: The positioning base is provided with a positioning plate placement groove for the positioning plate to be placed, and the rotation of the positioning plate is achieved through a rotating shaft that vertically penetrates the positioning base and the positioning plate.

3. The railway freight car side column welding and roller beam assembly positioning system according to claim 1, characterized in that: The roller beam assembly tooling includes a roller beam placement platform and a positioning stopper, a rotating sleeve positioning boss, and an "L"-shaped limit seat that are all detachably mounted on the roller beam placement platform. The roller beam placement platform is provided with a roller beam placement pad at a longitudinal interval in the center for placing the roller beam. The rotating sleeve positioning boss is provided with an arc section that fits with the inner wall of the sleeve at the front end of the roller beam, thereby realizing the positioning of the front end of the roller beam. A positioning stopper is installed directly in front of the rotating sleeve positioning boss to longitudinally limit the roller beam. The remaining positioning stops are in two asymmetrical rows on the left and right, and can be moved to a position corresponding to the roller installation baffles to be installed on the left and right sides of the roller beam. The "L"-shaped limit seat is arranged longitudinally, and the vertical end fits the outer side of the positioning stops in the left and right rows, thereby limiting the longitudinal movement of the positioning stops.

4. A railway freight car side column assembly welding and roller beam assembly positioning system according to claim 1, characterized in that: A buffer pad is provided between the top platform and the bottom supporting legs of the rolling beam placement platform.

5. The railway freight car side column welding and roller beam assembly positioning system according to claim 3, characterized in that: The positioning block is an "L"-shaped plate structure as a whole, and a triangular reinforcing rib plate is provided in the center. The positioning block bolt is installed on the roller beam mounting platform, and the vertical plate is arranged backward and fits the installed roller mounting baffle.

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