A multifunctional device for welding floor of rail transit subway vehicles

Abstract

The invention discloses a multifunctional device for welding floors of rail transit subway vehicles, comprising: a tooling base, an end of the tooling base is provided with an end fixing assembly for positioning the floor in the length direction, two sides of the tooling base are respectively provided with a jacking mechanism and a cylinder clamping device for transversely fixing the floor; two sides of the tooling base are also provided with auxiliary clamping devices for clamping the top of the floor; a jacking mechanism for jacking up the floor is provided at the bottom of the tooling base, a plurality of groups of laser ranging assemblies are longitudinally arranged on the tooling base for realizing real-time online adjustment of pre-deformation of the floor, and the laser ranging assembly is slidably connected to the tooling base; a deflection adjustment limit device, the deflection adjustment limit device is arranged on the tooling base, and is used for limit locking after the deflection adjustment of the floor.

Description

Technical Field

[0001] The invention relates to a multifunctional device for welding floors of rail transit subway vehicles, belonging to the technical field of welding. Background Art

[0002] At present, the welding process equipment for aluminum alloy body chassis floor of rail transit subway vehicles is basically a special tooling for floor structure (length, width, weld distribution, etc.). When a new structure floor (which is quite different from the previous floor structure) comes, for example, the width exceeds the width of the existing process equipment, the weld distribution position does not match the existing process equipment, the cylinder pressure is not easy to identify and the cylinder clamping force is insufficient, and the deflection tracking during floor welding: before, personnel used flat rulers, equal height blocks, and steel rulers to measure, and the measurement required kneeling on the floor to read the value at a horizontal angle. Then there were problems such as non-standard reading, reading deviation, untimely measurement, etc., which led to data loss. At this time, the design and development of "a multifunctional process equipment for welding aluminum alloy floor of rail transit subway vehicles" became particularly important. At the same time, this multifunctional process equipment can share certain production tasks to a certain extent, make full use of existing resources, and avoid some unnecessary waste.

[0003] This multifunctional process equipment mainly meets the company's current 100% aluminum alloy subway structure floor and urban vehicle floor production (can meet the company's floor width of 2346mm-2910mm, thickness of 60mm-80mm), and sets fast switching compensation blocks for the front and back of the edge floor; adds floor deflection monitoring equipment locally; adds random manual pressing functions according to floor welding deformation. This multifunctional process equipment is currently the most complete and advanced process equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing floor welding process equipment, make full use of existing equipment, sites, personnel and other resources, and at the same time disperse the production pressure to avoid the huge production task of one workstation due to the technical conditions of other process equipment not being allowed. A multifunctional device for welding the floor of rail transit subway vehicles is provided.

[0005] A multifunctional device for welding the floor of a rail transit subway vehicle, comprising:

[0006] A tooling base, wherein an end fixing assembly is provided at the end of the tooling base for positioning the floor in the length direction, and a jacking mechanism and a cylinder clamping device are respectively provided on both sides of the tooling base for fixing the floor laterally; an auxiliary clamping device is also provided on both sides of the tooling base for clamping the top of the floor; a jacking mechanism for jacking up the floor is provided at the bottom of the tooling base, and a plurality of groups of laser ranging assemblies are longitudinally arranged on the tooling base for realizing real-time online monitoring of the pre-deformation of the floor, and the laser ranging assembly is slidably connected to the tooling base;

[0007] The deflection adjustment limit device is arranged on the ground and is used for locking the floor after the deflection is adjusted.

[0008] Furthermore, at least four groups of weld beams are provided on the tooling base, and the weld beams are connected to the tooling base through adjusting bolts and linear slide rails. A slider adapted to the linear slide rail is provided at the bottom of the laser ranging assembly.

[0009] Furthermore, the end fixing assembly includes a column, and the column is arranged at the end of the tooling base through an adjustable support plate.

[0010] Furthermore, the tightening mechanism comprises a tightening cylinder, which is arranged on both sides of the tooling base through a bracket, and a multi-link mechanism is transversely arranged at the output end of the tightening cylinder.

[0011] Furthermore, the cylinder clamping device includes a clamping cylinder, a clamping arm, a clamping arm seat, a base and a support platform, the clamping cylinder is fixed at both ends of the base, the output end of the clamping cylinder is connected to the clamping arm, the clamping cylinder is provided with a booster cylinder, the bottom end of the clamping arm is hinged on the support platform through the clamping arm seat, a rotating fixed block is provided on the support platform, and the base is fixed on the mounting base plate.

[0012] Furthermore, the laser ranging assembly includes a support beam, a cross beam, a column and a laser device; the support beam is installed on a tooling base, the cross beam is arranged on the support beam, and the laser device is arranged on the cross beam.

[0013] Furthermore, the deflection adjustment limit device includes a positioning seat, a power cylinder, a deflection adjustment piece, a locking wheel, a deflection support beam, a limit block, and a fixed platform; one end of the power cylinder is connected to the positioning seat, and the other end is connected to the deflection adjustment piece. The bottom of the deflection adjustment piece is hinged to the fixed platform, and an adjustment wheel is provided on the top. After the deflection of the floor is adjusted, the locking wheel acts on the deflection support beam through the locking wheel to achieve locking of the floor after the deflection is adjusted.

[0014] Furthermore, the auxiliary clamping device includes an auxiliary base, which is arranged on the tooling base, and the top is rotatably connected to a rotating swing arm, the rotating swing arm is connected to a clamping screw, and a clamping pad is provided at the bottom of the clamping screw.

[0015] Furthermore, the lifting mechanism comprises a lifting cylinder, a top plate is provided on the top of the lifting cylinder through a connecting piece, a stopper is provided on the top plate, and a ground anchor is provided on the bottom of the lifting cylinder.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the device of the present invention can meet the welding production of type A, type B, narrow type B, narrow type A, type AH, urban vehicles, and riveted vehicle floors through the tooling base, end fixing assembly, left and right clamping mechanisms, laser ranging assembly, left and right cylinder clamping devices, tooling deflection adjustment limit devices, floor lifting mechanism, and auxiliary clamping device, that is, the welding of all 5 floor profile structures at present, which greatly improves the efficiency and also improves the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the tooling of the present invention;

[0018] Figure 2 The tooling base of the present invention;

[0019] Figure 3 The end fixing assembly of the present invention;

[0020] Figure 4 The tightening mechanism of the present invention;

[0021] Figure 5 The laser distance measuring component of the present invention;

[0022] Figure 6 The cylinder pressing device of the present invention;

[0023] Figure 7 It is a partial side view of the cylinder pressing device of the present invention;

[0024] Figure 8 The deflection adjustment device of the present invention;

[0025] Fig. 9 It is a schematic diagram of the jacking mechanism of the present invention;

[0026] Fig.10 It is a schematic diagram of the auxiliary pressing device of the present invention;

[0027] In the figure: 1. tooling base; 2. end fixing assembly; 3. jacking mechanism; 4. laser ranging assembly; 5. cylinder clamping device; 6. deflection adjustment limit device; 7. jacking mechanism; 8. auxiliary clamping device; 10 weld crossbeam; 21. column; 22. adjustment support plate; 31. jacking cylinder; 32. multi-link mechanism; 41. Support beam; 42. Crossbeam; 43. Column; 44. Laser device; 51. Clamping cylinder; 52. Pressing arm; 53. Pressing arm seat; 54. Base; 55. Support platform; 56. Rotating fixed block; 61. Positioning seat; 62. Power cylinder; 63. Deflection adjustment piece; 64. Locking wheel; 65. Deflection support beam; 66. Limit block; 67. Fixed platform; 71. Lifting cylinder; 72. Connecting piece; 73. Top plate; 74. Stopper; 75. Anchor mounting seat; 81. Auxiliary base; 82. Rotating swing arm; 83. Clamping screw; 84. Clamping pad. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1-Figure 9 As shown, a multifunctional device for welding the floor of a rail transit subway vehicle is disclosed, comprising:

[0030] A tooling base 1, wherein an end fixing assembly 2 is provided at the end of the tooling base 1 for positioning the floor in the length direction, and a jacking mechanism 3 and a cylinder clamping device 5 are respectively provided on both sides of the tooling base 1 for fixing the floor horizontally; an auxiliary clamping device 8 is also provided on both sides of the tooling base 1 for clamping the top of the floor; a jacking mechanism 7 for jacking up the floor is provided at the bottom of the tooling base 1, and a plurality of groups of laser distance measuring assemblies 4 are longitudinally arranged on the tooling base 1 for realizing real-time online monitoring of the pre-deformation of the floor, and the laser distance measuring assembly 4 is slidably connected to the tooling base 1;

[0031] The deflection adjustment limiting device 6 is arranged on the tooling base 1 and is used for locking the floor after the deflection is adjusted.

[0032] In this embodiment, at least four groups of weld beams 10 are provided on the tooling base 1, and the weld beams 10 are connected to the tooling base 1 through adjusting bolts and linear slide rails. The laser ranging assembly 4 is connected to the linear slide rail through a slider to facilitate the movement of the laser ranging assembly 4. Further, the tooling base is used to safely and stably support and connect various device mechanisms on the tooling to ensure the excellent operation of the tooling. The tooling base is mainly welded by rectangular square steels of 200×200×5×6000 and 200X150X5X2520, and an 18mm steel plate is laid on the square steel for overall machine processing and leveling; processing holes are added locally to facilitate the positioning of the auxiliary clamping device according to the deformation of the floor.

[0033] In this embodiment, the end fixing assembly 2 includes a column 21, and the column 21 is arranged at the end of the tooling base 1 through an adjustable support plate 22. The specific column 21 adopts 100×100×5×640 square steel. The column 21 is also provided with a pressure head, which is mainly used to correct and check the end direction position positioning of the processed floor sample and adjust the clamping force and the clamping force position to ensure that the floor does not shift or move during the processing process.

[0034] In this embodiment, the tightening mechanism 3 includes a tightening cylinder 31, which is arranged on the side of the tooling base 1 through a bracket, and a multi-link mechanism 32 is laterally arranged at the output end of the tightening cylinder 31, which is used for assembling and positioning 5 floor profiles to ensure that the weld gap meets the welding requirements; at the same time, a rotating fixed block 56 is provided on the support platform 55, and the rotating fixed block 56 is used to cooperate with the tightening mechanism 3 from the side to fix the floor, which is suitable for switching the floor width of narrow B-type and B-type vehicles, is convenient for on-site use and is not easy to lose, and can be fixed on the fixed plate by magnetic adsorption using magnets.

[0035] In this embodiment, the cylinder clamping device 5 includes a clamping cylinder 51, a clamping arm 52, a clamping arm seat 53, a base 54 and a support platform 55. The clamping cylinder 51 is fixed at both ends of the base 54, and the output end of the clamping cylinder 51 is connected to the clamping arm 52. The bottom end of the clamping arm 52 is hinged on the support platform 55 through the clamping arm seat 53. The base 54 is fixed on the mounting base plate 1, and the cylinder drives the mechanical arm to position the floor; this type of cylinder is a booster cylinder, which replaces the previous left and right clamping cylinders, greatly increases the clamping force, and prevents insufficient pressure caused by uneven air bag pressure; at the same time, each set of booster cylinders is installed with a pressure gauge, which is convenient for workers to observe the pressure of the cylinder at that time and the pressure value to be achieved by operation and adjustment.

[0036] In this embodiment, the laser ranging component 4 includes a support beam 41, a cross beam 42, a column 43 and a laser device 44; the support beam 41 is installed on the ground, the cross beam 42 is arranged on the support beam 41, the columns 43 are arranged on the cross beam 42 in turn, and the laser device 44 is arranged on the column 43. The cross beam can be equipped with a guide rail slider to facilitate the position adjustment of the laser device; this component is used to monitor the deformation of the local floor during the welding process, and the laser ranging point can be manually shifted as needed.

[0037] In this embodiment, the deflection adjustment limit device 6 includes a positioning seat 61, a power cylinder 62, a deflection adjustment member 63, a locking wheel 64, a deflection support beam 65 and a limit block 66; one end of the power cylinder 62 is connected to the positioning seat 61, and the other end is connected to the deflection adjustment member 63. The bottom of the deflection adjustment member 63 is hinged to the fixed platform 67, and a locking wheel 64 is provided on the top. The adjustment wheel 64 acts on the floor by adjusting the deflection support beam 65 to achieve floor deflection adjustment. The fixed platform 67 is provided with a limit block 67 that cooperates with the locking wheel 64.

[0038] In this embodiment, the auxiliary clamping device 8 includes an auxiliary base 81, which is arranged on the tooling base 1. The top is rotatably connected to a rotating swing arm 82, and the rotating swing arm 82 is connected to a clamping screw 83. A clamping pad 84 is provided at the bottom of the clamping screw 83, which is used for adjustment when the local floor deformation is large, and is convenient for disassembly and positioning.

[0039] In this embodiment, the lifting mechanism 7 includes a lifting cylinder 71, and a top plate 73 is provided on the top of the lifting cylinder 71 through a connecting piece 72. A stopper 74 is provided on the top plate 73, and a ground anchor mounting seat 75 is provided at the bottom of the lifting cylinder 71. In this solution, the lifting mechanism 7 is used to assist in supporting the welded floor, so as to facilitate on-site operations such as removing the slings.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional device for welding the floor of a rail transit subway vehicle, characterized in that: include: A tool base (1), wherein an end of the tool base (1) is provided with an end fixing assembly (2) for positioning the floor in the length direction, and two sides of the tool base (1) are respectively provided with a jacking mechanism (3) and a cylinder clamping device (5) for fixing the floor in the horizontal direction; two sides of the tool base (1) are also provided with auxiliary clamping devices (8) for clamping the top of the floor; a lifting mechanism (7) for lifting the floor is provided at the bottom of the tool base (1), and a plurality of groups of laser distance measuring assemblies (4) are arranged longitudinally on the tool base (1) for realizing real-time online monitoring of the pre-deformation of the floor, and the laser distance measuring assembly (4) is slidably connected to the tool base (1); A deflection adjustment limit device (6), wherein the deflection adjustment limit device (6) is arranged on the tooling base (1) and is used for limiting and locking the floor after deflection adjustment; The tightening mechanism (3) comprises a tightening cylinder (31), the tightening cylinder (31) being arranged on both sides of the tooling base (1) via a bracket, and a multi-link mechanism (32) being arranged laterally at the output end of the tightening cylinder (31); The cylinder clamping device (5) comprises a clamping cylinder (51), a clamping arm (52), a clamping arm seat (53), a base (54) and a support platform (55); the clamping cylinder (51) is fixedly mounted at both ends of the base (54); the output end of the clamping cylinder (51) is connected to the clamping arm (52); the clamping cylinder (51) is provided with a booster cylinder; the bottom end of the clamping arm (52) is hinged to the support platform (55) via the clamping arm seat (53); a rotating fixed stopper (56) is provided on the support platform (55); and the base (54) is fixedly mounted on the tooling base (1).

2. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: At least four groups of weld crossbeams (10) are provided on the tooling base (1); the weld crossbeams (10) are connected to the tooling base (1) via adjustment bolts and linear slide rails; and a slide block adapted to the linear slide rail is provided at the bottom of the laser distance measuring assembly (4).

3. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: The end fixing assembly (2) comprises a column (21), and the column (21) is arranged at the end of the tooling base (1) through an adjustable support plate (22).

4. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: The laser distance measuring assembly (4) comprises a support beam (41), a cross beam (42), a column (43) and a laser device (44); the support beam (41) is installed on the ground, the cross beam (42) is arranged on the support beam (41), the columns (43) are arranged on the cross beam (42) in sequence, and the laser device (44) is arranged on the column (43).

5. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: The deflection adjustment and limiting device (6) comprises a positioning seat (61), a power cylinder (62), a deflection adjustment member (63), a locking wheel (64), a deflection support beam (65), a limiting block (66), and a fixing platform (67); one end of the power cylinder (62) is connected to the positioning seat (61), and the other end is connected to the deflection adjustment member (63); the bottom of the deflection adjustment member (63) is hinged to the fixing platform (67), and the top is provided with a locking wheel (64); after the deflection of the floor is adjusted, the locking wheel (64) acts on the deflection support beam (65) through the locking wheel (64), so as to achieve locking of the floor after the deflection is adjusted.

6. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: The auxiliary clamping device (8) comprises an auxiliary base (81), the auxiliary base (81) being arranged on the tooling base (1), the top of which is rotatably connected to a rotating swing arm (82), the rotating swing arm (82) being connected to a clamping screw (83), and a clamping pad (84) being arranged at the bottom of the clamping screw (83).

7. The multifunctional device for welding the floor of a rail transit subway vehicle according to claim 1 is characterized in that: The lifting mechanism (7) comprises a lifting cylinder (71), a top plate (73) is provided on the top of the lifting cylinder (71) via a connecting piece (72), a stopper (74) is provided on the top plate (73), and a ground mounting seat (75) is provided on the bottom of the lifting cylinder (71).

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