Welding device suitable for machining large steel plate framework of railway vehicle

Abstract

The utility model discloses a welding device suitable for machining a large steel plate framework of a railway vehicle, and particularly relates to the field of railway vehicle machining, the welding device comprises a machining frame and a welder, a movable plate is arranged in the machining frame, two hydraulic cylinders are fixedly installed at the top of the machining frame, and the output ends of the two hydraulic cylinders are fixedly connected with the movable plate; the welding device is located at the top of the machining frame and located in a gap between the two hydraulic cylinders, the welding device is connected with a welding gun, the welding gun is located in the machining frame and located at the bottom of the moving plate, and extrusion assemblies are arranged on the two sides of the welding gun. The extrusion assembly comprises a U-shaped frame. The U-shaped frame is matched with the pulley, so that the top of the steel plate can be extruded in the moving process of the steel plate, the stability of the steel plate can be improved, and the welding accuracy of the steel plate can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of railway vehicle processing, and more specifically, to a welding device suitable for processing a large steel plate frame of a railway vehicle. Background Art

[0002] Railway vehicles are vehicles used by the railway transport sector to transport passengers and goods. Railway vehicles are divided into two categories: passenger cars and freight cars. Railway vehicles are generally composed of five major parts: car body, running part, braking device, coupler buffer device and vehicle internal equipment. The performance parameters of railway vehicles are: dead weight, load, volume, capacity, dead weight coefficient, specific volume coefficient, structural speed, axle weight, load per linear meter of track. The main dimensions of the vehicle are: vehicle length, vehicle spacing, body length, width and height, maximum width and maximum height of the vehicle, height of the center line of the coupler from the rail surface, and floor surface height. The body is mainly welded from large steel plate frames. It is the core loading structure of the entire vehicle and an important component of the vehicle. The load-bearing strength of the body directly affects the safety performance of the vehicle.

[0003] At present, in the process of welding large steel plate frames, two steel plates are first hoisted on the welding platform, and then the positions of the two steel plates to be welded are aligned, and then welding is completed. However, in the process of welding steel plates, because the position of the welder is usually fixed and the steel plates are large in size, the steel plates need to be continuously moved to change the welding position. This process is time-consuming, and because the welding position is relatively uneven, it is easy to cause the welding point to be misaligned when moving, affecting the production efficiency of the steel plate. In order to avoid this phenomenon, symmetrical limiting components are usually installed on the welding platform. By adjusting the distance between the two limiting components, the two steel plates are limited so that the two steel plates are in a parallel state.

[0004] However, in actual use, due to the uneven cross-section of the welding points of some steel plates, when the raised parts of two steel plates come into contact, it is easy to cause the welding point of one of the steel plates to lift up, resulting in misalignment, thus affecting the welding accuracy of the steel plates. Utility Model Content

[0005] The utility model provides a welding device suitable for processing large steel plate frames of railway vehicles, and aims to solve the problem that when the raised parts of two existing steel plates come into contact, the welding point of one of the steel plates is easily lifted up, resulting in dislocation, which affects the welding accuracy of the steel plates.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device suitable for processing large steel plate frames of railway vehicles, comprising a processing frame and a welder, a movable plate is arranged inside the processing frame, two hydraulic cylinders are fixedly installed on the top of the processing frame, and the output ends of the two hydraulic cylinders are fixedly connected to the movable plate; the welder is located on the top of the processing frame and in the gap between the two hydraulic cylinders, the welder is connected to a welding gun, the welding gun is located inside the processing frame and at the bottom of the movable plate, and extrusion components are arranged on both sides of the welding gun; the extrusion component comprises a U-shaped frame, a pulley is arranged inside the U-shaped frame, T-shaped blocks are arranged on both sides of the pulley, notches are arranged on the surfaces of both sides of the U-shaped frame, two T-shaped blocks are engaged with the notches and are slidably connected to the notches, and two springs are arranged between the pulley and the U-shaped frame.

[0007] In a preferred embodiment, a rotating groove is provided on the inner wall of the bottom of the processing frame, a rotating disc is provided inside the rotating groove, sliding grooves are provided on the bottom surface of the rotating disc and the inner wall of the rotating groove, and sliding beads are provided inside the sliding grooves.

[0008] In a preferred embodiment, the inner wall of the bottom of the processing frame and the surface of the turntable are both provided with a plurality of grooves, and fixing rods are provided inside the plurality of grooves. A rotating tube is sleeved on the fixing rod, and one side of the rotating tube is located outside the groove.

[0009] In a preferred embodiment, two limit plates are provided on the inner side of the bottom of the processing frame, and a plurality of telescopic rods are provided between the two limit plates and the processing frame.

[0010] In a preferred embodiment, holes are provided on both side surfaces of the limiting plate, and multiple positioning holes are provided on both side surfaces of the processing frame. The holes are symmetrical to the positioning holes, and positioning rods are provided between the holes and the positioning holes.

[0011] In a preferred embodiment, a mounting groove is provided on the surface of the limiting plate, connecting rods are provided inside the two mounting grooves, rotating drums are sleeved on the outside of the connecting rods, and one side of the rotating drums is located outside the mounting grooves.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model sets an extrusion assembly and a limit plate. The limit plate is first in contact with both sides of the steel plate, and then the movable plate is located on the top of the steel plate, so that the pulley contacts the surface of the steel plate first, generates thrust on the spring, and makes the T-shaped blocks on both sides of the pulley slide inside the notch, which can prevent the moving plate from moving too fast and affecting the safety of the welding gun. When pushing the steel plate, the rotating drum inside the limit plate cooperates with the pulley to reduce the resistance to the movement of the steel plate. The U-shaped frame and the pulley can squeeze the top of the steel plate to prevent the steel plate from being dislocated.

[0014] 2. The utility model sets a turntable to push the steel plate so that its bottom contacts the rotating tube inside the groove, drives the rotating tube to rotate on the fixed rod, makes the turntable rotate inside the rotating groove, and drives the sliding ball to slide inside the sliding groove, which can not only reduce the resistance between the steel plate and the processing frame, but also reduce the friction between the turntable and the processing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side structural schematic diagram of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the extrusion assembly of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the limiting plate and the processing frame of the utility model.

[0019] Figure 5 This is a schematic diagram of the processing frame and turntable structure of the utility model.

[0020] Figure 6 This is a schematic diagram of the turntable structure of the utility model.

[0021] The accompanying drawings are marked as follows: 1. processing frame; 2. welding machine; 3. moving plate; 4. hydraulic cylinder; 5. welding gun; 6. extrusion assembly; 601. U-shaped frame; 602. pulley; 603. T-shaped block; 604. spring; 7. rotating groove; 8. turntable; 9. sliding ball; 10. groove; 11. rotating tube; 12. limiting plate; 13. hole; 14. positioning hole; 15. positioning rod; 16. rotating drum. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual Figure 1 - Figure 6A welding device suitable for processing large steel plate frames of railway vehicles, comprising a processing frame 1 and a welder 2, wherein a movable plate 3 is arranged inside the processing frame 1, and two hydraulic cylinders 4 are fixedly installed on the top of the processing frame 1, and the output ends of the two hydraulic cylinders 4 are fixedly connected to the movable plate 3; the welder 2 is located at the top of the processing frame 1 and at the gap between the two hydraulic cylinders 4, the welder 2 is connected to a welding gun 5, the welder 2 is electrically connected to the welding gun 5, the welding gun 5 is located inside the processing frame 1 and at the bottom of the movable plate 3, and extrusion components 6 are arranged on both sides of the welding gun 5; the extrusion component 6 comprises a U-shaped frame 601, a pulley 602 is arranged inside the U-shaped frame 601, T-shaped blocks 603 are arranged on both sides of the pulley 602, notches are arranged on the surfaces of both sides of the U-shaped frame 601, the two T-shaped blocks 603 are engaged with the notches and are slidably connected to the notches, and two springs 604 are arranged between the pulley 602 and the U-shaped frame 601.

[0024] In this embodiment, the U-shaped frame 601 cooperates with the pulley 602 to ensure the stability of the steel plate and improve the accuracy of steel plate welding. Retractable stretching rods are provided inside the two springs 604, and the two ends of the retractable stretching rods are respectively connected to the U-shaped frame 601 and the pulley 602.

[0025] For further information, please refer to the attached manual. Figure 5 , 6 A rotating groove 7 is arranged on the inner wall at the bottom of the processing frame 1, a rotating disc 8 is arranged inside the rotating groove 7, a sliding groove is arranged on the bottom surface of the rotating disc 8 and the inner wall of the rotating groove 7, and a sliding ball 9 is arranged inside the sliding groove.

[0026] In this embodiment, the moving steel plate drives the rotating disk 8 to rotate inside the rotating groove 7, so as to facilitate the adjustment of the angle of the steel plate.

[0027] For further information, please refer to the attached manual. Figure 4 A plurality of grooves 10 are provided on the inner wall of the bottom of the processing frame 1 and the surface of the turntable 8. A fixing rod is provided inside the plurality of grooves 10. A rotating tube 11 is sleeved on the fixing rod. One side of the rotating tube 11 is located outside the groove 10.

[0028] In this embodiment, the steel plate drives the rotating tube 11 to rotate on the fixed rod, which can reduce the friction between the steel plate and the processing frame 1.

[0029] For further information, please refer to the attached manual. Figure 4 Two limiting plates 12 are provided on the inner side of the bottom of the processing frame 1 , and a plurality of telescopic rods are provided between the two limiting plates 12 and the processing frame 1 .

[0030] Furthermore, holes 13 are provided on both side surfaces of the limiting plate 12 , and multiple positioning holes 14 are provided on both side surfaces of the processing frame 1 . The holes 13 are symmetrical to the positioning holes 14 , and positioning rods 15 are provided between the holes 13 and the positioning holes 14 .

[0031] Furthermore, a mounting groove is provided on the surface of the limiting plate 12, and connecting rods are provided inside the two mounting grooves. A rotating cylinder 16 is sleeved on the outer side of the connecting rods, and one side of the rotating cylinder 16 is located on the outer side of the mounting groove.

[0032] In this embodiment, two limiting plates 12 can be used to limit the two sides of the steel plate.

[0033] Working principle: first place the steel plate on the processing frame 1, pull the positioning rods 15 on both sides of the limit plate 12 to separate it from the holes 13 on the surface of the limit plate 12, then pull the limit plate 12 to drive the telescopic rod to stretch, so that the limit plate 12 contacts the side of the steel plate, and then insert the positioning rod 15 into the hole 13 and snap it into the positioning hole 14 on the surface of the processing frame 1 to fix the limit plate 12.

[0034] Then, the hydraulic cylinder 4 on the top of the processing frame 1 is started to drive the movable plate 3 to move downward, so that the pulley 602 inside the U-shaped frame 601 contacts the steel plate, which can apply pressure to the welding point of the steel plate, and the welding gun 5 contacts the steel plate to weld the steel plate. After welding one of the parts of the steel plate is completed, the steel plate is pushed to move on the processing frame 1, so that the bottom of the steel plate contacts the rotating tube 11 inside the groove 10, and the rotating tube 11 is driven to rotate on the fixed rod, which can reduce the friction between the steel plate and the processing frame 1, wherein the side of the steel plate contacts the rotating drum 16 inside the mounting groove on the surface of the limit plate 12, and the rotating drum 16 is driven to rotate on the connecting rod, which can reduce the resistance between the steel plate and the limit plate 12, and avoid the steel plate from getting stuck during the movement;

[0035] In addition, during the movement, friction is generated between the pulley 602 on the top of the steel plate and the steel plate, which can not only reduce the friction between the steel plate and the U-shaped frame 601, but also continuously exert pressure on the steel plate to avoid misalignment at the welding point of the steel plate, thereby improving the stability of the steel plate.

[0036] Then, when the angle of the steel plate needs to be changed, the steel plate is pushed so that its bottom moves along the rotating tube 11, and the rotating disk 8 is driven to rotate inside the rotating groove 7, and the sliding ball 9 is driven to slide inside the sliding groove, so that the angle of the steel plate can be adjusted.

[0037] The utility model can squeeze the top of the steel plate during its movement by using the U-shaped frame 601 and the pulley 602, thereby improving the stability of the steel plate and conveniently adjusting the angle of the steel plate through the turntable 8.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A welding device suitable for processing large steel plate frames of railway vehicles, characterized in that: It comprises a processing frame (1) and a welding device (2), wherein a movable plate (3) is provided inside the processing frame (1), two hydraulic cylinders (4) are fixedly installed on the top of the processing frame (1), and the output ends of the two hydraulic cylinders (4) are fixedly connected to the movable plate (3); The welder (2) is located on the top of the processing frame (1) and in the gap between the two hydraulic cylinders (4); the welder (2) is connected to a welding gun (5); the welding gun (5) is located inside the processing frame (1) and at the bottom of the movable plate (3); and extrusion assemblies (6) are provided on both sides of the welding gun (5); The extrusion assembly (6) comprises a U-shaped frame (601), a pulley (602) is arranged inside the U-shaped frame (601), T-shaped blocks (603) are arranged on both sides of the pulley (602), notches are arranged on both sides of the surface of the U-shaped frame (601), the two T-shaped blocks (603) are engaged with the notches and are slidably connected with the notches, and two springs (604) are arranged between the pulley (602) and the U-shaped frame (601).

2. A welding device for processing large steel plate frames for railway vehicles according to claim 1, characterized in that: A rotating groove (7) is provided on the inner wall of the bottom of the processing frame (1), a rotating disc (8) is provided inside the rotating groove (7), a sliding groove is provided on the bottom surface of the rotating disc (8) and the inner wall of the rotating groove (7), and a sliding ball (9) is provided inside the sliding groove.

3. A welding device for processing large steel plate frames for railway vehicles according to claim 2, characterized in that: The inner wall at the bottom of the processing frame (1) and the surface of the rotating disk (8) are both provided with a plurality of grooves (10), and a fixing rod is provided inside each of the plurality of grooves (10). A rotating tube (11) is sleeved on the fixing rod, and one side of the rotating tube (11) is located outside the groove (10).

4. A welding device for processing large steel plate frames for railway vehicles according to claim 3, characterized in that: Two limiting plates (12) are provided on the inner side of the bottom of the processing frame (1), and a plurality of telescopic rods are provided between the two limiting plates (12) and the processing frame (1).

5. A welding device for processing large steel plate frames for railway vehicles according to claim 4, characterized in that: Holes (13) are provided on both side surfaces of the limiting plate (12), a plurality of positioning holes (14) are provided on both side surfaces of the processing frame (1), the holes (13) are symmetrical with the positioning holes (14), and positioning rods (15) are provided between the holes (13) and the positioning holes (14).

6. A welding device for processing large steel plate frames for railway vehicles according to claim 5, characterized in that: The surface of the limiting plate (12) is provided with a mounting groove, and connecting rods are provided inside the two mounting grooves. A rotating cylinder (16) is sleeved on the outside of the connecting rods, and one side of the rotating cylinder (16) is located outside the mounting groove.

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