Railway wagon body remanufacturing plasma cutting device

Abstract

The utility model discloses a railway wagon body remanufacturing plasma cutting device, which belongs to the technical field of plasma cutting devices, and comprises a working vehicle, a welding system and a mechanical arm, and the top of the working vehicle is provided with a top seat; the welding system is arranged on the top of the working vehicle, the mechanical arm is located on the top of the top base, a plasma cutting machine is arranged at the tail end of the mechanical arm, an electric air cylinder connected with the mechanical arm is arranged on the top of the working vehicle, and guide wheels are arranged on the periphery of the bottom of the working vehicle. The transformer is arranged on the left side of the welding machine and the water-cooling machine, and the welding machine is arranged on the top of the water-cooling machine. According to the plasma cutting device for remanufacturing of the railway wagon body, through pre-measurement and marking, the cutting precision can be greatly improved, the process of assembling and secondary cutting is omitted, the bottleneck procedure passing capacity is improved, the plate matching quality is greatly improved, and a foundation is laid for follow-up automatic welding.

Description

Technical Field

[0001] This utility model relates to the field of plasma device technology, and in particular to a plasma cutting device for remanufacturing railway freight car bodies. Background Technology

[0002] Railway freight cars primarily transport goods and can be categorized into general-purpose freight cars and special-purpose freight cars based on their purpose. General-purpose freight cars are vehicles suitable for transporting various types of goods, such as open wagons, boxcars, and flatcars. Special-purpose freight cars are vehicles used to transport a specific type of goods, such as coal cars, container cars, and bulk cement cars. After prolonged use, parts of railway train carriages may corrode, posing significant safety hazards if continued use is deemed unsafe. These sections are typically cut up for later reuse.

[0003] Currently, most truck cutting uses oxygen or industrial gas cutting, which results in low cutting precision, leading to secondary gas cutting in subsequent processes and significantly affecting the quality of the panels. During oxygen or industrial gas cutting, due to uneven flame temperature distribution and the effect of oxygen flow, the kerf width is usually wide and is prone to unevenness and poor perpendicularity, resulting in low cutting precision. The cut surface is also prone to secondary gas cutting in subsequent processes, which greatly affects the quality of the panels. Utility Model Content

[0004] To address the problem that cutting the flat surface easily leads to secondary gas cutting in subsequent processes, significantly affecting the quality of the panels, this utility model provides a plasma cutting device for the remanufacturing of railway freight car bodies. The technical solution is as follows:

[0005] A plasma cutting device for remanufacturing railway freight car bodies includes a working carriage, a welding system, and a robotic arm, wherein a top mount is provided on the top of the working carriage;

[0006] The welding system is located on the top of the work vehicle, the robotic arm is located on the top of the top seat, the end of the robotic arm is equipped with a plasma cutter, the top of the work vehicle is equipped with an electric cylinder connected to the robotic arm, and guide wheels are provided around the bottom of the work vehicle.

[0007] Preferably, the welding system includes a transformer, a welding machine, and a water chiller, with the transformer located to the left of the welding machine and the water chiller, and the welding machine located on top of the water chiller.

[0008] Preferably, the work vehicle is provided with fixing devices on all four sides of its outer surface. The fixing devices consist of fixing plates, screws, foot pads and rotating rods.

[0009] Preferably, the number of fixing plates is four and they are symmetrically distributed on the left and right sides of the outer surface of the work vehicle. The screw is disposed inside the fixing plate and both ends penetrate through and extend to the outside of the fixing plate.

[0010] Preferably, the foot pad is disposed at the bottom of the screw, the rotating rod is disposed at the top of the screw, and the fixed plate has a threaded groove inside that is adapted to the size of the screw.

[0011] Preferably, a bracket is provided on the front of the outer surface of the top seat, and a lifting device is provided at the bottom of the bracket.

[0012] The device has a compact and reasonable overall layout, and its horizontal position and spatial height can be easily adjusted. It can be adapted to cutting requirements under various conditions, making cutting tasks convenient and providing high cutting accuracy. Beneficial effects

[0013] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0014] This plasma cutting device for remanufacturing railway freight car bodies has a compact and reasonable overall layout. It allows for convenient adjustment of the horizontal position and spatial height, making it suitable for cutting requirements under various conditions and facilitating cutting tasks while also providing high cutting precision. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the cutting device in the plasma cutting device for remanufacturing railway freight car bodies according to this utility model.

[0017] In the diagram, 1. Working vehicle; 2. Top mount; 3. Welding system; 4. Robotic arm; 5. Plasma cutter; 6. Electric cylinder; 7. Guide wheel; 8. Fixing device; 9. Bracket; 10. Lifting device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] like Figure 1 As shown, the plasma cutting device for remanufacturing railway freight car bodies includes a working carriage 1, a welding system 3 and a robotic arm 4, with a top seat 2 installed on the top of the working carriage 1.

[0020] Welding system 3 is located on top of work vehicle 1. Welding system 3 includes a transformer, a welding machine and a water chiller. The transformer is located on the left side of the welding machine and the water chiller. The welding machine is located on top of the water chiller. The robotic arm 4 is located on top of the top seat 2. A plasma cutter 5 is located at the end of the robotic arm 4. An electric cylinder 6 connected to the robotic arm 4 is located on the top of work vehicle 1. Guide wheels 7 are located around the bottom of work vehicle 1.

[0021] Specifically, a bracket 9 is provided on the front of the outer surface of the top seat 2, and a hanger 10 is provided at the bottom of the bracket 9. The bracket 9 and the hanger 10 can be used as a device for mounting and suspending the plasma cutter 5.

[0022] In this embodiment, the electric cylinder 6 can adjust the height of the robotic arm 4 and the plasma cutter 5, and adjust the cutting position.

[0023] like Figure 1 As shown, the work vehicle 1 is equipped with fixing devices 8 on all four sides of its outer surface. The fixing devices 8 consist of fixing plates, screws, foot pads and rotating rods. There are four fixing plates, which are symmetrically distributed on the left and right sides of the outer surface of the work vehicle 1. The screws are located inside the fixing plates and both ends penetrate and extend to the outside of the fixing plates. The foot pads are located at the bottom of the screws and the rotating rods are located at the top of the screws. The fixing plates have threaded grooves that are adapted to the size of the screws.

[0024] In this embodiment, the work vehicle 1 can be easily fixed by twisting the four screw rods to rotate and lower the screw until the four foot pads contact the ground and are secure. When it is necessary to cancel the fixation, the screw rods are twisted in the opposite direction until the foot pads no longer contact the ground.

[0025] The device of this utility model has a compact and reasonable overall layout, and can be easily adjusted in terms of horizontal position and spatial height. It can be adapted to cutting requirements under various conditions, facilitates cutting tasks, and has high cutting accuracy.

[0026] The plasma cutting process for remanufacturing railway freight car bodies includes the following steps:

[0027] S1: After confirming the vehicle number to be cut, mark the inside of the vehicle according to the degree of corrosion. Make zoning marks on the side walls to facilitate cutting and measurement. Use a fine pen to draw the lines so that the collaborative cutting robot can find the right point. The lines in the zoning must be drawn in one step and be completely horizontal. Make zoning marks on the side walls to facilitate cutting and measurement. Draw a horizontal kerf of uniform height to facilitate subsequent plate fitting and to standardize the cutting height limit for robot plasma cutting and flame cutting repair.

[0028] S2: Cut off the horizontal lines of the end wall and side wall inside the carriage, hoist the work vehicle 1 into the carriage, and use the collaborative cutting robot work vehicle to cut the side wall and end wall in sections;

[0029] S3: The work vehicle 1 is hoisted to the outside of the carriage, and the workers use a collaborative robot to perform plasma cutting of the vertical weld seam of the column and the horizontal weld seam of the end wall reinforcement.

[0030] S4: Mark the board into seven areas: A, B, C, D, E, F, and G. Use a tape measure to measure the length and width of each area and record the dimensions. Based on the measured dimensions, use a shearing machine to cut the board precisely, keeping the shearing deviation within ±1mm.

[0031] S5: Place the boards strictly according to the marked positions, keeping a 1mm gap between the new and old boards. The spot welding positions are near the ends of the new and old boards. Pay attention to the gap control at the partition splicing points, such as between area A and area B, and keep it within 2mm.

[0032] This new process, through pre-measurement and marking, can greatly improve the cutting accuracy, eliminate the secondary cutting process during assembly, improve the throughput of bottleneck processes, significantly improve the quality of assembly, and lay the foundation for subsequent automatic welding.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plasma cutting device for remanufacturing railway freight car bodies, characterized in that, include: The work vehicle (1), welding system (3) and robotic arm (4) are provided with a top seat (2) on the top of the work vehicle (1); The welding system (3) is located on the top of the work vehicle (1), the robotic arm (4) is located on the top of the top seat (2), the end of the robotic arm (4) is equipped with a plasma cutter (5), the top of the work vehicle (1) is equipped with an electric cylinder (6) connected to the robotic arm (4), and guide wheels (7) are provided around the bottom of the work vehicle (1).

2. The plasma cutting apparatus for remanufacturing railway freight car bodies according to claim 1, characterized in that, The welding system (3) includes a transformer, a welding machine and a water chiller. The transformer is located on the left side of the welding machine and the water chiller, and the welding machine is located on top of the water chiller.

3. The plasma cutting apparatus for remanufacturing railway freight car bodies according to claim 1, characterized in that, The work vehicle (1) is equipped with fixing devices (8) on all four sides of its outer surface. The fixing devices (8) consist of a fixing plate, a screw, a foot pad, and a rotating rod.

4. The plasma cutting apparatus for remanufacturing railway freight car bodies according to claim 3, characterized in that, The number of fixed plates is four and they are symmetrically distributed on the left and right sides of the outer surface of the work vehicle (1). The screw is set inside the fixed plate and both ends penetrate and extend to the outside of the fixed plate.

5. The plasma cutting apparatus for remanufacturing railway freight car bodies according to claim 4, characterized in that, The foot pad is located at the bottom of the screw, the rotating rod is located at the top of the screw, and the fixed plate has a threaded groove inside that is adapted to the size of the screw.

6. The plasma cutting apparatus for remanufacturing railway freight car bodies according to claim 1, characterized in that, A bracket (9) is provided on the front of the outer surface of the top seat (2), and a lifting device (10) is provided at the bottom of the bracket (9).

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