Passenger train body plasma cutting auxiliary device

Abstract

The utility model discloses a plasma cutting auxiliary device for a passenger train body. The plasma cutting auxiliary device comprises a clamping part and a limiting part, the clamping part is used for holding and fixing plasma cutting equipment; the limiting part is used for limiting the motion trail of the plasma cutting equipment; the limiting part comprises a sliding rail movably connected with the auxiliary device, the limiting part can slide in the extending direction of the sliding rail, and a plurality of fixing devices are arranged on the sliding rail. The auxiliary device is used for clamping the plasma cutting device to be matched with a track formed by the sliding rail, so that a traditional handheld cutting mode during side wall cutting is changed, the flatness of a notch during side wall cutting is improved, polishing after pre-cutting and secondary cutting before welding are omitted, manpower, time and cost can be greatly saved, and the production efficiency is improved. And meanwhile, standardized discharging of the side wall plates can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of train maintenance, and particularly relates to a plasma cutting auxiliary device for a railway passenger car body. Background Art

[0002] At present, handheld gas welding cutting is adopted for pre-cutting the side wall of the passenger car body. There are two main problems: 1. The amount of slag and molten metal flowing down at the cut is large; 2. It is difficult to ensure that the cut is straight. Through on-site investigation, it is found that the reasons for the slag and molten metal flowing down at the cut are that it is difficult to control the distance between the cutting torch and the wall panel, the cutting is not smooth during cutting, and the heat received by each part varies greatly. Moreover, the operation time is relatively long during cutting. At the same time, manual handheld gas welding cutting has relatively high requirements for the skill level of personnel. After cutting, the flatness of the cut is poor, and secondary grinding is required for the cutting part during replacement, resulting in waste of labor and cycle, and relatively low maintenance efficiency. Content of the Utility Model

[0003] In view of this, the utility model provides a plasma cutting auxiliary device for a railway passenger car body to solve the above problems.

[0004] To solve the above technical problems, the utility model provides a plasma cutting auxiliary device for a railway passenger car body, including:

[0005] A clamping part and a limiting part; the clamping part is for holding by hand and fixing the plasma cutting equipment; the limiting part is for restricting the movement track of the plasma cutting equipment.

[0006] The limiting part includes a slide rail movably connected to the auxiliary device. The limiting part can slide along the extension direction of the slide rail, and a plurality of fixing devices are arranged on the slide rail.

[0007] As an optional mode, the clamping part is provided with a clamping hole for forming a mating fixation with the gun head of the plasma cutting equipment.

[0008] As an optional mode, a plurality of locking screws are sequentially arranged along the inner ring direction of the clamping hole.

[0009] As an optional mode, a bushing is also sleeved on the inner wall of the clamping hole.

[0010] As an optional mode, the limiting part is further provided with an adjusting device. The adjusting device includes a telescopic rod and a roller; the telescopic direction of the telescopic rod coincides with the diameter in the vertical direction of the clamping hole, and the roller is in meshing transmission with the telescopic rod for adjusting the telescopic length of the telescopic rod.

[0011] As an optional mode, the limiting part is provided with a groove, and the slide rail is provided with a protrusion on the side away from the vehicle body. The limiting part is sleeved on the protrusion of the slide rail through the groove to move along the extension direction of the slide rail.

[0012] As an alternative, the fixing device is a magnet.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By means of the cooperation between the auxiliary device and the trajectory formed by the plasma cutting device and the slide rail, the traditional hand-held cutting method during side wall cutting is changed, the flatness of the cut during side wall cutting and replacement is improved, the grinding after pre-cutting and the secondary trimming before welding are eliminated, which can greatly save labor and time costs, improve the operation efficiency, and at the same time realize the standardized blanking of side wall plates. Description of the Drawings

[0015] Figure 1 It is the front view of the plasma cutting auxiliary device provided by the embodiment of the present utility model;

[0016] Figure 2 It is the side view of the plasma cutting auxiliary device provided by the embodiment of the present utility model;

[0017] Figure 3 It is the assembly schematic diagram of the plasma cutting auxiliary device provided by the embodiment of the present utility model.

[0018] Reference numerals and their corresponding relationships:

[0019] 11 - Limiting part, 111 - Groove, 12 - Clamping part, 121 - Bushing, 122 - Locking screw, 13 - Slide rail, 131 - Magnet seat, 132 - Protrusion, 2 - Plasma cutting device, 31 - Roller, 32 - Telescopic part. Detailed Embodiments

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below in conjunction with the specific embodiments.

[0021] Please refer to Figures 1 - 3 , this embodiment provides a plasma cutting auxiliary device 1 for a railway passenger car body, including: a clamping part 12 and a limiting part 11; the clamping part 12 is for holding by hand and fixing the plasma cutting equipment; the limiting part 11 is for restricting the movement trajectory of the plasma cutting equipment; the limiting part 11 includes a slide rail 13 movably connected to the auxiliary device, the limiting part 11 can slide along the extension direction of the slide rail 13, and a plurality of fixing devices are arranged on the slide rail 13.

[0022] Please refer to again Figure 1 And Figure 3, as an alternative, the clamping portion 12 is provided with a clamping hole for forming a mating fixation with the gun head of a plasma cutting device. The plasma cutting device may be a cutting device such as a plasma cutting machine equipped with a plasma cutting nozzle. In this embodiment, in order to better clamp the plasma cutting device and ensure stability during the cutting process, a clamping hole is provided in the clamping portion 12, and a mating fixation is formed with the gun head of the plasma cutting device through the hole shape. Moreover, along the inner ring direction of the clamping hole, a plurality of locking screws 122 are sequentially arranged to further increase the stability with the gun head. Optionally, a bushing is also sleeved on the inner wall of the clamping hole to improve the service life.

[0023] Please refer to again Figure 2 , in this embodiment, the limiting portion 11 is further provided with an adjusting device. The adjusting device includes a telescopic rod and a roller 31; the telescopic direction of the telescopic rod coincides with the diameter of the clamping hole in the vertical direction, and the roller 31 is in meshing transmission with the telescopic rod for adjusting the telescopic length of the telescopic rod. The diameter of the clamping hole can be further adjusted through the telescopic length of the telescopic rod to cooperate with plasma cutting gun heads of different models.

[0024] After forming a fixation with the plasma cutting device through the above solution, in order to perform cutting along the slide rail 13, please refer to again Figure 2 , a groove 111 is provided in the limiting portion 11 of this embodiment. The groove 111 can be in any concave polygon shape such as a C shape or a rectangle. And a protrusion 132 is provided on the side of the slide rail 13 away from the side close to the vehicle body. In this way, the limiting portion 11 is sleeved on the protrusion 132 of the slide rail 13 through the groove 111 and can move along the extending direction of the slide rail 13. Additionally, since this embodiment is used for cutting a railway train in an implementation scenario, and the railway train usually has a metal shell, a fixing device is assembled on the slide rail 13. Optionally, it is a magnet seat 131 to clamp and fix the slide rail 13 on the vehicle body. In this way, when this embodiment is performing cutting, it can perform cutting along the direction of the slide rail 13, achieving a better cutting smoothness effect compared to simply manually holding. It improves the problem of uneven cut surfaces after handheld gas cutting and eliminates the secondary pre-welding grinding after handheld cutting.

[0025] By using the method of side wall plasma-assisted cutting in this embodiment, the traditional handheld cutting method during side wall cutting is changed, the flatness of the cut surface during side wall cutting and replacement is improved, the grinding after pre-cutting and the secondary trimming before welding are eliminated, which can save a large amount of labor and time costs, improve the operation efficiency, and at the same time realize the standardized blanking of side wall plates. It ensures the assembly gap for the subsequent wall panel repair welding, improves the stability during the welding process, reduces the potential welding quality hazards, reduces the rework of the wall panel due to welding problems, and comprehensively improves the welding quality.

[0026] The above are only the preferred embodiments of the present utility model. It should be noted that the above preferred embodiments should not be construed as limiting the present utility model, and the protection scope of the present utility model should be subject to the scope defined by the claims. For those of ordinary skill in the art of this technology, without departing from the spirit and scope of the present utility model, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as within the protection scope of the present utility model.

Claims

1. A railway passenger car body plasma cutting auxiliary device, characterized in that: include: A clamping portion (12) and a limiting portion (11); the clamping portion (12) is used for hand-holding and fixing the plasma cutting device (2); the limiting portion (11) is used for limiting the movement trajectory of the plasma cutting device (2); The limiting portion (11) comprises a slide rail (13) movably connected to the auxiliary device; the limiting portion (11) can slide along the extension direction of the slide rail (13); and a plurality of fixing devices are arranged on the slide rail (13).

2. The railway passenger car body plasma cutting auxiliary device according to claim 1, characterized in that: The clamping portion (12) is provided with a clamping hole for being matched and fixed with the gun head of the plasma cutting equipment (2).

3. The railway passenger car body plasma cutting auxiliary device according to claim 2, characterized in that: A plurality of locking screws (122) are arranged in sequence along the inner ring direction of the clamping hole.

4. The railway passenger car body plasma cutting auxiliary device according to claim 2, characterized in that: A bushing (121) is also sleeved on the inner wall of the clamping hole.

5. The railway passenger car body plasma cutting auxiliary device according to claim 2, characterized in that: The limiting portion (11) is also provided with an adjustment device, which comprises a telescopic rod and a roller (31); the telescopic direction of the telescopic rod coincides with the diameter of the clamping hole in the vertical direction, and the roller (31) is meshed with the telescopic rod for transmission, and is used to adjust the telescopic length of the telescopic rod.

6. The railway passenger car body plasma cutting auxiliary device according to claim 1, characterized in that: The limiting portion (11) is provided with a groove (111), and the sliding rail (13) is provided with a protrusion (132) on a side away from the sliding rail and close to the vehicle body. The limiting portion (11) is sleeved on the protrusion (132) of the sliding rail (13) through the groove (111) so as to move along the extension direction of the sliding rail (13).

7. The railway passenger car body plasma cutting auxiliary device according to claim 1, characterized in that: The fixing device is a magnet seat (131).

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