Railway car end wall fastener pin adhesive positioning device

By designing a positioning device, dimensional tolerances in the bonding construction of the end wall fasteners of rail passenger cars are eliminated, enabling rapid and accurate positioning and measurement. This solves the problem of cumulative tolerances caused by multiple measurements in existing technologies, and improves construction quality and efficiency.

CN224526969UActive Publication Date: 2026-07-21CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the construction of fastening nails for the end walls of rail passenger cars, the existing technology requires multiple people to measure at the same time, which leads to cumulative tolerances, making it difficult to guarantee dimensional accuracy, resulting in rework and waste of resources.

Method used

Design a positioning device that includes a positioning frame and multiple positioning rods. The positioning rods have fastening nail holes and a positioning ruler in the center. The device is made of aluminum and can quickly and accurately measure and position the fastening nails.

Benefits of technology

Ensure consistency and accuracy in fastener bonding construction, reduce measurement errors, improve construction efficiency, reduce labor intensity, and avoid rework.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of railcar end wall fastening nail bonding positioning device, including locating frame;And the multiple locating rods formed in the different position of locating frame, locating rod is processed with multiple fastening nail holes according to the fastening nail bonding position of end wall;The center of locating frame is provided with locating meter, and locating meter can measure any fastening nail hole on any locating rod.The positioning device of the utility model can ensure the consistency of position size in the batch production of intelligent motor train unit project passenger room end wall fastening nail bonding construction, ensure product quality.The device can avoid the introduction of cumulative tolerance error of measurement data caused by operator, realize convenient operation, accurate positioning and rapid adjustment under the condition of ensuring construction quality.
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Description

Technical Field

[0001] This utility model relates to the field of fastening nail bonding technology for end walls of rail passenger vehicles, and in particular to a fastening nail bonding and positioning device for end walls of rail passenger vehicles. Background Technology

[0002] Currently, during the installation of fasteners on the passenger side walls of intelligent high-speed trains, it is necessary to pre-determine the dimensions of the fasteners on the end walls of the train body. During the marking process, the dimensions of these fasteners are directly measured and marked. According to existing methods, using a right-angle ruler, meter stick, and marker to measure and mark these dimensions requires multiple people simultaneously, taking 180 minutes to complete. Because multiple people are simultaneously measuring and positioning, cumulative tolerances occur, and issues such as uneven lines and dimensional errors are prone to occur. Ultimately, the pre-determined dimensions may not meet the quality standards for the installation of the passenger side wall fasteners, frequently leading to rework and unnecessary waste of manpower and resources.

[0003] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a fastening and positioning device for the end wall fasteners of rail passenger cars. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device for bonding and fastening nails on the end walls of rail passenger cars. This positioning device can eliminate the dimensional tolerances caused by scribing during the bonding and fastening of end walls in the passenger compartment of intelligent EMU projects, ensuring that the dimensions of the bonding end walls are accurate and completely consistent with the process drawings.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a fastening and positioning device for end wall fasteners on a railway passenger car. The positioning device includes:

[0007] Positioning frame; and

[0008] Multiple positioning rods are formed at different positions of the positioning frame, and the positioning rods are machined with multiple fastening nail holes according to the fastening nail bonding position of the end wall;

[0009] A positioning ruler is provided at the center of the positioning frame, and the positioning ruler can measure any fastening nail hole on any positioning rod.

[0010] Furthermore, the positioning frame is configured as a square frame structure, and the four positioning rods of the frame are configured as outer positioning rods.

[0011] The positioning frame is provided with inner positioning rods along its diagonal direction and along the center line of the outer positioning rod, and the intersection of the inner positioning rods is the center of the positioning frame, where the positioning ruler is installed.

[0012] Furthermore, both the outer positioning rod and the inner positioning rod are made of square aluminum profiles with a width of 50mm.

[0013] Furthermore, the positioning ruler is rotatably connected to the center of the positioning frame.

[0014] Furthermore, the positioning ruler is connected to the center of the positioning frame via a rotating shaft and a rotating rod, and the positioning ruler can rotate around the rotating shaft at an angle range of 0° to 360°.

[0015] Furthermore, the length of the outer positioning rod is 1000mm.

[0016] The above technical solution provides a rail passenger car end wall fastening nail bonding and positioning device, which has the following beneficial effects:

[0017] This utility model's positioning device ensures the consistency of positional dimensions during mass production of the fastening nails for the passenger interior walls of intelligent high-speed trains, guaranteeing product quality. The device avoids the introduction of cumulative tolerance errors in measurement data caused by operators, achieving convenient operation, accurate positioning, and rapid adjustment while ensuring construction quality.

[0018] The positioning device of this utility model can simplify the tedious process of repeated confirmation and adjustment by operators, effectively solve the contradiction between accuracy and efficiency in the construction of fasteners on the interior wall of the guest room. The whole is made of aluminum, which is not only convenient for daily maintenance and will not be oxidized by air, but also provides a favorable construction support for the positioning and adjustment of fasteners through reasonable structural design. It eliminates the need for operators to measure the positioning points of thousands of fasteners one by one for a long time, effectively reducing the labor intensity of operators. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a rail passenger car end wall fastening nail bonding and positioning device disclosed in an embodiment of the present utility model;

[0021] Figure 2This is a schematic diagram of the positioning ruler of the track passenger car end wall fastening nail bonding positioning device disclosed in the embodiment of the present utility model at the first measuring angle;

[0022] Figure 3 This is a schematic diagram of a positioning device for fastening and positioning the end wall of a rail passenger car, as disclosed in an embodiment of the present invention, rotating at a second measurement angle at a positioning meter.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Positioning frame; 2. Positioning ruler;

[0025] 101. Outer positioning rod; 102. Inner positioning rod; 103. Fastening screw hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] See Figures 1 to 3 As shown;

[0028] This embodiment provides a rail passenger car end wall fastening nail bonding and positioning device, the positioning device comprising:

[0029] Positioning frame 1; and

[0030] Multiple positioning rods are formed at different positions of the positioning frame 1, and the positioning rods are processed with multiple fastening nail holes 103 according to the fastening nail bonding position of the end wall;

[0031] A positioning ruler 2 is provided at the center of the positioning frame 1, and the positioning ruler 2 can measure any fastening nail hole 103 on any positioning rod.

[0032] Specifically, this embodiment discloses a device for fastening nail bonding and positioning. Its main body is a positioning frame 1, and the frame and interior of the positioning frame 1 are formed with multiple positioning rods. Multiple fastening nail holes 103 are pre-processed according to the bonding position of the fastening nails. Simultaneously, a positioning ruler 2 is provided at the center of the positioning frame 1 in this embodiment. The positioning ruler 2 in this embodiment can measure any fastening nail hole 103 on any positioning rod. This device effectively eliminates the dimensional tolerance problems caused by marking lines during the fastening nail bonding construction of the passenger interior end wall in intelligent high-speed train projects.

[0033] Preferably, in this embodiment, the positioning frame 1 is configured as a square frame structure, and the four positioning rods of the frame of the positioning frame 1 are configured as outer positioning rods 101.

[0034] The positioning frame 1 is provided with inner positioning rods 102 along its diagonal direction and along the center line direction of the outer positioning rod 101, and the intersection of the inner positioning rods 102 is the center of the positioning frame, where the positioning ruler 2 is installed.

[0035] In this embodiment, both the outer positioning rod 101 and the inner positioning rod 102 are made of square aluminum profiles with a width of 50mm.

[0036] First, based on the bonding position of the end wall fasteners in the passenger compartment of the intelligent EMU project, the dimensions and positioning graphics of each fastener spacing in the bonding area of ​​the end wall fasteners were extracted using a 3D model. According to the process drawings, the bonding and installation positioning points of the end wall fasteners are concentrated in the middle area of ​​the end wall, on the extended straight line of the radiating reference point. In order to increase practicality, a device capable of positioning the end wall fasteners was made with a height of 1 meter.

[0037] Secondly, using laser cutting technology combined with the end face pattern, holes are drilled on the surface of a 50mm wide square aluminum profile (in this embodiment, the cross-sectional dimensions of the aluminum profile are consistent with the plane dimensions for fastening nail bonding) with reference to the bonding points on the fastening nail bonding location drawing. These holes are the fastening nail holes mentioned above, to facilitate the fastening nail bonding construction of the end wall.

[0038] The positioning device in this embodiment requires grinding the edges of the cut surface to prevent scratches to construction workers and vehicles during use.

[0039] During assembly, based on the above structural limitations, the eight aluminum square profile positioning rods are assembled and reinforced according to the required end wall fastening nail bonding positions. The assembly and reinforcement methods will not be described in detail in this application, and can be any connection method in the prior art, such as designing mounting grooves and fastening bolts. To ensure that the positional dimensions remain unchanged during use, after assembly, the positioning ruler 2 of this embodiment is installed at the center point of the device.

[0040] Preferably, in this embodiment, the positioning ruler 2 is rotatably connected to the center of the positioning frame 1.

[0041] More preferably, in this embodiment, the positioning ruler 2 is connected to the center of the positioning frame 1 via a rotating shaft and a rotating rod, and the positioning ruler 2 can rotate around the rotating shaft at an angle range of 0° to 360°.

[0042] Preferably, the length of the outer positioning rod 101 in this embodiment is 1000mm.

[0043] In this embodiment, the positioning ruler 2 can be rotatably connected to the center of the positioning frame 1 via a rotating shaft. The structure of the rotating shaft can be a conventional rotating shaft, which will not be elaborated further. The positioning ruler 2, which can rotate 360°, can be used to measure and position the fasteners and the tolerances of all fasteners relative to the reference point. In use, due to the aluminum material of the device, it has good portability and the positioning ruler 2 markings on the surface, it can accurately locate the marking points for the fastener bonding positions on the interior wall of the guest room. Referring to the reference point on the drawing and the number of fasteners in the area, the number of fasteners can be added after measuring with the positioning ruler 2 on each positioning rod of this device. After assembly, the bonding positions are marked and fixed on the interior wall of the guest room using this device. By moving the device up and down through the reference point and extension line of the interior wall of the guest room, the marking and positioning can be continued, fully ensuring product quality.

[0044] The above technical solution provides a rail passenger car end wall fastening nail bonding and positioning device, which has the following beneficial effects:

[0045] This utility model's positioning device ensures the consistency of positional dimensions during mass production of the fastening nails for the passenger interior walls of intelligent high-speed trains, guaranteeing product quality. The device avoids the introduction of cumulative tolerance errors in measurement data caused by operators, achieving convenient operation, accurate positioning, and rapid adjustment while ensuring construction quality.

[0046] The positioning device of this utility model can simplify the tedious process of repeated confirmation and adjustment by operators, effectively solve the contradiction between accuracy and efficiency in the construction of fasteners on the interior wall of the guest room. The whole is made of aluminum, which is not only convenient for daily maintenance and will not be oxidized by air, but also provides a favorable construction support for the positioning and adjustment of fasteners through reasonable structural design. It eliminates the need for operators to measure the positioning points of thousands of fasteners one by one for a long time, effectively reducing the labor intensity of operators.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for bonding and positioning fasteners on the end wall of a rail passenger car, characterized in that, The positioning device includes: Positioning box (1); and Multiple positioning rods are formed at different positions of the positioning frame (1), and the positioning rods are processed with multiple fastening nail holes (103) according to the fastening nail bonding position of the end wall; The positioning frame (1) is provided with a positioning ruler (2) at its center, and the positioning ruler (2) can measure any fastening nail hole (103) on any positioning rod.

2. The rail passenger car end wall fastening nail bonding and positioning device according to claim 1, characterized in that, The positioning frame (1) is configured as a square frame structure, and the four positioning rods of the frame of the positioning frame (1) are configured as outer positioning rods (101). The positioning frame (1) is provided with an inner positioning rod (102) along its diagonal direction and along the center line direction of the outer positioning rod (101), and the intersection of the inner positioning rods (102) is the center of the positioning frame (1), and the positioning ruler (2) is installed at the center.

3. The rail passenger car end wall fastening nail bonding and positioning device according to claim 2, characterized in that, Both the outer positioning rod (101) and the inner positioning rod (102) are made of square aluminum profiles with a width of 50mm.

4. The rail passenger car end wall fastening nail bonding and positioning device according to claim 2, characterized in that, The positioning ruler (2) is rotatably connected to the center of the positioning frame (1).

5. The rail passenger car end wall fastening nail bonding and positioning device according to claim 4, characterized in that, The positioning ruler (2) is connected to the center of the positioning frame (1) via a rotating shaft and a rotating rod, and the positioning ruler (2) can rotate around the rotating shaft at an angle range of 0° to 360°.

6. The rail passenger car end wall fastening nail bonding and positioning device according to claim 3, characterized in that, The length of the outer positioning rod (101) is 1000mm.