A suspended tool box mounting bracket positioning device
By combining the device positioning mechanism and the bracket positioning mechanism, the precise positioning of the suspension toolbox mounting bracket is achieved, solving the problem of insufficient positioning accuracy of the suspension toolbox and improving the vehicle's NVH performance and driving stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGFENG OFF ROAD VEHICLE CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-19
AI Technical Summary
In the existing technology, the positioning accuracy of the suspension toolbox mounting bracket is insufficient, resulting in low matching accuracy between the powertrain and the vehicle body, and causing abnormal vibration transmission paths.
The device positioning mechanism and the bracket positioning mechanism are adopted. The device positioning pin cooperates with the pin hole of the vehicle frame beam. Combined with the "one side, one side, one pin" positioning method, the precise positioning of the suspension toolbox mounting bracket is achieved.
The improved positioning accuracy of the suspension toolbox installation ensures the matching accuracy between the powertrain and the vehicle body, reduces abnormal vibrations, and enhances the vehicle's NVH performance and driving stability.
Smart Images

Figure CN224375323U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of this utility model belong to the field of vehicle frame manufacturing, and more specifically, relate to a positioning device for a suspension toolbox mounting bracket. Background Technology
[0002] A suspension toolbox needs to be installed at the bottom of the chassis of a certain vehicle model. As a core component connecting the powertrain and the chassis, the installation and positioning accuracy of the suspension toolbox directly affects the vehicle's NVH performance and driving stability. When installing the suspension toolbox, mounting brackets are used to secure it. The accuracy of the mounting brackets' positioning on the chassis beam directly affects the installation and positioning accuracy of the suspension toolbox.
[0003] Current chassis underbody suspension mount positioning technology generally suffers from systemic defects. First, traditional positioning devices often rely on a single bolt hole or a simple snap-fit structure. During installation, the lack of three-dimensional spatial adjustment capabilities leads to positioning deviations exceeding ±2mm, affecting not only the matching accuracy between the powertrain and the vehicle body but also causing abnormal vibration transmission paths. For example, patent document CN217514954U discloses a chassis suspension mount positioning device. This device includes a horizontal plate and a vertical plate arranged perpendicularly to each other. The vertical plate has mounting holes for the suspension mounts, while the horizontal plate is used for positioning and limiting. A U-shaped locking hook is used to fix the positioning device to the chassis frame to be processed. Then, each suspension mount is securely connected to the mounting holes on the positioning device. A horizontal plate and a vertical plate are used to position the suspension mounts and the chassis, resulting in high positioning accuracy and speed, effectively ensuring the powertrain installation dimensions and angles.
[0004] However, a chassis suspension bracket positioning device disclosed in patent document CN217514954U uses a U-shaped locking hook to fix it to the bottom of the vehicle frame. The positioning device itself lacks positioning and is not suitable when the installation accuracy of the suspension bracket is required. Utility Model Content
[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides a positioning device for a suspended toolbox mounting bracket. A positioning mechanism mounted on the main structure achieves pin hole positioning between the suspended toolbox and the vehicle frame beam. By adjusting the positioning mechanism, the positioning blocks mounted on the L-shaped connecting blocks are made to tightly adhere to the second and third vehicle frame beams respectively. Simultaneously, the bracket positioning mechanism on the main structure forms a "one side, one edge, one pin" positioning method, achieving precise positioning of the mounting bracket on the second and fourth vehicle frame beams, thus solving the technical problems of insufficient positioning accuracy in traditional suspended toolboxes.
[0006] To achieve the above objectives, this utility model provides a positioning device for a suspended toolbox mounting bracket, comprising:
[0007] Main structure;
[0008] The device positioning mechanism provided on the main structure includes a device positioning pin, an L-shaped connecting block and a device positioning block. The fourth frame beam is provided with mounting holes corresponding to the device positioning pin. The device positioning mechanism and the frame beam are positioned by the pin hole through the cooperation of the device positioning pin and its corresponding mounting holes. The device positioning mechanism is adjusted so that the device positioning block installed on the L-shaped connecting block is tightly attached to the second frame beam and the third frame beam respectively.
[0009] And a bracket positioning mechanism provided on the main structure, which includes a bracket positioning block and a surface positioning block. Each surface positioning block is equipped with a bracket positioning pin. Each bracket positioning block, surface positioning block and bracket positioning pin form a "one side, one side, one pin" positioning method to achieve precise positioning of the bracket on the second frame beam and the fourth frame beam (12).
[0010] Furthermore, the L-shaped connecting blocks are respectively disposed on both sides of the main structure.
[0011] Furthermore, the device positioning block is mounted on the L-shaped connecting block via adjusting shims.
[0012] Furthermore, the device positioning pin is provided with threads that match the mounting hole.
[0013] Furthermore, the bracket positioning block, the surface positioning block, and the main structure are connected by adjusting shims.
[0014] Furthermore, the main body (1) is a frame structure with handles on it.
[0015] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:
[0016] (1) The device of this utility model realizes the pin hole positioning between the suspension toolbox and the frame beam through the device positioning mechanism set on the main structure. By adjusting the device positioning mechanism, the device positioning block installed on the L-shaped connecting block is tightly attached to the second frame beam and the third frame beam respectively. At the same time, the bracket positioning mechanism set on the main structure forms a "one side, one side, one pin" positioning method, realizing the precise positioning of the mounting bracket on the second frame beam and the fourth frame beam, thus solving the technical problems such as insufficient positioning accuracy of traditional suspension toolboxes.
[0017] (2) In this utility model, the device positioning pin on the device is aligned with the positioning pin hole on the frame beam. After the threaded device positioning pin is inserted, the device is slowly placed on the frame beam. The positioning device is gently pushed so that the positioning device rotates around the device positioning pin as the center so that the device positioning block in the device positioning mechanism is close to the frame beam. The threaded device positioning pin is tightened to fix the positioning device.
[0018] (3) After the positioning device of this utility model is positioned, the mounting bracket is placed on the vehicle frame beam, so that the back of the mounting bracket is close to the face positioning block. The mounting bracket has positioning pin holes, so that the positioning pin of the bracket passes through the positioning pin holes on the mounting bracket and the face positioning block. Then, the adjusting shims are adjusted so that the positioning block of the bracket is close to the side of the mounting bracket. The mounting bracket is fixed by welding process, thus completing the positioning of the mounting bracket with "one side, one side, one pin". After the installation is completed, the positioning pin of the bracket is removed. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the positioning device for the suspended toolbox mounting bracket according to an embodiment of this utility model;
[0020] Figure 2 This is a schematic diagram of the bracket positioning system of the suspended toolbox mounting bracket positioning device of this utility model;
[0021] Figure 3 This is a schematic diagram of the actual installation and positioning of the mounting bracket positioning device and the mounting bracket of this utility model.
[0022] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-main structure, 2-handle, 3-bracket positioning pin, 4-face positioning block, 5-device positioning pin, 6-bracket positioning block, 7-L-shaped connecting block, 8-device positioning block, 9-first frame beam, 10-second frame beam, 11-third frame beam, 12-fourth frame beam, 13-mounting bracket. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0024] This embodiment provides a positioning device for a suspended toolbox mounting bracket. For example... Figure 1As shown, the system includes a main structure 1, a device positioning mechanism, and a bracket positioning mechanism, with the device positioning mechanism and bracket positioning mechanism mounted on the main structure 1. The device positioning mechanism, located on the main structure 1, includes a device positioning pin 5, an L-shaped connecting block 7, and a device positioning block 8. Mounting holes for the device positioning pin 5 are drilled on the fourth frame beam 12. The device positioning pin 5 is positioned on the frame beam by engaging with its corresponding hole. Adjusting the device positioning mechanism ensures that the device positioning block 8, mounted on the L-shaped connecting block 7, is tightly attached to the first frame beam 9 and the third frame beam 11. The bracket positioning mechanism includes a bracket positioning block 6, a surface positioning block 4, and a bracket positioning pin 3. Each surface positioning block 4 is equipped with a bracket positioning pin 3. Each bracket positioning block 6, surface positioning block 4, and bracket positioning pin 3 forms a "one surface, one side, one pin" positioning method, achieving precise positioning of the mounting bracket 13 on the second frame beam 10 and the fourth frame beam 12, solving the technical problems of insufficient positioning accuracy in traditional suspension toolboxes.
[0025] In the device positioning mechanism, there are two positioning methods: pin hole positioning and edge positioning. The positioning of the suspension toolbox mounting bracket positioning device on the vehicle frame beam is achieved by the cooperation of these two positioning methods. One end of the main structure 1 is equipped with a device positioning pin 5, and two L-shaped connecting blocks 7 are installed on the outside of the main structure 1. The device positioning block 8 is installed on the L-shaped connecting block 7 through adjusting shims. Two handles 2 facilitate the placement of the positioning device on the frame beam. The device positioning pin 5 is threaded, and the fourth frame beam 12 has mounting holes for the device positioning pin 5. The positioning device of the suspension toolbox mounting bracket is positioned on the frame beam by the engagement of the device positioning pin 5 with its corresponding hole. After the device positioning pin 5 is engaged with the hole on the fourth frame beam 12, hold the handles 2 firmly with both hands and gently rotate the suspension toolbox mounting bracket positioning device so that the device positioning block 8 installed on the L-shaped connecting block 7 is tightly attached to the second frame beam 10 and the third frame beam 11 respectively, and the threaded device positioning pin 5 is fixed. The edge positioning between the suspension toolbox mounting bracket positioning device and the frame beam is achieved by adjusting the adjusting shims.
[0026] In the bracket positioning mechanism, such as Figure 2As shown, the positioning method employs a combination of three mutually cooperating positioning methods: "one face, one side, and one pin," to position the mounting bracket 13 on the second frame beam 10 and the fourth frame beam 12. Four bracket positioning blocks 6 and four face positioning blocks 4 are installed at both ends of the main structure 1. The bracket positioning blocks 6 and face positioning blocks 4 are connected to the main structure 1 via adjusting shims. Each face positioning block 4 is equipped with a bracket positioning pin 3. Each bracket positioning block 6, face positioning block 4, and bracket positioning pin 3 forms a "one face, one side, and one pin" positioning method. Each bracket positioning mechanism has four sets of "one face, one side, and one pin" positioning methods. "One face" refers to the face positioning block 4 installed on the main structure 1 and the back of the mounting bracket 13. The positioning of the surface is achieved by adjusting the shims of the surface positioning block 4 so that the back of the mounting bracket 13 is in close contact with the surface positioning block 4. "One side" refers to the positioning of the bracket positioning block 6 installed on the main structure 1 and the side of the mounting bracket 13. The bracket positioning block 6 is adjusted by adjusting the shims so that it is in close contact with the side of the mounting bracket 13, thus achieving "one side" positioning. "One pin" refers to the positioning of the bracket positioning pin 3 installed on the surface positioning block 4 and the pin hole on the mounting bracket 13. The mounting bracket 13 has pin holes that can cooperate with the bracket positioning pin 3. When the mounting bracket 13 is installed on the second frame beam 10 and the fourth frame beam 12, the mounting bracket 13 needs to pass through the bracket positioning pin 3 to achieve "one pin" positioning.
[0027] like Figure 3 As shown, the mounting bracket 13 is installed on the second frame beam 10 and the fourth frame beam 12 respectively. The device positioning block 8 is tightly attached to the second frame beam 10 and the third frame beam 11 respectively. There is no operation on the first frame beam 9. After all positioning is completed, the mounting bracket 13 is welded to the corresponding second frame beam 10 and fourth frame beam 12 using a welding process. After the welding is correct, the bracket positioning pin 3 used for positioning is removed, and the device positioning pin 5 is also removed. Then, the suspension toolbox mounting bracket positioning device is taken out by firmly grasping the handle 2 with both hands and gently moving towards the position of the first frame beam 9.
[0028] The working principle in this embodiment is as follows: The operator firmly grasps the handle 2 with both hands and places the suspension toolbox mounting bracket positioning device on the frame beam, aligning the device positioning pin 5 with the pin hole on the fourth frame beam 12 to achieve pin hole positioning between the suspension toolbox mounting bracket positioning device and the frame beam. Then, firmly grasp the handle 2 with both hands and gently rotate the suspension toolbox mounting bracket positioning device so that the device positioning block 8 installed on the L-shaped connecting block 7 is tightly attached to the second frame beam 10 and the third frame beam 11 respectively, and begins to fix the threaded device positioning pin 5. The edge positioning between the suspension toolbox mounting bracket positioning device and the frame beam is achieved by adjusting the adjusting shim.
[0029] The workers placed the mounting bracket 13 on the second frame beam 10 and the fourth frame beam 12. They then inserted the bracket positioning pin 3 into the face positioning block 4 through the pin holes on the mounting bracket 13. By adjusting the shims, they ensured that the back of the mounting bracket 13 was tightly against the face positioning block 4 and the side was tightly against the bracket positioning block 6. After adjustment, they used welding to install the mounting bracket 13 on the second frame beam 10 and the fourth frame beam 12. They then removed the bracket positioning pin 3 and the device positioning pin 5. Finally, they held the handle 2 firmly with both hands and gently removed the mounting bracket positioning device from the suspension toolbox towards the position of the first frame beam 9.
[0030] By repeating the above process, the mounting bracket on the other side of the bottom of the frame can be positioned and installed. When installing the mounting bracket on the other side, the adjusting shims should not be moved to ensure the relative positional accuracy of the two suspension toolboxes on the frame beam and the positional accuracy of the suspension toolboxes on the frame.
[0031] In summary, this device can achieve the relative positional accuracy of the two suspended toolboxes at the bottom of the frame and the positional accuracy of the suspended toolboxes on the frame. In addition, since this device can be detached from the frame after positioning, it can be used continuously.
[0032] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A suspended tool box mounting bracket positioning device, characterized by, include: Main structure (1); The device positioning mechanism provided on the main structure (1) includes a device positioning pin (5), an L-shaped connecting block (7) and a device positioning block (8). The fourth frame beam (12) is provided with mounting holes corresponding to the device positioning pin (5). The device positioning mechanism and the frame beam are positioned by the device positioning pin (5) cooperating with its corresponding mounting holes. The device positioning mechanism is adjusted so that the device positioning block (8) installed on the L-shaped connecting block (7) is tightly attached to the second frame beam (10) and the third frame beam (11) respectively. And a bracket positioning mechanism provided on the main structure (1), which includes a bracket positioning block (6) and a surface positioning block (4). Each surface positioning block (4) is equipped with a bracket positioning pin (3). Each bracket positioning block (6), surface positioning block (4) and bracket positioning pin (3) form a "one side, one side, one pin" positioning method to realize the precise positioning of the mounting bracket (13) on the second frame beam (10) and the fourth frame beam (12).
2. A suspended tool box mounting bracket positioning device as defined in claim 1, wherein, The L-shaped connecting blocks (7) are respectively located on both sides of the main structure (1).
3. A suspended tool box mounting bracket positioning device as defined in claim 2, wherein, The device positioning block (8) is mounted on the L-shaped connecting block (7) by means of adjusting shims.
4. A tool box mounting bracket positioning device according to claim 3, wherein The device positioning pin (5) is provided with threads that match the mounting hole.
5. A suspended tool box mounting bracket positioning device according to any one of claims 1-4, wherein, The bracket positioning block (6), the surface positioning block (4), and the main structure (1) are connected by adjusting shims.
6. A suspended tool box mounting bracket positioning device according to any one of claims 1-4, wherein, The main structure (1) is a frame structure, and a handle (2) is provided on it.
Citation Information
Patent Citations
Chassis suspension support positioning device
CN217514954U