Semitrailer suspension welding fixing device
By combining the frame and the precision positioning mechanism, efficient and accurate positioning of the semi-trailer suspension is achieved, solving the problem of complex suspension welding positioning in existing technologies and improving positioning efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANGSHAN FEICHI TRAILER MFG
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-01
AI Technical Summary
Existing technologies require frequent leveling and positioning corrections during the processing and welding of semi-trailer suspensions, resulting in lengthy and complex steps that affect overall efficiency.
By employing a frame and a precision positioning mechanism, and through the cooperation of linear tracks and limit rods, combined with the coordinated movement of the first and second positioning components, the suspension achieves efficient and precise positioning, simplifying the operation process.
It improves the efficiency and accuracy of suspension positioning, simplifies the operation steps, and enhances the positioning efficiency and stability before welding and fixing.
Smart Images

Figure CN224182404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of semi-trailer production, and in particular to a semi-trailer suspension welding and fixing device. Background Technology
[0002] The suspension is a crucial component connecting the chassis and the frame. The frame's support force, braking force, driving force, and so on are all transmitted through the suspension system. Furthermore, it can reduce the impact of rough roads on the vehicle and ensure vehicle stability, making it extremely important.
[0003] Currently, in the processing and welding of semi-trailer suspensions, the common practice is to first securely place the main frame of the semi-trailer on a support platform and raise it, and then precisely place multiple suspension components in their predetermined positions in sequence. This step involves using various measurement methods, such as string measurement, parallel measurement, and diagonal measurement, to ensure that the left-right, up-down, and front-back dimensions of the suspension are highly consistent. This level of precision requires repeated measurements to achieve before spot welding can be performed.
[0004] However, using this measurement method means that staff need to frequently perform leveling and positioning correction work, which is lengthy and complicated, and this undoubtedly restricts the overall efficiency of suspension welding fixation. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art.
[0006] Therefore, the purpose of this utility model is to propose a semi-trailer suspension welding and fixing device. By standardizing the semi-trailer through a frame and with the help of a precision positioning mechanism, the positioning of the suspension can be completed efficiently and accurately. The process is simple and clear, and the operation is intuitive and convenient, which greatly improves the efficiency of the suspension positioning work before fixing.
[0007] To achieve the above objectives, this utility model proposes a semi-trailer suspension welding and fixing device, comprising a frame and a positioning mechanism. The frame includes a linear track and a support frame. The linear track has a traveling wheel at its bottom and a slidable moving part on it. At least two support frames are arranged side-by-side. One side of each support frame has a limiting rod, and one side of the linear track has a limiting groove that cooperates with the limiting rod. One end of the limiting rod is movably embedded in the limiting groove. The positioning mechanism includes a first positioning element and a second positioning element. The first and second positioning elements are slidably mounted on the moving part and are respectively connected to a drive assembly. The first positioning element has a first positioning block, and the second positioning element has a second positioning block. The first and second positioning blocks are adjacent and symmetrically arranged.
[0008] In addition, the semi-trailer suspension welding fixing device proposed in the application may also have the following additional technical features:
[0009] Specifically, the movable component is provided with a first channel and a second channel, wherein the first channel and the second channel are located in the same vertical plane; a first positioning component is slidably disposed through the first channel, and a second positioning component is slidably disposed through the second channel.
[0010] Specifically, a first groove is provided on one side of the first positioning member, and a second groove is provided on one side of the second positioning member.
[0011] Specifically, the drive assembly includes a mounting base, two racks, and two meshing gears. The mounting base is disposed on the outer wall of the moving part. The two racks are respectively disposed in the first groove and the second groove, and each rack meshes with one of the gears. Each gear is movably connected to the mounting base via a shaft, one of which passes through the mounting base and is connected to a control element.
[0012] Specifically, the two gears are located between the two racks.
[0013] Specifically, a reinforcing plate is provided on the side of the linear track away from the support frame, and the moving part is slidably connected to the reinforcing plate.
[0014] Specifically, it also includes two side plates, which are located on both sides of the linear track and are connected to the reinforcing plate.
[0015] Specifically, both the first positioning block and the second positioning block are provided with multiple positioning end blocks.
[0016] Compared with the prior art, the beneficial effects of this application are:
[0017] 1. By standardizing the semi-trailer through the frame and using a precision positioning mechanism, the suspension positioning work can be completed efficiently and accurately. The process is simple and clear, and the operation is intuitive and convenient, which greatly improves the efficiency of the suspension positioning work before fixing.
[0018] 2. A mechanism is adopted in which the moving parts slide along a linear track to accurately calibrate the positions of multiple suspensions sequentially. Combined with the coordinated relative movement of the first and second positioning parts, rapid and accurate positioning of the suspensions is achieved, further accelerating the work process.
[0019] 3. During the installation of the support frame, the connection design between the limit rod and the linear track is cleverly utilized, forming a stable mutual constraint relationship between the two, thereby effectively ensuring the stability and reliability of the entire device.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0022] Figure 1 This is a schematic diagram of the structure of a semi-trailer suspension welding and fixing device according to an embodiment of the present invention;
[0023] Figure 2 This is a top view of a semi-trailer suspension welding and fixing device according to an embodiment of the present invention;
[0024] Figure 3 This utility model Figure 2 A schematic diagram of the cross-sectional structure at point AA.
[0025] As shown in the figure: 10. Linear track; 101. Moving part; 102. Limiting groove; 11. Reinforcing plate; 12. Side plate; 13. Traveling wheel; 20. Support frame; 21. Limiting rod; 30. Positioning mechanism; 31. First positioning part; 311. First positioning block; 312. First groove; 32. Second positioning part; 321. Second positioning block; 322. Second groove; 33. Positioning end block; 40. Drive assembly; 41. Mounting base; 42. Rack; 43. Gear; 50. Control part. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0027] The following description, in conjunction with the accompanying drawings, describes the semi-trailer suspension welding and fixing device according to an embodiment of the present invention.
[0028] like Figures 1-3 As shown, the semi-trailer suspension welding and fixing device of this utility model embodiment may include a frame (not shown in the figure) and a positioning mechanism 30.
[0029] The frame may include a linear track 10 and a support frame 20. The linear track 10 has wheels 13 at its bottom and a sliding member 101 slidably mounted on it, the moving member 101 being L-shaped. At least two support frames 20 are arranged side by side. One side of each support frame 20 has a limiting rod 21, and one side of the linear track 10 has a limiting groove 102 that cooperates with the limiting rod 21, with one end of the limiting rod 21 movably embedded in the limiting groove 102. A reinforcing plate 11 is provided on the side of the linear track 10 away from the support frame 20, and the moving member 101 is slidably connected to the reinforcing plate 11. It may also include two side plates 12, located on opposite sides of the linear track 10, and connected to the reinforcing plate 11.
[0030] It should be noted that the support frame 20 can support the main frame of the semi-trailer and can be used independently of the linear rail 10. The support frame 20 can support the main frame of the semi-trailer. When welding of the semi-trailer suspension is required, the linear rail 10 can be moved to the support frame 20 by the traveling wheels 13. The limit rod 21 is cleverly used to connect with the linear rail 10, and a stable mutual constraint relationship is formed between the two, which can limit the linear rail 10, thereby effectively ensuring the stability of the moving part 101 and the overall reliability.
[0031] The positioning mechanism 30 may include a first positioning element 31 and a second positioning element 32, wherein the first positioning element 31 and the second positioning element 32 are slidably disposed on the moving element 101, and are respectively connected to the driving assembly 40. The first positioning element 31 is provided with a first positioning block 311, and the second positioning element 32 is provided with a second positioning block 321. The first positioning blocks 311 and 321 are arranged adjacent to each other and symmetrically. Both the first positioning block 311 and the second positioning block 321 are provided with a plurality of positioning end blocks 33.
[0032] It should be noted that, in this embodiment, a space is formed between the first positioning block 311 and the second positioning block 321 specifically for the installation of the semi-trailer suspension. The distance between the first positioning member 31 and the second positioning member 32 can be adjusted by the drive component 40, so that the first positioning member 31 and the second positioning member 32 can move relative to each other, thereby accurately limiting and fixing the suspension between them.
[0033] It should be noted that the positioning end block 33 described in this embodiment can be made of elastic soft materials such as rubber or silicone, and can directly conform to the suspension surface to be fixed. The positioning end blocks 33 on the first positioning block 311 and the second positioning block 321 respectively contact the two sides of the suspension, effectively limiting the movement and significantly enhancing the stability of the suspension.
[0034] The movable component 101 is provided with a first channel and a second channel, wherein the first channel and the second channel are located in the same vertical plane. A first positioning component 31 is slidably disposed through the first channel, and a second positioning component 32 is slidably disposed through the second channel. A first groove 312 is formed on one side of the first positioning component 31, and a second groove 322 is formed on one side of the second positioning component 32.
[0035] The drive assembly 40 may include a mounting base 41, two racks 42, and two meshing gears 43. The mounting base 41 is disposed on the outer wall of the movable member 101. The two racks 42 are respectively disposed in the first groove 312 and the second groove 322, and each rack 42 meshes with the two gears 43. The two gears 43 are located between the two racks 42. Each gear 43 is movably connected to the mounting base 41 via a shaft, one of which passes through the mounting base 41 and is connected to the control member 50.
[0036] It should be noted that the control element 50 described in this embodiment can be controlled by mechanical means such as a motor, or by manual operation such as a handle. The forward and reverse rotation of the shaft can be easily controlled by the control element 50, thereby driving the gear 43 connected to it to rotate. The other gear 43 rotates in the opposite direction. The two gears 43 work together to push the two racks 42 to move in opposite directions synchronously, thereby realizing the relative movement function of the first positioning element 31 and the second positioning element 32.
[0037] Specifically, when welding the semi-trailer suspension, the operator first places the main frame securely on the two support frames 20, and then pushes the linear track 10 close to the support frame 20 through the traveling wheel 13 to ensure that the limit rod 21 is accurately inserted into the corresponding limit groove 102.
[0038] Next, the movable component 101 is moved to a suitable position on the linear track 10, precisely placing the suspension in the predetermined position on the main frame. Finally, the drive assembly 40 precisely adjusts the distance between the first positioning component 31 and the second positioning component 32, causing them to move relative to each other until the first positioning block 311 tightly clamps the suspension, achieving limiting and fixing. Following this process, the welding and fixing operations of multiple suspensions can be completed sequentially.
[0039] In summary, the semi-trailer suspension welding and fixing device of this application standardizes the semi-trailer through a frame and, with the help of a precise positioning mechanism, can efficiently and accurately complete the positioning work of the suspension. The process is simple and clear, and the operation is intuitive and convenient, which greatly improves the efficiency of the suspension positioning work before fixing.
[0040] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A semi-trailer suspension welding fixture, characterized by, Includes a frame and positioning mechanism (30), wherein, The frame includes a linear track (10) and a support frame (20), wherein, The linear track (10) is provided with a traveling wheel (13) at the bottom, and a movable part (101) is slidably provided on it; At least two support frames (20) are arranged side by side. A limiting rod (21) is provided on one side of the support frame (20). A limiting groove (102) that cooperates with the limiting rod (21) is provided on one side of the linear track (10). One end of the limiting rod (21) is movably embedded in the limiting groove (102). The positioning mechanism (30) includes a first positioning element (31) and a second positioning element (32), wherein, The first positioning member (31) and the second positioning member (32) are slidably disposed on the moving member (101), and both are connected to the driving assembly (40); The first positioning member (31) is provided with a first positioning block (311), and the second positioning member (32) is provided with a second positioning block (321). The first positioning block (311) and the second positioning member (32) are arranged adjacent to each other and symmetrically.
2. The semi-trailer suspension welding fixture of claim 1, wherein, The movable component (101) is provided with a first channel and a second channel, wherein, The first channel and the second channel are located in the same vertical plane; The first positioning member (31) is slidably disposed through the first channel, and the second positioning member (32) is slidably disposed through the second channel.
3. The semi-trailer suspension welding fixture of claim 2, wherein, The first positioning member (31) has a first groove (312) on one side, and the second positioning member (32) has a second groove (322) on one side.
4. The semi-trailer suspension welding fixture of claim 3, wherein, The drive assembly (40) includes a mounting base (41), two racks (42), and two meshing gears (43), wherein, The mounting base (41) is provided on the outer wall of the movable part (101); The two racks (42) are respectively disposed in the first groove (312) and the second groove (322), and respectively mesh with the two gears (43); Each of the gears (43) is movably connected to the mounting base (41) via a shaft, one of the shafts passing through the mounting base (41) and connected to a control element (50).
5. The semi-trailer suspension welding fixture of claim 4, wherein, The two gears (43) are located between the two racks (42).
6. The semi-trailer suspension welding fixture of claim 1, wherein, A reinforcing plate (11) is provided on the side of the linear track (10) away from the support frame (20), and the moving part (101) is slidably connected to the reinforcing plate (11).
7. The semi-trailer suspension welding fixture of claim 6, wherein, It also includes two side plates (12), which are located on both sides of the linear track (10) and are connected to the reinforcing plate (11).
8. The semi-trailer suspension welding and fixing device according to claim 1, characterized in that, Both the first positioning block (311) and the second positioning block (321) are provided with multiple positioning end blocks (33).