Riveting tool for automobile beam assembly
By designing a riveting fixture for automotive crossbeam assemblies, and using components such as bases, fixed seats, movable positioning seats, and clamping seats, the problem of inconsistent dimensions of the crossbeams in the vehicle frame assembly was solved, achieving high efficiency in riveting production and product consistency.
Patent Information
- Application Number
- CN202520481408.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In the existing technology, the width of the crossbeam of the frame assembly, the accuracy of the hole positions, and the difference in diagonal between the upper and lower connecting plates on the same side are inconsistent, resulting in low riveting production efficiency and poor product consistency.
A riveting fixture for automotive crossbeam assemblies was designed, including a base, a fixed seat, a movable positioning seat, a clamping seat, and a reinforcing beam. Through components such as G-clamps, positioning holes, positioning pins, and clamping bolts, the adjustable width and precise positioning of the crossbeam assembly can be achieved, making it suitable for riveting requirements of different sizes. The U-shaped reinforcing beam also prevents the base from deforming.
This achievement enabled adjustable width dimensions and precise positioning of hole concentricity in the crossbeam assembly, improving product quality and riveting efficiency, and ensuring the pass rate of key dimensions of the frame assembly.
Smart Images

Figure CN223970796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a riveting fixture for automobile crossbeam assembly. Background Technology
[0002] In vehicle manufacturing, to improve the production efficiency of frame assembly riveting and ensure the critical dimensions of the frame assembly, large commercial vehicle manufacturers primarily use ground support chains to support the frame assembly in assembly line production. However, due to differences in frame assemblies, important dimensions such as the width, hole accuracy, and diagonal difference of the upper / lower connecting plates on the same side vary among different crossbeam assemblies. Riveting fixtures are needed to ensure that these dimensions are within acceptable tolerances, effectively controlling crossbeam assembly dimensional deviations, guaranteeing product consistency, the pass rate of critical dimensions of the frame assembly, and riveting efficiency. Therefore, there is an urgent need to propose a crossbeam assembly riveting fixture. Utility Model Content
[0003] The purpose of this invention is to provide a riveting fixture for automotive crossbeam assemblies, addressing the shortcomings of existing technologies.
[0004] This utility model is achieved using the following technical solution:
[0005] A riveting fixture for an automotive crossbeam assembly includes a base. The upper end of the base is provided with a fixed seat and a movable positioning seat. The fixed seat and the movable positioning seat are respectively located at the left and right ends of the base. The fixed seat is fixedly connected to the base, and the movable positioning seat is movably connected to the base. The lower end of the base is provided with a reinforcing beam. The crossbeam assembly is disposed between the fixed seat and the movable positioning seat. The movable positioning seat is provided with a plurality of clamping seats.
[0006] Furthermore, both the fixed base and the movable positioning base are provided with a length positioning plate. The upper end of the length positioning plate is provided with a G-type clamp, and the two sides of the G-type clamp are provided with several positioning holes. The lower end of the length positioning plate is provided with a positioning pin.
[0007] Furthermore, the clamping seats include longitudinal clamping seats and transverse clamping seats. The left end of the movable positioning seat is provided with a limiting block, the right end of the movable positioning seat is provided with a longitudinal clamping seat, and the front or rear end of the movable positioning seat is provided with the transverse clamping seat. Both the longitudinal clamping seat and the transverse clamping seat are provided with clamping bolts.
[0008] Furthermore, an adjustment pad is provided between the longitudinal clamping seat, the transverse clamping seat and the movable positioning seat.
[0009] Furthermore, the reinforcing beam has a U-shaped structure.
[0010] Furthermore, the width between the length positioning plates of the fixed base and the movable positioning base is 785mm-790mm, and the crossbeam assembly is disposed between the length positioning plates of the fixed base and the movable positioning base, and is fixed by a G-type clamp.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects:
[0012] The crossbeam assembly is positioned between the movable positioning seat and the fixed seat to ensure the width of the crossbeam assembly and achieve adjustable width. The positioning holes of the length positioning plates of the movable positioning seat and the fixed seat are used as a reference to determine the concentricity of the crossbeam assembly holes and the consistency of the product. The positioning is accurate, the product quality is improved, and the riveting efficiency of the frame assembly is increased.
[0013] The movable positioning seat is movably connected to the base. The position of the movable positioning seat is adjustable through the longitudinal clamping seat and the transverse clamping seat, which is suitable for riveting work of crossbeam assemblies of different sizes.
[0014] A U-shaped reinforcing beam is installed at the bottom of the base to prevent bending deformation caused by stress. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a top view of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the left-side structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the connection structure between the G-type clamp and the length positioning plate of this utility model.
[0019] Figure Labels
[0020] 1. Fixed seat; 2. Moving positioning seat; 3. Limiting block; 4. Adjusting pad; 5. Clamping seat; 6. Base; 7. Reinforcing beam; 8. Clamping bolt; 9. Positioning pin; 10. G-clamp; 11. Length positioning plate; 12. Positioning hole. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, 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 some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0022] like Figures 1-4 As shown, a riveting fixture for an automotive crossbeam assembly includes a base 6. The upper end of the base 6 is provided with a fixed seat 1 and a movable positioning seat 2. The fixed seat 1 and the movable positioning seat 2 are respectively located at the left and right ends of the base 6. The fixed seat 1 is fixedly connected to the base 6, and the movable positioning seat 2 is movably connected to the base 6. The lower end of the base 6 is provided with a reinforcing beam 7. The crossbeam assembly is located between the fixed seat 1 and the movable positioning seat 2. The movable positioning seat 2 is provided with several clamping seats 5.
[0023] The movable positioning seat 2 is movably connected to the base 6. The position of the movable positioning seat 2 is adjustable through the longitudinal clamping seat and the transverse clamping seat, which is suitable for riveting work of crossbeam assemblies of different sizes.
[0024] Both the fixed base 1 and the movable positioning base 2 are provided with a length positioning plate 11. The upper end of the length positioning plate 11 is provided with a G-type clamp 10. The G-type clamp 10 is provided with several positioning holes 12 on both sides. The lower end of the length positioning plate 11 is provided with a positioning pin 9.
[0025] The positioning hole 12 is machined in one go using a horizontal machining center or coordinate boring machine to ensure the concentricity of the same functional hole positions on the length positioning plate 11.
[0026] Several clamping seats 5 include longitudinal clamping seats and transverse clamping seats. The left end of the movable positioning seat 2 is provided with a limiting block 3, the right end of the movable positioning seat 2 is provided with a longitudinal clamping seat, the front end or rear end of the movable positioning seat 2 is provided with a transverse clamping seat, and both the longitudinal clamping seat and the transverse clamping seat are provided with clamping bolts 8.
[0027] Adjustment pads 4 are provided between the longitudinal clamping seat, the transverse clamping seat and the movable positioning seat 2.
[0028] Reinforcing beam 7 is a U-shaped structure.
[0029] A U-shaped reinforcing beam 7 is provided at the lower end of the base 6 to prevent the base 6 from bending and deforming under stress.
[0030] The width between the length positioning plates 11 of the fixed seat 1 and the movable positioning seat 2 is 785mm-790mm. The crossbeam assembly is located between the length positioning plates 11 of the fixed seat 1 and the movable positioning seat 2 and is fixed by the G-type clamp 10.
[0031] The movable positioning seat 2 is placed between the limiting block 3 and the clamping seat 5. By adjusting the clamping bolt 8 of the longitudinal clamping seat, the adjusting shim 4 is pre-tightened. The adjusting shim 4 pushes the movable positioning seat 2, constraining the X-direction displacement of the crossbeam assembly. Then, the clamping bolt 8 of the transverse clamping seat is adjusted to tighten the movable positioning seat 2, constraining the Y-direction displacement of the crossbeam assembly.
[0032] First, insert the rivets into the upper / lower flanges of the crossbeam assembly, position them using the locating pin 9, and then tighten the movable locating seat 2. Finally, clamp the G-clamp to ensure the width and hole accuracy of the crossbeam assembly before riveting the upper / lower flange rivets.
Claims
1. A riveting tool for an automobile cross beam assembly, characterized by comprising: Including base (6), the base (6) upper end is equipped with fixed seat (1) and mobile positioning seat (2), the fixed seat (1) and mobile positioning seat (2) are respectively equipped in the left and right ends of the base (6), the fixed seat (1) is fixedly connected with the base (6), the mobile positioning seat (2) is movably connected with the base (6), the lower end of the base (6) is equipped with reinforced beam (7), the crossbeam assembly is arranged between the fixed seat (1) and mobile positioning seat (2);The mobile positioning seat (2) is equipped with several clamping seats (5).
2. The automotive cross-car beam assembly riveting tooling of claim 1, wherein, The fixed seat (1) and mobile positioning seat (2) are both equipped with length positioning plate (11), the upper end of the length positioning plate (11) is equipped with G type clamp (10), the both sides of the G type clamp (10) are equipped with several positioning holes (12), the lower end of the length positioning plate (11) is equipped with positioning pin (9).
3. The automotive cross-car beam assembly riveting tooling of claim 2, wherein, Several clamping seats (5) include longitudinal clamping seat and transverse clamping seat, the left end of the mobile positioning seat (2) is equipped with limit block (3), the right end of the mobile positioning seat (2) is equipped with longitudinal clamping seat, the front end or rear end of the mobile positioning seat (2) is equipped with the transverse clamping seat, the longitudinal clamping seat and transverse clamping seat are both equipped with clamping bolt (8).
4. The automotive cross-car beam assembly riveting tooling of claim 3, wherein, The longitudinal clamping seat and transverse clamping seat are both equipped with adjusting pad (4) between the longitudinal clamping seat and transverse clamping seat and the mobile positioning seat (2).
5. The automotive cross-car beam assembly riveting tooling of claim 1, wherein, The reinforced beam (7) is U-shaped structure.
6. The automotive cross-car beam assembly riveting tooling of claim 2, wherein, The width between the length positioning plate (11) of the fixed seat (1) and the mobile positioning seat (2) is 785mm-790mm, the crossbeam assembly is arranged between the length positioning plate (11) of the fixed seat (1) and the mobile positioning seat (2), and is fixed by G type clamp (10).