Servo hot riveting equipment for injection molding inner plate of automobile frame column
By designing a servo-assisted hot riveting welding mechanism and a servo-assisted hot riveting equipment for the injection-molded inner panel of the automotive frame column with a contoured bottom mold structure, the problems of low welding efficiency and inaccurate positioning were solved, achieving efficient and stable multi-station welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU ZHONGLI PARTS
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing hot riveting welding equipment has low welding efficiency, large equipment footprint, and the weld points are prone to misalignment. It is also difficult to adapt to automotive frame columns of different thicknesses, resulting in low processing flexibility and efficiency.
A servo hot riveting device for injection-molded inner panels of automotive frame columns was designed, comprising a servo hot riveting welding mechanism, a vertical servo drive structure, a contoured bottom mold structure, and a pneumatic locking component. Precise positioning and stable welding are achieved through the docking auxiliary component structure.
It improves welding precision and equipment versatility, ensuring the stability and efficiency of multi-station hot riveting welding, and adapting to the processing needs of workpieces of different thicknesses.
Smart Images

Figure CN224210575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive injection molding equipment, and in particular to a servo hot riveting device for injection molding inner panels of automotive frame pillars. Background Technology
[0002] Hot riveting welding machines (also known as hot riveting machines or hot melt machines, or hot melt riveting welding machines) are used to connect parts made of different materials, enabling thermosetting plastics to connect with hot melt plastic parts, or plastic parts to connect with metals. Hot riveting welding modifies or even melts the joint between the two metals by increasing the temperature.
[0003] Automobile frame pillars are numerous, and some of them require welding with many weld points. The area and shape of these weld points have strict requirements. Often, heating points need to be set in the template according to the product to be welded. After heating with electricity, a certain pressure is applied to complete the hot riveting welding. Existing hot riveting welding equipment has low welding efficiency and a large footprint. At the same time, changing the template can meet the hot riveting welding needs of various products to improve the versatility of the welding equipment. The use of an automatic mold-locking structure will greatly improve the template replacement efficiency. In the current hot riveting equipment, the welding mechanism and the bottom mold are prone to misalignment and weld point misalignment during the process. Furthermore, the thickness of automobile frame pillars varies, making it inconvenient for hot riveting welding equipment to fix the workpieces in multiple stations, thus reducing the flexibility and efficiency of the processing. Utility Model Content
[0004] The purpose of this invention is to provide a servo-driven hot riveting device for injection-molded inner panels of automotive frame columns, solving the problems of accurate docking and positioning of the hot riveting welding mechanism and the bottom mold mechanism, as well as the problem of firm workpiece positioning in the bottom mold mechanism.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a servo hot riveting device for injection-molded inner panels of automotive frame pillars, including a main frame structure and a servo hot riveting welding mechanism disposed in the main frame structure. The servo hot riveting welding mechanism includes a vertical servo drive structure disposed in the main frame structure, an upper hot riveting mechanism disposed below the vertical servo drive structure, a contour bottom mold structure disposed in the upper hot riveting mechanism, and an inner guide column structure disposed in the main frame structure and connected to the upper hot riveting mechanism. The upper hot riveting mechanism includes a linkage hot riveting platform connected to the vertical servo drive structure, a hot riveting component connecting inner frame disposed below the linkage hot riveting platform, a set of mirror-arranged hot riveting welding head assemblies disposed below the hot riveting component connecting inner frame, and a docking auxiliary component structure disposed outside each hot riveting welding head assembly.
[0006] The aforementioned docking auxiliary structure includes a vertical limiting seat located at the side end of the inner frame of the hot riveting connection, and an extended positioning spring rod located at the lower part of the vertical limiting seat that contacts the contour bottom mold structure.
[0007] A lateral extension seat is provided at the outer end of each vertical limiting seat, a bottom mold clamping head is provided at the outer end of the lateral extension seat, and an inner limiting block is provided at the lower part of the lateral extension seat.
[0008] The main frame structure includes a frame, an operating table in the frame, an inner guide seat on the upper part of the operating table for connecting the linkage hot riveting platform, and an operating interface, protective devices and warning lights on the outside of the frame.
[0009] The operating table is equipped with an outer contouring platform group and an inner contouring platform group contouring bottom mold structure, and each inner contouring platform group is equipped with a pneumatic locking component.
[0010] The beneficial effects of this utility model are as follows: This servo hot riveting welding machine can meet the precise positioning of hot riveting welding of products through the docking auxiliary component structure; thus realizing the effect of servo hot riveting welding of workpieces and ensuring the stable operation of hot riveting welding components. The pneumatic locking component of the contour bottom mold structure set in the servo hot riveting welding machine further ensures improved welding accuracy.
[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 Top view.
[0014] Figure 3 for Figure 1 The enlarged structural diagram shows the enlarged hot riveting mechanism.
[0015] Figure 4 for Figure 1 The enlarged structural diagram shows the connection between the hot riveting parts and the inner frame.
[0016] In the diagram: 1. Vertical servo drive structure, 2. Telescopic connecting seat, 3. Inner guide column structure, 4. Frame, 5. Operating table, 6. Inner guide seat, 7. Control interface, 8. Protective device, 9. Warning light, 10. Linked hot riveting platform, 11. Hot riveting component connecting inner frame, 12. Hot riveting welding head assembly, 13. Vertical limit seat, 14. Extending positioning spring rod, 15. Lateral extension seat, 16. Bottom mold clamping head, 17. Inner limit block, 18. Outer contouring table assembly, 19. Inner contouring table assembly, 20. Pneumatic locking component. Detailed Implementation
[0017] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Example 1, as Figure 1-4 As shown, a servo hot riveting device for injection-molded inner panels of automotive frame pillars includes a main frame structure and a servo hot riveting welding mechanism disposed in the main frame structure. The servo hot riveting welding mechanism includes a vertical servo drive structure 1 disposed in the main frame structure, an upper hot riveting mechanism disposed below the vertical servo drive structure, a contouring bottom mold structure disposed in the upper hot riveting mechanism, and an inner guide column structure 3 disposed in the main frame structure and connected to the upper hot riveting mechanism. The main frame structure includes a frame 4, an operating table 5 disposed in the frame, and an inner guide seat 6 disposed on the upper part of the operating table for balancing and linking the hot riveting platform. An operating interface 7, a protective device 8, and a warning light 9 are provided on the outside of the frame.
[0020] The aforementioned hot riveting mechanism includes a linkage hot riveting platform 10 connected to a vertical servo drive structure, a hot riveting component connecting inner frame 11 located at the lower part of the linkage hot riveting platform, a set of mirror-arranged hot riveting welding head assemblies 12 located at the lower part of the hot riveting component connecting inner frame, and a docking auxiliary component structure located on the outside of each hot riveting welding head assembly. The vertical servo drive structure 1 passes through the main frame structure and is connected to the telescopic connecting seat 2 on the upper part of the linkage hot riveting platform 10.
[0021] The docking auxiliary structure includes a vertical limiting seat 13 located at the side end of the inner frame of the hot riveting connection, and an extended positioning spring rod 14 located at the lower part of the vertical limiting seat and in contact with the contour bottom mold structure.
[0022] A lateral extension seat 15 is provided at the outer end of each vertical limiting seat, and a bottom mold clamping head 16 is provided at the outer end of the lateral extension seat. An inner limiting block 17 is also provided at the lower part of the lateral extension seat. The servo hot riveting welding machine can meet the precise positioning of the hot riveting welding of the product through the docking auxiliary component structure; thus realizing the effect of servo hot riveting welding of the workpiece, and also ensuring the stable operation of the hot riveting welding assembly.
[0023] The operating table is equipped with an outer contouring platform 18 and an inner contouring platform 19, forming a contouring bottom mold structure. Each inner contouring platform is equipped with a pneumatic locking component 20.
[0024] The pneumatic locking mechanism of the contour bottom mold structure in the servo hot riveting welding machine ensures further improvement in welding accuracy.
[0025] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
[0026] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
Claims
1. A servo-driven hot riveting device for injection-molded inner panels of automotive frame pillars, comprising a main frame structure and a servo-driven hot riveting welding mechanism disposed within the main frame structure, wherein the servo-driven hot riveting welding mechanism comprises a vertical servo drive structure disposed within the main frame structure, an upper hot riveting mechanism disposed below the vertical servo drive structure, a contouring bottom mold structure disposed within the upper hot riveting mechanism, and an inner guide column structure disposed within the main frame structure and connected to the upper hot riveting mechanism, characterized in that: The aforementioned hot riveting mechanism includes a linkage hot riveting platform connected to a vertical servo drive structure, a hot riveting component connecting inner frame located at the lower part of the linkage hot riveting platform, a set of mirror-arranged hot riveting welding head assemblies located at the lower part of the hot riveting component connecting inner frame, and a docking auxiliary component structure located on the outside of each hot riveting welding head assembly.
2. The servo-assisted hot riveting equipment for injection-molded inner panels of automotive frame pillars as described in claim 1, characterized in that: The aforementioned docking auxiliary structure includes a vertical limiting seat located at the side end of the inner frame of the hot riveting connection, and an extended positioning spring rod located at the lower part of the vertical limiting seat that contacts the contour bottom mold structure.
3. The servo-driven hot riveting equipment for injection-molded inner panels of automotive frame pillars as described in claim 2, characterized in that: A lateral extension seat is provided at the outer end of each vertical limiting seat, a bottom mold clamping head is provided at the outer end of the lateral extension seat, and an inner limiting block is provided at the lower part of the lateral extension seat.
4. The servo-driven hot riveting equipment for injection-molded inner panels of automotive frame pillars as described in claim 1, characterized in that: The main frame structure includes a frame, an operating table in the frame, an inner guide seat on the upper part of the operating table for connecting the linkage hot riveting platform, and an operating interface, protective devices and warning lights on the outside of the frame.
5. The servo-driven hot riveting equipment for injection-molded inner panels of automotive frame columns as described in claim 1, characterized in that: The operating table is equipped with an outer contouring platform group and an inner contouring platform group contouring bottom mold structure, and each inner contouring platform group is equipped with a pneumatic locking component.