Welding structure and vehicle door
By setting up support protrusions outside the welding area of the car window frame and inner plate to form a predetermined gap, the welding melt residual height and burr problems are solved, the flatness and assembly efficiency of the window frame are improved, and the assembly cost is reduced.
Patent Information
- Application Number
- CN202420947781.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the automobile manufacturing process, when laser deep melt welding window frames and inner plates, the welding melt is prone to excessive residual height and a large number of splash burrs, affecting the flatness of the window frame and the finish of the stop edges, and thus affecting the installation accuracy of functional parts or decorative parts. In order to ensure installation, grinding is often required, which increases labor and time costs, and may damage the door and window frames.
By providing at least two supporting protrusions on the first and second plates, they are spaced between the two and outside the welding area, a predetermined gap is formed in the welding area to accommodate the welding melt, and the formation of residual height and splash burrs are avoided.
It effectively improves the processing accuracy of the end edges of the door and window frames, facilitates the installation of functional parts or decorative parts such as water cutting strips and seal strips, improves the assembly efficiency of the car, and reduces assembly costs.
Smart Images
Figure CN222905264U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of automobile assembly, and particularly to a welding structure and a car door. Background Art
[0002] In the process of automobile manufacturing, due to the demand for weight reduction, aluminum plates are widely used to replace steel plates, and aluminum car doors are widely adopted by major automobile companies. The stop edge of the aluminum car window frame is mostly formed by laser welding process.
[0003] Currently, there is usually a need to install functional parts or decorative parts such as water cut strips and sealing strips on the stop edge of the car window frame, which puts forward higher requirements for the processing accuracy of the stop edge of the car window frame.
[0004] However, currently, the overlap structure between the window frame and the inner panel usually adopts a zero-lap structure. During the process of laser deep penetration welding of the window frame and the inner panel, on the surface of the weld, the welding melt usually forms an excessive reinforcement height and a large number of spatter burrs, which will greatly affect the flatness of the window frame and the smoothness of the stop edge, and further affect the installation accuracy of functional parts or decorative parts such as water cut strips and sealing strips. Even in order to install functional parts or decorative parts such as water cut strips and sealing strips in place, it is necessary to grind the surface of the window frame, which not only consumes a large amount of labor costs and time costs, affects the automobile assembly efficiency, but also is extremely easy to damage the car window frame during the grinding process, reducing the yield rate, and the dust spatter during the grinding process has a greater impact on the automobile assembly environment. Summary of the Utility Model
[0005] The purpose of the present application is to provide a welding structure and an automobile, so as to solve to a certain extent the technical problem existing in the prior art that the overlap structure between the current window frame and the inner panel usually adopts a zero-lap structure. During the process of laser deep penetration welding of the window frame and the inner panel, on the surface of the weld, the welding melt usually forms an excessive reinforcement height and a large number of spatter burrs, which will greatly affect the flatness of the window frame and the smoothness of the stop edge, and further affect the installation accuracy of functional parts or decorative parts such as water cut strips and sealing strips. Even in order to install functional parts or decorative parts such as water cut strips and sealing strips in place, it is necessary to grind the stop edge, which not only consumes a large amount of labor costs and time costs, affects the automobile assembly efficiency, but also is extremely easy to damage the car window frame during the grinding process, reducing the yield rate, and the dust spatter during the grinding process has a greater impact on the automobile assembly environment.
[0006] According to the first aspect of the present application, a welding structure is provided, including a first plate member, a second plate member and at least two support protrusions. At least a part of the first plate member overlaps with at least a part of the second plate member in a first direction, and a welding area is provided inside the overlapping part of the first plate member and the second plate member.
[0007] The supporting protrusions are fixedly arranged on the first plate member and / or the second plate member. At least two of the supporting protrusions are arranged at intervals between the first plate member and the second plate member, and the supporting protrusions are arranged outside the welding area, so as to form a predetermined gap between the first plate member and the second plate member within the welding area.
[0008] Preferably, the size of the predetermined gap in the first direction is greater than 0.1 mm;
[0009] The size of the predetermined gap in the first direction is less than 0.2 mm.
[0010] Preferably, all the supporting protrusions are arranged on the first plate member.
[0011] Preferably, the supporting protrusions and the first plate member are integrally formed.
[0012] Preferably, the supporting protrusions are configured as structures formed by stamping the first plate member.
[0013] Preferably, the surface of the supporting protrusion is a spherical surface.
[0014] Preferably, the radius of the spherical surface is 5 mm to 10 mm.
[0015] Preferably, the welding area is strip-shaped, and the supporting protrusions are arranged at both ends in the extending direction of the welding area.
[0016] According to a second aspect of the present application, a vehicle door is provided, including the welding structure described in any of the above technical solutions. Therefore, it has all the beneficial technical effects of this welding structure, and will not be elaborated herein.
[0017] Preferably, it further includes a window frame and an inner panel;
[0018] The first plate member is the inner panel, and the second plate member is the window frame;
[0019] Or, the first plate member is the window frame, and the second plate member is the inner panel.
[0020] Compared with the prior art, the beneficial effects of the present application are:
[0021] The welding structure provided by the present application, when the first plate and the second plate are welded via the welding area, at least two supporting protrusions are arranged on the first plate and / or the second plate, so that the at least two supporting protrusions are arranged between the first plate and the second plate at intervals, and are arranged outside the welding area, so that a predetermined gap is formed between the first plate and the second plate in the welding area under the premise that the supporting protrusions do not interfere with the welding in the welding area. In this way, the welding molten material generated by the first plate and the second plate during the welding process can be effectively accommodated through the predetermined gap, thereby avoiding the excessive excess height and splashing burrs of the welding molten material affecting the flatness and smoothness of the first plate and the second plate, effectively improving the processing accuracy of the stop edge of the door and window frame, facilitating the installation of functional parts or decorative parts such as water-cut strips and sealing strips, improving the automobile assembly efficiency, and reducing the assembly cost.
[0022] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 A schematic diagram of a partial structure of a vehicle door provided in an embodiment of the present application;
[0025] Figure 2 A schematic diagram of a cutaway structure obtained by cutting the door structure provided by an embodiment of the present application along the AA direction;
[0026] Figure 3 A schematic diagram of the side view of the welding structure provided in an embodiment of the present application;
[0027] Figure 4 A schematic top view of the welding structure provided in an embodiment of the present application.
[0028] Reference numerals:
[0029] 1-supporting protrusion; 10-welding area; 11-welding melt; 12-predetermined gap;
[0030] 2- first plate;
[0031] 3- Second plate.
[0032] F1-first direction; F2-second direction; F3-third direction. Detailed implementation manners
[0033] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.
[0034] Generally, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application.
[0035] All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.
[0036] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.
[0037] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0038] Next, refer to Figures 1 to 4 Describe the welding structure and the vehicle door according to some embodiments of the present application.
[0039] See Figures 1 to 4As shown in the figure, an embodiment of the first aspect of the present application provides a welding structure, which includes a first plate member 2, a second plate member 3, and at least two support protrusions 1. At least a part of the first plate member 2 overlaps at least a part of the second plate member 3 in the first direction F1, and a welding area 10 is provided within the overlapping part of the first plate member 2 and the second plate member 3. The support protrusions 1 are fixedly arranged on the first plate member 2 and / or the second plate member 3. At least two support protrusions 1 are arranged at intervals between the first plate member 2 and the second plate member 3, and the support protrusions 1 are arranged outside the welding area 10, so that a predetermined gap 12 is formed between the first plate member 2 and the second plate member 3 within the welding area 10.
[0040] For the welding structure provided according to the above technical features, in the state where the first plate member 2 and the second plate member 3 are welded via the welding area 10, by arranging at least two support protrusions 1 on the first plate member 2 and / or the second plate member 3, at least two support protrusions 1 are arranged at intervals between the first plate member 2 and the second plate member 3 and are arranged outside the welding area 10. On the premise of ensuring that the support protrusions 1 do not interfere with the welding of the welding area 10, a predetermined gap 12 is formed between the first plate member 2 and the second plate member 3 within the welding area 10. In this way, the welding melt 11 generated during the welding of the first plate member 2 and the second plate member 3 can be effectively accommodated through the predetermined gap 12, thereby avoiding the excessive bead height and splash burrs of the welding melt 11 from affecting the flatness and smoothness of the first plate member 2 and the second plate member 3, effectively improving the processing accuracy of the rabbet edge of the car door window frame, facilitating the installation of functional parts or decorative parts such as water cut strips and sealing strips, improving the automobile assembly efficiency, and reducing the assembly cost.
[0041] Preferably, both the first plate member 2 and the second plate member 3 are aluminum plates.
[0042] As Figures 2 to 4 shown in the figure, F1 in the figure shows an example of the above-mentioned first direction. For the convenience of description, two directions intersecting each other on a plane perpendicular to the first direction F1 are defined as the second direction F2 and the third direction F3. F2 in the figure shows an example of the above-mentioned second direction, and F3 in the figure shows an example of the above-mentioned third direction. Preferably, the second direction F2 and the third direction F3 are perpendicular to each other.
[0043] It should be noted that taking laser welding as an example of the welding method, the above-mentioned welding melt 11 can be understood as a molten metal mixture formed by melting the first plate member 2 and the second plate member 3 during the welding process.
[0044] Preferably, the size of the above-mentioned predetermined gap 12 in the first direction F1 (i.e. Figure 2 and Figure 3The D value shown in [figure] can be greater than 0.1 mm. From a large amount of assembly test data, it can be known that when the predetermined gap 12 is greater than 0.1 mm, the predetermined gap 12 can have sufficient space to accommodate the above-mentioned welding filler metal 11. Furthermore, the predetermined gap 12 can effectively improve the influence of the reinforcement height, spatter, and burr on the flatness and smoothness of both the first plate member 2 and the second plate member 3.
[0045] Preferably, the dimension of the above-mentioned predetermined gap 12 in the first direction F1 (i.e., Figure 2 and Figure 3 the D value shown in [figure]) can be less than 0.2 mm. From a large amount of assembly test data, it can be known that when the predetermined gap 12 exceeds 0.2 mm, the probability of other welding defects (such as lack of welding and missed welding, etc.) occurring in the welding area 10 will increase significantly. Furthermore, keeping the above-mentioned predetermined gap 12 less than 0.2 mm can effectively reduce the welding rejection rate.
[0046] Preferably, the dimension of the above-mentioned predetermined gap 12 in the first direction F1 (i.e., Figure 2 and Figure 3 the D value shown in [figure]) can be 0.15 mm. However, it is not limited thereto. The above-mentioned D value can also be 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, etc.
[0047] Preferably, as shown in Figure 2 and Figure 3 the above-mentioned supporting protrusions 1 can be all arranged on the first plate member 2 to facilitate saving the processing procedures of the second plate member 3.
[0048] Optionally, the above-mentioned supporting protrusions 1 can be all arranged on the second plate member 3 to facilitate saving the processing procedures of the first plate member 2.
[0049] It should be noted that if the saving of processing procedures is not considered, both the first plate member 2 and the second plate member 3 can be provided with the above-mentioned supporting protrusions 1.
[0050] The following will take Figure 2 and Figure 3 the case where the supporting protrusions 1 shown are all arranged on the first plate member 2 as an example for detailed description.
[0051] Preferably, the above-mentioned supporting protrusions 1 and the first plate member 2 can be integrally formed to ensure the connection strength between the supporting protrusions 1 and the first plate member 2.
[0052] Preferably, as shown in Figure 2 and Figure 3 the above-mentioned supporting protrusions 1 can be constructed as a structure formed by stamping the first plate member 2, which can not only simplify the processing procedures of the supporting protrusions 1, but also improve the consistency of batch processing of the supporting protrusions 1.
[0053] It should be noted that the above-mentioned supporting protrusion 1 is not limited to the structure formed by stamping the first plate member 2. As long as the accuracy of the supporting protrusion 1 can be ensured, the above-mentioned supporting protrusion 1 can also be a protrusion attached to the surface of the first plate member 2. For example, the supporting protrusion 1 can also be a protrusion formed on the surface of the first plate member 2 by welding means. Another example is that the above-mentioned supporting protrusion 1 can also be a structure integrally extruded or integrally cast with the first plate member 2.
[0054] Preferably, as Figures 2 to 4 shown, the surface of the above-mentioned supporting protrusion 1 can be a spherical surface, so as to reduce the wear of the supporting protrusion 1 during the assembly process of the first plate member 2 and the second plate member 3, which affects the accuracy of the above-mentioned predetermined gap 12, and also avoids scratching the first plate member 2 and the second plate member 3 during the assembly process of the first plate member 2 and the second plate member 3.
[0055] However, it is not limited to this. As long as the dimensional accuracy of the predetermined gap 12 formed by the supporting protrusion 1 can be ensured, the surface of the above-mentioned supporting protrusion 1 is not limited to a spherical surface, and can also be a cylindrical surface, a conical surface, other arc surfaces or other irregular surfaces.
[0056] Preferably, the radius of the above-mentioned spherical surface can be 5 mm to 10 mm. In other words, the above-mentioned supporting protrusion 1 can be formed by stamping the side of the first plate member 2 facing away from the second plate member 3 with a small ball having a ball radius of 5 mm to 10 mm, so that the range supported by the supporting protrusion 1 can effectively cover the above-mentioned welding area 10 (that is, the dimension of the supporting protrusion 1 in the third direction F3 is greater than or equal to the dimension of the welding area 10 in the third direction F3), so as to ensure that the predetermined gap 12 can cover the welding area 10.
[0057] In the embodiment, preferably, the above-mentioned welding area 10 is strip-shaped, as Figure 4 shown, the welding area 10 can extend along the second direction F2, so that when the welding structure provided by the present application is applied to the rabbet edge of the vehicle door and window frame, the welding area 10 can adapt to the narrow space of the rabbet edge. It should be noted that the above-mentioned welding area 10 can be understood as the weld mark area formed during the welding process.
[0058] Preferably, as Figure 4As shown, the above-mentioned support protrusion 1 can be arranged at both ends in the extending direction of the welding area 10. In this way, on the one hand, it ensures the effective support of the support protrusion 1 for the welding area 10; on the other hand, taking the first plate 2 and the second plate 3 as the inner panel and the window frame of the car door window respectively, during the assembly process of the inner panel and the window frame, a fixing fixture for fixing both the inner panel and the window frame is usually arranged on the window side (that is, at one end of the first plate 2 and the second plate 3 in the third direction F3). The support protrusion 1 arranged at both ends in the second direction F2 of the welding area 10 can effectively avoid the fixing fixture and effectively prevent the fixing fixture from affecting the predetermined gap 12.
[0059] See Figure 1 , the embodiment of the second aspect of the present application also provides a car door, including the welding structure described in any of the above embodiments. Therefore, it has all the beneficial technical effects of this welding structure and will not be elaborated here.
[0060] Preferably, the above-mentioned car door may include a window frame and an inner panel.
[0061] Preferably, the above-mentioned first plate 2 may be the inner panel, and the above-mentioned second plate 3 may be the window frame.
[0062] Optionally, the first plate 2 may be the window frame, and the second plate 3 may be the inner panel.
[0063] Preferably, both the above-mentioned window frame and the inner panel are made of aluminum.
[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A welding structure, characterized in that: The invention comprises a first plate, a second plate and at least two supporting protrusions, wherein at least a portion of the first plate overlaps with at least a portion of the second plate in a first direction, and a welding area is provided in a portion where the first plate and the second plate overlap with each other; The support protrusion is fixedly arranged on the first plate and / or the second plate, at least two of the support protrusions are spaced between the first plate and the second plate, and the support protrusion is arranged outside the welding area so that a predetermined gap is formed between the first plate and the second plate in the welding area.
2. The welding structure according to claim 1, characterized in that: The size of the predetermined gap in the first direction is greater than 0.1 mm; A dimension of the predetermined gap in the first direction is less than 0.2 mm.
3. The welding structure according to claim 1, characterized in that: The supporting protrusions are all arranged on the first plate.
4. The welding structure according to claim 3, characterized in that: The supporting protrusion and the first plate are integrally formed.
5. The welding structure according to claim 4, characterized in that: The supporting protrusion is configured as a structure formed by punching the first plate member.
6. The welding structure according to claim 1, characterized in that: The surface of the supporting protrusion is a spherical surface.
7. The welding structure according to claim 6, characterized in that: The radius of the spherical surface is 5 mm to 10 mm.
8. The welding structure according to claim 1, characterized in that: The welding area is strip-shaped, and the supporting protrusions are arranged at two ends of the extending direction of the welding area.
9. A vehicle door, characterized in that: A welded structure comprising any one of claims 1 to 8.
10. The vehicle door according to claim 9, characterized in that: It also includes window frames and interior panels; The first plate member is the inner plate, and the second plate member is the window frame; Alternatively, the first panel is the window frame, and the second panel is the inner panel.