Automobile pre-hasp matching assembly and automobile

Abstract

The utility model provides an automobile pre-hasp matching assembly and an automobile, the automobile pre-hasp matching assembly comprises a first automobile body structural part and a second automobile body structural part, the first automobile body structural part is provided with a pre-hasp, the second automobile body structural part is provided with an assembling hole, and the pre-hasp is a thermal forming soft area process part; the pre-hasp penetrates through the assembly hole and is bent towards the side deviating from the second vehicle body structural part, so that the first vehicle body structural part and the second vehicle body structural part are connected. According to the automobile pre-hasp matching assembly and the automobile, the pre-hasp is arranged to be the thermal forming soft area process part, so that the pre-hasp has good plasticity and toughness, the ductility of the pre-hasp is effectively improved, it can be guaranteed that the pre-hasp deforms sufficiently in the machining and pressing process, and the service life of the pre-hasp is prolonged. Therefore, the risk that the pre-hasp cracks or fractures is reduced, the pre-positioning precision of the first automobile body structural part and the second automobile body structural part is improved, and the assembling efficiency and the assembling quality of an automobile are improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile accessories, and in particular to an automobile pre-snap-fit ​​assembly and an automobile. Background Art

[0002] During the assembly process of the vehicle body, the inner panel of the vehicle side is usually pre-positioned by means of pre-fastening when it is assembled, so as to facilitate welding in subsequent processes.

[0003] At present, the pre-fastening structure is made of the same steel material as the vehicle body. The pre-fastening structure has low plasticity, toughness and elongation, and is prone to cracks or breakage during the bending and pressing process, resulting in low pre-positioning accuracy of parts during overall assembly, which can easily cause errors in subsequent workstations and affect the assembly efficiency and quality of the vehicle. Utility Model Content

[0004] In view of this, the present application provides an automobile pre-fastening fitting component and an automobile, which can reduce the risk of cracks or breakage of the pre-fastening.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, an embodiment of the present application provides an automobile pre-snap-on fitting component, the automobile pre-snap-on fitting component comprising a first body structure and a second body structure, the first body structure being provided with a pre-snap, the second body structure being provided with an assembly hole, the pre-snap being a thermoformed soft zone process part, the pre-snap passing through the assembly hole and being bent to a side away from the second body structure, thereby connecting the first body structure and the second body structure.

[0007] In an optional embodiment, the pre-fastener is an electromagnetic induction tempered metal part.

[0008] In an optional embodiment, the pre-buckle is integrally connected to the first vehicle body structure, and one end of the first vehicle body structure is extended to form the pre-buckle.

[0009] In an optional embodiment, an end portion of the first vehicle body structure is overlapped on a surface of a first end of the second vehicle body structure.

[0010] In an optional embodiment, the pre-fastener includes a connected connecting section and a folding section, the connecting section is used to be connected to the first body structure, and the angle between the extension plane of the folding section and the extension plane of the first end of the second body structure is less than 15°.

[0011] In an optional embodiment, the folded section at least partially abuts against the first end surface of the second vehicle body structural component.

[0012] In an optional embodiment, the folded section is in the shape of a flat plate and is parallel to the first end surface of the second vehicle body structural component.

[0013] In an optional embodiment, the connecting section is bent in an arc shape so that the folded section is smoothly connected to the first vehicle body structure component.

[0014] In an optional embodiment, the edge of the folded section is a smooth arc surface.

[0015] In a second aspect, an embodiment of the present application provides a car, comprising the car pre-snap-fit ​​assembly provided by any embodiment of the first aspect.

[0016] The beneficial effects of the technical solution provided in the embodiment of the present application include at least: by setting the pre-buckle as a hot-formed soft zone process part, the pre-buckle has better plasticity and toughness, effectively improving the elongation of the pre-buckle, and being able to ensure that the pre-buckle is sufficiently deformed during the processing and pressing process and bends to the side away from the second body structure, thereby reducing the risk of cracks or breakage of the pre-buckle, helping to improve the pre-positioning accuracy of the first body structure and the second body structure, thereby improving the assembly efficiency and assembly quality of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a pre-fastener in the prior art being broken during pressing;

[0019] Figure 2 A schematic diagram of the structure of a pre-fastening assembly for an automobile provided in an embodiment of the present application;

[0020] Figure 3 An exploded schematic diagram of a vehicle pre-snap-fit ​​assembly provided in an embodiment of the present application;

[0021] Figure 4 A partial enlarged view of the automotive pre-fastening fitting assembly provided in an embodiment of the present application when the pre-fastening is not pressed;

[0022] Figure 5 A partial cross-sectional view of a vehicle pre-snap-fit ​​assembly provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of an exploded view of a car provided in an embodiment of the present application.

[0024] The reference numerals in the figures respectively denote:

[0025] 1 - The first vehicle body structural member;

[0026] 2 - The second vehicle body structural member; 21 - Assembly hole;

[0027] 3 - Pre - buckle; 31 - Connection section; 32 - Folding section;

[0028] 100 - Left inner side panel assembly; 200 - Right inner side panel assembly; 300 - Lower vehicle body assembly.

[0029] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Regarding the orientation terms involved in the embodiments of the present application, such as "upper", "lower", "side", etc., generally, the relative relationship of the orientation shown in Figure 1 is used as a reference, and the use of these orientation terms is only to more clearly describe the relationship between structures and structures, rather than to describe the absolute orientation. When the product is placed in different postures, the orientation may change. For example, "upper" and "lower" may be interchanged.

[0032] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meaning as commonly understood by those of ordinary skill in the art. Some technical terms that appear in the embodiments of the present application are described below.

[0033] To make the technical solutions and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail in conjunction with the drawings.

[0034] During the assembly process of the vehicle body, when the inner side panel assemblies of the vehicle sides are assembled together, pre - buckles are usually used for pre - positioning to facilitate welding in subsequent processes.

[0035] Currently, the pre - buckle structure is made of steel material consistent with the vehicle body, and the plasticity, toughness and elongation rate of the pre - buckle structure are relatively low. For example, Figure 1As shown, the pre-fastener 3 of the automobile side inner panel assembly in the prior art is prone to cracks or breakage during the bending and pressing process, resulting in low pre-positioning accuracy of parts during assembly, which is prone to cause errors in subsequent workstations and affects the assembly efficiency and quality of the automobile.

[0036] In order to solve the above-mentioned technical problems, an embodiment of the present application provides a vehicle pre-snap-on fitting assembly.

[0037] like Figure 2 and Figure 3 As shown, the automobile pre-snap fitting assembly provided in the embodiment of the present application includes a first body structure 1 and a second body structure 2, the first body structure 1 is provided with a pre-snap 3, the second body structure 2 is provided with an assembly hole 21, the pre-snap 3 is a hot-formed soft zone process part, the pre-snap 3 passes through the assembly hole 21 and is bent to the side away from the second body structure 2, thereby connecting the first body structure 1 and the second body structure 2.

[0038] Exemplarily, the automobile pre-snap-fit ​​component is a side panel inner panel assembly, the first vehicle body structure 1 is an A-pillar upper inner panel, and the second vehicle body structure 2 is an A-pillar lower inner panel.

[0039] For example Figure 6 As shown, the automobile includes a left side inner panel assembly 100, a right side inner panel assembly 200 and a lower body assembly 300. The left side inner panel assembly 100 and the right side inner panel assembly 200 are both automobile pre-snap-on fitting components provided in the embodiment of the present application. The pre-snap-on 3 is used for pre-positioning the left side inner panel assembly 100 and the right side inner panel before being assembled and welded with the lower body assembly 300.

[0040] Specifically, Figure 4 As shown in the figure, before the first body structure 1 and the second body structure 2 are assembled, the pre-fastener 3 is convex relative to one side surface of the first body structure 1 in the thickness direction, for example, the pre-fastener 3 is perpendicular to the extension plane of the first body structure 1, so that the pre-fastener 3 passes through the assembly hole 21 on the second body structure 2. Then, the pre-fastener 3 is pressed down by a bending device so that the pre-fastener 3 is as shown in the figure. Figure 2 As shown, it is bent toward the side away from the second body structure 2, so that the pre-fastener 3 is hooked with the second body structure 2, preventing the first body structure 1 and the second body structure 2 from moving along their thickness direction and extension direction, thereby limiting the first body structure 1 and the second body structure 2.

[0041] For example, the assembly hole 21 is a through hole on the second vehicle body structure 2. The assembly hole 21 may be rectangular, circular, elliptical or other shapes, for example Figure 2 As shown, the assembly hole 21 is a rectangular hole.

[0042] Further, the width of the assembly hole 21 is greater than the width of the pre-fastener 3, so that the pre-fastener 3 can pass through the assembly hole 21 and be pressed and bent. Optionally, the extension direction of the pre-fastener 3 is greater than the length of the assembly hole 21 to prevent the pre-fastener 3 from falling out of the assembly hole 21 after being pressed and bent.

[0043] The pre-fastener 3 is made of hot-formed steel, specifically, it is made by hot-forming soft zone process. For example, the pre-fastener 3 uses laser irradiation or in-mold heating to create the soft zone. The hot-forming soft zone process is a relatively mature processing technology in the prior art, and the application cost is controllable. The core of the hot-forming soft zone process is that, through special technical means, the same part is divided into different areas, namely hard areas and soft areas. The tensile strength and yield strength of the hard area are higher, while the tensile strength and yield strength of the soft area are relatively low. The hot-forming soft zone process enables the parts to have different strengths in different areas, thereby achieving the goal of lightweighting the vehicle while ensuring safety, while improving the safety performance of the vehicle.

[0044] By setting the pre-fastener 3 as a hot-formed soft zone process part, not only does it have higher production efficiency and a smaller heat-affected zone, it also helps to control production costs. At the same time, the pre-fastener 3 has higher strength and sufficient toughness and material elongation, so that the pre-fastener 3 meets the general ultra-high-strength steel standard, ensuring that the local structure of the pre-fastener 3 undergoes sufficient and stable deformation during the pressing process without generating cracks or fractures, thereby improving the pre-positioning accuracy between the first body structure part 1 and the second body structure part 2.

[0045] The automotive pre-fastener mating component of the technical solution provided in the embodiment of the present application, by setting the pre-fastener 3 as a hot-formed soft zone process part, makes the pre-fastener 3 have better plasticity and toughness, effectively improves the elongation of the pre-fastener 3, and can ensure that the pre-fastener 3 undergoes sufficient deformation during the processing and pressing process and bends to the side away from the second body structure 2, thereby reducing the risk of cracks or breakage of the pre-fastener 3, helping to improve the pre-positioning accuracy of the first body structure 1 and the second body structure 2, thereby improving the assembly efficiency and assembly quality of the automobile.

[0046] In a further embodiment, the pre-fastener 3 is an electromagnetic induction tempered metal part.

[0047] The electromagnetic induction tempering process is a heat treatment process that can accurately control the heating temperature, thereby achieving precise adjustment of the workpiece performance. Specifically, the electromagnetic induction tempering process heats the workpiece by electromagnetic induction heating and then performs tempering treatment. It can eliminate the internal stress generated by the workpiece during the quenching process, reduce the brittleness of the workpiece, and improve the toughness and plasticity of the workpiece.

[0048] In this embodiment, the pre - buckle 3 is processed by electromagnetic induction tempering process, which can further improve the local elongation rate of the hot - formed material. For example, the elongation rate of a general hot - formed part after forming is about 5%, while the elongation rate of the pre - buckle 3 provided in the embodiment of the present application is greater than or equal to 11%. Therefore, the plasticity and toughness of the pre - buckle 3 are effectively improved, which can ensure that the pre - buckle 3 is bent stably and fully during the pressing process without generating cracks or fractures.

[0049] In one embodiment, the pre - buckle 3 is integrally connected to the first vehicle body structural member 1, and one end of the first vehicle body structural member 1 extends to form the pre - buckle 3.

[0050] As Figure 3 shown, the pre - buckle 3 is located at the end edge of the first vehicle body structural member 1, and the end of the first vehicle body structural member 1 extends outward to form the pre - buckle 3.

[0051] By setting the pre - buckle 3 to be integrally connected to the first vehicle body structural member 1, the connection strength between the pre - buckle 3 and the first vehicle body structural member 1 can be improved, and the separation of the pre - buckle 3 from the first vehicle body structural member 1 can be avoided; setting the pre - buckle 3 at the end edge of the first vehicle body structural member 1 can achieve the cooperation between the pre - buckle 3 and the assembly hole 21 without affecting the overall performance of the automotive pre - buckle cooperation assembly.

[0052] In one embodiment, the end part of the first vehicle body structural member 1 partially overlaps on the surface of the first end of the second vehicle body structural member 2.

[0053] Specifically, the end region of the first vehicle body structural member 1 covers the surface of the first end of the second vehicle body structural member 2, causing the first vehicle body structural member 1 and the second vehicle body structural member 2 to overlap in the thickness direction, enhancing the connection stability between the first vehicle body structural member 1 and the second vehicle body structural member 2, and improving the strength and reliability at the connection of the first vehicle body structural member 1 and the second vehicle body structural member 2.

[0054] In a specific embodiment, the pre - buckle 3 includes a connected connection section 31 and a folding section 32. The connection section 31 is used to connect with the first vehicle body structural member 1, and the included angle between the extension plane of the folding section 32 and the extension plane of the first end of the second vehicle body structural member 2 is less than 15°.

[0055] As Figure 5 shown, one end of the connection section 31 is connected to the first vehicle body structural member 1, and the other end is connected to the folding section 32. The folding section 32 and the first vehicle body structural member 1 are respectively located on both sides of the second vehicle body structural member 2 in the thickness direction, thereby realizing the hook - up cooperation between the first vehicle body structural member 1 and the second vehicle body structural member 2.

[0056] In the prior art, the pre-fastener 3 has low plasticity and toughness, and is difficult to bend further, resulting in a large angle between the extension plane of the pre-fastener 3 and the second body structure 2. This not only makes it easy for the pre-fastener 3 to collide with other workpieces or bump against the operator, but also makes it easy for the pre-fastener 3 to detach from the second body structure 2, affecting the pre-positioning accuracy of the first body structure 1 and the second body structure 2.

[0057] In the automobile pre-snap fitting assembly provided in the embodiment of the present application, the angle between the extension plane of the folded section 32 and the extension plane of the first end of the second body structure 2 is less than 15°, thereby reducing the distance between the folded section 32 and the second body structure 2, thereby preventing the pre-snap 3 from colliding with other workpieces or causing bumps to the operator, and reducing the risk of the pre-snap 3 being detached from the second body structure 2, thereby improving the connection stability between the first body structure 1 and the second body structure 2.

[0058] Furthermore, at least a portion of the folded section 32 abuts against the first end surface of the second vehicle body structural component 2 .

[0059] The folded section 32 can be in point contact, line contact or surface contact with the first end surface of the second body structure 2, thereby limiting the second body structure 2 in the thickness direction to prevent the first body structure 1 and the second body structure 2 from moving along the thickness direction, so as to accurately position the first body structure 1 and the second body structure 2.

[0060] Furthermore, the folded section 32 is in a flat plate shape and is parallel to the first end surface of the second vehicle body structure 2 .

[0061] like Figure 5 As shown, the folded section 32 is parallel to the surface of the area where the assembly hole 21 in the second body structure 2 is located, which increases the bending degree of the pre-fastener 3, increases the contact area between the folded section 32 and the second body structure 2, and further improves the limiting effect on the first body structure 1 and the second body structure 2.

[0062] In one embodiment, Figure 5 As shown, the connecting section 31 is bent in an arc shape so that the folded section 32 is smoothly connected to the first vehicle body structure 1 .

[0063] This arrangement improves the connection stability and reliability between the folded section 32 and the first vehicle body structural component 1 , and prevents the connection section 31 from being broken.

[0064] In one embodiment, the edge of the folded section 32 is a smooth arc surface.

[0065] like Figure 2As shown, the ends of the folding section 32 are provided with round chamfers on both sides in the width direction, making the outer edge of the folding section 32 relatively smooth.

[0066] Through this setting, it is possible to prevent the pre-buckle 3 from scratching other automotive workpieces or operators, improving the safety of the automotive pre-buckle fitting assembly.

[0067] The embodiment of the present application also provides an automobile, which includes the automotive pre-buckle fitting assembly provided in any of the above embodiments.

[0068] As Figure 6 shown, the automobile includes a left inner panel assembly 100, a right inner panel assembly 200, and a lower body assembly 300. Both the left inner panel assembly 100 and the right inner panel assembly 200 are the automotive pre-buckle fitting assemblies provided in the embodiment of the present application.

[0069] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0070] Those skilled in the art will readily think of other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only considered exemplary.

[0071] It should be understood that the present application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An automotive pre-snap-fit ​​assembly, characterized in that: The automobile pre-snap-on assembly comprises a first body structure (1) and a second body structure (2), wherein the first body structure (1) is provided with a pre-snap-on (3), and the second body structure (2) is provided with an assembly hole (21), wherein the pre-snap-on (3) is a hot-formed soft zone process part, and the pre-snap-on (3) passes through the assembly hole (21) and is bent toward a side away from the second body structure (2), thereby connecting the first body structure (1) and the second body structure (2).

2. The automotive pre-snap-fit ​​assembly according to claim 1, characterized in that: The pre-fastener (3) is an electromagnetic induction tempered metal part.

3. The automotive pre-snap-fit ​​assembly according to claim 1, characterized in that: The pre-fastener (3) is integrally connected to the first vehicle body structure (1), and one end of the first vehicle body structure (1) extends to form the pre-fastener (3).

4. The automotive pre-snap-fit ​​assembly according to claim 1, characterized in that: The end portion of the first vehicle body structure (1) overlaps the surface of the first end of the second vehicle body structure (2).

5. The automotive pre-snap-fit ​​assembly according to claim 4, characterized in that: The pre-fastener (3) comprises a connected connecting section (31) and a folding section (32), wherein the connecting section (31) is used to be connected to the first vehicle body structure (1), and the angle between the extension plane of the folding section (32) and the extension plane of the first end of the second vehicle body structure (2) is less than 15°.

6. The automotive pre-snap-fit ​​assembly according to claim 5, characterized in that: The folded section (32) at least partially abuts against the first end surface of the second vehicle body structural component (2).

7. The automotive pre-snap-fit ​​assembly according to claim 6, characterized in that: The folded section (32) is in the shape of a flat plate and is parallel to the first end surface of the second vehicle body structural component (2).

8. The automotive pre-snap-fit ​​assembly according to claim 5, characterized in that: The connecting section (31) is bent in an arc shape so that the folded section (32) is smoothly connected to the first vehicle body structure (1).

9. The automotive pre-snap-fit ​​assembly according to claim 5, characterized in that: The edge of the folded section (32) is a smooth arc surface.

10. An automobile, characterized in that: The automobile comprises the automobile pre-snap-fit ​​assembly according to any one of claims 1 to 9.

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