Suspended decorative cover structure based on forging and milling

Abstract

The invention belongs to the technical field of automobile parts, and particularly relates to a forging-milling-based suspension decorative cover structure which comprises a large cover plate and a suspension cover plate. The large cover plate comprises a large cover plate upper cover, a large cover plate base and screws, the large cover plate upper cover and the large cover plate base are connected through the screws, and the large cover plate base is connected with the wheels in a clamped mode. The suspension cover plate comprises a suspension cover transparent cover, a suspension cover LOGO, a suspension cover rotating shaft, a suspension cover balancing weight, a suspension cover bearing and a suspension cover base. According to the structural design thought of the suspension decorative cover based on forging and milling, the design defects of the metal suspension decorative cover can be overcome, strategies and technological means for coping with potential failure modes are provided, the failure rate of various problems such as fogging and overlarge swing angle is avoided or reduced, high-end texture and modeling can be achieved, and the application range of the suspension decorative cover is widened. Perfect matching of the wheel and the decorative cover is achieved, and the expectation of continuous growth of users and the market is met.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile accessories, and in particular relates to a suspended decorative cover structure based on forging and milling. Background Art

[0002] The car decorative cover, also known as the hub cover, is an important accessory on the car wheel. It can prevent dust and rust on the shaft head and bearing behind the wheel hub. It can also decorate the wheel, identify the car brand and make it beautiful. People's needs for cars are becoming more and more diverse and personalized. There are two main types of decorative covers on the market. One is fixed, and the logo and the wheel have no relative movement, and rotate with the rotation of the wheel; the other is suspended, and the logo does not rotate with the wheel, but swings around the wheel axis within a certain angle range similar to a tumbler, so that the logo can always face the observer to a certain extent when the vehicle is in motion. There is a trend of increasing such products on the market.

[0003] The floating decorative cover is an innovative technology applied to automobile wheels. Its design principle is that there is a bearing in the middle of the decorative cover, which can rotate around the axis. A counterweight is added inside the decorative cover to make the center of gravity at the lowest point of the decorative cover. When the wheel rotates or the vehicle is driving, the logo is in a vertical position to the ground to a certain extent. This design not only makes the vehicle look cooler, but also provides anti-rust, dust-proof, rain-proof and other functions, while keeping the logo relatively stable during high-speed driving.

[0004] At present, as the size of automobile tires and wheels is getting bigger and bigger, the diameter of decorative covers on the market is also increasing; with the continuous upgrading of user needs and the continuous involution of automobile manufacturers, decorative covers of various shapes are emerging in an endless stream, including metal floating decorative covers. However, due to design defects or quality control errors, various problems such as fogging and excessive swing angles of such decorative covers on the market occasionally occur, and serious ones also cause recalls within a certain range, which is a great loss for both automobile manufacturers and users.

[0005] There is a solution for a wheel suspension decorative cover, which consists of an outer shell and a buffer mechanism. The buffer mechanism includes a bearing, a first counterweight block rotating around the axis of the bearing, and a second counterweight block arranged in the first counterweight block, and the second counterweight block can reciprocate radially in the first counterweight block. Chinese patent CN 118144470 A discloses a new type of wheel hub suspension decorative cover, including an outer shell, a base, a through hole, a plug plate, a sign, an assembly groove, a wire ring, a buffer mechanism, a bearing, a first counterweight block, a first mounting groove, a second mounting groove, a second counterweight block, an elastic member, damping grease, a buckle, a block, a semi-cylindrical groove, a pin, an anti-slip texture, etc. This technology provides a detailed design solution, but cannot meet the market's increasing demand for metal shapes and large sizes of decorative covers, and does not provide strategies and process means to deal with potential failure modes. Summary of the invention

[0006] The purpose of the present invention is to provide a suspended decorative cover structure based on forging and milling, aiming to provide a structure that can meet the increasingly rich expectations of users and the market for decorative covers with metallic texture, large size, and diverse contour curvatures, while at the same time solving design defects, avoiding or reducing the failure rate of various problems such as fogging and excessive swing angles, improving vehicle quality, meeting user and market needs, and solving the problems existing in the above-mentioned background technology.

[0007] To achieve the above objectives, this application is implemented through the following technical solutions:

[0008] A suspended decorative cover structure based on forging and milling, comprising a large cover plate and a suspended cover plate; the large cover plate comprises a large cover plate upper cover, a large cover plate base and screws, the large cover plate upper cover and the large cover plate base are connected by screws, and the large cover plate base is connected to the wheel by clamping;

[0009] The floating cover plate includes a floating cover transparent cover, a floating cover LOGO, a floating cover rotating shaft, a floating cover counterweight, a floating cover bearing, and a floating cover base. The floating cover base is snap-connected to the large cover plate base, the outer ring of the floating cover bearing is interference fit with the floating cover base, the floating cover rotating shaft is interference fit with the inner ring of the floating cover bearing, the floating cover counterweight is installed on the floating cover rotating shaft, the floating cover LOGO is installed on the end face of the floating cover rotating shaft, and the floating cover transparent cover is connected to the floating cover base.

[0010] Furthermore, the large cover plate is made of a metal plate by using a forging and milling device, and the large cover plate has the same profile curvature as that of the matching wheel.

[0011] Furthermore, the large cover base is composed of an outer ring, an inner ring and a connecting part that is perpendicular to the outer ring and the inner ring. An inner clamping foot is provided on the inner side of the inner ring for clamping cooperation with the clamping foot of the floating cover base. Mounting holes are provided on the inner ring at equal intervals, and outer clamping feet are provided at equal intervals near the outer edge of the outer ring for clamping cooperation with the wheel.

[0012] Furthermore, the suspension cover base comprises a suspension cover base body, a bearing mounting hole is arranged on the suspension cover base body for mounting the suspension cover bearing, and a clamping foot of the suspension cover base is arranged on the outer side of the suspension cover base.

[0013] Furthermore, a circle of raised portions extending radially and axially is provided at the edge of the outer surface of the floating cover base body, and a circle of glue injection grooves is provided on the outer surface of the raised portions.

[0014] Furthermore, the suspension cover shaft includes a shaft body and a truncated cone portion fixedly connected to the end of the shaft body, the diameter of the truncated cone portion is larger than the diameter of the shaft body, and the shaft body is interference fit with the inner ring of the suspension cover bearing.

[0015] Furthermore, the suspension cover counterweight is formed by riveting a plurality of counterweight plates or integrally stamping the counterweight.

[0016] Furthermore, the transparent cover of the floating cover and the base of the floating cover are connected by ultrasonic welding, and the fitting width between the transparent cover of the floating cover and the base of the floating cover is 3-6mm.

[0017] Furthermore, the transparent cover of the floating cover and the base of the floating cover are sealed by using adhesive injected through the adhesive injection groove.

[0018] Furthermore, a suspension cover base clip is used to clamp the suspension cover base and the large cover base, and a large cover base clip is used to clamp the large cover base and the wheel.

[0019] The beneficial effects of the present invention are:

[0020] The scheme provides a design concept for the suspension decorative cover structure based on forging and milling, which can not only solve the design defects of the metal suspension decorative cover, but also provide strategies and process means to deal with potential failure modes, avoid or reduce the failure rate of various problems such as fogging and excessive swing angle, and achieve high-end texture and shape, realize the perfect match between wheels and decorative covers, and meet the expectations of users and the continuously growing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded view of the suspended decorative cover structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the counterweight block of the floating cover of the present invention.

[0023] Figure 3 It is a cross-sectional view of the suspended decorative cover structure of the present invention.

[0024] Figure 4 It is a cross-sectional view of the suspended decorative cover structure of the present invention from another direction.

[0025] Description of reference numerals:

[0026] 1. Transparent cover of floating cover; 2. LOGO of floating cover; 3. Rotating shaft of floating cover; 4. Counterweight of floating cover; 5. Bearing of floating cover; 6. Base of floating cover; 61. Clamping foot of base of floating cover; 62. Glue injection groove; 63. Ultrasonic welding; 7. Circlip of base of floating cover; 8. Upper cover of large cover; 9. Base of large cover; 91. External clamping foot; 92. Internal clamping foot; 10. Circlip of large cover; 11. Screws. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0028] See also Figures 1 to 4 As shown, the present application provides a floating decorative cover structure based on forging and milling. In this embodiment, the matching wheel is an aluminum alloy forged wheel (aluminum alloy T6061) for example. In order to meet the shape and enhance the appearance effect, the floating decorative cover is required to have a consistent appearance effect. Therefore, the large cover plate and the upper cover of the decorative cover are also made of aluminum alloy T6061, and the shape requirements for different contour curvatures are achieved through forging and milling.

[0029] In the present application, the floating decorative cover structure based on forging and milling is composed of a large cover plate and a floating cover plate, wherein the large cover plate includes a large cover plate upper cover 8, a large cover plate base 9, a large cover plate retaining spring 10 and a screw 11; the large cover plate upper cover 8 and the large cover plate base 9 are connected by screws 11, and the large cover plate base 9 is connected to the wheel by clamping. The floating cover plate includes a floating cover transparent cover 1, a floating cover LOGO2, a floating cover shaft 3, a floating cover counterweight 4, a floating cover bearing 5, a floating cover base 6 and a floating cover base retaining spring 7, the floating cover base 6 is connected to the large cover plate base 9 by clamping, the outer ring of the floating cover bearing 5 is interference fit with the floating cover base 6, the floating cover shaft 3 is interference fit with the inner ring of the floating cover bearing 5, the floating cover counterweight 4 is installed on the floating cover shaft 3, the floating cover LOGO2 is installed on the end face of the floating cover shaft, and the floating cover transparent cover 1 is connected to the floating cover base 6.

[0030] In this application, the large cover is a metal plate processed by forging and milling equipment, which is not suitable for large covers prepared by stamping with existing technology, and the large cover has the same profile curvature as the matching wheel. Since the mainstream wheels are made of cast A356 and forged T6061, the use of metal for the decorative cover can make it match the wheel and have a seamless styling. There are more and more low-drag wheels and wheels with plug-in, and different platform models often have wheels with different profile curvatures, which all lead to changes in the profile curvature of the decorative cover. Different profile curvatures can be easily achieved by forging and milling.

[0031] In the present application, the large cover base 9 is composed of an outer ring, an inner ring and a connecting portion perpendicular to the outer ring and the inner ring. An inner clamping foot 92 is provided on the inner side of the inner ring for clamping with the clamping foot 61 of the suspension cover base. Mounting holes are provided at equal intervals on the inner ring. External clamping feet 91 are provided at equal intervals near the outer edge of the outer ring for clamping with the wheel. The surface of the outer ring matches the large cover, and a circle of grooves is provided on the outer surface of the outer ring. A circle of protrusions is provided on the inner surface of the large cover at a position corresponding to the grooves. During assembly, the protrusions are inserted into the grooves to further ensure the fixed connection between the large cover and the large cover base.

[0032] During installation, screws are used to fix the large cover plate to the large cover plate base. Specifically, a circle of folded edge bosses extending inward is provided on the outer edge of the large cover plate near the center hole, and threaded holes corresponding to the mounting holes are provided on the folded edge, which are threadedly connected by screws. The outer clamping foot is clamped on the wheel, and then the large cover plate clamping spring is used to clamp it to prevent the large cover plate base from falling off the wheel.

[0033] In the present application, the floating cover base includes a floating cover base body, a bearing mounting hole is provided on the floating cover base body for mounting the floating cover bearing, a circle of glue injection groove 62 is provided on the outer surface of the floating cover base body near the edge, and the clamping foot of the floating cover base is provided on the outer side of the floating cover base. During installation, the clamping foot of the floating cover base on the floating cover base is aligned with the inner clamping foot of the large cover base, and then the clamping spring of the floating cover base is used for further clamping to prevent the floating cover base from falling off from the large cover base.

[0034] In the present application, a circle of protrusions extending radially and axially is provided at the outer edge of the floating cover base body, and a circle of glue injection grooves is provided on the outer surface of the protrusions. The protrusions are used to prevent the floating cover shaft from interfering with the floating cover transparent cover when rotating.

[0035] In the present application, the suspension cover shaft includes a shaft body and a truncated cone portion fixedly connected to the end of the shaft body. The diameter of the truncated cone portion is larger than the diameter of the shaft body, and the shaft body is interference fit with the inner ring of the suspension cover bearing. A suspension cover counterweight is installed on the shaft body so that the suspension cover LOGO does not rotate with the wheel, but is similar to a tumbler, always swinging around the wheel axis within a certain angle range, so that it can always face the observer to a certain extent when the vehicle is in motion. The form of the suspension cover counterweight can be riveted with multiple counterweight plates or stamped as a whole, and other methods can be used to adjust the parameters such as the size and weight of the counterweight to prevent the suspension cover LOGO from swinging too much.

[0036] In the present application, the floating cover transparent cover and the floating cover base are ultrasonically welded 63 or other processes that can play a fixing and sealing role, and a glue injection groove is added. The size of the glue injection groove is determined according to the corresponding glue injection equipment, tooling, and process size. The fitting width of the floating cover transparent cover and the floating cover base is controlled within 3-6mm (too wide affects the aesthetic appearance). The above process can enhance the airtightness effect, avoid or reduce the failure rate and appearance defects caused by poor airtightness such as fogging and infiltration of foreign matter.

[0037] In this embodiment, the assembly design route of the floating decorative cover based on forging and milling is that the transparent cover of the floating cover and the base of the floating cover are ultrasonically welded or other processes that can fix and seal the floating cover. The floating cover LOGO and the floating cover shaft are fixed by adhesive bonding and other methods. The floating cover counterweight block and the floating cover bearing are connected to the floating cover base through the limit design of the floating cover base and riveting and other methods. The large cover plate of the floating decorative cover and the wheel adopt an interference fit method of a clamping foot (the outer clamping foot of the large cover plate base) plus a retaining spring (the retaining spring of the large cover plate), and the entire circumference is designed as 5 fitting points; the upper cover of the large cover plate of the floating decorative cover and the large cover plate The base is fixed with screws, and the whole circumference is designed with 5 matching points; the large cover base of the floating decorative cover and the floating cover base adopt the interference fit method of the clamping foot (the inner clamping foot of the large cover base and the clamping foot of the floating cover base) plus the retaining spring (the retaining spring of the floating cover base), and the whole circumference is designed with 6 matching points; the number and layout of the matching points depend on the size, material, disassembly tooling of the interference fit partner, and the process and design experience of each manufacturer, and thus output reasonable installation force and pull-out force, ultimately ensuring convenience and no failure in test verification and user use scenarios. See the schematic cross-sectional view of the connection for details. Figure 3 and Figure 4 .

[0038] The above are preferred implementation modes of the present invention. The above show and describe the basic principles of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A suspended decorative cover structure based on forging and milling, characterized in that: It includes a large cover plate and a suspended cover plate; the large cover plate includes an upper cover plate, a base plate and screws; the upper cover plate and the base plate are connected by screws; the base plate is connected to the wheel by clamping; The floating cover plate includes a floating cover transparent cover, a floating cover LOGO, a floating cover rotating shaft, a floating cover counterweight, a floating cover bearing, and a floating cover base. The floating cover base is snap-connected to the large cover plate base, the outer ring of the floating cover bearing is interference fit with the floating cover base, the floating cover rotating shaft is interference fit with the inner ring of the floating cover bearing, the floating cover counterweight is installed on the floating cover rotating shaft, the floating cover LOGO is installed on the end face of the floating cover rotating shaft, and the floating cover transparent cover is connected to the floating cover base.

2. The forging and milling-based suspended decorative cover structure according to claim 1 is characterized in that: The large cover plate is made of a metal plate by using forging and milling equipment, and the contour curvature of the large cover plate is the same as that of the matching wheel.

3. The forging and milling-based suspended decorative cover structure according to claim 2 is characterized in that: The large cover base is composed of an outer ring, an inner ring and a connecting part that is perpendicular to the outer ring and the inner ring. An inner clamping foot is arranged on the inner side of the inner ring for clamping cooperation with the clamping foot of the floating cover base. Mounting holes are arranged at equal intervals on the inner ring, and outer clamping feet are arranged at equal intervals near the outer edge of the outer ring for clamping cooperation with the wheel.

4. The forging and milling-based suspended decorative cover structure according to claim 1 is characterized in that: The suspension cover base comprises a suspension cover base body, on which a bearing mounting hole is arranged for mounting the suspension cover bearing, and a clamping foot of the suspension cover base is arranged on the outer side of the suspension cover base.

5. The forging and milling-based suspended decorative cover structure according to claim 4 is characterized in that: A circle of raised parts extending radially and axially is arranged at the edge of the outer surface of the floating cover base body, and a circle of glue injection grooves is arranged on the outer surface of the raised parts.

6. The forging and milling-based suspended decorative cover structure according to claim 1, characterized in that: The suspension cover shaft comprises a shaft body and a truncated cone portion fixedly connected to the end of the shaft body. The diameter of the truncated cone portion is larger than the diameter of the shaft body. The shaft body is interference fit with the inner ring of the suspension cover bearing.

7. The forging and milling-based suspended decorative cover structure according to claim 1, characterized in that: The suspension cover counterweight is formed by riveting a plurality of counterweight plates or stamping the counterweight as a whole.

8. The forging and milling-based suspended decorative cover structure according to claim 5, characterized in that: The transparent cover of the floating cover and the base of the floating cover are connected by ultrasonic welding, and the fitting width of the transparent cover of the floating cover and the base of the floating cover is 3-6mm.

9. The forging and milling-based suspended decorative cover structure according to claim 8, characterized in that: The transparent cover of the floating cover and the base of the floating cover are sealed by using adhesive injected through the adhesive injection groove.

10. The forging and milling-based suspended decorative cover structure according to claim 1, characterized in that: A suspension cover base clip spring is used to clamp and connect the suspension cover base and the large cover plate base, and a large cover plate clip spring is used to clamp and connect the large cover plate base and the wheel.

Images