A fixed clamping structure, an automobile instrument panel and a mold thereof

Abstract

The present application relates to the technical field of vehicle engineering, and discloses a fixed clamping structure, an automobile instrument panel and a die thereof, which are used for mounting the automobile instrument panel to a body sheet metal, and the fixed clamping structure comprises a clamping jaw, the clamping jaw comprises a connecting seat and a clamping part, the connecting seat is arranged on the automobile instrument panel, the clamping part is arranged on the connecting seat, the clamping part has a clamping groove, the extension direction of the clamping groove is a second direction, a first reinforcing groove is arranged on the side of the connecting seat away from the clamping groove in a first direction, a second reinforcing groove is arranged on the side of the clamping part away from the automobile instrument panel, the first reinforcing groove and the second reinforcing groove are not communicated, and the clamping jaw is integrally formed by injection molding; wherein the first direction and the second direction are perpendicular to each other. The fixed clamping structure, the automobile instrument panel and the die thereof can increase the stability and deformation resistance of the fixed clamping structure, avoid additional welding structure, reduce the development and welding time of the welding structure, and reduce the production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a fixed clamping structure, an automobile instrument panel and a mold thereof. Background Art

[0002] As a key component in the driver's main field of view, the car dashboard must not only meet basic requirements such as structural strength, appearance quality and no abnormal noise, but also take into account the lightweight and energy efficiency optimization of components.

[0003] In existing designs, the dashboard is typically secured using a combination of a clip-on structure and a latch. Specifically, the clip-on structure is installed in a slot in the body sheet metal, while the back of the dashboard's front edge is secured to a reinforcement plate equipped with a latch through welding or other methods.

[0004] However, this traditional fixing method has some significant drawbacks. Due to the limited space within the body sheet metal structure, it's difficult to properly arrange the reinforcement plate and welded structure in the dashboard's front bumper area. Therefore, a more sophisticated structural design is required to ensure the instrument panel, reinforcement plate, and welded structure fit within the limited space. Furthermore, the use of reinforcement plates and welded structures requires specialized welding tooling and additional welding man-hours, significantly increasing production costs. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixed clamping structure, an automobile instrument panel and a mold thereof, which can increase the stability and deformation resistance of the fixed clamping structure, avoid the additional setting of welding structure, reduce the development of welding structure and welding hours, and reduce production costs.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A first aspect of the present invention provides a fixed clamping structure for mounting an automobile instrument panel to a vehicle body sheet metal, the fixed clamping structure comprising:

[0008] A claw, the claw comprising a connecting seat and a clamping portion, the connecting seat being disposed on the vehicle dashboard, the clamping portion being disposed on the connecting seat, the clamping portion having a clamping slot, the clamping slot extending in a second direction, a first reinforcement groove being formed on a side of the connecting seat facing away from the clamping slot in the first direction, and a second reinforcement groove being formed on a side of the clamping portion facing away from the vehicle dashboard, the first reinforcement groove being disconnected from the second reinforcement groove, and the claw being integrally formed by injection molding;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] Furthermore, the connecting seat includes a seat body, two first ribs and two second ribs, the seat body is arranged on the car dashboard, the two first ribs are arranged on the seat body at intervals along the second direction, the first rib is connected to the car dashboard near the outer edge of the car dashboard, the clamping portion is arranged between the two first ribs, the two second ribs are arranged on the seat body, the two second ribs and the seat body jointly define the first reinforcement groove, and the first rib and the second rib correspond to each other in the first direction.

[0011] Furthermore, the first rib includes a first plate body and a second plate body, the first plate body is connected to the car dashboard close to the outer edge of the car dashboard, and the first plate body is connected to the second plate body away from the outer edge of the car dashboard, and the thickness of the first plate body is 1 / 4-1 / 2 of the thickness of the car dashboard.

[0012] Furthermore, a guide block is provided on the slot wall close to the second reinforcement slot, and the guide block is located between the two first ribs. The guide block has a first guide surface, and the outer edge of the second plate body has a second guide surface.

[0013] Furthermore, when viewed along the second direction, the second plate partially covers the card slot.

[0014] Furthermore, the fixed clamping structure includes at least two clamping claws, which are arranged side by side along the second direction, one clamping claw is defined as a first clamping claw, and the clamping claw adjacent to the first clamping claw is defined as a second clamping claw, the first rib of the first clamping claw close to the second clamping claw and the first rib of the second clamping claw close to the first clamping claw are the same first rib, and the clamping parts of adjacent clamping claws are integrally formed.

[0015] The second aspect of the present invention provides a car dashboard, including the fixed clip structure, and the car dashboard also includes a main board body. Multiple fixed clip structures are arranged at intervals along the second direction on the front outer edge of the main board body, and a rib network is provided between two adjacent fixed clip structures.

[0016] Further, the rib network includes two first ribs, multiple second ribs, multiple third ribs and multiple fourth ribs, the two first ribs are arranged at intervals along the first direction, the first rib extends along the second direction, the two ends of the first rib are respectively connected to two adjacent fixed clamping structures, multiple second ribs are arranged at intervals along the second direction between the two first ribs, the second rib extends along the first direction, the third rib is arranged on one side of the two first ribs in the second direction, multiple third ribs are arranged at intervals along the second direction, the third rib extends along the first direction, the third rib and the second rib are staggered with each other, the fourth rib is arranged on the other side of the two first ribs in the second direction, multiple fourth ribs are arranged at intervals along the second direction, the fourth rib extends along the first direction, and the fourth rib corresponds to the third rib in the first direction.

[0017] A third aspect of the present application provides a mold for injection molding the automobile instrument panel, the mold comprising a panel, a hot runner plate, a cavity, a core, a core mold frame, a face needle plate, a bottom needle plate, and a bottom plate arranged sequentially from top to bottom, the mold comprising:

[0018] A tilting ejector assembly, the tilting ejector assembly being movably disposed on the core, the tilting ejector assembly having a first molding surface, the first molding surface being used to mold a portion of the main plate body and the first reinforcement groove;

[0019] The core-pulling assembly is movably arranged on the core, and the core-pulling assembly has a second molding surface, and the second molding surface is used to mold the slot and the gap formed by the adjacent first rib plate and the seat body.

[0020] Furthermore,

[0021] The inclined ejector assembly includes an inclined ejector block, an inclined ejector rod, an inclined ejector seat and a first driving member, the inclined ejector block is arranged between the core and the cavity, the inclined ejector block, the core and the cavity enclose a mold cavity, and the mold cavity is used for injection molding the automobile instrument panel, the inclined ejector seat is arranged on the bottom needle plate, the inclined ejector rod is tilted, one end of the inclined ejector rod is connected to the inclined ejector block, and the other end passes through the core, the core mold frame, the surface needle plate, the bottom needle plate and the inclined ejector seat in sequence and is connected to the power output end of the first driving member for driving the inclined ejector rod to slide along its axial direction, the first molding surface is arranged on the inclined ejector block, and the inclined ejector block also has a first inclined surface, and the first inclined surface is parallel to the axial direction of the inclined ejector rod;

[0022] The core pulling assembly includes a core pulling slider, a shovel, a second driving member and a slide seat. The core mold frame has a cavity, the slide seat is arranged in the cavity, and a slide seat is provided with a slide groove extending in a horizontal direction. The shovel is slidably arranged in the slide groove. The power output end of the second driving member is connected to the shovel, for driving the shovel to slide in the slide groove. The shovel has a second inclined surface. The first end of the core pulling slider abuts against the second inclined surface. The core pulling slider is placed at an angle. The second end of the core pulling slider passes through the core mold frame and the core in sequence and extends into the mold cavity. The second molding surface is arranged at the second end of the core pulling slider.

[0023] Compared with the prior art, the fixed clamping structure, automobile instrument panel and its mold in the embodiment of the present invention have the following beneficial effects: the connecting seat and the clamping part of the clamping claw are respectively provided with a first reinforcement groove and a second reinforcement groove, and the first reinforcement groove and the second reinforcement groove are not connected, which makes the clamping claw structure more complex, can effectively increase the structural strength of the fixed clamping structure, and improve the connection stability between the automobile instrument panel and the body sheet metal; the one-piece injection molding of the clamping claw simplifies the production process, avoids the additional setting of welding structure, reduces the development of welding structure and welding man-hours, reduces production costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a car instrument panel according to an embodiment of the present invention;

[0025] Figure 2 2 is a schematic structural diagram of a fixed clamping structure according to an embodiment of the present invention;

[0026] Figure 3 is a structural schematic diagram of the fixed clamping structure of an embodiment of the present invention from another angle;

[0027] Figure 4 is a cross-sectional view of a fixed clamping structure according to an embodiment of the present invention;

[0028] Figure 5 is a cross-sectional view of a mold according to an embodiment of the present invention;

[0029] Figure 6 yes Figure 5 A partial enlarged view of

[0030] Figure 7 1. It is an exploded view of the inclined ejector assembly and the core pulling assembly of the mold according to an embodiment of the present invention;

[0031] In the figure, 1. fixed clamping structure;

[0032] 2. Clamping claw; 21. Connecting seat; 211. First reinforcement groove; 212. Seat body; 213. First rib; 2131. First plate; 2132. Second plate; 21321. Second guide surface; 214. Second rib; 22. Clamping portion; 221. Second reinforcement groove; 222. Clamping groove; 223. Guide block; 2231. First guide surface;

[0033] 3. Main board;

[0034] 4. Reinforcement mesh; 41. First rib; 42. Second rib; 43. Third rib; 44. Fourth rib;

[0035] 5. Panel;

[0036] 6. Hot runner plate;

[0037] 7. Cavity;

[0038] 8. Core;

[0039] 9. Core mold frame; 91. Cavity;

[0040] 10. Noodle plate;

[0041] 11. Bottom needle plate;

[0042] 12. Bottom plate;

[0043] 13. Ejector assembly; 131. Ejector block; 1311. First molding surface; 1312. First inclined surface; 132. Ejector rod; 133. Ejector seat; 134. Guide sleeve;

[0044] 14. Core pulling assembly; 141. Core pulling slider; 142. Shovel; 143. Second driving member; 144. Slide seat;

[0045] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0046] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0047] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", "lateral", "longitudinal", etc. used to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and simplify the description. They are not intended to limit the indicated devices, elements, or components to having a specific direction, or to be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0048] In the description of the present invention, the terms "provided with," "disposed," "connected," and "placed" should be interpreted broadly. For example, they may refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0049] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0050] The technical solution of the present invention is further described below with reference to the embodiments and drawings.

[0051] like Figure 1-7 As shown, a first aspect of an embodiment of the present invention provides a fixed clamping structure for mounting a car dashboard to a car body sheet metal. The fixed clamping structure 1 includes:

[0052] The claw 2 includes a connecting base 21 and a clamping portion 22. The connecting base 21 is provided on the dashboard of the car. The clamping portion 22 is provided on the connecting base 21. The clamping portion 22 has a clamping slot 222. The clamping slot 222 extends in the second direction Y. In the first direction X, a first reinforcement groove 211 is formed on the side of the connecting base 21 away from the clamping slot 222. A second reinforcement groove 221 is formed on the side of the clamping portion 22 away from the dashboard of the car. The first reinforcement groove 211 and the second reinforcement groove 221 are not connected. The claw 2 is integrally formed by injection molding.

[0053] The first direction X and the second direction Y are perpendicular to each other.

[0054] Based on the above technical solution, the connecting seat 21 and the clamping part 22 of the clamping claw 2 are respectively provided with a first reinforcement groove 211 and a second reinforcement groove 221. The first reinforcement groove 211 and the second reinforcement groove 221 are not connected, which makes the structure of the clamping claw 2 more complex, and can effectively increase the structural strength of the fixed clamping structure 1, and improve the connection stability between the automobile dashboard and the body sheet metal; the one-piece injection molding of the clamping claw 2 simplifies the production process, avoids the additional setting of welding structure, reduces the development of welding structure and welding hours, reduces production costs, and improves production efficiency.

[0055] Preferably, the connecting seat 21 includes a seat body 212, two first ribs 213 and two second ribs 214. The seat body 212 is arranged on the car dashboard. The two first ribs 213 are arranged on the seat body 212 at intervals along the second direction Y. The first ribs 213 are connected to the car dashboard near the outer edge of the car dashboard. The clamping portion 22 is arranged between the two first ribs 213. The two second ribs 214 are arranged on the seat body 212. The two second ribs 214 and the seat body 212 jointly define a first reinforcement groove 211. The first ribs 213 and the second ribs 214 correspond to each other in the first direction X.

[0056] The provision of the first rib 213 and the second rib 214 can reduce the weight of the fixed clamping structure 1 while ensuring its strength, avoid unnecessary material accumulation, facilitate injection molding of the fixed clamping structure 1 and contribute to the overall lightweighting of the vehicle; the first rib 213 and the second rib 214 are both connected to the base 212 and have corresponding positions in the first direction X. During the injection molding process, the plastic first flows into the second rib 214, then converges to the base 212, and is finally distributed to the first rib 213, which can ensure the fluidity of the plastic and increase the qualified rate of the finished product of the fixed clamping structure 1.

[0057] More preferably, the first rib 213 includes a first plate body 2131 and a second plate body 2132, the first plate body 2131 is connected to the car dashboard near the outer edge of the car dashboard, and the first plate body 2131 is connected to the second plate body 2132 away from the outer edge of the car dashboard, and the thickness of the first plate body 2131 is 1 / 4-1 / 2 of the thickness of the car dashboard.

[0058] In a preferred embodiment, the thickness of the first plate 2131 is selected to be 1 / 3 of the thickness of the automobile instrument panel.

[0059] If the thickness of the first plate 2131 is less than 1 / 4 of the thickness of the automobile instrument panel, the first plate 2131 is too thin, which may easily lead to insufficient rigidity of the connecting seat 21 and easy bending and deformation under the action of external loads, thereby affecting the structural stability of the entire automobile instrument panel, negatively affecting the installation accuracy and matching effect of the automobile instrument panel, and being unable to effectively withstand the fixed installation between the automobile instrument panel and the body sheet metal. In addition, during the injection molding process, the plastic does not easily pass through the position of the first rib 213, and the plastic has insufficient fluidity, resulting in local incomplete filling or molding defects, ultimately affecting the product appearance and performance. If the thickness of the first plate 2131 is greater than 1 / 2 of the thickness of the automobile instrument panel, the first plate 2131 is too thick. Due to the thermal expansion characteristics of the plastic, it will shrink to a certain extent when cooling, resulting in unnecessary deformation of the first plate 2131 and the easy position shift of the clamping portion 22. In addition, an overly thick first plate 2131 requires more material, increases the difficulty of injection molding, and is prone to defects such as bubbles and sink marks, affecting the appearance quality and mechanical performance of the fixed clamping structure 1. The thickness of the first plate 2131 is 1 / 4-1 / 2 of the thickness of the car dashboard, so that the first plate 2131 can provide the necessary strength and stability, while avoiding the problem of excessive local stress caused by the first plate 2131 being too thick, which would cause shrinkage on the surface of the car dashboard, thereby achieving a balance between strength and surface quality.

[0060] Specifically, the thickness of the second plate 2132 is 2.5-4 mm, ensuring strength while reducing problems such as crushing and injection molding filling difficulties during assembly.

[0061] More preferably, a guide block 223 is provided on the wall of the slot 222 close to the second reinforcement slot 221 . The guide block 223 is located between the two first ribs 213 . The guide block 223 has a first guide surface 2231 . The outer edge of the second plate 2132 has a second guide surface 21321 .

[0062] In a specific embodiment, non-woven fabric is placed in the slot 222 .

[0063] In the second direction Y, the first guide surface 2231 and the second guide surface 21321 are arranged with offset intervals, allowing a wide tolerance range for the docking of the vehicle instrument panel and the body sheet metal during assembly. The flexibility of the non-woven fabric further increases this tolerance range, absorbing errors in the body sheet metal structure during assembly. As the vehicle expands and contracts with heat and external forces during use, the offset intervals and the non-woven fabric provide a certain degree of spatial compensation, allowing the clamping portion 22 to maintain a certain degree of flexibility during these changes, avoiding deformation, jamming, or damage caused by an overly tight fit. This improves the durability of the structure, especially under different environmental conditions. The offset intervals allow the clamping portion 22 to be naturally guided to the correct position during assembly, simplifying the assembly process and reducing the workload of manual alignment. In actual operation, workers only need to roughly align the clamping portion 22. The offset design helps it automatically adjust to the ideal position, saving assembly time and reducing the risk of non-conformance.

[0064] More preferably, when viewed along the second direction Y, the second plate 2132 partially covers the slot 222 .

[0065] It should be noted that the second plate 2132 covers the card slot 222, that is, the distance between the second plate 2132 away from the car dashboard and the car dashboard is greater than the distance between the slot wall of the card slot 222 close to the car dashboard and the car dashboard.

[0066] The second plate 2132 limits the position of the car instrument panel in the second direction Y after being assembled to the body sheet metal, ensuring that the slot 222 is aligned and fixed with the body sheet metal in the second direction Y, thereby ensuring the stability and firmness of the fixed clamping structure 1 after installation.

[0067] Preferably, the fixed clamping structure 1 includes at least two claws 2, and the claws 2 are arranged side by side along the second direction Y. One claw 2 is defined as a first claw 2, and the claw 2 adjacent to the first claw 2 is defined as a second claw 2. The first rib 213 of the first claw 2 close to the second claw 2 and the first rib 213 of the second claw 2 close to the first claw 2 are the same first rib 213, and the clamping parts 22 of adjacent claws 2 are integrally formed.

[0068] The claws 2 are arranged side by side along the second direction Y, and adjacent claws 2 share the same first rib 213, which makes the structure of the fixed clamping structure 1 more complex and the assembly specificity between the vehicle body sheet metal is higher. The assembly type can ensure that the assembly is error-free. If the local structure of one of the claws 2 is damaged, it will not affect the connection stability between the car dashboard and the vehicle body sheet metal.

[0069] The second aspect of an embodiment of the present invention provides a car dashboard, including a fixed clip structure 1, the car dashboard also including a main board body 3, multiple fixed clip structures 1 are arranged on the front outer edge of the main board body 3 at intervals along the second direction Y, and a rib mesh 4 is provided between two adjacent fixed clip structures 1.

[0070] A rib mesh 4 is provided between two adjacent fixed clip structures 1 to increase the connection strength between the fixed clip structures 1 and the car dashboard. The rib mesh 4 almost covers the outer edge of the front baffle of the main board, which can structurally increase the overall strength and stability of the car dashboard and make it less likely to deform. The rib mesh 4 can be injection molded, eliminating the step of welding fixings in the transmission design, making the production process more gradual, reducing welding time and equipment investment, and effectively reducing production costs.

[0071] Preferably, the rib network 4 includes two first ribs 41, a plurality of second ribs 42, a plurality of third ribs 43 and a plurality of fourth ribs 44, the two first ribs 41 are arranged at intervals along the first direction X, the first rib 41 extends along the second direction Y, and the two ends of the first rib 41 are respectively connected to two adjacent fixed clamping structures 1, a plurality of second ribs 42 are arranged at intervals along the second direction Y between the two first ribs 41, the second ribs 42 extend along the first direction X, the third rib 43 is arranged on one side of the two first ribs 41 in the second direction Y, a plurality of third ribs 43 are arranged at intervals along the second direction Y, the third rib 43 extends along the first direction X, the third rib 43 and the second rib 42 are staggered with each other, the fourth rib 44 is arranged on the other side of the two first ribs 41 in the second direction Y, a plurality of fourth ribs 44 are arranged at intervals along the second direction Y, the fourth rib 44 extends along the first direction X, and the fourth rib 44 corresponds to the third rib 43 in the first direction X.

[0072] Two first ribs 41 in the rib mesh 4 are spaced apart along the first direction X and connected to a plurality of second ribs 42, third ribs 43, and fourth ribs 44, effectively enhancing the overall rigidity of the instrument panel. The combination of the first ribs 41, second ribs 42, third ribs 43, and fourth ribs 44 improves the instrument panel's resistance to bending and deformation, ensuring it maintains a stable structural form during vehicle operation and preventing deformation or loosening. The rib mesh 4 structure disperses external forces and impacts. During collisions or vibrations, it effectively absorbs and disperses energy, reducing the direct impact of impact forces on the instrument panel structure and improving its impact and vibration resistance. The staggered arrangement of the second, third, and fourth ribs 44 further enhances the instrument panel's resistance to collisions and vibrations, improving vehicle safety.

[0073] A third aspect of an embodiment of the present invention provides a mold for injection molding an automobile instrument panel. The mold includes a panel 5, a hot runner plate 6, a cavity 7, a core 8, a core mold frame 9, a face needle plate 10, a bottom needle plate 11, and a bottom plate 12, which are arranged in sequence from top to bottom. The mold includes:

[0074] The inclined ejector assembly 13 is movably disposed on the core 8 and has a first molding surface 1311 for molding a portion of the main body 3 and the first reinforcement groove 211;

[0075] The core pulling assembly 14 is movably arranged on the core 8. The core pulling assembly 14 has a second molding surface. The second molding surface is used to form the slot 222 and the gap defined by the adjacent first ribs 213 and the seat body 212.

[0076] Preferably,

[0077] The inclined ejector assembly 13 includes an inclined ejector block 131, an inclined ejector rod 132, an inclined ejector seat 133 and a first driving member. The inclined ejector block 131 is arranged between the core 8 and the cavity 7. The inclined ejector block 131, the core 8 and the cavity 7 enclose a mold cavity, and the mold cavity is used for injection molding an automobile instrument panel. The inclined ejector seat 133 is arranged on the bottom needle plate 11. The inclined ejector rod 132 is tilted. One end of the inclined ejector rod 132 is connected to the inclined ejector block 131, and the other end passes through the core 8, the core mold frame 9, the surface needle plate 10, the bottom needle plate 11 and the inclined ejector seat 133 in sequence and is connected to the power output end of the first driving member, so as to drive the inclined ejector rod 132 to slide along its axial direction. The first molding surface 1311 is provided on the inclined ejector block 131. The inclined ejector block 131 also has a first inclined surface 1312. The first inclined surface 1312 is parallel to the axial direction of the inclined ejector rod 132.

[0078] The core pulling assembly 14 includes a core pulling slider 141, a shovel 142, a second driving member 143 and a slide 144. The core mold frame 9 has a cavity 91. The slide 144 is arranged in the cavity 91. The slide 144 is provided with a slide groove extending in the horizontal direction. The shovel 142 is slidably arranged in the slide groove. The power output end of the second driving member 143 is connected to the shovel 142, which is used to drive the shovel 142 to slide in the slide groove. The shovel 142 has a second inclined surface. The first end of the core pulling slider 141 abuts against the second inclined surface. The core pulling slider 141 is placed at an angle. The second end of the core pulling slider 141 passes through the core mold frame 9 and the core 8 in sequence and extends into the mold cavity. The second molding surface is arranged at the second end of the core pulling slider 141.

[0079] Based on the above technical solution, first, the first driving member drives the inclined ejector rod 132 to slide in its axial direction, so that the first molding surface 1311 of the inclined ejector block 131 falls to a preset position, and the second driving member 143 drives the shovel 142 to slide in the slide groove, thereby pushing the core-pulling slider 141 to slide until the second molding surface falls to the preset position. At this time, the core 8, the cavity 7, the first molding surface 1311 of the inclined ejector block 131, and the second molding surface of the core-pulling slider 141 jointly define a mold cavity, and plastic is injected into the film cavity through the hot runner plate 6 until the film cavity is completely filled with plastic;

[0080] After the car dashboard cools down, it is demoulded. First, the second driving member 143 drives the shovel 142 to slide in the slide groove, and the second molding surface of the core-pulling slider 141 is withdrawn from the mold cavity, and then the cavity 7, hot runner plate 6, and panel 5 are moved upward. The first driving member drives the inclined ejector rod 132 to slide synchronously with the cavity 7, hot runner plate 6, and panel 5. Since the inclined ejector rod 132 is tilted, when it slides, its sliding can be divided into an upward sub-movement and a horizontal sub-movement. The horizontal sub-movement causes the inclined ejector block 131 to be disengaged from the car dashboard. After the inclined ejector rod 132 is separated from the car dashboard, the inclined ejector rod 132 does not move, and the panel 5, hot runner plate 6, and cavity 7 continue to move upward. After it moves a certain distance, the first driving member drives the inclined ejector block 131 to fall back to its preset position. At this time, the car dashboard can be removed and the demoulding is completed.

[0081] Specifically, the first driving member and the second driving member 143 are both oil cylinders (the first driving member is not shown in the specification).

[0082] The first inclined surface 1312 is parallel to the axial direction of the inclined ejector rod 132. During the relative sliding process of the inclined ejector block 131 and the core 8, interference between the inclined ejector block 131 and the core 8 can be avoided, ensuring that the mold is not damaged during the entire injection molding process.

[0083] In one specific embodiment, a guide sleeve 134 is provided within the core 8, through which the lift rod 132 slides. The guide sleeve 134 is tangential to the first inclined surface 1312 in the axial direction of the lift rod 132. This minimizes the volume of the lift block 131 and the area of ​​the main plate 3 occupied by the first molding surface 1311. This reduces energy consumption of the first drive element during demolding, thereby lowering production costs.

[0084] In summary, the embodiments of the present invention provide a fixed clamping structure 1, an automobile instrument panel and a mold thereof, which:

[0085] 1. The fixed clamping structure 1 is provided with a first reinforcement groove 211 and a second reinforcement groove 221 in the connecting seat 21 and the clamping portion 22 of the clamping claw 2, so that the structure of the clamping claw 2 is more complex and the structural strength is enhanced, which effectively improves the deformation resistance of the fixed clamping structure 1 and enhances the connection stability between the vehicle dashboard and the body sheet metal, avoids the use of traditional welding structures, eliminates the instability that may be caused by welding, and ensures a firm and reliable connection.

[0086] 2. The present invention adopts an integrated injection molding process to manufacture the claw 2 structure. Injection molding not only simplifies the production process, but also avoids the traditional welding process and its complex tooling development, greatly reducing welding hours and tooling costs, reducing production costs and improving production efficiency.

[0087] 3. The present invention ensures precise docking during assembly by staggering the first guide surface 2231 and the second guide surface 21321, and setting the groove wall of the slot 222 and the second plate body 2132 at non-equal heights, thereby improving tolerance adaptability, reducing the workload of manual adjustment, and ensuring consistency and accuracy of assembly.

[0088] 4. The rib mesh 4 design enhances the rigidity and impact resistance of the dashboard. The rib mesh 4 effectively disperses external forces and impacts, improving the dashboard's resistance to bending, deformation, and vibration, enhancing vehicle safety and overall durability. This design effectively absorbs and disperses energy during collisions or vibrations, reducing the direct impact of impact forces on the dashboard structure.

[0089] 5. The inclined ejector assembly 13 and core pull assembly 14 in the mold design reduce the complexity of the mold parting and disassembly structure. The cooperation between the inclined ejector rod 132 and the core pull slider 141 ensures the molding accuracy during the injection molding process while avoiding interference between the molds and extending the service life of the mold.

[0090] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A fixed clamping structure for mounting a car dashboard on a car body sheet metal, characterized in that: include: A clamping claw (2), the clamping claw (2) comprising a connecting seat (21) and a clamping portion (22), the connecting seat (21) being arranged on the dashboard of the automobile, the clamping portion (22) being arranged on the connecting seat (21), the clamping portion (22) having a clamping slot (222), the extending direction of the clamping slot (222) being a second direction (Y), a first reinforcing slot (211) being provided on a side of the connecting seat (21) away from the clamping slot (222) in a first direction (X), a second reinforcing slot (221) being provided on a side of the clamping portion (22) away from the dashboard of the automobile, the first reinforcing slot (211) and the second reinforcing slot (221) being not connected, and the clamping claw (2) being integrally formed by injection molding; Wherein, the first direction (X) and the second direction (Y) are perpendicular to each other; The connecting seat (21) comprises a seat body (212), two first ribs (213) and two second ribs (214); the seat body (212) is arranged on the car dashboard; the two first ribs (213) are arranged on the seat body (212) at intervals along the second direction (Y); the first ribs (213) are connected to the car dashboard near the outer edge of the car dashboard; the clamping portion (22) is arranged between the two first ribs (213); the two second ribs (214) are arranged on the seat body (212); the two second ribs (214) and the seat body (212) jointly define the first reinforcement groove (211); the first ribs (213) and the second ribs (214) correspond to each other in the first direction (X).

2. The fixed clamping structure according to claim 1, characterized in that: The first rib (213) includes a first plate body (2131) and a second plate body (2132), wherein the first plate body (2131) is connected to the vehicle dashboard near the outer edge of the vehicle dashboard, and the first plate body (2131) is connected to the second plate body (2132) away from the outer edge of the vehicle dashboard, and the thickness of the first plate body (2131) is 1 / 4-1 / 2 of the thickness of the vehicle dashboard.

3. The fixed clamping structure according to claim 2, characterized in that: A guide block (223) is provided on the groove wall of the clamping groove (222) close to the second reinforcement groove (221), and the guide block (223) is located between the two first ribs (213). The guide block (223) has a first guide surface (2231), and the outer edge of the second plate body (2132) has a second guide surface (21321).

4. The fixed clamping structure according to claim 2, characterized in that: When viewed along the second direction (Y), the second plate (2132) partially covers the card slot (222).

5. The fixed clamping structure (1) according to any one of claims 1-2, characterized in that: The invention comprises at least two clamping claws (2), wherein the clamping claws (2) are arranged side by side along the second direction (Y), one clamping claw (2) is defined as a first clamping claw (2), and the clamping claw (2) adjacent to the first clamping claw (2) is defined as a second clamping claw (2), the first rib (213) of the first clamping claw (2) close to the second clamping claw (2) and the first rib (213) of the second clamping claw (2) close to the first clamping claw (2) are the same first rib (213), and the clamping portions (22) of the adjacent clamping claws (2) are integrally formed.

6. A car dashboard, comprising a plurality of fixed snap-fit ​​structures (1) according to any one of claims 1 to 5, characterized in that: It also includes a main body (3), a plurality of the fixed snap-fit ​​structures (1) are arranged at intervals along the second direction (Y) on the front outer edge of the main body (3), and a rib net (4) is provided between two adjacent fixed snap-fit ​​structures (1).

7. The automobile instrument panel according to claim 6, characterized in that: The rib net (4) includes two first ribs (41), a plurality of second ribs (42), a plurality of third ribs (43) and a plurality of fourth ribs (44), the two first ribs (41) are spaced apart along the first direction (X), the first rib (41) extends along the second direction (Y), the two ends of the first rib (41) are respectively connected to two adjacent fixed clamping structures (1), the plurality of second ribs (42) are spaced apart along the second direction (Y) between the two first ribs (41), the second ribs (42) extend along the first direction (X), the third rib (43) is arranged between the two first ribs (41), (41) On one side in the second direction (Y), a plurality of the third ribs (43) are arranged at intervals along the second direction (Y), the third ribs (43) extend along the first direction (X), the third ribs (43) and the second ribs (42) are staggered with each other, the fourth ribs (44) are arranged on the other side of the two first ribs (41) in the second direction (Y), a plurality of the fourth ribs (44) are arranged at intervals along the second direction (Y), the fourth ribs (44) extend along the first direction (X), and the fourth ribs (44) correspond to the third ribs (43) in the first direction (X).

8. A mold for injection molding an automobile instrument panel according to any one of claims 6 to 7, comprising a panel (5), a hot runner plate (6), a cavity (7), a core (8), a core mold frame (9), a surface needle plate (10), a bottom needle plate (11) and a bottom plate (12) arranged in sequence from top to bottom, characterized in that: include: A tilting top assembly (13), the tilting top assembly (13) being movably disposed on the core (8), the tilting top assembly (13) having a first molding surface (1311), the first molding surface (1311) being used to mold a portion of the main plate body (3) and the first reinforcement groove (211); A core pulling assembly (14) is movably arranged on the core (8), and the core pulling assembly (14) has a second molding surface, and the second molding surface is used to mold the slot (222) and the gap formed by the adjacent first rib (213) and the seat body (212).

9. The mold according to claim 8, characterized in that The inclined ejector assembly (13) includes an inclined ejector block (131), an inclined ejector rod (132), an inclined ejector seat (133) and a first driving member. The inclined ejector block (131) is arranged between the core (8) and the cavity (7). The inclined ejector block (131), the core (8) and the cavity (7) enclose a mold cavity, and the mold cavity is used for injection molding the automobile instrument panel. The inclined ejector seat (133) is arranged on the bottom needle plate (11). The inclined ejector rod (132) is inclined. One end of the inclined ejector rod (132) is aligned with the inclined ejector block. (131), and the other end passes through the core (8), the core mold frame (9), the surface needle plate (10), the bottom needle plate (11) and the inclined ejector seat (133) in sequence and is connected to the power output end of the first driving member, and is used to drive the inclined ejector rod (132) to slide along its axial direction, the first molding surface (1311) is provided on the inclined ejector block (131), and the inclined ejector block (131) also has a first inclined surface (1312), and the first inclined surface (1312) and the axial direction of the inclined ejector rod (132) are parallel to each other; The core pulling assembly (14) includes a core pulling slider (141), a shovel (142), a second driving member (143) and a slide (144). The core mold frame (9) has a cavity (91). The slide (144) is arranged in the cavity (91). The slide (144) is provided with a slide groove extending in the horizontal direction. The shovel (142) is slidably arranged in the slide groove. The power output end of the second driving member (143) is connected to the shovel (142) for driving the shovel (142) to slide in the slide groove. The shovel (142) has a second inclined surface. The first end of the core pulling slider (141) abuts against the second inclined surface. The core pulling slider (141) is tilted. The second end of the core pulling slider (141) passes through the core mold frame (9) and the core (8) in sequence and extends into the mold cavity. The second molding surface is arranged at the second end of the core pulling slider (141).

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