Novel fixing structure with pre-hanging type clamping and capable of changing mold stripping direction
By introducing hinges and pre-attached snap-fit structures inside the part, the demolding direction of the part's local undercut structure is changed, which solves the problem of mold design complexity, reduces part production costs, and improves production efficiency.
Patent Information
- Application Number
- CN202422790317.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-15
AI Technical Summary
In the existing technology, the design of part molds is complex, the design cost is high, and the production efficiency of parts is low. In particular, when the part fixing structure is different from the main mold ejection direction, additional core pulling or inclined ejector structures are required, which increases the production cost.
A fixed structure with pre-hung snap-fit can be adopted to change the mold release direction. By adding hinge structure, limit structure and pre-hung snap-fit structure, the mold release direction of the part's local undercut structure can be changed, simplifying the mold design and avoiding the need to add additional core pulling or angled ejector structures.
Without altering the overall shape of the part or the installation direction of the fixed structure, it reduces part design and production costs, simplifies mold design, and improves production efficiency, making it suitable for parts of different models and sizes.
Smart Images
Figure CN223519998U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile design and manufacturing, specifically relates to a novel fixed structure with pre-hanging type clamping and changeable ejection direction. BACKGROUND
[0002] At present, automobile modeling is changing with each passing day, and products are iteratively upgraded, in order to ensure the installation strength reliability between parts, the internal structure design of parts is more and more complex, die design is difficult, and part manufacturing cost is rising, among them, the proportion of die design cost in total part production cost is increasing. In order to reduce the design and production cost of parts, it is necessary to optimize the structure of the die, and try to reduce the core-pulling structure or inclined top structure of the die. If the reverse clamping structure of the part can be pulled out of the die from the main ejection direction, the cost of die design will be reduced, at the same time, more parts can be produced in unit time, and the production efficiency is improved.
[0003] In the prior art, when the part pinning fixed structure is different from the main ejection direction, the die will locally adopt the core-pulling structure, but the die design cost is high. In order to reduce the part cost, at the same time, ensure the fixing and installation reliability between parts, without changing the installation direction of the original pinning fixed structure, the ejection direction of the local reverse clamping structure of the part needs to be changed. Based on this, a novel fixed structure with pre-hanging type clamping and changeable ejection direction is needed to be developed, so that the ejection direction of the pinning fixed structure of the part during production is consistent with the main ejection direction. SUMMARY
[0004] The utility model discloses a novel fixed structure with pre-hanging type clamping and changeable ejection direction, which has simple structure and reasonable design, and solves the problems of ejection of the local reverse clamping structure of the part and complexity of the part die design by increasing the hinge structure, pre-hanging type clamping structure and limiting structure in the part, so that the part design and production cost can be effectively reduced.
[0005] The utility model discloses a novel fixed structure with pre-hanging type clamping and changeable ejection direction, which has simple structure and reasonable design, and solves the problems of ejection of the local reverse clamping structure of the part and complexity of the part die design by increasing the hinge structure, pre-hanging type clamping structure and limiting structure in the part, so that the part design and production cost can be effectively reduced.
[0006] A fixed structure with pre-hanging type clamping and changeable ejection direction is composed of a body structure 1, a hinge structure 2, two limiting structures 3, two pre-hanging type clamping structures 4 and a pinning fixed structure 5.
[0007] The body structure 1 is composed of a fixed part and a rotating part, the fixed part is connected by a vertical surface and a horizontal surface with a convex notch, and the fixed part and the rotating part are hinged through the hinge structure 2.
[0008] The rotating part is a convex structure, two limiting structures 3 are respectively located on two sides of the convex structure, a plurality of limiting ribs are arranged on the limiting structure 3, and the plurality of limiting ribs can be matched with the lower surface of the groove structure at the convex notch of the horizontal flange when the rotating part is rotated to be in the same plane as the horizontal plane of the fixed part along the hinge structure 2; two pre-hanging clamping structures 4 are respectively arranged on the two side flanges of the convex structure, and are adjacent to the limiting structure 3; when the rotating part is rotated to be in the same plane as the horizontal plane of the fixed part along the hinge structure 2, the pre-hanging clamping structure 4 can be matched with the inner surface of the flange at the convex notch of the horizontal plane of the fixed part of the body structure 1.
[0009] The nailing fixing structure 5 is arranged in the middle of the rotating part, and after rotation, the nailing fixing structure 5 is fixed with the matched part.
[0010] Further, after the rotating part and the fixed part are fixed, the body structure 1 is in an L shape as a whole.
[0011] Further, the vertical surface and the horizontal surface are integrally formed.
[0012] Further, the hinge structure 2 is located between the fixed part and the rotating part of the body structure 1, and the part can be rotated around the hinge structure 2 when pre-installed and assembled, and the top end of the horizontal plane convex notch and the rotating part are hinged through the hinge structure 2.
[0013] Further, one limiting structure 3 is arranged at each of the two side L-shaped flanges of the convex structure, and the limiting structure 1 and the L-shaped flange of the convex structure are integrally formed.
[0014] Further, the limiting rib is 2.
[0015] Further, one pre-hanging clamping structure 4 is arranged at each of the two lower flanges of the convex structure.
[0016] Further, the nailing fixing structure 5 and the rotating part are integrally formed.
[0017] Further, the nailing fixing structure 5 can also be replaced by a welding fixing structure according to design requirements.
[0018] Further, the limiting structure 3 and the pre-hanging clamping structure 4 are symmetrically distributed based on the nailing fixing structure 5.
[0019] Compared with the prior art, the body structure has the beneficial effects that:
[0020] 1. The utility model discloses a fixed structure with pre-hanging type clamping and changeable ejection direction, which changes the ejection direction of the local undercut structure of the part by increasing the hinge structure under the premise of not changing the overall modeling of the part and the installation direction of the original fixed structure, simplifies the design of the part mold, does not need to additionally increase the core pulling or inclined top structure of the mold, and saves the development and production cost of the part.
[0021] 2. The pre-hanging type clamping structure can be pre-installed and fixed through buckling before the installation of the nailing fixed structure, and then the fixing of the nailing fixed structure is increased, so that the part installation is convenient.
[0022] 3. The fixed structure with pre-hanging type clamping and changeable ejection direction has simple structure, is easy to form and produce, can be applied to different vehicle models and different sizes of parts by only changing the size of the structure design, and has wide application range. DRAWINGS
[0023] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as limiting the scope, and for the ordinary skilled in the art, other related drawings can be obtained according to these drawings without creative labor.
[0024] Figure 1 It is the fixed structure ejection state schematic drawing of the utility model;
[0025] Figure 2 It is the pre-installation assembly state schematic drawing of the fixed structure of the utility model;
[0026] Figure 3 It is the pre-hanging type clamping structure schematic drawing and limiting schematic drawing when the utility model is opened;
[0027] Figure 4 It is the sectional view of the limiting structure of the utility model;
[0028] Figure 5 It is the sectional view of the cooperation relationship of the pre-hanging type clamping structure of the utility model.
[0029] In the drawing, 1. Body structure 2. Hinge structure 3. Limiting structure 4. Pre-hanging type clamping structure 5. Nailing fixed structure. DETAILED DESCRIPTION
[0030] The utility model will be further described in combination with the embodiments:
[0031] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and not limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description, not all the structures.
[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the utility model, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0033] The utility model discloses a fixed structure with pre-hanging type clamping and changeable mold direction, as shown in the drawings, which is composed of a body structure 1, a hinge structure 2, a limiting structure 3, a pre-hanging type clamping structure 4 and a nailing fixing structure 5. Figure 1
[0034] The body structure 1 is composed of a fixed part and a rotating part. After the rotating part and the fixed part are fixed, the body structure 1 is L-shaped as a whole. The fixed part is connected by a vertical surface and a horizontal surface with a convex notch, and the vertical surface and the horizontal surface are integrally formed.
[0035] The hinge structure 2 is located between the fixed part and the rotating part of the body structure 1, and the parts can rotate around the hinge structure 2 during pre-installation assembly. Specifically, the horizontal surface convex notch and the top end of the rotating part are hinged through the hinge structure 2.
[0036] The rotating part is a convex structure. The limiting structure 3 is two, which are located on both sides of the convex structure. Specifically, one limiting structure 3 is arranged on each L-shaped flange of the convex structure, and the limiting structure 3 and the L-shaped flange of the convex structure are integrally formed.
[0037] A plurality of limiting ribs are arranged on the limiting structure 3, which can match the lower surface of the groove structure on the horizontal flange convex notch when the rotating part is rotated along the hinge structure 2 to the same plane as the horizontal surface. The pre-hanging type clamping structure 4 is two, which are arranged on the flanges on both sides of the convex structure, close to the limiting structure 3. Specifically, one pre-hanging type clamping structure 4 is arranged on each flange below the convex structure. When the rotating part is rotated along the hinge structure 2 to the same plane as the horizontal surface of the fixed part, the pre-hanging type clamping structure 4 can match the inner surface of the horizontal flange convex notch of the fixed part of the body structure 1.
[0038] The nail-fixing structure 5 is located in the middle of the rotating part and is integrally formed with the rotating part. After rotation, it is fixed to the matching part by nailing. The nail-fixing structure 5 can also be replaced with a welding fixing structure according to design requirements. Figure 2 The diagram shows the pre-installation assembly state of the pre-attached snap-fit fixing structure of this utility model, which allows for changing the ejection direction. The limiting structure 3, the pre-attached snap-fit structure 4, and the nail fixing structure 5 can rotate around the hinge structure 2, ensuring that the part can have different shapes during mold ejection and assembly. This allows the assembly direction of the nail fixing structure 5 to differ from the ejection direction, and the nail fixing structure 5 can rotate around the hinge structure 2 to fix itself to the matching part. Specifically, when the part opens, the limiting structure 3, the pre-attached snap-fit structure 4, and the nail fixing structure 5 eject along the main ejection direction of the part, eliminating the need for a separate core-pulling or angled ejector structure in the mold, simplifying the mold design. During assembly, the rotating part of the lower part body structure 1 rotates around the hinge structure 2, first fixing the pre-attached snap-fit structure 4, and then tightening the nail fixing structure 5.
[0039] like Figure 3 As shown, the limiting structure 3 and the pre-attached snap-fit structure 4 are both symmetrically distributed based on the nail fixing structure 5, ensuring the reliability of the assembly when the pre-attached snap-fit structure 4 is pre-installed.
[0040] This utility model features a fixed structure with a pre-attached snap-fit mechanism that allows for changes in the ejection direction, such as... Figure 1 As shown. The ejection direction of the nail-fixing structure 5 is consistent with the main ejection direction, and the nail-fixing structure 5 does not require a separate core-pulling structure for ejection.
[0041] like Figure 4 As shown, the limiting structure 3 can cooperate with the main body structure 1. The limiting structure 3 is used to prevent the nail fixing structure 5 from rotating upward around the hinge structure 2.
[0042] like Figure 5 As shown, the pre-attached snap-fit structure 4 can cooperate with the main body structure 1. The pre-attached snap-fit structure 4 is used to prevent the nail fixing structure 5 from rotating downward around the hinge structure 2.
[0043] To ensure design simplicity and avoid affecting overall demolding, the limiting structure 3 and the pre-attached snap-fit structure 4 are directly matched with the flange of the part body structure 1, without any other matching structures.
[0044] The utility model discloses a pre-hanging type clamping structure 4 can be installed fixedly in advance through the buckle before the installation of the nailing fixing structure 5, and then the fixing of the nailing fixing structure 5 is added, and the part installation is convenient.
[0045] The utility model discloses a structure only needs to change the size of structural design, and can be applied to different vehicle types, different size parts, and is widely applied.
[0046] It should be noted that the above is only the preferred embodiment of the utility model and the applied technical principle. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the utility model concept, and the scope of the utility model is determined by the appended claims.
Claims
1. A fixing structure with pre-attached snap-fit that can change the ejection direction, characterized in that: The body structure (1), hinge structure (2), two limiting structures (3), two pre-hung type clamping structure (4) and nail fixing structure (5) constitute; The fixed part and the rotating part are connected by a vertical surface and a horizontal surface with a convex-shaped notch, and the fixed part and the rotating part are hinged by the hinge structure (2); The rotating part is a convex-shaped structure, and two limiting structures (3) are located on both sides of the convex-shaped structure, and a plurality of limiting ribs are arranged on the limiting structure (3), which can match the lower surface of the groove structure on the horizontal surface of the rotating part when the rotating part is rotated along the hinge structure (2) to be in the same plane with the horizontal surface of the fixed part; Two pre-hung type clamping structures (4) are arranged on the two side flanges of the convex-shaped structure, adjacent to the limiting structure (3), and when the rotating part is rotated along the hinge structure (2) to be in the same plane with the horizontal surface of the fixed part, the pre-hung type clamping structure (4) can match the inner surface of the flange of the horizontal surface convex-shaped notch of the fixed part of the body structure (1); The nail fixing structure (5) is arranged in the middle of the rotating part and is fixed with the matched part after rotation.
2. The fixed structure of claim 1, wherein the fixed structure is characterized in that: After the rotating part and the fixed part are fixed, the body structure (1) is L-shaped as a whole.
3. The fixed structure of claim 1, wherein the fixed structure is characterized in that: The vertical surface and the horizontal surface are integrally formed.
4. The fixed structure of claim 1, wherein the fixed structure is characterized in that: The hinge structure (2) is located between the fixed part and the rotating part of the body structure (1), and the part can rotate around the hinge structure (2) when pre-installed and assembled, and the horizontal surface convex-shaped notch and the top end of the rotating part are hinged by the hinge structure (2).
5. The fixed structure of claim 1, wherein the fixed structure is characterized in that: One limiting structure (3) is arranged at each of the two L-shaped flanges of the convex-shaped structure, and the limiting structure (3) and the L-shaped flange of the convex-shaped structure are integrally formed.
6. The fixed structure of claim 1, wherein the fixed structure is a pre-hung door. The limiting rib is 2.
7. The fixed structure of claim 1, wherein the fixed structure is a pre-hung door frame. One pre-hung type clamping structure (4) is arranged at each of the two lower flanges of the convex-shaped structure.
8. The fixed structure of claim 1, wherein the fixed structure is a pre-hung door. The nail fixing structure (5) and the rotating part are integrally formed.
9. The fixed structure of claim 1, wherein the fixed structure is a pre-hung door frame. The nail fixing structure (5) can also be replaced by a welding fixing structure according to design requirements.
10. The fixed structure of claim 1, wherein the fixed structure is a pre-hung door. The limiting structure (3) and the pre-hung type clamping structure (4) are symmetrically distributed based on the nail fixing structure (5).