Automobile gearbox mold insert with stable connection structure
By designing insert components and reinforcing plate components, the connection stability and compressive strength of automotive gearbox mold inserts were enhanced, solving the displacement and detachment problems caused by small contact area, and improving the part forming accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
The small contact area between the inserts and the mold in existing automotive transmission molds leads to decreased connection stability. This makes them prone to displacement, deformation, or detachment during high-temperature and high-pressure molding, affecting the molding accuracy and quality of the parts and increasing maintenance costs and downtime.
A stable connection structure for automotive gearbox mold inserts was designed, including an insert post assembly and a reinforcing plate assembly. The insert post is equipped with a reinforcing plate and an insert head protection ring, etc., to enhance the connection stability and compressive strength between the insert and the injection molded part, and to increase the contact area.
It improves the connection stability and compressive strength between inserts and injection molded parts, prevents cracks, enhances the structural stability of the mold, reduces scrap rate and maintenance costs, and improves production efficiency.
Smart Images
Figure CN224116587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive transmission mold insert technology, and in particular to automotive transmission mold inserts with stable connection structure. Background Technology
[0002] In the automotive manufacturing industry chain, the gearbox is a core transmission component, and the precision of its mold directly determines the part forming quality and production efficiency. Mold inserts are key functional units that constitute the mold cavity, enabling the precise forming of complex structures. At the same time, they facilitate the partial replacement and maintenance of the mold, reducing the overall manufacturing cost. With the increasing trend of lightweight and intelligent vehicles, the gearbox structure is becoming more multi-cavity, thinner-walled, and more precise, driving the development of mold insert technology towards high strength, high temperature resistance, and high wear resistance.
[0003] When the contact area between the insert and the mold is small, the friction and mechanical interlocking force between them are insufficient. During the molding process such as injection molding or die casting, due to the influence of factors such as high temperature, high pressure and melt flow, the insert is prone to displacement, deformation or even falling off. This will not only lead to mold damage, increase maintenance costs and downtime, but also seriously affect the molding accuracy and quality of gearbox parts, increase scrap rate and reduce production efficiency. Utility Model Content
[0004] In order to overcome the problem that the connection stability between existing automotive transmission mold inserts and the mold is reduced due to the small contact area between them, this utility model provides an automotive transmission mold insert with a stable connection structure.
[0005] The technical solution is as follows: a stable automotive gearbox mold insert, including an insert post assembly and a reinforcing plate assembly; the insert post assembly is externally provided with a reinforcing plate assembly; the insert post assembly includes an insert post, an insert head, a hole reinforcement ring, an insert head protection ring, and an insert hole; the reinforcing plate assembly includes a reinforcing rib ring, a reinforcing plate, and an injection molding connection opening.
[0006] Furthermore, the upper end of the insert post is provided with an insert head, and the insert head is integrally formed with the insert post; the lower end of the insert post is provided with a hole reinforcement ring, and the hole reinforcement ring is integrally formed with the insert post.
[0007] Furthermore, an insert head protective ring is provided on the outside of the insert head, and the insert head protective ring is integrally formed with the insert head.
[0008] Furthermore, the insert post is provided with a reinforcing rib ring on its exterior, and the reinforcing rib ring is integrally formed with the insert post.
[0009] Furthermore, a reinforcing plate is provided on the outside of the reinforcing rib ring, and the reinforcing plate is integrally formed with the reinforcing rib ring.
[0010] Furthermore, the reinforcing sheet has six injection molding joint openings inside.
[0011] Furthermore, the insert post has an insert hole inside, and the insert hole is integrally formed with the insert post.
[0012] The beneficial effects are:
[0013] 1. This utility model enhances the stability of the insert post assembly within the injection molded part by using a reinforcing plate assembly on the outside of the insert post. This allows the insert post to better connect with the injection molded part under the pressure of the axial bias force during use. The reinforcing plate effectively improves the compressive strength in the axial angle direction of the insert post, improves structural stability, prevents cracks at the connection between the insert post and the injection molded part, and further improves the front and rear pressure resistance in the axial direction of the insert post. The reinforcing plate expands the contact area between the insert post and the injection molded part, and the setting of the injection molding joint opening effectively improves the stability of the embedded connection between the reinforcing plate and the injection molded part.
[0014] 2. By setting the insert head protection ring, when the insert assembly is embedded in the automotive gearbox mold, the insert head protection ring effectively protects the structural stability around the insert head and improves the pressure resistance of the insert head. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;
[0017] Figure 3 This is a three-dimensional cross-sectional view of the present invention.
[0018] Figure 4 This is a three-dimensional structural diagram of the reinforcing plate assembly of this utility model;
[0019] Figure 5 This is a three-dimensional structural diagram of the embedded column assembly of this utility model.
[0020] In the attached figures, the following are the reference numerals: 1. Insert post assembly; 2. Reinforcing plate assembly; 101. Insert post; 102. Insert head; 103. Hole reinforcement ring; 104. Insert head protection ring; 105. Insert hole; 201. Reinforcing rib ring; 202. Reinforcing plate; 203. Injection molding joint opening. Detailed Implementation
[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0022] Example 1
[0023] like Figures 1-5 As shown, the automotive gearbox mold insert with a stable connection structure includes an insert post assembly 1 and a reinforcing plate assembly 2; the reinforcing plate assembly 2 is provided on the outside of the insert post assembly 1; the insert post assembly 1 includes an insert post 101, an insert head 102, a hole reinforcement ring 103, an insert head protection ring 104, and an insert hole 105; the reinforcing plate assembly 2 includes a reinforcing rib ring 201, a reinforcing plate 202, and an injection molding connection opening 203.
[0024] The upper end of the insert post 101 is provided with an insert head 102, and the insert head 102 is integrally formed with the insert post 101; the lower end of the insert post 101 is provided with a hole reinforcement ring 103, and the hole reinforcement ring 103 is integrally formed with the insert post 101.
[0025] An insert head protection ring 104 is provided on the outside of the insert head 102, and the insert head protection ring 104 is integrally formed with the insert head 102.
[0026] The insert post 101 is provided with a reinforcing rib ring 201 on its exterior, and the reinforcing rib ring 201 is integrally formed with the insert post 101.
[0027] The reinforcing rib ring 201 is provided with a reinforcing plate 202 on its outside, and the reinforcing plate 202 and the reinforcing rib ring 201 are integrally formed.
[0028] The reinforcing plate 202 has six injection molding joint openings 203 inside.
[0029] The reinforcing plate assembly 2 on the outside of the insert post 101 enhances the stability of the insert post assembly 1 within the injection molded part. This allows the insert post 101 to better connect with the injection molded part under the biased force pressure along its axis during use. The reinforcing plate 202 effectively improves the compressive strength of the insert post 101 in the axial angle direction, enhancing structural stability and preventing cracks at the connection between the insert post 101 and the injection molded part. It also improves the front-to-back pressure resistance of the insert post 101 in the axial direction. The reinforcing plate 202 expands the contact area between the insert post 101 and the injection molded part. The injection molding joint opening 203 effectively improves the stability of the embedded connection between the reinforcing plate 202 and the injection molded part. The insert head protection ring 104 effectively protects the structural stability of the insert head 102 when the insert post assembly 1 is embedded in the automotive gearbox mold, improving the pressure resistance of the insert head 102.
[0030] Example 2
[0031] Based on Example 1, such as Figures 1-5As shown, the insert post 101 has an insert hole 105 inside, and the insert hole 105 is integrally formed with the insert post 101. The insert hole 105 is used to connect the insert post 101 to an external embedded device, improving assembly convenience.
Claims
1. A stable automotive gearbox mold insert, comprising an insert assembly (1), characterized in that: It also includes a reinforcing plate assembly (2); the reinforcing plate assembly (2) is provided on the outside of the insert assembly (1); the insert assembly (1) includes an insert post (101), an insert head (102), a hole reinforcement ring (103), an insert head protection ring (104), and an insert hole (105); the reinforcing plate assembly (2) includes a reinforcing rib ring (201), a reinforcing plate (202), and an injection molding joint opening (203).
2. The automotive gearbox mold insert with a stable connection structure according to claim 1, characterized in that: An insert head (102) is provided at the upper end of the insert post (101), and the insert head (102) is integrally formed with the insert post (101); a hole reinforcement ring (103) is provided at the lower end of the insert post (101), and the hole reinforcement ring (103) is integrally formed with the insert post (101).
3. The automotive gearbox mold insert with a stable connection structure according to claim 2, characterized in that: An insert head protection ring (104) is provided on the outside of the insert head (102), and the insert head protection ring (104) is integrally formed with the insert head (102).
4. The automotive gearbox mold insert with a stable connection structure according to claim 1, characterized in that: The insert post (101) is provided with a reinforcing rib ring (201) on its exterior, and the reinforcing rib ring (201) is integrally formed with the insert post (101).
5. The automotive gearbox mold insert with a stable connection structure according to claim 4, characterized in that: The reinforcing rib ring (201) is provided with a reinforcing plate (202) on its outside, and the reinforcing plate (202) and the reinforcing rib ring (201) are integrally formed.
6. The automotive gearbox mold insert with a stable connection structure according to claim 5, characterized in that: The reinforcing sheet (202) has six injection molding joints (203) inside.
7. The automotive gearbox mold insert with a stable connection structure according to claim 1, characterized in that: The insert post (101) has an insert hole (105) inside, and the insert hole (105) and the insert post (101) are integrally formed.