High-precision integral filling and sealing jig
The potting jig design with aluminum alloy and Teflon coating, combined with glue guide channels and cross-shaped glue guide grooves, solves the problems of unstable thermal expansion and excessive bubbles in existing potting jigs, and achieves a high-precision and efficient potting process.
Patent Information
- Application Number
- CN202422606759.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The existing potting jig has unstable thermal expansion at the surface in contact with the potting glue, resulting in large dimensional differences. In addition, many bubbles are generated during the potting process, requiring secondary processing, which affects product quality and efficiency.
The potting fixture is designed with aluminum alloy material and Teflon coating, combined with glue guide channels and cross-shaped glue guide grooves to ensure uniform glue distribution, avoid bubbles and secondary processing, and achieve high-precision potting through thermal expansion coordination.
High-precision potting is achieved, dimensional changes and bubbles are reduced, product quality and production efficiency are improved, secondary processing is avoided, and the stability and consistency of the potting process are ensured.
Smart Images
Figure CN223379036U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of potting jigs, and in particular relates to a high-precision integral potting jig. Background Art
[0002] Potting is a critical process in motor production. Using a specific potting compound to seal key internal components prevents moisture and dust from entering the motor, effectively protecting the motor and further improving its performance and service life. Existing potting jigs typically use non-stick plastics in contact with the potting compound. This leads to unstable thermal expansion when heated, resulting in significant dimensional variation in the potting compound. Furthermore, vacuum treatment is required to remove air bubbles and voids in the potting compound, resulting in a rough, bubbly product. To smooth the surface, secondary processing is often required to remove these defects, which is time-consuming and labor-intensive. Utility Model Content
[0003] The purpose of the utility model is to provide a high-precision integral potting jig to solve the secondary processing and precision problems in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A high-precision integral potting fixture comprises a potting base and a potting pressure plate, wherein a positioning rod is connected between the potting base and the potting pressure plate, a fitting groove is provided on the surface of the potting base, a glue guide hole is provided through one side of the fitting groove, and a core rod is installed between the potting base and the potting pressure plate, and the core rod and the glue guide hole are kept concentric;
[0006] The core rod surface is provided with a glue guide groove, a glue guide strip is installed inside the fitting groove, a glue strip pressing block is installed above the glue guide strip, and a glue line stop screw is threadedly connected to the glue line stop screw, and the position of the glue line stop screw and the glue guide hole are kept concentric;
[0007] Furthermore, the glue-filling base and glue-filling platen are provided with a glue-surface pressing block on one side. The glue-surface pressing block on the glue-filling platen is provided with a circular groove, wherein the upper and lower end surfaces of the core rod contact the glue-surface pressing blocks on the glue-filling base and glue-filling platen. To install the glue-surface pressing block, simply place the glue-surface pressing block in the circular groove, thus achieving auxiliary positioning installation, further improving the installation convenience of the entire device.
[0008] Furthermore, the glue-potting base, glue-potting pressure plate, and glue-surface pressing block are constructed from aluminum alloy, all electroplated with Teflon. Aluminum alloy inherently possesses excellent mechanical properties and dimensional stability, ensuring the dimensional accuracy of the glue-potting base and glue-surface pressing block during manufacturing and use. The Teflon coating further enhances surface smoothness and hardness, reducing dimensional changes due to wear and deformation, thereby maintaining high glue surface precision over time.
[0009] Furthermore, a glue guide channel is provided inside the glue guide strip, and the glue is passed into the glue guide channel, and the glue is smoothly transported inside the glue guide hole by the glue guide channel.
[0010] Furthermore, a glue guide groove is provided above the core rod. The cross-shaped guide groove allows the glue to be evenly distributed over the core rod, preventing excessive glue accumulation or loss in certain areas. This even distribution helps ensure stability and consistency during the glue filling process, thereby improving product quality and reliability.
[0011] Furthermore, a lead terminal positioning block is installed on one side of the glue-potting base, and a terminal positioning plate is installed below the lead terminal positioning block.
[0012] The technical solution of this utility model has the following beneficial effects:
[0013] 1. Inject the designated potting glue into the glue guide channel. The glue flows from the glue guide channel into the glue guide hole, then into the cross-shaped glue guide groove, and finally into the motor product in the area to be glued. When the glue is poured, tighten the glue channel stop screw to separate the glue inside the product and the glue inside the glue guide strip, which facilitates later demoulding and tooling cleaning, achieving high-efficiency motor production and avoiding secondary processing.
[0014] 2. Through the thermal expansion coordination of different materials and surface treatment, high-precision and high-surface-roughness integrated potting is achieved, achieving high-precision dimensional control. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.
[0018] Figure 3 This is a schematic diagram of the split structure of the utility model.
[0019] Figure 4 It is a planar sectional view of the present utility model.
[0020] Figure numerals: 10, glue pouring base; 11, fitting groove; 12, glue guide hole; 20, positioning rod; 30, glue pouring pressure plate; 40, glue surface pressure block; 50, core rod; 51, glue guide groove; 60, glue path stop screw; 70, glue strip pressure block; 80, glue guide strip; 81, glue guide channel; 90, lead terminal positioning block; 91, terminal positioning plate. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0022] Example 1:
[0023] refer to Figure 1 and Figure 2 A high-precision integral potting fixture includes a potting base 10 and a potting pressure plate 30. A positioning rod 20 is connected between the potting base 10 and the potting pressure plate 30. A fitting groove 11 is provided on the surface of the potting base 10. A glue guide hole 12 is provided on one side of the fitting groove 11. A core rod 50 is installed between the potting base 10 and the potting pressure plate 30. The core rod 50 and the glue guide hole 12 are kept concentric.
[0024] In the above solution, the glue pouring base 10 and the glue pouring pressing plate 30 are fixed together via the positioning rod 20 .
[0025] refer to Figure 1-Figure 2 A glue guide groove 51 is provided on the surface of the core rod 50, a glue guide strip 80 is installed inside the fitting groove 11, a glue strip pressing block 70 is installed above the glue guide strip 80, and a glue path stop screw 60 is threadedly connected to the glue path stop screw 60, and the position of the glue path stop screw 60 and the glue guide hole 12 are kept concentric.
[0026] In the above scheme, the shape of the fitting groove 11 on the surface of the glue pouring base 10 is consistent with the outer contour of the rubber guide strip 80. It is only necessary to place the rubber guide strip 80 inside the fitting groove 11. No other positioning parts are required, which simplifies the installation steps; then the rubber strip pressing block 70 is pressed on top of the rubber guide strip 80. Circular hole grooves are opened on the four sides of the rubber strip pressing block 70, and corresponding circular hole grooves are also opened on the surface of the glue pouring base 10. The circular hole grooves are concentrically matched with the circular hole grooves opened on the four sides of the rubber strip pressing block 70. Bolts are installed at the circular hole grooves of the two to fix the rubber strip pressing block 70, and the position of the rubber guide strip 80 is stabilized by the rubber strip pressing block 70; then the glue line stop screw 60 is threadedly connected to the rubber strip pressing block 70, and the glue line stop screw 60 will enter the glue guide hole 12. The glue guide hole 12 is sealed or opened by loosening or tightening the glue line stop screw 60.
[0027] Further references Figure 2 A glue surface pressing block 40 is provided on one side of the glue potting base 10 and the glue potting pressing plate 30. The glue surface pressing block 40 on the glue potting pressing plate 30 has a circular groove, wherein the upper and lower end surfaces of the core rod 50 contact the glue surface pressing block 40 on the glue potting base 10 and the glue potting pressing plate 30. To install the glue surface pressing block 40, simply place the glue surface pressing block 40 in the circular groove of the glue surface pressing block 40 to achieve auxiliary positioning installation, further improving the installation convenience of the entire equipment.
[0028] Furthermore, the glue-potting base 10, glue-potting pressure plate 30, and glue-surface pressing block 40 are made of aluminum alloy, all electroplated with a Teflon coating. Aluminum alloy inherently possesses excellent mechanical properties and dimensional stability, ensuring the dimensional accuracy of the glue-potting base 10 and glue-surface pressing block 40 during manufacturing and use. The Teflon coating further enhances surface smoothness and hardness, reducing dimensional changes due to wear or deformation, thereby maintaining the high precision of the glue surface over time. The Teflon coating's extremely low coefficient of friction and excellent lubricity allow the glue surface to be easily released from the glue-potting base 10 and glue-surface pressing block 40 after curing, preventing damage or deformation caused by adhesion, improving production efficiency, and reducing production delays and increased costs caused by demolding difficulties.
[0029] Aluminum alloy inherently possesses a certain degree of corrosion resistance, and the Teflon coating further enhances this property, ensuring that the potting base 10 and the surface pressure block 40 maintain long-term stability in harsh operating environments. Furthermore, the high hardness of the Teflon coating enhances surface wear resistance, extending the life of the equipment. Through thermal expansion coordination of the different materials and surface treatment, high-precision, high-surface-roughness integrated potting is achieved, enabling high-precision dimensional control.
[0030] Further references Figure 2 and Figure 3, a glue guide channel 81 is provided inside the glue guide strip 80. The glue is passed into the glue guide channel 81, and the glue is smoothly transported inside the glue guide hole 12 by the glue guide channel 81.
[0031] Further references Figure 2-Figure 4 A glue guide groove 51 is provided above the core rod 50 in a cross-shaped arrangement. The cross-shaped glue guide groove 51 allows the glue to be evenly distributed over the core rod 50, preventing excessive glue accumulation or loss in a particular area. This even distribution helps ensure stability and consistency during the glue pouring process, thereby improving product quality and reliability.
[0032] The specific implementation process of this embodiment is as follows:
[0033] refer to Figure 2 and Figure 4 ,in Figure 4 The shaded area in the figure is the area to be filled with glue; after the product and the fixture are preheated, the glue is injected in the direction of the arrow; the specified potting glue is injected from the glue guide channel 81, and the glue enters the glue guide hole 12 from the glue guide channel 81, and then enters the cross-shaped glue guide groove 51 from the glue guide hole 12, and finally enters the interior of the motor product in the area to be filled with glue; when the glue filling is completed, the glue path stop screw 60 is locked, that is, the glue inside the product and the glue inside the glue guide strip 80 is separated, which facilitates the later demoulding and tooling cleaning, realizes high-efficiency production of the motor, and avoids secondary processing.
[0034] Example 2:
[0035] A lead terminal positioning block 90 is installed on one side of the glue potting base 10, and a terminal positioning plate 91 is installed below the lead terminal positioning block 90. For motor products with lead terminals, precise positioning is achieved by installing the lead terminal positioning block 90 and the terminal positioning plate 91, improving the convenient installation performance.
[0036] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Various modifications or equivalent substitutions may be made to the present invention within the spirit and scope of protection of the present invention. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.
[0037] In the description of this utility model, it should be noted that the terms "inner," "front," "back," "left," and "right" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the enclosed circles, or are the directions or positional relationships in which the utility model product is typically placed when in use. They are used solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, these terms indicating directions or positional relationships should not be construed as limiting this utility model.
[0038] It should be further noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, these terms may refer to fixed, removable, or integral connections between components; they may also refer to mechanical or electrical connections; and they may also refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this invention based on the specific circumstances.
Claims
1. A high-precision integral potting fixture, characterized by: The invention comprises a glue-filling base (10) and a glue-filling pressing plate (30), wherein a positioning rod (20) is connected between the glue-filling base (10) and the glue-filling pressing plate (30), a fitting groove (11) is provided on the surface of the glue-filling base (10), a glue guide hole (12) is provided through one side of the fitting groove (11), a core rod (50) is installed between the glue-filling base (10) and the glue-filling pressing plate (30), and the core rod (50) and the glue guide hole (12) are kept concentric; The core rod (50) is provided with a rubber guide groove (51) on its surface, a rubber guide strip (80) is installed inside the fitting groove (11), a rubber strip pressing block (70) is installed above the rubber guide strip (80), and a rubber path stop screw (60) is threadedly connected to the rubber strip pressing block (70), and the position of the rubber path stop screw (60) and the rubber guide hole (12) are kept concentric.
2. The high-precision integral potting jig according to claim 1, characterized in that: A glue surface pressing block (40) is provided on one side of the glue pouring base (10) and the glue pouring pressing plate (30), and a circular groove is provided on the glue surface pressing block (40) on the glue pouring pressing plate (30), wherein the upper and lower end surfaces of the core rod (50) contact the glue surface pressing block (40) on the glue pouring base (10) and the glue pouring pressing plate (30).
3. The high-precision integral potting jig according to claim 2, characterized in that: The glue-filling base (10), the glue-filling pressing plate (30) and the glue surface pressing block (40) are made of aluminum alloy material, and the surfaces are all electroplated with Teflon coating.
4. The high-precision integral potting jig according to claim 1, characterized in that: A glue guiding channel (81) is provided inside the glue guiding strip (80).
5. The high-precision integral potting jig according to claim 4, characterized in that: A glue guide groove (51) is provided above the core rod (50).
6. The high-precision integral potting jig according to claim 5, characterized in that: The glue guiding groove (51) is arranged in a cross shape.
7. The high-precision integral potting jig according to claim 1, characterized in that: A lead terminal positioning block (90) is installed on one side of the glue-filling base (10), and a terminal positioning plate (91) is installed below the lead terminal positioning block (90).