A tooling jig suitable for a vacuum potting process

Abstract

The utility model discloses a kind of tooling jigs suitable for vacuum potting process, which is composed of potting stator jig main body, lower fixed platform and upper fixed platform, etc., and the lower fixed platform and the upper fixed platform are respectively located at the bottom and the top of the jig main body. The upper fixed platform is provided with a potting port and a support cylinder. The flow guide groove of the positioning disc at the bottom of the support cylinder is in communication with the potting port, which is beneficial to the uniform flow of glue. The positioning groove of the lower fixed platform is nestedly connected with the positioning disc. The inner side groove corresponds to the stator core and the framework, achieving precise positioning. In addition, the positioning rod in the jig main body is connected with the lower fixed platform and the upper fixed platform through the upper and lower screws. The waist-shaped holes on both sides of the upper fixed platform can be compatible with single-side terminal shell products. This tooling jig solves the problems of inaccurate stator fixation, uneven glue flow and poor compatibility in the prior art, and can improve the potting quality and meet the diversified production needs.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum potting technology, specifically relating to a tooling fixture suitable for vacuum potting processes. Background Technology

[0002] The process of injecting or filling potting materials into the interior or surface gaps of a target workpiece under negative pressure is aimed at solving the problems of air bubbles, voids, and incomplete filling that exist in traditional atmospheric pressure potting by eliminating air during the potting process, and ultimately improving the product's sealing performance, stability, environmental resistance and service life.

[0003] However, the existing tooling fixtures used in vacuum potting processes are not precise enough in fixing the potting stator, which causes the stator position to shift during the potting process, affecting the potting quality. The uneven distribution of the potting adhesive also results in localized insufficient or excessive adhesive in the potted product, reducing product performance. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling fixture suitable for vacuum potting process, so as to solve the problems mentioned in the background art that the existing tooling fixtures for vacuum potting process are not precise enough in fixing the potting stator, which leads to the stator position shift during the potting process, affecting the potting quality, and the uneven flow of potting glue, resulting in local insufficient or excessive glue in the potted product, thus reducing product performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tooling fixture suitable for vacuum potting process, comprising a potting stator fixture body and a potting stator, wherein a lower fixing platform is provided at the bottom of the potting stator fixture body and an upper fixing platform is provided at the top of the potting stator fixture body.

[0006] Preferably, a filling port is provided at the middle position inside the upper fixed platform, and a support cylinder is provided at the bottom position of the upper fixed platform, with the support cylinder corresponding to the internal structure of the stator.

[0007] Preferably, a positioning plate is provided at the bottom of the support cylinder, and a guide groove is horizontally opened in the middle of the positioning plate, which is connected to the filling port.

[0008] Preferably, a positioning groove is provided in the middle of the lower fixed platform, the positioning groove corresponds to the positioning plate, and the support cylinder and the lower fixed platform are connected by the positioning groove and the positioning plate nested together.

[0009] Preferably, a first groove is provided at the inner side of the lower fixed platform, and a second groove is provided at the inner side of the first groove, with the first groove and the second groove corresponding to the iron core and the frame of the stator, respectively.

[0010] Preferably, a positioning rod is arranged in an array inside the main body of the potting stator fixture, with an upper screw at the upper part of the positioning rod, a lower screw at the lower part of the positioning rod, and a limiting part at the middle of the positioning rod.

[0011] Preferably, the lower fixed platform has an array of threaded holes inside, and the positioning rod is threadedly connected to the threaded holes through the lower screw. The upper fixed platform has an array of positioning holes inside, and the upper fixed platform corresponds to the upper screw through the positioning holes. The upper screw is fixed to the upper fixed platform by a clamping nut provided at the top.

[0012] Preferably, the upper fixing platform has left and right oblong holes on the left and right sides respectively. The oblong holes are also compatible with single-sided terminal shell products. After vacuuming, the required glue is continuously added from the potting port and flows evenly to both sides through the guide groove.

[0013] Compared with the prior art, this utility model provides a tooling fixture suitable for vacuum filling process, which has the following beneficial effects: Through the design of the filling port, support cylinder, positioning plate, guide groove, positioning groove, first groove, and second groove, the support cylinder corresponds to the internal structure of the stator, extending deep into the stator to provide stable and precise internal support. This ensures that the stator will not shake or shift due to external forces or glue flow during the filling process, guaranteeing the accuracy and stability of the filling. The first and second grooves on the inner side of the lower fixing platform correspond to the stator's core and frame, respectively, providing precise external positioning of the stator and further enhancing its stability in the tooling fixture. This ensures the stator is in the optimal position during filling, improving filling quality. The filling port, located in the middle of the upper fixing platform, provides an accurate injection point for the filling glue. The filling port is connected to the horizontally opened guide groove in the middle of the positioning plate. When the glue is injected from the filling port, it flows evenly to both sides through the guide groove, ensuring uniform distribution of the glue around the stator and avoiding localized glue accumulation. Excessive or insufficient water content ensures a more uniform and consistent potting effect, effectively improving product performance and quality. The positioning plate at the bottom of the support cylinder corresponds to the positioning groove in the middle of the lower fixed platform, and their nested connection creates a stable connection structure between the upper fixed platform, support cylinder, and lower fixed platform. This connection method not only ensures the overall stability of the tooling fixture but also withstands the pressure of the glue and other external forces during the potting process, preventing parts from loosening or separating and ensuring the smooth progress of the potting process. Meanwhile, the fixed platform is made of high-temperature resistant plastic material, which maintains stable physical and chemical properties under these conditions and will not soften or deform due to temperature increases. This ensures the dimensional accuracy and structural stability of the tooling fixture, guaranteeing the positioning accuracy and potting quality during stator potting, and preventing stator position shift due to fixture deformation, which would affect the potting effect.

[0014] The potting stator fixture body is equipped with a positioning rod, upper screw, lower screw, limiting part, and clamping nut. Positioning rods are arranged in an array inside the fixture body, and threaded holes are arranged in an array inside the lower fixing platform. The positioning rods are threadedly connected to the threaded holes via the lower screw. This threaded connection method is simple and quick to install, enabling rapid connection between the lower fixing platform and the potting stator fixture body. Furthermore, the threaded connection has good self-locking properties, ensuring a stable connection between the lower fixing platform and the fixture body during potting, preventing loosening due to vibration or external forces. The upper fixing platform is also equipped with an array of positioning holes, corresponding to the upper screws on the positioning rods. This corresponding arrangement ensures precise positioning during the installation of the upper fixing platform, guaranteeing... The relative positional accuracy between the upper and lower fixed platforms is ensured. A clamping nut is installed at the top of the upper screw, allowing for fine-tuning of the upper fixed platform's height by tightening or loosening it. This adapts to the height requirements of different stator products, enhancing the versatility and adaptability of the tooling fixture. A limiting part is located in the middle of the positioning rod, playing a crucial limiting role. During the installation of the upper fixed platform, the limiting part restricts its downward movement, preventing excessive downward pressure that could damage the stator or other components. Furthermore, throughout the entire use of the tooling fixture, the limiting part helps maintain a reasonable distance between the upper and lower fixed platforms, ensuring the structural stability and reliability of the tooling fixture and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the bottom of the upper fixed platform in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the top of the upper fixed platform in this utility model.

[0018] Figure 4 This is a schematic diagram of the lower fixed platform in this utility model.

[0019] Figure 5 This is a schematic diagram of the positioning rod in this utility model.

[0020] In the diagram: 1. Main body of the potting stator fixture; 2. Potting stator; 3. Lower fixed platform; 4. Upper fixed platform; 5. Potting port; 6. Positioning rod; 7. Waist-shaped hole; 8. Positioning hole; 9. Clamping nut; 10. Support cylinder; 11. Positioning plate; 12. Guide groove; 13. Threaded hole; 14. First groove; 15. Second groove; 16. Positioning groove; 17. Lower screw; 18. Upper screw; 19. Limiting part. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this embodiment, a specific implementation step of a tooling fixture suitable for vacuum potting process is as follows: Align the lower screw 17 at the lower part of the positioning rod 6 with the threaded holes 13 arranged in an array inside the lower fixed platform 3, and screw the lower screw 17 into the threaded holes 13 by rotation, so that the positioning rod 6 is fixed on the lower fixed platform 3. Since the positioning rod 6 has a limiting part 19 in the middle position, it is necessary to ensure that the position of the limiting part 19 is appropriate during the screwing process to provide an accurate positioning reference for the subsequent installation of the upper fixed platform 4. Align the positioning hole 8 inside the upper fixed platform 4 with the upper screw 18 at the upper part of the positioning rod 6, so that the upper fixed platform 4 is fitted onto the upper screw 18. Then, install the clamping nut 9 at the top position of the screw 18, and tighten the clamping nut. The mother 9 securely fixes the upper fixed platform 4 onto the positioning rod 6, ensuring accurate relative positioning between the upper fixed platform 4 and the lower fixed platform 3. The positioning disc 11 at the bottom of the support cylinder 10 is aligned with the positioning groove 16 located in the middle of the lower fixed platform 3. The positioning disc 11 is then placed into the positioning groove 16, completing the nested connection between the support cylinder 10 and the lower fixed platform 3. This ensures the support cylinder 10 is stably installed on the lower fixed platform 3, and that the support cylinder 10 corresponds to the internal structure of the stator, providing internal support for subsequent stator placement. The stator 2 to be potted is then placed on the lower fixed platform 3, with the stator core portion correspondingly placed into the first groove 14 located inside the lower fixed platform 3, and the stator skeleton portion correspondingly placed... The stator 2 is placed into the second groove 15 located inside the first groove 14. This method ensures precise positioning of the stator 2 on the lower fixed platform 3, guaranteeing stable positioning of the stator during the potting process. The assembled tooling fixture with the stator 2 placed inside is then placed in a vacuum environment. The vacuum pump is turned on to evacuate the tooling fixture, removing internal air to meet the requirements of the vacuum potting process. After evacuation, the required potting adhesive is continuously added through the potting port 5 located in the middle of the upper fixed platform 4. The adhesive flows evenly to both sides along the guide groove 12, which is connected to the potting port 5, thus achieving uniform potting of the stator 2. Since the guide groove 12 is located in the positioning plate 11... The positioning plate 11 is connected to the support cylinder 10, and the support cylinder 10 corresponds to the internal structure of the stator. Therefore, the glue can effectively flow to the part of the stator that needs to be potted. After the potting glue has fully filled the part of the stator 2 that needs to be potted and achieved the expected potting effect, stop adding glue. After the potting glue has initially cured, first unscrew the clamping nut 9, remove the upper fixing platform 4 from the positioning rod 6, then remove the stator 2 from the lower fixing platform 3, then remove the support cylinder 10 from the positioning groove 16 of the lower fixing platform 3, and finally unscrew the positioning rod 6 from the threaded hole 13 of the lower fixing platform 3 to complete the disassembly of the tooling fixture. Clean and maintain the disassembled tooling fixture for future use.

[0023] like Figure 1-5As shown, a filling port 5 is provided at the middle position inside the upper fixed platform 4, and a support cylinder 10 is provided at the bottom position of the upper fixed platform 4. The support cylinder 10 corresponds to the internal structure of the stator. A positioning plate 11 is provided at the bottom position of the support cylinder 10. A guide groove 12 is horizontally opened at the middle position of the positioning plate 11. The guide groove 12 is connected to the filling port 5. A positioning groove 16 is provided at the middle position inside the lower fixed platform 3. The positioning groove 16 corresponds to the positioning plate 11. The support cylinder 10 and the lower fixed platform 3 are nested and connected through the positioning groove 16 and the positioning plate 11. A first groove 14 is provided at the inner side position of the lower fixed platform 3. A second groove 15 is provided at the inner side position of the first groove 14. The first groove 14 and the second groove 15 correspond to the iron core and the frame of the stator, respectively.

[0024] Preferably, the support cylinder 10 corresponds to the internal structure of the stator and can penetrate deep into the stator to provide stable and precise internal support. This ensures that the stator will not shake or shift due to external forces or glue flow during the potting process, guaranteeing the accuracy and stability of the potting. The first groove 14 and the second groove 15 on the inner side of the lower fixed platform 3 correspond to the iron core and frame of the stator, respectively, providing precise positioning of the stator from the outside. This further enhances the stability of the stator in the tooling fixture, ensuring that the stator is in the optimal position during potting, which is beneficial to improving the potting quality. The potting port 5 located in the middle of the upper fixed platform 4 provides an accurate injection position for the potting glue. The potting port 5 is connected to the horizontally opened guide groove 12 in the middle of the positioning plate 11. When the glue is injected from the potting port 5, it can flow evenly to both sides through the guide groove 12. This ensures that the glue is evenly distributed around the stator, avoiding situations where there is too much or too little glue in some areas, thus improving the potting process. The effect is more uniform and consistent, effectively improving the performance and quality of the product. The positioning plate 11 set at the bottom of the support cylinder 10 corresponds to the positioning groove 16 set in the middle of the lower fixed platform 3. Through the nesting connection between the two, a stable connection structure is formed between the upper fixed platform 4, the support cylinder 10 and the lower fixed platform 3. This connection method not only ensures the stability of the overall structure of the tooling fixture, but also can withstand the pressure of glue and other external forces during the potting process, without the occurrence of loosening or separation of parts, ensuring the smooth progress of the potting process. At the same time, the fixed platform is made of high-temperature resistant plastic material. High-temperature resistant plastic material can maintain stable physical and chemical properties under these conditions and will not soften or deform due to temperature rise, ensuring the dimensional accuracy and structural stability of the tooling fixture, ensuring the positioning accuracy and potting quality of the stator during potting, and avoiding stator position displacement due to fixture deformation, which would affect the potting effect.

[0025] like Figure 1-5As shown, positioning rods 6 are arranged in an array inside the main body 1 of the potting stator fixture. An upper screw 18 is set at the upper part of the positioning rod 6, a lower screw 17 is set at the lower part of the positioning rod 6, and a limiting part 19 is set at the middle position of the positioning rod 6. Threaded holes 13 are arranged in an array inside the lower fixing platform 3. The positioning rod 6 is threadedly connected to the threaded holes 13 through the lower screw 17. Positioning holes 8 are arranged in an array inside the upper fixing platform 4. The upper fixing platform 4 is corresponding to the upper screw 18 through the positioning holes 8. The upper screw 18 is fixed to the upper fixing platform 4 by a clamping nut 9 set at the top position.

[0026] Preferably, the main body 1 of the potting stator fixture has a positioning rod 6 arranged in an array inside, and the lower fixed platform 3 has a threaded hole 13 arranged in an array inside. The positioning rod 6 is threadedly connected to the threaded hole 13 by a lower screw 17. This threaded connection method is simple and quick to install, and can quickly connect the lower fixed platform 3 to the main body 1 of the potting stator fixture. Moreover, the threaded connection has good self-locking properties, which can ensure that the connection between the lower fixed platform 3 and the fixture body 1 is stable during the potting process and will not loosen due to vibration or external force. The upper fixed platform 4 has a positioning hole 8 arranged in an array inside, which corresponds to the upper screw 18 on the upper part of the positioning rod 6. Through this corresponding arrangement, precise positioning can be achieved when installing the upper fixed platform 4, ensuring that the upper fixed platform 4 and the lower fixed platform are properly connected. The relative positional accuracy between the upper and lower fixed platforms 3 is ensured. Meanwhile, a clamping nut 9 is provided at the top of the upper screw 18, allowing for fine-tuning of the height of the upper fixed platform 4 by tightening or loosening the clamping nut 9. This adapts to the height requirements of different stator products, enhancing the versatility and adaptability of the tooling fixture. A limiting part 19 is provided in the middle of the positioning rod 6, playing a crucial limiting role. When installing the upper fixed platform 4, the limiting part 19 restricts the downward movement of the upper fixed platform 4, preventing excessive downward pressure that could damage the stator or other components. Furthermore, throughout the entire use of the tooling fixture, the limiting part 19 helps maintain a reasonable distance between the upper and lower fixed platforms, ensuring the structural stability and reliability of the tooling fixture and extending its service life.

[0027] like Figure 1-5 As shown, the upper fixed platform 4 has left and right oblong holes 7 on the left and right sides respectively. The oblong holes 7 are also compatible with single-sided terminal shell products. After vacuuming, the required glue is continuously added from the potting port 5 and flows evenly to both sides through the guide groove 12.

[0028] Optionally, the waist-shaped holes 7 on the left and right sides of the upper fixing platform 4 greatly enhance the versatility of the tooling fixture, making it compatible with single-sided terminal shell products. This means that the tooling fixture is no longer limited to a specific type of stator product and can be applied to products with various structural forms. This effectively reduces the need for frequent tooling fixture changes due to product diversification, lowers production costs, and improves production efficiency. It also enables enterprises to better cope with different customer needs and product types. After vacuuming, the required glue is continuously added from the potting port 5. The glue flows evenly to both sides through the guide groove 12. The vacuuming operation can remove air from the stator and the tooling fixture, preventing the formation of air bubbles during the potting process, thereby improving the density of the potting.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling fixture suitable for vacuum potting process, comprising a potting stator fixture body (1) and a potting stator (2), characterized in that: The bottom of the potting stator fixture body (1) is provided with a lower fixing platform (3), and the top of the potting stator fixture body (1) is provided with an upper fixing platform (4).

2. The tooling fixture suitable for vacuum potting process according to claim 1, characterized in that: A filling port (5) is provided in the middle of the upper fixed platform (4), and a support cylinder (10) is provided at the bottom of the upper fixed platform (4). The support cylinder (10) corresponds to the internal structure of the stator.

3. A tooling fixture suitable for vacuum potting process according to claim 2, characterized in that: A positioning plate (11) is provided at the bottom of the support cylinder (10), and a guide groove (12) is horizontally opened in the middle of the positioning plate (11). The guide groove (12) is connected to the filling port (5).

4. A tooling fixture suitable for vacuum potting process according to claim 3, characterized in that: A positioning groove (16) is provided in the middle of the lower fixed platform (3). The positioning groove (16) corresponds to the positioning plate (11). The support cylinder (10) and the lower fixed platform (3) are nested and connected through the positioning groove (16) and the positioning plate (11).

5. A tooling fixture suitable for vacuum potting process according to claim 4, characterized in that: A first groove (14) is provided on the inner side of the lower fixed platform (3), and a second groove (15) is provided on the inner side of the first groove (14). The first groove (14) and the second groove (15) correspond to the iron core and the frame of the stator, respectively.

6. A tooling fixture suitable for vacuum potting process according to claim 1, characterized in that: The main body (1) of the potting stator fixture has a positioning rod (6) arranged in an array at the internal position. The upper part of the positioning rod (6) is set as an upper screw (18), the lower part of the positioning rod (6) is set as a lower screw (17), and the middle part of the positioning rod (6) is set as a limit part (19).

7. A tooling fixture suitable for vacuum potting process according to claim 6, characterized in that: The lower fixed platform (3) has a series of threaded holes (13) arranged inside. The positioning rod (6) is threadedly connected to the threaded hole (13) through the lower screw (17). The upper fixed platform (4) has a series of positioning holes (8) arranged inside. The upper fixed platform (4) corresponds to the upper screw (18) through the positioning hole (8). The upper screw (18) is fixed to the upper fixed platform (4) through the clamping nut (9) arranged at the top.

8. A tooling fixture suitable for vacuum potting process according to claim 1, characterized in that: The upper fixed platform (4) has left and right waist-shaped holes (7) on the left and right sides respectively. The waist-shaped holes (7) are also compatible with single-sided terminal shell products. After vacuuming, the required glue is continuously added from the potting port (5) and flows evenly to both sides through the guide groove (12).

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