Auxiliary jig of power adapter

Abstract

The utility model discloses an auxiliary jig for a power adapter, which relates to the technical field of jigs, is used for assembling a power adapter shell and a folding foot structure, and comprises a base, a positioning module is mounted on the end face of the base, and the positioning module can be butted with an inner cavity of the power adapter shell; a clamping groove used for positioning an elastic piece and an elastic piece fixing plate in the folding foot structure is formed in the end face of the positioning module, a first positioning column and a second positioning column are arranged on the clamping groove, and the second positioning column can elastically retract inwards relative to the first positioning column. The first positioning column and the second positioning column jointly act on the elastic piece fixing plate in a positioning mode, and the second positioning column further acts on the elastic piece in a positioning mode. When the power adapter shell is in butt joint with the positioning module, the power adapter shell covers the positioning module, so that the elastic sheet, the elastic sheet fixing plate and the power adapter shell are clamped and fixed; operation is simple, convenient and efficient, time for single-time assembly is sharply shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to an auxiliary fixture for a power adapter. Background Technology

[0002] With the widespread use of electronic devices, power adapters, as indispensable power supply components for various electronic devices, are receiving increasing attention for their efficient and precise manufacturing. In the structural composition of a power adapter, the assembly of the folding feet structure and the power adapter housing 18 has a crucial impact on overall product quality and production efficiency.

[0003] like Figure 1 As shown, the folding leg structure typically includes pins 15, spring contacts 16, and a spring contact retaining plate 17. These components work together to ensure a stable and safe connection between the power adapter and the external power outlet. Correspondingly, as... Figure 2 As shown, the inner cavity of the power adapter housing 18 is designed with a series of adapter components. For example, it is provided with a slot 19 specifically for receiving the pin 15 and a locking post 20 corresponding to the spring 16. The precise docking of the locking post 20 with the locking hole 21 on the spring 16 provides a reliable fixing point for the spring 16. In addition, for the spring fixing plate 17, the inner cavity is provided with a first guide post 22 and a locking block 23. The first guide post 22 is adapted to the second guide post 25 (with a guide hole) of the spring fixing plate 17 so as to achieve smooth docking of the two during assembly. The locking block 23 is used to complete a tight locking with the corresponding locking slot 24 on the spring fixing plate 17. Through such a series of mutually cooperating connection methods, the assembly of the folding foot structure and its stable connection with the power adapter housing 18 are achieved.

[0004] Traditional assembly methods rely primarily on manual labor; however, manual assembly inevitably has many drawbacks. On one hand, manual operation is inefficient, heavily influenced by factors such as worker skill level and work condition, making it difficult to meet the demands of large-scale, high-efficiency production, especially during peak order seasons when capacity bottlenecks become increasingly prominent. On the other hand, manual assembly is prone to errors in assembly precision due to fatigue, negligence, and other human factors, resulting in quality problems such as incomplete component connections and loose clamps, leading to increased product defect rates and increased production costs and after-sales maintenance burdens.

[0005] To effectively address the aforementioned issues and improve the efficiency and quality of the assembly process of the power adapter's folding foot structure and the power adapter housing 18, a specialized auxiliary fixture is urgently needed to optimize this production process and ensure the high efficiency, stability, and precision of product manufacturing. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] An auxiliary fixture for a power adapter, used for assembling a power adapter housing and a folding foot structure, includes a base, on the end face of which a positioning module is mounted, the positioning module being able to mate with the inner cavity of the power adapter housing;

[0008] The end face of the positioning module is provided with a slot for positioning the spring piece and the spring piece fixing plate in the folding foot structure. A first positioning post and a second positioning post are provided on the slot. The second positioning post can elastically retract relative to the first positioning post. The first positioning post and the second positioning post work together to position the spring piece fixing plate, and the second positioning post also positions the spring piece.

[0009] When the power adapter housing is aligned with the positioning module, the power adapter housing covers the positioning module so that the spring clip and spring clip fixing plate are snapped and fixed to the power adapter housing.

[0010] As a further embodiment of this utility model: a stepped groove is provided on one side of the card slot, the stepped groove is connected to the card slot, and is used to position the contact end of the spring piece.

[0011] As a further embodiment of this utility model: a blocking wall is formed on the inner side of the stepped groove and is arranged opposite to it.

[0012] As a further embodiment of this utility model: the positioning module includes a first fixing block fixed to the base and a second fixing block fixed to the end of the first fixing block away from the base. The first fixing block has an assembly cavity at its mating end corresponding to the second fixing block, and the second fixing block has a first sliding groove at its mating end corresponding to the first fixing block. The first sliding groove communicates with the assembly cavity.

[0013] An elastic component is provided inside the assembly cavity. The elastic component includes a telescopic spring and a movable column that abuts against the telescopic spring. The end of the movable column away from the telescopic spring extends along the first slide groove and out to the outside of the first slide groove to form the second positioning column.

[0014] As a further embodiment of this utility model: the end of the movable column that abuts against the telescopic spring is matched with the groove corresponding to the first sliding groove, so that the end of the movable column that abuts against the telescopic spring is restricted to the assembly cavity.

[0015] As a further embodiment of this utility model: a second sliding groove is provided along the periphery of the positioning module to mate with the inner cavity of the power adapter housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1) In the past, manual assembly required workers to repeatedly adjust the corresponding structure of the folding foot parts and the power adapter shell by eye and by hand. The process was complicated and time-consuming. The auxiliary fixture, with its positioning module and positioning column, allows the parts to quickly find the "positioning point". Workers can operate the process in a simple and efficient manner, which greatly reduces the time for a single assembly. When mass production, this process is easy to replicate, the production line pace is accelerated, the peak season capacity bottleneck is broken, and the product output is significantly increased.

[0018] 2) Manual assembly is prone to visual deviation and hand tremors, which can lead to component misalignment and poor snap-fit. The positioning module and positioning post of the fixture strictly control the spatial position. The second guide post of the spring fixing plate and the first guide post of the power adapter shell, as well as the spring and the snap-fit ​​post, are precisely aligned and snap-fitted firmly, which greatly reduces the defect rate, reduces rework and scrap losses, ensures product quality, and reduces the frequency and cost of after-sales maintenance.

[0019] 3) The internal space of the power adapter shell is cramped. When manually assembling the spring clip fixing plate, the hand space is limited, making it difficult to apply force to ensure that it is snapped into place. With the help of this fixture, the worker can hold the power adapter shell steadily. By combining the power adapter shell's own weight with the force applied during the process of covering the positioning module, the positioning module is used to accurately position and guide the spring clip fixing plate, and successfully snap it into place with the internal cavity locking block and other structures. This breaks the space constraints and improves the convenience of operation and the assembly success rate.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a structural diagram of the folding feet structure of the power adapter;

[0023] Figure 2 This is a structural diagram of the power adapter casing;

[0024] Figure 3 This is a schematic diagram of the existing manual assembly operation structure;

[0025] Figure 4 This is a schematic diagram of the operating structure of this utility model;

[0026] Figure 5This is a schematic diagram of the structure of the positioning spring and the spring fixing plate of this utility model through the positioning module;

[0027] Figure 6 This is a schematic diagram of the structure of this utility model;

[0028] Figure 7 This is a cross-sectional structural diagram of the present invention.

[0029] The reference numerals and names in the figure are as follows:

[0030] 1. Base; 2. Positioning module; 3. Slot; 4. First positioning post; 5. Second positioning post; 6. Step groove; 7. Blocking wall; 8. First fixing block; 9. Second fixing block; 10. Assembly cavity; 11. First slide groove; 12. Telescopic spring; 13. Movable post; 14. Second slide groove; 15. Pin; 16. Spring piece; 17. Spring piece fixing plate; 18. Power adapter shell; 19. Slot; 20. Locking post; 21. Locking hole; 22. First guide post; 23. Locking block; 24. Locking slot; 25. Second guide post. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-7 In this embodiment of the present invention, an auxiliary fixture for a power adapter is provided for assembling the power adapter housing 18 with the folding foot structure. It includes a base 1, and a positioning module 2 is installed on the end face of the base 1. The positioning module 2 can dock with the inner cavity of the power adapter housing 18.

[0033] The end face of the positioning module 2 is provided with a slot 3 for positioning the spring piece 16 and the spring piece fixing plate 17 in the folding foot structure. A first positioning post 4 and a second positioning post 5 are provided on the slot 3. The second positioning post 5 can elastically retract relative to the first positioning post 4. The first positioning post 4 and the second positioning post 5 jointly position the spring piece fixing plate 17, and the second positioning post 5 also positions the spring piece 16.

[0034] When the power adapter housing 18 is mated with the positioning module 2, the power adapter housing 18 covers the positioning module 2 so that the spring piece 16 and the spring piece fixing plate 17 are snapped and fixed with the power adapter housing 18.

[0035] In this utility model technical solution, the base 1 of the auxiliary fixture is equipped with a positioning module 2. The positioning module 2 is designed and manufactured according to the specific shape, size and other parameters of the inner cavity of the power adapter shell 18. It can accurately dock with it, so as to provide an accurate and stable placement and positioning reference for the power adapter shell 18 during the assembly operation, ensuring that the subsequent assembly steps are carried out based on the accurate initial position.

[0036] The end face of the positioning module 2 is provided with a slot 3. The shape and size of the slot 3 are designed according to the outline of the spring piece 16 and the spring piece fixing plate 17 in the folding foot structure. When the spring piece 16 and the spring piece fixing plate 17 are placed in the slot 3, they can be effectively restricted to a predetermined area to avoid arbitrary movement or misalignment during preparation and assembly, and to ensure that the relative positions of the two meet the assembly requirements.

[0037] The spring clip fixing plate 17 has a second guide post 25 structure, designed to be adapted and connected to the first guide post 22 inside the power adapter housing 18. The first positioning post 4 and the second positioning post 5 play a key role. The first positioning post 4 is designed to be directly positioned inside the second guide post 25 of the spring clip fixing plate 17, applying force constraints from different directions of the second guide post 25. This precisely controls the translation, rotation, and other degrees of freedom of the spring clip fixing plate 17 in the plane, ensuring that the second guide post 25 of the spring clip fixing plate 17 and the first guide post 22 inside the power adapter housing 18 are always accurately aligned. This lays a solid foundation for a smooth and error-free assembly process. As for the spring 16, since the inner cavity of the power adapter housing 18 has a corresponding locking post 20 for the spring 16, during the assembly process, in order to ensure that the spring 16 can smoothly dock with the locking post 20, the second positioning post 5 has an elastic retraction function. When the spring 16 approaches the locking post 20 in the inner cavity of the power adapter housing 18 as the assembly process progresses, the second positioning post 5 is squeezed and retracted to "make way", cleverly cooperating with the spring 16 to complete the precise docking with the locking post 20. This not only ensures that the installation process of the spring 16 is not hindered, but also guides the spring 16 to be accurately positioned by its own initial positioning.

[0038] The entire assembly process is interconnected and rationally designed. First, the pins 15 are accurately inserted into the slots 19 of the power adapter housing 18 to establish a preliminary and stable connection. Then, the power adapter housing 18 with the pins 15 installed is docked with the positioning module 2. At this time, the positioning module 2 plays a core role based on its positioning design for the spring 16 and the spring fixing plate 17. When the power adapter housing 18 covers the positioning module 2, with the positioning assistance of the positioning module 2, the spring 16 and the spring fixing plate 17 are tightly and precisely assembled with the corresponding snap-fit ​​parts inside the power adapter housing 18, thus achieving a stable connection between the folding foot structure and the power adapter housing 18. It is understandable that hearing a "click" sound indicates that the spring fixing plate 17 and the corresponding snap-fit ​​parts inside the power adapter housing 18 have completed the snap-fit. Furthermore, both the spring fixing plate 17 and the spring 16 have snap-fit ​​holes 21 corresponding to the second positioning post 5.

[0039] In summary, in the past, manual assembly required workers to repeatedly adjust the corresponding structure of the folding foot component and the power adapter shell 18 by eye and hand, a complicated and time-consuming process. The auxiliary fixture, with its positioning module 2 and positioning posts, allows the components to quickly find their "positioning points," making the process simple and efficient for workers. The time required for a single assembly is significantly reduced. In mass production, this process is easy to replicate, the production line pace is accelerated, and the bottleneck of peak season capacity is broken, resulting in a significant increase in product output. Manual assembly is prone to visual deviations and hand tremors, leading to component misalignment and poor engagement. The positioning module 2 and positioning posts of the fixture strictly control the spatial position. The second guide post 25 of the spring fixing plate 17 and the first guide post 22 of the power adapter shell 18... The spring clip 16 and the locking post 20 are precisely aligned and securely engaged, significantly reducing the defect rate, minimizing rework and scrap losses, ensuring product quality, and consequently reducing the frequency and cost of after-sales maintenance. The confined space within the power adapter housing 18 restricts hand movement during manual assembly of the spring clip fixing plate 17, making it difficult to apply force to ensure proper engagement. This fixture allows workers to firmly hold the power adapter housing 18, utilizing its own weight and the force applied during the covering of the positioning module 2. The positioning module 2 precisely positions and guides the spring clip fixing plate 17, successfully engaging it with the internal locking block 23 and other structures, breaking spatial constraints and improving operational convenience and assembly success rate.

[0040] In this embodiment of the present invention, a stepped groove 6 is provided on one side of the slot 3. The stepped groove 6 is connected to the slot 3 and is used to position the contact end of the spring piece 16.

[0041] A blocking wall 7 is formed on the inner side of the stepped groove 6 and is arranged opposite to it.

[0042] A blocking wall 7 is provided on the inner side of the stepped groove 6. Based on the positioning of the contact end of the spring piece 16, the blocking wall 7 further controls the movement of the spring piece 16. When the spring piece 16 is installed, the blocking wall 7 restricts its lateral sliding and excessive deformation. Especially during the assembly stress process, the blocking wall 7, together with the stepped groove 6, firmly "fixes" the spring piece 16, ensuring that the spring piece 16 and the corresponding structure of the power adapter shell 18 are snapped together as designed. Even if subjected to external force, it will not deviate from the position, which is suitable for the limited space and complex assembly requirements of the inner cavity of the power adapter shell 18. At the same time, the stepped groove 6 can form a "two-point line" positioning of the spring piece 16 with the second positioning post 5.

[0043] In this embodiment of the present invention, the positioning module 2 includes a first fixing block 8 fixed to the base 1 and a second fixing block 9 fixed to one end of the first fixing block 8 away from the base 1. The first fixing block 8 has an assembly cavity 10 corresponding to the mating end of the second fixing block 9, and the second fixing block 9 has a first sliding groove 11 corresponding to the mating end of the first fixing block 8. The first sliding groove 11 communicates with the assembly cavity 10.

[0044] An elastic component is provided in the assembly cavity 10. The elastic component includes a telescopic spring 12 and a movable column 13 that abuts against the telescopic spring 12. One end of the movable column 13 away from the telescopic spring 12 extends along the first slide groove 11 and to the outside of the first slide groove 11 to form the second positioning column 5.

[0045] The positioning module 2 is constructed by combining a first fixing block 8 and a second fixing block 9 on the base 1. This layered structure design ensures overall stability and facilitates the installation and functional realization of each component. The first fixing block 8 is provided with an assembly cavity 10, and the second fixing block 9 is provided with a corresponding first sliding groove 11, and the two are connected to form a clever internal space structure, providing a "dedicated space" for the placement and operation of the elastic component. The elastic component consists of a telescopic spring 12 and a movable column 13. The telescopic spring 12 is placed in the assembly cavity 10 and uses its elastic potential energy storage and release characteristics to drive the connected movable column 13. In the initial state, the telescopic spring 12 is in a certain pre-compressed or naturally extended state, applying elastic force to the movable column 13, causing the movable column 13 to extend outward along the connected first sliding groove 11. Its extended part forms the second positioning column 5 with special functions. This design based on spring force drive gives the second positioning column 5 the ability to elastically retract, meeting the complex requirements of flexible repositioning and precise positioning of the spring piece 16 and spring piece fixing plate 17 during the assembly process.

[0046] In this embodiment of the utility model, the end of the movable column 13 that abuts against the telescopic spring 12 is matched with the corresponding slot of the first sliding groove 11 to limit the movement of the movable column 13 and the telescopic spring 12 into the assembly cavity 10.

[0047] The end of the movable column 13 that abuts against the telescopic spring 12 forms a limiting fit with the corresponding slot of the first slide groove 11. This design is based on considerations of the working stability and safety of the elastic component. In the relatively enclosed space of the assembly cavity 10, when the telescopic spring 12 is compressed or releases its elastic potential energy, it will drive the movable column 13 to move along the first slide groove 11. The slot limit acts like a "restraint line" for the "root" of the movable column 13, effectively restricting the movable column 13 to move only within a preset direction and stroke range. When the spring rebounds and pushes the movable column 13 outward to become the second positioning column 5, the limiting structure prevents the movable column 13 from moving outward too much and detaching from the assembly cavity 10, avoiding failure of the elastic component and loss of positioning function due to detachment. When the movable column 13 is retracted by external force, the limit can also ensure that it will not be stuck in an unreasonable area due to excessive compression of the spring and deviation from the correct position, ensuring that the entire elastic positioning system can respond to the assembly action requirements in an orderly manner.

[0048] In this embodiment of the present invention, a second sliding groove 14 is provided along the periphery of the positioning module 2 to mate with the inner cavity of the power adapter housing 18.

[0049] The second slide 14 provides a precise "course" for the outer shell, allowing it to easily slide into the correct position. Together with the rest of the positioning module 2, the assembly error of each component is greatly reduced, the snap-fit ​​is tight and firm, significantly improving the success rate of one-time assembly, reducing rework, and improving production efficiency.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. An auxiliary fixture for a power adapter, used for assembling the power adapter housing and the folding leg structure, characterized in that, It includes a base, and a positioning module is installed on the end face of the base, the positioning module being able to dock with the inner cavity of the power adapter housing; The end face of the positioning module is provided with a slot for positioning the spring piece and the spring piece fixing plate in the folding foot structure. A first positioning post and a second positioning post are provided on the slot. The second positioning post can elastically retract relative to the first positioning post. The first positioning post and the second positioning post work together to position the spring piece fixing plate, and the second positioning post also positions the spring piece. When the power adapter housing is aligned with the positioning module, the power adapter housing covers the positioning module so that the spring clip and spring clip fixing plate are snapped and fixed to the power adapter housing.

2. The auxiliary fixture for a power adapter according to claim 1, characterized in that, A stepped groove is provided on one side of the slot, which is connected to the slot and is used to position the contact end of the spring piece.

3. The auxiliary fixture for a power adapter according to claim 2, characterized in that, A blocking wall is formed on the inner side of the stepped groove, and the two walls are arranged opposite each other.

4. The auxiliary fixture for a power adapter according to claim 1, characterized in that, The positioning module includes a first fixing block fixed to the base and a second fixing block fixed to the end of the first fixing block away from the base. The first fixing block has an assembly cavity at its mating end corresponding to the second fixing block, and the second fixing block has a first sliding groove at its mating end corresponding to the first fixing block. The first sliding groove communicates with the assembly cavity. An elastic component is provided inside the assembly cavity. The elastic component includes a telescopic spring and a movable column that abuts against the telescopic spring. The end of the movable column away from the telescopic spring extends along the first slide groove and out to the outside of the first slide groove to form the second positioning column.

5. An auxiliary fixture for a power adapter according to claim 4, characterized in that, The end of the movable column that abuts against the telescopic spring is matched with the corresponding slot of the first sliding groove to limit the end of the movable column that abuts against the telescopic spring into the assembly cavity.

6. The auxiliary fixture for a power adapter according to claim 1, characterized in that, A second sliding groove is provided along the periphery of the positioning module to mate with the inner cavity of the power adapter housing.

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