Universal circuit board assembly tool

Abstract

The utility model discloses a general type circuit board assembly tool, include: two first connecting strips of mutual symmetry and respectively set up between two ends of two first connecting strips and symmetric second connecting strip, two first connecting strips and two second connecting strips enclose and form the protection cavity for protecting circuit board, the position of first connecting strip and second connecting strip all are provided with the elevated pillar, and the both ends of second connecting strip are slidably provided with the connecting assembly along its length direction, and the connecting assembly is connected with circuit board, and the height of connecting assembly is greater than the highest height of component on circuit board. The utility model discloses a general type circuit board assembly tool, through the cooperation of first connecting strip, second connecting strip, elevated pillar, connecting assembly, solve the height difference of component on circuit board, and the component appears damage, collapse, tilt and other problems in the process of electric equipment.

Description

Technical Field

[0001] This utility model relates to the field of circuit board assembly technology, and specifically to a general-purpose circuit board assembly fixture. Background Technology

[0002] During the electrical assembly of printed circuit boards (PCBs), due to the varying heights of components, a dedicated PCB lifting fixture must be used to elevate the entire PCB to prevent damage, collapse, or tilting of components. Since many PCBs are currently designed using flexible connections to combine several boards into a single flexible board for production, subsequent electrical assembly cannot proceed without reinforcing the connecting circuit boards, inevitably leading to stress and breakage at the connections. To address these product requirements, the following methods are currently employed to meet production processing needs:

[0003] 1. To address the issue of the circuit board being raised overall, multiple support pillars are used, passing through the screw holes at the four corners of the circuit board. However, by directly passing the support pillars through the screw holes at the four corners of the circuit board, the weight of the entire circuit board is concentrated at the four corners. Furthermore, if improper handling during the assembly and inspection processes causes the support pillars to be subjected to force or collide, the resulting force will create a leverage effect through the support pillars. This force will be directly applied to the weak corners of the circuit board, which can easily lead to quality accidents, damage to the screw holes, and ultimately render the circuit board unusable.

[0004] 2. To address the issue of damage at the joints of flexible boards, different specialized reinforcement fixtures are designed based on the location of the mounting holes at the joints of different flexible boards. However, the spacing of the flexible joints varies among different flexible boards. As the number of such circuit boards increases, each type of flexible board requires the production of specially designed reinforcement fixtures. This is inconvenient for fixture management, and because the spacing at the joints cannot be determined in advance for the production of new products, the production cycle of the products is extended. Utility Model Content

[0005] The purpose of this utility model is to provide a universal circuit board assembly fixture to solve the problems of damage, collapse, and tilting of components during the electrical assembly process of existing circuit board assembly fixtures.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A general-purpose circuit board assembly fixture includes: two first connecting strips that are symmetrical to each other, and second connecting strips that are symmetrically disposed between the two ends of the two first connecting strips, wherein the two first connecting strips and the two second connecting strips enclose a protective cavity for protecting the circuit board;

[0008] Lifting supports are installed at the connection points of the first and second connecting strips. Connecting components are slidably installed at both ends of the second connecting strip along its length. The connecting components are connected to the circuit board, and the height of the connecting components is greater than the maximum height of the components on the circuit board.

[0009] Furthermore, the top and bottom of the first connecting strip are respectively vertically provided with corresponding first limiting strips, and the top and bottom of the second connecting strip are respectively vertically provided with second limiting strips corresponding to the first limiting strips.

[0010] Furthermore, the top of each end of the first connecting strip is provided with a first step, and the first step is located inside the first limiting strip; the bottom of each end of the second connecting strip is provided with a second step corresponding to the first step, and the second step is located inside the second limiting strip. The second step on the second connecting strip is engaged with the first step of the first connecting strip and is locked by the lifting support thread.

[0011] Furthermore, the aforementioned lifting support includes an upper connecting column and a lower connecting column, with the upper connecting column passing through the first connecting strip and the second connecting strip in sequence and being threadedly connected to the lower connecting column.

[0012] Furthermore, the top surface of the first connecting strip is flush with the top surface of the second connecting strip, and the bottom surface of the first connecting strip is flush with the bottom surface of the second connecting strip.

[0013] Furthermore, the length of the first limiting strip is equal to the length of the first connecting strip, and the length of the second limiting strip is equal to the length of the second connecting strip.

[0014] Furthermore, the two ends of the aforementioned second connecting strip are respectively provided with first through grooves along the length direction;

[0015] The connecting assembly includes a lug that is slidably disposed in the first through slot and a locking screw that passes through the first through slot and locks the lug. The end of the lug away from the locking screw is provided with a screw that is threadedly connected to the circuit board. The height of the screw is greater than the maximum height of the components on the circuit board.

[0016] Furthermore, the aforementioned lug is located below the second connecting strip, and the bottom of the locking screw passes through the first through groove and is connected and locked to the lug.

[0017] Furthermore, two corresponding second through slots are respectively opened at intervals along the length direction in the middle of the second connecting strip, and connecting components are slidably disposed on the second through slots.

[0018] Furthermore, two corresponding third through slots are respectively opened at intervals along the length direction of the first connecting strip.

[0019] This utility model has the following beneficial effects:

[0020] 1. The universal circuit board assembly fixture of this utility model solves the problems of component height differences on the circuit board and component damage, collapse, and tilting during electrical assembly by using the first connecting strip, the second connecting strip, the lifting support, and the connecting components in cooperation.

[0021] 2. The universal circuit board assembly fixture of this utility model can solve the problem of overall reinforcement of flexible circuit boards by setting a connecting component in the middle of the second connecting strip and cooperating with the connecting components at both ends of the second connecting strip.

[0022] 3. The universal circuit board assembly fixture of this utility model is provided with a first limiting strip and a second limiting strip, and a first step is provided on the first connecting strip and a second step is provided on the second connecting strip. The lifting support is threadedly connected to the first connecting strip and the second connecting strip respectively. After the fixture is used, it can be disassembled and placed uniformly. When in use, the corresponding parts can be selected for assembly according to the different specifications of the circuit board, so it can be reused. The fixture has strong versatility and covers all circuit boards. Furthermore, the production of new products does not require the design and processing of special fixtures. The corresponding parts can be selected for assembly according to the shape and size of the circuit board, which reduces the production time and processing cost of customized special fixtures and shortens the delivery cycle of new products.

[0023] 4. The universal circuit board assembly fixture of this utility model can be used in one piece for the entire process of single board production (including reflow soldering, water cleaning, moisture removal, manual soldering, inspection, and three-proofing). The entire process does not require disassembly, eliminating the ineffective work generated by disassembly and replacement in the previous processing process, shortening the product processing cycle and improving production efficiency. The height of the screws on the connecting components is greater than the maximum height of the components on the circuit board, which solves the quality problems such as damage caused by the height difference of components during electrical assembly. Attached Figure Description

[0024] Figure 1 A structural diagram of a general-purpose circuit board assembly fixture;

[0025] Figure 2 This is a schematic diagram of the structure of the first connecting strip;

[0026] Figure 3 This is a schematic diagram of the second connecting strip;

[0027] Figure 4 This is a schematic diagram of the auricle structure;

[0028] Figure 5 This is a schematic diagram of the structure of the upper connecting column.

[0029] In the diagram: 1. First connecting strip; 11. First limiting strip; 12. First step; 13. Third through groove; 2. Second connecting strip; 21. Second limiting strip; 22. Second step; 23. First through groove; 24. Second through groove; 3. Lifting support column; 31. Upper connecting column; 32. Lower connecting column; 4. Connecting assembly; 41. Support lug; 42. Locking screw; 43. Screw. Detailed Implementation

[0030] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0031] like Figure 1 As shown, an embodiment of this utility model provides a universal circuit board assembly fixture, including: two symmetrical first connecting strips 1 and two symmetrical second connecting strips 2 respectively disposed between the two ends of the two first connecting strips 1. The two first connecting strips 1 and the two second connecting strips 2 enclose a protective cavity for protecting the circuit board. Lifting support columns 3 are provided at the connection positions of the first connecting strips 1 and the second connecting strips 2. In this embodiment, the first connecting strips 1 and the second connecting strips 2 are fixedly connected, and the lifting support columns 3 are fixedly connected to the connection positions of the first connecting strips 1 and the second connecting strips 2, thereby forming a non-removable fixture. Fixtures of the same type can be stored uniformly, and thus can be reused multiple times for the same type of circuit board. Connecting components 4 are slidably disposed at both ends of the second connecting strip 2 along its length. The connecting components 4 connect to the circuit board. The connecting components 4 at both ends of the two second connecting strips 2 are used to connect to the four corners of the circuit board. The height of the connecting components 4 is greater than the highest height of the components on the circuit board, solving the problem of component damage, collapse, and tilting during electrical assembly due to height differences on the circuit board. Furthermore, the tooling in this embodiment can be used throughout the entire single-board production process without disassembly, eliminating the ineffective work caused by disassembly and replacement in previous processes, shortening the product processing cycle, and improving production efficiency. In this embodiment, the top surface of the first connecting strip 1 is flush with the top surface of the second connecting strip 2, and the bottom surface of the first connecting strip 1 is flush with the bottom surface of the second connecting strip 2.

[0032] Specifically, the two ends of the second connecting strip 2 are respectively provided with first through grooves 23 along the length direction; the connecting component 4 includes a lug 41 slidably disposed in the first through groove 23, and a locking screw 42 passing through the first through groove 23 and locking the lug 41. The lug 41 is provided with a slider that matches the first through groove 23. The slider of the lug 41 is provided with a screw hole. The rod of the locking screw 42 passes through the first through groove 23 and is threadedly connected to the screw hole on the lug 41. When the locking screw 42 is connected and locked to the lug 41, the lug 41 is limited; the end of the lug 41 away from the locking screw 42 is provided with a screw 43 threadedly connected to the circuit board. The height of the screw 43 is greater than the maximum height of the components on the circuit board, which solves the quality problems such as damage caused by the height difference of the components during the electrical assembly process; when it is necessary to slide the lug 41, the locking screw 42 can be loosened to slide, so that circuit boards of different sizes can be assembled. In this embodiment, the lug 41 is located below the second connecting strip 2, and the bottom of the locking screw 42 passes through the first through groove 23 and is connected and locked to the lug 41.

[0033] To facilitate the overall reinforcement of the flexible circuit board, two corresponding second through slots 24 are respectively opened at intervals along the length of the middle part of the second connecting strip 2, and connecting components 4 are slidably arranged on the second through slots 24.

[0034] Two corresponding third through slots 13 are respectively opened at intervals along the length direction of the first connecting strip 1. In this embodiment, the third through slot 13 can also slide to install the connecting component 4. The connecting component 4 can be selectively installed in the third through slot 13 according to the size of the circuit board. The design of the first through slot 23, the second through slot 24 and the third through slot 13 can reduce the weight of the tooling and achieve the purpose of lightweight design.

[0035] When in use, select the corresponding tooling according to the size of the circuit board, and connect the screw 43 in the connecting component 4 on the tooling to the circuit board. The protective cavity formed by the first connecting strip 1 and the second connecting strip 2 can protect the circuit board. The connecting component 4 can be adjusted in position according to the size of the circuit board, so that circuit boards of the same type but different sizes can be assembled. It also solves the problems of component height difference on the circuit board, such as damage, collapse, and tilting of components during electrical assembly.

[0036] like Figures 2 to 5As shown, in another embodiment of this utility model, a universal circuit board assembly fixture is provided. The top and bottom of the first connecting strip 1 are respectively vertically provided with corresponding first limiting strips 11, and the top and bottom of the second connecting strip 2 are respectively vertically provided with second limiting strips 21 corresponding to the first limiting strips 11. The length of the first limiting strip 11 is equal to the length of the first connecting strip 1, and the length of the second limiting strip 21 is equal to the length of the second connecting strip 2. The first limiting strips 11 and the second limiting strips 21 are used to restrict the position of the two connecting strips, facilitating the alignment and installation of the two connecting strips.

[0037] In another embodiment of this utility model, a general-purpose circuit board assembly fixture is provided. The top of both ends of the first connecting strip 1 is provided with a first step 12, and the first step 12 is located inside the first limiting strip 11. The bottom of both ends of the second connecting strip 2 is provided with a second step 22 corresponding to the first step 12, and the second step 22 is located inside the second limiting strip 21. The second step 22 on the second connecting strip 2 is fastened to the first step 12 of the first connecting strip 1 and is threadedly locked by the lifting support 3. The design of the first step 12 and the second step 22 allows the first step 12 and the second step 22 to cooperate with each other when installing the first connecting strip 1 and the second connecting strip 2. In other embodiments of this utility model, a positioning pin can be provided on the first step 12 or the second step 22 to facilitate the positioning of the first connecting strip 1 and the second connecting strip 2.

[0038] The lifting support column 3 includes an upper connecting column 31 and a lower connecting column 32. The upper connecting column 31 passes through the first connecting bar 1 and the second connecting bar 2 in sequence and is threadedly connected to the lower connecting column 32. Corresponding through holes are opened at the first step 12 of the first connecting bar 1 and the second step 22 of the second connecting bar 2. The upper connecting column 31 includes a connecting part and a threaded part connected axially in sequence. The outer diameter of the threaded part is smaller than the outer diameter of the connecting part, and the bottom outer wall of the threaded part is provided with external threads. The top of the lower connecting column 32 is provided with a threaded hole along the axial direction that is threaded to the threaded part of the upper connecting column 31. The threaded part of the upper connecting column 31 passes through the through holes on the first connecting bar 1 and the second connecting bar 2 in sequence and is connected to the lower connecting column 32. This arrangement facilitates the installation and disassembly of the lifting support column 3.

[0039] In this embodiment, by opening a first step 12 on the first connecting strip 1 and a second step 22 on the second connecting strip 2, the upper connecting post 31 and the lower connecting post 32 of the support post 3 are raised, so that the tooling can be disassembled as a whole. After use, the tooling can be disassembled and placed uniformly. When in use, the corresponding parts can be selected for assembly according to the different specifications of the circuit board, so it can be reused. The tooling has strong versatility and covers all circuit boards. Furthermore, the production of new products does not require the design and processing of special tooling. The corresponding parts can be selected for assembly according to the shape and size of the circuit board, which reduces the production time and processing cost of customized special tooling and shortens the delivery cycle of new products.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 general-purpose circuit board assembly fixture, characterized in that, include: Two symmetrical first connecting strips (1) and two symmetrical second connecting strips (2) respectively disposed between the two ends of the two first connecting strips (1), the two first connecting strips (1) and the two second connecting strips (2) together form a protective cavity for protecting the circuit board; Lifting support (3) is provided at the connection position of the first connecting strip (1) and the second connecting strip (2). The two ends of the second connecting strip (2) are respectively provided with connecting components (4) along its length direction. The connecting components (4) are connected to the circuit board, and the height of the connecting components (4) is greater than the maximum height of the components on the circuit board.

2. The universal circuit board assembly fixture according to claim 1, characterized in that, The top and bottom of the first connecting strip (1) are respectively vertically provided with corresponding first limiting strips (11), and the top and bottom of the second connecting strip (2) are respectively vertically provided with second limiting strips (21) corresponding to the first limiting strips (11).

3. The universal circuit board assembly fixture according to claim 2, characterized in that, The top of each end of the first connecting strip (1) is provided with a first step (12), and the first step (12) is located inside the first limiting strip (11); the bottom of each end of the second connecting strip (2) is provided with a second step (22) corresponding to the first step (12), and the second step (22) is located inside the second limiting strip (21). The second step (22) on the second connecting strip (2) is fastened to the first step (12) of the first connecting strip (1) and is threadedly locked by the lifting support (3).

4. The universal circuit board assembly fixture according to claim 3, characterized in that, The lifting support (3) includes an upper connecting column (31) and a lower connecting column (32). The upper connecting column (31) passes through the first connecting strip (1) and the second connecting strip (2) in sequence and is threadedly connected to the lower connecting column (32).

5. The universal circuit board assembly fixture according to claim 3, characterized in that, The top surface of the first connecting strip (1) is flush with the top surface of the second connecting strip (2), and the bottom surface of the first connecting strip (1) is flush with the bottom surface of the second connecting strip (2).

6. The universal circuit board assembly fixture according to claim 2, characterized in that, The length of the first limiting strip (11) is equal to the length of the first connecting strip (1), and the length of the second limiting strip (21) is equal to the length of the second connecting strip (2).

7. The general-purpose circuit board assembly fixture according to any one of claims 1 to 6, characterized in that, The second connecting strip (2) has first through grooves (23) at both ends along its length. The connecting assembly (4) includes a lug (41) slidably disposed in the first through groove (23) and a locking screw (42) passing through the first through groove (23) and locking the lug (41). The end of the lug (41) away from the locking screw (42) is provided with a screw (43) threadedly connected to the circuit board. The height of the screw (43) is greater than the maximum height of the components on the circuit board.

8. The universal circuit board assembly fixture according to claim 7, characterized in that, The lug (41) is located below the second connecting strip (2), and the bottom of the locking screw (42) passes through the first through groove (23) and is connected and locked to the lug (41).

9. The universal circuit board assembly fixture according to claim 7, characterized in that, The second connecting strip (2) has two corresponding second through slots (24) spaced apart along its length in the middle, and the connecting component (4) is slidably disposed on the second through slot (24).

10. The universal circuit board assembly fixture according to claim 7, characterized in that, Two corresponding third through slots (13) are respectively opened at intervals along the length direction of the first connecting strip (1).

Images