Tool structure for assembling and adjusting circuit board assembly

Abstract

The utility model relates to the technical field of production technology, and discloses a tooling structure for installing and adjusting a circuit board assembly, which comprises a tooling plate, the appearance size of the tooling plate is not smaller than the size of a circuit substrate in the circuit board assembly, the tooling plate is provided with a plurality of support columns corresponding to mounting holes of the circuit board assembly, and the support columns are arranged on the tooling plate. One end of the pillar is installed on the tool plate, the other end of the pillar is fixed with the circuit board assembly through a fastener, and the pillar is higher than a component on the circuit board assembly. According to the tool structure provided by the utility model, the circuit board assembly is arranged on the tool plate, so that the problem of non-uniform stress of the circuit board assembly can be avoided in the production assembly sequence turning process, a protection effect is achieved, meanwhile, the product reliability can be improved, and the tool structure has the characteristics of simple structural design, low cost, convenience in operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology, specifically to a tooling structure for assembling and adjusting circuit board assemblies. Background Technology

[0002] The circuit board assemblies of high-power switching power supplies undergo assembly and testing before installation. With the development of power electronics technology, the requirements for power supply systems are becoming increasingly stringent; smaller size and higher power density are key directions for the development of switching power supply technology. Switching power supplies mainly consist of functional circuits such as EMI circuits, surge suppression, power factor correction, high-voltage filtering, DC / DC conversion, microcontroller control, and auxiliary components. In current technology, to improve the utilization of internal space, these functional circuits are typically integrated onto a single circuit board. However, the electronic components used in each functional circuit vary in weight, and the components soldered or mounted on the circuit board can be heavy or light. Since the main substrate of the circuit board is mostly FR4, uneven stress during production and assembly can easily cause components on the circuit board to detach or have poor soldering, and even damage the copper foil on the circuit board. This greatly complicates debugging and troubleshooting, increases production costs, and reduces product reliability. Summary of the Invention

[0003] To address the problems in existing high-power switching power supply products where various functional circuits are integrated onto a single circuit board without any protection during production assembly, leading to issues such as solder joint detachment or poor soldering of electronic components, damage or breakage of copper foil on the circuit board, and difficulties in maintenance, debugging, and troubleshooting, this utility model provides a tooling structure for assembling and adjusting circuit board assemblies, which features a simple structure and low cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A tooling structure for assembling and adjusting circuit board assemblies is provided for assembly and adjustment during the manufacturing process of circuit board assemblies. The tooling structure includes a tooling plate whose external dimensions are not less than the dimensions of the circuit board substrate in the circuit board assembly. The tooling plate is provided with a plurality of pillars corresponding to the mounting holes of the circuit board assembly. One end of the pillar is fixed to the tooling plate, and the other end of the pillar is fixed to the circuit board assembly by fasteners. The height of the pillar is greater than the height of the components on the circuit board assembly.

[0006] Furthermore, one end of the support column is fixed to the tooling plate by welding or riveting, and the other end of the support column is provided with an internal threaded hole. The circuit board assembly is fixed by fasteners that cooperate with the internal threaded hole.

[0007] Furthermore, the support column is machined into a single unit with the tooling plate by CNC milling. The other end of the support column is provided with an internal threaded hole, and the circuit board assembly is fixed by fasteners that cooperate with the internal threaded hole.

[0008] Furthermore, both ends of the support column are provided with internal threaded holes. One end of the support column is fixed to the tooling plate by countersunk screws engaging with the internal threaded holes; the other end of the support column is installed by fasteners engaging with the internal threaded holes to fix the circuit board assembly.

[0009] Preferably, the fasteners mentioned above are screw assemblies.

[0010] Furthermore, one end of the support column is provided with an internal threaded hole, and the other end is provided with an external thread; one end of the support column is fixed to the tooling plate by countersunk screws engaging with the internal threaded hole, and the other end of the support column is installed by fasteners engaging with the external thread to fix the circuit board assembly.

[0011] Furthermore, the support column is provided with a through hole; one end of the support column is mounted on the tooling plate by a countersunk screw, the mounting surface of the countersunk screw is on the tooling plate, the countersunk screw passes through the tooling plate, the through hole of the support column and the mounting hole of the circuit board, and the other end of the support column is fixed to the circuit board assembly by fasteners through the countersunk screw.

[0012] Preferred fasteners are flat washers, spring washers, and nuts.

[0013] Preferably, the tooling plate is made of aluminum alloy. Aluminum alloy is corrosion-resistant, lightweight, and does not require surface anti-corrosion treatment.

[0014] The tooling structure for assembling and adjusting circuit board assemblies provided by this utility model, using the above-mentioned technical solution, has the following effective effects: by mounting the circuit board assembly on the tooling plate with fasteners, the problem of uneven force on the circuit board assembly can be avoided during the production assembly process, thus playing a protective role. It has the characteristics of simple structural design, low cost, and simple and convenient operation, and at the same time, it can improve product reliability. Attached Figure Description

[0015] Figure 1 The three-view diagram is an embodiment of the tooling structure for assembling and adjusting a circuit board assembly according to this utility model.

[0016] Figure 2 This is a front view of the tooling plate in an embodiment of the tooling structure for assembling and adjusting a circuit board assembly according to the present invention.

[0017] Figure 3 This is a front view of the assembled circuit board assembly in an embodiment of the tooling structure for assembling and adjusting a circuit board assembly according to the present invention.

[0018] In the diagram: 1. Tooling plate; 2. Support column; 3. Circuit board assembly; 4. Screw assembly. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 、 Figure 2 、 Figure 3 As shown in the figure, in a tooling structure embodiment of the present invention for assembling a circuit board assembly, there are tooling plate 1, support column 2, and circuit board assembly 3. Tooling plate 1 is made of 6061 material and is machined by CNC milling. It has the characteristics of high strength, light weight and good thermal conductivity. Support column 2 has internal threads at both ends. Circuit board assembly 3 includes functional circuits such as EMI circuit, surge suppression, power factor correction, high voltage filtering, DC / DC conversion, microcontroller control, and auxiliary products.

[0021] In this embodiment, one end of the support column 2 is fixed to the fixture plate 1 with countersunk screws. After the electronic components on the circuit board assembly 3 are soldered or installed, the other end of the support column 2 is fixed to the fixture plate 1 with screw assembly 4. This can increase the strength and protect the circuit board assembly 3. During the production assembly process, it can also protect the solder joints and copper foil of the electronic components on the circuit board assembly 3 from stress. During the manufacturing process, the circuit board assembly 3 is fixed to the fixture plate 1 for performance debugging. After meeting the various indicators of the product, it is removed and installed in the whole machine. This can improve the assembly and debugging efficiency of the whole machine and reduce the production cost.

[0022] Based on the above, the tooling structure for assembling and adjusting circuit board components according to this utility model has the characteristics of simple structure, low cost, and simple and convenient operation, while reducing the production quality cost and improving product reliability. It solves the problems in the prior art, especially in medium and high power switching power supply products, where various functional circuits are integrated onto a single circuit unit board to improve internal space utilization. Due to the uneven weight distribution of electronic components and the lack of any protection, stress during production assembly and transition processes leads to solder joint detachment or poor soldering, damage and breakage of copper foil on the circuit unit board, and difficulties in maintenance, debugging, and troubleshooting. This invention is worthy of promotion. The basic principles, main features, and advantages of this utility model have been shown and described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments.

[0023] The foregoing has shown and described the main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments.

[0024] Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. A tooling structure for assembling and adjusting circuit board assemblies, used in the manufacturing process of circuit board assemblies, characterized in that: The tooling structure includes a tooling plate, the size of which is not less than the size of the circuit board in the circuit board assembly. The tooling plate is provided with several pillars corresponding to the mounting holes of the circuit board assembly. One end of the pillar is fixed to the tooling plate, and the other end of the pillar is fixed to the circuit board assembly by fasteners. The height of the pillar is greater than the height of the components on the circuit board assembly.

2. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: One end of the support column is fixed to the tooling plate by welding or riveting, and the other end of the support column is provided with an internal threaded hole. The circuit board assembly is fixed by fasteners that cooperate with the internal threaded hole.

3. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: The support column is machined into one piece with the tooling plate by CNC milling. The other end of the support column is provided with an internal threaded hole. The circuit board assembly is fixed by fasteners that cooperate with the internal threaded hole.

4. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: Both ends of the support column are provided with internal threaded holes. One end of the support column is fixed to the tooling plate by countersunk screws engaging with the internal threaded holes. The other end of the support column is installed by fasteners engaging with the internal threaded holes to fix the circuit board assembly.

5. The tooling structure for assembling and adjusting the circuit board assembly according to claim 2, 3, or 4, characterized in that: The fastener is a screw assembly.

6. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: The support column has an internal threaded hole at one end and an external thread at the other end; one end of the support column is fixed to the tooling plate by countersunk screws engaging with the internal threaded hole, and the other end of the support column is installed by fasteners engaging with the external thread to fix the circuit board assembly.

7. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: The support column is provided with a through hole; one end of the support column is mounted on a fixture plate by a countersunk screw, the mounting surface of the countersunk screw is on the fixture plate, the countersunk screw passes through the fixture plate, the through hole of the support column and the mounting hole of the circuit board, and the other end of the support column is fixed to the circuit board assembly by fasteners through the countersunk screw.

8. The tooling structure for assembling and adjusting the circuit board assembly according to claim 6 or 7, characterized in that: The fasteners mentioned are flat washers, spring washers, and nuts.

9. The tooling structure for assembling and adjusting the circuit board assembly according to claim 1, characterized in that: The tooling plate is made of aluminum alloy.

Images