An assembly fixture and method for PCB assemblies

Abstract

The application discloses an assembly tool and method for a PCB assembly, and belongs to the technical field of optical modules. The assembly tool comprises a base and a positioning assembly. One side of the base is provided with an avoiding groove and a plurality of supporting legs. The supporting legs are arranged on the base at intervals to support the base. The positioning assembly comprises a clamping piece and a pressing piece. The clamping piece is arranged on the base and is used for clamping a first plate body of the PCB assembly above the avoiding groove in a first direction. The pressing piece is movably arranged on the base and is used for pressing a power plate of the PCB assembly above the avoiding groove in a second direction. The assembly tool for the PCB assembly provided by the application can guarantee the relative position of the first plate body and the power plate, guarantee the constant pressing force between the power plate and the first plate body, improve the assembly efficiency of the PCB assembly, and guarantee the consistency of the assembly quality in batch production.

Description

Technical Field

[0001] This invention belongs to the field of optical module technology, specifically relating to an assembly fixture and method for PCB components. Background Technology

[0002] An optical module typically consists of optoelectronic devices, functional circuits, and an optical interface. The optoelectronic devices include transmitting and receiving sections, whose main function is to convert electrical signals into optical signals at the transmitting end, transmit them through optical fiber, and then convert the optical signals back into electrical signals at the receiving end. The functional circuits mainly include PCB components.

[0003] In related technologies, a PCB assembly includes at least one board (PCBA board) and a power board. During assembly, the pin headers are first fixed to the board, and each pin of the pin headers is soldered to the board. The board with the pin headers is then rotated 180°, and the power board is connected to the corresponding pins of the pin headers. The power board is then soldered to each pin of the pin headers.

[0004] However, the existing assembly methods for soldering boards and power boards are usually manual. During insertion and flipping, the boards and power boards are prone to relative movement, making it impossible to ensure that the relative positions of the boards and power boards and the clamping force between them are constant during the soldering process. This results in low assembly efficiency of PCB components and inconsistent assembly quality in mass production. Summary of the Invention

[0005] In view of the above-mentioned defects or improvement needs of the prior art, the present invention provides an assembly fixture and method for PCB components. Its purpose is to facilitate the overall positioning of the PCB board, conductive pins and power board through clamping and pressing parts, ensure the relative position of the first board and the power board, and ensure that the pressing force between the power board and the first board is constant, thereby improving the assembly efficiency of PCB components and ensuring the consistency of assembly quality.

[0006] In a first aspect, the present invention provides an assembly fixture for PCB assemblies, the assembly fixture including a base and a positioning component;

[0007] The base has a recessed groove and multiple legs on one side, and the multiple legs are arranged at intervals on the base to support the base.

[0008] The multiple legs and the base form a space to accommodate the PCB assembly and the clamping member.

[0009] The base has a clearance groove, which extends through one side of the base along a second direction to form a soldering clearance space for the PCB assembly.

[0010] The positioning component includes a clamping member and a pressing member. The clamping member is located on the base and is used to clamp the first board of the PCB assembly above the clearance groove in a first direction. The pressing member is movably arranged on the base and presses the power board of the PCB assembly above the clearance groove in a second direction.

[0011] Optionally, the plurality of the legs and the base form a space to accommodate the PCB assembly and the clamping member.

[0012] Optionally, the base has a clearance groove, which is disposed through one side of the base along a second direction to form a soldering clearance space for the PCB assembly.

[0013] Optionally, the clamping member includes a limiting plate, a slider, and a lead screw. The limiting plate and the slider are respectively located on both sides of the clearance groove. The slider is slidably arranged on the base in the direction toward the limiting plate, and the lead screw is rotatably inserted into the base. One end of the lead screw is threadedly engaged with the slider.

[0014] Optionally, the two opposite sides of the limiting plate and the slider are both inclined surfaces, and the ends of the two inclined surfaces facing away from the clearance groove are located above the first plate of the PCB assembly.

[0015] Optionally, the clamping member includes at least two clamping units, which are respectively located on both sides of the clearance groove. Each clamping unit includes a fixing block and a screw. The fixing block is located on the base, and each screw is threadedly engaged with the corresponding fixing block, and the screw passes through the fixing block.

[0016] Optionally, the clamping element includes a pressure head and a rotating frame, one end of which is rotatably inserted into the base, and the pressure head is located on the other end of the rotating frame to clamp the power board of the PCB assembly.

[0017] Optionally, the clamping component further includes an elastic module, which includes a cylinder, a spring, and a connecting bolt. The cylinder is fixedly connected to the rotating frame, and the inner circumferential wall of the cylinder has an inner flange. The connecting bolt is inserted into the cylinder, and the bottom end of the connecting bolt is connected to the base. The nut of the connecting bolt is located above the inner flange, and the spring is clamped between the nut of the connecting bolt and the inner flange.

[0018] Optionally, the pressure head has an elastic pad that is arranged toward the clearance groove.

[0019] Optionally, the clamping member includes a pressure head and a sliding frame, one end of which is slidably disposed on the base and the sliding direction of the sliding frame is perpendicular to the clearance groove, and the pressure head is located on the other end of the sliding frame to clamp the power board of the PCB assembly.

[0020] Optionally, the base has a positioning groove, which is arranged at intervals from the clearance groove, and the positioning groove is used to accommodate the second board body of the PCB assembly.

[0021] Secondly, the present invention provides an assembly method for PCB assemblies, the assembly method being based on the assembly fixture described in the first aspect, the assembly method comprising:

[0022] The first board of the PCB assembly is placed on the base, the clearance groove is located below the first board, and the first board is clamped by the clamping member.

[0023] Multiple conductive pins are inserted into the first plate, and a power board is inserted on top of the multiple conductive pins. The power board and the first plate are arranged parallel to each other at intervals.

[0024] Move the clamping member so that it presses the power board onto the conductive pins, and weld multiple conductive pins and the power board together;

[0025] The base is flipped so that the clearance groove and the plurality of legs are arranged downwards, and the first plate and the plurality of conductive pins are welded together.

[0026] Optionally, the PCB assembly further includes a first flexible circuit board, the power board and the first board body are connected via the first flexible circuit board, and the step of inserting a plurality of conductive pins on the first board body and inserting the power board on top of the plurality of conductive pins includes:

[0027] The conductive pins are inserted into the conductive holes of the first plate, and the multiple conductive holes on the first plate correspond one-to-one with the multiple conductive holes on the power board.

[0028] Under the connection of the first flexible board, the power board is rotated 180°, and the tip of each conductive pin is inserted into the conductive hole of the power board.

[0029] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0030] In an embodiment of the present invention, an assembly fixture for a PCB assembly is provided. First, the first board of the PCB assembly is placed on a base. At this time, the components on the first board facing the base are located in recessed slots, and the first board is clamped by clamping members. This clamping members horizontally (parallel to the base) hold the first board of the PCB assembly above the recessed slots, preventing horizontal movement. Then, multiple conductive pins are inserted into the first board, and a power board is inserted on top of the conductive pins. The power board and the first board are arranged parallel and spaced apart, thereby positioning the power board through the conductive pins. At this point, the first board is below, the power board is above, and the support legs are arranged upwards. Next, the clamping device is moved to press the power board onto the conductive pins. The conductive pins are clamped between the power board and the first board body, ensuring that the insertion depth of each conductive pin in the power board is consistent. This allows for convenient vertical positioning of the PCB board, conductive pins, and power board (see Figures 1 and 2), ultimately guaranteeing the relative spatial position of the first board body and the power board and preventing relative movement during subsequent soldering. Furthermore, the clamping force between the power board and the first board body remains constant under the action of the clamping device, unaffected by flipping. Based on this, multiple conductive pins and the power board are soldered, achieving soldering of the conductive pins and power board under the positioning and clamping force of the clamping device. Finally, the base is flipped so that the clearance groove and multiple support legs face downwards (see Figure 3). At this point, the first board body is on top, the power board is below, and the downward-facing support legs support the base, raising the power board and preventing it from being squeezed or touched by external forces. The first board body and multiple conductive pins are then soldered, ultimately completing the assembly of the PCB assembly.

[0031] In other words, the assembly fixture for PCB components provided in this embodiment of the invention can conveniently achieve the overall positioning of the PCB board, conductive pins and power board through clamping and pressing parts, ensure the relative position of the first board and the power board, and ensure that the pressing force between the power board and the first board is constant, thereby improving the assembly efficiency of the PCB components and ensuring the consistency of assembly quality in mass production. Attached Figure Description

[0032] Figure 1 This is a first view of an assembly fixture for PCB components provided in an embodiment of the present invention;

[0033] Figure 2 This is a second view of an assembly fixture for PCB components provided in an embodiment of the present invention;

[0034] Figure 3 This is a first view of the assembly fixture for PCB components in use, provided by an embodiment of the present invention.

[0035] Figure 4yes Figure 3 A magnified view of a portion of the image;

[0036] Figure 5 This is a second view of the assembly fixture for PCB components in use, provided by an embodiment of the present invention.

[0037] Figure 6 This is a partial structural schematic diagram of the clamping member provided in an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention;

[0039] Figure 8 This is an assembly diagram of the slide provided in an embodiment of the present invention;

[0040] Figure 9 This is a cross-sectional view of the elastic module provided in an embodiment of the present invention;

[0041] Figure 10 This is a flowchart of an assembly method for PCB components provided by an embodiment of the present invention.

[0042] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0043] 1. Base; 11. Alternating groove; 12. Support leg; 13. Positioning groove; 14. Guide groove; 141. Slide; 15. Cover plate; 16. Alternating groove; 2. Positioning assembly; 21. Clamping component; 211. Limiting plate; 212. Slider; 213. Lead screw; 22. Pressing component; 221. Press head; 222. Rotating frame; 223. Cylinder; 2231. Inner flange; 224. Spring; 225. Connecting bolt; 226. Mounting base; 100. First plate; 200. Power board; 300. Conductive pin; 400. Second plate. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] Example:

[0050] Figure 1 This is a first view of an assembly fixture for PCB components provided in an embodiment of the present invention. Figure 2 This is a second view of an assembly fixture for PCB components provided in an embodiment of the present invention, combined with... Figure 1 and Figure 2As shown, the assembly fixture includes a base 1 and a positioning component 2.

[0051] The base 1 has a recessed groove 11 and multiple legs 12 on one side. The multiple legs 12 are arranged at intervals on the base 1 to support the base 1.

[0052] The positioning component 2 includes a clamping member 21 and a pressing member 22. The clamping member 21 is located on the base 1 and is used to clamp the first board body 100 of the PCB assembly above the clearance groove 11 in a first direction. The pressing member 22 is movably arranged on the base 1 and presses the power board 200 of the PCB assembly above the clearance groove 11 in a second direction.

[0053] In an embodiment of the present invention, an assembly fixture for a PCB assembly is provided. First, the first board 100 of the PCB assembly is placed on a base 1. At this time, the components on the first board 100 facing the base are located in recessed slots 11, and the first board 100 is clamped by clamping members 21. This clamping members 21 horizontally (parallel to the base 1) holds the first board 100 above the recessed slots 11, preventing it from moving horizontally. Then, multiple conductive pins 300 are inserted into the first board 100, and a power board 200 is inserted on top of the conductive pins 300. The power board 200 and the first board 100 are arranged parallel and spaced apart, thereby positioning the power board 200 through the conductive pins 300. At this point, the first board 100 is below, the power board 200 is above, and the support legs 12 are arranged upwards. Next, the clamping member 22 is moved so that it presses the power board 200 onto the conductive pins 300. The conductive pins 300 are clamped between the power board 200 and the first board body 100, and the insertion depth of each conductive pin 300 in the power board 200 is made consistent. Thus, the clamping member 22 facilitates the overall positioning of the PCB board, conductive pins 300, and power board 200 in the vertical direction (see...). Figure 3 and Figure 4 This ensures the relative spatial positions of the first plate 100 and the power board 200, preventing relative movement during subsequent welding. Furthermore, under the action of the clamping member 22, the clamping force between the power board 200 and the first plate 100 remains constant and is unaffected by flipping. Based on this, multiple conductive pins 300 and the power board 200 are welded together, thus achieving welding of the conductive pins 300 and the power board 200 under the positioning and clamping force of the clamping member 21 and the clamping member 22. Finally, the base 1 is flipped so that the clearance groove 11 and multiple support legs 12 are arranged downwards (see...). Figure 5At this point, the first board 100 is on top, the power board 200 is below, and the support legs 12 face downwards to support the base 1. The power board 200 is raised by the support legs 12 so as not to be squeezed or touched by the outside. The first board 100 and multiple conductive pins 300 are then soldered, thus finally realizing the assembly of the PCB assembly.

[0054] In other words, the assembly fixture for PCB components provided in this embodiment of the invention can conveniently achieve the overall positioning of the PCB board, conductive pins 300 and power board 200 through clamping member 21 and pressing member 22, ensuring the relative position of the first board body 100 and the power board 200, and ensuring that the pressing force between the power board 200 and the first board body 100 is constant, thereby improving the assembly efficiency of PCB components and ensuring the consistency of assembly quality in mass production.

[0055] It should be noted that this application uses conductive pins 300 to weld the power board 200 and the first board 100. The conductive pins 300 occupy less space and are beneficial to the needs of high-density light transmission.

[0056] For example, the number of conductive pins 300 can be 4-6, and both ends of the conductive pins 300 are inverted T-shaped structures or have limiting structures. They can not only be inserted into the through holes on the power board 200 and the first plate 100 respectively, but also limit the power board 200 and the first plate 100, thereby preventing the first plate 100 from contacting the power board 200.

[0057] It is easy to understand that the clearance groove 11 allows the components on the back of the first plate 100 to be suspended, which not only allows the first plate 100 to be arranged parallel to the base 1, but also prevents the components from being worn by the base 1 (see...). Figure 3 ).

[0058] In this embodiment, multiple legs 12 and base 1 form a space to accommodate the PCB assembly and clamping member 22, so that the PCB assembly and clamping member 22 are located in this space, thereby saving the space occupied by the entire assembly fixture.

[0059] In one implementation of the present invention Figure 6 This is a partial structural schematic diagram of the clamping member provided in an embodiment of the present invention. Figure 7 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention, combined with... Figure 6 and Figure 7 As shown, the clamping member 21 includes a limiting plate 211, a slider 212, and a lead screw 213. The limiting plate 211 and the slider 212 are located on both sides of the clearance groove 11. The slider 212 is slidably arranged on the base 1 in the direction toward the limiting plate 211. The limiting plate 211 is located on the base 1, and the lead screw 213 is rotatably inserted into the base 1. One end of the lead screw 213 is threadedly engaged with the slider 212.

[0060] In the above embodiment, rotating the lead screw 213 can drive the slider 212 to slide, causing the slider 212 to move toward the limiting plate 211, thereby cooperating with the limiting plate 211 to clamp the first plate 100 in the horizontal direction.

[0061] For example, the base 1 has a guide groove 14 that extends along the sliding direction of the slider 212, and a slide block 141 is slidably inserted into the guide groove 14 (see Figure 8 The slide block 141 and the slider 212 are fixedly connected, and the end of the lead screw 213 is threadedly engaged with the slide block 141. In addition, a cover plate 15 is inserted above the guide groove 14. The cover plate 15 limits the slide block 141 and prevents the base 1 from detaching from the guide groove 14 after it flips over.

[0062] In other words, the rotation of the lead screw 213 can be converted into the linear motion of the slide block 141 along the guide groove 14, thereby driving the slider 212 to slide, and then cooperating with the limiting plate 211 to clamp the first plate 100.

[0063] For example, the number of sliders 212 on the slide block 141 can be two, and the two sliders 212 are arranged at intervals to improve the clamping effect.

[0064] In addition, the limiting plate 211 has multiple positioning posts arranged at intervals, and the side of the first plate 100 has a positioning groove. The positioning of the first plate 100 is achieved by the cooperation of the positioning posts and the positioning groove.

[0065] Furthermore, both sides of the limiting plate 211 and the slider 212 are inclined surfaces, and the ends of the two inclined surfaces facing away from the clearance groove 11 are located above the first plate 100 of the PCB assembly. The two inclined surfaces can not only cooperate to clamp the first plate 100, but also form a limit above the first plate 100 to prevent the first plate 100 from moving upward and disengaging from the clearance groove 11 during the clamping process.

[0066] For example, the limiting plate 211 can be integrally formed with the base 1 (i.e., the limiting plate 211 can be regarded as a step on the base 1).

[0067] In another implementation of the present invention, the clamping member 21 includes at least two clamping units (not shown in the figure), the two clamping units are respectively located on both sides of the clearance groove 11, each clamping unit includes a fixing block and a screw, the fixing block is located on the base, each screw is threadedly engaged with the corresponding fixing block, and the screw passes through the fixing block.

[0068] In the above embodiment, the fixing block supports the screw, and the first plate 100 is finally clamped by the movement of multiple screws.

[0069] In one embodiment of the present invention, the clamping member 22 includes a clamping head 221 and a rotating frame 222. One end of the rotating frame 222 is rotatably inserted into the base 1, and the clamping head 221 is located on the other end of the rotating frame 222 to clamp the power board 200 of the PCB assembly.

[0070] It is easy to understand that the rotating frame 222 can drive the pressure head 221 to rotate, thereby rotating the pressure head 221 directly above the power board 200 to press the power board 200. In addition, even after flipping, the pressure head 221 can still limit the position of the power board 200 under the support of the rotating frame 222. During the process of loading and unloading the first plate 100, the rotating frame 222 can rotate 100-120°, thereby moving the pressure head 221 away from the clearance groove 11, thus facilitating loading and unloading.

[0071] For example, the rotating frame 222 has an L-shaped structure.

[0072] Furthermore, the clamping component 22 also includes an elastic module, which includes a cylinder 223, a spring 224, and a connecting bolt 225. The cylinder 223 is fixedly connected to the rotating frame 222. The inner circumferential wall of the cylinder 223 has an inner flange 2231. The connecting bolt 225 is inserted into the cylinder 223, and the bottom end of the connecting bolt 225 is connected to the base 1. The nut of the connecting bolt 225 is located above the inner flange 2231, and the spring 224 is sandwiched between the nut of the connecting bolt 225 and the inner flange 2231 (see...). Figure 9 ).

[0073] In the above embodiment, the spring 224 exerts a spring force on the inner flange 2231 and the cylinder 223 towards the base 1, so that the pressure head 221 firmly presses against the power board 200. When it is necessary to rotate the rotating frame 222 to press against the power board 200, the cylinder 223 is lifted against the spring force of the spring 224. The cylinder 223 will then drive the rotating frame 222 and the pressure head 221 to move upward. At this time, the rotating frame 222 can be rotated around the connecting bolt 225 as an axis. When the pressure head 221 rotates to directly above the power board 200, the cylinder 223 is slowly released. The spring 224 will drive the cylinder 223 to move downward, thereby driving the pressure head 221 to press against the power board 200. By setting the spring 224, not only can the pressing be guaranteed, but the installation error of the pressure head 221 can also be compensated.

[0074] For example, the base 1 has a mounting base 226, and the connecting bolt 225 is mounted on the mounting base 226.

[0075] In addition, the pressure head 221 has an elastic pad, which is arranged towards the clearance groove 11 to avoid pressing the components on the power board 200 of the pressure head 221.

[0076] For example, the elastic pad is made of a soft material, such as silicone or foam. The elastic pad has a groove in the middle, which allows it to avoid the silicon-based components on the power board 200, while the elastic pad only contacts the electrical components on the power board 200.

[0077] In another embodiment of the present invention, the clamping member 22 includes a clamping head 221 and a sliding frame (not shown). One end of the sliding frame is slidably arranged on the base 1, and the sliding direction of the sliding frame is perpendicular to the clearance groove 11. The clamping head 221 is located on the other end of the sliding frame to clamp the power board 200 of the PCB assembly. The position of the clamping head 221 can be adjusted by sliding the sliding frame so that the clamping head 221 slides directly above the power board 200, thereby also achieving the clamping of the power board 200.

[0078] In this embodiment, the base 1 has a positioning groove 13, which is arranged at intervals with the clearance groove 11. The positioning groove 13 is used to accommodate the second board 400 of the PCB assembly.

[0079] In the above embodiment, the positioning groove 13 can realize the positioning of the second board 400 of the PCB assembly.

[0080] Furthermore, the second plate 400 can be glued to the positioning groove 13 to prevent the second plate 400 from swinging during the flipping process.

[0081] It should be noted that the first board 100 and the second board 400 are electrically connected through a second flexible printed circuit board (FPC). The arrangement of multiple boards increases the PCB assembly area and improves the transmission rate.

[0082] For example, the second flexible board is inserted between the two sliders 212, thereby achieving the avoidance of the second flexible board.

[0083] See you again Figure 1 The base 1 has a clearance groove 16, which is disposed through one side of the base 1 along the second direction (vertical direction) to form a soldering clearance space for the PCB assembly.

[0084] It is easy to understand that the recess 16 is arranged opposite to the first plate 100, thereby avoiding interference between the welding of the conductive pin 300 and the first plate 100.

[0085] Figure 10 This is a flowchart of an assembly method for PCB components provided by an embodiment of the present invention, such as... Figure 10 As shown, this assembly method is based on the above-mentioned assembly fixture, and the assembly method includes:

[0086] S1. Place the first board 100 of the PCB assembly on the base 1, with the clearance groove 11 located below the first board 100, and clamp the first board 100 by the clamping member 21.

[0087] S2. Insert multiple conductive pins 300 onto the first plate 100, and insert a power board 200 onto the top of the multiple conductive pins 300.

[0088] The power board 200 and the first board 100 are arranged in parallel at intervals.

[0089] S3. Move the clamping member 22 so that the clamping member 22 presses the power board 200 onto the conductive pins 300, and weld multiple conductive pins 300 and the power board 200.

[0090] S4. Flip the base 1 so that the clearance groove 11 and multiple support legs 12 are arranged downwards, and weld the first plate 100 and multiple conductive pins 300.

[0091] In this embodiment, the PCB assembly may further include a first flexible printed circuit board (FPC), and the power board 200 and the first board body 100 are connected via the first flexible printed circuit board. In this case, step S2 includes:

[0092] S21. Conductive pins 300 are inserted into the conductive holes of the first plate 100, and the multiple conductive holes on the first plate 100 correspond one-to-one with the multiple conductive holes on the power board 200.

[0093] S22. Under the connection of the first flexible board, the power board 200 is rotated 180°, and the top of each conductive pin 300 is inserted into the conductive hole of the power board 200.

[0094] It should be noted that the first flexible printed circuit board (FPCB) is used for signal transmission between the power board 200 and the first board body 100, and the conductive pin 300 is used for power transmission between the power board 200 and the first board body 100. Therefore, before assembly, the first FPCB can connect the power board 200 and the first board body 100 to prevent the power board 200 from being lost. Before soldering, it is only necessary to rotate the power board 200 by 180°, which improves assembly efficiency.

[0095] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An assembly fixture for PCB assemblies, characterized in that, The assembly fixture includes a base and a positioning component; The base has a recessed groove and multiple legs on one side, and the multiple legs are arranged at intervals on the base to support the base. The positioning component includes a clamping member and a pressing member. The clamping member is located on the base and is used to clamp the first board of the PCB assembly onto the clearance groove in a first direction. The pressing member is movably arranged on the base and presses the power board of the PCB assembly onto the clearance groove in a second direction. The clamping component includes a limiting plate and a slider. The limiting plate and the slider are located on both sides of the clearance groove. The two opposite sides of the limiting plate and the slider are both inclined surfaces. The ends of the two inclined surfaces facing away from the clearance groove are located above the first plate of the PCB assembly.

2. The assembly fixture for PCB components according to claim 1, characterized in that, The multiple legs and the base form a space to accommodate the PCB assembly and the clamping member.

3. An assembly fixture for PCB components according to any one of claims 1-2, characterized in that, The base has a clearance groove, which is disposed through one side of the base along a second direction to form a soldering clearance space for the PCB assembly.

4. An assembly fixture for PCB components according to any one of claims 1-2, characterized in that, The clamping component also includes a lead screw, the slider is slidably arranged on the base in the direction toward the limiting plate, and the lead screw is rotatably inserted into the base, with one end of the lead screw threadedly engaged with the slider.

5. An assembly fixture for PCB components according to any one of claims 1-2, characterized in that, The clamping component includes a pressure head and a rotating frame. One end of the rotating frame is rotatably inserted into the base, and the pressure head is located on the other end of the rotating frame to clamp the power board of the PCB assembly.

6. The assembly fixture for PCB components according to claim 5, characterized in that, The clamping component also includes an elastic module, which includes a cylinder, a spring, and a connecting bolt. The cylinder is fixedly connected to the rotating frame. The inner circumferential wall of the cylinder has an inner flange. The connecting bolt is inserted into the cylinder, and the bottom end of the connecting bolt is connected to the base. The nut of the connecting bolt is located above the inner flange, and the spring is clamped between the nut of the connecting bolt and the inner flange.

7. The assembly fixture for PCB components according to claim 5, characterized in that, The pressure head has an elastic pad, which is arranged toward the clearance groove.

8. An assembly fixture for PCB components according to any one of claims 1-2, characterized in that, The clamping component includes a pressure head and a sliding frame. One end of the sliding frame is slidably arranged on the base, and the sliding direction of the sliding frame is perpendicular to the clearance groove. The pressure head is located on the other end of the sliding frame to clamp the power board of the PCB assembly.

9. An assembly method for PCB components, characterized in that, The assembly method is based on the assembly fixture according to any one of claims 1-8, and the assembly method includes: The first board of the PCB assembly is placed on the base, the clearance groove is located below the first board, and the first board is clamped by the clamping member. Multiple conductive pins are inserted into the first plate, and a power board is inserted on top of the multiple conductive pins. The power board and the first plate are arranged parallel to each other at intervals. Move the clamping member so that it presses the power board onto the conductive pins, and weld multiple conductive pins and the power board together; The base is flipped so that the clearance groove and the plurality of legs are arranged downwards, and the first plate and the plurality of conductive pins are welded together.

10. The assembly method for a PCB assembly according to claim 9, characterized in that, The PCB assembly further includes a first flexible circuit board, and the power board and the first board body are connected via the first flexible circuit board. The step of inserting a plurality of conductive pins onto the first board body and inserting the power board onto the top of the plurality of conductive pins includes: The conductive pins are inserted into the conductive holes of the first plate, and the multiple conductive holes on the first plate correspond one-to-one with the multiple conductive holes on the power board. Under the connection of the first flexible board, the power board is rotated 180°, and the tip of each conductive pin is inserted into the conductive hole of the power board.

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