Circuit board installation equipment

Abstract

The invention relates to the technical field of circuit board installation, and discloses circuit board installation equipment. The circuit board installation equipment comprises a main tool, and the main tool comprises a cover plate; two of the four clamping assemblies are arranged on the cover plate in a spaced mode in the first direction, the other two clamping assemblies are arranged on the cover plate in a spaced mode in the second direction, and the four clamping assemblies can draw close to each other so as to abut against and extrude the four edges of the circuit board at the same time; the quick clamp is connected with the two parallel clamping assemblies, and the quick clamp is used for providing tensioning force for the clamping assemblies so as to drive the four clamping assemblies to be close to each other or releasing the tensioning force on the clamping assemblies. According to the circuit board installation equipment, the circuit board can be automatically installed in the annular groove in the case in an interference mode, the circuit board cannot be damaged, and the installation efficiency is high.

Description

[0001] This application is a divisional application of Chinese application No. 202310148089.5, filed on February 22, 2023, entitled "Circuit Board Mounting Equipment". Technical Field

[0002] This invention relates to the field of circuit board mounting technology, and more particularly to circuit board mounting equipment. Background Technology

[0003] During circuit board installation, the circuit board typically needs to be interference-fitted into an annular groove inside the chassis to ensure stable operation. Currently, interference-fitting is usually done manually. However, because the circuit board needs to be slightly larger than the annular groove during interference-fitting, manual installation is prone to errors that can damage the circuit board, compromising its functionality. Furthermore, it is time-consuming, labor-intensive, and inefficient.

[0004] Therefore, there is an urgent need for circuit board mounting equipment that can solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a circuit board mounting device that can automatically interference fit circuit boards into an annular groove inside a chassis without damaging the circuit boards, saving time and effort and achieving high installation efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A circuit board mounting device for interference-fitting circuit boards into an annular groove inside a chassis, the circuit board mounting device including a main fixture, the main fixture comprising:

[0008] Cover plate;

[0009] Four interconnected clamping assemblies, wherein two of the clamping assemblies are spaced apart on the cover plate along a first direction, and the other two clamping assemblies are spaced apart on the cover plate along a second direction. The four clamping assemblies can approach each other to simultaneously and respectively abut against the four sides of the circuit board, and can press the sides of the circuit board inward toward the center of the circuit board. The first direction is perpendicular to the second direction.

[0010] A quick clamp is connected to two parallel clamping assemblies. The quick clamp is used to provide tension to the clamping assemblies to bring the four clamping assemblies closer together, or to release the tension on the clamping assemblies.

[0011] Furthermore, a support block is centrally located at the center of each of the four clamping assemblies, and the support block is fixedly mounted on the cover plate; the four clamping assemblies include two opposing first clamping assemblies, which are capable of clamping two sides of the circuit board respectively along the first direction, and the first clamping assemblies include:

[0012] A guide block is slidably disposed on the cover plate along the first direction, and the two ends of the quick clamp are respectively fixedly disposed on the guide block in the two first clamping assemblies;

[0013] The first gripper has a first support end disposed on the guide block, and a first pressing end of the first gripper passes through the cover plate and extends downward. The first pressing end is capable of moving within the cover plate along the first direction.

[0014] A first elastic element, one end of which is fixedly connected to the support block, and the other end of which is fixedly connected to the end of the guide block that is not provided with the first gripper.

[0015] Furthermore, the quick clip includes:

[0016] The mating block and the clamping body are respectively fixedly mounted on the two guide blocks. The mating block and the clamping body are connected and can be tightened or loosened relative to each other.

[0017] Furthermore, the four clamping assemblies also include two opposing second clamping assemblies, which are capable of clamping the other two sides of the circuit board along the second direction, respectively. The second clamping assemblies include:

[0018] A fixed seat is disposed on the cover plate. The fixed seat is movably connected to the guide block. The guide block can drive the fixed seat to slide on the cover plate along the second direction. The two guide blocks and the two fixed seats surround the outer periphery of the support block.

[0019] The second gripper has a second support end disposed on the fixed base, and a second pressing end of the second gripper passes through the cover plate and extends downward. The position of the second support end on the fixed base is adjustable, and the second pressing end can move within the cover plate along the second direction.

[0020] The second elastic element has one end fixedly connected to the support block, and the other end fixedly connected to the end of the fixed base that is not provided with the second gripper.

[0021] Furthermore, each of the two first grippers has a first pressing end, one of the two second grippers has two second pressing ends, and the other second gripper has one second pressing end.

[0022] Furthermore, the main fixture also includes a first limiting component, which is used to limit the movement distance of the guide block toward the support block in the first direction. The first limiting component includes:

[0023] A first limiting screw extends along the first direction;

[0024] A first top block is fixedly mounted on the cover plate. A ring protrudes from the first top block. The end of the first limiting screw passes through the ring and is connected to the guide block. The first limiting screw can move within the ring along the first direction, and the inner diameter of the ring is smaller than the outer diameter of the head of the first limiting screw.

[0025] Furthermore, the main fixture also includes a second limiting component, which limits the movement distance of the guide block away from the support block in the first direction. The second limiting component includes:

[0026] The second limiting screw extends along the first direction and is disposed on the guide block opposite to the first limiting screw;

[0027] The second top block is fixedly mounted on the cover plate. The second top block is provided with an abutment protrusion. The second limiting screw is located between the guide block and the abutment protrusion, and the second limiting screw can abut against the abutment protrusion.

[0028] Furthermore, the bottom end face of the cover plate is respectively provided with a limit pin and a clearance groove, the circuit board is provided with a first mounting hole and a second mounting hole, and the circuit board mounting device further includes:

[0029] The first limiting seat is used to place the circuit board before interference fit. The first limiting seat includes a first base and four first limiting blocks. The four first limiting blocks are arranged around the first base. Each first limiting block has a limiting hole and a limiting protrusion on its top surface. One of the first limiting blocks also has a limiting post on its top surface. The limiting post can be inserted into the first mounting hole. The limiting pin can pass through the second mounting hole and the limiting hole in sequence. The limiting protrusion can be engaged in the clearance slot.

[0030] Furthermore, mounting slots are respectively provided on opposite sides of the cover plate, and a first protrusion is provided on the chassis, the first protrusion being able to engage with the mounting slots. The circuit board mounting device further includes:

[0031] The second limiting seat is used to place the chassis. The second limiting seat includes a second base and four second limiting blocks. The four second limiting blocks are arranged around the second base. The second base is provided with a plurality of second protrusions. The plurality of second protrusions are located inside the four second limiting blocks. The bottom end face of the chassis is provided with a plurality of locking holes. The second protrusions can be locked into the locking holes.

[0032] The beneficial effects of this invention are as follows:

[0033] By setting four interconnected clamping components in a cross shape on the cover plate, and connecting the quick clamp to two parallel clamping components, when the circuit board needs to be installed in the annular groove, the quick clamp provides tension to the two connected clamping components, causing the four clamping components to move closer together. This allows the four clamping components to clamp and compress the four edges of the circuit board towards the center, lifting the board and placing it in the annular groove. Because the four clamping components compress the four edges of the circuit board, the size of the circuit board can be slightly reduced. Then, the quick clamp releases the tension on the clamping components, and the four clamping components no longer clamp the circuit board, allowing the circuit board to return to its original size and abut against the inner wall of the annular groove. This achieves the purpose of interference fit installation of the circuit board in the annular groove inside the chassis. In this way, the circuit board can be automatically interference fitted into the annular groove inside the chassis, avoiding the problem of easily damaging the circuit board during manual installation, ensuring the normal function of the circuit board, saving time and effort, and achieving high installation efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the main fixture provided by the present invention. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the main fixture (excluding the protective cover) provided by the present invention. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the main fixture (excluding the protective cover, handle, and quick clamp) provided by the present invention. Figure 3 ;

[0037] Figure 4 This is a schematic diagram of the structure of the first clamping component, the first limiting component, and the second limiting component provided by the present invention;

[0038] Figure 5This is a schematic diagram of the structure of the second clamping assembly (the second gripper has two second pressing ends) provided by the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the first limiting seat provided by the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of the bottom end face of the cover plate provided by the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of the second limiting seat provided by the present invention.

[0042] Figure label:

[0043] 1-Main fixture; 10-Clamping assembly; 11-Cover plate; 111-Protective cover; 112-Weight reduction hole; 113-Handle; 114-Limit pin; 115-Allowing slot; 116-Guide sleeve; 117-Mounting slot; 12-First clamping assembly; 121-Guide block; 122-First gripper; 1221-First support end; 1222-First pressing end; 1223-Protective adhesive; 123-First elastic element; 124-Weight reduction groove; 125-Adjusting screw; 13-Second clamping assembly; 131-Fixing base; 1311-Angled hole; 132-Second gripper; 1321-Second support end; 1322-Second pressing end; 133-Second elastic element; 14-Quick clamp; 141-Clamp body; 142-Matching block; 15-Support block; 16-First limiting assembly; 161-First limiting screw; 162-First top block; 163-Ring; 17-Second limiting assembly; 171-Second limiting screw; 172-Second top block; 173-Abutting protrusion; 18-Linear guide rail; 19-Connecting shaft; 191-Ball bearing;

[0044] 2-First limiting seat; 21-First base; 22-First limiting block; 221-Limiting post; 222-Limiting hole; 223-Limiting protrusion; 224-Clamping clamp;

[0045] 3-Second limiting seat; 31-Second base; 32-Second limiting block; 33-Second protrusion. Detailed Implementation

[0046] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the structure 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0050] During circuit board installation, the circuit board typically needs to be interference-fitted into an annular groove inside the chassis to ensure stable operation. Currently, interference-fitting is usually done manually. However, because the circuit board needs to be slightly larger than the annular groove during interference-fitting, manual installation is prone to errors that can damage the circuit board, compromising its functionality. Furthermore, it is time-consuming, labor-intensive, and inefficient.

[0051] Therefore, this embodiment proposes a circuit board mounting device for automatically interference-fitting circuit boards into an annular groove inside a chassis. Furthermore, this circuit board mounting device can also be used for the automatic mounting of workpieces with similar circuit board structures, and is not limited to the circuit boards in this embodiment. The circuit board and chassis in this embodiment can employ structures commonly found in the prior art.

[0052] Specifically, such as Figures 1-3As shown, the circuit board mounting equipment includes a main fixture 1, which is used to grip the circuit board and interference fit it into an annular groove. The main fixture 1 includes a cover plate 11, a quick clamp 14, and four interconnected clamping assemblies 10. Two of the four clamping assemblies 10 are spaced apart on the cover plate 11 along a first direction, and the other two are spaced apart on the cover plate 11 along a second direction. That is, the four clamping assemblies 10 are arranged in a cross shape on the cover plate 11, and the four clamping assemblies 10 can approach each other to simultaneously and respectively abut against the four sides of the circuit board, and can press the edges of the circuit board inward toward the center of the circuit board. The quick clamp 14 is connected to the two parallel clamping assemblies 10. The quick clamp 14 is used to provide tension to the clamping assemblies 10 to drive the four clamping assemblies 10 to approach each other, or to release the tension on the clamping assemblies 10.

[0053] In other words, the quick clamp 14 has a pushed-up state and a pressed-down state. When the quick clamp 14 is in the pressed-down state, the tension provided by the quick clamp 14 allows the four clamping components 10 to come closer together to clamp and squeeze the four sides of the circuit board, thereby clamping the circuit board and placing it in the annular groove. When the quick clamp 14 is in the pushed-up state, the quick clamp 14 does not provide tension to the clamping components 10. At this time, the four clamping components 10 no longer clamp the circuit board, allowing the circuit board to directly abut against the inner wall of the annular groove, thereby interference-fitting the circuit board into the annular groove. The first direction and the second direction are perpendicular to each other, and the first direction is parallel to the length direction of the cover plate 11, while the second direction is parallel to the width direction of the cover plate 11. The first direction is specifically as follows... Figures 1-3 As shown by arrow A in the diagram, the second direction is specifically as follows: Figures 1-3 As shown by arrow B in the diagram.

[0054] By providing four interconnected clamping assemblies 10 in a cross shape on the cover plate 11, and connecting the quick clamp 14 to two parallel clamping assemblies; when the circuit board needs to be installed in the annular groove, the quick clamp 14 provides a tensioning force to the two connected clamping assemblies 10, causing the four clamping assemblies 10 to move closer together, thereby clamping and pressing the four sides of the circuit board towards the center of the circuit board, thus lifting the circuit board and placing it in the annular groove; because the four clamping assemblies 10 press the four sides of the circuit board respectively, the circuit... The size of the board can be slightly reduced; then the quick clamp 14 releases the tension on the clamping assembly 10. At this time, the four clamping assemblies 10 no longer clamp the circuit board, thereby restoring the size of the circuit board to be able to abut against the inner wall of the annular groove, thus achieving the purpose of interference fit of the circuit board in the annular groove. In this way, the circuit board can be automatically interference fit in the annular groove inside the chassis. Compared with the manual installation method, the circuit board is subjected to more uniform force, which can avoid the problem of easy damage to the circuit board during manual installation, ensure the normal function of the circuit board, and save time and effort with higher installation efficiency.

[0055] Furthermore, such as Figures 1-3 As shown, a support block 15 is provided at the center of the four clamping components 10, and the support block 15 is fixedly mounted on the cover plate 11; the four clamping components 10 include two first clamping components 12 arranged opposite to each other in the first direction, and the two first clamping components 12 can clamp the two sides of the circuit board respectively in the first direction.

[0056] Specifically, such as Figure 3 and Figure 4As shown, the first clamping assembly 12 includes a guide block 121, a first gripper 122, and a first elastic element 123; wherein, the guide block 121 is slidably disposed on the cover plate 11 along a first direction, and the two ends of the quick clamp 14 are respectively fixedly disposed on the guide blocks 121 in the two first clamping assemblies 12, that is, the support block 15 is located between the two guide blocks 121; the first support end 1221 of the first gripper 122 is disposed on the guide block 121, and the first pressing end 1222 of the first gripper 122 passes through the cover plate 11 and extends downward, and the first pressing end 1222 can move in the cover plate 11 along the first direction so that the first pressing ends 1222 of the two first grippers 122 can clamp the circuit board in the first direction; the first elastic element 123; One end of the first elastic element 123 is fixedly connected to the support block 15, and the other end of the first elastic element 123 is fixedly connected to the end of the guide block 121 that is not provided with the first gripper 122. When the quick clamp 14 is in the pressed state, it can drive the two guide blocks 121 to move closer together along a first direction, so that the two first grippers 122 respectively clamp the two edges of the circuit board in the first direction, at which time the first elastic element 123 is compressed. When the quick clamp 14 is in the pushed-up state, the mutual tension between the two guide blocks 121 is eliminated, and the first elastic element 123 can drive the guide blocks 121 to move away from the support block 15, so that the first pressing end 1222 of the first gripper 122 disengages from the circuit board. In this embodiment, the first elastic element 123 can specifically be a compression spring.

[0057] By setting the first elastic element 123, when the quick clamp 14 is in the pushed-up state and the tension force on the clamping assembly 10 is released, the first elastic element 123 can provide elastic force to the first gripper 122, so that the first gripper 122 can move away from the circuit board, thereby making it easier for the first pressing end 1222 to detach from the circuit board, which is beneficial to the restoration of the circuit board size, so that the circuit board can directly abut against the inner wall of the annular groove.

[0058] Specifically, such as Figure 4 As shown, a linear guide rail 18 is provided on one of the cover plate 11 and the guide block 121, and a slider is provided on the other. The linear guide rail 18 extends along a first direction, and the slider can slide on the linear guide rail 18 to guide the movement of the guide block 121 on the cover plate 11, thereby ensuring the stability and accuracy of the movement of the guide block 121. In this embodiment, a linear guide rail 18 is provided on the cover plate 11, and a slider is provided on the guide block 121. In other embodiments, a slider may also be provided on the cover plate 11, and a linear guide rail 18 may be provided on the guide block 121.

[0059] Furthermore, the position of the first support end 1221 on the guide block 121 can be adjusted so that the position of the first pressing end 1222 of the first gripper 122 is more suitable, thereby ensuring that the two first pressing ends 1222 can simultaneously and respectively press against the two sides of the circuit board in the first direction.

[0060] Specifically, such as Figure 4 As shown, a rectangular hole extending along a first direction is provided on the guide block 121, an adjusting protrusion is provided on the bottom end surface of the first support end 1221, and an adjusting screw 125 is provided on the guide block 121. The end of the adjusting screw 125 passes through the guide block 121 and abuts against the adjusting protrusion. Rotating the adjusting screw 125 can drive the adjusting protrusion to move in the rectangular hole, thereby adjusting the setting position of the first support end 1221 on the guide block 121.

[0061] Furthermore, such as Figure 1 and Figure 2 As shown, the quick clamp 14 includes a mating block 142 and a clamping body 141. The mating block 142 and the clamping body 141 are respectively fixedly mounted on two guide blocks 121, and the mating block 142 and the clamping body 141 are connected. When the quick clamp 14 is in the pressed state, the mating block 142 and the clamping body 141 are pulled together to drive the two guide blocks 121 to move closer together. When the quick clamp 14 is in the pushed-up state, the mating block 142 and the clamping body 141 are released from each other. At this time, there is no tension between the mating block 142 and the clamping body 141, that is, the mating block 142 and the clamping body 141 are in a free, released state. In this embodiment, the mating block 142 is specifically a block structure, and the clamping body 141 adopts a quick clamp structure commonly used in the prior art, and one end of the quick clamp 14 is connected to the mating block 142.

[0062] Specifically, such as Figures 1-3 As shown, the four clamping components 10 also include two second clamping components 13 arranged opposite each other in the second direction. The two second clamping components 13 can clamp the other two sides of the circuit board in the second direction respectively, so as to cooperate with the two first clamping components 12 to clamp the four sides of the circuit board.

[0063] Furthermore, such as Figure 3 and Figure 5As shown, the second clamping assembly 13 includes a fixed base 131, a second gripper 132, and a second elastic member 133. The fixed base 131 is disposed on the cover plate 11 and is movably connected to a guide block 121. The guide block 121 can drive the fixed base 131 to slide along a second direction on the cover plate 11. Two guide blocks 121 and two fixed bases 131 are sequentially arranged around the outer periphery of the support block 15. The second support end 1321 of the second gripper 132 is disposed on the fixed base 131, and the second pressing end 1322 of the second gripper 132 passes through the cover plate 11 and extends downwards. The second pressing end 1322 can move within the cover plate 11 along a second direction, so that the second pressing ends 1322 of the two second grippers 132 can clamp the circuit board in the second direction. One end of the second elastic member 133 is fixedly connected to the support block 15, and the other end of the second elastic member 133 is fixedly connected to the end of the fixed base 131 where the second gripper 132 is not disposed. In this embodiment, the second elastic element 133 can specifically be a compression spring.

[0064] When the quick clamp 14 is in the pressed state, it can drive the two guide blocks 121 to move closer together in the first direction, so that the two first jaws 122 respectively clamp the two sides of the circuit board in the first direction; at the same time, the guide blocks 121 can drive the two fixed seats 131 to move closer together in the second direction, so that the two second jaws 132 respectively clamp the other two sides of the circuit board, so that the circuit board can be lifted by the two first jaws 122 and the two second jaws 132; at this time, the second elastic element 133 is compressed. When the quick clamp 14 is in the pushed-up state, since the mutual tension between the two guide blocks 121 is eliminated, the force of the guide blocks 121 on the fixed seats 131 is also eliminated. At this time, the second elastic element 133 can drive the fixed seats 131 to move away from the support block 15, so that the second pressing end 1322 of the second jaw 132 disengages from the circuit board. The function of the second elastic element 133 is similar to that of the first elastic element 123, and will not be described further here.

[0065] Specifically, such as Figures 3-5As shown, each fixed seat 131 is provided with two oblique holes 1311, which are symmetrically arranged with respect to the second direction. The distance between the two oblique holes 1311 gradually increases in the direction near the support block 15. Each oblique hole 1311 contains a ball bearing 191. A connecting shaft 19 is vertically arranged within the guide block 121, passing through the inner ring of the ball bearing, and both ends of the connecting shaft 19 are fixedly connected to the guide block 121. When the guide block 121 moves along the first direction, it can drive the connecting shaft 19 to move, allowing the connecting shaft 19 to drive the fixed seat 131 to move in the second direction via the ball bearing, thus achieving the purpose of the guide block 121 driving the fixed seat 131 to move. In other embodiments, other movable connection structures can be provided between the fixed seat 131 and the guide block 121, as long as they can ensure that the guide block 121 drives the fixed seat 131 to move in the second direction.

[0066] Specifically, the position of the second support end 1321 on the fixing base 131 can also be adjusted, so that the position of the second pressing end 1322 of the second gripper 132 is more suitable, so as to match the position of the first pressing end 1222 of the two first grippers 122. This ensures that the two first pressing ends 1222 and the two second pressing ends 1322 can simultaneously and respectively press against the four sides of the circuit board, thereby ensuring that the circuit board is clamped. The adjustment process of the position of the second support end 1321 on the fixing base 131 is the same as the adjustment process of the position of the first support end 1221 on the guide block 121. Refer to the above-described adjustment process of the position of the first support end 1221 on the guide block 121, and it will not be described in detail here.

[0067] Specifically, the linear guide rail 18 is provided on one of the cover plate 11 and the fixed base 131, and a slider is provided on the other. The specific setting process will not be described in detail. Please refer to the above setting process of setting the linear guide rail 18 and slider on the cover plate 11 and the guide block 121.

[0068] Furthermore, such as Figure 4 and Figure 5As shown, protective adhesive 1223 is applied to the ends of both the first pressing end 1222 and the second pressing end 1322. This prevents the first pressing end 1222 or the second pressing end 1322 from touching or scratching the circuit board and the inner wall of the chassis during the clamping process, thus better protecting the circuit board and other structures inside the chassis. The protective adhesive 1223 is applied to the first pressing end 1222 and the second pressing end 1322 using an integrated molding process, ensuring comprehensive and tight coverage of the protective adhesive at the ends of the first pressing end 1222 or the second pressing end 1322, preventing it from peeling off. The protective adhesive 1223 can be any commonly used adhesive in the prior art.

[0069] Specifically, such as Figure 2 and Figure 3 As shown, both first clamping jaws 122 have a first pressing end 1222, one of the two second clamping jaws 132 has two second pressing ends 1322, and the other of the two second clamping jaws 132 has one second pressing end 1322; that is to say, the two first clamping assemblies 12 have the same structure, and the two second clamping assemblies 13 have the same structure except for the number of second pressing ends 1322 of the second clamping jaws 132.

[0070] By providing two second pressing ends 1322 in a second clamping jaw 132, when clamping the circuit board, the second clamping jaw 132 with two second pressing ends 1322 clamps one side of the circuit board with a groove in the middle position. That is, the two second pressing ends 1322 press against the two sides of the groove respectively, thereby ensuring that the clamping force of the two first clamping jaws 122 and the two second clamping jaws 132 on each side of the entire circuit board is appropriate, avoiding the problem of excessive clamping force damaging the circuit board or insufficient clamping force failing to clamp.

[0071] Furthermore, such as Figure 3 and Figure 4 As shown, the main fixture 1 also includes a first limiting component 16. The first limiting component 16 is used to limit the movement distance of the guide block 121 towards the support block 15 in the first direction. That is, the first limiting component 16 can limit the distance between the two first clamping components 12 and each other, thereby controlling the clamping force of the first pressing end 1222 of the two first jaws 122 on the circuit board in the first direction. In turn, it can also control the clamping force of the second pressing end 1322 of the two second jaws 132 on the circuit board in the second direction, so as to avoid the problem of excessive deformation and damage to the circuit board caused by excessive clamping force.

[0072] Specifically, such as Figure 3 and Figure 4As shown, the first limiting assembly 16 includes a first limiting screw 161 and a first top block 162; wherein, the first limiting screw 161 extends along a first direction; the first top block 162 is fixedly mounted on the cover plate 11, and a ring 163 is protruding on the first top block 162, the end of the first limiting screw 161 can pass through the ring 163 and connect to the guide block 121, and the inner diameter of the ring 163 is smaller than the outer diameter of the head of the first limiting screw 161; when the two guide blocks 121 approach each other, the first limiting screw 161 can move in the ring 163 along the first direction; when the head of the first limiting screw 161 abuts against the ring 163, the ring 163 can restrict the further movement of the first limiting screw 161, at which point the two guide blocks 121 can no longer approach each other, and correspondingly, the two fixing seats 131 can no longer approach each other, that is, at this time the clamping force on the circuit board is the maximum. The relative distance between the head of the ring 163 and the first limiting screw 161 needs to be determined based on the specific working conditions and the actual clamping requirements of the circuit board.

[0073] Specifically, such as Figure 3 As shown, the first limiting components 16 on the two guide blocks 121 are arranged diagonally on the cover plate 11 so as to limit the mutual approach of the two guide blocks 121 from the two diagonal positions, thereby relatively smoothly limiting the further approach of the two guide blocks 121 and achieving a good limiting effect on the guide blocks 121.

[0074] Furthermore, such as Figure 3 and Figure 4 As shown, the main fixture 1 also includes a second limiting component 17. The second limiting component 17 is used to limit the movement distance of the guide block 121 away from the support block 15 in the first direction. That is, the second limiting component 17 can limit the distance between the two first clamping components 12. On the one hand, it can control the distance between the clamping body 141 and the mating block 142 in the quick clamp 14, so as to avoid the distance between the clamping body 141 and the mating block 142 being too far and affecting the normal use function of the quick clamp 14. On the other hand, it can also control the distance of the first pressing end 1222 and the second pressing end 1322 moving towards the inner wall of the chassis, so as to avoid the problem of the first pressing end 1222 and the second pressing end 1322 pressing against the inner wall of the chassis and being damaged.

[0075] Specifically, such as Figure 3 and Figure 4As shown, the second limiting assembly 17 includes a second limiting screw 171 and a second top block 172; wherein, the second limiting screw 171 extends along a first direction, and the second limiting screw 171 and the first limiting screw 161 are disposed opposite to each other on the guide block 121 based on the first direction; the second top block 172 is fixedly disposed on the cover plate 11, and an abutment protrusion 173 is provided on the second top block 172, the second limiting screw 171 is located between the guide block 121 and the abutment protrusion 173, and the head of the second limiting screw 171 can abut against the abutment protrusion 173.

[0076] When the two guide blocks 121 and the two fixed seats 131 move away from each other, the guide block 121 can drive the second limiting screw 171 to move in the first direction. When the head of the second limiting screw 171 abuts against the abutting protrusion 173, the abutting protrusion 173 can restrict the further movement of the second limiting screw 171. At this time, the two guide blocks 121 can no longer move away from each other, and correspondingly, the two fixed seats 131 can no longer move away from each other. That is, at this time, both the first pressing end 1222 and the second pressing end 1322 have moved to their farthest distance. The relative distance between the abutting protrusion 173 and the head of the second limiting screw 171 needs to be determined according to the specific working conditions and the distance requirement.

[0077] Specifically, such as Figure 3 As shown, the second limiting components 17 on the two guide blocks 121 are also arranged diagonally on the cover plate 11. That is to say, the first limiting component 16 and the second limiting component 17 are alternately arranged at the four corners of the square structure formed by the two guide blocks 121. This can also limit the mutual distance between the two guide blocks 121 from the two diagonal positions, thereby relatively smoothly limiting the further distance between the two guide blocks 121, so as to have a better limiting effect on the guide blocks 121.

[0078] Furthermore, such as Figure 1 and Figure 4 As shown, multiple weight-reducing holes 112 are provided on the cover plate 11, the two guide blocks 121 and the two fixing seats 131. At the same time, multiple weight-reducing grooves 124 are provided on the two first grippers 122, the two second grippers 132, the two guide blocks 121 and the two fixing seats 131. This makes the main fixture 1 lighter and is beneficial to the weight reduction of the entire circuit board mounting equipment.

[0079] Specifically, the cover plate 11 is made of anti-static transparent acrylic material, which on the one hand makes the cover plate 11 lighter, thereby making the entire main fixture 1 lighter; on the other hand, it can prevent the cover plate 11 from being bumped and scratched, so as to better protect the circuit board and the chassis.

[0080] Furthermore, such as Figure 1As shown, a handle 113 and a protective cover 111 are also provided on the cover plate 11; the handle 113 facilitates lifting the entire main fixture 1; the protective cover 111 is located on the top surface of the first gripper 122, the second gripper 132, the guide block 121, and the fixing base 131, so that the protective cover 111 can protect the exposed structures of the four clamping components 10; the protective cover 111 is made of aluminum alloy or other lightweight materials to make the protective cover 111 lighter, thereby making the main fixture 1 lighter. In this embodiment, the weight of the entire main fixture 1 is 1.3 kg.

[0081] Specifically, such as Figure 6 As shown, the circuit board mounting equipment also includes a first limiting seat 2, which is used to place the circuit board before interference mounting so that the two first jaws 122 and the two second jaws 132 can accurately pick up the circuit board from the first limiting seat 2 and move it into the annular groove, thereby facilitating the subsequent interference mounting of the circuit board.

[0082] Furthermore, a first mounting hole is provided on the circuit board; such as Figure 6 As shown, the first limiting seat 2 includes a first base 21 and four first limiting blocks 22. The four first limiting blocks 22 are arranged around the first base 21. Each first limiting block 22 has a limiting protrusion 223 on its top surface, and a limiting post 221 is also provided on the top surface of one of the first limiting blocks 22. When it is necessary to install the circuit board on the first limiting seat 2, the circuit board is placed horizontally on the four first limiting blocks 22, and the limiting post 221 is inserted into the first mounting hole, so that the entire circuit board is limited to the inside of each limiting protrusion 223. This allows the circuit board to be accurately placed on the first limiting seat 2, and the L-shaped notch on the circuit board is set to face the lower left along the second direction. At this time, the nameplate on the first base 21 is set to face the upper right along the second direction.

[0083] Specifically, such as Figure 6 As shown, a plurality of clamping clips 224 are also provided on the first base 21. The clamping clips 224 are used to press the circuit board onto the four first limiting blocks 22, so that the circuit board can be stably placed on the four first limiting blocks 22. When the main fixture 1 needs to clamp the circuit board, it can simply push up the clamping clips 224. That is to say, the clamping clips 224 will not interfere with the operation of the main fixture 1 in clamping the circuit board. In this embodiment, the clamping clips 224 can adopt the quick clamp structure commonly used in the prior art.

[0084] Specifically, such as Figure 6 and Figure 7As shown, a limiting pin 114 and a clearance slot 115 are respectively provided on the bottom end face of the cover plate 11. A second mounting hole is also provided on the circuit board, and a limiting hole 222 is also provided on the top surface of each first limiting block 22. When the main fixture 1 needs to be used to lift the circuit board from the first limiting seat 2, the limiting pin 114 passes through the second mounting hole and the limiting hole 222 in sequence, and the limiting protrusion 223 can be engaged in the clearance slot 115, thereby completing the alignment of the main fixture 1 and the circuit board. At this time, the two first jaws 122 and the two second jaws 132 can then be used to clamp the circuit board from the four first limiting blocks 22.

[0085] Furthermore, such as Figure 8 As shown, the circuit board mounting equipment also includes a second limiting seat 3, which is used to mount the chassis so that the position of the chassis can match the position of the circuit board, thereby facilitating the accurate mounting of the circuit board in the annular groove.

[0086] Specifically, such as Figure 8 As shown, the second limiting seat 3 includes a second base 31 and four second limiting blocks 32. The four second limiting blocks 32 are arranged around the second base 31. Multiple second protrusions 33 are provided on the second base 31 and are located inside the four second limiting blocks 32. At the same time, multiple locking holes are provided on the bottom end face of the chassis. The second protrusions 33 can be locked into the locking holes to limit the chassis inside the four second limiting blocks 32. The limiting protrusions on the chassis are arranged upward along the second direction, so as to ensure that the circuit board clamped by the two first grippers 122 and the two second grippers 132 from the first limiting seat 2 can be accurately installed in the annular groove inside the chassis without any positional deviation between the circuit board and the annular groove.

[0087] Furthermore, such as Figure 7 As shown, mounting slots 117 are respectively provided on opposite sides of the cover plate 11, and a first protrusion is provided on the chassis. The first protrusion can be engaged in the mounting slots 117 to accurately position the cover plate 11 on the chassis, which is beneficial to the accurate installation of the circuit board. Furthermore, the limiting pin 114 on the cover plate 11, which passes through the second mounting hole, is inserted into the third mounting hole in the chassis, and the guide screws are sequentially inserted into the guide sleeve 116 on the cover plate 11, the circuit board, and the chassis, thereby enabling the cover plate 11 to be stably positioned on the chassis.

[0088] The specific working process of the circuit board mounting equipment in this embodiment is as follows:

[0089] Before installing the circuit board:

[0090] First, the circuit board is placed horizontally on the four first limiting blocks 22 on the first base 21. At the same time, the limiting posts 221 on the first limiting blocks 22 are inserted into the first mounting holes of the circuit board, and the entire circuit board is limited to the inside of each limiting protrusion 223 on the first limiting blocks 22. The L-shaped notch on the circuit board is set to face the lower left in the second direction. At this time, the nameplate on the first base 21 is set to face the upper right in the second direction, so that the circuit board can be accurately placed on the first limiting seat 2.

[0091] At the same time, each of the second protrusions 33 on the second base 31 is inserted into each of the slots on the bottom surface of the chassis, and the chassis is limited inside the four second limiting blocks 32, and the limiting protrusions on the chassis are set upward along the second direction, so that the chassis can be accurately placed on the second limiting seat 3.

[0092] When installing the circuit board:

[0093] First, the entire main fixture 1 is moved above the first limiting seat 2. Then, the limiting pin 114 on the cover plate 11 passes through the second mounting hole on the circuit board and the limiting hole 222 on the first limiting block 22 in sequence. At the same time, the limiting protrusion 223 on the first limiting block 22 can engage with the clearance slot 115 on the cover plate 11, thereby accurately placing the main fixture 1 on the first limiting seat 2. During the entire circuit board installation process, the entire main fixture 1 will not rotate, and the main fixture 1 will always remain in a fixed position. Figure 1 The main fixture 1, the first limiting seat 2, and the second limiting seat 3 are all positioned in the correct orientation to operate. Figure 1 Within the coordinate system formed by arrows A and B.

[0094] Then, the clamping body 141 of the quick clamp 14 is pressed down so that the quick clamp 14 is in a pressed state. At this time, the clamping body 141 and the mating block 142 of the quick clamp 14 can be fastened together and brought closer together, thereby driving the two guide blocks 121 to move closer together along the first direction. The two guide blocks 121 can respectively drive the two first jaws 122 to move closer together, so that the first pressing end 1222 of the two first jaws 122 moves to the two sides of the pressing circuit board along the first direction. At this time, the first elastic member 123 is compressed.

[0095] Simultaneously, the guide block 121 can drive the fixed seat 131 to move along the second direction through the ball bearing 191, so that the two second grippers 132 move closer to each other along the second direction, so that the second pressing ends 1322 of the two second grippers 132 move to press the two sides of the circuit board along the second direction. At this time, the second elastic element 133 is compressed. Thus, the two first grippers 122 and the two second grippers 132 simultaneously clamp the circuit board and can squeeze the circuit board towards the center of the circuit board. Since the circuit board will be slightly deformed under the clamping and pressing action of the first grippers 122 and the second grippers 132, the size of the circuit board will be slightly smaller. Then, the entire main fixture 1 is moved from the first limiting seat 2 to the top of the chassis. At this time, the main fixture 1 is clamped with the circuit board, and the circuit board is located on the bottom surface of the cover plate 11.

[0096] Then, the first protrusion on the chassis is snapped into the mounting slot 117 on the cover plate 11 to accurately position the cover plate 11 on the chassis, which facilitates the accurate installation of the circuit board. Furthermore, the limiting pin 114 on the cover plate 11, which passes through the second mounting hole, is inserted into the third mounting hole inside the chassis, and the guide screws are sequentially inserted into the guide sleeve 116 on the cover plate 11, the circuit board, and the chassis, thereby enabling the cover plate 11 to be set more stably on the chassis. At the same time, the circuit board on the main fixture 1 is positioned in the annular groove inside the chassis.

[0097] Finally, push up the clamping body 141 of the quick clamp 14 to eliminate the clamping force between the clamping body 141 and the mating block 142. That is to say, there is no mutual tension between the two guide blocks 121 at this time, which also eliminates the force of the guide block 121 on the fixed seat 131. At this time, the first elastic member 123 can drive the guide block 121 to move away from the support block 15 in the first direction, that is, the two guide blocks 121 move away from each other, so that the first pressing end 1222 of the first clamp 122 is disengaged from the circuit board. At the same time, the second elastic member 133 can drive the fixed seat 131 to move away from the support block 15 in the second direction, that is, the two fixed seats 131 move away from each other, so that the second pressing end 1322 of the second clamp 132 is disengaged from the circuit board. At this time, since the circuit board is not subjected to the squeezing force of the first clamp 122 and the second clamp 132, the circuit board can return to its initial size, so that the circuit board can directly abut against the inner wall of the annular groove, thereby realizing the automatic interference fit of the circuit board into the annular groove in the chassis. Then, the main fixture 1 can be removed from the chassis.

[0098] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A circuit board mounting device for interference-fitting circuit boards into an annular groove inside a chassis, the circuit board mounting device comprising a main fixture (1), characterized in that, The main fixture (1) includes: Cover plate (11); Four interconnected clamping assemblies (10), wherein two of the clamping assemblies (10) are spaced apart on the cover plate (11) along a first direction, and the other two clamping assemblies (10) are spaced apart on the cover plate (11) along a second direction. The four clamping assemblies (10) can approach each other to simultaneously and respectively abut against the four sides of the circuit board, and can press the sides of the circuit board inward toward the center of the circuit board. The first direction is perpendicular to the second direction. A quick clamp (14) is connected to two clamping assemblies (10) parallel to it. The quick clamp (14) is used to provide tension to the clamping assemblies (10) to drive the four clamping assemblies (10) to move closer to each other, or to release the tension on the clamping assemblies (10). A support block (15) is provided at the center of each of the four clamping assemblies (10), and the support block (15) is fixedly mounted on the cover plate (11); the four clamping assemblies (10) include two opposing first clamping assemblies (12), which are capable of clamping two sides of the circuit board respectively along the first direction, and the first clamping assembly (12) includes: Guide block (121), the guide block (121) is slidably disposed on the cover plate (11) along the first direction, and the two ends of the quick clamp (14) are respectively fixedly disposed on the guide block (121) in the two first clamping assemblies (12); The first gripper (122) has a first support end (1221) disposed on the guide block (121), and the first pressing end (1222) of the first gripper (122) passes through the cover plate (11) and extends downward. The first pressing end (1222) is capable of moving within the cover plate (11) along the first direction. The first elastic element (123) has one end fixedly connected to the support block (15) and the other end fixedly connected to the end of the guide block (121) where the first gripper (122) is not provided. The quick clip (14) includes: The mating block (142) and the clamping body (141) are respectively fixedly mounted on the two guide blocks (121). The mating block (142) and the clamping body (141) are connected and can be tightened or loosened by each other.

2. The circuit board mounting equipment as described in claim 1, characterized in that, The first support end (1221) is positioned on the guide block (121) in an adjustable manner. The guide block (121) is provided with a rectangular hole extending along the first direction. An adjusting protrusion is provided on the bottom surface of the first support end (1221). An adjusting screw (125) is provided on the guide block (121). The end of the adjusting screw (125) passes through the guide block (121) and abuts against the adjusting protrusion. Rotating the adjusting screw (125) can drive the adjusting protrusion to move within the rectangular hole.

3. The circuit board mounting equipment as described in claim 1, characterized in that, The four clamping assemblies (10) further include two opposing second clamping assemblies (13), which are capable of clamping the other two sides of the circuit board along the second direction, respectively. The second clamping assemblies (13) include: A fixed seat (131) is disposed on the cover plate (11). The fixed seat (131) is movably connected to the guide block (121). The guide block (121) can drive the fixed seat (131) to slide on the cover plate (11) along the second direction. The two guide blocks (121) and the two fixed seats (131) surround the outer periphery of the support block (15). The second gripper (132) has a second support end (1321) disposed on the fixed base (131), and the second pressing end (1322) of the second gripper (132) passes through the cover plate (11) and extends downward. The position of the second support end (1321) on the fixed base (131) is adjustable, and the second pressing end (1322) can move in the cover plate (11) along the second direction. The second elastic element (133) is fixedly connected at one end to the support block (15) and at the other end to the fixed base (131) where the second gripper (132) is not provided.

4. The circuit board mounting equipment as described in claim 3, characterized in that, Both of the first jaws (122) have a first pressing end (1222), one of the two second jaws (132) has two second pressing ends (1322), and the other second jaw (132) has one second pressing end (1322).

5. The circuit board mounting equipment as described in any one of claims 1-4, characterized in that, The main fixture (1) further includes a first limiting component (16), which is used to limit the movement distance of the guide block (121) towards the support block (15) in the first direction. The first limiting component (16) includes: A first limiting screw (161) extends along the first direction; A first top block (162) is fixedly mounted on the cover plate (11). A ring (163) protrudes from the first top block (162). The end of the first limiting screw (161) passes through the ring (163) and is connected to the guide block (121). The first limiting screw (161) can move in the first direction within the ring (163), and the inner diameter of the ring (163) is smaller than the outer diameter of the head of the first limiting screw (161).

6. The circuit board mounting equipment as described in claim 5, characterized in that, The main fixture (1) further includes a second limiting component (17), which is used to limit the movement distance of the guide block (121) away from the support block (15) in the first direction. The second limiting component (17) includes: A second limiting screw (171) extends along the first direction and is disposed opposite to the first limiting screw (161) on the guide block (121). The second top block (172) is fixedly disposed on the cover plate (11). The second top block (172) is provided with an abutment protrusion (173). The second limiting screw (171) is located between the guide block (121) and the abutment protrusion (173), and the second limiting screw (171) can abut against the abutment protrusion (173).

7. The circuit board mounting equipment as described in any one of claims 1-4, characterized in that, The bottom end face of the cover plate (11) is provided with a limit pin (114) and a clearance groove (115), the circuit board is provided with a first mounting hole and a second mounting hole, and the circuit board mounting device further includes: The first limiting seat (2) is used to place the circuit board before interference mounting. The first limiting seat (2) includes a first base (21) and four first limiting blocks (22). The four first limiting blocks (22) are arranged around the first base (21). Each first limiting block (22) has a limiting hole (222) and a limiting protrusion (223) on its top surface. One of the first limiting blocks (22) also has a limiting post (221) on its top surface. The limiting post (221) can be inserted into the first mounting hole. The limiting pin (114) can pass through the second mounting hole and the limiting hole (222) in sequence. The limiting protrusion (223) can be engaged in the clearance slot (115).

8. The circuit board mounting equipment as described in any one of claims 1-4, characterized in that, The cover plate (11) has mounting slots (117) on both opposite sides. The chassis has a first protrusion that can be engaged into the mounting slot (117). The circuit board mounting device also includes: The second limiting seat (3) is used to place the chassis. The second limiting seat (3) includes a second base (31) and four second limiting blocks (32). The four second limiting blocks (32) are arranged around the second base (31). The second base (31) is provided with a plurality of second protrusions (33). The plurality of second protrusions (33) are located inside the four second limiting blocks (32). The bottom end face of the chassis is provided with a plurality of locking holes. The second protrusions (33) can be locked into the locking holes.

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