Circuit board installation equipment

Abstract

The present invention relates to the technical field of circuit board installation, and discloses a circuit board installation device. The circuit board installation device includes a main fixture, and the main fixture includes: a cover plate; four interconnected clamping components, wherein two of the clamping components are arranged on the cover plate at intervals along a first direction, and the other two clamping components are arranged on the cover plate at intervals along a second direction. The four clamping components can approach each other to simultaneously and respectively abut against and squeeze the four sides of the circuit board; a quick clamp, which is connected to two of the parallel clamping components, and the quick clamp is used to provide a tension force to the clamping components to drive the four clamping components to approach each other, or release the tension force on the clamping components. The circuit board installation device can automatically install the circuit board in an interference fit in an annular groove in the chassis, without damaging the circuit board, and has high installation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board installation, and particularly to circuit board installation equipment. Background Art

[0002] During the installation of a circuit board, it is usually necessary to press-fit the circuit board into an annular groove inside the chassis so that the circuit board can work more stably inside the chassis. Currently, the press-fit installation of the circuit board is usually carried out manually. However, since the size of the circuit board needs to be slightly larger than the size of the annular groove during the press-fit installation, it is very easy to damage the circuit board due to improper installation when using the manual installation method, which cannot guarantee the normal use function of the circuit board, and is time-consuming and laborious with low installation efficiency.

[0003] Therefore, there is an urgent need for circuit board installation equipment that can solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit board installation equipment that can automatically press-fit the circuit board into the annular groove inside the chassis without damaging the circuit board, saving time and effort and having a high installation efficiency.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A circuit board installation equipment for press-fitting a circuit board into an annular groove inside a chassis, the circuit board installation equipment includes a main fixture, and the main fixture includes:

[0007] A cover plate;

[0008] Four interconnected clamping components, two of the clamping components are arranged at intervals along a first direction on the cover plate, and the other two clamping components are arranged at intervals along a second direction on the cover plate. The four clamping components can approach each other to simultaneously and respectively abut against the four sides of the circuit board, and can squeeze the sides of the circuit board inward towards the center of the circuit board. The first direction is perpendicular to the second direction;

[0009] A quick clamp is connected to two of the clamping components that are parallel to each other. The quick clamp is used to provide a pulling force to the clamping components to drive the four clamping components to approach each other, or to release the pulling force on the clamping components.

[0010] Furthermore, a support block is provided at the center of the four clamping components, and the support block is fixedly arranged on the cover plate; the four clamping components include two relatively arranged first clamping components, and the two first clamping components can respectively clamp two sides of the circuit board along the first direction. The first clamping component includes:

[0011] A guiding block, which is slidably arranged on the cover plate along the first direction, and both ends of the quick clamp are fixedly arranged on the guiding blocks in the two first clamping components respectively;

[0012] A first jaw, the first supporting end of the first jaw is arranged on the guiding block, the first pressing end of the first jaw passes through the cover plate and extends downward, and the first pressing end can move along the first direction within the cover plate;

[0013] A first elastic member, one end of the first elastic member is fixedly connected to the supporting block, and the other end of the first elastic member is fixedly connected to the end of the guiding block where the first jaw is not arranged.

[0014] Further, the quick clamp includes:

[0015] A mating block and a clamp body, the mating block and the clamp body are respectively fixedly arranged on the two guiding blocks, the mating block and the clamp body are connected, and the mating block and the clamp body can be tightened or loosened from each other.

[0016] Further, the four clamping components further include two relatively arranged second clamping components, and the two second clamping components can respectively clamp the other two sides of the circuit board along the second direction. The second clamping component includes:

[0017] A fixed seat, arranged on the cover plate, the fixed seat is movably connected to the guiding block, the guiding block can drive the fixed seat to slide on the cover plate along the second direction, and the two guiding blocks and the two fixed seats surround the outer periphery of the supporting block;

[0018] A second jaw, the second supporting end of the second jaw is arranged on the fixed seat, the second pressing end of the second jaw passes through the cover plate and extends downward, the setting position of the second supporting end on the fixed seat is adjustable, and the second pressing end can move along the second direction within the cover plate;

[0019] A second elastic member, one end of the second elastic member is fixedly connected to the supporting block, and the other end of the second elastic member is fixedly connected to the end of the fixed seat where the second jaw is not arranged.

[0020] Further, each of the two first jaws has one first pressing end, one of the two second jaws has two second pressing ends, and the other second jaw has one second pressing end.

[0021] Further, the main fixture further includes a first limiting component for limiting the moving distance of the guiding block approaching the supporting block in the first direction. The first limiting component includes:

[0022] A first limiting screw extending along the first direction;

[0023] A first top block fixedly arranged on the cover plate. A ring is convexly provided on the first top block. The end of the first limiting screw passes through the ring and is connected to the guiding block. The first limiting screw can move along the first direction within the ring, and the inner diameter of the ring is smaller than the outer diameter of the head of the first limiting screw.

[0024] Further, the main fixture further includes a second limiting component for limiting the moving distance of the guiding block moving away from the supporting block in the first direction. The second limiting component includes:

[0025] A second limiting screw extending along the first direction. The second limiting screw and the first limiting screw are oppositely arranged on the guiding block;

[0026] A second top block fixedly arranged on the cover plate. An abutting protrusion is arranged on the second top block. The second limiting screw is located between the guiding block and the abutting protrusion, and the second limiting screw can abut against the abutting protrusion.

[0027] Further, a limiting pin and an avoidance card slot are respectively arranged on the bottom end surface of the cover plate. A first mounting hole and a second mounting hole are arranged on the circuit board. The circuit board mounting device further includes:

[0028] A first limiting seat for placing the circuit board before interference fit mounting. The first limiting seat includes a first base and four first limiting blocks. The four first limiting blocks are arranged around the first base. A limiting hole and a limiting protrusion are arranged on the top end surface of each first limiting block. A limiting column is further arranged on the top end surface of one of the first limiting blocks. The limiting column can be inserted into the first mounting hole. The limiting pin can sequentially pass through the second mounting hole and the limiting hole, and the limiting protrusion can be clamped into the avoidance card slot.

[0029] Further, mounting card slots are respectively arranged on two opposite sides of the cover plate. A first convex block is arranged on the chassis. The first convex block can be clamped into the mounting card slot. The circuit board mounting device further includes:

[0030] 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. A plurality of second bumps are arranged on the second base, and the plurality of second bumps are located inside the four second limiting blocks. A plurality of card holes are arranged on the bottom end surface of the chassis, and the second bumps can be clamped into the card holes.

[0031] The beneficial effects of the present invention are as follows:

[0032] By arranging four clamping assemblies that are cross-shaped and connected to each other on the cover plate, and connecting the quick clamp to two clamping assemblies parallel to it; when the circuit board needs to be installed in the annular groove, the quick clamp provides a pulling force to the two clamping assemblies connected to it to drive the four clamping assemblies to approach each other, so that the four clamping assemblies can respectively clamp and squeeze the four sides of the circuit board close to the center of the circuit board to pick up the circuit board and place it in the annular groove; since the four clamping assemblies respectively squeeze the four sides of the circuit board, the size of the circuit board can be slightly reduced; then the quick clamp releases the pulling force on the clamping assemblies, and at this time the four clamping assemblies no longer clamp the circuit board, so that the size of the circuit board is restored to be able to abut against the inner wall of the annular groove, thereby achieving the purpose of press-fitting the circuit board into the annular groove; in this way, the circuit board can be automatically press-fitted into the annular groove inside the chassis, avoiding the problem that the circuit board is easily damaged during manual installation, ensuring the normal use function of the circuit board, and saving time and effort, with high installation efficiency. Description of the Drawings

[0033] Figure 1 is the structural schematic diagram of the main treatment tool provided by the present invention Figure 1 ;

[0034] Figure 2 is the structural schematic diagram of the main treatment tool (excluding the protective cover) provided by the present invention Figure 2 ;

[0035] Figure 3 is the structural schematic diagram of the main treatment tool (excluding the protective cover, handle and quick clamp) provided by the present invention Figure 3 ;

[0036] Figure 4 is the structural schematic diagram of the first clamping assembly, the first limiting assembly and the second limiting assembly provided by the present invention;

[0037] Figure 5 is the structural schematic diagram of the second clamping assembly (the second jaw has two second pressing ends) provided by the present invention;

[0038] Figure 6 is the structural schematic diagram of the first limiting seat provided by the present invention;

[0039] Figure 7 It is a schematic structural diagram of the bottom end face of the cover plate provided by the present invention;

[0040] Figure 8 It is a schematic structural diagram of the second limit seat provided by the present invention.

[0041] Reference numerals:

[0042] 1 - Main fixture; 10 - Clamping assembly; 11 - Cover plate; 111 - Protective cover; 112 - Weight reduction hole; 113 - Handle; 114 - Limit pin; 115 - Avoidance slot; 116 - Guide sleeve; 117 - Installation slot; 12 - First clamping assembly; 121 - Guide block; 122 - First jaw; 1221 - First support end; 1222 - First pressing end; 1223 - Protective glue; 123 - First elastic member; 124 - Weight reduction groove; 125 - Adjusting screw; 13 - Second clamping assembly; 131 - Fixed seat; 1311 - Oblique hole; 132 - Second jaw; 1321 - Second support end; 1322 - Second pressing end; 133 - Second elastic member; 14 - Quick clamp; 141 - Clamp body; 142 - Fitting block; 15 - Support block; 16 - First limit assembly; 161 - First limit screw; 162 - First top block; 163 - Ring; 17 - Second limit assembly; 171 - Second limit screw; 172 - Second top block; 173 - Contact projection; 18 - Linear guide rail; 19 - Connecting shaft; 191 - Ball bearing

[0043] 2 - First limit seat; 21 - First base; 22 - First limit block; 221 - Limit post; 222 - Limit hole; 223 - Limit projection; 224 - Pressing clamp

[0044] 3 - Second limit seat; 31 - Second base; 32 - Second limit block; 33 - Second projection Detailed implementation manners

[0045] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the drawings and through specific implementation manners.

[0046] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the structures or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] During the installation process of the circuit board, it is usually necessary to press-fit the circuit board into the annular groove inside the chassis so that the circuit board can work more stably inside the chassis. Currently, the press-fit installation of the circuit board is usually carried out manually. However, since the size of the circuit board needs to be slightly larger than the size of the annular groove during the press-fit installation process, it is very easy to have problems such as improper installation and damage to the circuit board when using the manual installation method, which cannot guarantee the normal use function of the circuit board, and is time-consuming and laborious, with low installation efficiency.

[0050] For this reason, a circuit board installation device is proposed in this embodiment. This circuit board installation device is used to automatically press-fit the circuit board into the annular groove inside the chassis. Among them, the circuit board installation device in this embodiment can also be used for the automatic installation of workpieces similar to the circuit board structure, not limited to the circuit board in this embodiment. The circuit board and the chassis in this embodiment can adopt the common structures in the prior art.

[0051] Specifically, as Figures 1 - 3As shown in the figure, the circuit board mounting device includes a main fixture 1, which is used to grasp the circuit board and can press-fit the circuit board into the annular groove. Among them, the main fixture 1 includes a cover plate 11, a quick clamp 14, and four interconnected clamping components 10. Two of the four clamping components 10 are arranged at intervals along the first direction on the cover plate 11, and the other two clamping components 10 are arranged at intervals along the second direction on the cover plate 11. That is, the four clamping components 10 are arranged in a cross-shaped structure on the cover plate 11, and the four clamping components 10 can approach each other to simultaneously and respectively abut against the four sides of the circuit board and can squeeze the sides of the circuit board inward toward the center of the circuit board. The quick clamp 14 is connected to two of the clamping components 10 that are parallel to each other. The quick clamp 14 is used to provide a tensile force to the clamping components 10 to drive the four clamping components 10 to approach each other, or to release the tensile force on the clamping components 10.

[0052] That is to say, the quick clamp 14 has a pushing-up state and a pressing state. When the quick clamp 14 is in the pressing state, the tensile force provided by the quick clamp 14 can make the four clamping components 10 approach each other to respectively clamp and squeeze the four sides of the circuit board to pick up the circuit board and place it in the annular groove. When the quick clamp 14 is in the pushing-up state, the quick clamp 14 does not provide a tensile force to the clamping components 10. At this time, the four clamping components 10 no longer clamp the circuit board, so that the circuit board can directly abut against the inner wall of the annular groove, thereby press-fitting the circuit board into the annular groove. Among them, the first direction and the second direction are perpendicular to each other, the first direction is parallel to the length direction of the cover plate 11, the second direction is parallel to the width direction of the cover plate 11, and the first direction is specifically as Figures 1 - 3 shown by the arrow A in the figure, and the second direction is specifically as Figures 1 - 3 shown by the arrow B in the figure.

[0053] By providing four clamping components 10 arranged in a cross-shaped structure and connected to each other on the cover plate 11, and connecting the quick clamp 14 to two clamping components parallel to it; when it is necessary to install the circuit board in the annular groove, the quick clamp 14 provides a pulling force to the two clamping components connected to it to drive the four clamping components 10 to approach each other, so that the four clamping components 10 can respectively clamp and squeeze the four sides of the circuit board close to the center of the circuit board to pick up the circuit board and place it in the annular groove; since the four clamping components 10 respectively squeeze the four sides of the circuit board, the size of the circuit board can be slightly reduced; then the quick clamp 14 releases the pulling force on the clamping components 10, at this time the four clamping components 10 no longer clamp the circuit board, so that the size of the circuit board is restored to be able to abut against the inner wall of the annular groove, thereby achieving the purpose of press-fitting the circuit board into the annular groove; in this way, the circuit board can be automatically press-fitted into the annular groove inside the chassis. Compared with the manual installation method, the force on the circuit board is more uniform, the problem that the circuit board is easily damaged during manual installation can be avoided, the normal use function of the circuit board can be guaranteed, and it is time-saving and labor-saving, and the installation efficiency is relatively high.

[0054] Further, as Figures 1 - 3 shown, a support block 15 is provided at the central position of the four clamping components 10, and the support block 15 is fixedly arranged on the cover plate 11; the four clamping components 10 include two first clamping components 12 arranged oppositely in the first direction, and the two first clamping components 12 can respectively clamp the two sides of the circuit board along the first direction.

[0055] Specifically, as Figure 3 and Figure 4As shown in the figure, the first clamping assembly 12 includes a guide block 121, a first jaw 122, and a first elastic member 123. Among them, the guide block 121 is slidably arranged on the cover plate 11 in the first direction. Both ends of the quick clamp 14 are fixedly arranged on the guide blocks 121 in 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 jaw 122 is arranged on the guide block 121. The first pressing end 1222 of the first jaw 122 passes through the cover plate 11 and extends downward. The first pressing end 1222 can move in the first direction within the cover plate 11, so that the first pressing ends 1222 of the two first jaws 122 can clamp the circuit board in the first direction. One end of the first elastic member 123 is fixedly connected to the support block 15, and the other end of the first elastic member 123 is fixedly connected to the end of the guide block 121 where the first jaw 122 is not arranged. Among them, when the quick clamp 14 is in the pressed state, the quick clamp 14 can drive the two guide blocks 121 to approach each other in the first direction, so that the two first jaws 122 respectively clamp two sides of the circuit board in the first direction. At this time, the first elastic member 123 is compressed. When the quick clamp 14 is in the pushed-up state, the mutual tension force between the two guide blocks 121 is eliminated. At this time, the first elastic member 123 can drive the guide block 121 to move away from the support block 15, so that the first pressing end 1222 of the first jaw 122 is separated from the circuit board. In this embodiment, the first elastic member 123 may specifically be a compression spring.

[0056] By providing the first elastic member 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 member 123 can provide an elastic force to the first jaw 122, so that the first jaw 122 can move away from the circuit board, so that the first pressing end 1222 can be more easily separated from the circuit board, which is beneficial to the size recovery of the circuit board, so that the circuit board can directly abut against the inner wall of the annular groove.

[0057] Specifically, as Figure 4 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 in the first direction, and the slider can slide on the linear guide rail 18 to provide a guiding effect on the movement of the guide block 121 on the cover plate 11, so as to ensure the stability and accuracy of the movement of the guide block 121. In this embodiment, the linear guide rail 18 is provided on the cover plate 11, and the 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.

[0058] Further, the setting position of the first support end 1221 on the guiding block 121 can be adjusted so that the position of the first pressing end 1222 of the first clamping jaw 122 is appropriate, thereby ensuring that the two first pressing ends 1222 can simultaneously and respectively press against two sides of the circuit board in the first direction.

[0059] Specifically, as Figure 4 shown, a rectangular hole extending in the first direction is provided on the guiding block 121. An adjusting convex block is provided on the bottom end surface of the first support end 1221. An adjusting screw 125 is provided on the guiding block 121. The end of the adjusting screw 125 passes through the guiding block 121 and abuts against the adjusting convex block. Rotating the adjusting screw 125 can drive the adjusting convex block to move in the rectangular hole, so that the setting position of the first support end 1221 on the guiding block 121 can be adjusted.

[0060] Further, as Figure 1 and Figure 2 shown, the quick clamp 14 includes a mating block 142 and a clamp body 141. The mating block 142 and the clamp body 141 are respectively and fixedly provided on the two guiding blocks 121, and the mating block 142 and the clamp body 141 are connected. When the quick clamp 14 is in the pressed state, the mating block 142 and the clamp body 141 are tightened against each other to drive the two guiding blocks 121 to approach each other. When the quick clamp 14 is in the pushed-up state, the mating block 142 and the clamp body 141 are released from each other. At this time, there is no tightening force between the mating block 142 and the clamp body 141, that is, the mating block 142 and the clamp body 141 are in a released free state. The mating block 142 in this embodiment is specifically a block structure, and the clamp body 141 adopts a common quick clamp structure in the prior art, and one end of the quick clamp 14 is connected to the mating block 142.

[0061] Specifically, as Figures 1 - 3 shown, the four clamping assemblies 10 further include two second clamping assemblies 13 oppositely arranged in the second direction. The two second clamping assemblies 13 can respectively clamp the other two sides of the circuit board in the second direction, so as to cooperate with the two first clamping assemblies 12 to clamp the four sides of the circuit board.

[0062] Further, as Figure 3 and Figure 5As shown, the second clamping assembly 13 includes a fixed seat 131, a second jaw 132, and a second elastic member 133. Among them, the 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 along the second direction on the cover plate 11. The two guide blocks 121 and the two fixed seats 131 are sequentially disposed around the outer periphery of the support block 15. The second support end 1321 of the second jaw 132 is disposed on the fixed seat 131. The second pressing end 1322 of the second jaw 132 passes through the cover plate 11 and extends downward. The second pressing end 1322 can move along the second direction within the cover plate 11, so that the second pressing ends 1322 of the two second jaws 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 seat 131 where the second jaw 132 is not provided. The second elastic member 133 in this embodiment may specifically be a compression spring.

[0063] When the quick clamp 14 is in the pressing state, the quick clamp 14 can drive the two guide blocks 121 to approach each other along the first direction, so that the two first jaws 122 respectively clamp two sides of the circuit board in the first direction. At the same time, the guide block 121 can drive the two fixed seats 131 to approach each other along the second direction, so that the two second jaws 132 respectively clamp the other two sides of the circuit board, so as to be able to pick up the circuit board by the two first jaws 122 and the two second jaws 132. At this time, the second elastic member 133 is compressed. When the quick clamp 14 is in the pushing-up state, since the mutual tension between the two guide blocks 121 is eliminated, the acting force of the guide block 121 on the fixed seat 131 is also eliminated. At this time, the second elastic member 133 can drive the fixed seat 131 to move away from the support block 15, so that the second pressing end 1322 of the second jaw 132 is separated from the circuit board. Among them, the function of the second elastic member 133 is similar to that of the first elastic member 123, and will not be further described here.

[0064] Specifically, as Figures 3 - 5As shown, two inclined holes 1311 are provided on each fixed seat 131. The two inclined holes 1311 are symmetrically arranged with respect to the second direction, and in the direction close to the support block 15, the distance between the two inclined holes 1311 gradually increases. A ball bearing 191 is arranged in each inclined hole 1311. A connecting shaft 19 is vertically arranged in the guide block 121. The connecting shaft 19 passes through the inner ring of the roller bearing and both ends of the connecting shaft 19 are fixedly connected to the guide block 121. When the guide block 121 moves in the first direction, the guide block 121 can drive the connecting shaft 19 to move, so that the connecting shaft 19 can drive the fixed seat 131 to move in the second direction through the roller bearing, so as to achieve the purpose of driving the fixed seat 131 to move by the guide block 121. In other embodiments, other movable connection structures can also be provided between the fixed seat 131 and the guide block 121, as long as it can ensure that the fixed seat 131 is driven by the guide block 121 to move in the second direction.

[0065] Specifically, the setting position of the second support end 1321 on the fixed seat 131 can also be adjusted, so that the position of the second pressing end 1322 of the second jaw 132 is more appropriate, so as to be adapted to the positions of the first pressing ends 1222 of the two first jaws 122, and further ensure 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, so as to ensure that the circuit board is clamped. Among them, the adjustment process of the setting position of the second support end 1321 on the fixed seat 131 is the same as the position adjustment process of the first support end 1221 on the guide block 121. Refer to the above position adjustment process of the first support end 1221 on the guide block 121, and no specific description will be given here.

[0066] Specifically, the above linear guide rail 18 is also provided on one of the cover plate 11 and the fixed seat 131, and a slider is provided on the other. The specific setting process will not be described in detail, and reference can be made to the above setting process of the linear guide rail 18 and the slider on the cover plate 11 and the guide block 121.

[0067] Further, as Figure 4 and Figure 5As shown, protective glue 1223 is provided at the ends of the first pressing end 1222 and the second pressing end 1322, so as to avoid the first pressing end 1222 or the second pressing end 1322 from touching and scratching the circuit board and the inner wall of the chassis during the process of clamping the circuit board, thereby being able to better protect the circuit board and other structures inside the chassis. Among them, the protective glue 1223 is provided on the first pressing end 1222 and the second pressing end 1322 by using an integrally formed encapsulation process, so that the protective glue 1223 is more comprehensively and tightly coated on the ends of the first pressing end 1222 or the second pressing end 1322, and there will be no problem of falling off. Among them, the protective glue 1223 can use the common glue in the existing technology.

[0068] Specifically, as Figure 2 and Figure 3 shown, both of the two 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 second clamping jaw 132 of the two second clamping jaws 132 has a second pressing end 1322; that is to say, the structures of the two first clamping assemblies 12 are the same, and the structures of the two second clamping assemblies 13 are the same except for the different numbers of the second pressing ends 1322 of the second clamping jaws 132.

[0069] By providing two second pressing ends 1322 in one second clamping jaw 132, when clamping the circuit board, the second clamping jaw 132 provided with two second pressing ends 1322 clamps the side of the circuit board with a groove in the middle position, that is, the two second pressing ends 1322 respectively press against both sides of the groove, so as to ensure that the clamping forces of the two first clamping jaws 122 and the two second clamping jaws 132 on each side of the entire circuit board are more appropriate, and avoid the problems of damaging the circuit board due to excessive clamping force on the circuit board or not clamping tightly due to too small clamping force.

[0070] Furthermore, as Figure 3 and Figure 4 shown, the main fixture 1 further includes a first limiting component 16. The first limiting component 16 is used to limit the moving distance of the guiding block 121 approaching the supporting block 15 in the first direction, that is, the distance between the two first clamping assemblies 12 approaching each other can be limited through the first limiting component 16, so as to be able to control the clamping force of the first pressing ends 1222 of the two first clamping jaws 122 on the circuit board in the first direction, and further be able to control the clamping force of the second pressing ends 1322 of the two second clamping jaws 132 on the circuit board in the second direction, so as to avoid the problem of damage caused by excessive deformation of the circuit board due to excessive clamping force on the circuit board.

[0071] Specifically, as Figure 3 and Figure 4As shown, the first limiting component 16 includes a first limiting screw 161 and a first top block 162. Among them, the first limiting screw 161 extends along the first direction. The first top block 162 is fixedly arranged on the cover plate 11. A ring 163 protrudes from the first top block 162. The end of the first limiting screw 161 can pass through the ring 163 and be connected to the guiding 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 guiding blocks 121 approach each other, the first limiting screw 161 can move along the first direction within the ring 163. When the head of the first limiting screw 161 abuts against the ring 163, the ring 163 can limit the further movement of the first limiting screw 161. At this time, the two guiding blocks 121 cannot continue to approach each other. Correspondingly, the two fixed seats 131 cannot continue to approach each other either, that is, the clamping force on the circuit board is the largest at this time. Among them, the relative distance between the ring 163 and the head of the first limiting screw 161 needs to be determined according to the specific working conditions and the actual clamping requirements of the circuit board.

[0072] Specifically, as Figure 3 shown, the first limiting components 16 on the two guiding blocks 121 are arranged diagonally on the cover plate 11, so as to be able to limit the approach of the two guiding blocks 121 from two diagonal positions, thereby being able to relatively stably limit the further approach of the two guiding blocks 121 and having a good limiting effect on the guiding blocks 121.

[0073] Furthermore, as Figure 3 and Figure 4 shown, the main fixture 1 further includes a second limiting component 17. The second limiting component 17 is used to limit the moving distance of the guiding block 121 away from the supporting block 15 in the first direction, that is, the distance at which the two first clamping components 12 move away from each other can be limited by the second limiting component 17. On the one hand, the distance at which the clamping body 141 and the matching block 142 in the quick clamp 14 move away from each other can be controlled, avoiding the problem that the distance between the clamping body 141 and the matching block 142 is too far and affecting the normal use function of the quick clamp 14. On the other hand, the moving distance of the first pressing end 1222 and the second pressing end 1322 moving towards the inner wall of the chassis can also be controlled, avoiding the problem that the first pressing end 1222 and the second pressing end 1322 press against the inner wall of the chassis and are damaged.

[0074] Specifically, as Figure 3 and Figure 4As shown, the second limit component 17 includes a second limit screw 171 and a second top block 172; wherein, the second limit screw 171 extends along the first direction, and the second limit screw 171 and the first limit screw 161 are oppositely arranged on the guide block 121 along the first direction; the second top block 172 is fixedly arranged on the cover plate 11, and an abutting protrusion 173 is arranged on the second top block 172. The second limit screw 171 is located between the guide block 121 and the abutting protrusion 173, and the head of the second limit screw 171 can abut against the abutting protrusion 173.

[0075] When the two guide blocks 121 move away from each other and the two fixing seats 131 move away from each other, the guide block 121 can drive the second limit screw 171 to move in the first direction. When the head of the second limit screw 171 abuts against the abutting protrusion 173, the abutting protrusion 173 can limit the further movement of the second limit screw 171. At this time, the two guide blocks 121 cannot move away from each other any further. Correspondingly, the two fixing seats 131 also cannot move away from each other any further, that is, at this time, both the first pressing end 1222 and the second pressing end 1322 move to the farthest distance. Among them, the relative distance between the abutting protrusion 173 and the head of the second limit screw 171 needs to be determined according to the specific working conditions and the distance requirement.

[0076] Specifically, as Figure 3 shown, the second limit components 17 on the two guide blocks 121 are also arranged diagonally on the cover plate 11. That is to say, the first limit components 16 and the second limit components 17 are alternately arranged at the four corners of the square structure formed by the two guide blocks 121 in sequence. Thus, the mutual separation of the two guide blocks 121 can also be restricted from two diagonal positions, so that the further separation of the two guide blocks 121 can be restricted more smoothly, and the limiting effect on the guide block 121 is better.

[0077] Furthermore, as Figure 1 and Figure 4 shown, a plurality of weight-reducing holes 112 are arranged on the cover plate 11, the two guide blocks 121 and the two fixing seats 131. At the same time, a plurality of weight-reducing grooves 124 are arranged on the two first jaws 122, the two second jaws 132, the two guide blocks 121 and the two fixing seats 131. Thus, the weight of the main fixture 1 can be made lighter, which is beneficial to the light weight of the entire circuit board mounting device.

[0078] Specifically, the cover plate 11 is made of anti-static transparent acrylic material. On the one hand, it can make the weight of the cover plate 11 lighter, so that the weight of the entire main fixture 1 is lighter; on the other hand, it can prevent the cover plate 11 from being knocked and scratched on the circuit board or the chassis, so as to better protect the circuit board and the chassis.

[0079] Furthermore, as Figure 1As shown in the figure, a handle 113 and a protective cover 111 are further provided on the cover plate 11; among them, the handle 113 can facilitate lifting the entire main fixture 1; the protective cover 111 is located on the top surfaces of the first clamping jaw 122, the second clamping jaw 132, the guiding block 121, and the fixing seat 131, so that the protective cover 111 can protect the structures exposed outside in the four clamping assemblies 10; among them, the protective cover 111 is made of aluminum alloy or other materials with relatively light texture, so that the weight of the protective cover 111 is relatively light, and thus the weight of the main fixture 1 can be lighter. In this embodiment, the weight of the entire main fixture 1 is 1.3 kg.

[0080] Specifically, as Figure 6 shown, the circuit board mounting device further includes a first limit seat 2, and the first limit seat 2 is used to place the circuit board before interference fit installation, so that the two first clamping jaws 122 and the two second clamping jaws 132 can accurately pick up the circuit board from the first limit seat 2 and move it into the annular groove, which is beneficial to the subsequent interference fit installation of the circuit board.

[0081] Furthermore, a first mounting hole is provided on the circuit board; as Figure 6 shown, the first limit seat 2 includes a first base 21 and four first limit blocks 22. The four first limit blocks 22 are arranged around the first base 21. A limit convex block 223 is provided on the top surface of each first limit block 22, and a limit post 221 is further provided on the top surface of one of the first limit blocks 22; when the circuit board needs to be mounted on the first limit seat 2, the circuit board is horizontally placed on the four first limit blocks 22, and at the same time, the limit post 221 is inserted into the first mounting hole, and the entire circuit board is limited inside each limit convex block 223, so that the circuit board can be accurately placed on the first limit seat 2, and the L-shaped notch on the circuit board is arranged towards the lower left in the second direction. At this time, the nameplate on the first base 21 is arranged towards the upper right in the second direction.

[0082] Specifically, as Figure 6 shown, a plurality of pressing clamps 224 are further provided on the first base 21. The pressing clamps 224 are used to press the circuit board on the four first limit blocks 22, so that the circuit board can be stably placed on the four first limit blocks 22; when the main fixture 1 needs to pick up the circuit board, the pressing clamps 224 can be directly pushed up, that is to say, the pressing clamps 224 will not interfere with the operation of the main fixture 1 picking up the circuit board. In this embodiment, the pressing clamps 224 can adopt the common quick clamp structure in the prior art.

[0083] Specifically, as Figure 6 and Figure 7As shown, a limit pin 114 and an avoidance card slot 115 are respectively arranged on the bottom end surface of the cover plate 11. A second mounting hole is also arranged on the circuit board, and a limit hole 222 is further arranged on the top end surface of each first limit block 22. When it is necessary to pick up the circuit board from the first limit seat 2 by using the main fixture 1, the limit pin 114 is made to pass through the second mounting hole and the limit hole 222 in sequence, and at the same time, the limit bump 223 can be clamped in the avoidance card slot 115, so as to complete the alignment of the main fixture 1 and the circuit board. At this time, the two first clamping jaws 122 and the two second clamping jaws 132 are used to pick up the circuit board from the four first limit blocks 22.

[0084] Further, as Figure 8 shown, the circuit board mounting device further includes a second limit seat 3. The second limit seat 3 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 installation of the circuit board in the annular groove.

[0085] Specifically, as Figure 8 shown, the second limit seat 3 includes a second base 31 and four second limit blocks 32. The four second limit blocks 32 are arranged around the second base 31. A plurality of second bumps 33 are arranged on the second base 31, and the plurality of second bumps 33 are located inside the four second limit blocks 32. At the same time, a plurality of card holes are arranged on the bottom end surface of the chassis, and the second bumps 33 can be clamped into the card holes to limit the chassis inside the four second limit blocks 32, and make the limit protrusion on the chassis face upward along the second direction, so as to ensure that the circuit board picked up by the two first clamping jaws 122 and the two second clamping jaws 132 from the first limit seat 2 can be accurately installed in the annular groove inside the chassis, and there will be no position deviation between the circuit board and the annular groove.

[0086] Further, as Figure 7 shown, mounting card slots 117 are respectively arranged on the two opposite sides of the cover plate 11. A first bump is arranged on the chassis, and the first bump can be clamped in the mounting card slot 117 to set the cover plate 11 on the chassis more accurately, thereby facilitating the accurate installation of the circuit board. And the limit pin 114 passing through the second mounting hole on the cover plate 11 is inserted into the third mounting hole inside the chassis, and the guiding screws are sequentially inserted into the guiding sleeve 116 on the cover plate 11, the circuit board and the chassis, so as to make the cover plate 11 be set on the chassis more stably.

[0087] The specific working process of the circuit board mounting device in this embodiment is as follows:

[0088] Before installing the circuit board:

[0089] First, horizontally place the circuit board on the four first limit blocks 22 on the first base 21. At the same time, insert the limit posts 221 on the first limit blocks 22 into the first mounting holes of the circuit board, and limit the entire circuit board inside the respective limit bumps 223 on the first limit blocks 22. Set the L-shaped notch on the circuit board to face left and downward along the second direction. At this time, the nameplate on the first base 21 faces right and upward along the second direction, so that the circuit board can be accurately placed on the first limit seat 2.

[0090] At the same time, snap the respective second bumps 33 on the second base 31 into the respective card holes on the bottom end face of the chassis, and limit the chassis inside the four second limit blocks 32. Set the limit protrusion on the chassis to face upward along the second direction, so that the chassis can be accurately placed on the second limit seat 3.

[0091] When installing the circuit board:

[0092] First, move the entire main fixture 1 above the first limit seat 2, and then sequentially pass the limit pins 114 on the cover plate 11 through the second mounting holes on the circuit board and the limit holes 222 on the first limit blocks 22. At the same time, the limit bumps 223 on the first limit blocks 22 can be snapped into the avoidance card slots 115 on the cover plate 11, so that the main fixture 1 can be accurately placed on the first limit seat 2; among them, during the entire process of installing the circuit board, the entire main fixture 1 will not rotate, and the main fixture 1 always works in the Figure 1 position and attitude, that is, the main fixture 1, the first limit seat 2, and the second limit seat 3 are all located in the Figure 1 coordinate system formed by arrow A and arrow B.

[0093] After that, press down the clip body 141 of the quick clip 14 to make the quick clip 14 in a pressed state. At this time, the clip body 141 and the mating block 142 of the quick clip 14 can be tightly buckled and brought closer together, so that the two guide blocks 121 can be brought 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 ends 1222 of the two first jaws 122 move to press the two sides of the circuit board along the first direction. At this time, the first elastic member 123 is compressed.

[0094] Meanwhile, the guiding block 121 can drive the fixed seat 131 to move in the second direction through the ball bearing 191, so that the two second jaws 132 approach each other in the second direction, enabling the second pressing ends 1322 of the two second jaws 132 to move to press against two sides of the circuit board in the second direction. At this time, the second elastic member 133 is compressed; thus, the two first jaws 122 and the two second jaws 132 can clamp the circuit board simultaneously and squeeze the circuit board towards the center of the circuit board. Since the circuit board will be slightly deformed under the clamping and squeezing action of the first jaws 122 and the second jaws 132 at this time, that is, the size of the circuit board will become slightly smaller; then move the entire main fixture 1 from the first limit seat 2 above the chassis. At this time, the main fixture 1 holds the circuit board, and the circuit board is located at the bottom end surface of the cover plate 11.

[0095] Then, engage the first convex block on the chassis with the installation slot 117 on the cover plate 11 to set the cover plate 11 on the chassis more accurately, which is conducive to the accurate installation of the circuit board; and insert the limit pin 114 passing through the second installation hole on the cover plate 11 into the third installation hole in the chassis, and insert the guiding screw into the guiding sleeve 116 on the cover plate 11, the circuit board, and the chassis in sequence, so as to be able to set the cover plate 11 on the chassis more stably; meanwhile, make the circuit board on the main fixture 1 located in the annular groove in the chassis.

[0096] Finally, push up the clip body 141 of the quick clip 14 to eliminate the fastening force between the clip body 141 and the mating block 142, that is to say, there is no mutual tension between the two guiding blocks 121 at this time, and at the same time, the acting force of the guiding block 121 on the fixed seat 131 is eliminated. At this time, the first elastic member 123 can drive the guiding block 121 to move away from the support block 15 in the first direction, that is, the two guiding blocks 121 move away from each other, so that the first pressing end 1222 of the first jaw 122 disengages 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 jaw 132 disengages from the circuit board. At this time, since the circuit board is not subjected to the squeezing force of the first jaw 122 and the second jaw 132, the circuit board can recover its initial size, so that the circuit board can directly abut against the inner wall of the annular groove, and then realize the automatic interference installation of the circuit board in the annular groove in the chassis; then take out the main fixture 1 from the chassis.

[0097] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A circuit board mounting device for press - fitting a circuit board into an annular groove inside a chassis, the circuit board mounting device comprising a main fixture (1), characterized in that, The main treatment device (1) includes: A cover plate (11); Four interconnected clamping components (10), wherein two of the clamping components (10) are arranged at intervals along a first direction on the cover plate (11), and the other two clamping components (10) are arranged at intervals along a second direction on the cover plate (11). The four clamping components (10) can approach each other to simultaneously and respectively abut against the four sides of the circuit board, and can squeeze the sides of the circuit board inward towards the center of the circuit board. The first direction is perpendicular to the second direction; A quick clamp (14) is connected to two of the clamping components (10) that are parallel to it. The quick clamp (14) is used to provide a pulling force to the clamping components (10) to drive the four clamping components (10) to approach each other, or to release the pulling force on the clamping components (10); A support block (15) is arranged at the center of the four clamping components (10), and the support block (15) is fixedly arranged on the cover plate (11); the four clamping components (10) include two relatively arranged first clamping components (12), and the two first clamping components (12) can respectively clamp two sides of the circuit board along the first direction. The first clamping component (12) includes: A guide block (121), the guide block (121) is slidably arranged on the cover plate (11) along the first direction, and both ends of the quick clamp (14) are respectively fixedly arranged on the guide blocks (121) of the two first clamping components (12); A first clamping jaw (122), a first support end (1221) of the first clamping jaw (122) is arranged on the guide block (121), a first pressing end (1222) of the first clamping jaw (122) passes through the cover plate (11) and extends downward, and the first pressing end (1222) can move along the first direction within the cover plate (11); A first elastic member (123), one end of the first elastic member (123) is fixedly connected to the support block (15), and the other end of the first elastic member (123) is fixedly connected to the end of the guide block (121) where the first clamping jaw (122) is not arranged.

2. The circuit board mounting device according to claim 1, wherein, The setting position of the first support end (1221) on the guide block (121) is adjustable. A rectangular hole extending along the first direction is arranged on the guide block (121). An adjusting convex block is arranged on the bottom end surface of the first support end (1221). An adjusting screw (125) is arranged on the guide block (121). The end of the adjusting screw (125) passes through the guide block (121) and abuts against the adjusting convex block. Rotating the adjusting screw (125) can drive the adjusting convex block to move within the rectangular hole.

3. The circuit board mounting device according to claim 1, wherein, The quick clamp (14) includes: The mating block (142) and the clamping body (141), the mating block (142) and the clamping body (141) are respectively fixedly arranged on the two guiding blocks (121), the mating block (142) is connected to the clamping body (141), and the mating block (142) and the clamping body (141) can be tightened or loosened relative to each other.

4. The circuit board mounting device according to claim 1, characterized in that, The four clamping assemblies (10) further include two second clamping assemblies (13) arranged oppositely, and the two second clamping assemblies (13) can respectively clamp the other two sides of the circuit board along the second direction. The second clamping assembly (13) includes: A fixed seat (131) is arranged on the cover plate (11), the fixed seat (131) is movably connected to the guiding block (121), and the guiding block (121) can drive the fixed seat (131) to slide along the second direction on the cover plate (11). The two guiding blocks (121) and the two fixed seats (131) surround the outer periphery of the support block (15); A second clamping jaw (132), the second supporting end (1321) of the second clamping jaw (132) is arranged on the fixed seat (131), the second pressing end (1322) of the second clamping jaw (132) passes through the cover plate (11) and extends downward, the setting position of the second supporting end (1321) on the fixed seat (131) is adjustable, and the second pressing end (1322) can move along the second direction within the cover plate (11); A second elastic member (133), 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 one end of the fixed seat (131) where the second clamping jaw (132) is not arranged.

5. The circuit board mounting device according to claim 4, characterized in that, Both of the two first clamping jaws (122) have one first pressing end (1222), one of the two second clamping jaws (132) has two second pressing ends (1322), and the other second clamping jaw (132) has one second pressing end (1322).

6. The circuit board mounting device according to any one of claims 1-5, characterized in that, The main fixture (1) further includes a first limiting assembly (16), and the first limiting assembly (16) is used to limit the moving distance of the guiding block (121) approaching the support block (15) in the first direction. The first limiting assembly (16) includes: A first limiting screw (161) extending along the first direction; A first top block (162) is fixedly arranged on the cover plate (11), a circular ring (163) protrudes from the first top block (162), the end of the first limiting screw (161) passes through the circular ring (163) and is connected to the guiding block (121), the first limiting screw (161) can move along the first direction within the circular ring (163), and the inner diameter of the circular ring (163) is smaller than the outer diameter of the head of the first limiting screw (161).

7. The circuit board mounting device according to claim 6, characterized in that, The main treatment device (1) further includes a second limiting component (17). The second limiting component (17) is used to limit the moving distance of the guiding block (121) away from the supporting block (15) in the first direction. The second limiting component (17) includes: A second limiting screw (171) extending along the first direction. The second limiting screw (171) and the first limiting screw (161) are oppositely arranged on the guiding block (121). A second top block (172) fixedly arranged on the cover plate (11). An abutting protrusion (173) is arranged on the second top block (172). The second limiting screw (171) is located between the guiding block (121) and the abutting protrusion (173), and the second limiting screw (171) can abut against the abutting protrusion (173).

8. The circuit board mounting device according to any one of claims 1-5, characterized in that, A limiting pin (114) and an avoidance card slot (115) are respectively arranged on the bottom end surface of the cover plate (11). A first mounting hole and a second mounting hole are arranged on the circuit board. The circuit board mounting device further includes: A first limiting seat (2) for placing the circuit board before interference fit 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). A limiting hole (222) and a limiting protrusion (223) are arranged on the top end surface of each first limiting block (22). A limiting post (221) is further arranged on the top end surface of one of the first limiting blocks (22). The limiting post (221) can be inserted into the first mounting hole. The limiting pin (114) can sequentially pass through the second mounting hole and the limiting hole (222), and the limiting protrusion (223) can be clamped into the avoidance card slot (115).

9. The circuit board mounting device according to any one of claims 1-5, characterized in that, Mounting card slots (117) are respectively arranged on two opposite sides of the cover plate (11). A first protrusion is arranged on the chassis. The first protrusion can be clamped into the mounting card slots (117). The circuit board mounting device further includes: A second limiting seat (3) for placing 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). A plurality of second protrusions (33) are arranged on the second base (31). The plurality of second protrusions (33) are located inside the four second limiting blocks (32). A plurality of card holes are arranged on the bottom end surface of the chassis. The second protrusions (33) can be clamped into the card holes.

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