Circuit board processing jig

Abstract

The utility model relates to the technical field of intelligent manufacturing, and discloses a circuit board processing tool comprising a frame body comprising a first side and a second side which are oppositely arranged; the limiting strip comprises a connecting plate and a clamping plate which are stacked in the thickness direction of the frame body, the two ends of the connecting plate are connected with the first edge and the second edge respectively, and the clamping plate is detachably arranged on the connecting plate; a limiting opening is formed in the space between at least two adjacent limiting strips. In the using process of the circuit board processing jig, when the circuit board needs to be taken down from the circuit board processing jig, an operator can separate the clamping plate from the connecting plate and then take out the circuit board, and due to the fact that the clamping plate and the connecting plate are detachably connected, the risk that the clamping plate and the circuit board interfere with each other does not exist, and the circuit board can be conveniently taken out. The two sides of the limiting strip can be used for limiting the circuit board at the same time, the defect that one side of the limiting plate can only be in a vacant state is overcome, and the space on the circuit board processing jig can be fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent manufacturing, and in particular to a circuit board processing jig. Background Art

[0002] Circuit boards and other electronic products need to be sprayed with conformal coating to protect the circuits and related equipment from environmental corrosion. In related technologies, one side of the circuit board is sprayed first, and then it needs to be left to dry after spraying. After the surface is dried, the circuit board is turned over and the other side is sprayed. After the spraying is completed, it is left to dry again. However, there are problems in this process. Utility Model Content

[0003] In view of this, the utility model provides a circuit board processing jig to solve the problems existing in the circuit board painting process in the related technology, which can improve the production efficiency of the circuit board processing jig, avoid damage to the coating of the circuit board, and make full use of the space on the circuit board processing jig.

[0004] In a first aspect, the utility model provides a circuit board processing jig, comprising:

[0005] The frame includes a first side and a second side that are arranged opposite to each other;

[0006] The limiting strip includes a connecting plate and a clamping plate stacked along the thickness direction of the frame, the two ends of the connecting plate are respectively connected to the first side and the second side, and the clamping plate is detachably arranged on the connecting plate;

[0007] The space between at least two adjacent limiting strips forms a limiting opening.

[0008] Beneficial effects:

[0009] During use of the circuit board processing jig of the utility model, when it is necessary to clamp the circuit board on the circuit board processing jig, the operator can first remove the clamping plate from the connecting plate, and then place the circuit board in the limiting opening, and make the two ends of the circuit board overlap with a connecting plate respectively, and then detachably connect the clamping plate and the connecting plate to limit the circuit board on the processing jig.

[0010] When the spraying and drying operations on one side of the circuit board are completed, the operator can directly flip the circuit board processing jig to use the circuit board processing jig to flip multiple circuit boards at the same time. During the flipping process, the operator does not need to directly touch the circuit board, so there is no problem of coating damage caused by touching. This allows the circuit board to be flipped after the first side of the circuit board is sprayed. It only needs to be initially cured in a curing furnace to ensure that the coating on the surface of the circuit board does not drip during the flipping process. There is no need to wait for the first side to be completely cured, thereby saving the time required to wait for the first side of the circuit board to be cured and effectively shortening the spraying time of the circuit board.

[0011] In the related art, the circuit board processing jig includes a jig frame, which is a rectangular frame structure. Two cantilevers are arranged in the jig frame, and the two cantilevers are parallel to each other, and two fixed areas with adjustable areas are formed in the jig frame. The frame edges of the jig frame corresponding to the fixed area and the cantilevers are rotatably connected to rockers, that is, there are four rockers, two of which are rotatably connected to the cantilevers, and the other two are rotatably connected to the two frame edges of the jig frame parallel to the cantilevers. The frame edges of the jig frame connected to the rockers and the side edges of the cantilevers corresponding to the fixed areas are provided with clamping grooves for placing and clamping the edges outside the electrical boundaries of the circuit board, so as to facilitate the coating of the circuit board with three-proof paint. However, when removing the circuit board, this circuit board processing jig needs to first rotate the rocker arm to separate the rocker arm from the circuit board, and then remove the circuit board from the cantilever. This means that the circuit board can only be located on the rear side of the rotation direction of the rocker arm. If the rocker arm rotates toward the circuit board, the bottom of the rocker arm will be at risk of interfering with the electronic components on the circuit board, resulting in only one side of the cantilever being able to be used to limit the circuit board, and the other side can only be in an empty state.

[0012] During use of the circuit board processing jig of the embodiment of the present application, when the circuit board needs to be removed from the circuit board processing jig, the operator can separate the clamping plate from the connecting plate and then take out the circuit board. Since the clamping plate and the connecting plate are detachably connected, there is no risk of the clamping plate interfering with the circuit board, and both sides of the limit strip can be used to limit the circuit board at the same time, overcoming the defect in the related art that one side of the limit plate can only be in a vacant state, and can make full use of the space on the circuit board processing jig.

[0013] In an optional embodiment, the circuit board processing jig includes a working state, and in the working state:

[0014] The connecting plate and the clamping plate of one limiting strip clamp one end of the circuit board, and the connecting plate and the clamping plate of another adjacent limiting strip clamp the other end of the circuit board, and at least part of the circuit board is exposed in the limiting opening.

[0015] Beneficial effect: Through such an arrangement, the connecting plate and the clamping plate can cooperate with each other and reliably constrain the circuit board on the circuit board processing jig. After the circuit board processing is completed, the operator can separate the clamping plate from the connecting plate, thereby removing the circuit board from the circuit board processing jig.

[0016] In an optional implementation, the limiting strip further includes:

[0017] A first groove formed on a side of the connecting plate facing the clamping plate;

[0018] A second groove is formed at a position of the clamping plate corresponding to the first groove;

[0019] A first magnetic member is disposed in one of the first groove and the second groove, and a second magnetic member or magnetic material is disposed in the other of the first groove and the second groove. The second magnetic member or magnetic material can be attracted to the first magnetic member.

[0020] Beneficial effect: Through such a configuration, the first magnetic component can be attracted to the second magnetic component or magnetic material, so that the connecting plate and the clamping plate can be detachably connected, and the disassembly and assembly process is simple and convenient, which helps to improve the user experience. At the same time, the first magnetic component can also play the role of adsorbing the circuit board, and the auxiliary limiting groove can limit the circuit board, so that the circuit board processing fixture can limit the circuit board more reliably.

[0021] In an optional embodiment, there are multiple first magnetic members, which are spaced apart along the length direction of the connecting plate; and / or,

[0022] There are multiple second magnetic elements, which are spaced apart along the length direction of the clamping plate.

[0023] Beneficial effect: Through such an arrangement, the connection between the connecting plate and the clamping plate can be ensured to be more stable, and multiple circuit boards that are limited along the length direction of the limit strip can be adsorbed by the first magnetic part, so that the circuit board processing fixture can limit the circuit board more reliably.

[0024] In an optional implementation, a limiting groove is formed between the connecting plate and the clamping plate, and the limiting groove is used to limit the end of the circuit board.

[0025] Beneficial effect: During use of the circuit board processing jig of the utility model, the edge of the circuit board is clamped in the limiting groove. Therefore, when spraying on either side of the circuit board, the three-proof paint will not flow along the overlap between the circuit board and the processing jig to the other side of the circuit board, thereby avoiding accumulation at the overlap of the circuit board and affecting the appearance quality of the circuit board.

[0026] In addition, during the spraying process, the circuit board needs to be painted on the first side of the circuit board first, and then the circuit board is turned over to spray paint on the second side of the circuit board. In the process of turning over the circuit board and spraying paint on the second side of the circuit board, the first side of the circuit board is set downward, and the two ends are overlapped with the jig respectively, and indentations are easy to appear at the overlap between the circuit board and the jig. The circuit board processing jig of the utility model can clamp both ends of the circuit board in the limit groove, so there is no coating on the edge of the circuit board clamped in the processing jig, so the process of setting the first side of the circuit board downward and waiting for curing will not cause indentations on the ends of the circuit board.

[0027] In an optional embodiment, a clamping protrusion is formed on one side of the connecting plate close to the clamping plate, the clamping protrusion extends along the length direction of the connecting plate, and the clamping plate, the clamping protrusion and the connecting plate are suitable for forming a limiting groove.

[0028] In an optional embodiment, sealing strips are respectively provided on the groove walls on both sides of the limiting groove, and the sealing strips extend from one end of the limiting groove to the other end of the limiting groove for interference fit with the end of the circuit board.

[0029] Beneficial effect: When the circuit board is clamped on the circuit board processing jig of the embodiment of the present application, the sealing strip can seal the gap between the limiting groove and the circuit board to prevent the three-proof paint from flowing to the edge of the circuit board through the gap between the limiting groove and the circuit board, causing indentations on the end of the circuit board.

[0030] In an optional embodiment, there are multiple limit bars, the extension directions of the multiple limit bars are consistent and parallel to each other, the limit bars at the edge of the frame are fixed on the frame, and the remaining limit bars are suitable for sliding along the length direction of the first side.

[0031] Beneficial effect: By driving the limiting strip to slide along the length direction of the first side, the width of the limiting opening can be adjusted so that the circuit board processing jig can limit circuit boards of different models, thereby expanding the application scope of the circuit board processing jig.

[0032] In an optional embodiment, the limiting bar includes a first limiting bar and a second limiting bar, the first limiting bar is fixedly arranged on the frame, and the second limiting bar is suitable for sliding along the length direction of the first side, and the frame further includes:

[0033] A slide groove is provided on the first side and the second side respectively, and the slide groove extends along the length direction of the first side or the second side respectively;

[0034] The locking structure is connected to the end of the second limiting strip. The locking structure has a locking state and an unlocking state. In the locking state, the locking structure is suitable for being locked and connected with the frame body. In the unlocking state, the locking structure is suitable for sliding along the slide groove.

[0035] Beneficial effect: Through such a setting, when it is necessary to limit the position of circuit boards of different sizes, the operator can switch the locking structure to the unlocked state to drive the second limit bar to move along the slide groove and move to a suitable position. After the second limit bar moves into place, the operator can switch the locking structure to the locked state to limit the second limit bar in a suitable position to prevent the second limit bar from moving again after clamping the circuit board, causing the circuit board to slip.

[0036] In an optional embodiment, the slide groove has a first groove section and a second groove section which are sequentially connected along the thickness direction of the frame body, the width of the first groove section is greater than that of the second groove section, and an abutment surface is formed between the first groove section and the second groove section;

[0037] The locking structure includes:

[0038] A first connecting block, which is disposed in the first groove section and is adapted to abut against the abutting surface;

[0039] A second connecting block is arranged on a side of the second slot section away from the first slot section and connected to an end of the second limiting strip;

[0040] A bolt passes through the second connecting block and is threadedly connected to the first connecting block.

[0041] Beneficial effect: The operator can adjust the distance between the first connection block and the second connection block by rotating the bolt, so that the locking structure switches between the locked state and the unlocked state. When the bolt is tightened, the distance between the first connection block and the second connection block can be shortened, so that the first connection block can be pressed against the abutment surface, and the locking structure switches to the locked state. When the bolt is loosened, the distance between the first connection block and the second connection block can be increased, the first connection block is separated from the abutment surface, and the operator can drive the locking structure to slide relative to the slide groove. In addition, the slide groove is configured to include a first groove section and a second groove section, and an abutment surface is formed between the first groove section and the second groove section, so that the first connection block can be placed in the slide groove and abut against the abutment surface without being exposed outside the slide groove, which helps to reduce the space required for the locking structure.

[0042] In an optional embodiment, the bolt is a hand-tightened bolt.

[0043] In an optional embodiment, the circuit board processing jig further includes:

[0044] The accommodating groove is arranged on the outside of the two limiting strips on the outside of the frame body. The accommodating groove extends along the length direction of the limiting strips and is used to accommodate the conveying track. The accommodating groove is formed on at least one side surface of the circuit board processing fixture.

[0045] Beneficial effects:

[0046] Through such an arrangement, the circuit board processing jig of the embodiment of the present application can be placed on the conveyor track, and transported by the conveyor track in sequence through equipment such as the three-proof paint coating machine, the inspection table and the curing furnace, thereby improving the degree of automation of circuit board processing.

[0047] Preferably, receiving grooves are formed on both side surfaces of the frame. By such arrangement, when the circuit board processing jig of the embodiment of the present application can be placed on the conveying track during use, the receiving groove on one side surface of the circuit board processing jig first cooperates with the conveying track, so as to carry the circuit board from the beginning to the end of the three-conformal paint spraying production line under the drive of the conveying track, so as to spray paint and cure the first surface of the circuit board. After the spraying and curing operation on one side surface of the circuit board is completed, the circuit board processing jig can be transported to the beginning of the three-conformal paint spraying production line again, and turned over manually or by a clamp, so that the receiving groove on the other side surface of the circuit board processing jig cooperates with the conveying track, and the second surface of the circuit board faces upward, and the circuit board processing jig can carry the circuit board from the beginning to the end of the three-conformal paint spraying production line under the drive of the conveying track to spray and cure the second side surface of the circuit board.

[0048] Therefore, when accommodating grooves are formed on both side surfaces of the circuit board processing jig, both side surfaces of the circuit board processing jig can cooperate with the conveying track. Therefore, after the paint spraying and curing operation on one side surface of the circuit board is completed, when the operator needs to spray paint and cure the other side surface of the circuit board, there is no need to remove the circuit board from the circuit board processing jig. Only the circuit board processing jig needs to be flipped over as a whole to spray paint and cure the second side surface of the circuit board. This not only simplifies the processing process, but also avoids the operator touching the circuit board during the process of removing the circuit board from the circuit board processing jig and turning it over, thereby damaging the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A three-dimensional diagram of a circuit board processing jig according to an embodiment of the utility model;

[0051] Figure 2 for Figure 1 An exploded view of the circuit board processing jig;

[0052] Figure 3A three-dimensional view of a circuit board processing jig according to an embodiment of the utility model from another angle;

[0053] Figure 4 for Figure 3 The cross-sectional view along line AA in FIG.

[0054] Figure 5 for Figure 4 A in the enlarged view;

[0055] Figure 6 for Figure 4 The enlarged view of point B in the figure;

[0056] Figure 7 for Figure 3 The cross-sectional view along line BB in FIG.

[0057] Figure 8 for Figure 7 The enlarged view of point C in the figure;

[0058] Fig. 9 A top view of a circuit board processing jig in use according to an embodiment of the utility model;

[0059] Fig.10 This is a three-dimensional diagram of a circuit board processing jig in use according to an embodiment of the utility model.

[0060] Fig.11 for Figure 3 Sectional view along the CC line;

[0061] Fig.12 for Fig.11 The enlarged view of D in the figure;

[0062] Fig.13 This is a three-dimensional diagram of a circuit board processing jig in a transportation state according to an embodiment of the utility model.

[0063] Description of reference numerals:

[0064] 1. frame; 101. first side; 102. second side; 104. slide groove; 1041. first groove section; 1042. second groove section; 1043. abutting surface; 105. receiving groove;

[0065] 2. Limiting strip; 201. Connecting plate; 2011. First groove; 2012. Clamping protrusion; 202. Clamping plate; 2021. Second groove; 203. Sealing strip; 2a. First limiting strip; 2b. Second limiting strip;

[0066] 3. Limiting groove;

[0067] 401, a first magnetic attraction member; 402, a second magnetic attraction member;

[0068] 5. Locking structure; 501. First connecting block; 502. Second connecting block; 503. Bolt; 504. Fastener;

[0069] 6. Circuit board;

[0070] 7. Limit opening;

[0071] 8. Docking station; 9. Conveyor track. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0073] In the related art, the circuit boards of electronic products need to be sprayed with conformal coating to protect the circuit boards and related equipment from environmental corrosion. After spraying the first side of the circuit board, the circuit board needs to be left to dry. The drying time needs to be determined according to the type of conformal coating, generally more than one hour, until the conformal coating is dry and the operator touches the board surface without damaging the coating. Then manually turn the circuit board over and spray the second side of the circuit board. Then keep the first side of the circuit board facing down and let it dry.

[0074] However, after the first side is sprayed, it takes a long time to dry to ensure that the coating will not be damaged when the operator touches the board surface, affecting the production rhythm of the circuit board. In addition, the operator manually turning the circuit board over can easily damage the coating and affect product quality.

[0075] According to an embodiment of the utility model, on the one hand, a circuit board processing jig is provided, including a frame 1 and a limit strip 2. A limit opening 7 is formed on the frame 1. The frame 1 includes a first side 101 and a second side 1021 arranged opposite to each other. The limit strip 2 includes a connecting plate 201 and a clamping plate 202 stacked along the thickness direction of the frame 1, and the two ends of the connecting plate 201 are respectively connected to the first side 101 and the second side 102, and the clamping plate 202 is detachably arranged on the connecting plate 201. The space between at least two adjacent limit strips 2 forms a limit opening 7.

[0076] During use of the circuit board processing jig of the utility model, when the circuit board 6 needs to be clamped on the circuit board processing jig, the operator can first remove the clamping plate 202 from the connecting plate 201, and then place the circuit board 6 in the limiting opening 7, and make the two ends of the circuit board 6 overlap with a connecting plate 201 respectively, and then detachably connect the clamping plate 202 and the connecting plate 201 to limit the circuit board 6 on the processing jig.

[0077] When the spraying and drying operations on one side of the circuit board 6 are completed, the operator can directly flip the circuit board processing jig to use the circuit board processing jig to flip multiple circuit boards 6 at the same time. During the flipping process, the operator does not need to directly touch the circuit board 6, so there is no problem of coating damage caused by touching. This allows the circuit board 6 to be flipped after the spraying of the first side is completed, only needing to be initially cured in a curing furnace to ensure that the coating on the surface of the circuit board 6 does not drip during the flipping process, without waiting for the first side to be completely cured, thereby saving the time required to wait for the first side of the circuit board 6 to be cured, and effectively shortening the spraying time of the circuit board 6.

[0078] In the related art, the circuit board processing jig includes a jig frame, which is a rectangular frame structure. Two cantilevers are arranged in the jig frame, and the two cantilevers are parallel to each other, and two fixed areas with adjustable areas are formed in the jig frame. The frame edge of the jig frame corresponding to the fixed area and the cantilever are rotatably connected to the rocker arm, that is, there are four rocker arms, two of which are rotatably connected to the cantilever, and the other two are rotatably connected to the two frame edges of the jig frame parallel to the cantilever. The frame edge of the jig frame connected to the rocker arm and the side edge of the cantilever corresponding to the fixed area are provided with clamping grooves for placing and clamping the edge outside the electrical boundary of the circuit board 6, so as to facilitate the coating of the circuit board 6 with three-proof paint. However, when removing the circuit board 6, this circuit board processing jig needs to first rotate the rocker arm to separate the rocker arm from the circuit board 6, and then remove the circuit board 6 from the cantilever. This makes the circuit board 6 only located on the rear side of the rotation direction of the rocker arm. If the rocker arm rotates toward the direction of the circuit board 6, the bottom of the rocker arm will be at risk of interfering with the electronic components on the circuit board 6, resulting in only one side of the cantilever being able to be used to limit the circuit board 6, and the other side can only be in an empty state.

[0079] During use of the circuit board processing jig of the embodiment of the present application, when the circuit board 6 needs to be removed from the circuit board processing jig, the operator can separate the clamping plate 202 from the connecting plate 201, and then take out the circuit board 6. Since the clamping plate 202 and the connecting plate 201 are detachably connected, there is no risk of interference between the clamping plate 202 and the circuit board 6. Both sides of the limit strip 2 can be used to limit the circuit board 6 at the same time, overcoming the defect in the related art that one side of the limit plate can only be in an empty state, and can make full use of the space on the circuit board processing jig.

[0080] Fig. 9 FIG. 1 is a top view of a circuit board processing jig in use according to an embodiment of the utility model. In one embodiment, Fig. 9 As shown, the circuit board processing jig includes a working state. In the working state: the connecting plate 201 and the clamping plate 202 of one limiting strip 2 clamp one end of the circuit board 6, and the connecting plate 201 and the clamping plate 202 of another adjacent limiting strip 2 clamp the other end of the circuit board 6, and at least part of the circuit board 6 is exposed in the limiting opening 7.

[0081] Through such an arrangement, the connecting plate 201 and the clamping plate 202 can cooperate with each other and reliably constrain the circuit board 6 on the circuit board processing jig. After the processing of the circuit board 6 is completed, the operator can separate the clamping plate 202 from the connecting plate 201, thereby removing the circuit board 6 from the circuit board processing jig.

[0082] Figure 4 for Figure 3 The cross-sectional view along line AA in FIG. Figure 5 for Figure 4 A in the enlarged view; Figure 6 for Figure 4 In one embodiment, Figure 4 , Figure 5 and Figure 6 As shown, the limiting strip 2 further includes a first groove 2011 and a second groove 2021. The first groove 2011 is formed on the side of the connecting plate 201 facing the clamping plate 202. The second groove 2021 is formed at a position of the clamping plate 202 corresponding to the first groove 2011. A first magnetic member 401 is disposed in one of the first groove 2011 and the second groove 2021, and a second magnetic member 402 or a magnetic material is disposed in the other of the first groove 2011 and the second groove 2021, and the second magnetic member 402 or the magnetic material can be attracted to the first magnetic member 401.

[0083] By such a configuration, the first magnetic member 401 can be attracted to the second magnetic member 402 or magnetic material, so that the connecting plate 201 and the clamping plate 202 can be detachably connected, and the disassembly and assembly process is simple and convenient, which helps to improve the user experience. At the same time, the first magnetic member 401 can also play the role of adsorbing the circuit board 6, and the auxiliary limiting groove 3 limits the circuit board 6, so that the circuit board processing fixture limits the circuit board 6 more reliably. Among them, the first magnetic member 401 and the second magnetic member 402 can be made of magnetic materials such as magnets or magnets, preferably strong magnetic rubidium magnets.

[0084] The magnetic material may be made of a material such as iron, cobalt, nickel, etc. that can be attracted in a magnetic field.

[0085] As another convertible implementation, the connecting plate 201 and the clamping plate 202 are also selected to be detachably connected by means of snap connection, riveting or threaded connection.

[0086] Figure 2 for Figure 1 The exploded view of the circuit board processing jig, in one embodiment, is as follows Figure 2 As shown, there are multiple first magnetic members 401, which are spaced apart along the length direction of the connecting plate 201. There are multiple second magnetic members 402, which are spaced apart along the length direction of the clamping plate 202. By such a configuration, it is possible to ensure that the connection between the connecting plate 201 and the clamping plate 202 is more stable, and multiple circuit boards 6 limited along the length direction of the limiting strip 2 can all be attracted by the first magnetic member, so that the circuit board processing jig can limit the circuit board 6 more reliably.

[0087] Figure 1 This is a three-dimensional diagram of a circuit board processing fixture according to an embodiment of the utility model. Figure 3 This is a three-dimensional view of a circuit board processing fixture according to an embodiment of the utility model from another angle. Fig.11 for Figure 3 In a cross-sectional view along the CC line, in one embodiment, as Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig.11 As shown, a limiting groove 3 is formed between the connecting plate 201 and the clamping plate 202 , and the limiting groove 3 is used to limit the end of the circuit board 6 .

[0088] When spraying the second side of the circuit board, the conformal coating may easily flow from the overlap gap between the circuit board and the jig or track to the first side of the circuit board, causing paint layer stacking and affecting the appearance quality of the circuit board. In addition, when the circuit board is dried as a whole, the first side of the circuit board faces downward, which may easily cause indentations.

[0089] Fig.10 FIG. 1 is a three-dimensional diagram of a circuit board processing jig in use according to an embodiment of the present invention. During use, the circuit board processing jig of the present invention is Fig.10 As shown, the edge of the circuit board 6 is clamped in the limiting groove 3. Therefore, when spraying any side of the circuit board 6, the three-proof paint will not flow along the overlap between the circuit board 6 and the processing fixture to the other side of the circuit board 6, thereby avoiding accumulation at the overlap of the circuit board 6 and affecting the appearance quality of the circuit board 6.

[0090] In addition, during the spraying process, the circuit board 6 needs to be painted on the first side of the circuit board 6 first, and then the circuit board 6 is turned over to spray paint on the second side of the circuit board 6. In the process of turning over the circuit board 6 and spraying paint on the second side of the circuit board 6, the first side of the circuit board 6 is set downward, and the two ends are overlapped with the jig, and indentations are easy to appear at the overlap between the circuit board 6 and the jig. The circuit board processing jig of the utility model can clamp both ends of the circuit board 6 in the limit groove 3, so there is no coating on the edge of the circuit board 6 clamped in the processing jig, so the process of setting the first side of the circuit board 6 downward to wait for curing will not cause indentations on the ends of the circuit board 6.

[0091] In one embodiment, Figure 6 for Figure 4 The enlarged view of point B in Figure 6 As shown, a clamping protrusion 2012 is formed on one side of the connecting plate 201 close to the clamping plate 202. The clamping protrusion 2012 extends along the length direction of the connecting plate 201, and the clamping plate 202, the clamping protrusion 2012 and the connecting plate 201 are suitable for surrounding the limiting groove 3.

[0092] Preferably, if Fig.12 As shown, sealing strips 203 are respectively provided on the groove walls on both sides opposite to each other of the limiting groove 3, and the sealing strips 203 extend from one end of the limiting groove 3 to the other end of the limiting groove 3, and are used for interference fit with the end of the circuit board 6. Therefore, when the circuit board 6 is clamped on the circuit board processing jig of the embodiment of the present application, the sealing strips 203 can seal the gap between the limiting groove 3 and the circuit board 6, so as to prevent the conformal coating from flowing to the edge of the circuit board 6 through the gap between the limiting groove 3 and the circuit board 6, causing an indentation on the end of the circuit board 6.

[0093] As a convertible embodiment, a clamping protrusion 2012 is formed on one side of the clamping plate 202 close to the connecting plate 201 , and the clamping protrusion 2012 extends along the length direction of the clamping plate 202 . The clamping plate 202 , the clamping protrusion 2012 and the connecting plate 201 are suitable for forming a limiting groove 3 .

[0094] In one embodiment, there are multiple limit bars 2, and the extension directions of the multiple limit bars 2 are parallel to each other. The limit bars 2 at the edge of the frame 1 are fixedly arranged on the frame 1, and the remaining limit bars 2 are slidably arranged on the frame 1 and are suitable for sliding along the length direction of the first side 101. By driving the limit bars 2 to slide along the length direction of the first side 101, the width of the limit opening 7 can be adjusted, so that the circuit board processing jig can limit circuit boards 6 of different models, thereby expanding the application range of the circuit board processing jig.

[0095] Preferably, in this embodiment, there are four limit bars 2, which are arranged parallel to each other, and the two middle limit bars 2 are suitable for sliding along the length direction of the first side 101. The two ends of the limit bars 2 on both sides are fixedly connected to the first side 101 and the second side 102 of the frame 1 respectively.

[0096] In one embodiment, Figure 1 and Figure 3 As shown, the limiting strip 2 includes a first limiting strip 2a and a second limiting strip 2b. The first limiting strip 2a2 is fixedly arranged on the frame 1, and the second limiting strip 2b is suitable for sliding along the length direction of the first edge 101. The frame 1 also includes a slide groove 104 and a locking structure 5 (the locking structure 5 is detailed in Figure 3 and Figure 8 ). A slide groove 104 is provided on the first side 101 and the second side 102, respectively, and the slide groove 104 extends along the length direction of the first side 101 or the second side 102. The locking structure 5 is connected to the end of the second limiting strip 2b, and the locking structure 5 has a locked state and an unlocked state. In the locked state, the locking structure 5 is suitable for being locked and connected with the frame 1, and in the unlocked state, the locking structure 5 is suitable for sliding along the slide groove 104.

[0097] By such arrangement, when it is necessary to limit the position of the circuit boards 6 of different sizes, the operator can switch the locking structure 5 to the unlocked state to drive the second limiting strip 2b to move along the slide groove 104 and move to a suitable position. After the second limiting strip 2b is moved into position, the operator can switch the locking structure 5 to the locked state to limit the second limiting strip 2b in a suitable position to prevent the second limiting strip 2b from moving again after clamping the circuit board 6, causing the circuit board 6 to slip.

[0098] In one embodiment, Figure 7 and Figure 8 As shown, the slide groove 104 has a first groove section 1041 and a second groove section 1042 sequentially connected along the thickness direction of the frame 1. The width of the first groove section 1041 is greater than that of the second groove section 1042, and an abutting surface 1043 is formed between the first groove section 1041 and the second groove section 1042.

[0099] like Figure 8 As shown, the locking structure 5 includes a first connecting block 501, a second connecting block 502 and a bolt 503. The first connecting block 501 is arranged in the first slot section 1041 (see Figure 8 and Fig.10 ) and is suitable for abutting against the abutment surface 1043 (see Figure 8 The second connection block 502 is disposed on a side of the second slot section 1042 away from the first slot section 1041 and connected to the end of the second limiting strip 2b. The bolt 503 passes through the second connection block 502 and is threadedly connected to the first connection block 501.

[0100] The operator can adjust the distance between the first connection block 501 and the second connection block 502 by rotating the bolt 503, so that the locking structure 5 switches between the locked state and the unlocked state. When the bolt 503 is tightened, the distance between the first connection block 501 and the second connection block 502 can be shortened, so that the first connection block 501 can be pressed against the abutment surface 1043, and the locking structure 5 switches to the locked state. When the bolt 503 is loosened, the distance between the first connection block 501 and the second connection block 502 can be increased, the first connection block 501 is separated from the abutment surface 1043, and the operator can drive the locking structure 5 to slide relative to the slide groove 104. In addition, the slide groove 104 is configured to include a first groove section 1041 and a second groove section 1042, and a contact surface 1043 is formed between the first groove section 1041 and the second groove section 1042, so that the first connecting block 501 can be placed into the slide groove 104 and abut against the abutment surface 1043 without being exposed outside the slide groove 104, which helps to reduce the space required to be occupied by the locking structure 5.

[0101] Preferably, the bolt 503 is a hand-tightened bolt 503, which can facilitate the operator to control the locking structure 5 to switch between the locked state and the unlocked state.

[0102] The second limiting strip 2b may be connected to the locking structure 5 in an integral manner or may be detachably connected to the locking structure 5. For example, the second limiting strip 2b may be detachably connected to the second connecting block 502 of the locking structure 5 by riveting, clamping or threading. Figure 8 As shown, the second limiting strip 2 b is detachably connected to the locking structure 5 via a fastener 504 .

[0103] Fig.13 This is a three-dimensional diagram of a circuit board processing fixture in a transport state according to an embodiment of the utility model. In the figure, the conveying track 9 is located on the docking platform 8. In one embodiment, as shown in FIG. Fig.13 As shown, the circuit board processing jig further includes a receiving groove 105 . The receiving groove 105 is arranged outside the two limit bars 2 outside the frame 1 , and the receiving groove 105 extends along the length direction of the limit bars 2 to receive the conveying track 9 .

[0104] Through such an arrangement, the circuit board processing jig of the embodiment of the present application can be placed on the conveying track 9, and under the transportation of the conveying track 9, it passes through the equipment such as the three-proof paint coating machine, the inspection table and the curing furnace in sequence, which can improve the degree of automation of the circuit board 6 processing.

[0105] Preferably, if Figure 4 and Figure 5As shown, the receiving grooves 105 are respectively formed on the two side surfaces of the frame 1. Through such a configuration, when the circuit board processing jig of the embodiment of the present application can be placed on the conveying track during use, the receiving groove 105 on one side surface of the circuit board processing jig first cooperates with the conveying track, so as to carry the circuit board from the beginning to the end of the three-conformal paint spraying production line under the drive of the conveying track, so as to spray paint and cure the first surface of the circuit board. After the spraying and curing operation on one side surface of the circuit board is completed, the circuit board processing jig can be transported to the beginning of the three-conformal paint spraying production line again, and turned over by manual or clamping, so that the receiving groove on the other side surface of the circuit board processing jig cooperates with the conveying track, and the second surface of the circuit board faces upward, and the circuit board processing jig can carry the circuit board from the beginning to the end of the three-conformal paint spraying production line under the drive of the conveying track to spray and cure the second side surface of the circuit board.

[0106] Therefore, when accommodating grooves are formed on both side surfaces of the circuit board processing jig, both side surfaces of the circuit board processing jig can cooperate with the conveying track. Therefore, after the paint spraying and curing operation on one side surface of the circuit board is completed, when the operator needs to spray paint and cure the other side surface of the circuit board, there is no need to remove the circuit board from the circuit board processing jig. Only the circuit board processing jig needs to be flipped over as a whole to spray paint and cure the second side surface of the circuit board. This not only simplifies the processing process, but also avoids the operator touching the circuit board during the process of removing the circuit board from the circuit board processing jig and turning it over, thereby damaging the coating.

[0107] In summary, the circuit board processing jig of the present invention can solve the defect that only one side of the cantilever of the circuit board processing jig in the related art can be used to limit the circuit board 6, and the other side can only be in an empty state, and can make full use of the space on the circuit board processing jig.

[0108] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A circuit board processing jig, characterized in that: include: A frame (1) comprising a first side (101) and a second side (102) arranged opposite to each other; a limit strip (2), the limit strip (2) comprising a connecting plate (201) and a clamping plate (202) stacked along the thickness direction of the frame (1), the two ends of the connecting plate (201) being respectively connected to the first edge (101) and the second edge (102), and the clamping plate (202) being detachably arranged on the connecting plate (201); The space between at least two adjacent limiting strips (2) forms a limiting opening (7).

2. The circuit board processing jig according to claim 1, characterized in that: The circuit board processing jig includes a working state, and in the working state: The connecting plate (201) and the clamping plate (202) of one of the limiting strips (2) clamp one end of the circuit board (6), and the connecting plate (201) and the clamping plate (202) of another adjacent limiting strip (2) clamp the other end of the circuit board (6), so that at least part of the circuit board (6) is exposed in the limiting opening (7).

3. The circuit board processing jig according to claim 1, characterized in that: The limiting strip (2) further comprises: A first groove (2011) formed on a side of the connecting plate (201) facing the clamping plate (202); A second groove (2021) formed at a position of the clamping plate (202) corresponding to the first groove (2011); A first magnetic member (401) is disposed in one of the first groove (2011) and the second groove (2021), and a second magnetic member (402) or a magnetic material is disposed in the other of the first groove (2011) and the second groove (2021), and the second magnetic member (402) or the magnetic material can be attracted to the first magnetic member (401).

4. The circuit board processing jig according to claim 3, characterized in that: The number of the first magnetic attraction members (401) is plural and they are arranged at intervals along the length direction of the connecting plate (201); and / or, There are multiple second magnetic attracting members (402), which are arranged at intervals along the length direction of the clamping plate (202).

5. The circuit board processing jig according to claim 2, characterized in that: A limiting groove (3) is formed between the connecting plate (201) and the clamping plate (202), and the limiting groove (3) is used to limit the end of the circuit board (6).

6. The circuit board processing jig according to claim 5, characterized in that: A clamping protrusion (2012) is formed on one side of the connecting plate (201) close to the clamping plate (202), and the clamping protrusion (2012) extends along the length direction of the connecting plate (201). The clamping plate (202), the clamping protrusion (2012) and the connecting plate (201) are suitable for enclosing the limiting groove (3).

7. The circuit board processing jig according to claim 5, characterized in that: Sealing strips (203) are respectively provided on the groove walls on both sides of the limiting groove (3), and the sealing strip (203) extends from one end of the limiting groove (3) to the other end of the limiting groove (3) and is used for interference fit with the end of the circuit board (6).

8. The circuit board processing jig according to any one of claims 1 to 6, characterized in that: There are a plurality of limit strips (2), and the extension directions of the plurality of limit strips (2) are consistent and parallel to each other. The limit strips (2) at the edge of the frame (1) are fixedly arranged on the frame (1), and the remaining limit strips (2) are suitable for sliding along the length direction of the first edge (101).

9. The circuit board processing jig according to claim 8, characterized in that: The limiting strip (2) comprises a first limiting strip (2a) and a second limiting strip (2b), wherein the first limiting strip (2a) is fixedly arranged on the frame (1), and the second limiting strip (2b) is suitable for sliding along the length direction of the first edge (101), and the frame (1) further comprises: A slide groove (104), wherein the first side (101) and the second side (102) are respectively provided with the slide groove (104), and the slide groove (104) extends along the length direction of the first side (101) or the second side (102); A locking structure (5) is connected to the end of the second limiting strip (2b), and the locking structure (5) has a locked state and an unlocked state. In the locked state, the locking structure (5) is suitable for being locked and connected with the frame (1), and in the unlocked state, the locking structure (5) is suitable for sliding along the slide groove (104).

10. The circuit board processing jig according to claim 9, characterized in that: The slide groove (104) comprises a first groove section (1041) and a second groove section (1042) which are sequentially connected along the thickness direction of the frame body (1); the width of the first groove section (1041) is greater than that of the second groove section (1042); and a contact surface (1043) is formed between the first groove section (1041) and the second groove section (1042); The locking structure (5) comprises: A first connecting block (501), which is arranged in the first groove section (1041) and is suitable for abutting against the abutting surface (1043); a second connecting block (502), which is arranged on a side of the second slot section (1042) away from the first slot section (1041) and is connected to an end of the second limiting strip (2b); A bolt (503) passes through the second connection block (502) and is threadedly connected to the first connection block (501).

11. The circuit board processing jig according to claim 10, characterized in that: The bolt (503) is a hand-tightened bolt (503).

12. The circuit board processing jig according to any one of claims 1 to 6, characterized in that: Also includes: A receiving groove (105) is arranged on the outer sides of the two limiting strips (2) on the outer sides of the frame (1); the receiving groove (105) extends along the length direction of the limiting strips (2) and is used to receive a conveying track (9); the receiving groove (105) is formed on at least one side surface of the circuit board processing jig.

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