Loading jig for circuit board

Abstract

The utility model is suitable for the technical field of circuit board manufacturing, and provides a loading jig for a circuit board, the loading jig is used for loading the circuit board to be welded, and the circuit board comprises a circuit board body, welding flux arranged on the surface of the circuit board body and at least one material piece arranged on the welding flux. The loading jig for the circuit board comprises a first jig body and a second jig body which can be magnetically attracted to each other, the first jig body is used for being arranged on the side, away from a material piece, of a circuit board body, the second jig body is used for being arranged on the side, away from the circuit board body, of the material piece, and the second jig body is provided with a ventilation hole aligned to the material piece. The area of the ventilation holes is smaller than that of the material pieces, the first jig and the second jig are fixed together through magnetic attraction force, the circuit board body, the welding flux and the material pieces are fixed into a whole in a stacked mode, the ventilation holes in the second jig enable the material pieces to be effectively and evenly heated, effective welding between the material pieces and the circuit board body is guaranteed, and the welding quality is improved. Local poor welding is avoided, and overall flatness of the circuit board is facilitated.

Description

Technical Field

[0001] This application relates to the field of circuit board manufacturing technology, and in particular to a loading fixture for circuit boards. Background Technology

[0002] During the circuit board manufacturing process, solder paste and components to be soldered need to be applied to the circuit board body. The entire circuit board is then placed into the furnace for soldering. Fixtures are used to fix the circuit board body and components to ensure alignment and bonding between the circuit board body, solder paste, and components.

[0003] Currently, circuit boards to be soldered are typically secured using trays and adhesive tape. The problem is that the high temperatures inside the furnace can cause localized warping of the circuit board itself or other components, leading to poor soldering between the components and the circuit board. The finished soldered product is also prone to localized or overall warping. Utility Model Content

[0004] The purpose of this application is to provide a loading fixture for circuit boards, which aims to provide a solution that can ensure the soldering quality and flatness of circuit boards.

[0005] This application embodiment is implemented as follows: a circuit board loading fixture includes:

[0006] For loading a circuit board to be soldered, the circuit board includes a circuit board body, solder on the surface of the circuit board body, and at least one material component on the solder. The loading fixture for the circuit board includes a first fixture and a second fixture that can magnetically attract each other. The first fixture is disposed on the side of the circuit board body away from the material component, and the second fixture is disposed on the side of the material component away from the circuit board body. At least the second fixture has ventilation holes aligned with the material component, and the area of ​​the ventilation holes is smaller than the area of ​​the material component.

[0007] In one embodiment, each of the circuit boards includes a plurality of material components spaced apart from each other, and the second fixture has a plurality of ventilation holes corresponding to each of the material components, and the second fixture also has ventilation holes corresponding to the spaces between the material components.

[0008] In one embodiment, the first fixture has a recessed first handle at the edge of its surface opposite to the second fixture, and / or the first fixture has a recessed third handle on its surface facing the second fixture, a portion of which overlaps with the second fixture.

[0009] And / or, the second fixture has a recessed second handle position at the edge of its surface opposite to the first fixture.

[0010] In one embodiment, the surface of the first fixture facing the second fixture is provided with a recessed clearance groove, which is used to avoid a label on the side of the circuit board body opposite to the material component.

[0011] In one embodiment, the second fixture includes a thin region and thick regions located on opposite sides of the thin region along a second direction, a recessed area is formed on the side of the thin region facing the first fixture, the ventilation hole extends through the thin region, the circuit board is located between the thin region and the first fixture, and the thick regions are used to abut against the surface of the first fixture.

[0012] In one embodiment, the thick region is provided with at least one first permanent magnet for magnetic attraction with the first fixture, and / or, the first fixture is provided with at least one second permanent magnet for magnetic attraction with the second fixture at a position corresponding to the thick region.

[0013] In one embodiment, a first mounting groove is provided on the side surface of the thick region opposite to the first fixture, and the first permanent magnet is disposed in the first mounting groove; a second mounting groove is provided on the side surface of the first fixture opposite to the second fixture, and the second permanent magnet is disposed in the second mounting groove.

[0014] In one embodiment, the two sides of the circuit board along the first direction are board edges, and the shape of the second fixture is configured such that the board edges are located outside the second fixture; the surface of the first fixture facing the second fixture is provided with a fourth handle position corresponding to the edge of the board edge; the second direction is perpendicular to the first direction.

[0015] In one embodiment, one of the surfaces of the first fixture facing the second fixture and the second fixture facing the first fixture is provided with a positioning post, and the other is provided with a positioning groove corresponding to the positioning post.

[0016] In one embodiment, the second fixture is provided with at least two positioning posts, and the first fixture is provided with at least two parallel guide grooves that extend to the edge of the first fixture, with the end of each guide groove connected to one of the positioning grooves.

[0017] The circuit board loading fixture provided in this application has the following advantages:

[0018] The circuit board loading fixture provided in this application includes a first fixture and a second fixture that can magnetically attract each other. The first fixture is disposed on the side of the circuit board body away from the material component, and the second fixture is disposed on the side of the material component away from the circuit board body. The second fixture has ventilation holes aligned with the material component, and the area of ​​the ventilation holes is smaller than the area of ​​the material component. On the one hand, the first fixture and the second fixture are fixed together by magnetic attraction, and the circuit board body, solder and material component are stacked and fixed as a whole. The magnetic attraction method allows the first fixture and the second fixture to be easily connected and disassembled. On the other hand, the second fixture has ventilation holes corresponding to the material component and smaller than the area of ​​the material component, so that each material component can be effectively heated and evenly heated while being pressed together during the welding process, ensuring effective welding between the material component and the circuit board body, avoiding the problem of poor local welding due to uneven heating, and also contributing to the overall flatness of the circuit board after welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the planar structure of the circuit board;

[0021] Figure 2 This is a side view structural diagram of the circuit board;

[0022] Figure 3 This is a schematic diagram of the planar structure of the first fixture in the circuit board loading fixture provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the planar structure of the second fixture in the circuit board loading fixture provided in the embodiments of this application;

[0024] Figure 5 This is a schematic diagram showing the pressing relationship between the circuit board loading fixture and the circuit board provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram showing the stacking relationship between the circuit board loading fixture and the circuit board provided in the embodiments of this application;

[0026] Figure 7 This is a schematic diagram of the docking method between the first fixture and the second fixture in the circuit board loading fixture provided in the embodiments of this application.

[0027] The markings in the diagram mean:

[0028] 100-Packaging fixture for circuit boards

[0029] 1-Circuit board, 11-Circuit board body, 12-Solder, 13-Material component, 14-Board edge, 15-Label, 16-Gap;

[0030] 5-First fixture, 51-First mounting slot, 52-First permanent magnet, 53-Guide slot, 54-Positioning slot, 55-First handle position, 56-Third handle position, 57-Fourth handle position, 58-Allowing slot;

[0031] 6-Second fixture, 60-Ventilation hole, 61-Second mounting groove, 62-Second permanent magnet, 63-Thin area, 630-Concave area, 64-Thick area, 65-Second handle position, 66-Positioning post;

[0032] X - First direction, Y - Second direction, Z - Third direction. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly fixed to or set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent. The terms "first" and "second" are used only for the purpose of description and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly specified.

[0035] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific accompanying drawings and embodiments.

[0036] Please see Figure 3 , Figure 4 and Figure 5 As shown in the figure, this application provides a circuit board loading fixture 100 for loading a circuit board 1 to be soldered, so as to ensure the fixation and accuracy of the soldering parts during the soldering process.

[0037] Specifically, please refer to Figure 2As shown, the circuit board 1 includes a circuit board body 11, solder 12 disposed on the surface of the circuit board body 11, and at least one material component 13 disposed on the solder 12. Here, the stacking direction of the solder 12 and the material component 13 is the third direction Z, which is the thickness direction of the circuit board body 11.

[0038] After melting, the solder 12 can bond the circuit board body 11 and the component 13 together. Furthermore, after cooling, the molten solder 12 can solder the circuit board body 11 and the component 13 together.

[0039] In some cases, after the circuit board body 11 is soldered to the component 13, the circuit board 1 can be divided according to the component 13 to obtain multiple smaller boards. Subsequently, depending on the specific application requirements, corresponding materials or components can be soldered onto the smaller boards.

[0040] In specific applications, the type of component 13 to be soldered is not limited, and depends on the function and requirements of the circuit board 1. For example, in one alternative embodiment, the component 13 can be a tin-plated plastic component. In other alternative embodiments, the component 13 can be other components.

[0041] Please see Figure 3 and Figure 4 As shown, the circuit board loading fixture 100 includes a first fixture 5 and a second fixture 6 that are magnetically attracted to each other. The first fixture 5 is disposed on the side of the circuit board body 11 opposite to the material component 13, and the second fixture 6 is disposed on the side of the material component 13 opposite to the circuit board body 11. (Please refer to the attached document for more details.) Figure 2 As shown, at least the second fixture 6 is provided with a ventilation hole 60 for aligning with the material part 13, and the area of ​​the ventilation hole 60 is smaller than the area of ​​the material part 13. Please refer to the reference. Figure 4 and Figure 5 As shown.

[0042] The circuit board loading fixture 100 provided in this application embodiment includes a first fixture 5 and a second fixture 6 that are magnetically attracted to each other. The first fixture 5 is disposed on the side of the circuit board body 11 facing away from the material component 13, and the second fixture 6 is disposed on the side of the material component 13 facing away from the circuit board body 11. The second fixture 6 is provided with ventilation holes 60 aligned with the material component 13, and the area of ​​the ventilation holes 60 is smaller than the area of ​​the material component 13. On the one hand, the first fixture 5 and the second fixture 6 are fixed together by magnetic attraction, and the circuit board body 11, solder 12 and material component 13 are stacked and fixed as a whole, ensuring... The relative positions of the circuit board body 11, solder 12, and component 13 are fixed by magnetic attraction, which allows the first fixture 5 and the second fixture 6 to be easily connected and disassembled. On the other hand, the second fixture 6 is provided with ventilation holes 60 corresponding to the component 13 and smaller than the area of ​​the component 13, so that each component 13 can be effectively and evenly heated while being pressed during the welding process, thus ensuring effective welding between the component 13 and the circuit board body 11 and avoiding the problem of poor local welding due to uneven heating. Thirdly, it also helps to ensure the overall flatness of the circuit board 1 after welding.

[0043] Specifically, circuit board 1 can be heated and soldered in a heating device. For example, the heating device can be a reflow soldering device.

[0044] like Figure 2 As shown, each component 13 is provided with multiple solders 12 between it and the circuit board body 11. It is necessary to ensure that each solder 12 can reliably connect the component 13 and the circuit board body 11.

[0045] Depending on specific needs, the number of material components 13 to be soldered on the circuit board body 11 can be one or more, for example... Figure 1 As shown, there are multiple material components 13, arranged in a two-dimensional array along the first direction X and the second direction Y on the surface of the circuit board 1. The first direction X and the second direction Y are different directions located on the same plane. For example, the first direction X and the second direction Y can both be perpendicular to the third direction Z. In other optional embodiments, depending on the shape of the material components 13 or the specific arrangement requirements, the first direction X and the second direction Y can have other relative relationships. For example, the first direction X can be a circumferential direction and the second direction Y can be a radial direction, or the first direction X and the second direction Y can both be straight lines but set at a certain angle. Hereinafter, the example of the first direction X and the second direction Y being straight lines and perpendicular to each other will be used for explanation.

[0046] In one embodiment, please refer to [reference needed]. Figure 4 and Figure 5 As shown, the second fixture 6 has multiple ventilation holes 60 corresponding to each material part 13, for example, Figure 4As shown, the second fixture 6 has nine ventilation holes 60 corresponding to each material component 13. Furthermore, the ventilation holes 60 corresponding to each material component 13 are evenly distributed. The purpose of this arrangement is to allow for a smaller area for each ventilation hole 60 corresponding to each material component 13, resulting in a multi-point, evenly distributed area on the material component 13 for direct contact with hot air. Additionally, the area on the second fixture 6 that presses the material component 13 is also multi-point and generally evenly distributed. This helps to further ensure uniform heating and pressure on the material component 13 from the second fixture 6, thereby ensuring the consistency of welding between the material component 13 and the circuit board body 11, and the surface flatness of the material component 13 after welding.

[0047] Please see Figure 1 and Figure 2 As shown, adjacent material components 13 are spaced a certain distance apart. In an optional embodiment, please refer to... Figure 4 and Figure 5 As shown, the second fixture 6 also has ventilation holes 60 at the positions corresponding to the material parts 13. The purpose of this arrangement is to create a certain gap 16 between the adjacent sides of the material parts 13, such as... Figure 2 As shown, by providing ventilation holes 60 corresponding to the gap 16, hot air can be allowed to enter the gap 16 between adjacent material parts 13 through the ventilation holes 60 and reach the area around the solder 12, so that the solder 12 melts uniformly. Therefore, this further helps to ensure the welding consistency of each point between the material parts 13 and the circuit board body 11.

[0048] In some embodiments, the edges of a plurality of material pieces 13 are connected by a connecting part (not shown), the connecting part being small in size and not affecting the flow of hot air into the aforementioned gap 16.

[0049] In order to achieve mutual magnetic attraction between the first fixture 5 and the second fixture 6, permanent magnets can be provided on both the first fixture 5 and the second fixture 6, or a permanent magnet can be provided on one of the first fixture 5 and the second fixture 6, and at least a part of the other is made of ferromagnetic material, so that the permanent magnet and the ferromagnetic material can be mutually magnetically attracted.

[0050] like Figure 3 As shown, at least one first permanent magnet 52 is fixedly mounted on the first fixture 5, such as... Figure 4 As shown, at least one second permanent magnet 62 is correspondingly provided on the second fixture 6. The mutual magnetic attraction between the first permanent magnet 52 and the second permanent magnet 62 is achieved.

[0051] The purpose of this design is that the bodies of the first fixture 5 and the second fixture 6 can be made of non-ferromagnetic materials. The appropriate material can be selected according to the process requirements. For example, the bodies of the first fixture 5 and the second fixture 6 can be made of aluminum, etc.

[0052] Specifically, such as Figure 6 As shown, the first permanent magnet 52 and the second permanent magnet 62 are aligned in the third direction Z.

[0053] Optionally, such as Figure 3 As shown, the first fixture 5 is provided with at least one first mounting groove 51, and the first permanent magnet 52 is fixed in the first mounting groove 51. Specifically, the first permanent magnet can be fixed in the first mounting groove 51 by means of snap-fit, interference fit or adhesive.

[0054] In one specific embodiment of this application, the first permanent magnet 52 is fixed in the first mounting groove 51 by adhesive bonding. Further optionally, the first mounting groove 51 is formed from the surface of the first fixture 5 facing away from the second fixture 6, and is a blind hole; see [link to relevant documentation]. Figure 3 As shown and Figure 6 As shown. The purpose of this arrangement is that the second permanent magnet 62 applies a force toward the first permanent magnet 52 towards the second fixture 6, which serves to limit the first permanent magnet 52 in the third direction Z for the first mounting groove 51 in the form of a blind hole. In this way, the first permanent magnet 52 can be stably and reliably held in the first mounting groove 51 and will not fall out of the first mounting groove 51 due to the interaction with the second permanent magnet 62.

[0055] Optionally, such as Figure 4 As shown, the second fixture 6 is provided with at least one second mounting groove 61, and the second permanent magnet 62 is fixed in the second mounting groove 61. Further optionally, the second mounting groove 61 is formed from the surface of the second fixture 6 facing away from the first fixture 5, and is a blind hole. (See [reference]). Figure 4 and Figure 6 As shown. The purpose of this arrangement is that the first permanent magnet 52 applies a force toward the second permanent magnet 62 towards the first fixture 5, which serves to limit the second permanent magnet 62 in the third direction Z for the second mounting groove 61 in the form of a blind hole. In this way, the second permanent magnet 62 can be stably and reliably held in the second mounting groove 61 and will not fall out of the second mounting groove 61 due to the interaction with the first permanent magnet 52.

[0056] In other alternative embodiments, the first permanent magnet 52 or the second permanent magnet 62 can be replaced with some ferromagnetic materials.

[0057] Please see Figure 3 and Figure 4As shown, there are multiple first permanent magnets and multiple second permanent magnets 62. In other embodiments, the first permanent magnets 52 and the second permanent magnets 62 can be disposed in other positions, as long as they can press the circuit board 1 together.

[0058] In one embodiment, please refer to Figure 3 and Figure 5 As shown, in one embodiment, the edge of the first fixture 5 is located outside the edge of the circuit board body 11, so that the entire circuit board body 11 is supported on the first fixture 5. Figure 4 and Figure 5 As shown, the shape of the second fixture 6 can be configured to completely cover the circuit board body 11, or it can partially cover the circuit board body 11.

[0059] like Figure 1 and Figure 2 As shown, in one embodiment, the circuit board body 11 includes a board edge 14, which may be located at at least one side edge of the circuit board body 11. Since solder 12 and material parts 13 do not need to be provided on the board edge 14, the second fixture 6 may be configured to expose the board edge 14.

[0060] Specifically, such as Figure 1 As shown, the board edges 14 are disposed on opposite sides of the circuit board body 11 along the first direction X. Figure 5 As shown, the plate edges 14 on both sides are located outside the second fixture 6.

[0061] To accommodate the thickness of circuit board 1 and to ensure that the distance between the second fixture 6 and the first fixture 5 is as close as possible and that they are magnetically attracted to each other, in one embodiment, such as Figure 4 and Figure 6 As shown, the second fixture 6 includes a thin region 63 and thick regions 64 located on opposite sides of the thin region 63 along the second direction Y. A recessed region 630 is formed on the side of the thin region 63 facing the first fixture 5. Each ventilation hole 60 passes through the thin region 63. The circuit board 1 is located between the thin region 63 and the first fixture 5. The surface of the thick region 64 is used to magnetically attract and abut against the surface of the first fixture 5.

[0062] Thus, the circuit board 1 is positioned between the surface of the thin region 63 and the first fixture 5. The width of the thin region 63 along the second direction Y is equal to the width of the circuit board 1 along the second direction Y, thereby allowing the side of the thick region 64 facing the thin region 63 to abut against the opposite sides of the circuit board 1 along the second direction Y. The purpose of this arrangement is to limit and fix the circuit board 1 in the second direction Y.

[0063] Please see Figure 6 As shown, the surface of the first fixture 5 and the thick area 64 are magnetically attracted to each other. For details, please refer to... Figure 4 and Figure 6As shown, the second mounting groove 61 and the second permanent magnet 62 are disposed on the side of the thick area 64 facing away from the first fixture 5, and the second mounting groove 61 is disposed on the first fixture 5 at the position corresponding to the thick area 64.

[0064] The second permanent magnet 62 is arranged at intervals along the first direction X.

[0065] In other embodiments, the thick region 64 of the second fixture 6 may be made of ferromagnetic material, or the second mounting groove 61 and the second permanent magnet 62 may be disposed on the thickness, and at least the portion of the first fixture 5 corresponding to the thick region 64 may be made of ferromagnetic material.

[0066] Please continue reading. Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, a recessed first handle 55 is provided at the edge of the surface of the first fixture 5 facing away from the second fixture 6. This first handle 55 facilitates the operator in picking up the first fixture 5 from a flat surface such as a tabletop. It is understood that the depth of the first handle 55 is less than the thickness of the first fixture 5.

[0067] The number and arrangement of the first grip positions 55 are not limited, as long as they are convenient for the operator's operating habits. For example, normally, the operator uses his thumb and forefinger to pick up the first fixture 5. In this case, the first grip positions 55 can be set on opposite sides of the first fixture 5.

[0068] In some alternative embodiments, the first handle position 55 may be provided on multiple sides of the first fixture 5, for example, four sides, so that the operator can easily pick up the first fixture 5 from different directions.

[0069] Further optional, such as Figure 3 As shown, the first handle position 55 is continuously arranged along the edge of the first fixture 5, thus the first handle position 55 is annular. This provides the operator with more directions for handling.

[0070] Please see Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the second fixture 6 has a recessed second handle 65 at the edge of its surface facing the first fixture 5. This second handle 65 facilitates the operator in lifting the second fixture 6 from a flat surface such as a tabletop. It is understood that the depth of the second handle 65 is less than the thickness of the second fixture 6.

[0071] The number and arrangement of the first grip positions 55 are not limited, as long as they are convenient for the operator's operating habits. For example, normally, the operator uses his thumb and forefinger to pick up the first fixture 5. At this time, the second grip positions 65 can be set on opposite sides of the first fixture 5 along the second direction Y, that is, the second grip positions 65 are set at the mutually opposing edges of the thick area 64.

[0072] Further, please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the surface of the first fixture 5 facing the second fixture 6 has a recessed third handle position 56. A portion of the third handle position 56 overlaps with the second handle position 65 of the second fixture 6, while the other portion of the third handle position 56 is located outside the second fixture 6. The purpose of this arrangement is that the overlap between the third handle position 56 and the second handle position 65 further increases the space for the operator's fingers, thereby facilitating the operator to remove and separate the second fixture 6 from the first fixture 5. The depth of the third handle position 56 is less than the thickness of the first fixture 5.

[0073] Thus, the thickness of the second fixture 6 and the first fixture 5 can be set to be relatively small, as long as the strength requirements are met. At the same time, the first fixture 5 and the second fixture 6 with smaller thickness have the advantages of low weight and low material cost.

[0074] In one alternative embodiment, such as Figure 3 , Figure 5 and Figure 6 As shown, the surface of the first fixture 5 facing the second fixture 6 is also provided with a fourth handle position 57. The fourth handle position 57 corresponds to at least one edge of the circuit board 1 along the first direction X, that is, the edge of the board edge 14 of the circuit board 1. In other words, in the first direction X, a part of the fourth handle position 57 is covered by the circuit board body 11, and the other part of the fourth handle position 57 is outside the circuit board body 11. The purpose of this arrangement is that the operator can conveniently pick up the board edge 14 of the soldered circuit board 1 by placing his / her finger on the fourth handle position 57.

[0075] In one specific embodiment, there are two fourth handle positions 57, which are arranged at intervals along the first direction X, respectively corresponding to the edge of the board edge 14 of the circuit board body 11.

[0076] In one alternative embodiment, such as Figure 3 and Figure 6 As shown, the first fixture 5 is also provided with a relief groove 58 on its surface facing the second fixture 6. The relief groove 58 is used to avoid the label 15 on the circuit board 1, thereby preventing the label 15 on the circuit board 1 from sticking or adhering to the surface of the first fixture 5.

[0077] The label 15 is used to record production information during the manufacturing process of the circuit board 1. Specifically, the label 15 records the manufacturer's number, which corresponds to relevant information.

[0078] The location of label 15 is not limited depending on the manufacturer's design requirements. In one optional embodiment, label 15 is located at the position corresponding to the edge 14 of the plate, that is, label 15 is located on the surface of the edge 14 facing the first fixture 5. Therefore, the clearance groove 58 is also located at the position corresponding to the edge 14 of the plate.

[0079] Optionally, such as Figure 3 As shown, the clearance groove 58 can partially overlap with the fourth handle position 57, and the thickness of the clearance groove 58 and the depth of the fourth handle position 57 can be the same or different. Alternatively, the clearance groove 58 and the fourth handle position 57 can not overlap, and the thickness of the clearance groove 58 and the depth of the fourth handle position 57 can be the same or different; or, the clearance groove 58 and the fourth handle position 57 can completely overlap. The key is to simultaneously satisfy the need to avoid the label 15 and facilitate the removal of the board edge 14.

[0080] Please see Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in one embodiment, the first fixture 5 and the second fixture 6 are positioned by the interlocking of the positioning groove 54 and the positioning post 66, so as to ensure that the above-mentioned ventilation opening, the first handle position 55 to the fourth handle position 57, etc. can be aligned with the required positions.

[0081] The positioning groove 54 and the positioning post 66 are disposed on the adjacent side surfaces of the first fixture 5 and the second fixture 6.

[0082] This application embodiment is illustrated by taking the example of a positioning groove 54 being disposed on a first fixture 5 and a positioning post 66 being disposed on a second fixture 6.

[0083] like Figure 3 , Figure 6 and Figure 7 As shown, the surface of the first fixture 5 facing the second fixture 6 is provided with a plurality of positioning grooves 54 recessed along the third direction Z, and the surface of the second fixture 6 facing the first fixture 5 is provided with a plurality of positioning posts 66 protruding along the third direction Z; please refer to Figure 6 As shown, on the third direction Z, the positioning post 66 may be at least partially located within the positioning groove 54.

[0084] On the one hand, the positioning relationship between the positioning pin 66 and the positioning groove 54 ensures that the second fixture 6 falls at the same position as the first fixture 5; on the other hand, the inner peripheral wall of the positioning groove 54 can limit the positioning pin 66, ensuring that the second fixture 6 will not slide relative to the first fixture 5.

[0085] Please continue reading. Figure 3 , Figure 6 As shown, in order to achieve rapid alignment of the positioning posts 66 and the positioning grooves 54, in an optional embodiment, the surface of the second fixture 6 facing the first fixture 5 is provided with at least two positioning posts 66, and the surface of the first fixture 5 facing the first fixture 5 is provided with at least two parallel guide grooves 53 extending to the edge of the first fixture 5, with the end of each guide groove 53 connected to a positioning groove 54. The purpose of this arrangement is, please refer to... Figure 7 As shown, when the operator needs to place the second fixture 6 on the first fixture 5, the second fixture 6 can be tilted at a certain angle relative to the first fixture 5. The positioning post 66 is aligned with the open end of each guide groove 53. Then, the positioning post 66 is slid along the guide groove 53 until it reaches the corresponding positioning groove 54. Finally, the second fixture 6 is flipped until it is parallel to the first fixture 5.

[0086] In one optional embodiment, the surface of the second fixture 6 facing the first fixture 5 is provided with at least three positioning posts 66, which are not located on the same straight line. At least two of the positioning posts 66 are used to cooperate with the positioning groove 54 at the end of the guide groove 53, and at least one other positioning post 66 is used to cooperate with other positioning grooves 54.

[0087] like Figure 3 As shown, in one optional embodiment, the guide groove 53 extends along the first direction X, and the two guide grooves 53 have the same length. At least two positioning posts 66 are spaced apart along the second direction Y, and at least two other positioning posts 66 are spaced apart along the first direction X.

[0088] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A loading jig for a circuit board, characterized by comprising: The application relates to a loading jig for loading circuit boards to be soldered, wherein the circuit board comprises a circuit board body, solder arranged on the surface of the circuit board body, and at least one material piece arranged on the solder, the loading jig comprises a first jig and a second jig capable of being mutually magnetically attracted, the first jig is arranged on the side of the circuit board body away from the material piece, and the second jig is arranged on the side of the material piece away from the circuit board body, wherein at least the second jig is provided with air holes for aligning the material piece, and the area of the air holes is smaller than the area of the material piece.

2. The board loading jig according to Claim 1, wherein Each of the circuit boards comprises a plurality of material pieces arranged at intervals, and the second jig is provided with a plurality of air holes corresponding to each of the material pieces, and the second jig is also provided with the air holes between the material pieces.

3. The board loading jig according to Claim 1, wherein The side surface edge of the first jig away from the second jig is provided with a recessed first handgrip position, and / or the side surface of the first jig towards the second jig is provided with a recessed third handgrip position, and a part of the third handgrip position overlaps the second jig. And / or the side surface edge of the second jig away from the first jig is provided with a recessed second handgrip position.

4. The board loading jig according to Claim 1, wherein The side surface of the first jig towards the second jig is provided with a recessed avoiding groove for avoiding labels on the side of the circuit board body away from the material piece.

5. The board loading jig according to Claim 1, wherein The second jig comprises a thin area and thick areas located on the opposite sides of the thin area along a second direction, the side of the thin area towards the first jig forms a recessed area, the air holes penetrate the thin area, the circuit board is located between the thin area and the first jig, and the thick areas are used for abutting against the surface of the first jig.

6. The board loading jig according to Claim 5, wherein The thick areas are provided with at least one first permanent magnet for mutually magnetically attracting the first jig, and / or the first jig is provided with at least one second permanent magnet corresponding to the positions of the thick areas for mutually magnetically attracting the second jig.

7. The board loading jig according to Claim 6, wherein The side surface of the thick area away from the first jig is provided with a first mounting groove, and the first permanent magnet is arranged in the first mounting groove; the side surface of the first jig away from the second jig is provided with a second mounting groove, and the second permanent magnet is arranged in the second mounting groove.

8. The board loading jig according to Claim 5, wherein The two sides of the circuit board along a first direction are plate edges, the shape of the second jig is arranged so that the plate edges are located outside the second jig, the side surface of the first jig towards the second jig is provided with a fourth handgrip position corresponding to the edges of the plate edges, and the second direction is perpendicular to the first direction.

9. The board loading jig according to any one of claims 1 to 8, wherein One of the side surface of the first jig towards the second jig and the side surface of the second jig towards the first jig is provided with a positioning column, and the other is provided with a positioning groove corresponding to the positioning column.

10. The board loading jig according to Claim 9, wherein The second jig is provided with at least two positioning columns, and the first jig is provided with at least two guide grooves parallel to each other and penetrating to the edges of the first jig, and the ends of each of the guide grooves are connected with one of the positioning grooves respectively.

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