PCBA jointed board structure capable of improving production efficiency

Abstract

The embodiment of the utility model provides a PCBA jointed board structure capable of improving production efficiency, and belongs to the technical field of circuit board design and manufacturing. The jointed board structure comprises a process edge and a plurality of PCB unit boards, a hollow area is defined by the process edge, and the plurality of PCB unit boards are arranged in the hollow area; hollowed-out grooves are formed between any two adjacent PCB unit boards and between any adjacent PCB unit board and the process edge; the vertex angle of each PCB unit board is connected with the vertex angle or the process edge of the adjacent PCB unit board through a connecting bridge; the connecting bridge comprises a first wide part, a narrow part and a second wide part which are sequentially connected in the milling direction, the narrow part is parallel to the washing and cutting direction, the width of the narrow part is smaller than or equal to the width of a milling cutter in the milling technology, and the first wide part and the second wide part are used for being connected with the vertex angle or the technology edge of the PCB unit board. And during milling, the milling cutter starts to process from any wide part to another wide part, and the narrow part can be completely milled by the milling cutter, so that the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit board design and manufacturing technology, and particularly relates to a PCBA splicing board structure improving production efficiency. BACKGROUND

[0002] PCB (Printed Circuit Board), Chinese name is printed circuit board, also called printed wiring board, is an important electronic component, is the support of electronic components, is the carrier of electronic components electrical interconnection. With the development of electronic product industrialization, PCB industry mass production is the inevitable demand of mature products, at present in the process of PCBA (Printed Circuit Board Assembly) processing, the length and width size of single PCB unit board does not satisfy the minimum value of production equipment, therefore needs to arrange and combine several PCB unit boards (commonly known as splicing board), then sends this splicing board to the production line and installs components, finally divides down the PCB unit board that is completed by mounting and welding.

[0003] The traditional segmentation process needs to cut each PCB unit board around once to divide down the corresponding PCB unit board, the process is complex, the milling cutter reversing movement takes much time, and the production efficiency is affected. UTILITY MODEL CONTENT

[0004] The utility model discloses a PCBA splicing board structure improving production efficiency, which sets a connecting bridge to connect the top corner of each PCB unit board with the top corner or process edge of the adjacent PCB unit board, without affecting the half edge plating pin of the four corners of each PCB unit board. Meanwhile, the connecting bridge includes a first wide part, a second wide part and a narrow part connecting the first wide part and the second wide part. The first wide part and the second wide part are used to connect the top corner or process edge of the PCB unit board. When milling, the milling cutter starts from any wide part, mills the wide part at the starting position first, then mills the narrow part, and finally mills the other wide part. Since the width of the narrow part is less than or equal to the width of the milling cutter in the milling process, the narrow part is completely milled by the milling cutter, so that the top corner or process edge of the PCB unit board connected by the connecting bridge is divided. The same connecting bridge only needs to be milled once by the milling cutter, and a PCB unit board only needs to be milled once on the periphery of the two edges parallel to the milling direction, so that the PCB unit board can be cut with the process edge or other PCB unit board, reducing the process. The milling cutter only needs to be processed in one direction without reversing, saving time and improving production efficiency.

[0005] In order to achieve the above object, the utility model discloses a kind of PCBA splicing plate structures for improving production efficiency, the splicing plate structure includes process edge and multiple PCB unit boards, the process edge is enclosed hollow region, and the multiple PCB unit boards are arranged in the hollow region;Any two PCB unit boards between any adjacent, and any adjacent PCB unit board and the process edge between are formed with hollow groove;The top corner of each PCB unit board is connected with the top corner of adjacent PCB unit board or process edge by connecting bridge;The connecting bridge includes first wide part, narrow part and second wide part sequentially connected along milling direction, the narrow part is parallel with milling direction, and the width of narrow part is less than or equal to the width of milling cutter in milling process, and the first wide part and second wide part are used to connect the top corner of PCB unit board or process edge.

[0006] According to the above technical means, the PCBA splicing plate structure is provided with connecting bridge to connect the top corner of each PCB unit board with the top corner of adjacent PCB unit board or process edge, without affecting the half edge electroplating pin around each PCB unit board, while the connecting bridge includes first wide part, second wide part and narrow part connecting the first wide part and second wide part, the first wide part and second wide part are used to connect the top corner of PCB unit board or process edge, when milling machining passes through connecting bridge, milling cutter starts machining from any wide part, first milling the wide part at starting position, then the narrow part, and finally passing through another wide part, since the width of narrow part is less than or equal to the width of milling cutter in milling process, the narrow part is completely milled by milling cutter, so as to separate the top corner of PCB unit board or process edge connected by the connecting bridge, the same connecting bridge only needs to be machined by milling cutter once, and a PCB unit board only needs to be milled once in the periphery of two edges parallel to milling direction, so as to be cut off from process edge or other PCB unit board, reduce process, and the milling cutter only needs to be machined in one direction without reversing, saving time and improving production efficiency.

[0007] In some feasible embodiments, the width of the narrow part is less than or equal to the process value, and the process value is equal to the width of the milling cutter in the milling process minus the positioning tolerance value.

[0008] According to the above technical means, the width of the connecting bridge narrow part is less than or equal to the width of the milling cutter in the milling process minus the positioning tolerance value, which can further ensure that the milling cutter will cut off the narrow part, and avoid that the narrow part cannot be completely cut off when the milling cutter deviates from the center line of the hollow groove in the hollow groove.

[0009] In some feasible embodiments, unit board optical positioning points are further provided on the connecting bridge, and the unit board optical positioning points on each connecting bridge correspond to an adjacent PCB unit board.

[0010] According to the above technical means, the single-board optical positioning point corresponding to the PCB unit board on the connecting bridge can be used for the patch machine to accurately position the scrapped PCB unit board on the whole panel structure, so that the patch machine can automatically give up the component mounting on the scrapped PCB unit board during operation.

[0011] In some possible embodiments, the process edge is also provided with a panel optical positioning point.

[0012] In some possible embodiments, the process edge is also provided with a clamp positioning hole.

[0013] In some possible embodiments, the plurality of PCB unit boards are arranged in an array in the hollow area.

[0014] In some possible embodiments, the hollow groove is a milled groove.

[0015] In some possible embodiments, the PCB unit board is provided with a half-side electroplated pin around the periphery.

[0016] Through the above technical solution, the PCBA panel structure sets the connecting bridge to connect the top corner of each PCB unit board and the top corner of the adjacent PCB unit board or the process edge, without affecting the half-side electroplated pin around the periphery of each PCB unit board, and the connecting bridge includes a first wide part, a second wide part, and a narrow part connecting the first wide part and the second wide part, the first wide part and the second wide part are used to connect the top corner of the PCB unit board or the process edge, when the milling process passes through the connecting bridge, the milling cutter starts processing from any wide part, first mills the wide part at the starting position, then mills the narrow part, and finally passes through the other wide part, since the width of the narrow part is less than or equal to the width of the milling cutter in the milling process, the narrow part will be completely milled by the milling cutter, so that the top corner of the PCB unit board connected by the connecting bridge or the process edge is divided, the same connecting bridge only needs to be processed once by the milling cutter, and a PCB unit board only needs to be milled once on the periphery of two edges parallel to the milling direction, so as to be cut off from the process edge or other PCB unit boards, thereby reducing the process, the milling cutter only needs to be processed in one direction without reversing, saving time and improving production efficiency.

[0017] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of a PCBA panel structure provided by an embodiment of the present application;

[0020] Figure 2 is a connection bridge structure amplification schematic diagram provided by an embodiment of the application.

[0021] Reference signs

[0022] 1 - process edge, 2 - PCB unit board, 3 - connection bridge, 4 - unit board optical positioning point, 5 - spliced board optical positioning point, 6 - hollow groove, 2-1 - half edge electroplating pin, 3-1 - first wide part, 3-2 - narrow part, 3-3 - second wide part. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model embodiments will be described in detail below in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model embodiments, and are not used to limit the utility model embodiments.

[0024] In the embodiments of the utility model, unless otherwise stated, the orientation words such as "up, down, left, right" generally refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used.

[0025] The terms "first", "second", "third" and the like are only used for distinction and description, and cannot be understood as indicating or implying relative importance.

[0026] The terms "horizontal", "vertical", "suspension" and the like do not mean that the components must be absolutely horizontal, vertical or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In addition, the terms "approximately", "substantially" and the like are intended to describe the relevant content and not to require absolute accuracy, but can have some deviation. For example, "approximately equal" does not mean only absolute equality, because in the actual production and operation process, it is difficult to achieve absolute "equality", and generally there is a certain deviation. Therefore, in addition to absolute equality, "approximately equal" also includes the above-mentioned case of having a certain deviation. For example, in other cases, unless otherwise specified, the terms "approximately", "substantially" and the like have the same meaning as above.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] Please refer to Figure 1 and Figure 2 This embodiment provides a PCBA panel structure to improve production efficiency. The panel structure includes a process edge 1 and multiple PCB unit boards 2. The process edge 1 forms a hollow area, and the multiple PCB unit boards 2 are disposed in the hollow area. A cutout groove 6 is formed between any two adjacent PCB unit boards 2 and between any adjacent PCB unit board 2 and the process edge 1. The top corner of each PCB unit board 2 is connected to the top corner of an adjacent PCB unit board 2 or the process edge 1 through a connecting bridge 3. The connecting bridge 3 includes a first wide portion 3-1, a narrow portion 3-2 and a second wide portion 3-3 connected sequentially along the milling direction. The narrow portion 3-2 is parallel to the milling direction, and the width of the narrow portion 3-2 is less than or equal to the width of the milling cutter in the milling process. The first wide portion 3-1 and the second wide portion 3-3 are used to connect the top corner of the PCB unit board 2 or the process edge 1.

[0031] In one embodiment, the width of the cutout 6 is 2mm, and the width of the milling cutter in the milling process is 1.8mm. Therefore, the width of the narrow portion 3-2 of the connecting bridge 3 is less than or equal to 1.8mm.

[0032] In the embodiments of this application, each PCB unit board 2 is a PCB unit board of the same model, each PCB unit board 2 is a quadrilateral with 4 vertices, and multiple PCB unit boards 2 are distributed in X rows and Y columns in the hollow area enclosed by the process edge 1. Figure 1 The diagram shows eight PCB unit boards 2, arranged in two rows and four columns within a hollow area enclosed by the process edge 1. Each connecting bridge 3 has two connection ends in its first width portion 3-1 and second width portion 3-3. Figure 1In the embodiment, the top corner of the upper left position of the first PCB unit board 2 in the first column is adjacent to the vertical process edge and the horizontal process edge, the top corner of the upper left position of the first PCB unit board 2 in the first column is connected to one connecting end of the second wide part 3-3 of the connecting bridge 3, the two connecting ends of the first wide part 3-1 are connected to the horizontal process edge and the vertical process edge respectively, and the other connecting end of the second wide part 3-3 is connected to the vertical process edge. In actual design, since the process edge 1 and the connecting bridge 3 are made of the same material, the connecting bridge 3 and the connecting part of the process edge 1 can be fused, for example, the two connecting ends of the first wide part 3-1 of the connecting bridge 1 and the horizontal process edge and the vertical process edge are made as a whole, and the connecting end of the second wide part 3-3 connected to the vertical process edge and the vertical process edge are made as a whole.

[0033] Figure 1 In the embodiment, the top corner of the upper left position of the first PCB unit board 2 in the first column is adjacent to the vertical process edge and the horizontal process edge, the top corner of the upper left position of the first PCB unit board 2 in the first column is connected to one connecting end of the second wide part 3-3 of the connecting bridge 3, the two connecting ends of the first wide part 3-1 are connected to the horizontal process edge and the vertical process edge respectively, and the other connecting end of the second wide part 3-3 is connected to the vertical process edge. In actual design, since the process edge 1 and the connecting bridge 3 are made of the same material, the connecting bridge 3 and the connecting part of the process edge 1 can be fused, for example, the two connecting ends of the first wide part 3-1 of the connecting bridge 1 and the horizontal process edge and the vertical process edge are made as a whole, and the connecting end of the second wide part 3-3 connected to the vertical process edge and the vertical process edge are made as a whole.

[0034] Figure 1 In the embodiment, the top corner of the upper left position of the first PCB unit board 2 in the first column is adjacent to the vertical process edge and the horizontal process edge, the top corner of the upper left position of the first PCB unit board 2 in the first column is connected to one connecting end of the second wide part 3-3 of the connecting bridge 3, the two connecting ends of the first wide part 3-1 are connected to the horizontal process edge and the vertical process edge respectively, and the other connecting end of the second wide part 3-3 is connected to the vertical process edge. In actual design, since the process edge 1 and the connecting bridge 3 are made of the same material, the connecting bridge 3 and the connecting part of the process edge 1 can be fused, for example, the two connecting ends of the first wide part 3-1 of the connecting bridge 1 and the horizontal process edge and the vertical process edge are made as a whole, and the connecting end of the second wide part 3-3 connected to the vertical process edge and the vertical process edge are made as a whole.

[0035] Figure 1 The milling cutter only needs to process in the vertical direction when the spliced board structure shown in the embodiment is milled, that is, the connecting bridge 3 is cut off, and no horizontal processing is required except for the process edge 1.

[0036] It should be noted that the first wide part 3-1 and the second wide part 3-3 of the connecting bridge 3 are completely the same in structure, and the milling cutting process can start from the second wide part 3-3 or the first wide part 3-1.

[0037] According to the above technical means, the PCBA splicing structure is provided with a connecting bridge for connecting the top corner of each PCB unit plate with the top corner or process edge of an adjacent PCB unit plate, without affecting the half-edge electroplated pins around each PCB unit plate. Meanwhile, the connecting bridge comprises a first wide part, a second wide part and a narrow part connecting the first wide part and the second wide part. The first wide part and the second wide part are used for connecting the top corner or process edge of the PCB unit plate. When the connecting bridge is milled, the milling cutter starts from any wide part, mills the wide part at the starting position first, then mills the narrow part, and finally mills the other wide part. Since the width of the narrow part is less than or equal to the width of the milling cutter in the milling process, the narrow part is completely milled by the milling cutter, so that the top corner or process edge of the PCB unit plate connected by the connecting bridge is separated. The same connecting bridge only needs to be milled once by the milling cutter, and a PCB unit plate only needs to be milled once on the periphery of two edges parallel to the milling direction, so that the process is reduced, the milling cutter only needs to be milled in one direction without reversing, time is saved, and production efficiency is improved.

[0038] In some possible embodiments, the width of the narrow part is less than or equal to a process value, and the process value is equal to the width of the milling cutter in the milling process minus a positioning tolerance. The positioning tolerance refers to the allowed tolerance of the device performing the milling process using the splicing optical positioning point for positioning. The positioning tolerance is generally determined according to the positioning accuracy of the device.

[0039] According to the above technical means, the width of the narrow part of the connecting bridge is less than or equal to the width of the milling cutter in the milling process minus the positioning tolerance, which can further ensure that the milling cutter will cut off the narrow part, and avoid the situation that the narrow part cannot be completely cut off when the milling cutter deviates from the center line of the hollow groove.

[0040] In some possible embodiments, the connecting bridge 3 is further provided with a unit plate optical positioning point 4. The unit plate optical positioning point 4 on each connecting bridge 3 corresponds to an adjacent PCB unit plate 2. Figure 1 In the illustrated embodiment, the unit plate optical positioning point 4 corresponding to the first PCB unit plate 2 in the first column is located on the connecting bridge 3 at the upper left corner of the first PCB unit plate 2, the unit plate optical positioning point 4 corresponding to the second PCB unit plate 2 in the first column is located on the connecting bridge 3 at the upper left corner of the second PCB unit plate 2, and the other PCB unit plates are similar.

[0041] According to the above technical means, the unit plate optical positioning point corresponding to the PCB unit plate on the connecting bridge can be used for precise positioning of the scrap PCB unit plate on the entire splicing structure by the chip mounter. In this way, the chip mounter can automatically give up mounting components on the scrap PCB unit plate when working.

[0042] In some possible embodiments, the process edge is also provided with a splicing plate optical positioning point 5. The splicing plate optical positioning point is used for accurately positioning the coordinates of the components on the PCBA by the chip mounter.

[0043] In some possible embodiments, the process edge is also provided with a jig positioning hole. The jig positioning hole is used for positioning the splicing plate by the jig.

[0044] In some possible embodiments, the plurality of PCB unit plate arrays are arranged in the hollow area.

[0045] In some possible embodiments, the hollow groove 6 is a milled groove.

[0046] In some possible embodiments, the PCB unit plate 2 is provided with a half edge electroplated pin 2-1 around the periphery. A certain spacing is reserved between each half edge electroplated pin 2-1 around the periphery of the PCB unit plate 2, so as to avoid short circuit between the pins. A certain spacing is also reserved between the half edge electroplated pin 2-1 and the connecting bridge 3, so as to avoid damage to the half edge electroplated pin during milling processing.

[0047] The optional implementation manners of the embodiments of the present application are described in detail above in combination with the drawings, however, the embodiments of the present application are not limited to the specific details in the above implementation manners, and various simple modifications can be made to the technical solutions of the embodiments of the present application within the technical concept of the embodiments of the present application, and these simple modifications all belong to the protection scope of the embodiments of the present application.

[0048] In addition, it should be noted that each specific technical feature described in the above specific implementation manners can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combination manners are not described again in the embodiments of the present application.

[0049] Those skilled in the art can understand that all or part of the steps of the methods described in the above embodiments can be completed by a program instructing related hardware. The program is stored in a storage medium and includes a plurality of instructions for causing a single-chip microcomputer, a chip or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and various program code storage media.

[0050] In addition, various different implementation manners of the embodiments of the present application can also be combined in any manner, as long as they do not deviate from the technical concept of the embodiments of the present application, and they should also be considered as disclosed contents of the embodiments of the present application.

Claims

1. A PCBA panel structure for improving production efficiency, characterized in that, The panel structure includes a process edge (1) and multiple PCB unit boards (2). The process edge (1) forms a hollow area, and the multiple PCB unit boards (2) are arranged in the hollow area. A cutout groove (6) is formed between any two adjacent PCB unit boards (2) and between any adjacent PCB unit board (2) and the process edge (1). The top corner of each PCB unit board (2) is connected to the top corner or process edge (1) of the adjacent PCB unit board (2) through a connecting bridge (3). The connecting bridge (3) includes a first wide part (3-1), a narrow part (3-2), and a second wide part (3-3) connected sequentially along the milling direction. The narrow part (3-2) is parallel to the milling direction, and the width of the narrow part (3-2) is less than or equal to the width of the milling cutter in the milling process. The first wide part (3-1) and the second wide part (3-3) are used to connect the top corner or process edge (1) of the PCB unit board (2).

2. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The width of the narrow portion (3-2) is less than or equal to the process value.

3. The PCBA panel structure for improving production efficiency according to claim 2, characterized in that, The process value is equal to the width of the milling cutter minus the positioning tolerance in the milling process.

4. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The connecting bridge (3) is also provided with unit plate optical positioning points (4).

5. The PCBA panel structure for improving production efficiency according to claim 4, characterized in that, Each unit board optical positioning point (4) on the connecting bridge (3) corresponds to an adjacent PCB unit board (2).

6. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The process edge (1) is also provided with a panel optical positioning point (5).

7. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The process edge (1) is also provided with a fixture positioning hole.

8. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The multiple PCB unit boards (2) are arranged in an array within the hollow area.

9. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The hollowed-out groove (6) is a milled groove.

10. The PCBA panel structure for improving production efficiency according to claim 1, characterized in that, The PCB unit board (2) is provided with half-sided electroplated pins (2-1) around its perimeter.

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