Traceless repairing device for open circuit notch of PCB (Printed Circuit Board)
By introducing positioning components and push-pull structures into the PCB repair device, the problem of position offset during PCB repair is solved, improving the repair effect and reducing costs.
Patent Information
- Application Number
- CN202422179951.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In the prior art, the PCB cannot be effectively clamped and fixed during the repair process, resulting in a position shift of the PCB, which affects the repair effect of the marking and oil replenishing processes. It is also necessary to set up multiple clamping components in multiple repair mechanisms to increase costs.
A PCB open circuit notch markless repair device including positioning components is designed. By providing a slidably connected clamping plate and push-pull structure at the top of the conveyor, a micro motor drive screw drives the clamping plate to move, thereby achieving stable clamping of the PCB and avoiding position deviation.
The stable clamping of the PCB during the repair process is achieved, reducing position offset phenomenon, improving repair effect, and no need to set up multiple clamping components in each repair mechanism, reducing costs.
Smart Images
Figure CN223125084U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB trace - free repair, and particularly to a device for trace - free repair of open - circuit gaps on a PCB. Background Art
[0002] A PCB (printed circuit board) refers to a printed board that forms inter - point connections and printed components on a general substrate. It is a support for electronic components and a carrier for the electrical interconnection of electronic components. In recent years, due to the continuous increase in the cost of the main material of the PCB, the improvement of the inner - layer yield directly affects the savings in production costs. The process of manufacturing inner - layer circuits is complex, with a long process and many workstations. For high - precision circuits, short - circuits or open - circuits are easily caused by slight carelessness, resulting in the scrapping of defective products. For PCBs that have been etched and are defective, they are boards that can be repaired in consumer electronics products.
[0003] Therefore, it is necessary to repair the open - circuit gaps of the PCB. The process for trace - free repair of the inner and outer layers of the PCB is as follows: marking defective points → applying silver paste → filling alloy wires → brush plating → baking → AOI re - inspection → reliability testing, thus completing the trace - free repair of the PCB. Since the PCB is usually transported to the marking position, silver - paste application position, etc. for repair in sequence by a conveyor during the repair process, there is still a problem that it is inconvenient to clamp and fix the PCB when the conveyor transports the PCB to the repair position, resulting in the phenomenon that the position of the PCB is easily offset during operations such as marking and silver - paste application, which affects the repair effect of operations such as marking and silver - paste application. Summary of the Utility Model
[0004] In view of the deficiencies of the prior art, the utility model provides a device for trace - free repair of open - circuit gaps on a PCB, which has the advantages of being convenient for clamping and fixing, etc., and solves the problem of inconvenient clamping and fixing.
[0005] To achieve the above object, the utility model provides the following technical solution: A device for trace - free repair of open - circuit gaps on a PCB, including a conveyor, a trace - free repair component is fixed at the top of the conveyor, an AOI detector is fixed at the top of the conveyor, a placement plate is placed at the top of the conveyor, and a positioning component is arranged inside the placement plate;
[0006] The positioning component includes two clamping plates that are slidably connected to the top of the placement plate. Rubber pads are fixed on the opposite sides of the two clamping plates. Two connecting blocks are fixed at the lower ends of the two clamping plates. A moving plate is fixed at the lower ends of the two connecting blocks on the same side. Support blocks are fixed at the front and rear ends of the moving plate. The positioning component further includes a push - pull structure arranged on the opposite sides of the two moving plates.
[0007] Further, two sliding holes are opened at the top of the placement plate for two groups of connecting blocks to penetrate through its interior.
[0008] Further, sliding grooves for allowing the support blocks to slide on the inner walls thereof are formed in the left and right walls of the inner cavity of the placement plate.
[0009] Further, the pushing and pulling structure includes a push rod hinged to the opposite sides of the two moving plates. The other end of the push rod is hinged to a moving block. A screw rod is threadedly connected inside the moving block. A transmission structure is provided on the outer surfaces of the two screw rods. The pushing and pulling structure further includes a micro motor fixed to the bottom of the inner cavity of the placement plate. Gears are fixed to the output end of the micro motor and the outer surface of the front screw rod.
[0010] Further, threaded holes for allowing the screw rods to penetrate through their interiors are formed in the opposite sides of the two moving blocks. The left and right ends of the screw rods are rotatably connected to the left and right walls of the inner cavity of the placement plate through bearings.
[0011] Further, the two screw rods are located below the two moving plates, the transmission structure is located below the moving plates, and the micro motor is located directly below the front screw rod.
[0012] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0013] For the PCB open - circuit notch trace - less repair device, by providing a positioning component, the PCB during transportation can be clamped and fixed, so that when the PCB is transported to the repair end such as marking and oil replenishment for repair, the repair can be carried out stably, in order to reduce the phenomenon that the position of the PCB is prone to shift during processes such as marking and oil replenishment, which affects the repair effect of processes such as marking and silver oil replenishment. And there is no need to be provided with a plurality of clamping components in the marking mechanism, silver oil replenishment mechanism, alloy wire replenishment mechanism, electroplating mechanism and baking mechanism, which can reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a schematic structural diagram of the placement plate and the clamping plate of the present utility model;
[0016] Figure 3 is a top - view structural diagram of the connecting plate and the moving plate of the present utility model.
[0017] In the figure: 1 conveyor, 2 trace - less repair component, 3 AOI detector, 4 placement plate, 41 clamping plate, 42 rubber pad, 43 connecting block, 44 moving plate, 45 support block, 46 push rod, 47 moving block, 48 screw rod, 49 gear, 410 micro motor, 411 transmission structure. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figures 1 to 2 , a device for repairing PCB open circuit notches without traces in this embodiment includes a conveyor 1. A traceless repair component 2 is fixed at the top of the conveyor 1. An AOI detector 3 is fixed at the top of the conveyor 1. A placement plate 4 is placed at the top of the conveyor 1, and the front and rear walls of the placement plate 4 are in contact with the front and rear walls inside the conveyor 1, enabling the conveyor 1 to balance the conveyance of the placement plate 4 and making it difficult for the placement plate 4 to translate. A positioning component is provided inside the placement plate 4.
[0020] In addition, the traceless repair component 2 is composed of a marking mechanism, a silver oil filling mechanism, an alloy wire filling mechanism, a brush plating mechanism, and a baking mechanism.
[0021] Please refer to Figures 2 to 3 , the positioning component in this embodiment includes two clamping plates 41 slidably connected to the top of the placement plate 4. Rubber pads 42 are fixed on the opposite sides of the two clamping plates 41. Two connecting blocks 43 are fixed at the lower ends of the two clamping plates 41. A moving plate 44 is fixed at the lower ends of the two connecting blocks 43 on the same side. Support blocks 45 are fixed at the front and rear ends of the moving plate 44. The positioning component further includes a pushing and pulling structure arranged on the opposite sides of the two moving plates 44.
[0022] Among them, two sliding holes for the two groups of connecting blocks 43 to penetrate through its interior are opened at the top of the placement plate 4, so that the connecting blocks 43 can be connected and fixed to the clamping plates 41, enabling the moving plate 44 to drive the clamping plates 41 to move on the top of the placement plate 4 through the connecting blocks 43.
[0023] Moreover, sliding grooves for the support blocks 45 to slide on their inner walls are opened on the left and right walls of the inner cavity of the placement plate 4, and the moving plate 44 can stably move inside the placement plate 4 through the two support blocks 45 in the same group.
[0024] Please refer to Figure 3 , the pushing and pulling structure in this embodiment includes a push rod 46 hingedly connected to the opposite sides of the two moving plates 44. The other end of the push rod 46 is hingedly connected to a moving block 47. A screw rod 48 is threadedly connected inside the moving block 47. A transmission structure 411 is provided on the outer surfaces of the two screw rods 48. The pushing and pulling structure further includes a micro motor 410 fixed to the bottom of the inner cavity of the placement plate 4. Gears 49 are fixed to the output end of the micro motor 410 and the outer surface of the front screw rod 48.
[0025] Secondly, threaded holes for the screw rods 48 to pass through their interiors are provided on the opposite sides of the two moving blocks 47. The screw rods 48 can drive the moving blocks 47 to move within the placement plate 4 through the threaded holes. The left and right ends of the screw rods 48 are rotatably connected to the left and right walls of the inner cavity of the placement plate 4 through bearings, enabling the screw rods 48 to rotate stably within the placement plate 4 so that they can stably drive the moving blocks 47 to move.
[0026] At the same time, the two screw rods 48 are located below the two moving plates 44, and the transmission structure 411 is located below the moving plates 44, so that the two screw rods 48 and the transmission structure 411 are both located at the lower ends of the two moving plates 44, preventing the transmission structure 411 and the two moving plates 44 from affecting each other's operations. The micro motor 410 is located directly below the front screw rod 48.
[0027] It should be noted that the conveyor 1, the traceless repair component 2, the AOI inspection machine 3, and the transmission structure 411 are all well-known to the public in the prior art, and the control method is controlled by the control terminal, which is also well-known to the public in the prior art. Also, the existing power connection technology and power supply belong to the common knowledge in this field, and those skilled in the art can implement it through simple programming. Therefore, the working principles, circuit connections, and control methods will not be elaborated herein.
[0028] The working principle of the above embodiment is as follows:
[0029] During use, the PCB is placed on the placement plate 4. The conveyor 1 conveys the PCB through the placement plate 4. The output end of the micro motor 410 drives the lower gear 49 to rotate, causing the lower gear 49 to mesh with the upper gear 49. Thus, the upper gear 49 can drive the front screw rod 48 to rotate. The front screw rod 48 drives the other screw rod 48 to rotate through the transmission structure 411. Then, the two screw rods 48 can simultaneously drive the two moving blocks 47 to move to the left. While the two moving blocks 47 are moving, they can push the front and rear moving plates 44 to move relative to each other through the two push rods 46. As a result, the two moving plates 44 can drive the two clamping plates 41 to move relative to each other at the top of the placement plate 4 through the two sets of connecting blocks 43, so that the two clamping plates 41 can clamp and fix the PCB on the placement plate 4. When the PCB is conveyed to the repair ends such as marking and oil replenishment for repair processing, the repair processing can be carried out stably, reducing the phenomenon of easy PCB position deviation during processes such as marking and oil replenishment, which may affect the repair effects of processes such as marking and silver oil replenishment. Moreover, there is no need to be provided with multiple clamping components in the marking mechanism, silver oil replenishment mechanism, alloy wire replenishment mechanism, electroplating mechanism, and baking mechanism, which can reduce costs.
[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.
[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for repairing the trace-free open gap of a PCB, comprising a conveyor (1), characterized in that: The top end of the conveyor (1) is fixedly provided with a trace-free repair component (2), the top end of the conveyor (1) is fixedly provided with an AOI detector (3), a placement plate (4) is placed on the top end of the conveyor (1), and a positioning component is arranged inside the placement plate (4); The positioning component includes two clamping plates (41) slidably connected to the top end of the placement plate (4). Rubber pads (42) are fixedly arranged on one side of the two clamping plates (41) facing each other. Two connecting blocks (43) are fixedly arranged at the lower ends of the two clamping plates (41). A moving plate (44) is fixedly arranged at the lower ends of the two connecting blocks (43) on the same side. Support blocks (45) are fixedly arranged at the front and rear ends of the moving plate (44). The positioning component further includes a pushing and pulling structure arranged on the opposite sides of the two moving plates (44).
2. The a PCB open - circuit notch trace - less repair device according to claim 1, characterized in that: Two sliding holes for allowing two groups of connecting blocks (43) to penetrate out of the inside thereof are formed in the top end of the placement plate (4).
3. The device for seamlessly repairing an open circuit gap in a PCB according to claim 1, characterized in that: Chute grooves for allowing the support blocks (45) to slide on the inner walls thereof are formed in the left and right walls of the inner cavity of the placement plate (4).
4. The device for seamlessly repairing an open circuit gap in a PCB according to claim 1, characterized in that: The pushing and pulling structure includes a push rod (46) hingedly connected to the opposite sides of the two moving plates (44). The other end of the push rod (46) is hingedly connected to a moving block (47). A screw rod (48) is threadedly connected to the inside of the moving block (47). A transmission structure (411) is arranged on the outer surface of the two screw rods (48). The pushing and pulling structure further includes a micro motor (410) fixedly arranged at the bottom of the inner cavity of the placement plate (4). Gears (49) are fixedly arranged at the output end of the micro motor (410) and on the outer surface of the front screw rod (48).
5. A device for seamless repair of open circuit notches on a PCB according to claim 4, characterized in that: Threaded holes for allowing the screw rods (48) to penetrate out of the inside thereof are formed in the opposite sides of the two moving blocks (47). The left and right ends of the screw rod (48) are rotatably connected to the left and right walls of the inner cavity of the placement plate (4) through bearings.
6. The PCB open - circuit notch seamless repair device according to claim 4, wherein: The two screw rods (48) are located below the two moving plates (44), the transmission structure (411) is located below the moving plates (44), and the micro motor (410) is located directly below the front screw rod (48).