PCB (Printed Circuit Board) welding flaw detection equipment

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) detection, in particular to PCB welding defect detection equipment. According to the technical scheme, the PCB detection device comprises a detection table and a supporting table, and further comprises a detection mechanism installed on the supporting table and used for detecting a PCB; the placement clamping table is arranged on the upper surface of the detection table and located under the detection mechanism, the interior of the placement clamping table is fixedly connected with a supporting plate for placing the PCB, and a plurality of telescopic holes are formed in the supporting plate; and the telescopic mechanism is inserted into the placement clamping table in a sliding drawing manner and is used for penetrating through the telescopic hole to clamp the PCBs with different sizes. According to the utility model, the detection mechanism, the placement clamping table, the support plate, the telescopic hole, the telescopic mechanism and other structures are matched, and the plurality of positioning conical insertion rods can be clamped into holes in PCBs with different sizes after being lifted, so that the placement clamping table has better adaptability. In this way, the same detection device can process various PCBs, and the device does not need to be replaced frequently.

Description

Technical Field

[0001] This utility model relates to the field of PCB board inspection technology, and in particular to a PCB board soldering defect detection device. Background Technology

[0002] A PCB (Printed Circuit Board) is a basic circuit board used to support and connect electronic components. It is typically composed of one or more thin sheets of non-conductive material, such as fiberglass, epoxy resin, or polyimide, coated with a conductive material. These conductive materials form a circuit pattern for connecting electronic components, such as resistors, capacitors, and integrated circuits, to fulfill the circuit design functions. After soldering, PCBs usually need to pass through defect inspection equipment to reduce the risk of product degradation or failure due to soldering defects, thereby improving the overall reliability and lifespan of the product. Current defect inspection equipment includes main structure inspection tables, which typically have specific protrusions to hold the PCB in place. However, the positions of these protrusions are only suitable for PCBs of specific sizes or models. Therefore, when different sizes or models of PCBs need to be inspected during production, additional equipment is required to accommodate different PCB sizes, leading to frequent equipment changes and increased production and time costs. Utility Model Content

[0003] The purpose of this invention is to address the problem that existing defect inspection equipment, including a main structure inspection table, typically has specific protrusions on the inspection table to hold the PCB board in place. However, the position of these protrusions is only suitable for PCB boards of specific sizes or models. Consequently, additional equipment is needed during the production process to accommodate PCB boards of different sizes, leading to frequent equipment changes and increased production and time costs. This invention proposes a PCB board soldering defect inspection device.

[0004] The technical solution of this utility model is as follows: a PCB board soldering defect detection device, including a detection table and a support table, and further including: a detection mechanism installed on the support table to detect the PCB board; a placement card table disposed on the upper surface of the detection table directly below the detection mechanism, the placement card table having a support plate for placing the PCB board fixedly connected inside, the support plate having multiple telescopic holes; and a telescopic mechanism that slides and inserts into the placement card table to pass through the telescopic holes and hold PCB boards of different sizes.

[0005] Optionally, the telescopic mechanism includes a sliding groove formed on the card placement platform, a sliding block is slidably connected inside the sliding groove, and a plurality of connecting strips are fixedly connected at one end of the sliding block that is inserted into the card placement platform. The connecting strips are located directly below a plurality of telescopic holes in a horizontal row. A plurality of L-shaped support plates corresponding to the connecting strips are fixedly connected to the lower surface of the support plate, and a plurality of return springs corresponding to the telescopic holes are fixedly connected to the upper surface of the L-shaped support plates.

[0006] Optionally, the telescopic mechanism further includes a transverse stop rod fixedly connected to the top of the return spring. A U-shaped bracket is fixedly connected to the upper surface of the transverse stop rod. A positioning conical insert rod that is inserted into the corresponding upper telescopic hole is fixedly connected to the top of the U-shaped bracket. Multiple L-shaped blocks arranged linearly and pressing against the corresponding transverse stop rod to compress the return spring are fixedly connected to the upper surface of the connecting strip.

[0007] Optionally, the L-shaped locking block has an arc-shaped abutment at the end away from the connecting strip that locks the transverse abutment.

[0008] Optionally, the end of the positioning tapered insert that is inserted into the telescopic hole is provided with a guide hemispherical block.

[0009] Optionally, a handle is fixedly connected to one end of the insertion block that is dislodged from the card holder.

[0010] Optionally, a cylinder is fixedly connected to the support platform, and the piston rod of the cylinder is fixedly connected to the detection mechanism.

[0011] In summary, this application includes at least one of the following beneficial technical effects of PCB board soldering defect detection equipment:

[0012] This invention utilizes a combination of a testing mechanism, a card placement platform, a support plate, telescopic holes, and a telescopic mechanism. Multiple positioning conical rods can be raised and lowered to engage with holes on PCBs of different sizes, thus giving the card placement platform better adaptability. In this way, a single testing device can process various PCBs without frequent equipment changes. Attached Figure Description

[0013] Figure 1 A structural schematic diagram of a PCB board soldering defect detection device according to this utility model is provided;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 for Figure 2 A partial structural diagram of the insertion / retraction mechanism.

[0016] Reference numerals in the attached drawings: 1. Testing table; 2. Support table; 3. Cylinder; 4. Testing mechanism; 5. Placement plate; 51. Insertion block; 52. Handle; 53. Connecting strip; 54. L-shaped locking block; 55. Arc-shaped abutment block; 555. Insertion groove; 6. Support plate; 61. Telescopic hole; 62. L-shaped support plate; 63. Return spring; 64. Transverse abutment rod; 65. U-shaped bracket; 66. Positioning conical insertion rod; 67. Guide hemispherical block. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical 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.

[0023] Example

[0024] like Figure 1-3 As shown, the present invention proposes a PCB board soldering defect detection device, including a detection table 1 and a support table 2. A cylinder 3 is fixedly connected to the support table 2, and the piston rod of the cylinder 3 is fixedly connected to the detection mechanism 4. The device also includes: a detection mechanism 4 installed on the support table 2 for detecting PCB boards; a placement plate 5 located on the upper surface of the detection table 1 directly below the detection mechanism 4, a support plate 6 for placing PCB boards is fixedly connected inside the placement plate 5, and the support plate 6 has several telescopic holes 61; and a telescopic mechanism that slides and inserts into the placement plate 5 to pass through the telescopic holes 61 and hold PCB boards of different sizes.

[0025] Furthermore, the telescopic mechanism includes a sliding groove 555 formed on the card placement platform 5. When the sliding block 51 moves to its limit distance along the sliding groove 555 towards the card placement platform 5, it is held in place by the L-shaped locking block 54 of the connecting strip 53 against the inner wall of the card placement platform 5. The sliding block 51 is slidably connected inside the sliding groove 555. A handle 52 is fixedly connected to one end of the sliding block 51 that is dislodged from the card placement platform 5. Several connecting strips 53 are fixedly connected to one end of the sliding block 51 that is inserted into the card placement platform 5. The connecting strips 53 are located directly below several telescopic holes 61 in a horizontal row. Several L-shaped support plates 62 corresponding to the connecting strips 53 are fixedly connected to the lower surface of the support plate 6. Several return springs 63 corresponding to the telescopic holes 61 are fixedly connected to the upper surface of the L-shaped support plates 62. The function of the return springs 63 is to allow the positioning conical insertion rod 66 to automatically pass through the telescopic hole 61 and insert into the hole on the PCB board.

[0026] Furthermore, the telescopic mechanism also includes a transverse abutment 64 fixedly connected to the top of the return spring 63. A U-shaped bracket 65 is fixedly connected to the upper surface of the transverse abutment 64. A positioning conical insert 66 is fixedly connected to the top of the U-shaped bracket 65 and inserted into the corresponding upper telescopic hole 61. The end of the positioning conical insert 66 inserted into the telescopic hole 61 is provided with a guide hemispherical block 67. Several L-shaped blocks 54 arranged linearly are fixedly connected to the upper surface of the connecting bar 53 and abut against the corresponding transverse abutment 64 to compress the return spring 63. The end of the L-shaped block 54 away from the connecting bar 53 is provided with an arc-shaped abutment 55 that holds the transverse abutment 64. When the insertion block 51 moves several connecting bars 53 to the limit position, the arc-shaped abutment 55 is still holding the transverse abutment 64. Its function is to prevent the L-shaped block 54 from moving towards the transverse abutment 64 and failing to return to its original position.

[0027] In this embodiment, when a PCB board soldering defect detection device is required, such as Figure 1As shown, the soldered PCB board is placed on the support plate 6 inside the placement tray 5, and appropriate pressure is applied to the support plate 6 to ensure that the PCB board is attached to the support plate 6 without being damaged. Then, simply pull the handle 52 outward from the placement tray 5 to move the insertion block 51. The insertion block 51 then moves multiple connecting strips 53 simultaneously, and the moving connecting strips 53 move L-shaped locking blocks 54, causing the arc-shaped abutments 55 on the multiple L-shaped locking blocks 54 to lock the transverse abutment rod 64. At this time, the transverse abutment rod 64, through the elastic thrust of the return spring 63, causes the transverse abutment rod 64 to move the U-shaped bracket 65 and the positioning conical insert rod 66 in sequence. This causes the positioning conical insert rod 66 to drive the guide hemisphere block 67 through the telescopic hole 61 and into the hole on the PCB board. The hole through the PCB board is blocked by the PCB board, preventing it from passing through the telescopic hole 61. Finally, the positioning conical inserts 66 passing through the telescopic holes 61 along the edge of the PCB board will conform to the shape and size of the PCB board and firmly hold it in place. Then, the handle 52 can be released, and the insertion block 51 will drive multiple connecting strips 53 and their L-shaped locking blocks 54 to abut against the corresponding transverse abutments 64. When it is necessary to retract all the positioning conical inserts 66 through the telescopic holes 61 into the placement platform 5, simply push the insertion block 51 into the placement platform 5. At this time, the arc-shaped abutments 55 on the L-shaped locking blocks 54 abut against the transverse abutments 64, allowing the telescopic mechanism to return to its original position. The same operation applies when replacing PCB boards of different sizes, and will not be elaborated further here.

[0028] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PCB board soldering defect detection device, comprising a detection table (1) and a support table (2), characterized in that, Also includes: A testing mechanism (4) installed on the support platform (2) to test the PCB board; A card placement platform (5) is set on the upper surface of the testing station (1) directly below the testing mechanism (4). A support plate (6) for placing PCB boards is fixedly connected inside the card placement platform (5). Multiple telescopic holes (61) are opened on the support plate (6). The sliding insertion mechanism is used to pass through the telescopic hole (61) and lock the PCB board of different sizes in the card placement platform (5).

2. The PCB board soldering defect detection equipment according to claim 1, characterized in that, The telescopic mechanism includes a sliding groove (555) on the card placement platform (5). A sliding block (51) is slidably connected inside the sliding groove (555). One end of the sliding block (51) inserted into the card placement platform (5) is fixedly connected to a plurality of connecting strips (53) arranged linearly and fixedly connected in sequence. The connecting strips (53) are located directly below a plurality of telescopic holes (61) in a horizontal row. A plurality of L-shaped support plates (62) corresponding to the connecting strips (53) are fixedly connected to the lower surface of the support plate (6). A plurality of return springs (63) corresponding to the telescopic holes (61) are fixedly connected to the upper surface of the L-shaped support plates (62).

3. The PCB board soldering defect detection equipment according to claim 2, characterized in that, The telescopic mechanism also includes a transverse abutment (64) fixedly connected to the top of the return spring (63). A U-shaped bracket (65) is fixedly connected to the upper surface of the transverse abutment (64). A positioning conical insert (66) that is inserted into the corresponding upper telescopic hole (61) is fixedly connected to the top of the U-shaped bracket (65). A plurality of L-shaped blocks (54) arranged linearly and pressing against the corresponding transverse abutment (64) to compress the return spring (63) are fixedly connected to the upper surface of the connecting strip (53).

4. The PCB board soldering defect detection equipment according to claim 3, characterized in that, The L-shaped locking block (54) has an arc-shaped abutment (55) at the end away from the connecting bar (53) to lock the transverse abutment (64).

5. The PCB board soldering defect detection equipment according to claim 3, characterized in that, The end of the positioning tapered insert (66) inserted into the telescopic hole (61) is provided with a guide hemispherical block (67).

6. The PCB board soldering defect detection equipment according to claim 2, characterized in that, The end of the insertion block (51) that is dislodged from the card holder (5) is fixedly connected to a handle (52).

7. The PCB board soldering defect detection equipment according to claim 1, characterized in that, A cylinder (3) is fixedly connected to the support platform (2), and the piston rod of the cylinder (3) is fixedly connected to the detection mechanism (4).

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