Blocking hole detection tool
By designing a hole-blocking inspection fixture consisting of a support frame, drive shaft, storage compartment, position adjustment assembly, and clamping assembly, the problem of multiple adjustments in traditional inspection was solved, enabling rapid positioning and clamping of PCB boards and improving inspection efficiency.
Patent Information
- Application Number
- CN202423227008.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional hole-clogging inspection fixtures require multiple adjustments to the fixed position when inspecting large-size PCBs, resulting in low inspection efficiency and making it impossible to perform large-volume operations.
A hole-clogging detection fixture was designed, comprising a support frame, a drive shaft, a storage compartment, a position adjustment component, and a clamping component. The position adjustment component enables horizontal and vertical adjustment of the PCB board, and the clamping component provides quick clamping, simplifying the PCB board fixing process.
It improves testing efficiency, reduces testing time, simplifies operation procedures, and is suitable for rapid testing of large batches of PCB boards.
Smart Images

Figure CN223841948U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hole plugging detection, and in particular to a hole plugging detection tooling. Background Technology
[0002] A hole plugging inspection fixture is a device specifically designed to inspect the holes on a PCB after wave soldering for blockage. Because of solder overflow and blockage after wave soldering, and because the terminals are very small and not visible to the naked eye, X-ray inspection is required. However, X-ray inspection increases production and maintenance costs. Traditional hole plugging inspection fixtures place the PCB above an LED light and determine blockage by observing whether the holes transmit light. However, this device has limitations regarding PCB size; for larger PCBs, multiple adjustments to the fixed position are needed to thoroughly inspect all holes, making it unsuitable for large-volume production. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a hole-blocking detection fixture, which solves the technical problem of requiring multiple adjustments during the detection process and achieves the goal of improving detection efficiency.
[0004] To solve the above technical problems, this utility model provides the following technical solution: a hole plugging detection fixture, including a support frame as a support base, a drive shaft rotatably connected to both sides of the support frame, a storage compartment fixedly connected between the two drive shafts, an entry window through one side of the storage compartment, a guide groove through one end of the outer side of the storage compartment, a receiving groove through the top of the guide groove, a position adjustment component for adjusting the position of the PCB board slidably connected to the inner side of the storage compartment, and a clamping component for clamping the PCB board installed on the position adjustment component;
[0005] The position adjustment assembly includes a guide slider slidably connected inside the guide groove. A connecting tube is fixedly connected to one end of the guide slider near the guide groove. A transverse adjustment rod is slidably connected to the inside of the connecting tube. A fixed seat is fixedly connected to the end of the transverse adjustment rod located inside the storage compartment. A push-pull support plate is fixedly connected to the opposite end of the guide slider and the connecting tube via a bracket. A push-pull groove is opened at the top of the push-pull support plate. An extension slide rod that is slidably connected to the push-pull groove is fixedly connected to the end of the fixed seat away from the guide slider.
[0006] Preferably, the connecting tube is slidably connected to the guide slider and the transverse adjusting rod in the guide groove and the receiving groove, respectively.
[0007] Preferably, the clamping assembly includes buffer grooves equidistantly spaced on the fixed base, a stabilizing slide rod fixedly connected to the inner side of the buffer groove, a return spring sleeved on the outer side of the stabilizing slide rod, a connecting frame slidably connected to the outer side of the stabilizing slide rod above the return spring, and a clamping frame fixedly connected to the bottom end of the connecting frame.
[0008] Preferably, a light-transmitting lamp is installed in the middle of the bottom inner side of the storage compartment, and an observation tube is fixedly connected to the middle of the top of the storage compartment, with the observation tube corresponding to the light-transmitting lamp.
[0009] Preferably, both drive shafts are helically connected to an angle limiter on their outer sides, and the angle limiter is a bolt limiter.
[0010] Preferably, the maximum length of the lateral adjusting rod extending out of the connecting pipe is greater than the opening length of the push-pull slide.
[0011] By employing the above technical solution, this utility model provides a hole plugging detection fixture, which has at least the following beneficial effects:
[0012] 1. Due to the setting of the position adjustment component, this utility model can adjust and move the clamped PCB board horizontally and vertically without adjusting the position of the clamped PCB board, thereby reducing the time required for the entire inspection process and improving the overall processing efficiency.
[0013] 2. Due to the design of the clamping components, this utility model can quickly clamp and fix the PCB board. When performing large-scale testing operations, it can avoid the prolongation of testing time caused by the cumbersome clamping process. In addition, the simple clamping process can also reduce the operation difficulty of the testing fixture, thereby improving the operator's learning speed. Attached Figure Description
[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0015] In the attached diagram:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the drive shaft mounting structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the installation structure of the lateral adjustment rod of this utility model;
[0019] Figure 4 This is a schematic diagram of the mounting structure of the fixed base of this utility model.
[0020] In the diagram: 1. Support frame; 2. Drive shaft; 3. Storage compartment; 4. Through window; 5. Guide slide; 6. Storage slide;
[0021] 7. Position adjustment assembly; 71. Guide slider; 72. Connecting tube; 73. Lateral adjustment rod; 74. Fixing base; 75. Push-pull support plate; 76. Push-pull slide groove; 77. Extension slide rod;
[0022] 8. Clamping assembly; 81. Buffer slide; 82. Stabilizing slide bar; 83. Return spring; 84. Connecting frame; 85. Clamping frame; 9. Transmitting light; 10. Observation tube; 11. Angle limiter. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1
[0025] Traditional hole-clogging inspection fixtures place the PCB board above an LED light during inspection, determining whether the holes on the PCB are clear by observing whether light passes through. However, this device has limitations regarding PCB size. When inspecting larger PCBs, multiple adjustments to the fixed position are required to thoroughly inspect all the holes on the PCB, making it unsuitable for large-volume inspections. Please refer to [reference needed]. Figures 1-4 This embodiment provides a hole-clogging detection fixture, solving the technical problem of requiring multiple adjustments during the detection process. The device includes a support frame 1 serving as a support base. Both sides of the support frame 1 are rotatably connected to drive shafts 2. A storage chamber 3 is fixedly connected between the two drive shafts 2. A through-hole 4 is provided on one side of the storage chamber 3, and a guide groove 5 is provided at one end of the outer side of the storage chamber 3. A receiving groove 6 is provided above the guide groove 5. A position adjustment component 7 for adjusting the position of the PCB board is slidably connected to the inner side of the storage chamber 3. A clamping component 8 for holding the PCB board is installed on the position adjustment component 7. The PCB board is clamped by the clamping component 8, and then the position of the clamped PCB board is adjusted by the position adjustment component 7.
[0026] In traditional hole-plugging inspection, when inspecting large PCBs, multiple adjustments are required to completely complete the inspection. To solve this problem, a position adjustment component 7 is proposed. The position adjustment component 7 includes a guide slider 71 slidably connected inside the guide groove 5. A connecting tube 72 is fixedly connected to one end of the guide slider 71 near the guide groove 5. A transverse adjustment rod 73 is slidably connected to the inside of the connecting tube 72. A fixing seat 74 is fixedly connected to the end of the transverse adjustment rod 73 inside the storage compartment 3. A push-pull support plate 75 is fixedly connected to the opposite end of the guide slider 71 and the connecting tube 72 via a bracket. A push-pull groove 76 is opened at the top of the push-pull support plate 75. An extension rod 77 that slidably connects to the push-pull groove 76 is fixedly connected to the end of the fixing seat 74 away from the guide slider 71. The maximum length of the transverse adjustment rod 73 extending out of the connecting tube 72 is greater than the opening length of the push-pull groove 76.
[0027] To provide stability and guidance during the sliding of the position adjustment assembly 7, the connecting tube 72 is slidably connected to the guide slider 71 and the lateral adjustment rod 73 within the guide groove 5 and the receiving groove 6, respectively.
[0028] In traditional hole-plugging inspection fixtures, the process of fixing the PCB board is very complicated, which slows down the overall inspection efficiency of the fixture. The clamping assembly 8 includes buffer grooves 81 that are equidistantly opened on the fixed base 74. A stabilizing slide rod 82 is fixedly connected to the inner side of the buffer groove 81. A return spring 83 is sleeved on the outer side of the stabilizing slide rod 82. A connecting frame 84 is slidably connected to the outer side of the stabilizing slide rod 82 above the return spring 83. A clamping frame 85 is fixedly connected to the bottom end of the connecting frame 84.
[0029] To determine whether a hole on a PCB is open or blocked by detecting the light transmittance of the hole, a light-transmitting lamp 9 is installed in the middle of the bottom inner side of the storage compartment 3, and an observation tube 10 is fixedly connected to the middle of the top of the storage compartment 3, with the observation tube 10 corresponding to the light-transmitting lamp 9.
[0030] To allow for adjustment of the angle of the storage compartment 3 and facilitate observation by the user, angle limiters 11 are screwed onto the outer sides of both drive shafts 2. The angle limiters 11 are bolt limiters.
[0031] Example 2
[0032] Based on Example 1, which solved the technical problem of requiring multiple adjustments during the detection process, Example 1 still suffers from the cumbersome PCB clamping process. Combined with... Figures 1-4As shown, the specific implementation process is as follows: During the inspection operation, the operator clamps and fixes the PCB board using the clamping assembly 8. Then, the operator inserts the push-pull support plate 75 into the storage compartment 3 through the through-window 4 at one end of the storage compartment 3. During this process, the guide slider 71 connected to the push-pull support plate 75 is slidably connected inside the guide groove 5, while the connecting tube 72 connected to the guide slider 71 is slidably connected inside the receiving groove 6. During this process, the operator moves the clamped PCB board deeper into the storage compartment 3. The operator can push and pull the horizontal adjustment rod 73, thereby moving the fixed seat 74 connected to it. The fixed seat 74 moves through the extension slide rod 77 at the end away from the horizontal adjustment rod 73, and the extension slide rod 77 moves inside the push-pull groove 76. This allows the clamped PCB board to move horizontally and vertically, enabling adjustment without re-clamping the PCB board.
[0033] During clamping, the operator pulls down the clamping frame 85, which moves the connecting frame 84 connected to it. The PCB board is then placed on top of the clamping frame 85. After releasing the clamping frame 85, the return spring 83 located outside the stabilizing slide bar 82 and below the connecting frame 84 pushes the connecting frame 84 to return to its original position. At this point, the clamping frame 85, connected to the connecting frame 84, will fit against the bottom of the fixing seat 74, thereby clamping and fixing the PCB board. This clamping method is very convenient and can improve the efficiency of PCB board clamping during the testing process.
[0034] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover 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 process, method, article, or apparatus.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hole plugging detection fixture, comprising a support frame (1) as a support base, characterized in that: The support frame (1) is rotatably connected to both sides of the drive shaft (2), and a storage compartment (3) is fixedly connected between the two drive shafts (2). A through window (4) is provided on one side of the storage compartment (3), and a guide groove (5) is provided on one side of the outer end of the storage compartment (3). A storage groove (6) is provided above the guide groove (5). A position adjustment component (7) for adjusting the position of the PCB board is slidably connected to the inner side of the storage compartment (3). A clamping component (8) for clamping the PCB board is installed on the position adjustment component (7). The position adjustment assembly (7) includes a guide slider (71) slidably connected inside the guide groove (5). A connecting tube (72) is fixedly connected to one end of the guide slider (71) near the guide groove (5). A transverse adjustment rod (73) is slidably connected to the inside of the connecting tube (72). A fixed seat (74) is fixedly connected to the end of the transverse adjustment rod (73) inside the storage compartment (3). A push-pull support plate (75) is fixedly connected to the opposite end of the guide slider (71) and the connecting tube (72) through a bracket. A push-pull groove (76) is opened at the top of the push-pull support plate (75). An extension slide rod (77) that is slidably connected to the push-pull groove (76) is fixedly connected to the end of the fixed seat (74) away from the guide slider (71).
2. The hole plugging detection fixture according to claim 1, characterized in that: The connecting tube (72) is slidably connected to the guide slider (71) and the transverse adjusting rod (73) inside the guide groove (5) and the receiving groove (6), respectively.
3. The hole plugging detection fixture according to claim 1, characterized in that: The clamping assembly (8) includes buffer grooves (81) equidistantly opened on the fixed base (74). A stabilizing slide rod (82) is fixedly connected to the inner side of the buffer groove (81). A return spring (83) is sleeved on the outer side of the stabilizing slide rod (82). A connecting frame (84) is slidably connected to the outer side of the stabilizing slide rod (82) above the return spring (83). A clamping frame (85) is fixedly connected to the bottom end of the connecting frame (84).
4. The hole plugging detection fixture according to claim 1, characterized in that: A light-transmitting lamp (9) is installed in the middle of the bottom inner side of the storage compartment (3), and an observation tube (10) is fixedly connected to the middle of the top of the storage compartment (3). The observation tube (10) corresponds to the light-transmitting lamp (9).
5. The hole plugging detection fixture according to claim 1, characterized in that: Both of the drive shafts (2) are helically connected to an angle limiter (11), which is a bolt limiter.
6. The hole plugging detection fixture according to claim 1, characterized in that: The maximum length of the lateral adjusting rod (73) extending out of the connecting tube (72) is greater than the opening length of the push-pull slide (76).