A PCB board drilling misalignment detection fixture

Abstract

This utility model relates to a PCB board drilling misalignment detection fixture, belonging to the field of PCB board drilling technology. It includes a base plate, with fixing blocks fixed to the top of the base plate near both sides. One side of each fixing block has a bearing, and a lead screw is connected to one side of the bearing. A speed-regulating motor is connected to one side of the lead screw. The advantages are: the speed-regulating motor can rotate the lead screw, allowing the lead screw nut to repeatedly move laterally along a moving plate. The PCB board inside the insertion slot on the moving plate can be moved to the bottom of the detection slot. A visual inspection device inside the detection slot photographs and compares the control inspection component and the PCB board, replacing manual physical contact and visual inspection. This allows for batch inspection, improves inspection accuracy, and to a certain extent, increases the efficiency of PCB board drilling misalignment detection.

Description

Technical Field

[0001] This utility model relates to the field of PCB drilling technology, and in particular to a PCB drilling misalignment detection fixture. Background Technology

[0002] PCB (Printed Circuit Board), also known as a printed circuit board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical connections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board.

[0003] In existing PCB board drilling misalignment detection, the main method relies on personnel to perform misalignment detection through physical contact (such as plug gauges) or visual comparison (film) based on the combination design of the substrate positioning holes and the detection board. This method is only suitable for low-precision requirements or sampling inspection scenarios. Once personnel perform too many inspections, they will experience visual fatigue, which will reduce the efficiency of the inspection. Utility Model Content

[0004] This utility model provides a PCB board drilling misalignment detection fixture, which solves the structural technical problem mentioned above, where the combination design of the substrate positioning hole and the detection board makes it impossible for personnel to inspect too many PCB boards, and the inspection efficiency is reduced due to visual fatigue.

[0005] The present invention provides the following solution to the above-mentioned technical problems: A PCB board drilling misalignment detection fixture includes a base plate. Fixed blocks are fixed to the top of the base plate near both sides. A bearing is provided on one side of one of the fixed blocks, and a lead screw is connected to one side of the bearing. A speed-regulating motor is connected to one side of the lead screw. A lead screw nut is slidably connected to the outer wall of the lead screw. A movable plate is provided on the top of the lead screw nut. A sliding post is provided between opposite sides of each fixed block. Two sliders are slidably connected to the outer wall of the sliding post. The tops of the two sliders are connected to the bottom of the movable plate. An insertion slot is provided on the top of the movable plate. A detection slot is fixed to the top of the base plate near the center. A visual inspection device is provided on the inner top surface of the detection slot. A comparison inspection component is provided between opposite sides inside the detection slot.

[0006] The beneficial effects of this utility model are as follows: the base plate mainly serves to facilitate support; the fixing block facilitates the support of the bearing and sliding column; the bearing can fix one end of the lead screw body; the speed-regulating motor facilitates the rotation of the lead screw body; the lead screw nut on the lead screw body can move the moving plate laterally repeatedly; the moving plate can support the insertion slot, through which the PCB board can be inserted and fixed; the sliding column and slider can assist the moving plate in moving laterally repeatedly; the detection slot can store the vision inspection device; through the vision inspection device, the captured photos can be viewed against the inspection components to see if the hole position is aligned, thereby determining whether the drilling has deviated.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the control detection component includes two sliding grooves, which are disposed on both sides inside the detection groove.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the sliding groove allows the transparent panel to slide inside, which facilitates the installation and removal of the transparent panel.

[0010] Furthermore, a baffle is provided between the opposite sides of each of the sliding grooves.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the baffle can hold the transparent plate against one side, thus limiting the position of the transparent plate to one side.

[0012] Furthermore, a transparent plate is slidably connected inside each of the sliding grooves.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the transparent plate makes it easy to see the PCB board at the bottom, facilitating comparison and inspection.

[0014] Furthermore, the top of the transparent plate is provided with multiple holes.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the hole can be compared with the drilling position on the PCB board, so as to know whether the drilling on the PCB board has been misaligned.

[0016] Furthermore, lighting lamps are installed on both sides of the inner top surface of the detection slot near the visual inspection device.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the lighting can easily illuminate the inside of the inspection tank, making it convenient for the visual inspection device to take clear pictures and view the inspection.

[0018] Beneficial effects: The variable speed motor can rotate the lead screw, allowing the lead screw nut to move the moving plate laterally repeatedly. The PCB board inside the insertion slot on the moving plate can be moved to the bottom of the inspection slot. The visual inspection device inside the inspection slot takes pictures and compares the control inspection component and the PCB board, which can replace the physical contact and visual inspection by personnel. By taking pictures and comparing the visual inspection device to identify problems, batch inspection can be performed, and the inspection accuracy is improved. To a certain extent, it also improves the efficiency of PCB board drilling misalignment detection.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 A perspective view of a PCB board drilling misalignment detection fixture is provided for this utility model;

[0022] Figure 2 This utility model provides a side view of a PCB board drilling misalignment detection fixture.

[0023] Figure 3 This utility model provides a front view structural diagram of a PCB board drilling misalignment detection fixture;

[0024] Figure 4 This invention provides a PCB board drilling misalignment detection fixture. Figure 3 Enlarged 3D view of part A in the middle;

[0025] Figure 5 This utility model presents a front view schematic diagram of a partial detection groove structure of a PCB board drilling misalignment detection fixture.

[0026] Legend:

[0027] 1. Base plate; 2. Fixing block; 3. Bearing; 4. Lead screw body; 5. Speed-regulating motor; 6. Lead screw nut; 7. Moving plate; 8. Sliding column; 9. Sliding block; 10. Insertion slot; 11. Detection slot; 12. Visual inspection device; 13. Comparison inspection component; 131. Sliding groove; 132. Baffle; 133. Transparent plate; 134. Hole; 14. Lighting lamp. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0029] Example 1

[0030] like Figure 1-5 As shown, this utility model discloses a PCB board drilling misalignment detection fixture, including a base plate 1. Fixing blocks 2 are fixed to the top of the base plate 1 near both sides. A bearing 3 is provided on one side of one of the fixing blocks 2, and a lead screw 4 is connected to one side of the bearing 3. A speed-regulating motor 5 is connected to one side of the lead screw 4. A lead screw nut 6 is slidably connected to the outer wall of the lead screw 4. A movable plate 7 is provided on the top of the lead screw nut 6. A sliding post 8 is provided between opposite sides of each fixing block 2. Two sliders 9 are slidably connected to the outer wall of the sliding post 8. The tops of the two sliders 9 are connected to the bottom of the movable plate 7. An insertion slot 10 is provided on the top of the movable plate 7. A detection slot 11 is fixed to the top of the base plate 1 near the center. A visual inspection device 12 is provided on the inner top surface of the detection slot 11. A comparison inspection component 13 is provided between opposite sides inside the detection slot 11.

[0031] Example 2

[0032] like Figure 1-5 As shown, the control detection component 13 includes two sliding grooves 131, which are disposed on both sides inside the detection groove 11. A baffle 132 is provided between the opposite sides of each sliding groove 131, and a transparent plate 133 is slidably connected inside each sliding groove 131.

[0033] In this embodiment, the sliding groove 131 allows the transparent plate 133 to slide inside, which facilitates the installation and removal of the transparent plate 133. The baffle 132 can abut against one side of the transparent plate 133, limiting the position of the transparent plate 133 to one side. The transparent plate 133 allows the bottom PCB board to be easily seen, making it convenient for comparison and inspection.

[0034] Example 3

[0035] like Figure 1-5 As shown, the top of the transparent plate 133 is provided with multiple holes 134, and lighting lamps 14 are installed on both sides of the inner top surface of the detection groove 11 near the visual inspection device 12.

[0036] In this embodiment, the hole 134 can be compared with the drilling position on the PCB board to see if the drilling on the PCB board has been misaligned. The lighting lamp 14 can easily illuminate the inside of the inspection groove 11, so that the visual inspection device 12 can take pictures and view them clearly.

[0037] Working principle:

[0038] When PCB board inspection is required, the PCB board can be inserted and fixed into the insertion slot 10 on one side, allowing it to be placed on the moving plate 7. The transparent plate 133 can be inserted and fixed inside the inspection slot 11 via the sliding slot 131 and the baffle 132. Rotating the speed-regulating motor 5 causes the lead screw 4 to rotate, which in turn causes the lead screw nut 6 to move the moving plate 7 laterally and repeatedly until it stops at the bottom of the vision inspection device 12. Inspection is then performed by capturing images of the transparent plate 133 overlapping with the PCB board, and by checking whether the multiple holes 134 overlap with the drilled holes on the PCB board. The visual inspection device 12 can detect whether the drill holes on the PCB board have shifted. By integrating hardware and software technologies, it can accurately detect the drill hole offset on the PCB board. It can also capture drill hole images through the vision system, compare them with standard design drawings, and calculate the deviation between the actual hole position and the theoretical position. This can assist personnel in inspection and observation. When the moving plate 7 moves, it can be assisted by the sliding column 8 and the slider 9 to move the moving plate 7 laterally repeatedly. By taking pictures and comparing them with the visual inspection device 12, problems can be viewed. Batch inspection can be carried out, which also improves the accuracy of inspection and, to a certain extent, improves the efficiency of PCB board drill hole offset detection.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A PCB board drilling misalignment detection fixture, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixed with a fixing block (2) near both sides. One of the fixing blocks (2) is provided with a bearing (3) on one side. A lead screw body (4) is connected to one side of the bearing (3). A speed regulating motor (5) is connected to one side of the lead screw body (4). A lead screw nut (6) is slidably connected to the outer wall of the lead screw body (4). A moving plate (7) is provided on the top of the lead screw nut (6). A sliding column (8) is provided between opposite sides of each fixing block (2). Two sliders (9) are slidably connected to the outer wall of the sliding column (8). The top of the two sliders (9) is connected to the bottom of the moving plate (7). An insertion groove (10) is provided on the top of the moving plate (7). A detection groove (11) is fixed near the center of the top of the base plate (1). A visual inspection device (12) is provided on the inner top surface of the detection groove (11). A comparison inspection component (13) is provided between opposite sides inside the detection groove (11).

2. The PCB board drilling misalignment detection fixture according to claim 1, characterized in that: The control detection component (13) includes two sliding grooves (131), which are disposed on both sides inside the detection groove (11).

3. The PCB board drilling misalignment detection fixture according to claim 2, characterized in that: A baffle (132) is provided between the opposite sides of each of the sliding grooves (131).

4. The PCB board drilling misalignment detection fixture according to claim 2, characterized in that: Each of the sliding grooves (131) has a transparent plate (133) slidably connected inside.

5. The PCB board drilling misalignment detection fixture according to claim 4, characterized in that: The top of the transparent plate (133) is provided with multiple holes (134).

6. The PCB board drilling misalignment detection fixture according to claim 1, characterized in that: Illumination lamps (14) are installed on both sides of the inner top surface of the detection slot (11) near the visual inspection device (12).

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