Circuit board layer deviation inspection tool

Abstract

The utility model discloses a circuit board layer deviation inspection tool, which relates to the technical field of circuit board detection, and comprises an upper board and a lower board which are laminated, a circuit board is clamped between the upper board and the lower board, one side of the upper board close to the circuit board and one side of the lower board close to the circuit board are respectively provided with a protective layer which presses and touches the circuit board, and the protective layers are made of flexible materials. The surface of the circuit board can be prevented from being scratched; the lower plate is provided with a plurality of limiting columns, the limiting columns abut against the outer side wall of the circuit board, meanwhile, the lower plate is provided with a clamping piece in sliding connection, and the clamping piece elastically abuts against the outer side wall of the circuit board to push the circuit board to be in press contact with the limiting columns, so that accurate positioning of the circuit board in the lower plate is achieved, and operation is simplified; the other side, far away from the circuit board, of the upper board is provided with at least two intersecting scale marks, the circuit board is provided with at least one target, and the intersection point of the two scale marks corresponds to the position of the target, so that the position of the target can be quickly aligned with a probe of detection equipment during detection, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board detection, in particular to a circuit board layer deviation detection tool. Background Art

[0002] In the related art, the production of multi-layer circuit boards requires the processes of fusion and browning. Fusion is achieved by stacking multiple inner core boards with PP and bonding them together through hot melt. Browning is the process of biting off a layer of oxide film on the surface of the inner core board to enhance the bonding between the copper surface and PP. After fusion, a layer deviation inspection is required. Each circuit layer is provided with a circular target. The diameter of the circular target of each layer increases successively and is concentrically arranged. The concentricity of the target can be detected by an x-ray inspection device, thereby judging the layer deviation of the multi-layer circuit. The current layer deviation detection of multi-layer circuit boards is to clamp the circuit board with two films and place it on the inspection equipment. The friction between the surface of the circuit board and the film will cause damage, and there is no marking on the film. It is difficult to find the position of the target during the detection process. The operation is cumbersome and the detection efficiency is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a circuit board layer deviation inspection tool, which can improve the convenience of operation and improve the inspection efficiency.

[0004] A circuit board layer deviation inspection tool according to an embodiment of the utility model includes:

[0005] The upper plate and the lower plate are stacked, and a circuit board is clamped between the upper plate and the lower plate. A protective layer for pressing the circuit board is provided on the side of the upper plate close to the circuit board and the side of the lower plate close to the circuit board, and the protective layer is made of flexible material; a plurality of limit posts are provided on the wall surface of the lower plate where the protective layer is provided, and the limit posts abut against the outer wall of the circuit board. At the same time, a slidably connected clamping piece is provided on the lower plate, and the clamping piece elastically abuts against the outer wall of the circuit board to push the circuit board to press against the limit posts, so as to realize the positioning of the circuit board in the lower plate; at least two intersecting scale lines are provided on the other side of the upper plate away from the circuit board, and the circuit board is provided with at least one target, and the intersection of the two scale lines corresponds to the position of the target.

[0006] A circuit board layer deviation inspection tool according to an embodiment of the utility model has at least the following beneficial effects: this embodiment is provided with a stacked upper plate and a lower plate, a circuit board is clamped between the upper plate and the lower plate, and a protective layer for pressing the circuit board is provided on the side of the upper plate close to the circuit board and the side of the lower plate close to the circuit board, and the protective layer is made of flexible material to avoid scratching the surface of the circuit board; the lower plate is provided with a plurality of limit columns, and the limit columns abut against the outer wall of the circuit board, and at the same time, the lower plate is provided with a slidably connected clamping member, and the clamping member elastically abuts against the outer wall of the circuit board to push the circuit board to press against the limit columns, thereby realizing accurate positioning of the circuit board in the lower plate and simplifying operation; at least two intersecting scale lines are provided on the other side of the upper plate away from the circuit board, and the circuit board is provided with at least one target, and the intersection of the two scale lines corresponds to the position of the target, which helps to quickly align the target position with the probe of the detection equipment during detection, thereby improving operation efficiency.

[0007] According to some embodiments of the present invention, the circuit board is rectangular, the limiting column abuts against two adjacent outer side walls of the circuit board, and the clamping member presses against the other two outer side walls of the circuit board at the same time.

[0008] According to some embodiments of the present invention, the clamping member is provided with two rocker arms, and the ends of the rocker arms are provided with rollers that can abut against the outer side wall of the circuit board.

[0009] According to some embodiments of the utility model, the lower plate is provided with a slider and a slide rail, the slider is slidably embedded in the slide rail, and the clamping member is rotatably connected to the slider.

[0010] According to some embodiments of the present invention, a spring is provided in the slide rail, and two ends of the spring respectively abut against an end surface of the slider and an end surface of the slide rail away from the circuit board.

[0011] According to some embodiments of the present invention, a space-avoiding portion is provided in the protective layer of the upper plate, and the space-avoiding portion is located above the clamping member.

[0012] According to some embodiments of the utility model, a hinge is provided between the upper plate and the lower plate, and the hinge is fixed to the same side of the upper plate and the lower plate, so that the upper plate can be folded and covered on the lower plate.

[0013] According to some embodiments of the present invention, the length direction of the slide rail extends along the diagonal direction of the lower plate.

[0014] According to some embodiments of the utility model, magnets are provided at one end of the upper plate and the lower plate away from the hinge to achieve magnetic attraction and covering of the upper plate and the lower plate.

[0015] According to some embodiments of the present invention, a recessed portion is provided on one side of the rocker arm close to the circuit board to avoid interference between the rocker arm and the corners of the circuit board.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is an exploded view of a circuit board layer deviation inspection tool in an embodiment of the utility model;

[0019] Figure 2 A top view of the lower plate in the embodiment of the utility model;

[0020] Figure 3 for Figure 2 A magnified view of center A;

[0021] Figure 4 It is a cross-sectional view of a circuit board layer deviation inspection tool in an embodiment of the utility model;

[0022] Figure 5 It is an inner side view of the upper plate in the embodiment of the utility model.

[0023] Reference numerals:

[0024] Upper plate 100; protective layer 101; air-avoiding portion 102; magnet 103; circuit board 104; target 105; scale line 106; hinge 107; recessed hole 108;

[0025] The lower plate 110 , the limiting column 111 , the clamping member 112 , the rocker arm 113 , the roller 114 , the slider 115 , the slide rail 116 , the recessed portion 117 , the guide column 118 , and the spring 119 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figure 1 In an embodiment of the utility model, a circuit board layer deviation inspection tool includes a stacked upper plate 100 and a lower plate 110, a circuit board 104 is sandwiched between the upper plate 100 and the lower plate 110, and a protective layer 101 for pressing the circuit board 104 is provided on the side of the upper plate 100 close to the circuit board 104 and the side of the lower plate 110 close to the circuit board 104, and the protective layer 101 is made of a flexible material. It can be understood that the use of a flexible material can avoid hard friction between the upper plate 100 and the lower plate 110 and the circuit board 104, thereby avoiding wear of the circuit board 104. The protective layer 101 can be made of pearl cotton material, which can reduce the friction resistance between the circuit board 104 and the upper plate 100 or the lower plate 110 while protecting the circuit board 104, which is conducive to improving the convenience of installing the circuit board 104.

[0031] Reference Figure 4 A hinge 107 is provided between the upper plate 100 and the lower plate 110. The hinge 107 is fixed to the same side of the upper plate 100 and the lower plate 110 so that the upper plate 100 can be folded and covered on the lower plate 110. In actual operation, there is no need to manually align the upper plate 100 and the lower plate 110, making the operation more convenient. Furthermore, a magnet 103 is provided at one end of the upper plate 100 and the lower plate 110 away from the hinge 107 to achieve magnetic attraction and covering of the upper plate 100 and the lower plate 110. When the upper plate 100 and the lower plate 110 are magnetically attracted and covered, the upper plate 100 and the lower plate 110 press against the upper and lower sides of the circuit board 104, thereby preventing the circuit board 104 from shifting or falling during the detection process.

[0032] Reference Figure 2, a plurality of limiting posts 111 are provided on the wall surface of the lower plate 110 on which the protective layer 101 is provided, and the limiting posts 111 abut against the outer wall of the circuit board 104. It can be understood that the circuit board 104 is rectangular, and the limiting posts 111 abut against two adjacent outer walls on the circuit board 104, so that the circuit board 104 has a certain position in the lower plate 110, which is convenient for positioning during installation. It should be noted that the target 105 in the circuit board 104 is close to the corner where the two adjacent outer walls intersect, and the target 105 can be positioned when the circuit board 104 is positioned, so that the target 105 can be quickly aligned with the probe of the detection equipment during the detection process, which is beneficial to improve the detection efficiency. Furthermore, at least three limiting posts 111 are provided along the length and width directions of the lower plate 110, which can adapt to circuit boards 104 of different sizes and improve the flexibility of use.

[0033] Further, refer to Figure 3 The clamping member 112 is provided with two rocking arms 113, and the ends of the rocking arms 113 are provided with rollers 114 that can contact the outer wall of the circuit board 104, so that the clamping member 112 can press the other two outer walls of the circuit board 104 away from the limiting pillars 111 at the same time, so as to push the circuit board 104 to press the limiting pillars 111, and realize the positioning of the circuit board 104 in the lower plate 110. It can be understood that the rollers 114 can roll on the outer wall of the circuit board 104, so as to reduce the friction between the circuit board 104 and the clamping member 112, thereby avoiding damage to the circuit board 104.

[0034] Furthermore, the lower plate 110 is provided with a slider 115 and a slide rail 116. The slider 115 is slidably embedded in the slide rail 116. The clamping member 112 is rotatably connected to the slider 115. The slider 115 moves on the slide rail 116, so that the circuit boards 104 of different sizes can be adapted. Furthermore, a spring 119 is provided in the slide rail 116. The two ends of the spring 119 respectively abut against the end surface of the slider 115 and the end surface of the end of the slide rail 116 away from the circuit board 104, so that the clamping member 112 can produce a continuous elastic pressure contact on the circuit board 104, and maintain the positioning accuracy and stability of the circuit board 104. Furthermore, a guide column 118 inserted into the spring 119 is provided on the end of the slide rail 116 away from the limiting column 111, which is conducive to preventing the spring 119 from being separated from the slide rail 116 due to the pressure contact. Furthermore, the length direction of the slide rail 116 extends along the diagonal direction of the lower plate 110 , so that the two rollers 114 of the clamping member 112 can be stably pressed against the outer side wall of the circuit board 104 .

[0035] It is understandable that, since the clamping member 112 is rotatable on the slider 115, it can adapt to the circuit boards 104 of different aspect ratios, which helps to improve the flexibility of use. Furthermore, a recessed portion 117 is provided on the side of the swing arm 113 close to the circuit board 104, and when the circuit boards 104 of different aspect ratios and different sizes are installed on the lower plate 110, the swing arm 113 can avoid interference with the corners of the circuit board 104, thereby improving the flexibility of use.

[0036] Reference Figure 1 At least two intersecting scale lines 106 are provided on the other side of the upper plate 100 away from the circuit board 104, and the circuit board 104 is provided with at least one target 105. The intersection of the two scale lines 106 corresponds to the position of the target 105. During the detection operation, the approximate position of the target 105 can be conveniently and quickly located, which simplifies the operation and is conducive to improving the detection efficiency.

[0037] Further, refer to Figure 5 , a space-avoiding portion 102 is provided in the protective layer 101 of the upper plate 100, and the space-avoiding portion 102 is located above the clamping member 112, which is beneficial to avoid the protective layer 101 from pressing the clamping member 112, thereby avoiding reducing the pressure contact on the circuit board 104, which is beneficial to improving stability, and can avoid friction between the protective layer 101 and the clamping member 112, resulting in damage to the protective layer 101. Furthermore, a concave hole 108 in which the limiting column 111 can be inserted is provided in the inner wall of the protective layer 101 in the upper plate 100, which can ensure the stable contact of the limiting column 111 with the circuit board 104 while avoiding interference.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A circuit board layer deviation inspection tool, characterized in that: include: An upper plate and a lower plate are stacked, a circuit board is clamped between the upper plate and the lower plate, a protective layer for pressing the circuit board is provided on one side of the upper plate close to the circuit board and a protective layer is provided on the side of the lower plate close to the circuit board, and the protective layer is made of a flexible material; a plurality of limit posts are provided on the wall surface of the lower plate on which the protective layer is provided, and the limit posts abut against the outer wall of the circuit board, and at the same time, a slidably connected clamping member is provided on the lower plate, and the clamping member elastically abuts against the outer wall of the circuit board to push the circuit board to press against the limit posts, thereby realizing the positioning of the circuit board in the lower plate; at least two intersecting scale lines are provided on the other side of the upper plate away from the circuit board, and the circuit board is provided with at least one target, and the intersection of the two scale lines corresponds to the position of the target.

2. A circuit board layer deviation inspection tool according to claim 1, characterized in that: The circuit board is rectangular, the limiting column abuts against two adjacent outer side walls of the circuit board, and the clamping member presses against the other two outer side walls of the circuit board at the same time.

3. A circuit board layer deviation inspection tool according to claim 1, characterized in that: The clamping member is provided with two rocker arms, and the ends of the rocker arms are provided with rollers which can abut against the outer side wall of the circuit board.

4. A circuit board layer deviation inspection tool according to claim 1, characterized in that: The lower plate is provided with a slider and a slide rail, the slider is slidably embedded in the slide rail, and the clamping member is rotatably connected to the slider.

5. A circuit board layer deviation inspection tool according to claim 4, characterized in that: A spring is arranged in the slide rail, and two ends of the spring respectively abut against the end surface of the slider and the end surface of the slide rail away from the circuit board.

6. A circuit board layer deviation inspection tool according to claim 1, characterized in that: A space-avoiding portion is provided in the protective layer of the upper plate, and the space-avoiding portion is located above the clamping member.

7. A circuit board layer deviation inspection tool according to claim 6, characterized in that: A hinge is provided between the upper plate and the lower plate, and the hinge is fixed to the same side of the upper plate and the lower plate, so that the upper plate can be folded and covered on the lower plate.

8. A circuit board layer deviation inspection tool according to claim 4, characterized in that: The length direction of the slide rail extends along the diagonal direction of the lower plate.

9. A circuit board layer deviation inspection tool according to claim 7, characterized in that: The upper plate and the lower plate are provided with magnets at one end away from the hinge to achieve magnetic attraction and covering of the upper plate and the lower plate.

10. A circuit board layer deviation inspection tool according to claim 3, characterized in that: A recessed portion is provided on one side of the rocker arm close to the circuit board to prevent interference between the rocker arm and the corners of the circuit board.

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