Multi-layer circuit board offset detection device

Abstract

The utility model relates to the technical field of multi-layer circuit board detection, in particular to a multi-layer circuit board offset detection device, which comprises a base, a bearing seat is mounted at the upper end of the middle of the base, and a measuring piece is arranged on the side surface of the bearing seat; the measuring piece comprises four limiting plates arranged at intervals, every two limiting plates are oppositely arranged, connecting frames are installed on the sides, away from the bearing base, of the limiting plates, rotating bases are arranged on the sides, away from the limiting plates, of the connecting frames, the ends of the rotating bases are rotationally connected with fixing bases through rotating shafts, the fixing bases are fixed to the connecting frames, and the rotating shafts are sleeved with torsional springs. And one end of the torsion spring is fixed on the fixed seat and the other end is fixed on the rotating seat. When the multi-layer circuit board offset detection device is used, through the rotary connection of the limiting plate, after the limiting plate is in contact with the circuit board, the flatness of the side edge of the circuit board can be correspondingly deflected so as to judge whether the multi-layer circuit board is offset or not.

Description

Technical Field

[0001] The utility model relates to the technical field of multi - layer circuit board detection, in particular to a multi - layer circuit board offset detection device. Background Art

[0002] A multi - layer circuit board is a circuit board with multiple circuit layers, and each layer is connected by predetermined vias to form a planar, compressed multi - layer circuit board structure; this structure is equivalent to overlapping multiple circuit boards on a single - sided board, thus realizing a complex circuit layout and high integration.

[0003] During the production of multi - layer circuit boards, it is necessary to stack each layer of circuit boards together and then fix them. However, when stacking multi - layer circuit boards, it is easy to have an offset between the circuit boards. Once the offset amount between the circuit boards is too large, problems such as an increased wiring difficulty between the circuit boards will occur. Therefore, after stacking and splicing the circuit boards, a detection device is required to measure the offset amount. For this reason, a multi - layer circuit board offset detection device is proposed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a multi - layer circuit board offset detection device to solve the above - mentioned drawbacks in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: design a multi - layer circuit board offset detection device, including a base. A carrier seat is installed at the upper end of the middle of the base, and a measuring member is arranged on the side of the carrier seat.

[0006] The measuring member includes four limiting plates arranged at intervals. The four limiting plates are arranged in pairs opposite to each other. A connecting frame is installed on the side of the limiting plate away from the carrier seat. A rotating seat is arranged on the side of the connecting frame away from the limiting plate. The end of the rotating seat is rotatably connected to a fixed seat through a rotating shaft. The fixed seat is fixed on the connecting frame. A torsion spring is sleeved on the rotating shaft. One end of the torsion spring is fixed on the fixed seat and the other end is fixed on the rotating seat.

[0007] A pushing mechanism is connected to the side of the rotating seat away from the connecting frame. The pushing mechanism is installed on a support frame, and the support frame is fixed on the base.

[0008] Preferably, an angle sensor is connected to the rotating shaft, and the angle sensor is fixed on the fixed seat.

[0009] Preferably, a control box is further installed on the base. A controller is arranged inside the control box. The controller is connected to the pushing mechanism and the angle sensor through wires respectively.

[0010] Preferably, a display is provided on the top surface of the control box. The display is a touch display and is connected to the controller through a wire.

[0011] Preferably, the bearing seat includes a support platform. The support platform is located above the middle of the base, and four limiting plates are arranged on the sides of the support platform respectively.

[0012] A lifting mechanism is vertically installed at the bottom of the support platform. The lifting mechanism is vertically fixed on the base through a bracket and is connected to the controller through a wire.

[0013] Preferably, at least one sleeve is provided on the side of the lifting mechanism. The sleeve is vertically fixed on the base, and a guide shaft is built in the top of the sleeve. The top of the guide shaft is fixed to the support platform.

[0014] Preferably, mounting holes are formed at the corners of the base.

[0015] The beneficial effects of the design scheme proposed by the present utility model in the application process are as follows:

[0016] 1. When the limiting plates are pressed against the side of the multi-layer circuit board by the pushing mechanism, the multi-layer circuit board offset detection device can deflect around the rotating shaft relying on the flatness of the side of the circuit board, and is detected and measured by the angle sensor. The four limiting plates are symmetrically arranged on the four sides of the circuit board, which can not only interact with each other to ensure the stability of the circuit board during detection, but also detect the four sides of the circuit board simultaneously to ensure the accuracy of the detection data.

[0017] 2. Through the setting of the torsion spring, when the limiting plate does not contact the circuit board, the limiting plate can maintain a state where the top is tilted away from the support platform. When the limiting plate abuts against the side of the circuit board, it can accurately deflect due to the flatness of the side of the circuit board, further ensuring the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a front view of the present utility model;

[0020] Figure 3 is a top view of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the measuring member of the present utility model.

[0022] In the figure: 1, base; 2, limit plate; 3, connecting frame; 4, fixed seat; 5, rotating seat; 6, rotating shaft; 7, angle sensor; 8, pushing mechanism; 9, support frame; 10, mounting hole; 11, support table; 12, lifting mechanism; 13, bracket; 14, sleeve; 15, guide shaft; 16, control box; 17, torsion spring. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Refer to Figures 1-4 , a multi-layer circuit board offset detection device, including a base 1. Mounting holes 10 are provided at the corners of the base 1. During use, bolts can be taken to pass through the mounting holes 10 to install and fix the base 1.

[0025] A bearing seat is installed at the upper end of the middle part of the base 1. As Figure 1 and Figure 2 shown, the bearing seat includes a support table 11. The support table 11 is located above the middle part of the base 1 and is used for placing the circuit board. A lifting mechanism 12 is vertically installed at the bottom of the support table 11. The lifting mechanism 12 is vertically fixed on the base 1 through a bracket 13. During actual use, the lifting mechanism 12 is one of an electric push rod, a hydraulic cylinder, and a cylinder, so as to perform a lifting operation on the support table 11, thereby adjusting the height of the circuit board from the base 1.

[0026] Furthermore, at least one sleeve 14 is provided on the side of the lifting mechanism 12. The sleeve 14 is vertically fixed on the base 1, and a guide shaft 15 is built in the top of the sleeve 14. The top of the guide shaft 15 is fixed to the support table 11 to provide guidance for the lifting of the support table 11, thereby ensuring the lifting stability of the support table 11.

[0027] After the circuit board is placed on the support table 11, a measuring member is provided on the side of the bearing seat. As Figure 1 and Figure 4As shown in the figure, the measuring member includes four spaced-apart limiting plates 2. The four limiting plates 2 are arranged in pairs opposite to each other, and the four limiting plates 2 are arranged on the side of the support table 11, that is, the limiting plates 2 are arranged on the four sides of the circuit board and correspond to the side edges of the circuit board; A connecting frame 3 is installed on the side of the limiting plate 2 away from the bearing seat. A rotating seat 5 is provided on the side of the connecting frame 3 away from the limiting plate 2. The end of the rotating seat 5 is rotatably connected to a fixed seat 4 through a rotating shaft 6. The fixed seat 4 is fixed on the connecting frame 3. A pushing mechanism 8 is connected to the side of the rotating seat 5 away from the connecting frame 3. The pushing mechanism 8 is installed on the support frame 9, and the support frame 9 is fixed on the base 1. In the actual use process, the pushing mechanism 8 is one of an electric push rod, a hydraulic cylinder, and a cylinder, and can push the limiting plate 2 to approach the side of the circuit board and abut against the side edge of the circuit board.

[0028] Specifically, a torsion spring 17 is sleeved on the rotating shaft 6. One end of the torsion spring 17 is fixed on the fixed seat 4 and the other end is fixed on the rotating seat 5, so that the limiting plate 2 always maintains a state of tilting with the top facing away from the support table 11 when not in contact with external objects. In use, the lifting mechanism 12 will drive the center of the circuit board to a position corresponding to the axis of the rotating seat 5. When the limiting plate 2 abuts against the side of the circuit board, if the side edges between multiple layers of circuit boards are aligned and flat, at this time, the top of the limiting plate 2 will deflect towards the circuit board and be in a vertical state, and the inspector can directly observe it; In order to more accurately detect the offset situation, an angle sensor 7 is connected to the rotating shaft 6, and the angle sensor 7 is fixed on the fixed seat 4, so as to detect the deflection angle value of the limiting plate 2, and thus obtain the offset amount of multiple layers of circuit boards.

[0029] It should be noted that a control box 16 is also installed on the base 1. A controller is arranged in the control box 16. The controller is respectively connected to the pushing mechanism 8, the angle sensor 7, and the lifting mechanism 12 through wires, and can control the pushing mechanism 8 and the lifting mechanism 12; A display is arranged on the top surface of the control box 16. The display is a touch display, and the display is connected to the controller through a wire. In the actual use process, the inspector can directly operate and control the detection process through the display, and display the values detected by the angle sensor 7 through the display.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multi-layer circuit board offset detection device, characterized in that: It includes a base (1), on the upper end of the middle part of the base (1), a bearing seat is installed, and a measuring member is arranged on the side of the bearing seat; The measuring member includes four spacing - arranged limiting plates (2), the four limiting plates (2) are arranged in pairs opposite to each other, and on the side of the limiting plate (2) far from the bearing seat, a connecting frame (3) is installed. On the side of the connecting frame (3) far from the limiting plate (2), a rotating seat (5) is provided. The end of the rotating seat (5) is rotatably connected to a fixed seat (4) through a rotating shaft (6). The fixed seat (4) is fixed on the connecting frame (3). A torsion spring (17) is sleeved on the rotating shaft (6), one end of the torsion spring (17) is fixed on the fixed seat (4) and the other end is fixed on the rotating seat (5); On the side of the rotating seat (5) far from the connecting frame (3), a pushing mechanism (8) is connected. The pushing mechanism (8) is installed on a support frame (9), and the support frame (9) is fixed on the base (1).

2. The offset detection device for a multi-layer circuit board according to claim 1, characterized in that: An angle sensor (7) is connected to the rotating shaft (6), and the angle sensor (7) is fixed on the fixed seat (4).

3. The offset detection device for a multi-layer circuit board according to claim 2, wherein: A control box (16) is also installed on the base (1). A controller is arranged inside the control box (16). The controller is connected to the pushing mechanism (8) and the angle sensor (7) respectively through wires.

4. The multi-layer circuit board offset detection device according to claim 3, characterized in that: On the top surface of the control box (16), a display is provided. The display is a touch - screen display, and the display is connected to the controller through a wire.

5. The offset detection device for a multi-layer circuit board according to claim 3, characterized in that: The bearing seat includes a support platform (11). The support platform (11) is located above the middle part of the base (1), and the four limiting plates (2) are arranged on the sides of the support platform (11); A lifting mechanism (12) is vertically installed at the bottom of the support platform (11). The lifting mechanism (12) is vertically fixed on the base (1) through a bracket (13), and the lifting mechanism (12) is connected to the controller through a wire.

6. The multi-layer circuit board offset detection device according to claim 5, wherein: At least one sleeve (14) is arranged on the side of the lifting mechanism (12). The sleeve (14) is vertically fixed on the base (1), and a guide shaft (15) is built - in at the top of the sleeve (14). The top of the guide shaft (15) is fixed to the support platform (11).

7. The multi-layer circuit board offset detection device according to claim 1, wherein: Mounting holes (10) are opened at the corners of the base (1).

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