Flatness testing machine

Abstract

The utility model relates to the technical field of detection equipment, in particular to a flatness testing machine, which utilizes a flatness detection module to detect the flatness of a workpiece to be detected on a detection jig plate and can realize automatic detection, and a sliding platform can adjust the positions of the detection jig plate and an NG jig plate, so that the flatness of the workpiece to be detected on the detection jig plate can be accurately detected. Further, the working end of the flatness detection module can be adapted; and the marking and carrying mechanism is designed, so that the NG workpieces on the inspection jig plate can be transferred to the NG jig plate, rejecting of unqualified products is achieved, and the situation that the NG defective products enter the process due to errors of workers is effectively avoided. The flatness testing machine adopts an automatic detection mode and can adapt to large-scale flatness detection work of the flexible circuit board, and the overall detection efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a flatness testing machine. Background Art

[0002] Flexible circuit board, referred to as FPC, is a printed circuit made of flexible insulating substrate. As the market has higher and higher requirements for product quality, in order to improve the yield of flexible circuit board products, avoid defective products from entering the market, timely discover the defects of FPC, and make improvements based on the defects, improve the yield of FPC products, and reduce costs, FPC needs to be tested for quality during the production process to eliminate defective products and improve the quality of the entire product.

[0003] At present, the product quality of FPC is generally tested by special optical equipment, such as the patent publication number CN111912851A-optical testing equipment, which can not only improve the optical testing efficiency of each circuit board by taking the image of the circuit board during the transmission mechanism, but also ensure the uniform movement of the circuit board by the transmission mechanism by clamping the circuit board, thereby ensuring the clarity of the image of the optical test and the accuracy of the defects of the circuit board obtained by the optical testing equipment. However, this technical solution can only detect the pattern defects of the circuit board, and cannot detect the flatness of the entire product. Utility Model Content

[0004] In order to achieve the above object, the utility model provides a flatness testing machine, comprising:

[0005] A frame, on which a workbench is arranged;

[0006] A sliding platform, which is mounted on the workbench;

[0007] An NG fixture plate, which is mounted on the output end of the sliding platform and is used to receive unqualified workpieces;

[0008] An inspection jig plate, which is mounted on the output end of the sliding platform and is used to carry and fix the workpiece to be inspected;

[0009] A flatness detection module, which is mounted on the frame and is used to check the flatness of the workpiece to be inspected on the inspection jig plate;

[0010] A marking and transporting mechanism is installed on the frame, and the marking and transporting mechanism can transfer the NG workpiece on the inspection jig plate to the NG jig plate according to the detection result of the flatness detection module.

[0011] In some possible implementations, the frame is provided with a bracket above the workbench, an X-axis moving mechanism is provided on the bracket, and the marking and transporting mechanism and the flatness detection module are both installed on the working end of the X-axis moving mechanism.

[0012] In some possible implementations, the X-axis moving mechanism includes a moving electric cylinder and a mounting base arranged on the output end of the moving electric cylinder, the marking and transporting mechanism and the flatness detection module are both installed on the mounting base, and the moving electric cylinder is installed on the bracket.

[0013] In some possible implementations, the flatness detection module includes a 3D sensor and a camera lens module both mounted on the working end of the X-axis moving mechanism, the camera lens module being used to identify the QR code of the workpiece on the inspection jig plate; the 3D sensor is capable of line scanning imaging and analyzing the 3D flatness of the workpiece to be inspected on the inspection jig plate, and the 3D sensor and the camera lens module are both electrically connected to the marking and transporting mechanism.

[0014] In some possible implementations, the sliding platform includes a drive motor, a Y-axis lead screw and a Y-axis slide rail; the drive motor and the Y-axis slide rail are both installed on the workbench, the Y-axis lead screw is arranged parallel to the Y-axis slide rail and can be rotatably installed on the workbench, the output end of the drive motor is connected to one end of the Y-axis lead screw, the NG jig plate and the inspection jig plate are both slidably installed on the Y-axis slide rail through a slider, and the slider is connected to the Y-axis lead screw through a lead screw nut.

[0015] In some possible implementations, the marking and transporting mechanism includes a fixed frame and two telescopic cylinders arranged on the fixed frame, a marker is arranged on the output end of one of the telescopic cylinders, and a plurality of suction cups are arranged on the output end of the other telescopic cylinder, and the fixed frame is installed on the moving end of the X-axis moving mechanism.

[0016] In some possible implementations, the workbench is covered with a protective cover, the marking and transporting mechanism, the flatness detection module and the sliding platform are all located inside the protective cover, a loading port is provided on one side of the protective cover, one end of the sliding platform extends out of the loading port, and the sliding platform can drive the NG jig plate and the inspection jig plate to move through the loading port.

[0017] In some possible implementations, safety gratings are provided on both sides of the loading port.

[0018] In some possible implementations, a control panel is disposed on the frame, and a touch screen is disposed on the control panel. The control panel is electrically connected to the marking and transporting mechanism, the flatness detection module, and the sliding platform.

[0019] In some possible implementations, an alarm light is provided on the rack, and the alarm light is electrically connected to the control panel.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the flatness tester of the present invention uses the flatness detection module to check the flatness of the workpiece to be inspected on the jig plate, which can realize automatic detection, and the sliding platform can adjust the position of the inspection jig plate and the NG jig plate, and then can adapt to the working end of the flatness detection module; and the design of the marking and transporting mechanism can transfer the NG workpiece on the inspection jig plate to the NG jig plate, realizing the rejection of unqualified products, and effectively avoiding the situation where NG defective products enter the process due to worker errors. The flatness tester adopts an automated detection method, which can adapt to the flatness detection of large-scale flexible circuit boards, and the overall detection efficiency is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a flatness testing machine provided by an embodiment of the utility model;

[0023] Figure 2 Provides a schematic diagram of the structure of removing the protective cover for the embodiment of the utility model Figure 1 ;

[0024] Figure 3 Provides a schematic diagram of the structure of removing the protective cover for the embodiment of the utility model Figure 2 ;

[0025] Figure 4 A partial structural schematic diagram provided for an embodiment of the utility model.

[0026] Reference numerals:

[0027] Frame 10, workbench 11, bracket 12, mobile electric cylinder 13, mounting base 14, protective cover 15, loading port 16, safety grating 17, touch screen 18, warning light 19;

[0028] Sliding platform 20, driving motor 21, Y-axis screw rod 22, Y-axis slide rail 23, slider 24;

[0029] NG fixture plate 30;

[0030] Check the jig plate 40;

[0031] Flatness detection module 50, 3D sensor 51, camera lens module 52;

[0032] Marking and transporting mechanism 60 , fixing frame 61 , telescopic cylinder 62 , marker 63 , suction cup 64 . DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the following, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "multiple" is two or more.

[0034] Reference Figures 1 to 4 A flatness testing machine shown in the figure includes a frame 10, a sliding platform 20, an NG jig plate 30, an inspection jig plate 40, a flatness detection module 50 and a marking and conveying mechanism 60. A workbench 11 is provided on the frame 10; the sliding platform 20 is installed on the workbench 11; the NG jig plate 30 is installed on the output end of the sliding platform 20 for receiving unqualified workpieces; the inspection jig plate 40 is installed on the output end of the sliding platform 20 for carrying and fixing the workpiece to be inspected; the flatness detection module 50 is installed on the frame 10 for checking the flatness of the workpiece to be inspected on the inspection jig plate 40; the marking and conveying mechanism 60 is installed on the frame 10, and the marking and conveying mechanism 60 can transfer the NG workpiece on the inspection jig plate 40 to the NG jig plate 30 according to the detection result of the flatness detection module 50.

[0035] Among them, the sliding platform 20 can realize the horizontal displacement of the entire plane, or directly realize the horizontal displacement in a single direction. This is selected according to actual needs, and its main purpose is to cooperate with the flatness detection module 50 for detection. The sliding platform 20 can adopt a conventional cross slide structure, or a sliding electric cylinder with plane movement. The main purpose of the marking and handling mechanism 60 in this application is to reduce the number of unqualified products for labeling, which is conducive to secondary inspection and filing of unqualified products in the later stage. It should be noted that in the above-mentioned embodiment, a number of positioning structures are provided on the inspection jig plate 40 for fixing the products to be inspected, which is conducive to the inspection of the flatness detection module 50; similarly, a number of bearing grooves for receiving unqualified products are provided on the NG jig plate 30. In an improved embodiment, the NG jig plate 30 and the inspection jig plate 40 can adopt the same structure, which is consistent and conducive to later operation.

[0036] This flatness tester uses the flatness detection module 50 to check the flatness of the workpiece to be inspected on the inspection jig plate 40, which can realize automatic detection, and the sliding platform 20 can adjust the position of the inspection jig plate 40 and the NG jig plate 30, and then can adapt to the working end of the flatness detection module 50; and the design of the marking and transporting mechanism 60 can transfer the NG workpiece on the inspection jig plate 40 to the NG jig plate 30, so as to realize the rejection of unqualified products and effectively avoid the situation where NG defective products enter the process due to worker errors. This flatness tester adopts an automated detection method, which can adapt to the flatness detection of large-scale flexible circuit boards, and the overall detection efficiency is guaranteed.

[0037] In one embodiment of the present application, in order to improve protection and safety, a protective cover 15 is installed on the workbench 11, and the marking and transporting mechanism 60, the flatness detection module 50 and the sliding platform 20 are all located in the protective cover 15. A loading port 16 is provided on one side of the protective cover 15, and one end of the sliding platform 20 extends out of the loading port 16. The sliding platform 20 can drive the NG jig plate 30 and the inspection jig plate 40 to move through the loading port 16. Among them, the loading port 16 is mainly for the convenience of the staff or the robot arm to load and unload the NG jig plate 30 and the inspection jig plate 40 on the sliding platform 20.

[0038] In the above improved embodiment, in order to further improve safety, safety gratings 17 are provided on both sides of the loading port 16. The safety gratings 17 are connected to the background control system.

[0039] In some possible implementations, a control panel is provided on the frame 10, and a touch screen 18 is provided on the control panel. The control panel is electrically connected to the marking and conveying mechanism 60, the flatness detection module 50, and the sliding platform 20. The marking and conveying mechanism 60, the flatness detection module 50, and the sliding platform 20 can be controlled through the touch screen 18, thereby improving the convenience of operation.

[0040] In some possible implementations, in order to remind the staff, an alarm light 19 is provided on the frame 10, and the alarm light 19 is electrically connected to the control panel. When an unknown shutdown or a safety accident shutdown occurs, the control panel can control the alarm light 19 to operate.

[0041] See also Figures 2 to 4 In one embodiment of the present application, in order to achieve simpler operation and improve the efficiency of detection, a frame 10 is provided with a bracket 12 above the workbench 11, and an X-axis moving mechanism is provided on the bracket 12. The marking and transporting mechanism 60 and the flatness detection module 50 are both installed on the working end of the X-axis moving mechanism. Among them, through the dual movement of the X-axis moving mechanism and the sliding platform 20, the efficiency of the overall mutual movement can be improved, thereby improving the work efficiency. The X-axis moving mechanism can be a conventional screw slider structure or a conventional telescopic electric cylinder structure.

[0042] In some possible implementations, the X-axis moving mechanism includes a moving electric cylinder 13 and a mounting base 14 arranged on the output end of the moving electric cylinder 13, the marking and transporting mechanism 60 and the flatness detection module 50 are both mounted on the mounting base 14, and the moving electric cylinder 13 is mounted on the bracket 12. Among them, the marking and transporting mechanism 60 and the flatness detection module 50 are uniformly mounted on the mounting base 14, so that a shared X-axis moving mechanism can be achieved. Equipment can be saved to a certain extent. In actual use, the number of unqualified products is relatively small compared to qualified products, so the X-axis moving mechanism can basically be regarded as the main driving force for the flatness detection module 50 to perform detection.

[0043] In some embodiments, the sliding platform 20 includes a driving motor 21, a Y-axis screw rod 22 and a Y-axis slide rail 23; the driving motor 21 and the Y-axis slide rail 23 are both installed on the workbench 11, the Y-axis screw rod 22 is arranged parallel to the Y-axis slide rail 23 and can be rotatably installed on the workbench 11, the output end of the driving motor 21 is connected to one end of the Y-axis screw rod 22, the NG jig plate 30 and the inspection jig plate 40 are both slidably installed on the Y-axis slide rail 23 through a slider 24, and the slider 24 is connected to the Y-axis screw rod 22 through a screw nut.

[0044] In some possible implementations, in order to achieve high-precision flatness detection, in one embodiment of the present application, the flatness detection module 50 includes a 3D sensor 51 and a camera lens module 52, both of which are installed on the working end of the X-axis moving mechanism. The camera lens module 52 is used to identify the two-dimensional code of the workpiece on the inspection jig plate 40; the 3D sensor 51 can perform line scanning imaging analysis to check the 3D flatness of the workpiece to be inspected on the jig plate 40, and the 3D sensor 51 and the camera lens module 52 are both electrically connected to the marking and transporting mechanism 60. Among them, at least three 3D sensors 51 are provided, and multiple 3D sensors 51 are used to obtain multi-point data on the FPC through line scanning, thereby constructing a 3D plane model and obtaining intuitive, accurate and effective data. Among them, the sensor is a conventional sensor, which is not described in detail in this application. The camera lens module 52 is used to cooperate with the marking and transporting mechanism 60 to ensure that the marking and transporting mechanism 60 accurately meets the standards and transfers products.

[0045] In an improved embodiment of the present application, the marking and transporting mechanism 60 includes a fixed frame 61 and two telescopic cylinders 62 arranged on the fixed frame 61, a marker 63 is arranged on the output end of one telescopic cylinder 62, and a plurality of suction cups 64 are arranged on the output end of the other telescopic cylinder 62, and the fixed frame 61 is installed on the moving end of the X-axis moving mechanism. The main purpose of the marker 63 is to label unqualified products, which is convenient for other equipment to identify them later. After the marker 63 marks the unqualified products, the camera lens module 52 recognizes the label, and then the background control system controls the corresponding action of the telescopic cylinder 62 connected to the X-axis moving mechanism and the suction cup 64, so that the unqualified products can be transferred to the NG fixture plate 30.

[0046] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A flatness testing machine, characterized in that: include: A frame, on which a workbench is arranged; A sliding platform, which is mounted on the workbench; An NG fixture plate, which is mounted on the output end of the sliding platform and is used to receive unqualified workpieces; An inspection jig plate, which is mounted on the output end of the sliding platform and is used to carry and fix the workpiece to be inspected; A flatness detection module, which is mounted on the frame and is used to check the flatness of the workpiece to be inspected on the inspection jig plate; A marking and transporting mechanism is installed on the frame, and the marking and transporting mechanism can transfer the NG workpiece on the inspection jig plate to the NG jig plate according to the detection result of the flatness detection module.

2. A flatness testing machine according to claim 1, characterized in that: The frame is located above the workbench and is provided with a bracket, an X-axis moving mechanism is arranged on the bracket, and the marking and transporting mechanism and the flatness detection module are both installed on the working end of the X-axis moving mechanism.

3. A flatness testing machine according to claim 2, characterized in that: The X-axis moving mechanism includes a moving electric cylinder and a mounting seat arranged on the output end of the moving electric cylinder, the marking and transporting mechanism and the flatness detection module are both installed on the mounting seat, and the moving electric cylinder is installed on the bracket.

4. A flatness testing machine according to claim 2, characterized in that: The flatness detection module includes a 3D sensor and a camera lens module both installed on the working end of the X-axis moving mechanism, and the camera lens module is used to identify the QR code of the workpiece on the inspection jig plate; the 3D sensor can analyze the 3D flatness of the workpiece to be inspected on the inspection jig plate by line scanning imaging, and the 3D sensor and the camera lens module are both electrically connected to the marking and conveying mechanism.

5. A flatness testing machine according to claim 2, characterized in that: The sliding platform includes a driving motor, a Y-axis lead screw and a Y-axis slide rail; the driving motor and the Y-axis slide rail are both installed on the workbench, the Y-axis lead screw is arranged parallel to the Y-axis slide rail and can be rotatably installed on the workbench, the output end of the driving motor is connected to one end of the Y-axis lead screw, the NG jig plate and the inspection jig plate are both slidably installed on the Y-axis slide rail through a slider, and the slider is connected to the Y-axis lead screw through a lead screw nut.

6. A flatness testing machine according to claim 2, characterized in that: The marking and transporting mechanism includes a fixed frame and two telescopic cylinders arranged on the fixed frame, a marker is arranged on the output end of one of the telescopic cylinders, and a plurality of suction cups are arranged on the output end of the other telescopic cylinder. The fixed frame is installed on the moving end of the X-axis moving mechanism.

7. A flatness testing machine according to any one of claims 1 to 6, characterized in that: The workbench is covered with a protective cover, and the marking and transporting mechanism, the flatness detection module and the sliding platform are all located inside the protective cover. A loading port is provided on one side of the protective cover, and one end of the sliding platform extends out of the loading port. The sliding platform can drive the NG jig plate and the inspection jig plate to move through the loading port.

8. A flatness testing machine according to claim 7, characterized in that: Safety gratings are arranged on both sides of the feeding port.

9. A flatness testing machine according to any one of claims 1 to 6, characterized in that: The frame is provided with a control panel, the control panel is provided with a touch screen, and the control panel is electrically connected with the marking and transporting mechanism, the flatness detection module, and the sliding platform.

10. A flatness testing machine according to claim 9, characterized in that: The frame is provided with an alarm light, and the alarm light is electrically connected to the control panel.

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