Batch detection device and method for quality inspection in falling process of optical fiber assembly

Abstract

The invention discloses a batch detection device and method for quality inspection in the falling process of an optical fiber assembly, and relates to the technical field of optical component detection, the batch detection device comprises a piece separation disc, and the piece separation disc is provided with a plurality of material aligning ports whose outlines are matched with the overlook outlines of couplers; the number of the cross-shaped guide rails is the same as that of the material aligning ports, and the cross-shaped guide rails are located below the material aligning ports; the visual module is located on the side face of the cross-shaped guide rail and used for collecting an end-view image passing through the coupler from the cross-shaped guide rail; the back shore is used for stopping the coupler in the cross-shaped guide rail; the electrical parameter checking mechanism is used for carrying out power-on checking on the coupler passing through the cross guide rail; and the comprehensive controller is electrically connected to the visual module and the electrical parameter checking mechanism. The method and the device have the effects of meeting the quality inspection requirement of the coupler and reducing the problem of poor user experience caused by missing inspection.

Description

Technical Field

[0001] The present application relates to the technical field of optical component detection, and in particular to a batch detection device and method for performing quality inspection during the falling process of optical fiber components. Background Art

[0002] A fiber coupler is a structure used to connect different segments of optical fiber. The main function of a fiber coupler is to maximize the coupling of the light energy output by the transmitting optical fiber into the receiving optical fiber to ensure the effective transmission of the optical signal.

[0003] In order to ensure the quality of the coupler and reduce the adverse effects of defective products, it is necessary to test the produced optical fiber couplers; due to the small size and large number of couplers, quality inspection has been mostly carried out by random sampling in the past, and the random sampling is based on a large base. This method has the problem of missed detection, so this application proposes a new technical solution. Summary of the invention

[0004] In order to meet the quality inspection requirements of couplers and reduce the problem of poor user experience caused by missed inspections, the present application provides a batch inspection device and method for performing quality inspection during the falling process of optical fiber components.

[0005] In a first aspect, the present application provides a batch inspection device for performing quality inspection during the falling process of optical fiber components, which adopts the following technical solution: A batch inspection device for performing quality inspection during the falling process of optical fiber components, comprising: The component plate is provided with a plurality of material matching openings whose contours match the top view contours of the coupler; Cross guide rails, the number of which is the same as the number of the material ports and are located below the material ports; A vision module located on the side of the cross guide and used to collect end-view images from the cross guide through the coupler; A top support for the coupler in the dead center cross guide; An electrical parameter checking mechanism, which is used to perform an electrical check on the coupler passing through the cross rail; An integrated controller electrically connected to the visual module and the electrical parameter troubleshooting mechanism; The cross guide rail is arranged vertically and each side has an opening opened in the height direction. The integrated controller is configured as follows: Compare the real-time image with the preset standard image, and output the coupler quality inspection result 1 according to the image comparison result; The real-time power-on feedback is compared with the preset standard electrical parameters, and the second quality inspection result of the coupler is output according to the electrical parameter comparison result.

[0006] Optionally, the ejector includes a needle plate, an ejector pin and an electric push cylinder, the ejector pin is vertically arranged on the needle plate and extends into the cross guide rail, two ejector pins flush with each other are arranged in one cross guide rail, the ejector pin extends into a groove in the cross guide rail for the coupler cylinder to pass through, the two ejector pins in the same cross guide rail form a pair and the circuit structure is connected in series, the electric push cylinder is vertically arranged and the telescopic rod end is fixed to the needle plate; the integrated controller is electrically connected to the ejector pin and is configured to determine whether the coupler posture is correct based on the power-on feedback of each pair of ejector pins.

[0007] Optionally, air columns are provided on the needle plate, the number of the air columns is the same as the number of ejector pins, and the lower ends of the ejector pins are vertically slidably connected to the air columns; the air columns are connected to an air pumping mechanism through an air pipe and an electromagnetic valve is installed on the air pipe, the electromagnetic valve is electrically connected to an integrated controller, and the integrated controller is configured as follows: if the posture of the coupler is wrong, the corresponding electromagnetic valve is controlled to open.

[0008] Optionally, the air extraction mechanism includes a fan, a three-port pipe, a valve A and a valve B, the number of the three-port pipes is the same as the number of air columns, one port of the three-port pipe is connected to the air inlet end of the fan, one port is connected to the air outlet end of the fan, and the other port is used to connect to the air pipe of the air column; the valve A is installed on the port of the three-port pipe connecting the air inlet end of the fan, and the valve B is installed on the port of the three-port pipe connecting the air outlet end of the fan, and the valve A and valve B are electrically connected to the integrated controller respectively.

[0009] Optionally, the electrical parameter troubleshooting mechanism includes a vertical plate, a test lead extension column, a limit sleeve and a horizontal pushing mechanism. The test lead extension columns are fixed transversely and vertically to the vertical plate and the number is at least the same as the number of the cross guide rails. The two vertical plates form a group and are respectively located on both sides of the cross guide rails. The limit sleeve is fixed on the vertical plate and covers the test lead extension column. After the test lead extension column extends out of the limit sleeve, it is used to contact the pin of the coupler. The vertical plate is fixed to the pushing part of the horizontal pushing mechanism, and the horizontal pushing mechanism is electrically connected to the integrated controller.

[0010] Optionally, a pin hole is provided at one end of the test lead extension column facing the cross guide rail.

[0011] Optionally, the integrated controller is also electrically connected to a blowing mechanism, which includes an air nozzle and a valve C. The air outlet end of the air nozzle is horizontally facing below the lower port of the cross guide rail, and the air nozzle is connected to the air outlet of the fan through a pipe. The valve C is installed on the pipe of the air nozzle and is electrically connected to the integrated controller.

[0012] In a second aspect, the present application provides a batch detection method for quality inspection during the falling process of optical fiber components, which adopts the following technical solution: A batch inspection method for quality inspection during the falling process of optical fiber components uses any of the batch inspection devices for quality inspection during the falling process of optical fiber components as described above to inspect the quality of couplers.

[0013] In summary, the present application includes the following beneficial technical effects: The coupler can be adjusted to the desired posture through the cooperation of the component disk and the cross guide rail, and then the visual inspection technology can be used to batch determine whether the coupler pins are skewed, and the electrical parameter troubleshooting mechanism can be used to batch power-on the coupler pins for inspection. Since the detection rate is relatively fast, it is no longer a pure manual visual inspection or inspection with a multimeter, so it meets the quality inspection needs of more couplers and reduces the problem of poor user experience caused by missed inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the component plate and the top support of the device of the present application; Figure 2 It is a schematic diagram of the control structure of the device of the present application; Figure 3 It is a structural schematic diagram of the electrical parameter troubleshooting mechanism of the present application; Figure 4 It is a structural schematic diagram of the gas pumping mechanism of the present application.

[0015] Explanation of the reference numerals in the accompanying drawings: 1. Partition plate; 2. Cross guide rail; 3. Visual module; 4. Top support; 41. Needle plate; 42. Ejector pin; 43. Electric push cylinder; 5. Electrical parameter troubleshooting mechanism; 51. Vertical plate; 52. Test lead extension column; 53. Limit sleeve; 54. Horizontal push mechanism; 6. Integrated controller; 71. Air column; 72. Air pumping mechanism; 721. Fan; 722. Three-port pipeline; 73. Solenoid valve; 8. Pressure sensor; 9. Air nozzle. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-4 This application is described in further detail.

[0017] An embodiment of the present application discloses a batch inspection device for performing quality inspection during the falling process of optical fiber components.

[0018] Reference Figure 1-4The batch inspection device for quality inspection during the falling process of the optical fiber assembly includes a component tray 1, a cross guide rail 2, a visual module 3, a top support 4 and an electrical parameter troubleshooting mechanism 5, wherein the component tray 1 is a thin plate that is rectangular in top view, and the edge of the thin plate is folded upward to form a retaining edge to prevent the coupler on the component tray 1 from falling. There are multiple material ports evenly distributed on the component tray 1, and the material ports are cross-shaped when viewed from above, which fits the top view contour of the coupler. It should be noted that the coupler in this embodiment refers to an FC-type optical fiber coupler. The component tray 1 can be supported by a bracket, and at this time, it is necessary to manually move the coupler on the component tray 1 to allow it to enter the material port.

[0019] The cross guide rail 2 is long and has the same number as the material ports. The cross guide rail 2 is hollow along the length direction and the inner cavity is cross-shaped when viewed from the end to fit the coupler. The coupler that enters the material port falls into the cross guide rail 2. Each side of the cross guide rail 2 has an opening in the height direction, and the upper end of the cross guide rail 2 is fixed to the lower part of the component tray 1.

[0020] The visual module 3 is, for example, a CCD high-definition camera, which can be mounted on a mounting platform at the piston rod end of a horizontally arranged cylinder; the cylinder is extended to move the visual module 3 to the side of the cross guide 2 so as to obtain an end view of the coupler pin. In order to obtain end views of multiple couplers at one time, the cross guides 2 are distributed along a straight line and the two sides of the arrangement direction of the multiple cross guides 2 are the sides facing the coupler pins; there is one camera on each side.

[0021] The top support 4 is used to stop the coupler in the cross guide 2 to facilitate the collection of images for analysis, etc.; the electrical parameter inspection mechanism 5 is used to conduct power-on inspection on the couplers passing through the cross guide 2, and it is performed in batches.

[0022] In order to perform automatic control, the device also includes an integrated controller 6, which can be a computer and a PLC controller connected to the computer. The PLC controller is connected to various sensors, cylinder structures, motors, etc. The computer is connected to a camera for image analysis. The integrated controller 6 is configured as follows: Perform image recognition on the collected end view to obtain the pin features, extract the outline as a real-time image, compare the real-time image with the preset standard image, and output the coupler quality inspection result one according to the image comparison result; for example: if the outline size difference exceeds the allowable threshold, it is considered unqualified; Compare the real-time power-on feedback and standard electrical parameters, and output the second coupler quality inspection result based on the electrical parameter comparison result; the purpose of powering on is to calculate the resistance through current and voltage, and to judge whether the metal pin is qualified through the resistance.

[0023] According to the above configuration, the device can adjust the coupler to the required posture through the cooperation of the component disk 1 and the cross guide 2, and then use the visual inspection technology to batch determine whether the coupler pins are skewed, and use the electrical parameter troubleshooting mechanism 5 to batch power on the coupler pins for inspection. Since the detection rate is relatively fast, it is no longer a pure manual visual inspection and multimeter inspection, so it meets the quality inspection needs of more couplers and reduces the problem of poor user experience caused by missed inspections.

[0024] In one embodiment of the device, the support 4 includes a needle plate 41, an ejector pin 42 and an electric push cylinder 43, wherein the ejector pin 42 is vertically arranged on the needle plate 41 and extends into the cross guide 2. There are two ejector pins 42 flush with each other in one cross guide 2, and the ejector pins 42 extend into a groove in the cross guide 2 for the coupler cylinder to pass through.

[0025] The two ejector pins 42 in the same cross guide 2 form a pair. When in use, the two ejector pins 42 of the same pair are connected to the high level signal output terminal and the int terminal of the integrated controller 6 by wires.

[0026] When the coupler correctly enters the material port of the dividing plate 1, one of the two ejector pins 42 of the same pair contacts the coupler cylinder, while the other cannot, because the heights of the arc surfaces in the circumferential direction are inconsistent; however, if the coupler enters the material port incorrectly, and the middle direction partition enters the material port, the ejector pins 42 of the same pair contact the coupler at the same time and are turned on.

[0027] According to the above arrangement, the integrated controller 6 is configured to determine whether the coupler posture is correct based on the power-on feedback of each pair of ejector pins.

[0028] The electric push cylinder 43 is vertically arranged and the telescopic rod end is fixed to the lower part of the needle plate 41 to drive the ejector pin 42 to rise and fall. The electric push cylinder 43 is electrically connected to the integrated controller 6.

[0029] In one embodiment of the device, a hollow gas column 71 is fixed on the needle plate 41, and the number of gas columns 71 is the same as the number of ejector pins 42. The lower end of the ejector pin 42 is vertically slidably connected to the gas column 71; if the tightness between the ejector pin 42 and the inner cavity of the gas column 71 is poor, a piston can be installed at the lower end of the ejector pin 42. It should be noted that the ejector pin 42 should be longitudinally cut into a T-shape, and the gas column 71 should be adapted to achieve the purpose of preventing it from falling off.

[0030] The air column 71 is connected to the air pumping mechanism 72 through the air pipe, and the air pipe is equipped with a solenoid valve 73; the solenoid valve 73 is electrically connected to the integrated controller 6, and the integrated controller 6 is configured to control the corresponding solenoid valve 73 to open if the posture of the coupler is wrong. That is, when the posture of the coupler entering the material port is wrong, the solenoid valve 73 can be opened to push the ejector pin 42 upward by blowing air to eject the coupler.

[0031] Reference Figure 4The air extraction mechanism 72 includes a fan 721, a three-port pipe 722, a valve A and a valve B, wherein the number of the three-port pipes 722 is the same as the number of the air columns 71, one port of the three-port pipe 722 is connected to the air inlet end of the fan 721, one port is connected to the air outlet end of the fan 721, and the other port is used to connect to the air pipe of the air column 71.

[0032] Valve A is installed on one port of the three-port pipe 722 connected to the air inlet end of the fan 721, and valve B is installed on one port of the three-port pipe 722 connected to the air outlet end of the fan 721. Valve A and valve B are electrically connected to the integrated controller 6 respectively.

[0033] It should be noted that the diameter of the three-port pipe 722 should be relatively small because the amount of air required to push the ejector pin 42 is relatively small; the air inlet end of the fan 721 is connected to another bypass pipe, and a pressure relief valve is installed at the air outlet so that air can be sucked in from the bypass and excess air can be discharged.

[0034] It can be understood that one three-port pipe 722 matches one gas column 71 so that each gas column 71 can act independently; the valves on the three-port pipe 722 correspond.

[0035] According to the above configuration, the device uses a fan 721 to achieve the effect of pushing the ejector pin 42 upward or pulling the ejector pin 42 downward by negative pressure, and this can be achieved simply by controlling the opening and closing of valve A and valve B.

[0036] Reference Figure 3 In one embodiment of the present application, the electrical parameter troubleshooting mechanism 5 includes a vertical plate 51 , a test lead extension column 52 , a limiting sleeve 53 and a horizontal pushing mechanism 54 .

[0037] The test lead extension posts 52 are transversely and vertically fixed to the vertical plates 51, and the number is at least the same as the number of the cross rails 2. Two vertical plates 51 form a group and are respectively located on two symmetrical sides of the cross rails 2. The limit sleeves 53 can be matched in number to the test lead extension posts 52, and the limit sleeves 53 are fixed on the vertical plates 51 and cover the test lead extension posts 52.

[0038] The probe extension column 52 is used to contact the coupler pin after extending out of the limit sleeve 53. The vertical plate 51 is fixed to the pushing part of the horizontal pushing mechanism 54, which can be a screw slide, and the motor of the horizontal pushing mechanism 54 is electrically connected to the integrated controller 6. The two laterally symmetrical probe extension columns 52 are respectively connected to the two probes of the multimeter, and the multimeter data is connected to the integrated controller 6.

[0039] After completing the visual information collection, the camera moves away; the horizontal push mechanism 54 drives the vertical plate 51 to move toward the cross guide rail 2, so that the test lead extension column contacts the pin in the coupler cylinder to measure its resistance, etc.

[0040] It should be noted that the limiting sleeve 53 abuts against the outer end of the coupler cylinder when the coupler pin normally contacts the test lead extension column 52 to prevent the coupler from being damaged by excessive pushing.

[0041] Furthermore, a pressure sensor 8 (thin film pressure sensor) is fixed on the surface of the vertical plate 51, and a limit sleeve 53 is fixed on the outer side of the thin film pressure sensor. The pressure sensor 8 is electrically connected to the integrated controller 6, so that the integrated controller 6 can determine whether the horizontal pushing mechanism 54 is pushed into place according to the pressure change.

[0042] The setting of the above-mentioned limit sleeve 53 also has another function: if the length of the pin is insufficient, the pin cannot contact the test lead extension column 52, resulting in completely different test results; therefore, the device can also be used to detect whether the length of the pin is sufficient.

[0043] In another embodiment of the device, a pin hole is provided at one end of the test lead extension column 52 facing the cross guide rail 2, that is, the pin can be inserted into the test lead extension column 52 under normal circumstances, which helps to ensure effective contact with the pin.

[0044] In one embodiment of the present device, a blowing mechanism is provided to separate unqualified couplers. The blowing mechanism includes an air nozzle 9 and a valve C. The air nozzle 9 is fixed on the cross guide rail 2 by a bracket, and the air outlet end is laterally directed below the lower port of the cross guide rail; the air nozzle 9 is connected to the air outlet of the fan 721 through a pipeline, and the valve C is installed on the pipeline of the air nozzle 9 and is electrically connected to the integrated controller 6.

[0045] If the wind force of the fan 721 is insufficient, the air nozzle 9 can select the compressor to supply air independently. When it is determined that a certain coupler is unqualified, the integrated controller 6 opens the valve C and blows the coupler away from the cross guide 2 by blowing air.

[0046] It can be understood that a container is placed under each cross guide rail 2 to receive a qualified coupler.

[0047] The embodiment of the present application also discloses a batch inspection method for performing quality inspection during the falling process of optical fiber components.

[0048] A batch inspection method for performing quality inspection during the falling process of optical fiber components uses any of the batch inspection devices for performing quality inspection during the falling process of optical fiber components as described above to perform quality inspection on the coupler.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A batch inspection device for quality inspection during the falling process of optical fiber components, characterized in that: include: The component separation plate (1) is provided with a plurality of material matching openings whose contours match the top view contour of the coupler; Cross guide rails (2), the number of which is the same as the number of the material ports and is located below the material ports; A visual module (3) located on the side of the cross guide (2) and used to collect an end view image of the cross guide (2) passing through the coupler; A top support (4) for stopping the coupler in the cross guide (2); An electrical parameter checking mechanism (5) for performing an electrical check on a coupler passing through the cross guide rail (2); An integrated controller (6) electrically connected to the visual module (3) and the electrical parameter troubleshooting mechanism (5); The cross guide rail (2) is arranged vertically and each side has an opening opened in the height direction, and the integrated controller (6) is configured as follows: Compare the real-time image with the preset standard image, and output the coupler quality inspection result 1 according to the image comparison result; The real-time power-on feedback is compared with the preset standard electrical parameters, and the second quality inspection result of the coupler is output according to the electrical parameter comparison result.

2. The batch inspection device for quality inspection of optical fiber components during their falling process according to claim 1, characterized in that: The support (4) comprises a needle plate (41), a push pin (42) and an electric push cylinder (43); the push pin (42) is vertically arranged on the needle plate (41) and extends into the cross guide rail (2); two push pins (42) flush with each other are arranged in one cross guide rail (2); the push pin (42) extends into a groove in the cross guide rail (2) for the coupler cylinder to pass through; the two push pins (42) in the same cross guide rail (2) form a pair and are connected in series in circuit structure; the electric push cylinder (43) is vertically arranged and the telescopic rod end is fixed to the needle plate (41); the integrated controller (6) is electrically connected to the push pin (42) and is configured to determine whether the coupler posture is correct based on the power-on feedback of each pair of push pins (42).

3. The batch inspection device for quality inspection during the falling process of optical fiber components according to claim 2, characterized in that: The needle plate (41) is provided with an air column (71), the number of the air columns (71) is the same as the number of the ejector pins (42), and the lower end of the ejector pin (42) is vertically slidably connected to the air column (71); the air column (71) is connected to an air pumping mechanism (72) through an air pipe, and an electromagnetic valve (73) is installed on the air pipe, and the electromagnetic valve (73) is electrically connected to an integrated controller (6), and the integrated controller (6) is configured to control the corresponding electromagnetic valve (73) to open if the posture of the coupler is wrong.

4. The batch inspection device for quality inspection of optical fiber components during their falling process according to claim 3, characterized in that: The air pumping mechanism (72) comprises a fan (721), a three-port pipe (722), a valve A and a valve B. The number of the three-port pipes (722) is the same as the number of the air columns (71). One port of the three-port pipe (722) is connected to the air inlet end of the fan (721), one port is connected to the air outlet end of the fan (721), and the other port is used to connect to the air pipe of the air column (71). The valve A is installed on one port of the three-port pipe (722) connected to the air inlet end of the fan (721), and the valve B is installed on one port of the three-port pipe (722) connected to the air outlet end of the fan (721). The valve A and the valve B are respectively electrically connected to the integrated controller (6).

5. The batch inspection device for quality inspection during the falling process of optical fiber components according to claim 1, characterized in that: The electrical parameter troubleshooting mechanism (5) comprises a vertical plate (51), a test lead extension column (52), a limiting sleeve (53) and a horizontal pushing mechanism (54). The test lead extension column (52) is transversely and vertically fixed to the vertical plate (51) and the number of the test lead extension column (52) is at least the same as the number of the cross guide rail (2). The two vertical plates (51) form a group and are respectively located on two symmetrical sides of the cross guide rail (2). The limiting sleeve (53) is fixed on the vertical plate (51) and covers the test lead extension column (52). After the test lead extension column (52) extends out of the limiting sleeve (53), it is used to contact the pin of the coupler. The vertical plate (51) is fixed to the pushing part of the horizontal pushing mechanism (54). The horizontal pushing mechanism (54) is electrically connected to the integrated controller (6).

6. The batch inspection device for quality inspection during the falling process of optical fiber components according to claim 5, characterized in that: A pin hole is formed at one end of the test lead extension column (52) facing the cross guide rail (2).

7. The batch inspection device for quality inspection during the falling process of optical fiber components according to claim 4, characterized in that: The integrated controller (6) is also electrically connected to a blow-off mechanism, the blow-off mechanism comprising an air nozzle (9) and a valve C, the air outlet end of the air nozzle (9) being laterally oriented below the lower port of the cross guide rail (2), the air nozzle (9) being connected to an air outlet of the fan (721) via a pipeline, and the valve C being mounted on the pipeline of the air nozzle (9) and electrically connected to the integrated controller (6).

8. A batch inspection method for quality inspection of optical fiber components during their falling process, characterized in that: The quality of the coupler is inspected using a batch inspection device for performing quality inspection during the falling process of the optical fiber assembly as described in any one of claims 1 to 7.

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