An automatic detection system for cracks on the surface of optical fiber connectors

Abstract

The present invention discloses an automatic detection system for cracks on the surface of an optical fiber connector, comprising a workbench, a fixed block, a conveying member and a holding assembly. The holding mechanism clamps a workpiece through the guidance of a guide plate to reach a detection area for detection, and a holding seat, a positioning assembly arranged in the holding seat and a movable assembly are provided in the holding mechanism. The automatic detection system for cracks on the surface of an optical fiber connector uses automation to automatically detect cracks on the surface of the optical fiber connector, and the surface of the optical fiber connector is photographed by a first camera and a second camera to ensure that all optical fiber connectors shipped from the factory are qualified products. The optical fiber connector is continuously conveyed by a conveying member, and the optical fiber connector is installed on the conveying member through a holding mechanism, which can not only quickly clamp the optical fiber connector, but also push the sliding head through an unlocking member to achieve detection completion. The optical fiber connector falls from the holding mechanism, thereby improving the detection efficiency.

Description

Technical Field

[0001] The invention relates to a surface crack detection technology, in particular to an automatic detection system for surface cracks of an optical fiber connector. Background Art

[0002] With the large-scale construction of data centers around the world, the demand for single-core fiber optic connectors (fiber optic patch cords) has increased dramatically, which not only puts forward requirements on the quality and cost of single-core fiber optic connectors, but also poses challenges to the supply speed of single-core fiber optic connectors.

[0003] At present, in order to ensure that the quality of single-core fiber optic connectors can meet the standard requirements of the product, the testing of single-core fiber optic connectors generally needs to go through four process flows, namely: end face detection process one, insertion loss test process, 3D interference detection process and end face detection process two. In addition, for each process, for one test device, the number of corresponding testers increases, the labor cost increases, and there is also a phenomenon that different test equipment will cause defects in the appearance of the product and need to be reworked, resulting in a low one-time pass rate of the product based on standard requirements, which seriously affects the production efficiency of single-core fiber optic connectors and cannot ensure the supply speed of single-core fiber optic connectors.

[0004] It is necessary to ensure that all fiber optic connectors leaving the factory are qualified products. If random inspection is used, it cannot be ensured that all products leaving the factory are qualified products. Summary of the invention

[0005] In order to solve the defects of the prior art mentioned above, the present invention proposes an automatic detection system for cracks on the surface of an optical fiber connector.

[0006] The technical solution of the present invention is achieved in this way:

[0007] An automatic detection system for cracks on the surface of an optical fiber connector, comprising:

[0008] A workbench is provided with a bracket on the workbench, a first camera is provided on the bracket, a second camera is provided inside the workbench, the second camera is located at the lower end of the first camera, and a detection area is formed between the first camera and the second camera.

[0009] A fixed block is arranged on the workbench, and a guide plate is arranged on the fixed block.

[0010] The conveyor is located at the upper end of the guide plate, and the conveyor is provided with multiple holding mechanisms. The holding mechanisms clamp the workpiece through the guidance of the guide plate to the detection area for detection.

[0011] The holding mechanism is provided with a holding seat, a positioning assembly and a movable assembly arranged in the holding seat, the holding seat is installed on the conveying member, the holding seat is provided with a mounting groove, parts of the positioning assembly and the movable assembly are arranged in the mounting groove, and the holding seat is provided with a stopper.

[0012] The movable component is provided with a movable part, a pushing part and a sliding part, the positioning component limits the position where the sliding part is pushed, one end of the movable part is hinged on the retaining seat, and the middle is hingedly connected to the pushing part, one end of the pushing part is hinged on the retaining seat, and the other end is hingedly connected to the sliding part, the movable part is guided by the guide plate to push the pushing part to rotate, and the holding pushing part pushes the sliding part in the installation groove close to the stop block, and a clamping area for clamping the workpiece is formed between the stop block and the sliding part.

[0013] In the present invention, the guide plate is composed of a guide inclined plate and a guide flat plate, and the movable member slides from the guide inclined plate to the guide flat plate.

[0014] In the present invention, the movable part is composed of an arc segment, a movable segment and a positioning arm symmetrically arranged on the movable segment, a movable area is formed between the positioning arms, the pushing member is arranged in the movable area, the mounting groove is provided with symmetrically arranged notches, and the end of the positioning arm is hinged in the notch through a first hinge rod.

[0015] In the present invention, the pushing member is composed of a first hinged end, a horizontal section and an inclined section. The retaining seat is provided with a second hinged end. The first hinged end and the second hinged end are hingedly connected by a second hinged rod. A hinged portion is provided in the middle of the positioning arm. The hinged portion and the middle of the inclined section are hingedly connected by a third hinged rod. The inclined section is provided with a first strip groove, and the third hinged rod is arranged in the first strip groove.

[0016] In the present invention, the sliding member is composed of a sliding block, a limit block and a locking block. The clamping area is formed between the sliding block and the stop block. The limit block and the locking block are arranged in the installation groove. The sliding block is connected to the locking block through the limit block. The locking block is provided with a plurality of first teeth. A third hinged end is provided at one end of the locking block. A fourth hinged end is provided on the horizontal section. The third hinged end and the fourth hinged end are hingedly connected via a fourth hinge rod.

[0017] In the present invention, a movable groove is provided on the fourth hinged end, the third hinged end is arranged in the movable groove, a second strip groove is provided on the fourth hinged end, and the fourth hinge rod is arranged in the second strip groove.

[0018] In the present invention, a hinge port is provided on the first hinged end, and an elastic member is provided in the hinge port. The elastic member consists of an arc portion and an elastic portion. The elastic portion is arranged in an arc shape, one end of the elastic portion is in contact with the horizontal section, a mounting hole is formed in the middle of the arc portion, and the second hinge rod is arranged in the mounting hole.

[0019] In the present invention, a locking wheel and a locking member are provided in the positioning assembly, a fifth hinged rod is provided in the middle of the locking wheel, the fifth hinged rod is installed on a retaining seat, a sixth hinged rod is provided at one end of the locking member, and a sliding rod is provided at the other end, a third strip groove and an arc groove are provided on the retaining seat, the sixth hinged rod is arranged in the third strip groove, the sliding rod is arranged in the arc groove, sliding heads are provided at both ends of the sliding rod, and the sliding heads are arranged on the outer wall of the retaining seat.

[0020] In the present invention, the locking wheel is composed of a first disk body and a second disk body symmetrically arranged on both sides of the first disk body, the diameter of the first disk body is smaller than the diameter of the second disk body, the first disk body is provided with a second tooth that cooperates with the first tooth, the second disk body is provided with a third tooth, a sliding area is formed between the second disk body and the second disk body, and the locking block is arranged in the sliding area.

[0021] In the present invention, the locking member is composed of symmetrical limiting blocks, the middle of the limiting blocks forms a passing area for the locking block to slide, the passing area is provided with symmetrically arranged connecting blocks, the limiting blocks are provided with fourth teeth that cooperate with the third teeth, a fixing plate and a fixing rod are provided in the mounting groove, a spring is provided between the fixing plate and one of the connecting blocks, and the sliding rod and the fixing rod are connected by a tension spring.

[0022] The optical fiber connector surface crack automatic detection system of the present invention has the following beneficial effects: the optical fiber connector surface crack automatic detection system uses automation to automatically detect the surface cracks of the optical fiber connector, and uses the first camera and the second camera to shoot the surface of the optical fiber connector to ensure that the optical fiber connectors shipped are qualified products. The optical fiber connector is continuously transmitted by the transmission member, and the optical fiber connector is installed on the transmission member through the holding mechanism, which can not only quickly clamp the optical fiber connector, but also push the sliding head through the unlocking member to realize the optical fiber connector falling from the holding mechanism after the detection is completed, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the automatic detection system for optical fiber connector surface cracks of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the transmission member, the fixed block guide plate and the holding mechanism;

[0025] Figure 3 for Figure 2 The main view;

[0026] Figure 4 for Figure 2 Schematic diagram of the holding mechanism structure;

[0027] Figure 5 for Figure 4 The main perspective view;

[0028] Figure 6 for Figure 4 Exploded diagram of

[0029] Figure 7 for Figure 6 Schematic diagram of the retaining seat structure;

[0030] Figure 8 for Figure 6 Schematic diagram of the structure of the active components in ;

[0031] Fig. 9 for Figure 8 Schematic diagram of the structure of the moving parts;

[0032] Fig.10 for Figure 8 Schematic diagram of the pusher structure;

[0033] Fig.11 for Figure 8 Schematic diagram of the sliding member structure in FIG.

[0034] Fig.12 for Figure 8 Schematic diagram of the locking wheel structure;

[0035] Fig.13 for Figure 8 A schematic diagram of the locking member structure in FIG.

[0036] Fig.14 for Fig.13 A schematic diagram of the structure in another direction;

[0037] Fig.15 for Fig.14 Exploded view in ;

[0038] Fig.16 for Figure 5 A partial enlarged view of point A in the figure.

[0039] In the figure: workbench 1, fixed block 2, conveying member 3, clamping area 4, compression area 5, guide plate 6, guide inclined plate 7, movable member 8, guide plate 9, sliding member 10, stopper 11, detection area 12, sliding head 13, third tooth 14, fourth tooth 15, tension spring 16, elastic member 17, holding seat 18, bracket 19, first camera 20, second camera 21, holding mechanism 22, positioning assembly 23, movable assembly 24, mounting groove 25, positioning part 26, mounting part 27, fixing hole 28, bolt 29, pushing member 30, locking block 31, locking wheel 32, locking member 33, spring 34, arc segment 35, movable segment 36, positioning arm 37, movable area 38, notch 39, first hinge rod 40, first hinge end 41, horizontal segment 42 , inclined section 43, second hinged end 44, second hinged rod 45, hinged portion 46, third hinged rod 47, first strip groove 48, sliding block 49, limit block 50, first tooth 51, third hinged end 52, fourth hinged end 53, fourth hinged rod 54, movable groove 55, second strip groove 56, hinge port 57, arc portion 58, elastic portion 59, mounting hole 60, blocking surface 61, arc surface 62, fifth hinged rod 63, sixth hinged rod 64, sliding rod 65, third strip groove 66, arc groove 67, first disk body 68, second disk body 69, second tooth 70, sliding area 71, fourth strip groove 72, limit block 73, through area 74, connecting block 75, fixing plate 76, fixing rod 77, horizontal plate 78, vertical plate 79, positioning column 80. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] like Figures 1 to 16 As shown, the optical fiber connector surface crack automatic detection system of the present invention comprises a workbench 1, a fixed block 2 and a conveying member 3. The fixed block 2 is arranged on the workbench 1, and the conveying member 3 is located at the upper end of the workbench 1. The conveying member 3 is used to transport the optical fiber connector to be detected. After the conveying member 3 is built, the workbench 1 is placed at the lower end of the conveying member 3. Generally, the conveying member 3 is arranged in a ring shape, so one side can be used for detection and the other side can be used for placement. When placing, the clamping area 4 of the holding mechanism 22 is in an open state. When placing, the holding mechanism 22 at this time just reaches the guide inclined plate 7 of the guide plate 6. When the placement is completed, the movable member 8 will drive the sliding member 10 to approach the stopper 11 under the guidance of the guide plate 9, thereby reducing the width of the clamping area 4, clamping the optical fiber connector to be detected, and then transferring it to the detection area 12 for detection.

[0042] Of course, the placement state of the optical fiber connector during detection can be placed according to which detection surface of the optical fiber connector needs to be detected, and when the models of the optical fiber connectors detected in a batch are consistent, there is no need to use a practical unlocking member (not shown in the figure) to push the sliding head 13. At this time, the width of the clamping area 4 is consistent, which can just clamp the optical fiber connector that needs to be detected. When it is necessary to replace the optical fiber connector of a different size, the unlocking member can be activated to push the sliding head 13, so that the third tooth 14 is separated from the fourth tooth 15, the tension spring 16 is stretched, and the sliding member 10 is pushed under the elastic force of the elastic member 17 to keep the width of the clamping area 4 larger.

[0043] The unlocking member can be set as a top block, which can push the sliding head 13 to slide in the arc groove 67 from any end of the retaining seat 18. The lower end of the unlocking member can be driven by a cylinder, and can be set to push the sliding heads 13 in multiple retaining mechanisms 22 at the same time, thereby accelerating the resetting efficiency of the retaining mechanism 22.

[0044] A support 19 is provided on the workbench 1, a first camera 20 is provided on the support 19, a second camera 21 is provided inside the workbench 1, the second camera 21 is located at the lower end of the first camera 20, and a detection area 12 is formed between the first camera 20 and the second camera 21. Both the first camera 20 and the second camera 21 can detect the surface of the optical fiber connector, thereby ensuring the accuracy and efficiency of the optical fiber connector surface detection and realizing automatic detection.

[0045] The fixed block 2 is arranged on the workbench 1, and a guide plate 6 is arranged on the fixed block 2, and the guide plate 6 is composed of a guide inclined plate 7 and a guide flat plate 9, and the movable member 8 slides from the guide inclined plate 7 to the guide flat plate 9. The length of the guide inclined plate 7 is set to be short because it is only needed when placing the optical fiber connector, and the guide flat plate 9 is to keep applying external force to one end of the movable member 8 so that the elastic member 17 is compressed.

[0046] The conveying member 3 is located at the upper end of the guide plate 6 , and a plurality of holding mechanisms 22 are provided on the conveying member 3 . The holding mechanisms 22 clamp the workpiece through the guidance of the guide plate 6 to reach the detection area 12 for detection.

[0047] The holding mechanism 22 is provided with a holding seat 18, a positioning component 23 arranged in the holding seat 18, and a movable component 24. The holding seat 18 is installed on the conveying member 3. The holding seat 18 is provided with a mounting groove 25. Parts of the positioning component 23 and the movable component 24 are arranged in the mounting groove 25. The holding seat 18 is provided with a stopper 11.

[0048] The retaining seat 18 is provided with a positioning portion 26 and a mounting portion 27 . A fixing hole 28 matching the positioning portion 26 is provided on the conveying member 3 , and then the conveying member 3 is fixed thereto through the mounting portion 27 . The mounting portion 27 can be fixed to the conveying member 3 by bolts 29 .

[0049] The movable component 24 is provided with a movable part 8, a pushing part 30 and a sliding part 10. The positioning component 23 limits the position where the sliding part 10 is pushed. When the sliding part 10 is pushed by the pushing part 30, the locking block 31 drives the locking wheel 32 to rotate, so that the locking wheel 32 pushes the locking part 33, so that the third tooth 14 continuously pushes the fourth tooth 15 and compresses the spring 34. After the spring 34 is compressed, the third tooth 14 will pass over the fourth tooth 15, thereby achieving different meshing limits of the third tooth 14 and the fourth tooth 15, thereby keeping the size of the clamping area 4 shrinking.

[0050] One end of the movable member 8 is hinged on the retaining seat 18, and the middle is hingedly connected to the pusher 30. One end of the pusher 30 is hinged on the retaining seat 18, and the other end is hingedly connected to the sliding member 10. The movable member 8 is guided by the guide plate 6 to push the pusher 30 to rotate, and the pusher 30 is kept to push the sliding member 10 in the installation groove 25 to approach the stopper 11, and a clamping area 4 for clamping the workpiece is formed between the stopper 11 and the sliding member 10.

[0051] The movable member 8 is composed of an arc segment 35, a movable segment 36 and a positioning arm 37 symmetrically arranged on the movable segment 36. A movable area 38 is formed between the positioning arms 37 and the pusher 30 is arranged in the movable area 38. A symmetrically arranged notch 39 is provided at the mounting groove 25, and the end of the positioning arm 37 is hinged in the notch 39 through a first hinge rod 40.

[0052] The pusher 30 is composed of a first hinge end 41, a horizontal section 42 and an inclined section 43. The retaining seat 18 is provided with a second hinge end 44, the first hinge end 41 and the second hinge end 44 are hingedly connected via a second hinge rod 45, a hinge portion 46 is provided in the middle of the positioning arm 37, and the hinge portion 46 is hingedly connected to the middle of the inclined section 43 via a third hinge rod 47.

[0053] A first strip groove 48 is provided on the inclined section 43, and the third hinge rod 47 is arranged in the first strip groove 48. Since the third hinge rod 47 is in the first strip groove 48, when one end of the movable member 8 is pushed by the guide plate 9, the arc section 35 will rotate around the first hinge rod 40, push the pushing member 30, and keep the third hinge rod 47 moving in the first strip groove 48.

[0054] The sliding member 10 is composed of a sliding block 49, a limiting block 50 and a locking block 31. A clamping area 4 is formed between the sliding block 49 and the stopper 11. The limiting block 50 and the locking block 31 are arranged in the mounting groove 25. The sliding block 49 is connected to the locking block 31 through the limiting block 50. The locking block 31 is provided with a plurality of first teeth 51, a third hinge end 52 is provided at one end of the locking block 31, a fourth hinge end 53 is provided on the horizontal section 42, and the third hinge end 52 and the fourth hinge end 53 are hingedly connected through a fourth hinge rod 54.

[0055] The fourth hinge end 53 is provided with a movable groove 55, the third hinge end 52 is arranged in the movable groove 55, the fourth hinge end 53 is provided with a second strip groove 56, and the fourth hinge rod 54 is arranged in the second strip groove 56. Since the pusher 30 keeps rotating the second hinge rod 45 when pushing the sliding member 10, when the fourth hinge rod 54 is in the second strip groove 56, the fourth hinge rod 54 is kept sliding in the second strip groove 56 when pushing the sliding member 10.

[0056] The first hinge end 41 is provided with a hinge port 57, and an elastic member 17 is provided in the hinge port 57. The elastic member 17 is composed of an arc portion 58 and an elastic portion 59, and the elastic portion 59 is arranged in an arc shape. One end of the elastic portion 59 contacts the horizontal section 42, and a mounting hole 60 is formed in the middle of the arc portion 58. The second hinge rod 45 is arranged in the mounting hole 60. When the push member 30 pushes the sliding member 10, the elastic portion 59 of the elastic member 17 will be placed on the blocking surface 61 in the installation groove 25. When the elastic portion 59 is pushed by the push member 30 at an angle that is too large, the elastic portion 59 will be kept on the arc surface 62 for deformation.

[0057] The positioning assembly 23 is provided with a locking wheel 32 and a locking member 33. A fifth hinge rod 63 is provided in the middle of the locking wheel 32. The fifth hinge rod 63 is mounted on the retaining seat 18. A sixth hinge rod 64 is provided at one end of the locking member 33, and a sliding rod 65 is provided at the other end. The retaining seat 18 is provided with a third strip groove 66 and an arc groove 67. The sixth hinge rod 64 is arranged in the third strip groove 66. The sliding rod 65 is arranged in the arc groove 67. Sliding heads 13 are provided at both ends of the sliding rod 65. The sliding heads 13 are arranged on the outer wall of the retaining seat 18.

[0058] The locking wheel 32 is composed of a first plate 68 and second plates 69 symmetrically arranged on both sides of the first plate 68. The diameter of the first plate 68 is smaller than the diameter of the second plate 69. The first plate 68 is provided with a second tooth 70 that matches the first tooth 51, and the second plate 69 is provided with a third tooth 14. A sliding area 71 is formed between the second plate 69 and the second plate 69, and the locking block 31 is arranged in the sliding area 71.

[0059] A fourth strip groove 72 is provided at the arc groove 67 , so that the sliding rod 65 slides in the fourth strip groove 72 , so that the locking member 33 compresses the spring 34 as a whole, and the third tooth 14 is disengaged from the fourth tooth 15 .

[0060] The locking member 33 is composed of symmetrical limiting blocks 73, the middle of the limiting blocks 73 forms a passing area 74 for the locking block 31 to slide, and a symmetrically arranged connecting block 75 is arranged in the passing area 74. The limiting block 73 is provided with a fourth tooth 15 that cooperates with the third tooth 14, and a fixing plate 76 and a fixing rod 77 are arranged in the installation groove 25. A spring 34 is arranged between the fixing plate 76 and one of the connecting blocks 75, and the sliding rod 65 and the fixing rod 77 are connected by a tension spring 16. And the elastic force of the tension spring 16 is smaller than the elastic force of the spring 34.

[0061] The fixing plate 76 is composed of a transverse plate 78 and a vertical plate 79. The vertical plate 79 is installed in the installation groove 25, and the transverse plate 78 is arranged between the connecting blocks 75 and the connecting blocks 75. A positioning column 80 is provided on one of the connecting blocks 75 and the transverse plate 78, and the spring 34 is arranged outside the positioning column 80, and a compression area 5 is formed between one of the connecting blocks 75 and the transverse plate 78.

[0062] like Figure 5 and 16 As shown, when the movable member 8 is guided by the guide plate 6, it reaches the guide flat plate 9 from the guide inclined plate 7, so that the guide flat plate 9 pushes the arc segment 35 of the movable member 8 to move in the direction of F1. Since the other end of the movable member 8 is hinged on the retaining seat 18, it is in a state of being immovable, but can rotate. One end of the pusher 30 is hinged on the second hinge end 44, and is also in a state of being immovable, but can rotate, so the pusher 30 can rotate around the second hinge rod 45, push the sliding member 10 to slide in the installation groove 25, change the size of the clamping area 4, and thus facilitate the clamping of the photovoltaic connector to be tested.

[0063] When the first tooth 51 on the sliding member 10 is meshed with the second tooth 70 on the first plate 68, the sliding member 10 will push the locking wheel 32 to rotate, so that the third tooth 14 is meshed with the fourth tooth 15, and the locking wheel 32 continuously pushes the locking member 33, compressing the spring 34, and the sixth hinge rod 64 slides in the third strip groove 66, so that the third tooth 14 continuously pushes the fourth tooth 15, keeping the sliding rod 65 sliding in the fourth strip groove 72, so that the locking wheel 32 can push the locking member 33 clockwise, but cannot push the locking member 33 counterclockwise.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic detection system for optical fiber connector surface cracks, characterized in that: include: A workbench is provided with a bracket on the workbench, a first camera is provided on the bracket, a second camera is provided inside the workbench, the second camera is located at the lower end of the first camera, and a detection area is formed between the first camera and the second camera. A fixed block is arranged on the workbench, and a guide plate is arranged on the fixed block. The conveyor is located at the upper end of the guide plate, and the conveyor is provided with multiple holding mechanisms. The holding mechanisms clamp the workpiece through the guidance of the guide plate to the detection area for detection. The holding mechanism is provided with a holding seat, a positioning assembly and a movable assembly arranged in the holding seat, the holding seat is installed on the conveying member, the holding seat is provided with a mounting groove, parts of the positioning assembly and the movable assembly are arranged in the mounting groove, and the holding seat is provided with a stopper. The movable component is provided with a movable part, a pushing part and a sliding part, the positioning component limits the position where the sliding part is pushed, one end of the movable part is hinged on the retaining seat, and the middle is hingedly connected to the pushing part, one end of the pushing part is hinged on the retaining seat, and the other end is hingedly connected to the sliding part, the movable part is guided by the guide plate to push the pushing part to rotate, and the holding pushing part pushes the sliding part in the installation groove close to the stop block, and a clamping area for clamping the workpiece is formed between the stop block and the sliding part.

2. The optical fiber connector surface crack automatic detection system according to claim 1, characterized in that: The guide plate is composed of a guide inclined plate and a guide flat plate, and the movable member slides from the guide inclined plate to the guide flat plate.

3. The optical fiber connector surface crack automatic detection system according to claim 1, characterized in that: The movable part is composed of an arc segment, a movable segment and a positioning arm symmetrically arranged on the movable segment. A movable area is formed between the positioning arms. The pushing member is arranged in the movable area. The mounting groove is provided with symmetrically arranged notches. The end of the positioning arm is hinged in the notch through a first hinge rod.

4. The optical fiber connector surface crack automatic detection system according to claim 3, characterized in that: The pushing member consists of a first hinged end, a horizontal section and an inclined section. The retaining seat is provided with a second hinged end. The first hinged end and the second hinged end are hingedly connected via a second hinged rod. A hinged portion is provided in the middle of the positioning arm. The hinged portion and the middle of the inclined section are hingedly connected via a third hinged rod. The inclined section is provided with a first strip groove, and the third hinged rod is arranged in the first strip groove.

5. The optical fiber connector surface crack automatic detection system according to claim 4, characterized in that: The sliding member is composed of a sliding block, a limit block and a locking block. The clamping area is formed between the sliding block and the stop block. The limit block and the locking block are arranged in the installation groove. The sliding block is connected to the locking block through the limit block. The locking block is provided with a plurality of first teeth. A third hinged end is provided at one end of the locking block. A fourth hinged end is provided on the horizontal section. The third hinged end and the fourth hinged end are hingedly connected through a fourth hinge rod.

6. The optical fiber connector surface crack automatic detection system according to claim 5, characterized in that: The fourth hinged end is provided with a movable groove, the third hinged end is arranged in the movable groove, the fourth hinged end is provided with a second strip groove, and the fourth hinged rod is arranged in the second strip groove.

7. The optical fiber connector surface crack automatic detection system according to claim 4, characterized in that: A hinge port is provided on the first hinged end, and an elastic member is provided in the hinge port. The elastic member consists of an arc portion and an elastic portion. The elastic portion is arranged in an arc shape, one end of the elastic portion is in contact with the horizontal section, a mounting hole is formed in the middle of the arc portion, and the second hinge rod is arranged in the mounting hole.

8. The optical fiber connector surface crack automatic detection system according to claim 5, characterized in that: A locking wheel and a locking piece are provided in the positioning assembly, a fifth hinged rod is provided in the middle of the locking wheel, the fifth hinged rod is installed on a retaining seat, a sixth hinged rod is provided at one end of the locking piece, and a sliding rod is provided at the other end, a third strip groove and an arc groove are provided on the retaining seat, the sixth hinged rod is arranged in the third strip groove, the sliding rod is arranged in the arc groove, sliding heads are provided at both ends of the sliding rod, and the sliding heads are arranged on the outer wall of the retaining seat.

9. The optical fiber connector surface crack automatic detection system according to claim 8, characterized in that: The locking wheel consists of a first disk body and a second disk body symmetrically arranged on both sides of the first disk body. The diameter of the first disk body is smaller than the diameter of the second disk body. The first disk body is provided with a second tooth that cooperates with the first tooth. The second disk body is provided with a third tooth. A sliding area is formed between the second disk body and the second disk body, and the locking block is arranged in the sliding area.

10. The optical fiber connector surface crack automatic detection system according to claim 9, characterized in that: The locking member is composed of symmetrical limiting blocks, the middle of the limiting blocks forms a passing area for the locking block to slide, the passing area is provided with symmetrically arranged connecting blocks, the limiting blocks are provided with fourth teeth that cooperate with the third teeth, a fixing plate and a fixing rod are provided in the mounting groove, a spring is provided between the fixing plate and one of the connecting blocks, and the sliding rod and the fixing rod are connected by a tension spring.

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