A kind of all-around crack visual detection device

Abstract

The utility model relates to machine vision technical field discloses a kind of all-around crack visual inspection devices, including support, the top of the support is fixedly connected with workbench, the top of the workbench is fixedly connected with guide plate, the inside sliding connection of the guide plate has workpiece, the outside of the workpiece is provided with locating block, the bottom of the locating block is slidingly connected in the top of workbench, the top of the workbench is fixedly connected with camera assembly, the outside of the workbench is fixedly connected with conveying mechanism, the conveying mechanism includes motor, the output of the motor is connected with conveying assembly, the outside of the conveying assembly is fixedly connected in the outside of locating block.In the utility model, motor drives conveying assembly to rotate, thereby driving conveying assembly and locating block to slide, when workpiece is brought to camera assembly between and is detected by photographing, and then the efficiency of detection automation and detection can be improved, to avoid the effect of surface pollution caused by human contact.

Description

Technical Field

[0001] This utility model relates to the field of machine vision technology, and in particular to an all-around crack visual detection device. Background Technology

[0002] In the industrial manufacturing process, cracks and defects on the surface of workpieces directly affect the mechanical properties, safety, and service life of products. Therefore, crack detection is one of the core processes in product quality control. As the manufacturing industry develops towards automation and precision, machine vision detection technology, with its advantages of non-contact operation, high sensitivity, and continuous operation, is widely used in the field of workpiece crack detection. By acquiring images of the workpiece surface through an optical imaging system and then using image processing algorithms to automatically identify and judge crack features, it has become a key technical means to improve the level of quality inspection.

[0003] In practical applications, existing machine vision crack detection devices often require manual assistance to complete the workpiece loading operation. Manual contact with the workpiece can easily lead to surface contamination with oil, fingerprints, and other pollutants, interfering with the clarity of image acquisition and thus affecting the accuracy of crack recognition, resulting in low overall efficiency and making it difficult to adapt to the batch inspection needs of modern production lines. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an all-round crack visual inspection device, which aims to improve the problem that existing crack visual inspection devices are prone to surface contamination with oil, fingerprints and other pollutants due to manual contact with workpieces.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A comprehensive crack visual inspection device includes a support frame, a worktable fixedly connected to the top of the support frame, a guide plate fixedly connected to the top of the worktable, a workpiece slidably connected inside the guide plate, a positioning block disposed outside the workpiece, the bottom end of the positioning block slidably connected to the top of the worktable, a camera assembly fixedly connected to the top of the worktable, and a conveying mechanism fixedly connected to the outside of the worktable. The conveying mechanism includes a motor, the motor is fixedly connected to the outside of the worktable, the output end of the motor is connected to a conveying component, and the conveying component is fixedly connected to the outside of the positioning block.

[0006] Through the above technical solution: the worktable fixes other components to avoid positional deviation, the top of the guide plate is relatively inclined to facilitate the sliding of the workpiece inside, the middle position of the positioning block is provided with a hole and slot to facilitate the placement of the workpiece, the three camera components can realize 360° all-round detection of cracks without blind spots, the motor is used to drive the conveying component to drive the positioning block, and the conveying mechanism can ensure that the workpiece reaches the preset detection position.

[0007] Preferably, the conveying assembly includes a gear, the inside of which is connected to the output end of the motor, the teeth of the gear are meshed with a rack, the outside of which is fixedly connected to the outside of the positioning block, and the bottom end of the rack is slidably connected to the top of the worktable.

[0008] Preferably, the conveying mechanism further includes a first electric push rod, the tail end of which is fixedly connected to the outside of the worktable, and the output end of which is connected to the outside of the positioning block.

[0009] Preferably, a slide rod is fixedly connected to the outside of the guide plate, and a second electric push rod is fixedly connected to the outside of the slide rod. A baffle is connected to the output end of the second electric push rod.

[0010] Preferably, one end of the baffle is slidably connected to the inside of the slide rod, and the bottom end of the baffle is disposed at one end of the guide plate.

[0011] Preferably, a first rotating block is rotatably connected inside the guide plate, a third electric push rod is fixedly connected to the outside of the first rotating block, and the output end of the third electric push rod is connected to a second rotating block.

[0012] Preferably, the external rotatable connection of the second rotating block is to the inside of the baffle.

[0013] Preferably, a hinge is fixedly connected to the bottom end of the baffle, and the hinge is externally fixedly connected to the bottom end of the guide plate.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the motor drives the conveying component to rotate, thereby causing the conveying component and the positioning block to slide. When the workpiece is brought between the camera components for photographic inspection, the automation and efficiency of the inspection can be improved, and the surface contamination caused by human contact can be avoided.

[0015] 2. In this utility model, the second electric push rod drives the baffle to slide, thereby blocking the workpiece and preventing it from slipping. In turn, it can control the workpiece inside the guide plate to slide inside the positioning block at any time, so as to ensure the orderly detection.

[0016] 3. In this utility model, three camera components are set up to take pictures of the workpiece for inspection. By comparison, the presence or absence of cracks can be identified, realizing 360° all-round detection of workpiece cracks without blind spots. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an all-around crack visual inspection device proposed in this utility model. Figure 2This is a partial structural diagram of the positioning block of an all-round crack visual inspection device proposed in this utility model; Figure 3 This is a schematic diagram of a partial gear structure of an all-around crack visual inspection device proposed in this utility model. Figure 4 This is a partial structural diagram of the first electric push rod of an all-round crack visual inspection device proposed in this utility model. Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0018] Figure 6 This is a partial structural diagram of the hinge of an all-around crack visual inspection device proposed in this utility model.

[0019] Legend: 1. Bracket; 2. Positioning block; 3. Worktable; 4. Guide plate; 5. Camera assembly; 6. Conveying mechanism; 601. Motor; 602. Rack; 603. Gear; 604. First electric push rod; 7. Workpiece; 8. Baffle; 9. Second electric push rod; 10. Slide rod; 11. First rotating block; 12. Third electric push rod; 13. Second rotating block; 14. Hinge. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1: Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides an all-around crack visual inspection device, including a support 1, a worktable 3 fixedly connected to the top of the support 1, a guide plate 4 fixedly connected to the top of the worktable 3, a workpiece 7 slidably connected inside the guide plate 4, a positioning block 2 provided outside the workpiece 7, the bottom end of the positioning block 2 slidably connected to the top of the worktable 3, a camera assembly 5 fixedly connected to the top of the worktable 3, and a conveying mechanism 6 fixedly connected to the outside of the worktable 3. The conveying mechanism 6 includes a motor 601, the outside of the motor 601 is fixedly connected to the outside of the worktable 3, the output end of the motor 601 is connected to a conveying component, and the outside of the conveying component is fixedly connected to the outside of the positioning block 2. Specifically, bracket 1 supports the device to ensure its stability, worktable 3 fixes the positions of other components to prevent deviations, a fixing block is set at the top of worktable 3 to fix the position of motor 601, the surface of guide plate 4 is smooth and a trapezoidal fixing plate is set at the bottom, making the top of guide plate 4 relatively inclined, so that workpiece 7 can slide inside it, a slot is set in the middle of positioning block 2 to facilitate the placement of workpiece 7, and under the drive of motor 601 and conveying component, workpiece 7 is moved to the shooting range of camera component 5, a fixing block is set at the bottom of camera component 5 to fix it to worktable 3, and an adjustment component for adjusting the top camera is set in the middle of camera component 5 to adjust the camera angle, so that the three camera components 5 can achieve 360° all-round crack detection without blind spots, motor 601 drives conveying component to drive positioning block 2, and conveying mechanism 6 ensures that workpiece 7 can reach the preset detection position every time, so as to improve detection efficiency.

[0022] Reference Figure 2 and Figure 3 The transmission component includes a gear 603, the inside of which is connected to the output end of the motor 601. The tooth end of the gear 603 is meshed with a rack 602. The outside of the rack 602 is fixedly connected to the outside of the positioning block 2. The bottom end of the rack 602 is slidably connected to the top of the worktable 3. Specifically, in this embodiment, the gear 603 is used to drive the rack 602 to slide smoothly on the top of the worktable 3. The bottom end of the rack 602 is a slide rod 10 that is slidably connected to the worktable 3, and the top end is provided with teeth that mesh with the gear 603. Driven by the motor 601, the workpiece 7 inside the positioning block 2 is conveyed, thereby improving the effect of automated detection.

[0023] Example 2: Reference Figure 4 The conveying mechanism 6 also includes a first electric push rod 604, the tail end of which is fixedly connected to the outside of the worktable 3, and the output end of which is connected to the outside of the positioning block 2. Specifically, in this embodiment, the tail end of the first electric push rod 604 is fixed to the outside of the fixed block set at the top of the worktable 3. The output end of the first electric push rod 604 can directly drive the positioning block 2 to slide on the top of the worktable 3, thereby directly conveying the workpiece 7 inside the positioning block 2 to achieve the effect of precise conveying.

[0024] Example 3: Reference Figure 3A slide rod 10 is fixedly connected to the outside of the guide plate 4, and a second electric push rod 9 is fixedly connected to the outside of the slide rod 10. A baffle 8 is connected to the output end of the second electric push rod 9. One end of the baffle 8 is slidably connected to the inside of the slide rod 10, and the bottom end of the baffle 8 is set at one end of the guide plate 4. Specifically, in this embodiment, a fixing block is provided at the top of the slide rod 10 to fix the position of the second electric push rod 9. A sliding groove is provided inside the slide rod 10 to facilitate the sliding of the slider provided at one end of the baffle 8 inside the slide rod 10. The baffle 8 is used to block the workpiece 7 inside the guide plate 4, thereby achieving the effect of whether the workpiece 7 can slide into the positioning block 2.

[0025] Example 4: Reference Figure 4 , Figure 5 and Figure 6 The guide plate 4 is rotatably connected to a first rotating block 11, and the first rotating block 11 is fixedly connected to a third electric push rod 12. The output end of the third electric push rod 12 is connected to a second rotating block 13. The second rotating block 13 is rotatably connected to the inside of the baffle 8. The bottom end of the baffle 8 is fixedly connected to a hinge 14, and the hinge 14 is fixedly connected to the bottom end of the guide plate 4. Specifically, in this embodiment, the first rotating block 11 and the second rotating block 13 have similar structures, both consisting of a cylindrical fixed block and a square fixed block. The hinge 14 provides a fulcrum when the baffle 8 flips, making the baffle 8 more stable when rotating. When the third electric push rod 12 pushes the second rotating block 13 to rotate, the first rotating block 11 will also be driven to avoid the third electric push rod 12 from malfunctioning during operation. Thus, the second rotating block 13 drives the baffle 8 to rotate, thereby controlling the workpiece 7 inside the guide plate 4 to slide into the positioning block 2 at any time under the control of the third electric push rod 12, achieving the effect of reducing manual intervention and improving work efficiency.

[0026] Working principle: When crack detection is required, workpiece 7 is conveyed into the interior of guide plate 4, allowing it to slide along the inside of guide plate 4 into the interior of positioning block 2. Motor 601 is activated, driving gear 603 to rotate, which in turn drives rack 602 to slide at the top of worktable 3, thereby causing positioning block 2 to slide at the top of worktable 3. When workpiece 7 is conveyed between the three camera components 5, it is photographed for inspection, thereby improving the automation and efficiency of inspection and avoiding surface contamination caused by human contact. Furthermore, the three camera components 5 can photograph and inspect workpiece 7, identifying the presence or absence of cracks through comparison, achieving 360° all-round crack detection of workpiece 7 without blind spots. When the workpiece 7 inside the positioning block 2 is being inspected, and it is necessary to prevent the workpiece 7 inside the guide plate 4 from slipping, the second electric push rod 9 is activated to drive the baffle 8 to slide into the slide rod 10, thereby causing the baffle 8 to slide to one end of the guide plate 4, thus preventing the workpiece 7 inside the guide plate 4 from slipping. When the positioning block 2 returns to receive the workpiece 7 inside the guide plate 4, the second electric push rod 9 is activated to drive the baffle 8 to slide into the slide rod 10, thereby causing the baffle 8 to move away from one end of the guide plate 4, thus causing the workpiece 7 inside the guide plate 4 to slide into the positioning block 2. This allows the workpiece 7 inside the guide plate 4 to slide into the positioning block 2 at any time, achieving the effect of ensuring the orderly inspection.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 360-degree crack visual inspection device, comprising a support (1), characterized in that: The top of the bracket (1) is fixedly connected to a workbench (3), the top of the workbench (3) is fixedly connected to a guide plate (4), the inside of the guide plate (4) is slidably connected to a workpiece (7), the outside of the workpiece (7) is provided with a positioning block (2), the bottom end of the positioning block (2) is slidably connected to the top of the workbench (3), the top of the workbench (3) is fixedly connected to a camera assembly (5), the outside of the workbench (3) is fixedly connected to a conveying mechanism (6), the conveying mechanism (6) includes a motor (601), the outside of the motor (601) is fixedly connected to the outside of the workbench (3), the output end of the motor (601) is connected to a conveying component, and the outside of the conveying component is fixedly connected to the outside of the positioning block (2).

2. The all-around crack visual inspection device according to claim 1, characterized in that: The transmission assembly includes a gear (603), the inside of which is connected to the output end of the motor (601), the tooth end of the gear (603) is meshed with a rack (602), the outside of which is fixedly connected to the outside of the positioning block (2), and the bottom end of the rack (602) is slidably connected to the top of the worktable (3).

3. The all-around crack visual inspection device according to claim 1, characterized in that: The conveying mechanism (6) further includes a first electric push rod (604), the tail end of which is fixedly connected to the outside of the worktable (3), and the output end of which is connected to the outside of the positioning block (2).

4. The all-around crack visual inspection device according to claim 1, characterized in that: The guide plate (4) is fixedly connected to a slide rod (10), and the slide rod (10) is fixedly connected to a second electric push rod (9). The output end of the second electric push rod (9) is connected to a baffle (8).

5. The all-around crack visual inspection device according to claim 4, characterized in that: One end of the baffle (8) is slidably connected to the inside of the slide rod (10), and the bottom end of the baffle (8) is located at one end of the guide plate (4).

6. The all-around crack visual inspection device according to claim 1, characterized in that: The guide plate (4) is rotatably connected to a first rotating block (11), and the first rotating block (11) is fixedly connected to a third electric push rod (12) on the outside. The output end of the third electric push rod (12) is connected to a second rotating block (13).

7. The all-around crack visual inspection device according to claim 6, characterized in that: The external rotation of the second rotating block (13) is rotatably connected to the inside of the baffle (8).

8. The all-around crack visual inspection device according to claim 7, characterized in that: The bottom end of the baffle (8) is fixedly connected to a hinge (14), and the outside of the hinge (14) is fixedly connected to the bottom end of the guide plate (4).

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