Detection device

Abstract

The application provides a detection device, and relates to the technical field of defect detection. The detection device comprises a detection device and an auxiliary grabbing mechanism. The detection device comprises a front surface detection mechanism, a back surface detection mechanism and a side surface detection mechanism which are sequentially and spacedly arranged along an A direction. A first variable power lens in the front surface detection mechanism is arranged above a first auxiliary assembly for carrying a workpiece. A second variable power lens in the back surface detection mechanism is arranged below a second auxiliary assembly for carrying a workpiece. A third variable power lens in the side surface detection mechanism is arranged on one side of a third auxiliary assembly for carrying a workpiece. The auxiliary grabbing mechanism is arranged on one side of the detection device. The auxiliary grabbing mechanism is used for grabbing the same workpiece and sequentially placing the workpiece on the first auxiliary assembly, the second auxiliary assembly and the third auxiliary assembly. The detection device can improve the comprehensiveness of detection, shorten the detection cycle and improve the detection efficiency when detecting defects on multiple surfaces of the workpiece.

Description

Technical Field

[0001] This application relates to the field of defect detection technology, and in particular to a detection device. Background Technology

[0002] In modern industrial production, ensuring the quality of workpieces is crucial, and defect detection is a key step in achieving this goal. Optical inspection devices are widely used in the field of workpiece defect detection due to their advantages such as high accuracy and speed.

[0003] Currently, common optical inspection devices typically inspect only one side of a workpiece at a time when performing defect detection. For complex workpieces requiring inspection of multiple sides, the process is often cumbersome and inefficient. Operators need to repeatedly flip the workpiece and inspect each side separately to ensure that defects on all sides are detected. This method not only increases operational complexity but also may lead to missed defects on some sides, posing a potential risk to product quality. Furthermore, frequent workpiece flipping prolongs the inspection cycle, thus reducing inspection efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a detection device that can improve the comprehensiveness of detection, shorten the detection cycle, and improve detection efficiency when performing defect detection on multiple surfaces of a workpiece.

[0005] Inspection equipment, used to perform multi-directional defect inspection on a workpiece, the inspection equipment includes:

[0006] The detection device includes a front detection mechanism, a back detection mechanism, and a side detection mechanism arranged sequentially at intervals along direction A. The first zoom lens in the front detection mechanism is positioned above the first auxiliary component for supporting the workpiece, the second zoom lens in the back detection mechanism is positioned below the second auxiliary component for supporting the workpiece, and the third zoom lens in the side detection mechanism is positioned on one side of the third auxiliary component for supporting the workpiece.

[0007] An auxiliary gripping mechanism is disposed on one side of the detection device. The auxiliary gripping mechanism is used to grip the same workpiece and place it sequentially on the first auxiliary component, the second auxiliary component and the third auxiliary component.

[0008] As a further technical solution, the front detection mechanism also includes a first support component and a first light source component. The first support component includes a first support frame and a second support frame that are spaced apart from each other along the B direction. The first light source component includes a first light source and a second light source.

[0009] The first auxiliary component is disposed on the upper surface of the first support frame. The first auxiliary component is provided with a first detection area for accommodating the workpiece. The first light source and the first zoom lens are both disposed on the second support frame and are both located above the first detection area. The first light source is located between the first detection area and the first zoom lens. The second light source is disposed on the first support frame and is located below the first auxiliary component.

[0010] As a further technical solution, the front detection mechanism also includes a first adjustment component and a first adjustment drive component. The first light source and the first zoom lens are both raised and lowered on the second support frame via the first adjustment component. The first adjustment drive component is disposed on the second support frame and is connected to the first adjustment component in a transmission manner.

[0011] As a further technical solution, the back detection mechanism also includes a third support frame and a second light source assembly, wherein the second light source assembly includes a third light source and a fourth light source;

[0012] The second auxiliary component is disposed on the upper end face of the third support frame. The second auxiliary component is provided with a second detection area for accommodating the workpiece. The third light source and the second zoom lens are both disposed on the third support frame and are both located below the second detection area. The second zoom lens is located between the second detection area and the third light source. The fourth light source is disposed above the second detection area.

[0013] As a further technical solution, the back detection mechanism also includes an extension plate, with a first end disposed on the third support frame and a second end extending away from the third support frame; or, the first end of the extension plate is disposed on the second support frame and the second end extends toward the third support frame, and the fourth light source is disposed on the second end of the extension plate.

[0014] As a further technical solution, the side detection mechanism also includes a second support component and a third light source component. The second support component includes a fourth support frame and a fifth support frame that are spaced apart from each other along the B direction. The third light source component includes a fifth light source and a sixth light source.

[0015] The third auxiliary component is disposed on the upper end face of the fourth support frame. The third auxiliary component is provided with a third detection area for accommodating the workpiece. The third zoom lens and the fifth light source are both disposed on the fifth support frame and are both located on one side of the third detection area. The fifth light source is located between the third detection area and the third zoom lens. The sixth light source is disposed on the fourth support frame and is located on the other side of the third auxiliary component.

[0016] As a further technical solution, the axis of the first zoom lens, the axis of the first light source, and the axis of the second light source are collinear;

[0017] The axis of the second zoom lens, the axis of the third light source, and the axis of the fourth light source are collinear;

[0018] The axis of the third zoom lens, the axis of the fifth light source, and the axis of the sixth light source are collinear.

[0019] As a further technical solution, the first light source, the third light source, and the fifth light source are all configured as ring light sources, and the second light source, the fourth light source, and the sixth light source are all configured as parallel light sources.

[0020] As a further technical solution, the detection device also includes a preparation mechanism, which is disposed on the side of the side detection mechanism away from the back detection mechanism; the preparation mechanism includes a preparation support frame and a preparation component disposed on the upper surface of the preparation support frame.

[0021] As a further technical solution, the heights of the first support frame, the third support frame, the fourth support frame, and the preparatory support frame are all equal.

[0022] The beneficial effects of the above-mentioned testing equipment are as follows:

[0023] Since the front inspection mechanism, back inspection mechanism, and side inspection mechanism are arranged sequentially and at intervals along direction A, and the auxiliary gripping mechanism is located on one side of the inspection device, the auxiliary gripping mechanism can grip the workpiece and place it sequentially on the first auxiliary component, the second auxiliary component, and the third auxiliary component. When multiple surfaces of the workpiece need to be inspected for defects, the auxiliary gripping mechanism first grips the workpiece to be inspected and places it on the first auxiliary component. The first zoom lens located above the first auxiliary component captures an image of the upper surface of the workpiece for image inspection. Then, the auxiliary gripping mechanism grips the workpiece on the first auxiliary component that has completed upper surface defect inspection and places it on the second auxiliary component. The second zoom lens located below the second auxiliary component captures an image of the lower surface of the workpiece for image inspection. Then, the auxiliary gripping mechanism grips the workpiece on the second auxiliary component that has completed lower surface defect inspection and places it on the third auxiliary component. The third zoom lens located on one side of the third auxiliary component captures an image of the side of the workpiece for image inspection. Thus, the overall defect inspection process of the workpiece is completed. Throughout the entire inspection process, there is no need to flip the workpiece. Simply follow the inspection steps and use the auxiliary gripping mechanism to grip the workpiece to the corresponding auxiliary component. This not only shortens the inspection cycle and improves inspection efficiency, but also avoids the situation where one side of the workpiece is missed, thus improving the comprehensiveness of the inspection. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the testing equipment provided in the embodiments of this application;

[0026] Figure 2 This is a partial structural schematic diagram of the testing equipment provided in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram of the side detection mechanism in the detection equipment provided in the embodiments of this application.

[0028] In the picture

[0029] 100. Front detection mechanism; 111. First zoom lens; 120. First auxiliary component; 130. First support component; 131. First support frame; 132. Second support frame; 141. First light source; 142. Second light source; 150. First adjustment component; 160. First adjustment drive component;

[0030] 200. Rear detection mechanism; 211. Second zoom lens; 220. Second auxiliary component; 230. Third support frame; 241. Third light source; 242. Fourth light source; 250. Extension plate;

[0031] 300. Side detection mechanism; 311. Third zoom lens; 320. Third auxiliary component; 330. Second support component; 331. Fourth support frame; 332. Fifth support frame; 341. Fifth light source; 342. Sixth light source; 350. Second adjustment component;

[0032] 400. Preparatory mechanism; 410. Preparatory support frame; 420. Preparatory components. Detailed Implementation

[0033] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0034] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0036] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0037] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0038] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0039] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0040] Combination Figures 1 to 3 As shown, the detection equipment provided in this embodiment is used to perform multi-directional defect detection on a workpiece. This equipment can improve the comprehensiveness of the detection and shorten the detection cycle when performing defect detection on multiple surfaces of a workpiece, thereby increasing detection efficiency. Specifically, the detection equipment includes a detection device and an auxiliary gripping mechanism: the detection device includes a front detection mechanism 100, a back detection mechanism 200, and a side detection mechanism 300 arranged sequentially at intervals along direction A. The first zoom lens 111 in the front detection mechanism 100 is positioned above the first auxiliary component 120 used to support the workpiece; the second zoom lens 211 in the back detection mechanism 200 is positioned below the second auxiliary component 220 used to support the workpiece; and the third zoom lens 311 in the side detection mechanism 300 is positioned on one side of the third auxiliary component 320 used to support the workpiece. The auxiliary gripping mechanism is positioned on one side of the detection device and is used to grip the same workpiece and place it sequentially on the first auxiliary component 120, the second auxiliary component 220, and the third auxiliary component 320.

[0041] Since the front detection mechanism 100, the back detection mechanism 200 and the side detection mechanism 300 are arranged sequentially and at intervals along direction A, the auxiliary gripping mechanism is arranged on one side of the detection device, and the auxiliary gripping mechanism can grip the workpiece and place it sequentially on the first auxiliary component 120, the second auxiliary component 220 and the third auxiliary component 320. When multiple surfaces of a workpiece need to be inspected for defects, the auxiliary gripping mechanism first grips the workpiece to be inspected and places it on the first auxiliary component 120. The first zoom lens 111, located above the first auxiliary component 120, captures an image of the upper surface of the workpiece for image inspection. Then, the auxiliary gripping mechanism grips the workpiece on the first auxiliary component 120 after the upper surface defect inspection is completed and places it on the second auxiliary component 220. The second zoom lens 211, located below the second auxiliary component 220, captures an image of the lower surface of the workpiece for image inspection. After that, the auxiliary gripping mechanism grips the workpiece on the second auxiliary component 220 after the lower surface defect inspection is completed and places it on the third auxiliary component 320. The third zoom lens 311, located on one side of the third auxiliary component 320, captures an image of the side of the workpiece for image inspection of the lower side of the workpiece. Thus, the overall defect inspection process of the workpiece is completed. Throughout the entire inspection process, there is no need to flip the workpiece. Simply follow the inspection steps and use the auxiliary gripping mechanism to grip the workpiece to the corresponding auxiliary component. This not only shortens the inspection cycle and improves inspection efficiency, but also avoids the situation where one side of the workpiece is missed, thus improving the comprehensiveness of the inspection.

[0042] The auxiliary gripping mechanism is not the focus of this solution. Referring to the robotic arm setup in existing technologies, it will not be elaborated here.

[0043] Preferably, the front detection mechanism 100 further includes a first support component 130 and a first light source 141 component. The first support component 130 includes a first support frame 131 and a second support frame 132 arranged at relative intervals along the B direction. The first light source 141 component includes a first light source 141 and a second light source 142. A first auxiliary component 120 is disposed on the upper end face of the first support frame 131. The first auxiliary component 120 is provided with a first detection area for accommodating the workpiece. The first light source 141 and the first zoom lens 111 are both disposed on the second support frame 132 and are both located above the first detection area. The first light source 141 is located between the first detection area and the first zoom lens 111. The second light source 142 is disposed on the first support frame 131 and is located below the first auxiliary component 120.

[0044] Specifically, the first light source 141 is adjustablely mounted on the second support frame 132 via a first mounting bracket. The first mounting bracket has an adjustment hole extending along the height direction. The connector of the first light source 141 passes through the adjustment slot and connects to the second support frame 132. During the inspection process, according to actual inspection needs, the relative position of the adjustment slot and the connector of the first light source 141 is adjusted to achieve fine-tuning of the distance between the first light source 141 and the first zoom lens 111 or auxiliary components, thereby further ensuring measurement accuracy. The specific inspection process is as follows: First, the workpiece is placed on the auxiliary component. Then, the first light source 141 is activated. The first light source 141, in conjunction with the first zoom lens 111, captures an image of the upper surface of the workpiece for subsequent defect inspection. Then, the second light source 142 is activated while ensuring that the first light source 141 is on to enhance the light contrast of the weak boundary area of ​​the workpiece, thereby enhancing the boundary between the weak boundary area and the surrounding area, facilitating the capture of a clear image of the weak boundary area, thus facilitating subsequent defect inspection of the weak boundary area and improving the reliability of the inspection results.

[0045] Furthermore, the front detection mechanism 100 also includes a first adjustment component 150 and a first adjustment drive component 160. The first light source 141 and the first zoom lens 111 are both raised and lowered on the second support frame 132 via the first adjustment component 150. The first adjustment drive component 160 is disposed on the second support frame 132 and is connected to the first adjustment component 150 in a transmission manner.

[0046] Specifically, the first adjustment drive 160 is configured as a telescopic drive, the first adjustment assembly 150 includes a first adjustment member and a second adjustment member that slides with the first adjustment member, the first light source 141 and the first zoom lens 111 are both connected to the first adjustment member, the telescopic drive member is disposed on the second support frame 132 and is drive-connected to the first adjustment member, and the second adjustment member is fixedly connected to the second support frame 132. During the detection process, according to the actual detection requirements, the output shaft of the telescopic drive member adaptively extends and retracts according to the actual requirements, thereby changing the relative position of the first light source 141 and the first zoom lens 111 with the workpiece to meet the actual measurement requirements.

[0047] Preferably, the back-side inspection mechanism 200 further includes a third support frame 230 and a second light source 142 assembly, the second light source 142 assembly including a third light source 241 and a fourth light source 242; a second auxiliary assembly 220 is disposed on the upper end face of the third support frame 230, the second auxiliary assembly 220 is provided with a second inspection area for accommodating the workpiece, the third light source 241 and the second zoom lens 211 are both disposed on the third support frame 230 and are both located below the second inspection area, and the second zoom lens 211 is located between the second inspection area and the third light source 241, and the fourth light source 242 is disposed above the second inspection area.

[0048] When performing defect detection on the back side, i.e. the lower end face, of a workpiece, the workpiece that has already undergone front-side defect detection is first placed on the second auxiliary component 220. Then, the third light source 241 is activated. The third light source 241, in conjunction with the second zoom level, captures an image of the lower end face of the workpiece to facilitate subsequent defect detection. Afterward, the fourth light source 242 is activated while ensuring that the third light source 241 is turned on. The third light source 241 and the fourth light source 242 work together to enhance the light contrast in the weak boundary area of ​​the workpiece, thereby strengthening the boundary between the weak boundary area and the surrounding area. This facilitates capturing a clear image of the weak boundary area, which in turn facilitates subsequent defect detection in the weak boundary area and improves the reliability of the detection results.

[0049] To improve the stability of the fourth light source 242 when it is positioned above the second detection area, thereby ensuring the lighting effect on the second detection area, the back detection mechanism 200 also includes an extension plate 250. The first end of the extension plate 250 is disposed on the third support frame 230, and the second end extends away from the third support frame 230. Alternatively, the first end of the extension plate 250 is disposed on the second support frame 132, and the second end extends towards the third support frame 230. The fourth light source 242 is disposed on the second end of the extension plate 250. The arrangement of the extension plate 250 can be adapted according to actual needs. In this embodiment, the extension plate 250 is disposed on the second support frame 132.

[0050] Preferably, the side detection mechanism 300 further includes a second support component 330 and a third light source 241 component. The second support component 330 includes a fourth support frame 331 and a fifth support frame 332 arranged at relative intervals along the B direction. The third light source 241 component includes a fifth light source 341 and a sixth light source 342. A third auxiliary component 320 is disposed on the upper end face of the fourth support frame 331. The third auxiliary component 320 is provided with a third detection area for accommodating the workpiece. The third zoom lens 311 and the fifth light source 341 are both disposed on the fifth support frame 332 and are both located on one side of the third detection area. The fifth light source 341 is located between the third detection area and the third zoom lens 311. The sixth light source 342 is disposed on the fourth support frame 331 and is located on the other side of the third auxiliary component 320.

[0051] The side inspection mechanism 300 also includes a second adjustment component 350 and a second adjustment drive (not shown in the figure). The second adjustment component 350 includes a third adjustment component and a fourth adjustment component that slides with the third adjustment component. The second adjustment drive is configured as a telescopic motor. The fifth light source 341 is adjustablely mounted on the fifth support frame 332 via a second mounting bracket. The second mounting bracket is fixedly mounted on the third adjustment component. The telescopic motor is mounted on the second support frame 332 and is drivenly connected to the third adjustment component. The fourth adjustment component is fixedly connected to the fifth support frame 332. During the inspection process, the motor shaft of the telescopic motor adaptably extends and retracts according to actual inspection needs, thereby changing the relative positions of the upper third zoom lens 311 and the fifth light source 341 with the workpiece to meet actual measurement requirements.

[0052] When performing defect detection on the side of a workpiece, the workpiece that has already undergone back-side defect detection is first placed in the third detection area on the third auxiliary component 320. Then, the fifth light source 341 is activated first, and the third zoom lens 311 and the fifth light source 341 work together to capture an image of the side of the workpiece for subsequent defect detection. After that, the sixth light source 342 is activated, while ensuring that the fifth light source 341 is turned on. The fifth light source 341 and the sixth light source 342 work together to enhance the light contrast of the weak boundary area of ​​the workpiece, thereby enhancing the boundary between the weak boundary area and the surrounding area, making it easier to capture a clear image of the weak boundary area of ​​the workpiece, thus facilitating subsequent defect detection of the weak boundary area and improving the reliability of the detection results.

[0053] Preferably, the axis of the first zoom lens 111, the axis of the first light source 141, and the axis of the second light source 142 are collinear; the axis of the second zoom lens 211, the axis of the third light source 241, and the axis of the fourth light source 242 are collinear; and the axis of the third zoom lens 311, the axis of the fifth light source 341, and the axis of the sixth light source 342 are collinear.

[0054] For ease of explanation, the description will focus on the first zoom lens 111, the first light source 141, and the second light source 142. Specifically, by ensuring that the axes of the first zoom lens 111, the first light source 141, and the second light source 142 are collinear, shadows and reflections on the upper surface of the workpiece caused by differences in illumination angles can be effectively reduced. The coaxial light source allows light to be evenly distributed onto the workpiece surface, avoiding shadows on the upper surface. This enables the first zoom lens 111 to capture the contours and features of the workpiece more clearly and accurately, improving measurement accuracy. It also provides uniform illumination to the upper surface of the workpiece. Uniform and shadow-free illumination helps to fully utilize the optical performance of the first zoom lens 111, improving imaging resolution. Simultaneously, coaxial illumination helps to highlight the details and edges of the workpiece, enhancing image contrast. Furthermore, it facilitates rapid focusing and positioning of the first zoom lens 111, thereby improving detection efficiency.

[0055] To further improve detection accuracy, the first light source 141, the third light source 241, and the fifth light source 341 are all configured as ring light sources. The array of light emitters in the ring light source is conical, illuminating the workpiece surface at a certain angle. This allows for diffuse reflection, illuminating a small area and thus the edges of the workpiece. Furthermore, it ensures that weak boundary areas, which are difficult to measure, are clearly illuminated, facilitating imaging measurement by the strain gauge lens. The second light source 142, the fourth light source 242, and the sixth light source 342 are all configured as parallel light sources. These parallel light sources are telecentric coaxial, which eliminates boundary blurring caused by light source diffusion, improving the contrast of the workpiece's edge contour during detection and thus enhancing image clarity and measurement accuracy.

[0056] Preferably, the detection device further includes a preparation mechanism 400, which is disposed on the side of the side detection mechanism 300 opposite to the back detection mechanism 200. The preparation mechanism 400 includes a preparation support frame 410 and a preparation component 420 disposed on the upper surface of the preparation support frame 410. The number of preparation mechanisms 400 can be adapted to one, three, five, etc., according to actual needs. In this embodiment, one preparation mechanism 400 is used as an example for explanation.

[0057] Since this solution only performs defect detection on three sides of the workpiece, three detection mechanisms are correspondingly provided: a front detection mechanism 100, a back detection mechanism 200, and a side detection mechanism 300. To meet the needs of other embodiments where defect detection on another side of the workpiece may be required, before detection, a corresponding zoom lens and light source assembly are added to the preparatory mechanism 400. Based on the positional characteristics of the other sidewall of the workpiece, the relative positions of the zoom lens and light source assembly with the preparatory assembly 420 are adjusted to complete the defect detection on the other side of the workpiece. That is, the structure of the preparatory mechanism 400 after adding the corresponding zoom lens and light source assembly is equivalent to placing the fifth support frame 332 in the side detection mechanism 300 on the other side of the fourth support frame 331. Correspondingly, the third zoom lens 311 and the fifth light source 341 are placed on the other side of the fourth support frame 331, and the sixth light source 342 is placed on the side of the preparatory assembly 420 opposite to the fifth support frame 332.

[0058] Furthermore, the heights of the first support frame 131, the third support frame 230, the fourth support frame 331, and the reserve support frame 410 are all equal.

[0059] With this configuration, as the auxiliary gripping mechanism grips the workpiece and places it sequentially into the first auxiliary component 120, the second auxiliary component 220, the third auxiliary component 320, and the preparatory component 420, since all components have the same height, during defect detection, the auxiliary gripping mechanism only needs to transfer the workpiece in direction A according to actual needs. It does not need to adjust the height of the gripping module of the auxiliary gripping mechanism to ensure that the workpiece is placed in the corresponding component, thus further improving the gripping and placement convenience of the auxiliary gripping mechanism, thereby further shortening the workpiece transfer cycle and improving detection efficiency.

[0060] This solution does not specify the type of workpiece; defects can be detected in the contacts, printed circuit boards, chips, etc. of Bluetooth headsets according to actual needs.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A testing device for performing multi-directional defect detection on a workpiece, characterized in that, The detection equipment includes: The detection device includes a front detection mechanism (100), a back detection mechanism (200), and a side detection mechanism (300) arranged sequentially at intervals along direction A. The first zoom lens (111) in the front detection mechanism (100) is disposed above the first auxiliary component (120) for carrying the workpiece, the second zoom lens (211) in the back detection mechanism (200) is disposed below the second auxiliary component (220) for carrying the workpiece, and the third zoom lens (311) in the side detection mechanism (300) is disposed on one side of the third auxiliary component (320) for carrying the workpiece. An auxiliary gripping mechanism is disposed on one side of the detection device. The auxiliary gripping mechanism is used to grip the same workpiece and place it sequentially on the first auxiliary component (120), the second auxiliary component (220), and the third auxiliary component (320).

2. The detection device according to claim 1, characterized in that, The front detection mechanism (100) further includes a first support component (130) and a first light source component. The first support component (130) includes a first support frame (131) and a second support frame (132) arranged at relative intervals along the B direction. The first light source component includes a first light source (141) and a second light source (142). The first auxiliary component (120) is disposed on the upper surface of the first support frame (131). The first auxiliary component (120) is provided with a first detection area for accommodating the workpiece. The first light source (141) and the first zoom lens (111) are both disposed on the second support frame (132) and are both located above the first detection area. The first light source (141) is located between the first detection area and the first zoom lens (111). The second light source (142) is disposed on the first support frame (131) and is located below the first auxiliary component (120).

3. The detection device according to claim 2, characterized in that, The front detection mechanism (100) further includes a first adjustment component (150) and a first adjustment drive component (160). The first light source (141) and the first zoom lens (111) are both raised and lowered on the second support frame (132) through the first adjustment component (150). The first adjustment drive component (160) is disposed on the second support frame (132) and is connected to the first adjustment component (150) in a transmission manner.

4. The detection device according to claim 2, characterized in that, The back detection mechanism (200) further includes a third support frame (230) and a second light source assembly, the second light source assembly including a third light source (241) and a fourth light source (242); The second auxiliary component (220) is disposed on the upper surface of the third support frame (230). The second auxiliary component (220) is provided with a second detection area for accommodating the workpiece. The third light source (241) and the second zoom lens (211) are both disposed on the third support frame (230) and are both located below the second detection area. The second zoom lens (211) is located between the second detection area and the third light source (241). The fourth light source (242) is disposed above the second detection area.

5. The detection device according to claim 4, characterized in that, The back detection mechanism (200) further includes an extension plate (250), the first end of which is disposed on the third support frame (230), and the second end extends away from the third support frame (230). Alternatively, the first end of the extension plate (250) is disposed on the second support frame (132), and the second end extends toward the third support frame (230). The fourth light source (242) is disposed on the second end of the extension plate (250).

6. The detection device according to claim 4, characterized in that, The side detection mechanism (300) further includes a second support component (330) and a third light source component. The second support component (330) includes a fourth support frame (331) and a fifth support frame (332) arranged at relative intervals along the B direction. The third light source component includes a fifth light source (341) and a sixth light source (342). The third auxiliary component (320) is disposed on the upper end face of the fourth support frame (331). The third auxiliary component (320) is provided with a third detection area for accommodating the workpiece. The third zoom lens (311) and the fifth light source (341) are both disposed on the fifth support frame (332) and are both located on one side of the third detection area. The fifth light source (341) is located between the third detection area and the third zoom lens (311). The sixth light source (342) is disposed on the fourth support frame (331) and is located on the other side of the third auxiliary component (320).

7. The detection device according to claim 6, characterized in that, The axis of the first zoom lens (111), the axis of the first light source (141), and the axis of the second light source (142) are collinear; The axis of the second zoom lens (211), the axis of the third light source (241), and the axis of the fourth light source (242) are collinear; The axes of the third zoom lens (311), the fifth light source (341), and the sixth light source (342) are collinear.

8. The detection device according to claim 6, characterized in that, The first light source (141), the third light source (241) and the fifth light source (341) are all set as ring light sources, and the second light source (142), the fourth light source (242) and the sixth light source (342) are all set as parallel light sources.

9. The detection device according to claim 6, characterized in that, The detection device further includes a preparation mechanism (400), which is disposed on the side of the side detection mechanism (300) away from the back detection mechanism (200); the preparation mechanism (400) includes a preparation support frame (410) and a preparation component (420) disposed on the upper surface of the preparation support frame (410).

10. The detection device according to claim 9, characterized in that, The heights of the first support frame (131), the third support frame (230), the fourth support frame (331), and the preparatory support frame (410) are all equal.

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