A detection mechanism and detection device

Abstract

The application relates to a detection mechanism and a detection device. The detection mechanism comprises a mounting frame, a camera and a mirror group. The mounting frame has a first detection port facing a first detection area and a second detection port facing a second detection area. The camera is installed on the mounting frame, and the lens of the camera comprises a first shooting area and a second shooting area. The first shooting area can receive light rays emitted by the first detection area through the first detection port. The mirror group is installed on the mounting frame and forms a light ray channel between the second detection port and the second shooting area, so that the second shooting area can receive light rays emitted by the second detection area through the second detection port and the light ray channel. The detection mechanism in the application can simultaneously image the first detection area and the second detection area through one camera, avoids the need to arrange two cameras in one detection area, reduces the device cost, simplifies the adjustment process before detection, and saves the adjustment time before detection.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a testing mechanism and testing device. Background Technology

[0002] In the battery production process, it is often necessary to acquire images of two areas of the object to be tested, and then process the acquired images to obtain the test results.

[0003] For example, in the process of winding a battery cell, the four layers of material strip are stacked in the order of anode, separator, cathode, and separator, and then fed into a winding needle mechanism for winding to form the battery cell. In this winding process, the alignment of the anode and cathode is a crucial indicator of battery cell quality. For one end of the battery cell: when checking the alignment of the anode and cathode, an image needs to be captured at the end of the battery cell to obtain the relative positions of the anode and separator. Since the cathode is wrapped inside, its relative position cannot be obtained from the image of the battery cell; therefore, an image needs to be captured from the feed side above the battery cell to obtain the relative positions of the cathode and separator. The alignment of the anode and cathode is then indirectly obtained through the relative positions of the anode and separator, and the relative positions of the cathode and separator. The alignment of the anode and cathode at the other end of the battery cell is obtained in the same way, and will not be elaborated upon here.

[0004] However, in existing technologies, to obtain images of the end of the battery cell and the feed side above the cell, two cameras are needed to capture images of these two locations separately. If the alignment of the anode and cathode at both ends of the battery cell needs to be detected, four cameras are required. Since two cameras are needed to detect each end of the battery cell, the equipment cost is high, and the relative positions of the two cameras need to be manually adjusted before detection, which is a complex and time-consuming process. Summary of the Invention

[0005] Therefore, it is necessary to provide a detection mechanism and device that improves upon the above-mentioned defects, which is that the existing technology requires a camera to be set up for each area to be detected, resulting in a large number of cameras, high detection costs, and a complicated and time-consuming debugging process for the position of each camera.

[0006] A detection mechanism is used to image a first region to be detected and a second region to be detected, the detection mechanism comprising:

[0007] The mounting bracket has a first detection port facing the first area to be detected and a second detection port facing the second area to be detected;

[0008] A camera, mounted on the mounting bracket, has a lens comprising a first imaging area and a second imaging area; the first imaging area is capable of receiving light incident from the first area to be detected through the first detection port; and

[0009] A reflector assembly is mounted on the mounting frame and forms a light channel between the second detection port and the second imaging area, so that the second imaging area can receive light incident from the second area to be detected through the second detection port and the light channel.

[0010] In one embodiment, the mirror assembly includes a first mirror and a second mirror, both mounted on the mounting bracket;

[0011] The first reflector is installed on the side of the second detection port facing the camera, and the second reflector is disposed between the first detection port and the second detection port;

[0012] The first reflector is used to reflect light entering from the second detection area through the second detection port to the second reflector, and the second reflector is used to reflect the light reflected by the first reflector to the second shooting area.

[0013] In one embodiment, the orthographic projection of the boundary line between the second reflector and the first detection port onto the lens of the camera is the boundary line between the first shooting area and the second shooting area.

[0014] In one embodiment, the journey of light from the first area to be detected through the first detection port to the first shooting area is the first journey; the journey of light from the second area to be detected through the second detection port and the light channel to the second shooting area is the second journey.

[0015] The first journey is equal to the second journey.

[0016] In one embodiment, the detection mechanism further includes a first adjustment component, through which the first reflector is mounted on the mounting bracket;

[0017] The first adjustment component is configured to operably rotate the first reflector relative to the mounting bracket to adjust the angle between the first reflector and the second reflector; and / or, the first adjustment component is configured to operably move the first reflector relative to the mounting bracket to adjust the distance between the first reflector and the second reflector.

[0018] In one embodiment, the first adjusting component includes a sliding seat, a first locking member, and a second locking member;

[0019] The sliding seat is movably connected to the mounting bracket, and the first locking member is used to lock or release the sliding seat and the mounting bracket; the first reflector is rotatably connected to the sliding seat, and the second locking member is used to lock or release the first reflector and the sliding seat.

[0020] In one embodiment, the mounting bracket has a first strip-shaped hole through which the first locking member passes. One end of the first locking member is threadedly connected to the sliding seat, and the other end of the first locking member has a first head for abutting against the side of the mounting bracket opposite to the sliding seat.

[0021] In one embodiment, the sliding seat has a second slotted hole through which the second locking member passes. One end of the second locking member is threadedly connected to the first reflector, and the other end of the second locking member has a second head for abutting against the side of the sliding seat opposite to the first reflector.

[0022] In one embodiment, the detection mechanism further includes a second adjustment component and a mounting base, wherein the mounting bracket is connected to the mounting base via the second adjustment component;

[0023] The second adjustment component is configured to operably drive the mounting bracket to move and / or rotate relative to the mounting base.

[0024] In one embodiment, the detection mechanism further includes a light source assembly disposed on the second adjustment component or the mounting base, the light source assembly including a light source with adjustable spatial angle.

[0025] A detection device includes two detection mechanisms as described in any of the above embodiments;

[0026] The two detection mechanisms are respectively arranged at both ends of the object to be detected, and both ends of the object to be detected have the first detection area and the second detection area;

[0027] The camera of one of the detection mechanisms is used to image the first detection area and the second detection area at one end of the object to be detected; the camera of the other detection mechanism is used to image the first detection area and the second detection area at the other end of the object to be detected.

[0028] In the aforementioned detection mechanism and device, light from the first detection area can enter the first shooting area of ​​the camera through the first detection port, and light from the second detection area can enter the second detection port, and then reach the second shooting area of ​​the camera through reflection by the mirror group (i.e., through the light channel). Since the first and second shooting areas of the camera receive light from the first and second detection areas respectively, the first and second detection areas can be imaged simultaneously.

[0029] Compared with the existing technology that requires setting up separate cameras for each area to be detected to acquire images, the detection mechanism in this application uses one camera to simultaneously image the first and second areas to be detected, avoiding the need to set up two cameras in one area to be detected, thereby reducing device costs, simplifying the pre-detection adjustment process, and saving pre-detection adjustment time. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating how a testing agency tests battery cells in the existing technology.

[0031] Figure 2 This is a front view of the detection mechanism in one embodiment of the present invention;

[0032] Figure 3 for Figure 2 A cross-sectional view of the testing facility shown;

[0033] Figure 4 This is a front view of the detection mechanism in another embodiment of the present invention;

[0034] Figure 5 This is a top view of the detection device in one embodiment of the present invention. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Please see Figure 1 In the existing technology, during the process of stacking four layers of material strips (anode, diaphragm, cathode, and membrane) and winding them onto a winding needle to form a battery cell 3, a first camera 1 needs to be set at the end of the battery cell 3 to image the end of the battery cell 3 (i.e., the second detection area a2) and thus obtain the relative position of the anode and the membrane. Simultaneously, a second camera 2 needs to be set at the feed side above the end of the battery cell 3 (i.e., the first detection area a1) to image the material strip on the feed side above the end of the battery cell 3 and thus obtain the relative position of the cathode and the membrane. Finally, the relative position of the anode and the cathode (i.e., the alignment of the anode and the cathode) is indirectly obtained through the relative positions of the anode and the membrane and the cathode and the membrane. Furthermore, in actual production, the alignment of the anode and the cathode at both ends of the battery cell 3 needs to be detected; therefore, two cameras need to be set at both ends of the battery cell 3. Figure 1 Only the first camera 1 and the second camera 2, which detect one end of the battery cell 3, are shown in the image; the two cameras that detect the other end of the battery cell 3 are not shown.

[0042] Therefore, when detecting the alignment of the cathode and anode, a camera needs to be set up for each area to be detected, resulting in a large number of cameras, high detection costs, and a complex and time-consuming debugging process for the position of each camera.

[0043] Based on this, one embodiment of the present invention provides a detection mechanism 100 for imaging (i.e., image acquisition) a first detection area a1 and a second detection area a2. Please refer to... Figure 2 and Figure 3 As shown, the testing mechanism 100 includes a mounting bracket 10, a camera 20, and a reflector assembly (not shown in the figure).

[0044] The mounting bracket 10 has a first detection port 11 facing a first detection area a1 and a second detection port 12 facing a second detection area a2. A camera 20 is mounted on the mounting bracket 10, and the lens of the camera 20 includes a first imaging area b1 and a second imaging area b2. The first imaging area b1 is capable of receiving light incident from the first detection area a1 through the first detection port 11. A reflector assembly is mounted on the mounting bracket 10, forming a light channel 33 between the second detection port 12 and the second imaging area b2, so that the second imaging area b2 can receive light incident from the second detection area a2 through the second detection port 12 and the light channel 33.

[0045] In the aforementioned detection mechanism 100, light from the first detection area a1 can enter the first shooting area b1 of the camera 20 through the first detection port 11, and light from the second detection area a2 can enter the second detection port 12, and then reach the second shooting area b2 of the camera 20 by reflection from the mirror group (i.e., through the light channel 33). Since the first shooting area b1 and the second shooting area b2 of the camera 20 respectively receive the light from the first detection area a1 and the second detection area a2, they can simultaneously image the first detection area a1 and the second detection area a2.

[0046] Compared with the existing technology that requires setting up separate cameras for each area to be detected to acquire images, the detection mechanism 100 in this application uses one camera 20 to simultaneously image the first area to be detected a1 and the second area to be detected a2, which avoids the need to set up two cameras 20 in one area to be detected, thereby reducing the cost of the device, simplifying the adjustment process before detection, and saving the adjustment time before detection.

[0047] In an embodiment of the present invention, the reflector assembly includes a first reflector 31 and a second reflector 32, both mounted on the mounting bracket 10. The first reflector 31 is mounted on the side of the second detection port 12 facing the camera 20, and the second reflector 32 is disposed between the first detection port 11 and the second detection port 12. The first reflector 31 reflects light entering from the second detection area a2 through the second detection port 12 to the second reflector 32. The second reflector 32 reflects the light reflected by the first reflector 31 to the second imaging area b2 of the camera 20. Thus, light from the second detection area a2 enters from the second detection port 12 to the first reflector 31, is reflected by the first reflector 31 to the second reflector 32, and is then reflected by the second reflector 32 to the second imaging area b2 of the camera 20, enabling the camera 20 to image the second imaging area b2.

[0048] Specifically, in this embodiment, the orthographic projection of the boundary line between the second reflector 32 and the first detection port 11 onto the lens of the camera 20 is a projection line. This projection line is the boundary line between the first imaging area b1 and the second imaging area b2. Thus, light rays incident through the first detection port 11 can directly reach the first imaging area b1 of the camera 20, and light rays reflected by the second reflector 32 can also directly reach the second imaging area b2 of the camera 20. Therefore, the camera 20 simultaneously images the first imaging area b1 and the second imaging area b2, obtaining images of the first detection area a1 and the second detection area a2.

[0049] To enable the camera 20 to better present the images of the first detection area a1 and the second detection area a2 in the same image, in one embodiment, the journey of light from the first detection area a1 through the first detection port 11 to the first shooting area b1 is called the first journey. The journey of light from the second detection area a2 through the second detection port 12 and the light channel 33 to the second shooting area b2 is called the second journey. The first journey and the second journey are equal, ensuring that the first detection area a1 and the second detection area a2 simultaneously meet the shooting distance of the camera 20. This results in the image formed by the camera 20 simultaneously imaging the first detection area a1 and the second detection area a2 (i.e., simultaneously presenting the images of the first detection area a1 and the second detection area a2 in the same image) having consistent clarity and meeting the detection requirements.

[0050] It should be noted that since the light from the second detection area a2 is reflected by the mirror assembly before reaching the camera 20, the mirror assembly increases the travel distance of the light entering from the second detection area a2. In order to make the first travel distance and the second travel distance equal, the distance from the second detection area a2 to the second detection port 12 needs to be less than the distance from the first detection area a1 to the first detection port 11.

[0051] It is understandable that the equality of the first and second strokes mentioned above should not be interpreted as a numerical equality, but rather as allowing for a certain range of error. Furthermore, this range of error can be determined based on specific testing requirements and is not limited here.

[0052] In some embodiments, the detection mechanism 100 further includes a first adjustment component (not shown), through which the first reflector 31 is mounted on the mounting frame 10. The first adjustment component is configured to operably rotate the first reflector 31 relative to the mounting frame 10 to adjust the angle between the first reflector 31 and the second reflector 32, thereby adjusting the angle at which light from the second detection area a2 enters the first reflector 31. This ensures that the light from the second detection area a2 enters the first reflector 31 at a suitable angle from the second detection port 12, guaranteeing that the light from the second detection area a2, after being reflected by the first reflector 31 and the second reflector 32, accurately enters the second imaging area b2 of the camera 20, thus improving image quality.

[0053] The first adjustment component is also configured to operably move the first reflector 31 relative to the mounting bracket 10 to adjust the distance between the first reflector 31 and the second reflector 32, thereby adjusting the position of the light reflected by the first reflector 31 entering the second reflector 32, and further adjusting the position of the light reflected by the second reflector 32 entering the camera 20, thereby ensuring that it can accurately enter the second shooting area b2 of the camera 20, which is beneficial to ensuring image quality.

[0054] It is understood that, in one embodiment, the first adjustment component may simply be configured to operably drive the first reflector 31 to rotate or move relative to the mounting bracket 10. Of course, in order to improve the flexibility of adjustment and reduce the difficulty of adjustment, in other embodiments, the first adjustment component may also be configured to operably drive the first reflector 31 to rotate and move relative to the mounting bracket 10.

[0055] Specifically, in this embodiment, the first adjustment component includes a sliding seat 41, a first locking member 43, and a second locking member 42. The sliding seat 41 is movably connected to the mounting bracket 10. The first locking member 43 is used to lock or release the sliding seat 41 and the mounting bracket 10. When the first locking member 43 locks the sliding seat 41 and the mounting bracket 10, the sliding seat 41 cannot move relative to the mounting bracket 10; when the first locking member 43 releases the sliding seat 41 and the mounting bracket 10, the sliding seat 41 can move relative to the mounting bracket 10. A first reflector 31 is rotatably connected to the sliding seat 41. The second locking member 42 is used to lock or release the first reflector 31 and the sliding seat 41. When the second locking member 42 locks the first reflector 31 and the sliding seat 41, the first reflector 31 cannot rotate relative to the sliding seat 41; when the second locking member 42 releases the first reflector 31 and the sliding seat 41, the first reflector 31 can rotate relative to the sliding seat 41.

[0056] Thus, when it is necessary to adjust the distance between the first reflector 31 and the second reflector 32, the first locking member 43 is operated to release the sliding seat 41 from the mounting bracket 10. At this time, the sliding seat 41 can be moved, thereby moving the first reflector 31 away from or closer to the second reflector 32. After the first reflector 31 is moved into position, the first locking member 43 is operated to lock the sliding seat 41 and the mounting bracket 10, at which point the sliding seat 41 and the mounting bracket 10 are fixed.

[0057] When it is necessary to adjust the rotation of the first reflector 31 relative to the second reflector 32, operate the second locking member 42 to release the first reflector 31 from the sliding seat 41, at which point the first reflector 31 can be rotated for adjustment. After the first reflector 31 has rotated to the correct position, operate the second locking member 42 to lock the first reflector 31 from the sliding seat 41, at which point the first reflector 31 cannot rotate relative to the sliding seat 41.

[0058] In a specific embodiment, the mounting bracket 10 has a first slotted hole 12 through which the first locking member 43 passes. One end of the first locking member 43 is threadedly connected to the sliding seat 41, and the other end of the first locking member 43 has a first head, which is used to abut against the side of the mounting bracket 10 away from the sliding seat 41. Thus, when it is necessary to adjust the distance between the first reflector 31 and the second reflector 32, the first locking member 43 is loosened, causing the first head of the first locking member 43 to separate from the mounting bracket 10, that is, the sliding seat 41 is released from the mounting bracket 10, allowing the sliding seat 41 to move relative to the mounting bracket 10, thereby moving the first reflector 31 closer to or away from the second reflector 32. After the first reflector 31 is moved into place, the first locking member 43 is tightened, causing the first head of the first locking member 43 to abut against the mounting bracket 10, thereby preventing the sliding seat 41 from moving relative to the mounting bracket 10, that is, at this time the first reflector 31 cannot move relative to the second reflector 32. Optionally, the first locking member 43 can be a fastening screw.

[0059] Optionally, the mounting bracket 10 is provided with a sliding groove 13, and the sliding seat 41 is provided with a sliding protrusion. The sliding protrusion slides within the sliding groove 13, thereby guiding the movement of the sliding seat 41 relative to the mounting bracket 10 by moving the sliding protrusion along the sliding groove 13. It is understood that the longitudinal extension direction of the first strip hole 12 is parallel to the longitudinal extension direction of the sliding groove 13. In actual operation, the operator can loosen the first locking member 43 and then push the first locking member 43 along the first strip hole 12, thereby moving the sliding seat 41 and the first reflector 31 on the sliding seat 41 along the sliding groove 13 to achieve adjustment. After adjustment, the operator then tightens the first locking member 43.

[0060] In a specific embodiment, the sliding seat 41 has a second slotted hole 410 through which the second locking member 42 passes. One end of the second locking member 42 is threadedly connected to the first reflector 31, and the other end of the second locking member 42 has a second head, which is used to abut against the side of the sliding seat 41 opposite to the first reflector 31. Thus, when it is necessary to adjust the angle between the first reflector 31 and the second reflector 32, the second locking member 42 is loosened, causing the second head of the second locking member 42 to separate from the sliding seat 41, that is, the first reflector 31 and the sliding seat 41 are loosened, allowing the first reflector 31 to rotate relative to the sliding seat 41. After the first reflector 31 has rotated to its position, the second locking member 42 is tightened, causing the second head of the second locking member 42 to abut against the sliding seat 41, thereby preventing the first reflector 31 from rotating relative to the sliding seat 41, that is, at this time the first reflector 31 cannot rotate relative to the second reflector 32. Optionally, the second locking member 42 can be a fastening screw.

[0061] It should be noted that the second strip-shaped hole 410 extends longitudinally along an arc, and the center of this arc is located on the rotation axis of the first reflecting mirror 31. Thus, when the first reflecting mirror 31 rotates after the second locking member 42 is loosened, the second locking member 42 can move along the second strip-shaped hole 410 following the first reflecting mirror 31. Of course, after the operator loosens the second locking member 42, they can push it along the second strip-shaped hole 410, thereby causing the first reflecting mirror 31 to rotate for adjustment. After adjustment, the operator can then tighten the first locking member 43.

[0062] Optionally, the first reflector 31 can be mounted on the sliding seat 41 via a pivot shaft 411, so that when the first locking member 43 releases the first reflector 31 and the sliding seat 41, the first reflector 31 can rotate relative to the sliding seat 41 about the pivot shaft 411.

[0063] Please see Figure 4 and Figure 5 As shown, in an embodiment of the present invention, the detection mechanism 100 further includes a second adjustment component 50 and a mounting base 70. The mounting frame 10 is connected to the mounting base 70 via the second adjustment component 50. The second adjustment component 50 is configured to operably drive the mounting frame 10 to move and / or rotate relative to the mounting base 70, thereby adjusting the position of the mounting frame 10 so that the first detection port 11 and the second detection port 12 on the mounting frame 10 are respectively aligned with the first detection area a1 and the second detection area a2, so that the camera 20 can simultaneously image the first detection area a1 and the second detection area a2.

[0064] Specifically, in this embodiment, the second adjustment component 50 includes an adjustment seat 52 and a connecting seat 51. The adjustment seat 52 is disposed on the mounting base 70 and configured to be operably movable relative to the mounting base 70 along a first direction. The connecting seat 51 is disposed on the adjustment seat 52 and configured to be operably rotated relative to the adjustment seat 52 about a first rotation axis. The mounting bracket 10 is mounted on the connecting seat 51 to move together with the connecting seat 51. The first rotation axis is parallel to the first direction. Thus, by moving the adjustment seat 52 relative to the mounting base 70 along the first direction and rotating the connecting seat 51 relative to the adjustment seat 52 about the first rotation axis, the mounting bracket 10 can be adjusted, so that the first detection port 11 and the second detection port 12 of the mounting bracket 10 are respectively aligned with the first detection area a1 and the second detection area a2. Figure 4 In the embodiment shown, the first direction is the up-down direction, and the first rotation axis is parallel to the up-down direction.

[0065] In a specific embodiment, the second adjustment assembly 50 further includes a third locking member. The adjustment seat 52 has a third slotted hole 521 through which the third locking member passes. The connecting seat 51 is rotatably connected to the adjustment seat 52 about a first rotation axis. One end of the third locking member is threadedly connected to the connecting seat 51, and the other end of the third locking member has a third head, which is used to abut against the side of the adjustment seat 52 opposite to the connecting seat 51. Thus, when it is necessary to adjust the rotation of the mounting bracket 10, the third locking member is loosened, causing the third head to separate from the adjustment seat 52. Then, the connecting seat 51 and the mounting bracket 10 on the connecting seat 51 are pushed to rotate relative to the adjustment seat 52. After the position of the mounting bracket 10 is adjusted to the correct position, the third locking member is tightened, causing the third head to abut against the adjustment seat 52, preventing the connecting seat 51 from continuing to rotate relative to the adjustment seat 52. Optionally, the third locking member can be a fastening screw.

[0066] Furthermore, the third strip-shaped hole 521 extends longitudinally along an arc, and the center of the arc is located on the first rotation axis. Thus, when the connecting seat 51 rotates after the third locking member is loosened, the third locking member can follow the connecting seat 51 along the third strip-shaped hole 521, thereby avoiding interference of the third locking member with the rotation of the connecting seat 51.

[0067] Specifically, in this embodiment, the second adjusting assembly 50 further includes a fourth locking member. The adjusting seat 52 has a fourth slot 522 through which the fourth locking member passes. It is understood that the fourth slot 522 extends longitudinally along a first direction. One end of the fourth locking member is threadedly connected to the mounting base 70, and the other end has a fourth head, which abuts against the side of the adjusting seat 52 opposite to the mounting base 70. Thus, when it is necessary to adjust the movement of the mounting bracket 10, the fourth locking member is loosened, causing the fourth head to separate from the adjusting seat 52. Then, the adjusting seat 52 is pushed to move along the first direction, causing the connecting seat 51 and the mounting bracket 10 on the connecting seat 51 to move relative to the mounting base 70 along the first direction. After the mounting bracket 10 is in position, the fourth locking member is tightened, causing the fourth head to abut against the adjusting seat 52, preventing the adjusting seat 52 from continuing to move relative to the mounting base 70 along the first direction. Optionally, the fourth locking member can be a fastening screw.

[0068] In some embodiments, the detection mechanism 100 further includes a light source assembly 60 disposed on the second adjustment component 50 or the mounting base 70, the light source assembly 60 including an angle-adjustable light source 64. The light source 64 is used to illuminate the first detection area a1 and / or the second detection area a2, so that the camera 20 can better image the first detection area a1 and / or the second detection area a2. Thus, before use, the spatial angle of the light source 64 can be controlled to adjust its illumination position, so that the light source 64 can illuminate the first detection area a1 and / or the second detection area a2.

[0069] In a specific embodiment, the light source assembly 60 further includes a connecting rod 61, an adjusting block 62, and a light source base 63. One end of the connecting rod 61 is fixedly connected to the mounting base 70 or the adjusting seat 52 of the second adjusting assembly 50, and the adjusting block 62 is rotatably connected to the connecting rod 61 about a second rotation axis. The light source base 63 is rotatably connected to the adjusting block 62 about a third rotation axis perpendicular to the second rotation axis, and the light source is mounted on the light source base 63. Thus, the spatial angle of the light source is adjusted by rotating the adjusting block 62 about the second rotation axis and rotating the light source base 63 about the third rotation axis, so that the light source 64 can accurately illuminate the first detection area a1 and / or the second detection area a2. Optionally, the second rotation axis is perpendicular to the first rotation axis, and the third rotation axis is perpendicular to the second rotation axis.

[0070] Optionally, the adjusting block 62 is connected to the connecting rod 61 by a clamping method, so that the adjusting block 62 can rotate around the connecting rod 61 under the action of external force, that is, the adjusting block 62 rotates around the second rotation axis. When the external force disappears, the adjusting block 62 stops rotating around the connecting rod 61. Of course, when it is not necessary to rotate the adjusting block 62, the adjusting block 62 can also be locked and fixed to the connecting rod 61 by fasteners such as fastening screws. When it is necessary to rotate the adjusting block 62, the fastener can be loosened.

[0071] Optionally, the light source assembly 60 further includes a fifth locking member. The light source base 63 is rotatably connected to the adjusting block 62 via a hinge shaft 621, the axis of which is the aforementioned third rotation axis. The adjusting block 62 has a fifth slotted hole 631 through which the fifth locking member passes. One end of the fifth locking member is threaded to the light source base 63, and the other end has a fifth head, which abuts against the side of the adjusting block 62 opposite to the light source base 63. Thus, when it is necessary to rotate the light source base 63, the fifth locking member is loosened, causing the fifth head on the fifth locking member to separate from the adjusting block 62, at which point the light source base 63 can be controlled to rotate around the hinge shaft 621. After the light source base 63 has rotated to its final position, the fifth locking member is tightened, causing the fifth head on the fifth locking member to abut against the adjusting block 62, thereby preventing the light source base 63 from continuing to rotate relative to the adjusting block 62. Optionally, the fifth locking member can be a fastening screw.

[0072] It should be noted that the fifth strip-shaped hole 631 extends longitudinally along an arc, the center of which lies on the axis of the hinge shaft 621 (i.e., the third rotation axis). Thus, when the light source base 63 rotates after the fifth locking member is loosened, the fifth locking member can move along the fifth strip-shaped hole 631 along with the light source base 63, thereby avoiding interference with the rotation of the light source base 63 caused by the fifth locking member.

[0073] In one embodiment, there are two light source assemblies 60. One light source assembly 60 is mounted on the adjustment base 52, and its light source 64 is used to illuminate the first area to be detected a1. The other light source assembly 60 is mounted on the mounting base 70, and its light source 64 is used to illuminate the second area to be detected a2. Optionally, both light source 64s of the two light source assemblies 60 can be point light sources.

[0074] In another embodiment, the number of light source components 60 is one, and the light source 64 of the one light source component 60 is used to simultaneously illuminate the first detection area a1 and the second detection area a2. The light source 64 of the light source component 60 is a strip light source.

[0075] Based on the aforementioned detection mechanism 100, the present invention also provides a detection device comprising two detection mechanisms 100. Specifically, both ends of the object to be tested have a first detection area a1 and a second detection area a2. The two detection mechanisms 100 are respectively arranged at both ends of the object to be tested. That is, one detection mechanism 100 images the first detection area a1 and the second detection area a2 at one end of the object to be tested; and the other detection mechanism 100 images the first detection area a1 and the second detection area a2 at the other end of the object to be tested.

[0076] It should be noted that when the length of the object to be inspected is small, the imaging range of the first imaging area b1 of the camera 20 can cover the first detection areas a1 at both ends of the object, and the imaging range of the second imaging area b2 of the camera 20 can cover the second detection areas a2 at both ends of the object. In this case, only one detection mechanism 100 can be configured to detect both ends of the object.

[0077] It is understood that the substance to be tested in this application can be as follows: Figure 1 The image shows a battery cell 3 being wound into shape on a winding needle. Of course, the object to be tested can also be other types of items, which are not limited here.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A detection mechanism for imaging a first area to be detected and a second area to be detected, characterized in that The detection mechanism comprises: a mounting frame having a first detection opening facing the first area to be detected and a second detection opening facing the second area to be detected; a camera mounted on the mounting frame, a lens of the camera comprising a first shooting area and a second shooting area, the first shooting area being capable of receiving light rays emitted by the first area to be detected through the first detection opening; and a mirror set mounted on the mounting frame and forming a light ray channel between the second detection opening and the second shooting area, so that the second shooting area is capable of receiving light rays emitted by the second area to be detected through the second detection opening and the light ray channel; the mirror set comprising a first mirror and a second mirror, both mounted on the mounting frame, the first mirror being mounted on a side of the second detection opening facing the camera, and the second mirror being arranged between the first detection opening and the second detection opening; the first mirror being configured to reflect light rays emitted by the second area to be detected through the second detection opening to the second mirror, and the second mirror being configured to reflect light rays reflected by the first mirror to the second shooting area, a normal projection of a boundary line between the second mirror and the first detection opening on the lens of the camera being a boundary line between the first shooting area and the second shooting area, and the detection mechanism further comprising a first adjusting assembly, the first mirror being mounted on the mounting frame by the first adjusting assembly.

2. The detection mechanism of claim 1, wherein, a first path of light rays from the first area to be detected to the first shooting area through the first detection opening being a first path, and a second path of light rays from the second area to be detected to the second shooting area through the second detection opening and the light ray channel being a second path; wherein the first path is equal to the second path.

3. The detection mechanism of claim 1, wherein, the first adjusting assembly being configured to operatively drive the first mirror to rotate relative to the mounting frame to adjust an angle between the first mirror and the second mirror, and / or the first adjusting assembly being configured to operatively drive the first mirror to move relative to the mounting frame to adjust a distance between the first mirror and the second mirror.

4. The detection mechanism of claim 3, wherein, the first adjusting assembly comprising a sliding seat, a first locking member and a second locking member; the sliding seat being movably connected to the mounting frame, the first locking member being configured to lock or release the sliding seat and the mounting frame, and the first mirror being rotatably connected to the sliding seat, the second locking member being configured to lock or release the first mirror and the sliding seat.

5. The detection mechanism of claim 4, wherein, the mounting frame being provided with a first strip-shaped hole for the first locking member to pass through, one end of the first locking member being threadedly connected to the sliding seat, and the other end of the first locking member having a first head configured to abut against a side of the mounting frame away from the sliding seat.

6. The detection mechanism of claim 4, wherein, the sliding seat being provided with a second strip-shaped hole for the second locking member to pass through, one end of the second locking member being threadedly connected to the first mirror, and the other end of the second locking member having a second head configured to abut against a side of the sliding seat away from the first mirror.

7. The detection mechanism according to any one of claims 1 to 6, characterized in that, The detection mechanism further comprises a second adjusting assembly and a mounting base, the mounting frame is connected to the mounting base through the second adjusting assembly; The second adjusting assembly is configured to operatively drive the mounting frame to move and / or rotate relative to the mounting base.

8. The detection mechanism of claim 7, wherein, The detection mechanism further comprises a light source assembly arranged on the second adjusting assembly or the mounting base, the light source assembly comprises a spatial angle adjustable light source.

9. A detection device, characterized in that Two detection mechanisms as claimed in any one of claims 1 to 8; The two detection mechanisms are respectively arranged at two ends of a to-be-detected object, and each end of the to-be-detected object has the first to-be-detected area and the second to-be-detected area; The camera of one of the detection mechanisms is used for imaging the first to-be-detected area and the second to-be-detected area of one end of the to-be-detected object; The camera of the other detection mechanism is used for imaging the first to-be-detected area and the second to-be-detected area of the other end of the to-be-detected object.

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