CN217424277U

CN217424277U - Detection mechanism and detection device

Info

Publication number: CN217424277U
Application number: CN202220649798.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-09-13
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to a detection mechanism and detection device. This detection mechanism includes: the mounting frame is provided with a first detection port facing the first region to be detected and a second detection port facing the second region to be detected; the camera is arranged on the mounting frame, and a lens of the camera comprises a first shooting area and a second shooting area; the first shooting area can receive light rays emitted from the first area to be detected through the first detection port; and the reflector group is arranged on the mounting frame, and a light channel is formed between the second detection port and the second shooting area, so that the second shooting area can receive light rays emitted from the second detection area through the second detection port and the light channel. The detection mechanism in this application is waited the region to wait for first and is waited the region simultaneous imaging to the second through a camera, has avoided waiting to detect the region and has set up two cameras at one to reduce the device cost, simplified the accommodation process before detecting, saved the adjustment time before detecting.

Description

Detection mechanism and detection device

Technical Field

The utility model relates to a battery manufacturing technology field especially relates to a detection mechanism and detection device.

Background

In the production process of the battery, two areas of an object to be detected are required to be subjected to image acquisition frequently, and the acquired images are processed to obtain a detection result.

For example, in a process of winding a battery cell, four layers of tapes are stacked in the order of an anode, a separator, a cathode, and a separator, and then fed to a winding needle mechanism to be wound to form a battery cell. In the winding process, the alignment of the anode and the cathode is an important index for measuring the quality of the cell. For one end of the cell: when the alignment degree of the anode and the cathode is detected, image acquisition needs to be carried out on the end part of the battery cell, so that the relative position of the anode and the diaphragm is obtained; since the cathode is wrapped at the innermost side, the relative position of the cathode cannot be obtained through the image of the battery cell, and therefore, the image of the feeding side above the battery cell needs to be acquired, so as to obtain the relative position of the cathode and the diaphragm. And then the relative position of the anode and the diaphragm and the relative position of the cathode and the diaphragm are indirectly used for obtaining the alignment degree of the anode and the cathode. The alignment degree of the anode and the cathode at the other end of the battery cell is obtained by adopting the above method, and is not described herein again.

However, in the prior art, in order to obtain images of the end portion of the battery cell and the feeding side above the battery cell, two cameras are required to respectively acquire images of the two positions. If the alignment degree of the anode and the cathode at the two ends of the battery cell needs to be detected, four cameras need to be arranged. Because every one end of electric core all needs to adopt two camera cooperations to detect, device cost is higher, and needs the relative position of two cameras of manual regulation before detecting, and accommodation process is complicated, adjustment time is long.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a detection mechanism and a detection device for overcoming the above-mentioned defects, in order to solve the problems that in the prior art, when detection is performed, one camera needs to be arranged for each region to be detected, which results in a large number of cameras, high detection cost, complicated debugging process of the positions of the cameras, and long debugging time.

A detection mechanism for imaging a first region to be detected and a second region to be detected, the detection mechanism comprising:

the mounting frame is provided with a first detection port facing the first region to be detected and a second detection port facing the second region to be detected;

the camera is arranged on the mounting frame, and a lens of the camera comprises a first shooting area and a second shooting area; the first shooting area can receive light rays emitted from the first area to be detected through the first detection port; and

and the reflector group is arranged on the mounting frame, and a light channel is formed between the second detection port and the second shooting area, so that the second shooting area can receive light emitted from the second to-be-detected area through the second detection port and the light channel.

In one embodiment, the mirror group comprises a first mirror and a second mirror both mounted on the mounting frame;

the first reflector is arranged on one side, facing the camera, of the second detection port, and the second reflector is arranged between the first detection port and the second detection port;

the first reflector is used for reflecting light rays entering from the second area to be detected through the second detection port to the second reflector, and the second reflector is used for reflecting the light rays reflected by the first reflector to the second shooting area.

In one embodiment, an orthographic projection of a boundary between the second reflecting mirror and the first detection port on a lens of the camera is a boundary between the first shooting area and the second shooting area.

In one embodiment, the stroke of the light from the first area to be detected to the first shooting area through the first detection port is a first stroke; the stroke of the light from the second area to be detected to the second shooting area through the second detection port and the light channel is a second stroke;

wherein the first stroke is equal to the second stroke.

In one embodiment, the detection mechanism further comprises a first adjustment assembly, and the first reflector is mounted on the mounting frame through the first adjustment assembly;

the first adjusting component is configured to operably drive the first reflector to rotate relative to the mounting frame so as to adjust the angle between the first reflector and the second reflector; and/or, the first adjusting component is configured to operably drive the first reflector to move relative to the mounting frame so as to adjust the distance between the first reflector and the second reflector.

In one embodiment, the first adjustment assembly includes a sliding seat, a first locking member, and a second locking member;

the sliding seat is movably connected with the mounting frame, and the first locking piece is used for locking or unlocking the sliding seat and the mounting frame; the first reflector is rotatably connected to the sliding seat, and the second locking piece is used for locking or unlocking the first reflector and the sliding seat.

In one embodiment, the mounting bracket is provided with a first strip-shaped hole through which the first locking member passes, one end of the first locking member is in threaded connection with the sliding seat, the other end of the first locking member is provided with a first head, and the first head is used for abutting against one side, away from the sliding seat, of the mounting bracket.

In one embodiment, the sliding seat is provided with a second strip-shaped hole for the second locking member to penetrate through, one end of the second locking member is in threaded connection with the first reflector, the other end of the second locking member is provided with a second head, and the second head is used for abutting against one side of the sliding seat departing from the first reflector.

In one embodiment, the detection mechanism further comprises a second adjusting component and a mounting base, and the mounting frame is connected to the mounting base through the second adjusting component;

the second adjustment assembly is configured to operatively move and/or rotate the mounting bracket relative to the mounting base.

In one embodiment, the detection mechanism further comprises a light source assembly disposed on the second adjustment assembly or the mounting base, the light source assembly comprising a spatially angularly adjustable light source.

A test device comprising two test mechanisms as described in any of the above embodiments;

the two detection mechanisms are arranged corresponding to two ends of an object to be detected respectively, and the two ends of the object to be detected are provided with the first area to be detected and the second area to be detected respectively;

the camera of one of the detection mechanisms is used for imaging the first to-be-detected region and the second to-be-detected region at one end of the object to be detected; the camera of the other detection mechanism is used for imaging the first to-be-detected region and the second to-be-detected region at the other end of the object to be detected.

According to the detection mechanism and the detection device, light rays in the first detection area can enter the first shooting area of the camera through the first detection port, light rays in the second detection area can enter the second detection port, and then the light rays can reach the second shooting area of the camera through reflection of the reflector group (namely through the light ray channel). The first shooting area and the second shooting area of the camera respectively receive the light rays of the first to-be-detected area and the second to-be-detected area, so that the first to-be-detected area and the second to-be-detected area can be imaged simultaneously.

Compared with the technical scheme that cameras are required to be respectively arranged for each region to be detected for image acquisition, the detection mechanism in the application can simultaneously image the first region to be detected and the second region to be detected through one camera, so that the problem that two cameras are required to be arranged in one region to be detected is avoided, the cost of the device is reduced, the adjustment process before detection is simplified, and the adjustment time before detection is saved.

Drawings

Fig. 1 is a schematic diagram of a detection mechanism for detecting a battery cell in the prior art;

fig. 2 is a front view of a detecting mechanism according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the sensing mechanism shown in FIG. 2;

fig. 4 is a front view of a detecting mechanism according to another embodiment of the present invention;

fig. 5 is a top view of the detecting device according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to 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", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1, in the prior art, in the process of forming the battery cell 3 by laminating four material tapes, namely, an anode, a separator, a cathode, and a separator, and then winding the material tapes on a winding needle, a first camera 1 needs to be disposed for an end portion of the battery cell 3, and the first camera 1 is used to image the end portion of the battery cell 3 (i.e., the second region a2 to be detected), so as to obtain a relative position between the anode and the separator. Meanwhile, a second camera 2 needs to be arranged on the feeding side above the end of the battery cell 3 (i.e., the first region a1 to be detected), and the second camera 2 is used to image the material tape on the feeding side above the end of the battery cell 3, so as to obtain the relative position of the cathode and the diaphragm. 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 position of the anode and the diaphragm and the relative position of the cathode and the diaphragm. Further, in actual production, the alignment degrees of the anode and the cathode at the two ends of the battery cell 3 need to be detected, and therefore two cameras need to be arranged at the two ends of the battery cell 3 (only the first camera 1 and the second camera 2 for detecting one end of the battery cell 3 are shown in fig. 1, and the two cameras for detecting the other end of the battery cell 3 are not shown).

Therefore, when the alignment of the cathode and the anode is detected, one camera needs to be arranged for each region to be detected, so that the number of cameras is large, the detection cost is high, the debugging process of the positions of the cameras is complex, and the debugging time is long.

Based on this, the present invention provides a detection mechanism 100 for imaging (i.e. acquiring images) the first area to be detected a1 and the second area to be detected a 2. Referring to fig. 2 and 3, the detecting mechanism 100 includes a mounting frame 10, a camera 20 and a mirror assembly (not shown).

The mount 10 has a first inspection port 11 facing the first inspection area a1 and a second inspection port 12 facing the second inspection area a 2. The camera 20 is mounted to the mount 10, and a lens of the camera 20 includes a first photographing region b1 and a second photographing region b 2. The first photographing region b1 can receive light incident from the first region to be detected a1 through the first detecting port 11. The reflector set is mounted on the mounting frame 10, and a light path 33 is formed between the second inspection opening 12 and the second photographing region b2, so that the second photographing region b2 can receive light entering from the second inspection opening 12 and the light path 33 through the second inspection opening 12 and the second inspection area a 2.

In the detecting mechanism 100, the light of the first region a1 to be detected can enter the first photographing region b1 of the camera 20 through the first detecting opening 11, and the light of the second region a2 to be detected can enter the second detecting opening 12, so as to reach the second photographing region b2 of the camera 20 by the reflection of the reflecting mirror group (i.e. through the light path 33). The first shooting area b1 and the second shooting area b2 of the camera 20 receive light rays of the first area a1 to be detected and the second area a2 to be detected respectively, so that the first area a1 to be detected and the second area a2 to be detected can be imaged simultaneously.

Compared with the technical scheme that cameras are required to be respectively arranged for each area to be detected for image acquisition in the prior art, the detection mechanism 100 in the application can simultaneously image the first area to be detected a1 and the second area to be detected a2 through one camera 20, so that the requirement that two cameras 20 are arranged in one area to be detected is avoided, the device cost is reduced, the adjustment process before detection is simplified, and the adjustment time before detection is saved.

In the embodiment of the present invention, the reflector set includes a first reflector 31 and a second reflector 32 both mounted on the mounting frame 10. The first reflecting mirror 31 is attached to the second detection port 12 on the side facing the camera 20, and the second reflecting mirror 32 is disposed between the first detection port 11 and the second detection port 12. The first reflecting mirror 31 is used to reflect the light beam incident from the second detection area a2 through the second detection port 12 to the second reflecting mirror 32. The second reflecting mirror 32 is for reflecting the light reflected by the first reflecting mirror 31 to the second photographing region b2 of the camera 20. Thus, the light of the second object area a2 is incident from the second inspection opening 12 to the first reflector 31, the first reflector 31 reflects the light to the second reflector 32, and the light is reflected by the second reflector 32 to the second camera area b2 of the camera 20, so that the camera 20 can image the second camera area b 2.

In an embodiment, the orthographic projection of the boundary between the second reflector 32 and the first detecting opening 11 on the lens of the camera 20 is a projection line. The projection line is a boundary between the first photographing region b1 and the second photographing region b 2. Thus, the incident light from the first detecting port 11 can directly reach the first shooting area b1 of the camera 20, and the light reflected by the second reflecting mirror 32 can also directly reach the second shooting area b2 of the camera 20, so that the camera 20 images the first shooting area b1 and the second shooting area b2 at the same time, that is, images of the first area to be detected a1 and the second area to be detected a2 are obtained.

In order to enable the camera 20 to better present the images of the first region to be detected a1 and the second region to be detected a2 in the same image, in one embodiment, the stroke of the light from the first region to be detected a1 to the first photographing region b1 through the first detecting port 11 is the first stroke. The stroke of the light from the second detection port 12 through which the second detection region a2 passes and the light passage 33 to the second photographing region b2 is a second stroke. The first stroke is equal to the second stroke, so that the first to-be-detected region a1 and the second to-be-detected region a2 can simultaneously satisfy the shooting distance of the camera 20, and further, in an image formed by imaging the first to-be-detected region a1 and the second to-be-detected region a2 by the camera 20 (that is, in the same image, an image of the first to-be-detected region a1 and an image of the second to-be-detected region a2 are simultaneously displayed), the definition of the images of the first to-be-detected region a1 and the second to-be-detected region a2 is consistent, and the detection requirements can be satisfied.

It should be noted that, since the light of the second region a2 to be detected is reflected by the mirror group and then reaches the camera 20, the mirror group increases the travel of the light entering from the second region a2 to be detected. In order to make the first stroke and the second stroke equal, it is therefore necessary to make the distance from the second region to be detected a2 to the second detection port 12 smaller than the distance from the first region to be detected a1 to the first detection port 11.

It will be appreciated that equality of the first and second strokes described above is not to be understood as being a complete equality in value, but rather as allowing for a range of error. The error range may be determined according to specific detection requirements, and is not limited herein.

In some embodiments, the detection mechanism 100 further comprises a first adjustment assembly (not shown) by which the first mirror 31 is mounted on the mounting frame 10. The first adjusting assembly is configured to operatively drive the first reflecting mirror 31 to rotate relative to the mounting frame 10, so as to adjust an angle between the first reflecting mirror 31 and the second reflecting mirror 32, thereby adjusting an angle at which the light of the second area a2 to be detected enters the first reflecting mirror 31, so that the light of the second area a2 to be detected can enter the first reflecting mirror 31 from the second detecting port 12 at a proper angle, and it is ensured that the light of the second area a2 to be detected can accurately enter the second shooting area b2 of the camera 20 after being reflected by the first reflecting mirror 31 and the second reflecting mirror 32, which is beneficial to ensuring the imaging quality.

The first adjusting component is further configured to operatively drive the first reflector 31 to move relative to the mounting frame 10, so as to adjust a distance between the first reflector 31 and the second reflector 32, thereby adjusting a position at which the light reflected by the first reflector 31 enters the second reflector 32, and further adjusting a position at which the light reflected by the second reflector 32 enters the camera 20, so as to ensure that the light can accurately enter the second shooting area b2 of the camera 20, and thus, the imaging quality is favorably ensured.

It will be appreciated that in one embodiment, the first adjustment assembly may simply be configured to operatively rotate or move the first mirror 31 relative to the mounting bracket 10. Of course, in order to increase the flexibility of adjustment and reduce the difficulty of adjustment, in other embodiments, the first adjustment assembly may be configured to operatively rotate and move the first reflector 31 relative to the mounting frame 10.

In particular embodiments, the first adjustment assembly 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 frame 10. The first locking member 43 is used for locking or unlocking the sliding seat 41 and the mounting frame 10, and when the first locking member 43 locks the sliding seat 41 and the mounting frame 10, the sliding seat 41 cannot move relative to the mounting frame 10; when the first locking member 43 releases the sliding seat 41 from the mounting frame 10, the sliding seat 41 can move relative to the mounting frame 10. The first reflecting mirror 31 is rotatably coupled to the sliding base 41. The second locking member 42 is used for locking or unlocking the first reflecting mirror 31 and the sliding seat 41, and when the second locking member 42 locks the first reflecting mirror 31 and the sliding seat 41, the first reflecting mirror 31 cannot rotate relative to the sliding seat 41; when the second locker 42 releases the first reflecting mirror 31 from the sliding seat 41, the first reflecting mirror 31 can be rotated with respect to the sliding seat 41.

Thus, when it is necessary to adjust the distance between the first reflecting mirror 31 and the second reflecting mirror 32, the first locking member 43 is operated such that the first locking member 43 releases the sliding seat 41 from the mounting frame 10, and at this time, the sliding seat 41 is moved so as to bring the first reflecting mirror 31 away from or close to the second reflecting mirror 32. After the first reflecting mirror 31 is moved to the proper position, the first locking member 43 is operated to lock the sliding seat 41 and the mounting frame 10 together by the first locking member 43, and the sliding seat 41 and the mounting frame 10 are fixed together.

When the first reflector 31 needs to be adjusted to rotate relative to the second reflector 32, the second locking member 42 is operated to make the second locking member 42 release the first reflector 31 from the sliding seat 41, and the first reflector 31 can be rotated to be adjusted. When the first reflector 31 is rotated to the proper position, the second locking member 42 is operated to lock the first reflector 31 and the sliding seat 41 by the second locking member 42, and at this time, the first reflector 31 cannot rotate relative to the sliding seat 41.

Specifically, in the embodiment, the mounting frame 10 is provided with a first strip-shaped hole 12 through which the first locking member 43 passes, one end of the first locking member 43 is in threaded connection with the sliding seat 41, and the other end of the first locking member 43 is provided with a first head portion, and the first head portion is used for abutting against one side of the mounting frame 10, which is away from the sliding seat 41. In this way, 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 to separate the first head of the first locking member 43 from the mounting frame 10, i.e., the sliding seat 41 and the mounting frame 10 are loosened to enable the sliding seat 41 to move relative to the mounting frame 10, thereby bringing the first reflector 31 close to or away from the second reflector 32. After the first reflector 31 is moved to the proper position, the first locking member 43 is tightened to make the first head of the first locking member 43 abut against the mounting frame 10, so that the sliding seat 41 cannot move relative to the mounting frame 10, i.e. the first reflector 31 cannot move relative to the second reflector 32. Alternatively, the first locking member 43 may employ a fastening screw.

Optionally, the mounting bracket 10 is provided with a sliding groove 13, and the sliding seat 41 is provided with a sliding protrusion, which is slidably fitted in the sliding groove 13, so that the movement of the sliding seat 41 relative to the mounting bracket 10 is guided by the movement of the sliding protrusion along the sliding groove 13. It will be understood that the longitudinal extension of the first strip-shaped aperture 12 is parallel to the longitudinal extension of the chute 13. In practical operation, the operator can unscrew the first locking member 43 and then push the first locking member 43 to move along the first strip-shaped hole 12, so as to drive the sliding seat 41 and the first reflecting mirror 31 on the sliding seat 41 to move along the sliding slot 13, thereby achieving adjustment. The operator then tightens the first securing member 43 after adjustment into position.

Specifically, in the embodiment, the sliding seat 41 is provided with a second bar-shaped hole 410 for the second locking member 42 to pass through. One end of the second locking member 42 is in threaded connection with the first reflector 31, and the other end of the second locking member 42 has a second head portion for abutting against one side of the sliding seat 41 departing from the first reflector 31. In this way, when the angle between the first reflector 31 and the second reflector 32 needs to be adjusted, the second locking member 42 is loosened, so that the second head of the second locking member 42 is separated from the sliding seat 41, i.e., the first reflector 31 and the sliding seat 41 are loosened, so that the first reflector 31 can rotate relative to the sliding seat 41. After the first reflector 31 is rotated to a certain position, the second locking member 42 is tightened to make the second head of the second locking member 42 abut against the sliding seat 41, so that the first reflector 31 cannot rotate relative to the sliding seat 41, i.e. the first reflector 31 cannot rotate relative to the second reflector 32. Alternatively, the second locking member 42 may employ a fastening screw.

It should be noted that the second strip hole 410 extends lengthwise along an arc line, and the center of the arc line is located on the rotation axis of the first reflector 31. Thus, when the first reflecting mirror 31 is rotated after the second locking member 42 is loosened, the second locking member 42 can follow the first reflecting mirror 31 to move along the second bar hole 410. Of course, after the operator unscrews the second locking member 42, the operator pushes the second locking member 42 to move along the second elongated hole 410, so as to rotate the first reflecting mirror 31 for adjustment. The operator then tightens the first securing member 43 after adjustment into position.

Alternatively, the first reflecting mirror 31 may be mounted on the sliding base 41 by a pivot shaft 411 so that the first reflecting mirror 31 can rotate relative to the sliding base 41 about the pivot shaft 411 when the first locking member 43 releases the first reflecting mirror 31 and the sliding base 41.

Referring to fig. 4 and 5, in an embodiment of the present invention, the detecting mechanism 100 further includes a second adjusting component 50 and a mounting base 70. The mounting bracket 10 is attached to the mounting base 70 by the second adjustment assembly 50. The second adjusting assembly 50 is configured to operatively bring the mounting frame 10 to move and/or rotate relative to the mounting base 70, so as to adjust the position of the mounting frame 10, such that the first inspection opening 11 and the second inspection opening 12 on the mounting frame 10 are aligned with the first inspection area a1 and the second inspection area a2, respectively, so as to facilitate the camera 20 to simultaneously image the first inspection area a1 and the second inspection area a 2.

In particular embodiments, the second adjustment assembly 50 includes an adjustment seat 52 and a connection seat 51, the adjustment seat 52 being disposed on the mounting base 70 and configured to operatively move relative to the mounting base 70 along a first direction. The connecting seat 51 is disposed on the adjusting seat 52 and is configured to operatively rotate about a first rotational axis relative to the adjusting seat 52. The mounting bracket 10 is mounted on the coupling base 51 to move together with the coupling base 51. Wherein the first axis of rotation is parallel to the first direction. Thus, the mounting bracket 10 can be adjusted by moving the adjusting base 52 relative to the mounting base 70 along the first direction and rotating the connecting base 51 relative to the adjusting base 52 around the first rotation axis, so that the first detecting port 11 and the second detecting port 12 of the mounting bracket 10 are aligned with the first detecting area a1 and the second detecting area a2, respectively. In the embodiment shown in fig. 4, the first direction is an up-down direction, and the first rotation axis is parallel to the up-down direction.

Specifically, in the embodiment, the second adjusting assembly 50 further includes a third locking member, and the adjusting base 52 is provided with a third bar-shaped hole 521 for the third locking member to pass through. The connecting seat 51 is rotatably connected to the adjusting seat 52 around a first rotation axis, one end of the third locking member is in threaded connection with the connecting seat 51, and the other end of the third locking member has a third head portion for abutting against one side of the adjusting seat 52 away from the connecting seat 51. In this manner, when it is desired to adjust the rotation of the mounting bracket 10, the third locking member is unscrewed, so that the third head is separated from the adjustment seat 52. Then, connecting seat 51 and mounting frame 10 on connecting seat 51 are pushed to rotate relative to adjusting seat 52. After the position of the mounting frame 10 is adjusted to the right position, the third locking member is screwed down, so that the third head portion abuts against the adjusting seat 52, and the connecting seat 51 is prevented from continuously rotating relative to the adjusting seat 52. Alternatively, the third locking member may be a fastening screw.

Further, the third strip-shaped hole 521 extends lengthwise along an arc line, and the center of the arc line is located on the first rotation axis. So, when third retaining member unscrewed back connecting seat 51 rotated, third retaining member can follow connecting seat 51 and follow the motion of third bar hole 521 to avoid third retaining member to cause the interference to connecting seat 51's rotation.

Specifically, in the embodiment, the second adjusting assembly 50 further includes a fourth locking member, and the adjusting base 52 is provided with a fourth hole 522 through which the fourth locking member is inserted. It will be appreciated that the fourth aperture 522 extends lengthwise in the first direction. One end of the fourth locking member is in threaded connection with the mounting base 70, and the other end of the fourth locking member has a fourth head portion for abutting against one side of the adjusting seat 52 departing from the mounting base 70. In this manner, when it is desired to adjust the movement of the mounting frame 10, the fourth locking member is unscrewed, so that the fourth head is separated from the adjustment seat 52. Then, the adjusting seat 52 is pushed to move in the first direction, so that the connecting seat 51 and the mounting bracket 10 on the connecting seat 51 move in the first direction relative to the mounting base 70. After the position of the mounting bracket 10 is adjusted to the proper position, the fourth locking member is tightened to make the fourth head portion abut against the adjusting seat 52, and prevent the adjusting seat 52 from moving relative to the mounting base 70 in the first direction. Alternatively, the fourth locking member may be a fastening screw.

In some embodiments, the detection mechanism 100 further includes a light source assembly 60 disposed on the second adjustment assembly 50 or the mounting base 70, the light source assembly 60 including an angularly adjustable light source 64. The light source 64 is used for lighting the first region a1 to be detected and/or the second region a2 to be detected, so that the camera 20 can better image the first region a1 to be detected and/or the second region a2 to be detected. As such, before use, the irradiation position thereof may be adjusted by controlling the spatial angle of the light source 64 so that the light source 64 can irradiate the first area to be detected a1 and/or the second area to be detected a 2.

Specifically, in the 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 the second rotation axis. A light source mount 63 is rotatably coupled to the adjustment block 62 about a third axis of rotation perpendicular to the second axis of rotation, the light source being mounted on the light source mount 63. In this way, the spatial angle of the light source is adjusted by the rotation of the adjusting block 62 about the second rotation axis and the rotation of the light source base 63 about the third rotation axis, so that the light source 64 can accurately irradiate the first area to be detected a1 and/or the second area to be detected a 2. Optionally, the second rotation axis is perpendicular to the first rotation axis, and the third rotation axis is perpendicular to the second rotation axis.

Alternatively, the adjusting block 62 is connected to the connecting rod 61 in a clasping manner, so that the adjusting block 62 can rotate around the connecting rod 61 under the action of external force, i.e. the adjusting block 62 can rotate 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 be locked and fixed on the connecting rod 61 by a fastener such as a fastening screw, and the locking member can be loosened when it is necessary to rotate the adjusting block 62.

Optionally, the light source assembly 60 further comprises a fifth locking member, and the light source seat 63 is rotatably connected to the adjusting block 62 through a hinge shaft 621, and the axis of the hinge shaft 621 is the above third rotation axis. The adjusting block 62 is provided with a fifth strip-shaped hole 631 for the fifth locking member to pass through. One end of the fifth locking member is in threaded connection with the light source base 63, and the other end of the fifth locking member is provided with a fifth head which is used for abutting against one side of the adjusting block 62 departing from the light source base 63. So, when light source seat 63 need rotate, unscrew the fifth retaining member for fifth head and the separation of regulating block 62 on the fifth retaining member, can control light source seat 63 and rotate around articulated shaft 621 this moment. After the light source base 63 rotates to the right position, the fifth locking member is screwed, so that the fifth head of the fifth locking member abuts against the adjusting block 62, and the light source base 63 is prevented from continuously rotating relative to the adjusting block 62. Alternatively, the fifth locking member may be a fastening screw.

It should be noted that the fifth strip-shaped hole 631 extends lengthwise along an arc whose center is on the axis of the hinge shaft 621 (i.e., the third rotation axis). So, when light source seat 63 rotated after the fifth retaining member was unscrewed, the fifth retaining member can follow light source seat 63 along the motion of fifth bar-shaped hole 631 to avoid the fifth retaining member to cause the interference to the rotation of light source seat 63.

In one embodiment, the number of the light source assemblies 60 is two, wherein one light source assembly 60 is disposed on the adjusting seat 52, and the light source 64 of the light source assembly 60 is used for illuminating the first area to be detected a 1; another light source assembly 60 is disposed on the mounting base 70, and the light source 64 of the light source assembly 60 is used for illuminating the second region to be detected a 2. Alternatively, the light sources 64 of the two light source assemblies 60 may be point light sources.

In another embodiment, the number of the light source assemblies 60 is one, the first to-be-detected region a1 and the second to-be-detected region a2 are simultaneously illuminated by the light source 64 of the one light source assembly 60, and the light source 64 of the light source assembly 60 is a bar-shaped light source.

Based on above-mentioned detection mechanism 100, the utility model also provides a detection device, this detection device includes two detection mechanism 100. Specifically, two ends of the object to be detected are provided with a first area a1 to be detected and a second area a2 to be detected, and the two detection mechanisms 100 are respectively arranged at the two ends of the object to be detected, that is, one detection mechanism 100 images a first area a1 to be detected and a second area a2 to be detected at one end of the object to be detected; the other detecting mechanism 100 images the first to-be-detected area a1 and the second to-be-detected area a2 of the other end portion of the to-be-detected object.

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

It is understood that the object to be detected in the present application may be the battery cell 3 which is being wound on the winding needle as shown in fig. 1. Of course, the object to be detected may be other types of objects, and is not limited herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A detection mechanism for imaging a first region to be detected and a second region to be detected, the detection mechanism comprising:

2. The detection mechanism of claim 1, wherein the set of mirrors comprises a first mirror and a second mirror, both mounted on the mounting frame;

3. The inspection mechanism of claim 2, wherein an orthogonal projection of a boundary between the second reflector and the first inspection opening on a lens of the camera is a boundary between the first photographing region and the second photographing region.

4. The detecting mechanism according to claim 2, wherein a stroke of the light beam from the first region to be detected to the first photographing region through the first detecting port is a first stroke; the stroke of the light from the second to-be-detected area to the second shooting area through the second detection port and the light channel is a second stroke;

wherein the first stroke is equal to the second stroke.

5. The sensing mechanism of claim 2, further comprising a first adjustment assembly by which the first mirror is mounted to the mounting bracket;

the first adjusting assembly is configured to operably drive the first reflector to rotate relative to the mounting bracket to adjust the angle between the first reflector and the second reflector; and/or, the first adjusting component is configured to operably drive the first reflector to move relative to the mounting frame so as to adjust the distance between the first reflector and the second reflector.

6. The sensing mechanism of claim 5, wherein the first adjustment assembly includes a sliding seat, a first locking member, and a second locking member;

7. The detection mechanism as claimed in claim 6, wherein the mounting bracket defines a first strip-shaped hole for the first locking member to pass through, one end of the first locking member is connected to the sliding seat by a screw thread, and the other end of the first locking member has a first head portion for abutting against a side of the mounting bracket away from the sliding seat.

8. The detecting mechanism according to claim 6, wherein the sliding seat has a second bar-shaped hole for the second locking member to pass through, one end of the second locking member is connected to the first reflecting mirror via a screw, and the other end of the second locking member has a second head portion, and the second head portion is used for abutting against a side of the sliding seat away from the first reflecting mirror.

9. The detection mechanism according to any one of claims 1 to 8, further comprising a second adjustment assembly and a mounting base, wherein the mounting frame is connected to the mounting base through the second adjustment assembly;

10. The sensing mechanism of claim 9, further comprising a light source assembly disposed on the second adjustment assembly or the mounting base, the light source assembly comprising a spatially angularly adjustable light source.

11. A testing device comprising two testing mechanisms according to any one of claims 1 to 10;

the two detection mechanisms are respectively arranged corresponding to two ends of an object to be detected, and the two ends of the object to be detected are provided with the first area to be detected and the second area to be detected;