Pole piece detection device and pole piece splitting machine

Abstract

The utility model provides a pole piece detection device and a pole piece dividing and cutting machine, the pole piece detection device comprises a cross beam, a detection mechanism and a driving mechanism, a light source structure is used for emitting light to a pole piece dividing and cutting end face, and a deflection structure can deflect the light reflected by the pole piece dividing and cutting end face at the light source structure to set an included angle; the image imaging structure is used for presenting a burr image of the slitting end face of the pole piece, and the pole piece detection device is compact in size, convenient to operate and capable of saving space; and the driving mechanism can drive the detection mechanism to move in the extending direction of the cross beam, so that the detection mechanism is switched between the working position and the avoiding position, the pole piece detection device can detect burrs on the slitting end face of the pole piece conveniently, and meanwhile miniaturization of the pole piece detection device is achieved.

Description

Technical Field

[0001] The present application belongs to the field of detection technology. Specifically, the present application relates to a pole piece detection device and a pole piece slitting machine. Background Art

[0002] During the electrode slitting process, burrs often form on the electrode edges. These burrs not only affect the integrity of the battery's internal structure but can also become a source of safety hazards such as battery short circuits and thermal runaway. Therefore, it is necessary to detect burrs on the electrode end faces.

[0003] In the existing technology, the detection mechanism for burrs on the end face of the pole piece has problems such as large size, complex installation and inconvenient operation. It is difficult to effectively integrate it into the automated production line, resulting in limited production efficiency. Summary of the Invention

[0004] One purpose of the embodiments of the present application is to provide a new technical solution for a pole piece detection device and a pole piece slitting machine.

[0005] According to a first aspect of an embodiment of the present application, a pole piece detection device is provided, comprising:

[0006] beam;

[0007] A detection mechanism, comprising a light source structure, a deflection structure, and an image formation structure. The light source structure is used to emit light toward the pole piece cut end face. The deflection structure is capable of deflecting the light reflected from the pole piece cut end face at the light source structure at a set angle to the image formation structure. The image formation structure is used to present a burr image of the pole piece cut end face.

[0008] A driving mechanism, wherein the detection mechanism is connected to the crossbeam through the driving mechanism, and the driving mechanism can drive the detection mechanism to move along the extension direction of the crossbeam so as to switch the detection mechanism between a working position and an avoidance position.

[0009] Optionally, a plurality of detection mechanisms are included, and the plurality of detection mechanisms are correspondingly connected to the beam at intervals through a plurality of driving mechanisms.

[0010] Optionally, the driving mechanism is a linear motor.

[0011] Optionally, the detection mechanism includes a detection frame, and the light source structure, the deflection structure and the image imaging structure are all connected to the detection frame;

[0012] The deflection structure includes a frame and a prism. The frame is connected to the detection frame and forms a deflection space. The prism is arranged in the deflection space. The light source structure is connected to the detection frame and is opposite to the reflective surface of the prism along the extension direction of the beam. The image imaging structure is fixedly connected to the frame and is opposite to the reflective surface of the prism along the extension direction perpendicular to the beam.

[0013] Optionally, the detection mechanism includes an adjustment structure, the image imaging structure includes a detection camera, the adjustment structure is movably connected to the detection frame through an adjustment structure and has an extended position and a retracted position;

[0014] When the adjustment structure is in the extended position, the adjustment structure is used to penetrate the pole piece and detect the offset position of the pole piece, and the detection camera can adjust the focal length according to the offset position;

[0015] When the adjustment structure is in the retracted position, the adjustment structure is disengaged from the pole piece.

[0016] Optionally, the adjustment structure includes a correction sensor and a support part, the correction sensor is movably connected to the detection frame along the extension direction of the beam through the adjustment structure and is used to detect the offset position of the pole piece, and the support part is connected to the correction sensor and is used to penetrate the pole piece.

[0017] Optionally, the adjusting structure has a wire groove, the detecting frame has a locking hole, and the adjusting structure is locked to the locking hole by a locking piece passing through the wire groove.

[0018] Optionally, the wire trough is arranged along the extending direction of the beam;

[0019] When the locking member is released from locking the locking hole, the adjustment structure can slide along the locking member through the wire groove.

[0020] Optionally, the detection mechanism includes an adjustment structure, which is movably connected to the detection frame through an adjustment structure and has an extended position and a retracted position;

[0021] When the adjustment structure is in the extended position, the adjustment structure is used to detect the offset position of the pole piece, and the driving mechanism can drive the detection mechanism to move along the extension direction of the beam according to the offset position;

[0022] When the adjustment structure is in the retracted position, the adjustment structure is disengaged from the pole piece.

[0023] According to a second aspect of an embodiment of the present application, a pole piece slitting machine is provided, which includes the pole piece detection device described in the first aspect.

[0024] One of the technical effects of this application is:

[0025] An embodiment of the present application provides a pole piece detection device, which includes a crossbeam, a detection mechanism and a driving mechanism. The light source structure is used to emit light to the pole piece cutting end face. The deflection structure can deflect the light reflected by the pole piece cutting end face at the light source structure to a set angle so that the deflected light is transmitted to the image imaging structure. The image imaging structure is used to present the burr image of the pole piece cutting end face. The pole piece detection device is compact in size, easy to operate and saves space; and the driving mechanism can drive the detection mechanism to move along the extension direction of the crossbeam so that the detection mechanism can switch between the working position and the avoidance position. While facilitating the pole piece detection device to detect the burrs on the pole piece cutting end face, the miniaturization of the pole piece detection device is achieved.

[0026] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0028] Figure 1 A front view of a pole piece detection device provided in one embodiment of the present application;

[0029] Figure 2 A side view of a pole piece detection device provided in one embodiment of the present application;

[0030] Figure 3 for Figure 1 A partial enlarged view of

[0031] Figure 4 A schematic diagram of a detection mechanism of a pole piece detection device provided by one embodiment of the present application switching between a working position and a avoidance position;

[0032] Figure 5 A schematic diagram of an adjustment structure of a pole piece detection device provided by one embodiment of the present application switching between an extended position and a retracted position;

[0033] Figure 6 for Figure 5 A partial enlarged view of the .

[0034] Among them: 1. Beam; 2. Detection mechanism; 21. Detection frame; 22. Light source structure; 23. Deflection structure; 231. Mirror frame; 232. Prism; 24. Image imaging structure; 25. Adjustment structure; 251. Correction sensor; 252. Support part; 26. Adjustment structure; 261. Wire trough; 3. Driving mechanism. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0036] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0037] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] An embodiment of the present application provides a pole piece detection device for detecting burrs on the cut end face of the pole piece; the light source structure and the image imaging structure of the pole piece detection device are arranged at an angle, and after the light source structure illuminates the pole piece at the cut end face of the pole piece, the reflected light at the cut end face of the pole piece can be deflected to the image imaging structure through the deflection structure, thereby realizing a three-dimensional setting of the pole piece detection device; and the driving mechanism can drive the detection mechanism to move along the extension direction of the beam, so that the detection mechanism switches between the working position and the avoidance position, thereby achieving the purpose of miniaturization of the pole piece detection device while facilitating the pole piece detection device to detect burrs on the cut end face of the pole piece.

[0042] Reference Figure 1 and Figure 2 , an embodiment of the present application provides a pole piece detection device, the pole piece detection device comprising:

[0043] Beam 1;

[0044] Detection mechanism 2, detection mechanism 2 includes a light source structure 22, a deflection structure 23 and an image imaging structure 24. The light source structure 22 is used to emit light to the end face of the pole piece. The deflection structure 23 can deflect the light reflected from the end face of the pole piece at the light source structure 22 to the image imaging structure 24 at a set angle. The light path diagram is as follows: Figure 5 and Figure 6 As shown, the image imaging structure 24 is used to present the burr image of the electrode cutting end surface;

[0045] The driving mechanism 3 , the detecting mechanism 2 is connected to the beam 1 through the driving mechanism 3 , and the driving mechanism 3 can drive the detecting mechanism 2 to move along the extension direction of the beam 1 so that the detecting mechanism 2 switches between the working position and the avoidance position.

[0046] During the battery production process, electrode cutting is a crucial step in ensuring consistent performance across each battery cell. High-precision electrode cutting ensures that each electrode is the same size and shape, ensuring consistent performance and lifespan across the battery cells.

[0047] After the electrode is cut, burrs are easily formed on the cut end surface of the electrode, and the size of the burrs will affect the safety of the finished battery; therefore, it is necessary to inspect the cut end surface of the electrode to eliminate electrodes with safety hazards.

[0048] In this embodiment, the detection mechanism 2 is connected to the crossbeam 1 via the driving mechanism 3 . The crossbeam 1 serves as a supporting structure for carrying one or more detection mechanisms 2 , and can ensure the stability of the detection mechanism 2 .

[0049] After the pole piece is cut, it will be sent to the detection mechanism 2. The cutting end face of the pole piece is close to the light source structure 22. A light path is formed between the light source structure 22 and the image imaging structure 24, and the light path is deflected at a set angle at the deflection structure 23. The range of the set angle can be 30°-150°, for example, the setting angle is 60°, 90° or 120°, that is, the light reflected from the cutting end face of the pole piece can be deflected by 60°, 90° or 120°, so that the image sampled at the cutting end face of the pole piece is transmitted to the image imaging structure 24 for detection. At the same time, the light source structure 22 and the image imaging structure 24 can be arranged at a relative angle to realize the three-dimensional setting of the pole piece detection device, thereby achieving the purpose of miniaturization of the pole piece detection device.

[0050] In this embodiment, the crossbeam 1 is along Figure 1 The horizontal extension of the motor or cylinder can drive the detection mechanism 2 along the Figure 1 For example, when the driving mechanism 3 drives the detection mechanism 2 to approach the pole piece, it reaches the working position, and when the driving mechanism 3 drives the detection mechanism 2 to move away from the pole piece, it reaches the avoidance position, so as to realize the switching of the detection mechanism 2 between the working position and the avoidance position.

[0051] In one embodiment, see Figure 4 , the driving mechanism 3 can drive the detection mechanism 2 along Figure 4 When the electrode detection device does not need to detect the electrode at the cut end face, the detection mechanism 2 is in the Figure 4 When the electrode detection device detects the electrode at the cutting end face, the detection mechanism 2 moves to the right under the drive mechanism 3 to achieve the detection mechanism 2 from Figure 4 Switching from the avoidance position to the working position.

[0052] When the pole piece detection device detects the cutting end face of the pole piece, the driving mechanism 3 drives the detection mechanism 2 to move to the working position, and the cutting end face of the pole piece is close to the light source structure 22. The image imaging structure 24 can present the burr image of the cutting end face of the pole piece through the deflection structure 23. When the burr image of the cutting end face of the pole piece presented by the image imaging structure 24 meets the standard, the pole piece can be used as a qualified pole piece; when the burr image of the cutting end face of the pole piece presented by the image imaging structure 24 does not meet the standard, the pole piece can be used as a discarded pole piece, or the pole piece can be processed again to obtain a qualified pole piece.

[0053] When the electrode detection device completes the detection of the slit end face of the electrode, the driving mechanism 3 drives the detection mechanism 2 to move to the avoidance position to facilitate the continued transportation of the electrode after the detection is completed.

[0054] In a specific embodiment, the slitting equipment divides the pole piece into 5 strips, and 5 detection mechanisms 2 are arranged at equal intervals on the beam 1, that is, a set of pole piece detection devices can be arranged to detect the 5 pole pieces. The 5 detection mechanisms 2 of the pole piece detection device correspond to detecting the slitting end faces of the 5 pole pieces. The light source structure 22 of each detection mechanism 2 is close to the slitting end face of a pole piece, and the image imaging structure 24 can present the burr of the pole piece slitting end face through the deflection structure 23. The pole piece detection device can improve the efficiency of detecting the slitting side face of the pole piece after slitting.

[0055] The pole piece detection device provided in the embodiment of the present application includes a crossbeam 1, a detection mechanism 2 and a driving mechanism 3. The detection mechanism 2 includes a light source structure 22, a deflection structure 23 and an image imaging structure 24. The light source structure 22 is used to emit light to the pole piece cutting end face. The deflection structure 23 can deflect the light reflected by the pole piece cutting end face at the light source structure 22 to a set angle so that the deflected light is transmitted to the image imaging structure 24. The image imaging structure 24 is used to present the burr image of the pole piece cutting end face. The pole piece detection device is compact in size, easy to operate and saves space; and the driving mechanism 3 can drive the detection mechanism 2 to move along the extension direction of the crossbeam 1 so that the detection mechanism 2 can switch between the working position and the avoidance position. While facilitating the pole piece detection device to detect the burrs on the pole piece cutting end face, the pole piece detection device is miniaturized, which can improve the detection efficiency of the pole piece detection device in the production line.

[0056] In some embodiments, see Figure 1 The pole piece detection device includes a plurality of detection mechanisms 2, and the plurality of detection mechanisms 2 are connected to the beam 1 at intervals through a plurality of driving mechanisms 3.

[0057] In the above embodiment, multiple detection mechanisms 2 are arranged at intervals on the beam 1 through multiple driving mechanisms 3. The multiple detection mechanisms 2 can be individually controlled by the multiple driving mechanisms 3. For example, one driving mechanism 3 controls one detection mechanism 2 to move along the extension direction of the beam 1, and the multiple detection mechanisms 2 perform detection on the cutting end faces of multiple pole pieces, so that the pole piece detection device is suitable for the synchronous detection of multiple strip pole pieces, thereby improving the efficiency of the pole piece detection device in detecting burrs on the cutting end faces of the pole pieces.

[0058] In a specific embodiment, see Figure 1 , multiple detection mechanisms 2 are connected to the beam 1 at equal intervals through multiple driving mechanisms 3, so that one detection mechanism 2 detects one pole piece correspondingly, avoiding mutual interference between adjacent pole pieces during detection.

[0059] In one embodiment, the driving mechanism 3 is a linear motor.

[0060] In this embodiment, the linear motor directly converts electrical energy into mechanical energy for the linear motion of the detection mechanism 2, avoiding the need to set up conversion mechanisms such as gears, couplings or pulleys between the detection mechanism 2 and the drive mechanism 3, thereby simplifying the structure of the pole piece detection device.

[0061] Moreover, the linear motor has high positioning accuracy and fast start-up characteristics, and can independently control each detection mechanism 2. The detection mechanism 2 realizes the avoidance of the pole piece and the switching of the working state through lateral movement, ensuring the accuracy and efficiency of the driving mechanism 3 driving the detection mechanism 2 to move.

[0062] In some embodiments, see Figure 1 The detection mechanism 2 includes a detection frame 21, and the light source structure 22, the deflection structure 23 and the image imaging structure 24 are all connected to the detection frame 21;

[0063] The deflection structure 23 includes a mirror frame 231 and a prism 232. The mirror frame 231 is connected to the detection frame 21 and forms a deflection space. The prism 232 is arranged in the deflection space. The light source structure 22 is connected to the detection frame 21 and is opposite to the reflective surface of the prism 232 along the extension direction of the beam 1. The image imaging structure 24 is fixedly connected to the mirror frame 231 and is opposite to the reflective surface of the prism 232 along the extension direction perpendicular to the beam 1.

[0064] In this embodiment, the light source structure 22 has a hollow area connected to the deflection space, and the image imaging structure 24 extends into the deflection space and is fixedly connected to the mirror frame 231 to ensure that the image transmission path from the light source structure 22 and the deflection structure 23 to the image imaging structure 24 is unobstructed; and the fixed connection between the image imaging structure 24 and the deflection structure 23 can fix the relative angle between the image imaging structure 24 and the deflection structure 23, thereby ensuring the compactness and integration of the overall structure of the image imaging structure 24 and the deflection structure 23.

[0065] In some embodiments, see Figure 1 、 Figure 5 and Figure 6 , the detection mechanism 2 includes an adjustment structure 25, the image imaging structure 24 includes a detection camera, the adjustment structure 25 is movably connected to the detection frame 21 through the adjustment structure 26 and has an extended position and a retracted position;

[0066] When the adjustment structure 25 is in the extended position, the adjustment structure 25 is used to penetrate the pole piece and detect the offset position of the pole piece, and the detection camera can adjust the focal length according to the offset position;

[0067] When the adjustment structure 25 is in the retracted position, the adjustment structure 25 is disengaged from the pole piece.

[0068] In this embodiment, when the electrode detection device detects the cut end face of the electrode, the electrode is supported and transported by the electrode roller, and the supported electrode can pass through the adjustment structure 25; the driving mechanism 3 can first drive the beam 1 to move, and the detection mechanism 2 moves to the working position under the drive of the beam 1; then the adjustment structure 25 is moved on the detection frame 21 by the manual, electric or pneumatic adjustment structure 26, so that the adjustment structure 25 moves laterally in the direction close to the electrode to the position as shown in FIG. Figure 5 In the extended position shown, the adjustment structure 25 is used to detect the offset position of the pole piece. The detection camera can adjust the focal length according to the offset position to achieve fine-tuning of the automatic focus of the detection camera, avoid the defocusing of the detection camera caused by the offset of the pole piece, and ensure the accuracy of the image imaging structure 24 in detecting the burrs on the end face of the pole piece.

[0069] Moreover, when the pole piece is offset, the adjustment structure 25 can track the movement of the pole piece, avoiding the problem of pole piece breakage caused by collision with the detection mechanism 2 after the pole piece is offset, and ensuring the structural integrity of the pole piece after cutting during detection.

[0070] When the electrode detection device completes the detection of the electrode segmented end face, the adjustment structure 25 is moved on the detection frame 21 by the adjustment structure 26, so that the adjustment structure 25 moves laterally in the direction away from the electrode to the position as shown in FIG. Figure 5 The retracted position shown is that it is out of the adjustment structure 25 ; then the driving mechanism 3 drives the crossbeam 1 to move, and the detection mechanism 2 moves to the avoidance position driven by the crossbeam 1 .

[0071] In some embodiments, see Figure 1 The adjustment structure 25 includes a correction sensor 251 and a support part 252. The correction sensor 251 is movably connected to the detection frame 21 along the extension direction of the beam 1 through the adjustment structure 26 and is used to detect the offset position of the pole piece. The support part 252 is connected to the correction sensor 251 and is used to penetrate the pole piece.

[0072] In this embodiment, the adjustment structure 26 can drive the correction sensor 251 and the support part 252 to move together along the first direction, and the correction sensor 251 and the support part 252 are opposite to each other up and down; when the correction sensor 251 moves to the extended position, the cut pole piece passes through the groove in the support part 252, ensuring the position stability of the pole piece during detection; at the same time, the correction sensor 251 and the support part 252 are opposite to each other up and down and can detect the edge position of the pole piece, so that the correction sensor 251 can perform position detection on the cut end face of the pole piece to realize the detection of the pole piece offset position; and the correction sensor 251 can send information about the pole piece offset position to the detection camera, and then the detection camera performs real-time zooming according to the feedback offset position information, so as to complete the accurate detection of burrs at the cut end face of the pole piece through the detection camera; then the correction sensor 251 and the support part 252 move together in the direction away from the pole piece, and the pole piece is disengaged from the groove in the support part 252 to ensure the transmission of the pole piece.

[0073] In some embodiments, see Figure 1 and Figure 3 The adjusting structure 26 has a wire groove 261 , and the detection frame 21 has a locking hole. The adjusting structure 26 is locked to the locking hole by a locking piece passing through the wire groove 261 .

[0074] In this embodiment, when the locking piece is connected to the locking hole but not locked to the locking hole, the adjustment structure 26 can slide along the locking piece through the wire groove 261, thereby achieving the purpose of the adjustment structure 26 driving the correction sensor 251 to move; after the correction sensor 251 is adjusted into place, the adjustment structure 26 can be locked to the locking hole through the locking piece, while ensuring that the correction sensor 251 accurately detects the offset position of the pole piece, and at the same time, flexible regulation of the correction sensor 251 is achieved.

[0075] In some embodiments, see Figure 1 , the wire groove 261 is arranged along the extension direction of the beam 1;

[0076] When the locking member is released from the locking hole, the adjustment structure 26 can slide along the locking member through the wire groove 261 .

[0077] In this embodiment, when the driving mechanism 3 drives the detection mechanism 2 to move along the extension direction of the beam 1, the detection mechanism 2 drives the correction sensor 251 to move in the extension direction of the beam 1, thereby realizing coarse adjustment of the correction sensor 251 in the extension direction of the beam 1; further, the adjustment structure 26 can slide along the locking piece through the wire groove 261, and can drive the correction sensor 251 to move in the extension direction of the beam 1 through the adjustment structure 26, thereby realizing fine adjustment of the correction sensor 251, that is, through the cooperation of the driving mechanism 3 and the adjustment structure 26, a two-stage adjustment of the movement of the correction sensor 251 in the extension direction of the beam 1 is realized, the first-stage coarse adjustment can increase the speed of the movement of the correction sensor 251, and the second-stage fine adjustment can ensure the accuracy of the movement of the correction sensor 251.

[0078] In some embodiments, see Figure 1 , the detection mechanism 2 includes an adjustment structure 25, the adjustment structure 25 is movably connected to the detection frame 21 through the adjustment structure 26 and has an extended position and a retracted position;

[0079] When the adjustment structure 25 is in the extended position, the adjustment structure 25 is used to detect the offset position of the pole piece, and the driving mechanism 3 can drive the detection mechanism 2 to move along the extension direction of the beam 1 according to the offset position;

[0080] When the adjustment structure 25 is in the retracted position, the adjustment structure 25 is disengaged from the pole piece.

[0081] In this embodiment, when the pole piece detection device detects the cutting end face of the pole piece, the detection mechanism 2 can be driven to move to the working position by the driving mechanism 3; then the adjustment structure 25 is moved on the detection frame 21 by the adjustment structure 26, so that the adjustment structure 25 moves to the extended position in the direction close to the pole piece. The adjustment structure 25 is used to detect the offset position of the pole piece and transmit the information of the offset position to the driving mechanism. The driving mechanism 3 can drive the detection mechanism 2 to follow the extension direction of the beam 1 according to the offset position, so as to ensure the accuracy of the image imaging structure 24 in detecting the burrs on the cutting end face of the pole piece.

[0082] In a specific embodiment, the correction sensor 251 of the adjustment structure 25 is used to detect the offset position of the pole piece and send the offset position information of the pole piece to the control unit. The control unit controls the action of the driving mechanism 3 according to the received offset position information, so as to fine-tune the position of the detection mechanism 2 through the driving mechanism 3, thereby ensuring that the image imaging structure 24 can be adjusted to the appropriate position.

[0083] An embodiment of the present application further provides a pole piece slitting machine, which includes the pole piece detection device mentioned above.

[0084] In this embodiment, the pole piece detection device of the pole piece slitting machine sets the deflection structure 23 between the light source structure 22 and the image imaging structure 24. The light source structure 22 is used to emit light to the pole piece slitting end face. The deflection structure 23 can deflect the light reflected by the pole piece slitting end face at the light source structure 22 to a set angle so that the deflected light is transmitted to the image imaging structure 24. The image imaging structure 24 is used to present the burr image of the pole piece slitting end face. The pole piece detection device is compact in size, easy to operate and saves space; and the driving mechanism 3 can drive the detection mechanism 2 to move along the extension direction of the beam 1, so that the detection mechanism 2 can switch between the working position and the avoidance position. While facilitating the pole piece detection device to detect the burrs on the pole piece slitting end face, the miniaturization of the pole piece detection device is realized, which can improve the detection efficiency of the pole piece detection device in the production line.

[0085] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A pole piece detection device, characterized in that: include: beam (1); A detection mechanism (2), the detection mechanism (2) comprising a light source structure (22), a deflection structure (23) and an image imaging structure (24), the light source structure (22) being used to emit light toward the pole piece cutting end face, the deflection structure (23) being able to deflect light reflected from the pole piece cutting end face at the light source structure (22) to the image imaging structure (24) at a set angle, and the image imaging structure (24) being used to present a burr image of the pole piece cutting end face; A driving mechanism (3), wherein the detection mechanism (2) is connected to the crossbeam (1) via the driving mechanism (3), and the driving mechanism (3) is capable of driving the detection mechanism (2) to move along the extension direction of the crossbeam (1) so as to switch the detection mechanism (2) between a working position and an avoidance position.

2. The pole piece detection device according to claim 1, characterized in that: It comprises a plurality of detection mechanisms (2), wherein the plurality of detection mechanisms (2) are connected to the crossbeam (1) at intervals through a plurality of driving mechanisms (3).

3. The pole piece detection device according to claim 1, characterized in that: The driving mechanism (3) is a linear motor.

4. The pole piece detection device according to claim 1, characterized in that: The detection mechanism (2) comprises a detection frame (21), and the light source structure (22), the deflection structure (23) and the image formation structure (24) are all connected to the detection frame (21); The deflection structure (23) comprises a mirror frame (231) and a prism (232); the mirror frame (231) is connected to the detection frame (21) and forms a deflection space; the prism (232) is arranged in the deflection space; the light source structure (22) is connected to the detection frame (21) and is opposite to the reflection surface of the prism (232) along the extension direction of the beam (1); and the image formation structure (24) is fixedly connected to the mirror frame (231) and is opposite to the reflection surface of the prism (232) along the extension direction perpendicular to the beam (1).

5. The pole piece detection device according to claim 4, characterized in that: The detection mechanism (2) includes an adjustment structure (25), the image imaging structure (24) includes a detection camera, and the adjustment structure (25) is movably connected to the detection frame (21) through an adjustment structure (26) and has an extended position and a retracted position; When the adjustment structure (25) is in the extended position, the adjustment structure (25) is used to penetrate the pole piece and detect the offset position of the pole piece, and the detection camera can adjust the focal length according to the offset position; When the adjustment structure (25) is in the retracted position, the adjustment structure (25) is separated from the pole piece.

6. The pole piece detection device according to claim 5, characterized in that: The adjustment structure (25) comprises a deflection correction sensor (251) and a support portion (252); the deflection correction sensor (251) is movably connected to the detection frame (21) along the extension direction of the crossbeam (1) via an adjustment structure (26) and is used to detect the offset position of the pole piece; the support portion (252) is connected to the deflection correction sensor (251) and is used to penetrate the pole piece.

7. The pole piece detection device according to claim 5, characterized in that: The adjusting structure (26) has a wire groove (261), the detection frame (21) has a locking hole, and the adjusting structure (26) is locked to the locking hole through a locking piece passing through the wire groove (261).

8. The pole piece detection device according to claim 7, characterized in that: The wire trough (261) is arranged along the extension direction of the crossbeam (1); When the locking member is released from the locking hole, the adjustment structure (26) can slide along the locking member through the wire groove (261).

9. The pole piece detection device according to claim 4, characterized in that: The detection mechanism (2) includes an adjustment structure (25), which is movably connected to the detection frame (21) via an adjustment structure (26) and has an extended position and a retracted position; When the adjustment structure (25) is in the extended position, the adjustment structure (25) is used to detect the offset position of the pole piece, and the driving mechanism (3) can drive the detection mechanism (2) to move along the extension direction of the beam (1) according to the offset position; When the adjustment structure (25) is in the retracted position, the adjustment structure (25) is separated from the pole piece.

10. A pole piece cutting machine, characterized in that: The invention comprises a pole piece detection device as described in any one of claims 1 to 9.

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