Burr detection device and flaking equipment

Abstract

The utility model relates to a burr detection device and flaking equipment. When burr detection is carried out on a pole piece, the pole piece is firstly transferred to a deviation rectifying table; the first vision module obtains the position information of the pole piece, and the three-axis driving mechanism can drive the deviation rectifying table to rectify the deviation of the pole piece according to the position information. And after rectification is completed, the second visual module acquires image information of the edge of the pole piece. By analyzing the collected image information, whether burrs of the pole piece exceed the standard or not can be judged. Moreover, in the working process of the second visual module, the deviation rectifying table is driven by the three-axis driving mechanism to translate and rotate in the second visual module, so that all the edges of the pole piece can enter the visual angle range of the second visual module in sequence, and the second visual module can obtain the image information of all the edges of the pole piece. Therefore, the burr detection device and the flaking equipment can carry out full-area burr detection on the pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery equipment, in particular to a burr detection device and a film making device. Background Art

[0002] The edges of the pole pieces required for the lamination process may produce burrs, and the burrs will pierce the diaphragm, causing the positive and negative poles to contact and cause a short circuit. In order to improve the product safety of lithium batteries, the pole pieces are regularly inspected for burrs during the actual production process. After production, the pole pieces will have multiple edges and corners between the edges. Traditional visual inspection solutions are limited by factors such as depth of field and resolution, and cannot detect the entire area of ​​the pole piece. Therefore, the current method of full-area burr detection of pole pieces is mainly manual sampling. However, with the popularization of the lamination process, the demand for burr detection after production has increased, and the manual sampling method has gradually been unable to meet the demand. Utility Model Content

[0003] Based on this, it is necessary to provide a burr detection device and a production equipment that can perform burr detection on the entire area of ​​the pole piece to address the above-mentioned problem.

[0004] A burr detection device, comprising:

[0005] The deflection correction table can carry the workpiece to be tested;

[0006] A three-axis driving mechanism capable of driving the deflection correction platform to translate along a first direction and a second direction, and to rotate around an axis extending along a third direction;

[0007] A first visual module, capable of acquiring position information of a workpiece to be measured carried on the deflection correction platform so as to provide the three-axis driving mechanism with a deflection correction operation; and

[0008] The second visual module, the three-axis driving mechanism can drive the correction platform to translate and rotate, and make the edges of the workpiece to be measured pass through the viewing angle range of the second visual module in sequence, and the second visual module can collect image information of the edge of the workpiece to be measured passing through the viewing angle range for burr detection.

[0009] In one of the embodiments, the bearing surface of the deflection correction platform is configured as a light absorbing surface.

[0010] In one embodiment, the deflection correction platform can expose the edge of the workpiece to be measured, and the burr detection device also includes a supporting mechanism, which includes a driving member and a diffuse reflection plate. The diffuse reflection plate can be moved under the edge of the workpiece to be measured under the drive of the driving member.

[0011] In one embodiment, a U-shaped groove is provided on the surface of the deflection correction platform, and the edge of the workpiece to be measured is exposed in the U-shaped groove. The diffuse reflection plate can be inserted into the U-shaped groove and moved under the drive of the driving member to move under the edge of the workpiece to be measured.

[0012] In one embodiment, the first vision module and the second vision module are respectively arranged at a deviation correction station and a detection station spaced apart from each other, and the deviation correction platform can move between the deviation correction station and the detection station under the drive of the three-axis driving mechanism.

[0013] In one embodiment, the second vision module includes a horizontal camera and a vertical camera, both of which can collect image information of the edge of the workpiece to be measured passing through the viewing angle range, and the optical axis of the horizontal camera is parallel to the supporting surface of the deflection correction table, and the optical axis of the vertical camera is perpendicular to the supporting surface of the deflection correction table.

[0014] In one embodiment, the horizontal camera and the vertical camera are capable of collecting image information during the movement of the workpiece to be measured.

[0015] In one embodiment, it further comprises a transfer mechanism, which can transfer the workpiece to be measured from the conveyor line to the deflection correction table, and can transfer the workpiece to be measured from the deflection correction table to a waste box.

[0016] In one embodiment, the deflection correction table can be moved to the film placement position under the drive of the three-axis driving mechanism, and the transfer mechanism can transfer the workpiece to be measured from the conveyor line to the deflection correction table located at the film placement position, and can transfer the workpiece to be measured from the deflection correction table located at the film placement position to the waste box.

[0017] A film-making device comprises a burr detection device as described in any one of the preferred embodiments above and a conveyor line, wherein the conveyor line is used to convey the electrode obtained by slicing, and the electrode conveyed by the conveyor line can be transferred to the deflection correction table.

[0018] When the burr detection device and the film-making equipment mentioned above are performed on the pole piece, the pole piece is first transferred to the deflection correction table. The first visual module obtains the position information of the pole piece, and the three-axis drive mechanism can drive the deflection correction table to complete the deflection correction of the pole piece according to the above position information. After the deflection correction is completed, the second visual module obtains the image information of the edge of the pole piece. By analyzing the collected image information, it can be determined whether the burrs of the pole piece exceed the standard. Moreover, during the operation of the second visual module, the three-axis drive mechanism drives the deflection correction table to translate and rotate in the second visual module, which can ensure that all edges of the pole piece can successively enter the viewing angle range of the second visual module, so the second visual module can obtain the image information of all edges of the pole piece. Therefore, the above-mentioned burr detection device and the film-making equipment can perform full-area burr detection on the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a partial structural schematic diagram of the film-making equipment in a preferred embodiment of the utility model;

[0021] Figure 2 for Figure 1 A front view of a burr detection device in the film-making equipment shown. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, 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 invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] See also Figure 1 The utility model provides a film-making device 10 and a burr detection device 100. The film-making device 10 includes the burr detection device 100 and a conveyor line 200.

[0029] The film-making device 10 can cut the electrode sheet coil into the electrode sheet 20 by various methods such as laser film-making, metal knife film-making and metal mold film-making, and the electrode sheet 20 obtained includes the electrode ear. The conveyor line 200 is used to convey the obtained electrode sheet 20, and can convey the electrode sheet 20 to the lamination or other subsequent stations. When it is necessary to conduct random inspection on the electrode sheet 20, the electrode sheet 20 conveyed by the conveyor line 200 can be transferred to the burr detection device 100, and the burr detection device 100 automatically detects whether the edge burr of the electrode sheet 20 exceeds the standard.

[0030] It should be pointed out that the burr detection device 100 is not limited to the burr detection on the pole piece 20, but can also be applied to other fields such as liquid crystal display and metal processing to perform burr detection on display screens and metal plates to be tested.

[0031] Please also read Figure 2 The burr detection device 100 in the preferred embodiment of the present invention includes a deflection correction platform 110 , a three-axis driving mechanism 120 , a first vision module 130 and a second vision module 140 .

[0032] The deflection correction table 110 can carry the workpiece to be tested. The workpiece to be tested in this embodiment refers to the pole piece 20. The pole piece 20 sampled can be first transferred from the conveyor line 200 to the deflection correction table 110. Specifically, in this embodiment, the burr detection device 100 also includes a transfer mechanism 150, and the transfer mechanism 150 can transfer the pole piece 20 from the conveyor line 200 to the deflection correction table 110. Moreover, after the burr detection is completed, the transfer mechanism 150 can also transfer the detected pole piece 20 from the deflection correction table 110 to a waste box (not shown). The transfer mechanism 150 can adopt a multi-axis manipulator, and a suction cup can be installed at the end of the multi-axis manipulator to absorb the pole piece 20.

[0033] The bearing surface of the deflection correction platform 110 is set to be a contoured surface of the pole piece 20, so that the pole piece 20 can be provided with better support, so that the pole lug of the pole piece 20 can also fit on the deflection correction platform 110 and be effectively unfolded. The deflection correction platform 110 can expose the edge of the pole piece 20 carried. Specifically, the size of the bearing surface of the deflection correction platform 110 can be set to be slightly smaller than the size of the pole piece 20, so that the edge of the pole piece 20 is suspended and exposed. In this way, the edge of the pole piece 20 can be prevented from being blocked, which is conducive to clearly obtaining the image information of the edge of the pole piece 20 during the burr detection process.

[0034] The three-axis driving mechanism 120 can drive the deflection correction platform 110 to translate along the first direction and the second direction, and rotate around an axis extending along the third direction. The deflection correction platform 110 is installed at the driving end of the three-axis driving mechanism 120, and can translate and rotate on the three-axis driving mechanism 120, thereby driving the pole piece 20 carried thereon to translate and rotate. Preferably, the first direction is perpendicular to the second direction, and the third direction is perpendicular to the first direction and the second direction. Figure 2 As shown, the first direction refers to the left-right direction, the second direction refers to the direction perpendicular to the plane of the drawing, and the third direction refers to the vertical direction.

[0035] The first visual module 130 can obtain the position information of the workpiece to be measured carried on the deflection correction platform 110 for the three-axis driving mechanism 120 to perform the deflection correction operation. The first visual module 130 can use a CCD camera, which can obtain the image information of the pole piece 20 on the deflection correction platform 110 by taking pictures, and judge whether the position of the pole piece 20 is offset by comparing it with the image information used as a reference standard. When the position of the pole piece 20 is offset, the three-axis driving mechanism 120 can drive the deflection correction platform 110 to translate and / or rotate according to the specific offset, so as to correct the position of the pole piece 20 carried on the deflection correction platform 110.

[0036] Please refer again Figure 1 In this embodiment, the burr detection device 100 further includes a supporting mechanism 160 , and the supporting mechanism 160 includes a driving member 161 and a diffuse reflection plate 162 . The diffuse reflection plate 162 can be moved to below the edge of the workpiece to be detected under the drive of the driving member 161 .

[0037] The driving member 161 can be a cylinder, and the diffuse reflection plate 162 can be installed on the piston rod of the driving member 161. Before the first visual module 130 takes a picture of the pole piece 20, the diffuse reflection plate 162 is first moved to the bottom of the edge of the pole piece 20 under the drive of the driving member 161. The diffuse reflection plate 162 may or may not be in contact with the edge of the pole piece 20. When the first visual module 130 takes a picture, the front light source is turned on and irradiated on the diffuse reflection plate 162 on the surface and below the pole piece 20. At this time, the edge of the pole piece 20 appears black, and the diffuse reflection plate 162 as the background appears white under the light, thereby simulating backlight under the pole piece 20. By simulating the backlight as described above, the boundary of the pole piece 20 can be more clearly presented, which helps to improve the accuracy of the correction.

[0038] After the deflection correction is completed, the diffuse reflection plate 162 can be moved out from under the edge of the pole piece 20 under the drive of the driving member 161, or it can continue to remain under the edge of the pole piece 20 until the burr detection is completed.

[0039] Furthermore, in this embodiment, a U-shaped groove is provided on the surface of the deflection correction platform 110, and the edge of the workpiece to be measured is exposed in the U-shaped groove, and the diffuse reflection plate 162 can be inserted into the U-shaped groove and moved below the edge of the workpiece to be measured under the drive of the driving member 161. Specifically, the diffuse reflection plate 162 is also U-shaped, so that it is convenient to insert it from the opening side of the U-shaped groove.

[0040] The second visual module 140 can obtain image information of the edge of the workpiece to be tested carried on the deflection correction table 110 for burr detection. After obtaining the image information of the edge of the pole piece 20, by analyzing the image information, it can be determined whether the burrs on the edge of the pole piece 20 exceed the standard. Moreover, since the burr detection is performed directly on the deflection correction table 110 after the deflection correction is completed, one handling operation can be reduced compared to the traditional method, thereby avoiding the loss of positioning accuracy of the pole piece 20 and avoiding unreliable burr detection results due to the falling of part of the burrs on the edge of the pole piece 20 during the handling process.

[0041] Furthermore, the three-axis driving mechanism 120 can drive the correction platform 110 to translate and rotate, and make the edge of the workpiece to be measured pass through the viewing angle range of the second vision module 140 in sequence. The second vision module 140 can collect image information of the edge of the workpiece to be measured passing through the viewing angle range.

[0042] The three-axis driving mechanism 120 is usually connected to the host computer (not shown) in communication, and can drive the correction platform 110 to move by three-axis control interpolation under the control of the host computer. In this way, it can be ensured that all edges of the pole piece 20 can successively enter the viewing angle range of the second visual module 140 and are all at a better shooting distance.

[0043] For example, in the initial state, the edge 1 of the pole piece 20 is within the viewing angle of the second visual module 140, so the second visual module 140 can capture the image information of the edge 1 of the pole piece 20; then, the three-axis driving mechanism 120 drives the correction platform 110 to rotate, and drives the correction platform 110 to translate in the first direction and the second direction, so that the edge 2 of the pole piece 20 can enter the viewing angle of the second visual module 140. At this time, the second visual module 140 can capture the image information of the edge 2 of the pole piece 20. By analogy, as the three-axis driving mechanism 120 drives the correction platform 110 to rotate and translate, the second visual module 140 will also capture the image information of the edge 3 and edge 4 of the pole piece 20 in sequence.

[0044] It can be seen that during the operation of the second visual module 140, the three-axis driving mechanism 120 drives the correction platform 110 to translate and rotate in the second visual module 140, which can ensure that all edges of the pole piece 20 can successively enter the viewing angle range of the second visual module 140, so the second visual module 140 can obtain image information of all edges of the pole piece 20. By analyzing the image information of all edges, full-area burr detection can be achieved for the pole piece 20. Therefore, the burr detection device 100 can replace the manual method to perform random inspections on the pole piece 20, thereby improving the efficiency of burr detection.

[0045] In this embodiment, the bearing surface of the deflection correction table 110 is set as a light-absorbing surface. Specifically, the bearing surface of the deflection correction table 110 can be set to black or other dark colors to reduce reflection. The bearing surface can be made into a light-absorbing surface by covering the surface of the deflection correction table 110 with a light-absorbing coating, or the deflection correction table 110 can be formed of a light-absorbing material as a whole, thereby ensuring that the bearing surface of the deflection correction table 110 can absorb light. Since the bearing surface of the deflection correction table 110 reflects less light, it can significantly reduce light pollution during burr detection, which is conducive to improving the accuracy of burr detection.

[0046] Please refer again Figure 2 In this embodiment, the second vision module 140 includes a horizontal camera 141 and a vertical camera 142. Both the horizontal camera 141 and the vertical camera 142 can collect image information of the edge of the workpiece to be measured passing through the viewing angle range, and the optical axis of the horizontal camera 141 is parallel to the supporting surface of the deflection correction platform 110, and the optical axis of the vertical camera 142 is perpendicular to the supporting surface of the deflection correction platform 110.

[0047] The horizontal camera 141 and the vertical camera 142 can be cameras of the same structure, and both can be equipped with a high-precision telecentric lens and a high-brightness light source, and can simultaneously shoot the edge of the pole piece 20. The horizontal camera 141 can shoot the pole piece 20 from the side, and the vertical camera 142 can shoot the pole piece 20 from top to bottom, and the shooting angles of the two are different. By superimposing and combining the image information of the edge of the pole piece 20 taken from two angles by the horizontal camera 141 and the vertical camera 142, the distribution of the burrs on the edge of the pole piece 20 can be more accurately reflected, thereby further improving the accuracy of burr detection.

[0048] Furthermore, in this embodiment, the horizontal camera 141 and the vertical camera 142 can collect image information during the movement of the workpiece to be measured. The horizontal camera 141 and the vertical camera 142 can use a 2.5μm pixel camera, and with a 1.5 times high-definition telecentricity, the resolution can reach 1.66μm, and a moving object can be clearly photographed. In this way, the horizontal camera 141 and the vertical camera 142 can complete the photography of the edge of the pole piece 20 without waiting for the deflection correction platform 110 to be stationary, so the three-axis drive mechanism 120 can continuously drive the deflection correction platform 110 to translate and rotate, thereby further improving the efficiency of burr detection.

[0049] Preferably, both the horizontal camera 141 and the vertical camera 142 are color cameras. In this way, the second visual module 140 has a stronger recognition capability for both the negative copper foil and the positive aluminum foil in the electrode sheet 20, so that the burr detection device 100 can be used for burr detection of both positive and negative electrode sheets.

[0050] In addition, in this embodiment, the first vision module 130 and the second vision module 140 are respectively disposed at a deflection correction station and a detection station spaced apart from each other, and the deflection correction platform 110 can move between the deflection correction station and the detection station under the drive of the three-axis driving mechanism 120 .

[0051] The deflection correction station and the detection station can be arranged at intervals along the first direction or the second direction. When the pole piece 20 to be sampled is transferred to the deflection correction station 110, the first visual module 130 can first take a photo and obtain the position information at the deflection correction station, and then the three-axis driving mechanism 120 completes the deflection correction operation according to the position information. After the deflection correction is completed, the deflection correction station 110 is driven by the three-axis driving mechanism 120 to move to the detection station, and the second visual module 140 performs burr detection at the detection station. In this way, the deflection correction and burr detection of the pole piece 20 can be performed at two different stations respectively, so as to avoid mutual interference between the first visual module 130 and the second visual module 140.

[0052] It should be noted that, in other embodiments, the deflection correction platform 110 may also stay in one station, and both the first vision module 130 and the second vision module 140 may be movable. When performing deflection correction, the first vision module 130 moves to the station where the deflection correction platform 110 is located, and when performing burr detection, the second vision module 140 moves to the station where the deflection correction platform 110 is located.

[0053] Furthermore, in this embodiment, the deflection correction table 110 can be moved to the film placement position under the drive of the three-axis driving mechanism 120, and the transfer mechanism 150 can transfer the workpiece to be measured from the conveyor line 200 to the deflection correction table 110 located at the film placement position, and can transfer the workpiece to be measured from the deflection correction table 110 located at the film placement position to the waste box.

[0054] The film placement position is different from the deflection correction station and the detection station, and is closer to the conveyor line 200 than the deflection correction station and the detection station. Before the detection begins, the deflection correction table 110 can be first moved to the film placement position under the drive of the three-axis drive mechanism 120; after the transfer mechanism 150 transfers the pole piece 20 from the conveyor line 200 to the deflection correction table 110, the deflection correction table 110 is driven by the three-axis drive mechanism 120 to move to the deflection correction station to correct the pole piece 20; after the deflection correction is completed, the deflection correction table 110 is driven by the three-axis drive mechanism 120 to move to the detection station to perform burr detection on the pole piece 20; after the burr detection is completed, the deflection correction table 110 is driven by the three-axis drive mechanism 120 to return to the film placement position, and then the transfer mechanism 150 transfers the detected pole piece 20 to the waste box; the empty deflection correction table 110 can stay at the film placement position to prepare for random inspection of the next pole piece 20.

[0055] By setting the sheet placement position, the travel required by the transfer mechanism 150 to transfer the electrode sheet 20 can be shortened. In addition, the transfer mechanism 150 can be prevented from interfering with the first visual module 130 and the second visual module 140 during the process of taking the square sheet.

[0056] When the burr detection device 100 and the film-making equipment 10 are performing burr detection on the pole piece 20, the pole piece 20 is first transferred to the deflection correction table 110. The first visual module 130 obtains the position information of the pole piece 20, and the three-axis driving mechanism 120 can drive the deflection correction table 110 to correct the pole piece 20 according to the above position information. After the deflection correction is completed, the second visual module 140 obtains the image information of the edge of the pole piece 20. By analyzing the collected image information, it can be determined whether the burrs of the pole piece 20 exceed the standard. Moreover, during the operation of the second visual module 140, the three-axis driving mechanism 120 drives the deflection correction table 110 to translate and rotate in the second visual module 140, which can ensure that all edges of the pole piece 20 can successively enter the viewing angle range of the second visual module 140, so the second visual module 140 can obtain the image information of all edges of the pole piece 20. Therefore, the burr detection device 100 and the film-making equipment 10 can perform full-area burr detection on the pole piece 20.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0058] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A burr detection device, characterized in that: include: The deflection correction table can carry the workpiece to be tested; A three-axis driving mechanism capable of driving the deflection correction platform to translate along a first direction and a second direction, and to rotate around an axis extending along a third direction; A first visual module, capable of acquiring position information of a workpiece to be measured carried on the deflection correction table so as to provide the three-axis driving mechanism with a deflection correction operation; and The second visual module, the three-axis driving mechanism can drive the correction platform to translate and rotate, and make the edges of the workpiece to be measured pass through the viewing angle range of the second visual module in sequence, and the second visual module can collect image information of the edge of the workpiece to be measured passing through the viewing angle range for burr detection.

2. The burr detection device according to claim 1, characterized in that: The bearing surface of the deflection correction platform is configured as a light absorbing surface.

3. The burr detection device according to claim 1, characterized in that: The deflection correction platform can expose the edge of the workpiece to be measured. The burr detection device also includes a supporting mechanism, which includes a driving member and a diffuse reflection plate. The diffuse reflection plate can be moved below the edge of the workpiece to be measured under the drive of the driving member.

4. The burr detection device according to claim 3, characterized in that: A U-shaped groove is provided on the surface of the deflection correction platform, and the edge of the workpiece to be measured is exposed in the U-shaped groove. The diffuse reflection plate can be inserted into the U-shaped groove and moved under the drive of the driving member to move below the edge of the workpiece to be measured.

5. The burr detection device according to claim 1, characterized in that: The first vision module and the second vision module are respectively arranged at a deviation correction station and a detection station spaced apart from each other, and the deviation correction platform can move between the deviation correction station and the detection station under the drive of the three-axis driving mechanism.

6. The burr detection device according to claim 1, characterized in that: The second vision module includes a horizontal camera and a vertical camera, both of which can collect image information of the edge of the workpiece to be measured passing through the viewing angle range, and the optical axis of the horizontal camera is parallel to the bearing surface of the deflection correction platform, and the optical axis of the vertical camera is perpendicular to the bearing surface of the deflection correction platform.

7. The burr detection device according to claim 6, characterized in that: The horizontal camera and the vertical camera can collect image information during the movement of the workpiece to be measured.

8. The burr detection device according to claim 1, characterized in that: It also includes a transfer mechanism, which can transfer the workpiece to be measured from the conveyor line to the deflection correction platform, and can transfer the workpiece to be measured from the deflection correction platform to a waste box.

9. The burr detection device according to claim 8, characterized in that: The deflection correction platform can be moved to the film placement position under the drive of the three-axis driving mechanism, and the transfer mechanism can transfer the workpiece to be measured from the conveyor line to the deflection correction platform located at the film placement position, and can transfer the workpiece to be measured from the deflection correction platform located at the film placement position to the waste box.

10. A film-making device, characterized in that: It comprises a burr detection device and a conveyor line as described in any one of claims 1 to 9 above, wherein the conveyor line is used to convey the electrode pieces obtained by slicing, and the electrode pieces conveyed by the conveyor line can be transferred to the deflection correction table.

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