Burr detection apparatus and sheet preparation device

Abstract

A burr detection apparatus (100) and a sheet preparation device (10). When burr detection is performed on an electrode sheet (20), the electrode sheet (20) is first transferred to a deviation correction platform (110), a first vision module (130) acquires position information of the electrode sheet (20), and a three-axis driving mechanism (120) drives, on the basis of the position information, the deviation correction platform (110) to complete deviation correction of the electrode sheet (20). After the deviation correction is completed, a second vision module (140) acquires image information of an edge of the electrode sheet (20). The collected image information is analyzed, so as to determine whether burrs on the electrode sheet (20) exceed a standard. During the operation of the second vision module (140), the deviation correction platform (110) is driven by the three-axis driving mechanism (120) to translate and rotate in the second vision module (140), so as to ensure that all edges of the electrode sheet (20) can successively enter an angle-of-view range of the second vision module (140), thereby allowing the second vision module (140) to obtain image information of all the edges of the electrode sheet (20). The burr detection apparatus (100) and the sheet preparation device (10) can perform full-area burr detection on the electrode sheet (20).

Description

Burr detection device and tablet making equipment TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery equipment, in particular to a burr detection device and tablet making equipment. BACKGROUND

[0002] The edge of the pole piece required by the lamination process may generate burrs, and the burrs may pierce the diaphragm, thereby causing the positive and negative poles to contact and causing a short circuit. In order to improve the product safety of lithium batteries, the burrs of the pole piece are periodically sampled and inspected in the actual production process. The pole piece will form multiple edges and corners between the edges after tablet making. The traditional visual inspection scheme is limited by factors such as depth of field and resolution, and cannot detect the entire area of the pole piece. Therefore, the current way of detecting the burrs of the entire area of the pole piece is still manual sampling and inspection. However, with the popularization of the lamination process, the demand for burr detection after tablet making increases, and the manual sampling and inspection method has gradually failed to meet the demand.

[0003] CONTENT

[0004] Therefore, it is necessary to provide a burr detection device and tablet making equipment capable of detecting the burrs of the entire area of the pole piece in view of the above problems.

[0005] A burr detection device comprises:

[0006] A deviation correction table capable of carrying a workpiece to be measured;

[0007] A three-axis driving mechanism capable of driving the deviation correction table to translate in a first direction and a second direction and rotate about an axis extending in a third direction;

[0008] A first vision module capable of acquiring position information of the workpiece to be measured carried on the deviation correction table for the three-axis driving mechanism to perform a deviation correction operation; and

[0009] A second vision module, the three-axis driving mechanism capable of driving the deviation correction table to translate and rotate, and the edge of the workpiece to be measured sequentially passing through the angle range of the second vision module, the second vision module capable of collecting image information of the edge of the workpiece to be measured passing through the angle range for burr detection.

[0010] In one of the embodiments, the carrying surface of the deviation correction table is provided as a light-absorbing surface.

[0011] In one of the embodiments, a light-absorbing coating is provided on the surface of the deviation correction table to make the carrying surface of the deviation correction table a light-absorbing surface.

[0012] In one of the embodiments, the deviation correction table is formed of a light-absorbing material to make the carrying surface of the deviation correction table a light-absorbing surface.

[0013] In one of the embodiments, the edge of the workpiece carried by the deviation rectifying platform is exposed.

[0014] In one of the embodiments, the burr detecting device further comprises a supporting mechanism, which comprises a driving member and a diffuse reflection plate, the diffuse reflection plate is capable of moving to the position below the edge of the workpiece under the driving of the driving member.

[0015] In one of the embodiments, the surface of the deviation rectifying platform is provided with a U-shaped groove, the edge of the workpiece is exposed in the U-shaped groove, and the diffuse reflection plate is capable of inserting into the U-shaped groove to move to the position below the edge of the workpiece under the driving of the driving member.

[0016] In one of the embodiments, the diffuse reflection plate is in U-shape.

[0017] In one of the embodiments, the first vision module and the second vision module are respectively arranged in the deviation rectifying station and the detecting station which are spaced apart from each other, and the deviation rectifying platform is capable of moving between the deviation rectifying station and the detecting station under the driving of the three-axis driving mechanism.

[0018] In one of the embodiments, the deviation rectifying platform is capable of moving to a sheet placing position under the driving of the three-axis driving mechanism, and the sheet placing position is different from the deviation rectifying station and the detecting station.

[0019] In one of the embodiments, the deviation rectifying platform is arranged in a station, and the first vision module and the second vision module are both capable of moving to the station where the deviation rectifying platform is arranged.

[0020] In one of the embodiments, the second vision module comprises a horizontal camera and a vertical camera, the horizontal camera and the vertical camera are both capable of collecting image information of the edge of the workpiece passing through the visual angle range, the optical axis of the horizontal camera is parallel to the carrying surface of the deviation rectifying platform, and the optical axis of the vertical camera is perpendicular to the carrying surface of the deviation rectifying platform.

[0021] In one of the embodiments, the horizontal camera and the vertical camera are capable of collecting image information in the process of moving the workpiece.

[0022] In one of the embodiments, a workpiece transferring mechanism is further included, which is capable of transferring the workpiece from the conveying line to the deviation rectifying platform and transferring the workpiece from the deviation rectifying platform to the waste box.

[0023] In one of the embodiments, the deviation rectifying platform is capable of moving to a sheet placing position under the driving of the three-axis driving mechanism, the workpiece transferring mechanism is capable of transferring the workpiece from the conveying line to the deviation rectifying platform located in the sheet placing position and transferring the workpiece from the deviation rectifying platform located in the sheet placing position to the waste box.

[0024] A tablet manufacturing device comprises the burr detection device and the conveying line according to any one of the preferred embodiments described above, the conveying line is used to convey the tablet obtained by slicing, and the tablet conveyed by the conveying line can be transferred to the deviation rectifying table.

[0025] The burr detection device and the tablet manufacturing device described above, when detecting the burr of the tablet, first transfer the tablet to the deviation rectifying table. The first vision module obtains the position information of the tablet, and the three-axis driving mechanism can drive the deviation rectifying table to complete the deviation rectification of the tablet according to the position information. After the deviation rectification is completed, the second vision module obtains the image information of the edge of the tablet. By analyzing the collected image information, it can be judged whether the burr of the tablet is excessive. Moreover, during the working process of the second vision module, the three-axis driving mechanism drives the deviation rectifying table to translate and rotate in the second vision module, which can ensure that all edges of the tablet can enter the visual range of the second vision module in turn, so that the second vision module can obtain the image information of all edges of the tablet. Therefore, the burr detection device and the tablet manufacturing device described above can detect the burr of the tablet in the whole area. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Fig. 1 is a schematic diagram of part of the structure of a tablet manufacturing device in an embodiment of the present application;

[0028] Fig. 2 is a front view of a burr detection device in the tablet manufacturing device shown in Fig. 1. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] It is to be understood that when an element as a preamble is referred to as being "on" or "disposed on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "up", "down", "left", "right", and the like as well as the like are used for explanation only and not to limit the embodiments.

[0035] Referring to FIG. 1, the application provides a piece-making device 10 and a burr detection device 100. The piece-making device 10 includes the burr detection device 100 and a conveying line 200.

[0036] The piece-making device 10 can cut the piece material into pieces 20 in multiple ways such as laser cutting, hardware cutter cutting and hardware mold cutting, etc. The pieces 20 obtained include tabs. The conveying line 200 is used to convey the pieces 20 obtained and can convey the pieces 20 to a laminated core or other subsequent workstations. When it is necessary to conduct sampling inspection on the pieces 20, the pieces 20 conveyed by the conveying line 200 can be transferred to the burr detection device 100, and the burr detection device 100 can automatically detect whether the edge burrs of the pieces 20 are out of tolerance.

[0037] It is to be noted that the burr detection device 100 described above is not limited to detecting burrs of the pieces 20, and the burr detection device 100 can also be applied to other fields such as liquid crystal display and metal processing to detect burrs of display screens, metal plates and other workpieces to be detected.

[0038] Referring to FIG. 2, the burr detection device 100 in an embodiment of the application includes a deviation rectifying table 110, a three-axis driving mechanism 120, a first vision module 130 and a second vision module 140.

[0039] The deviation rectifying table 110 can carry a workpiece to be detected. In the embodiment, the workpiece to be detected refers to the pieces 20. The pieces 20 sampled can be transferred from the conveying line 200 to the deviation rectifying table 110. Specifically, in the embodiment, the burr detection device 100 further includes a transfer mechanism 150, which can transfer the pieces 20 from the conveying line 200 to the deviation rectifying table 110. Moreover, after the burr detection is completed, the transfer mechanism 150 can also transfer the detected pieces 20 from the deviation rectifying table 110 to a waste box (not shown in the figure). The transfer mechanism 150 can be a multi-axis robot, and the end of the multi-axis robot can be provided with a suction cup to suck the pieces 20.

[0040] The bearing surface of the deviation rectifying table 110 is arranged as a profiling surface of the pole piece 20, so that better support can be provided to the pole piece 20, and the pole tab of the pole piece 20 can also be attached to the deviation rectifying table 110 and effectively unfolded. The deviation rectifying table 110 can expose the edge of the pole piece 20 carried thereby. Specifically, the size of the bearing surface of the deviation rectifying table 110 can be arranged to be slightly smaller than that 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 avoided from being shielded, and the image information of the edge of the pole piece 20 can be clearly acquired in the burr detection process.

[0041] The three-axis driving mechanism 120 can drive the deviation rectifying table 110 to translate in the first direction and the second direction, and rotate about an axis extending in the third direction. The deviation rectifying table 110 is mounted to the driving end of the three-axis driving mechanism 120, and can translate and rotate with the three-axis driving mechanism 120, so as to drive the pole piece 20 carried thereby 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. As shown in FIG. 2, 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.

[0042] The first vision module 130 can acquire the position information of the workpiece to be detected carried by the deviation rectifying table 110, so as to enable the three-axis driving mechanism 120 to perform deviation rectifying operation. The first vision module 130 can adopt a CCD camera, and can acquire the image information of the pole piece 20 on the deviation rectifying table 110 by photographing, and determine whether the position of the pole piece 20 is deviated by comparing with the image information as a reference standard. When the position of the pole piece 20 is deviated, the three-axis driving mechanism 120 can drive the deviation rectifying table 110 to translate and / or rotate according to the specific deviation amount, so as to correct the position of the pole piece 20 carried by the deviation rectifying table 110.

[0043] Referring back to FIG. 1, in the embodiment, the burr detection device 100 further comprises a supporting mechanism 160, which comprises 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 driving of the driving member 161.

[0044] The driving member 161 can be a cylinder, and the diffuse reflection plate 162 can be mounted on the piston rod of the driving member 161. Before the first vision module 130 takes a photo of the edge of the polar plate 20, the diffuse reflection plate 162 is first moved to below the edge of the polar plate 20 under the driving of the driving member 161. The diffuse reflection plate 162 can be in contact with the edge of the polar plate 20 or not. When the first vision module 130 takes a photo, the front light source is turned on and irradiates on the diffuse reflection plate 162 below the surface of the polar plate 20. At this time, the edge of the polar plate 20 appears black, and the diffuse reflection plate 162 as the background appears white under the light, thereby simulating backlight below the polar plate 20. Through the above-mentioned backlight simulation mode, the boundary of the polar plate 20 can be more obviously presented, thereby helping to improve the correction accuracy.

[0045] After the correction is completed, the diffuse reflection plate 162 can be moved out from below the edge of the polar plate 20 under the driving of the driving member 161, or can continue to be kept below the edge of the polar plate 20 until the burr detection is completed.

[0046] Further, in the embodiment, the surface of the correction table 110 is provided with a U-shaped groove, the edge of the workpiece to be detected is exposed in the U-shaped groove, and the diffuse reflection plate 162 can be inserted into the U-shaped groove to move below the edge of the workpiece to be detected under the driving of the driving member 161. Specifically, the diffuse reflection plate 162 is also U-shaped, thereby facilitating insertion from the opening side of the U-shaped groove.

[0047] The second vision module 140 can acquire image information of the edge of the workpiece to be detected carried on the correction table 110 for burr detection. After the image information of the edge of the polar plate 20 is acquired, whether the burr of the edge of the polar plate 20 is out of standard can be judged by analyzing the image information. Moreover, since the burr detection is directly performed on the correction table 110 after the correction is completed, one-time handling operation can be reduced compared with the traditional mode, thereby avoiding loss of positioning accuracy of the polar plate 20 and avoiding that some burrs of the edge of the polar plate 20 fall off during the handling process to cause unreliable burr detection results.

[0048] Further, the three-axis driving mechanism 120 can drive the correction table 110 to translate and rotate, and make the edge of the workpiece to be detected pass through the visual angle range of the second vision module 140 in sequence, and the second vision module 140 can acquire image information of the edge of the workpiece to be detected passing through the visual angle range.

[0049] The three-axis driving mechanism 120 is usually in communication connection with an upper computer (not shown in the figure), and can drive the correction table 110 to move through three-axis driving interpolation under the control of the upper computer. In this way, all edges of the polar plate 20 can enter the visual angle range of the second vision module 140 in sequence and are all at a better shooting distance.

[0050] For example, in the initial state, the edge 1 of the pole piece 20 is located in the visual angle range 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 deviation rectifying table 110 to rotate and simultaneously drives the deviation rectifying table 110 to translate in the first direction and the second direction, so that the edge 2 of the pole piece 20 enters the visual angle range 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. In this way, as the three-axis driving mechanism 120 drives the deviation rectifying table 110 to rotate and translate, the second visual module 140 will also capture the image information of the edges 3 and 4 of the pole piece 20 in sequence.

[0051] As can be seen, in the working process of the second visual module 140, by driving the deviation rectifying table 110 to translate and rotate in the second visual module 140 through the three-axis driving mechanism 120, it can be ensured that all the edges of the pole piece 20 can enter the visual angle range of the second visual module 140 in sequence, so that the second visual module 140 can obtain the image information of all the edges of the pole piece 20. By analyzing the image information of all the edges, full-area burr detection can be realized for the pole piece 20. Therefore, the burr detection device 100 can replace manual sampling inspection of the pole piece 20, thereby improving the efficiency of burr detection.

[0052] In the embodiment, the bearing surface of the deviation rectifying table 110 is set as a light-absorbing surface. Specifically, the bearing surface of the deviation rectifying table 110 can be set as black or other dark colors, so as to reduce reflection. The bearing surface can be covered with a light-absorbing coating to make the bearing surface a light-absorbing surface, or the deviation rectifying table 110 can be integrally formed of light-absorbing material, so as to ensure that the bearing surface of the deviation rectifying table 110 can absorb light. Since the bearing surface of the deviation rectifying table 110 has less reflection, light pollution during burr detection can be significantly reduced, which is conducive to improving the accuracy of burr detection.

[0053] Referring again to FIG. 2, in the embodiment, the second visual module 140 includes a horizontal camera 141 and a vertical camera 142, both of which can capture the image information of the edge of the workpiece passing through the visual angle range, and the optical axis of the horizontal camera 141 is parallel to the bearing surface of the deviation rectifying table 110, and the optical axis of the vertical camera 142 is perpendicular to the bearing surface of the deviation rectifying table 110.

[0054] The horizontal camera 141 and the vertical camera 142 can be cameras of the same structure, and each can be configured with a high-precision telecentric lens and a high-brightness light source, and can simultaneously capture the edge of the pole piece 20. The horizontal camera 141 can capture the pole piece 20 from the side, and the vertical camera 142 can capture the pole piece 20 from top to bottom, and the two have different angles of view. By superimposing and combining the image information of the edge of the pole piece 20 captured by the horizontal camera 141 and the vertical camera 142 from two angles, the distribution of the edge burr of the pole piece 20 can be more accurately reflected, thereby further improving the accuracy of burr detection.

[0055] Further, in the embodiment, the horizontal camera 141 and the vertical camera 142 can collect image information during movement of the workpiece to be detected. The horizontal camera 141 and the vertical camera 142 can use a 2.5 μm pixel camera, and cooperate with a 1.5 times high-definition telecentric lens, and the resolution capability can reach 1.66 μm, and clear shooting of a moving object can be achieved. In this way, the horizontal camera 141 and the vertical camera 142 can complete shooting of the edge of the pole piece 20 without waiting for the correction table 110 to be stationary, and therefore the three-axis driving mechanism 120 can continuously drive the correction table 110 to translate and rotate, thereby further improving the efficiency of burr detection.

[0056] Preferably, the horizontal camera 141 and the vertical camera 142 each use a color camera. In this way, the second vision module 140 has stronger recognition ability for the negative copper foil and the positive aluminum foil in the pole piece 20, so that the burr detection device 100 can be used for burr detection of the positive pole piece and also for burr detection of the negative pole piece.

[0057] In addition, in the embodiment, the first vision module 130 and the second vision module 140 are respectively arranged at the mutually spaced correction station and detection station, and the correction table 110 can move between the correction station and the detection station under the driving of the three-axis driving mechanism 120.

[0058] The correction station and the detection station can be arranged along the first direction or the second direction, and when the pole piece 20 to be sampled is transferred to the correction table 110, the first vision module 130 can first capture an image and obtain position information at the correction station, and then the three-axis driving mechanism 120 can complete the correction operation according to the position information. After the correction is completed, the correction table 110 moves to the detection station under the driving of the three-axis driving mechanism 120, and the second vision module 140 performs burr detection at the detection station. In this way, the correction and burr detection of the pole piece 20 can be performed at two different stations respectively, thereby avoiding interference between the first vision module 130 and the second vision module 140.

[0059] It is to be noted that in other embodiments, the deviation rectifying station 110 can also stay in one station, and both the first vision module 130 and the second vision module 140 can be movable. When rectifying deviation, the first vision module 130 is moved to the station where the deviation rectifying station 110 is located, and when detecting burrs, the second vision module 140 is moved to the station where the deviation rectifying station 110 is located.

[0060] Further, in the present embodiment, the deviation rectifying station 110 is capable of moving to a sheet placing position under the driving of the three-axis driving mechanism 120, and the transfer mechanism 150 is capable of transferring the workpiece to be detected from the conveying line 200 to the deviation rectifying station 110 located at the sheet placing position, and capable of transferring the workpiece to be detected from the deviation rectifying station 110 located at the sheet placing position to the scrap box.

[0061] The sheet placing position is different from the deviation rectifying station and the detection station, and is closer to the conveying line 200 than the deviation rectifying station and the detection station. Before detection starts, the deviation rectifying station 110 can first move to the sheet placing position under the driving of the three-axis driving mechanism 120; after the transfer mechanism 150 transfers the pole piece 20 from the conveying line 200 to the deviation rectifying station 110, the deviation rectifying station 110 moves to the deviation rectifying station under the driving of the three-axis driving mechanism 120 to rectify the pole piece 20; after rectification is completed, the deviation rectifying station 110 moves to the detection station under the driving of the three-axis driving mechanism 120 to detect burrs of the pole piece 20; after burr detection is completed, the deviation rectifying station 110 moves back to the sheet placing position under the driving of the three-axis driving mechanism 120, and the detected pole piece 20 is transferred to the scrap box by the transfer mechanism 150; the empty deviation rectifying station 110 can stay at the sheet placing position to prepare for the next pole piece 20 to be sampled.

[0062] By setting the sheet placing position, the travel distance required for the transfer mechanism 150 to transfer the pole piece 20 can be shortened. Moreover, it is also possible to avoid interference between the transfer mechanism 150 and the first vision module 130 and the second vision module 140 during the process of taking the pole piece.

[0063] The above-described burr detection device 100 and the tablet manufacturing equipment 10, when performing burr detection on the pole piece 20, first transfer the pole piece 20 to the deviation rectifying table 110. The first vision module 130 acquires the position information of the pole piece 20, and the three-axis driving mechanism 120 can drive the deviation rectifying table 110 to complete deviation rectification on the pole piece 20 according to the position information. After the deviation rectification is completed, the second vision module 140 acquires the image information of the edge of the pole piece 20. By analyzing the collected image information, it can be judged whether the burr of the pole piece 20 is excessive. Moreover, in the working process of the second vision module 140, the deviation rectifying table 110 is driven by the three-axis driving mechanism 120 to translate and rotate in the second vision module 140, which can ensure that all edges of the pole piece 20 can enter the visual angle range of the second vision module 140 in turn, so that the second vision module 140 can obtain the image information of all edges of the pole piece 20. Therefore, the above-described burr detection device 100 and the tablet manufacturing equipment 10 can perform full-area burr detection on the pole piece 20.

[0064] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0065] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A burr detection device, characterized in that: include: The deflection correction table can carry the workpiece to be measured; a three-axis driving mechanism capable of driving the deflection correction platform to translate in a first direction and a second direction, and to rotate about an axis extending in a third direction; A first visual module is capable of acquiring position information of a workpiece to be measured carried on the correction table so as to provide the three-axis driving mechanism with the correction operation; and The second vision module, the three-axis drive 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 vision module in sequence. The second vision 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 2, characterized in that: A light-absorbing coating is provided on the surface of the deflection-correcting platform so that the supporting surface of the deflection-correcting platform becomes a light-absorbing surface.

4. The burr detection device according to claim 2, characterized in that: The deflection correction platform is formed of a light-absorbing material so that the bearing surface of the deflection correction platform is a light-absorbing surface.

5. 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.

6. The burr detection device according to claim 5, characterized in that: The burr detection device further 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.

7. The burr detection device according to claim 6, 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 under the drive of the driving member to move below the edge of the workpiece to be measured.

8. The burr detection device according to claim 7, characterized in that: The diffuse reflection plate is U-shaped.

9. 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 correction station and a detection station spaced apart from each other, and the correction platform can move between the correction station and the detection station under the drive of the three-axis driving mechanism.

10. The burr detection device according to claim 9, characterized in that: The deflection correction platform can be moved to a film placement position under the drive of the three-axis driving mechanism, and the film placement position is different from the deflection correction station and the detection station.

11. The burr detection device according to claim 1, characterized in that: The deflection correction platform is arranged in a workstation, and the first vision module and the second vision module can both be moved to the workstation where the deflection correction platform is located.

12. 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 supporting surface of the deflection correction platform, and the optical axis of the vertical camera is perpendicular to the supporting surface of the deflection correction platform.

13. The burr detection device according to claim 12, characterized in that: The horizontal camera and the vertical camera can collect image information during the movement of the workpiece to be measured.

14. 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.

15. The burr detection device according to claim 14, characterized in that: The deflection correction platform can be moved to the sheet placement position under the drive of the three-axis driving mechanism. The transfer mechanism can transfer the workpiece to be measured from the conveyor line to the deflection correction platform located at the sheet placement position, and can transfer the workpiece to be measured from the deflection correction platform located at the sheet placement position to the waste box.

16. A film-making device, characterized in that: It comprises the burr detection device and the conveyor line as described in any one of claims 1 to 15 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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