Pole piece burr detection equipment

Abstract

The utility model discloses pole piece burr detection equipment, which is applied to the technical field of lithium battery manufacturing, and is characterized in that the pole piece burr detection equipment comprises a working table and a double-shaft motor arranged on the working table, two output ends of the double-shaft motor are coaxially connected with rotating shafts, the end parts of the two rotating shafts are respectively connected with a first bevel gear, and the first bevel gear is connected with a second bevel gear; the two first bevel gears are in meshed connection with second bevel gears respectively, the two second bevel gears are in penetrating connection with transmission lead screws respectively, the transmission lead screws are in threaded connection with lead screw nuts, detection pieces are arranged on the lead screw nuts, and a supporting frame allowing the transmission lead screws to rotate is installed on the workbench. A rotating assembly for driving the lithium battery pole piece to rotate is arranged between the two transmission screw rods on the workbench; the method has the technical effect that the burr detection of the lithium battery pole piece is conveniently and quickly realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a device for detecting burrs of a pole piece. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. Lithium batteries are usually composed of positive and negative electrodes. When producing the electrodes, the battery slurry is usually evenly coated on the positive and negative electrode collectors. After the electrodes are evaporated and dried, they need to be cut to the appropriate size using a cutting scissors. After cutting, the unevenness of the blade and the shaking during the cutting process will cause burrs on the edges of the electrodes. Generally, when the burrs are too long or too many, when the lithium battery electrodes with burrs are used in the battery, it is easy to cause a short circuit between the positive and negative electrodes. In addition, it is also easy for the sealing film to not fit tightly to the outside of the electrode during the manufacturing process of the lithium battery.

[0003] In the prior art, the burrs on lithium battery pole pieces are usually detected by manually observing the edge of the pole piece with a microscope. This detection method is inefficient and prone to errors. Utility Model Content

[0004] The utility model aims to provide a device for detecting burrs on pole pieces, which has the advantages of conveniently and quickly realizing burr detection on pole pieces of lithium batteries.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a pole piece burr detection device, comprising a workbench and a dual-axis motor installed on the workbench, the two output ends of the dual-axis motor are coaxially connected with a rotating shaft, the ends of the two rotating shafts are respectively connected with a first bevel gear, the two first bevel gears are respectively meshed and connected with a second bevel gear, the two second bevel gears are respectively penetrated by a transmission screw, the transmission screw is threaded with a screw nut, the screw nut is provided with a detection piece, and a support frame for rotating the transmission screw is installed on the workbench, and a rotating component for driving the lithium battery pole piece to rotate is provided on the workbench between the two transmission screws.

[0006] Through the above technical scheme, when it is necessary to detect the lithium battery pole piece, the battery pole piece is placed on the rotating assembly, and the dual-axis motor is driven to drive the two rotating shafts to rotate respectively, and the two rotating shafts respectively drive the two first bevel gears to rotate, and the first bevel gear drives the second bevel gear to rotate, and then the second bevel gear drives the transmission screw to rotate, the transmission screw drives the screw nut to move, and the screw nut drives the detection piece to move, and the detection piece detects burrs on the edges of the pole piece in both width directions. When the detection is completed, the rotating assembly is driven to drive the pole piece to rotate and reverse. At this time, the dual-axis motor is driven to reverse, and then the dual-axis motor drives the rotating shaft to reverse, the rotating shaft drives the first bevel gear to reverse, the first bevel gear drives the second bevel gear to reverse, and the second bevel gear drives the transmission screw to reverse, so that the screw nut drives the detection piece to move in the opposite direction, and then the burrs on the edges of the pole piece in both length directions are detected, and the burr detection of the lithium battery pole piece is convenient and quick.

[0007] The utility model is further configured as follows: the rotating assembly comprises a motor mounted on a workbench, a rotating rod is coaxially connected to the output end of the motor, and the end of the rotating rod is connected to a placing table.

[0008] The utility model is further configured as follows: a plurality of vacuum suction cups are arranged in an array on the placement table.

[0009] The utility model is further configured as follows: the detection component is specifically a visual industrial camera.

[0010] The utility model is further configured as follows: a limiting groove is provided on the workbench just below the transmission screw rod, and a limiting plate which slides in the limiting groove is connected to the screw rod nut.

[0011] The utility model is further configured as follows: a heat dissipation hole is provided on the workbench below the dual-axis motor, and a filter is installed in the heat dissipation hole.

[0012] To summarize, when it is necessary to inspect the lithium battery pole piece, the battery pole piece is placed on the rotating assembly, and the dual-axis motor is driven to drive the two rotating shafts to rotate respectively, and the two rotating shafts respectively drive the two first bevel gears to rotate, the first bevel gear drives the second bevel gear to rotate, and then the second bevel gear drives the transmission screw to rotate, the transmission screw drives the screw nut to move, the screw nut drives the detection piece to move, and the detection piece detects burrs on the edges of the pole piece in both width directions. When the detection is completed, the rotating assembly is driven to drive the pole piece to rotate and reverse. At this time, the dual-axis motor is driven to reverse, and then the dual-axis motor drives the rotating shaft to reverse, the rotating shaft drives the first bevel gear to reverse, the first bevel gear drives the second bevel gear to reverse, and the second bevel gear drives the transmission screw to reverse, so that the screw nut drives the detection piece to move in the opposite direction, and then the burrs on the edges of the pole piece in both length directions are detected, so that the burr detection of the lithium battery pole piece can be realized conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0014] Figure 2 is a schematic diagram of the overall structure of the rotating assembly of this embodiment;

[0015] Figure 3 This embodiment is used to illustrate the connection between the limiting plate and the limiting groove.

[0016] Figure numerals: 1. workbench; 2. dual-axis motor; 3. rotating shaft; 4. first bevel gear; 5. second bevel gear; 6. transmission screw; 7. screw nut; 8. support frame; 9. motor; 10. rotating rod; 11. placement table; 12. vacuum suction cup; 13. visual industrial camera; 14. limit plate; 15. limit groove; 16. heat dissipation hole; 17. filter. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Example: Refer to Figure 1-3 As shown, a pole piece burr detection device comprises a workbench 1 and a double-axis motor 2 installed on the workbench 1, two output ends of the double-axis motor 2 are coaxially connected with a rotating shaft 3, the ends of the two rotating shafts 3 are respectively connected with a first bevel gear 4, the two first bevel gears 4 are respectively meshed with a second bevel gear 5, the two second bevel gears 5 are respectively penetrated with a transmission screw 6, the transmission screw 6 is threadedly connected with a screw nut 7, the screw nut 7 is provided with a detection member, the detection member is specifically a visual industrial camera 13, and a support frame 8 for rotating the transmission screw 6 is installed on the workbench 1, and a rotating assembly for driving the lithium battery pole piece to rotate is provided between the two transmission screws 6 on the workbench 1, and the rotating assembly comprises a motor 9 installed on the workbench 1, a rotating rod 10 is coaxially connected to the output end of the motor 9, and a placement table 11 is connected to the end of the rotating rod 10;

[0019] Specifically, the battery pole piece is placed on the placement table 11, and the dual-axis motor 2 is driven to respectively drive the two rotating shafts 3 to rotate, and the two rotating shafts 3 respectively drive the two first bevel gears 4 to rotate, and the first bevel gear 4 drives the second bevel gear 5 to rotate, and then the second bevel gear 5 drives the transmission screw 6 to rotate, and the transmission screw 6 drives the screw nut 7 to move, and the screw nut 7 drives the visual industrial camera 13 to move, and the detection part detects the burrs on the edges of the two width directions of the pole piece. When the detection is completed, the driving motor 9 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the placement table 11 to rotate 90°, and then drives the pole piece to rotate and reverse. At this time, the dual-axis motor 2 is driven to reverse, and then the dual-axis motor 2 drives the rotating shaft 3 to reverse, the rotating shaft 3 drives the first bevel gear 4 to reverse, the first bevel gear 4 drives the second bevel gear 5 to reverse, and the second bevel gear 5 drives the transmission screw 6 to reverse, so that the screw nut 7 drives the visual industrial camera 13 to move in the opposite direction, and then the burrs on the edges of the two length directions of the pole piece are detected, and the burr detection of the lithium battery pole piece is convenient and quick.

[0020] Furthermore, a plurality of vacuum suction cups 12 are arranged in an array on the placement table 11, and the vacuum suction cups 12 fix the lithium battery pole piece more firmly on the placement table 11, so as to facilitate burr detection.

[0021] Furthermore, a limit groove 15 is provided on the workbench 1 just below the transmission screw 6, and a limit plate 14 is connected to the screw nut 7 and slides in the limit groove 15. The limit plate 14 drives the screw nut 7 to slide in a direction along the limit groove 15, thereby driving the visual industrial camera 13 to move more smoothly. A heat dissipation hole 16 is provided on the workbench 1 below the dual-axis motor 2, and a filter 17 is installed in the heat dissipation hole 16. The dual-axis motor 2 will generate heat when working for a long time. The heat accumulated at the bottom of the dual-axis motor 2 can be well dissipated through the heat dissipation hole 16.

[0022] Operation steps: Place the battery pole piece on the placement table 11, and the vacuum suction cup 12 fixes the lithium battery pole piece more firmly on the placement table 11. The dynamic dual-axis motor 2 drives the two shafts 3 to rotate respectively, and the two shafts 3 drive the two first bevel gears 4 to rotate respectively. The first bevel gear 4 drives the second bevel gear 5 to rotate, and then the second bevel gear 5 drives the transmission screw 6 to rotate, and the transmission screw 6 drives the screw nut 7 to move, and the screw nut 7 drives the visual industrial camera 13 to move. The detection part detects burrs on the edges of the pole piece in both width directions. When the detection is completed, The driving motor 9 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the placement table 11 to rotate 90°, thereby driving the pole piece to rotate and reverse. At this time, the dual-axis motor 2 is driven to reverse, and then the dual-axis motor 2 drives the rotating shaft 3 to reverse, the rotating shaft 3 drives the first bevel gear 4 to reverse, the first bevel gear 4 drives the second bevel gear 5 to reverse, and the second bevel gear 5 drives the transmission screw 6 to reverse, so that the screw nut 7 drives the visual industrial camera 13 to move in the opposite direction, thereby detecting burrs on the edges of the pole piece in both length directions, and conveniently and quickly realizing burr detection on lithium battery pole pieces.

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for detecting burrs on a pole piece, characterized in that: The invention comprises a workbench (1) and a double-axis motor (2) mounted on the workbench (1), wherein two output ends of the double-axis motor (2) are coaxially connected to a rotating shaft (3), the ends of the two rotating shafts (3) are respectively connected to a first bevel gear (4), the two first bevel gears (4) are respectively meshed with a second bevel gear (5), the two second bevel gears (5) are respectively penetrated by a transmission screw (6), the transmission screw (6) is threadedly connected to a screw nut (7), the screw nut (7) is provided with a detection part, and a support frame (8) for rotating the transmission screw (6) is installed on the workbench (1), and a rotating component for driving the lithium battery pole piece to rotate is provided between the two transmission screws (6) on the workbench (1).

2. The device for detecting pole piece burrs according to claim 1, characterized in that: The rotating assembly comprises a motor (9) mounted on a workbench (1); a rotating rod (10) is coaxially connected to the output end of the motor (9); and the end of the rotating rod (10) is connected to a placement table (11).

3. The device for detecting burrs of a pole piece according to claim 2, characterized in that: A plurality of vacuum suction cups (12) are arranged in an array on the placement table (11).

4. The device for detecting pole piece burrs according to claim 1, characterized in that: The detection component is specifically a visual industrial camera (13).

5. The device for detecting pole piece burrs according to claim 1, characterized in that: A limiting groove (15) is provided on the workbench (1) directly below the transmission screw (6), and a limiting plate (14) is connected to the screw nut (7) and slides in the limiting groove (15).

6. The device for detecting pole piece burrs according to claim 1, characterized in that: A heat dissipation hole (16) is provided on the workbench (1) below the dual-axis motor (2), and a filter screen (17) is installed in the heat dissipation hole (16).

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