Lithium battery pole piece burr detection device
Through the combination of high-speed cameras, large-depth non-standard lenses and high-power light sources, combined with electric push rods and conveying rollers, the problems of insufficient depth of field and cumbersome operation of existing detection devices are solved, and efficient lithium battery pole burr detection is achieved, satisfying the satisfaction of The strict testing needs of battery companies.
Patent Information
- Application Number
- CN202420498814.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing lithium battery pole burr detection device has problems such as insufficient depth of field, insufficient magnification, no measurement function, and cumbersome operation, which cannot meet the strict inspection needs of battery companies and efficient manufacturing goals.
An imaging system that uses a combination of high-speed cameras, large depth of field non-standard lenses and high-power light sources, combined with electric push rods and conveying rollers, realizes high-definition image acquisition and real-time monitoring, adapts to the high-speed movement of the pole sheet, and adjusts the pole sheet guide gland and detection base The spacing of the seats meets the detection of pole pieces of different specifications.
It improves the depth of field and magnification of the detection device, realizes high-contrast image acquisition, simplifies the operation process, meets the strict inspection needs and efficient manufacturing goals of battery companies, and can monitor the burrs on the end surface of the pole in real time.
Smart Images
Figure CN222144882U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery pole piece burr detection, in particular to a lithium battery pole piece burr detection device. Background Art
[0002] When a lithium battery pole piece is produced, the bright metal line outside the aluminum foil line and the part where the bright line is connected to the aluminum foil line are judged as burrs. The offline detection currently commonly used in the field of pole piece burr detection is to use a visual microscope for detection;
[0003] However, the above-mentioned detection device has the pain points of insufficient depth of field, insufficient magnification, no measurement function, and cumbersome operation, which cannot meet the stringent requirements of battery companies in the burr detection link and the problem of efficient manufacturing goals; therefore, we propose a lithium battery pole piece burr detection device to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of the utility model is to provide a lithium battery pole piece burr detection device to solve the problems of the existing detection device proposed in the above background technology, such as insufficient depth of field, insufficient magnification, lack of measurement function, and cumbersome operation, and cannot meet the stringent requirements of the battery company's burr detection link and the efficient manufacturing goals.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery pole piece burr detection device, comprising a light source system;
[0006] Also includes:
[0007] A detection base is installed below the front end of the light source system, a pole piece guide cover is provided at the upper end of the detection base, a high-speed camera is installed inside the detection base, a non-standard lens with a large depth of field is installed at the front end of the high-speed camera, and a high-power light source is installed at the front end of the non-standard lens with a large depth of field;
[0008] The front end and the rear end of the detection base are both provided with conveying rollers, a pole piece is provided between the conveying rollers, and the pole piece extends to between the pole piece guide pressure cover and the detection base.
[0009] Preferably, only a heat dissipation fan is arranged at the upper end of the light source system, and two heat dissipation fans are arranged, and a dustproof net is installed on the outer wall of the heat dissipation fan.
[0010] Preferably, a plurality of heat dissipation louvers are provided on the outer wall of the light source system.
[0011] Preferably, brackets are installed on both sides of the upper end of the light source system, a top plate is installed on the upper end of the brackets, an electric push rod is installed on the upper end of the top plate, the output end of the electric push rod passes through and extends to the lower end of the top plate, and is transmission-connected to the pole piece guide cover.
[0012] Preferably, roller shafts are installed at both ends of the conveying roller, and the conveying roller is transmission-connected to the transmission mechanism via the roller shafts.
[0013] Preferably, a support is installed at the lower end of the light source system, a base plate is installed at the lower end of the support, a mounting plate is provided at the rear end of the base plate, an outer wall of the mounting plate is welded to the base plate via a tripod, and a plurality of mounting through holes are provided inside the mounting plate.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The imaging system of the utility model is composed of a high-speed camera, a non-standard lens with a large depth of field and a high-power light source. Among them, the high-speed camera has a high acquisition frame rate and can meet the image acquisition requirements in a high-speed environment. When the pole piece moves at high speed, the axial position of the burr to be detected will change. Therefore, a non-standard lens with a large depth of field is used to reduce the impact of the change in the axial position of the burr to be detected. The exposure time of a single-frame acquisition image is very short. In order to obtain a high-contrast image result, a lighting light source with a high peak power is used. The existing detection devices solve the pain points of insufficient depth of field, insufficient magnification, lack of measurement function, and cumbersome operation, and cannot meet the stringent requirements of the burr detection link of battery companies and the problem of efficient manufacturing goals.
[0016] The utility model can control the lifting and lowering of the pole piece guide pressure cover by an electric push rod according to different pole piece specifications and thicknesses, so as to adjust the distance between the pole piece guide pressure cover and the detection base, and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the side structure of the detection base of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the detection base of the utility model;
[0020] In the figure: 1. Light source system; 2. Detection base; 3. Pole piece guide pressure cover; 4. Bracket; 5. Top plate; 6. Electric push rod; 7. Cooling fan; 8. Dust screen; 9. Inspection cover; 10. Cooling louver; 11. Support; 12. Bottom plate; 13. Mounting plate; 14. Tripod; 15. Mounting through hole; 16. Conveyor roller; 17. Roller shaft; 18. Pole piece; 19. High-speed camera; 20. Non-standard lens with large depth of field; 21. High-power light source. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] See also Figure 1-3 , the utility model provides an embodiment: a lithium battery pole piece burr detection device, including a light source system 1;
[0023] Also includes:
[0024] A detection base 2 is installed below the front end of the light source system 1. A pole piece guide cover 3 is provided at the upper end of the detection base 2. A high-speed camera 19 is installed inside the detection base 2. A non-standard lens 20 with a large depth of field is installed at the front end of the high-speed camera 19. A high-power light source 21 is installed at the front end of the non-standard lens 20 with a large depth of field.
[0025] Conveying rollers 16 are disposed at the front and rear ends of the detection base 2 , and pole pieces 18 are disposed between the conveying rollers 16 , and the pole pieces 18 extend between the pole piece guide cover 3 and the detection base 2 .
[0026] See also Figure 1 Only a cooling fan 7 is arranged at the upper end of the light source system 1, and two cooling fans 7 are arranged. A dustproof net 8 is installed on the outer wall of the cooling fan 7. The cooling fan 7 ensures the heat dissipation performance of the light source system 1, and the dustproof net 8 can prevent dust impurities in the air from entering the cooling fan 7.
[0027] See also Figure 1 A plurality of heat dissipation louvers 10 are arranged on the outer wall of the light source system 1 . The arrangement of the heat dissipation louvers 10 can cooperate with the heat dissipation fan 7 to introduce natural wind to improve the heat dissipation effect of the light source system 1 .
[0028] See also Figure 1 and Figure 2A bracket 4 is installed on both sides of the upper end of the light source system 1, a top plate 5 is installed on the upper end of the bracket 4, an electric push rod 6 is installed on the upper end of the top plate 5, the output end of the electric push rod 6 passes through and extends to the lower end of the top plate 5, and is transmission-connected with the pole piece guide cover 3, the electric push rod 6 can drive the pole piece guide cover 3 to rise and fall, so as to adjust the distance between the pole piece guide cover 3 and the detection base 2 according to the different thicknesses of pole pieces of different specifications.
[0029] See also Figure 1 Roller shafts 17 are installed at both ends of the conveying roller 16, and the conveying roller 16 is connected to the transmission mechanism through the roller shaft 17. The transmission mechanism can control the rotation of the conveying roller 16 to achieve the effect of conveying the pole piece 18.
[0030] See also Figure 1 A support 11 is installed at the lower end of the light source system 1, a base plate 12 is installed at the lower end of the support 11, a mounting plate 13 is provided at the rear end of the base plate 12, the outer wall of the mounting plate 13 is welded to the base plate 12 through a tripod 14, a plurality of mounting through holes 15 are provided inside the mounting plate 13, and the mounting plate 13 is fixed to the mounting position through the mounting through holes 15 to ensure the stability of the device when in use.
[0031] Working principle: When in use, the positive electrode burr online detector is installed on the slitting side of the roller press, and the electrode 18 extends between the detection base 2 of the detector and the electrode guide cover 3. According to the different specifications and thicknesses of the electrode, the pole piece guide cover 3 can be controlled to rise and fall by the electric push rod 6 to adjust the distance between the pole piece guide cover 3 and the detection base 2. When the conveying roller 16 of the equipment runs at high speed, the imaging system in the detection base 2 of the burr detector can collect high-definition images, and the collected images are analyzed by the intelligent processing system. First, the edge of the aluminum foil metal wire and the upper and lower coating edges are located, and the burr situation between the coating and the metal wire is determined according to the position of the two edges. The burrs in the current image are analyzed according to the set values, so as to achieve real-time monitoring of the burrs generated on the end face of the pole piece. The imaging system is composed of a high-speed camera 19, a non-standard lens with a large depth of field 20 and a high-power light source 21. Among them, the high-speed camera 19 has a high acquisition frame rate and can meet the image acquisition requirements in a high-speed environment. When the pole piece moves at high speed, the axial position of the burr to be detected will change. Therefore, a non-standard lens with a large depth of field 20 is used to reduce the impact of the change in the axial position of the burr to be detected. The exposure time of a single-frame acquisition image is very short. In order to obtain a high-contrast image result, an illumination light source with a high peak power is used.
[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A lithium battery pole piece burr detection device, comprising a light source system (1); Features: Also includes: A detection base (2) is mounted below the front end of the light source system (1); a pole piece guide cover (3) is provided at the upper end of the detection base (2); a high-speed camera (19) is installed inside the detection base (2); a large depth of field non-standard lens (20) is installed at the front end of the high-speed camera (19); and a high-power light source (21) is installed at the front end of the large depth of field non-standard lens (20); The front end and the rear end of the detection base (2) are both provided with conveying rollers (16), a pole piece (18) is provided between the conveying rollers (16), and the pole piece (18) extends between the pole piece guide pressure cover (3) and the detection base (2).
2. A lithium battery pole piece burr detection device according to claim 1, characterized in that: Only a cooling fan (7) is arranged at the upper end of the light source system (1), and two cooling fans (7) are arranged. A dustproof net (8) is installed on the outer wall of the cooling fan (7).
3. A lithium battery pole piece burr detection device according to claim 1, characterized in that: A plurality of heat dissipation louvers (10) are arranged on the outer wall of the light source system (1).
4. A lithium battery pole piece burr detection device according to claim 1, characterized in that: Brackets (4) are mounted on both sides of the upper end of the light source system (1); a top plate (5) is mounted on the upper end of the bracket (4); an electric push rod (6) is mounted on the upper end of the top plate (5); an output end of the electric push rod (6) passes through and extends to the lower end of the top plate (5) and is transmission-connected to the pole piece guide cover (3).
5. A lithium battery pole piece burr detection device according to claim 1, characterized in that: Roller shafts (17) are installed at both ends of the conveying roller (16), and the conveying roller (16) is transmission-connected to the transmission mechanism via the roller shaft (17).
6. A lithium battery pole piece burr detection device according to claim 1, characterized in that: A support (11) is mounted at the lower end of the light source system (1), a base plate (12) is mounted at the lower end of the support (11), a mounting plate (13) is arranged at the rear end of the base plate (12), an outer wall of the mounting plate (13) is welded to the base plate (12) via a tripod (14), and a plurality of mounting through holes (15) are arranged inside the mounting plate (13).