A tab laser cutting device

Abstract

The present invention discloses a tab laser cutting device, comprising a processing plane, a processing station formed on the processing plane, a lifting assembly and a transparent pressing plate, the transparent pressing plate being arranged corresponding to the processing station, the lifting assembly being connected to the transparent pressing plate and driving the transparent pressing plate to move longitudinally, the lower end surface of the transparent pressing plate being a pressing surface, a groove being provided on the pressing surface and forming a preset optical path through the groove, an exhaust duct, a first exhaust channel connected to the groove being provided on the transparent pressing plate, and the exhaust duct being connected to the first exhaust channel. The transparent pressing plate is provided to press the tab while laser cutting is being performed, thereby keeping the tab fixed during the cutting process, providing a large adsorption force by negative pressure adsorption on the preset optical path to ensure the removal of smoke and dust, and at the same time adsorbing the tab on the pressing surface to improve the fixing effect on the tab.

Description

Technical Field

[0001] The present invention relates to the field of tab processing, and more particularly to a tab laser cutting device. Background Art

[0002] The tab is an important area on the electrode, which is used to provide a contact point to lead out the positive and negative contact points of the battery cell. In the existing technology, the processing of the tab is mostly completed by laser cutting.

[0003] During the laser cutting process of the tab, on the one hand, a large amount of smoke and dust will be generated on the surface of the tab as the laser cutting progresses, thereby affecting the laser focus. In the prior art, the smoke and dust are mostly removed by arranging an exhaust device around it, but this type of removal effect is poor. At the same time, the tab is easily affected by the vibration of the machine or the exhaust of the exhaust device during the cutting process, causing the tab to vibrate slightly, thereby causing the laser cutting optical path to shift, affecting the final tab quality. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a tab laser cutting device that can remove smoke and dust and fix the pole piece at the same time.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tab laser cutting device, comprising a processing plane, on which a processing station is formed, a lifting assembly and a transparent pressing plate, the transparent pressing plate is arranged corresponding to the processing station, the lifting assembly is connected to the transparent pressing plate and drives the transparent pressing plate to rise and fall, the lower end surface of the transparent pressing plate is a pressing surface, a groove is provided on the pressing surface and a preset light path is formed by the groove, an exhaust duct, a first exhaust channel connected to the groove is provided on the transparent pressing plate, and the exhaust duct is connected to the first exhaust channel.

[0006] Through the above technical solution, a greater exhaust force can be obtained, thereby improving the dust removal effect. At the same time, the pole piece can be adsorbed on the surface of the pressing surface by means of negative pressure, and then the pressing effect of the pressing surface can be used to avoid micro-vibration of the pole piece, thereby improving the quality of the tab forming.

[0007] As a further improvement of the present invention, the transparent covering plate includes a first plate body and a second plate body, the first exhaust channel is located in the first plate body, an installation cavity is opened on the first plate body, the second plate body is installed in the installation cavity, the gap between the first plate body and the second plate body forms a groove, the side of the second plate body is extended outward with a resistance plate, the first plate body forms a resistance surface corresponding to the resistance plate, the resistance plate is used to resist the resistance surface and limit the second plate body from rising and falling relative to the first plate body, the lower end surface of the first plate body forms an adsorption surface, the second exhaust channel is formed in the first plate body, the adsorption surface is provided with an adsorption hole connected to the second exhaust channel, the outside of the resistance plate forms a first exhaust hole connected to the second exhaust channel, the first exhaust channel forms a second exhaust hole corresponding to the first exhaust hole, and the lifting of the first plate body relative to the second plate body drives the connection and separation of the first exhaust hole and the second exhaust hole.

[0008] Through the above technical solution, the separation of the electrode protrusion and the electrode ear can be achieved, thereby realizing the waste separation capability. At the same time, the setting of the adsorption holes can enhance the adsorption capability of the electrode sheet, thereby improving the electrode ear cutting quality.

[0009] As a further improvement of the present invention, the pole piece includes a pole lug and a waste area, the waste area forms a protrusion corresponding to the two pole lugs, and the second plate is arranged corresponding to the protrusion.

[0010] Through the above technical solution, the damage caused by adsorption to the electrode use area can be reduced, and the shape of the electrode ear can be kept unchanged while achieving the separation effect, so as to avoid damage to the electrode ear due to bending.

[0011] As a further improvement of the present invention, pressure control holes are provided on the first plate body and the second plate body, and the pressure control holes are respectively connected to the first exhaust channel and the second exhaust channel. The pressure control holes adjust the air pressure in the first exhaust channel and the second exhaust channel to be the same as the external air pressure.

[0012] Through the above technical solution, the air pressure in the first exhaust channel and the second exhaust channel can be adjusted immediately, thereby facilitating separation from the electrode.

[0013] As a further improvement of the present invention, the lifting assembly includes a frame and a driving cylinder, the driving cylinder is fixedly mounted on the frame, a connecting end is provided on the second plate, and the output end of the driving cylinder is connected to the connecting end.

[0014] Through the above technical solution, the driving method of the cylinder can avoid vibration during the pole piece cutting process, and the cylinder can make the overall structure simpler.

[0015] As a further improvement of the present invention, the number of the adsorption holes is at least 2, and at least two of the adsorption holes are arranged corresponding to the vertices of the protrusion.

[0016] The above technical solution can facilitate the separation of the protrusion and the tab.

[0017] As a further improvement of the present invention, a sensor is provided on the contact surface, and the sensor is used to detect the contact between the contact plate and the contact surface.

[0018] Through the above technical solution, the position of the resistance plate can be identified, and the movement state of the cylinder can be adjusted.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The transparent pressing plate is set to press the electrode while laser cutting, thereby keeping the electrode fixed during the cutting process;

[0021] 2. The negative pressure adsorption of the preset optical path can provide a strong adsorption force to ensure the removal of smoke and dust, and at the same time can adsorb the electrode on the pressing surface to improve the fixing effect of the electrode ear;

[0022] 3. The waste area and the tab are separated by relative movement of the first plate and the second plate, thereby facilitating the subsequent stripping of the waste area. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the processing station of the present invention;

[0025] Figure 3 This is a schematic diagram of a transparent cladding plate according to the present invention;

[0026] Figure 4 This is a schematic diagram of the first plate of the present invention;

[0027] Figure 5 for Figure 3 A partial enlarged view;

[0028] Figure 6 This is a cross-sectional schematic diagram of the installation of the contact plate of the present invention;

[0029] Figure 7 Schematic cross-sectional view of the first exhaust channel of the present invention.

[0030] Figure markings: 1. Processing plane; 2. Laser head; 3. Slice area; 4. Waste area; 5. Tab; 6. Protrusion; 7. Processing station; 8. Lifting assembly; 9. Transparent pressing plate; 10. Pressing surface; 11. Groove; 12. Exhaust duct; 13. Exhaust fan; 14. First plate body; 15. Second plate body; 16. Mounting cavity; 17. Extension surface; 18. Gap; 19. Contact plate; 20. Contact surface; 21. Adsorption surface; 22. Second exhaust channel; 23. First exhaust hole; 24. Second exhaust hole; 25. Frame; 26. Driving cylinder; 27. Connecting end; 28. Pressure control hole; 29. ​​Sensor; 30. First exhaust channel; 31. Adsorption hole. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, wherein the same components are represented by the same reference numerals.

[0032] Reference Figure 1-2 , a pole piece laser cutting device includes a processing plane 1 and a laser head 2, the processing plane 1 is used to receive the pole piece, and a sheet area 3 and a waste area 4 are formed on the pole piece, the pole piece 5 is an extension of the sheet area 3, and the waste area 4 corresponds to a protrusion 6 formed between two pole pieces 5. When in use, the pole piece is transported on the processing plane 1 through a conveying component (not shown in the figure), and the conveying component is any single-line conveying method in the prior art. A processing station 7 is formed on the processing plane 1, and the laser head 2 is arranged corresponding to the processing station 7. When in use, the laser head 2 is connected to a motion component (not shown in the figure), and the motion component is any two- or three-dimensional moving component in the prior art. The motion component is used to drive the laser head 2 to perform two- or three-dimensional movement to complete the cutting.

[0033] Reference Figure 1-3 , also includes a lifting component 8 and a transparent pressing plate 9, the transparent pressing plate 9 can be made of optical glass or plastic, and the plastic can be specifically PBT plastic. The transparent pressing plate 9 is arranged corresponding to the processing station 7, and the lifting component 8 is connected to the transparent pressing plate 9 and drives the transparent pressing plate 9 to rise and fall. The lower end surface of the transparent pressing plate 9 is a pressing surface 10, and a groove 11 is provided on the pressing surface 10 and a preset light path is formed by the groove 11. In this embodiment, the groove 11 includes a processing edge corresponding to the protrusion 6 and a part of the tab 5 processing area connected to the processing edge, wherein the part of the tab 5 processing area is at least half of the entire tab 5 processing area, so that the tab 5 processing area forms an overlapping area in the two cuttings, thereby avoiding the residual uncut area.

[0034] Reference Figure 1 and Figure 7, also includes an exhaust pipe 12, the transparent covering plate 9 is provided with a first exhaust channel 30 connected to the groove 11, one end of the exhaust pipe 12 is connected to the first exhaust channel 30, and the other end is connected to the exhaust fan 13 and the exhaust fan 13 provides negative pressure.

[0035] During use, after the protrusion 6 moves to the processing station 7, the lifting assembly 8 drives the transparent pressing plate 9 to move downward, so that the pressing surface 10 presses the electrode, and the exhaust fan 13 is further started to provide negative pressure for the exhaust pipe 12. At the same time, the electrode is affected by the negative pressure of the groove 11 and adheres to the surface of the pressing surface 10. The laser is further cut along the preset optical path. During the cutting process, the exhaust fan 13 always provides negative pressure, so that the smoke generated by the cutting is extracted along the first exhaust channel 30.

[0036] Reference Figure 3 、 4 , 5 and 6, the transparent pressure covering plate 9 includes a first plate body 14 and a second plate body 15, the first exhaust channel 30 is located in the first plate body 14, the first plate body 14 is provided with a mounting cavity 16, the mounting cavity 16 extends inwardly with an extension surface 17, the second plate body 15 is arranged in the mounting cavity 16, the pressure covering surface 10 is a plane composed of the lower end surfaces of the first plate body 14 and the second plate body 15, the second plate body 15 is provided corresponding to the protrusion 6, the extension surface 17 conflicts with the outer wall of the mounting cavity 16 and forms a gap 18 between the first plate body 14 and the second plate body 15, the gap 18 forms a groove 11, and a contact plate 19 extends outward from the side of the second plate body 15, and the first plate body 14 forms a contact surface corresponding to the contact plate 19 20, the contact plate 19 is used to contact the contact surface 20 and limit the second plate body 15 from rising and falling relative to the first plate body 14, an adsorption surface 21 is formed on the lower end surface of the first plate body 14, and a second exhaust channel 22 is formed in the first plate body 14, and an adsorption hole 31 connected to the second exhaust channel 22 is provided on the adsorption surface 21, and the number of adsorption holes 31 is at least 2, and at least two adsorption holes 31 are arranged corresponding to the vertices of the protrusion 6, a first exhaust hole 23 connected to the second exhaust channel 22 is formed on the outside of the contact plate 19, and the first exhaust channel 30 forms a second exhaust hole 24 corresponding to the first exhaust hole 23, and the lifting of the first plate body 14 relative to the second plate body 15 drives the connection and separation of the first exhaust hole 23 and the second exhaust hole 24.

[0037] Preferably, the lifting assembly 8 includes a frame 25 and a driving cylinder 26 . The driving cylinder 26 is fixedly mounted on the frame 25 . A connecting end 27 is provided on the second plate 15 . The output end of the driving cylinder 26 is connected to the connecting end 27 .

[0038] Preferably, a pressure control hole 28 is provided on the first plate body 14 and the second plate body 15, and the pressure control hole 28 is respectively connected to the first exhaust channel 30 and the second exhaust channel 22. The pressure control hole 28 adjusts the air pressure in the first exhaust channel 30 and the second exhaust channel 22 to be the same as the external air pressure.

[0039] Preferably, a sensor 29 is provided on the contact surface 20 . The sensor 29 is used to detect the contact between the contact plate 19 and the contact surface 20 . The sensor 29 is preferably a contact sensor 29 .

[0040] In the initial state, the first plate 14 moves downward with gravity. At this time, the contact plate 19 and the contact surface 20 contact each other, and the motor is further driven to drive the second plate 15 to move downward. The first plate 14 and the second plate 15 successively contact the pole piece. At this time, the contact plate 19 and the contact surface 20 are separated, and the first exhaust hole 23 and the second exhaust hole 24 are connected to each other, so that the first exhaust channel 30 can provide negative pressure for the second exhaust channel 22, and then the protrusion 6 is adsorbed on the lower end surface of the second plate 15 through the adsorption hole 31. After the cutting is completed, the cylinder 26 is driven to move the second plate 15 upward, and through The movement of the second plate body 15 drives the protrusion 6 to move and separate from the pole ear 5. Further, when the second plate body 15 has completed its movement, the contact plate 19 contacts the contact surface 20. The sensor 29 receives a signal and controls the driving cylinder 26 to pause. At this time, the first exhaust hole 23 and the second exhaust hole 24 are in a separated state. The second exhaust channel 22 adjusts the air pressure through the pressure control hole 28, so that the adsorption hole 31 loses its adsorption energy capacity, and the protrusion 6 returns to its position naturally. After the return is completed, the driving cylinder 26 continues to drive the second plate body 15 to move. The second plate body 15 drives the first plate body 14 to move upward and return to its original position through the contact plate 19.

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A tab laser cutting device, characterized in that: It comprises a processing plane (1), on which a processing station (7) is formed; A lifting assembly (8) and a transparent pressing plate (9), wherein the transparent pressing plate (9) is arranged corresponding to the processing station (7), the lifting assembly (8) is connected to the transparent pressing plate (9) and drives the transparent pressing plate (9) to rise and fall, the lower end surface of the transparent pressing plate (9) is a pressing surface (10), and a groove (11) is provided on the pressing surface (10) and a first preset light path is formed through the groove (11); An exhaust duct (12), wherein the transparent covering plate (9) is provided with a first exhaust channel (30) communicating with the groove (11), and the exhaust duct (12) is connected to the first exhaust channel (30); The transparent pressing plate (9) comprises a first plate body (14) and a second plate body (15), the first exhaust channel (30) is located on the first plate body (14), a mounting cavity (16) is provided on the first plate body (14), the second plate body (15) is installed in the mounting cavity (16), a gap (18) between the first plate body (14) and the second plate body (15) forms a groove (11), a side surface of the second plate body (15) extends outwardly with a contact plate (19), the first plate body (14) forms a contact surface (20) corresponding to the contact plate (19), and the contact plate (19) is used to contact the contact surface (20) and limit the first plate body (1 4) rising and falling relative to the second plate body (15), the lower end surface of the second plate body (15) forms an adsorption surface (21), a second exhaust channel (22) is formed in the second plate body (15), the adsorption surface (21) is provided with an adsorption hole (31) connected to the second exhaust channel (22), the outer side of the contact plate (19) forms a first exhaust hole (23) connected to the second exhaust channel (22), the first exhaust channel (30) forms a second exhaust hole (24) corresponding to the first exhaust hole (23), and the first plate body (14) rises and falls relative to the second plate body (15) to drive the connection and separation of the first exhaust hole (23) and the second exhaust hole (24); The lifting assembly (8) includes a frame (25) and a driving cylinder (26), wherein the driving cylinder (26) is fixedly mounted on the frame (25), and a connecting end (27) is provided on the second plate (15), and an output end of the driving cylinder (26) is connected to the connecting end (27).

2. The tab laser cutting device according to claim 1, characterized in that: The first plate body (14) and the second plate body (15) are both provided with a pressure control hole (28), the pressure control hole (28) being connected to the first exhaust channel (30) and the second exhaust channel (22) respectively, and the pressure control hole (28) adjusting the air pressure in the first exhaust channel (30) and the second exhaust channel (22) to be the same as the external air pressure.

3. The tab laser cutting device according to claim 1, characterized in that: The pole piece comprises a pole lug (5) and a waste area (4), wherein the waste area (4) forms a protrusion (6) between two pole lugs (5), and the second plate (15) is arranged corresponding to the protrusion (6).

4. The tab laser cutting device according to claim 3, characterized in that: The number of the adsorption holes (31) is at least 2, and at least two of the adsorption holes (31) are arranged corresponding to the vertices of the protrusion (6).

5. The tab laser cutting device according to claim 1, characterized in that: A sensor (29) is provided on the contact surface (20), and the sensor (29) is used to detect the contact between the contact plate (19) and the contact surface (20).

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