Laser scribing device and operating method

Abstract

The present invention discloses a laser scribing device and an operating method, belonging to the technical field of laser processing devices, wherein the laser scribing device comprises a rotating drum and a loading platform connected to the rotating drum, the loading platform can be flipped relative to the rotating drum, the periphery of the rotating drum is provided with a conveying station, a scribing station and a loading station, and two groups of mutually parallel suction cups are arranged on the loading platform; when the battery cells are not completely cut, the suction of the battery cells by the suction cups can prevent the connecting rod from moving outward, thereby maintaining the stability of the slider in the vertical direction, so that the bevel gear will only mesh with the second rack during the revolution, which can prevent the uncut battery cells from being placed in the storage box, and the overall operation of the device is relatively coherent, and after the laser cutting is completed, the battery cells can be placed in the storage box for storage.

Description

Technical Field

[0001] The present invention relates to the technical field of laser processing devices, and in particular to a laser scribing device and an operating method. Background Art

[0002] The current scribing device mainly uses a material transfer mechanism to transport the battery cell to the scribing position, and then a laser scribing head performs laser scribing. After scribing, the battery cell is moved away by the material transfer mechanism.

[0003] Chinese patent CN220093399U discloses a photovoltaic cell laser scribing device, which sets two support plates on the top of the workbench that can be moved from the loading station to the scribing station and then to the unloading station, and then cooperates with separate loading suction cups and unloading suction cups. During cutting and scribing, the loading suction cups and unloading suction cups can continue to load and unload materials, thereby improving production efficiency.

[0004] The above-mentioned device uses a feeding suction cup to absorb and feed the cut battery cells. However, in actual use, when the battery cells are not completely cut due to insufficient power of the laser device or the size of the battery cells themselves, it is difficult to place them separately through this structure, which is not conducive to the storage of the battery cells. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide a laser scribing device and an operating method to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a laser scribing device and an operating method to solve the problem that the existing device proposed in the above background technology absorbs and discharges the cut battery cells by setting a discharge suction cup, but in actual use, when the battery cells are not completely cut due to insufficient power of the laser device or the size of the battery cells themselves, it is difficult to place them separately through this structure, which is not conducive to the storage of the battery cells.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a laser scribing device, comprising a rotating drum and a loading platform connected to the rotating drum, the loading platform can be flipped relative to the rotating drum, the outer periphery of the rotating drum is provided with a conveying station, a scribing station and a loading station, two groups of mutually parallel suction cups are provided on the loading platform, a connecting rod is fixedly provided between the suction cups of the same group, and the connecting rod is elastically matched with the loading platform, a connecting tube is fixedly provided on a side surface of the loading platform close to the rotating drum, and one end of the connecting tube away from the loading platform is matched with the rotating drum through a clamping unit, and a bevel gear is fixedly provided on the outer fixed sleeve of the rotating drum;

[0008] A first rack is provided between the dicing station and the loading station, a second rack is provided between the loading station and the conveying station, L-shaped support rods are fixedly provided at the bottom ends of the first rack and the second rack, a rotating shaft is provided between the two support rods, the rotating shaft passes through the support rod and is threadedly connected thereto, a driving assembly matching the rotating shaft is provided in the rotating cylinder, when the battery cell is not cut, the driving assembly can remain stable in the vertical direction, so that the bevel gear only meshes with the second bevel gear during the rotation of the connecting tube.

[0009] As a further solution of the present invention: the conveying station is provided with a conveyor belt for conveying the battery cells, the dicing station is provided with a laser device for cutting the battery cells, and the storage station is provided with a storage box for storing the battery cells.

[0010] As a further solution of the present invention: the driving assembly includes a slider arranged in the rotating drum and a connecting block rotatably installed on the bottom end of the slider, the bottom end face of the connecting block is provided with an open groove, a spur rack is fixedly provided on the inner wall of the open groove, a driven gear meshing with the spur rack is fixedly provided on the outer side of the rotating shaft, and a traction rope is fixedly provided between the connecting rod and the slider.

[0011] As a further solution of the present invention: a sliding rod is fixedly provided on the outer circumferential surface of the sliding block, a sliding groove slidably matched with the sliding rod is opened on the wall of the rotating cylinder, a first support bar and a second support bar are arranged on the outer side of the rotating cylinder, an opening is arranged between the first support bar and the second support bar, the opening is located between the laser device and the storage box, a support plate is hinged on the side of the first support bar away from the opening, and an inclined guide portion is integrally formed on the end of the second support bar away from the opening.

[0012] As a further solution of the present invention: a third rack is arranged on the outer side of the rotating drum, and the bevel gear can mesh with the third rack during the orbital process.

[0013] As a further solution of the present invention: the clamping unit includes a limit block arranged on the outer circumference of the connecting tube and elastically matched with the connecting tube, and both sides of the limit block away from the connecting tube are arranged with inclined surfaces, and a circular hole is opened on the rotating drum to cooperate with the connecting tube for rotation, and a limit groove is opened on the inner wall of the circular hole to cooperate with the limit block.

[0014] As a further solution of the present invention: a base is provided at the bottom end of the rotating drum, and the rotating drum and the base are rotatably matched.

[0015] As a further solution of the present invention: a lifting unit is arranged below the base, and the lifting unit is a hydraulic rod.

[0016] A method for operating the above-mentioned laser scribing device includes the following steps: conveying the battery cells to the rotating drum via a conveyor belt, driving the loading platform to move above the conveyor belt, and adsorbing the battery cells via a suction cup; rotating the loading platform to below the laser device, and cutting the battery cells via the laser device; driving the loading platform to rotate above a storage box via the rotating drum, and placing the cut battery cells into the storage box.

[0017] Compared with the prior art, the beneficial effects of the present invention are: this device can detect the cutting status of the battery cell when loading the battery cell. When the battery cell is completely cut, the loading platform can flip 180° before reaching the storage box, so that the cut battery cell can fall into the storage box. When the battery cell is not completely cut, the suction cup adsorbs the battery cell to prevent the connecting rod from moving outward, thereby maintaining the stability of the slider in the vertical direction, so that the bevel gear will only engage with the second rack during the revolution, which can prevent the uncut battery cell from being placed in the storage box, and the overall operation of the device is relatively coherent, and the battery cell can be placed in the storage box after the laser cutting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 is a top view of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 is a schematic diagram of the position of the third rack of the present invention;

[0022] Figure 4 It is a schematic diagram of the guide part and the support plate structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the first support bar and the second support bar of the present invention;

[0024] Figure 6 It is a schematic diagram of the limit block structure of the present invention;

[0025] Figure 7 is a schematic diagram of the spur rack structure of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the suction cup, the connecting rod and the traction rope of the present invention;

[0027] Fig. 9 The present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0028] Fig.10The present invention Figure 6 Schematic diagram of the enlarged structure at B.

[0029] In the figure: 1. conveyor belt; 2. base; 3. storage box; 4. laser device; 5. loading platform; 6. rotating shaft; 7. sliding rod; 8. first rack; 9. second rack; 10. rotating drum; 11. traction rope; 12. bevel gear; 13. connecting pipe; 14. suction cup; 15. notch; 16. third rack; 17. support rod; 18. belt; 19. support plate; 20. first support bar; 21. second support bar; 22. guide part; 23. support column; 24. driven gear; 25. vertical rod; 26. opening; 27. limit block; 2701. inclined plane; 28. slider; 29. ​​connecting block; 30. connecting rod; 31. spur rack. DETAILED DESCRIPTION

[0030] like Figure 1-5 As shown, a laser scribing device and an operating method thereof include a rotating drum 10 and a loading platform 5 connected to the rotating drum 10, and the loading platform 5 can be flipped relative to the rotating drum 10. A conveying station, a scribing station and a loading station are arranged on the periphery of the rotating drum 10. Specifically, a conveying belt 1 for conveying battery cells is arranged at the conveying station, and a laser device 4 for scribing battery cells is arranged at the scribing station. The laser device 4 can move along the X, Y and Z directions, which can be specifically achieved by a structure such as a manipulator or a cylinder, which will not be elaborated here. A storage box 3 for storing the scribed battery cells is arranged at the storage station. In actual use, two sets of mutually parallel suction cups 14 are arranged on the loading platform 5. When the loading platform 5 moves to the battery cells above the conveyor belt 1, When the rotating drum 10 drives the loading platform 5 to rotate to the dicing station, the loading platform 5 can be flipped 180°, so that the battery cell can be flipped to the upper position of the loading platform 5 and be in a horizontal state. At this time, the battery cell can be cut by the laser device 4. Thereafter, when the rotating drum 10 drives the loading platform 5 to rotate to the loading station, the loading platform 5 can be flipped 180° again, so that the cut battery cell can be placed in the storage box 3 for storage. In actual use, an air pump can be installed on the side of the loading platform 5 away from the suction cup 14, and the output end of the air pump is connected to the suction cup 14. Of course, the air pump can also be installed at the top position of the rotating drum 10, so that the pipeline between the air pump and the suction cup 14 passes through the connecting pipe 13.

[0031] In actual use, a slot 15 matching with the suction cup 14 is provided on the loading platform 5, so that the suction cup 14 can slide in the slot 15, and each group of suction cups 14 is provided with at least two, and a connecting rod 30 is fixedly provided between the multiple suction cups 14, and the connecting rod 30 is elastically matched with the loading platform 5.

[0032] In actual use, in order to drive the loading platform 5 to deflect, a connecting pipe 13 is fixedly provided on one side of the loading platform 5 close to the drum 10, and the end of the connecting pipe 13 away from the loading platform 5 extends into the wall of the drum 10 and cooperates with the drum 10 through a clamping unit. A bevel gear 12 is fixedly sleeved on the outer side of the drum 10.

[0033] Furthermore, a first rack 8 is provided between the laser device 4 and the storage box 3, and a second rack 9 is provided between the storage box 3 and the conveyor belt 1. Specifically, the first rack 8 and the second rack 9 can mesh with the bevel gear 12 (the first rack 8 and the second rack 9 can be regarded as a section cut from the bevel gear ring), and the bottom ends of the first rack 8 and the second rack 9 are fixedly provided with an L-shaped support rod 17, and a rotating shaft 6 is provided between the two support rods 17. Specifically, the rotating shaft 6 passes through the support rod 17 and is threadedly connected thereto. Through this structure, the rotating shaft 6 can drive the two support rods 17 to move synchronously during rotation. In specific application, in the rotating drum 10 A driving assembly matched with the rotating shaft 6 is provided. When the battery cell is cut, the driving assembly can move downward in the vertical direction and drive the rotating shaft 6 to rotate, so as to adjust the positions of the first rack 8 and the second rack 9, so that when the connecting tube 13 drives the loading platform 5 to rotate, the bevel gear 12 can mesh with the first rack 8 but not with the second rack 9. When the battery cell is not cut, the driving assembly can remain relatively stable in the vertical direction, so that the bevel gear 12 only meshes with the second bevel gear 12 during the rotation of the connecting tube 13. This structure can prevent the uncut battery cells from being placed in the storage box 3.

[0034] like Figure 2-10 As shown, the driving assembly includes a slider 28 disposed in the drum 10 and a connecting block 29 rotatably mounted on the bottom end of the slider 28. The connecting block 29 and the slider 28 can be rotatably matched through a tapered roller bearing. Figure 4 , Figure 7 As shown, the bottom end surface of the connecting block 29 is provided with an open groove, so that the connecting block 29 can move in the vertical direction relative to the rotating shaft 6, and a spur rack 31 is fixedly provided on the inner wall of the open groove, and a driven gear 24 meshing with the spur rack 31 is fixedly sleeved on the outer side of the rotating shaft 6;

[0035] Furthermore, a traction rope 11 is fixedly arranged between the connecting rod 30 and the slider 28, and the traction rope 11 passes through the loading platform 5 and the connecting tube 13 and slidably cooperates therewith. Specifically, the end of the traction rope 11 away from the loading platform 5 is inserted into the rotating drum 10 along the axial direction of the connecting tube 13. Through this structure, when the battery cell is cut, the slider 28 can move downward in the vertical direction, so that the spur rack 31 is engaged with the driven gear 24, thereby driving the rotating shaft 6 to rotate, thereby adjusting the position of the support rod 17, so that during the rotation of the loading platform 5, the bevel gear 12 is only engaged with the first bevel gear 12.

[0036] The outer peripheral surface of the slider 28 is fixedly provided with a slide bar 7, and the wall of the drum 10 is provided with a slide groove for slidingly cooperating with the slide bar 7. In addition, a first support bar 20 and a second support bar 21 are also provided on the outer side of the drum 10. Figure 4-Figure 5 As shown, an opening 26 is provided between the first support bar 20 and the second support bar 21, and the opening 26 is located between the laser device 4 and the storage box 3. In actual use, after the slide bar 7 passes over the opening 26, the bevel gear 12 can overlap with the first rack 8 in the vertical direction, and a support plate 19 is hinged on the side of the first support bar 20 away from the opening 26. When the support plate 19 is in a horizontal state, the support plate 19 can only rotate upward relative to the first support bar 20. An inclined guide portion 22 is integrally formed at one end of the second support bar 21 away from the opening 26. In actual use, when the slide bar 7 moves along the bottom of the first support bar 20 to the guide portion 22, the slide bar 7 can be moved back to the top of the second support bar 21 through the guide portion 22. Of course, before the slide bar 7 moves to the guide portion 22, the bevel gear 12 and the second rack 9 can overlap with each other in the vertical direction.

[0037] In actual use, a third rack 16 is also provided on the outer side of the rotating drum 10. The third rack 16 can also be regarded as a section cut from the bevel gear ring, so that the bevel gear 12 can mesh with the third rack 16 during the revolution. In the specific application process, the battery cells to be processed are conveyed to the rotating drum 10 by the conveyor belt 1, and the rotation of the rotating drum 10 is driven to enable the loading platform 5 to move above the battery cells, and the battery cells can be adsorbed by the suction cup 14 on the loading platform 5. Afterwards, in the process of the rotating drum 10 rotating to the laser device 4, the bevel gear 12 can mesh with the third rack 16, thereby driving the loading platform 5 to rotate 180°, so that the battery cells can be flipped to the top of the loading platform 5 and be in a horizontal state. At this time, the battery cells can be cut by the laser device 4, refer to Figure 1 As shown, the laser device 4 cuts the battery sheet along the front-to-back direction;

[0038] When the battery sheet is completely cut, the two groups of suction cups 14 can move outward relative to the loading platform 5. At this time, the gravity of the slider 28 can drive the connecting rod 30 and the suction cup 14 to move outward through the traction rope 11. Therefore, when the slide bar 7 on the rotating drum 10 rotates to the opening 26 between the first support bar 20 and the second support bar 21, the slide bar 7 can slide downward along the slide groove on the rotating drum 10, so that the slide bar 7 is placed under the first support bar 20. During this process, the slider 28 and the connecting block 29 move downward relative to the rotating drum 10, so that the spur rack 31 on the connecting block 29 can mesh with the driven gear 24 on the outer side of the rotating shaft 6, thereby driving the rotating shaft 6 to rotate, thereby driving the first rack 8 and the second rack 9 to rotate on the horizontal plane. Move, so that the bevel gear 12 will only mesh with the first rack 8 during the revolution. Specifically, the meshing of the first rack 8 and the bevel gear 12 can drive the connecting tube 13 and the loading platform 5 to flip 180° again, so that the battery cell can be located below the loading platform 5. At this time, the suction cup 14 removes the suction force on the battery cell so that the battery cell can fall into the storage box 3. Afterwards, when the bevel gear 12 passes the second rack 9, the slide bar 7 moves to the guide part 22, and then returns to the top of the second support bar 21 through the guide part 22. In this process, the slider 28 and the connecting block 29 will be reset, and the meshing of the spur rack 31 and the driven gear 24 can drive the first rack 8 and the second rack 9 to reset for the next use;

[0039] When the battery cell is not completely cut, the suction cup 14 is adsorbed on the battery cell, so that the connecting rod 30 and the suction cup 14 cannot move relative to the loading platform 5. Therefore, when the slide bar 7 rotates to the opening 26 with the rotating drum 10, the pulling force of the slider 28 by the traction rope 11 prevents the slide bar 7 from passing through the opening 26 and falling to the bottom of the first support bar 20. That is to say, in this state, the first rack 8 and the second rack 9 can maintain their initial positions, so that the bevel gear 12 will only engage with the second rack 9 during the revolution. Specifically, the engagement of the second rack 9 with the bevel gear 12 can drive the loading platform 5 to flip 180°, so that the battery cell is flipped to the bottom of the loading platform 5. Since the suction cup 14 has removed the suction force on the battery cell, the battery cell can be detached from the loading platform 5. When the slide bar 7 passes over the support plate 19, the slide bar 7 can return to the top of the second support bar 21.

[0040] To sum up, this device can detect the cutting status of the battery cell when loading the battery cell. When the battery cell is completely cut, the loading platform 5 can flip 180° before reaching the storage box 3, so that the cut battery cell can fall into the storage box 3. When the battery cell is not completely cut, the suction cup 14 can adsorb the battery cell to prevent the connecting rod 30 from moving outward, thereby maintaining the stability of the slider 28 in the vertical direction, so that the bevel gear 12 will only engage with the second rack 9 during the revolution, which can avoid placing the uncut battery cell into the storage box 3, and the overall operation of the device is relatively coherent, and the battery cell can be placed into the storage box 3 after the laser cutting is completed.

[0041] The above-mentioned clamping unit includes a limit block 27 which is arranged on the outer peripheral surface of the connecting tube 13 and elastically cooperates with the connecting tube 13. Specifically, a groove which slides with the limit block 27 is provided on the outer peripheral surface of the connecting tube 13, and a first spring is fixedly provided between the inner end surface of the groove and the limit block 27. Both sides of the end of the limit block 27 away from the connecting tube 13 are provided with inclined surfaces 2701, and a circular hole which rotates with the connecting tube 13 is provided on the rotating drum 10. Of course, the circular hole can be a through structure, and a limit groove which cooperates with the limit block 27 is provided on the inner wall of the circular hole. In the initial state, one end of the limit block 27 is inserted into The limit block 27 is in the limit groove, and a part of the inclined surface 2701 on the limit block 27 is placed outside the limit groove. Through this structure, when the bevel gear 12 drives the connecting tube 13 to rotate, the pressure between the inclined surface 2701 on the limit block 27 and the side edge of the limit groove increases, so that the limit block 27 can be compressed into the connecting tube 13, so that the connecting tube 13 can rotate relative to the rotating drum 10. The engagement of the bevel gear 12 with the first rack 8 or the engagement of the bevel gear 12 with the second rack 9 can drive the connecting tube 13 to rotate 180°, so that the limit block 27 can be inserted into the limit groove, thereby maintaining the stability of the loading platform 5.

[0042] Reference Figure 1-2 As shown in FIGS. 6-8 , in actual use, a pillar 23 may be further provided at the dicing station. When the carrier 5 moves to the dicing station, the pillar 23 is located at the bottom of the carrier 5 and contacts the carrier 5 , so as to provide stable support for the carrier 5 .

[0043] A base 2 is provided at the bottom end of the rotating drum 10, and the rotating drum 10 and the base 2 are rotatably matched. A strip groove is opened on the top surface of the base 2, and the strip groove is parallel to the connecting line between the two support rods 17. The above-mentioned rotating shaft 6 is rotatably installed in the strip groove. Vertical plates are fixedly installed between the above-mentioned first rack 8 and the base 2 and between the second rack 9 and the base 2. The third rack 16 and the base 2 are fixedly installed with a support column.

[0044] A lifting unit is provided below the base 2, and the lifting unit may be a component such as a hydraulic rod. Through this structure, when the loading platform 5 rotates to above the conveyor belt 1, the loading platform 5 is driven downward by the hydraulic rod so that the suction plate contacts the battery cell, thereby being able to suck up the battery cell.

[0045] In actual use, a pulley can be fixedly installed in the rotating drum 10 so that the traction rope 11 passes around the outside of the pulley, which is beneficial to the stable movement of the traction rope 11.

[0046] The loading platform 5 is provided with an installation groove connected with multiple slots 15 of the same group, and the connecting rod 30 is slidably set in the installation groove. A limit spring is fixedly set between the inner wall of the installation groove and the connecting rod 30. When the slider 28 moves downward, the connecting rod 30 can be pulled outward by the traction rope 11 and compress the limit spring.

[0047] Reference Figure 3 As shown, in order to drive the drum 10 to rotate, a motor can be installed on the base 2, and the output shaft of the motor can be connected to the drum 10 via a belt 18 or a gear transmission to drive the drum 10 to rotate.

[0048] A vertical rod 25 is fixedly disposed on the bottom end surface of the connecting block 29 , and the vertical rod 25 extends into the base 2 and slidably cooperates with the base 2 .

[0049] Reference Figure 2-3 As shown, in actual use, a joint can be rotatably installed on the top end surface of the slider 28 so that one end of the traction rope 11 is fixedly connected to the joint.

Claims

1. A laser scribing device, comprising a rotating drum and a loading platform connected to the rotating drum, the loading platform can be flipped relative to the rotating drum, the outer periphery of the rotating drum is provided with a conveying station, a scribing station and a loading station, two groups of mutually parallel suction cups are provided on the loading platform, a connecting rod is fixedly provided between the suction cups of the same group, and the connecting rod is elastically matched with the loading platform, characterized in that: A connecting pipe is fixedly arranged on one side of the material loading platform close to the rotating drum, and one end of the connecting pipe away from the material loading platform is matched with the rotating drum through a clamping unit, and a bevel gear is fixedly sleeved on the outer side of the rotating drum; A first rack is provided between the dicing station and the loading station, and a second rack is provided between the loading station and the conveying station. The bottom ends of the first rack and the second rack are fixedly provided with L-shaped support rods, and a rotating shaft is provided between the two support rods. The rotating shaft passes through the support rod and is threadedly connected thereto. A driving assembly matched with the rotating shaft is provided in the rotating cylinder. When the battery sheet is not cut, the driving assembly can remain stable in the vertical direction, so that the bevel gear only meshes with the second bevel gear during the rotation of the connecting tube; The conveying station is provided with a conveyor belt for conveying the battery cells, the dicing station is provided with a laser device for cutting the battery cells, and the loading station is provided with a storage box for storing the battery cells; The driving assembly includes a slider disposed in the rotating drum and a connecting block rotatably mounted on the bottom end of the slider, the bottom end surface of the connecting block is provided with an open groove, a spur rack is fixedly provided on the inner wall of the open groove, a driven gear meshing with the spur rack is fixedly provided on the outer side of the rotating shaft, and a traction rope is fixedly provided between the connecting rod and the slider; A slide bar is fixedly arranged on the outer circumference of the slider, a slide groove slidably matched with the slide bar is provided on the wall of the rotating drum, a first support bar and a second support bar are provided on the outer side of the rotating drum, an opening is provided between the first support bar and the second support bar, the opening is between the laser device and the storage box, a support plate is hingedly connected to one side of the first support bar away from the opening, and an inclined guide portion is integrally formed on one end of the second support bar away from the opening; A third rack is arranged on the outer side of the rotating drum, and the bevel gear can mesh with the third rack during the orbital process; The clamping unit includes a limit block arranged on the outer circumferential surface of the connecting tube and elastically matched with the connecting tube, and both sides of the limit block away from the connecting tube are arranged with inclined surfaces, and a circular hole is opened on the rotating drum to rotate with the connecting tube, and a limit groove is opened on the inner wall of the circular hole to match the limit block.

2. A laser scribing device according to claim 1, characterized in that: A base is arranged at the bottom end of the rotating drum, and the rotating drum and the base are rotatably matched.

3. A laser scribing device according to claim 2, characterized in that: A lifting unit is arranged below the base, and the lifting unit is a hydraulic rod.

4. A method for operating the laser scribing device according to any one of claims 1 to 3, characterized in that: The method comprises the following steps: conveying the battery cells to the rotating drum via a conveyor belt, driving the loading platform to move above the conveyor belt, and adsorbing the battery cells via a suction cup; rotating the loading platform to below a laser device, and cutting the battery cells via the laser device; driving the loading platform to rotate above a storage box via the rotating drum, and placing the cut battery cells into the storage box.

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