A laser sintering device for battery chips

Abstract

The present invention relates to the technical field of battery chip production and processing, and specifically discloses a laser sintering device for battery chips, which includes a laser sintering component and a turntable device. The turntable device includes a bearing table mechanism, a mounting table, and a rotation driving component. The bearing table mechanism includes a placement table, a positioning component, and an adsorption component. The positioning component includes a positioning clip and a positioning driving component. A positioning groove is provided on the placement table, and the positioning driving component can push the battery chip into the positioning groove. The adsorption component is arranged in the installation groove, and the adsorption component includes an adsorbent and an adsorption driving component. The adsorbent can adsorb and fix the battery chip in the positioning groove. Through the positioning component, precise positioning of the placement position of the battery chip can be achieved. In addition, the cooperation of the positioning component and the adsorption component can better fix the battery chip in the positioning groove, thereby preventing the battery chip from moving and deviating from the positioning position during the process of moving from the loading station to the unloading station, so as to ensure the quality of the laser sintered product.

Description

Technical Field

[0001] The present invention relates to the technical field of battery chip production and processing, and particularly relates to a laser sintering device for battery chips. Background Art

[0002] Battery chips are the basic components of solar cells, which can directly convert solar energy into electrical energy. Battery chips are mainly made of semiconductor materials such as silicon, and single-crystalline silicon and polycrystalline silicon are the mainstream materials in solar cell products. The working principle of battery chips is based on the photovoltaic effect and the PN junction theory. When a solar cell chip is irradiated by light, the internal charge distribution changes, thereby generating electromotive force and current. Specifically, a photovoltaic voltage is generated at the PN junction, which promotes the convection of electrons and holes. By connecting both ends through external electrodes to form a closed loop, the generation of current can be achieved. The manufacturing process of battery chips includes a laser-assisted sintering step. Laser-assisted sintering is a technology that uses the characteristics of lasers to repair under-sintered photovoltaic battery chips. It uses high-intensity laser irradiation on the battery chips to excite charge carriers, and under the condition of applying a certain deflection voltage at the same time, a local large current is generated, thereby triggering the mutual diffusion of silver paste and silicon, and significantly reducing the contact resistance between the metal and the semiconductor.

[0003] Chinese Patent with the authorization announcement number CN222621505U discloses a laser-induced sintering processing device, which includes a loading device for battery chip processing, laser processing modules and electrical input modules arranged at processing stations B and C, a loading handling mechanism and an unloading handling mechanism for transporting battery chips. The laser processing module includes a laser and a laser scanning mechanism. The laser is used to emit a laser beam, and the laser scanning mechanism is used to control the scanning direction of the laser beam. The loading device includes a turntable module, and the turntable module includes a rotation driving mechanism, a support frame and a plurality of loading platforms for loading battery chips. The driving shaft of the rotation driving mechanism is vertically arranged and connected to the center of the support frame. The plurality of loading platforms are installed on the support frame and are equidistant from the center of the support frame. When this processing device works, the battery chip is placed on the loading platform through the loading handling mechanism, and then the rotation driving mechanism drives the loading platform to rotate, so that the battery chip moves to the processing station. Then, the laser processing module emits laser to process the battery chip. After processing, the unloading handling mechanism takes the battery chip off the loading platform and transports it away.

[0004] The problems existing in the above laser-induced sintering processing device during use are: when the loading handling mechanism transports the battery chip to be processed to the loading platform, the battery chip may be misaligned; and during the process of the rotation driving mechanism driving the loading platform to rotate, the battery chip may also move, further resulting in misalignment of the battery chip, thus affecting the quality of the subsequent laser sintering products. Summary of the Invention

[0005] The present invention provides a laser sintering device for a battery cell, aiming to solve the technical problem that the battery cell is not accurately positioned when the laser induced sintering processing device in the above-mentioned prior art is used, thereby affecting the quality of the laser sintered product.

[0006] The laser sintering equipment of the battery cell of the present invention comprises a laser sintering assembly and a turntable device for carrying the battery cell, the turntable device comprises a bearing platform mechanism, a mounting platform and a rotation drive assembly, the rotation drive assembly is connected to the mounting platform in a transmission manner to drive the mounting platform to rotate, the rotation axis of the mounting platform is arranged in a vertical direction, the bearing platform mechanism is arranged on the mounting platform, the bearing platform mechanism has a loading station and a unloading station, the rotation of the mounting platform can drive the bearing platform mechanism to switch between the loading station and the unloading station, the laser sintering assembly is arranged at the unloading station, the bearing platform mechanism comprises a placing platform, a positioning assembly and an adsorption assembly, the positioning assembly comprises a positioning clamp and a positioning drive member, the upper surface of the placing platform is provided with a positioning groove for placing the battery cell, the shape of the positioning groove is adapted to the battery cell, a plurality of positioning clamps are arranged at intervals on the periphery of the positioning groove, the positioning drive member can drive each positioning clamp to move toward the positioning groove to push the battery cell into the positioning groove and clamp it;

[0007] The bottom wall of the positioning groove is provided with an installation groove, and the adsorption assembly is arranged in the installation groove. The adsorption assembly includes an adsorption member and an adsorption driving member. The adsorption member has an initial position and an adsorption position. The adsorption driving member can drive the adsorption member to switch between the initial position and the adsorption position. The adsorption member moves to the adsorption position to adsorb and fix the battery cell in the positioning groove.

[0008] The beneficial effect is that when the laser sintering equipment of the battery cell of the present invention is used, the rotating drive assembly first drives the carrier platform mechanism to move to the loading station, and then the battery cell to be sintered is placed on the upper surface of the placement table in the area surrounded by the positioning clamps, and then the positioning drive drives the positioning clamps to move toward the positioning groove, and the battery cell is pushed into the positioning groove and clamped; after the battery cell is in the positioning groove, the adsorption drive drives the adsorption member to move to the adsorption position, so that the battery cell is adsorbed and fixed in the positioning groove, and then the carrier platform mechanism is driven to move to the unloading station, and the laser sintering assembly sinters the battery cell. The positioning assembly can realize the precise positioning of the placement position of the battery cell. In addition, the positioning assembly and the adsorption assembly cooperate to better fix the battery cell in the positioning groove, thereby preventing the battery cell from moving and deviating from the positioning position during the process of moving from the loading station to the unloading station, so as to ensure the quality of the laser sintering product.

[0009] Preferably, it further includes a mounting bracket, which includes a mounting plate and legs. The suction attachment slides up and down and is sealingly fitted with the side wall of the mounting groove. The suction driving member includes a first elastic member. One end of the first elastic member is connected to the groove wall of the mounting groove, and the other end of the first elastic member is connected to the suction attachment. An avoidance hole is provided on the mounting table. The bottom of the suction attachment passes through the avoidance hole and extends downward to form a pressing portion. A lifting slope is fixedly provided on the mounting plate corresponding to the loading station. There is a lifting surface on the lifting slope. The lifting surface is higher at the front and lower at the back in the rotation direction of the pressing portion. The lifting slope is located below the mounting table and on the rotation path of the pressing portion. When the suction attachment passes through the lifting surface, it can move upward along the lifting surface to the initial position and compress the first elastic member. When the suction attachment leaves the lifting surface, the first elastic member can drive the suction attachment to move downward to the adsorption position.

[0010] The beneficial effects are as follows: It realizes that a single power source of the rotation driving assembly drives the rotation of the carrier table mechanism and drives the suction attachment to move and adsorb the battery sheet at the same time, eliminating the need to additionally set a power source for driving the movement of the suction attachment, reducing the equipment cost.

[0011] Preferably, a lifting slope is also fixedly provided on the mounting plate corresponding to the unloading station.

[0012] The beneficial effects are as follows: When the carrier table mechanism moves to the unloading station, the suction attachment moves upward along the lifting surface to the initial position, releasing the adsorption and fixation of the battery sheet. At the same time, the positioning driving member drives each positioning clip away from the positioning groove, no longer clamping the battery sheet that has been in the positioning groove, thus facilitating the removal of the battery sheet after sintering.

[0013] Preferably, two sets of carrier table mechanisms are provided, and the two sets of carrier table mechanisms are symmetrically arranged about the rotation axis center of the mounting table. Two sets of lifting slopes are provided, and the two sets of lifting slopes are symmetrically arranged about the rotation axis center of the mounting table.

[0014] The beneficial effects are as follows: It realizes that when one set of carrier table mechanisms is at the loading station, the other set of carrier table mechanisms is at the unloading station, so that the loading and unloading of battery sheets can be carried out simultaneously, improving the working efficiency.

[0015] Preferably, the positioning driving member includes a first vertical rack, a first gear and a first horizontal rack. The first vertical rack slides vertically in the mounting groove. The upper end of the first vertical rack is fixedly connected to the bottom of the suction attachment. The first gear rotates in the mounting groove. The first gear meshes with the first vertical rack. The first horizontal rack slides in the mounting groove along a direction perpendicular to the side wall of the positioning groove. The first horizontal rack meshes with the first gear. The positioning clip is fixedly provided on the first horizontal rack. When the first vertical rack moves downward, it can drive the positioning clip to move towards the positioning groove.

[0016] Preferably, four positioning clips are provided. The four positioning clips are respectively located around the positioning groove and are arranged in pairs opposite to each other. Two positioning driving members are provided, and the two positioning driving members are respectively connected to two relatively arranged positioning clips. Each positioning driving member is used to drive the positioning clip connected thereto to move towards the positioning groove. On both sides of the length direction of the first transverse rack, first sliding rods are respectively fixed. The two first sliding rods are arranged in a V shape. On both sides of the bottom of the other two positioning clips, second sliding rods are respectively fixed. The two second sliding rods are arranged in a V shape. The second sliding rods are in guiding sliding fit with the adjacent first sliding rods along their length directions. When the two first transverse racks approach each other, they can drive the other two positioning clips to move towards the positioning groove and approach each other.

[0017] Preferably, the adsorbing member includes a sealing adsorption portion, a second elastic member, and a sliding portion. The sealing adsorption portion is in vertical sliding and sealing fit with the side wall of the installation groove. The sliding portion is vertically slidably arranged on the sealing adsorption portion and is located below the sealing adsorption portion. The bottom of the sliding portion forms the extrusion portion. The sealing adsorption portion and the sliding portion are elastically connected by the second elastic member. The elastic coefficient of the second elastic member is smaller than that of the first elastic member. In the installation groove, a plurality of lifting assemblies for horizontally lifting the battery sheet are further provided. The lifting assembly includes a second gear, a second vertical rack, a third vertical rack, and a lifting rod. The second vertical rack is fixed to the bottom of the sealing adsorption portion. The third vertical rack is vertically slidably arranged in the installation groove. The lifting rod is fixed to the upper end of the third vertical rack. The second gear is rotatably arranged in the installation groove. The second gear meshes with the third vertical rack. When the second vertical rack moves downward, it can mesh with the second gear and drive the lifting rod to move upward and protrude from the bottom wall of the positioning groove.

[0018] Preferably, the carrier table mechanism further includes a dust suction assembly. The dust suction assembly is arranged on the placement table and can rotate with the placement table. The dust suction assembly includes a dust suction port and a suction fan. When the lifting assembly horizontally lifts the battery sheet, a dust suction gap is formed between the bottom of the battery sheet and the bottom wall of the positioning groove. The dust suction port can suck and remove the dust and impurities in the dust suction gap.

[0019] The beneficial effects are as follows: When there are dust and impurities in the positioning groove, resulting in the battery sheet not being able to fit tightly with the bottom wall of the positioning groove, the battery sheet is horizontally lifted by the lifting assembly, so that a dust suction gap is formed between the bottom of the battery sheet and the upper surface of the positioning groove. Then, the dust suction assembly sucks and removes the dust and impurities in the dust suction gap, so that the battery sheet can fit tightly with the bottom wall of the positioning groove, ensuring the positioning accuracy of the battery sheet.

[0020] Preferably, the dust suction assembly further includes a controller and a position sensor. The position sensor is arranged on the placement table and is used to detect the position of the battery cell. When the battery cell is lifted to a set height by the lifting rod, the position sensor sends a start signal to the controller. After receiving the start signal, the controller controls the suction fan to start. When the battery cell is lower than the set height, the position sensor sends a shutdown signal to the controller. After receiving the shutdown signal, the controller controls the suction fan to shut down.

[0021] Preferably, it further includes a loading mechanism and an unloading mechanism. The loading mechanism is used to place the battery cells to be sintered in the positioning grooves of the placement table, and the unloading mechanism is used to remove and convey the sintered battery cells.

[0022] The beneficial effects of the present invention are as follows: When the laser sintering equipment for battery cells of the present invention is in use, first, the rotary drive assembly drives the carrier table mechanism to move to the loading station, and then the battery cells to be sintered are placed on the upper surface of the placement table at the area surrounded by each positioning clip. Then, the positioning drive member drives each positioning clip to move towards the positioning groove, pushing the battery cell into the positioning groove and clamping it. After the battery cell is located in the positioning groove, the adsorption drive member drives the adsorbent to move to the adsorption position, thereby adsorbing and fixing the battery cell in the positioning groove. Then, the carrier table mechanism is driven to move to the unloading station, and the laser sintering assembly sinters the battery cell. The positioning assembly can achieve precise positioning of the placement position of the battery cell. In addition, the cooperation of the positioning assembly and the adsorption assembly can better fix the battery cell in the positioning groove, thereby preventing the battery cell from moving and deviating from the positioning position during the process of moving from the loading station to the unloading station, ensuring the quality of the laser sintered product. Moreover, through the rotary drive assembly, a single power source drives the rotation of the carrier table mechanism and drives the adsorbent to move and adsorb the battery cell at the same time, without the need to additionally set a power source for driving the movement of the adsorbent, reducing the equipment cost. In addition, when there are dust impurities in the positioning groove, resulting in the battery cell not being able to fit tightly with the bottom wall of the positioning groove, the battery cell is horizontally lifted by the lifting assembly, so that a dust suction gap is formed between the bottom of the battery cell and the upper surface of the positioning groove. Then, the dust suction assembly sucks and removes the dust impurities in the dust suction gap, so that the battery cell can fit tightly with the bottom wall of the positioning groove, ensuring the positioning accuracy of the battery cell. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the laser sintering equipment for battery cells of the present invention.

[0024] Figure 2 is the three-dimensional structural schematic diagram of the placement table of the laser sintering equipment for battery cells of the present invention.

[0025] Figure 3 is the top view of the laser sintering equipment for battery cells of the present invention.

[0026] Figure 4 It is the front view of the adsorption component of the laser sintering equipment for battery chips of the present invention.

[0027] Figure 5 It is the schematic three-dimensional structure diagram of the adsorption component of the laser sintering equipment for battery chips of the present invention.

[0028] Figure 6 It is the schematic cross-sectional structure diagram of the carrier table mechanism of the laser sintering equipment for battery chips of the present invention.

[0029] Figure 7 It is Figure 6 the enlarged view of the structure at position A in

[0030] Figure 8 It is the top view of the mounting frame of the laser sintering equipment for battery chips of the present invention.

[0031] Figure 9 It is the schematic three-dimensional structure diagram of the carrier table mechanism of the laser sintering equipment for battery chips of the present invention with the placement table hidden.

[0032] Figure 10 It is the front view of the carrier table mechanism of the laser sintering equipment for battery chips of the present invention with the placement table hidden.

[0033] Figure 11 It is Figure 10 the enlarged view of the structure at position B in

[0034] Reference numerals:

[0035] 1. Mounting frame; 11. Mounting plate; 12. Leg; 13. First lifting slope; 14. Second lifting slope; 15. Third lifting slope; 16. Fourth lifting slope; 17. Lifting surface; 2. Laser sintering component; 21. Bracket; 31. Feeding conveyor belt; 41. Discharging conveyor belt; 5. Carrier table mechanism; 51. Placement table; 511. Positioning groove; 512. Installation groove; 513. Guide block; 514. Strip-shaped chute; 515. Lifting through hole; 52. Positioning clamp; 521. Positioning rod; 522. Connecting rod; 53. Positioning driving part; 531. First vertical rack; 532. First gear; 533. First horizontal rack; 534. First sliding rod; 535. Second sliding rod; 536. Strip-shaped slider; 541. Sealed adsorption part; 542. Second elastic part; 543. Sliding part; 5431. Sliding plate; 5432. Sliding column; 5433. Limiting boss; 5434. Extrusion part; 544. Spring guide post; 545. Limiting collar; 551. First elastic part; 56. Lifting component; 561. Second gear; 562. Second vertical rack; 563. Third vertical rack; 564. Lifting rod; 57. Dust suction port; 6. Installation table; 7. Rotary driving component; 71. Output shaft; 8. Battery chip. Detailed implementation manners

[0036] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] As Figures 1 to 11 shown, the laser sintering device for battery wafers of the present invention includes a mounting frame 1, a laser sintering assembly 2, a turntable device for carrying the battery wafer 8, a loading mechanism, and an unloading mechanism. The mounting frame 1 includes a mounting plate 11 and legs 12, and the mounting plate 11 is fixedly arranged at the top of the legs 12. The laser sintering assembly 2 and the turntable device are mounted on the mounting frame 1, and the loading mechanism and the unloading mechanism are respectively arranged on both sides of the mounting frame 1. The laser sintering assembly 2 is used for laser sintering the battery wafer 8 to be processed, the loading mechanism is used for placing the battery wafer 8 to be sintered on the turntable device, and the unloading mechanism is used for removing the sintered battery wafer 8 and conveying it away.

[0038] As Figure 1 shown, the loading mechanism includes a loading conveyor belt 31 and a loading robotic arm (not shown in the figure). The loading robotic arm is used for moving and placing the battery wafer 8 on the loading conveyor belt 31 onto the turntable device. The unloading mechanism includes an unloading conveyor belt 41 and an unloading robotic arm (not shown in the figure). The unloading robotic arm is used for removing the sintered battery wafer 8 and placing it on the unloading conveyor belt 41 for conveying away. The loading mechanism and the unloading mechanism are both prior arts, so their structures and working principles will not be described in detail.

[0039] As Figure 1 shown, the turntable device includes a carrying table mechanism 5, a mounting table 6, and a rotation driving assembly 7. The rotation driving assembly 7 is in transmission connection with the mounting table 6 to drive the mounting table 6 to rotate, and the rotation axis of the mounting table 6 is arranged in the vertical direction. Specifically, the rotation driving assembly 7 is a motor, the housing of the motor is fixed at the bottom of the mounting plate 11, a through hole is provided on the mounting plate 11, and the output shaft 71 of the motor passes through the through hole and extends upward, and the mounting table 6 is fixed on the output shaft 71 of the motor.

[0040] As Figure 1As shown in the figure, the carrier stage mechanism 5 is arranged on the mounting table 6. There are two sets of carrier stage mechanisms 5, and each set of carrier stage mechanisms 5 includes two carrier stage mechanisms 5. The two sets of carrier stage mechanisms 5 are symmetrically arranged about the rotation axis center of the mounting table 6. The carrier stage mechanism 5 has a loading station and an unloading station. The rotation of the mounting table 6 can drive the carrier stage mechanism 5 to switch between the loading station and the unloading station. When one set of carrier stage mechanisms 5 is at the loading station, the other set of carrier stage mechanisms 5 is at the unloading station. When the carrier stage mechanism 5 is at the loading station, the loading mechanism places the battery slice 8 to be sintered on the turntable device, and then the rotation drive assembly 7 drives the carrier stage mechanism 5 to rotate 180° and move to the unloading station. The laser sintering assembly 2 is arranged at the unloading station through the bracket 21. When the carrier stage mechanism 5 is at the unloading station, the laser sintering assembly 2 performs laser sintering on the battery slice 8 to be processed on the carrier stage mechanism 5 at the unloading station.

[0041] As Figures 1 - 3 shown in the figure, the carrier stage mechanism 5 includes a placement table 51, a positioning assembly, an adsorption assembly, a lifting assembly 56 and a dust suction assembly. The upper surface of the placement table 51 is provided with a positioning groove 511 for placing the battery slice 8, and the shape of the positioning groove 511 is adapted to the battery slice 8. After the battery slice 8 is placed at the positioning groove 511, the positioning assembly can push the battery slice 8 into the positioning groove 511 to achieve positioning. The bottom wall of the positioning groove 511 is provided with a mounting groove 512, and the adsorption assembly and the lifting assembly 56 are arranged in the mounting groove 512. When there are dust impurities in the positioning groove 511 and the battery slice 8 cannot be closely attached to the bottom wall of the positioning groove 511, the lifting assembly 56 can horizontally lift the battery slice 8, so that a dust suction gap is formed between the bottom of the battery slice 8 and the upper surface of the positioning groove 511, and then the dust suction assembly can suck and remove the dust impurities in the dust suction gap.

[0042] As Figure 1 shown in the figure, the positioning assembly includes a positioning clip 52 and a positioning drive 53. A plurality of positioning clips 52 are spaced around the positioning groove 511, and the positioning drive 53 can drive each positioning clip 52 to move towards the positioning groove 511 to push the battery slice 8 into the positioning groove 511 and clamp it. The adsorption assembly includes an adsorbent and an adsorption drive. The adsorbent has an initial position and an adsorption position, and the adsorption drive can drive the adsorbent to switch between the initial position and the adsorption position. When the adsorbent moves to the adsorption position, it can adsorb and fix the battery slice 8 in the positioning groove 511.

[0043] As Figures 3 - 5As shown in the figure, the adsorbing component includes a sealing and adsorbing part 541, a second elastic member 542, and a sliding part 543. The sealing and adsorbing part 541 is in vertical sliding and sealing fit with the side wall of the installation groove 512. The sliding part 543 is vertically slidably arranged on the sealing and adsorbing part 541, and the sliding part 543 is located below the sealing and adsorbing part 541. The sealing and adsorbing part 541 and the sliding part 543 are elastically connected by the second elastic member 542. Specifically, two vertical spring guide posts 544 are fixedly arranged at the bottom of the sealing and adsorbing part 541, and a limiting convex ring 545 is also fixedly arranged at the lower end of the spring guide post 544. The sliding part 543 includes a sliding plate 5431 and a vertically arranged sliding column 5432. The sliding plate 5431 is fixed to the upper end of the sliding column 5432, and a limiting boss 5433 is also arranged at a position near the lower end of the sliding column 5432. Two jacks slidably matched with the spring guide posts 544 are formed on the sliding plate 5431, and the sliding plate 5431 is sleeved on the spring guide posts 544 through the jacks. The second elastic member 542 is a spring. The second elastic member 542 is sleeved on the spring guide posts 544, and one end of the second elastic member 542 abuts against the limiting convex ring 545, and the other end of the second elastic member 542 abuts against the sliding plate 5431.

[0044] As Figures 3 - 7 shown in the figure, the adsorption driving member includes a first elastic member 551. One end of the first elastic member 551 is connected to the groove wall of the installation groove 512, and the other end of the first elastic member 551 is connected to the adsorbing component. Specifically, a guiding block 513 is fixedly arranged on the groove wall of the installation groove 512. A vertically extending jack is formed on the guiding block 513, and the sliding column 5432 passes through the jack and extends downward. The first elastic member 551 is a spring. The elastic coefficient of the second elastic member 542 is less than that of the first elastic member 551. The first elastic member 551 is sleeved on the sliding column 5432, and the lower end of the first elastic member 551 is fixedly connected to the limiting boss 5433, and the upper end of the first elastic member 551 is fixedly connected to the guiding block 513.

[0045] As Figure 1 and Figure 8As shown in the figure, an avoidance hole is formed in the mounting table 6, and the bottom of the sliding part 543 passes through the avoidance hole and extends downward to form an extrusion part 5434. Two lifting slopes are fixedly provided on the mounting plate 11 corresponding to the loading station. One of the lifting slopes is defined as the first lifting slope 13, and the other is the second lifting slope 14. The distances from the first lifting slope 13 and the second lifting slope 14 to the rotation axis of the mounting table 6 are different. Two lifting slopes are also fixedly provided on the mounting plate 11 corresponding to the unloading station. One of the lifting slopes is defined as the third lifting slope 15, and the other is the fourth lifting slope 16. The third lifting slope 15 and the first lifting slope 13 are symmetrically arranged about the rotation axis of the mounting table 6, and the fourth lifting slope 16 and the second lifting slope 14 are symmetrically arranged about the rotation axis of the mounting table 6. A lifting surface 17 is provided on the lifting slope. The lifting surface 17 is higher at the front and lower at the back in the rotation direction of the extrusion part 5434. The lifting slope is located below the mounting table 6 and on the rotation path of the extrusion part 5434.

[0046] When the adsorption part passes through the lifting surface 17, the extrusion part 5434 can move upward along the lifting surface 17 to the initial position and compress the first elastic part 551. When the adsorption part leaves the lifting surface 17, the first elastic part 551 can drive the sliding part 543 to move downward. During the process of a group of carrier mechanisms 5 moving to the loading station, the extrusion parts 5434 of the corresponding two carrier mechanisms 5 respectively move upward along the lifting surface 17 of a lifting slope to the initial position.

[0047] As Figure 1 、 Figure 2 、 Figures 6 - 10 shown in the figure, the positioning driving part 53 includes a first vertical rack 531, a first gear 532 and a first horizontal rack 533. The first vertical rack 531 is vertically slidably arranged in the installation groove 512, and the upper end of the first vertical rack 531 is fixedly connected to the bottom of the sliding plate 5431. The first gear 532 is rotatably arranged in the installation groove 512, and the first gear 532 meshes with the first vertical rack 531. The first horizontal rack 533 is slidably arranged in the installation groove 512 along the direction perpendicular to the side wall of the positioning groove 511, and the first horizontal rack 533 meshes with the first gear 532. Specifically, four positioning clamping parts 52 are provided. The four positioning clamping parts 52 are respectively located around the positioning groove 511 and are arranged in pairs opposite to each other. The positioning clamping part 52 includes two positioning rods 521 arranged at intervals in the vertical direction and a connecting rod 522 connecting the two positioning rods 521. The bottoms of the positioning rods 521 are fixed at both ends of the connecting rod 522. The connecting rod 522 is located in the installation groove 512. A strip-shaped sliding groove 514 is formed in the placing table 51. One end of the strip-shaped sliding groove 514 extends to the side wall of the positioning groove 511. The tops of the positioning rods 521 pass through the strip-shaped sliding groove 514 and extend upward, and the positioning rods 521 can move along the strip-shaped sliding groove 514.

[0048] As Figures 6 - 11As shown in the figure, there are two positioning driving members 53, and the two positioning driving members 53 are respectively connected to two relatively arranged positioning clamping members 52. Specifically, the first transverse rack 533 is fixed to the connecting rod 522 of the corresponding positioning clamping member 52, and the first transverse rack 533 is perpendicular to the plane where the two positioning rods 521 are located. At both ends of the connecting rod 522 fixed to the first transverse rack 533, first sliding rods 534 are respectively fixed, and the two first sliding rods 534 are arranged in a V shape. At both ends of the connecting rods 522 of the other two positioning clamping members 52, second sliding rods 535 are respectively fixed, and the two second sliding rods 535 are arranged in a V shape. The two first sliding rods 534 and the two second sliding rods 535 are coplanar, and each positioning rod 521 is perpendicular to the plane where the first sliding rod 534 and the second sliding rod 535 are located. The second sliding rod 535 and the adjacent first sliding rod 534 are in guiding sliding fit along their length directions. Specifically, a strip-shaped slider 536 extending along its length direction is fixed on the first sliding rod 534, and a strip-shaped sliding groove extending along its length direction is formed on the second sliding rod 535, and the strip-shaped slider 536 is slidably inserted into the strip-shaped sliding groove.

[0049] When the sliding part 543 moves downward, it can drive the two first vertical racks 531 to move downward, and then drive the two first gears 532 to rotate, and then drive the two first transverse racks 533 and the two positioning clamping members 52 connected thereto to move along the strip-shaped sliding groove 514 towards the positioning groove 511. When the two first transverse racks 533 approach each other, they can drive the other two positioning clamping members 52 to move towards the positioning groove 511 and approach each other.

[0050] As Figure 2 、 Figures 6 - 10 shown in the figure, there are two lifting assemblies 56, and they are respectively located near the two first transverse racks 533. The lifting assembly 56 includes a second gear 561, a second vertical rack 562, a third vertical rack 563 and a lifting rod 564. The second vertical rack 562 is fixed to the bottom of the sealing and adsorbing part 541, and the third vertical rack 563 is vertically slidably arranged in the installation groove 512. The lifting rod 564 is vertically slidably arranged in the installation groove 512, and a lifting through hole 515 for the lifting rod 564 to pass through when moving upward is formed on the bottom wall of the positioning groove 511. The bottom of the lifting rod 564 is fixed to the upper end of the third vertical rack 563, the second gear 561 is rotatably arranged in the installation groove 512, and the second gear 561 meshes with the third vertical rack 563. When the second vertical rack 562 moves downward, it can mesh with the second gear 561. When meshing, the second gear 561 is located between the second vertical rack 562 and the third vertical rack 563. When the second vertical rack 562 moves downward, it can drive the third vertical rack 563 and the lifting rod 564 to move upward. After the lifting rod 564 moves upward through the lifting through hole 515, it protrudes from the bottom wall of the positioning groove 511 to horizontally lift the battery cell 8.

[0051] When the carrier stage mechanism 5 leaves the loading station, the pressing part 5434 of the corresponding carrier stage mechanism 5 leaves the lifting surface 17, and the first elastic member 551 drives the sliding part 543 to move downward. At this time, the movement of the sealing and adsorbing part 541 is divided into two cases: Case 1, when the solar cell 8 is in close contact with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and compresses the second elastic member 542. The second elastic member 542 drives the sealing and adsorbing part 541 to move downward slightly. The downward movement of the sealing and adsorbing part 541 will cause a negative pressure in the chamber between the sealing and adsorbing part 541 and the bottom wall of the solar cell 8, thereby adsorbing the solar cell 8 in the positioning groove 511. It should be noted that due to the existence of the negative pressure in the chamber between the sealing and adsorbing part 541 and the bottom wall of the solar cell 8, the sealing and adsorbing part 541 can only move downward slightly. At this time, the second vertical rack 562 can also only move downward slightly and cannot mesh with the second gear 561, so it cannot drive the lifting rod 564 to move upward. Case 2, when there are dust impurities in the positioning groove 511 and the solar cell 8 cannot be in close contact with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and drives the second elastic member 542, the sealing and adsorbing part 541 and the second vertical rack 562 to move downward synchronously. At this time, the second elastic member 542 will not be compressed. The second vertical rack 562 moves downward and meshes with the second gear 561, thereby driving the third vertical rack 563 and the lifting rod 564 to move upward.

[0052] As Figure 2 shown, the dust collection assembly is disposed on the placement table 51 and can rotate with the placement table 51. The dust collection assembly includes a dust collection port 57, a suction fan (not shown in the figure), a controller, and a position sensor (not shown in the figure). The position sensor is disposed on the placement table 51 and is used to detect the position of the solar cell 8. When the solar cell 8 is lifted by the lifting rod 564 to a set height, the position sensor sends a start signal to the controller. After receiving the start signal, the controller controls the suction fan to start. When the solar cell 8 is lower than the set height, the position sensor sends a stop signal to the controller. After receiving the stop signal, the controller controls the suction fan to stop. Specifically, the suction fan and the position sensor are electrically connected to the controller respectively. The suction fan is communicated with the dust collection port 57 through a pipeline. The dust collection port 57 is fixedly disposed at the edge of the positioning groove 511, and the dust collection port 57 can suck and remove the dust impurities in the dust collection gap.

[0053] The implementation principle of the laser sintering device for battery wafers according to the embodiments of the present invention is as follows: When in use, first rotate the motor placement table 51 to the loading station. At this time, the suction attachment passes through the lifting surface 17, and the extrusion part 5434 moves upward along the lifting surface 17 to the initial position, causing the first elastic member 551 to be compressed. Then, the battery wafer 8 to be sintered is placed on the placement table 51 at the area surrounded by the positioning clamping members 52 through the loading robotic arm. Then, control the placement table 51 to rotate towards the unloading station. The suction attachment leaves the lifting surface 17, and the first elastic member 551 drives the sliding part 543 to move downward, driving the two first vertical racks 531 to move downward, and further driving the two first gears 532 to rotate, and then driving the two first horizontal racks 533 and the two positioning clamping members 52 connected thereto to move along the strip-shaped chute 514 towards the positioning groove 511. At the same time, the two first horizontal racks 533 move closer to each other, driving the other two positioning clamping members 52 to move towards the positioning groove 511 and move closer to each other. The four positioning clamping members 52 move towards the positioning groove 511, pushing the battery wafer 8 into the positioning groove 511 and clamping it. The sliding part 543 moves downward. At this time, the movement of the sealing and suction part 541 is divided into two cases: Case 1, when the battery wafer 8 is in close contact with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and compresses the second elastic member 542. The second elastic member 542 drives the sealing and suction part 541 to move downward slightly. The downward movement of the sealing and suction part 541 will cause a negative pressure in the chamber between the sealing and suction part 541 and the bottom wall of the battery wafer 8, thereby adsorbing the battery wafer 8 in the positioning groove 511. It should be noted that due to the existence of the negative pressure in the chamber between the sealing and suction part 541 and the bottom wall of the battery wafer 8, the sealing and suction part 541 can only move downward slightly. At this time, the second vertical rack 562 can also only move downward slightly and cannot engage with the second gear 561, so it cannot drive the lifting rod 564 to move upward. Case 2, when there are dust impurities in the positioning groove 511, causing the battery wafer 8 to not be in close contact with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and drives the second elastic member 542, the sealing and suction part 541, and the second vertical rack 562 to move downward synchronously. At this time, the second elastic member 542 will not be compressed. The second vertical rack 562 moves downward and engages with the second gear 561, thereby driving the third vertical rack 563 and the lifting rod 564 to move upward to horizontally lift the battery wafer 8. At this time, a dust suction gap is formed between the bottom of the battery wafer 8 and the upper surface of the positioning groove 511. Then, the suction fan is started, and the dust impurities in the dust suction gap are sucked and removed through the dust suction port 57, so that the battery wafer 8 can be in close contact with the bottom wall of the positioning groove 511, ensuring the positioning accuracy of the battery wafer 8.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A laser sintering device for a battery cell, comprising a laser sintering assembly and a turntable device for carrying the battery cell, the turntable device comprising a bearing platform mechanism, a mounting platform and a rotary drive assembly, the rotary drive assembly is connected to the mounting platform in a transmission manner to drive the mounting platform to rotate, the rotation axis of the mounting platform is arranged in a vertical direction, the bearing platform mechanism is arranged on the mounting platform, the bearing platform mechanism has a loading station and a unloading station, the rotation of the mounting platform can drive the bearing platform mechanism to switch between the loading station and the unloading station, the laser sintering assembly is arranged at the unloading station, and is characterized in that: The carrier table mechanism includes a placement table, a positioning component, and an adsorption component. The positioning component includes a positioning clip and a positioning driving member. A positioning groove for placing a battery cell is provided on the upper surface of the placement table. The shape of the positioning groove is adapted to the battery cell. A plurality of positioning clips are spaced around the periphery of the positioning groove. The positioning driving member can drive each positioning clip to move towards the positioning groove to push the battery cell into the positioning groove and clamp it. An installation groove is provided on the bottom wall of the positioning groove. The adsorption component is arranged in the installation groove. The adsorption component includes an adsorbent and an adsorption driving member. The adsorbent has an initial position and an adsorption position. The adsorption driving member can drive the adsorbent to switch between the initial position and the adsorption position. When the adsorbent moves to the adsorption position, it can adsorb and fix the battery cell in the positioning groove. It further includes a mounting frame. The mounting frame includes a mounting plate and legs. The adsorbent is in vertical sliding and sealing fit with the side wall of the installation groove. The adsorption driving member includes a first elastic member. One end of the first elastic member is connected to the groove wall of the installation groove, and the other end of the first elastic member is connected to the adsorbent. An avoidance hole is provided on the mounting table. The bottom of the adsorbent extends downward through the avoidance hole to form a pressing portion. A lifting slope is fixedly provided on the mounting plate corresponding to the loading station. There is a lifting surface on the lifting slope. The lifting surface is higher at the front and lower at the rear in the rotation direction of the pressing portion. The lifting slope is located below the mounting table and on the rotation path of the pressing portion. When the adsorbent passes through the lifting surface, it can move upward along the lifting surface to the initial position and compress the first elastic member. When the adsorbent leaves the lifting surface, the first elastic member can drive the adsorbent to move downward to the adsorption position.

2. The laser sintering device for battery wafers according to claim 1, wherein A lifting slope is also fixedly provided on the mounting plate corresponding to the unloading station.

3. The laser sintering device for battery chips according to claim 2, characterized in that, Two sets of the carrier table mechanisms are provided, and the two sets of carrier table mechanisms are symmetrically arranged about the rotation axis center of the mounting table. Two sets of lifting slopes are provided, and the two sets of lifting slopes are symmetrically arranged about the rotation axis center of the mounting table.

4. The laser sintering equipment for battery chips according to any one of claims 2 and 3, characterized in that, The positioning driving member includes a first vertical rack, a first gear, and a first horizontal rack. The first vertical rack is vertically slidably arranged in the installation groove. The upper end of the first vertical rack is fixedly connected to the bottom of the adsorbent. The first gear is rotatably arranged in the installation groove. The first gear meshes with the first vertical rack. The first horizontal rack is slidably arranged in the installation groove along a direction perpendicular to the side wall of the positioning groove. The first horizontal rack meshes with the first gear. The positioning clip is fixedly arranged on the first horizontal rack. When the first vertical rack moves downward, it can drive the positioning clip to move towards the positioning groove.

5. The laser sintering device for battery chips according to claim 4, characterized in that, Four positioning clips are provided. The four positioning clips are respectively located around the positioning groove and are arranged in pairs opposite to each other. Two positioning driving members are provided, and the two positioning driving members are respectively connected to two relatively arranged positioning clips. Each positioning driving member is used to drive the positioning clip it is connected to move towards the positioning groove. First sliding rods are respectively fixedly provided on both sides in the length direction of the first horizontal rack. The two first sliding rods are arranged in a V shape. Second sliding rods are respectively fixedly provided on both sides of the bottom of the other two positioning clips. The two second sliding rods are arranged in a V shape. The second sliding rods are in guiding sliding fit with the adjacent first sliding rods along their length directions. When the two first horizontal racks approach each other, they can drive the other two positioning clips to move towards the positioning groove and approach each other.

6. The laser sintering device for battery chips according to any one of claims 2 and 3, characterized in that, The adsorbing member includes a sealing and adsorbing portion, a second elastic member, and a sliding portion. The sealing and adsorbing portion is in vertical sliding and sealing fit with the side wall of the mounting groove. The sliding portion is vertically slidably disposed on the sealing and adsorbing portion and is located below the sealing and adsorbing portion. The bottom of the sliding portion forms the pressing portion. The sealing and adsorbing portion and the sliding portion are elastically connected by the second elastic member, and the elastic coefficient of the second elastic member is smaller than that of the first elastic member. A plurality of lifting assemblies for horizontally lifting the battery cell are further provided in the mounting groove. The lifting assembly includes a second gear, a second vertical rack, a third vertical rack, and a lifting rod. The second vertical rack is fixedly disposed at the bottom of the sealing and adsorbing portion. The third vertical rack is vertically slidably disposed in the mounting groove. The lifting rod is fixedly disposed at the upper end of the third vertical rack. The second gear is rotatably disposed in the mounting groove. The second gear meshes with the third vertical rack. When the second vertical rack moves downward, it can mesh with the second gear and drive the lifting rod to move upward and protrude from the bottom wall of the positioning groove.

7. The laser sintering device for battery wafers according to claim 6, characterized in that, The carrying platform mechanism further includes a dust suction assembly. The dust suction assembly is disposed on the placing platform and can rotate with the placing platform. The dust suction assembly includes a dust suction port and a suction fan. When the lifting assembly horizontally lifts the battery cell, a dust suction gap is formed between the bottom of the battery cell and the bottom wall of the positioning groove. The dust suction port can suck and remove the dust and impurities in the dust suction gap.

8. The laser sintering device for battery chips according to claim 7, wherein, The dust suction assembly further includes a controller and a position sensor. The position sensor is disposed on the placing platform and is used to detect the position of the battery cell. When the battery cell is lifted by the lifting rod to a set height, the position sensor sends a start signal to the controller. After receiving the start signal, the controller controls the suction fan to start. When the battery cell is lower than the set height, the position sensor sends a stop signal to the controller. After receiving the stop signal, the controller controls the suction fan to stop.

9. The laser sintering equipment for battery chips according to any one of claims 1 to 3, characterized in that It further includes a feeding mechanism and a discharging mechanism. The feeding mechanism is used to place the battery cell to be sintered in the positioning groove of the placing platform. The discharging mechanism is used to remove the sintered battery cell and convey it away.

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