Laser sintering equipment for battery piece

Abstract

The invention relates to the technical field of battery piece production and processing, and particularly discloses a battery piece laser sintering device which comprises a laser sintering assembly and a rotary table device, the rotary table device comprises a bearing table mechanism, a mounting table and a rotary driving assembly, and the bearing table mechanism comprises a placing table, a positioning assembly and an adsorption assembly. The positioning assembly comprises a positioning clamping piece and a positioning driving piece, a positioning groove is formed in the placing table, and the positioning driving piece can push the battery piece into the positioning groove; the adsorption assembly is arranged in the mounting groove, the adsorption assembly comprises an adsorption part and an adsorption driving part, and the adsorption part can adsorb and fix the battery piece in the positioning groove. Accurate positioning of the placing position of the battery piece can be achieved through the positioning assembly, in addition, the battery piece can be better fixed in the positioning groove through cooperation of the positioning assembly and the adsorption assembly, and therefore the battery piece is prevented from moving and deviating from the positioning position in the process of moving the battery piece from the feeding station to the discharging station, and the quality of a laser sintering product is guaranteed.

Description

Technical Field

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

[0002] The cell is the basic unit of solar cells, which can directly convert sunlight into electrical energy. Cells are mainly made of semiconductor materials such as silicon, among which monocrystalline silicon and polycrystalline silicon are the mainstream materials in solar cell products. The working principle of the cell is based on the photovoltaic effect and PN junction theory. When the solar cell is exposed to light, its internal charge distribution changes, thereby generating electromotive force and current. Specifically, a photo-generated voltage is generated at the PN junction, which promotes convection of electrons and holes. The two ends are connected through external electrodes to form a closed loop, which can achieve the generation of current. The production process of the cell includes laser-assisted sintering, which is a technology that uses the characteristics of lasers to repair under-sintered photovoltaic cells. It uses high-intensity lasers to irradiate the cell, excite charge carriers, and generate local large currents under the condition of applying a certain deflection voltage at the same time, thereby inducing mutual diffusion of silver paste and silicon, significantly reducing the contact resistance between metal and semiconductor.

[0003] The Chinese patent with the authorization announcement number CN222621505U discloses a laser induced sintering processing device, including a carrying device for processing battery cells, a laser processing module and an electric input module arranged at processing stations B and C, and a loading and unloading mechanism for transporting battery cells. 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 carrying device includes a turntable module, the turntable module includes a rotary drive mechanism, a support frame, and a plurality of carrying platforms for carrying battery cells, the driving shaft of the rotary drive mechanism is vertically arranged and connected to the center of the support frame, and the plurality of carrying platforms are installed on the support frame and the distance to the center of the support frame is equal. When the processing device is working, the battery cell is placed on the carrying platform through the loading and unloading mechanism, and then the rotary drive mechanism drives the carrying platform to rotate, so that the battery cell moves to the processing station, and then the laser processing module emits a laser to process the battery cell. After the processing is completed, the unloading and unloading mechanism removes the battery cell from the carrying platform and transports it away.

[0004] The problems existing in the use of the above-mentioned laser induced sintering processing device are: when the loading and transporting mechanism transports the battery cells to be processed to the supporting platform, the battery cells may be inaccurately positioned; and the battery cells may also move in the process of the rotating drive mechanism driving the supporting platform to rotate, further resulting in inaccurate positioning of the battery cells, thereby affecting the quality of 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; 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.

[0007] 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.

[0008] Preferably, it also includes a mounting frame, the mounting frame includes a mounting plate and support legs, the adsorption member slides up and down and seals with the side walls of the mounting 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 mounting groove, and the other end of the first elastic member is connected to the adsorption member, an avoidance hole is opened on the mounting platform, the bottom of the adsorption member extends downward through the avoidance hole to form an extrusion portion, a lifting slope is fixedly provided at the mounting plate corresponding to the loading station, a lifting surface is provided on the lifting slope, the lifting surface is high in front and low in the back in the rotation direction of the extrusion portion, the lifting slope is located below the mounting platform, and the lifting slope is located on the rotation path of the extrusion portion, when the adsorption member passes through the lifting surface, it can move upward along the lifting surface to the initial position and compress the first elastic member, and when the adsorption member leaves the lifting surface, the first elastic member can drive the adsorption member to move downward to the adsorption position.

[0009] The beneficial effect is that: it is achieved that a power source of the rotating drive assembly is used to simultaneously drive the support platform mechanism to rotate and drive the adsorption member to move to adsorb the battery sheet, without the need to set up an additional power source to drive the adsorption member to move, thereby reducing equipment costs.

[0010] Preferably, a lifting slope is also fixedly provided on the mounting plate at a position corresponding to the unloading station.

[0011] The beneficial effect is that when the supporting platform mechanism moves to the unloading station, the adsorption part moves upward along the lifting surface to the initial position, releasing the adsorption and fixation of the battery cell. At the same time, the positioning drive part drives each positioning clamp away from the positioning groove, and no longer clamps the battery cell that is already in the positioning groove, thereby facilitating the removal of the battery cell after the sintering of the battery cell is completed.

[0012] Preferably, two groups of the bearing platform mechanisms are provided, and the two groups of bearing platform mechanisms are symmetrically arranged about the rotation axis of the mounting platform, and two groups of lifting slopes are provided, and the two groups of lifting slopes are symmetrically arranged about the rotation axis of the mounting platform.

[0013] The beneficial effect is that when one group of the carrying platform mechanisms is in the loading station, the other group of the carrying platform mechanisms is in the unloading station, so that the battery cells can be loaded and unloaded at the same time, thereby improving work efficiency.

[0014] Preferably, the positioning drive member includes a first vertical rack, a first gear and a first transverse rack. The first vertical rack is vertically slidably arranged in the mounting groove. The upper end of the first vertical rack is fixedly connected to the bottom of the adsorption member. The first gear is rotatably arranged in the mounting groove. The first gear is meshed with the first vertical rack. The first transverse rack is slidably arranged in the mounting groove along a direction perpendicular to the side wall of the positioning groove. The first transverse rack is meshed with the first gear. The positioning clamp is fixed on the first transverse rack. When the first vertical rack moves downward, it can drive the positioning clamp to move toward the positioning groove.

[0015] Preferably, four positioning clamps are provided, and the four positioning clamps are respectively located around the positioning groove and arranged opposite to each other in pairs. Two positioning drive members are provided, and the two positioning drive members are respectively connected to the two positioning clamps arranged opposite to each other, and each positioning drive member is used to drive the positioning clamp connected to it to move toward the positioning groove, and first sliding bars are respectively fixed on both sides of the length direction of the first transverse rack, and the two first sliding bars are arranged in an eight-shape, and second sliding bars are respectively fixed on both sides of the bottom of the remaining two positioning clamps, and the two second sliding bars are arranged in an eight-shape. The second sliding bar is guided and slidably matched with the adjacent first sliding bar along the length direction thereof, and when the two first transverse racks approach each other, the remaining two positioning clamps can be driven to move toward the positioning groove and approach each other.

[0016] Preferably, the adsorption member includes a sealing adsorption part, a second elastic member and a sliding part, the sealing adsorption part slides up and down and seals with the side wall of the mounting groove, the sliding part is vertically slidably arranged on the sealing adsorption part, and the sliding part is located below the sealing adsorption part, the bottom of the sliding part forms the extrusion part, the sealing adsorption part and the sliding part 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 components for horizontally lifting the battery cell are also provided in the mounting groove, the lifting component includes a second gear, a second vertical rack, a third vertical rack and a lifting rod, the second vertical rack is fixed at the bottom of the sealing adsorption part, the third vertical rack is vertically slidably arranged in the mounting groove, the lifting rod is fixed at the upper end of the third vertical rack, the second gear is rotatably arranged in the mounting groove, the second gear is meshed with the third vertical rack, the second vertical rack moves downward to mesh with the second gear and drives the lifting rod to move upward to protrude from the bottom wall of the positioning groove.

[0017] Preferably, the supporting platform mechanism also includes a dust suction component, which is arranged on the placing platform and can rotate with the placing platform. The dust suction component includes a dust suction port and an exhaust fan. When the lifting assembly lifts the battery cell horizontally, 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 away dust and impurities in the dust suction gap.

[0018] The beneficial effect is that when there are dust impurities in the positioning groove that cause the battery cell to be unable to fit tightly with the bottom wall of the positioning groove, the battery cell is lifted horizontally by the lifting component, so that a dust suction gap is formed between the bottom of the battery cell and the upper surface of the positioning groove, and then the dust suction component sucks away the dust impurities in the dust suction gap, so that the battery cell and the bottom wall of the positioning groove can fit tightly, ensuring the positioning accuracy of the battery cell.

[0019] Preferably, the dust collection assembly also includes a controller and a position sensor. The position sensor is arranged on the placement table, and the position sensor 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, and the controller controls the exhaust fan to start after receiving the start signal. When the battery cell is lower than the set height, the position sensor sends a shutdown signal to the controller, and the controller controls the exhaust fan to shut down after receiving the shutdown signal.

[0020] Preferably, it also includes a loading mechanism and a unloading mechanism, wherein 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 the sintered battery cells and transport them away.

[0021] The beneficial effects of the present invention are as follows: when the laser sintering equipment of the battery cell of the present invention is used, the rotating drive component first drives the bearing platform mechanism to move to the loading station, and then the battery cell to be sintered is placed on the upper surface of the placing platform in the area surrounded by each positioning clamp, and then the positioning drive drives each positioning clamp 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 bearing platform mechanism is driven to move to the unloading station, and the laser sintering component sinters the battery cell. The positioning component can realize the precise positioning of the battery cell placement position. In addition, the positioning component and the adsorption component 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. Moreover, the rotating drive component has a power source that simultaneously drives the bearing platform mechanism to rotate and drives the adsorption member to move and adsorb the battery cell, and there is no need to set up an additional power source to drive the adsorption member to move, thereby reducing the equipment cost. In addition, when there are dust impurities in the positioning groove that make it impossible for the battery cell to fit tightly against the bottom wall of the positioning groove, the battery cell is lifted horizontally by the lifting assembly to form a dust suction gap between the bottom of the battery cell and the upper surface of the positioning groove. The dust suction assembly then sucks away the dust impurities in the dust suction gap, thereby allowing the battery cell to fit tightly against the bottom wall of the positioning groove, thereby ensuring the positioning accuracy of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the laser sintering equipment for the battery cell of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of a placement table of the laser sintering equipment for the battery cell of the present invention.

[0024] Figure 3 It is a top view of the laser sintering equipment for the battery cell of the present invention.

[0025] Figure 4 It is a front view of the adsorption component of the laser sintering equipment of the battery cell of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the adsorption component of the laser sintering equipment of the battery cell of the present invention.

[0027] Figure 6 It is a schematic cross-sectional structure diagram of a support platform mechanism of a laser sintering device for a battery cell of the present invention.

[0028] Figure 7 yes Figure 6 A magnified view of the structure in the middle.

[0029] Figure 8 It is a top view of the mounting frame of the laser sintering equipment for the battery cell of the present invention.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the laser sintering equipment for the battery cell of the present invention, with the supporting platform mechanism hidden behind the placing platform.

[0031] Fig.10 This is a front view of the laser sintering device for the battery cell of the present invention with the support platform mechanism hidden behind the placement platform.

[0032] Fig.11 yes Fig.10 A magnified view of the structure at B in the middle.

[0033] Reference numerals: 1. Mounting frame; 11. Mounting plate; 12. Legs; 13. First lifting slope; 14. Second lifting slope; 15. Third lifting slope; 16. Fourth lifting slope; 17. Lifting surface; 2. Laser sintering assembly; 21. Bracket; 31. Loading conveyor belt; 41. Unloading conveyor belt; 5. Carrying platform mechanism; 51. Placement platform; 511. Positioning groove; 512. Mounting groove; 513. Guide block; 514. Strip slide; 515. Lifting perforation; 52. Positioning clamp; 521. Positioning rod; 522. Connecting rod; 53. Positioning drive member; 531. First vertical rack; 532. First gear; 533. The first horizontal rack; 534, the first sliding bar; 535, the second sliding bar; 536, the strip slider; 541, the sealing adsorption part; 542, the second elastic member; 543, the sliding part; 5431, the sliding plate; 5432, the sliding column; 5433, the limiting boss; 5434, the extrusion part; 544, the spring guide column; 545, the limiting convex ring; 551, the first elastic member; 56, the lifting assembly; 561, the second gear; 562, the second vertical rack; 563, the third vertical rack; 564, the lifting rod; 57, the suction port; 6, the mounting table; 7, the rotating drive assembly; 71, the output shaft; 8, the battery cell. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 11 As shown, the laser sintering equipment for the battery cell of the present invention comprises a mounting frame 1, a laser sintering assembly 2, a turntable device for carrying the battery cell 8, a loading mechanism and a unloading mechanism. The mounting frame 1 comprises a mounting plate 11 and a leg 12, and the mounting plate 11 is fixedly arranged on the top of the leg 12. The laser sintering assembly 2 and the turntable device are installed 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 to laser sinter the battery cell 8 to be processed, the loading mechanism is used to place the battery cell 8 to be sintered on the turntable device, and the unloading mechanism is used to remove and transport the sintered battery cell 8.

[0036] like Figure 1 As shown, the loading mechanism includes a loading conveyor belt 31 and a loading robot arm (not shown in the figure), and the loading robot arm is used to move the battery cell 8 on the loading conveyor belt 31 and place it on the turntable device. The unloading mechanism includes an unloading conveyor belt 41 and an unloading robot arm (not shown in the figure), and the unloading robot arm is used to remove the sintered battery cell 8 and place it on the unloading conveyor belt 41 for transportation. Both the loading mechanism and the unloading mechanism are prior arts, so their structures and working principles are not described in detail.

[0037] like Figure 1 As shown, the turntable device includes a carrier platform mechanism 5, a mounting platform 6 and a rotation drive assembly 7. The rotation drive assembly 7 is connected to the mounting platform 6 to drive the mounting platform 6 to rotate, and the rotation axis of the mounting platform 6 is arranged in a vertical direction. Specifically, the rotation drive assembly 7 is a motor, the housing of the motor is fixed to the bottom of the mounting plate 11, the mounting plate 11 is provided with a through hole, the output shaft 71 of the motor passes through the through hole and extends upward, and the mounting platform 6 is fixed on the output shaft 71 of the motor.

[0038] like Figure 1As shown, the carrier mechanism 5 is arranged on the mounting table 6, and the carrier mechanism 5 is provided with two groups, each group of the carrier mechanism 5 includes two carrier mechanisms 5, and the two groups of the carrier mechanisms 5 are arranged symmetrically about the rotation axis of the mounting table 6. The carrier mechanism 5 has a loading station and a unloading station, and the mounting table 6 can rotate to bring the carrier mechanism 5 to switch between the loading station and the unloading station. When one group of the carrier mechanism 5 is in the loading station, the other group of the carrier mechanism 5 is in the unloading station. When the carrier mechanism 5 is in the loading station, the loading mechanism places the battery cell 8 to be sintered on the turntable device, and then the rotating drive assembly 7 drives the carrier 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 mechanism 5 is in the unloading station, the laser sintering assembly 2 performs laser sintering on the battery cell 8 to be processed on the carrier mechanism 5 in the unloading station.

[0039] like Figure 1-Figure 3 As shown, the support platform mechanism 5 includes a placement platform 51, a positioning assembly, an adsorption assembly, a lifting assembly 56 and a dust collection assembly. The upper surface of the placement platform 51 is provided with a positioning groove 511 for placing the battery cell 8, and the shape of the positioning groove 511 is adapted to the battery cell 8. After the battery cell 8 is placed in the positioning groove 511, the positioning assembly can push the battery cell 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, which makes it impossible for the battery cell 8 to fit tightly with the bottom wall of the positioning groove 511, the lifting assembly 56 can lift the battery cell 8 horizontally, so that a dust collection gap is formed between the bottom of the battery cell 8 and the upper surface of the positioning groove 511, and then the dust collection assembly can suck and remove the dust impurities in the dust collection gap.

[0040] like Figure 1 As shown, the positioning assembly includes a positioning clamp 52 and a positioning drive 53. A plurality of positioning clamps 52 are provided at intervals on the periphery of the positioning groove 511, and the positioning drive 53 can drive each positioning clamp 52 to move toward the positioning groove 511 to push the battery cell 8 into the positioning groove 511 and clamp it. The adsorption assembly includes an adsorption member and an adsorption drive member, and the adsorption member has an initial position and an adsorption position. The adsorption drive member can drive the adsorption member to switch between the initial position and the adsorption position. When the adsorption member moves to the adsorption position, the battery cell 8 can be adsorbed and fixed in the positioning groove 511.

[0041] like Figure 3-Figure 5As shown, the adsorption member includes a sealing adsorption portion 541, a second elastic member 542 and a sliding portion 543. The sealing adsorption portion 541 slides up and down with the side wall of the mounting groove 512 and seals together. The sliding portion 543 is vertically slidably arranged on the sealing adsorption portion 541, and the sliding portion 543 is located below the sealing adsorption portion 541. The sealing adsorption portion 541 and the sliding portion 543 are elastically connected through the second elastic member 542. Specifically, two vertical spring guide columns 544 are fixedly arranged at the bottom of the sealing adsorption portion 541, and a limiting convex ring 545 is also fixedly arranged at the lower end of the spring guide column 544. The sliding portion 543 includes a sliding plate 5431 and a vertically arranged sliding column 5432. The sliding plate 5431 is fixed at the upper end of the sliding column 5432, and a limiting boss 5433 is also arranged near the lower end of the sliding column 5432. The sliding plate 5431 is provided with two insertion holes that are slidably matched with the spring guide pillars 544, and the sliding plate 5431 is sleeved on the spring guide pillars 544 through the insertion holes. The second elastic member 542 is a spring, and the second elastic member 542 is sleeved on the spring guide pillars 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.

[0042] like Figure 3-Figure 7 As shown, the adsorption drive member includes a first elastic member 551, one end of the first elastic member 551 is connected to the groove wall of the mounting groove 512, and the other end of the first elastic member 551 is connected to the adsorption member. Specifically, a guide block 513 is fixedly provided on the groove wall of the mounting groove 512, and a vertically extending plug hole is provided on the guide block 513, and the sliding column 5432 passes through the plug hole and extends downward. The first elastic member 551 is a spring, and the elastic coefficient of the second elastic member 542 is smaller than that of the first elastic member 551. The first elastic member 551 is mounted 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 guide block 513.

[0043] like Figure 1 and Figure 8As shown, an avoidance hole is provided on the mounting platform 6, and the bottom of the sliding part 543 extends downward through the avoidance hole to form an extrusion part 5434. Two lifting slopes are fixedly provided on the mounting plate 11 at the corresponding loading station, one of which is defined as the first lifting slope 13, and the other is defined as the second lifting slope 14. The first lifting slope 13 and the second lifting slope 14 are at different distances from the rotation axis of the mounting platform 6. Two lifting slopes are also fixedly provided on the mounting plate 11 at the corresponding unloading station, one of which is defined as the third lifting slope 15, and the other is defined as the fourth lifting slope 16. The third lifting slope 15 is symmetrically arranged with the first lifting slope 13 about the rotation axis of the mounting platform 6, and the fourth lifting slope 16 is symmetrically arranged with the second lifting slope 14 about the rotation axis of the mounting platform 6. A lifting surface 17 is provided on the lifting slope, and the lifting surface 17 is high in front and low in the rotation direction of the extrusion part 5434. The lifting slope is located below the mounting platform 6, and the lifting slope is located on the rotation path of the extrusion part 5434.

[0044] When the adsorbent 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 adsorbent leaves the lifting surface 17, the first elastic part 551 can drive the sliding part 543 to move downward. When a set of carrier mechanisms 5 moves to the loading station, the extrusion parts 5434 of the corresponding two carrier mechanisms 5 move upward along the lifting surface 17 of a lifting slope to the initial position.

[0045] like Figure 1 , Figure 2 , Figure 6-Figure 10 As shown, the positioning drive member 53 includes a first vertical rack 531, a first gear 532 and a first transverse rack 533. The first vertical rack 531 is vertically slidably arranged in the mounting groove 512, and the upper end of the first vertical rack 531 is fixed to the bottom of the sliding plate 5431. The first gear 532 is rotatably arranged in the mounting groove 512, and the first gear 532 is meshed with the first vertical rack 531. The first transverse rack 533 is slidably arranged in the mounting groove 512 along a direction perpendicular to the side wall of the positioning groove 511, and the first transverse rack 533 is meshed with the first gear 532. Specifically, four positioning clamps 52 are provided, and the four positioning clamps 52 are respectively located around the positioning groove 511 and are arranged opposite to each other in pairs. The positioning clamp 52 includes two positioning rods 521 arranged vertically at intervals and a connecting rod 522 connecting the two positioning rods 521, and the bottom of the positioning rod 521 is fixed to the two ends of the connecting rod 522. The connecting rod 522 is located in the installation groove 512, and a strip slide groove 514 is opened on the placement table 51. One end of the strip slide groove 514 extends to the side wall of the positioning groove 511. The top of the positioning rod 521 passes through the strip slide groove 514 and extends upward, and the positioning rod 521 can move along the strip slide groove 514.

[0046] like Figure 6-Figure 11As shown, two positioning driving members 53 are provided, and the two positioning driving members 53 are respectively connected to the two positioning clamps 52 arranged oppositely. Specifically, the first transverse rack 533 is fixed to the connecting rod 522 of the corresponding positioning clamp 52, and the first transverse rack 533 is perpendicular to the plane where the two positioning rods 521 are located. The two ends of the connecting rod 522 fixed to the first transverse rack 533 are respectively fixed with a first slide bar 534, and the two first slide bars 534 are arranged in an eight-shaped shape. The two ends of the connecting rod 522 of the remaining two positioning clamps 52 are respectively fixed with a second slide bar 535, and the two second slide bars 535 are arranged in an eight-shaped shape. The two first slide bars 534 are coplanar with the two second slide bars 535, and each positioning rod 521 is perpendicular to the plane where the first slide bar 534 and the second slide bar 535 are located, and the second slide bar 535 is guided and slidably matched with the adjacent first slide bar 534 along its length direction. Specifically, a strip-shaped sliding block 536 extending along the length direction thereof is fixedly provided on the first sliding rod 534 , and a strip-shaped sliding groove extending along the length direction thereof is provided on the second sliding rod 535 , and the strip-shaped sliding block 536 is slidably inserted in the strip-shaped sliding groove.

[0047] When the sliding portion 543 moves downward, it can drive the two first vertical racks 531 to move downward, thereby driving the two first gears 532 to rotate, and then driving the two first horizontal racks 533 and the two positioning clamps 52 connected thereto to move along the strip-shaped slide groove 514 toward the positioning groove 511. When the two first horizontal racks 533 approach each other, they can drive the remaining two positioning clamps 52 to move toward the positioning groove 511 and approach each other.

[0048] like Figure 2 , Figure 6-Figure 10 As shown, two lifting assemblies 56 are provided, and are respectively located near the two first horizontal 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 fixedly arranged at the bottom of the sealing adsorption portion 541, and the third vertical rack 563 is vertically slidably arranged in the mounting groove 512. The lifting rod 564 is vertically slidably arranged in the mounting groove 512, and a lifting through hole 515 is provided on the bottom wall of the positioning groove 511 for the lifting rod 564 to pass through when moving upward. The bottom of the lifting rod 564 is fixedly arranged at the upper end of the third vertical rack 563, and the second gear 561 is rotatably arranged in the mounting groove 512, and the second gear 561 is meshed with the third vertical rack 563. The second vertical rack 562 moves downward and can engage with the second gear 561. When engaged, the second gear 561 is located between the second vertical rack 562 and the third vertical rack 563. The second vertical rack 562 moves downward and can drive the third vertical rack 563 and the lifting rod 564 to move upward. After the lifting rod 564 moves upward and passes through the lifting perforation 515, it protrudes from the bottom wall of the positioning groove 511 to horizontally lift the battery cell 8.

[0049] When the carrier mechanism 5 leaves the loading station, the extrusion portion 5434 of the corresponding carrier mechanism 5 leaves the lifting surface 17, and the first elastic member 551 drives the sliding portion 543 to move downward. At this time, the movement of the sealing adsorption portion 541 is divided into two situations: In the first situation, when the battery cell 8 is tightly fitted with the bottom wall of the positioning groove 511, the sliding portion 543 moves downward and compresses the second elastic member 542, and the second elastic member 542 drives the sealing adsorption portion 541 to move slightly downward. The downward movement of the sealing adsorption portion 541 will cause negative pressure to be generated in the chamber between the sealing adsorption portion 541 and the bottom wall of the battery cell 8, thereby adsorbing the battery cell 8 in the positioning groove 511. It should be noted that due to the existence of negative pressure in the chamber between the sealing adsorption portion 541 and the bottom wall of the battery cell 8, the sealing adsorption portion 541 can only move slightly downward. At this time, the second vertical rack 562 can also only move slightly downward and cannot engage with the second gear 561, so it cannot drive the lifting rod 564 to move upward. In the second case, when there are dust impurities in the positioning groove 511, which makes the battery cell 8 unable to fit tightly with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and drives the second elastic member 542, the sealing adsorption part 541 and the second vertical rack 562 to move downward synchronously. At this time, the second elastic member 542 will not be compressed, and 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.

[0050] like Figure 2 As shown, the dust collection component is arranged on the placement table 51 and can rotate with the placement table 51. The dust collection component includes a dust collection port 57, an exhaust fan (not shown in the figure), a controller and a position sensor (not shown in the figure). The position sensor is arranged on the placement table 51, and the position sensor is used to detect the position of the battery cell 8; when the battery cell 8 is lifted to a set height by the lifting rod 564, the position sensor sends a start signal to the controller, and the controller controls the exhaust fan to start after receiving the start signal. When the battery cell 8 is lower than the set height, the position sensor sends a shutdown signal to the controller, and the controller controls the exhaust fan to shut down after receiving the shutdown signal. Specifically, the exhaust fan and the position sensor are electrically connected to the controller respectively, and the exhaust fan is connected to the dust collection port 57 through a pipeline. The dust collection port 57 is fixedly arranged at the edge of the positioning groove 511, and the dust collection port 57 can suck and remove dust impurities in the dust collection gap.

[0051] The implementation principle of the laser sintering equipment of the battery cell of the embodiment of the present invention is as follows: when in use, the placement table 51 is first rotated to the loading station by the motor, at which time the adsorbent passes through the lifting surface 17, the extrusion portion 5434 moves upward along the lifting surface 17 to the initial position and compresses the first elastic member 551, and then the battery cell 8 to be sintered is placed on the placement table 51 in the area surrounded by the positioning clamps 52 through the loading robot arm, and then the placement table 51 is controlled to rotate toward the unloading station, the adsorbent leaves the lifting surface 17, and the first elastic member 551 drives the slide The moving part 543 moves downward, and drives the two first vertical racks 531 to move downward, and then drives the two first gears 532 to rotate, and then drives the two first horizontal racks 533 and the two positioning clamps 52 connected thereto to move along the strip-shaped slide groove 514 toward the positioning groove 511. At the same time, the two first horizontal racks 533 approach each other, driving the remaining two positioning clamps 52 to move toward the positioning groove 511 and approach each other. The four positioning clamps 52 move toward the positioning groove 511, pushing the battery cell 8 into the positioning groove 511 and clamping it. The sliding part 543 moves downward, and at this time, the movement of the sealing adsorption part 541 is divided into two situations: In the first situation, when the battery cell 8 is tightly fitted with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and compresses the second elastic member 542, and the second elastic member 542 drives the sealing adsorption part 541 to move slightly downward. The downward movement of the sealing adsorption part 541 will cause negative pressure to be generated in the chamber between the sealing adsorption part 541 and the bottom wall of the battery cell 8, thereby adsorbing the battery cell 8 in the positioning groove 511. It should be noted that due to the existence of negative pressure in the chamber between the sealing adsorption part 541 and the bottom wall of the battery cell 8, the sealing adsorption part 541 can only move slightly downward. At this time, the second vertical rack 562 can also only move slightly downward and cannot engage with the second gear 561, thereby failing to drive the lifting rod 564 to move upward. In the second case, when there are dust impurities in the positioning groove 511, which makes it impossible for the battery cell 8 to fit tightly with the bottom wall of the positioning groove 511, the sliding part 543 moves downward and drives the second elastic member 542, the sealing adsorption part 541 and the second vertical rack 562 to move downward synchronously. At this time, the second elastic member 542 will not be compressed, and 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 lift the battery cell 8 horizontally. At this time, a dust suction gap is formed between the bottom of the battery cell 8 and the upper surface of the positioning groove 511, and then the exhaust fan is started to suck away the dust impurities in the dust suction gap through the dust suction port 57, so that the battery cell 8 can fit tightly with the bottom wall of the positioning groove 511, thereby ensuring the positioning accuracy of the battery cell 8.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary 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 mechanism includes a placement table, a positioning assembly and an adsorption assembly. The positioning assembly includes a positioning clamp and a positioning drive. The upper surface of the placement table 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 provided at intervals on the periphery of the positioning groove. The positioning drive can drive each positioning clamp to move toward the positioning groove to push the battery cell into the positioning groove and clamp it. 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.

2. The laser sintering equipment for a cell according to claim 1, characterized in that: The suction member is connected to the side wall of the mounting groove and slides up and down and seals 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 member. An avoidance hole is opened on the mounting platform, and the bottom of the suction member extends downward through the avoidance hole to form an extrusion portion. A lifting slope is fixedly provided at the corresponding loading station on the mounting plate, and a lifting surface is provided on the lifting slope. The lifting surface is high in front and low in the back in the rotation direction of the extrusion portion. The lifting slope is located below the mounting platform, and the lifting slope is located on the rotation path of the extrusion portion. When the suction member 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 member leaves the lifting surface, the first elastic member can drive the suction member to move downward to the suction position.

3. The laser sintering equipment for a cell according to claim 2, characterized in that: A lifting slope is also fixedly provided on the mounting plate at the position corresponding to the unloading station.

4. The laser sintering equipment for a cell according to claim 3, characterized in that: The bearing platform mechanism is provided with two groups, and the two groups of bearing platform mechanism are symmetrically arranged about the rotation axis center of the mounting platform; the lifting slope is provided with two groups, and the two groups of lifting slope are symmetrically arranged about the rotation axis center of the mounting platform.

5. The laser sintering equipment for a cell according to any one of claims 2 to 4, characterized in that: The positioning drive component includes a first vertical rack, a first gear and a first transverse 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 adsorption component. The first gear is rotatably arranged in the installation groove. The first gear is meshed with the first vertical rack. The first transverse rack is slidably arranged in the installation groove along a direction perpendicular to the side wall of the positioning groove. The first transverse rack is meshed with the first gear. The positioning clamp is fixed on the first transverse rack. When the first vertical rack moves downward, it can drive the positioning clamp to move toward the positioning groove.

6. The laser sintering equipment for a cell according to claim 5, characterized in that: The four positioning clamps are respectively located around the positioning groove and are arranged opposite to each other in pairs. Two positioning drive members are provided, and the two positioning drive members are respectively connected to the two positioning clamps arranged opposite to each other. Each positioning drive member is used to drive the positioning clamp connected to it to move toward the positioning groove. First sliding bars are respectively fixed on both sides of the length direction of the first transverse rack, and the two first sliding bars are arranged in an eight-shaped shape. Second sliding bars are respectively fixed on both sides of the bottom of the remaining two positioning clamps, and the two second sliding bars are arranged in an eight-shaped shape. The second sliding bar is guided and slidably matched with the adjacent first sliding bar along the length direction thereof. When the two first transverse racks approach each other, the remaining two positioning clamps can be driven to move toward the positioning groove and approach each other.

7. The laser sintering equipment for a cell according to any one of claims 2 to 4, characterized in that: The adsorption component includes a sealing adsorption part, a second elastic part and a sliding part. The sealing adsorption part slides up and down and seals with the side wall of the mounting groove. The sliding part is vertically slidably arranged on the sealing adsorption part, and the sliding part is located below the sealing adsorption part. The bottom of the sliding part forms the extrusion part. The sealing adsorption part and the sliding part are elastically connected by the second elastic part. The elastic coefficient of the second elastic part is smaller than that of the first elastic part. A plurality of lifting components for horizontally lifting the battery cell are also provided in the mounting groove. The lifting components include a second gear, a second vertical rack, a third vertical rack and a lifting rod. The second vertical rack is fixed at the bottom of the sealing adsorption part, and the third vertical rack is vertically slidably arranged in the mounting groove. The lifting rod is fixed at the upper end of the third vertical rack. The second gear is rotatably arranged in the mounting groove. The second gear is meshed with the third vertical rack. The second vertical rack moves downward to mesh with the second gear and drive the lifting rod to move upward to protrude from the bottom wall of the positioning groove.

8. The laser sintering equipment for a cell according to claim 7, characterized in that: The supporting platform mechanism also includes a dust suction component, which is arranged on the placing platform and can rotate with the placing platform. The dust suction component includes a dust suction port and an exhaust fan. When the lifting component lifts the battery cell horizontally, 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 dust and impurities in the dust suction gap.

9. The laser sintering equipment for a cell according to claim 8, characterized in that: The dust suction assembly also includes a controller and a position sensor. The position sensor is arranged on the placement table, and the position sensor 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, and the controller controls the exhaust fan to start after receiving the start signal. When the battery cell is lower than the set height, the position sensor sends a shutdown signal to the controller, and the controller controls the exhaust fan to shut down after receiving the shutdown signal.

10. The laser sintering equipment for a cell according to any one of claims 1 to 4, characterized in that: It also includes a loading mechanism and a 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 the sintered battery cells and transport them away.

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