Anti-displacement cell detector for lithium battery production

Abstract

The utility model discloses an anti-displacement battery cell detection machine for lithium battery production, and relates to the technical field of battery cell detection machines, the anti-displacement battery cell detection machine comprises a machine table, the top end of the machine table is provided with a pushing mechanism, a bearing seat, a fixing frame and two rows of laser range finders, and the top end of the bearing seat is provided with a plurality of clamping grooves; a clamping assembly is arranged at the top end of the bearing seat, and a removing assembly is arranged in the bearing seat. According to the anti-displacement battery cell detection machine for lithium battery production, the clamping assembly is arranged, a clamping plate is extruded and attached to a battery cell in a clamping groove, and a sliding clamping block is used for limiting and fixing the clamping plate, so that the battery cell can be clamped, and the accident that the battery cell shakes and falls off in the moving process is avoided; meanwhile, through the arrangement of the removing assembly, the bulged battery cells can be automatically removed after being detected, and centralized storage is carried out, that is, workers do not need to take out the bulged battery cells manually, so that the detection efficiency is improved, and the working intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core detection machines, in particular to an anti-displacement battery core detection machine for lithium battery production. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloys as positive and negative electrode materials and a non-aqueous electrolyte solution. They are now widely used in various fields due to their many advantages, including long cycle life, large capacity, fast charge and discharge speed, and light weight. The battery cell is the core component of lithium batteries. After the battery cell is manufactured, it needs to be inspected for appearance and any bulging cells must be screened out to prevent the bulging of the battery cell from posing a serious safety risk to the subsequent use of the lithium battery.

[0003] Existing battery cell appearance inspections are mostly performed manually, which is inefficient, time-consuming, labor-intensive, and has poor detection accuracy.

[0004] In order to overcome the above-mentioned defects, the prior art (a Chinese patent with announcement number CN220230487U and application date of 2023-07-25) is a battery cell appearance inspection machine, which inserts the battery cell to be inspected above the holding plate, and then controls the motor to work through the controller. The motor drives the screw to rotate to drive the slider to move, so that the holding plate passes through the equipment frame, and the outer walls of the battery cells passing through are detected by the distance sensors on both sides. When the detection distance is less than the set value, that is, the battery cell has a bulge, the controller will control the corresponding indicator light to light up, thereby facilitating personnel to identify the bulging battery cell without manual appearance inspection, saving time and effort, and improving the detection accuracy;

[0005] Although the above technology can automatically detect battery cell bulges, in actual operation, the battery cells are simply inserted on the top of the holding plate. This fixing method is not stable enough, causing the battery cells to shake and fall during movement. In addition, if a bulging battery cell is detected, the staff must manually remove the unqualified battery cell after the inspection, which is not only inefficient but also increases the workload.

[0006] In response to the above problems, it is urgent to carry out innovative design based on the original equipment. Therefore, we have proposed an anti-displacement lithium battery production cell detection machine that can well solve the above problems. Utility Model Content

[0007] The purpose of the present utility model is to provide a displacement-proof lithium battery cell inspection machine for production, so as to solve the problem raised in the above-mentioned background technology that in actual working process, the battery cells are only inserted above the holding plate, and this fixing method is not stable enough, resulting in the battery cells being easily shaken and falling during movement. In addition, if a bulging battery cell is detected, the staff is required to manually remove the unqualified battery cell after the inspection, which is not only inefficient but also increases the workload.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: a displacement-resistant lithium battery production cell inspection machine, comprising a machine platform, wherein the four corners of the bottom end of the machine platform are fixedly connected to a support frame, the top end of the machine platform is provided with a bearing seat, the bearing seat slides along the surface of the machine platform via a pushing mechanism, the top end of the bearing seat is provided with a plurality of slots for inserting battery cells, and the top end of the machine platform is equipped with two rows of symmetrically distributed laser rangefinders via a fixed frame;

[0009] The top of the supporting plate is provided with a clamping assembly, and the clamping assembly includes a slide groove opened at the top of the supporting plate, and several of the clamping grooves are connected to one end of the slide groove in a sliding manner. The inner side of the slide groove is slidably connected to the clamping plate on both sides of the supporting plate. The top of the supporting plate is fixedly connected to four support seats distributed symmetrically. The two support seats on the same side are fixedly connected to the first fixing rod on both sides of the clamping plate. The two ends of the clamping plate pass through the outer side of the supporting plate and are slidably connected to the outer side of the first fixing rod. The two ends of the clamping plate and the two support seats close to the clamping groove are fixedly connected to the first spring on the outer side of the first fixing rod. One side wall of the supporting seat is fixedly connected to the second fixing rod, and the outer side of the second fixing rod is slidably connected to the sliding block. When the battery pack is in a closed position, the first spring is pressed against the second fixing rod and the second fixing rod is pressed against the second fixing rod, thereby preventing the battery pack from being loosened and falling off.

[0010] The support seat is provided with a rejection component inside. By setting up the rejection component, the bulging battery cells can be automatically rejected after being detected and stored in a centralized manner, which means that there is no need for staff to take them out manually, thereby improving detection efficiency and reducing work intensity.

[0011] Preferably, a plurality of continuous arc-shaped blocks are formed in the middle part of the clamping plate, and the distribution positions of the arc-shaped blocks correspond one-to-one to the card slots. The structure of the slide groove matches the clamping plate. Through the structural setting of the clamping plate, the protruding parts of the arc-shaped blocks can be tightly squeezed and fitted with the battery cells inserted into the inner side of the card slot, thereby ensuring the stability of the clamping.

[0012] Preferably, a soft gasket is fixedly bonded to the end face of the protruding portion of each arc-shaped block of the clamping plate, and the length of the soft gasket is smaller than the length of the connecting port between the slide groove and each card slot. Through the provision of the soft gasket, a buffering protection effect can be provided when the clamping plate clamps the battery cell without affecting the clamping effect of the clamping plate on the battery cell, thereby preventing the clamping plate from causing scratches and wear on the battery cell.

[0013] Preferably, the sliding block is composed of an upper clamping portion and a lower sliding portion, the clamping portion is used to firmly clamp one side of the first fixed rod, the sliding portion slides on the outside of the second fixed rod and is connected to the second spring, and the sliding block and the top two sides of the clamping plate are fixedly connected with a toggle block, through the structural setting of the sliding block, its sliding portion can be driven by the second spring to move along the second fixed rod, and the clamping portion is firmly clamped on one side of the first fixed rod to limit the clamping plate, and the setting of the toggle block can facilitate the user to move the clamping plate and the toggle block.

[0014] Preferably, the interior of the supporting seat is provided with a cavity connected to all the card slots, the rejection component includes a drawer slidably connected to the two ends of the supporting seat cavity, the inner side of the card slot is slidably connected to the supporting plate, the battery cell is placed on the top of the supporting plate, the bottom end of the supporting plate is fixedly connected to a sliding rod, the bottom inner wall of the supporting seat cavity is fixedly connected to a fixed sleeve, the sliding rod is limited to slide on the inner top of the fixed sleeve, and a third spring is fixedly connected between the bottom inner wall of the fixed sleeve and the bottom end wall of the sliding rod, and the bottom end of the sliding rod and the bottom inner wall of the fixed sleeve are respectively fixedly installed with a moving magnetic piece and a fixed electromagnet. Under normal circumstances, the fixed electromagnet is not energized. By setting the rejection component, when the push machine The structure pushes the supporting seat and the battery cells to pass between the two rows of laser rangefinders for size detection. When abnormal bulging is found, the fixed electromagnet corresponding to the abnormal battery cell will be energized and generate a strong magnetic force. In this way, the fixed electromagnet attracts the moving magnetic piece through magnetic attraction and moves downward. The corresponding sliding rod and supporting plate on the top move synchronously, and the third spring is compressed. When the supporting plate drops between the two drawers, the battery cells above the supporting plate will slide into the inside of the drawer to centrally store the battery cells with abnormal bulging. Then the fixed electromagnet is de-energized, and the magnetic attraction between the fixed electromagnet and the moving magnetic piece disappears. Driven by the rebound of the third spring, the sliding rod and the supporting plate rise and reset to carry the next batch of battery cells.

[0015] Preferably, the top of the supporting plate is formed into an inclined surface, and the inclined surfaces of two adjacent supporting plates are staggered, so that when the supporting plate descends, the battery cells can automatically slide down along the inclined surface to the inner side of the drawer, and the staggered inclined surfaces allow the battery cells to slide evenly to the inner sides of the two drawers.

[0016] Preferably, the openings of the two drawers on one side close to the sliding rod are lower, so that the internal space of the drawers is connected to the card slot, leaving space for accommodating the battery cells to slide down from the supporting plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-displacement lithium battery production cell detection machine can clamp the battery cell by providing a clamping assembly, utilizing the extrusion and fit between the clamping plate and the battery cell inside the card slot, and the limiting fixation of the clamping plate by the sliding block, thereby preventing the battery cell from shaking and falling during movement; at the same time, by providing a rejection assembly, the bulging battery cell can be automatically rejected after detection and centralized storage, that is, there is no need for staff to manually remove it, thereby improving detection efficiency and reducing work intensity. The specific contents are as follows:

[0018] (1) By setting up a clamping assembly, it is only necessary to push the clamping plate toward the card slot to move it closer, and the first spring is compressed. When the clamping plate moves to fit tightly with the battery cell inside the card slot, the sliding block will be squeezed into the space between the support seat and the clamping plate along the second fixing rod under the rebound of the second spring, so that the clamping plate can be limited and fixed, thereby ensuring that it firmly clamps the battery cell and avoiding the accidental shaking and falling of the battery cell during movement;

[0019] (2) By setting up a rejection component, when the pushing mechanism pushes the supporting seat and the battery cell to pass between the two rows of laser rangefinders for size detection and finds abnormal bulging, the fixed electromagnet corresponding to the abnormal battery cell will be energized and generate a strong magnetic force, which can attract the moving magnetic sheet to move downward, and the corresponding sliding rod and the supporting plate on the top move synchronously. The third spring is compressed. When the supporting plate drops between the two drawers, the battery cells above the supporting plate will slide into the inside of the drawer to centrally store the battery cells with abnormal bulging. Then the fixed electromagnet is de-energized, and the magnetic attraction between the fixed electromagnet and the moving magnetic sheet disappears. The sliding rod and the supporting plate rise and reset under the rebound of the third spring to carry the next batch of battery cells. This structure does not require the staff to manually remove the bulging battery cells, thereby improving the detection efficiency and reducing the workload.

[0020] (3) By bonding a soft gasket to the protruding portion of the arc-shaped block of the clamping plate, a buffering protection effect can be provided when the clamping plate clamps the battery cell without affecting the clamping effect of the clamping plate on the battery cell, thereby preventing the clamping plate from causing scratches and wear on the battery cell;

[0021] (4) The inclined surfaces are staggered on the top of the supporting plate, and the openings of the two drawers on the side close to the sliding rod are lower. In this way, when the supporting plate is lowered, the battery cells can automatically and evenly slide down along the inclined surfaces to the inner sides of the two drawers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall front view of the utility model;

[0023] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0024] Figure 3 It is a partial structural diagram of the utility model;

[0025] Figure 4 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0026] Figure 5 This is a schematic structural diagram of the support seat of the utility model;

[0027] Figure 6 This is a schematic diagram of the front cross-section structure of the load-bearing seat of the utility model;

[0028] Figure 7 It is a side view cross-sectional structural diagram of the support seat of the utility model.

[0029] In the figure: 1. Machine; 2. Support frame; 3. Pushing mechanism; 4. Bearing seat; 5. Slot; 6. Fixed frame; 7. Laser rangefinder; 8. Slide; 9. Clamping plate; 10. Support seat; 11. First fixed rod; 12. First spring; 13. Second fixed rod; 14. Sliding block; 15. Second spring; 16. Toggle block; 17. Soft gasket; 18. Drawer; 19. Bearing plate; 20. Sliding rod; 21. Fixed sleeve; 22. Third spring; 23. Moving magnetic piece; 24. Fixed electromagnet. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1-Figure 7The present invention provides the following technical solution: a displacement-proof lithium battery production cell inspection machine, comprising a machine platform 1, with support frames 2 fixedly connected to the four corners of the bottom end of the machine platform 1, a bearing seat 4 provided on the top end of the machine platform 1, the bearing seat 4 sliding along the surface of the machine platform 1 via a pushing mechanism 3, a plurality of slots 5 for inserting battery cells are provided on the top end of the bearing seat 4, and two rows of symmetrically distributed laser rangefinders 7 are installed on the top end of the machine platform 1 via a fixing frame 6;

[0032] The top of the supporting seat 4 is provided with a clamping assembly, which includes a slide 8 opened at the top of the supporting seat 4, and several card slots 5 are connected to one end of the slide 8. The inner side of the slide 8 is slidably connected with a clamping plate 9, wherein the middle part of the clamping plate 9 is formed with several continuous arc blocks, and the distribution position of the arc blocks corresponds one to one with the card slot 5. The structure of the slide 8 matches the clamping plate 9. Through the structural setting of the clamping plate 9, the protruding part of the arc block can be tightly squeezed and fitted with the battery cell plugged into the inner side of the card slot 5, thereby ensuring the stability of the clamping. Four support seats 10 with symmetrical distribution are fixedly connected to the top of both sides of the supporting seat 4, located A first fixing rod 11 is fixedly connected between the two support seats 10 on the same side. Both sides of the clamping plate 9 pass through the outside of the bearing seat 4 and are slidably connected to the outside of the first fixing rod 11. A first spring 12 is fixedly connected to the outside of the first fixing rod 11 between the two ends of the clamping plate 9 and the two support seats 10 near the card slot 5. A second fixing rod 13 is fixedly connected to the side wall of one side of the bearing seat 4. A sliding block 14 is slidably connected to the outside of the second fixing rod 13. A second spring 15 is fixedly connected to the outside of the second fixing rod 13 between the bottom of one side of the sliding block 14 and the side wall of the bearing seat 4. Specifically, the sliding block 14 is fixedly connected to the outside of the second fixing rod 13 by the bottom of one side of the sliding block 14. The clamping portion is composed of the sliding portion below, and the clamping portion is used to firmly clamp on one side of the first fixed rod 11, and the sliding portion slides on the outside of the second fixed rod 13 and is connected to the second spring 15, and the sliding block 14 and the top two sides of the clamping plate 9 are fixedly connected with a toggle block 16. Through the structural setting of the sliding block 14, its sliding portion can be driven by the second spring 15 to move along the second fixed rod 13, and the clamping portion is firmly clamped on one side of the first fixed rod 11 to limit the clamping plate 9. The setting of the toggle block 16 can facilitate the user to move the clamping plate 9 and the toggle block 16. By setting the clamping assembly, only the clamping plate 9 needs to be pushed The two sides of the clamping plate 9 move closer to the card slot 5 along the first fixing rod 11, and the first spring 12 is compressed. When the clamping plate 9 moves along the slide groove 8 until it is tightly fitted with the battery cell inside the card slot 5, the gap distance between the two support seats 10 away from the card slot 5 and the two sides of the clamping plate 9 will be equal to the width of the sliding block 14. At this time, driven by the rebound of the second spring 15, the sliding block 14 will be squeezed into and inserted between the support seat 10 and the clamping plate 9 along the second fixing rod 13, so as to limit and fix the clamping plate 9, thereby ensuring its stable clamping of the battery cell and avoiding the accidental shaking and falling of the battery cell during movement;

[0033] In addition, a soft gasket 17 is fixedly bonded to the end face of the protruding portion of each arc-shaped block of the clamping plate 9. The length of the soft gasket 17 is less than the length of the connection between the slide groove 8 and each card slot 5. Through the provision of the soft gasket 17, a buffering protection effect can be provided when the clamping plate 9 clamps the battery cell without affecting the clamping effect of the clamping plate 9 on the battery cell, thereby preventing the clamping plate 9 from causing scratches and wear on the battery cell.

[0034] Example 2:

[0035] On the basis of the first embodiment, a rejection component is provided inside the supporting seat 4. By providing the rejection component, the bulging battery cells can be automatically rejected after being detected and stored in a centralized manner, that is, there is no need for staff to manually take them out, thereby improving the detection efficiency and reducing the workload. Specifically, a cavity connected to all the card slots 5 is provided inside the supporting seat 4. The rejection component includes a drawer 18 slidably connected to both ends of the cavity of the supporting seat 4. The inner side of the card slot 5 is slidably connected to a supporting plate 19. The battery cell is placed on the top of the supporting plate 19, wherein the top of the supporting plate 19 is formed into an inclined surface. The inclined surfaces of the two adjacent supporting plates 19 are staggered, so that when the supporting plate 19 is lowered, the battery cells can automatically slide down along the inclined surface to the inner side of the drawer 18, and the staggered inclined surfaces make the battery cells slide evenly to the inner sides of the two drawers 18. The bottom end of the supporting plate 19 is fixedly connected to the sliding rod 20, and the bottom inner wall of the supporting seat 4 cavity is fixedly connected to the fixed sleeve 21. The sliding rod 20 is limited to slide on the inner top of the fixed sleeve 21. A third spring 22 is fixedly connected between the bottom inner wall of the fixed sleeve 21 and the bottom end wall of the sliding rod 20. The bottom end of the sliding rod 20 is fixed to the fixed sleeve The inner wall of the bottom end of the tube 21 is fixedly mounted with a moving magnetic piece 23 and a fixed electromagnet 24. Under normal circumstances, the fixed electromagnet 24 is not energized. By setting a rejection component, when the pushing mechanism 3 pushes the supporting seat 4 and the battery cell to pass between the two rows of laser rangefinders 7 for size detection and finds abnormal bulging, the fixed electromagnet 24 corresponding to the abnormal battery cell will be energized and generate a strong magnetic force. In this way, the fixed electromagnet 24 attracts the moving magnetic piece 23 by magnetic attraction and moves it downward. The corresponding sliding rod 20 and the supporting plate 19 at the top move synchronously, and the third spring 22 is compressed. When the supporting plate 19 When it descends between the two drawers 18, the battery cells above the supporting plate 19 will slide into the inside of the drawers 18 to centrally store the battery cells with abnormal bulging. Among them, the openings of the two drawers 18 on the side close to the sliding rod 20 are lower, so that the internal space of the drawer 18 is connected to the card slot 5, leaving space for the battery cells to slide down from the supporting plate 19, and then the fixed electromagnet 24 is powered off, the magnetic attraction between the fixed electromagnet 24 and the movable magnetic sheet 23 disappears, and the sliding rod 20 and the supporting plate 19 rise and reset under the rebound of the third spring 22 to carry the next batch of battery cells.

[0036] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A displacement-proof lithium battery production cell inspection machine, comprising a machine platform (1), wherein the four corners of the bottom end of the machine platform (1) are fixedly connected to a support frame (2), the top end of the machine platform (1) is provided with a bearing seat (4), the bearing seat (4) slides along the surface of the machine platform (1) through a pushing mechanism (3), the top end of the bearing seat (4) is provided with a plurality of slots (5) for plugging in battery cells, and the top end of the machine platform (1) is provided with two rows of symmetrically distributed laser rangefinders (7) through a fixing frame (6); Its characteristics are: The top of the bearing seat (4) is provided with a clamping assembly, and the clamping assembly includes a slide groove (8) opened at the top of the bearing seat (4), and a plurality of the clamping grooves (5) are commonly connected to one end of the slide groove (8). The inner side of the slide groove (8) is slidably connected with a clamping plate (9). The tops of both sides of the bearing seat (4) are fixedly connected with four symmetrically distributed support seats (10), and a first fixing rod (11) is fixedly connected between the two support seats (10) on the same side. The two sides of the clamping plate (9) pass through the outer side of the bearing seat (4) and slide. Connected to the outside of the first fixing rod (11), a first spring (12) is fixedly connected to the outside of the first fixing rod (11) between the two ends of the clamping plate (9) and the two support seats (10) close to the card slot (5), a second fixing rod (13) is fixedly connected to the side wall of one side of the bearing seat (4), a sliding block (14) is slidably connected to the outside of the second fixing rod (13), and a second spring (15) is fixedly connected to the outside of the second fixing rod (13) between the bottom of one side of the sliding block (14) and the side wall of the bearing seat (4); A rejecting component is provided inside the supporting seat (4).

2. The anti-displacement lithium battery production cell detection machine according to claim 1, characterized in that: A plurality of continuous arc-shaped blocks are formed in the middle of the clamping plate (9), and the distribution positions of the arc-shaped blocks correspond one-to-one with the clamping slots (5). The structure of the sliding slot (8) matches the clamping plate (9).

3. The anti-displacement lithium battery production cell detection machine according to claim 2, characterized in that: A soft gasket (17) is fixedly bonded to the end surface of the protruding portion of each arc-shaped block of the clamping plate (9), and the length of the soft gasket (17) is smaller than the length of the connection port between the slide groove (8) and each clamping groove (5).

4. The anti-displacement lithium battery production cell detection machine according to claim 1, characterized in that: The sliding block (14) is composed of an upper clamping portion and a lower sliding portion, the clamping portion is used to firmly clamp on one side of the first fixed rod (11), the sliding portion slides on the outside of the second fixed rod (13) and is connected to the second spring (15), and the sliding block (14) and the top sides of the clamping plate (9) are fixedly connected with a toggle block (16).

5. The anti-displacement lithium battery production cell testing machine according to claim 1, characterized in that: The interior of the support seat (4) is provided with a cavity connected to all the card slots (5), and the rejection component includes a drawer (18) slidably connected to the two ends of the cavity of the support seat (4), the inner side of the card slot (5) is slidably connected to a support plate (19), and the battery cell is placed on the top of the support plate (19), and the bottom end of the support plate (19) is fixedly connected to a sliding rod (20), and the bottom inner wall of the cavity of the support seat (4) is fixedly connected to a fixed sleeve (21), and the sliding rod (20) is limited to slide on the inner top of the fixed sleeve (21), and a third spring (22) is fixedly connected between the bottom inner wall of the fixed sleeve (21) and the bottom end wall of the sliding rod (20), and a moving magnetic piece (23) and a fixed electromagnet (24) are fixedly installed on the bottom end of the sliding rod (20) and the bottom inner wall of the fixed sleeve (21), respectively. Under normal circumstances, the fixed electromagnet (24) is not energized.

6. The anti-displacement lithium battery production cell testing machine according to claim 5, characterized in that: The top of the carrying plate (19) is formed into an inclined surface, and the inclined surfaces of two adjacent carrying plates (19) are staggered.

7. The anti-displacement lithium battery production cell inspection machine according to claim 5, characterized in that: The openings of the two drawers (18) on one side close to the sliding rod (20) are lower.

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