Lithium battery voltage detection and sorting fixture

Abstract

The present invention provides a lithium battery voltage detection and sorting device, including a battery feeding component, a first-level detection component, a first-level sorting component, a second-level detection component, a second-level sorting component and a loading component, wherein the battery feeding component continuously feeds batteries to the first-level detection component, the first-level detection component detects batteries with voltages higher or lower than a first preset value as unqualified or qualified, the first-level sorting group sorts batteries that have passed the first-level detection to the second-level detection component, the second-level detection component detects batteries that have voltages lower or higher than a second preset value as unqualified or qualified, the second-level sorting component sorts batteries that have passed the second-level detection to the loading component, and the loading component loads batteries that have passed both tests. The present invention improves the efficiency and quality of battery voltage detection and sorting, and reduces production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to a lithium battery voltage detection and sorting tool. Background Art

[0002] At present, lithium batteries have been widely used in various industries, such as mobile phones, various computers, toys, electric vehicles, etc. The market demand for lithium batteries is very large, and the quality requirements for lithium batteries are getting higher and higher. Before the lithium battery is formally assembled, its voltage needs to be tested. During the test, the existing battery testing equipment usually needs to manually put the battery into the test position, and the testing component connects the electrodes at both ends of the battery to detect the voltage. When the test result is unqualified, the test host sends a signal, and the operator manually takes out the battery and separates the qualified batteries from the unqualified batteries. Since lithium batteries are produced in large quantities and continuously, the labor intensity of the operators in the above method is high, and the sorting efficiency and accuracy are not high, which makes it difficult to meet the needs of improving quality, reducing costs, and increasing efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device that can automatically detect the voltage inside a lithium battery and automatically sort qualified products from unqualified products, so as to reduce manual labor intensity, improve the efficiency and accuracy of lithium battery detection and sorting, and reduce production costs.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a lithium battery voltage detection and sorting device, comprising a battery feeding component, a first-level detection component, a first-level sorting component, a second-level detection component, a second-level sorting component and a loading component, wherein the battery feeding component continuously feeds batteries to the first-level detection component, the first-level detection component detects batteries with a voltage higher or lower than a first preset value as unqualified or qualified, and the first-level sorting component performs sorting, and sorts the batteries that pass the first-level detection to the second-level detection component, the second-level detection component detects batteries with a voltage lower or higher than a second preset value as unqualified or qualified, and the second-level sorting component performs sorting, and sorts the batteries that pass the second-level detection to the loading component, and the loading component loads batteries that pass both tests, and the second preset value is less than the first preset value.

[0005] Furthermore, the battery feeding assembly includes a battery feeding trough, which is arranged at an angle, with the first end located at a high position connected to the feeding vibration plate, and the second end located at a low position connected to the first-level detection assembly. A baffle plate is also provided at the second end of the battery feeding trough, and the baffle plate makes the channel of the second end of the battery feeding trough gradually narrow outward.

[0006] Furthermore, the first-stage detection component includes a detection slot, a movable detection head is arranged in the detection slot, the movable detection head is controlled by a detection drive cylinder at a first end of the detection slot, and a fixed detection head is arranged at a second end of the detection slot.

[0007] Furthermore, a notch is provided on one side of the first end of the detection slot, and the notch corresponds to the second end of the battery loading slot. Both sides of the second end of the detection slot are open and respectively connected to the unqualified product recovery slot and the transfer slot. The first-level sorting components are provided on both sides of the second end of the detection slot to sort the unqualified products or qualified products to the unqualified product recovery slot or the transfer slot.

[0008] Furthermore, a drop-out port is respectively arranged on both sides of the bottom of the second end of the detection trough, the unqualified product recovery trough and the transfer trough are both inclined, and the first end located at a high place is respectively aligned with the two drop-out ports, and a first recovery box is arranged at the second end of the unqualified product recovery trough located at a low place, and the second end of the transfer trough located at a low place is connected to the second-level detection component.

[0009] Furthermore, the first-stage sorting assembly includes two pushing cylinders relatively arranged on both sides of the second end of the detection slot, the pushing cylinders are arranged facing each other, and a pushing head is arranged at the end of the piston rod.

[0010] Furthermore, the second-level detection component has the same structure as the first-level detection component, the second-level sorting component has the same structure as the first-level sorting component, the notch at the first end of the detection slot of the second-level detection component is aligned with the second end of the transfer slot, and the drop openings on both sides of the bottom of the second end slot are directly aligned with the second recovery box and the first end of the drop chute respectively, the drop chute is inclined, and the second end located at the lower position is connected to the loading component.

[0011] Further, the loading assembly includes a loading tray, a plurality of loading troughs are arranged on the loading tray, the loading tray is arranged on a horizontal displacement mechanism, the horizontal displacement mechanism includes an X-axis displacement slide and a Y-axis displacement slide, the loading tray is movably arranged on the Y-axis displacement slide, and the Y-axis displacement slide is movably arranged on the X-axis displacement slide.

[0012] Furthermore, a press-fitting mechanism is also provided at the second end of the feed chute, and the press-fitting mechanism includes a press-fitting block and a press-fitting cylinder arranged on the press-fitting block and pointing vertically downward, a feed discharge port is provided at the bottom end of the press-fitting block, and a press-fitting head is provided at the end of the piston rod of the press-fitting cylinder.

[0013] Furthermore, it also includes a control machine, which is electrically connected to the movable detection head and the fixed detection head and can display the detection voltage in real time through a display screen.

[0014] The above scheme of the present invention has the following beneficial effects:

[0015] The lithium battery voltage detection and sorting equipment provided by the present invention can automatically load batteries, perform two-stage detection on battery voltage, and sort qualified products and unqualified products to different locations for collection. The two-stage detection method ensures that unqualified products with high voltage and unqualified products with low voltage are also sorted out, which is convenient for subsequent adjustment and processing. The overall structural design is reasonable, the connection and coordination are compact, and the degree of automation is high, which effectively improves the efficiency and quality of battery voltage detection and sorting, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a partial structural schematic diagram of the battery feeding assembly, the first-stage detection assembly and the first-stage sorting assembly of the present invention;

[0018] Figure 3 It is a partial structural schematic diagram of the charging assembly of the present invention.

[0019] [Description of Reference Numerals]

[0020] 1-battery loading assembly; 11-battery loading trough; 12-blocking plate; 2-first-level detection assembly; 21-detection trough; 22-movable detection head; 23-detection drive cylinder; 24-fixed detection head; 25-gap; 26-unqualified product recovery trough; 27-transfer trough; 28-dropping port; 29-first recovery box; 3-first-level sorting assembly; 31-push cylinder; 32-push head; 4-second-level detection assembly; 41-second recovery box; 42-discharge trough; 5-second-level sorting assembly; 6-loading assembly; 61-loading tray; 62-loading trough; 63-X-axis displacement slide; 64-Y-axis displacement slide; 65-pressing block; 66-pressing cylinder; 7-lithium battery; 8-display screen. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1As shown, an embodiment of the present invention provides a lithium battery voltage detection and sorting device, including a battery loading component 1, a first-level detection component 2, a first-level sorting component 3, a second-level detection component 4, a second-level sorting component 5 and a loading component 6. Among them, the battery loading component 1 continuously loads lithium batteries 7 to the first-level detection component 2, the first-level detection component 2 detects lithium batteries 7 with voltages higher or lower than a first preset value as unqualified or qualified, and the first-level sorting component 3 sorts them, and sorts the lithium batteries 7 that have passed the first-level detection to the second-level detection component 4, the second-level detection component 4 detects lithium batteries 7 with voltages lower or higher than a second preset value as unqualified or qualified, and the second-level sorting component 5 sorts them, and sorts the lithium batteries 7 that have passed the second-level detection to the loading component 6, and the loading component 6 loads the lithium batteries 7 that have passed both tests on a tray.

[0023] In this embodiment, when the voltage range of the lithium battery 7 is detected to be 3.9 to 4.87V, the lithium battery 7 is a qualified product, so the second preset value is 3.9V and the first preset value is 4.87V. The present invention adopts a two-stage sorting method, the first stage detection sorts out the lithium batteries 7 with a voltage greater than 4.87V and less than 4.87V, and the second stage detection sorts out the lithium batteries 7 with a voltage less than 3.9V and between 3.9V and 4.87V, so that the unqualified products with a voltage less than 3.9V and greater than 4.87V are automatically collected separately, so that the voltage of the unqualified products can be further adjusted later without the need for re-sorting, thereby improving the sorting efficiency.

[0024] At the same time Figure 2 As shown, the battery loading assembly 1 includes a battery loading trough 11, which is tilted, and the first end located at a high position is connected to a loading vibration plate or other similar loading mechanism. The lithium battery 7 to be tested is continuously loaded to the first end of the battery loading trough 11 through the loading vibration plate, and slides down to the second end of the battery loading trough 11 located at a low position under the action of gravity, and enters the first-level detection assembly 2. The second end of the battery loading trough 11 is also provided with a baffle plate 12, which makes the channel of the second end of the battery loading trough 11 gradually narrow outward, and the end can only accommodate a single lithium battery 7 to pass through, so as to control the lithium battery 7 to enter the first-level detection assembly 2 in sequence to detect the voltage, and avoid rolling out of the battery loading trough 11 due to excessive loading speed.

[0025] Among them, the first-level detection component 2 includes a detection slot 21, in which a movable detection head 22 is arranged. The movable detection head 22 is controlled by the detection drive cylinder 23 at the first end of the detection slot 21, and a fixed detection head 24 is arranged at the second end of the detection slot 21. When the lithium battery 7 falls into the detection slot 21, the movable detection head 22 moves toward the second end of the detection slot 21 under the drive of the detection drive cylinder 23, pushing the lithium battery 7 to move toward the fixed detection head 24. When the second end of the lithium battery 7 contacts the fixed detection head 24, the movable detection head 22 and the fixed detection head 24 contact the two poles of the lithium battery 7 at the same time to detect the battery voltage. A notch 25 is arranged on one side of the first end of the detection slot 21, and the notch 25 corresponds to the second end of the battery loading slot 11, and the lithium battery 7 falls into the detection slot 21 from the notch 25. After the current lithium battery 7 is pushed to the second end of the detection slot 21 by the movable detection head 22, the movable detection head 22 blocks the gap 25 so that the next lithium battery 7 will not fall into the detection slot 21 temporarily, so that the lithium batteries 7 can be detected in sequence.

[0026] The second end of the detection slot 21 is open on both sides and connected to the unqualified product recovery slot 26 and the transfer slot 27 respectively. The first-level sorting assembly 3 is arranged on both sides of the second end of the detection slot 21, and specifically includes two push cylinders 31 arranged on both sides of the second end of the detection slot 21. The push cylinders 31 are arranged opposite to each other, and a push head 32 is arranged at the end of the piston rod. After detecting and judging whether the product is qualified, the push cylinder 31 on the corresponding side pushes the unqualified product or qualified product to the other side. Since a drop opening 28 is respectively arranged on both sides of the bottom of the second end of the detection slot 21, the unqualified product recovery slot 26 and the transfer slot 27 are both inclined, and the first end located at a high position is aligned with the two drop openings 28 respectively, so the push cylinder 31 will push the unqualified product to the corresponding drop opening 28 so that it falls into the unqualified product recovery slot 26, and falls into the first recovery box 29 located at its second end along the unqualified product recovery slot 26, and the unqualified products with high voltage are collected by the first recovery box 29. The second end of the transfer trough 27 at the lower position is connected to the second-stage detection component 4 , and another pushing cylinder 31 pushes the lithium battery 7 that has passed the first-stage detection to the corresponding drop port 28 so that it falls into the transfer trough 27 and enters the second-stage detection component 4 .

[0027] In this embodiment, the second-level detection component 4 has the same structure as the first-level detection component 2, and the second-level sorting component 5 has the same structure as the first-level sorting component 3. The notch at the first end of the detection slot of the second-level detection component 4 is aligned with the second end of the transfer slot 27, and the drop openings on both sides of the second end slot bottom are directly aligned with the second recovery box 41 and the first end of the feed chute 42, respectively. At the same time, the feed chute 42 is tilted, and the second end located at the lower position is connected to the loading component 6. Since the structure and detection process are similar to the first level, they are not repeated here. Among them, the second recovery box 41 collects unqualified products with low voltage, and the lithium batteries 7 that are qualified in both levels of detection enter the loading component 6 with the feed chute 42 for loading.

[0028] At the same time Figure 3 As shown, the loading assembly 6 includes a loading tray 61, and a plurality of loading troughs 62 are arranged on the loading tray 61. The loading tray 61 is arranged on a horizontal displacement mechanism, and the horizontal displacement mechanism includes an X-axis displacement slide 63 and a Y-axis displacement slide 64. The loading tray 61 is movably arranged on the Y-axis displacement slide 64, and the Y-axis displacement slide 64 is movably arranged on the X-axis displacement slide 63, and a screw slider can be used for driving. Therefore, the loading tray 61 has a translational freedom in the horizontal plane to adjust its horizontal position so that each loading trough 62 is aligned with the second end of the lower trough 42 in sequence to install the lithium battery 7.

[0029] At the same time, a press-fitting mechanism is also provided at the second end of the feed chute 42, and the press-fitting mechanism includes a press-fitting block 65 and a press-fitting cylinder 66 provided on the press-fitting block 65 and vertically downward. The press-fitting block 65 and the second end of the feed chute 42 form a receiving groove, and a feeding port is provided at the bottom end of the press-fitting block 65. The lithium battery falls into the receiving groove along with the feed chute 4, and then falls from the feeding port into the loading chute 62 located directly below it. A press-fitting head is provided at the end of the piston rod of the press-fitting cylinder 66, and the press-fitting head is downwardly moved by the extension of the piston rod to assist in pushing the lithium battery 7 from the feeding port into the loading chute 62.

[0030] In addition, the device provided in this embodiment also includes a control machine, which is electrically connected to the movable detection head 22 and the fixed detection head 24. While detecting the voltage, the detected voltage value can be displayed in real time through the display screen 8. As a visual monitoring method, the staff can shut down the equipment in time when a fault is found to prevent errors or safety hazards.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lithium battery voltage detection and sorting device, characterized in that: It comprises a battery feeding component, a first-level detection component, a first-level sorting component, a second-level detection component, a second-level sorting component and a loading component, wherein the battery feeding component continuously feeds batteries to the first-level detection component, the first-level detection component detects batteries with a voltage higher than a first preset value as unqualified and batteries with a voltage lower than the first preset value as qualified, the first-level sorting component performs sorting, and sorts the batteries that have passed the first-level detection to the second-level detection component, the second-level detection component detects batteries with a voltage lower than a second preset value as unqualified and batteries with a voltage higher than the second preset value as qualified, the second-level sorting component performs sorting, and sorts the batteries that have passed the second-level detection to the loading component, and the loading component loads batteries that have passed both tests, and the second preset value is less than the first preset value; The battery loading assembly comprises a battery loading trough, the battery loading trough is tilted, the first end located at a high position is connected to the loading vibration plate, and the second end located at a low position is connected to the first-level detection assembly, and the second end of the battery loading trough is also provided with a baffle plate, and the baffle plate makes the channel of the second end of the battery loading trough gradually narrow outward; The first-stage detection assembly includes a detection slot, a movable detection head is arranged in the detection slot, the movable detection head is controlled by a detection drive cylinder at a first end of the detection slot, and a fixed detection head is arranged at a second end of the detection slot; A notch is provided on one side of the first end of the detection slot, and the notch corresponds to the second end of the battery loading slot. After the current battery is pushed to the second end of the detection slot by the active detection head, the active detection head blocks the notch so that the next battery will not fall into the detection slot temporarily. Both sides of the second end of the detection slot are open and respectively connected to the unqualified product recovery slot and the transfer slot. The first-level sorting components are arranged on both sides of the second end of the detection slot to sort unqualified products or qualified products into the unqualified product recovery slot or the transfer slot.

2. The lithium battery voltage detection and sorting device according to claim 1, characterized in that: A drop-out port is provided on both sides of the bottom of the second end of the detection trough, and the unqualified product recovery trough and the transfer trough are both inclined, and the first ends located at a high place are respectively aligned with the two drop-out ports, and a first recovery box is provided at the second end of the unqualified product recovery trough located at a low place, and the second end of the transfer trough located at a low place is connected to the second-level detection component.

3. The lithium battery voltage detection and sorting device according to claim 2, characterized in that: The first-stage sorting assembly comprises two pushing cylinders arranged opposite to each other at two sides of the second end of the detection slot, the pushing cylinders are arranged facing each other, and a pushing head is arranged at the end of the piston rod.

4. The lithium battery voltage detection and sorting device according to claim 3, characterized in that: The second-level detection component has the same structure as the first-level detection component, and the second-level sorting component has the same structure as the first-level sorting component. The notch at the first end of the detection slot of the second-level detection component is aligned with the second end of the transfer slot, and the drop openings on both sides of the bottom of the second end slot are directly aligned with the second recovery box and the first end of the drop chute respectively. The drop chute is arranged at an angle, and the second end located at a lower position is connected to the loading component.

5. The lithium battery voltage detection and sorting device according to claim 4, characterized in that: The loading assembly includes a loading tray, a plurality of loading troughs are arranged on the loading tray, the loading tray is arranged on a horizontal displacement mechanism, the horizontal displacement mechanism includes an X-axis displacement slide and a Y-axis displacement slide, the loading tray is movably arranged on the Y-axis displacement slide, and the Y-axis displacement slide is movably arranged on the X-axis displacement slide.

6. The lithium battery voltage detection and sorting device according to claim 5, characterized in that: A press-fitting mechanism is also provided at the second end of the feed chute, and the press-fitting mechanism includes a press-fitting block and a press-fitting cylinder arranged on the press-fitting block and pointing vertically downward, a feed discharge port is provided at the bottom end of the press-fitting block, and a press-fitting head is provided at the end of the piston rod of the press-fitting cylinder.

7. The lithium battery voltage detection and sorting device according to any one of claims 2 to 6, characterized in that: It also includes a control machine, which is electrically connected to the movable detection head and the fixed detection head and can display the detection voltage in real time through a display screen.

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