A battery post-assembly automatic detection device
By designing an automated testing device after battery assembly, online automated testing during the battery assembly process was achieved, solving the problem that existing equipment could not accurately detect the battery, improving testing efficiency and product quality, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN NUOXING AUTOMATION TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-19
AI Technical Summary
Existing automatic battery testing equipment cannot perform accurate testing online, resulting in a high rate of missed detections, which increases the labor intensity of workers and production costs.
An automated testing device for battery assembly was designed, including a machine base, a feeding belt mechanism, a station traversing mechanism, a contact resistance testing mechanism, a magnet resistance testing mechanism, an electrical testing mechanism, and a defect output mechanism, to achieve automated testing and online fully automated testing.
It improved detection efficiency, reduced the false negative rate, reduced labor intensity, improved the working environment, and lowered production costs.
Smart Images

Figure CN224372159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery technology, and in particular to an automatic testing device after battery assembly. Background Technology
[0002] In existing technologies, battery assembly processes in battery pack production often involve manual, single-stage assembly operations. These operations are carried out in hazardous environments, making quality control difficult and resulting in uneven assembly pressure. To ensure battery quality, testing equipment is needed to inspect the batteries and guarantee their quality.
[0003] Existing automatic battery testing equipment has the following problems: it cannot complete accurate testing online during battery production, resulting in many substandard batteries being missed and entering the market; the testing equipment often cannot work simultaneously with the production line, wasting a lot of workers' time, increasing the labor intensity of workers, and increasing production costs. Utility Model Content
[0004] The technical problem solved by this utility model is to provide an automatic testing device for battery assembly, which can automatically detect whether the assembled product is qualified, thereby improving efficiency and reducing the risk factor.
[0005] This utility model is achieved through the following technical solution: an automatic testing device for assembled batteries, comprising: a machine base and a feeding belt mechanism disposed on one side of the machine base, characterized in that a station transverse movement mechanism intersects with the discharge end of the feeding belt mechanism, and a contact resistance testing mechanism, a first magnet resistance testing mechanism, a second magnet resistance testing mechanism, an electrical testing mechanism, and a defective output mechanism are sequentially arranged along the conveying direction of the station transverse movement mechanism. The station transverse movement mechanism is provided with a lifting and dragging component, which fixes the battery and gradually moves the battery to the contact resistance testing mechanism, the first magnet resistance testing mechanism, the second magnet resistance testing mechanism, the electrical testing mechanism, and the defective output mechanism.
[0006] As a preferred technical solution, the lifting and dragging assembly includes two lifting and sliding parts on the same axis. The lifting ends of the two lifting and sliding parts are provided with transverse drag bars with positioning slots arranged at equal intervals. One lifting and sliding part is provided with a slide rail fixed to the machine base at its bottom, and the other lifting and sliding part is provided with a moving module fixed to the machine base at its bottom. A linkage plate connects the two lifting and sliding parts.
[0007] As a preferred technical solution, one end of the transverse drag bar can be movably inserted into the feeding belt mechanism, and a material positioning blocking component is provided on the feeding belt mechanism located at one end of the transverse drag bar.
[0008] As a preferred technical solution, the station transverse movement mechanism also includes guide rails symmetrically arranged on both sides of the transverse movement rod and at the same height as the feeding belt mechanism. The moving module drives the transverse movement rod to move the battery along the guide rails.
[0009] As a preferred technical solution, the contact resistance detection mechanism, the first magnet resistance testing mechanism, and the second magnet resistance testing mechanism have the same structure, and each is provided with a fixing component for fixing the battery, a lateral moving module on the upper side of the fixing component, and a lifting resistance detection component on the lateral moving module for detecting the battery resistance.
[0010] As a preferred technical solution, the fixing component includes a first lifting cylinder, the output end of which has a probe mounting plate. The fixing component also includes a front pushing cylinder, the output end of which is provided with a card plate with a slot and a pin located on the underside of the card plate.
[0011] As a preferred technical solution, the lifting resistance detection component includes a second lifting cylinder fixed to the transverse moving module. The output end of the second lifting cylinder is provided with several paddle cylinders, and the output end of the paddle cylinder is provided with a pressure sensor and a lever connected to the pressure sensor.
[0012] As a preferred technical solution, the battery testing mechanism includes a battery positioning component and a lifting detection component located on the upper side of the battery positioning component. The lifting detection component has a detection clip for detecting the end points of the battery, and the detection clip corresponds one-to-one with the end point position of the battery.
[0013] As a preferred technical solution, the defective output mechanism includes a robotic arm and a defective output belt assembly located on the side of the station transverse movement mechanism.
[0014] The beneficial effects of this utility model are as follows: Due to its simple structure, few components, and convenient operation, this utility model can be installed at uninterrupted points in the battery production process to form an integrated production and testing production line with a high degree of automation. Furthermore, by employing a contact resistance detection mechanism, a first magnet resistance testing mechanism, a second magnet resistance testing mechanism, and an electrical testing mechanism, this utility model can perform multi-position testing and electrical performance testing on the battery, greatly ensuring testing efficiency and preventing missed detections. Through a series of functions including automatic feeding, automatic testing, automatic battery qualification testing, and automatic relocation, this utility model achieves a fully automated online testing and automatic unloading operation mode, effectively improving production efficiency, enhancing product quality, reducing labor intensity, improving the working environment, and lowering production costs. Attached Figure Description
[0015] Figure 1 This is a top view of the present invention;
[0016] Figure 2This is a schematic diagram of the structure of this utility model from one perspective;
[0017] Figure 3 This is a schematic diagram of the feeding belt mechanism in this utility model;
[0018] Figure 4 This is a schematic diagram of the workstation transverse movement mechanism in this utility model;
[0019] Figure 5 This is a schematic diagram of the contact resistance detection mechanism in this utility model;
[0020] Figure 6 This is a schematic diagram of the electrical testing mechanism in this utility model. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] Please see Figure 1 and Figure 2 This embodiment provides an automatic testing device for assembled batteries, including: a machine base 10 and a feeding belt mechanism 20 disposed on one side of the machine base 10, and a station transverse movement mechanism 30 intersecting with the discharge end of the feeding belt mechanism 20. A contact resistance testing mechanism 40, a first magnet resistance testing mechanism 50, a second magnet resistance testing mechanism 60, an electrical testing mechanism 70, and a defect output mechanism 80 are sequentially arranged along the conveying direction of the station transverse movement mechanism 30. Multiple assembled batteries are placed on a fixture, and the feeding belt mechanism 20 conveys the batteries to the station transverse movement mechanism 30. The station transverse movement mechanism 30 then gradually conveys the batteries to be tested to the contact resistance testing mechanism 40, the first magnet resistance testing mechanism 50, and the second magnet resistance testing mechanism 60. The electrical testing mechanism 70, consisting of the contact resistance testing mechanism 40, the first magnet resistance testing mechanism 50, the second magnet resistance testing mechanism 60, and the electrical testing mechanism 70, performs tests on various positions of the battery and tests the battery voltage performance. It checks whether the battery is normal. Defective products are transferred out of the workstation by the defective output mechanism 80 and the workstation traversing mechanism 30. Good products are then transported to the next process by the workstation traversing mechanism 30. This utility model achieves a fully automated online testing and unloading operation mode through a series of functions including automatic feeding, automatic testing, automatic detection of battery qualification, and automatic transfer. This effectively improves production efficiency, enhances product quality, reduces labor intensity, improves the working environment, and reduces production costs.
[0023] In this embodiment, please refer to Figure 3 and Figure 4 The station transverse movement mechanism 30 includes two spaced guide rails 31 and a lifting and dragging assembly 32 located between the two guide rails 31. The two guide rails 31 are at the same height as the feeding belt mechanism 20, so that the lifting and dragging assembly 32 can move the battery on the feeding belt mechanism 20 to the space between the two guide rails 31 and guide it through the two guide rails 31. The lifting and dragging assembly 32 includes two lifting sliding parts 320 on the same axis. The lifting ends of the two lifting sliding parts 320 are provided with transverse drag rods 321 with positioning slots arranged at equal intervals. One lifting sliding part 320 is provided with a slide rail fixed to the machine base 10 at its bottom, and the other lifting sliding part 320 is provided with a moving module 322 fixed to the machine base 10 at its bottom. A linkage plate 323 is connected between the two lifting sliding parts 320. The moving module 322 can drive the two lifting sliding parts 320 to drive the transverse drag rods 321 to feed materials, so as to realize automated feeding.
[0024] Furthermore, one end of the transverse drag bar 321 can be movably inserted into the feeding belt mechanism 20, and the feeding belt mechanism 20 located at one end of the transverse drag bar is provided with a material positioning blocking component 21. The moving module 322 drives the lifting sliding part 320 connected to it, thereby driving another lifting sliding part 320 to move along the slide rail, driving the transverse drag bar 321 to move towards the feeding belt mechanism 20, so that one end of the transverse drag bar 321 is inserted into the feeding belt mechanism 20. Then, the lifting sliding part 320 lifts the transverse drag bar 321, so that the battery on the feeding belt mechanism 20 is inserted into the positioning slot on the transverse drag bar 321. Then, the moving module 322 drives the transverse drag bar 321 to move the battery towards the contact resistance detection mechanism 40, and the contact resistance detection mechanism 40 detects the battery.
[0025] In this embodiment, the lifting sliding part 320 includes a fixed seat and a cylinder mounted on the fixed seat. The transverse drag rod 321 is located at the output end of the cylinder, and the linkage plate 323 is connected to the fixed seats on the two lifting sliding parts 320. In addition, two material positioning blocking components 21 are provided, which are equally spaced on the feeding belt mechanism 20. The distance between the two material positioning blocking components is equal to the width of the positioning slot. The material positioning blocking component is composed of a cylinder and a stop block. The stop block near the station transverse movement mechanism 30 has a U-shaped slot for the transverse drag rod 321 to pass through, so as to facilitate the movement of the transverse drag rod 321.
[0026] In this embodiment, the contact resistance detection mechanism 40, the first magnet resistance testing mechanism 50, and the second magnet resistance testing mechanism 60 have the same structure. They are all equipped with a fixing component 41 for fixing the battery, a transverse moving module 424 on the upper side of the fixing component 41, and a lifting resistance detection component 42 on the transverse moving module 424 for detecting the battery resistance. The fixing component 41 fixes the tooling containing the battery in the corresponding position, so that the lifting resistance detection component 42 can accurately detect the battery after it moves down. Furthermore, by setting the contact resistance detection mechanism 40, the first magnet resistance testing mechanism 50, and the second magnet resistance testing mechanism 60 with the same structure, different positions of the assembled battery can be detected to ensure the yield rate of battery assembly.
[0027] Please refer to Figure 5 The fixing assembly 41 includes a first lifting cylinder 410, the output end of which has a mounting plate 411 for a probe 412. The fixing assembly 41 also includes a forward pushing cylinder 413, the output end of which is provided with a retaining plate 414 with a slot and a ejector pin 415 located below the retaining plate 414. A through hole for the ejector pin 415 to pass through is provided on the guide rail 31, and a slot matching the ejector pin 415 is opened at a corresponding position of the tooling. The forward pushing cylinder 413 drives... The moving pin 415 passes through the through hole and is inserted into the slot of the tooling to prevent the tooling from moving. Then, the first lifting cylinder 410 drives the clamping plate 414 to move down, so that the clamping slots clamp the battery on the tooling, and the probe 412 presses the battery to prevent the battery from moving when the lifting resistance detection component 42 detects it. It should be noted that the number of clamping slots on the clamping plate 414 is set according to how many batteries are detected at one time. The number of clamping slots can be 3, 4, 5 or 6, depending on different requirements.
[0028] Furthermore, the lifting resistance detection component 42 includes a second lifting cylinder 420 fixed to the transverse movement module 424. The output end of the second lifting cylinder 420 is equipped with several lever cylinders 421. The output end of each lever cylinder 421 is equipped with a pressure sensor 422 and a lever 423 connected to the pressure sensor 422. The transverse movement module 424 adjusts the position of the lever 423, and the second lifting cylinder 420 drives the lever 423 downwards to detect the battery. The lever cylinders 421 adjust the lever 423 back and forth, and the pressure sensor 422 provides feedback on the pressure detected by the lever 423 to determine if the battery can reach the set pressure value. It should be noted that the lever 423 passes through the mounting plate 411, and the mounting plate 411 has an opening for the lever 423 to move.
[0029] After the battery pressure test is completed, the station traverse mechanism 30 transfers the battery to the electrical testing mechanism 70, where the electrical testing mechanism 70 tests the battery's voltage performance. In this embodiment, please refer to... Figure 6 The electrical testing mechanism 70 includes a battery positioning component 71 and a lifting detection component 72 disposed on the upper side of the battery positioning component 71. The lifting detection component 72 has a detection clip 73 for detecting the end points of the battery. The detection clip 73 corresponds one-to-one with the end point position of the battery. The battery positioning component 71 positions the battery. After the positioning is completed, the lifting detection component 72 drives the detection clip 73 to move down, so that the detection clip 73 detects the voltage performance of the battery.
[0030] In this embodiment, the battery positioning component 71 is made of a front-end cylinder and a clamping plate 414, and the clamping plate 414 also has a corresponding slot for the battery; the lifting detection component 72 is composed of a vertical cylinder, a voltage detector, and a bracket. The voltage detector is electrically connected to the detection clamp 73, and the voltage detector and the detection clamp 73 are mounted on the bracket. The vertical cylinder drives the bracket to move.
[0031] After the inspection is completed, the defective products are transported by the station traverse mechanism 30. If a defective product is found, the station traverse mechanism 30 will transfer the defective product to the defective output mechanism 80, which will then send the defective product out of the station traverse mechanism 30. Good products will continue to be transferred to a station by the station traverse mechanism 30. In this embodiment, the defective output mechanism 80 includes a robot arm 81 and a defective output belt assembly 82 located on the side of the station traverse mechanism 30. The robot arm 81 will transport the defective product to the defective output belt assembly 82, which will then transport the defective product to the defective product recycling area for recycling.
[0032] In summary, this utility model, due to its simple structure, few components, and convenient operation, can be installed at the end of the battery production process to form an integrated production and testing line with a high degree of automation. Furthermore, this utility model employs a contact resistance detection mechanism 40, a first magnet resistance testing mechanism 50, a second magnet resistance testing mechanism 60, and an electrical testing mechanism 70, enabling detection at multiple locations on the battery and testing of the battery's electrical performance, greatly ensuring testing efficiency and avoiding missed detections.
[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
Claims
1. An automatic testing device for battery assembly, comprising: The machine base and the feeding belt mechanism located on one side of the machine base are characterized in that the station transverse movement mechanism intersects with the discharge end of the feeding belt mechanism, and the contact resistance detection mechanism, the first magnet resistance test mechanism, the second magnet resistance test mechanism, the electrical test mechanism and the defective output mechanism are arranged sequentially along the conveying direction of the station transverse movement mechanism. The station transverse movement mechanism is equipped with a lifting and dragging component, which fixes the battery and gradually moves the battery to the contact resistance detection mechanism, the first magnet resistance test mechanism, the second magnet resistance test mechanism, the electrical test mechanism and the defective output mechanism.
2. The automatic testing equipment for battery assembly according to claim 1, characterized in that, The lifting and dragging assembly includes two lifting and sliding parts on the same axis. The lifting ends of the two lifting and sliding parts are provided with transverse drag bars with positioning slots arranged at equal intervals. One lifting and sliding part has a slide rail fixed to the machine base at its bottom, and the other lifting and sliding part has a moving module fixed to the machine base at its bottom. A linkage plate connects the two lifting and sliding parts.
3. The automatic testing equipment after battery assembly according to claim 2, characterized in that, One end of the transverse drag bar can be movably inserted into the feeding belt mechanism, and a material positioning blocking component is provided on the feeding belt mechanism located at one end of the transverse drag bar.
4. The automatic testing equipment after battery assembly according to claim 2, characterized in that, The station transverse movement mechanism also includes guide rails symmetrically arranged on both sides of the transverse movement rod and at the same height as the feeding belt mechanism. The moving module drives the transverse movement rod to move the battery along the guide rails.
5. The automatic testing equipment for battery assembly according to claim 1, characterized in that, The contact resistance testing mechanism, the first magnet resistance testing mechanism, and the second magnet resistance testing mechanism have the same structure, and each is equipped with a fixing component for fixing the battery, a lateral moving module located on the upper side of the fixing component, and a lifting resistance testing component located on the lateral moving module for detecting the battery resistance.
6. The automatic testing equipment for battery assembly according to claim 5, characterized in that, The fixing assembly includes a first lifting cylinder, the output end of which has a probe mounting plate. The fixing assembly also includes a front pushing cylinder, the output end of which is provided with a card plate with a slot and a pin located on the underside of the card plate.
7. The automatic testing equipment after battery assembly according to claim 5, characterized in that, The lifting resistance detection component includes a second lifting cylinder fixed to the lateral movement module. The output end of the second lifting cylinder is equipped with several paddle cylinders. The output end of the paddle cylinder is equipped with a pressure sensor and a lever connected to the pressure sensor.
8. The automatic testing equipment for battery assembly according to claim 1, characterized in that, The battery testing mechanism includes a battery positioning component and a lifting detection component located on the upper side of the battery positioning component. The lifting detection component has detection clips for detecting the end points of the battery, and the detection clips correspond one-to-one with the end points of the battery.
9. The automatic testing equipment for battery assembly according to claim 1, characterized in that, The defective output mechanism includes a robotic arm and a defective output belt assembly located on the side of the station transverse movement mechanism.