Automatic testing fixture for power batteries

Abstract

This utility model discloses an automatic testing fixture for power batteries, including a limiting seat. The limiting seat consists of a lower base and an upper roller seat. Multiple adjusting rollers are rotatably connected inside the roller seat. A battery to be tested is mounted on the upper end of each adjusting roller, and an electrical connection port is located at the center of the front end of the battery. Limiting slide tubes are connected to the left and right sides of the lower end of the roller seat. An adjusting threaded sleeve is provided between two of the limiting slide tubes and is connected to the center of the lower end of the roller seat. Limiting slide rods are slidably connected inside the front ends of both limiting slide tubes. Connecting plates are connected to the rear ends of both limiting slide rods, and the connecting plates are located on the front side of the limiting seat. The testing plug is bolted to the rear end of the connecting seat, allowing for quick replacement of the electrical connection port according to different battery models. This significantly improves the versatility and adaptability of the testing fixture, making it suitable for testing various specifications of power batteries and reducing equipment modification costs.

Description

Technical Field

[0001] This utility model relates to the field of power battery testing, and in particular to an automatic testing fixture for power batteries. Background Technology

[0002] In the traditional power battery testing process, the test plug is usually connected to the battery electrical connection port manually or semi-automatically. This method has problems such as low positioning accuracy and poor compatibility.

[0003] Most existing testing fixtures use a fixed structure, which cannot adapt to the interface specifications of different battery models, resulting in insufficient versatility of the testing equipment and increased production costs. Furthermore, the lack of effective guiding and limiting mechanisms makes it easy for misalignment to occur during the alignment process of the testing plug and the battery interface, affecting testing efficiency and accuracy.

[0004] To address the aforementioned issues, this patent proposes a power battery testing fixture with positioning, flexible clamping, and rapid adaptation functions to improve testing efficiency, protect the battery's appearance, and adapt to the testing needs of various battery specifications. Utility Model Content

[0005] The main purpose of this utility model is to propose an automatic testing fixture for power batteries, which aims to solve the problems of low positioning accuracy and poor adaptability of traditional power battery testing fixtures.

[0006] To address the aforementioned problems, this utility model proposes an automatic testing fixture for power batteries, including a limiting seat. The limiting seat comprises a lower base and an upper roller seat. Multiple adjusting rollers are rotatably connected inside the roller seat. A battery to be tested is positioned at the upper end of each adjusting roller, and an electrical connection port is located at the center of the front end of the battery. Limiting slide tubes are connected to the left and right sides of the lower end of the roller seat. Adjusting threaded sleeves are positioned between two of the limiting slide tubes and connected to the center of the lower end of the roller seat. Limiting slide rods are slidably connected inside the front ends of both limiting slide tubes. Each end is connected to a connecting plate, which is located in front of the limiting seat. An adjusting screw is rotatably connected to the lower side of the center of the rear end of the connecting plate, and the adjusting screw is threaded inside the adjusting threaded sleeve. The front end of the adjusting screw is limited by a limiting ring to the connecting plate and extends to the outside of the front end of the connecting plate. A connecting handle is connected to the front end of the adjusting screw. A limiting plate is connected to the upper end of the connecting plate. A connecting seat is connected to the lower side of the rear end of the limiting plate. A detection plug is bolted to the rear end of the connecting seat. The rear end of the detection plug is inserted into the electrical connection port, and the upper end of the detection plug is connected to an external detection device through a wire harness.

[0007] Preferably, the limiting plate has telescopic sliding holes extending through its upper and lower ends, and telescopic toothed rods are slidably connected inside both of the telescopic sliding holes.

[0008] Preferably, a gear groove is connected between the two telescopic sliding holes at the middle, and an adjusting gear is rotatably connected inside the gear groove via a rotating shaft.

[0009] Preferably, the adjusting gear is located between and meshes with the two telescopic racks, and the shaft of the adjusting gear extends to the outside of the front end of the limiting plate.

[0010] Preferably, the front end of the adjusting gear is connected to an adjusting handle via a rotating shaft, and the adjusting handle is located outside the front end of the limiting plate. Both of the telescopic gears are connected to a curved positioning clamp arm at the end away from the limiting plate, and the two positioning clamp arms are arranged symmetrically from left to right.

[0011] Preferably, the positioning clamp arm has roller grooves at both ends and the middle, and each of the three roller grooves is rotatably connected to a limiting roller.

[0012] Preferably, each of the three limiting rollers has a limiting groove on its cylindrical outer wall, and a limiting belt is sleeved on the outside of the three limiting rollers, with the limiting belt engaging inside the three limiting grooves.

[0013] Beneficial effects:

[0014] 1. The detection plug of this utility model is connected to the rear end of the connector by bolts, which can be quickly replaced according to the electrical connection port of different battery models, significantly improving the versatility and adaptability of the detection fixture. It is suitable for testing power batteries of various specifications and reduces the cost of equipment modification.

[0015] 2. This utility model ensures the horizontal movement of the connecting plate through the sliding cooperation of the limiting slide tube and the limiting slide rod, so that the detection plug and the battery electrical connection port always maintain the same height, achieving precise positioning in the vertical direction, avoiding insertion deviation, and improving the stability and reliability of the detection.

[0016] 3. This utility model uses a shifting gear to drive a symmetrical telescopic rack, which drives the left and right positioning clamping arms to move closer or further away simultaneously, automatically centering and clamping the battery, ensuring that the battery and the detection plug are accurately aligned in the left and right directions. At the same time, the flared opening design assists in the initial guidance of the battery, improving positioning efficiency.

[0017] 4. The positioning clamp arm of this utility model has a built-in limiting roller and belt structure. The rolling contact reduces friction with the battery and avoids hard scratches. At the same time, the belt rotates continuously as it moves, which not only realizes the battery pushing and positioning, but also ensures that the detection plug can continue to advance after clamping, thus taking into account both positioning accuracy and equipment protection.

[0018] 5. The combination of the adjusting screw and the connecting throttle in this utility model enables the linear movement of the test plug back and forth. The adjusting throttle controls the clamping action, and through mechanical positioning, manual intervention is avoided, thereby improving the automation and efficiency of the test. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the battery testing fixture of this utility model.

[0021] Figure 2 This is a schematic diagram of the connection structure of the connecting plate of this utility model;

[0022] Figure 3 This is a schematic diagram of the limiting plate connection structure of this utility model;

[0023] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the positioning clamp arm connection structure of this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Limiting seat; 2. Adjusting roller; 3. Battery under test; 4. Limiting slide tube; 5. Adjusting threaded sleeve; 6. Limiting slide rod; 7. Connecting plate; 8. Adjusting screw; 9. Connecting throttle; 10. Limiting plate; 11. Connecting seat; 12. Detection plug; 13. Telescopic slide hole; 14. Telescopic rack; 15. Gear groove; 16. Adjusting gear; 17. Adjusting throttle; 18. Positioning clamp arm; 19. Roller groove; 20. Limiting roller; 21. Limiting belt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To achieve the above-mentioned utility model objectives, such as Figures 1-5As shown, this utility model provides an automatic testing fixture for power batteries, including a limiting seat 1. The limiting seat 1 consists of a lower base and an upper roller seat. Multiple adjusting rollers 2 are rotatably connected inside the roller seat. A battery 3 to be tested is mounted on the upper end of the multiple adjusting rollers 2, and an electrical connection port is provided inside the center of the front end of the battery 3. Limiting slide tubes 4 are connected to the left and right sides of the lower end of the roller seat. An adjusting threaded sleeve 5 is provided between two limiting slide tubes 4, and the adjusting threaded sleeve 5 is connected to the lower end of the roller seat. At the center, both limiting slide tubes 4 have limiting slide rods 6 slidably connected inside their front ends. Both limiting slide rods 6 have connecting plates 7 connected to their rear ends. The connecting plates 7 are located in front of the limiting seat 1. An adjusting screw 8 is rotatably connected to the lower side of the center of the rear end of the connecting plate 7. The adjusting screw 8 is threaded into the adjusting threaded sleeve 5. The front end of the adjusting screw 8 is limited by a limiting ring against the connecting plate 7 and extends to the outside of the front end of the connecting plate 7. A connecting handle 9 is connected to the front end of the adjusting screw 8. The upper end of the connecting plate 7 is connected to... A limiting plate 10 is provided, and a connecting seat 11 is connected to the lower rear end of the limiting plate 10. A test plug 12 is bolted to the rear end of the connecting seat 11. The rear end of the test plug 12 is inserted into the electrical connection port, and the upper end of the test plug 12 is connected to an external testing device through a wire harness. During the automatic testing of the battery 3 under test, the battery 3 under test is placed at the middle position of the upper end of multiple adjusting rollers 2. Then, the connecting handle 9 is rotated, which drives the adjusting screw 8 to screw inside the adjusting threaded sleeve 5. Since the adjusting screw 8 is rotatably connected inside the connecting plate 7 and its position is limited by the limiting ring, the adjusting screw 8 can drive the connecting plate 7 and the limiting plate 10 to move backward. It also drives the test plug 12 to move backward through the connecting seat 11 at the front end of the limiting plate 10, so that the test plug 12 is inserted into the electrical connection port at the center of the front end of the battery 3 under test. This allows the external testing device to connect to the battery 3 under test through the wire harness and the test plug 12, thereby testing the battery 3 under test.

[0029] Since the test plug 12 is bolted to the rear end of the connector 11, the test plug 12 can be replaced according to the model of the electrical connection port, improving the versatility of the test fixture. During the backward movement of the connecting plate 7, the connecting plate 7 can limit the sliding position through the limiting slide tubes 4 on both sides and the limiting slide rods 6 on both sides, ensuring that the connecting plate 7 moves horizontally backward, ensuring that the test plug 12 and the electrical connection port of the battery under test 3 are always at the same height, allowing the two limiting slide tubes 4 and the two limiting slide rods 6 to position the battery under test 3 and the test plug 12 in the vertical direction, ensuring that the test plug 12 can be smoothly inserted into the electrical connection port.

[0030] Preferably, the limiting plate 10 has telescopic sliding holes 13 extending through its upper and lower ends, and telescopic gears 14 are slidably connected inside each of the two telescopic sliding holes 13. A gear groove 15 is connected between the two telescopic sliding holes 13, and an adjusting gear 16 is rotatably connected inside the gear groove 15 via a rotating shaft. The adjusting gear 16 is located between the two telescopic gears 14 and meshes with them. The rotating shaft of the adjusting gear 16 extends to the outside of the front end of the limiting plate 10, and an adjusting handle 17 is connected to the front end of the adjusting gear 16 via a rotating shaft. The adjusting handle 17 is located on the limiting plate 10. At the front exterior, each of the two telescopic toothed rods 14 has a curved positioning clamping arm 18 connected to its end away from the limiting plate 10. The two positioning clamping arms 18 are arranged symmetrically from left to right. During the backward movement of the connecting plate 7, the connecting plate 7 can drive the positioning clamping arms 18 on both sides to move backward together through the limiting plate 10 and the telescopic sliding hole 13. When the two positioning clamping arms 18 are located on both sides of the battery 3 to be tested, since the two curved positioning clamping arms 18 can be combined in the horizontal direction to form a trumpet-shaped limiting push plate that is wider at the back and narrower at the front, and the left and right inner walls of the front inner cavity of the trumpet-shaped limiting push plate are parallel, when the two When the positioning clamping arm 18 moves to the outside of the battery 3 under test, the limiting device pushes the battery 3 under test to the middle position of the two positioning clamping arms 18 through the horn-shaped limiting push plate, and slides between the parallel inner walls on the front side. When the battery 3 under test reaches between the parallel inner walls of the two positioning clamping arms 18, the connecting handle 9 is stopped, and the adjustment handle 17 is rotated. The adjustment handle 17 drives the adjustment gear 16 to rotate, and through the adjustment gear 16, it drives the two telescopic racks 14 to slide in the telescopic sliding hole 13 in a similar direction, thereby driving the two positioning clamping arms 18 to move closer to the middle. The battery 3 to be tested is clamped. Since the two positioning clamping arms 18 are symmetrically arranged, they can limit the battery 3 to be tested to the front of the connecting plate 7 and to the front of the test plug 12, ensuring that the electrical connection port of the test plug 12 and the battery 3 to be tested are in a straight line in the front-back direction. The two positioning clamping arms 18 position the battery 3 to be tested and the test plug 12 in the left-right direction. At this time, the connecting handle 9 is turned again, and the connecting plate 7 continues to drive the test plug 12 to move backward, so that the test plug 12 can be smoothly inserted into the electrical connection port.

[0031] Preferably, the positioning clamping arms 18 have roller grooves 19 inside at both ends and the middle. Each of the three roller grooves 19 is rotatably connected to a limiting roller 20. Each of the three limiting rollers 20 has a limiting slot on its cylindrical outer wall. A limiting belt 21 is sleeved on the outside of each limiting roller 20 and engages with the three limiting slots. During the process of the two positioning clamping arms 18 limiting the battery 3 under test, the two positioning clamping arms 18 can contact the battery 3 under test via the limiting belt 21, and the limiting belt 21 can rotate outside the positioning clamping arms 18 via the three limiting rollers 20. The limiting belt 21 can push the battery under test 3 to the middle position of the two positioning clamps 18 by rotating and pushing at the same time, so as to avoid hard contact between the positioning clamps 18 and the battery under test 3, which would cause damage to the battery under test 3 and the positioning clamps 18. After the positioning clamps 18 clamp the battery under test 3, the positioning clamps 18 can continue to move backward outside the battery under test 3 by rotating the limiting belt 21, so as to keep the position of the battery under test 3 stationary, while allowing the connecting plate 7 and the detection plug 12 to continue to move closer to the battery under test 3, so as to ensure that the detection plug 12 can be successfully connected to the electrical connection port.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An automatic testing fixture for power batteries, characterized in that, The device includes a limiting seat (1), which consists of a lower base and an upper roller seat. Multiple adjusting rollers (2) are rotatably connected inside the roller seat. A battery (3) to be tested is mounted on the upper end of each adjusting roller (2), and an electrical connection port is located at the center of the front end of the battery (3). Limiting slide tubes (4) are connected to both the left and right sides of the lower end of the roller seat. An adjusting threaded sleeve (5) is provided between two of the limiting slide tubes (4), and the adjusting threaded sleeve (5) is connected to the center of the lower end of the roller seat. Limiting slide rods (6) are slidably connected inside the front ends of both limiting slide tubes (4), and connecting plates (7) are connected to the rear ends of both limiting slide rods (6). The connecting plates (7) are located within the limiting seat (1). On the front side, an adjusting screw (8) is rotatably connected to the lower side of the center of the rear end of the connecting plate (7), and the adjusting screw (8) is threadedly connected to the inside of the adjusting threaded sleeve (5). The front end of the adjusting screw (8) is limited to the connecting plate (7) by a limiting ring and extends to the outside of the front end of the connecting plate (7). A connecting handle (9) is connected to the front end of the adjusting screw (8). A limiting plate (10) is connected to the upper end of the connecting plate (7). A connecting seat (11) is connected to the lower side of the rear end of the limiting plate (10). A detection plug (12) is connected to the rear end of the connecting seat (11) by bolts. The rear end of the detection plug (12) is inserted into the electrical connection port, and the upper end of the detection plug (12) is connected to an external detection device by a wire harness.

2. The automatic testing fixture for power batteries as described in claim 1, characterized in that, The limiting plate (10) has telescopic sliding holes (13) running through its upper and lower ends, and telescopic toothed rods (14) are slidably connected inside both of the telescopic sliding holes (13).

3. The automatic testing fixture for power batteries as described in claim 2, characterized in that, A gear groove (15) is connected between the two telescopic sliding holes (13), and an adjusting gear (16) is rotatably connected inside the gear groove (15) via a rotating shaft.

4. The automatic testing fixture for power batteries as described in claim 3, characterized in that, The adjusting gear (16) is located between the two telescopic racks (14) and meshes with the two telescopic racks (14). The shaft of the adjusting gear (16) extends to the outside of the front end of the limiting plate (10).

5. The automatic testing fixture for power batteries as described in claim 4, characterized in that, The front end of the adjusting gear (16) is connected to the adjusting handle (17) via a rotating shaft, and the adjusting handle (17) is located outside the front end of the limiting plate (10). The two telescopic racks (14) are connected to curved positioning clamps (18) at the ends away from the limiting plate (10), and the two positioning clamps (18) are arranged symmetrically on the left and right.

6. The automatic testing fixture for power batteries as described in claim 5, characterized in that, The positioning clamp (18) has roller grooves (19) inside at both ends and in the middle, and each of the three roller grooves (19) is rotatably connected to a limiting roller (20).

7. The automatic testing fixture for power batteries as described in claim 6, characterized in that, Each of the three limiting rollers (20) has a limiting groove on its cylindrical outer wall. A limiting belt (21) is sleeved on the outside of the three limiting rollers (20), and the limiting belt (21) is engaged inside the three limiting grooves.

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