Short circuit testing device for cylindrical battery

Abstract

The utility model relates to the technical field of cylindrical battery testing, in particular to a short circuit testing device for a cylindrical battery, which comprises a conveying belt, a blanking mechanism is arranged at one end of the conveying belt, and a detection mechanism is arranged below the blanking mechanism; after the cylindrical battery falls into the V-shaped groove, the cylindrical battery is automatically centered and slides into the lowest position of the inclined V-shaped groove, the detection disc is driven by the stepping motor to rotate so as to switch the V-shaped groove, so that the battery can be conveniently and continuously received for operation, and when the battery in the V-shaped groove passes through the position of the second test needle, the detection disc is driven by the stepping motor to rotate. The two electrodes of the battery are in contact with the second test needle and the first test needle, so that the battery can be conveniently detected, the detection efficiency can be greatly improved through a continuous detection mode, and when batteries with different lengths are detected, the detection efficiency can be greatly improved by adjusting the position of the sliding buckle on the sliding rod. And the distance between the second test pin and the first test pin is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to cylindrical battery test technical field, concretely is a short -circuit testing device for cylindrical battery. BACKGROUND

[0002] The degree of automation of cylindrical battery production is very high, after the full -automatic winding machine winding is finished, the electric core will carry out short -circuit test on the winding machine to check whether the electric core exists short -circuit problem.

[0003] Prior art such as publication No. CN207249070U provides a short -circuit testing device for cylindrical battery, including: transport assembly line, lifting platform, short -circuit test part. Transport assembly line is equipped with the jig for loading battery, lifting platform is located the upper of transport assembly line, short -circuit test part installs on lifting platform;Lifting platform includes: support frame, lifting motor, screw rod, guide rod, lifting plate, screw rod rotation is equipped with on support frame, guide rod is fixedly equipped with on support frame, screw rod is combined with lifting plate, guide rod is equipped with on lifting plate, lifting motor drives screw rod rotation to make lifting plate along guide rod lift;Short -circuit test part includes: lifting shaft and the bearing at the both ends of lifting shaft respectively, bearing is equipped with sleeve on, sleeve is welded with test needle on. This short -circuit testing device prevents the situation of not clamping in place from causing the situation of missing detection, adapts to the electric core test of bipolar ear type, to improve the production yield of battery and the quality of battery production.

[0004] The scheme is transported battery through the setting transport assembly line, and test needle is lifted through lifting platform to facilitate the check of battery passing on transport assembly line, but there is certain requirement to the position of being placed in transport assembly line when using, resulting in that actual detection still has certain limitation. In view of this, we propose a short -circuit testing device for cylindrical battery. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a short -circuit testing device for cylindrical battery, which solves the problem of transporting battery through the transport assembly line in the prior art, lifting test needle through the lifting platform to facilitate the check of battery passing on the transport assembly line, but there is certain requirement to the position of being placed in the transport assembly line when using, resulting in that actual detection still has certain limitation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A short -circuit testing device for cylindrical battery, comprising a conveyor belt, one end of the conveyor belt is provided with a discharging mechanism, and a detection mechanism is arranged below the discharging mechanism.

[0008] The detection mechanism includes a support frame positioned below the feeding mechanism. A detection disk is rotatably mounted on the lower part of the top of the support frame. A stepper motor is fixedly connected to the lower part of the top of the support frame. The detection disk has several V-shaped grooves arranged in a circular array on the top of the detection disk. A retaining ring is positioned at the center of the top of the detection disk. A second test needle is fixedly connected to the outer wall of the retaining ring on the side away from the feeding mechanism, and the second test needle extends into the interior of the V-shaped groove. A sliding rod is fixedly connected to the bottom of the support frame on the side away from the feeding mechanism. A sliding buckle is slidably connected to the outer wall of the sliding rod, and a first test needle is connected to the bottom of the sliding buckle.

[0009] Preferably, the top of the detection disk has several annular grooves, and the depth of the annular grooves is the same as the depth of the V-shaped groove, for the second test needle to pass through.

[0010] Preferably, the top of the sliding buckle is threaded with a knob for fixing the position of the sliding buckle on the slide rod.

[0011] Preferably, the outer wall of the retaining ring contacts one end of the V-shaped groove near the center of the detection disk, and the outer wall of the retaining ring is used to block the end of the V-shaped groove near the center of the detection disk.

[0012] Preferably, the position of the annular groove is set according to the actual length of the battery being tested, so that the distance from the arc of the annular groove to the second test pin is consistent with the length of the battery.

[0013] Preferably, the feeding mechanism includes an inclined feeding platform, which is fixedly connected to one end of the conveyor belt, and a feeding frame is fixedly connected to the inclined feeding platform at the position corresponding to the V-shaped groove on the detection plate.

[0014] Preferably, a plurality of buffer rubber rods are fixedly connected to the inner wall of the feeding frame, and the buffer rubber rods are arranged in an alternating manner on the corresponding two sides of the inner wall of the feeding frame.

[0015] By employing the above technical solution, this utility model provides a short-circuit testing device for cylindrical batteries. It possesses at least the following beneficial effects:

[0016] I. This utility model involves transporting batteries to be tested at intervals above a conveyor belt to a feeding mechanism. The batteries are then received by a V-shaped groove on a testing disc. Due to the curved surface of the cylindrical battery, it automatically centers itself and slides into the lowest point of the inclined V-shaped groove after falling into it. A stepper motor drives the testing disc to rotate and switch the V-shaped groove, facilitating continuous battery handling. Whenever a battery in the V-shaped groove passes the position of the second test pin, the battery's two poles contact the second and first test pins for testing. Continuous testing significantly improves testing efficiency. Furthermore, when testing batteries of different lengths, the distance between the second and first test pins can be adjusted by changing the position of the sliding buckle on the sliding rod.

[0017] 2. When the batteries on the conveyor belt of this utility model are transported to the inclined unloading platform, they will fall onto the inclined unloading platform and roll down the inclined surface into the unloading frame, falling into the V-shaped groove below. During the process of the batteries falling into the unloading frame, the internally set staggered buffer rubber rods will cushion the batteries and prevent the impact force from being too great and causing damage to the batteries. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the detection mechanism in this utility model;

[0021] Figure 3 In this utility model Figure 2 A schematic diagram of the slide bar area;

[0022] Figure 4 This is a schematic diagram of the feeding mechanism in this utility model.

[0023] In the diagram: 1. Conveyor belt; 2. Feeding mechanism; 21. Inclined feeding platform; 22. Feeding frame; 23. Buffer rubber rod; 3. Detection mechanism; 31. Support frame; 32. Detection disc; 321. V-shaped groove; 322. Ring groove; 33. Slide rod; 331. Sliding buckle; 332. First test probe; 333. Knob; 334. Retaining ring; 335. Second test probe; 34. Stepper motor. Detailed Implementation

[0024] 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.

[0025] A short-circuit testing device for cylindrical batteries, such as Figure 1 - Figure 4 As shown, the device includes a conveyor belt 1, with a feeding mechanism 2 at one end. A detection mechanism 3 is located below the feeding mechanism 2. The detection mechanism 3 includes a support frame 31, which is positioned below the feeding mechanism 2. A detection disk 32 is rotatably mounted below the top of the support frame 31. A stepper motor 34 is fixedly connected to the bottom of the top of the support frame 31. The detection disk 32 has several V-shaped grooves 321 arranged in a circular array on its top. A retaining ring 334 is located at the center of the top of the detection disk 32. A second test needle 335 is fixedly connected to the outer wall of the retaining ring 334 on the side away from the feeding mechanism 2, and the second test needle 335 extends into the interior of the V-shaped grooves 321. A stepper motor 34 is fixedly connected to the bottom of the support frame 31 on the side away from the feeding mechanism 2. There is a slide rod 33, and a sliding buckle 331 is slidably connected to the outer wall of the slide rod 33. The bottom of the sliding buckle 331 is connected to the first test needle 332. The top of the detection disk 32 has several annular grooves 322, and the depth of the annular grooves 322 is the same as the depth of the V-shaped groove 321, for the second test needle 335 to pass through. The top of the sliding buckle 331 is threaded with a knob 333 for fixing the position of the sliding buckle 331 on the slide rod 33. The outer wall of the retaining ring 334 contacts the end of the V-shaped groove 321 near the center of the detection disk 32. The outer wall of the retaining ring 334 is used to block the end of the V-shaped groove 321 near the center of the detection disk 32. The position of the annular groove 322 is set according to the actual battery length being tested, so that the distance from the arc of the annular groove 322 to the second test needle 335 is the same as the length of the battery.

[0026] In this embodiment, the batteries to be tested are transported by placing them at intervals above the conveyor belt 1 and then unloading them at the unloading mechanism 2. The unloaded batteries are picked up by the V-shaped groove 321 on the detection disc 32. Due to the curved surface of the cylindrical battery, after the cylindrical battery falls into the V-shaped groove 321, it automatically centers and slides into the lowest point of the inclined V-shaped groove 321. The stepper motor 34 drives the detection disc 32 to rotate and switch the V-shaped groove 321 to facilitate continuous battery picking. Whenever the battery in the V-shaped groove 321 passes the position of the second test needle 335, the two poles of the battery will contact the second test needle 335 and the first test needle 332 to facilitate battery testing. The continuous testing method can greatly improve the testing efficiency. When testing batteries of different lengths, the distance between the second test needle 335 and the first test needle 332 can be adjusted by adjusting the position of the sliding buckle 331 on the sliding rod 33.

[0027] like Figure 4 As shown, preferably, the feeding mechanism 2 includes an inclined feeding platform 21, which is fixedly connected to one end of the conveyor belt 1. A feeding frame 22 is fixedly connected to the inclined feeding platform 21 at the position of the V-shaped groove 321 on the detection plate 32. A plurality of buffer rubber rods 23 are fixedly connected to the inner wall of the feeding frame 22, and the buffer rubber rods 23 are arranged in an alternating manner on the two corresponding sides of the inner wall of the feeding frame 22.

[0028] In this embodiment, when the battery on the conveyor belt 1 is transported to the inclined unloading platform 21, it will fall onto the inclined unloading platform 21 and roll down the inclined surface into the unloading frame 22, falling into the V-shaped groove 321 below. During the process of the battery falling into the unloading frame 22, the staggered buffer rubber rods 23 inside will buffer the battery to avoid excessive impact force during the fall and damage to the battery.

[0029] This utility model discloses a short-circuit testing device for cylindrical batteries. In use, the batteries to be tested are placed at intervals above a conveyor belt 1 for transport to the unloading mechanism 2. The unloaded batteries are received by the V-shaped groove 321 on the testing disc 32. Due to the curved surface of the cylindrical battery, it automatically centers and slides into the lowest point of the inclined V-shaped groove 321 after falling into it. A stepper motor 34 drives the testing disc 32 to rotate and switch the V-shaped groove 321, facilitating continuous battery handling. Whenever a battery in the V-shaped groove 321 passes the position of the second test probe 335, the two terminals of the battery will contact the second test probe. The second test needle 335 contacts the first test needle 332 to facilitate battery testing. Continuous testing can significantly improve testing efficiency. When testing batteries of different lengths, the distance between the second test needle 335 and the first test needle 332 can be adjusted by adjusting the position of the sliding buckle 331 on the sliding rod 33. When the battery on the conveyor belt 1 is transported to the inclined unloading platform 21, it will fall onto the inclined unloading platform 21 and roll down the inclined plane into the unloading frame 22, falling into the V-shaped groove 321 below. During the process of the battery falling in the unloading frame 22, the staggered buffer rubber rods 23 inside will cushion the battery and prevent excessive impact force from damaging the battery during the fall.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A short circuit testing device for cylindrical batteries, comprising a conveyor belt (1), characterized in that: One end of the conveying belt (1) is provided with a discharging mechanism (2), and the lower side of the discharging mechanism (2) is provided with a detection mechanism (3). The detection mechanism (3) comprises a support frame (31), which is arranged below the discharging mechanism (2), and a detection disc (32) is rotatably arranged below the top of the support frame (31), a stepping motor (34) is fixedly connected to the top of the support frame (31), the detection disc (32) is provided with a plurality of V-shaped grooves (321), and the V-shaped grooves (321) are arranged in an annular array on the top of the detection disc (32), a blocking ring (334) is arranged at the center of the top of the detection disc (32), a second test needle (335) is fixedly connected to the outer wall of the blocking ring (334) away from the discharging mechanism (2), and the second test needle (335) extends into the V-shaped groove (321), a sliding rod (33) is fixedly connected to the side of the bottom of the support frame (31) away from the discharging mechanism (2), and a sliding buckle (331) is slidably connected to the outer wall of the sliding rod (33), and the bottom of the sliding buckle (331) is connected with a first test needle (332).

2. The short circuit test device for cylindrical batteries according to claim 1, characterized by: The top of the detection disc (32) is provided with a plurality of ring grooves (322), and the depth of the ring groove (322) is consistent with the depth of the V-shaped groove (321), so that the second test needle (335) can pass through.

3. The short circuit test device for cylindrical batteries according to claim 1, characterized by: The top of the sliding buckle (331) is threadedly connected with a knob (333) for fixing the position of the sliding buckle (331) on the sliding rod (33).

4. The short circuit test device for cylindrical batteries according to claim 1, characterized by: The outer wall of the blocking ring (334) is in contact with one end of the V-shaped groove (321) close to the center of the detection disc (32), and the outer wall of the blocking ring (334) is used to block one end of the V-shaped groove (321) close to the center of the detection disc (32).

5. The short circuit test device for cylindrical batteries according to claim 2, characterized by: The positions of the ring grooves (322) are arranged according to the actual length of the battery to be detected, so that the distance from the arc of the ring groove (322) to the second test needle (335) is consistent with the length of the battery.

6. The short circuit test device for cylindrical batteries of claim 1, wherein: The discharging mechanism (2) comprises an inclined discharging table (21), which is fixedly connected to one end of the conveying belt (1), and the inclined discharging table (21) is fixedly connected with a discharging frame (22) corresponding to the position of the V-shaped groove (321) on the detection disc (32).

7. A short circuit testing device for a cylindrical battery according to claim 6, characterized in that: The inner wall of the discharging frame (22) is fixedly connected with a plurality of buffer rubber rods (23), and the buffer rubber rods (23) are arranged on the two sides of the inner wall of the discharging frame (22) in a staggered manner.

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