Quick detection tool for welding strength of storage battery container

Abstract

The utility model relates to a tool for rapidly detecting the welding strength of a storage battery container. Belongs to the technical field of lead-acid storage battery detection. The utility model mainly solves the problems of complex operation, long time consumption and incapability of being carried out in a production field when an electronic tensile machine is adopted for detection. The device is mainly characterized by comprising an upper handle, a lower handle and a pressure sensor, wherein the upper handle and the lower handle are connected through a rotating shaft to form a clamp; an upper testing head is formed at the clamp end of the upper handle, a lower testing head is formed at the clamp end of the lower handle, and the upper testing head and the lower testing head are distributed in a staggered mode and spaced by a gap correspondingly matched with an inner partition wall welding line. And the pressure sensor is arranged on the upper testing head and / or the lower testing head. The device has the advantages of being simple in structure, convenient to operate, free of site limitation and capable of rapidly detecting the welding strength of the partition wall in the battery jar, and is mainly used for on-site detection of the strength of the welding position of the partition wall in the production process of the battery jar.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery testing technology, specifically relating to a rapid testing device for the welding strength of the inner partition wall of a lead-acid battery cell. Background Technology

[0002] Lead-acid battery cases contain multiple cavities separated by internal partitions. The battery cases are injection molded, often with multiple gates at the bottom. This process creates weld lines at the openings of the internal partitions. These weld lines reduce the strength of the internal partitions, and in severe cases, can cause cracking, affecting battery assembly. Therefore, the strength of the weld lines at the internal partitions needs to be tested during battery case production.

[0003] The weld strength of the internal partition walls of a battery compartment is typically tested using an electronic tensile testing machine. First, the internal partition wall of the battery compartment is completely cut off using a saw. Then, a dumbbell-shaped cutter is used to extract a tensile specimen from the welded area of ​​the internal partition wall. When sampling, care should be taken to ensure the weld line is centered on the specimen. The specimen is then clamped at both ends in the fixtures of the electronic tensile testing machine for a tensile test, thus obtaining the weld strength of the battery compartment. Testing the weld strength of the internal partition walls of a battery compartment using an electronic tensile testing machine is complex and time-consuming, making it impossible to perform on-site. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for rapid testing of the welding strength of battery compartments, which is simple to operate, fast and convenient, and can guide production anytime and anywhere.

[0005] The technical solution of this utility model is: a tooling for rapid testing of the weld strength of a battery compartment, characterized in that: it consists of an upper handle, a lower handle, and a pressure sensor; wherein, the upper handle and the lower handle are connected by a rotating shaft to form a clamp; the clamp end of the upper handle forms an upper test head, and the clamp end of the lower handle forms a lower test head, the upper test head and the lower test head are staggered and spaced apart by a gap corresponding to the weld line of the inner partition wall; the pressure sensor is set on the upper test head and / or the lower test head.

[0006] In the technical solution of this utility model, the test surfaces of the upper test head and the lower test head that are opposite each other are planes.

[0007] In the technical solution of this utility model, the test surfaces of the upper test head and the lower test head that are opposite each other are rectangular surfaces.

[0008] The pressure sensor described in the technical solution of this utility model is equipped with a signal line that is connected to a pressure display device.

[0009] In the technical solution of this utility model, the pressure sensor is located at the center of the upper test head and / or the lower test head.

[0010] In the technical solution of this utility model, the upper handle and the lower handle are provided with circular through holes that cooperate with the rotating shaft; the rotating shaft is installed in the circular through holes of the upper handle and the lower handle.

[0011] In the technical solution of this utility model, both the upper handle and the lower handle are composed of a test head section, a connecting section with a circular through hole, and a handle section; the test head section and the connecting section, and the connecting section and the handle section form bends.

[0012] In the technical solution of this utility model, the upper handle and the lower handle are made of hard metal and have the same height; the pivot is a metal rod.

[0013] In the technical solution of this utility model, the upper and lower test heads are the same size, made of hard metal, and are welded to the ends of the upper and lower handles respectively; the upper and lower handles are made of hard metal and are the same height; the rotating shaft is a metal rod.

[0014] The gap described in the technical solution of this utility model is 1-3mm.

[0015] This invention employs a rapid testing fixture for the weld strength of a battery compartment, consisting of an upper handle, a lower handle, and a pressure sensor. The upper and lower handles are connected by a rotating shaft to form a clamp. The clamping end of the upper handle forms an upper test head, and the clamping end of the lower handle forms a lower test head. The upper and lower test heads are staggered and spaced apart by gaps that correspond to the weld lines of the inner partition walls. The pressure sensor is located on the upper and / or lower test heads. Therefore, when testing the weld strength of the inner partition walls of the battery compartment, the upper and lower test heads can be opened and placed on both sides of the weld line. Then, the upper and lower test heads are clamped until the required pressure value is reached, after which they are released and removed. The upper and lower test heads are then inspected for damage at the weld line of the inner partition walls of the battery compartment to obtain the weld strength of the battery compartment.

[0016] This utility model features a simple structure, convenient operation, no site restrictions, and the ability to quickly test the welding strength of the inner partition wall of the battery compartment. It is mainly used for on-site testing of the welding strength of the inner partition wall during the battery compartment production process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is a side view of the utility model in its closed state.

[0019] Figure 3 This is the state when the present invention is used for detection. Figure 1 .

[0020] Figure 4This is the state when the present invention is used for detection. Figure 2 .

[0021] Reference numerals: 1-Lower handle; 2-Rotating shaft; 3-Upper handle; 4-Upper test head; 5-Pressure sensor; 6-Lower test head; 7-Gap; 8-Inner partition wall fusion line. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 This utility model provides a rapid testing fixture for the weld strength of a battery compartment, which consists of an upper handle 3, a lower handle 1, an upper test head 4, a lower test head 6 and a pressure sensor 5. It is used for on-site testing of the weld strength of the inner partition wall during the battery compartment production process.

[0024] Both the upper handle 3 and the lower handle 1 consist of a connecting section and a handle section, forming an angle between them. The connecting section has a circular through hole that mates with the rotating shaft 2. The upper handle 3 and the lower handle 1 are made of hard metal and are of the same height. The rotating shaft 2 is a metal rod. The upper handle 3 and the lower handle 1 are connected by the rotating shaft 2 to form a clamp, allowing them to reciprocate around the rotating shaft 2 at a certain angle.

[0025] The upper test head 4 and the lower test head 6 are the same size and made of hard metal, and are welded to the clamp ends of the upper handle 3 and the lower handle 1, respectively. The test surfaces of the upper test head 4 and the lower test head 6 are rectangular planes. The upper test head 4 and the lower test head 6 are staggered, with a gap of about 2mm in the horizontal direction.

[0026] Pressure sensor 5 is connected via a sensing head to the opposing inner surfaces of upper test head 4 and lower test head 6, respectively located at the center of the inner surfaces of upper test head 4 and / or lower test head 6. Pressure sensor 5 is provided with a signal line for connection to a pressure display device.

[0027] When testing the weld strength of the inner partition wall of the battery compartment, first place the battery compartment to be tested on the testing platform. Then, rotate the upper handle 3 and lower handle 1 of the weld strength testing device outward to open the upper test head 4 and lower test head 6. Next, move the testing device so that the inner partition wall to be tested of the battery compartment is between the upper test head 4 and the lower test head 6. Adjust the position of the upper test head 4 and the lower test head 6 so that the weld line 8 of the inner partition wall is located in the center of the gap 7 between the upper test head 4 and the lower test head 6. Then, rotate the upper handle 3 and lower handle 1 inward to make the pressure sensor 5 contact the two surfaces of the inner partition wall. Continue to rotate the upper handle 3 and lower handle 1 inward until the pressure value required by the process is reached. Then, rotate the upper handle 3 and lower handle 1 outward to release and remove the upper test head 4 and lower test head 6. Check whether there is any damage at the weld line of the inner partition wall of the battery compartment. The weld strength of the battery compartment can then be obtained.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for rapid testing of the weld strength of a battery case, characterized in that: From the above The device consists of a handle (3), a lower handle (1), and a pressure sensor (5); wherein the upper handle (3) and the lower handle (1) are connected by a rotating shaft (2) to form a clamp; the clamp end of the upper handle (3) forms an upper test head (4), and the clamp end of the lower handle (1) forms a lower test head (6). The upper test head (4) and the lower test head (6) are staggered and spaced apart by a gap (7) that corresponds to and matches the welded wire (8) of the inner partition wall; the pressure sensor (5) is set on the upper test head (4) and / or the lower test head (6).

2. The rapid testing fixture for the weld strength of a battery case according to claim 1, characterized in that: The test surfaces of the upper test head (4) and the lower test head (6) are planes.

3. The rapid testing fixture for the weld strength of a battery case according to claim 2, characterized in that: The test surfaces of the upper test head (4) and the lower test head (6) are both rectangular.

4. A rapid testing fixture for the weld strength of a battery case according to claim 1, 2, or 3, characterized in that: The pressure sensor (5) is provided with a signal line that is connected to the pressure display device.

5. The rapid testing fixture for the weld strength of a battery case according to claim 4, characterized in that: The pressure sensor (5) is located at the center of the upper test head (4) and / or the lower test head (6).

6. A rapid testing fixture for the weld strength of a battery case according to any one of claims 1-3 and 5, characterized in that: The upper handle (3) and the lower handle (1) are provided with circular through holes that cooperate with the rotating shaft (2); the rotating shaft (2) is installed in the circular through holes of the upper handle (3) and the lower handle (1).

7. The rapid testing fixture for the weld strength of a battery case according to claim 6, characterized in that: The upper handle (3) and the lower handle (1) are both composed of a test head section, a connecting section with a circular through hole and a handle section; the test head section and the connecting section form a bend, and the connecting section and the handle section form a bend.

8. A rapid testing fixture for the weld strength of a battery case according to any one of claims 1-3, 5, and 7, characterized in that: The upper handle (3) and lower handle (1) are made of hard metal and have the same height; the pivot (2) is a metal rod.

9. A rapid testing fixture for the weld strength of a battery case according to any one of claims 1-3 and 5, characterized in that: The upper test head (4) and the lower test head (6) are the same size and are made of hard metal. They are welded to the ends of the upper handle (3) and the lower handle (1), respectively. The upper handle (3) and the lower handle (1) are made of hard metal and are the same height. The rotating shaft (2) is a metal rod.

10. A rapid testing fixture for the weld strength of a battery case according to any one of claims 1-3 and 5, characterized in that: The gap (7) is 1-3 mm.

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