A tensile testing machine clamp for battery shell production

Abstract

The utility model relates to the technical field of fixture, especially relates to a tension testing machine clamp for battery shell production. Including base, the upper surface of base is provided with the recess for accommodating sample head, the recess narrower one end penetrates the side surface of base, the compression assembly includes fixed plate, the fixed plate is rotatoryly connected with the one end of swingle arm, the other end of swingle arm is provided with the notch that penetrates its upper and lower surface, the middle part of swingle arm is provided with the long hole that penetrates its front and back two sides, the both sides of compression plate upper surface all are provided with lug plate, the top of lug plate is provided with first through -hole, the pin shaft is through this two first through -hole and long hole simultaneously, the fixed plate sets up on the base and is located one side of recess, the first threaded hole is seted up on the base in the side of recess away from fixed plate, and the first bolt is connected with first threaded hole after penetrating the notch downward, and the compression plate can make the head of one end of sample compress tightly in recess. The utility model is relatively simple to operate.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a tensile testing machine fixture for battery casing production. Background Technology

[0002] The battery casing is made of aluminum sheet through stamping and stretching. After the raw aluminum sheet arrives at the factory, it needs to undergo a tensile test to check whether its tensile strength is up to standard. Figure 4 The image shows a specimen taken from a raw aluminum plate for tensile testing. It has wider ends and a narrower middle section, requiring a clamp to secure it to the tensile testing machine during testing. This application provides a clamp for a tensile testing machine used in battery casing production to... Figure 4 The specimen shown is fixed on a tensile testing machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a tensile testing machine fixture for battery casing production, which addresses the above-mentioned technical deficiencies.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a tensile testing machine fixture for battery casing production, including a base, the upper surface of which is provided with a groove for accommodating the head of the sample, the narrower end of which penetrates through the side of the base, the clamping assembly including a fixing plate, the fixing plate being rotatably connected to one end of a rotating arm, the other end of which is provided with a notch penetrating through its upper and lower surfaces, the middle of which is provided with an elongated hole penetrating through its front and rear sides, the upper surface of the pressure plate being provided with ear plates on both sides, the top of which is provided with a first through hole, a pin passing through both first through holes and the elongated hole, the fixing plate being disposed on the base and located on one side of the groove, the base being provided with a first threaded hole on the side of the groove away from the fixing plate, a first bolt passing downward through the notch and connecting to the first threaded hole, which allows the pressure plate to press the head of one end of the sample into the groove.

[0005] To further optimize this technical solution, the notch extends through the end of the rotating arm away from the fixed plate.

[0006] To further optimize this technical solution, the fixing plate is provided with second through holes on both sides, and the base is provided with two second threaded holes on the side of the groove away from the first threaded hole. The second bolt passes down through the second through hole and connects with the second threaded hole.

[0007] To further optimize this technical solution, stepped holes are provided at all four corners of the base to fix the base onto the tensile testing machine.

[0008] Compared with the prior art, the present invention has the following advantages: the pressure plate can rotate relative to the rotating arm and can move in the length direction of the rotating arm, so that when the rotating arm rotates to press the sample head, the pressure plate can enter the groove. After the pressure plate enters the groove, when the rotating arm continues to rotate, the pressure plate can rotate and move relative to the rotating arm, so that the pressure plate can press the sample head into the groove. Then, the first bolt is passed through the notch and connected to the first threaded hole and tightened to fix one end of the sample. The operation is relatively simple. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a tensile testing machine fixture for battery casing production.

[0010] Figure 2 This is a schematic diagram of the clamping assembly.

[0011] Figure 3 This is a schematic diagram of the structure of the device after it is installed on a tensile testing machine.

[0012] Figure 4 This is a schematic diagram of the structure of a specimen used for tensile testing.

[0013] In the diagram: 1. Base; 11. Groove; 2. Clamping assembly; 21. Fixing plate; 22. Rotating arm; 221. Long hole; 222. Notch; 3. Pressure plate; 31. Ear plate. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0015] Detailed implementation method: combined with Figure 1-3As shown, a tensile testing machine fixture for battery casing production includes a base 1. The upper surface of the base 1 has a groove 11 for accommodating the head of a sample. The narrower end of the groove 11 penetrates the side of the base 1. The depth of the groove 11 is greater than the thickness of the sample. The shape of the groove 11 matches the shape of the sample head. A clamping assembly 2 includes a fixing plate 21, which is rotatably connected to one end of a rotating arm 22. The other end of the rotating arm 22 has a notch 222 penetrating its upper and lower surfaces. The middle of the rotating arm 22 has an elongated hole 221 penetrating its front and rear sides. The upper surface of the pressure plate 3... Both sides are provided with ear plates 31, and the top of the ear plates 31 is provided with a first through hole. The pin passes through both first through holes and the elongated hole 221, so that the pressure plate 3 can rotate relative to the rotating arm 22 and move in the length direction of the rotating arm 22. The shape of the pressure plate 3 matches the shape of the groove 11. The fixing plate 21 is provided on the base 1 and located on one side of the groove 11. The base 1 is provided with a first threaded hole on the side of the groove 11 away from the fixing plate 21. The first bolt passes downward through the notch 222 and connects with the first threaded hole, so that the pressure plate 3 can press the head of one end of the sample tightly in the groove 11. In use, combined with Figure 3 As shown, one of the two fixtures of this application is fixed to one end of the tensile testing machine, and the other is fixed to the moving platform of the tensile testing machine. The two fixtures have their side openings of the groove 11 close to each other. The moving platform can move under the drive of the screw. For ease of operation, the second fixture is a mirror image of the first fixture (it can also be a non-mirror image, that is, the two fixtures have the same structure, and after installation, the two fixtures are axially symmetrical, but at this time, the notch 222 on one fixture is located on the side closer to the operator, and the notch 222 on the other fixture is located on the side farther from the operator). Then, rotate the rotating arm 22 backward so that the pressure plate 3 does not press itself into the groove 11 or block the groove 11. Then adjust the position of the moving seat so that both ends of the sample can be placed into the two grooves 11 at the same time. Then place the sample and then rotate the rotating arm 22 forward. Figure 1 (The rotation is counterclockwise). When the pressure plate 3 is about to contact the top surface of the base 1, move and rotate the pressure plate 3 so that it can enter the groove 11. Continue to rotate the rotating arm 22 so that the pressure plate 3 presses the head of the sample in the groove 11. Then, use the first bolt to pass down through the notch 222 and connect to the first threaded hole and tighten it so that the head of the sample is pressed into the groove 11. After both heads of the sample are pressed, a tensile test can be performed.

[0016] Furthermore, the notch 222 extends through the end of the rotating arm 22 away from the fixed plate 21, and the notch 222 is relatively long.

[0017] Furthermore, the fixing plate 21 has second through holes on both sides, and the base 1 has two second threaded holes on the side of the groove 11 away from the first threaded hole. The second bolt passes downward through the second through holes and connects with the second threaded holes. When the sample is thick, the second bolt can be loosened slightly, allowing the fixing plate 21 to move upward a certain distance, so as to prevent the end of the rotating arm 22 with the notch 222 from tilting too high after the sample is clamped. When testing samples of the same thickness in the same batch, the second bolt does not need to be adjusted midway.

[0018] Furthermore, step holes are provided at all four corners of the base 1 to fix the base onto the tensile testing machine.

[0019] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tensile testing machine fixture for battery casing production, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a groove (11) for accommodating the sample head. The narrower end of the groove (11) penetrates the side of the base (1). The clamping assembly (2) includes a fixing plate (21). The fixing plate (21) is rotatably connected to one end of the rotating arm (22). The other end of the rotating arm (22) is provided with a notch (222) penetrating its upper and lower surfaces. The middle part of the rotating arm (22) is provided with an elongated hole (221) penetrating its front and rear sides. Both sides of the upper surface of the pressure plate (3) are provided with... An ear plate (31) is provided, and a first through hole is provided on the top of the ear plate (31). The pin passes through both first through holes and the elongated hole (221). The fixing plate (21) is provided on the base (1) and located on one side of the groove (11). A first threaded hole is provided on the side of the groove (11) away from the fixing plate (21) on the base (1). After the first bolt passes down through the notch (222) and connects with the first threaded hole, the pressure plate (3) can press the head of one end of the sample into the groove (11).

2. The tensile testing machine fixture for battery casing production according to claim 1, characterized in that: The notch (222) extends through the end of the rotating arm (22) away from the fixed plate (21).

3. A tensile testing machine fixture for battery casing production according to any one of claims 1-2, characterized in that: The fixing plate (21) has a second through hole on both sides. The base (1) has two second threaded holes on the side of the groove (11) away from the first threaded hole. The second bolt passes through the second through hole and connects to the second threaded hole.

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