Knocking test fixture for battery structural member

Abstract

The utility model relates to the technical field of battery case test equipment, in particular to a battery structural member knocking test jig which comprises a base, supporting seats, a clamping assembly, a knocking assembly and an air cylinder, rotating discs are rotationally installed on the sections, close to each other, of a pair of supporting seats, and the clamping assembly is installed between the pair of rotating discs. Before the battery structural part is knocked for the second time, the shifting column is lifted upwards through the shifting plate, so that the shifting column drives the rotating disc to rotate, and the rotating disc is stopped by the ball rolling into the circular truncated cone groove after rotating for a half circle, and therefore the clamping plate and the battery structural part on the clamping plate are driven by the rotating disc to rotate for a half circle, and one-time overturning is completed; and the front air cylinder drives the knocking assembly through the ejector rod and drives the shifting plate to ascend and turn over through the sleeve at the same time, and an additional driving structure and driving operation are not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of battery casing testing equipment, and in particular to a battery structural component impact testing fixture. Background Technology

[0002] Currently, aluminum battery casings require cleaning after processing, followed by inspection for metal shavings. However, existing manufacturers rely on visual inspection, which is inefficient and makes quality control difficult.

[0003] A metal chip tester disclosed in the prior art (CN112558174A) includes a tester body, which includes a base. A fixing plate is fixedly connected to the base, and the fixing plate has a fixing groove for accommodating a thin film. Two fixing seats are fixedly installed on the base and are symmetrically arranged on both sides of the fixing plate. The inner side of each fixing seat protrudes to form a support portion, and the two fixing seats cooperate to form a positioning slot for positioning and supporting a battery casing. A bracket is fixedly connected to the base, and at least one test ball is installed on the bracket. A drive component for driving the test ball to strike the battery casing is also installed on the bracket.

[0004] This tester has a simple structure and low manufacturing cost, but it cannot tap the bottom of the battery casing. When the top of the battery is tapped, the metal shavings that bounce up can fall back down and re-attach to the top, making it impossible to accurately detect the metal shavings on the top and resulting in an incomplete detection. Utility Model Content

[0005] The purpose of this invention is to solve the shortcomings of existing technologies, such as the inability to strike the bottom of the battery casing, and the fact that metal chips that bounce up when striking the top of the battery may fall back down and adhere to the top, making it impossible to accurately detect the metal chips on the top. Therefore, this invention proposes a battery structural component striking test fixture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a battery structural component impact test fixture, including a base, support seats, clamping assembly, impact assembly, and cylinder. A pair of support seats are rotatably mounted on their cross-sections close to each other, and a clamping assembly is installed between the pair of turntables.

[0008] Each pair of turntables has an actuating component and a positioning component on its end faces away from each other, and the actuating component and the positioning component are respectively connected to a support base and a cylinder.

[0009] Furthermore, the actuation assembly includes a pair of actuating columns fixed to the side of the front turntable and a push rod fixed to the upper end of the cylinder. The front end of the push rod is fixedly connected to a sleeve, and an actuating plate for actuating the upper actuating columns is inserted into the sleeve through a pop-out structure. The right end of the actuating plate has a downward chamfer.

[0010] Furthermore, the pop-out structure includes a limiting groove formed on the outer wall of the sleeve, and the inside of the limiting groove is provided with two mutually repelling magnets, and the left and right magnets are respectively fixedly connected to the sleeve and the actuating plate.

[0011] Furthermore, the positioning component includes a pair of frustum grooves formed on the front end face of the front turntable and a pair of balls installed on the rear end of the front support seat through a rear pressure structure. The balls cooperate with the frustum grooves, and the rear end of the balls rolls to connect the wall of the frustum groove and the turntable.

[0012] Furthermore, the rear pressure structure includes an insertion hole on the front end face of the support base, and a positioning rod with a protrusion on the outer wall is inserted into the insertion hole. The rear end of the positioning rod passes through the support base and has a spherical groove, and a ball is rotatably installed in the spherical groove. A spring and a push tube with a threaded connection to the support base are sleeved on the outer wall of the positioning rod. The rear end of the push tube abuts against the spring, and the rear end of the spring abuts against the protrusion.

[0013] Furthermore, the clamping assembly includes a clamping plate disposed between a pair of turntables, and a driving structure is provided between the pair of clamping plates. Dovetail sliders are fixed at both ends of the pair of clamping plates. A pair of dovetail grooves are opened on the inner side of the pair of turntables, and dovetail sliders are slidably installed in the dovetail grooves.

[0014] Furthermore, the drive structure includes mounting slots opened in a pair of clamping plates, and push columns are fixedly provided in the mounting slots. A miniature cylinder is fixedly installed on the front end face of the front turntable. The telescopic rod of the miniature cylinder passes through the turntable and is fixedly connected to a drive plate located in the mounting slot. The upper end face of the mounting slot is symmetrically provided with inclined slots, and two push columns are slidably arranged in the two inclined slots respectively.

[0015] Furthermore, the striking assembly includes a support fixed to the top of the base, and a striking element is rotatably mounted on the top of the support.

[0016] The present invention provides a battery structural component impact testing fixture with the following advantages: Before the second impact on the battery structural component, the actuating plate lifts the actuating column upward, causing the actuating column to drive the turntable to rotate. After rotating half a revolution, the column is stopped by the balls rolling into the frustum groove. Thus, the turntable drives the clamping plate and the battery structural component on it to rotate half a revolution, completing one flip, so that the other side of the battery structural component can be impact tested, making the test more comprehensive. In addition, the front cylinder drives the impact component through the push rod and simultaneously drives the actuating plate to rise through the sleeve for flipping, without the need for an additional drive structure and drive operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an enlarged view of area A of this utility model;

[0019] Figure 3 This is a schematic diagram of the toggle assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the clamping assembly structure of this utility model.

[0021] In the diagram: 1. Base; 2. Support seat; 3. Clamping assembly; 31. Clamping plate; 32. Dovetail groove; 33. Dovetail slider; 34. Drive structure; 341. Mounting groove; 342. Push column; 343. Miniature cylinder; 344. Drive plate; 345. Inclined groove; 4. Striking assembly; 41. Support; 42. Striking element; 5. Cylinder; 6. Turntable; 8. Actuating assembly; 81. Actuating column; 82. Top rod; 83. Sleeve; 84. Pop-out structure; 841. Limiting groove; 842. Magnet; 85. Actuating plate; 9. Positioning assembly; 91. Frustum groove; 92. Rear pressing structure; 921. Insertion hole; 922. Protrusion; 923. Positioning rod; 924. Push tube; 925. Spring; 93. Ball bearing. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 As an embodiment of this utility model, a battery structural component impact test fixture is disclosed, including a base 1, a support 2, a clamping assembly 3, an impact assembly 4, and a cylinder 5. The feature is that a turntable 6 is rotatably mounted on the cross-sections of a pair of support 2 close to each other, and a clamping assembly 3 is installed between the pair of turntables 6.

[0024] In use, the battery structure is clamped and fixed on the clamping assembly 3, and then the cylinder 5 drives the striking assembly 4 to strike the battery structure, so that the metal chips at the bottom are shaken off onto the detection device on the lower base 1. After one strike, the turntable 6 drives the clamping assembly 3 and the battery structure to rotate half a turn, so that the upper surface of the battery structure flips downward. The striking assembly 4 strikes the battery structure again, so that the metal chips on the other side are shaken off onto the detection device on the lower base 1.

[0025] A pair of turntables 6 are provided with a toggle assembly 8 and a positioning assembly 9 on their ends away from each other, and the toggle assembly 8 and the positioning assembly 9 are respectively connected to the support base 2 and the cylinder 5;

[0026] During testing, cylinder 5 drives the actuating component 8 to rotate turntable 6. After turntable 6 rotates half a turn, positioning component 9 positions turntable 6 so that before each strike, turntable 6 can flip clamping component 3 and battery structure on it. At the same time, cylinder 5 drives striking component 4 and actuating component 8 to rotate turntable 6 half a turn.

[0027] Specifically, the actuation assembly 8 includes a pair of actuation posts 81 fixed to the side of the front turntable 6 and a push rod 82 fixed to the upper end of the cylinder 5. The front end of the push rod 82 is fixedly connected to a sleeve 83. The sleeve 83 is inserted into the inside through a pop-out structure 84 to actuation plate 85 for actuating the actuation posts 81. The actuation plate 85 has a lower chamfer on the right end.

[0028] After one strike, the cylinder 5 drives the push rod 82 to rise and lift the striking piece 42 for a second strike. At the same time, the push rod 82 drives the actuating plate 85 to rise through the sleeve 83. The actuating plate 85 lifts the actuating column 81 upward, causing the actuating column 81 to slide to the right on the actuating plate 85 and rotate, driving the turntable 6 to rotate. This ensures that the actuating column 81 drives the turntable 6 to rotate more than half a revolution. The push rod 82 forces the actuating plate 85 to rise through the sleeve 83, causing the ball 93 to roll out of the frustum groove 91 along the inclined surface of the frustum groove 91 and press the positioning rod 923 forward, ready for the next positioning.

[0029] Furthermore, the pop-out structure 84 includes a limiting groove 841 formed on the outer wall of the sleeve 83. The limiting groove 841 is provided with two mutually repelling magnets 842, and the left and right magnets 842 are respectively fixedly connected to the sleeve 83 and the toggle plate 85.

[0030] After one strike, cylinder 5 drives push rod 82 to descend and reset, sleeve 83 drives actuating plate 85 to descend. Actuating plate 85 descends until the lower chamfer abuts against actuating post 81. Due to the positioning structure of turntable 6 and the insufficient repulsive force between the two magnets 842 to push actuating post 81, actuating plate 85 moves to the left and retracts sleeve 83. After moving below actuating post 81, it pops out again below actuating post 81 due to the repulsive force between the two magnets 842, so that actuating post 81 can be raised during the second strike.

[0031] Specifically, the positioning component 9 includes a pair of frustum grooves 91 formed on the front end face of the front turntable 6 and a pair of balls 93 installed on the rear end of the front support seat 2 through a rear pressure structure 92. The balls 93 cooperate with the frustum grooves 91, and the rear end of the balls 93 rolls to connect the groove wall of the frustum groove 91 and the turntable 6.

[0032] The rear pressure structure 92 applies a rear thrust to the ball 93, causing it to be pushed against the front end face of the rotating turntable 6. When the turntable 6 rotates half a turn and the rotation speed decreases, the rear thrust of the rear pressure structure 92 causes the ball 93 to roll and enter the frustum groove 91. The ball 93 and the frustum groove 91 form a locking structure, preventing the turntable 6 from continuing to rotate. Thus, each time it is turned, the turntable 6 can only rotate half a turn to complete one flip. Before the flip, the turntable 6 is forced to rotate by the cylinder 5 with the help of the turning component 8.

[0033] Furthermore, the rear pressure structure 92 includes an insertion hole 921 opened on the front end face of the support base 2, and a positioning rod 923 with a protrusion 922 on the outer wall is inserted into the insertion hole 921. The rear end of the positioning rod 923 passes through the support base 2 and has a spherical groove. A ball bearing 93 is rotatably installed in the spherical groove. A spring 925 and a push tube 924 with a threaded connection to the support base 2 are sleeved on the outer wall of the positioning rod 923. The rear end of the push tube 924 abuts against the spring 925, and the rear end of the spring 925 abuts against the protrusion 922.

[0034] The positioning rod 923 and its protrusion 922 are pushed backward by the spring force of the spring 925. The positioning rod 923 can move back and forth with the ball 93, so that the ball 93 can always roll against the inner wall of the truncated groove 91 and the front end surface of the turntable 6. The push tube 924 of the support seat 2 can be rotated by rotating the threaded connection of the outer wall to move the push tube 924 back and forth to compress or release the spring 925. By changing the compression length of the spring 925, the pushing force on the ball 93 can be adjusted to maintain the positioning function of the ball 93 while preventing the actuating column 81 from being pushed down by the descending actuating plate 85.

[0035] Specifically, the clamping assembly 3 includes a clamping plate 31 disposed between a pair of turntables 6, and a driving structure 34 is provided between the pair of clamping plates 31. Dovetail sliders 33 are fixed at both ends of the pair of clamping plates 31. A pair of dovetail grooves 32 are opened on the inner side of the pair of turntables 6, and the dovetail sliders 33 are slidably installed in the dovetail grooves 32.

[0036] Before and after the test, the two clamping plates 31 are moved closer and further apart by the drive structure 34, thereby clamping and releasing the battery structure component placed between the two clamping plates 31.

[0037] In this embodiment, the drive structure 34 includes a mounting groove 341 opened inside a pair of clamping plates 31, and a push column 342 is fixedly provided in the mounting groove 341. A miniature cylinder 343 is fixedly installed on the front end face of the turntable 6. The telescopic rod of the miniature cylinder 343 passes through the turntable 6 and is fixedly connected to a drive plate 344 located in the mounting groove 341. An inclined groove 345 is symmetrically opened on the upper end face of the mounting groove 341, and two push columns 342 are slidably arranged in the two inclined grooves 345 respectively.

[0038] When clamping or releasing the battery structure, the micro cylinder 343 drives the drive plate 344 to move left and right, thereby pushing the two push columns 342 closer or further away through the left and right movement of the two symmetrically arranged inclined slots 345, which in turn drives the two clamping plates 31 closer and further away.

[0039] Specifically, the striking assembly 4 includes a support 41 fixed to the top of the base 1, and a striking element 42 is rotatably mounted on the top of the support 41. In use, the cylinder 5 drives the top rod 82 to rise and push the striking element 42 upward, so that the left end of the striking element 42 rotates around the pivot on the support 41 while the right end rises. After the cylinder 5 drives the top rod 82 to reset, it falls down to strike the battery structure.

[0040] In summary, after the first tapping of the upper part of the battery structure, the cylinder 5 drives the sleeve 83 via the push rod 82 to raise the actuating plate 85. The actuating plate 85 lifts the actuating column 81, causing the actuating column 81 to rotate the turntable 6. The rotation speed decreases until the ball 93 rolls and enters the frustum groove 91. The ball 93 and the frustum groove 91 form a locking structure, preventing the turntable 6 from continuing to rotate. The turntable 6 drives the clamping plate 31 and the battery structure on it to rotate half a revolution, completing one flip, so that the other side of the battery structure can be tapped.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery structural component impact testing fixture, comprising a base (1), a support (2), a clamping assembly (3), an impact assembly (4), and a cylinder (5), characterized in that: A pair of said support bases (2) are rotatably mounted on their cross sections close to each other, and a clamping assembly (3) is installed between the pair of turntables (6). The two turntables (6) are provided with a toggle assembly (8) and a positioning assembly (9) on their opposite ends, and the toggle assembly (8) and the positioning assembly (9) are respectively connected to the support base (2) and the cylinder (5).

2. The battery structural component impact test fixture according to claim 1, characterized in that: The actuation assembly (8) includes a pair of actuation pins (81) fixed to the side of the front turntable (6) and a push rod (82) fixed to the upper end of the cylinder (5). The front end of the push rod (82) is fixedly connected to a sleeve (83). The sleeve (83) is inserted into the interior through a pop-out structure (84) for actuating plate (85) for actuating the pins (81) upwards. The right end of the actuating plate (85) is chamfered.

3. The battery structural component impact test fixture according to claim 2, characterized in that: The pop-out structure (84) includes a limiting groove (841) opened on the outer wall of the sleeve (83). The limiting groove (841) is provided with two mutually repelling magnets (842), and the left and right magnets (842) are respectively fixedly connected to the sleeve (83) and the toggle plate (85).

4. The battery structural component impact test fixture according to claim 1, characterized in that: The positioning component (9) includes a pair of frustum grooves (91) opened on the front end face of the front turntable (6) and a pair of balls (93) installed on the rear end of the front support base (2) through a rear pressure structure (92). The balls (93) cooperate with the frustum grooves (91), and the rear end of the balls (93) rolls to connect the wall of the frustum groove (91) and the turntable (6).

5. The battery structural component impact test fixture according to claim 4, characterized in that: The rear pressure structure (92) includes an insertion hole (921) on the front end face of the support base (2), and a positioning rod (923) with a protrusion (922) on the outer wall is inserted into the insertion hole (921). The rear end of the positioning rod (923) passes through the support base (2) and has a spherical groove. A ball bearing (93) is rotatably installed in the spherical groove. A spring (925) and a push tube (924) with a threaded connection to the support base (2) are sleeved on the outer wall of the positioning rod (923). The rear end of the push tube (924) abuts against the spring (925), and the rear end of the spring (925) abuts against the protrusion (922).

6. The battery structural component impact test fixture according to claim 1, characterized in that: The clamping assembly (3) includes a clamping plate (31) disposed between a pair of turntables (6), and a driving structure (34) is provided between the pair of clamping plates (31). Dovetail sliders (33) are fixed at both ends of the pair of clamping plates (31). A pair of dovetail grooves (32) are opened on the inner side of the pair of turntables (6), and the dovetail sliders (33) are slidably installed in the dovetail grooves (32).

7. The battery structural component impact test fixture according to claim 6, characterized in that: The drive structure (34) includes a mounting groove (341) opened inside a pair of clamping plates (31), and a push column (342) is fixedly provided in the mounting groove (341). A miniature cylinder (343) is fixedly installed on the front end face of the turntable (6). The telescopic rod of the miniature cylinder (343) passes through the turntable (6) and is fixedly connected to a drive plate (344) located in the mounting groove (341). The upper end face of the mounting groove (341) is symmetrically provided with inclined grooves (345), and two push columns (342) are slidably arranged in the two inclined grooves (345).

8. The battery structural component impact test fixture according to claim 1, characterized in that: The striking assembly (4) includes a support (41) fixed to the top of the base (1), and a striking element (42) is rotatably mounted on the top of the support (41).

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