Capacitor pin pull test device

Abstract

The utility model relates to the technical field of capacitor pin test, and disclose a kind of capacitor pin pull-out test device, comprising: test table, as the basic support structure of device;First air cylinder, installation is in test table, for providing the main power of pull-out test;Clamp plate, fixedly installed in the end of first air cylinder.The capacitor pin pull-out test device, provides pulling force by main auxiliary air cylinder cooperation, can stabilize the required force of output test, ensure that pulling force transmission is accurate and reliable;With the cooperation of arc block and arc groove, reduce the friction resistance when component relative activity, avoid the fluctuation of pulling force, ensure that the test process is carried out smoothly;Spring outside pin can effectively buffer instantaneous impact force, both protect device components from damage, further maintain pulling force stability;While in the upward pulling force test, straight and other direction pulling force test can be realized, so that pulling force accurately acts on test site, effectively improve the accuracy of pull-out test data.

Description

Technical Field

[0001] This utility model relates to the field of capacitor pin testing technology, specifically a capacitor pin pull-out testing device. Background Technology

[0002] In capacitor production and application, the connection strength between the leads and the capacitor body is a key indicator affecting the reliability of the capacitor. Therefore, pull-out tests are necessary to verify this connection performance. However, existing capacitor lead pull-out testing devices have many shortcomings: some devices have poor clamping stability for the capacitor or leads, and slippage is prone to occur during the test, causing the pull force to not be accurately applied to the test area, affecting the accuracy of the test data; some devices have unstable pull force transmission, and the frictional resistance is large when the components move relative to each other, which easily produces pull force fluctuations, further reducing the reliability of the test results; some devices lack effective buffer structures, and the instantaneous impact force during the test can easily damage the device components or capacitor samples. In addition, some devices have insufficient operational safety and a narrow range of applications, making it difficult to adapt to the testing needs of capacitors of different specifications and failing to meet the requirements of efficient and accurate testing operations.

[0003] To address this issue, we propose a capacitor pin pull-out test device. Utility Model Content

[0004] The purpose of this invention is to provide a capacitor pin pull-out test device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a capacitor lead pull-out test device, comprising: The test bench serves as the basic support structure for the device. The first cylinder, mounted on the test bench, is used to provide the main power for the pull-out test; The clamp is fixedly installed at the end of the first cylinder; The fixing plate is fixed to the test bench as an auxiliary fixing structure; The L-shaped fixing rod is connected to the fixing plate at one end and extends to the top of the test area at the other end. An auxiliary plate, fixed to the end of the L-shaped fixing rod, is used for auxiliary positioning and support; The L-shaped mounting plate is fixed to the test bench or auxiliary plate and is used to install the second cylinder. The second cylinder, mounted on the L-shaped fixed plate, is used to provide auxiliary pulling force or positioning; A connecting plate, connected to the piston end of the second cylinder, is used to transmit auxiliary pulling force; A clamp, mounted on a connecting plate, is used to assist in holding a capacitor or its pins; An arc-shaped block is fixedly installed on the side of the connecting plate, and the arc-shaped block is engaged with the arc-shaped groove opened on the side of the auxiliary plate. The first mounting block and the second mounting block are connected by a pin. The first mounting block is fixedly mounted to the second cylinder, and the second mounting block is fixedly mounted to the connecting plate.

[0006] Preferably, the bottom surface of the test platform is fixedly equipped with four support legs. The four support legs are respectively set at the bottom of the four corners of the test platform to stably support the test platform and avoid the impact of platform shaking on the accuracy of data during testing. At the same time, it raises the test platform off the ground, reducing the impact of ground moisture and impurities on the bottom of the device, and also makes it convenient for hands or tools to be reached under the platform during operation.

[0007] Preferably, the first cylinder is covered with a protective cover, the bottom of which is fixedly installed on the top surface of the test bench to isolate dust, debris and external impacts, protect the internal structure of the cylinder and extend its service life; at the same time, it prevents personnel from accidentally touching the moving parts of the cylinder during the test and improves operational safety.

[0008] Preferably, a rubber pad is fixedly installed on the side of the clamp away from the first cylinder to increase the friction between the clamp and the capacitor and prevent the capacitor from slipping when clamped; the soft rubber can buffer the clamping force and avoid the clamp from hard contact damaging the capacitor shell or pins, thus ensuring the integrity of the test sample.

[0009] Preferably, the second cylinder is fixedly installed on the auxiliary plate via an L-shaped fixing plate to achieve stable positioning of the second cylinder and prevent it from shifting when providing auxiliary pulling force; this ensures that the auxiliary pulling force is transmitted along the preset direction and improves the accuracy of the force value in the pull-out test.

[0010] Preferably, the surfaces of both the arc-shaped block and the arc-shaped groove are smoothed to reduce frictional resistance when they move relative to each other, making the connecting plate move more smoothly with the second cylinder, avoiding jamming that causes tension fluctuations, and ensuring a stable testing process.

[0011] Preferably, a spring is sleeved on the outside of the pin. One end of the spring is fixedly installed to the first mounting block, and the other end of the spring is fixedly installed to the second mounting block. This buffers the instantaneous tension transmitted by the second cylinder and prevents the impact force from damaging the mounting block or connecting plate. After the test, the two mounting blocks can be automatically reset, eliminating the need for manual adjustment and improving testing efficiency.

[0012] This invention provides a capacitor lead pull-out testing device. This capacitor lead pull-out testing device has the following advantages: This capacitor pin pull-out testing device provides pulling force through the coordinated operation of main and auxiliary cylinders, ensuring a stable output of the required force and accurate and reliable force transmission. The use of arc-shaped blocks and grooves reduces frictional resistance during relative movement of components, preventing fluctuations in pulling force and ensuring a smooth testing process. The external spring effectively buffers instantaneous impact forces, protecting the device components from damage and further maintaining pulling force stability. Simultaneously, during upward pulling force testing, it can perform straight-line and other directional pulling force tests, ensuring the pulling force is accurately applied to the test area and effectively improving the accuracy of the pull-out test data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a capacitor pin pull-out test device according to the present invention; Figure 2 This utility model relates to a capacitor lead pull-out test device. Figure 1 A schematic diagram of the isometric structure; Figure 3 This utility model relates to a capacitor lead pull-out test device. Figure 2 Enlarged structural diagram at point A in the diagram; Figure 4 This utility model relates to a capacitor lead pull-out test device. Figure 1 A schematic diagram of the rear view plane structure.

[0014] In the diagram: 1. Test stand; 2. Support leg; 3. First cylinder; 4. Protective cover; 5. Clamping plate; 6. Rubber pad; 7. Fixing plate; 8. L-shaped fixing rod; 9. Auxiliary plate; 10. L-shaped fixing plate; 11. Second cylinder; 12. Connecting plate; 13. Clamp; 14. Arc block; 15. Arc groove; 16. First mounting block; 17. Second mounting block; 18. Pin; 19. Spring. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0016] like Figure 1-4 As shown, this utility model provides a technical solution: a capacitor lead pull-out test device, comprising: Test platform 1 serves as the basic support structure of the device. Four support legs 2 are fixedly installed on the bottom surface of test platform 1. The four support legs 2 are respectively set at the bottom of the four corners of test platform 1 to stably support test platform 1 and prevent the data accuracy from being affected by the shaking of the platform during the test. At the same time, it keeps test platform 1 off the ground, reducing the impact of ground moisture and impurities on the bottom of the device, and also making it convenient for hands or tools to be reached under the platform during operation. The first cylinder 3 is installed on the test bench 1 and is used to provide the main power for the pull-out test. The first cylinder 3 is covered with a protective cover 4. The bottom end of the protective cover 4 is fixedly installed on the top surface of the test bench 1 to isolate dust, debris and external impacts, protect the internal structure of the cylinder and extend the service life of the cylinder; at the same time, it prevents personnel from accidentally touching the moving parts of the cylinder during the test and improves the safety of operation. The clamping plate 5 is fixedly installed at the end of the first cylinder 3. A rubber pad 6 is fixedly installed on the side of the clamping plate 5 away from the first cylinder 3 to increase the friction between the clamping plate 5 and the capacitor and prevent the capacitor from slipping when clamped. The soft rubber can buffer the clamping force and prevent the clamping plate 5 from hard contacting and damaging the capacitor shell or pins, thus ensuring the integrity of the test sample. Fixing plate 7 is fixed on test bench 1 as an auxiliary fixing structure; The L-shaped fixing rod 8 is connected at one end to the fixing plate 7 and extends to the top of the test area at the other end. Auxiliary plate 9, fixed to the end of L-shaped fixing rod 8, is used for auxiliary positioning and support; The second cylinder 11 is used to provide auxiliary pulling force or positioning. The second cylinder 11 is fixedly installed on the auxiliary plate 9 through the L-shaped fixing plate 10 to achieve stable positioning of the second cylinder 11 and prevent it from shifting when providing auxiliary pulling force; ensure that the auxiliary pulling force is transmitted along the preset direction and improve the accuracy of the force value in the pull-out test. The connecting plate 12 is connected to the piston end of the second cylinder 11 and is used to transmit auxiliary pulling force; Clamp 13, mounted on connecting plate 12, is used to assist in clamping capacitors or their pins; The arc-shaped block 14 is fixedly installed on the side of the connecting plate 12, and the arc-shaped block 14 is engaged with the arc-shaped groove 15 opened on the side of the auxiliary plate 9. The surfaces of the arc-shaped block 14 and the arc-shaped groove 15 are both smoothed to reduce the frictional resistance when the two move relative to each other, so that the connecting plate moves more smoothly with the second cylinder 11, avoiding jamming and tension fluctuation, and ensuring a stable test process. The first mounting block 16 and the second mounting block 17 are movably connected by a pin 18. The first mounting block 16 is fixedly mounted to the second cylinder 11, and the second mounting block 17 is fixedly mounted to the connecting plate 12. A spring 19 is sleeved on the outside of the pin 18. One end of the spring 19 is fixedly mounted to the first mounting block 16, and the other end of the spring 19 is fixedly mounted to the second mounting block 17. This buffers the instantaneous tension transmitted by the second cylinder 1, preventing impact damage to the mounting blocks or the connecting plate. After testing, the two mounting blocks can be automatically reset, eliminating the need for manual adjustment and improving testing efficiency.

[0017] When using this capacitor lead pull-out testing device, the capacitor to be tested is first placed on the test platform 1, with the capacitor body aligned with the clamping plate 5 and the capacitor leads aligned with the fixture 13. Then, the first cylinder 3 is activated, pushing the clamping plate 5 at its end towards the capacitor body. The rubber pad 6 on the side of the clamping plate 5 away from the first cylinder 3 adheres to the capacitor shell, achieving a stable clamping of the capacitor body. Simultaneously, the second cylinder 11, with the fixed support of the L-shaped fixing plate 10 and the auxiliary plate 9, drives the connecting plate 12 at the piston end to move the fixture 13 closer to and clamp the capacitor leads. During this process, the arc-shaped block 14 on the side of the connecting plate 12 slides synchronously within the arc-shaped groove 15 of the auxiliary plate 9, ensuring that the clamping direction of the fixture 13 and the clamping plate 5 is consistent. In the pull-out test phase, the first cylinder 3 provides the main pulling force, which drives the capacitor body through the clamping plate 5. The capacitor moves away from the pin, and the second cylinder 11 provides auxiliary pulling force. The pin moves in the opposite direction through the connecting plate 12 and the clamp 13. During this process, the first mounting block 16 and the second mounting block 17 are engaged by the pin 18. The spring 19 outside the pin 18 buffers the instantaneous impact force between the two mounting blocks. The arc block 14 and the smoothed arc groove 15 reduce relative friction to ensure smooth transmission of pulling force. At the same time, when testing the upward pulling force, it can achieve straight-line pulling force testing and pulling force testing in other directions. After the test, the first cylinder 3 and the second cylinder 11 are reset respectively. The spring 19 drives the first mounting block 16 and the second mounting block 17 to return to their initial positions. The arc block 14 is disengaged from the arc groove 15 with the connecting plate 12. The clamp 5 and the clamp 13 are released, and the tested capacitor is taken out, completing one pull-out test.

[0018] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A capacitive pin pull test device, characterized by, include: The test bench (1) serves as the basic support structure for the device; The first cylinder (3) is installed on the test bench (1) and is used to provide the main power for the pull-out test; The clamp (5) is fixedly installed at the end of the first cylinder (3); The fixing plate (7) is fixed on the test bench (1) as an auxiliary fixing structure; The L-shaped fixing rod (8) is connected to the fixing plate (7) at one end and extends to the top of the test area at the other end. The auxiliary plate (9) is fixed to the end of the L-shaped fixing rod (8) and is used for auxiliary positioning and support; The second cylinder (11) is used to provide auxiliary pulling force or positioning; The connecting plate (12) is connected to the piston end of the second cylinder (11) and is used to transmit auxiliary pulling force; The clamp (13) is mounted on the connecting plate (12) and is used to assist in clamping the capacitor or its pins; An arc-shaped block (14) is fixedly installed on the side of the connecting plate (12), and the arc-shaped block (14) is engaged with the arc-shaped groove (15) opened on the side of the auxiliary plate (9); The first mounting block (16) and the second mounting block (17) are connected by a pin (18). The first mounting block (16) is fixedly mounted to the second cylinder (11), and the second mounting block (17) is fixedly mounted to the connecting plate (12).

2. The capacitive pin pull test device of claim 1, wherein, The bottom surface of the test platform (1) is fixedly equipped with support legs (2), and there are four support legs (2). The four support legs (2) are respectively set at the bottom of the four corners of the test platform (1).

3. The capacitive pin pull test apparatus of claim 1, wherein, The first cylinder (3) is covered with a protective cover (4), and the bottom end of the protective cover (4) is fixedly installed on the top surface of the test bench (1).

4. The capacitive pin pull test apparatus of claim 1, wherein, A rubber pad (6) is fixedly installed on the side of the clamp (5) away from the first cylinder (3).

5. The capacitive pin pull test apparatus of claim 1, wherein, The second cylinder (11) is fixedly installed on the auxiliary plate (9) by means of the L-shaped fixing plate (10).

6. The capacitive pin pull test apparatus of claim 1, wherein, The surfaces of the arc-shaped block (14) and the arc-shaped groove (15) are both smoothed.

7. The capacitive pin pull testing device of claim 1, wherein, A spring (19) is fitted around the pin (18). One end of the spring (19) is fixedly installed with the first mounting block (16), and the other end of the spring (19) is fixedly installed with the second mounting block (17).

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