Compact floating high current clamp

Abstract

The utility model discloses a compact floating type high current clamp, including base, the base is fixedly installed with lock fixture, and lock fixture can lock and pay the product of detection, and the both ends of base are provided with high current clamp respectively, and each high current clamp includes: two horizontal settings upper clamp, lower clamp, and the flexible cable is locked and fixed on the upper clamp, longitudinal floating guide rail, and the upper clamp and lower clamp are slidably arranged on the longitudinal floating guide rail through the first sliding block respectively, and the upper clamp and lower clamp are arranged in up and down distribution, pneumatic tendon, and the pneumatic tendon is vertically arranged, and when the pneumatic tendon is inflated, drives the upper clamp and lower clamp to move towards each other, reset spring, and is installed between the upper clamp and lower clamp, and feeding cylinder. The compact floating type high current clamp of improving test efficiency, realizes the compact floating type high current clamp of scale and automation production. The utility model improves test efficiency, realizes scale and automation production.

Description

Technical Field

[0001] This utility model relates to the field of high-current test clamps for electrical components, and in particular to a compact floating high-current clamp. Background Technology

[0002] High-current testing is a crucial step in verifying the reliability and performance of electronic components. Its core function is to simulate the electrical characteristics, thermal stability, and durability of components under rated or extreme high-current conditions, ensuring their safe and stable operation in end-use equipment (such as power supplies, new energy vehicles, and industrial control systems). Traditionally, high-current functional testing of some electrical components (such as circuit breakers) involves workers using wrenches to connect wires to electrodes, which is inefficient. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a compact floating high-current clamp that improves testing efficiency and enables large-scale and automated production.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a compact floating high-current clamp, including a base, on which a locking fixture is fixedly installed. The locking fixture can lock the product to be tested. High-current clamps are respectively arranged at both ends of the base. Each high-current clamp includes: two horizontally arranged upper clamps and lower clamps, on which a flexible cable is locked and fixed; a longitudinal floating guide rail, on which the upper clamps and lower clamps are slidably arranged via a first slider, and the upper clamps and lower clamps are arranged vertically; a pneumatic tendon, which is vertically arranged. When the pneumatic tendon is inflated, it drives the upper clamps and lower clamps to move towards each other; a return spring, installed between the upper clamps and lower clamps. When the pneumatic tendon is deflated, the return spring forces the upper clamps and lower clamps to move in the opposite direction; and a feeding cylinder, which drives the longitudinal floating guide rail to move towards or away from the locking fixture.

[0005] The beneficial effects of this utility model are as follows: The structure is compact. The product to be tested is bolted onto the locking fixture, and the high-current clamps at both ends move towards the detection position of the recess on the product to be tested to achieve the test. This application uses pneumatic tendons to drive the upper and lower clamps to move towards each other, and is equipped with a floating guide rail. The distance the upper and lower clamps move towards each other is adjusted by the pressure of the pneumatic tendons. After clamping the detection position, the floating guide rail allows the upper and lower clamps to move up and down synchronously, thus adapting to different types of products to be tested. The horizontal position (front-back, left-right) of the detection position remains unchanged for different types of products, but the longitudinal position of the detection position is slightly different, such as the thickness and height of the detection position (the longitudinal height difference is only a few millimeters). During testing, a large current can be applied, such as a maximum current of 2500 Ω. The application uses standard pneumatic components (pneumatic tendons) to achieve a stable clamping force of 600N in a compact space and to achieve stable energized current.

[0006] Preferably, a vertical connecting plate is fixedly installed on the base, a pair of horizontal guide rails are fixedly installed on the upper end of the connecting plate, a first mounting plate is installed on the back of the longitudinal floating guide rail, the first mounting plate is slidably installed on the pair of horizontal guide rails by two second sliders respectively, the feeding cylinder is fixedly installed on the back plate of the horizontal guide rail, and the end of the telescopic shaft of the feeding cylinder is locked and fixed to the first mounting plate.

[0007] Preferably, the upper and lower ends of the first mounting plate are respectively provided with limiting plates, and the two limiting plates are used to provide the extreme positions for the two first sliders to move outward. This prevents the upper and lower clamps from disengaging from the floating guide rail during movement.

[0008] Preferably, the upper clamp and the lower clamp are fixedly mounted on the connecting block, and the two connecting blocks are respectively locked and fixed on the first slider. The two ends of the pneumatic tendon are respectively connected and fixed to the two connecting blocks. The upper clamp is mounted on the lower end face of the corresponding connecting block, and the upper end face of the connecting block is provided with an upper limit groove, into which the upper limit plate can be inserted. The lower clamp is mounted on the upper end face of the corresponding connecting block, and the lower end face of the connecting block is provided with a lower limit groove, into which the lower limit plate can be inserted.

[0009] Preferably, the upper clamp is made of copper, and the lower clamp is made of steel. Insulating plates are installed between the upper clamp and its corresponding connecting block, and between the lower clamp and its corresponding connecting block. When the upper and lower clamps grip the product to be tested, the entire testing circuit is activated. Copper is less strong than steel, so the lower clamp is made of steel to prevent damage. However, good conductivity is required during testing, and steel has poor conductivity; therefore, the upper clamp is made of copper.

[0010] Preferably, a detachable and replaceable electrode is provided on the clamping surface of the upper clamp end. Since a large current is applied during testing, the clamping surface of the upper clamp end is easily damaged. Therefore, the electrode is designed to be replaceable for easy replacement, thereby improving the overall lifespan of the upper clamp.

[0011] Preferably, the replaceable electrode is made of a silver alloy, which can reduce resistance. Attached Figure Description

[0012] Figure 1 This is a perspective view of the product being tested in this embodiment;

[0013] Figure 2 This is a partial perspective view of this embodiment;

[0014] Figure 3 This is an exploded view of the high-current clamp at the first angle in this embodiment;

[0015] Figure 4 This is an exploded view of the high-current clamp in this embodiment from the second angle.

[0016] In the attached diagram: 1. Base; 2. Locking fixture; 3. Product to be tested; 4. Upper clamp; 5. Lower clamp; 6. Flexible cable; 7. First slider; 8. Longitudinal floating guide rail; 9. Pneumatic tendon; 10. Return spring; 11. Feeding cylinder; 12. Connecting plate; 13. Horizontal guide rail; 14. First mounting plate; 15. Second slider; 16. Back plate; 17. Limiting plate; 18. Connecting block; 19. Upper limit groove; 20. Lower limit groove; 21. Insulating plate; 22. Replaceable electrode. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] See Figure 1 -to Figure 4 As shown, this embodiment discloses a compact floating high-current clamp, including a base 1, on which a locking fixture 2 is fixedly mounted. The locking fixture 2 can lock the product 3 to be tested. High-current clamps are respectively provided at both ends of the base 1, and each high-current clamp includes:

[0019] Two horizontally positioned upper clamps 4 and lower clamps 5, with a flexible cable 6 locked and fixed on the upper clamps 4;

[0020] The upper clamp 4 and the lower clamp 5 are slidably mounted on the longitudinal floating guide rail 8 via the first slider 7, and are arranged vertically.

[0021] Pneumatic tendon 9 is vertically positioned. When pneumatic tendon 9 is inflated, it drives the upper clamp 4 and lower clamp 5 to move in opposite directions.

[0022] The return spring 10 is installed between the upper clamp 4 and the lower clamp 5. When the pneumatic tendon 9 releases gas, the return spring 10 forces the upper clamp 4 and the lower clamp 5 to move in the opposite direction.

[0023] The feeding cylinder 11 drives the longitudinal floating guide rail 8 to move towards or away from the locking fixture 2.

[0024] A vertical connecting plate 12 is fixedly installed on the base 1. A pair of horizontal guide rails 13 are fixedly installed on the upper end of the connecting plate 12. A first mounting plate 14 is installed on the back of the longitudinal floating guide rail 8. The first mounting plate 14 is slidably installed on the pair of horizontal guide rails 13 by two second sliders 15 respectively. The feeding cylinder 11 is fixedly installed on the back plate 16 of the horizontal guide rail 13. The end of the telescopic shaft of the feeding cylinder 11 is locked and fixed to the first mounting plate 14.

[0025] In this embodiment, the upper and lower ends of the first mounting plate 14 are respectively provided with limiting plates 17, and the two limiting plates 17 are used to provide the extreme positions for the two first sliders 7 to move outward.

[0026] Upper clamp 4 and lower clamp 5 are fixedly installed on connecting blocks 18 respectively. The two connecting blocks 18 are locked and fixed on the first slider 7 respectively. The two ends of the pneumatic tendon 9 are connected and fixed to the two connecting blocks 18 respectively. Upper clamp 4 is installed on the lower end face of the corresponding connecting block 18. The upper end face of the connecting block 18 is provided with an upper limit groove 19. The upper limit plate 17 can be inserted into the upper limit groove 19. Lower clamp 5 is installed on the upper end face of the corresponding connecting block 18. The lower end face of the connecting block 18 is provided with a lower limit groove 20. The lower limit plate 17 can be inserted into the lower limit groove 20.

[0027] The upper clamp 4 is made of copper, and the lower clamp 5 is made of steel. Insulating plates 21 are installed between the upper clamp 4 and its corresponding connecting block 18, and between the lower clamp 5 and its corresponding connecting block 18.

[0028] The clamping surface at the end of the upper clamp 4 is provided with a detachable and replaceable electrode 22, which is made of silver alloy.

[0029] The working principle of this embodiment is as follows:

[0030] During testing, the product to be tested 3 is locked and fixed on the locking fixture 2. At this time, the feeding cylinder 11 of the high-current clamp drives the longitudinal floating guide rail 8 to move away from the locking fixture 2, providing installation space for the locking of the product to be tested 3. After the product to be tested 3 is installed, the feeding cylinder 11 drives the longitudinal floating guide rail 8 to move closer to the product to be tested 3. After it is in position, the upper clamp 4 and lower clamp 5 at each end of the product to be tested 3 are located above and below the testing section. Then, compressed air is filled into the pneumatic tendon 9, and the rubber tube of the pneumatic tendon 9 begins to deform, generating an expansion force in the diameter direction and a contraction in the length direction, thereby generating a tensile force, which drives the two connecting blocks 18 at both ends to move towards each other, thereby forcing the upper clamp 4 and lower clamp 5. The upper clamp 4 and lower clamp 5 move towards each other, clamping the detection part of the product to be tested 3. Since a floating guide rail 8 is used, the clamping positions of the upper clamp 4 and lower clamp 5 can float up and down on the floating guide rail 8 to adapt to different height positions and detection parts of different thicknesses. After the upper clamp 4 and lower clamp 5 clamp the detection part of the product to be tested 3, the detection circuit is turned on. After the detection, the pneumatic tendon 9 is vented, and the upper clamp 4 and lower clamp 5 no longer have the force to move towards each other. The return spring 10 forces the upper clamp 4 and lower clamp 5 to move in the opposite direction. Then, the feeding cylinder 11 drives the longitudinal floating guide rail 8 to move away from the locking fixture 2, waiting for the next product to be tested 3. The detected product 3 can be removed from the locking fixture 2.

[0031] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A compact floating high-current clamp, comprising a base (1), wherein a locking fixture (2) is fixedly mounted on the base (1), the locking fixture (2) being capable of locking the product to be tested (3), characterized in that: High-current clamps are respectively provided at both ends of the base (1), and each high-current clamp includes: Two horizontally arranged upper clamps (4) and lower clamps (5), with a flexible cable (6) locked and fixed on the upper clamps (4); The upper clamp (4) and lower clamp (5) are slidably mounted on the longitudinal floating guide rail (8) via the first slider (7), and the upper clamp (4) and lower clamp (5) are arranged vertically. Pneumatic tendon (9), which is vertically arranged, and when the pneumatic tendon (9) is inflated, it drives the upper clamp (4) and the lower clamp (5) to move toward each other; A return spring (10) is installed between the upper clamp (4) and the lower clamp (5). When the pneumatic tendon (9) releases gas, the return spring (10) forces the upper clamp (4) and the lower clamp (5) to move in the opposite direction. The feeding cylinder (11) drives the longitudinal floating guide rail (8) to move toward or away from the locking fixture (2).

2. The compact floating high-current clamp according to claim 1, characterized in that: A vertical connecting plate (12) is fixedly installed on the base (1). A pair of horizontal guide rails (13) are fixedly installed on the upper end of the connecting plate (12). A first mounting plate (14) is installed on the back of the longitudinal floating guide rail (8). The first mounting plate (14) is slidably installed on the pair of horizontal guide rails (13) by two second sliders (15). The feeding cylinder (11) is fixedly installed on the back plate (16) of the horizontal guide rail (13). The end of the telescopic shaft of the feeding cylinder (11) is locked and fixed to the first mounting plate (14).

3. A compact floating high-current clamp according to claim 2, characterized in that: Limiting plates (17) are respectively provided at the upper and lower ends of the first mounting plate (14). The two limiting plates (17) are used to provide the extreme positions for the two first sliders (7) to move outward.

4. A compact floating high-current clamp according to claim 3, characterized in that: The upper clamp (4) and lower clamp (5) are respectively fixedly installed on the connecting block (18), and the two connecting blocks (18) are respectively locked and fixed on the first slider (7). The two ends of the pneumatic tendon (9) are respectively connected and fixed to the two connecting blocks (18); The upper clamp (4) is installed on the lower end face of the corresponding connecting block (18), and the upper end face of the connecting block (18) is provided with an upper limit groove (19), and the upper limit plate (17) can be inserted into the upper limit groove (19). The lower clamp (5) is installed on the upper end face of the corresponding connecting block (18). The lower end face of the connecting block (18) is provided with a lower limiting groove (20), and the lower limiting plate (17) can be inserted into the lower limiting groove (20).

5. A compact floating high-current clamp according to claim 4, characterized in that: The upper clamp (4) is made of copper, and the lower clamp (5) is made of steel. Insulating plates (21) are installed between the upper clamp (4) and its corresponding connecting block (18), and between the lower clamp (5) and its corresponding connecting block (18).

6. A compact floating high-current clamp according to claim 1, characterized in that: The clamping surface at the end of the upper clamp (4) is provided with a detachable and replaceable electrode (22).

7. A compact floating high-current clamp according to claim 6, characterized in that: The replaceable electrode (22) is made of silver alloy.

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