Clamping device for pressure test

Abstract

The invention belongs to the technical field of battery testing, and particularly relates to a pressure test clamping device which comprises a rack, a mounting part, a first pressure sensing part and a second pressure sensing part. The mounting part is connected to the rack; the first pressure sensing part and the second pressure sensing part are oppositely connected to the mounting part; and a clamping gap is formed between the first pressure sensing part and the second pressure sensing part. According to the invention, the accuracy and efficiency of pressure testing can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery testing, and particularly relates to a pressure test clamping device. Background Art

[0002] At present, the probes on the formation and grading equipment presses in the industry are all sampled as a whole cylindrical shape, and the probes are compressed by springs. The probes are made of beryllium copper material, and the head (contact surface with the pole column) is gold-plated, and the gold-plating thickness is ≥0.3 μm; at the same time, the shape of the contact surface of the voltage probe is designed such that the head of the voltage probe is designed as a cylindrical shape with a knurling angle of 60-70 degrees to improve the piercing ability to achieve the effect of piercing the oxide film on the surface of the tab, and the current probe is designed as a large-area semi-circular form. If the selection of the corresponding spring of the probe does not match, resulting in a greater stroke and greater pressure, it will cause pits on the pole column of the battery cell, directly affecting the appearance of the battery cell product. Therefore, it is necessary to conduct a probe pressure device test to test the consistency of the probe pressure in each channel of the press library.

[0003] However, the existing detection methods cannot confirm whether the pressures exerted by each probe on the battery pole column are consistent, nor can they ensure the consistency of the probe pressures at each position; thus affecting the accuracy and efficiency of the test. Summary of the Invention

[0004] The purpose of the present invention is to provide a pressure test clamping device to solve the technical problems of low accuracy and efficiency of the existing test in view of the deficiencies of the prior art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pressure test clamping device includes a frame, a mounting component, a first pressure sensing component, and a second pressure sensing component; the mounting component is connected to the frame; the first pressure sensing component and the second pressure sensing component are relatively connected to the mounting component; and a clamping gap is provided between the first pressure sensing component and the second pressure sensing component.

[0007] Preferably, the bottom of the first pressure sensing component is fixedly connected to the mounting component; the bottom of the second pressure sensing component is movably connected to the mounting component, so that the second pressure sensing component can move towards or away from the mounting component.

[0008] Preferably, a limiting groove is provided on one surface of the mounting component facing the clamping gap;

[0009] On one side surface of the second pressure sensing component facing the mounting component, there is a first limiting post corresponding to the limiting groove; the first limiting post is movably connected to the inside of the limiting groove; and / or, on one side surface of the first pressure sensing component facing the mounting component, there is a second limiting post corresponding to the limiting groove, and the second limiting post is clamped to the inner wall of the limiting groove.

[0010] Preferably, on one side of the first pressure sensing component facing the second pressure sensing component, there is a first contact part; inside the first contact part, there is a first contact channel, and the opening of the first contact channel gradually increases in the direction from the first pressure sensing component towards the second pressure sensing component;

[0011] and / or, on one side of the second pressure sensing component facing the first pressure sensing component, there is a second contact part; inside the second contact part, there is a second contact channel, and the opening of the second contact channel gradually increases in the direction from the second pressure sensing component towards the first pressure sensing component.

[0012] Preferably, the pressure test clamping device further includes a display component; the display component is connected to the frame; and the first pressure sensing component and the second pressure sensing component are respectively electrically connected to the display component.

[0013] Preferably, there is a power taking component on the frame; the power taking component is arranged on the side of the clamping gap; and the display component is electrically connected to the power taking component.

[0014] Preferably, there is a placement cavity inside the frame; inside the placement cavity, there is a control component; the second pressure sensing component and the first pressure sensing component are respectively electrically connected to one end of the control component; the other end of the control component is electrically connected to the display component.

[0015] Preferably, there are at least two height adjustment components on the frame; the height adjustment components are stacked and connected to the mounting component; and the side surface of the height adjustment component away from the mounting component is connected to the second pressure sensing component or the first pressure sensing component.

[0016] Preferably, the height adjustment component includes a sliding limiting part, a connecting part and a supporting part which are stacked and connected; the sliding limiting part is connected to the mounting component; the second pressure sensing component or the first pressure sensing component is connected to the supporting part.

[0017] Preferably, there is a positioning hole on the side surface of the supporting part away from the connecting part; the second pressure sensing component or the first pressure sensing component is detachably connected to the positioning hole.

[0018] The beneficial effects of the present invention are as follows. Through the first pressure sensing component and the second pressure sensing component relatively arranged on the installation component, the present technical solution can quickly detect whether the pressure values of the relative positions of the product to be tested are consistent, so as to quickly check whether there is any abnormal pressure at any position; thereby improving the accuracy and efficiency of the pressure test; at the same time, through the clamping gap formed between the first pressure sensing component and the second pressure sensing component, combined with the limiting and assembling effects of the first pressure sensing component and the second pressure sensing component on both sides, the clamping stability of the product to be tested is improved to ensure the efficiency of the pressure test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will describe the features, advantages and technical effects of exemplary embodiments of the present invention with reference to the attached Figures 1 to 5 drawings.

[0020] Figure 1 is a schematic structural diagram of a pressure test clamping device according to an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a pressure test clamping device according to an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of a pressure test clamping device according to an embodiment of the present invention;

[0023] Figure 4 is a partial enlarged view of a pressure test clamping device according to an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of a height adjustment component of a pressure test clamping device according to an embodiment of the present invention.

[0025] In the figure: 1 - frame; 101 - opening; 11 - mounting hole; 12 - placement cavity; 13 - mounting guide rail; 14 - limiting frame; 2 - mounting component; 21 - limiting groove; 3 - first pressure sensing component; 31 - first contact part; 4 - second pressure sensing component; 41 - second contact part; 5 - clamping gap; 6 - display component; 7 - power taking component; 8 - height adjustment component; 81 - sliding limiting part; 811 - abutting block; 82 - connecting part; 83 - supporting part; 831 - positioning hole; 832 - mounting section; 833 - connecting section; 834 - assembling section; 9 - control component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0028] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or there are multiple separate situations. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0030] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "install", "connect", "join", "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0031] The following is a further detailed description of the present invention in conjunction with the attached Figures 1 to 5 which is not intended to limit the present invention.

[0032] Such as Figure 1As shown, in an embodiment of the present invention, the pressure test clamping device includes a frame 1, a mounting component 2, a first pressure sensing component 3, and a second pressure sensing component 4; the mounting component 2 is connected to the frame 1; the first pressure sensing component 3 and the second pressure sensing component 4 are oppositely connected to the mounting component 2; and a clamping gap 5 is provided between the first pressure sensing component 3, the second pressure sensing component 4, and the mounting component 2.

[0033] The technical solution of the present invention can quickly detect whether the pressure values of the relative positions of the product to be tested are consistent through the first pressure sensing component and the second pressure sensing component oppositely arranged on the mounting component, so as to quickly check whether there is any abnormal pressure at any position; thereby improving the accuracy and efficiency of the pressure test; at the same time, through the clamping gap formed between the first pressure sensing component and the second pressure sensing component, combined with the limiting and assembling effects of the first pressure sensing component and the second pressure sensing component on both sides, the clamping stability of the product to be tested is improved to ensure the efficiency of the pressure test.

[0034] Among them, in some embodiments, as Figure 1 shown, a display component 6 is connected to the frame 1; and the first pressure sensing component 3 and the second pressure sensing component 4 are respectively electrically connected to the display component 6.

[0035] Among them, in some embodiments, as Figure 1 and 2 shown, the number of the mounting components 2 is two, and they are symmetrically arranged on the upper surface of the frame 1; and at least one first pressure sensing component 3 and at least one second pressure sensing component 4 are assembled on each mounting component 2. That is to say, on each mounting component 2, the number of the first pressure sensing components 3 is at least two, and the number of the second pressure sensing components 4 is at least two; and the first pressure sensing components 3 and the second pressure sensing components 4 are arranged in an interlaced and crossed manner; a corresponding clamping gap 5 is formed between each group of the first pressure sensing components 3 and the corresponding second pressure sensing components 4 and the mounting component 2. This structure can form at least two clamping gaps 5 through multiple groups of the first pressure sensing components 3 and the second pressure sensing components 4, so as to realize the pressure test of more products to be tested, and further improve the efficiency of the pressure test. Among them, in some embodiments, the number of the display components 6 corresponds to the number of the first pressure sensing components 3 and the number of the second pressure sensing components 4 respectively; and the display component 6 is selected as a (pressure) digital display meter. That is to say, each (pressure) digital display meter displays the pressure value of each first pressure sensing component 3 or each second pressure sensing component 4, so as to improve the integrity and accuracy of the values.

[0036] Specifically, in some embodiments, as Figure 1 and 2As shown, the bottom of the first pressure sensing component 3 is fixedly connected to the mounting component 2; the bottom of the second pressure sensing component 4 is movably connected to the mounting component 2, and the second pressure sensing component 4 can move towards or away from the mounting component 2 to increase or decrease the clamping gap 5. When in use, first bring the product to be tested close to the first pressure sensing component 3, and then push the second pressure sensing component 4 towards the product to be tested and the first pressure sensing component 3 until the first pressure sensing component 3 and the second pressure sensing component 4 are respectively pressed against the product to be tested, so that the pressure values at both ends can be quickly judged, and then it can be judged whether the product to be tested meets the production use requirements, improving the efficiency of pressure testing. Among them, as Figure 2 shown, a limiting groove 21 is provided on one side surface of the mounting component 2 facing the clamping gap 5; a first limiting post corresponding to the limiting groove 21 is provided on one side surface of the second pressure sensing component 4 facing the mounting component 2; a second limiting post corresponding to the limiting groove 21 is provided on one side surface of the first pressure sensing component 3 facing the mounting component 2, and the second limiting post is clamped to the inner wall of the limiting groove 21. Through the sliding arrangement of the first limiting post inside the limiting groove 21, the stability of the installation of the second pressure sensing component 4 can be ensured, and the smoothness of the sliding movement of the second pressure sensing component 4 can be improved.

[0037] Specifically, in some embodiments, as Figure 1 and 2 shown, a first contact portion 31 is provided on one side of the first pressure sensing component 3 facing the second pressure sensing component 4; a first contact channel is provided inside the first contact portion 31, and the opening of the first contact channel gradually increases in the direction from the first pressure sensing component 3 towards the second pressure sensing component 4. That is to say, through the first contact channel that gradually increases outwards, it can be ensured that the probe at this end can be quickly pressed against one side of the first contact portion 31, thereby improving the protection performance of the probe and improving the integrity and accuracy of the numerical value.

[0038] Specifically, in some embodiments, as Figure 1 and 2 shown, a second contact portion 41 is provided on one side of the second pressure sensing component 4 facing the first pressure sensing component 3; a second contact channel is provided inside the second contact portion 41, and the opening of the second contact channel gradually increases in the direction from the second pressure sensing component 4 towards the first pressure sensing component 3. That is to say, through the second contact channel that gradually increases outwards, it can be ensured that the probe at this end can be quickly pressed against one side of the second contact portion 41, thereby improving the protection performance of the probe and improving the integrity and accuracy of the numerical value.

[0039] Specifically, in some embodiments, as Figure 1 and 2As shown in FIGS. 2 and 3, a power-taking component 7 is provided on the frame 1; the power-taking component 7 is arranged on the side of the clamping gap 5; and the display component 6 is electrically connected to the power-taking component 7. Among them, the power-taking component 7 is selected as a power-taking port, and the power-taking port is an interface for connecting a power source. This structure conducts electricity through the position of the power-taking port; when the probe is pressed against the second pressure sensing component 4 or the first pressure sensing component 3, the second pressure sensing component 4 or the first pressure sensing component 3 at the other end outputs a signal connected to the display component 7 through an analog signal, and at the same time, the position signal of the power-taking port is transmitted to the upper computer of the press cabinet for judgment according to the set pressure magnitude values in the upper computer software. Further, the power-taking component 7 is arranged on the side surface of the frame 1 close to the first pressure sensing component 3. By relatively approaching the first pressure sensing component 3 that plays a main role, the direction and length of the wire harness can be controlled to ensure the stability and accuracy of data collection.

[0040] Specifically, in some embodiments, as Figure 2 and 3 shown, a placement cavity 12 is provided inside the frame 1; a control component 9 is provided inside the placement cavity 12; the second pressure sensing component 4 and the first pressure sensing component 3 are respectively electrically connected to one end (common wire) of the control component 9; the other end of the control component 9 is electrically connected to the display component 6. Among them, the control component 9 is selected as a microcontroller or a single-chip microcomputer. Further, the model of the microcontroller is STM8S003K3 or 89C51 or 89C52 or 89C53 or 89C54 or 89C58. Further, in some embodiments, as Figure 3 shown, an opening 101 communicating with the placement cavity 12 is provided on the frame 1; a maintenance door is hinged in the opening 101.

[0041] Specifically, in some embodiments, as Figure 3 shown, an installation guide rail 13 and a limit frame 14 are further provided inside the placement cavity 12; the control component 9 is slidably and limit-connected to the installation guide rail 13; both side ends of the limit frame 14 abut against both side ends of the installation guide rail 13; and the limit frame 14 is detachably connected to the frame 1 (by screws).

[0042] Specifically, in some embodiments, as Figure 2 and 3As shown in the figure, there are at least two height adjustment components 8 provided on the frame 1; the height adjustment components 8 are stacked and connected to the mounting component 2; and one side surface of the height adjustment component 8 away from the mounting component 2 is connected to the second pressure sensing component 4 or the first pressure sensing component 3. That is to say, according to the height of the product to be tested, the corresponding number of height adjustment components 8 is used to quickly adjust the height of the second pressure sensing component 4 or the first pressure sensing component 3, so as to realize the pressing operation on the product to be tested, and then improve the test efficiency and accuracy. Among them, in some embodiments, there is at least one mounting hole 11 provided on the frame 1; the bottom of the height adjustment component 8 is provided with a mounting post (not shown in the figure); the mounting post is clamped inside the mounting hole 11; to realize the stability of the placement of the idle height adjustment component 8.

[0043] Specifically, in some embodiments, such as Figure 3 and 4 As shown in the figure, the height adjustment component 8 includes a sliding limit portion 81, a connecting portion 82 and a supporting portion 83 which are stacked and connected; the sliding limit portion 81 is slidably connected to the mounting component 2; the second pressure sensing component 4 or the first pressure sensing component 3 is connected to the supporting portion 83. Among them, in some embodiments, such as Figure 4 As shown in the figure, the sliding limit portion 81 is of an inverted U-shaped structure; one end of the supporting portion 83 is hinged to the top surface of the connecting portion 82. Further, an abutting block 811 is provided on the side of the sliding limit portion 81 facing the mounting component 2; the abutting block 811 abuts against the mounting component 2. This structure can ensure the stability of the assembly through the three-section split structure of the upper, middle and lower parts, thus improving the convenience of adjustment. Still further, a positioning hole 831 is provided on the side surface of the supporting portion 83 away from the connecting portion 82; the first limiting post or the second limiting post is connected to the positioning hole 831 in a limiting manner.

[0044] Specifically, in some embodiments, such as Figure 4 and 5 As shown in the figure, the supporting portion 83 includes a mounting section 832, a connecting section 833 and an assembling section 834 which are arranged in sequence along the length direction; and one end of the assembling section 834 away from the connecting section 833 is connected to the connecting portion 82 in a limiting manner; the terrain of the side surface of the mounting section 832 away from the connecting portion 82 is lower than the terrain of the side surface of the assembling section 834 away from the connecting portion 82; and the second pressure sensing component 4 or the first pressure sensing component 3 is connected to the mounting section 832. This structure realizes the side-end abutting of the second pressure sensing component 4 or the first pressure sensing component 3 and combines the limiting effects of the first limiting post and the second limiting post at the bottom, so as to improve the stability of the assembly.

[0045] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains are also able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments, and any obvious improvements, substitutions or variations made by those skilled in the art based on the present invention fall within the protection scope of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A pressure test clamping device, characterized in that: It includes a frame, a mounting component, a first pressure sensing component, and a second pressure sensing component; the mounting component is connected to the frame; the first pressure sensing component and the second pressure sensing component are relatively connected to the mounting component; and there is a clamping gap between the first pressure sensing component and the second pressure sensing component.

2. The pressure test clamping device according to claim 1, wherein: The bottom of the first pressure sensing component is fixedly connected to the mounting component; the bottom of the second pressure sensing component is movably connected to the mounting component, so that the second pressure sensing component can move towards or away from the mounting component.

3. The pressure test clamping device according to claim 2, characterized in that: One side surface of the mounting component facing the clamping gap is provided with a limiting groove. One side surface of the second pressure sensing component facing the mounting component is provided with a first limiting post corresponding to the limiting groove; the first limiting post is movably connected to the inside of the limiting groove; and / or, one side surface of the first pressure sensing component facing the mounting component is provided with a second limiting post corresponding to the limiting groove, and the second limiting post is clamped to the inner wall of the limiting groove.

4. The pressure test clamping device according to claim 1, wherein: One side of the first pressure sensing component facing the second pressure sensing component is provided with a first contact part; a first contact channel is arranged in the first contact part, and the opening of the first contact channel gradually increases in the direction from the first pressure sensing component towards the second pressure sensing component. And / or, one side of the second pressure sensing component facing the first pressure sensing component is provided with a second contact part; a second contact channel is arranged in the second contact part, and the opening of the second contact channel gradually increases in the direction from the second pressure sensing component towards the first pressure sensing component.

5. The pressure test clamping device according to claim 1, wherein: The pressure test clamping device further includes a display component; the display component is connected to the frame; and the first pressure sensing component and the second pressure sensing component are respectively electrically connected to the display component.

6. The pressure test clamping device according to claim 1, wherein: A power taking component is arranged on the frame; the power taking component is arranged on the side of the clamping gap; and the display component is electrically connected to the power taking component.

7. The pressure test clamping device according to claim 1, wherein: A placement cavity is arranged inside the frame; a control component is arranged in the placement cavity; the second pressure sensing component and the first pressure sensing component are respectively electrically connected to one end of the control component; the other end of the control component is electrically connected to the display component.

8. The pressure test clamping device according to claim 1, wherein: At least two height adjusting components are further arranged on the frame; the height adjusting components are stacked and connected to the mounting component; and one side surface of the height adjusting component far away from the mounting component is connected to the second pressure sensing component or the first pressure sensing component.

9. The pressure test clamping device according to claim 8, wherein: The height adjusting component includes a sliding limiting part, a connecting part, and a supporting part which are stacked and connected; the sliding limiting part is connected to the mounting component; the second pressure sensing component or the first pressure sensing component is connected to the supporting part.

10. The pressure test clamping device according to claim 9, wherein: A positioning hole is arranged on one side surface of the supporting part far away from the connecting part; the second pressure sensing component or the first pressure sensing component is detachably connected to the positioning hole.

Images