Pipeline testing fixture for cooling pipeline in power battery pack

Abstract

The utility model discloses a pipeline testing fixture for a cooling pipeline in a power battery pack. The pipeline testing fixture comprises a bottom plate, a support, a reference block, a push-pull mechanism, a push rod, a limiting pin and a detection pin. According to the utility model, a to-be-detected pipe fitting used as a cooling pipeline in the future can be rapidly assembled, rapidly measured and rapidly disassembled, effective limiting and fixing in three axial directions can be completed at a time on the tool, standard detection of location degree, profile tolerance and length can be carried out based on a specially designed reference block, and the tool is different from a traditional single tool. The design can greatly improve the detection efficiency, can save a large amount of labor and the research and development design cost of a single tool, is reliable, stable and efficient, is simple in structure, is flexible and light, and is more suitable for the detection requirements of actually required pipelines.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline inspection technology, and in particular relates to a pipeline inspection tool for cooling pipelines inside a power battery pack. Background Technology

[0002] Currently, most battery packs for new energy passenger vehicles use liquid cooling. In order to ensure the reliability of the battery pack cooling water pipes, the products need to undergo dimensional inspection and airtightness testing before leaving the factory. Therefore, special fixtures need to be designed for the dimensional inspection process to perform positioning and dimensional inspection to ensure that the products are stable and meet the standards. Utility Model Content

[0003] This invention provides a pipe inspection tool for cooling pipes inside a power battery pack, in order to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A pipe inspection fixture for cooling pipes inside a power battery pack includes a base plate, supports, a reference block, a push-pull mechanism, a push rod, a limit pin, and a detection pin. The base plate has a contour block at its center, and handling handles are fitted at the edges of both sides. Multiple supports are vertically arranged around the contour block, each support being equipped with a push-pull mechanism or a push rod. The contour block has positioning pin mounting holes, a vertical through groove, and opposing clamping grooves. Both ends of the opposing clamping grooves are equipped with push rods. The rod is fixed, and the positioning pin assembly hole is provided with a positioning pin higher than the horizontal plane of the hole; the vertical through groove is for the pipe to be inspected to be inserted, and the support with the push-pull mechanism, the fixed block with the push rod and the contour block with the positioning pin can fix the pipe to be inspected on the contour block in the X, Y and Z axes; each support with the push rod is equipped with a reference block with a different structure on the other side of the push rod, so as to perform standard inspection of the position, contour and length of the pipe to be inspected on the contour block.

[0006] Preferably, the push-pull mechanism is a pressure handle structure.

[0007] Preferably, the push rod has a limiting hole and is equipped with a limiting pin for auxiliary positioning.

[0008] Preferably, the supports with push-pull mechanisms located on the front and rear sides of the contour block are X-axis limiting supports.

[0009] Preferably, the support with a push rod located on the right side of the contour block is a Z-axis limiting support, and the reference block on its push rod is equipped with a detection pin.

[0010] Preferably, the support with a push-pull mechanism located on the left side of the contour block is an auxiliary support, and an auxiliary positioning component is fixedly mounted on its push-pull mechanism.

[0011] Preferably, the support with a push rod located below the Z-axis limiting support is a length detection support.

[0012] Preferably, the top of the reference block on the length detection support is provided with an auxiliary reference block that cooperates with the auxiliary positioning component to perform positioning detection on the pipe fitting to be inspected.

[0013] Preferably, the surfaces of the contour block and the support are both treated with anodizing.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: This utility model can perform quick installation, quick testing and quick disassembly of the pipe fittings to be inspected and used as cooling pipelines in the future. It can complete the effective limiting and fixing of three axes at one time, and then perform standard testing of position, contour and length based on specially designed reference blocks. Unlike traditional single tooling, this design can greatly improve the testing efficiency, save a lot of labor and the research and development costs of single tooling, and is reliable, stable, efficient, simple in structure, flexible and lightweight, and more adaptable to the actual needs of pipeline testing. Attached Figure Description

[0015] Figure 1 This is an assembly drawing of the present utility model.

[0016] Figure 2 for Figure 1 Top view.

[0017] Figure 3 and Figure 4 These are all assembly diagrams of the supports of this utility model.

[0018] Figure 5 This is a partially enlarged schematic diagram showing the assembly and positioning of the Z-axis limiting support, auxiliary support, and length detection support of the present invention for the pipe fitting to be inspected.

[0019] Figure 6 This is a schematic diagram illustrating the assembly and positioning of the X-axis limiting support, the fixing block with push rod, and the contour seat of the present invention for the pipe fitting to be inspected.

[0020] Figure 7 for Figure 6 A partial exploded view.

[0021] Figure 8 This is a schematic diagram of the length detection support of this utility model.

[0022] Figure 9 This is an exploded view of the push rod of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 9 As shown, this utility model is a pipeline inspection tool for cooling pipelines inside a power battery pack. This utility model mainly includes a base plate 1, a support, a reference block 2, a push-pull mechanism 3, a push rod 4, a limit pin 5, and a detection pin 6.

[0025] Its general structure is as follows:

[0026] A contour block 7 is provided at the center of the base plate 1, while handling handles 8 are installed on the edges of both sides of the base plate 1. Multiple supports are vertically arranged around the contour block 7, and each support is equipped with a push-pull mechanism 3 or a push rod 4. The contour block 7 has a positioning pin assembly hole, a vertical through groove 71, and an opposing clamping groove 72. Both ends of the opposing clamping groove 72 are equipped with a fixing block 73 with a push rod 4, and a positioning pin 70 higher than the horizontal plane of the positioning pin assembly hole is provided in the positioning pin assembly hole. The vertical through groove 71 is for the pipe fitting 9 to be inspected to be inserted. The support with the push-pull mechanism 3, the fixing block 73 with the push rod 4, and the contour block 7 with the positioning pin 70 can fix the pipe fitting 9 to be inspected on the contour block 7 in the X, Y, and Z axes. Each support with the push rod 4 has a reference block 2 with a different structure on the other side of the push rod 4 to perform standard inspection of the position, contour, and length of the pipe fitting 9 to be inspected on the contour block 7.

[0027] To ensure that the required data for the position, profile, and length of the pipe fitting 9 to be inspected are based on a stable state, and to enable quick assembly, quick testing, and quick disassembly, this utility model was designed.

[0028] It can be further explained that the push-pull mechanism 3 is a pressure handle structure, which allows the operator to pressurize and position the pipe fitting 9 to be inspected by swinging the handle slightly.

[0029] The push rod 4 has a limiting hole 40 and a corresponding limiting pin 5. The purpose is that when the push rod 4 moves forward to a certain position, the operator can insert the limiting pin 5 into the limiting hole 40 to position and limit the push rod 4 so that it is in the current position for subsequent inspection of the pipe fitting 9.

[0030] In order for the present utility model to achieve detection under a stable state, it is necessary to ensure that the pipe fitting 9 to be inspected after quick installation is locked in six directions: front and back, left and right, and up and down. For this purpose, the support with the push-pull mechanism 3 on the front and back sides of the profiling block 7 is the X-axis limiting support 10. When the pipe fitting 9 to be inspected is placed into the vertical through groove 71 of the profiling block 7, the operator can apply pressure and limit it by pulling the handle of the push-pull mechanism 3. At the same time, while the pipe fitting 9 to be inspected is being pressurized and limited, it is also subjected to position detection by the positioning pins 70 provided in the profiling block 7. If the hole positions at the bottom of the pipe fitting 9 to be inspected are unqualified, one or more of the four positioning pins 70 cannot be accurately positioned and inserted, which is unqualified, and it is even more impossible to achieve limit positioning. Therefore, this is the first detection position and locking position of the pipe fitting 9 to be inspected in the present utility model.

[0031] The second detection position and locking position is the Z-axis limiting support 11, which is located on the right side of the profiling block 7, and the reference block 2 on its push rod 4 is equipped with a detection pin 6.

[0032] The third detection position and locking position is the support with the push rod 4 located below the Z-axis limiting support 11, specifically the length detection support 13, and the top of the reference block 2 of it is provided with an auxiliary reference block 130 that cooperates with the auxiliary mounting positioning member 120 to perform positioning detection on the pipe fitting 9 to be inspected.

[0033] In the specific detection process, the judgment of qualified or unqualified is as follows:

[0034] 1. Position degree: Place the pipe fitting 9 to be inspected into the vertical through groove 71 of the profiling block 7. The operator can apply pressure and limit it by pulling the handle of the push-pull mechanism 3. At the same time, while the pipe fitting 9 to be inspected is being pressurized and limited, it is also subjected to position detection by the positioning pins 70 provided in the profiling block 7. Specifically, if the hole positions at the bottom of the pipe fitting 9 to be inspected are unqualified, one or more of the four positioning pins 70 cannot be accurately positioned and inserted, which is unqualified, and it is even more impossible to achieve subsequent limit positioning. The push-pull mechanism 3 on the X-axis limiting support 10 presses down from top to bottom, so it can lock the pipe fitting 9 in the up and down two directions in the X-axis direction;

[0035] 2. Profile degree: After placing the pipe fitting 9 to be inspected into the profiling block 7, observe that the pipe fitting 9 to be inspected does not exceed the upper surface of the profiling block 7, and use a flatness gap gauge to detect its profile. If the gap gauge can pass through, it is qualified, otherwise it is unqualified. This step is assisted by the Z-axis limiting support 11. The detection pin 6 of the reference block 2 on the Z-axis limiting support 11 is inserted into the hole position of the upper interface of the pipe fitting 9 to be inspected, which limits its height and also limits the front and back two directions of the pipe fitting 9 to be inspected. Therefore, when using the gap gauge, it can provide the overall assembly detection data of the pipe fitting 9 to be inspected based on this;

[0036] 3. Pipeline length: After the pipe fitting 9 to be inspected is placed into the contour block 7, push the push-pull mechanism 3 on the length detection support 13 into place, and observe the situation when the reference block 2 with a U-shaped design on the length detection support 13 fits the pipe fitting 9 to be inspected. If the length of the pipe fitting 9 to be inspected is equal to or greater than the reference block 2 with a U-shaped design on the length detection support 13, it is qualified; otherwise, it is unqualified.

[0037] Thus, this utility model can not only fix the position step by step during the assembly of the pipe fitting 9 to be inspected, but also perform data detection at the same time.

[0038] It should be noted that the left and right Y-axis directions are both fixed by pressure when the pipe fitting 9 to be inspected is placed in the vertical through groove 71 of the contour block 7.

[0039] This invention can greatly improve testing efficiency, save a lot of manpower and the research and development costs of individual tooling, and is reliable, stable, efficient, simple in structure, flexible and lightweight, making it more suitable for the testing needs of actual pipelines.

[0040] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A pipe inspection fixture for cooling pipes inside a power battery pack, comprising a base plate (1), a support, a reference block (2), a push-pull mechanism (3), a push rod (4), a limit pin (5), and a detection pin (6), characterized in that, A contour block (7) is provided at the center of the base plate (1), and a handling handle (8) is provided at the edges on both sides of the base plate (1); multiple supports are vertically arranged around the contour block (7), and a push-pull mechanism (3) or a push rod (4) is installed on each support; the contour block (7) has a positioning pin assembly hole, a vertical through groove (71) and a counter-clamping groove (72), and a fixing block (73) with a push rod (4) is provided at both ends of the counter-clamping groove (72), and a positioning pin is provided in the positioning pin assembly hole that is higher than the horizontal plane of the hole. Pin (70); The vertical through groove (71) is for the pipe fitting (9) to be inspected to be inserted. The support with the push-pull mechanism (3), the fixing block (73) with the push rod (4) and the contour block (7) with the positioning pin (70) can fix the pipe fitting (9) to be inspected on the contour block (7) in the X, Y and Z axes; Each support with the push rod (4) is equipped with a reference block (2) with a different structure on the other side of the push rod (4) to perform standard testing on the position, contour and length of the pipe fitting (9) to be inspected on the contour block (7).

2. The pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The push-pull mechanism (3) is a pressure handle structure.

3. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The push rod (4) has a limiting hole (40) and is equipped with a limiting pin (5) for auxiliary positioning.

4. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The supports with push-pull mechanisms (3) located on the front and rear sides of the contour block (7) are X-axis limiting supports (10).

5. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The support with push rod (4) located on the right side of the contour block (7) is a Z-axis limiting support (11), and the reference block (2) on its push rod (4) is equipped with a detection pin (6).

6. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The support with a push-pull mechanism (3) located on the left side of the contour block (7) is an auxiliary support (12), and an auxiliary positioning component (120) is fixed on its push-pull mechanism (3).

7. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 5, characterized in that, The support with push rod (4) located below the Z-axis limiting support (11) is a length detection support (13).

8. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 7, characterized in that, The top of the reference block (2) on the length detection support (13) is provided with an auxiliary reference block (130) that cooperates with the auxiliary positioning component (120) to perform positioning detection on the pipe fitting (9) to be inspected.

9. A pipe inspection fixture for cooling pipes inside a power battery pack according to claim 1, characterized in that, The surfaces of the contour block (7) and each support are all treated with anodizing.

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