Novel battery pack tray testing fixture

Abstract

The utility model discloses a novel battery pack tray testing fixture, which comprises a testing fixture base and a testing fixture body, a product to be tested is placed on the testing fixture base, the testing fixture body is placed on the product to be tested, two opposite sides of the testing fixture body are respectively provided with a positioning mechanism, each positioning mechanism comprises a vertical positioning pin, and when the testing fixture body is placed on the product to be tested, the vertical positioning pins are positioned on the testing fixture base. Positioning pins are just inserted into positioning holes of a to-be-detected product in a matched mode to achieve positioning of the detection tool body, the detection tool body is further provided with a plurality of vertically-telescopic detection units, the detection units correspond to a plurality of product holes in the to-be-detected product in a one-to-one mode respectively and are used for detecting the positions of the product holes, and the detection tool body is further provided with a plurality of dial indicators. The flatness detector is used for detecting the flatness of a to-be-detected product. According to the utility model, the detection tool is used in actual product production so as to achieve the purposes of improving the size detection efficiency of the battery tray and reducing the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery pack trays for new energy vehicles. More specifically, the utility model relates to a new type of battery pack tray inspection tool. Background Art

[0002] As a core component of new energy vehicles, the product quality of the battery pack directly affects the safety of the whole vehicle. Therefore, whether the size of the battery pack is qualified is extremely important for the safety of the whole vehicle. The battery tray plays an important role in carrying and protecting the battery during the production, transportation and operation of the vehicle after loading. If the size of the battery tray does not meet the product size tolerance requirements, it may cause damage to the battery during transportation or use, and even lead to safety accidents. Therefore, dimensional inspection of the battery tray can effectively improve the quality and safety of battery products.

[0003] The new type of battery pack tray inspection tool is an inspection tool that integrates battery tray positioning and dimensional inspection, and is a special non-standard customized product. The application of a new type of battery pack tray inspection tool is beneficial to improving the efficiency of battery tray dimensional inspection and reducing the development cost of the project.

[0004] Generally, the existing new type of battery pack tray inspection tools include multiple different inspection structures. For different inspection parts, corresponding different inspection structures are adopted, and basically all are manually operated, which is relatively troublesome and inefficient. The main defects include: 1. The inspection tooling is relatively large and not portable, which is not convenient to move for space planning; 2. During the inspection process, the inspection blocks need to be continuously moved, the inspection operation workload is large, the inspection time is long, and the inspection accuracy may be affected by personal factors and errors may occur. Summary of the Utility Model

[0005] An object of the utility model is to provide a new type of battery pack tray inspection tool, which is used in actual product production to achieve the purpose of improving the efficiency of battery tray dimensional inspection and reducing costs.

[0006] To solve the above technical problems, the utility model provides a new type of battery pack tray inspection tool, which includes an inspection tool base and an inspection tool body. The product to be inspected is placed on the inspection tool base, and the inspection tool body is placed on the product to be inspected. Positioning mechanisms are arranged on both opposite sides of the inspection tool body, and each positioning mechanism includes a vertical positioning pin. When the inspection tool body is placed on the product to be inspected, the positioning of the inspection tool body is realized by the positioning pins being exactly inserted into the positioning holes of the product to be inspected. A plurality of vertically telescopic inspection units are also arranged on the inspection tool body, which respectively correspond to a plurality of product holes on the product to be inspected and are used to inspect the positions of the product holes. A plurality of dial indicators are also arranged on the inspection tool body, which are used to inspect the flatness of the product to be inspected.

[0007] Preferably, the positioning mechanism includes a positioning block fixedly arranged on the fixture body and a positioning pin arranged on the bottom surface of the positioning block. The positioning pins on both sides of the fixture body are a circular main positioning pin and a diamond-shaped secondary positioning pin respectively, and the bottom end of the positioning pin is provided with a conical guiding structure.

[0008] Preferably, the positioning block is in an inverted L shape and just closely adheres to the outer side wall of the product to be detected to limit the product to be detected.

[0009] Preferably, the fixture body is in a square frame structure. Multiple connecting plates are arranged on the outer side of the square frame structure for installing detection units. A vertical channel is arranged at the position corresponding to each detection unit on the connecting plate, and limiting plates with through holes are arranged on both the top surface and the bottom surface thereof. The detection unit includes a detection column which vertically penetrates through the vertical channel. An annular baffle is arranged at the lower part of the detection column to prevent the detection column from falling out of the through hole. A spring is also sleeved on the detection column, with its lower end fixed on the detection column and its upper end fixed on the limiting plate on the top surface of the vertical channel.

[0010] Preferably, multiple inverted L-shaped plates are also arranged on the outer side of the connecting plate, which just closely adhere to the outer wall surface of the product to be detected to limit the product to be detected.

[0011] Preferably, multiple dial indicators are arranged inside the square frame structure. A detection frame plate with a horizontal and vertical cross arrangement is arranged inside the square frame structure, and multiple dial indicators are installed at intervals thereon.

[0012] Preferably, casters for walking are arranged at the bottom of the fixture base, and the fixture base is in a frame support structure.

[0013] Preferably, carrying handles are also arranged on both sides of the fixture body, and a pair of them is arranged on each side of the fixture body. The carrying handles horizontally extend outward to the outside of the fixture body.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. The fixture of the utility model has a simple structure, is light and movable, is convenient for space planning, and only needs to be moved to the position to be detected when detection is needed.

[0016] 2. The detection operation of the fixture of the utility model is simple. Only by positioning and placing the fixture body can it be quickly judged whether the battery tray is qualified. When detecting flatness, the dial indicator is used for reading, and the detection result is accurate.

[0017] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. Brief Description of the Drawings

[0018] Figure 1 Schematic three-dimensional structure diagram of the inspection fixture of the present utility model;

[0019] Figure 2 Schematic bottom-up three-dimensional structure diagram of the inspection fixture body of the present utility model;

[0020] Figure 3 Schematic enlarged structure diagram of the positioning mechanism on one side of the inspection fixture body of the present utility model;

[0021] Figure 4 Schematic enlarged structure diagram of the positioning mechanism on the other side of the inspection fixture body of the present utility model;

[0022] Figure 5 Schematic enlarged structure diagram of the detection unit of the present utility model;

[0023] Figure 6 Schematic sectional view of the detection unit of the present utility model;

[0024] Figure 7 Schematic structure diagram of the dial indicator setting for detecting flatness of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. Inspection fixture base, 2. Inspection fixture body, 3. Product to be detected, 4. Positioning mechanism, 5. Detection unit, 6. Dial indicator, 7. Caster, 8. Positioning block, 9. Positioning pin, 10. Connecting plate, 11. Vertical channel, 12. Limiting plate, 13. Detection column, 14. Annular baffle, 15. Spring, 16. Detection frame plate, 17. Handling handle. Detailed implementation manners

[0027] In order to better understand the purpose, structure and function of the present utility model, the following further detailed description is made with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0028] It should be noted that in the description of the present utility model, the orientation or positional relationships indicated by the terms "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] Such as Figures 1 to 7As shown in the figure, the present utility model provides a new type of battery pack tray inspection tool, which includes an inspection tool base 1 and an inspection tool body 2. The product 3 to be detected is placed on the inspection tool base 1, and the inspection tool body 2 is placed on the product 3 to be detected. Positioning mechanisms 4 are provided on both opposite sides of the inspection tool body 2, which include vertical positioning pins 9. When the inspection tool body 2 is placed on the product 3 to be detected, the inspection tool body 2 is positioned by the positioning pins 9 just fitting into the positioning holes of the product 3 to be detected. A plurality of vertically telescopic detection units 5 are also provided on the inspection tool body 2, which respectively correspond to a plurality of product holes on the product 3 to be detected and are used to detect the positions of the product holes. A plurality of dial indicators 6 are also provided on the inspection tool body 2, which are used to detect the flatness of the product 3 to be detected.

[0030] In the initial state, the inspection tool body 2 is placed on the inspection tool base 1. When it is necessary to detect the product 3 to be detected, the inspection tool body 2 is picked up from the inspection tool base 1, and then the product 3 to be detected is placed on the inspection tool base 1. The inspection tool base 1 has a large supporting plane that can stably support the product 3 to be detected and the inspection tool body 2. Then the inspection tool body 2 is placed down and the positioning pins 9 of the positioning mechanism 4 are inserted into the positioning holes of the product 3 to be detected. The detection units 5 are used to detect the positions of the product holes of the product 3 to be detected, and at the same time, the dial indicators 6 are used to detect the flatness of the product 3 to be detected. After the inspection tool body 2 is placed on the inspection tool base 1 and positioned, the detection units 5 automatically correspond to the corresponding product holes one by one. If there is an error in the position of the product holes, the detection units 5 will not enter the product holes, and the detection units 5 will be pushed up by the surface of the product 3 to be detected. By observing the state of the detection units 5, it can be judged whether there are problems such as dimensional positions of the product holes in the product 3 to be detected. After the inspection tool body 2 is placed on the inspection tool base 1 and positioned, the plurality of dial indicators 6 contact the surface of the product 3 to be detected. By observing and recording the readings of the plurality of dial indicators 6, and then judging whether the size of the difference between the readings is within the set error range, so as to judge whether the flatness of the product 3 to be detected meets the product requirements.

[0031] In another technical solution, as Figures 2 to 4 shown, the positioning mechanism 4 includes a positioning block 8 fixedly arranged on the inspection tool body 2 and a positioning pin 9 arranged on the bottom surface of the positioning block 8. The positioning pins 9 on both sides of the inspection tool body 2 are respectively a circular main positioning pin 9 and a diamond-shaped secondary positioning pin 9. The bottom end of the positioning pin 9 is provided with a conical guiding structure.

[0032] The positioning pins 9 are divided into a circular main positioning pin 9 and a diamond-shaped secondary positioning pin 9, rather than being the same on both sides, which can be used to distinguish the placement direction of the inspection tool body 2.

[0033] In another technical solution, the positioning block 8 is in an inverted L shape, which just closely adheres to the outer side wall of the product 3 to be detected to limit the product 3 to be detected, thereby improving the detection accuracy.

[0034] In another technical solution, such as Figure 5 and Figure 6 shown, the inspection tool body 2 is a square frame structure. Multiple connecting plates 10 are arranged on the outer side of the square frame structure for installing the detection units 5. A vertical channel 11 is arranged at the position corresponding to each detection unit 5 on the connecting plate 10. Limiting plates 12 with through holes are arranged on both the top surface and the bottom surface thereof. The detection unit 5 includes a detection column 13 which vertically penetrates downward through the vertical channel 11. An annular baffle 14 is arranged at the lower part of the detection column 13, which restricts the detection column 13 from falling out of the through hole. A spring 15 is also sleeved on the detection column 13, the lower end of which is fixed on the detection column 13, and the upper end of the spring 15 is fixed on the limiting plate 12 on the top surface of the vertical channel 11.

[0035] If the positions of the product holes meet the design requirements, the detection units 5 automatically cooperate with the corresponding product holes one by one. In the natural state, the detection column 13 freely falls until the annular baffle 14 closely adheres to the limiting plate 12 on the bottom surface of the vertical channel 11, and the spring 15 is also in a free state, and the detection column 13 keeps its position unchanged. If there are errors in the positions of some product holes, the corresponding detection units 5 will not enter the product holes, and the detection columns 13 of the detection units 5 will be pushed upward by the surface of the product 3 to be detected, thereby compressing the spring 15, and the top of the detection column 13 also moves upward beyond the tops of the other detection columns 13. By observing the top position of the detection column 13, it can be judged whether there are problems such as dimensional positions of the product holes in the product 3 to be detected.

[0036] In another technical solution, multiple inverted L-shaped plates are further arranged on the outer side of the connecting plate 10, which just closely adhere to the outer wall surface of the product 3 to be detected to limit the product 3 to be detected.

[0037] In another technical solution, such as Figure 7 shown, multiple dial indicators 6 are arranged inside the square frame structure. Inside the square frame structure, inspection frame plates 16 arranged in a horizontal and vertical cross manner are provided, and multiple dial indicators 6 are installed thereon at intervals.

[0038] As needed, the square frame structure is composed of two square structures combined together, with greater structural strength. The inspection frame plate 16 can be composed of multiple basic units and is detachably combined and connected inside the square structure by bolts. The inspection frame plate 16 can be arranged inside one of the square structures, and then installed into the other square structure for flatness inspection after inspection. It can also be arranged with inspection frame plates 16 inside both square structures to conduct flatness inspection of the entire product simultaneously. When the inspection frame plate 16 is only arranged inside one of the square structures, a detachable crossbeam can be arranged inside the other square structure by bolts, and a handle is arranged to assist in picking up and putting down the jig body 2. At the same time, a handle is also arranged on the inspection frame plate 16 to cooperate to assist in picking up and putting down the jig body 2.

[0039] In another technical solution, casters 7 for walking are arranged at the bottom of the jig base 1, which is convenient for movement for space planning. The jig base 1 is a frame support structure.

[0040] In another technical solution, handling handles 17 are further arranged on both sides of the jig body 2, and a pair is arranged on each side of the jig body 2. The handling handles 17 extend horizontally outwards to the outside of the jig body 2.

[0041] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Although the implementation solutions of the present utility model are disclosed as above, it is not limited to only the applications listed in the description and implementation manners. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to specific details and the illustrations shown and described here.

Claims

1. A new type of battery pack tray inspection fixture, characterized in that: The device comprises a gauge base and a gauge body. The product to be inspected is placed on the gauge base, and the gauge body is placed on the product to be inspected. Positioning mechanisms are arranged on opposite sides of the gauge body, and the positioning mechanisms include vertical positioning pins. When the gauge body is placed on the product to be inspected, the positioning pins are inserted into the positioning holes of the product to be inspected to realize the positioning of the gauge body. The gauge body is also provided with a plurality of vertically telescopic detection units, which respectively correspond to the plurality of product holes on the product to be inspected and are used to detect the positions of the product holes. The gauge body is also provided with a plurality of dial indicators, which are used to detect the flatness of the product to be inspected.

2. The new battery pack tray inspection fixture according to claim 1 is characterized in that: The positioning mechanism includes a positioning block fixedly arranged on the gauge body and a positioning pin arranged on the bottom surface of the positioning block. The positioning pins on both sides of the gauge body are respectively a circular main positioning pin and a diamond-shaped auxiliary positioning pin. The bottom end of the positioning pin is arranged as a conical guide structure.

3. The new battery pack tray inspection fixture as claimed in claim 2 is characterized in that: The positioning block is in an inverted L-shape, and is just in close contact with the outer side wall of the product to be inspected to limit the position of the product to be inspected.

4. The new battery pack tray inspection fixture as claimed in claim 1 is characterized in that: The inspection tool body is a square frame structure, and a plurality of connecting plates are arranged on the outside of the square frame structure for installing the inspection unit. A vertical channel is arranged at the position corresponding to each inspection unit on the connecting plate, and a limit plate with a through hole is arranged on the top and bottom surfaces thereof. The inspection unit includes a detection column, which passes vertically downward through the vertical channel. An annular baffle is arranged at the lower part of the detection column, which limits the detection column from falling from the through hole. A spring is also sleeved on the detection column, and the lower end of the spring is fixed on the detection column, and the upper end of the spring is fixed to the limit plate on the top surface of the vertical channel.

5. The new battery pack tray inspection fixture as claimed in claim 4 is characterized in that: A plurality of inverted L-shaped plates are also arranged on the outside of the connecting plate, which are just in close contact with the outer wall surface of the product to be inspected to limit the position of the product to be inspected.

6. The new battery pack tray inspection fixture as claimed in claim 4 is characterized in that: A plurality of dial indicators are arranged inside the square frame structure. A detection frame plate arranged crosswise in horizontal and vertical directions is arranged inside the square frame structure, and a plurality of dial indicators are installed at intervals on the detection frame plate.

7. The new battery pack tray inspection fixture as claimed in claim 1 is characterized in that: The bottom of the inspection tool base is provided with casters for walking, and the inspection tool base is a frame support structure.

8. The new battery pack tray inspection fixture as claimed in claim 1 is characterized in that: Carrying handles are also arranged on both sides of the gauge body, and a pair of carrying handles are arranged on each side of the gauge body. The carrying handles extend outwardly and horizontally to the outside of the gauge body.

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