Battery pack lower shell contour positioning detection device

Abstract

The utility model discloses a battery pack lower shell contour positioning detection device, which belongs to the field of measurement and comprises a movable support and a battery pack lower shell, a fixing detection device for fixing the battery pack lower shell is arranged above the movable support, and a buffer device is arranged below the bottom surface of the battery pack lower shell. The buffer device comprises a supporting disc positioned on the bottom surface of the battery pack lower shell, automatic rebounding devices positioned on two sides of the bottom surface of the supporting disc, and a height adjusting mechanism for controlling the height of the supporting disc. Compared with the prior art, the device has the advantages that the height of the supporting disc located on the bottom face of the lower shell of the battery pack can be freely adjusted through meshing movement of the rack rod and the rotating shaft in the height adjusting mechanism, and therefore it is guaranteed that a positioning point of the lower shell of the battery pack can stably float above the fixed detection device; and calibration and fixation of the two positioning mechanisms are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of measurement, in particular to a battery pack lower shell contour positioning detection device. Background Technique

[0002] In the existing new energy development, the electrification of vehicles has become an irresistible trend. In order to provide sufficient energy for vehicles, it is necessary to package battery packs with battery packs. However, the existing vehicle production has become a streamlined production. In order to ensure that the battery pack can be accurately fixed to the corresponding position of the vehicle, it is necessary to detect the data of the positioning device of the battery pack lower shell contour, so as to avoid the situation that the positioning device of the battery pack lower shell contour does not match the vehicle positioning point.

[0003] The existing battery pack lower shell contour positioning detection device places the battery pack lower shell into the inner groove of the moving bracket, and detects and fixes the shell positioning mechanism above the battery pack lower shell through the fixed detection device above the moving bracket. After the battery pack lower shell is fixed above the fixed detection device, the moving bracket is pushed and pushed into the corresponding detection equipment to detect data such as flatness and dimensional tolerance of the battery pack lower shell.

[0004] Because the sizes of some vehicles are large, the size of the battery pack lower shell required for such vehicles is also relatively huge. When it is placed in the fixed detection device for fixation, it may occur that multiple positioning points cannot be determined simultaneously. The inside of the fixed detection device is in a hollow state, which makes it difficult to control the floating state of the battery pack lower shell when calibrating the positioning position, thus causing damage to the fixed detection device. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that when the battery pack lower shell of the existing battery pack lower shell contour positioning detection device calibrates and fixes the positioning position of the detection device, due to the lack of a corresponding support frame, it is difficult for the positioning point of the battery pack lower shell to float above the fixed detection device.

[0006] To solve the above technical problems, the technical solution provided by the utility model is: a battery pack lower shell contour positioning detection device, including a moving bracket and a battery pack lower shell. A fixed detection device for fixing the battery pack lower shell is arranged above the moving bracket. A buffer device is arranged below the bottom surface of the battery pack lower shell. The buffer device includes a support disk located at the bottom surface of the battery pack lower shell, automatic rebound devices located on both sides of the bottom surface of the support disk, and a height adjustment mechanism for controlling the height of the support disk. An auxiliary support rod located at the bottom surface of the automatic rebound device is arranged inside the moving bracket, and the height adjustment mechanism passes through the auxiliary support rod.

[0007] As an improvement, the fixed detection device includes a plurality of support plates located above the moving bracket, mounting positioning posts for positioning the position of the lower shell of the battery pack, and a detection guard plate bracket for fixing the side wall of the lower shell of the battery pack.

[0008] As an improvement, the mounting positioning posts, the detection guard plate bracket, and the moving bracket are all connected to the support plate through bolt structures, and the mounting positioning posts pass through the positioning holes of the lower shell of the battery pack.

[0009] As an improvement, the automatic spring-back device includes a mother rod, a son rod passing through the bottom surface of the mother rod, and a pressure spring located at the bottom surface of the son rod. The pressure spring is located in the inner hole of the mother rod, and the son rod passes through the bottom surface of the support disk.

[0010] As an improvement, the mother rod is connected to the auxiliary support rod through a bolt structure.

[0011] As an improvement, the height adjustment mechanism includes a rack bar located at the center of the bottom surface of the support disk, a rotating gear meshing with the rack bar, and a rotating shaft for driving the rotation of the rotating gear. A rotating auxiliary frame for fixing the rotating shaft is provided inside the moving bracket, and the rotating shaft passes through the rotating auxiliary frame.

[0012] As an improvement, the rotating shaft is connected to the rotating gear through a connection key, and the rack bar is connected to the bottom surface of the support disk through a bolt structure.

[0013] As an improvement, an anti-reverse rotation gear is provided on one side of the rotating shaft. A positioning plate for engaging with the tooth gaps of the anti-reverse rotation gear is provided on one side of the anti-reverse rotation gear. A stop bar for restricting the moving position of the positioning plate is provided between the anti-reverse rotation gear and the positioning plate, and the positioning plate is connected to the side wall of the moving bracket through a pin structure.

[0014] The advantages of the present utility model compared with the prior art are as follows: Through the meshing movement of the rack bar and the rotating shaft in the height adjustment mechanism, the support disk located at the bottom surface of the lower shell of the battery pack can freely adjust its height, so as to ensure that the positioning points of the lower shell of the battery pack can stably float above the fixed detection device, facilitating the calibration and fixation of the positioning mechanisms of the two. Description of the Drawings

[0015] Figure 1 It is the left side view of the overall structure of a battery pack lower shell contour positioning detection device of the present utility model.

[0016] Figure 2 It is the enlarged view of the fixed detection device of a battery pack lower shell contour positioning detection device of the present utility model.

[0017] Figure 3 It is the right side view of the overall structure of a battery pack lower shell contour positioning detection device of the present utility model.

[0018] Figure 4 It is an enlarged view of the height adjustment mechanism of a contour positioning detection device for the lower shell of a battery pack of the present utility model.

[0019] Figure 5 It is an enlarged view of the anti-reverse rotation gear of a contour positioning detection device for the lower shell of a battery pack of the present utility model.

[0020] Figure 6 It is a cross-sectional view of the automatic rebound device of a contour positioning detection device for the lower shell of a battery pack of the present utility model.

[0021] As shown in the figure: 1. Moving bracket; 11. Auxiliary support rod; 12. Rotating auxiliary frame; 2. Lower shell of battery pack; 3. Fixed detection device; 31. Support plate; 32. Installation positioning column; 33. Detection guard plate bracket; 4. Buffer device; 41. Support disc; 42. Automatic rebound device; 421. Mother rod; 422. Son rod; 423. Pressure spring; 43. Height adjustment mechanism; 431. Rack rod; 432. Rotating gear; 433. Rotating shaft; 4331. Anti-reverse rotation gear; 4332. Positioning plate; 4333. Stop rod. Specific implementation mode

[0022] The following further elaborates on the present utility model with reference to the accompanying drawings.

[0023] As shown in the attached Figure 1 , 2 , and Figure 6, it includes a moving bracket 1 and a lower shell 2 of a battery pack. Above the moving bracket 1, there is a fixed detection device 3 for fixing the lower shell 2 of the battery pack. The fixed detection device 3 includes a plurality of support plates 31 located above the moving bracket 1, an installation positioning column 32 for positioning the position of the lower shell 2 of the battery pack, and a detection guard plate bracket 33 for fixing the side wall of the lower shell 2 of the battery pack. The installation positioning column 32, the detection guard plate bracket 33, and the moving bracket 1 are all connected to the support plate 31 through bolt structures. The installation positioning column 32 passes through the positioning hole of the lower shell 2 of the battery pack. By manually calibrating the position of the side positioning point of the lower shell 2 of the battery pack and the installation positioning column 32, the relative positioning data measured with the lower shell 2 of the battery pack is obtained, and the relative position of the lower shell 2 of the battery pack is positioned. Then, the detection guard plate bracket 33 is used to press the locked position of the lower shell 2 of the battery pack to prevent loosening during movement.

[0024] As shown in the attached Figure 3 , 4As shown in FIGS. 5 and 6, a buffer device 4 is provided below the bottom surface of the battery pack lower case 2. The buffer device 4 includes a support plate 41 located on the bottom surface of the battery pack lower case 2, automatic rebound devices 42 located on both sides of the bottom surface of the support plate 41, and a height adjustment mechanism 43 for controlling the height of the support plate 41. An auxiliary support rod 11 located on the bottom surface of the automatic rebound device 42 is provided inside the moving bracket 1. The height adjustment mechanism 43 passes through the auxiliary support rod 11. By adjusting the height of the support plate 41 in a timely manner through the height adjustment mechanism 43, it is easier for the battery pack lower case 2 to be in the calibrated position, avoiding the battery pack lower case 2 injuring the fixed detection device 3 due to the operator's physical exhaustion during calibration.

[0025] The automatic rebound device 42 includes a mother rod 421, a son rod 422 passing through the bottom surface of the mother rod 421, and a compression spring 423 located on the bottom surface of the son rod 422. The compression spring 423 is located in the inner hole of the mother rod 421. The son rod 422 passes through the bottom surface of the support plate 41. The mother rod 421 is connected to the auxiliary support rod 11 through a bolt structure. The son rod 422 and the compression spring 423 are sequentially inserted into the inside of the mother rod 421, and then the bottom surface of the mother rod 421 is placed on the auxiliary support rod 11 and fixed with screws. This enables the support plate 41 to have a good shock absorption effect when sliding down, avoiding the height adjustment mechanism 43 from injuring the nearby operator due to excessive instantaneous movement.

[0026] The height adjustment mechanism 43 includes a rack bar 431 located at the center of the bottom surface of the support plate 41, a rotating gear 432 meshing with the rack bar 431, and a rotating shaft 433 for driving the rotating gear 432 to rotate. A rotating auxiliary frame 12 for fixing the rotating shaft 433 is provided inside the moving bracket 1. The rotating shaft 433 passes through the rotating auxiliary frame 12. The rotating shaft 433 is connected to the rotating gear 432 through a connection key. The rack bar 431 is connected to the bottom surface of the support plate 41 through a bolt structure. By rotating the rotating shaft 433 through a device such as a crank, due to the displacement of the straight bar of the rack bar 431 and the rotating gear 432, the rack bar 431 slides up and down around the central through hole of the auxiliary support rod 11, thereby controlling the height of the support plate 41. In order to ensure the levelness of the rotating shaft 433 during rotation, the rotating shaft 433 is inserted into the inner through hole of the rotating auxiliary frame 12 for fixation.

[0027] An anti-reverse gear 4331 is provided on one side of the rotating shaft 433, and a positioning plate 4332 for engaging the tooth gap of the anti-reverse gear 4331 is provided on one side of the anti-reverse gear 4331. A stopper 4333 for limiting the movement of the positioning plate 4332 is provided between the anti-reverse gear 4331 and the positioning plate 4332. The positioning plate 4332 is connected to the side wall of the mobile bracket 1 through a pin structure. In order to ensure that the support plate 41 will not slide downward due to the pressure of the battery pack lower shell 2 when the battery pack lower shell 2 is calibrated with the fixed detection device 3, an anti-reverse gear 4331 is provided on the axial surface of the rotating shaft 433, and the positioning plate 4332 is used to fix it.

[0028] During the specific implementation of the utility model, push aside the positioning plate 4332, reverse the rotating shaft 433, and raise the support plate 41 to the highest position; place the battery pack lower shell 2 on the support plate 41, align the positioning point of the battery pack lower shell 2 with the positioning device of the mounting positioning column 32, slowly rotate the rotating shaft 433, lower the battery pack lower shell 2 to the positioning device of the mounting positioning column 32, and lock its position (in the process of adjustment, while loosening the rotating shaft 433, the positioning plate 4332 must be stuck in the tooth gap of the anti-reverse gear 4331); fix the detection guard plate bracket 33 above the battery pack lower shell 2 to prevent the position of the battery pack lower shell 2 from changing due to external force when it moves, and finally push the movable bracket 1 to the bottom of the size measuring device to measure its size comprehensively.

[0029] The above describes the utility model and its implementation methods, which is not restrictive. The attached drawings only show one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A battery pack lower shell contour positioning detection device, comprising a movable bracket (1) and a battery pack lower shell (2), wherein a fixed detection device (3) for fixing the battery pack lower shell (2) is provided above the movable bracket (1), characterized in that: A buffer device (4) is provided below the bottom surface of the battery pack lower shell (2), the buffer device (4) comprising a support plate (41) located on the bottom surface of the battery pack lower shell (2), automatic rebound devices (42) located on both sides of the bottom surface of the support plate (41), and a height adjustment mechanism (43) for controlling the height of the support plate (41), an auxiliary support rod (11) located on the bottom surface of the automatic rebound device (42) is provided inside the mobile bracket (1), and the height adjustment mechanism (43) passes through the auxiliary support rod (11).

2. A battery pack lower shell contour positioning detection device according to claim 1, characterized in that: The fixed detection device (3) comprises a plurality of support plates (31) located above the movable bracket (1), a mounting positioning column (32) for positioning the position of the battery pack lower shell (2), and a detection guard plate bracket (33) for fixing the side wall of the battery pack lower shell (2).

3. A battery pack lower shell contour positioning detection device according to claim 2, characterized in that: The installation positioning column (32), the detection guard plate bracket (33) and the movable bracket (1) are all connected to the support plate (31) through a bolt structure, and the installation positioning column (32) passes through the positioning hole of the battery pack lower shell (2).

4. A battery pack lower shell contour positioning detection device according to claim 1, characterized in that: The automatic rebound device (42) comprises a mother rod (421), a sub-rod (422) passing through the bottom surface of the mother rod (421), and a pressure spring (423) located on the bottom surface of the sub-rod (422); the pressure spring (423) is located in the inner hole of the mother rod (421); and the sub-rod (422) passes through the bottom surface of the support plate (41).

5. A battery pack lower shell contour positioning detection device according to claim 4, characterized in that: The mother rod (421) is connected to the auxiliary support rod (11) via a bolt structure.

6. A battery pack lower shell contour positioning detection device according to claim 1, characterized in that: The height adjustment mechanism (43) comprises a rack rod (431) located at the center of the bottom surface of the support plate (41), a rotating gear (432) meshing with the rack rod (431), and a rotating shaft (433) driving the rotating gear (432) to rotate, and a rotating auxiliary frame (12) for fixing the rotating shaft (433) is provided inside the movable bracket (1), and the rotating shaft (433) passes through the rotating auxiliary frame (12).

7. A battery pack lower shell contour positioning detection device according to claim 6, characterized in that: The rotating shaft (433) is connected to the rotating gear (432) via a connecting key, and the rack rod (431) is connected to the bottom surface of the supporting plate (41) via a bolt structure.

8. The battery pack lower shell contour positioning detection device according to claim 6, characterized in that: An anti-reverse gear (4331) is provided on one side of the rotating shaft (433), a positioning plate (4332) for engaging with the tooth gap of the anti-reverse gear (4331) is provided on one side of the anti-reverse gear (4331), a blocking rod (4333) for limiting the moving position of the positioning plate (4332) is provided between the anti-reverse gear (4331) and the positioning plate (4332), and the positioning plate (4332) is connected to the side wall of the movable bracket (1) via a pin structure.

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