Battery box placing table and airtightness detection clamp

Abstract

The utility model discloses a battery box placing table and an air tightness detection clamp, the battery box placing table is provided with one or more battery box filling blocks on a bottom plate used for placing a battery box, and each battery box filling block can fill the vast majority of the internal space of the battery box, so that the air inflation amount of air tightness detection is greatly reduced, and the air tightness detection efficiency is improved. The airtightness detection efficiency is improved, and the production takt of the whole production line is accelerated; the air tightness detection clamp can transfer the battery box to the extension frame for taking and placing, the problems of shielding and interference are completely avoided, the convenience and efficiency of taking and placing the battery box are greatly improved, the problem of collision of the battery box can be avoided, therefore, material supply for repairing and secondary air tightness detection is avoided, the efficiency of a production line is improved, and the production cost is reduced. And the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight detection, in particular to a battery box placement table and an airtight detection fixture. Background Art

[0002] With the rapid development of new energy vehicle technology, new energy vehicles have also been recognized by the market and their market share has gradually increased.

[0003] To ensure the safety of new energy vehicle battery packs, new energy vehicle battery packs usually need to be assembled into dedicated battery boxes. To ensure the sealing performance of the battery box, the battery box needs to be airtight before it goes offline.

[0004] Existing battery box airtightness testing fixtures almost all adopt the in-situ pick-and-place method. However, due to the large size and heavy weight of the battery box, the in-situ pick-and-place process not only has many interferences and poor operational convenience, but also has the possibility of collisions, resulting in the only way to repair it and then conduct a secondary airtightness test. In addition, the existing battery box airtightness testing fixture only performs airtightness testing directly after sealing the battery box. However, due to the large internal space of the battery box, the air filling volume for airtightness testing is also very large, and the airtightness testing efficiency is low.

[0005] Solving the above problems has become a top priority. Utility Model Content

[0006] In order to solve the technical problems of inconvenient battery box placement and low detection efficiency when using the existing battery box airtight detection fixture, the utility model provides a battery box placement table and an airtight detection fixture.

[0007] The technical solution is as follows:

[0008] The first aspect of the present application relates to a battery box placement table, comprising a base plate arranged in a horizontal direction and a lower edge sealing ring arranged on the upper surface of the base plate, the upper surface of the base plate is provided with a battery box circumferential positioning assembly surrounding the outer side of the lower edge sealing ring, characterized in that: the upper surface of the base plate is provided with at least one upwardly protruding battery box filling block, and each battery box filling block is located on the inner side of the lower edge sealing ring.

[0009] By adopting the above battery box placement table, one or more battery box filling blocks are provided on the bottom plate for placing the battery box. Each battery box filling block can fill most of the internal space of the battery box, thereby greatly reducing the inflation volume of the airtight detection, improving the efficiency of the airtight detection, and speeding up the production rhythm of the entire production line.

[0010] In some embodiments, the battery box circumferential positioning assembly includes a plurality of frame side wall positioning structures, a plurality of hole positioning structures and a plurality of frame side wall clamping devices, at least one frame side wall positioning structure is provided on the outside of each edge of the lower edge sealing ring, each hole positioning structure is distributed circumferentially on the outside of the lower edge sealing ring, and at least one frame side wall clamping device is provided on the outside of at least one edge of the lower edge sealing ring.

[0011] In some embodiments, the frame side wall positioning structure includes a positioning block and an L-shaped positioning block mounting seat, the positioning block mounting seat is installed on the bottom plate, and the positioning block is vertically extended and installed on one side of the positioning block mounting seat close to the lower edge sealing ring.

[0012] In some embodiments, the hole positioning structure includes a positioning pin mounting seat installed on the base plate, a hole positioning pin installed on the positioning pin mounting seat and extending upward, and a positioning pin driving cylinder for driving the hole positioning pin to rise and fall, the cylinder body of the positioning pin driving cylinder is installed on the lower surface of the base plate, and the piston rod of the positioning pin driving cylinder is coaxially connected to the hole positioning pin.

[0013] In some embodiments, the frame side wall pressing device includes a pressing cylinder mounting seat installed on the base plate and a pressing cylinder installed on the pressing cylinder mounting seat in a horizontal direction, the piston rod of the pressing cylinder extends in a direction close to the lower edge sealing ring, and a pressing block is installed at the outer end of the piston rod of the pressing cylinder.

[0014] The second aspect of the present application relates to an airtight detection fixture, comprising a lower frame, an upper frame installed above the lower frame through a plurality of columns, an extension frame installed on one side of the lower frame in a horizontal direction, and the above-mentioned battery box placement table, wherein the bottom plate moves back and forth between the top of the lower frame and the top of the extension frame in a horizontal direction through a translation drive assembly, and a battery box closing plate is installed below the upper frame through a lifting drive assembly, and an upper edge sealing ring is provided on the lower surface of the battery box closing plate;

[0015] When the lower edge of the frame of the battery box is supported on the lower edge sealing ring and the battery box placement platform is moved to directly below the battery box closing plate under the drive of the translation drive assembly, the battery box closing plate can press the battery box downward under the drive of the lifting drive assembly, so that the upper edge sealing ring and the lower edge sealing ring are respectively interference fit with the upper and lower edges of the frame of the battery box.

[0016] By using the above-mentioned airtight detection fixture, the battery box can be transferred to the extension frame for picking and placing, completely avoiding the problems of obstruction and interference. It not only greatly improves the convenience and efficiency of picking and placing the battery box, but also avoids the problem of battery box bumping, so that there will be no supply of repairs and secondary airtight testing, which improves the efficiency of the production line and reduces production costs.

[0017] In some embodiments, the translation drive assembly includes two long slide rails extending side by side from the top of the lower frame to the top of the extension frame, a rail trolley capable of sliding along the two long slide rails, and a translation drive cylinder for driving the rail trolley to slide along the two long slide rails. The base plate is installed on the rail trolley, the cylinder body of the translation drive cylinder is installed on the lower frame, and the piston rod of the translation drive cylinder is connected to the rail trolley.

[0018] In some embodiments, the lifting drive assembly includes a closing plate mounting frame fixedly mounted on the upper surface of the battery box closing plate, the closing plate mounting frame having a plurality of connecting seats disposed on the upper surface, wherein upwardly extending lifting guide rods are mounted on the tops of some of the connecting seats, each lifting guide rod respectively cooperates with a corresponding guide sleeve bushing mounted on the upper frame, and the tops of the remaining connecting seats are respectively connected to piston rods of corresponding lifting drive cylinders vertically mounted on the upper frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the airtightness detection fixture from one perspective;

[0020] Figure 2 for Figure 1 The enlarged view of point B in the middle;

[0021] Figure 3 for Figure 1 Enlarged view of point C in the middle;

[0022] Figure 4 This is a structural diagram of the airtight detection fixture from another perspective;

[0023] Figure 5 for Figure 4 The enlarged view of point D in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the battery box placement table. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with embodiments and drawings.

[0026] Embodiment 1:

[0027] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, a battery box placement table mainly includes a bottom plate 1 and a lower edge sealing ring 2, wherein the bottom plate 1 is arranged in a horizontal direction, the lower edge sealing ring 2 is arranged on the upper surface of the bottom plate 1, and the lower edge sealing ring 2 is a conventional annular sealing ring.

[0028] The upper surface of the base plate 1 is provided with a battery box circumferential positioning assembly surrounding the outer side of the lower edge sealing ring 2 for positioning the battery box A on the base plate 1 while ensuring that the lower side edge of the frame A1 of the battery box A is reliably supported on the lower edge sealing ring 2.

[0029] In this embodiment, the upper surface of the base plate 1 is provided with at least one battery box filling block 3 protruding upward, and each battery box filling block 3 is located on the inner side of the lower edge sealing ring 2. The shape and size of each battery box filling block 3 are adapted to the various spaces inside the battery box A. Therefore, each battery box filling block 3 can fill most of the internal space of the battery box A, and only a very small amount of inflation is required to perform airtightness testing, thereby greatly reducing the inflation amount for airtightness testing, improving the efficiency of airtightness testing, and speeding up the production rhythm of the entire production line.

[0030] The battery box circumferential positioning assembly includes a plurality of frame side wall positioning structures 4 , a plurality of hole positioning structures 5 and a plurality of frame side wall pressing devices 6 .

[0031] See also Figure 1 and Figure 3 At least one frame side wall positioning structure 4 is provided on the outer side of each edge of the lower edge sealing ring 2. Through the mutual cooperation of the frame side wall positioning structures 4, the battery box A can be reliably positioned so that it is supported on the lower edge sealing ring 2.

[0032] Specifically, the frame side wall positioning structure 4 includes a positioning block 4a and a positioning block mounting seat 4b in an "L"-shaped structure, the positioning block mounting seat 4b is mounted on the bottom plate 1, and the positioning block 4a is vertically extended and mounted on a side of the positioning block mounting seat 4b close to the lower edge sealing ring 2. In this embodiment, a plurality of frame side wall positioning structures 4 are provided, and each frame side wall positioning structure 4 surrounds the battery box A, so as to reliably position the battery box A.

[0033] Furthermore, a flexible gasket is installed on a surface of one side of the positioning block 4a away from the positioning block mounting seat 4b, so as to protect the side wall of the frame A1 of the battery box A.

[0034] See also Figure 1 and Figure 3 Each hole positioning structure 5 is distributed circumferentially on the outer side of the lower edge sealing ring 2. In this embodiment, a plurality of hole positioning structures 5 are provided, and each hole positioning structure 5 surrounds the battery box A and can position the holes of the battery box A.

[0035] Specifically, the hole positioning structure 5 includes a positioning pin mounting seat 5a installed on the bottom plate 1, a hole positioning pin 5b installed on the positioning pin mounting seat 5a extending upward, and a positioning pin driving cylinder 5c used to drive the hole positioning pin 5b to rise and fall. The cylinder body of the positioning pin driving cylinder 5c is installed on the lower surface of the bottom plate 1, and the piston rod of the positioning pin driving cylinder 5c is coaxially connected with the hole positioning pin 5b, that is, the hole positioning pin 5b is coaxially installed on the outer end of the piston rod of the positioning pin driving cylinder 5c. By controlling the rise and fall of the hole positioning pin 5b through the piston rod of the positioning pin driving cylinder 5c, the hole position of the battery box A can be reliably located, and the problem of jamming when the battery box A is placed can be avoided.

[0036] See also Figure 1 and Figure 6 At least one frame side wall pressing device 6 is provided on the outer side of at least one side of the lower edge sealing ring 2. Through the cooperation between each frame side wall pressing device 6 and each frame side wall positioning structure 4, the battery box A can be reliably pressed from the side, thereby improving the reliability of positioning.

[0037] Specifically, the frame side wall pressing device 6 includes a pressing cylinder mounting seat 6a mounted on the bottom plate 1 and a pressing cylinder 6b mounted on the pressing cylinder mounting seat 6a in the horizontal direction. The piston rod of the pressing cylinder 6b extends toward the direction close to the lower edge sealing ring 2, and a pressing block 6c is installed at the outer end of the piston rod of the pressing cylinder 6b to reliably press the battery box A. In this embodiment, each frame side wall pressing device 6 is centrally installed on the same side of the battery box A, so that the frame side wall positioning structure 4 can not only reliably press the battery box A laterally, but also reduce the number of frame side wall pressing devices 6 and reduce the cost.

[0038] Embodiment 2:

[0039] See also Figure 1-Figure 6 , an airtight detection fixture, comprising a lower frame 7, an upper frame 9 installed above the lower frame 7 through a plurality of columns 8, an extension frame 10 installed on one side of the lower frame 7 along a horizontal direction, and a battery box placement table of Example 1, the bottom plate 1 moves back and forth between the top of the lower frame 7 and the top of the extension frame 10 along a horizontal direction through a translation drive assembly, a battery box closing plate 11 is installed below the upper frame 9 through a lifting drive assembly, and an upper edge sealing ring 12 is provided on the lower surface of the battery box closing plate 11, and the upper edge sealing ring 12 is also a conventional annular sealing ring.

[0040] When the outer edge of the battery box A is supported on the lower edge sealing ring 2 and the battery box placement platform is moved to directly below the battery box closing plate 11 under the drive of the translation drive assembly, the battery box closing plate 11 can press the battery box A downward under the drive of the lifting drive assembly, so that the upper edge sealing ring 12 and the lower edge sealing ring 2 are respectively interference fit with the upper and lower edges of the frame A1 of the battery box A, thereby reliably sealing the battery box A and ensuring the accuracy of the airtight detection.

[0041] When the battery box placement table is moved to the extension frame 10 driven by the translation drive assembly, the battery box A can be easily taken and placed, and the problems of obstruction and interference are completely avoided. Not only the convenience and efficiency of taking and placing the battery box A are greatly improved, but also the problem of bumping into the battery box A can be avoided, so that there will be no supply of materials for repair and secondary airtightness testing, which improves the efficiency of the production line and reduces production costs.

[0042] The translation drive assembly includes two long slide rails 13 extending side by side from the top of the lower frame 7 to the top of the extension frame 10, a rail trolley 14 capable of sliding along the two long slide rails 13, and a translation drive cylinder 15 for driving the rail trolley 14 to slide along the two long slide rails 13. The cylinder body of the translation drive cylinder 15 is installed on the lower frame 7, the piston rod of the translation drive cylinder 15 is connected to the rail trolley 14, and the base plate 1 is installed on the top of the rail trolley 14, so that the battery box placement table can be smoothly driven to translate.

[0043] In this embodiment, the rail trolley 14 includes a rail trolley frame and a plurality of pulleys installed at the bottom of the rail trolley frame. Each pulley is divided into two groups and slides with the corresponding long slide rail 13, that is, each pulley slides along the corresponding long slide rail 13, and the base plate 1 is installed on the top of the trolley frame. The trolley frame is connected to the outer end of the piston rod of the translation drive cylinder 15, which not only ensures the reliable installation of the base plate 1, but also ensures the stability and reliability of the cooperation between the rail trolley 14 and the long slide rail 13.

[0044] Furthermore, the translation driving cylinder 15 is installed between the two long slide rails 13 , so that the force on the rail trolley 14 is more balanced, thereby further improving the stability of the rail trolley 14 .

[0045] See also Figure 1 and Figure 2The lifting drive assembly includes a sealing plate mounting frame 16 fixedly mounted on the upper surface of the battery box sealing plate 11, and a plurality of connecting seats 17 are provided on the upper surface of the sealing plate mounting frame 16, wherein the top of some connecting seats 17 is mounted with a lifting guide rod 18 extending upward, and each lifting guide rod 18 is respectively matched with a corresponding guide sleeve 19 sleeve mounted on the upper frame 9, and the top of the remaining connecting seats 17 is respectively connected with the piston rod of the corresponding lifting drive cylinder 20 vertically mounted on the upper frame 9. Through the cooperation of the above components, the stability of the lifting of the battery box sealing plate 11 is ensured, and the reliability of the sealing of the battery box A is ensured.

[0046] Furthermore, the lifting drive cylinders 20 are distributed in an array on the upper frame 9, thereby further improving the reliability of sealing the battery box A.

[0047] See also Figure 1 and Figure 4 A plurality of support feet 21 that can be raised and lowered are installed on the top of the lower frame 7 and the extension frame 10, so that the lower frame 7 and the extension frame 10 can be leveled more accurately to ensure the accuracy of the airtightness detection of the battery box A.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A battery box placement table, comprising a bottom plate (1) arranged in a horizontal direction and a lower edge sealing ring (2) arranged on the upper surface of the bottom plate (1), wherein the upper surface of the bottom plate (1) is provided with a battery box circumferential positioning component surrounding the outer side of the lower edge sealing ring (2), characterized in that: The upper surface of the bottom plate (1) is provided with at least one battery box filling block (3) protruding upwards, and each battery box filling block (3) is located on the inner side of the lower edge sealing ring (2).

2. The battery box placement table according to claim 1, characterized in that: The battery box circumferential positioning assembly comprises a plurality of frame side wall positioning structures (4), a plurality of hole positioning structures (5) and a plurality of frame side wall pressing devices (6); at least one frame side wall positioning structure (4) is provided on the outer side of each edge of the lower edge sealing ring (2); each hole positioning structure (5) is distributed circumferentially on the outer side of the lower edge sealing ring (2); and at least one frame side wall pressing device (6) is provided on the outer side of at least one edge of the lower edge sealing ring (2).

3. The battery box placement table according to claim 2, characterized in that: The frame side wall positioning structure (4) comprises a positioning block (4a) and an L-shaped positioning block mounting seat (4b), wherein the positioning block mounting seat (4b) is mounted on the bottom plate (1), and the positioning block (4a) is vertically extended and mounted on a side of the positioning block mounting seat (4b) close to the lower edge sealing ring (2).

4. The battery box placement table according to claim 2, characterized in that: The hole position positioning structure (5) comprises a positioning pin mounting seat (5a) mounted on the base plate (1), a hole position positioning pin (5b) mounted on the positioning pin mounting seat (5a) so as to extend upward, and a positioning pin driving cylinder (5c) for driving the hole position positioning pin (5b) to rise and fall, wherein the cylinder body of the positioning pin driving cylinder (5c) is mounted on the lower surface of the base plate (1), and the piston rod of the positioning pin driving cylinder (5c) is coaxially connected to the hole position positioning pin (5b).

5. The battery box placement table according to claim 2, characterized in that: The frame side wall pressing device (6) comprises a pressing cylinder mounting seat (6a) mounted on the bottom plate (1) and a pressing cylinder (6b) mounted on the pressing cylinder mounting seat (6a) in a horizontal direction, the piston rod of the pressing cylinder (6b) extending in a direction close to the lower edge sealing ring (2), and a pressing block (6c) is installed at the outer end of the piston rod of the pressing cylinder (6b).

6. An airtight detection fixture, characterized in that: The battery box placement table comprises a lower frame (7), an upper frame (9) installed above the lower frame (7) through a plurality of columns (8), an extension frame (10) installed on one side of the lower frame (7) in a horizontally extending manner, and a battery box placement table according to any one of claims 1 to 5, wherein the bottom plate (1) moves back and forth in a horizontal direction between the top of the lower frame (7) and the top of the extension frame (10) through a translation drive assembly, and a battery box closing plate (11) is installed below the upper frame (9) through a lifting drive assembly, and an upper edge sealing ring (12) is provided on the lower surface of the battery box closing plate (11); When the lower edge of the frame (A1) of the battery box (A) is supported on the lower edge sealing ring (2), and the battery box placement platform is moved to the position directly below the battery box closing plate (11) under the drive of the translation drive assembly, the battery box closing plate (11) can be driven by the lifting drive assembly to press the battery box (A) downward, so that the upper edge sealing ring (12) and the lower edge sealing ring (2) are respectively interference-fitted with the upper and lower edges of the frame (A1) of the battery box (A).

7. The airtight detection fixture according to claim 6, characterized in that: The translation drive assembly comprises two long slide rails (13) extending side by side from the top of the lower frame (7) to the top of the extension frame (10), a track trolley (14) capable of sliding along the two long slide rails (13), and a translation drive cylinder (15) for driving the track trolley (14) to slide along the two long slide rails (13), the base plate (1) is mounted on the track trolley (14), the cylinder body of the translation drive cylinder (15) is mounted on the lower frame (7), and the piston rod of the translation drive cylinder (15) is connected to the track trolley (14).

8. The airtight detection fixture according to claim 6, characterized in that: The lifting drive assembly comprises a closing plate mounting frame (16) fixedly mounted on the upper surface of the battery box closing plate (11), and a plurality of connecting seats (17) are provided on the upper surface of the closing plate mounting frame (16), wherein the top of some of the connecting seats (17) is mounted with a lifting guide rod (18) extending upward, and each lifting guide rod (18) is respectively matched with a corresponding guide sleeve (19) sleeve mounted on the upper frame (9), and the tops of the remaining connecting seats (17) are respectively connected to the piston rods of corresponding lifting drive cylinders (20) vertically mounted on the upper frame (9).

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