A new energy battery box mechanical performance testing equipment

Abstract

The application discloses a new energy battery box mechanical property testing equipment, relates to the battery box testing technical field, and solves the problems that the battery box mechanical property testing equipment in the prior art is not flexible and accurate in conveying and positioning, is not firm in fixing, and is insufficient in adaptability and universality; the equipment comprises a test base and a frame body, the frame body comprises a pair of stand columns fixed on the test base and a side frame; an impact hanging plate is movably sleeved on the pair of stand columns, and a group of impact pieces are fixedly arranged on the bottom surface of the impact hanging plate through fixing bolts; a winch assembly is arranged on the frame and is used for lifting the impact hanging plate; the equipment further comprises a conveying table which is fixedly embedded in the test base, and a conveying seat is slidably arranged in the port of the conveying table; the test scheme of the application can effectively avoid the shaking of the battery box to be tested and the left-right deviation of the bottom of the conveying seat, significantly improves the accuracy of the test result, can more flexibly position the position of the conveying seat, can be conveniently taken out, and is convenient to operate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery box testing, and particularly relates to a new energy battery box mechanical performance testing equipment. BACKGROUND

[0002] Battery box testing is a key step to guarantee its safety, reliability and performance stability, covering multiple projects such as structural safety testing, environmental adaptability testing, electrical performance testing, and sealing and durability testing, wherein the structural safety testing includes mechanical strength and impact resistance testing.

[0003] At present, after the production of the battery box is completed, the battery is usually impacted by a collision testing device to simulate a real collision scene and intuitively evaluate the safety performance of the battery. However, the existing battery box mechanical performance testing equipment has some obvious deficiencies:

[0004] Firstly, in the conveying and fixing links of the battery box, the existing testing equipment performs poorly. On the one hand, there is a lack of flexible and accurate positioning method during the conveying of the battery box; on the other hand, the fixing of the battery box is not firm enough and is prone to shaking, which will adversely affect the accuracy of the test results.

[0005] Secondly, there are many specifications and models of new energy battery boxes, and the existing testing equipment has shortcomings in adaptability and universality. In the face of different specifications of battery box testing requirements, the existing equipment often cannot flexibly adjust itself and the fixing device, and often needs to be specially designed and replaced with testing fixtures, which not only increases the testing cost but also prolongs the testing time.

[0006] In summary, the existing battery box mechanical performance testing equipment has the problems of non-flexible and non-accurate conveying positioning, non-firm fixing, and insufficient adaptability and universality. SUMMARY

[0007] The application provides a new energy battery box mechanical performance testing equipment, which can solve at least one of the problems of the existing battery box mechanical performance testing equipment.

[0008] To achieve the above-mentioned purpose, according to the first aspect of the embodiment of the application, a new energy battery box mechanical performance testing equipment is provided, which comprises a test base and a frame body, the frame body comprises a pair of vertical columns fixed on the test base and a side frame;

[0009] The impact hanging plate is movably sleeved on the pair of vertical columns, and a group of impact pieces are fixedly arranged on the bottom surface of the impact hanging plate through fixing bolts;

[0010] The winch assembly is arranged on the frame and is used for lifting the impact hanging plate;

[0011] Further comprising:

[0012] The conveying table is fixedly embedded in the test table base, a conveying seat is slidingly arranged in the port of the conveying table, and a battery box fixing die is arranged on the conveying seat and used for limiting and placing the battery box;

[0013] The battery box fixing die comprises a pressure bearing plate, corner limiting clamping seats arranged at four corners of the pressure bearing plate, limiting frames fixedly arranged on inner sides of the four corner limiting clamping seats, and an adjustable plate structure arranged on the limiting frames, and the adjustable plate structure is used for adapting to fixing battery boxes of different specifications;

[0014] The conveying positioning mechanism is used for linear conveying of the conveying seat;

[0015] The vacuum adsorption jacking mechanism is used for adsorption and fixing and jacking of the battery box fixing die.

[0016] Further improvement lies in that the conveying positioning mechanism comprises a pair of rack gears fixedly connected in parallel to two side surfaces of the conveying seat and a pair of direct current servo motors fixedly connected to surfaces of the test table base and located on two sides of the conveying table, main shafts of the direct current servo motors are fixedly connected with synchronous gears, and each side synchronous gear is in meshing connection with each side rack gear.

[0017] Further improvement lies in that a mounting groove is formed in a surface of the conveying seat, a silica gel pad with a ring-shaped adsorption magnetic plate is embedded in the groove, a magnetic sheet corresponding to the ring-shaped adsorption magnetic plate is arranged at an edge of a bottom surface of the pressure bearing plate, and the two form a magnetic adsorption fixing structure, and the silica gel pad and the pressure bearing plate are provided with through openings in the middle portions to allow the vacuum adsorption jacking mechanism to pass through.

[0018] Further improvement lies in that a buffer spring is sleeved on each of the columns, and a bottom surface of the buffer spring is fixedly mounted on the test table base.

[0019] Further improvement lies in that the vacuum adsorption jacking mechanism comprises a pair of micro jacking air cylinders fixedly connected to the conveying seat, a mounting plate fixedly connected to a top surface of a rod body of the micro jacking air cylinder, a first vacuum silica gel suction disc fixedly embedded at four corners of the mounting plate, a first air path control valve fixedly connected to a bottom surface of each first vacuum silica gel suction disc, and a vacuum pump fixedly connected to a side surface of the conveying table.

[0020] Further improvement lies in that the vacuum adsorption jacking mechanism further comprises a linkage adsorption structure, a groove is formed in a middle portion of the port of the conveying table and extends downward, the linkage adsorption structure comprises a sliding seat slidingly arranged in the groove, a T-shaped supporting plate fixedly connected to a top surface of the sliding seat, a pair of second vacuum silica gel suction discs fixedly embedded in the T-shaped supporting plate, and a second air path control valve fixedly connected to a bottom end of each second vacuum silica gel suction disc, and a gas pipe line of the vacuum pump is connected with the first air path control valve and the second air path control valve.

[0021] Further improvement lies in that the conveying positioning mechanism further comprises a mounting rod fixedly connected to the inner wall of the port on one side of the groove, the height of the mounting rod is lower than the height of the slot of the groove, a group of elastic touch switches are fixedly arranged on the mounting rod, the T-shaped supporting plate is fixedly connected with a touch block on the side facing the mounting rod, the elastic touch switches are connected with a prompt light, and the prompt light is fixedly arranged on the test base; when all the elastic touch switches are triggered in sequence, the prompt light displays that the conveying seat reaches the test station.

[0022] Further improvement lies in that each of the corner limiting clamping seats is in L-shaped structure and is integrally formed with the pressure bearing plate, a limiting frame is fixedly installed inside each of the corner limiting clamping seats, and the limiting frame is fixedly connected with each of the corner limiting clamping seats through fixed bolts at four corners.

[0023] Further improvement lies in that the adjustable plate structure comprises an adjustable partition plate arranged inside the limiting frame, adjustable sliding grooves are arranged on the two symmetrical sides of the limiting frame, and a clamping piece is movably arranged in each of the adjustable sliding grooves.

[0024] Each of the clamping pieces comprises a threaded sleeve and a fastening cylinder, one end of each of the two threaded sleeves is fixedly connected to the two sides of the adjustable partition plate.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] (1) According to the test scheme of the present application, the battery box to be tested is placed on the mold, the four corners of the battery box are clamped into the four corner limiting clamping seats, and then the entire mold together with the battery box is placed into the installation groove. At this time, the magnetic sheet on the bottom surface of the pressure bearing plate in the mold is in contact with the silica gel pad in the groove and is adhered to the inner annular adsorption magnetic plate, and the two form magnetic adsorption fixation. This design facilitates the disassembly and assembly of the battery box and the mold. After preliminary fixation, the vacuum pump is controlled to be started, the air path control valve one is opened, the air in the vacuum silica gel suction disc one is extracted, the pressure is reduced, and the battery box to be tested is pressed to the vacuum silica gel suction disc one by using the atmospheric pressure, so that the adsorption fixation of the battery box to be tested is realized. After the air path control valve two is opened, the air in the vacuum silica gel suction disc two is extracted, the conveying seat is pressed to the vacuum silica gel suction disc two, and the conveying seat can be fixed synchronously to prevent deviation.

[0027] (2) The test scheme of the present application synchronously starts the DC servo motors on both sides to drive the corresponding side synchronous gears to rotate, and under the action of the rack, the conveying seat and the linkage adsorption structure at the bottom move synchronously. When the contact block in the linkage adsorption structure contacts the elastic touch switch at the first position, the prompt light shows that the conveying seat reaches the initial test station. Then, the impact hanging plate is lifted to the appropriate height by the winch assembly and then dropped, so that the impact piece impacts the battery box to be tested at the first position. Then, the conveying seat and the linkage adsorption structure continue to move synchronously until the contact block contacts the elastic touch switch at the second position, and the prompt light shows that the conveying seat reaches the second test station. In this way, three groups of data are tested and analyzed. The above design effectively avoids the shaking of the battery box to be tested and the left and right deviation of the bottom of the conveying seat, significantly improves the accuracy of the test results, and can more flexibly position the conveying seat position, convenient operation. After the test is completed, the above operation is repeated to move the conveying seat to the initial position. A pair of miniature lifting cylinders in the conveying seat is started to extend the rod body, lift the mounting plate, and under the action of the vacuum silica gel suction cup 1, the battery box to be tested is lifted out of the battery box fixing mold, which is convenient for taking out and placing the next battery box to be tested.

[0028] (3) The test scheme of the present application is that a limiting frame is installed inside the four corner limiting clamping seats. Then the adjustable partition is manually slid to adjust its position, which divides the space inside the limiting frame into two parts, and the battery box to be tested is placed in the limiting frame. Repeat the operation of starting and controlling the vacuum pump to fix the battery box to be tested and the conveying seat until the test of the battery box to be tested is completed. After the test is completed, the corresponding battery box to be tested is taken out. This design can meet the placement, fixation and test requirements of different types of battery boxes, can be flexibly adjusted, significantly improves the applicability, reduces the test cost, and further improves the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is the whole device structure schematic diagram of the present application;

[0030] Figure 2 is the local structure schematic diagram of the conveying table and the conveying seat of the present application;

[0031] Figure 3 is the linkage adsorption structure schematic diagram in the conveying table of the present application;

[0032] Figure 4 is the whole battery box fixing mold (state one) structure schematic diagram of the present application;

[0033] Figure 5 is the conveying seat cross-section front view structure schematic diagram of the present application;

[0034] Figure 6 is the whole battery box fixing mold (state two) structure schematic diagram of the present application;

[0035] Figure 7 is the application Figure 3 Amplification structure schematic diagram of the application

[0036] Figure 8 is the application conveying seat and vacuum adsorption jacking mechanism structure schematic diagram.

[0037] Markings in the figure:

[0038] 1, conveying table; 11, buffer spring; 12, stand; 13, frame; 101, groove;

[0039] 2, conveying seat; 21, rack; 22, DC servo motor; 23, synchronous gear; 24, silica gel pad; 241, annular adsorption magnetic plate; 201, mounting groove; 202, magnetic sheet; 203, through opening;

[0040] 3, battery box fixing mold; 31, corner limiting seat; 32, pressure bearing plate; 33, limiting frame; 34, adjustable partition; 35, clamping piece; 351, stud; 352, fastening cylinder; 301, adjustable sliding groove;

[0041] 4, impact hanging plate; 41, impact piece;

[0042] 5, test stand;

[0043] 6, vacuum adsorption jacking mechanism; 61, micro jacking cylinder; 62, mounting plate; 63, vacuum silica gel suction cup one; 64, air path control valve one; 65, vacuum pump; 66, linkage adsorption structure; 661, sliding seat; 662, T-shaped support plate; 663, vacuum silica gel suction cup two; 664, air path control valve two; 67, mounting rod; 68, elastic touch switch; 69, touch block; 610, prompt light. DETAILED DESCRIPTION

[0044] The specific embodiments of the application will be described in detail below, but it should be understood that the protection scope of the application is not limited by the specific embodiments.

[0045] As Figures 1 to 8 shown, a new energy battery box mechanical property test equipment, comprising:

[0046] The test stand 5 is provided with a pair of stand 12 and a frame 13 on the side.

[0047] The impact hanging plate 4 is movably sleeved on the pair of stand 12, and a group of impact pieces 41 are fixedly arranged on the bottom surface of the impact hanging plate 4 through fixing bolts; it should be noted that the impact pieces 41 can be cylindrical, spherical, square and other irregular shapes, which can be installed according to the needs during testing; in this embodiment, the cylindrical shape is taken as an example.

[0048] The winch assembly is arranged on the frame 13 and used for lifting the impact lifting plate 4. It is to be noted that the winch assembly includes a drum, a rope, a pulley block and a motor. The rope is connected with the impact lifting plate 4. The working principle is disclosed in the prior art, and the embodiment will not be described in detail.

[0049] Further comprising a conveying table 1 fixedly embedded in the test table base 5. A conveying seat 2 is slidably arranged in the port of the conveying table 1. A battery box fixing mold 3 is arranged on the conveying seat 2 and used for limiting and placing the battery box.

[0050] The battery box fixing mold 3 comprises a pressure bearing plate 32, corner limiting clamping seats 31 arranged at four corners of the pressure bearing plate 32, limiting frames 33 fixedly arranged at inner sides of the four corner limiting clamping seats 31 and an adjustable plate structure arranged on the limiting frames 33. The adjustable plate structure is used for adapting to fixing battery boxes of different specifications.

[0051] The adjustable plate structure comprises an adjustable partition plate 34 arranged at the inner side of the limiting frame 33. Two sides of the limiting frame 33 are symmetrically and throughly provided with adjustable sliding grooves 301. A clamping piece 35 is movably arranged in each adjustable sliding groove 301. Each clamping piece 35 is divided into a threaded stud 351 and a fastening cylinder 352 screwed on the threaded stud 351. One end of each threaded stud 351 is fixedly connected to the two sides of the adjustable partition plate 34. The limiting frame 33 is installed at the inner side of the four corner limiting clamping seats 31. Then the adjustable partition plate 34 is manually slid to divide the inner space of the limiting frame 33 into two parts. The battery box to be tested is placed in the limiting frame 33. The operation of starting and controlling the vacuum pump 65 is repeated to fix the battery box to be tested and the conveying seat 2 until the test of the battery box to be tested is completed. After the test is completed, the corresponding battery box to be tested is taken out. The design can meet the placing, fixing and testing requirements of different types of battery boxes, can be flexibly adjusted, significantly improves the applicability, reduces the testing cost and improves the testing efficiency.

[0052] In order to conveniently disassemble and assemble the battery box fixing mold 3, the surface of the conveying seat 2 is provided with a mounting groove 201. A silica gel pad 24 with a ring-shaped adsorbing magnetic plate 241 is embedded in the groove. A magnetic sheet 202 corresponding to the ring-shaped adsorbing magnetic plate 241 is arranged at the edge of the bottom surface of the pressure bearing plate 32. The two form a magnetic attraction fixing structure. When the entire mold together with the battery box is placed in the mounting groove 201, the magnetic sheet 202 on the bottom surface of the pressure bearing plate 32 in the mold is in contact with the silica gel pad 24 in the groove and is adhered to the ring-shaped adsorbing magnetic plate 241 in the groove. The two form a magnetic attraction fixing structure. The design facilitates the disassembly and assembly of the battery box fixing mold 3.

[0053] Further comprising a conveying positioning mechanism used for linear conveying of the conveying seat 2.

[0054] The conveying positioning mechanism comprises a rack 21 fixedly connected to the surfaces on both sides of the conveying seat 2 and a pair of DC servo motors 22 fixedly connected to the surfaces of the test base 5 on both sides of the conveying table 1. The main shafts of the DC servo motors 22 are fixedly connected with synchronous gears 23. Each side of the synchronous gears 23 is meshed with each side of the rack 21 to realize the accurate linear movement of the conveying seat 2.

[0055] In order to simulate the impact of the battery box, a buffer spring 11 is sleeved on each column 12. The bottom surface of the buffer spring 11 is fixedly installed on the test base 5. The buffer spring 11 and the silica gel pad 24 constitute a buffer device. The buffer device is used in cooperation to simulate the deformation energy absorption effect of the equipment shell.

[0056] The vacuum adsorption jacking mechanism 6 is further included. The vacuum adsorption jacking mechanism 6 is used for adsorbing and fixing and jacking the battery box fixing mold 3. The middle part of the silica gel pad 24 is provided with a through opening 203 for the vacuum adsorption jacking mechanism 6 to pass through.

[0057] The vacuum adsorption jacking mechanism 6 comprises a pair of micro jacking cylinders 61 fixedly connected to the conveying seat 2, an installation plate 62 fixedly connected to the top surface of the rod body of the micro jacking cylinder 61, a vacuum silica gel suction disc one 63 fixedly embedded at the four corners of the installation plate 62, a gas path control valve one 64 fixedly connected to the bottom surface of each vacuum silica gel suction disc one 63, and a vacuum pump 65 fixedly connected to the side surface of the conveying table 1. By controlling the start of the vacuum pump 65 and opening the gas path control valve one 64, the air in the vacuum silica gel suction disc one 63 is extracted, the pressure is reduced, and the measured battery box is pressed to the vacuum silica gel suction disc one 63 by using the atmospheric pressure of the outside world, so as to realize the adsorption and fixing of the measured battery box and avoid deviation.

[0058] The vacuum adsorption jacking mechanism 6 further comprises a linkage adsorption structure 66. The middle part of the port of the conveying table 1 is downwardly provided with a groove 101. The linkage adsorption structure 66 comprises a sliding seat 661 slidingly arranged in the groove 101, a T-shaped supporting plate 662 fixedly connected to the top surface of the sliding seat 661, a pair of vacuum silica gel suction discs two 663 fixedly embedded in the T-shaped supporting plate 662, and a gas path control valve two 664 fixedly connected to the bottom end of each vacuum silica gel suction disc two 663. The air pipe line of the vacuum pump 65 is connected with the gas path control valve one 64 and the gas path control valve two 664. When the gas path control valve two 664 is opened, the air in the vacuum silica gel suction disc two 663 is extracted, the conveying seat 2 is pressed to the vacuum silica gel suction disc two 663, so as to synchronously fix the conveying seat 2 and avoid deviation.

[0059] The embodiment further has a preferred implementation, the conveying positioning mechanism further comprises a mounting rod 67 fixedly connected to the inner wall of the port side of the groove 101, the height of the mounting rod 67 is lower than the height of the groove of the groove 101, a group of elastic touch switches 68 are fixedly arranged on the mounting rod 67, a T-shaped supporting plate 662 is fixedly connected with a touch block 69 on the side facing the mounting rod 67, the elastic touch switch 68 is connected with a prompt lamp 610, and the prompt lamp 610 is fixedly arranged on the test base 5; when all the elastic touch switches 68 are triggered in sequence, the prompt lamp 610 displays that the conveying seat 2 reaches the test station.

[0060] The embodiment further has a preferred implementation, each corner limiting seat 31 is in an L-shaped structure and is integrally formed with the pressure bearing plate 32, a limiting frame 33 is fixedly installed inside each corner limiting seat 31, and the limiting frame 33 is fixedly connected with each corner limiting seat 31 through fixed bolts at four corners of the limiting frame 33, for disassembly and assembly of the limiting frame 33.

[0061] It should be further explained that the actual size of each component in the application file is selected and installed before implementation according to actual on-site needs. In addition, it should be noted that the application file only improves the defects of the existing battery box mechanical performance test equipment, such as inflexible and inaccurate conveying positioning, unstable fixing, and insufficient adaptability and universality, and does not involve other aspects. The problems in the background art are solved by adopting the vacuum adsorption and adjustable fixing modes.

[0062] In order to facilitate the understanding of the scheme embodiment by the person skilled in the art, the working principle of the scheme will be briefly described in combination with a specific application scenario:

[0063] In actual use, the test of the battery box of the application is divided into two test scenarios of an integral battery box and a split battery box.

[0064] a. Test of the integral battery box;

[0065] To test an integrated battery box, first select a suitable battery box fixing mold 3. Place the battery box to be tested on the mold, ensuring its four corners engage with the four corner retaining brackets 31. Then, place the entire mold along with the battery box into the mounting groove 201. At this point, the magnetic sheet 202 on the bottom surface of the pressure plate 32 in the mold contacts the silicone pad 24 in the groove and adheres to its inner annular magnetic adsorption plate 241, forming a magnetic fixation. This design facilitates the assembly and disassembly of the battery box fixing mold 3. After initial fixation, start the vacuum pump 65 and open the first air control valve 64. At this time, the air in the first vacuum silicone suction cup 63 is extracted, reducing the pressure. Using external atmospheric pressure, the battery box to be tested is pressed against the first vacuum silicone suction cup 63, achieving adsorption and fixation. After opening the second air control valve 664, the air in the second vacuum silicone suction cup 663 is extracted, pressing the delivery seat 2 against the second vacuum silicone suction cup 663.

[0066] Subsequently, the DC servo motors 22 on both sides are started synchronously, driving the corresponding synchronous gears 23 to rotate. Under the action of the rack 21, the conveyor seat 2 and the bottom linkage adsorption structure 66 move synchronously. When the contact block 69 in the linkage adsorption structure 66 contacts the elastic touch switch 68 at the first position, the indicator light 610 shows that the conveyor seat 2 has reached the initial test position. Next, the impact plate 4 is lifted to a suitable height using a winch assembly and then lowered, so that the impact component 41 performs an impact test on the battery box under test at the first position. After that, the conveyor seat 2 and the linkage adsorption structure 66 continue to move synchronously until the contact block 69 contacts the elastic touch switch 68 at the second position, and the indicator light 610 shows that the conveyor seat 2 has reached the second test position. This process is repeated to test three sets of data and analyze them. The above design effectively avoids the shaking of the battery box under test and the left and right displacement of the bottom of the conveyor seat 2, significantly improving the accuracy of the test results, while also allowing for more flexible positioning of the conveyor seat 2 and convenient operation.

[0067] After the test is completed, repeat the above operation to move the conveyor seat 2 to the initial position. Activate the pair of miniature lifting cylinders 61 inside the conveyor seat 2 to extend the rods and lift the mounting plate 62. Under the action of the vacuum silicone suction cup 63, the battery box to be tested is pushed out from the battery box fixing mold 3 for easy removal, so that the next battery box to be tested can be placed and fixed.

[0068] b. Test of separate battery box

[0069] If the split battery box (for example, two) is tested, first install the limiting frame 33 inside the four corner limiting seat 31. Then manually slide the adjustable partition 34 to adjust its position, divide the space inside the limiting frame 33 into two, and put the battery box to be tested into the limiting frame 33. Repeat the operation of starting and controlling the vacuum pump 65 to fix the battery box to be tested and the conveying seat 2 until the test of the battery box to be tested is completed. After the test is completed, the corresponding battery box to be tested is taken out. The design can meet the placement, fixation and test requirements of different types of battery boxes, can be flexibly adjusted, significantly improves the applicability, reduces the test cost, and thus improves the test efficiency.

[0070] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A new energy battery box mechanical property testing equipment, comprising a test base (5) and a frame, the frame comprising a pair of vertical columns (12) fixed on the test base (5) and a lateral frame (13); an impact hanging plate (4) movably sleeved on the pair of vertical columns (12), the bottom surface of the impact hanging plate (4) being fixedly provided with a group of impact pieces (41) through fixing bolts; a winch assembly provided on the frame (13) and used for lifting the impact hanging plate (4); characterized in that further comprising: a conveying table (1) fixedly embedded in the test base (5), a conveying seat (2) being slidably arranged in the port of the conveying table (1), and a battery box fixing mold (3) being arranged on the conveying seat (2) and used for limiting and placing the battery box; the battery box fixing mold (3) comprising a pressure bearing plate (32), corner limiting clamping seats (31) arranged at four corners of the pressure bearing plate (32), limiting frames (33) fixedly arranged on the inner sides of the four corner limiting clamping seats (31), and an adjustable plate structure arranged on the limiting frames (33) and used for adapting to fix battery boxes of different specifications; a conveying positioning mechanism used for linear conveying of the conveying seat (2); a vacuum adsorption jacking mechanism (6) used for adsorbing and fixing and jacking up the battery box fixing mold (3); the vacuum adsorption jacking mechanism (6) comprising a pair of micro jacking cylinders (61) fixedly connected in the conveying seat (2), an installation plate (62) fixedly connected to the top surface of the rod body of the micro jacking cylinder (61), a vacuum silica gel suction disc I (63) fixedly embedded at four corners of the installation plate (62), a gas path control valve I (64) fixedly connected to the bottom surface of each vacuum silica gel suction disc I (63), and a vacuum pump (65) fixedly connected to the side surface of the conveying table (1); the vacuum adsorption jacking mechanism (6) further comprising a linkage adsorption structure (66), a groove (101) being formed in the middle portion of the port of the conveying table (1) and extending downward, the linkage adsorption structure (66) comprising a sliding seat (661) slidably arranged in the groove (101), a T-shaped supporting plate (662) fixedly connected to the top surface of the sliding seat (661), a pair of vacuum silica gel suction discs II (663) fixedly embedded in the T-shaped supporting plate (662), and a gas path control valve II (664) fixedly connected to the bottom end of each vacuum silica gel suction disc II (663), the gas pipe line of the vacuum pump (65) being connected with the gas path control valve I (64) and the gas path control valve II (664).

2. The mechanical property testing apparatus for new energy battery boxes according to claim 1, characterized in that, the conveying positioning mechanism comprising a rack (21) fixedly connected in parallel to the side surfaces of the conveying seat (2) and a pair of direct current servo motors (22) fixedly connected to the surfaces of the test base (5) and located on both sides of the conveying table (1), the main shafts of the direct current servo motors (22) being fixedly connected with synchronous gears (23), and each side synchronous gear (23) being meshingly connected with each side rack (21).

3. The mechanical property testing apparatus for new energy battery boxes according to claim 2, characterized in that, The surface of the conveying seat (2) is provided with a mounting groove (201), and a silica gel pad (24) with an annular adsorption magnetic plate (241) is embedded in the groove. The bottom edge of the pressure bearing plate (32) is provided with a magnetic sheet (202) corresponding to the annular adsorption magnetic plate (241), and the two form a magnetic attraction fixing structure. The silica gel pad (24) and the pressure bearing plate (32) are provided with a through opening (203) in the middle to pass through the vacuum adsorption jacking mechanism (6).

4. The mechanical property testing apparatus for new energy battery boxes according to claim 1, characterized in that, A buffer spring (11) is sleeved on each of the columns (12), and the bottom surface of the buffer spring (11) is fixedly installed on the test base (5).

5. The mechanical property testing apparatus for new energy battery boxes according to claim 1, characterized in that, The conveying positioning mechanism further comprises a mounting rod (67) fixedly connected to the inner wall of one side of the port of the groove (101), wherein the height of the mounting rod (67) is lower than the height of the slot of the groove (101), a group of elastic touch switches (68) are fixedly arranged on the mounting rod (67), a T-shaped supporting plate (662) is fixedly connected with a touch block (69) on the side facing the mounting rod (67), the elastic touch switches (68) are connected with a prompt light (610), and the prompt light (610) is fixedly arranged on the test base (5); when all the elastic touch switches (68) are triggered in sequence, the prompt light (610) displays that the conveying seat (2) reaches the test station.

6. The mechanical property testing apparatus for new energy battery boxes according to claim 1, characterized in that, Each of the corner limiting clamping seats (31) is in an L-shaped structure and is integrally formed with the pressure bearing plate (32), a limiting frame (33) is fixedly installed in the inner side of each of the corner limiting clamping seats (31), and the limiting frame (33) is fixedly connected with each of the corner limiting clamping seats (31) through fixing bolts at four corners.

7. The mechanical property testing apparatus for new energy battery boxes according to claim 1, characterized in that, The adjustable plate structure comprises an adjustable partition plate (34) arranged in the inner side of the limiting frame (33), and adjustable sliding grooves (301) are through-provided on the two symmetrical sides of the limiting frame (33); a clamping piece (35) is movably arranged in each of the adjustable sliding grooves (301). Each of the clamping pieces (35) comprises a stud (351) and a fastening cylinder (352) threadedly sleeved on the stud (351), and the two studs (351) are fixedly connected with the two sides of the adjustable partition plate (34) at one end.

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