A bonding tool for testing the bonding strength of battery adhesive

Abstract

The present invention discloses a bonding tool for testing the bonding strength of battery adhesives, and relates to the technical field of battery testing. The present invention includes a panel, a pull plate 1, and a cell shell. Four panels are provided, and the bottoms of the four panels are fixedly connected to the upper end of the pull plate 1. The cell shell is arranged in the middle of the four panels. A cover plate is installed above the cell shell, and a pull plate 2 is fixedly connected to the upper end of the cover plate. A shaping mechanism is also provided on each of the panels. Through the setting of the shaping mechanism, a sealed cavity can be formed between four sealing strips in four directions and the cover plate and the surface of the cell shell, and then a colloid is injected into the sealed cavity, so that the thickness of the colloid can be uniform and the surface of the cell shell can be completely covered, thereby ensuring the accuracy of the test results.

Description

Technical Field

[0001] The invention belongs to the technical field of battery testing, and in particular relates to a bonding tool for testing the bonding strength of a battery adhesive. Background Art

[0002] The power battery pack of new energy vehicles is composed of cells through different assembly methods. If the traditional cell wants to become a battery pack, it must first be formed into a module before the next step of packaging, namely Cell-Module-Pack. The module is simply understood as combining the cell and several components together to form a module, and the module is fixed to the battery box by mechanical fastening. However, with the increase in the amount of electricity carried by bicycles, the number of standardized cells is also increasing, and the number of modules is also increasing, which increases the number of parts and causes the weight and cost to rise. In order to simplify the battery pack structure, CTP (Cell To Pack) has come into everyone's eyes. CTP is a battery packaging technology that uses structural adhesive to directly form a battery pack (To) from the cell (Cell). CTP technology reduces the burden on the battery pack by reducing or even abandoning the use of modules, which not only improves the system energy density, but also reduces the cost of the battery pack.

[0003] Therefore, in order to achieve a better fixing effect of the battery pack, it is necessary to use adhesive to bond the bottom of the battery (i.e., the bottom of the battery cell shell) to the water cooling plate or the structural bottom plate. The bonding effects of different adhesives vary greatly. In order to achieve a more ideal bonding effect, it is necessary to test the bonding effect of different adhesives to the bottom of the battery cell shell. The bonding strength of the battery adhesive is related to the thickness. In the prior art, when conducting a bonding strength test of the battery adhesive, it is impossible to ensure that the thickness of the colloid that the battery cell shell contacts is consistent, resulting in low accuracy of the test results.

[0004] Therefore, the existing test bonding assembly cannot meet the needs in actual use, so there is an urgent need for improved technology to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a bonding tool for testing the bonding strength of battery adhesives to solve the above-mentioned problems.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a bonding tool for testing the bonding strength of battery adhesives, comprising a surrounding plate, a pull plate, and a battery cell shell. Four surrounding plates are provided, and the bottoms of the four surrounding plates are commonly fixedly connected to the upper end of the pull plate. The battery cell shell is arranged at the middle position of the four surrounding plates. A bolt is threadedly installed on the side wall of the surrounding plate, and one end of the bolt is close to the battery cell shell and abuts against the side wall of the battery cell shell. A cover plate is installed above the battery cell shell, and a pull plate is fixedly connected to the upper end of the cover plate. A slide plate is slidably connected to the side wall of each of the surrounding plates near the bottom, and the slide plate slides through the side wall of the surrounding plate, and a bolt is threadedly installed on the end of the slide plate close to the battery cell shell, and one end of the bolt is abutted against the bottom of the battery cell shell. A shaping mechanism is also provided on each of the surrounding plates.

[0008] Furthermore, a spring one is fixedly connected between the slide plate and the enclosure plate, a fixing plate is fixedly connected to the side wall of the enclosure plate below the slide plate, a positioning rod is slidably connected to the fixing plate and an end of the positioning rod away from the slide plate is fixedly connected to the chassis, a spring three is fixedly connected between the fixing plate and the chassis, the spring three sleeve is arranged on the outside of the positioning rod, two positioning holes are provided at the bottom of the slide plate, an arc portion is provided at the upper end of the positioning rod, and the arc portion of the positioning rod abuts against the positioning hole on the slide plate.

[0009] Furthermore, the shaping mechanism includes a cylinder, a sealing belt, a shaping plate, roller one and roller two. A cylinder is fixedly connected to the side wall of the enclosure above the slide, the end of the piston rod of the cylinder is fixedly connected to a base, a frame is fixedly connected to the base, roller one is rotatably mounted on the side wall of the frame, roller one is fixedly connected to roller one, a sealing belt is wound around roller one, and the shaping plate is fixedly connected to the inner upper wall of the frame.

[0010] Furthermore, a ratchet is fixedly connected to one end of the roller shaft located inside the frame, a retaining ring is fixedly installed inside the frame, a retaining ring is provided with a slot, a retaining tooth is slidably connected inside the slot, a spring 2 is fixed between the retaining tooth and the slot, and the end of the retaining tooth away from the slot is movably engaged with the ratchet.

[0011] Furthermore, the shaping plate is "L"-shaped, a slide groove is provided on the enclosure, the "L"-shaped shaping plate is provided with a horizontal portion and a vertical portion, the horizontal portion of the shaping plate is slidably connected in the slide groove, one end of the sealing belt passes through the bottom of the shaping plate and fits the vertical portion of the shaping plate to extend to the top of the shaping plate, and support plates are respectively fixedly connected to the front and rear side walls of the vertical portion of the shaping plate, a second roller shaft is rotatably connected to the support plate, the second roller shaft is fixedly connected to the second roller, a motor seat is fixedly connected to the side wall of the enclosure near the top, a motor is fixedly connected to the motor seat, and the output shaft of the motor is fixedly connected to the second roller shaft.

[0012] Furthermore, an avoidance groove is opened at the upper end of the vertical part of the shaping plate, and a pulley 1 is installed inside the avoidance groove. The two ends of the pulley 1 are rotatably connected to the support plates on the front and rear side walls of the shaping plate respectively, and the pulley 1 is rotationally fitted with the sealing belt. Connecting rods are respectively fixed on the front and rear side walls at the corners of the "L"-shaped shaping plate, and a pulley 2 is rotatably installed between the two connecting rods, and the pulley 2 is rotationally fitted with the sealing belt.

[0013] Furthermore, a bevel gear 1 is fixedly connected to the roller shaft 1, a pulley 2 is rotatably connected to the base, a bevel gear 2 is fixedly connected to the other end of the pulley 2, the bevel gear 1 is meshingly connected to the bevel gear 2, the base is also rotatably connected to the pulley 1, a belt is rotatably connected between the pulley 2 and the pulley 1, a connecting seat is provided on one side of the pulley 1, the connecting seat is fixedly connected to the base, a storage box is fixedly connected to the side wall of the connecting seat, oil is stored in the storage box, a connecting column is fixedly connected to the base, an oil injection shaft is rotatably installed between the connecting column and the storage box, the outer sleeve of the oil injection shaft is provided with a sponge, the interior of the oil injection shaft is hollow, and the storage box and the oil injection shaft are rotatably connected.

[0014] Furthermore, a plurality of oil holes are provided on the oil injection shaft, the internal sliding seal of the storage box is connected with a piston plate, the lower end of the piston plate is fixedly connected with a sleeve, the upper end of the pulley 1 is fixedly connected with a threaded rod, and the threaded rod is threadedly connected with the sleeve.

[0015] Furthermore, a glue injection hole is opened in the middle position of the pull plate 2, a blocking column is inserted into the glue injection hole, and positioning pins are fixedly connected to the bottom of the left and right sides of the pull plate 2 respectively, wherein a connecting plate is fixedly connected to the two enclosures, and pin holes corresponding to the positioning pins are provided on the connecting plate.

[0016] Furthermore, connecting blocks are provided on the side walls of adjacent enclosures, and the four enclosures are fixed together through the connecting blocks.

[0017] The present invention has the following beneficial effects:

[0018] 1. Through the arrangement of the cylinder, shaping plate, sealing belt and other structures, the shaping plate and sealing belt can be driven by the cylinder to move, so that sealing cavities of different depths can be formed between the sealing belt and the cover plate, thereby forming colloids of different thicknesses and testing the bonding strength of battery adhesives of different thicknesses.

[0019] 2. Through the arrangement of the shaping plate, sealing tape, cover plate and other structures, a sealed cavity can be formed between the four sealing tapes in four directions and the cover plate and the surface of the battery cell shell. Then, by injecting colloid into the sealed cavity, a colloid with uniform thickness is formed that can completely cover the surface of the battery cell shell, thereby ensuring the accuracy of the test results.

[0020] 3. The cooperation of the latch teeth and the ratchet wheel can prevent the roller from rotating, thereby avoiding the sealing belt wrapped around the roller from becoming loose and wrinkled, making it impossible for the sealing belt to fit tightly with the shaping plate, affecting the amount of glue injected into the subsequent sealing cavity, and also causing the thickness of the colloid contacted by the surface of the battery cell shell to be inconsistent, resulting in low accuracy of the test results.

[0021] 4. Through the setting of the motor, roller one and roller two, the used sealing tape can be rolled up. When the sealing tape is rolled up, the other end can drive roller one to rotate. When roller one rotates, the unused sealing tape can be re-attached to the shaping plate. The sealing tape can be automatically replaced, which significantly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side structural diagram of a single shaping mechanism in the present invention;

[0025] Figure 3 Schematic diagram of the connection structure of the sponge in the present invention;

[0026] Figure 4 Schematic diagram of the connection structure of the piston rod in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the oil injection shaft in the present invention;

[0028] Figure 6 It is a front structural diagram of a single shaping mechanism in the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged view of point B in the middle;

[0030] Figure 8 It is a schematic diagram of the connection structure of the ratchet in the present invention;

[0031] Fig. 9 It is a schematic diagram of the connection structure of the pulley 1 in the present invention;

[0032] Fig.10 It is a top view of the overall structure of the present invention;

[0033] Fig.11It is a structural schematic diagram of the positioning rod in the present invention;

[0034] Fig.12 For the present invention Figure 2 Enlarged view of point A in the middle.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Enclosure; 2. Pull plate 1; 3. Chassis; 4. Slide plate; 5. Cylinder; 6. Base; 7. Roller 1; 8. Frame; 9. Motor; 10. Roller 2; 11. Cover plate; 12. Blocking column; 13. Pull plate 2; 14. Bolt 1; 15. Connecting block; 16. Spring 1; 17. Fixing plate; 18. Battery shell; 19. Pulley 1; 20. Storage box; 21. Bevel gear 1; 22. Sealing belt; 23. Support plate; 24. Positioning pin; 25. Connecting column; 26. Connecting seat; 27. Oiling shaft; 27 1. Oil hole; 28. Sponge; 29. ​​Threaded rod; 30. Sleeve; 31. Bolt 2; 32. Piston plate; 33. Forming plate; 34. Roller 1; 35. Motor seat; 36. Roller 2; 37. Bevel gear 2; 38. Pulley 2; 39. Belt; 40. Avoidance groove; 41. Pulley 1; 42. Snap ring; 43. Ratchet; 44. Slot; 45. Spring 2; 46. Snap tooth; 47. Spring 3; 48. Positioning rod; 49. Slide; 50. Connecting rod; 51. Pulley 2; 52. Connecting plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] See also Figure 1-8 As shown, the present invention is a bonding tool for testing the bonding strength of battery adhesive, including a panel 1, a pull plate 2, and a battery cell shell 18. Four panels 1 are provided, and the bottoms of the four panels 1 are fixedly connected to the upper end of the pull plate 2. The battery cell shell 18 is arranged in the middle of the four panels 1. A bolt 14 is threadedly installed on the side wall of the panel 1. One end of the bolt 14 close to the battery cell shell 18 abuts against the side wall of the battery cell shell 18. The battery cell shell 18 is fixed by the bolt 14, which is convenient for subsequent testing of the bonding strength of the battery adhesive. A cover plate 11 is installed on the top, and a pull plate 13 is fixedly connected to the upper end of the cover plate 11. A slide plate 4 is slidably connected to the side wall of each enclosure 1 near the bottom. The slide plate 4 slides through the side wall of the enclosure 1, and a bolt 31 is threadedly installed at one end of the slide plate 4 near the battery cell shell 18. One end of the bolt 31 abuts against the bottom of the battery cell shell 18. The bolt 31 can support and fix the bottom of the battery cell shell 18 and adjust the height of the battery cell shell 18 to adapt to the bonding strength test of battery adhesives of different thicknesses. A shaping mechanism is also provided on each enclosure 1.

[0039] A spring 16 is fixed between the slide plate 4 and the enclosure 1, a fixing plate 17 is fixed to the side wall of the enclosure 1 below the slide plate 4, a positioning rod 48 is slidably connected to the fixing plate 17, and the end of the positioning rod 48 away from the slide plate 4 is fixed to the chassis 3, a spring 3 47 is fixed between the fixing plate 17 and the chassis 3, and the spring 3 47 is sleeved on the outside of the positioning rod 48. When the battery shell 18 needs to be fixed between the four enclosures 1, the resistance of the spring 16 is overcome to pull the slide plate 4 in the direction away from the enclosure 1, so that the slide plate 4 will not hinder the battery shell 18 from being placed in the four Between the enclosure 1, two positioning holes are provided at the bottom of the skateboard 4, and the upper end of the positioning rod 48 is provided with an arc portion, and the arc portion of the positioning rod 48 abuts against the positioning holes on the skateboard 4. The skateboard 4 is pulled until the positioning rod 48 abuts against one of the positioning holes. Under the action of the spring three 47, the positioning rod 48 abuts in one of the positioning holes, which facilitates the removal and placement of the battery cell shell 18. After the battery cell shell 18 is installed and placed, the skateboard 4 is pushed again to reset, so that the positioning rod 48 abuts against the other positioning hole. At this time, the skateboard 4 can be positioned, which is convenient for the installation of the bolt two 31.

[0040] The shaping mechanism includes a cylinder 5, a sealing belt 22, a shaping plate 33, a roller 7 and a roller 2 10. A cylinder 5 is fixedly connected to the side wall of the enclosure 1 above the slide plate 4. The end of the piston rod of the cylinder 5 is fixedly connected to a base 6. A frame 8 is fixedly connected to the base 6. A roller 34 is rotatably installed on the side wall of the frame 8. The roller 7 is fixedly connected to the roller 34. A sealing belt 22 is wound around the roller 34. The shaping plate 33 is fixedly connected to the inner upper wall of the frame 8. The base 6 can be driven up and down by the cylinder 5. The base 6 drives the frame 8 and the sealing belt 22 and the shaping plate 33 on the frame 8 to move synchronously. A sealed cavity is formed between the four sealing belts 22 in four directions and the surface of the cover plate 11 and the battery core shell 18. Since the cover plate 11 is connected to the enclosure 1, the position of the cover plate 11 is fixed. When the sealing belt 22 moves up and down, the depth of the cavity formed with the cover plate 11 changes, thereby forming colloids of different thicknesses. The bonding strength of battery adhesives of different thicknesses can ensure that the thickness of the formed colloid is uniform, avoiding the problem in the prior art that when testing the bonding strength of battery adhesives of different thicknesses, the thickness of the colloid contacted by the edge part of the battery cell shell 18 surface is inconsistent with the thickness of the colloid contacted by the middle part of the battery cell shell 18 surface, resulting in low accuracy of the test results. In addition, the waste of colloid can be reduced, because in the prior art, the colloid is usually not subjected to shaping restrictions when coating the colloid, and the area of ​​the colloid will be larger than the surface area of ​​the battery cell shell 18, so that the colloid can completely cover the battery cell shell 18, resulting in waste. In the present application, the sealed cavity formed between the four sealing strips 22 in four directions and the cover plate 11 and the surface of the battery cell shell 18 can shape the colloid and ensure that the area of ​​the sealing cavity matching the surface of the battery cell shell 18 is the same, so that the colloid can completely cover the surface of the battery cell shell 18 without causing waste.

[0041] A ratchet 43 is fixedly connected to one end of the roller shaft 34 located inside the frame 8, and a snap ring 42 is fixedly installed inside the frame 8. A slot 44 is opened on the snap ring 42, and a snap tooth 46 is slidably connected inside the slot 44. A spring 2 45 is fixedly connected between the snap tooth 46 and the slot 44, and the end of the snap tooth 46 away from the slot 44 is movably engaged with the ratchet 43. The cooperation of the snap tooth 46 and the ratchet 43 can prevent the roller 7 from rotating, thereby avoiding the sealing belt 22 wrapped around the roller 7 from becoming loose and wrinkled, making it impossible for the sealing belt 22 to fit tightly with the shaping plate 33, affecting the amount of glue injected into the subsequent sealing cavity, and also causing the thickness of the colloid contacted by the surface of the battery cell shell 18 to be inconsistent, and the accuracy of the test result is low.

[0042] The shaping plate 33 is in an "L" shape, and a slide groove 49 is provided on the enclosure 1. The "L"-shaped shaping plate 33 is provided with a horizontal portion and a vertical portion. The horizontal portion of the shaping plate 33 is slidably connected in the slide groove 49, and one end of the sealing belt 22 passes under the shaping plate 33 and fits the vertical portion of the shaping plate 33 to extend to the top of the shaping plate 33. The setting of the shaping plate 33 can shape and support the sealing belt 22, so that the sealing belt 22 forms a plane to avoid wrinkles. At the same time, when injecting glue into the sealing cavity, the glue can be prevented from squeezing and deforming the sealing belt 22, resulting in inaccurate glue injection amount in the sealing cavity and uneven thickness of the glue.

[0043] The front and rear side walls of the vertical part of the shaping plate 33 are respectively fixed with support plates 23, and a roller shaft 2 36 is rotatably connected to the support plate 23, and the roller shaft 2 36 is fixedly connected to the roller 2 10. A motor seat 35 is fixedly connected to the side wall of the enclosure 1 near the upper position, and a motor 9 is fixedly connected to the motor seat 35. The output shaft of the motor 9 is fixedly connected to the roller shaft 2 36, and the motor 9 can drive the roller shaft 2 36 to rotate. When the roller shaft 2 36 rotates, the roller 2 10 rotates, and the roller 2 10 can rewind the used sealing tape 22. When the sealing tape 22 is rewound, the other end of the roller 1 7 can drive the roller 1 7 to rotate. At this time, the driving force of the roller 1 7 can make the latch tooth 46 overcome the elastic force of the spring 2 45 and retract into the inside of the latch groove 44, so that the roller 1 34 rotates. When the roller 1 7 rotates, the unused sealing tape 22 can be re-attached to the shaping plate 33, and the sealing tape 22 can be automatically replaced, which significantly improves the work efficiency.

[0044] An avoidance groove 40 is provided at the upper end of the vertical portion of the shaping plate 33, and a pulley 41 is installed inside the avoidance groove 40. The two ends of the pulley 41 are rotatably connected to the support plates 23 on the front and rear side walls of the shaping plate 33, respectively. The pulley 41 is rotationally fitted with the sealing belt 22. Connecting rods 50 are respectively fixed to the front and rear side walls at the corners of the "L"-shaped shaping plate 33, and a pulley 51 is rotatably installed between the two connecting rods 50. The pulley 51 is rotationally fitted with the sealing belt 22. Through the cooperation of the pulley 41 and the pulley 51, the sealing belt 22 can be rolled up faster and smoother, thereby improving work efficiency.

[0045] A bevel gear 21 is also fixedly connected to the roller shaft 34, a pulley 2 38 is rotatably connected to the base 6, and a bevel gear 2 37 is fixedly connected to the other end of the pulley 2 38, and the bevel gear 21 is meshed with the bevel gear 2 37. The base 6 is also rotatably connected to the pulley 19, and a belt 39 is rotatably connected between the pulley 2 38 and the pulley 19. A connecting seat 26 is provided on one side of the pulley 19, and the connecting seat 26 is fixedly connected to the base 6. A storage box 20 is fixedly connected to the side wall of the connecting seat 26, and oil is stored in the storage box 20. A connecting column 25 is fixedly connected to the base 6, and an oil injection shaft 27 is rotatably installed between the connecting column 25 and the storage box 20. The outer sleeve of the oil injection shaft 27 is provided with a sponge 28, and the interior of the oil injection shaft 27 is hollow and the storage box 20 and the oil injection shaft 27 are rotatably connected. A plurality of oil holes 2 are provided on the oil injection shaft 27. 71. The internal sliding seal of the storage box 20 is connected with a piston plate 32. The lower end of the piston plate 32 is fixedly connected with a sleeve 30. The upper end of the pulley 19 is fixedly connected with a threaded rod 29. The threaded rod 29 is threadedly connected with the sleeve 30. The oil inside the storage box 20 can be sprayed onto the sponge 28 through the oil hole 271. The sponge 28 fits the sealing belt 22. When the sealing belt 22 is wound and moved, it drives the sponge 28 to rotate. The oil on the sponge 28 is smeared on the sealing belt 22 to form an oil film on the sealing belt 22. In this way, when the colloid contacts the sealing belt 22, it will be blocked by the oil film, so that the colloid cannot bond with the sealing belt 22, so as to avoid affecting the subsequent solidification of the colloid. When the pull plate 1 2 and the pull plate 2 13 are pulled, if the colloid bonds with the sealing belt 22, it will affect the test results of the bonding strength of the battery adhesive between the battery cell shell 18 and the cover plate 11.

[0046] A glue injection hole is opened in the middle position of the pull plate 13, and a blocking column 12 is inserted into the glue injection hole. Battery adhesive can be injected into the sealed cavity through the glue injection hole. After the glue injection is completed, the glue injection hole is sealed with the blocking column 12 to ensure that the thickness of the formed colloid is uniform. Positioning pins 24 are respectively fixed to the bottom of the left and right sides of the pull plate 13, and connecting plates 52 are fixed to two enclosures 1. The connecting plates 52 are provided with pin holes corresponding to the positioning pins 24. The cooperation of the positioning pins 24 and the pin holes facilitates the positioning of the cover plate 11 and improves the installation accuracy. Connecting blocks 15 are provided on the side walls of adjacent enclosures 1, and the four enclosures 1 are respectively fixed together by the connecting blocks 15.

[0047] Working principle:

[0048] First, according to the colloid thickness to be tested, pull the slide plate 4 until the positioning rod 48 abuts against the positioning hole. Under the action of the spring three 47, the positioning rod 48 abuts in the positioning hole. The bolt two 31 adjusts the height position of the battery shell 18 and supports and fixes its bottom. Then, the battery shell 18 is fixed as a whole by the bolt one 14. Then, the base 6 can be driven up and down by the cylinder 5. The base 6 drives the frame 8 and the sealing belt 22 and the shaping plate 33 on the frame 8 to move synchronously. At this time, the sealing belt 22 is coated with an oil film. According to the colloid thickness to be tested, the sealing belt 22 and the shaping plate 33 are moved to a suitable position, and then the pull plate two 13 is matched with the positioning pin 24 and the pin hole. Installed on the enclosure 1, at this time, the cover plate 11 is sealed above the battery core shell 18 to form a sealed cavity, and the battery adhesive can be injected into the sealed cavity through the glue injection hole. After the glue injection is completed, the glue injection hole is sealed with a blocking column 12 to ensure that the thickness of the formed colloid is uniform. After the colloid solidifies, the pulling plate 1 2 and the pulling plate 2 13 are stretched using a tensile testing device to test the bonding strength of the battery adhesive. When the next round of battery adhesive bonding strength of different thicknesses is carried out, the starting motor 9 can drive the roller shaft 2 36 to rotate, so that the sealing belt 22 is close to the shaping plate 33, and the motor 9 can drive the roller shaft 2 36 to rotate. When the roller shaft 2 36 rotates, the roller 2 10 rotates, and the roller 2 10 can The used sealing tape 22 is rolled up, and the other end of the sealing tape 22 can drive the roller 7 to rotate when it is rolled up. At this time, the driving force of the roller 7 can make the card tooth 46 overcome the elastic force of the spring 2 45 and retract into the card slot 44, so that the roller shaft 34 rotates. When the roller 7 rotates, the unused sealing tape 22 can be re-attached to the shaping plate 33, and the sealing tape 22 can be automatically replaced, which significantly improves the work efficiency. At the same time, when the roller shaft 34 rotates, the bevel gear 21 can be driven to rotate, and the bevel gear 21 drives the bevel gear 2 37 to rotate. The bevel gear 2 37 can drive the pulley 19 to rotate through the cooperation of the pulley 2 38 and the belt 39. When the pulley 19 rotates, it drives The threaded rod 29 rotates, and when the threaded rod 29 rotates, it can drive the sleeve 30 to move the piston plate 32 upward, thereby pushing the oil in the storage box 20 into the inside of the oil filling shaft 27, and spraying it onto the sponge 28 through the oil hole 271. When the sealing belt 22 is wound and moved, it drives the sponge 28 to rotate, and the oil in the sponge 28 is smeared on the sealing belt 22, forming an oil film on the sealing belt 22, so that the colloid will be blocked by the oil film when it contacts the sealing belt 22, so that the colloid cannot bond with the sealing belt 22, so as to avoid affecting the subsequent solidification of the colloid. When pulling the pull plate 1 2 and the pull plate 2 13, if the colloid bonds with the sealing belt 22, it will affect the test results of the bonding strength of the battery adhesive between the battery cell shell 18 and the cover plate 11.

[0049] As described above, in order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A bonding tool for testing the bonding strength of a battery adhesive, comprising a surrounding plate (1), a first pulling plate (2), and a battery cell shell (18), characterized in that: The enclosure (1) is provided with four, the bottoms of the four enclosures (1) are fixedly connected to the upper end of the pull plate (2), the battery cell shell (18) is arranged at the middle position of the four enclosures (1), the side wall of the enclosure (1) is threadedly installed with a bolt (14), and the end of the bolt (14) close to the battery cell shell (18) abuts against the side wall of the battery cell shell (18), a cover plate (11) is installed above the battery cell shell (18), and the upper end of the cover plate (11) is fixedly connected with a pull plate (13), each of the side walls of the enclosure (1) is slidably connected with a slide plate (4) near the bottom, the slide plate (4) slides through the side wall of the enclosure (1), and the end of the slide plate (4) close to the battery cell shell (18) is threadedly installed with a bolt (31), and one end of the bolt (31) abuts against the bottom of the battery cell shell (18), and each of the enclosures (1) is also provided with a shaping mechanism; The shaping mechanism comprises a cylinder (5), a sealing belt (22), a shaping plate (33), a roller 1 (7) and a roller 2 (10); a cylinder (5) is fixedly connected to the side wall of the enclosure 1 above the slide plate (4); the end of the piston rod of the cylinder (5) is fixedly connected to a base (6); a frame (8) is fixedly connected to the base (6); a roller 1 (34) is rotatably mounted on the side wall of the frame (8); the roller 1 (7) is fixedly connected to the roller 1 (34); a sealing belt (22) is wound around the roller 1 (34); and the shaping plate (33) is fixedly connected to the inner upper wall of the frame (8); A glue injection hole is provided in the middle of the second pull plate (13).

2. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: A spring one (16) is fixedly connected between the slide plate (4) and the enclosure (1); a fixing plate (17) is fixedly connected to the side wall of the enclosure (1) below the slide plate (4); a positioning rod (48) is slidably connected to the fixing plate (17) and one end of the positioning rod (48) away from the slide plate (4) is fixedly connected to the chassis (3); a spring three (47) is fixedly connected between the fixing plate (17) and the chassis (3); the spring three (47) is sleeved on the outside of the positioning rod (48); two positioning holes are provided at the bottom of the slide plate (4); an arc portion is provided at the upper end of the positioning rod (48), and the arc portion of the positioning rod (48) abuts against the positioning hole on the slide plate (4).

3. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: A ratchet (43) is fixedly connected to one end of the roller shaft (34) located inside the frame (8); a snap ring (42) is fixedly installed inside the frame (8); a snap groove (44) is formed on the snap ring (42); a snap tooth (46) is slidably connected inside the snap groove (44); a spring (45) is fixedly connected between the snap teeth (46) (44); and an end of the snap tooth (46) away from the snap groove (44) is movably snapped to the ratchet (43).

4. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: The shaping plate (33) is L-shaped. A slide groove (49) is provided on the enclosure (1). The L-shaped shaping plate (33) is provided with a horizontal portion and a vertical portion. The horizontal portion of the shaping plate (33) is slidably connected in the slide groove (49). One end of the sealing belt (22) passes through the bottom of the shaping plate (33) and is attached to the vertical portion of the shaping plate (33) to extend to the top of the shaping plate (33). Support plates (23) are fixedly connected to the front and rear side walls of the vertical portion of the shaping plate (33). The support plate (23) is rotatably connected to a second roller shaft (36). The second roller shaft (36) is fixedly connected to a second roller (10). A motor seat (35) is fixedly connected to the side wall of the enclosure (1) near the top. A motor (9) is fixedly connected to the motor seat (35). The output shaft of the motor (9) is fixedly connected to the second roller shaft (36).

5. The bonding tool for testing the bonding strength of battery adhesive according to claim 4, characterized in that: An escape groove (40) is provided at the upper end of the vertical portion of the shaping plate (33), a pulley 1 (41) is installed inside the escape groove (40), two ends of the pulley 1 (41) are respectively rotatably connected to support plates (23) on the front and rear side walls of the shaping plate (33), the pulley 1 (41) is rotationally fitted with the sealing belt (22), connecting rods (50) are respectively fixed to the front and rear side walls at the corners of the "L"-shaped shaping plate (33), a pulley 2 (51) is rotatably installed between the two connecting rods (50), and the pulley 2 (51) is rotationally fitted with the sealing belt (22).

6. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: The roller shaft 1 (34) is also fixedly connected to a bevel gear 1 (21). The base (6) is rotatably connected to a belt pulley 2 (38). The other end of the belt pulley 2 (38) is fixedly connected to a bevel gear 2 (37). The bevel gear 1 (21) is meshingly connected to the bevel gear 2 (37). The base (6) is also rotatably connected to a belt pulley 1 (19). A belt (39) is rotatably connected between the belt pulley 2 (38) and the belt pulley 1 (19). A connecting seat ( 26), a connecting seat (26) is fixedly connected to the base (6), a storage box (20) is fixedly connected to the side wall of the connecting seat (26), and oil is stored in the storage box (20), a connecting column (25) is fixedly connected to the base (6), an oil injection shaft (27) is rotatably mounted between the connecting column (25) and the storage box (20), a sponge (28) is sleeved on the outside of the oil injection shaft (27), the inside of the oil injection shaft (27) is hollow, and the storage box (20) and the oil injection shaft (27) are rotatably connected.

7. A bonding tool for testing the bonding strength of battery adhesive according to claim 6, characterized in that: The oil injection shaft (27) is provided with a plurality of oil holes (271); the storage box (20) is internally slidably sealed and connected to a piston plate (32); the lower end of the piston plate (32) is fixedly connected to a sleeve (30); the upper end of the pulley (19) is fixedly connected to a threaded rod (29); and the threaded rod (29) is threadedly connected to the sleeve (30).

8. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: A blocking column (12) is inserted into the glue injection hole, and positioning pins (24) are fixedly connected to the bottom of the left and right sides of the second pull plate (13), wherein a connecting plate (52) is fixedly connected to the two enclosure plates (1), and the connecting plate (52) is provided with pin holes corresponding to the positioning pins (24).

9. The bonding tool for testing the bonding strength of battery adhesive according to claim 1, characterized in that: Connecting blocks (15) are provided on the side walls of adjacent enclosures (1), and the four enclosures (1) are fixedly connected together via the connecting blocks (15).

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