Solid-state battery welding firmness inspection equipment and method

Abstract

The invention discloses solid-state battery welding firmness inspection equipment and method, and the equipment comprises a mounting plate, and is characterized in that the mounting plate is fixedly connected with a T-shaped plate, the T-shaped plate is fixedly connected with a group of uniformly distributed mounting columns, the group of mounting columns are fixedly connected with a circular plate, the circular plate is fixedly connected with symmetrical mounting short plates, and the mounting short plates are fixedly connected with the T-shaped plate. The symmetrical short mounting plates are fixedly connected with auxiliary electric push rods correspondingly, and push rods of the symmetrical auxiliary electric push rods are fixedly connected with alignment plates correspondingly. And the circular plate is fixedly connected with a circular cover. The invention relates to the technical field of inspection, in particular to solid-state battery welding firmness inspection equipment and a solid-state battery welding firmness inspection method. The technical problem to be solved by the invention is to provide the solid-state battery welding firmness inspection equipment and method, so that in the production process of the solid-state battery, some products are randomly selected for sampling inspection, the equipment is debugged to be lower than the strength borne by a normal welding point for detection, and non-destructive inspection is carried out.

Description

Technical Field

[0001] The present invention relates to the field of inspection technology, and in particular to a solid-state battery welding firmness inspection device and method. Background Art

[0002] A solid-state battery is a battery that uses solid electrodes and solid electrolytes. There is no liquid inside the battery, and inorganic or organic polymer solids are used as the battery's electrolyte. The working principle of a solid-state battery is based on electrochemical reactions, which use solid electrodes and solid electrolytes to store and release electrical energy.

[0003] The welding form of the lithium-ion battery pole ear is that the positive electrode sheet is welded to the positive electrode ear, and the negative electrode sheet is welded to the negative electrode ear. The outer layer of the positive electrode sheet is wrapped with a separator, and the outer layer of the separator is wrapped with the negative electrode sheet. The outer layer of the separator is wrapped with the negative electrode sheet. The positive electrode ear is welded to the battery cover, and the negative electrode sheet is welded to the bottom of the battery shell, thus forming the entire battery current loop. Therefore, if any of them has a weak weld, desoldering or other loose conditions, the battery will have problems such as short circuit or increased impedance, and its cycle performance will not be guaranteed.

[0004] Prior art, for example, a method for detecting the welding firmness of the pole lugs of lithium-ion batteries, application number 201210128251.9. The method can be used for detection on equipment, providing auxiliary and reliable data for detecting and analyzing the welding firmness of the pole lugs, and can achieve batch detection of the welding firmness of the pole lugs without destruction, thereby improving the control rate of defective products. Lithium battery pole lug welding structure and welding firmness detection method, application number 201910890968.9. The welding firmness of the pole lug and the busbar can be reliably tested, and whether the welding meets the requirements can be detected; the detection method is simple and easy to implement, and can implement full inspection to prevent the omission of unqualified products.

[0005] At present, there is still a lack of equipment that can facilitate the random sampling of some products for sampling inspection during the production process of solid-state batteries. The equipment can also be debugged to a force lower than the normal welding points for testing and non-destructive testing. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a solid-state battery welding firmness inspection device and method, which is convenient for randomly selecting some products for sampling inspection during the solid-state battery production process, and realizing non-destructive inspection by debugging the equipment to a force lower than the normal welding point.

[0007] The present invention adopts the following technical solutions to achieve the invention objectives:

[0008] A solid-state battery welding firmness inspection device and method, comprising a mounting plate, characterized in that: the mounting plate is fixedly connected to a T-plate, the T-plate is fixedly connected to a group of evenly distributed mounting columns, a group of the mounting columns are respectively fixedly connected to a circular plate, the circular plate is fixedly connected to symmetrical mounting short plates, the symmetrical mounting short plates are respectively fixedly connected to auxiliary electric push rods, the push rods of the symmetrical auxiliary electric push rods are respectively fixedly connected to alignment plates; the circular plate is fixedly connected to a circular cover, the circular cover is fixedly connected to a mounting cross bar, the mounting cross bar is fixedly connected to a connecting column, the connecting column is fixedly connected to a mounting block via a mounting circular plate, the mounting block is fixedly connected to a U-frame, the The U-frame is fixedly connected to the base plate; an I-plate is arranged inside the U-frame, the I-plate matches the U-frame, the base plate is rotatably connected to two groups of symmetrical straight-groove rods, the four corners of the I-plate are respectively fixedly connected to power round blocks, each of the power round blocks is respectively arranged in the groove of the corresponding straight-groove rod; the I-plate is fixedly connected to symmetrical pressure rods, the symmetrical pressure rods respectively pass through the base plate, the symmetrical pressure rods are respectively fixedly connected to the extrusion silicone pad, each of the straight-groove rods is respectively fixedly connected to the swing rod, each of the swing rods is respectively threadedly connected to a bolt, each of the bolts respectively passes through the mounting block, and each of the mounting blocks is respectively fixedly connected to the pulling silicone pad.

[0009] As a further limitation of the present technical solution, the U-frame is fixedly connected to the motor, the output shaft of the motor passes through the U-frame, the output shaft of the motor is fixedly connected to the driving bevel gear, the U-frame and the base plate are respectively connected to screws by bearings, the screws are threadedly connected to the I-plate, the screws are fixedly connected to the driven bevel gear, and the driven bevel gear meshes with the driving bevel gear.

[0010] As a further limitation of the present technical solution, the circular plate is fixedly connected to the upper motor, the output shaft of the upper motor passes through the circular plate, the output shaft of the upper motor is fixedly connected to the wedge-shaped round block, the round cover is fixedly connected to a group of springs, each of the springs is respectively fixedly connected to a hemisphere, each of the hemispheres respectively contacts the inclined surface of the wedge-shaped round block, each of the hemispheres is respectively fixedly connected to a through rod, each of the through rods respectively passes through the round cover, each of the springs is respectively looped around the corresponding through rod, and each of the through rods is respectively fixedly connected to an elliptical sphere.

[0011] As a further limitation of the present technical solution, the mounting plate is arranged on the upper side of the conveyor belt mechanism, and the conveyor belt of the conveyor belt mechanism is fixedly connected to the symmetrical reinforcement belt.

[0012] As a further limitation of the present technical solution, the bracket of the conveyor belt mechanism is fixedly connected to symmetrical hydraulic rods, the piston rods of the symmetrical hydraulic rods are respectively fixedly connected to limit U plates, and the limit U plates are fixedly connected to the limit plates.

[0013] As a further limitation of the present technical solution, the connecting column is made of rubber material.

[0014] A method for testing a solid-state battery welding firmness testing device comprises the following steps:

[0015] S1: Install the mounting plate on the ceiling of the factory building so that it is above the conveyor belt mechanism;

[0016] The positions of the pole lugs welded on different solid-state battery pole pieces are different. When using this device, it is necessary to debug it according to the specific product, and the corresponding position and size should be appropriate;

[0017] According to the position of the lug, loosen the bolts, adjust the position of the mounting block, and tighten the bolts;

[0018] S2: During the inspection, the conveyor mechanism transports the solid-state battery, controls the hydraulic rod to contract, and moves the limit U plate and the limit plate downward to match the solid-state battery, so that the limit U plate and the limit plate randomly clamp the solid-state battery to achieve the positioning of the solid-state battery;

[0019] S3: Control the motor to rotate, so that the extrusion silicone pad contacts the tab downward, and the lifting silicone pad swings to contact the lower side of the tab, so that the extrusion silicone pad and the lifting silicone pad reach a preset pressure value;

[0020] Pressure sensors are installed in the extrusion silicone pad and the lifting silicone pad respectively;

[0021] When the motor rotates, it drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear and the screw to rotate, the screw drives the I-shaped plate to move, the I-shaped plate drives the pressure rod and the extrusion silicone pad to move, the I-shaped plate drives the power round block to move along the groove of the straight groove rod, the power round block drives the slide groove rod to swing, the slide groove rod drives the swing rod, bolts, installation blocks and lifting silicone pad to swing;

[0022] S4: Control the auxiliary electric push rod to retract, so that the alignment plate is out of contact with the U frame, the connecting column is restored, the U frame is contacted with the elliptical ball which is at the bottom at this time, the U frame is slightly tilted, the extrusion silicone pad and the lifting silicone pad are deformed, and a tilting force is generated on the tab;

[0023] The connecting column can undergo elastic deformation;

[0024] The U frame tilts, causing the mounting block and mounting circular plate to tilt, causing the connecting column to slightly deform. The U frame drives the screw, I-shaped plate, pressure rod and mounting square to swing, causing the extruded silicone pad and the pulled silicone pad to swing and squeeze the tab;

[0025] S5: Control the upper motor to rotate, so that a group of ellipsoidal balls alternately contact the U frame, deform the extrusion silicone pad and the lifting silicone pad, and produce a force with a constantly changing tilt direction and magnitude on the pole ear, so as to realize multi-angle twisting detection. The ellipsoidal balls push the U frame in turn to achieve a certain degree of twisting, which is transmitted to the extrusion silicone pad and the lifting silicone pad at the bottom to achieve changes. During debugging, the motor should be controlled to rotate according to the pressure changes of the pressure sensors in the extrusion silicone pad and the lifting silicone pad, and the appropriate force should be adjusted to achieve appropriate twisting to prevent excessive force from exceeding the normal welding point.

[0026] When the upper motor rotates, it drives the wedge-shaped round block to rotate. Under the elastic action of the spring, the wedge-shaped round block drives the hemisphere to move back and forth, the hemisphere drives the penetrating rod to move back and forth, and the penetrating rod drives the elliptical ball to move back and forth.

[0027] As a further limitation of the technical solution, the device realizes multi-angle torsion detection by adopting a group of the elliptical balls to alternately contact the U-frame. Simple inspection equipment cannot realize multiple angles, and some welds bear different forces at different angles, so multi-angle inspection is more comprehensive.

[0028] As a further limitation of the present technical solution, by controlling the rotation of the motor, the extrusion silicone pad can be made to contact the pole ear downward, and the lifting silicone pad can be swung to contact the lower side of the pole ear, so that the pole ear can be stuck and clamped at the top and bottom.

[0029] As a further limitation of the present technical solution, by adopting the auxiliary electric push rod and the alignment plate, when the alignment plate contacts the U frame, the U frame and the ellipsoidal sphere are disengaged, so that the extrusion silicone pad and the pulling silicone pad swing to contact the lower side of the pole ear, so that the pole ear is just stuck and clamped at the top and bottom. After the alignment plate is disengaged from the U frame, a group of the ellipsoidal balls alternately contact the U frame to achieve multi-angle detection.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are:

[0031] 1. This device uses a motor, bevel gear meshing and screw drive to squeeze the silicone pad downward to contact the pole ear, pull the silicone pad to swing and contact the lower side of the pole ear, and clamp the pole ear just above and below. The pole ear is subjected to a certain force to achieve welding firmness inspection.

[0032] 2. This device adopts an auxiliary electric push rod and an alignment plate. When the alignment plate contacts the U frame, the U frame and the elliptical ball are out of contact, so that the extrusion silicone pad and the lifting silicone pad swing to contact the lower side of the pole ear, so that the upper and lower parts are just stuck and clamped. After the alignment plate is out of contact with the U frame, elastic deformation can occur using the connecting column, and a group of elliptical balls alternately contact the U frame to achieve multi-angle detection.

[0033] 3. This device uses wedge-shaped round blocks and springs to achieve a group of elliptical balls alternately contacting the U frame.

[0034] Realize multi-angle twisting detection. Simple inspection equipment cannot achieve multiple angles. Some welds bear different forces at different angles, so multi-angle inspection is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0036] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 .

[0037] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 .

[0038] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0039] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 4 .

[0040] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 5 .

[0041] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 6 .

[0042] Figure 8 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 7 .

[0043] Fig. 9 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0044] In the figure: 1. mounting plate, 2. T-plate, 3. mounting column, 4. conveyor belt mechanism, 5. reinforcing belt, 6. hydraulic rod, 7. limit U-plate, 8. limit plate, 9. round cover, 10. mounting short plate, 11. auxiliary electric push rod, 12. alignment plate, 13. round plate, 14. mounting cross bar, 15. connecting column, 16. upper motor, 17. wedge-shaped round block, 18. hemisphere, 19. spring, 20. through rod, 21. elliptical ball, 22. mounting round plate, 23. mounting block, 25. driven bevel gear, 26. U-frame, 27. screw, 28. I-plate, 29. bottom plate, 30. driving bevel gear, 31. motor, 32. straight groove rod, 33. swing rod, 34. pressure rod, 35. power round block, 36. extrusion silicone pad, 37. bolt, 38. mounting block, 39. lifting silicone pad. DETAILED DESCRIPTION

[0045] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0046] Embodiment 1: The present invention comprises a mounting plate 1, wherein the mounting plate 1 is fixedly connected to a T-plate 2, wherein the T-plate 2 is fixedly connected to a group of evenly distributed mounting columns 3, wherein a group of the mounting columns 3 are respectively fixedly connected to a circular plate 13, wherein the circular plate 13 is fixedly connected to symmetrical mounting short plates 10, wherein the symmetrical mounting short plates 10 are respectively fixedly connected to auxiliary electric push rods 11, wherein the push rods of the symmetrical auxiliary electric push rods 11 are respectively fixedly connected to an alignment plate 12; wherein the circular plate 13 is fixedly connected to a circular cover 9, wherein the circular cover 9 is fixedly connected to a mounting cross bar 14, wherein the mounting cross bar 14 is fixedly connected to a connecting column 15, wherein the connecting column 15 is fixedly connected to a mounting block 23 via a mounting circular plate 22, wherein the mounting block 23 is fixedly connected to a U-frame 26, wherein the U-frame 26 is fixedly connected to a bottom plate 29; wherein An I-shaped plate 28 is provided in the U-frame 26, and the I-shaped plate 28 matches the U-frame 26. The bottom plate 29 is rotatably connected to two groups of symmetrical straight groove rods 32. The four corners of the I-shaped plate 28 are respectively fixedly connected to power round blocks 35, and each of the power round blocks 35 is respectively arranged in the groove of the corresponding straight groove rod 32; the I-shaped plate 28 is fixedly connected to symmetrical pressure rods 34, and the symmetrical pressure rods 34 pass through the bottom plate 29 respectively, and the symmetrical pressure rods 34 are respectively fixedly connected to the extrusion silicone pad 36, and each of the straight groove rods 32 is respectively fixedly connected to the swing rod 33, and each of the swing rods 33 is respectively threadedly connected to the bolt 37, and each of the bolts 37 passes through the mounting block 38 respectively, and each of the mounting blocks 38 is respectively fixedly connected to the pulling silicone pad 39.

[0047] The U-frame 26 is fixedly connected to the motor 31, and the output shaft of the motor 31 passes through the U-frame 26. The output shaft of the motor 31 is fixedly connected to the driving bevel gear 30. The U-frame 26 and the base plate 29 are respectively connected to the screw 27 by bearings. The screw 27 is threadedly connected to the I-plate 28. The screw 27 is fixedly connected to the driven bevel gear 25, and the driven bevel gear 25 meshes with the driving bevel gear 30.

[0048] The mounting plate 1 is arranged on the upper side of a conveyor belt mechanism 4 , and a conveyor belt of the conveyor belt mechanism 4 is fixedly connected to a symmetrical reinforcement belt 5 .

[0049] The workflow of this embodiment is:

[0050] The mounting plate 1 is mounted on the ceiling of the factory building so that it is above the conveyor mechanism 4. The conveyor mechanism 4 transports the solid-state battery. When the solid-state battery is directly below the extruded silicone pad 36, the conveyor mechanism 4 is suspended.

[0051] The motor 31 is controlled to rotate. When the motor 31 rotates, the active bevel gear 30 is driven to rotate. The active bevel gear 30 drives the driven bevel gear 25 and the screw 27 to rotate. The screw 27 drives the I-shaped plate 28 to move. The I-shaped plate 28 drives the pressure rod 34 and the extrusion silicone pad 36 to move. The I-shaped plate 28 drives the power round block 35 to move along the groove of the straight groove rod 32. The power round block 35 drives the slide rod 32 to swing. The slide rod 32 drives the swing rod 34, the bolt 37, the installation block 38 and the lifting silicone pad 39 to swing; the extrusion silicone pad 36 contacts the tab downward, and the lifting silicone pad 39 swings to contact the lower side of the tab, so that the extrusion silicone pad 36 and the lifting silicone pad 39 reach the preset pressure value. Detection is achieved.

[0052] Embodiment 2: This embodiment is further elaborated on the basis of embodiment 1, the circular plate 13 is fixedly connected to the upper motor 16, the output shaft of the upper motor 16 passes through the circular plate 13, the output shaft of the upper motor 16 is fixedly connected to the wedge-shaped round block 17, the round cover 9 is fixedly connected to a group of springs 19, each of the springs 19 is respectively fixedly connected to a hemisphere 18, each of the hemispheres 18 respectively contacts the inclined surface of the wedge-shaped round block 17, each of the hemispheres 18 is respectively fixedly connected to a through rod 20, each of the through rods 20 respectively passes through the round cover 9, each of the springs 19 is respectively looped around the corresponding through rod 20, and each of the through rods 20 is respectively fixedly connected to an ellipsoidal ball 21.

[0053] The connecting column 15 is made of rubber material.

[0054] The workflow of this embodiment is:

[0055] The auxiliary electric push rod 11 is controlled to retract, so that the alignment plate 12 is out of contact with the U frame 26, the connecting column 15 is restored, and the U frame 26 contacts the elliptical ball 21 which is at the bottom at this time, so that the U frame 26 is slightly tilted, so that the extrusion silicone pad 36 and the lifting silicone pad 39 are deformed, and a tilting force is generated on the pole ear; the U frame 26 is tilted, so that the mounting block 23 and the mounting circular plate 22 are tilted, and the connecting column 15 is slightly deformed, and the U frame 26 drives the screw 27, the I-plate 28, the pressure rod 34 and the mounting block 38 to swing, and the extrusion silicone pad 36 and the lifting silicone pad 39 have a swinging trend to squeeze the pole ear.

[0056] The upper motor 16 is controlled to rotate. When the upper motor 16 rotates, the wedge-shaped round block 17 is driven to rotate. Under the elastic action of the spring 19, the wedge-shaped round block 17 drives the hemisphere 18 to move back and forth, the hemisphere 18 drives the through rod 20 to move back and forth, and the through rod 20 drives the elliptical ball 21 to move back and forth. A group of elliptical balls 21 are realized to contact the U frame 26 alternately, so that the extrusion silicone pad 36 and the lifting silicone pad 39 are deformed, and the direction and size of the tilting force on the pole ear are constantly changing, so as to realize multi-angle twisting detection. The elliptical ball 21 pushes the U frame 26 in turn to achieve a certain degree of twisting, which is transmitted to the extrusion silicone pad 36 and the lifting silicone pad 39 at the bottom to achieve changes. During debugging, the motor 31 should be controlled to rotate according to the pressure changes of the pressure sensors in the extrusion silicone pad 36 and the lifting silicone pad 39, and the appropriate force should be debugged to achieve appropriate twisting to prevent too much force from exceeding the normal welding point.

[0057] Embodiment 3: This embodiment is further elaborated on the basis of embodiment 1 or 2, wherein the bracket of the conveyor belt mechanism 4 is fixedly connected to the symmetrical hydraulic rod 6, and the piston rods of the symmetrical hydraulic rod 6 are respectively fixedly connected to the limit U plate 7, and the limit U plate 7 is fixedly connected to the limit plate 8.

[0058] The workflow of this embodiment is:

[0059] The conveyor belt mechanism 4 transports the solid-state battery and controls the hydraulic rod 6 to contract, so that the limit U plate 7 and the limit plate 8 move downward to match the solid-state battery, so that the limit U plate 7 and the limit plate 8 clamp the solid-state battery to achieve the positioning of the solid-state battery.

[0060] A method for testing a solid-state battery welding firmness testing device comprises the following steps:

[0061] S1: Install the mounting plate 1 on the ceiling of the factory building so that it is above the conveyor belt mechanism 4;

[0062] The positions of the pole lugs welded on different solid-state battery pole pieces are different. When using this device, it is necessary to debug it according to the specific product, and the corresponding position and size should be appropriate;

[0063] According to the position of the pole lug, loosen the bolt 37, adjust the position of the mounting block 38, and tighten the bolt 37;

[0064] S2: During the inspection, the conveyor mechanism 4 transports the solid-state battery, controls the hydraulic rod 6 to contract, and makes the limiting U plate 7 and the limiting plate 8 move downward to match the solid-state battery, so that the limiting U plate 7 and the limiting plate 8 randomly clamp the solid-state battery to achieve the positioning of the solid-state battery;

[0065] S3: Control the motor 31 to rotate, so that the extrusion silicone pad 36 contacts the tab downward, and the lifting silicone pad 39 swings to contact the lower side of the tab, so that the extrusion silicone pad 36 and the lifting silicone pad 39 reach a preset pressure value;

[0066] Pressure sensors are installed in the extrusion silicone pad 36 and the lifting silicone pad 39 respectively;

[0067] When the motor 31 rotates, it drives the active bevel gear 30 to rotate, the active bevel gear 30 drives the driven bevel gear 25 and the screw 27 to rotate, the screw 27 drives the I-shaped plate 28 to move, the I-shaped plate 28 drives the pressure rod 34 and the extrusion silicone pad 36 to move, the I-shaped plate 28 drives the power round block 35 to move along the groove of the straight groove rod 32, the power round block 35 drives the slide groove rod 32 to swing, the slide groove rod 32 drives the swing rod 34, the bolt 37, the installation block 38 and the lifting silicone pad 39 to swing;

[0068] S4: Control the auxiliary electric push rod 11 to retract, so that the alignment plate 12 is out of contact with the U frame 26, so that the connecting column 15 is restored, so that the U frame 26 contacts the elliptical ball 21 which is at the bottom at this time, so that the U frame 26 is slightly tilted, so that the extrusion silicone pad 36 and the lifting silicone pad 39 are deformed, and a tilting force is generated on the tab;

[0069] The connecting column 15 can undergo elastic deformation;

[0070] The U-frame 26 tilts, causing the mounting block 23 and the mounting circular plate 22 to tilt, causing the connecting column 15 to slightly deform, and the U-frame 26 drives the screw 27, the I-shaped plate 28, the pressure rod 34 and the mounting block 38 to swing, causing the extrusion silicone pad 36 and the lifting silicone pad 39 to swing and squeeze the tab;

[0071] S5: Control the upper motor 16 to rotate, so that a group of the ellipsoid balls 21 alternately contact the U frame 26, so that the extrusion silicone pad 36 and the lifting silicone pad 39 are deformed, and the direction and magnitude of the tilting force on the pole ear are constantly changing, so as to realize multi-angle twisting detection. The ellipsoid balls 21 push the U frame 26 in turn to achieve a certain degree of twisting, which is transmitted to the extrusion silicone pad 36 and the lifting silicone pad 39 at the bottom to achieve changes. During debugging, the motor 31 should be controlled to rotate according to the pressure changes in the pressure sensors in the extrusion silicone pad 36 and the lifting silicone pad 39, and the appropriate force should be adjusted to achieve appropriate twisting to prevent excessive force from exceeding the normal welding point.

[0072] When the upper motor 16 rotates, it drives the wedge-shaped round block 17 to rotate. Under the elastic action of the spring 19, the wedge-shaped round block 17 drives the hemisphere 18 to reciprocate, the hemisphere 18 drives the penetrating rod 20 to reciprocate, and the penetrating rod 20 drives the elliptical ball 21 to reciprocate.

[0073] The device realizes multi-angle torsion detection by using a group of elliptical balls 21 to contact the U frame 26 alternately. Simple inspection equipment cannot realize multiple angles. Some welding points bear different forces at different angles, so multi-angle inspection is more comprehensive.

[0074] By controlling the motor 31 to rotate, the extrusion silicone pad 36 can be brought into contact with the tab downward, and the lifting silicone pad 39 can be swung to contact the lower side of the tab, so that the tab is just clamped at the top and the bottom.

[0075] By adopting the auxiliary electric push rod 11 and the alignment plate 12, when the alignment plate 12 contacts the U frame 26, the U frame 26 is disengaged from the ellipsoidal ball 21, so that the extrusion silicone pad 36 and the lifting silicone pad 39 swing to contact the lower side of the pole ear, so that the pole ear is just stuck and clamped at the top and bottom. After the alignment plate 12 is disengaged from the U frame 26, a group of the ellipsoidal balls 21 alternately contact the U frame 26 to achieve multi-angle detection.

[0076] The device uses a motor 31, bevel gear meshing and screw 27 transmission to squeeze the silicone pad 36 downward to contact the pole ear, pull the silicone pad 39 to swing and contact the lower side of the pole ear, and just clamp the pole ear from the top and bottom. The pole ear is subjected to a certain force to achieve welding firmness inspection.

[0077] The device adopts an auxiliary electric push rod 11 and an alignment plate 12. When the alignment plate 12 contacts the U frame 26, the U frame 26 and the ellipsoidal ball 21 are separated from each other, so that the extrusion silicone pad 36 and the lifting silicone pad 39 are swung to contact the lower side of the pole ear, so that the pole ear is just stuck and clamped at the top and bottom. After the alignment plate 12 and the U frame 26 are separated from each other, the connecting column 15 can be elastically deformed, and a group of ellipsoidal balls 21 alternately contact the U frame 26 to achieve multi-angle detection.

[0078] The device uses a wedge-shaped round block 17 and a spring 19 to achieve a group of elliptical balls 21 alternately contacting the U frame 26. Multi-angle torsion detection is achieved. Simple inspection equipment cannot achieve multiple angles, and some welding points bear different forces at different angles. Multi-angle inspection is more comprehensive.

[0079] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A solid-state battery welding firmness inspection device, comprising a mounting plate (1), characterized in that: The mounting plate (1) is fixedly connected to a T-plate (2), the T-plate (2) is fixedly connected to a group of evenly distributed mounting columns (3), a group of the mounting columns (3) are respectively fixedly connected to a circular plate (13), the circular plate (13) is fixedly connected to symmetrical mounting short plates (10), the symmetrical mounting short plates (10) are respectively fixedly connected to auxiliary electric push rods (11), and the push rods of the symmetrical auxiliary electric push rods (11) are respectively fixedly connected to an alignment plate (12); The circular plate (13) is fixedly connected to the circular cover (9), the circular cover (9) is fixedly connected to the mounting cross bar (14), the mounting cross bar (14) is fixedly connected to the connecting column (15), the connecting column (15) is fixedly connected to the mounting block (23) through the mounting circular plate (22), the mounting block (23) is fixedly connected to the U frame (26), and the U frame (26) is fixedly connected to the bottom plate (29); An I-shaped plate (28) is arranged inside the U-frame (26), the I-shaped plate (28) matches the U-frame (26), the bottom plate (29) is rotatably connected to two groups of symmetrical straight groove rods (32), the four corners of the I-shaped plate (28) are respectively fixedly connected to power round blocks (35), and each of the power round blocks (35) is respectively arranged in the groove of the corresponding straight groove rod (32); The I-shaped plate (28) is fixedly connected to symmetrical pressure rods (34), the symmetrical pressure rods (34) respectively pass through the bottom plate (29), the symmetrical pressure rods (34) are respectively fixedly connected to the extrusion silicone pad (36), each of the straight groove rods (32) is respectively fixedly connected to the swing rod (33), each of the swing rods (33) is respectively threadedly connected to the bolt (37), each of the bolts (37) respectively passes through the installation block (38), and each of the installation blocks (38) is respectively fixedly connected to the lifting silicone pad (39).

2. The solid-state battery welding firmness inspection equipment according to claim 1 is characterized in that: The U-frame (26) is fixedly connected to a motor (31), an output shaft of the motor (31) passes through the U-frame (26), the output shaft of the motor (31) is fixedly connected to a driving bevel gear (30), the U-frame (26) and the bottom plate (29) are respectively bearing-connected to a screw rod (27), the screw rod (27) is threadedly connected to the I-plate (28), the screw rod (27) is fixedly connected to a driven bevel gear (25), and the driven bevel gear (25) meshes with the driving bevel gear (30).

3. The solid-state battery welding firmness inspection equipment according to claim 2 is characterized in that: The circular plate (13) is fixedly connected to an upper motor (16), an output shaft of the upper motor (16) passes through the circular plate (13), the output shaft of the upper motor (16) is fixedly connected to a wedge-shaped round block (17), the circular cover (9) is fixedly connected to a group of springs (19), each of the springs (19) is respectively fixedly connected to a hemisphere (18), each of the hemispheres (18) contacts the inclined surface of the wedge-shaped round block (17), each of the hemispheres (18) is respectively fixedly connected to a penetration rod (20), each of the penetration rods (20) passes through the circular cover (9), each of the springs (19) is respectively sleeved around a corresponding penetration rod (20), and each of the penetration rods (20) is respectively fixedly connected to an elliptical ball (21).

4. The solid-state battery welding firmness inspection device according to claim 3 is characterized in that: The mounting plate (1) is arranged on the upper side of a conveyor belt mechanism (4), and the conveyor belt of the conveyor belt mechanism (4) is fixedly connected to a symmetrical reinforcement belt (5).

5. The solid-state battery welding firmness inspection device according to claim 4 is characterized in that: The bracket of the conveyor belt mechanism (4) is fixedly connected to symmetrical hydraulic rods (6), the piston rods of the symmetrical hydraulic rods (6) are respectively fixedly connected to limit U plates (7), and the limit U plates (7) are fixedly connected to limit plates (8).

6. The solid-state battery welding firmness inspection device according to claim 1 is characterized in that: The connecting column (15) is made of rubber material.

7. The inspection method of the solid-state battery welding firmness inspection equipment according to claim 6 is characterized in that: The following steps are involved: S1: Install the mounting plate (1) on the ceiling of the factory building so that it is above the conveyor belt mechanism (4); S2: During the inspection, the conveyor mechanism (4) transports the solid-state battery, controls the hydraulic rod (6) to contract, and causes the limiting U plate (7) and the limiting plate (8) to move downward to match the solid-state battery, so that the limiting U plate (7) and the limiting plate (8) randomly clamp the solid-state battery, thereby achieving the positioning of the solid-state battery; S3: Controlling the motor (31) to rotate, so that the extrusion silicone pad (36) contacts the tab downward, and the lifting silicone pad (39) swings to contact the lower side of the tab, so that the extrusion silicone pad (36) and the lifting silicone pad (39) reach a preset pressure value; S4: Control the auxiliary electric push rod (11) to retract, so that the alignment plate (12) is out of contact with the U frame (26), so that the connecting column (15) is restored, so that the U frame (26) contacts the elliptical ball (21) which is at the bottom at this time, so that the U frame (26) is slightly tilted, so that the extrusion silicone pad (36) and the lifting silicone pad (39) are deformed, and a tilting force is generated on the tab; S5: Control the upper motor (16) to rotate, so that a group of the elliptical balls (21) alternately contact the U frame (26), so that the extrusion silicone pad (36) and the lifting silicone pad (39) are deformed, and a force with a tilting direction and magnitude that continuously changes is generated on the pole ear, thereby realizing multi-angle torsion detection.

8. The inspection method according to claim 7, characterized in that: The device realizes multi-angle twisting detection by using a group of elliptical balls (21) to contact the U frame (26) alternately. Simple inspection equipment cannot realize multiple angles. Some welding points bear different forces at different angles, so multi-angle inspection is more comprehensive.

9. The inspection method according to claim 7, characterized in that: By controlling the motor (31) to rotate, the extrusion silicone pad (36) is brought into contact with the tab downwards, and the lifting silicone pad (39) is swung to contact the lower side of the tab, so that the tab is just caught and clamped at the top and bottom.

10. The inspection method according to claim 7, characterized in that: By using the auxiliary electric push rod (11) and the alignment plate (12), when the alignment plate (12) contacts the U frame (26), the U frame (26) and the ellipsoidal ball (21) are separated from each other, so that the extrusion silicone pad (36) and the lifting silicone pad (39) swing to contact the lower side of the pole ear, so that the pole ear is just stuck and clamped at the top and bottom. After the alignment plate (12) and the U frame (26) are separated from each other, a group of the ellipsoidal balls (21) alternately contact the U frame (26) to achieve multi-angle detection.

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