Battery sealing nail pre-welding nail warping detection device and battery sealing nail pre-welding nail warping detection method

Abstract

The invention discloses a battery sealing nail pre-welding warped nail detection device and method, and the method comprises the following steps: 1, if a warped nail does not coincide with a positioning line, pushing a battery to move on a detection platform through an extrusion plate until the warped nail needing to be detected is moved to coincide with the positioning line; 2, driving the detection table and the battery to move upwards together through the extension of the telescopic end of the hydraulic telescopic device until the battery is moved to a proper position; 3, a driving motor is started, so that the warped nails at the upper end of the battery make contact with a cleaning disc, and the warped nails are cleaned through rotation of the cleaning disc; and 4, when the position of the battery needs to be adjusted and different warped nails need to be detected, a second servo motor drives a second lead screw to push an extrusion plate to move until the to-be-detected warped nails on the battery are pushed to coincide with the position of the positioning line, and the method solves the problems that the batteries of different sizes are difficult to fix by a fixing mechanism, and the detection accuracy is high. And the position adjustment of the detection table is not flexible enough.

Description

Technical Field

[0001] The present invention relates to the technical field of battery lift-off detection, and in particular to a battery sealing nail lift-off detection device and method before welding. Background Art

[0002] Battery sealing nail pre-welding detection is a crucial quality inspection link in the battery manufacturing process. In the battery manufacturing process, the welding of sealing nails is a key step to achieve complete isolation of the battery interior from the external environment. However, before welding, if the sealing nails are lifted, it will lead to poor welding, which will affect the performance and safety of the battery. During the inspection, first ensure that the inspection equipment and software are operating normally. The sealing nails are pre-processed, and then the sealing nails are imaged using machine vision technology or 3D line laser scanning technology. The image is analyzed using image processing algorithms or deep learning models to identify defect features such as lifted nails.

[0003] For example, the Chinese patent "A device for detecting the welding quality of battery cell sealing nails" with announcement number CN219715259U includes a bracket, a servo motion assembly, a motion controller, a camera and a ranging assembly; the servo motion assembly includes a driving member and a transmission mechanism, the driving member is fixedly connected to the bracket, the driving member is fixedly connected to the input part of the transmission mechanism, the ranging assembly and the camera are respectively fixedly connected to the output part of the transmission mechanism, wherein the input part and the output part are movably connected.

[0004] Although the above-mentioned prior art can realize the detection of lifted nails, in actual use, on the one hand, it is difficult for the fixing mechanism to fix batteries of different sizes. Usually, the lifted nails are assembled with the battery and then the detection operation is carried out, which makes it difficult for the fixing mechanism to adjust to a suitable position to fix batteries of different sizes, thereby reducing the adaptability of the fixing mechanism. On the other hand, the position adjustment of the detection table is not flexible enough. Usually, the detection table can move the battery to the detection area as a battery moving mechanism, which makes it difficult to adjust the detection table to a position suitable for subsequent operations, thereby reducing the flexibility of the detection table. Therefore, it does not meet the existing needs. In this regard, we propose a battery sealing nail lifting detection device and method before welding. Summary of the invention

[0005] The purpose of the present invention is to provide a battery sealing nail pre-welding nail detection device and method, so as to solve the problems that the fixing mechanism proposed in the above background technology is difficult to fix batteries of different sizes and the position adjustment of the detection table is not flexible enough.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a battery sealing nail pre-welding nail detection device, comprising a detection platform, a base is arranged below the detection platform, and a frame is fixedly arranged at the front and rear ends of the lower end of the base, and two second slide grooves are arranged at the middle position inside the base, the upper end of the second slide groove is an open structure, and the second slide groove is symmetrically arranged, and a second screw rod is arranged inside the second slide groove, and the front and rear ends of the second screw rod are rotatably connected to the inner wall of the second slide groove, and an extrusion plate is sleeved on the outside of the second screw rod, and the extrusion plate and the second slide groove are slidably limited, and the upper end of the extrusion plate extends to the top of the detection platform, and a second servo motor is fixedly arranged at the middle position of the front and rear ends outside the detection platform, and the output shaft of the second servo motor extends to the inside of the second slide groove and is fixedly connected to the second screw rod, and a positioning line is arranged at the center position of the upper end of the detection platform.

[0007] Preferably, a movable cavity is provided at the central position inside the base, and the movable cavity is a through-type structure, and a first slide groove is provided inside the base at the front and rear ends of the movable cavity, and the first slide groove is communicated with the movable cavity, and a first screw rod is provided inside the first slide groove, and both sides of the first screw rod are rotatably connected to the inner wall of the first slide groove, and a connecting seat is provided on the outer sleeve of the first screw rod, and the connecting seat and the first slide groove are limited in sliding, and one end of the connecting seat extends into the movable cavity, and a first servo motor is fixedly provided at the front and rear ends of one side of the base, and the output shaft of the first servo motor extends into the first slide groove and is fixedly connected to the first screw rod.

[0008] Preferably, a moving seat is fixedly arranged between the connecting seats, the moving seat and the moving cavity are slidably limited, two hydraulic telescopic devices are fixedly arranged on the upper end of the moving seat, and the upper ends of the telescopic ends of the hydraulic telescopic devices are fixedly connected to the detection platform.

[0009] Preferably, fixed seats are fixedly provided at the four corners of the upper end of the testing platform, a threaded rod is provided on one side of the fixed seat close to the outside of the testing platform, the threaded rod passes through and extends to the other side of the fixed seat, and a rubber pad is fixedly provided on one side of the threaded rod close to the center of the testing platform.

[0010] Preferably, the front and rear ends of the base at the middle position outside are fixedly provided with a second mounting seat, the front and rear ends of the base located on one side of the second mounting seat are fixedly provided with a first mounting seat, and the first and second mounting seats are internally provided with slots, which are through-type structures.

[0011] Preferably, a second mounting frame is arranged inside the slot on the second mounting seat, and the upper end of the second mounting frame extends above the base, and a first mounting frame is arranged inside the slot on the first mounting seat, and the upper end of the first mounting frame extends above the base.

[0012] Preferably, a driving disk is fixedly provided at the lower end of the second mounting frame, a driving motor is fixedly provided inside the driving disk, an output shaft of the driving motor extends to the lower end of the driving disk, and a cleaning disk is fixedly provided at the lower end of the output shaft of the driving motor.

[0013] Preferably, the first mounting seat, the second mounting seat and the first mounting frame, the second mounting frame are all provided with a first threaded hole inside, the base is located on one side of the slot and is provided with a second threaded hole inside, the second threaded hole is connected to the slot, and the second threaded hole corresponds to the position of the first threaded hole, the first mounting seat and the second mounting seat are both provided with bolts outside, the bolts enter the second threaded holes through the first threaded holes, and a visual detection component is fixedly provided at the lower end of the first mounting frame.

[0014] A method for detecting battery sealing nails before welding, comprising the following steps:

[0015] Step 1: Before performing the pin lift detection, first insert the pin into the hole of the battery, and then place the battery on the detection table. At this time, the second servo motor is synchronously turned on, so that the output shaft of the second servo motor drives the second screw rod to rotate, and the extrusion plate is driven to move in the second slide groove through the thread on the outside of the second screw rod, until the front and rear end extrusion plates are in contact with the side wall of the battery. At this time, the operator observes whether the position of the pin lift coincides with the positioning line. If the position of the pin lift does not coincide with the positioning line, the second servo motor is turned on again, so that the second servo motor drives the extrusion plate to move through the second screw rod, and the battery is pushed to move on the detection table through the extrusion plate until the pin to be detected is moved to coincide with the positioning line. At this time, the operator rotates the threaded rod, so that the threaded rod moves toward the center of the detection table inside the fixing seat through the external thread, until the rubber pad on the threaded rod contacts the side wall of the battery and causes extrusion;

[0016] Step 2: When performing the nail lifting detection, first turn on the first servo motor, so that the output shaft of the first servo motor drives the first screw to rotate, and the connecting seat is driven to move in the first slide groove through the thread on the outside of the first screw, and the moving seat fixedly connected to the connecting seat slides in the moving cavity, and the moving seat drives the detection platform and the battery to move toward the direction of the visual detection component, and the position of the detection platform is adjusted according to the height of the battery. At this time, the two hydraulic telescopic devices are synchronously turned on to extend the telescopic ends of the hydraulic telescopic devices, and the extension of the telescopic ends of the hydraulic telescopic devices drives the detection platform and the battery to move upward until the battery is moved to a suitable position;

[0017] Step 3: When performing the lift nail detection, turn on the drive motor so that the output shaft of the drive motor drives the cleaning disk to rotate, and keep the moving base in a moving state until the battery is moved to the lower end of the cleaning disk. At this time, the lift nail on the upper end of the battery contacts the cleaning disk, and the lift nail is cleaned by the rotation of the cleaning disk;

[0018] Step 4: When performing lift pin detection, keep the moving seat moving until the inspection platform is moved to directly below the visual inspection component. At this time, the lift pin on the battery is within the range of the visual inspection component, and the lift pin is inspected. When the battery position needs to be adjusted and different lift pins need to be inspected, the operator rotates the threaded rod again to drive the rubber pad to move until the rubber pad is separated from the battery. At this time, the first servo motor is energized in reverse to drive the inspection platform to reciprocate in the moving cavity through the first servo motor and the first screw rod. At this time, turn on the second servo motor to drive the second screw rod to push the extrusion plate to move until the lift pin to be inspected on the battery is pushed to coincide with the positioning line. At this time, the remaining lift pins are inspected.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention can fix sizes of different sizes through the extrusion plate and the first screw. Before performing the lift pin detection, the lift pin is first inserted into the hole of the battery, and then the battery is placed on the detection table. At this time, the second servo motor is synchronously turned on, so that the output shaft of the second servo motor drives the second screw to rotate, and the extrusion plate is driven to move in the second slide groove through the thread on the outside of the second screw until the front and rear end extrusion plates are in contact with the side wall of the battery. At this time, the operator observes whether the position of the lift pin coincides with the positioning line. If the position of the lift pin does not coincide with the positioning line, the second servo motor is turned on again, so that the second servo motor drives the extrusion plate to move through the second screw, and the battery is pushed to move on the detection table through the extrusion plate until the lift pin to be detected is moved to coincide with the positioning line. At this time, the operator rotates the threaded rod, so that the threaded rod moves toward the center of the detection table inside the fixing seat through the external thread until the rubber pad on the threaded rod contacts the side wall of the battery and causes extrusion, thereby improving the adaptability of the fixing mechanism.

[0021] (2) The present invention can adjust the position of the test platform through the hydraulic telescopic device and the cleaning disk. The position of the test platform is adjusted according to the height of the battery. At this time, the two hydraulic telescopic devices are synchronously turned on to extend the telescopic ends of the hydraulic telescopic devices. The extension of the telescopic ends of the hydraulic telescopic devices drives the test platform and the battery to move upward until the battery is moved to a suitable position. When performing a nail lift detection, the drive motor is turned on so that the output shaft of the drive motor drives the cleaning disk to rotate, and the movable seat is kept in a moving state until the battery is moved to the lower end of the cleaning disk. At this time, the nail lift at the upper end of the battery contacts the cleaning disk, and the nail lift is cleaned by the rotation of the cleaning disk, thereby improving the use experience of the detection device.

[0022] (3) The present invention can detect multiple lifted nails by providing a first servo motor and a first screw rod. When performing lifted nail detection, the first servo motor is first turned on, so that the output shaft of the first servo motor drives the first screw rod to rotate, and the connecting seat is driven to move in the first slide groove through the thread on the outside of the first screw rod. At the same time, the moving seat fixedly connected to the connecting seat slides in the moving cavity, and the moving seat drives the detection platform and the battery to move toward the direction of the visual detection component until the detection platform is moved to the bottom of the visual detection component. At this time, the lifted nail on the battery is within the range of the visual detection component, and the lifting nail on the battery is detected. The lift pins are detected. When it is necessary to adjust the battery position and detect different lift pins, the operator rotates the threaded rod again to drive the rubber pad to move through the threaded rod until the rubber pad is separated from the battery. At this time, the first servo motor is energized in reverse, and the detection platform is driven to reciprocate in the moving cavity by the first servo motor and the first screw rod. At this time, the second servo motor is turned on, so that the second servo motor drives the second screw rod to push the extrusion plate to move until the lift pin to be detected on the battery is pushed to coincide with the positioning line position. At this time, the remaining lift pins are detected, thereby improving the convenience of lift pin detection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 It is a front view of the internal structure of the present invention;

[0025] Figure 3 It is a side view of the internal structure of the present invention;

[0026] Figure 4 A three-dimensional diagram of the battery clamping mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 2 A partial enlarged view of the middle area.

[0028] In the figure: 1. frame; 2. base; 3. moving cavity; 4. first slide groove; 5. first screw rod; 6. first servo motor; 7. moving seat; 8. hydraulic telescopic device; 9. detection table; 10. second servo motor; 11. fixed seat; 12. threaded rod; 13. rubber pad; 14. second slide groove; 15. second screw rod; 16. extrusion plate; 17. first mounting seat; 18. second mounting seat; 19. first mounting frame; 20. second mounting frame; 21. slot; 22. bolt; 23. drive disk; 24. cleaning disk; 25. visual inspection component; 26. drive motor; 28. connecting seat; 29. ​​first threaded hole; 30. second threaded hole; 31. positioning line. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figure 1 - Figure 5 , an embodiment of the present invention provides: a method for detecting battery sealing nails before welding, comprising the following steps:

[0031] Step 1: Before performing the pin lift detection, first insert the pin into the hole of the battery, and then place the battery on the detection table 9. At this time, the second servo motor 10 is synchronously turned on, so that the output shaft of the second servo motor 10 drives the second screw rod 15 to rotate, and the extrusion plate 16 is driven to move in the second slide groove 14 through the external thread of the second screw rod 15, until the front and rear end extrusion plates 16 are in contact with the side wall of the battery. At this time, the operator observes whether the position of the pin lift coincides with the positioning line 31. If the position of the pin lift does not coincide with the positioning line 31, the second servo motor 10 is turned on again at this time, so that the second servo motor 10 drives the extrusion plate 16 to move through the second screw rod 15, and the battery is pushed to move on the detection table 9 through the extrusion plate 16 until the pin to be detected is moved to coincide with the positioning line 31. At this time, the operator rotates the threaded rod 12, so that the threaded rod 12 moves toward the center of the detection table 9 inside the fixing seat 11 through the external thread, until the rubber pad 13 on the threaded rod 12 contacts the side wall of the battery and causes extrusion;

[0032] Step 2: When performing the nail lifting detection, first turn on the first servo motor 6, so that the output shaft of the first servo motor 6 drives the first screw rod 5 to rotate, and the connecting seat 28 is driven to move in the first slide groove 4 through the thread on the outside of the first screw rod 5. At the same time, the moving seat 7 fixedly connected to the connecting seat 28 slides in the moving cavity 3, and the detection platform 9 is driven by the moving seat 7 to move together with the battery toward the direction of the visual detection component 25. The position of the detection platform 9 is adjusted according to the height of the battery. At this time, the two hydraulic telescopic devices 8 are synchronously turned on to extend the telescopic end of the hydraulic telescopic device 8. The extension of the telescopic end of the hydraulic telescopic device 8 drives the detection platform 9 to move upward together with the battery until the battery is moved to a suitable position;

[0033] Step 3: When performing the nail lifting detection, the driving motor 26 is turned on, so that the output shaft of the driving motor 26 drives the cleaning disk 24 to rotate, and the moving seat 7 is kept in a moving state until the battery is moved to the lower end of the cleaning disk 24. At this time, the nail lifting at the upper end of the battery contacts the cleaning disk 24, and the nail lifting is cleaned by the rotation of the cleaning disk 24;

[0034] Step 4: When performing the pin lift detection, the movable seat 7 is kept moving until the detection platform 9 is moved to the bottom of the visual detection component 25. At this time, the pin lift on the battery is within the range of the visual detection component 25, and the pin lift is detected. When it is necessary to adjust the battery position and detect different pin lifts, the operator rotates the threaded rod 12 again, and drives the rubber pad 13 to move through the threaded rod 12 until the rubber pad 13 is separated from the battery. At this time, the first servo motor 6 is reversely energized, and the detection platform 9 is driven to reciprocate in the movable cavity 3 through the first servo motor 6 and the first screw rod 5. At this time, the second servo motor 10 is turned on, so that the second servo motor 10 drives the second screw rod 15 to push the extrusion plate 16 to move, until the pin lift to be detected on the battery is pushed to coincide with the positioning line 31, and then the remaining pin lifts are detected;

[0035] Among them, the base 2 is arranged below the detection table 9, and the front and rear ends of the lower end of the base 2 are fixedly provided with a frame 1, and two second slide grooves 14 are arranged at the middle position inside the base 2, and the upper ends of the second slide grooves 14 are open structures, and the second slide grooves 14 are symmetrically arranged, and a second screw rod 15 is arranged inside the second slide groove 14, and the front and rear ends of the second screw rod 15 are rotatably connected to the inner wall of the second slide groove 14, and an extrusion plate 16 is sleeved on the outside of the second screw rod 15, and the extrusion plate 16 is limited by sliding with the second slide groove 14, and the upper end of the extrusion plate 16 extends to the top of the detection table 9.

[0036] See also Figure 1 - Figure 5 A fixing seat 11 is fixedly provided at the four corners of the upper end of the testing table 9, a threaded rod 12 is provided on one side of the fixing seat 11 close to the outside of the testing table 9, the threaded rod 12 penetrates and extends to the other side of the fixing seat 11, a rubber pad 13 is fixedly provided on one side of the threaded rod 12 close to the center of the testing table 9, a second mounting frame 20 is provided inside the slot 21 on the second mounting seat 18, the upper end of the second mounting frame 20 extends to above the base 2, a first mounting frame 19 is provided inside the slot 21 on the first mounting seat 17, the upper end of the first mounting frame 19 extends to above the base 2.

[0037] See also Figure 1 , Figure 2 and Figure 3A second servo motor 10 is fixedly arranged at the middle position of the front and rear ends of the outside of the detection platform 9, and the output shaft of the second servo motor 10 extends to the inside of the second slide groove 14 and is fixedly connected to the second screw rod 15. A positioning line 31 is arranged at the center position of the upper end of the detection platform 9, and a moving cavity 3 is arranged at the center position inside the base 2. The moving cavity 3 is a through-type structure, and the base 2 is provided with a first slide groove 4 inside the front and rear ends of the moving cavity 3. The first slide groove 4 is communicated with the moving cavity 3, and a first screw rod 5 is arranged inside the first slide groove 4. Both sides of the first screw rod 5 are rotatably connected to the inner wall of the first slide groove 4, and a connecting seat 28 is arranged on the outside of the first screw rod 5. The connecting seat 28 is limited by the sliding of the first slide groove 4, and one end of the connecting seat 28 extends into the moving cavity 3. A first servo motor 6 is fixedly arranged at the front and rear ends of one side of the base 2, and the output shaft of the first servo motor 6 extends to the inside of the first slide groove 4 and is fixedly connected to the first screw rod 5, so as to facilitate the fixing of batteries of different sizes through the extrusion plate 16 and the threaded rod 12.

[0038] See also Figure 1 and Figure 2 A moving seat 7 is fixedly arranged between the connecting seats 28, and the moving seat 7 and the moving cavity 3 are limited by sliding. Two hydraulic telescopic devices 8 are fixedly arranged on the upper end of the moving seat 7, and the upper ends of the telescopic ends of the hydraulic telescopic devices 8 are fixedly connected to the detection platform 9. A driving disk 23 is fixedly arranged at the lower end of the second mounting frame 20, and a driving motor 26 is fixedly arranged inside the driving disk 23. The output shaft of the driving motor 26 extends to the lower end of the driving disk 23, and a cleaning disk 24 is fixedly arranged at the lower end of the output shaft of the driving motor 26. A visual detection component 25 is fixedly arranged at the lower end of the first mounting frame 19, which is convenient for adjusting the height of the detection platform 9 through the hydraulic telescopic device 8.

[0039] See also Figure 1 , Figure 3 and Figure 4 A second mounting seat 18 is fixedly provided at the front and rear ends of the middle position of the outside of the base 2, and a first mounting seat 17 is fixedly provided at the front and rear ends of the base 2 located on one side of the second mounting seat 18. A slot 21 is provided inside the first mounting seat 17 and the second mounting seat 18, and the slot 21 is a through-type structure. A first threaded hole 29 is provided inside the first mounting seat 17, the second mounting seat 18, the first mounting frame 19, and the second mounting frame 20. A second threaded hole 30 is provided inside the base 2 located on one side of the slot 21, and the second threaded hole 30 is connected to the slot 21, and the position of the second threaded hole 30 corresponds to the first threaded hole 29. Bolts 22 are provided on the outside of the first mounting seat 17 and the second mounting seat 18, and the bolts 22 enter the second threaded hole 30 through the first threaded hole 29, so that the first mounting frame 19 and the second mounting frame 20 can be quickly disassembled and assembled through the bolts 22.

[0040] Working principle: When in use, first insert the pin into the hole of the battery, and then place the battery on the testing table 9. At this time, the second servo motor 10 is synchronously turned on, so that the output shaft of the second servo motor 10 drives the second screw rod 15 to rotate, and the extrusion plate 16 is driven to move in the second slide groove 14 through the thread on the outside of the second screw rod 15, until the front and rear end extrusion plates 16 are in contact with the side wall of the battery. At this time, the operator observes whether the position of the pin coincides with the positioning line 31. If the position of the pin does not coincide with the positioning line 31, the second servo motor 10 is turned on again, so that the second servo motor 10 drives the extrusion plate 16 to move through the second screw rod 15, and the battery is pushed on the testing table through the extrusion plate 16. 9 until the pin to be tested is moved to coincide with the positioning line 31. At this time, the operator rotates the threaded rod 12 so that the threaded rod 12 moves toward the center of the test platform 9 inside the fixing seat 11 through the external thread until the rubber pad 13 on the threaded rod 12 contacts and squeezes the side wall of the battery. The position of the test platform 9 is then adjusted according to the height of the battery. At this time, the two hydraulic telescopic devices 8 are simultaneously turned on to extend the telescopic ends of the hydraulic telescopic devices 8. The extension of the telescopic ends of the hydraulic telescopic devices 8 drives the test platform 9 to move upward together with the battery until the battery is moved to a suitable position. When performing a pin test, the drive motor 26 is turned on to make the output of the drive motor 26 The output shaft drives the cleaning disc 24 to rotate, while keeping the movable seat 7 in a moving state, until the battery is moved to the lower end of the cleaning disc 24. At this time, the pins on the upper end of the battery are in contact with the cleaning disc 24, and the pins are cleaned by the rotation of the cleaning disc 24. The first servo motor 6 is turned on, so that the output shaft of the first servo motor 6 drives the first screw rod 5 to rotate, and the connecting seat 28 is driven to move in the first slide groove 4 through the thread on the outside of the first screw rod 5. At the same time, the movable seat 7 fixedly connected to the connecting seat 28 slides in the movable cavity 3, and the detection platform 9 is driven by the moving seat 7 to move together with the battery toward the direction of the visual detection component 25, until the detection platform 9 is moved to the bottom of the visual detection component 25. At this time The pins on the battery are within the range of the visual inspection component 25, and the pins are inspected. When the battery position needs to be adjusted and different pins need to be inspected, the operator rotates the threaded rod 12 again to drive the rubber pad 13 to move through the threaded rod 12 until the rubber pad 13 is separated from the battery. At this time, the first servo motor 6 is energized in reverse, and the inspection table 9 is driven to reciprocate in the movable cavity 3 through the first servo motor 6 and the first screw rod 5. At this time, the second servo motor 10 is turned on, so that the second servo motor 10 drives the second screw rod 15 to push the extrusion plate 16 to move until the pin to be inspected on the battery is pushed to coincide with the positioning line 31. At this time, the remaining pins are inspected.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A battery sealing nail pre-welding nail detection device, comprising a detection table (9), characterized in that: A base (2) is arranged below the detection platform (9), and a frame (1) is fixedly arranged at the front and rear ends of the lower end of the base (2), and two second slide grooves (14) are arranged at the middle position inside the base (2), and the upper ends of the second slide grooves (14) are open structures, and the second slide grooves (14) are symmetrically arranged, and a second screw rod (15) is arranged inside the second slide groove (14), and the front and rear ends of the second screw rod (15) are rotatably connected to the inner wall of the second slide groove (14), and the second screw rod (15) is rotatably connected to the inner wall of the second slide groove (14). 5) is provided with an extrusion plate (16) in a sleeve connection on the outside, the extrusion plate (16) and the second slide groove (14) are slidably limited, and the upper end of the extrusion plate (16) extends to the top of the detection platform (9), and the second servo motor (10) is fixedly provided at the middle position of the front and rear ends of the outside of the detection platform (9), the output shaft of the second servo motor (10) extends to the inside of the second slide groove (14) and is fixedly connected to the second screw rod (15), and a positioning line (31) is provided at the center position of the upper end of the detection platform (9).

2. A battery sealing nail pre-welding nail detection device according to claim 1, characterized in that: A movable cavity (3) is arranged at the center position inside the base (2), and the movable cavity (3) is of a through-type structure. A first slide groove (4) is arranged inside the base (2) at the front and rear ends of the movable cavity (3), and the first slide groove (4) is communicated with the movable cavity (3). A first screw rod (5) is arranged inside the first slide groove (4), and both sides of the first screw rod (5) are rotatably connected to the inner wall of the first slide groove (4). A connecting seat (28) is arranged on the outside of the first screw rod (5), and the connecting seat (28) and the first slide groove (4) are slidably limited, and one end of the connecting seat (28) extends into the movable cavity (3). A first servo motor (6) is fixedly arranged at the front and rear ends of one side of the base (2), and the output shaft of the first servo motor (6) extends into the first slide groove (4) and is fixedly connected to the first screw rod (5).

3. A battery sealing nail pre-welding nail detection device according to claim 2, characterized in that: A movable seat (7) is fixedly arranged between the connecting seats (28), and the movable seat (7) and the movable cavity (3) are slidably limited. Two hydraulic telescopic devices (8) are fixedly arranged on the upper end of the movable seat (7), and the upper ends of the telescopic ends of the hydraulic telescopic devices (8) are fixedly connected to the detection platform (9).

4. A battery sealing nail pre-welding nail detection device according to claim 3, characterized in that: A fixing seat (11) is fixedly arranged at the four corners of the upper end of the detection platform (9); a threaded rod (12) is arranged on one side of the fixing seat (11) close to the outside of the detection platform (9); the threaded rod (12) passes through and extends to the other side of the fixing seat (11); and a rubber pad (13) is fixedly arranged on one side of the threaded rod (12) close to the center of the detection platform (9).

5. A battery sealing nail pre-welding nail detection device according to claim 4, characterized in that: A second mounting seat (18) is fixedly arranged at the front and rear ends of the base (2) at the middle position of the outside, and a first mounting seat (17) is fixedly arranged at the front and rear ends of the base (2) located on one side of the second mounting seat (18), and slots (21) are arranged inside the first mounting seat (17) and the second mounting seat (18), and the slots (21) are of a through-type structure.

6. A battery sealing nail pre-welding nail detection device according to claim 5, characterized in that: A second mounting frame (20) is arranged inside the slot (21) located on the second mounting seat (18), and the upper end of the second mounting frame (20) extends above the base (2); a first mounting frame (19) is arranged inside the slot (21) located on the first mounting seat (17), and the upper end of the first mounting frame (19) extends above the base (2).

7. A battery sealing nail pre-welding nail detection device according to claim 6, characterized in that: A driving disk (23) is fixedly arranged at the lower end of the second mounting frame (20), a driving motor (26) is fixedly arranged inside the driving disk (23), an output shaft of the driving motor (26) extends to the lower end of the driving disk (23), and a cleaning disk (24) is fixedly arranged at the lower end of the output shaft of the driving motor (26).

8. A battery sealing nail pre-welding nail detection device according to claim 7, characterized in that: The first mounting seat (17), the second mounting seat (18) and the first mounting frame (19), the second mounting frame (20) are all provided with a first threaded hole (29) inside, the base (2) is provided with a second threaded hole (30) inside the slot (21) side, the second threaded hole (30) is connected to the slot (21), and the second threaded hole (30) corresponds to the position of the first threaded hole (29), the first mounting seat (17) and the second mounting seat (18) are both provided with a bolt (22) outside, the bolt (22) enters the second threaded hole (30) through the first threaded hole (29), and the lower end of the first mounting frame (19) is fixedly provided with a visual detection component (25).

9. A method for detecting battery sealing nails before welding, based on a battery sealing nails before welding detection device according to claim 8, characterized in that: The steps include: Step 1: Before performing the pin lift detection, first insert the pin into the hole of the battery, then place the battery on the detection table (9), and then synchronously start the second servo motor (10) so that the output shaft of the second servo motor (10) drives the second screw rod (15) to rotate, and the extrusion plate (16) is driven to move in the second slide groove (14) through the external thread of the second screw rod (15) until the front and rear end extrusion plates (16) are in contact with the side wall of the battery. At this time, the operator observes whether the pin lift position coincides with the positioning line (31). If the pin lift position does not coincide with the positioning line (31), At this time, the second servo motor (10) is turned on again, so that the second servo motor (10) drives the extrusion plate (16) to move through the second screw rod (15), and the battery is pushed to move on the test bench (9) through the extrusion plate (16) until the pin to be tested is moved to coincide with the positioning line (31). At this time, the operator rotates the threaded rod (12) so that the threaded rod (12) moves toward the center of the test bench (9) inside the fixing seat (11) through the external thread until the rubber pad (13) on the threaded rod (12) contacts the side wall of the battery and causes extrusion; Step 2: When performing the nail lifting detection, first turn on the first servo motor (6), so that the output shaft of the first servo motor (6) drives the first screw rod (5) to rotate, and the thread on the outside of the first screw rod (5) drives the connecting seat (28) to move in the first slide groove (4), and at the same time, the moving seat (7) fixedly connected to the connecting seat (28) slides in the moving cavity (3), and the moving seat (7) drives the detection platform (9) and the battery to move toward the direction of the visual detection component (25), and the position of the detection platform (9) is adjusted according to the height of the battery. At this time, the two hydraulic telescopic devices (8) are synchronously turned on, so that the telescopic ends of the hydraulic telescopic devices (8) are extended, and the extension of the telescopic ends of the hydraulic telescopic devices (8) drives the detection platform (9) and the battery to move upward until the battery is moved to a suitable position; Step 3: When performing the pin lift detection, the driving motor (26) is turned on, so that the output shaft of the driving motor (26) drives the cleaning disk (24) to rotate, and the moving seat (7) is kept in a moving state until the battery is moved to the lower end of the cleaning disk (24), at which time the pin lift at the upper end of the battery contacts the cleaning disk (24), and the pin lift is cleaned by the rotation of the cleaning disk (24); Step 4: When performing the pin detection, the movable seat (7) is kept in the moving state until the detection platform (9) is moved to the bottom of the visual detection component (25). At this time, the pin on the battery is within the range of the visual detection component (25), and the pin is detected. When it is necessary to adjust the battery position and detect different pins, the operator rotates the threaded rod (12) again, and drives the rubber pad (13) to move through the threaded rod (12) until the rubber pad (13) is separated from the battery. At this time, the first servo motor (6) is reversely energized, and the detection platform (9) is driven to reciprocate in the movable cavity (3) through the first servo motor (6) and the first screw rod (5). At this time, the second servo motor (10) is turned on, so that the second servo motor (10) drives the second screw rod (15) to push the extrusion plate (16) to move until the pin to be detected on the battery is pushed to coincide with the positioning line (31). At this time, the remaining pins are detected.

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