Lithium battery pseudo soldering detection device

Abstract

The invention belongs to the technical field of lithium battery cold solder joint detection, and particularly relates to a lithium battery cold solder joint detection device which comprises a conveying belt, a lithium battery is arranged at the top of the conveying belt, a driving box is fixedly installed at the top of the conveying belt, a driving mechanism is arranged in the driving box, telescopic rods are symmetrically arranged in the driving box, and the telescopic rods are connected with the driving mechanism. The driving mechanism is fixedly connected with the top ends of the two telescopic rods, and housings are fixedly mounted at the bottoms of the two telescopic rods; a wire is forked through relative movement of a side insertion plate and a side groove plate, a hydraulic cylinder drives the two detectors to move towards a pseudo soldering position, the hydraulic cylinder drives a toothed bar to move through a groove box during movement, and a shifting rod moves upwards through meshing arrangement of gears, so that when the detectors move downwards to approach the pseudo soldering position, the shifting rod moves upwards, and the detector moves downwards to move towards the pseudo soldering position. The shifting rod drives the side inserting plate and the side groove plate to move upwards, so that the electric wire is pulled upwards, and the side inserting plate and the side groove plate drive the electric wire to carry out wire pulling operation when the detector carries out moving detection on the pseudo soldering position.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery virtual soldering detection, and specifically relates to a lithium battery virtual soldering detection device. Background Art

[0002] A lithium battery is a battery using a lithium metal or lithium ion as an active substance and a non-aqueous electrolyte solution, which has the advantages of high energy density, long life, low self-discharge rate, no memory effect, etc., and is widely used in the fields of consumer electronics, new energy vehicles, energy storage, etc.

[0003] Lithium battery virtual soldering refers to the problem that the welding parts inside the battery, such as the electrodes and tabs, tabs and busbars, battery cells and connecting pieces, have insecure welding, poor contact or incomplete fusion, resulting in potential problems in the circuit connection. Virtual soldering may cause an increase in the contact resistance of the battery, heating, performance degradation, and even safety accidents (such as fire, explosion). Therefore, virtual soldering detection is a key quality control link in the lithium battery production process.

[0004] A patent application with the publication number CN117030656A discloses a virtual soldering detection device for lithium battery processing, including an infrared thermal imager, an ultrasonic detector, and a magnetic particle detector installed outside the detection box, and an infrared sensor, a probe, and a magnetic particle spraying assembly correspondingly arranged inside the detection box. The above three methods can effectively detect the virtual soldering of the lithium battery inside the detection box at the same time, so as to facilitate the detection of the lithium battery by the staff.

[0005] Currently, in the prior art, when detecting the virtual soldering of lithium batteries, the detection results largely depend on the experience and subjective judgment of the detection personnel. For minor virtual soldering defects, it is easy to cause missed detection. And since the virtual soldering positions are usually connected to wires, during the detection, the drooping of the wires may create certain detection dead angles, which is not conducive to the virtual soldering detection operation of lithium batteries.

[0006] Therefore, the present invention provides a lithium battery virtual soldering detection device. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows: A lithium battery false soldering detection device described in the present invention includes a conveyor belt. A lithium battery is placed on the top of the conveyor belt. A driving box is fixedly installed on the top of the conveyor belt. A driving mechanism is arranged inside the driving box. Telescopic rods are symmetrically arranged inside the driving box. The driving mechanism is fixedly connected to the tops of the two telescopic rods. The bottoms of the two telescopic rods are both fixedly installed with housing covers. The internal structures of the two housing covers are the same. A detection component is arranged inside the housing cover. The detection component is used to detect the false soldering position of the lithium battery. A wire dialing component is arranged inside the housing cover. The wire dialing component includes a side plug board and a side slot board. The wire dialing component is used to drive the side plug board and the side slot board to lift the wire when the detection component detects the lithium battery. The wire dialing component is placed below the detection component. By sequentially placing the lithium batteries on the conveyor belt, when the lithium battery is driven by the conveyor belt and moves below the driving box, the driving mechanism in the driving box drives the housing cover to move to the wire welding position of the lithium battery. When the housing cover moves to the wire welding position of the lithium battery, the telescopic rod drives the housing cover to move downward to cover the wire welding part of the lithium battery. Subsequently, the wire dialing component in the housing cover drives the side plug board and the side slot board to lift the wire. When the wire is lifted, the detection component in the housing cover rotates in a circle to detect the false soldering position of the lithium battery, thereby realizing the detection operation of the false soldering position of the lithium battery. Compared with manual detection, using the detection component to detect the lithium battery can better detect tiny false soldering defects. When detecting, the wire dialing component drives the side plug board and the side slot board to lift the wire, which can enable the detection component to more perfectly detect the wire welding part and will not leave a detection dead angle, which is more conducive to the false soldering detection operation of the lithium battery. By using the housing cover to move downward to cover the detection end of the lithium battery, it can avoid the influence of external factors on the detection operation of the detection component during detection, enabling the detection component to better detect the false soldering position of the lithium battery. By driving the detection components in the two pairs of housing covers to detect synchronously through the driving mechanism, the detection speed of the lithium battery can be accelerated, which is more conducive to the detection operation of the lithium battery.

[0009] Preferably, a gantry is fixedly installed on one side of the top of the conveyor belt. A plurality of cameras are fixedly installed on the inner wall of the gantry. When the lithium battery moves on the conveyor belt, the wire welding position of the lithium battery is scanned and determined by the cameras in the gantry. When the lithium battery moves directly below the driving box, the cameras transmit the scanned information back to the system. Subsequently, the system will control the driving mechanism to drive the two housing covers to move to the wire welding position of the lithium battery, playing a role in determining the false soldering position of the lithium battery.

[0010] Preferably, the detection component includes two detectors, and the number of detectors is symmetrically arranged. A top plate and a circular plate are provided inside the cover, and the top plate and the circular plate are fixedly connected by a connecting rod. A shaft rod is fixedly installed on the top of the two detectors, and the outer walls of the two shaft rods are slidably connected to the inner wall of the circular plate. When the telescopic rod drives the cover to move downward to cover the welding position of the lithium battery wire, the wire pulling assembly drives the side plug plate and the side slot plate to pull up the wire. When the wire is pulled up, the two detectors scan and detect the cold soldering position of the wire and the lithium battery, thereby realizing the function of detecting the cold soldering position of the lithium battery.

[0011] Preferably, a slot box is provided inside the cover shell, and a positioning motor is fixedly installed on the inner wall of the slot box, and the output ends of the positioning motor are fixedly connected to the outer walls of the two shafts respectively, and the outer walls of the two shafts are slidably connected to the inner wall of the slot box, and the outer walls of the top ends of the two shafts are symmetrically fixed with rectangular blocks, and the outer walls of the four rectangular blocks are slidably connected to the inner wall of the slot box. When the two detectors are relatively far from the cold soldering position of the lithium battery, the two shafts are driven by the positioning motor to move relative to each other in the slot box, and the two detectors will be relatively close to each other, so that the two detectors move the cold soldering position of the lithium battery, which ensures that the two detectors are always consistent with the cold soldering position of the lithium battery.

[0012] Preferably, vertical plates are symmetrically fixedly installed on the top of the circular plate, and the two ends of the trough box are slidingly connected to the inner walls of the two vertical plates respectively. Hydraulic cylinders are symmetrically fixedly installed on the bottom of the trough box, and the two hydraulic cylinders are fixedly installed on the top of the circular plate. When the wires are driven by the wire pulling assembly, the hydraulic cylinders drive the trough box to move downward, thereby causing the trough box to drive the two shafts to move downward, and the two detectors will slowly move from the top of the inner wall of the cover to the cold welding position, thereby driving the detectors to approach the cold welding position of the lithium battery.

[0013] Preferably, the wire-pulling assembly also includes a shift rod, and there are two shift rods, the bottom ends of the two shift rods are fixedly installed with a rectangular box, the interior of the rectangular box is connected to a connecting rod, the side plug-in plate and the side slot plate are respectively installed on the outer wall of the bottom ends of the two connecting rods, the outer walls of the two connecting rods are symmetrically fixed with rectangular plates, and one side of the four rectangular plates is fixedly installed with an electromagnet, and the four electromagnets are arranged opposite to each other in pairs, and the outer walls of the side plug-in plates can be slidably connected to the inner walls of the side slot plates, and the bottoms of the side plug-in plates and the side slot plates are symmetrically provided with arc surfaces, and the bottoms of the side plug-in plates and the side slot plates can be slidably connected to the top of the lithium battery. When the cover covers the lithium battery, the electromagnets are energized, and the four electromagnets will attract each other in pairs. When the electromagnets attract each other, the electromagnets drive the two connecting rods to move relative to each other in the two rectangular boxes, and the side plug-in plates and the side slot plates will move relative to each other under the drive of the two connecting rods, thereby forking the bottom of the wire, thereby forking the wire.

[0014] Preferably, the inner walls of the two rectangular boxes are fixedly installed with limited sliding rods, and the inner walls of the two connecting rods are slidably connected to the outer walls of the two limited sliding rods respectively. Reset springs are respectively provided between the inner walls of the two rectangular boxes and one side of the two connecting rods, and the two reset springs are respectively placed on the outside of the two limited sliding rods. When the two connecting rods move in the rectangular box, the two connecting rods pull the two reset springs to slide on the limited sliding rods. When the two detectors complete the detection of the cold welding position, the electromagnet is stopped from being energized, and the reset spring will pull the connecting rod to reset through elastic force, and the side plug plate and the side slot plate will open toward each other, thereby resetting the side plug plate and the side slot plate.

[0015] Preferably, a mounting bracket is symmetrically fixed on the top of the circular plate, and the inner walls of the two mounting brackets are rotatably connected to gears. Gear rods are fixedly installed on both ends of the slot box, and the outer walls of the two gear rods are slidably connected to the outer walls of the two vertical plates respectively. The teeth on the two gear rods and the shift rod can respectively engage with the teeth on the two gears. The two detectors are staggered with the positions of the side plug plates and the side slot plates. When the side plug plates and the side slot plates move relative to each other to fork the wires, the hydraulic cylinder drives the two shafts downward through the slot box, and the two detectors The device will slowly move from the top of the inner wall of the cover to the cold soldering position. When the slot box moves down, the slot box drives the gear rod to move. When the gear rod moves down, the shift rod will move up through the engagement of the gears. As a result, when the two detectors move down to approach the cold soldering position, the shift rod drives the side plug-in plate and the side slot plate to move up. When the side plug-in plate and the side slot plate move up, the wires will be pulled up, so that when the two detectors detect the cold soldering position, the side plug-in plate and the side slot plate drive the wires to perform the wire pulling operation.

[0016] Preferably, a rotation motor is fixedly installed on the top of the inner wall of the cover shell, and the output end of the rotation motor is fixedly connected to the top of the top plate, and the outer walls of the top plate and the circular plate are slidably connected to the inner wall of the cover shell. During operation, the wires at the cold soldering position of the lithium battery are scanned and detected by the camera. When the camera detects that the position of the side plug-in plate and the side slot plate coincides with the position of the wire, the rotation motor drives the top plate and the circular plate to rotate, so that the side plug-in plate and the side slot plate are adjusted to a staggered state with the wires to avoid the side plug-in plate and the side slot plate pressing the wires when the side plug-in plate and the side slot plate move down, making it impossible to perform the wire pulling operation. When the two detectors move down to the cold soldering position, the side plug-in plate and the side slot plate pull up the wires. At this time, the rotation motor is driven to rotate, so that the rotation motor drives the two detectors to rotate in a circle through the top plate and the circular plate, and the two detectors will rotate to perform rotation detection on the cold soldering position of the lithium battery, thereby driving the two detectors to rotate for detection.

[0017] Preferably, blowing devices are fixedly installed on the outer walls of both detectors. A plurality of gas flow ports are provided on the inner wall of the housing, and an air extraction device is fixedly installed on the outer wall of the housing. When the detectors rotate for detection, the blowing devices perform blowing operations on the soldering joint positions of the lithium batteries. When the blowing devices blow air, the air extraction device performs air extraction operations. Through the coordinated operations of the blowing devices and the air extraction device, when the detectors rotate to detect the soldering joint positions of the lithium batteries, the blowing devices blow air at the soldering joint positions, thereby blowing away impurities or dust at the soldering joint positions. After being drawn by the air extraction device, the impurities or dust finally enter the air extraction device through the gas flow ports, which can prevent the air extraction device from being affected by impurities or dust at the soldering joint positions during the detection of the soldering joints of the lithium batteries and play a role in dust extraction.

[0018] The beneficial effects of the present invention are as follows: 1. For the lithium battery soldering joint detection device of the present invention, the wire is lifted by the relative movement of the side plug board and the side slot board. The hydraulic cylinder drives the two detectors to move towards the soldering joint position. When moving, the hydraulic cylinder drives the rack to move through the groove box. Through the meshing setting of the gears, the displacement rod will move upward. Thus, when the detector moves downward to approach the soldering joint position, the displacement rod drives the side plug board and the side slot board to move upward, thereby lifting the wire upward, realizing the wire lifting operation of the side plug board and the side slot board when the detector moves to detect the soldering joint position.

[0019] 2. For the lithium battery soldering joint detection device of the present invention, when the housing covers the lithium battery, by energizing the electromagnets, the four electromagnets will attract each other in pairs. When the electromagnets attract each other, the electromagnets drive the two connecting rods to move relatively in the two rectangular boxes. The side plug board and the side slot board will move relatively and crosswise under the drive of the two connecting rods, thereby lifting the bottom of the wire and playing a role in lifting the wire.

[0020] 3. For the lithium battery soldering joint detection device of the present invention, the hydraulic cylinder drives the groove box to move downward, so that the groove box drives the two shaft rods to move downward. The two detectors will slowly move from the top of the inner wall of the housing towards the soldering joint position. When the detectors move to the soldering joint position, the adjustment motor drives the two shaft rods to move relatively in the groove box, and the two detectors will move closer to each other, so that the two detectors move to detect the soldering joint positions of the lithium battery, enabling the device to detect lithium batteries with different soldering joint positions.

[0021] 4. For a lithium battery false soldering detection device according to the present invention, when two detectors move down to the false soldering position, the side position inserting plate and the side position slot plate lift the wire. At this time, the driving indexing motor rotates, so that the indexing motor drives two detectors to rotate in a circle through the top plate and the circular plate. The two detectors will rotate to detect the false soldering position of the lithium battery, playing a role in driving the two detectors to rotate for detection.

[0022] 5. For a lithium battery false soldering detection device according to the present invention, when the blowing device and the air extraction device cooperate with each other, when the detector rotates to detect the false soldering position of the lithium battery, the blowing device blows air at the false soldering position, so as to blow away impurities or dust at the false soldering position. After being pumped by the air extraction device, it finally enters the air extraction device through the air flow port, which can prevent impurities or dust existing at the false soldering position from affecting the detection operation when the air extraction device detects the false soldering of the lithium battery, playing a role in dust extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the drawings.

[0024] Figure 1 is the overall view of the present invention; Figure 2 is the main view of the present invention; Figure 3 is the structural schematic diagram of the housing in the present invention; Figure 4 is the structural schematic diagram of the circular plate in the present invention; Figure 5 is the structural schematic diagram of the gear in the present invention; Figure 6 is the structural schematic diagram of the slot box in the present invention; Figure 7 is the structural schematic diagram of the rack in the present invention; Figure 8 is the structural schematic diagram of the rectangular plate in the present invention; Figure 9 is the structural schematic diagram of the connecting rod in the present invention.

[0025] In the figure: 1, conveyor belt; 2, gantry; 201, camera; 3, driving box; 4, air extraction device; 401, air flow port; 402, blowing device; 5, housing; 6, detector; 601, shaft rod; 7, indexing motor; 8, top plate; 801, circular plate; 9, gear; 901, rack; 902, vertical plate; 10, shifting rod; 11, slot box; 12, positioning motor; 13, hydraulic cylinder; 14, rectangular box; 1401, anti-slip rod; 1402, return spring; 1403, connecting rod; 15, electromagnet; 16, rectangular plate; 17, side position inserting plate; 18, side position slot plate. Detailed implementation manners

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0027] As Figures 1 to 9 shown, a lithium battery false soldering detection device according to an embodiment of the present invention includes a conveyor belt 1. A lithium battery is placed on the top of the conveyor belt 1. A driving box 3 is fixedly installed on the top of the conveyor belt 1. A driving mechanism is arranged inside the driving box 3. Telescopic rods are symmetrically arranged inside the driving box 3. The driving mechanism is fixedly connected to the tops of the two telescopic rods. The bottoms of the two telescopic rods are fixedly installed with housing 5. The internal structures of the two housing 5 are the same. A detection component is arranged inside the housing 5. The detection component is used to detect the false soldering position of the lithium battery. A wire dialing component is arranged inside the housing 5. The wire dialing component includes a side plug board 17 and a side groove board 18. The wire dialing component is used to lift the wire by driving the side plug board 17 and the side groove board 18 when the detection component detects the lithium battery. The wire dialing component is placed below the detection component; When detecting the false soldering of the lithium battery, the detection result largely depends on the experience and subjective judgment of the detector. For tiny false soldering defects, it is easy to cause missed detection. And since the false soldering position is usually connected to the wire, during the detection, the sagging of the wire may cause certain detection dead angles, which is not conducive to the false soldering detection operation of the lithium battery; By sequentially placing lithium batteries on conveyor belt 1, when the lithium battery is driven by conveyor belt 1 and moves below the driving box 3, the driving mechanism in the driving box 3 drives the housing 5 to move to the wire welding position of the lithium battery. When the housing 5 moves to the wire welding position of the lithium battery, the telescopic rod drives the housing 5 to move downward to cover the wire welding part of the lithium battery. Subsequently, the wire dialing component in the housing 5 drives the side position insertion plate 17 and the side position groove plate 18 to lift the wire. When the wire is lifted, the detection component in the housing 5 performs a circular rotation detection on the virtual welding position of the lithium battery, thereby realizing the detection operation of the virtual welding position of the lithium battery. Compared with manual detection, using the detection component to detect the lithium battery can better detect tiny virtual welding defects. During detection, the wire is lifted by the wire dialing component driving the side position insertion plate 17 and the side position groove plate 18, which enables the detection component to more perfectly detect the wire welding part and leaves no detection dead angle, making it more conducive to the virtual welding detection operation of the lithium battery. By using the housing 5 to move downward to cover the detection end of the lithium battery, it can prevent external factors from affecting the detection operation of the detection component during detection, enabling the detection component to better detect the virtual welding position of the lithium battery. By driving the detection components in two pairs of housings 5 to perform detection synchronously through the driving mechanism, the detection speed of the lithium battery can be accelerated, making it more conducive to the detection operation of the lithium battery. Here, it should be noted that the operation process of the driving mechanism is that when operating, the system determines the virtual welding position of the wires of the lithium battery, and then the system controls the motor to drive the housing 5 to move to the virtual welding position of the lithium battery. This method is an existing technical solution and is not represented in this solution, only stated for explanation. Conveyor belt 1 is an intermittent conveyor belt, and the lithium batteries detected in this solution are large lithium battery batteries.

[0028] As Figures 1 to 2 shown, a gantry 2 is fixedly installed on one side of the top of conveyor belt 1, and a plurality of cameras 201 are fixedly installed on the inner wall of gantry 2; When the lithium battery moves on conveyor belt 1, the wire welding position of the lithium battery is scanned and determined by the camera 201 in gantry 2. When the lithium battery moves directly below the driving box 3, the camera 201 transmits the scanned information back to the system, and then the system will control the driving mechanism to drive two housings 5 to move to the wire welding position of the lithium battery, playing a role in determining the virtual welding position of the lithium battery.

[0029] As Figures 4 to 6 shown, the detection component includes detectors 6, and the number of detectors 6 is symmetrically arranged in two. A top plate 8 and a circular plate 801 are arranged inside the housing 5, and the top plate 8 and the circular plate 801 are fixedly connected by a connecting rod. The tops of the two detectors 6 are fixedly installed with shaft rods 601, and the outer walls of the two shaft rods 601 are slidably connected to the inner wall of the circular plate 801; When the telescopic rod drives the cover shell 5 to move downward to cover the welding position of the lithium battery wire, the wire pulling assembly drives the side plug plate 17 and the side slot plate 18 to pull up the wire. When the wire is pulled up, the two detectors 6 scan and detect the cold soldering position of the wire and the lithium battery, thereby realizing the function of detecting the cold soldering position of the lithium battery. It should be noted here that a searchlight should be provided inside the two detectors 6. When the two detectors 6 scan and detect the welding position, the searchlight is turned on to illuminate the cold soldering position.

[0030] like Figures 4 to 6 As shown, a slot box 11 is provided inside the housing 5, and a positioning motor 12 is fixedly installed on the inner wall of the slot box 11. The output ends of the positioning motor 12 are respectively fixedly connected to the outer walls of the two shafts 601, and the outer walls of the two shafts 601 are slidably connected to the inner wall of the slot box 11. The outer walls of the top ends of the two shafts 601 are symmetrically fixed with square blocks, and the outer walls of the four square blocks are slidably connected to the inner wall of the slot box 11. Since the cold solder joint positions of lithium batteries are different, when the two detectors 6 are relatively far from the cold solder joint positions of the lithium batteries, the two shafts 601 are driven by the positioning motor 12 to move relative to each other in the slot box 11, and the two detectors 6 will be relatively close to each other, thereby moving the two detectors 6 relative to the cold solder joint positions of the lithium batteries, thereby ensuring that the two detectors 6 and the cold solder joint positions of the lithium batteries are always consistent.

[0031] like Figures 6 to 7 As shown, vertical plates 902 are symmetrically fixedly installed on the top of the circular plate 801, and the two ends of the trough box 11 are slidably connected to the inner walls of the two vertical plates 902. The bottom of the trough box 11 is symmetrically fixedly installed with hydraulic cylinders 13, and the two hydraulic cylinders 13 are fixedly installed on the top of the circular plate 801; When the wires are pulled up by the wire pulling assembly, the hydraulic cylinder 13 drives the slot box 11 to move downward, so that the slot box 11 drives the two shafts 601 to move downward, and the two detectors 6 will slowly move from the top of the inner wall of the cover 5 to the cold welding position, thereby driving the detector 6 to approach the cold welding position of the lithium battery.

[0032] like Figures 5 to 9As shown, the wire shifting assembly further includes a shifting rod 10. There are two shifting rods 10. At the bottom ends of the two shifting rods 10, a rectangular box 14 is fixedly installed. Inside the rectangular box 14, a connecting rod 1403 is connected. A side-position inserting plate 17 and a side-position slot plate 18 are respectively installed on the outer walls of the bottom ends of the two connecting rods 1403. On the outer walls of the two connecting rods 1403, rectangular plates 16 are symmetrically and fixedly installed. On one side of the four rectangular plates 16, electromagnets 15 are fixedly installed. The four electromagnets 15 are arranged in pairs facing each other. The outer wall of the side-position inserting plate 17 can be slidably connected to the inner wall of the side-position slot plate 18. On the bottoms of the side-position inserting plate 17 and the side-position slot plate 18, arc surfaces are symmetrically opened. The bottoms of the side-position inserting plate 17 and the side-position slot plate 18 can be slidably connected to the top of the lithium battery; When the housing 5 covers the lithium battery, by energizing the electromagnets 15, the four electromagnets 15 will attract each other in pairs. When the electromagnets 15 attract each other, the electromagnets 15 drive the two connecting rods 1403 to move relatively in the two rectangular boxes 14. The side-position inserting plate 17 and the side-position slot plate 18 will move relatively and crosswise under the drive of the two connecting rods 1403, so as to fork up the bottom of the wire, playing the role of forking up the wire.

[0033] As Figure 9 shown, on the inner walls of the two rectangular boxes 14, limit sliding rods 1401 are fixedly installed. The inner walls of the two connecting rods 1403 are respectively slidably connected to the outer walls of the two limit sliding rods 1401. Between the inner walls of the two rectangular boxes 14 and one side of the two connecting rods 1403, return springs 1402 are respectively arranged. The two return springs 1402 are respectively placed outside the two limit sliding rods 1401; When the two connecting rods 1403 move in the rectangular box 14, the two connecting rods 1403 pull the two return springs 1402 to slide on the limit sliding rods 1401. When the two detectors 6 complete the detection of the soldering defect positions, the power supply to the electromagnets 15 is stopped. The return springs 1402 will pull the connecting rods 1403 to reset through the elastic force, and the side-position inserting plate 17 and the side-position slot plate 18 will open towards each other, playing the role of resetting the side-position inserting plate 17 and the side-position slot plate 18.

[0034] As Figure 7 shown, on the top of the circular plate 801, mounting brackets are symmetrically and fixedly installed. Inside the inner walls of the two mounting brackets, gears 9 are rotatably connected. At both ends of the groove box 11, rack bars 901 are fixedly installed. The outer walls of the two rack bars 901 are respectively slidably connected to the outer walls of the two vertical plates 902. The teeth on the two rack bars 901 and the shifting rod 10 can respectively mesh with the teeth on the two gears 9. The positions of the two detectors 6 are staggered with those of the side-position inserting plate 17 and the side-position slot plate 18; When the side-position inserting plate 17 and the side-position grooved plate 18 move relative to each other to fork up the wire, the hydraulic cylinder 13 drives the two shaft rods 601 to move downward through the groove box 11, and the two detectors 6 will slowly move from the top of the inner wall of the housing 5 towards the position of the false soldering. When the groove box 11 moves downward, the groove box 11 drives the rack 901 to move. When the rack 901 moves downward, through the meshing setting of the gear 9, the displacement rod 10 will move upward. Thus, when the two detectors 6 move downward to approach the position of the false soldering, the displacement rod 10 drives the side-position inserting plate 17 and the side-position grooved plate 18 to move upward. When the side-position inserting plate 17 and the side-position grooved plate 18 move upward, they will lift the wire. Thus, when the two detectors 6 detect the position of the false soldering, the side-position inserting plate 17 and the side-position grooved plate 18 drive the wire to perform the wire-pulling operation.

[0035] As Figure 5 shown, a indexing motor 7 is fixedly installed at the top of the inner wall of the housing 5. The output end of the indexing motor 7 is fixedly connected to the top of the top plate 8. The outer walls of the top plate 8 and the circular plate 801 are slidably connected to the inner wall of the housing 5; During operation, the wire at the position of the false soldering of the lithium battery is scanned and detected by the camera 201. When the camera 201 detects that the positions of the side-position inserting plate 17 and the side-position grooved plate 18 coincide with the wire, the indexing motor 7 drives the top plate 8 and the circular plate 801 to rotate, so that the side-position inserting plate 17 and the side-position grooved plate 18 are adjusted to a state where they are staggered with the wire, avoiding that when the side-position inserting plate 17 and the side-position grooved plate 18 move downward, the side-position inserting plate 17 and the side-position grooved plate 18 press the wire and the wire-pulling operation cannot be realized. When the two detectors 6 move downward to the position of the false soldering, the side-position inserting plate 17 and the side-position grooved plate 18 lift the wire. At this time, the indexing motor 7 is driven to rotate, so that the indexing motor 7 drives the two detectors 6 to rotate in a circular motion through the top plate 8 and the circular plate 801. The two detectors 6 will rotate to detect the position of the false soldering of the lithium battery, playing a role in driving the two detectors 6 to rotate for detection.

[0036] As Figures 4 to 5 shown, air blowing devices 402 are fixedly installed on the outer walls of the two detectors 6. A plurality of air flow ports 401 are formed in the inner wall of the housing 5. An air extraction device 4 is fixedly installed on the outer wall of the housing 5; When the detector 6 rotates for detection, the air blowing device 402 performs an air blowing operation on the position of the false soldering of the lithium battery. When the air blowing device 402 blows air, the air extraction device 4 performs an air extraction operation. Through the cooperation of the air blowing device 402 and the air extraction device 4, when the detector 6 rotates to detect the position of the false soldering of the lithium battery, the air blowing device 402 blows air on the position of the false soldering, so as to blow away the impurities or dust at the position of the false soldering. After being pumped by the air extraction device 4, it finally enters the air extraction device 4 through the air flow ports 401. It can prevent the air extraction device 4 from being affected by impurities or dust at the position of the false soldering during the false soldering detection of the lithium battery, playing a role in dust extraction.

[0037] Working principle: Lithium batteries are successively placed on conveyor belt 1. When a lithium battery is driven by conveyor belt 1 and moves under driving box 3, the driving mechanism in driving box 3 drives housing 5 to move to the wire welding position of the lithium battery. When housing 5 moves to the wire welding position of the lithium battery, the telescopic rod drives housing 5 to move downward to cover the wire welding part of the lithium battery. Subsequently, the wire-pulling assembly in housing 5 drives side-position plug board 17 and side-position groove board 18 to lift the wires. When the wires are lifted, the detection assembly in housing 5 performs a circular rotation detection on the virtual welding positions of the lithium battery, thereby realizing the detection operation of the virtual welding positions of the lithium battery. Compared with manual detection, using the detection assembly to detect lithium batteries can better detect tiny virtual welding defects. During detection, the wire-pulling assembly drives side-position plug board 17 and side-position groove board 18 to lift the wires, which enables the detection assembly to more perfectly detect the wire welding part and leaves no detection blind spots, making it more conducive to the virtual welding detection operation of lithium batteries. By using housing 5 to move downward to cover the detection end of the lithium battery, it can avoid the influence of external factors on the detection operation of the detection assembly during detection, enabling the detection assembly to better detect the virtual welding positions of the lithium battery. By driving the detection assemblies in two pairs of housings 5 to perform detection synchronously through the driving mechanism, the detection speed of lithium batteries can be accelerated, which is more conducive to the detection operation of lithium batteries; When the lithium battery moves on conveyor belt 1, the camera 201 in gantry 2 scans and determines the wire welding position of the lithium battery. When the lithium battery moves directly below driving box 3, the camera 201 transmits the scanned information back to the system. Subsequently, the system will control the driving mechanism to drive two housings 5 to move to the wire welding position of the lithium battery, playing a role in determining the virtual welding positions of the lithium battery; When the telescopic rod drives housing 5 to move downward to cover the wire welding part of the lithium battery, the wire-pulling assembly drives side-position plug board 17 and side-position groove board 18 to lift the wires. When the wires are lifted, two detectors 6 scan and detect the virtual welding positions between the wires and the lithium battery, thereby realizing the function of detecting the virtual welding positions of the lithium battery; When the two detectors 6 are relatively far from the virtual welding positions of the lithium battery, the adjustment motor 12 drives two shaft rods 601 to move relatively in slot box 11, and the two detectors 6 will move closer to each other, so that the two detectors 6 move to the virtual welding positions of the lithium battery, playing a role in ensuring that the two detectors 6 always maintain consistency with the virtual welding positions of the lithium battery; When the wires are lifted by the drive of the wire-pulling assembly, the hydraulic cylinder 13 drives slot box 11 to move downward, so that slot box 11 drives two shaft rods 601 to move downward, and the two detectors 6 will slowly move from the inner wall top of housing 5 towards the virtual welding positions, playing a role in driving the detectors 6 to approach the virtual welding positions of the lithium battery; When the housing 5 covers the lithium battery, by energizing the electromagnets 15, the four electromagnets 15 will attract each other in pairs. When the electromagnets 15 attract each other, the electromagnets 15 drive the two connecting rods 1403 to move relatively within the two rectangular boxes 14. The side-position inserting plate 17 and the side-position slot plate 18 will relatively cross-move under the drive of the two connecting rods 1403, so as to fork up the bottom of the wire, playing the role of forking up the wire; When the two connecting rods 1403 move within the rectangular box 14, the two connecting rods 1403 pull the two return springs 1402 to slide on the anti-slip rods 1401. When the two detectors 6 complete the detection of the soldering joint position, the power supply to the electromagnets 15 is stopped, and the return springs 1402 will pull the connecting rods 1403 to reset through the elastic force, and the side-position inserting plate 17 and the side-position slot plate 18 will open towards each other, playing the role of resetting the side-position inserting plate 17 and the side-position slot plate 18; When the side-position inserting plate 17 and the side-position slot plate 18 relatively move to fork up the wire, the hydraulic cylinder 13 drives the two shaft rods 601 to move downward through the groove box 11, and the two detectors 6 will slowly move from the top of the inner wall of the housing 5 towards the soldering joint position. When the groove box 11 moves downward, the groove box 11 drives the toothed rod 901 to move. When the toothed rod 901 moves downward, through the meshing setting of the gear 9, the shifting rod 10 will move upward. So when the two detectors 6 move downward to approach the soldering joint position, the shifting rod 10 drives the side-position inserting plate 17 and the side-position slot plate 18 to move upward. When the side-position inserting plate 17 and the side-position slot plate 18 move upward, they will lift the wire, so as to realize that when the two detectors 6 detect the soldering joint position, the side-position inserting plate 17 and the side-position slot plate 18 drive the wire to perform the wire-pulling operation; During operation, the camera 201 scans and detects the wires at the soldering joint positions of the lithium battery. When the camera 201 detects that the positions of the side-position inserting plate 17 and the side-position slot plate 18 coincide with the wire, the indexing motor 7 drives the top plate 8 and the circular plate 801 to rotate, so that the side-position inserting plate 17 and the side-position slot plate 18 are adjusted to a state where they are staggered with the wire, avoiding that when the side-position inserting plate 17 and the side-position slot plate 18 move downward, the side-position inserting plate 17 and the side-position slot plate 18 press the wire and the wire-pulling operation cannot be realized. When the two detectors 6 move downward to the soldering joint position, the side-position inserting plate 17 and the side-position slot plate 18 lift the wire. At this time, the indexing motor 7 is driven to rotate, so that the indexing motor 7 drives the two detectors 6 to rotate in a circular motion through the top plate 8 and the circular plate 801, and the two detectors 6 will rotate to detect the soldering joint positions of the lithium battery in a circular motion, playing the role of driving the two detectors 6 to rotate and detect; When the detector 6 rotates for detection, the blowing device 402 performs a blowing operation on the solder joint position of the lithium battery. When the blowing device 402 blows air, the air extraction device 4 performs an air extraction operation. By the coordinated operation of the blowing device 402 and the air extraction device 4, when the detector 6 rotates to detect the solder joint position of the lithium battery, the blowing device 402 blows air at the solder joint position, thereby blowing away impurities or dust at the solder joint position. After being pumped by the air extraction device 4, it finally enters the air extraction device 4 through the air flow port 401. This can prevent impurities or dust existing at the solder joint position from affecting the detection operation when the air extraction device 4 performs a solder joint detection on the lithium battery, and plays a role in dust extraction.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A virtual soldering detection device for a lithium battery, characterized in that: It includes a conveyor belt, on the top of which a lithium battery is placed. A driving box is fixedly installed on the top of the conveyor belt. A driving mechanism is arranged inside the driving box. Telescopic rods are symmetrically arranged inside the driving box. The driving mechanism is fixedly connected to the tops of the two telescopic rods. At the bottoms of the two telescopic rods, a housing is fixedly installed respectively. The internal structures of the two housings are the same. A detection component is arranged inside the housing, and the detection component is used to detect the position of the virtual soldering of the lithium battery. A wire-pulling component is arranged inside the housing. The wire-pulling component includes a side-position inserting plate and a side-position slot plate. The wire-pulling component is used to lift the wire by driving the side-position inserting plate and the side-position slot plate when the detection component detects the lithium battery. The wire-pulling component is placed below the detection component.

2. The virtual soldering detection device for a lithium battery according to claim 1, characterized in that: On one side of the top of the conveyor belt, a gantry is fixedly installed, and a plurality of cameras are fixedly installed on the inner wall of the gantry.

3. The lithium battery soldering inspection device according to claim 2, characterized in that: The detection component includes detectors. The number of detectors is symmetrically arranged in two. A top plate and a circular plate are arranged inside the housing. The top plate and the circular plate are fixedly connected by a connecting rod. Shaft rods are fixedly installed on the tops of the two detectors respectively. The outer walls of the two shaft rods are slidably connected to the inner wall of the circular plate.

4. The lithium battery false soldering detection device according to claim 3, characterized in that: A slot box is arranged inside the housing. An adjustment motor is fixedly installed on the inner wall of the slot box. The output ends at both ends of the adjustment motor are respectively fixedly connected to the outer walls of the two shaft rods. The outer walls of the two shaft rods are slidably connected to the inner wall of the slot box. On the outer walls of the tops of the two shaft rods, rectangular blocks are symmetrically fixedly installed respectively. The outer walls of the four rectangular blocks are slidably connected to the inner wall of the slot box.

5. The lithium battery soldering inspection device according to claim 4, characterized in that: Vertically arranged plates are symmetrically fixedly installed on the top of the circular plate. The two ends of the slot box are respectively slidably connected to the inner walls of the two vertically arranged plates. Hydraulic cylinders are symmetrically fixedly installed at the bottom of the slot box, and the two hydraulic cylinders are fixedly installed on the top of the circular plate.

6. The lithium battery soldering inspection device according to claim 5, wherein: The wire-pulling component further includes displacement rods. The number of displacement rods is two. At the bottom ends of the two displacement rods, rectangular boxes are fixedly installed respectively. A connecting rod is connected inside the rectangular box. The side-position inserting plate and the side-position slot plate are respectively installed on the outer walls at the bottom ends of the two connecting rods. Rectangular plates are symmetrically fixedly installed on the outer walls of the two connecting rods respectively. Electromagnets are fixedly installed on one side of the four rectangular plates. The four electromagnets are arranged in pairs opposite to each other. The outer wall of the side-position inserting plate can be slidably connected to the inner wall of the side-position slot plate. Arc surfaces are symmetrically opened at the bottoms of the side-position inserting plate and the side-position slot plate. The bottoms of the side-position inserting plate and the side-position slot plate can be slidably connected to the top of the lithium battery.

7. The virtual soldering detection device for a lithium battery according to claim 6, wherein: Limited-sliding rods are fixedly installed on the inner walls of the two rectangular boxes respectively. The inner walls of the two connecting rods are respectively slidably connected to the outer walls of the two limited-sliding rods. Reset springs are respectively arranged between the inner walls of the two rectangular boxes and one side of the two connecting rods. The two reset springs are respectively placed outside the two limited-sliding rods.

8. The virtual soldering detection device for a lithium battery according to claim 7, characterized in that: Mounting frames are symmetrically fixedly installed on the top of the circular plate. Gears are rotatably connected to the inner walls of the two mounting frames respectively. Tooth rods are fixedly installed at the two ends of the slot box respectively. The outer walls of the two tooth rods are respectively slidably connected to the outer walls of the two vertically arranged plates. The teeth on the two tooth rods and the displacement rods can respectively mesh with the teeth on the two gears. The positions of the two detectors are staggered with those of the side-position inserting plate and the side-position slot plate.

9. The lithium battery soldering inspection device according to claim 8, wherein: A rotation motor is fixedly installed on the top of the inner wall of the housing. The output end of the rotation motor is fixedly connected to the top of the top plate. The outer walls of the top plate and the circular plate are slidably connected to the inner wall of the housing.

10. A lithium battery soldering inspection device according to claim 9, characterized in that: The outer walls of both detectors are fixedly installed with blowing devices, the inner wall of the cover shell is provided with a plurality of gas flow ports, and the outer wall of the cover shell is fixedly installed with an air extraction device.

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