Storage battery post correction and cover closing detection system and method for carrying out storage battery post correction and cover closing detection by using system

Abstract

The invention provides a storage battery pole correction and cover closing detection system and method. The storage battery pole correction and cover closing detection system and method integrate battery pole correction, cover testing and pole height detection functions. The system comprises a correction device, a cover closing detection device and a conveying belt, the pole correction precision is ensured through a correction positioning window and a supporting block which are in limiting fit, and the cover closing detection mechanism accurately detects the pole height through a contact type sensor. The conveying belt is divided into three stations of correction, detection and selection, and the automatic process is achieved. The correction positioning window is in limiting fit with the battery notch part, the supporting block provides stable supporting, and the correction efficiency and precision are improved. The cover closing detection mechanism is simple in design and easy to maintain, and ensures detection accuracy. The system is provided with an accurate battery conveying positioning and limiting mechanism, the equipment applicability is enhanced, and a battery assembly is protected. The invention also provides a method for carrying out storage battery pole correction and cover closing detection by using the system. Generally speaking, the production efficiency and the product quality of the storage battery manufacturing industry are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing, and in particular to a system for battery pole correction and cover detection and a method for battery pole correction and cover detection using the system. Background Art

[0002] In recent years, with the deepening implementation of the Industry 4.0 strategy, the battery industry has accelerated its transformation toward intelligent manufacturing. The penetration rate of automated production lines has increased significantly annually. The introduction of robotic welding systems, AGV logistics systems, and MES production management systems has significantly optimized staffing, increased production efficiency, and improved quality consistency (product qualification rates have risen to over 99%). This transformation effectively addresses the dual pressures of rising labor costs and stricter environmental standards (the "Lead-Acid Battery Industry Standard Conditions" require a 15% reduction in energy consumption).

[0003] However, in the critical process of battery assembly lines—the post-cast welding of the pole groups—there are still technical bottlenecks hindering the industry's development. Traditionally, the cast-welded pole groups require mechanical fixtures to calibrate the pole positions to ensure precise alignment with the battery cover holes. Current mainstream equipment utilizes a "visual positioning + servo press-fit" technology, but actual operation has exposed the following prominent issues:

[0004] Insufficient correction accuracy: Due to the thermal deformation of cast welding (the temperature variation range is 80-150℃, resulting in a deformation of ±0.3mm) and the positioning error of the fixture (cumulative error ≥±0.15mm), the actual correction accuracy can only reach ±0.5mm, which is far lower than the design tolerance requirement of ±0.2mm for the precision injection molding hole of the battery cover.

[0005] Frequent pile defects: Industry research data shows that when the deviation between the pole and the pile hole center exceeds 0.4mm, mechanical interference will occur during the assembly of the cover plate, causing scratches between the outer wall of the pole and the inner wall of the pile hole (contact stress > 25MPa). This abnormal contact will not only cause damage to the pole surface coating (shedding area > 3mm 2 ), will cause uneven filling of sealant, and eventually form irreversible pile defects (the average defect rate in the industry is 3‰), resulting in unmaintainable production losses.

[0006] Process control lags: Existing calibration systems often use open-loop control and lack real-time force feedback. When the pole deflects, the press-fit mechanism continues to follow the preset path, easily causing overpressure damage (the risk of mold case rupture increases threefold when the peak pressure exceeds 800N). Manual re-inspection (spot check rate <5%) is difficult to effectively identify hidden defects, resulting in problematic batteries being passed on to subsequent processes.

[0007] The industry has tried various solutions to address this issue: 1. Increasing the resolution of vision systems to 10μm, but this increased hardware costs by 2.3 times and was susceptible to interference from workshop dust; 2. Using elastic compensating fixtures, while partially absorbing deformation errors, increased production line cycle time; 3. Adding manual calibration stations, which defeats the purpose of automation upgrades. None of these solutions fundamentally resolved the issue of balancing precision and efficiency.

[0008] Therefore, there is an urgent need to develop a system or method for pole correction and cover detection, which can not only ensure the accuracy of pole correction, but also reduce the battery box cover blocking rate, so as to promote the intelligent manufacturing upgrade of the battery industry. Summary of the Invention

[0009] Based on the deficiencies in the prior art, the present invention aims to provide a system for battery pole correction and cover detection and a method for battery pole correction and cover detection using the system. The design scheme is integrated, integrating battery pole correction, cover testing, and pole height detection together to ensure pole correction, reduce the battery deadening rate of the plate box cover on the assembly line, and reduce production process losses.

[0010] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows:

[0011] The present invention provides a battery pole correction and cover detection system. The battery to be processed is a semi-finished product including a battery tank and a pole group. The pole group is placed in the tank and a busbar and a pole are cast-welded. The pole includes a positive pole and a negative pole. The pole is connected to the side of the busbar through the side of the pole base. The battery pole correction and cover detection system includes a battery pole correction device and a battery pole cover detection device.

[0012] frame;

[0013] A conveyor belt is provided on the frame and is used to convey the batteries. The conveyor belt is provided with a correction station, a testing station and a selection station in sequence from the upstream end to the downstream end;

[0014] The battery pole correction device includes a correction unit,

[0015] The correction unit is arranged on the frame near the correction station, and includes a correction positioning mechanism for positioning the battery at the correction station, and a mold correction mechanism for performing mold correction on the pole, the mold correction mechanism includes a liftable correction mounting seat, the correction mounting seat is provided with a correction positioning plate located above the correction station, and the correction positioning plate is provided with a correction positioning window for cooperating with the mouth of the battery slot; the correction mounting seat is also provided with a pair of correction plates that can move horizontally relative to each other, the two correction plates are staggered up and down, and correction openings are provided on the side surfaces of the opposite sides of the two correction plates corresponding to the positions of the two poles of the battery during detection; one of the correction plates is also provided with a support block that extends under the pole base to support the pole during correction;

[0016] The battery terminal cover detection device includes a cover detection unit and a selection unit.

[0017] The cover closing detection unit is arranged on the frame near the cover closing detection station, and includes a cover closing detection positioning mechanism for positioning the battery at the cover closing detection station, and a cover closing detection mechanism for performing cover closing detection on the pole, the cover closing detection mechanism includes a liftable cover closing detection mounting seat, the cover closing detection mounting seat is provided with a cover closing detection positioning plate located above the cover closing detection station, the cover closing detection positioning plate is provided with a cover closing detection positioning window for cooperating with the mouth limit of the battery; the cover closing detection mounting seat is also provided with a cover closing detection plate, the position of the cover closing detection plate above the cover closing detection positioning window is provided with two detection holes for two poles to extend into during detection, and a contact sensor for detecting the height of the pole is provided at each detection hole corresponding to the detection hole on the cover closing detection plate, and the contact of the contact sensor is arranged across above the detection hole;

[0018] The picking unit is provided on the frame near the picking station and is used to remove unqualified batteries detected by the cover closing detection unit from the conveyor belt;

[0019] The conveyor belt is divided into three independent sub-conveyor belts, and each sub-conveyor belt is connected in sequence;

[0020] Among them, the sub-conveyor belt located upstream is provided with the correction station; the sub-conveyor belt located in the middle is provided with the detection station; and the sub-conveyor belt located downstream is provided with the selection station.

[0021] The present invention ensures accurate positioning of the battery at the calibration station by means of the limiting cooperation between the calibration positioning window and the battery notch. This design reduces the need for manual alignment and increases the automation level of the calibration process, thereby speeding up the calibration process and improving the calibration accuracy.

[0022] The support block extends under the pole base to provide support during calibration, so that the pole can be stably supported during the calibration process, avoiding inaccurate calibration caused by pole shaking or misalignment.

[0023] The limiting cooperation between the correction positioning window and the battery slot and the setting of the support block together constitute the key mechanism to ensure the accuracy of the pole correction.

[0024] First, the correction positioning window utilizes the structural features of the battery slot. The shape and size of this window closely match the battery slot, and when the battery is placed on the correction station, the battery slot can be accurately embedded in the correction positioning window. This limited fit not only limits the horizontal movement of the battery, but also ensures the stability of the battery in the vertical direction. Secondly, the support block is set on one of the correction plates and is designed to extend under the pole base during correction. When the correction plate approaches the battery and applies the correction force, the support block first contacts the pole base and provides stable support. This support function effectively prevents the pole from shaking or misaligning during the correction process, ensuring the accurate transmission of the correction force and the precise correction of the pole.

[0025] The alignment window, the battery notch, and the support block work together to create a stable and precise alignment environment. This environment ensures accurate alignment of the battery terminals, meeting the requirements of subsequent cap-closure testing. This increases the automation level of the alignment process, speeds up alignment, and significantly improves accuracy.

[0026] The lid closure detection mechanism's liftable lid closure detection mount, the lid closure detection positioning plate located on it, along with the detection hole and contact sensor, enables the device to perform highly accurate lid closure detection on the terminal. The contact sensor's contacts, positioned across the detection hole, accurately detect the terminal's height, thereby determining its alignment with the battery compartment cover's post hole.

[0027] Furthermore, the bottom opening of the correction positioning window is provided with a first guiding slope, which can improve the automation and operational convenience of the correction process, and reduce operational errors and the number of repeated corrections;

[0028] The bottom opening of the cover closing detection positioning window is provided with a fourth guiding slope, which helps the battery to be more easily aligned with the window when placed in the cover closing detection station. Even if there is a certain position deviation, it can be automatically corrected through the guidance of the slope, thereby improving the efficiency and accuracy of positioning.

[0029] Furthermore, the correction port is opened on the side of the correction plate and is arranged to pass through the correction plate vertically. The diameter of the correction port gradually decreases from the opening on the side of the correction plate to the inside to form a second guide slope, which improves the correction accuracy and reduces the damage to the pole caused by improper correction, and also helps to improve the correction efficiency.

[0030] Furthermore, a third guiding slope is provided on the side of the support block facing the pole base to protect the pole base from damage, while ensuring that the support block can stably support the pole, providing a reliable support foundation for the calibration process.

[0031] Furthermore, the correction mounting seat is provided with a first driving mechanism for driving the correction plate to move horizontally.

[0032] Furthermore, the frame is provided with a vertical first guide rail, the correction mounting seat is in sliding cooperation with the first guide rail, and the frame is also provided with a second driving mechanism for driving the correction mounting seat to rise and fall;

[0033] The frame is provided with a second vertical guide rail, and the cover closing detection mounting seat is slidably matched with the second guide rail. The frame is also provided with a fourth driving mechanism for driving the cover closing detection mounting seat to rise and fall.

[0034] The applicable scope of the correction device and the cover closing detection device is increased so that they can handle batteries of different models, thereby improving the versatility and flexibility of the equipment.

[0035] Specifically, the correction and positioning mechanism includes:

[0036] The device comprises a first sensor for detecting the battery; first guide and limit baffles located on the frame and positioned on either side of the conveyor belt; a first clamping arm located on the frame on one side of the conveyor belt and capable of horizontal movement to cooperate with the first guide and limit baffle on the opposite side to clamp and position the battery; and a third drive mechanism located on the frame and positioned on the conveyor belt side for driving the first clamping arm to move horizontally. This correction and positioning mechanism improves the accuracy and stability of the correction and positioning, providing reliable support for subsequent correction processes. This design also contributes to increased automation and operational convenience throughout the correction device.

[0037] Specifically, the cover closing detection and positioning mechanism includes:

[0038] a second sensor for detecting the battery; a second guide limit baffle provided on the frame and located on both sides of the conveyor belt; a second clamping arm located on one side of the conveyor belt and capable of horizontal movement so as to cooperate with the second guide limit baffle on the opposite side to clamp and position the battery; a fifth driving mechanism provided on the frame and located on one side of the conveyor belt and used to drive the second clamping arm to move horizontally.

[0039] The driving mechanism includes a driving cylinder for driving, and the lifting and lowering of the mounting seat and the horizontal movement of the clamping arm are achieved through the driving cylinder.

[0040] Specifically, the selection unit includes:

[0041] The conveyor belt includes a third sensor for detecting batteries; a block for blocking the batteries; a sixth drive mechanism mounted on a frame on one side of the conveyor belt, configured to horizontally drive the block and extend it above the conveyor belt; a push plate mounted on the upstream end of the block, configured to remove unqualified batteries blocked by the block from the conveyor belt; and a seventh drive mechanism mounted on a frame on the other side of the conveyor belt, configured to horizontally drive the push plate. Upon detecting the arrival of batteries via the third sensor, the sixth drive mechanism drives the block to extend above the conveyor belt, preventing the unqualified batteries from continuing to move. The push plate's design allows unqualified batteries blocked by the block to be removed from the conveyor belt, enabling the automatic collection and processing of unqualified products and improving the automation level of the production line.

[0042] The present invention also provides a method for battery pole correction and cover closure detection, and uses the above-mentioned battery pole correction and cover closure detection system to perform battery pole correction and cover closure detection.

[0043] The beneficial effects of the present invention are mainly reflected in the following aspects:

[0044] 1. Significantly improve calibration accuracy and efficiency:

[0045] The adoption of a mold-locking correction structure, combined with a correction positioning window and support block setting with limited cooperation, ensures high-precision positioning and stable support of the battery pole during the correction process, thereby significantly improving the accuracy and efficiency of the correction.

[0046] 2. Enhance equipment applicability and protect battery components:

[0047] The precise battery conveying positioning and limiting mechanism is not only suitable for batteries of various specifications, but also effectively protects the poles and battery slots from damage, thus extending the battery life.

[0048] 3. Improve production safety and reduce losses:

[0049] Through automated calibration and inspection processes, manual intervention is reduced, improving overall production line safety. Furthermore, high-precision inspection and selection mechanisms reduce the rate of battery failure on the assembly line, including plate and box covers, and minimize production losses.

[0050] 4. Realize production line linkage and efficient testing:

[0051] The equipment's integrated design combines battery terminal alignment, cover testing, and terminal height detection into a single device, enabling coordinated operation with existing assembly lines. Each channel features a terminal alignment station and a battery cover inspection station, improving production efficiency.

[0052] 5. Improve detection efficiency and accuracy:

[0053] The battery pole cover detection device is equipped with a precise positioning mechanism, an efficient detection mechanism and an automated selection unit. It can accurately detect the accuracy of battery pole cover and automatically reject unqualified products, thereby improving detection efficiency and accuracy.

[0054] 6. Simple structure and easy maintenance:

[0055] The equipment design structure is concise and clear, which is easy for daily maintenance and troubleshooting, reducing maintenance costs and improving equipment reliability and stability.

[0056] In summary, the present invention achieves high precision, high efficiency and high automation in the battery pole correction and cover detection process through integrated design and technological innovation. The correction positioning window with a mold correction structure and a limiter, combined with the stable support of the support block, significantly improves the accuracy and stability of the battery pole correction, while protecting the battery components from damage. In addition, the precise battery conveying positioning and limiter mechanism, as well as the integrated detection and selection unit, ensure the accuracy of the detection process, effectively reduce the battery dead pile rate of the plate box cover on the assembly line, and reduce losses in the production process. The equipment structure is simple and clear, easy to maintain, and it is matched with the existing assembly line to realize the linkage operation of the production line, which not only improves production efficiency, but also enhances production safety. Overall, the present invention has brought significant economic benefits and technological progress to the battery manufacturing industry, improved product quality and production efficiency, and reduced production costs and maintenance difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a schematic diagram of the battery pole calibration and cover closing detection system of the present invention;

[0058] Figure 2 Schematic diagram of the battery pole correction device of the present invention;

[0059] Figure 3 Schematic diagram of the mold clamping and correction mechanism of the present invention;

[0060] Figure 4 Schematic diagram of the correction plate of the present invention;

[0061] Figure 5 This is a bottom view of the correction plate of the present invention;

[0062] Figure 6 This is a side view of the correction plate of the present invention;

[0063] Figure 7 This is a schematic diagram of the positioning window and the battery notch portion of the present invention.

[0064] Figure 8 Schematic diagram of a battery terminal cover closing detection device according to the present invention;

[0065] Figure 9 It is a side view schematic diagram of the battery terminal cover closing detection device of the present invention;

[0066] Figure 10 Schematic diagram of the battery terminal cover closing detection station and detection unit of the present invention;

[0067] Figure 11 This is a bottom view of the battery terminal cover closing detection station and detection unit of the present invention;

[0068] Figure 12 Schematic diagram of a battery terminal cover closing detection unit according to the present invention;

[0069] Figure 13 It is a cross-sectional view of the battery pole cover closing detection unit of the present invention.

[0070] Markings in the figure: 0-frame, 1-conveyor belt, 2-battery, 3-correction unit, 31-correction positioning mechanism, 311-first sensor, 312-first guide limit baffle, 313-first clamping arm, 314-third driving mechanism, 32-mold clamping correction mechanism, 321-correction mounting seat, 3212-first driving mechanism, 3213-second driving mechanism, 3211 correction positioning plate, 32111-correction positioning window, 321111-first guide inclined plane, 322-correction plate, 3221-correction port, 32211-second guide inclined plane, 3222-support block, 32221-third guide inclined plane, 4- Pole, 5-first guide rail, 6-cover detection and positioning mechanism, 61-second sensor, 62-second guide limit baffle, 63-second clamping arm, 64-fifth drive mechanism, 7-cover detection mechanism, 71-cover detection mounting seat, 711-cover detection positioning plate, 7111-cover detection positioning window, 71111-fourth guide slope, 712-cover detection plate, 7121-detection hole, 7122-contact sensor, 71221-contact, 713-fourth drive mechanism, 8-second guide rail, 9-third sensor, 10-block, 11-sixth drive mechanism, 12-push plate, 121-seventh drive mechanism. DETAILED DESCRIPTION

[0071] Depend on Figure 1-13 As shown, the present invention provides a battery pole correction and cover detection system. The battery 2 to be processed is a semi-finished product including a battery tank and a pole group. The pole group is placed in the tank and a busbar and a pole 4 are cast-welded. The pole 4 includes a positive pole and a negative pole. The pole 4 is connected to the side of the busbar through the side of the pole base. The battery pole correction and cover detection system includes a battery pole correction device and a battery pole cover detection device, a rack 0, and a conveyor belt 1.

[0072] The conveyor belt 1 is provided on the frame 0 and is used to convey the batteries 2. The conveyor belt 1 is provided with a calibration station, an inspection station, and a selection station from the upstream end to the downstream end. The conveyor belt 1 is divided into three independent sub-conveyor belts, which are connected in sequence. The upstream sub-conveyor belt is provided with a calibration station; the middle sub-conveyor belt is provided with an inspection station; and the downstream sub-conveyor belt is provided with a selection station.

[0073] Specifically, the battery pole correction device includes a correction unit 3,

[0074] The correction unit 3 is arranged on the frame 0 near the correction station, and includes a correction positioning mechanism 31 for positioning the battery 2 at the correction station, and a mold correction mechanism 32 for performing mold correction on the pole 4. The mold correction mechanism 32 includes a liftable correction mounting seat 321, and the correction mounting seat 321 is provided with a correction positioning plate 3211 located above the correction station. The correction positioning plate is provided with a correction positioning window 32111 for cooperating with the mouth of the battery slot. The correction positioning window cooperates with the limit of the battery slot mouth to ensure the precise positioning of the battery at the correction station, reducing the manual alignment. Need, improve the correction accuracy; the correction mounting seat 321 is also provided with a pair of correction plates 322 that can move relatively horizontally, and the two correction plates 322 are staggered up and down. Correction openings 3221 are provided on the side surfaces of the two correction plates 322 corresponding to the positions of the two battery poles 4 during detection; one of the correction plates 322 is also provided with a support block 3222 that extends under the base of the pole 4 to support the pole 4 during correction. The support block extends under the base of the pole to provide support during correction, so that the pole can be stably supported during the correction process, avoiding inaccurate correction caused by shaking or misalignment of the pole;

[0075] The battery terminal cover detection device includes a cover detection unit and a selection unit.

[0076] The cover detection unit is arranged on the frame 0 near the cover detection station, including a cover detection positioning mechanism 6 for positioning the battery at the cover detection station, and a cover detection mechanism 7 for performing cover detection on the pole 4. The cover detection mechanism 7 includes a liftable cover detection mounting seat 71, and the cover detection mounting seat 71 is provided with a cover detection positioning plate 711 located above the cover detection station. The cover detection positioning plate 711 is provided with a cover detection positioning window 7111 for cooperating with the mouth limit of the battery 2; the cover detection mounting seat 71 is also provided with a cover detection plate 712, and the position above the cover detection positioning window 7111 on the cover detection plate 712 is provided with a position for each of the two poles 4 to be detected during the detection. Two detection holes 7121 are inserted into the cover detection plate 712, and a contact sensor 7122 for detecting the height of the pole is provided at each detection hole 7121. The contact 71221 of the contact sensor 7122 is arranged across the top of the detection hole, which can accurately detect the height of the pole, thereby judging the alignment of the pole and the pile hole of the battery box cover. The liftable cover detection mounting seat and the cover detection positioning plate located thereon in the cover detection mechanism, as well as the setting of the detection holes and the contact sensor, enable the device to perform high-precision cover detection on the pole; the picking unit is arranged on a rack near the picking station, and is used to move unqualified batteries 2 detected by the cover detection unit out of the conveyor belt 1.

[0077] The bottom opening of the correction positioning window 32111 has a first guide slope 321111, which helps the battery to be more easily aligned with the correction positioning window when placed in the correction station, thereby reducing the alignment difficulty of the operator when placing the battery and improving operational efficiency.

[0078] In order to make it easier to align and position the battery when placing it into the cover closing detection positioning window, a second guide slope 71111 is provided at the bottom opening of the cover closing detection positioning window 7111. The guide slope can guide the mouth of the battery to enter the window smoothly, reducing the difficulty and error of operation.

[0079] The correction port 3221 is opened on the side of the correction plate 322 and is vertically penetrated through the correction plate 322. The diameter of the correction port 3221 gradually decreases from the opening on the side of the correction plate 322 to the inside to form a second guide slope 32211, so that the correction port can gradually guide and adapt to the shape of the pole when contacting the pole, which helps to more accurately position and correct the pole.

[0080] In order to protect the pole base from damage and ensure that the support block can stably support the pole, a third guide slope 32221 is provided on the side of the support block 3222 facing the base of the pole 4. The support block can more easily adapt to the shape of the pole base when contacting and supporting it, reducing friction and damage caused by hard contact.

[0081] The correction mounting seat 321 is provided with a first driving mechanism 3212 for driving the horizontal movement of the correction plate 322. The frame 0 is also provided with a vertical first guide rail 5, and the correction mounting seat 321 slides with the first guide rail 5. The frame 0 is also provided with a second driving mechanism 3213 for driving the correction mounting seat 321 to move up and down;

[0082] A second vertical guide rail 8 is provided on the frame 0, and the cover closing detection mounting seat 71 slides with the second guide rail 8. The frame 0 is also provided with a fourth driving mechanism 713 for driving the cover closing detection mounting seat 71 to rise and fall, allowing the cover closing detection mounting seat to rise and fall freely in the vertical direction, thereby adapting to batteries of different heights or performing detections at different heights.

[0083] The applicable scope of the correction device and the cover closing detection device is increased, so that different types of batteries can be processed, thereby improving the versatility and flexibility of the equipment.

[0084] Specifically, the correction and positioning mechanism 31 includes: a first sensor 311 for detecting the battery 2; a first guide limit baffle 312 provided on the frame 0 and located on both sides of the conveyor belt 1; a first clamping arm 313 located on the frame 0 on one side of the conveyor belt 1 and capable of horizontal movement to cooperate with the first guide limit baffle 312 on the opposite side to clamp and position the battery 2; and a third driving mechanism 314 provided on the frame 0 and located on the frame 0 on one side of the conveyor belt 1 for driving the first clamping arm to move horizontally.

[0085] To precisely position the battery at the lid closing inspection station, the lid closing detection and positioning mechanism 6 is designed to include: a second sensor 61 for detecting the battery 2; second guide and limit baffles 62, located on the frame 0 and on both sides of the conveyor belt 1; a second clamping arm 63, located on one side of the conveyor belt 1 and capable of horizontal movement, to cooperate with the second guide and limit baffle 62 on the opposite side to clamp and position the battery 2; and a fifth drive mechanism 64, located on the frame 0 and on one side of the conveyor belt 1, for driving the second clamping arm 63 to move horizontally. The second sensor detects the presence and position of the battery; the second guide and limit baffles limit the lateral movement of the battery; and the second clamping arm cooperates with the second guide and limit baffles to clamp and position the battery.

[0086] The driving mechanism includes a driving cylinder for driving, and the lifting and lowering of the mounting seat and the horizontal movement of the clamping arm are achieved through the driving cylinder.

[0087] Specifically, the selection unit includes: a third sensor 9 for detecting the battery 2; a block 10 for blocking the battery 2; a sixth drive mechanism 11 provided on the frame 0 on one side of the conveyor belt 1 for horizontally driving the block 10 to extend above the conveyor belt 1; a push plate 12 provided on the upstream end of the block 10 for removing unqualified batteries blocked by the block 10 from the conveyor belt 1; and a seventh drive mechanism 121 provided on the frame 0 on one side of the conveyor belt 1 for horizontally driving the push plate 12. The selection unit can automatically identify and remove unqualified batteries. The third sensor is used to detect the qualified status of the battery, the block is used to block unqualified batteries, and the push plate removes the unqualified batteries from the conveyor belt, thus realizing automated detection and screening.

[0088] The present invention also provides a method for battery pole calibration and cover detection, which uses the above-mentioned battery pole calibration and cover detection system to perform battery pole calibration and cover detection. The specific steps are as follows:

[0089] When the system of the present invention is in use, semi-finished batteries (including battery cells and battery packs) are conveyed onto a conveyor belt and moved from the upstream end to the downstream end;

[0090] Pole correction:

[0091] When the battery 2 is conveyed to the vicinity of the correction station via the conveyor belt 1, the first sensor 311 detects the arrival of the battery 2 and sends a signal to the control system; after receiving the signal, the control system starts the third drive mechanism 314, drives the first clamping arm 313 to move horizontally, and cooperates with the first guide limit baffle 312 on the opposite side to clamp and position the battery 2 on the correction station; the coordinated use of the first guide limit baffle 312 and the first clamping arm 313 ensures the precise positioning of the battery 2 on the correction station and reduces the need for manual alignment; after the battery 2 is positioned, the second drive mechanism 3213 is started, driving the correction mounting seat 321 to descend along the first guide rail 5, so that the correction positioning window 32111 on the correction positioning plate 3211 is limitedly cooperated with the battery slot portion of the battery 2. Next, the first drive mechanism 3212 is started, driving the two correction plates 322 to move horizontally relative to each other until the correction port 3221 corresponds to the position of the two poles 4 of the battery; during the correction process, the support block 3222 extends under the base of the pole 4 to support the pole; after the pole correction is completed, the first drive mechanism 3212 and the second drive mechanism 3213 respectively drive the correction plate 322 and the correction mounting seat 321 to reset; the first clamping arm 313 is released under the drive of the third drive mechanism 314, and the battery 2 is released; the conveyor belt 1 continues to run, and conveys the corrected battery 2 to the next process.

[0092] Lid detection:

[0093] When the battery reaches the cover-closed inspection station, the second sensor 61 detects the presence and position of the battery 2 and sends a signal to the control system. The control system activates the fifth drive mechanism 64, driving the second clamping arm 63 to move horizontally, cooperating with the second guide limit baffle 62 to clamp and position the battery 2, ensuring that the battery is accurately positioned at the cover-closed inspection station.

[0094] The control system activates the fourth drive mechanism 713, driving the lid closing detection mounting base 71 downward, so that the lid closing detection positioning plate 711 and the lid closing detection plate 712 approach the battery. The opening of the battery smoothly enters the lid closing detection positioning window 7111. The presence of the fourth guide slope 71111 makes alignment and positioning easier.

[0095] The pole 4 extends into the detection hole 7121, and the contact 71221 of the contact sensor 7122 is arranged across the top of the detection hole to accurately detect the height of the pole;

[0096] The control system determines the alignment of the pole and the hole of the battery box cover according to the signal fed back by the contact sensor 7122. If it is qualified, it will continue to transport. If it is unqualified, it will send a signal to the selection unit.

[0097] When the third sensor 9 receives a signal indicating that the battery is unqualified, the control system activates the sixth driving mechanism 11, and the driving block 10 extends above the conveyor belt 1 to block the unqualified batteries.

[0098] At the same time, the control system starts the seventh driving mechanism 121 to drive the push plate 12 to move horizontally, and remove the unqualified batteries blocked by the block 10 from the conveyor belt, thereby realizing automatic screening of unqualified batteries.

Claims

1. A system for calibrating and detecting battery poles, wherein the battery to be processed is a semi-finished product including a battery tank and a pole group. The pole group is placed in the tank and the busbar and the pole are cast-welded. The pole includes a positive pole and a negative pole, and the pole is connected to the side of the busbar through the side of the pole base. The system is characterized by: The battery pole correction and cover detection system includes a battery pole correction device and a battery pole cover detection device. frame; A conveyor belt is provided on the frame and is used to convey the batteries. The conveyor belt is provided with a correction station, a testing station and a selection station in sequence from the upstream end to the downstream end; The battery pole correction device includes a correction unit, The correction unit is arranged on the frame near the correction station, and includes a correction positioning mechanism for positioning the battery at the correction station, and a mold correction mechanism for performing mold correction on the pole, the mold correction mechanism includes a liftable correction mounting seat, the correction mounting seat is provided with a correction positioning plate located above the correction station, and the correction positioning plate is provided with a correction positioning window for cooperating with the mouth of the battery slot; the correction mounting seat is also provided with a pair of correction plates that can move horizontally relative to each other, the two correction plates are staggered up and down, and correction openings are provided on the side surfaces of the opposite sides of the two correction plates corresponding to the positions of the two poles of the battery during detection; one of the correction plates is also provided with a support block that extends under the pole base to support the pole during correction; The battery terminal cover detection device includes a cover detection unit and a selection unit. The cover closing detection unit is arranged on the frame near the cover closing detection station, and includes a cover closing detection positioning mechanism for positioning the battery at the cover closing detection station, and a cover closing detection mechanism for performing cover closing detection on the pole, the cover closing detection mechanism includes a liftable cover closing detection mounting seat, the cover closing detection mounting seat is provided with a cover closing detection positioning plate located above the cover closing detection station, the cover closing detection positioning plate is provided with a cover closing detection positioning window for cooperating with the mouth limit of the battery; the cover closing detection mounting seat is also provided with a cover closing detection plate, the position of the cover closing detection plate above the cover closing detection positioning window is provided with two detection holes for two poles to extend into during detection, and a contact sensor for detecting the height of the pole is provided at each detection hole corresponding to the detection hole on the cover closing detection plate, and the contact of the contact sensor is arranged across above the detection hole; The picking unit is provided on the frame near the picking station and is used to remove unqualified batteries detected by the cover closing detection unit from the conveyor belt; The conveyor belt is divided into three independent sub-conveyor belts, and each sub-conveyor belt is connected in sequence; Among them, the sub-conveyor belt located upstream is provided with the correction station; the sub-conveyor belt located in the middle is provided with the detection station; and the sub-conveyor belt located downstream is provided with the selection station.

2. The battery pole correction and cover detection system according to claim 1, characterized in that: The bottom opening of the correction positioning window is provided with a first guiding inclined surface; The bottom opening of the cover closing detection positioning window is provided with a fourth guiding inclined surface.

3. The battery pole correction and cover detection system according to claim 1, characterized in that: The correction port is opened at the side of the correction plate and is vertically penetrated through the correction plate. The diameter of the correction port gradually decreases from the side opening of the correction plate to the inside to form a second guide slope.

4. The battery pole correction and cover detection system according to claim 1, characterized in that: A third guiding inclined surface is provided on a side of the support block facing the pole base.

5. The battery pole correction and cover detection system according to claim 1, characterized in that: The correction mounting seat is provided with a first driving mechanism for driving the correction plate to move horizontally.

6. The battery pole correction and cover detection system according to claim 1, characterized in that: The frame is provided with a vertical first guide rail, the correction mounting seat is in sliding cooperation with the first guide rail, and the frame is also provided with a second driving mechanism for driving the correction mounting seat to rise and fall; The frame is provided with a second vertical guide rail, and the cover closing detection mounting seat is slidably matched with the second guide rail. The frame is also provided with a fourth driving mechanism for driving the cover closing detection mounting seat to rise and fall.

7. The battery pole correction and cover detection system according to claim 1, characterized in that: The correction and positioning mechanism comprises: a first sensor for detecting a battery; A first guide limit baffle provided on the frame and located on both sides of the conveyor belt; A first clamping arm located on a frame on one side of the conveyor belt and capable of horizontally moving to cooperate with the first guide limit baffle on the opposite side to clamp and position the battery; A third driving mechanism is provided on the frame and located on the frame on one side of the conveyor belt, and is used to drive the first clamping arm to move horizontally.

8. The battery pole correction and cover detection system according to claim 1, characterized in that: The cover closing detection and positioning mechanism includes: a second sensor for detecting the battery; A second guide limit baffle provided on the frame and located on both sides of the conveyor belt; a second clamping arm located on one side of the conveyor belt and capable of horizontally moving so as to cooperate with the second guide limit baffle on the opposite side to clamp and position the battery; A fifth driving mechanism is provided on the frame and located on one side of the conveyor belt, and is used for driving the second clamping arm to move horizontally.

9. The battery pole correction and cover detection system according to claim 1, characterized in that: The selection unit includes: a third sensor for detecting the battery; a block for blocking the battery; a sixth driving mechanism provided on a frame on one side of the conveyor belt and used for horizontally driving the stopper to extend above the conveyor belt; a push plate provided at the upstream end of the stopper and used for moving unqualified batteries stopped by the stopper out of the conveyor belt; A seventh driving mechanism is provided on the frame on one side of the conveyor belt and is used for horizontally driving the push plate.

10. A method for battery pole calibration and cover detection, characterized in that: The battery pole correction and cover closing detection system according to any one of claims 1 to 9 is used to perform battery pole correction and cover closing detection.

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