Storage battery pole cover closing detection device

Abstract

The utility model provides a cover closing detection device for storage battery poles. The cover closing detection device comprises a rack, a conveying belt, a cover closing detection unit and a selection unit, the conveying belt is used for conveying a storage battery to be processed, and a cover closing detection station and a selecting station are arranged on the conveying belt. The cover closing detection unit comprises a cover closing detection positioning mechanism and a cover closing detection mechanism, a storage battery is accurately positioned through a guide limiting baffle, a clamping arm and a first sensor, and high-precision cover closing detection is performed on a pole by utilizing a liftable cover closing detection mounting seat, a cover closing detection positioning plate, a detection hole and a contact sensor. And the picking unit is used for automatically removing unqualified storage batteries through a second sensor, a stop block, a push plate and a driving mechanism. And the conveying belt is divided into two independent sub-conveying belts which are respectively provided with a cover closing detection station and a selection station. The device is simple in structure and easy to maintain, improves the detection efficiency and accuracy, effectively reduces the pile suffocation rate of the pole plate box cover battery in the assembly line, and reduces the loss in the production process.

Description

Technical Field

[0001] This utility model relates to the field of storage battery manufacturing technology, specifically to a storage battery terminal cover detection device. Background Technology

[0002] In recent years, the battery industry has ushered in unprecedented development opportunities driven by both technological advancements and market demand. With the deepening implementation of Industry 4.0, automated battery production lines have been rapidly adopted within the industry, becoming a key driver of transformation and upgrading. This transformation has not only significantly improved production efficiency by streamlining and optimizing production processes through highly integrated automated equipment, but also drastically reduced reliance on human resources, effectively alleviating the pressure from rising labor costs. Simultaneously, the application of automated production lines has also promoted a comprehensive reduction in production costs, including material losses, energy consumption, and management expenses, bringing significant economic benefits to battery companies.

[0003] However, the rapid rollout of automated production lines has also presented the battery industry with several technical challenges. Particularly in the critical process of battery assembly lines—the alignment of the terminal posts after electrode group casting and welding—the alignment accuracy under current technology still needs improvement. Due to factors such as thermal deformation during the casting and welding process and fixture positioning errors, the alignment accuracy between the terminal posts and the battery box cover holes often fails to meet design requirements, resulting in a persistently high rate of battery box cover blockage, averaging around 0.3%. This problem not only causes significant non-maintainable production losses and increases the cost burden on enterprises, but also seriously affects the yield and quality stability of batteries, reducing the market competitiveness of the products.

[0004] To reduce and eliminate battery dead battery rates in assembly lines and minimize production losses, the battery industry has been actively exploring effective solutions. However, most existing improvement solutions have limitations. For example, while increasing the resolution of the vision system can improve positioning accuracy to some extent, the hardware cost is high and it is easily affected by the workshop environment. Using elastic compensation fixtures can absorb some deformation errors, but it often leads to longer production line cycles and affects production efficiency. Adding manual calibration stations goes against the original intention of automation upgrades, not only increasing labor costs but also potentially introducing human error.

[0005] Therefore, how to reduce the battery box cover failure rate while ensuring production efficiency has become a pressing technical challenge for the battery industry. This requires not only increased investment in technological research and development by enterprises, but also the joint efforts of all parties inside and outside the industry to jointly promote the development of the battery industry towards higher quality and higher efficiency. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a battery terminal cover detection device to reduce the battery dead battery rate in assembly lines and reduce production process losses.

[0007] A battery terminal cap-closing detection device is disclosed. The battery to be processed is a semi-finished product including a battery case and a terminal group. The terminal group is inserted into the case and a busbar is cast and welded to the terminal. The terminal includes a positive terminal and a negative terminal. The battery terminal cap-closing detection device includes: a frame; a conveyor belt disposed on the frame for conveying the battery, the conveyor belt having a cap-closing detection station and a sorting station sequentially from upstream to downstream; and a cap-closing detection unit disposed on the frame near the cap-closing detection station, including a cap-closing detection positioning mechanism for positioning the battery at the cap-closing detection station, and a cap-closing detection mechanism for detecting the cap closure of the terminal. The cap-closing detection mechanism includes a liftable cap-closing detection mounting base. The system includes a cover-closing detection positioning plate located above the cover-closing detection station. The cover-closing detection positioning plate has a cover-closing detection positioning window for engaging with the opening of the battery. The cover-closing detection mounting base also includes a cover-closing detection plate. Above the cover-closing detection positioning window, the cover-closing detection plate has two detection holes for each of the two terminals to extend into during detection. Corresponding to each detection hole, the cover-closing detection plate has a contact sensor for detecting the height of the terminal, with the sensor's contact tip spanning across the detection hole. A sorting unit, located on the frame near the sorting station, is used to remove unqualified batteries detected by the cover-closing detection unit from the conveyor belt.

[0008] The battery cover detection and positioning mechanism, through a guide limit baffle and a horizontally movable clamping arm, in conjunction with a first sensor, can accurately position the battery in the battery cover detection station. The mechanism also includes a liftable battery cover detection mounting base and a positioning plate on top of it, along with detection holes and contact sensors, enabling the device to perform high-precision battery cover detection on the terminals. The contact sensor's contacts are positioned across the detection hole, accurately detecting the height of the terminal and thus determining the alignment of the terminal with the battery box cover hole.

[0009] Furthermore, the bottom opening of the cover-closing detection and positioning window has a first guide slope, which helps the battery to be more easily aligned with the window when it is placed in the cover-closing detection station. Even if there is a certain positional deviation, it can be automatically corrected by the guidance of the slope, thus improving the efficiency and accuracy of positioning.

[0010] Furthermore, the frame is provided with a vertical first guide rail, the cover detection mounting base slides with the first guide rail, and the frame is also provided with a first drive mechanism for driving the cover detection mounting base to rise and fall.

[0011] Furthermore, the cover detection and positioning mechanism includes: a first sensor for detecting the battery; guide limiting baffles disposed on the frame and located on both sides of the conveyor belt; a clamping arm located on one side of the conveyor belt and movable horizontally to cooperate with the guide limiting baffle on the opposite side to clamp and position the battery; and a second drive mechanism disposed on the frame and located on one side of the conveyor belt for driving the clamping arm to move horizontally.

[0012] Both the first and second drive mechanisms include drive cylinders for driving, which enable the lifting and lowering of the cover detection mounting base and the horizontal movement of the clamping arm.

[0013] Furthermore, the sorting unit includes: a second sensor for detecting the battery; a stop for blocking the battery; a third drive mechanism mounted on a frame on one side of the conveyor belt for horizontally driving the stop to extend above the conveyor belt; a push plate mounted on the upstream end of the stop for removing the defective battery blocked by the stop from the conveyor belt; and a fourth drive mechanism mounted on a frame on one side of the conveyor belt for horizontally driving the push plate.

[0014] The arrival of the battery is detected by a second sensor, and a third drive mechanism drives a stop block to extend above the conveyor belt, preventing the defective battery from moving further. The push plate design removes the defective battery blocked by the stop block from the conveyor belt, realizing the automatic collection and processing of defective products and improving the automation level of the production line.

[0015] Furthermore, the conveyor belt is divided into two independent sub-conveyor belts, which are connected sequentially; wherein, the upstream sub-conveyor belt is equipped with the cover inspection station; and the downstream sub-conveyor belt is equipped with the sorting station.

[0016] Dividing the conveyor belt into two independent sub-conveyor belts and setting up a cover inspection station and a sorting station on each sub-conveyor belt makes the inspection process clearer and more orderly, and also helps to improve the flexibility and scalability of the production line.

[0017] The beneficial effects of this utility model are:

[0018] The battery terminal cover inspection device provided by this utility model, through a precise positioning mechanism, a high-efficiency inspection mechanism, and an automated sorting unit, achieves accurate inspection of the battery terminal cover closing accuracy and automatic rejection of unqualified products. This device not only improves inspection efficiency and accuracy and reduces the battery dead battery rate on the assembly line, but also reduces production process losses. Furthermore, the device has a simple structure and is easy to maintain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the battery terminal cover detection device of this utility model;

[0020] Figure 2 This is a side view schematic diagram of the battery terminal cover detection device of this utility model;

[0021] Figure 3 This is a schematic diagram of the battery terminal cover detection station and detection unit of this utility model;

[0022] Figure 4 This is a bottom view of the battery terminal cover inspection station and inspection unit of this utility model;

[0023] Figure 5 This is a schematic diagram of the battery terminal cover detection unit of this utility model;

[0024] Figure 6 This is a cross-sectional view of the battery terminal cover detection unit of this utility model.

[0025] The diagram shows the following markings: 1-Conveyor belt, 11-Sub-conveyor belt, 2-Battery, 3-Lid closing detection and positioning mechanism, 31-First sensor, 32-Guide limiting baffle, 33-Clamping arm, 34-Second drive mechanism, 4-Pole post, 5-Lid closing detection mechanism, 51-Lid closing detection mounting base, 511-Lid closing detection positioning plate, 5111-Lid closing detection positioning window, 51111-First guide slope, 512-Lid closing detection plate, 5121-Detection hole, 5122-Contact sensor, 51221-Contact, 513-First drive mechanism, 6-First guide rail, 7-Second sensor, 8-Stop, 9-Third drive mechanism, 10-Push plate, 101-Fourth drive mechanism. Detailed Implementation

[0026] Depend on Figure 1-6As shown, this utility model provides a battery terminal cap-closing detection device. The battery to be processed is a semi-finished product including a battery case and a group of terminals. The group of terminals is placed into the case and the busbar and terminal are cast and welded together. The terminal includes a positive terminal and a negative terminal. The battery terminal cap-closing detection device includes: a frame; a conveyor belt 1, which is set on the frame and is used to transport the battery 2. The conveyor belt has a cap-closing detection station and a sorting station in sequence from the upstream end to the downstream end; a cap-closing detection unit, which is set on the frame near the cap-closing detection station. It includes a cap-closing detection positioning mechanism 3 for positioning the battery at the cap-closing detection station, and a cap-closing detection mechanism 5 for performing cap-closing detection on the terminal 4. The cap-closing detection mechanism 5 includes a liftable cap-closing detection mounting base 51. The cap-closing detection mounting base 51 is provided with a cap-closing detection positioning plate 511 located above the cap-closing detection station. The cover detection positioning plate 511 is provided with a cover detection positioning window 5111 for limiting and cooperating with the opening of the battery 2; the cover detection mounting base 51 is also provided with a cover detection plate 512, and the cover detection plate 512 is provided with two detection holes 5121 for the two terminals 4 to extend into during detection at a position above the cover detection positioning window 5111. The cover detection plate 512 is provided with a contact sensor 5122 for detecting the height of the terminal at each detection hole 5121. The contact 51221 of the contact sensor 5122 is arranged horizontally above the detection hole, which can accurately detect the height of the terminal, thereby judging the alignment of the terminal with the battery box cover hole; the sorting unit is located on the frame near the sorting station, and is used to remove the unqualified batteries 2 detected by the cover detection unit from the conveyor belt 1.

[0027] The lid-closing detection mechanism includes a liftable lid-closing detection mounting base and a lid-closing detection positioning plate located on it, as well as detection holes and contact sensors, enabling the device to perform high-precision lid-closing detection on the pole.

[0028] To make it easier to align and position the battery when it is placed into the closed detection and positioning window, the bottom opening of the closed detection and positioning window 5111 has a first guide slope 51111. The guide slope can guide the opening of the battery smoothly into the window, reducing the difficulty of operation and errors.

[0029] The frame is provided with a vertical first guide rail 6, and the cover detection mounting base 51 is slidably engaged with the first guide rail 6. The frame is also provided with a first drive mechanism 513 for driving the cover detection mounting base 51 to rise and fall, allowing the cover detection mounting base to rise and fall freely in the vertical direction, so as to adapt to batteries of different heights or to perform detection at different heights.

[0030] The precise positioning of the battery at the battery cover detection station is achieved through a battery cover detection and positioning mechanism 3, which includes: a first sensor 31 for detecting the battery 2; guide and limiting baffles 32 mounted on the frame and located on both sides of the conveyor belt 1; a clamping arm 33 located on one side of the conveyor belt 1, capable of horizontal movement to cooperate with the guide and limiting baffles 32 on the opposite side to clamp and position the battery 2; and a second drive mechanism 34 mounted on the frame and located on one side of the conveyor belt 1 to drive the clamping arm 33 to move horizontally. The first sensor detects the presence and position of the battery, the guide and limiting baffles restrict the lateral movement of the battery, and the clamping arm cooperates with the guide and limiting baffles to clamp and position the battery.

[0031] Both the first and second drive mechanisms include drive cylinders for driving, which enable the lifting and lowering of the cover detection mounting base and the horizontal movement of the clamping arm.

[0032] Specifically, the sorting unit includes: a second sensor 7 for detecting the battery; a stop 8 for blocking the battery 2; a third drive mechanism 9 mounted on a frame on one side of the conveyor belt 1 for horizontally driving the stop 8 to extend above the conveyor belt 1; a push plate 10 mounted upstream of the stop 8 for removing unqualified batteries blocked by the stop 8 from the conveyor belt 1; and a fourth drive mechanism 101 mounted on a frame on one side of the conveyor belt 1 for horizontally driving the push plate 10. The sorting unit can automatically identify and remove unqualified batteries. The second sensor is used to detect the qualified status of the battery, the stop is used to block unqualified batteries, and the push plate removes the unqualified batteries from the conveyor belt, realizing automated detection and sorting.

[0033] The conveyor belt 1 is divided into two independent sub-conveyor belts 11, which are connected sequentially. The upstream sub-conveyor belt 11 is equipped with a cover inspection station, and the downstream sub-conveyor belt 11 is equipped with a sorting station. The batteries can be processed independently at different stations, which improves the flexibility and efficiency of the production line.

[0034] In use, the semi-finished battery (including the battery case and electrode group) is transported onto the conveyor belt and moves from the upstream end to the downstream end. When the battery reaches the cover detection station, the first sensor 31 detects the presence and position of the battery and sends a signal to the control system. The control system starts the second drive mechanism 34, which drives the clamping arm 33 to move horizontally and cooperates with the guide limit baffle 32 to clamp and position the battery, ensuring that the battery is accurately positioned at the cover detection station.

[0035] The control system activates the first drive mechanism 513, which drives the cover detection mounting base 51 to descend, bringing the cover detection positioning plate 511 and the cover detection plate 512 closer to the battery. The opening of the battery smoothly enters the cover detection positioning window 5111. Due to the presence of the first guide slope 51111, alignment and positioning are easier.

[0036] The electrode post 4 extends into the detection hole 5121, and the contact 51221 of the contact sensor 5122 is positioned across the top of the detection hole to accurately detect the height of the electrode post.

[0037] The control system determines the alignment of the terminal post with the battery box cover hole based on the signal fed back by the contact sensor 5122. If it is qualified, it continues to transport; if it is not qualified, it sends a signal to the selection unit.

[0038] When the second sensor 7 receives a non-compliance signal, the control system activates the third drive mechanism 9, and the drive block 8 extends above the conveyor belt to block the non-compliance battery.

[0039] At the same time, the control system activates the fourth drive mechanism 101, which drives the push plate 10 to move horizontally, removing the unqualified batteries blocked by the stop block 8 from the conveyor belt, thus realizing the automatic screening of unqualified batteries.

Claims

1. A battery terminal cover detection device, wherein the battery to be processed is a semi-finished product including a battery case and a group of terminals, the group of terminals is inserted into the case and a busbar is cast and welded to the terminal, the terminal including a positive terminal and a negative terminal, characterized in that, The battery pole post and cover detection device comprises: a rack; a conveying belt arranged on the rack and used for conveying the batteries, the conveying belt being sequentially provided with a cover detection station and a selection station from an upstream end to a downstream end; a cover detection unit arranged on the rack near the cover detection station, comprising a cover detection positioning mechanism for positioning the battery at the cover detection station, and a cover detection mechanism for cover detection of the pole post, the cover detection mechanism comprising a cover detection mounting seat capable of being lifted, the cover detection mounting seat being provided with a cover detection positioning plate above the cover detection station, the cover detection positioning plate being provided with a cover detection positioning window for limiting cooperation with the mouth of the battery; the cover detection mounting seat is further provided with a cover detection plate, the cover detection plate being provided with two detection holes for the two pole posts to respectively extend into at a position above the cover detection positioning window, and the cover detection plate being provided with a contact sensor for detecting the height of the pole post at a position corresponding to each detection hole, the contact sensor being provided with a contact head arranged above the detection hole; a selection unit arranged on the rack near the selection station and used for removing the unqualified batteries detected by the cover detection unit from the conveying belt.

2. The battery post cover detection device of claim 1, wherein The cover detection positioning window is provided with a first guide inclined surface at the opening of the bottom surface.

3. The battery post cover detection device of claim 1, wherein The rack is provided with a vertical first guide rail, the cover detection mounting seat is in sliding cooperation with the first guide rail, and the rack is further provided with a first driving mechanism for driving the cover detection mounting seat to lift.

4. The battery post cover detection device of claim 1, wherein The cover detection positioning mechanism comprises: a first sensor for detecting the battery; a guide limiting baffle arranged on the rack and located on both sides of the conveying belt; a clamping arm located on one side of the conveying belt and capable of moving horizontally to clamp and position the battery in cooperation with the guide limiting baffle on the opposite side; a second driving mechanism arranged on the rack and located on one side of the conveying belt and used for driving the clamping arm to move horizontally.

5. The battery post cover detection device of claim 1, wherein The selection unit comprises: a second sensor for detecting the battery; a stop block for blocking the battery; a third driving mechanism arranged on the rack on one side of the conveying belt and used for driving the stop block to extend above the conveying belt; a push plate arranged at the upstream end of the stop block and used for removing the unqualified battery stopped by the stop block from the conveying belt; a fourth driving mechanism arranged on the rack on one side of the conveying belt and used for driving the push plate horizontally.

6. The battery post cover detection device of claim 5, wherein The conveying belt is divided into two independent sub-conveying belts, and the sub-conveying belts are sequentially connected; wherein the upstream sub-conveying belt is provided with the cover detection station, and the downstream sub-conveying belt is provided with the selection station.

Images