Storage battery post correction device

Abstract

The utility model provides a storage battery post correction device, which mainly comprises a conveying belt, a correction station, a power supply device, a power supply device, a power supply device, a power supply device, a power supply device and a power supply device, the correction unit is arranged on the rack near the correction station and comprises a correction positioning mechanism used for positioning the storage battery on the correction station and a mold closing correction mechanism used for performing mold closing correction on the pole, the mold closing correction mechanism comprises a liftable correction mounting seat, a correction positioning plate located above the correction station is arranged on the correction mounting seat, and the correction positioning plate is located above the correction station. The correcting and positioning plate is provided with a correcting and positioning window which is in limiting fit with the opening part of the battery jar; a pair of correction plates capable of relatively and horizontally moving is further arranged on the correction mounting seat, the two correction plates are arranged in an up-down staggered manner, and correction ports are formed in the opposite side surfaces of the two correction plates and correspond to the positions of two pole columns of the storage battery during detection; wherein one correction plate is also provided with a supporting block which extends into the lower surface of the pole base to support the pole during correction.

Description

Technical Field

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

[0002] In recent years, with the deepening implementation of the Industry 4.0 strategy, the battery industry has accelerated its transformation towards intelligent manufacturing. The industry's automation production line adoption rate has increased significantly annually. Through the introduction of robotic welding systems, AGV logistics systems, and MES production management systems, significant improvements have been achieved in personnel allocation, production efficiency, and quality consistency (product qualification rate has increased to over 99%). This transformation has effectively addressed the dual pressures of rising labor costs and increasingly stringent environmental standards (the "Lead-Acid Battery Industry Standard Conditions" requires a 15% reduction in energy consumption).

[0003] However, in the critical process of battery assembly lines—the alignment of the terminal posts after electrode group casting and welding—there are still technical bottlenecks hindering the industry's development. In traditional processes, the welded electrode groups need to be aligned using mechanical fixtures to ensure precise alignment with the battery cover's terminal holes. Current mainstream equipment adopts a "vision positioning + servo pressing" technical approach, but in actual operation, the following prominent problems have been exposed:

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

[0005] Frequent defects in pile foundations: Industry survey data shows that when the deviation between the pole post and the center of the pile hole exceeds 0.4mm, mechanical interference will occur during the assembly of the cover plate, causing the outer wall of the pole post to scrape against the inner wall of the pile hole (contact stress > 25MPa). This abnormal contact will not only cause damage to the coating on the surface of the pole post (peeling area > 3mm), but also... 2 Furthermore, uneven filling of the sealant can lead to irreversible blockage defects (the industry average defect rate is 3‰), resulting in unmaintainable production losses.

[0006] Lagging process control: Existing calibration systems mostly adopt open-loop control mode and lack real-time force feedback mechanism. When pole misalignment occurs, the pressing mechanism still performs the action according to the preset path, which can easily cause overpressure damage (the risk of plastic shell rupture increases by 3 times when the pressure peak is >800N). Manual re-inspection (sampling rate <5%) is difficult to effectively identify hidden defects, causing problematic batteries to flow into subsequent processes.

[0007] The industry has tried various solutions to address this problem: ① Increasing the resolution of the vision system to the 10μm level, but this increased hardware costs by 2.3 times and made it susceptible to dust interference in the workshop; ② Using elastic compensation fixtures, which could absorb some deformation errors, but led to longer production line cycle times; ③ Adding manual calibration stations, but this went against the original intention of automation upgrades. None of these solutions fundamentally solved the problem of balancing accuracy and efficiency.

[0008] Therefore, there is an urgent need to develop a new type of electrode alignment device to promote the intelligent manufacturing upgrade of the battery industry. Utility Model Content

[0009] To address the shortcomings of existing technologies, this invention provides a battery terminal alignment device to improve the accuracy of battery terminal alignment during the battery assembly and welding process.

[0010] A battery terminal alignment 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 terminal is connected to the side of the busbar through the side of the terminal base. The battery terminal alignment device includes: a frame; a conveyor belt disposed on the frame for conveying the battery, and an alignment station on the conveyor belt; and an alignment unit disposed on the frame near the alignment station, including an alignment positioning mechanism for positioning the battery at the alignment station and a clamping mechanism for aligning the terminal. The mold calibration mechanism includes a liftable calibration mounting base. The calibration mounting base is provided with a calibration positioning plate located above the calibration station. The calibration positioning plate is provided with a calibration positioning window for limiting and cooperating with the opening of the battery slot. The calibration mounting base is also provided with a pair of calibration plates that can move horizontally relative to each other. The two calibration plates are staggered vertically. On the opposite side of the two calibration plates, there are calibration ports corresponding to the positions of the two terminals of the battery during testing. One of the calibration plates is also provided with a support block that extends under the terminal base during calibration to support the terminal.

[0011] By aligning the positioning window with the limiting mechanism at the battery slot, precise positioning of the battery at the calibration station can be ensured. This design reduces the need for manual alignment, increases the automation of the calibration process, thereby accelerating the calibration speed and improving calibration accuracy.

[0012] The support block extends under the pole base during calibration to provide support, ensuring stable support for the pole during the calibration process and preventing inaccurate calibration due to pole shaking or misalignment.

[0013] Furthermore, the bottom opening of the calibration positioning window has a first guide slope, which can improve the automation and ease of operation of the calibration process and reduce operational errors and the number of repeated calibrations.

[0014] Furthermore, the calibration port is opened on the side of the calibration plate and is vertically inserted through the calibration plate. The diameter of the calibration port gradually decreases from the opening on the side of the calibration plate to the inward side, thereby forming a second guide slope, which improves the calibration accuracy, reduces damage to the pole due to improper calibration, and also helps to improve the calibration efficiency.

[0015] Furthermore, the support block has a third guide slope on the side 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.

[0016] Furthermore, the calibration mounting base is provided with a first drive mechanism for driving the calibration plate to move horizontally.

[0017] Furthermore, the frame is provided with a vertical first guide rail, and the calibration mounting base slides in cooperation with the first guide rail. The frame is also provided with a second drive mechanism for driving the calibration mounting base to rise and fall. This increases the applicability of the calibration device, enabling it to handle different types of batteries and improving the versatility and flexibility of the equipment.

[0018] Both the first drive mechanism and the second drive mechanism include a drive cylinder for driving.

[0019] Furthermore, the calibration and positioning mechanism includes:

[0020] Sensors used to detect batteries;

[0021] Guide limiting baffles are installed on the frame and located on both sides of the conveyor belt;

[0022] A clamping arm located on one side of the conveyor belt, which can move horizontally to cooperate with the guide limiting baffle on the opposite side to clamp and position the battery;

[0023] A third drive mechanism, mounted on the frame and located on one side of the conveyor belt, for driving the clamping arm to move horizontally.

[0024] The aforementioned calibration and positioning mechanism can improve the accuracy and stability of calibration and positioning, providing a reliable guarantee for subsequent calibration processes. At the same time, this design also helps to improve the automation level and ease of operation of the entire calibration device.

[0025] The beneficial effects of this utility model are:

[0026] This invention employs a mold-closing correction structure to improve the accuracy of battery terminal alignment, ensuring high precision in battery transport, positioning, and limiting. The battery terminal alignment device, through the setting of a correction positioning window with limiting cooperation and support blocks, significantly improves the accuracy and efficiency of alignment, enhances the applicability of the equipment, protects the terminals and battery case, and improves production safety. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the battery terminal alignment device of this utility model;

[0028] Figure 2 This is a schematic diagram of the mold closing and correction mechanism of this utility model;

[0029] Figure 3 This is a schematic diagram of the calibration plate of this utility model;

[0030] Figure 4 This is a bottom view of the correction plate of this utility model;

[0031] Figure 5 This is a side view of the correction plate of this utility model;

[0032] Figure 6 This is a schematic diagram showing the limiting fit between the calibration and positioning window and the battery slot of this utility model.

[0033] The markings in the diagram are: 1-conveyor belt, 2-battery, 3-calibration unit, 31-calibration positioning mechanism, 311-sensor, 312-guide limit baffle, 313-clamping arm, 314-third drive mechanism, 32-mold closing calibration mechanism, 321-calibration mounting base, 3212-first drive mechanism, 3213-second drive mechanism, 3211-calibration positioning plate, 32111-calibration positioning window, 321111-first guide slope, 322-calibration plate, 3221-calibration port, 32211-second guide slope, 3222-support block, 32221-third guide slope, 4-pole column, 5-first guide rail. Detailed Implementation

[0034] Depend on Figure 1-6As shown, this utility model provides a battery terminal alignment 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 in the case and a busbar and terminals are cast and welded together. Each terminal includes a positive terminal and a negative terminal. The terminal is connected to the side of the busbar through the side of the terminal base. The battery terminal alignment device includes: a frame; a conveyor belt 1, which is mounted on the frame and used to transport the battery 2. The conveyor belt 1 is provided with an alignment station; and an alignment unit 3, which is mounted on the frame near the alignment station. The unit includes an alignment positioning mechanism 31 for positioning the battery 2 at the alignment station and a mold closing alignment mechanism 32 for performing mold closing alignment on the terminal 4. The mold closing alignment mechanism 32 includes a liftable alignment mounting base 321. The alignment mounting base 321 is provided with an alignment positioning plate 3211 located above the alignment station. The alignment positioning plate is provided with a... The calibration positioning window 32111, which is matched with the limiting position of the opening of the battery compartment, ensures the precise positioning of the battery at the calibration station, reduces the need for manual alignment, and improves calibration accuracy. The calibration mounting base 321 is also equipped with a pair of calibration plates 322 that can move horizontally relative to each other. The two calibration plates 322 are staggered vertically, and calibration ports 3221 are provided on the opposite side of the two calibration plates 322 corresponding to the positions of the two terminals 4 of the battery during testing. One of the calibration plates 322 is also equipped with a support block 3222 that extends under the base of the terminal 4 during calibration to support the terminal 4. The support block extends under the base of the terminal during calibration to provide support, so that the terminal can be stably supported during the calibration process, avoiding inaccurate calibration caused by the terminal shaking or misalignment.

[0035] The bottom opening of the calibration positioning window 32111 has a first guide slope 321111, which helps the battery to be more easily aligned with the calibration positioning window when it is placed in the calibration station. This reduces the difficulty for the operator in aligning the battery and improves the efficiency of operation.

[0036] The calibration port 3221 is opened on the side of the calibration plate 322 and is vertically inserted through the calibration plate 322. The diameter of the calibration port 3221 gradually decreases from the side opening of the calibration plate 322 to the inside, thereby forming a second guide slope 32211. This allows the calibration port to gradually guide and adapt to the shape of the pole when it contacts the pole, which helps to more accurately position and calibrate the pole.

[0037] In order to protect the pole base from damage and ensure that the support block can stably support the pole, the support block 3222 has a third guide slope 32221 on the side facing the pole base 4. When the support block contacts and supports the pole base, it can more easily adapt to its shape and reduce friction and damage caused by hard contact.

[0038] The calibration mounting base 321 is equipped with a first drive mechanism 3212 for driving the calibration plate 322 to move horizontally. The frame is also equipped with a first vertical guide rail 5, with the calibration mounting base 321 slidingly engaging with the first guide rail 5. The frame is also equipped with a second drive mechanism 3213 for driving the calibration mounting base 321 to move up and down. Both the first and second drive mechanisms include drive cylinders for driving.

[0039] Specifically, the calibration and positioning mechanism 31 includes: a sensor 311 for detecting the battery 2; guide limiting baffles 312 mounted on the frame and located on both sides of the conveyor belt 1; a clamping arm 313 located on one side of the frame and movable horizontally to cooperate with the guide limiting baffle 312 on the opposite side to clamp and position the battery 2; and a third drive mechanism 314 mounted on the frame and located on one side of the conveyor belt 1 for driving the clamping arm to move horizontally.

[0040] In use, when the battery 2 is conveyed to the vicinity of the calibration station via the conveyor belt 1, the sensor 311 detects the arrival of the battery 2 and sends a signal to the control system. After receiving the signal, the control system activates the third drive mechanism 314, which drives the clamping arm 313 to move horizontally and cooperate with the guide limit baffle 312 on the opposite side to clamp and position the battery 2 at the calibration station. The cooperation between the guide limit baffle 312 and the clamping arm 313 ensures the accurate positioning of the battery 2 at the calibration station, reducing the need for manual alignment. After the battery 2 is positioned, the second drive mechanism 3213 is activated, driving the calibration mounting base 321 to descend along the first guide rail 5, so that the calibration positioning window 32111 on the calibration positioning plate 3211 is limited and cooperates with the battery slot of the battery 2. Next, the first drive mechanism 3212 is activated, driving the two calibration plates 322 to move horizontally relative to each other until the calibration port 3221 corresponds to the two terminals 4 of the battery. During the calibration process, the support block 3222 extends under the base of the terminal 4 to support the terminal. After the terminal is calibrated, the first drive mechanism 3212 and the second drive mechanism 3213 respectively drive the calibration plate 322 and the calibration mounting base 321 to reset. The 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, transporting the calibrated battery 2 to the next process.

Claims

1. A battery terminal alignment 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 terminals, the terminals including a positive terminal and a negative terminal, the terminals being connected to the side of the busbar via the side of the terminal base, characterized in that, The battery terminal alignment device includes: frame; A conveyor belt, mounted on the frame, is used to transport the storage battery, and the conveyor belt is equipped with a calibration station; The calibration unit, located on the frame near the calibration station, includes a calibration positioning mechanism for positioning the battery at the calibration station and a mold closing calibration mechanism for calibrating the terminals. The mold closing calibration mechanism includes a liftable calibration mounting base. The calibration mounting base has a calibration positioning plate located above the calibration station. The calibration positioning plate has a calibration positioning window for limiting and cooperating with the opening of the battery slot. The calibration mounting base also has a pair of relatively horizontally movable calibration plates. The two calibration plates are staggered vertically. Calibration ports are provided on opposite sides of the two calibration plates corresponding to the positions of the two terminals of the battery during testing. One of the calibration plates also has a support block that extends under the terminal base during calibration to support the terminal.

2. The battery terminal alignment device according to claim 1, characterized in that, The bottom opening of the calibration positioning window has a first guide slope.

3. The battery terminal alignment device according to claim 1, characterized in that, The calibration port is an opening on the side of the calibration plate and is vertically penetrating the calibration plate. The diameter of the calibration port gradually decreases from the opening on the side of the calibration plate inward to form a second guide slope.

4. The battery terminal alignment device according to claim 1, characterized in that, The support block has a third guide slope on the side facing the pole base.

5. The battery terminal alignment device according to claim 1, characterized in that, The calibration mounting base is provided with a first drive mechanism for driving the calibration plate to move horizontally.

6. The battery terminal alignment device according to claim 1, characterized in that, The frame is provided with a vertical first guide rail, and the calibration mounting base is slidably engaged with the first guide rail. The frame is also provided with a second drive mechanism for driving the calibration mounting base to rise and fall.

7. The battery terminal alignment device according to claim 1, characterized in that, The calibration and positioning mechanism includes: Sensors used to detect batteries; Guide limiting baffles are installed on the frame and located on both sides of the conveyor belt; A clamping arm located on one side of the conveyor belt, which can move horizontally to cooperate with the guide limiting baffle on the opposite side to clamp and position the battery; A third drive mechanism, mounted on the frame and located on one side of the conveyor belt, for driving the clamping arm to move horizontally.

Images