Multi-station turntable type equipment for laser welding of PACK battery pole posts

Abstract

The application discloses a kind of PACK battery pole laser welding with multi-station turntable equipment, it is related to laser welding technical field.The equipment includes equipment seat and turntable processing platform, and turntable processing platform is sequentially provided with feeding station, welding station, discharging station along circumference.The equipment seat on the side of feeding station is fixed with push type feeding mechanism, its push frame is drivingly connected with turntable processing platform, for pushing the battery to be welded into feeding station;The equipment seat on the side of discharging station is fixed with self-cleaning type discharging mechanism, it includes discharge chute and cleaning type moving component, the driven wheel of cleaning type moving component is drivingly connected with the outer gear ring of turntable processing platform, and cleaning scraping plate is fixed on the outer arc side of its push rod.The application utilizes the rotation power of turntable itself to synchronously drive feeding and discharging action with cleaning function, realizes the automation cyclic operation of battery pole welding, improves production efficiency and solves the problem of welding slag pollution in discharging process.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, and in particular relates to a multi-station rotary table device for laser welding of PACK battery terminals. Background Technology

[0002] Against the backdrop of the rapid development of the new energy industry, PACK batteries, as core energy storage units, have their manufacturing processes directly impacting battery performance and safety. Laser welding of terminal blocks is a critical process in PACK production, requiring equipment with high efficiency, precision, and reliability. However, existing equipment for PACK battery terminal block welding is mostly linear or single-station structures, with loose connections between processes (such as loading, welding, and unloading), low automation levels, severely restricting production efficiency, and involving numerous manual intervention steps, posing a risk of inconsistent welding quality.

[0003] Among the prior art disclosed in the past three years, Chinese patent application with publication number CN121423923A discloses a multi-station linkage railway traction motor end cover welding equipment, including a processing table and a rotary table rotatably mounted above the processing table. Multiple clamps for limiting the housing and end cover are set above the rotary table, and the inner and outer sides are welded by cylinders and welding mechanism. Although the above solution adopts the concept of a multi-station turntable and has a collection component to suck up welding debris under negative pressure, its collection component has a complex structure, requiring additional components such as vacuum cleaners and interceptor plates. It also relies solely on the vacuum head to collect debris from the welding station. As the batteries are removed from the unloading chute after welding, the welding slag attached to or falling off the surface cannot be effectively removed, and it is easy to accumulate on the chute, which may scratch the surface of subsequent batteries, affecting the appearance and quality of the products. In addition, although the actions of each station (such as welding and inspection) are arranged around the turntable, the loading and unloading processes still rely on independent cylinders or robotic arms for control. The action sequence is complex, and the rotational driving force of the turntable itself is not fully utilized to achieve synchronous material pushing and unloading, resulting in complex equipment control logic and limited cycle time.

[0004] To address these issues, we provide a multi-station rotary table device for laser welding of PACK battery terminals. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-station rotary table equipment for laser welding of PACK battery terminals. Through the transmission connection between the rotary table and the push-type feeding mechanism and the self-cleaning feeding mechanism, as well as the cleaning material transfer component set in the self-cleaning feeding mechanism, the invention solves the problems of limited efficiency caused by the poor connection between the feeding and unloading actions and the welding station transition in existing PACK battery terminal welding equipment, as well as the inconvenience of cleaning welding waste during the unloading process and the easy scratching of the battery surface.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention provides a multi-station rotary table equipment for laser welding of PACK battery terminals, including an equipment base and a rotary table. The equipment base includes a base, and a top seat is fixed to the top of the base by a set of support legs. A drive assembly is fixed on the base, and the drive assembly is connected to the rotary table for transmission. The rotary processing table is arranged circumferentially with a loading station, a welding station, and a unloading station. A push-type loading mechanism is fixed on the equipment base on one side of the loading station, and a self-cleaning unloading mechanism is fixed on the equipment base on one side of the unloading station. The push-type loading mechanism includes a drive frame movably connected to the base and a push frame slidably set on the base. The self-cleaning unloading mechanism includes a discharge slide fixed to the base by support legs and a cleaning material transfer component set on its inner arc side. Both the push frame and the cleaning material transfer component are connected to the rotary processing table via a transmission.

[0007] Furthermore, the bottom of the rotary table is fixed with a bearing seat, the shaft part of the bearing seat is movably installed in the shaft hole of the top seat, the bottom surface of the bearing seat is provided with a circular groove, the inner wall of the circular groove is fixed with an internal gear ring, and the outer circumference of the bearing seat is fixed with an external gear ring. The drive assembly includes a drive motor and a drive gear. The drive motor is fixed on the base, and the drive gear is fixed at its output end. The drive gear meshes with the external gear ring.

[0008] Furthermore, the drive frame includes a frame rod, a first gear, and a second gear. The bottom end of the frame rod is rotatably connected to the base via a bearing, and the top end of the frame rod is fixed with a first gear. The first gear meshes with an internal gear ring, and the second gear is fixed on the periphery of the frame rod below the first gear. The pusher includes a U-shaped plate and a push plate. The push plate is fixed on the U-shaped plate, and an arc-shaped push head is fixed on the top of the push plate. The front end face of the arc-shaped push head is arc-shaped. A first toothed groove is provided inside one side of the U-shaped plate, and a second toothed groove is provided inside the other side of the U-shaped plate. One side of the outer periphery of the No. 2 gear is the toothed part, and the other side of the outer periphery of the No. 2 gear is the smooth part. The U-shaped plate and the No. 2 gear form a transmission connection through the toothed part, the No. 1 tooth groove part and the No. 2 tooth groove part. The toothed part cooperates with the No. 1 tooth groove part and the No. 2 tooth groove part to drive the push frame to move back and forth. The top surface of the base has a set of symmetrically arranged rail grooves, and the bottom of the U-shaped plate has two symmetrically arranged rail seats, which are slidably installed in the corresponding rail grooves.

[0009] Furthermore, the cleaning material handling assembly includes a support frame, a push rod, and a cleaning scraper. A driven wheel is fixed in the middle of the support frame, the bottom of the support frame is movably connected to the top surface of the base via a bearing, a push rod is fixed in the top of the support frame, and a cleaning scraper is fixed on the outer arc side of the push rod. The bottom surface of the top seat is movably connected to a transmission gear via a bearing. The transmission gear meshes with the external gear ring and with the driven gear. The cleaning scraper includes an arc-shaped base plate and an arc-shaped rubber scraper fixed to the bottom of the arc-shaped base plate. The lower edge of the arc-shaped rubber scraper slides against the upper surface of the discharge channel. The outer arc side of the arc-shaped seat plate and its corresponding push rod are connected by a set of evenly distributed connecting rods.

[0010] Furthermore, a waste outlet is provided on the inlet side of the discharge chute, and a waste collection assembly connected to it is located directly below the discharge chute.

[0011] Furthermore, the waste collection assembly includes a U-shaped base and a pull-out box inserted into the pull-out slot of the U-shaped base; The bottom of the U-shaped seat is fixed to the top surface of the top seat, and the top opening of the U-shaped seat is sealed and connected with the waste port. A limiting block is fixed in the pull-out groove of the U-shaped seat to limit the insertion depth of the pull-out box.

[0012] Furthermore, the top surface of the rotary processing table is arranged with material area No. 1, material area No. 2 and material area No. 3 in sequence along its circumference. Material area No. 1, material area No. 2 and material area No. 3 pass through loading station, welding station and unloading station in sequence. The loading station, welding station and unloading station are distributed at equal angles on the rotary processing table.

[0013] Furthermore, it also includes a feeding conveyor belt and a discharging conveyor belt, with the feeding conveyor belt located on the feeding side of the push-type feeding mechanism and the discharging conveyor belt located on the discharging side of the self-cleaning unloading mechanism.

[0014] Furthermore, the conveying direction of the feed conveyor belt is perpendicular to the sliding direction of the pusher, and the feed end of the discharge conveyor belt is located at the lower end of the discharge chute outlet.

[0015] Furthermore, the base has a movable groove, within which two identical bolts are slidably connected; The feeding position of the feeding conveyor belt is equipped with a centering mechanism, which includes a first guide plate and a second guide plate. The first guide plate and the second guide plate are respectively located on both sides of the feeding conveyor belt, and the bottom of the first guide plate and the second guide plate are fixed with support seats. The bottom of the two support seats are respectively connected to two bolts in the movable groove. An outlet is formed between the first guide plate and the second guide plate. The first guide plate and the second guide plate form a "V" shaped structure, and the second guide plate is equipped with a blocking part perpendicular to the conveying direction of the feeding conveyor belt. The first guide plate and the second guide plate are higher than the top surface of the feeding conveyor belt and lower than the bottom surface of the arc-shaped pusher.

[0016] The present invention has the following beneficial effects: 1. This invention integrates the loading station, welding station, and unloading station circumferentially onto a rotary processing table, and sets up a push-type loading mechanism and a self-cleaning unloading mechanism that are connected to the rotary processing table. This achieves automated cyclic operation of battery terminal welding. The intermittent rotation of the rotary processing table synchronously drives the reciprocating linear motion of the pusher and the circumferential motion of the push rod. There is no need to configure an independent drive source for each functional module, which simplifies the equipment structure, reduces the control difficulty and manufacturing cost, and ensures the accuracy and efficiency of the action connection of each station. This significantly improves the automation level and cycle efficiency of welding production.

[0017] 2. This invention incorporates a cleaning scraper linked to the driven wheel in the self-cleaning feeding mechanism. The arc-shaped rubber scraper at its bottom always slides against the upper surface of the discharge chute. During the material feeding process, the arc-shaped rubber scraper simultaneously scrapes the discharge chute, promptly cleaning the welding slag, dust, and other debris that falls from the battery surface or accumulates on the chute to the waste inlet. This effectively avoids scratches on the battery surface and chute blockage caused by debris accumulation, ensuring the appearance quality of the finished product and smooth feeding. In addition, a waste collection component, including a U-shaped seat and a pull-out box, is installed below the waste inlet on the inlet side of the discharge chute. The debris swept off by the cleaning scraper falls directly into the pull-out box through the waste inlet. Operators only need to periodically pull out the pull-out box to empty the waste without disassembling any other parts. Maintenance and operation are simple and quick, solving the problem of welding debris polluting the working environment.

[0018] 3. This invention achieves automatic alignment and positioning of the battery to be welded before loading by setting an adjustable centering mechanism at the feeding conveyor belt. The battery is guided to be laterally centered by the first and second guide plates, while the blocking part restricts the longitudinal movement of the battery, ensuring that the battery stops on a uniform reference line directly in front of the push plate each time. This centering mechanism, together with the push-type feeding mechanism, ensures that the battery is pushed smoothly and accurately into the feeding station on the turntable, providing a reliable guarantee for feeding stability and subsequent welding accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a multi-station rotary table equipment for laser welding of PACK battery terminals.

[0021] Figure 2 This is a schematic diagram of the centering mechanism installed on the equipment base.

[0022] Figure 3 This is a schematic diagram of the interlocking structure of the various linkage components at the bottom of the top seat.

[0023] Figure 4 This is a schematic diagram of a rotary machining table.

[0024] Figure 5 This is a schematic diagram showing the drive frame moving the pusher from the outermost side to the innermost side.

[0025] Figure 6 This is a schematic diagram of the drive frame.

[0026] Figure 7 This is a schematic diagram of a self-cleaning feeding mechanism.

[0027] Figure 8 This is a schematic diagram of the structure of the cleaning material handling component.

[0028] The attached diagram lists the components represented by each number as follows: 100. Equipment base; 101. Feed conveyor belt; 102. Discharge conveyor belt; 110. Base; 111. Movable groove; 112. Bolt; 113. Rail groove; 120. Top seat; 121. Transmission gear; 130. Drive assembly; 131. Drive motor; 132. Drive gear; 200. Rotary machining table; 210. Shaft seat; 211. Internal gear ring; 212. External gear ring; 201. Material area 1; 202. Material area 2; 203. Material area 3; 300. Push-type feeding mechanism; 310. Drive frame; 311. Frame rod; 312. Gear No. 1; 313. Gear No. 2; 3131. Tooth section; 3132. Smooth section; 320. Push frame; 321. U-shaped plate; 3211. Tooth groove No. 1; 3212. Tooth groove No. 2; 3213. Rail base; 322. Push plate; 3221. Arc-shaped push head; 400. Self-cleaning feeding mechanism; 410. Cleaning material transfer assembly; 411. Support frame; 412. Driven wheel; 413. Push rod; 414. Cleaning scraper; 420. Discharge chute; 421. Waste outlet; 430. Waste collection assembly; 431. U-shaped seat; 432. Pull-out box; 500. Centering mechanism; 510. No. 1 guide plate; 520. No. 2 guide plate; 501. Support base; 502. Outlet; 503. Blocking part. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This embodiment provides a multi-station rotary table equipment for laser welding of PACK battery terminals, including an equipment base 100 and a rotary table 200. The equipment base 100 includes a base 110, and a top seat 120 is fixed to its top by a set of support legs. A drive assembly 130 is fixed on the base 110, and the drive assembly 130 is connected to the rotary table 200 for transmission.

[0031] like Figure 1 and Figure 2 As shown, the top surface of the rotary processing table 200 is sequentially arranged with material area 201, material area 202, and material area 203 along its circumference. Material area 201, material area 202, and material area 203 pass through the loading station, welding station, and unloading station in sequence. The loading station, welding station, and unloading station are distributed at equal angular intervals on the rotary processing table 200. An external laser welding device (not shown in the figure) is configured on the outside of the equipment base 100 directly opposite the welding station. This laser welding device is used to perform laser welding on the electrode posts when the battery is stationed at the welding station. The laser welding device is connected to the controller signal. When the rotary processing table 200 stops rotating and the battery on the welding station is in place, the controller sends a start signal to the laser welding device. After the welding is completed, the laser welding device returns a completion signal to the controller, and the controller then starts the drive motor 131.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, a bearing seat 210 is fixed to the bottom of the rotary processing table 200. The shaft of the bearing seat 210 is movably installed in the shaft hole of the top seat 120. A circular groove is opened on the bottom surface of the bearing seat 210. An internal gear ring 211 is fixed to the inner wall of the circular groove, and an external gear ring 212 is fixed to the outer periphery of the bearing seat 210. The drive assembly 130 includes a drive motor 131 and a drive gear 132. The drive motor 131 is fixed on the base 110, and the drive gear 132 is fixed to its output end. The drive gear 132 meshes with the external gear ring 212. The drive motor 131 is a stepper motor or a servo motor and is electrically connected to an external controller. The controller controls the drive motor 131 to rotate intermittently. After each rotation of the drive gear 132 (360°), it stops for a preset time. This preset time is used for the laser welding equipment to complete the welding operation. After the stop time ends, the controller restarts the drive motor 131 to enter the next cycle.

[0033] like Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, a push-type feeding mechanism 300 is fixed on the equipment base 100 located on one side of the feeding station. The push-type feeding mechanism 300 includes a drive frame 310 movably connected to the base 110 and a push frame 320 slidably disposed on the base 110. The drive frame 310 includes a frame rod 311, a first gear 312, and a second gear 313. The bottom end of the frame rod 311 is rotatably connected to the base 110 through a bearing, and the top end of the frame rod 311 is fixed with a first gear 312, which meshes with an internal gear ring 211. The second gear 313 is fixed around the frame rod 311 below the first gear 312. The push frame 320 includes a U-shaped plate 321 and a push plate 322. The push plate 322 is fixed on the U-shaped plate 321, and an arc-shaped push head 3221 is fixed on the top end of the push plate 322. The front end face of 221 is an arc surface; a first tooth groove 3211 is opened inside one side of the U-shaped plate 321, and a second tooth groove 3212 is opened inside the other side of the U-shaped plate 321; one side of the outer periphery of the second gear 313 is a toothed part 3131, and the other side of the outer periphery of the second gear 313 is a smooth part 3132. The U-shaped plate 321 and the second gear 313 are connected by the toothed part 3131, the first tooth groove 3211 and the second tooth groove 3212. The toothed part 3131 cooperates with the first tooth groove 3211 and the second tooth groove 3212 to drive the pusher 320 to move back and forth; a set of symmetrically arranged rail grooves 113 are opened on the top surface of the base 110, and two symmetrically arranged rail seats 3213 are fixed at the bottom of the U-shaped plate 321. The rail seats 3213 are slidably installed in the corresponding rail grooves 113.

[0034] like Figure 1 , Figure 3 , Figure 7 , Figure 8 As shown, a self-cleaning unloading mechanism 400 is fixed on the equipment base 100 located on one side of the unloading station. The self-cleaning unloading mechanism 400 includes a discharge slide 420 fixed to the base 110 by support legs and a cleaning material transfer assembly 410 disposed on its inner arc side. The cleaning material transfer assembly 410 includes a support frame 411, a push rod 413 and a cleaning scraper 414. A driven wheel 412 is fixed in the middle of the support frame 411. The bottom of the support frame 411 is movably connected to the top surface of the base 110 by a bearing 4111. A push rod 413 is fixed in the top of the support frame 411. The outer arc side of the push rod 413... All are fixed with cleaning scraper blades 414; the bottom surface of the top seat 120 is movably connected to the transmission gear 121 through the bearing, the transmission gear 121 meshes with the external gear ring 212, and the transmission gear 121 meshes with the driven wheel 412; the cleaning scraper blade 414 includes an arc-shaped seat plate and an arc-shaped rubber scraper fixed to the bottom of the arc-shaped seat plate, the lower edge of the arc-shaped rubber scraper slides against the upper surface of the discharge slide 420; the arc-shaped seat plate and the outer arc side of its corresponding push rod 413 are connected by a set of evenly distributed connecting rods, and the push frame 320 and the cleaning material transfer assembly 410 are both connected to the rotary processing table 200 for transmission.

[0035] like Figure 1 As shown, this embodiment also includes a feeding conveyor belt 101 and a discharging conveyor belt 102. The feeding conveyor belt 101 is disposed on the feeding side of the push-type feeding mechanism 300; the discharging conveyor belt 102 is disposed on the discharging side of the self-cleaning unloading mechanism 400. The conveying direction of the feeding conveyor belt 101 is perpendicular to the sliding direction of the pusher 320, and the feeding end of the discharging conveyor belt 102 is disposed at the lower end of the outlet of the discharging chute 420. The feeding conveyor belt 101 is used to continuously convey the PA to be welded. The CK battery is transported to the feeding side of the push-type feeding mechanism 300 via the feeding conveyor belt 101 and stops in front of the arc-shaped push head 3221 of the push frame 320. When the push frame 320 reciprocates, the arc-shaped push head 3221 pushes the battery into the feeding station of the rotary processing table 200. The feeding end of the discharge conveyor belt 102 is located at the lower end of the discharge slide 420 outlet, which is used to receive the welded batteries that slide down from the discharge slide 420 and transport them to the next process.

[0036] The working principle of this embodiment is as follows: Start the drive motor 131, drive the gear 132 to rotate, drive the gear 132 to rotate intermittently, each rotation is one revolution (360°), drive the bearing 210 at the bottom of the turntable processing table 200 to rotate 120° through the external gear ring 212, the bearing 210 drives the turntable processing table 200 to rotate 120°, so that the first material area 201, the second material area 202 and the third material area 203 complete one workstation switch in sequence; During the rotation and station change process of the rotary machining table 200, the internal gear ring 211 at its bottom drives the first gear 312, which meshes with it, to rotate, thereby driving the second gear 313 to rotate synchronously for one revolution (360°). During the rotation of the second gear 313 for one revolution, its toothed portion 3131 alternately meshes with the second toothed portion 3212 and the first toothed portion 3211 of the U-shaped plate 321. The specific actions are as follows: like Figure 5 As shown, in the initial state, the pusher 320 is located on the outermost side, the beginning of the toothed portion 3131 meshes with the second toothed portion 3212, and the end disengages from the first toothed portion 3211; during the rotation of the second gear 313 to half a revolution, the toothed portion 3131 drives the pusher 320 to move inward to the innermost side through meshing with the second toothed portion 3212. At this time, the end of the toothed portion 3131 disengages from the second toothed portion 3212, and the beginning of the toothed portion 3131 meshes with the first toothed portion 3211; after the second gear 313 continues to complete the second half revolution, the toothed portion 3131 drives the pusher 320 to move outward and return to its original position through meshing with the first toothed portion 3211; The pusher 320 makes one round trip, and the arc-shaped pusher 3221 at its front end pushes the battery to be welded into the loading station, completing one loading. It should be noted that the front end of the arc-shaped pusher 3221 has an arc surface structure, which is adapted to the outer contour of the battery to be welded. During the pushing process, the arc surface forms a lateral limit on the battery, so that the battery can only move along the movement direction of the arc-shaped pusher 3221 and cannot be laterally offset in the horizontal plane. Therefore, even if the turntable processing table 200 is still rotating during the pushing process (i.e., the loading station is in motion), the battery can still be smoothly pushed into the first material area 201 according to the predetermined path under the forced limit of the arc-shaped pusher 3221. Relative sliding is allowed between the bottom of the battery and the surface of the turntable. The rotation of the turntable will not cause loading failure or battery tilting. By reasonably selecting the low friction material on the upper surface of the turntable (such as polytetrafluoroethylene coating or smooth metal plate) and controlling the speed of the drive motor 131, the sliding friction can be further reduced, ensuring the smoothness of the loading process and the absence of scratches on the battery surface. Meanwhile, as the rotary processing table 200 rotates 120°, the external gear ring 212 drives the transmission gear 121 to rotate, and the transmission gear 121 drives the driven wheel 412 to rotate one revolution (360°). The driven wheel 412 drives the support frame 411 and the push rod 413 on its top to rotate one revolution synchronously. During the rotation, the push rod 413 directly moves the welded battery located at the unloading station to the discharge slide 420 and makes it slide down along the discharge slide 420 onto the discharge conveyor belt 102, completing one unloading operation.

[0037] Example 2, please refer to Figure 7 , Figure 8 Based on Example 1, this example describes the self-cleaning function of the self-cleaning feeding mechanism 400.

[0038] In this embodiment, as Figure 8 As shown, the cleaning scraper 414 includes an arc-shaped base plate and an arc-shaped rubber scraper fixed to the bottom of the arc-shaped base plate. The lower edge of the arc-shaped rubber scraper slides against the upper surface of the discharge chute 420. The arc-shaped base plate and its corresponding push rod 413 are connected by a set of evenly distributed connecting rods. The arc-shaped rubber scraper is elastic, and its lower edge always fits tightly against the upper surface of the discharge chute 420 by its own elasticity or the preload of an external spring. After long-term use and wear, the elasticity can automatically compensate for the fitting gap.

[0039] like Figure 7 As shown, a waste outlet 421 is provided on the inlet side of the discharge chute 420.

[0040] The working principle of this embodiment is as follows: During the process of the push rod 413 rotating to feed the material, the cleaning scraper 414 moves synchronously with the push rod 413. The arc-shaped rubber scraper at the bottom of the scraper continuously and closely adheres to the upper surface of the discharge chute 420 to scrape the material. During the feeding process, the welding slag, dust and other debris falling from the battery are promptly swept to the inlet direction of the discharge chute 420 by the arc-shaped rubber scraper, which prevents the debris from accumulating on the chute and scratching the battery surface or affecting the smooth sliding of subsequent batteries, thus achieving synchronous self-cleaning during the feeding process.

[0041] Example 3, based on Example 2, please refer to... Figure 7 In this embodiment, a waste collection assembly 430 is provided directly below the discharge chute 420 and is connected to it. The waste collection assembly 430 includes a U-shaped seat 431 and a pull-out box 432 inserted into the pull-out groove of the U-shaped seat 431. The bottom of the U-shaped seat 431 is fixed to the top surface of the top seat 120, and the top opening of the U-shaped seat 431 is sealed and connected to the waste port 421. A limiting block for limiting the insertion depth of the pull-out box 432 is fixed in the pull-out groove of the U-shaped seat 431.

[0042] The working principle of this embodiment is as follows: when the cleaning scraper 414 scrapes the debris to the inlet side of the discharge chute 420, the debris falls directly into the U-shaped seat 431 below through the waste port 421 and is finally deposited in the pull-out box 432. When it is necessary to clean the debris, the operator only needs to pull the pull-out box 432 out of the pull-out groove of the U-shaped seat 431, pour out the debris, and push it back into the limit block. There is no need to disassemble other parts.

[0043] Example 4, please refer to Figure 1 , Figure 2Based on Embodiment 1, in this embodiment, a movable groove 111 is provided on the base 110, and two identical bolts 112 are slidably connected in the movable groove 111. Locking nuts are screwed onto the bolts 112. After adjustment, tightening the locking nuts fixes the position of the centering mechanism 500. A centering mechanism 500 is provided at the feeding position of the feeding conveyor belt 101. The centering mechanism 500 includes a first guide plate 510 and a second guide plate 520, which are respectively located on both sides of the feeding conveyor belt 101. The first guide plate 510... Both the first guide plate 510 and the second guide plate 520 are fixed with support bases 501. The bottoms of the two support bases 501 are respectively connected to two bolts 112 in the movable groove 111. An outlet 502 is formed between the first guide plate 510 and the second guide plate 520. The first guide plate 510 and the second guide plate 520 form a "V" shaped structure. The second guide plate 520 is provided with a blocking part 503 that is perpendicular to the conveying direction of the feeding conveyor belt 101. The first guide plate 510 and the second guide plate 520 are higher than the top surface of the feeding conveyor belt 101 and lower than the bottom surface of the arc-shaped push head 3221.

[0044] The working principle of this embodiment is as follows: The PACK battery to be welded is conveyed to the centering mechanism 500 area by the feeding conveyor belt 101. The battery enters the "V"-shaped channel formed by the first guide plate 510 and the second guide plate 520. The two guide plates guide the battery to gradually move towards the center in the horizontal direction to achieve lateral centering. At the same time, the blocking part 503 provided on the second guide plate 520 is perpendicular to the conveying direction of the feeding conveyor belt 101 and is used to limit the longitudinal forward position of the battery, so that the battery finally stops at the arc-shaped push head 3221. On the unified baseline in front, the aligned batteries wait to be pushed from the outlet 502. When it is necessary to adapt to batteries of different sizes, the installation position of the centering mechanism 500 on the base 110 can be adjusted by sliding the bolt 112 in the movable groove 111, thereby adjusting the alignment relationship between the outlet 502 and the arc-shaped push head 3221. The height of the first guide plate 510 and the second guide plate 520 is higher than the top surface of the feed conveyor belt 101 to ensure the guiding effect, while being lower than the bottom surface of the arc-shaped push head 3221 to avoid motion interference.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A multi-station rotary table equipment for laser welding of PACK battery terminals, comprising an equipment base (100) and a rotary processing table (200), wherein the equipment base (100) includes a base (110), and a top seat (120) is fixed to the top of the base by a set of support legs, and a drive assembly (130) is fixed on the base (110), the drive assembly (130) being connected to the rotary processing table (200) in a transmission connection; Its features are: The rotary processing table (200) is provided with a loading station, a welding station, and a unloading station in sequence along its circumference; A push-type feeding mechanism (300) is fixed on the equipment base (100) located on one side of the feeding station, and a self-cleaning feeding mechanism (400) is fixed on the equipment base (100) located on one side of the unloading station. The push-type feeding mechanism (300) includes a drive frame (310) movably connected to the base (110) and a push frame (320) slidably disposed on the base (110). The self-cleaning feeding mechanism (400) includes a discharge slide (420) fixed to the base (110) by a support leg and a cleaning feeding assembly (410) disposed on its inner arc side. Both the pusher (320) and the cleaning material handling assembly (410) are connected to the rotary processing table (200) via a transmission.

2. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 1, characterized in that, The bottom of the rotary processing table (200) is fixed with a bearing seat (210). The shaft part of the bearing seat (210) is movably installed in the shaft hole of the top seat (120). A circular groove is opened on the bottom surface of the bearing seat (210). An internal toothed ring (211) is fixed on the inner wall of the circular groove. An external toothed ring (212) is fixed on the outer periphery of the bearing seat (210). The drive assembly (130) includes a drive motor (131) and a drive gear (132). The drive motor (131) is fixed on the base (110), and the drive gear (132) is fixed at its output end. The drive gear (132) meshes with the external gear ring (212).

3. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 2, characterized in that, The drive frame (310) includes a frame rod (311), a first gear (312) and a second gear (313). The bottom end of the frame rod (311) is rotatably connected to the base (110) through a bearing, and the top end of the frame rod (311) is fixed with a first gear (312). The first gear (312) meshes with an internal gear ring (211). The second gear (313) is fixed on the periphery of the frame rod (311) below the first gear (312). The pusher (320) includes a U-shaped plate (321) and a pusher plate (322). The pusher plate (322) is fixed on the U-shaped plate (321). An arc-shaped pusher head (3221) is fixed at the top of the pusher plate (322). The front end face of the arc-shaped pusher head (3221) is an arc surface. A first toothed groove (3211) is provided inside one side of the U-shaped plate (321), and a second toothed groove (3212) is provided inside the other side of the U-shaped plate (321). One side of the outer periphery of the second gear (313) is a toothed portion (3131), and the other side of the outer periphery of the second gear (313) is a smooth portion (3132). The U-shaped plate (321) and the second gear (313) are connected by a transmission through the toothed portion (3131), the first tooth groove portion (3211), and the second tooth groove portion (3212). The toothed portion (3131) cooperates with the first tooth groove portion (3211) and the second tooth groove portion (3212) to drive the pusher (320) to move back and forth. The top surface of the base (110) is provided with a set of symmetrically arranged rail grooves (113), and the bottom of the U-shaped plate (321) is fixed with two symmetrically arranged rail seats (3213), which are slidably installed in the corresponding rail grooves (113).

4. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 3, characterized in that, The cleaning material handling assembly (410) includes a support frame (411), a push rod (413), and a cleaning scraper (414). A driven wheel (412) is fixed in the middle of the support frame (411). The bottom of the support frame (411) is movably connected to the top surface of the base (110) through a bearing (4111). A push rod (413) is fixed in the top of the support frame (411). A cleaning scraper (414) is fixed on the outer arc side of the push rod (413). The bottom surface of the top seat (120) is movably connected to a transmission gear (121) via a bearing. The transmission gear (121) meshes with the external gear ring (212) and with the driven gear (412). The cleaning scraper (414) includes an arc-shaped base plate and an arc-shaped rubber scraper fixed to the bottom of the arc-shaped base plate. The lower edge of the arc-shaped rubber scraper slides against the upper surface of the discharge chute (420). The outer arc side of the arc-shaped seat plate and its corresponding push rod (413) are connected by a set of evenly distributed connecting rods.

5. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 4, characterized in that, The discharge chute (420) has a waste outlet (421) on its inlet side, and a waste collection assembly (430) connected to it is located directly below the discharge chute (420).

6. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 5, characterized in that, The waste collection assembly (430) includes a U-shaped base (431) and a pull-out box (432) inserted into the pull-out slot of the U-shaped base (431). The bottom of the U-shaped seat (431) is fixed to the top surface of the top seat (120), the top opening of the U-shaped seat (431) is sealed and connected to the waste port (421), and a limiting block for limiting the insertion depth of the pull box (432) is fixed in the pull groove of the U-shaped seat (431).

7. The multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 1, characterized in that, The top surface of the rotary processing table (200) is arranged with a No. 1 material area (201), a No. 2 material area (202), and a No. 3 material area (203) in sequence along its circumference. The No. 1 material area (201), the No. 2 material area (202), and the No. 3 material area (203) pass through the loading station, the welding station, and the unloading station in sequence. The loading station, the welding station, and the unloading station are distributed at equal angles on the rotary processing table (200).

8. A multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 3, characterized in that, It also includes a feeding conveyor belt (101) and a discharging conveyor belt (102), wherein the feeding conveyor belt (101) is disposed on the feeding side of the push-type feeding mechanism (300); and the discharging conveyor belt (102) is disposed on the discharging side of the self-cleaning unloading mechanism (400).

9. A multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 8, characterized in that, The conveying direction of the feed conveyor belt (101) is perpendicular to the sliding direction of the pusher (320), and the feed end of the discharge conveyor belt (102) is located at the lower end of the discharge chute (420).

10. A multi-station rotary table equipment for laser welding of PACK battery terminals according to claim 8, characterized in that, The base (110) has a movable groove (111) and two identical bolts (112) are slidably connected in the movable groove (111). The feeding position of the feeding conveyor belt (101) is provided with a centering mechanism (500), which includes a first guide plate (510) and a second guide plate (520). The first guide plate (510) and the second guide plate (520) are respectively arranged on both sides of the feeding conveyor belt (101), and the bottom of the first guide plate (510) and the second guide plate (520) are fixed with support seats (501). The bottom of the two support seats (501) are respectively connected to two screws in the movable groove (111). The bolts (112) are connected to form an outlet (502) between the first guide plate (510) and the second guide plate (520). The first guide plate (510) and the second guide plate (520) form a "V" shaped structure. The second guide plate (520) is provided with a blocking part (503) perpendicular to the conveying direction of the feed conveyor belt (101). The first guide plate (510) and the second guide plate (520) are higher than the top surface of the feed conveyor belt (101) and lower than the bottom surface of the arc-shaped pusher (3221).

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