Lead-acid battery multi-specification synchronous production line and production method

Abstract

The present invention relates to the technical field of battery production, and specifically discloses a synchronous production line and production method for multiple specifications of lead-acid batteries. The present invention allows semi-shelled workpieces A of different specifications to be transported forward along their respective tracks and undergo synchronous fluxing, synchronous cast welding of busbars, synchronous shelling and bending, synchronous short circuit detection, synchronous pole correction, synchronous sealing ring placement during the transportation process, and finally synchronizes with the glue-dispensing branch line to perform synchronous capping and synchronous capping operations to obtain a capped battery. The present invention enables the synchronous production of multiple different specifications of batteries on the same production line, changing the traditional practice of a single line with a single specification or a single line that can only produce one specification of batteries at a time, thereby meeting scheduling requirements.

Description

Technical Field

[0001] The invention relates to the technical field of battery production, and in particular to a synchronous production line and a production method for multi-specification lead-acid batteries. Background Art

[0002] In the manufacturing process of batteries, after the pole group is formed, it is necessary to shape the pole group and cut and brush the bent pole ears to make the pole group compact, the pole ears neat and of equal height. Then the pole group is placed in the battery slot for cast welding. For example, a battery pole group shaping, cutting and brushing slotting integrated machine disclosed in Chinese public patent document (CN117154178A) is used. The pole ears of the pole group are connected together by a busbar formed by a cast welding process. At present, a semi-shell process is generally used. Chinese public patent document (CN216928666U) discloses the use of an orbital cast welding machine to automatically complete the battery cast welding work.

[0003] However, the existing battery production generally matches one specification to one production line, or one production line adjusts parameters and conditions according to the specifications of the batteries to be produced to complete the production of one specification of batteries at a time. This makes it difficult to meet the scheduling requirements for the production and delivery of multiple specifications of batteries in the same period. Summary of the invention

[0004] The object of the present invention is to provide a method for synchronously producing multiple specifications of lead-acid batteries, which can meet the scheduling requirements of batteries of multiple specifications.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The method for synchronously producing multiple specifications of lead-acid batteries comprises the following steps:

[0007] S1, respectively complete the plate wrapping, ear trimming, brush cutting and half shelling of batteries of different specifications through the plate wrapping and shelling branch lines to obtain a half shelling workpiece A;

[0008] S2, semi-shelled workpieces A of different specifications are conveyed forward along different tracks on the first conveyor main line, and the head ends of the semi-shelled workpieces A at the front ends of different tracks are aligned by the first material sorting mechanism and sent to the flux dipping station, where they are dipped in flux simultaneously and then placed on the second conveyor main line to obtain semi-shelled workpieces B dipped in flux;

[0009] S3, the semi-shelled workpieces B of different specifications are then conveyed forward along different tracks on the second conveyor main line, and the head ends of the semi-shelled workpieces B at the front ends of different tracks are aligned and sent to the busbar casting and welding station by the second material sorting mechanism and the first manipulator. The busbar casting and welding station adopts a track-type casting and welding machine, and each demoulding and clamping mechanism has a plurality of support plates for supporting and positioning that are respectively matched with the shell opening shapes of the semi-shelled workpieces B of different specifications, and the busbar mold has a mold cavity that is respectively matched with the pole group positions of the semi-shelled workpieces B of different specifications, and cast welding is performed synchronously and then output to the third conveyor main line to obtain a cast-welded workpiece;

[0010] S4, cast-welded workpieces of different specifications are then conveyed forward along different tracks on the third conveyor main line, and every two cast-welded workpieces of different specifications are grouped together and respectively sent to one of the shelling and bending stations through the third material sorting mechanism so that the centers of the cast-welded workpieces at the front end of the corresponding track are aligned. Each shelling and bending station only performs shelling and bending on one group of cast-welded workpieces to obtain shelled workpieces, while other cast-welded workpieces pass through the shelling and bending station, and finally each shelled workpiece is output to the fourth conveyor main line;

[0011] S5. The shelled workpieces of different specifications are further conveyed forward along different tracks of the fourth conveying main line. The centers of the shelled workpieces at the front ends of different tracks are aligned by the fourth material sorting mechanism and the second manipulator and conveyed to the fifth conveying main line. The shelled workpieces are conveyed to the short-circuit detection station along the pitch of the fifth conveying main line. The lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the front, back, left, and right positions of the corresponding detection probes are adjusted according to the pole positions of the shelled workpieces of different specifications. Short-circuit detection is performed synchronously. The qualified short-circuit workpieces enter the next stage, while the unqualified ones are removed.

[0012] S6. Short-circuit qualified workpieces of different specifications are continuously transported forward along different tracks of the fifth conveying main line to the pole correction station, the lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the corresponding correction plate hole positions are adjusted according to the pole positions of the shelled workpieces of different specifications, and the pole correction is performed synchronously to obtain the pole correction workpiece;

[0013] S7, the pole correction workpieces of different specifications are continuously transported forward along the different tracks of the fifth conveying main line to the sealing ring delivery station, and the sealing rings are delivered simultaneously and then placed downstream of the fifth conveying main line to obtain the sealing ring workpieces;

[0014] S8. The sealing ring workpieces of different specifications are continuously transported forward along the different tracks of the fifth conveying main line to the gluing and capping station, where they are simultaneously gluing and capping and then sent to the oven to obtain capped storage batteries.

[0015] Preferably, the first material sorting mechanism performs the following steps on the half-shelled workpiece A: first, the half-shelled workpieces A on the front end of each track are conveyed forward one by one, then they are raised to the height of the loading station of the flux dipping station, and then they are pushed horizontally to the loading station of the flux dipping station with the head ends of the half-shelled workpieces A aligned.

[0016] Preferably, the second material sorting mechanism performs the following steps on the half-shelled workpiece B: first, the half-shelled workpieces B on the front end of each track are conveyed forward one by one, then raised to the clamping height of the first manipulator, and then pushed horizontally to the clamping workstation of the first manipulator with the head ends and top surfaces of the half-shelled workpieces B aligned; the first manipulator synchronously clamps the half-shelled workpiece B on the clamping workstation and flips it over to the bus cast welding station and inverts it on the support plate on the clamping station of the track cast welding machine.

[0017] Preferably, the cast-welded workpieces have four specifications, and the shell entry and bending stations are sequentially a shell entry and bending station A and a shell entry and bending station B, and each two specifications form a group and are divided into a first group and a second group, wherein the first group of cast-welded workpieces are shelled and bent at the shell entry and bending station A while the second group of cast-welded workpieces pass through the shell entry and bending station A, and the second group of cast-welded workpieces are shelled and bent at the shell entry and bending station B while the first group of cast-welded workpieces pass through the shell entry and bending station B;

[0018] The third material sorting mechanism equipped at the shell entry and bending station A and the shell entry and bending station B respectively performs the following steps on the cast-welded workpieces: first, the cast-welded workpieces at the front end of each track are conveyed forward one by one, and then the cast-welded workpieces at the front end of the corresponding track are conveyed to the shell entry and bending station after the center alignment is completed.

[0019] Preferably, the fourth material sorting mechanism performs the following steps on the shelled workpieces: first, the shelled workpieces on the front end of each track are conveyed forward one by one and the head ends are aligned, and then the shelled workpieces are conveyed to the lifting station in pitches, where the shelled workpieces are synchronously lifted so that the second manipulator can synchronously clamp them; the second manipulator is used to synchronously clamp the shelled workpieces of different specifications with their head ends aligned at the lifting station and transfer them to the fifth conveying main line, while aligning the centers of each shelled workpiece.

[0020] Preferably, the flux dipping process of the flux dipping station is as follows: the top surfaces of the half-shelled workpieces A on the loading station are at the same horizontal height, and then the half-shelled workpiece A is turned over and upside down on the flux tray by the loading robot to be dipped in flux to obtain the half-shelled workpiece B, and then the half-shelled workpiece B is turned over and placed upright on the second conveyor main line by the unloading robot. The input end of the second conveyor main line is provided with a lifting support block matching the height of half-shelled workpieces B of different specifications so that each half-shelled workpiece B can be stably placed on the second conveyor main line.

[0021] Preferably, the shell entry and bending process of the shell entry and bending station is as follows: when the cast-welded workpiece reaches the position, it stops, then the cast-welded workpiece is lifted upward to the bending height, and then the bending assembly moves horizontally to insert into the gap between the bus and the shell and remains stationary, and then the shell entry assembly squeezes the pole group of the cast-welded workpiece downward until it is completely inserted into the shell, and at the same time the bus is bent upward by the action of the bending assembly, and finally lowered to reset.

[0022] Preferably, the ring picking process of the sealing ring delivery station is as follows: the pole correction workpiece is sent to the sealing ring fitting station and stopped, the sealing rings are received one by one from the ring delivery mechanism of the docking vibration plate through the sliding material receiving rack, and then the elastic needle is used to pick up and fit on the pole of the pole correction workpiece.

[0023] Preferably, the specific process of the gluing and capping station is: the sealing ring workpieces of each track at the end of the fifth conveying main line are synchronously lifted for easy clamping, and the transition station is adjusted according to the height of each sealing ring workpiece to a state where it can synchronously and stably receive each sealing ring workpiece, and then synchronously clamped and flipped upside down at the transition station and adjusted the height to the same horizontal height of the outer shell openings of each sealing ring workpiece after being placed stably, and then synchronously clamped and transferred to the capping station to be upside down on the gluing cover plate, and then synchronously transferred to the capping station for pressure maintaining and capping, and finally synchronously sent to the oven for drying.

[0024] The present invention also provides a synchronous production line specifically used for implementing the above-mentioned synchronous production method of multiple specifications of lead-acid batteries.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention enables semi-shelled workpieces A of different specifications to be transported forward along respective tracks, and during the transport process, the first material sorting mechanism enables the semi-shelled workpiece A to meet the synchronous solder flux dipping condition to synchronously dip and obtain the semi-shelled workpiece B, and then the second material sorting mechanism and the first manipulator enable the semi-shelled workpiece B to meet the synchronous transfer condition to synchronously cast and weld the busbar to obtain the cast-welded workpiece, and then the third material sorting mechanism enables the cast-welded workpiece group to meet the synchronous shelling and bending condition to synchronous shelling and bending to obtain the shelled workpiece, and then the fourth material sorting mechanism and the second manipulator enable the shelled workpiece to meet the synchronous short circuit detection, synchronous pole correction and synchronous sealing ring delivery conditions to perform synchronous short circuit detection, synchronous pole correction and synchronous sealing ring delivery in turn, and finally the glue-dispensing branch line is combined to perform synchronous capping and synchronous capping operations to obtain the capped battery. The present invention enables the synchronous production of multiple different specifications of batteries on the same production line, changing the traditional practice of a single line with a single specification or a single line that can only produce one specification of batteries at a time, and meeting the scheduling requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1The present invention is a flow chart for the synchronous production of multiple specifications of lead-acid batteries.

[0028] Figure 2 It is a schematic diagram of the structure of the first material sorting mechanism and the soldering flux dipping station in step S2 of the present invention.

[0029] Figure 3 It is a top view of the first material sorting mechanism and the soldering flux dipping station in step S2 of the present invention.

[0030] Figure 4 Schematic diagram of the structure of the second material sorting mechanism and the first manipulator in step S3 of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the third material sorting mechanism and the shell feeding and bending station A in step S4 of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the working state of the shell insertion and bending station of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the second working state of the shell insertion and bending station of the present invention.

[0034] Figure 8 It is a structural schematic diagram of the material receiving state of the sealing ring delivery station in step S7 of the present invention.

[0035] Fig. 9 It is a structural schematic diagram of the picking state of the sealing ring delivery station in step S7 of the present invention.

[0036] Fig.10 It is a side view schematic diagram of the sliding ring mechanism, the lifting mechanism, the second guide frame and the ring picking mechanism in the sealing ring delivery station of the present invention.

[0037] Fig.11 It is a schematic diagram of the cooperation between the ring connecting mechanism and the material connecting assembly of the present invention.

[0038] Fig.12 This is a schematic diagram of the various workstations of the point gluing cover workstation in step S8 of the present invention.

[0039] Markings in the figure: 101, loading manipulator; 102, flux tray; 103, unloading manipulator; 104, fixed platform; 1041, height adjustment block; 105, lifting support block; 111, first material handling roller conveyor; 112, first lifting platform; 113, first horizontal push assembly; 200, support plate; 211, second material handling roller conveyor; 212, second lifting platform; 213, second horizontal push assembly; 214, first manipulator; 215, movable support block; 311, third material handling roller conveyor A; 312, third blocking assembly A; 3011, rising cylinder; 3012, lifting plate; 3021, Bending cylinder; 3022, bending plate; 3031, shelling cylinder; 3032, lower pressure plate; 601, vibration plate; 602, ring throwing mechanism; 6021, horizontal cylinder; 6022, vertical cylinder; 603, sliding ring mechanism; 6030, material receiving hole; 6032, material receiving assembly; 6031, sliding material receiving rack; 604, lifting mechanism; 605, picking ring mechanism; 606, detection bracket; 6071, second guide frame; 6072, second guide groove; 71, lifting station; 72, transition station; 73, capping station; 74, capping station; 75, loading station; 76, glue dispensing station; 77, middle station. DETAILED DESCRIPTION

[0040] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0041] like Figure 1-Figure 12 As shown, this embodiment provides a method for synchronously producing multiple specifications of lead-acid batteries, and the following steps are performed in sequence using a synchronous production line:

[0042] S1. Complete the plate wrapping, ear trimming, brush cutting and half shelling of batteries of different specifications through the plate wrapping and shelling branch lines respectively to obtain a half shelling workpiece A.

[0043] In step S1, the following four specifications of batteries are completed respectively through four board wrapping and shelling branches: 12N9L, YTX7A, 12N5L, and YTX4L. These four types of batteries all have two poles on the same side, and only differ in the length, width or height of the shell. The semi-shelled workpieces A of these four specifications of batteries are respectively transported on their respective tracks along the first conveyor main line after their respective board wrapping and shelling branches are completed. The board wrapping and shelling branch line includes a board wrapping machine and an ear-straightening, brush-cutting, and semi-shelling all-in-one machine. The board wrapping machine is a common machine on the market, and the ear-straightening, brush-cutting, and semi-shelling all-in-one machine adopts the one disclosed in patent CN117154178A, which will not be repeated here.

[0044] S2. Semi-shelled workpieces A of different specifications are conveyed forward along different tracks on the first conveyor main line. The heads of the semi-shelled workpieces A at the front ends of different tracks are aligned by the first material sorting mechanism and sent to the flux dipping station. They are dipped in flux simultaneously and then placed on the second conveyor main line to obtain semi-shelled workpieces B dipped in flux.

[0045] The first material sorting mechanism performs the following steps on the half-shelled workpiece A: first, the half-shelled workpieces A on the front end of each track are conveyed forward one by one, then they are raised to the height of the loading station of the flux dipping station, and then they are pushed horizontally to the loading station of the flux dipping station with the head ends of the half-shelled workpieces A aligned.

[0046] Specifically: the first conveying main line includes a front section of chain conveying and a rear section of roller conveying that are connected to each other, the first material sorting mechanism includes a first material sorting roller conveyor 111, a first push assembly 113 and a first lifting platform 112, the first material sorting roller conveyor 111 is connected to the output end of the rear section of roller conveying, the first lifting platform 112 is connected to the output end of the first material sorting roller conveyor 111 and is located between the first material sorting roller conveyor 111 and the soldering flux station, the half-shelled workpieces A on each track are sent to the first lifting platform 112 one by one through the first material sorting roller conveyor 111, the half-shelled workpieces A are raised to the height of the loading station of the soldering flux station through the first lifting platform 112, and then pushed horizontally to the loading station of the soldering flux station through the first push assembly 113, and the head ends of the half-shelled workpieces A are aligned. The top of the first lifting platform 112 has a plurality of guide bars.

[0047] The flux dipping process of the flux dipping station is specifically as follows: the top surfaces of the half-shelled workpieces A on the loading station are at the same horizontal height, and then the half-shelled workpieces A are turned over and placed upside down on the flux tray 102 by the loading robot 101 to be dipped in flux to obtain the half-shelled workpieces B, and then the half-shelled workpieces B are turned over and placed upright on the second conveyor main line by the unloading robot 103. The input end of the second conveyor main line is provided with a lifting support block 105 matching the height of the half-shelled workpieces B of different specifications so that each half-shelled workpiece B can be stably placed on the second conveyor main line.

[0048] The solder fluxing station includes a fixed platform 104 located at the loading station, a loading robot 101, a solder flux tray 102, and a unloading robot 103. The fixed platform 104 is provided with through slots that penetrate up and down corresponding to the semi-shelled workpieces A of different specifications, and a height adjustment block 1041 driven by a first cylinder to rise and fall along the corresponding slot so that the top surfaces of the semi-shelled workpieces A of different specifications on the fixed platform 104 are at the same horizontal height. The loading robot 101 is set to flip forward and backward to synchronously clamp and flip the semi-shelled workpieces A of different specifications adjusted to be flush with the top surface by the height adjustment block 1041 to the solder flux tray 102, and the unloading robot 103 is set to flip forward and backward to synchronously clamp and flip the semi-shelled workpieces B of different specifications on the solder flux tray 102 to the second conveying main line. The input end of the second conveying main line is provided with a lifting support block 105 driven by a second cylinder to rise and fall to support the semi-shelled workpieces B of different specifications on the unloading robot 103. The second conveying main line adopts a roller conveying mechanism.

[0049] S3. Semi-shelled workpieces B of different specifications are then conveyed forward along different tracks on the second conveyor main line. The head ends of the semi-shelled workpieces B at the front ends of different tracks are aligned by the second material sorting mechanism and the first manipulator 214 and sent to the bus bar casting welding station for simultaneous cast welding and then output to the third conveyor main line to obtain cast-welded workpieces.

[0050] The second material sorting mechanism performs the following steps on the half-shelled workpiece B: first, the half-shelled workpieces B on the front end of each track are conveyed forward one by one, then rise to the clamping height of the first manipulator 214, and then are pushed horizontally to the clamping workstation of the first manipulator 214 with the head ends and top surfaces of the half-shelled workpieces B aligned; the first manipulator 214 synchronously clamps the half-shelled workpiece B on the clamping workstation and flips it over to the bus cast welding station and inverts it on the support plate 200 on the clamping station of the track cast welding machine.

[0051] Specifically: the second material sorting mechanism includes a second material sorting roller conveyor 211, a second push assembly 213 and a second lifting platform 212. The second material sorting roller conveyor 211 is connected to the output end of the second conveying main line and is used to send the half-shelled workpieces B on each track to the second lifting platform 212 one by one. The second lifting platform 212 is connected to the output end of the second material sorting roller conveyor 211 and is used to raise the half-shelled workpiece B to the clamping height of the first manipulator 214. The second push assembly 213 is located at the clamping height of the first manipulator 214 and is used to send the half-shelled workpiece B on the high second lifting platform 212 to the clamping work position of the first manipulator 214 and align the head end of the half-shelled workpiece B. The first manipulator 214 can be rotatably arranged and has a clamping work position for clamping the half-shelled workpiece B pushed into place from the second lifting platform 212 by the second push assembly 213 and a releasing work position for sending the half-shelled workpiece B to the busbar casting welding station. The rear side of the clamping workstation is provided with a stopper for aligning the head end of each half-shelled workpiece B, and the bottom of the clamping workstation is provided with a movable support block 215 driven by a cylinder and adjusting the lifting height according to the height of the half-shelled workpiece B of different specifications. The movable support block 215 allows the first manipulator 214 to align the top surface of each half-shelled workpiece B before clamping, so that the bottom is flush and buckled on the support plate 200 of the busbar casting welding station after flipping. The third conveying main line adopts a roller conveying mechanism, and the structure of the first manipulator 214 refers to the loading manipulator 101.

[0052] The busbar casting welding station is disclosed in patent CN216928666U as a track-type casting welding machine, which includes a frame, a closed-loop track fixed on the top of the frame, a plurality of casting welding devices slidably fitted on the track, a driving device and an electric control box; the casting welding device includes a traveling mechanism fitted with the track, at least one busbar mold installed on the top surface of the traveling mechanism, and a demolding and clamping mechanism for positioning the battery workpiece, all the traveling mechanisms are connected in series in sequence through a rotatable lower connecting rod to connect the plurality of casting welding devices to form a closed loop, and the driving device drives the closed-loop casting welding device to slide cyclically along the track.

[0053] The track-type cast welding machine is provided with a demoulding detection station, a mold preheating station, a mold temperature detection station, a mold heating station, a lead injection station, a clamping station, a mold closing station, a plurality of cooling stations, a demoulding station, and a clamping station in sequence along the moving direction of the cast welding device, and the cast welding device circulates and cycles between the above stations. Each demoulding and mold closing mechanism has a plurality of support plates 200 for supporting and positioning that are respectively matched with the shell opening shapes of the semi-shelled workpieces B of different specifications, and the busbar mold has a mold cavity that is respectively matched with the pole group positions of the semi-shelled workpieces B of different specifications.

[0054] S4. Cast-welded workpieces of different specifications are then conveyed forward along different tracks on the third conveyor main line. Every two specifications of cast-welded workpieces form a group and are respectively sent to one of the shelling and bending stations through the third material sorting mechanism to align the centers of the cast-welded workpieces at the front end of the corresponding track. Each shelling and bending station only performs shelling and bending on one group of cast-welded workpieces to obtain shelled workpieces while other cast-welded workpieces pass through the shelling and bending station. Finally, each shelled workpiece is output to the fourth conveyor main line.

[0055] The cast-welded workpieces have four specifications, and the shell entry and bending stations are respectively a shell entry and bending station A and a shell entry and bending station B, and each two specifications form a group and are divided into a first group and a second group, wherein the first group of cast-welded workpieces are shelled and bent at the shell entry and bending station A, and the second group of cast-welded workpieces pass through the shell entry and bending station A, and the second group of cast-welded workpieces are shelled and bent at the shell entry and bending station B, and the first group of cast-welded workpieces pass through the shell entry and bending station B. The third material sorting mechanism equipped with the shell entry and bending station A and the shell entry and bending station B respectively performs the following steps on the cast-welded workpieces: first, the cast-welded workpieces at the front end of each track are conveyed forward one by one, and then the cast-welded workpieces at the front end of the corresponding track are sent to the shell entry and bending station after the center alignment is completed.

[0056] Specifically: the third material sorting mechanism equipped at the shell feeding and bending station A is the third material sorting mechanism A, and the third material sorting mechanism equipped at the shell feeding and bending station B is the third material sorting mechanism A. The fourth conveying main line adopts a roller conveying mechanism.

[0057] The third material sorting mechanism A includes a third material sorting roller conveyor A311 and a third blocking assembly A312. The third material sorting roller conveyor A311 is connected to the output end of the third conveying main line and passes through the shell entry and bending station A. The third blocking assembly A312 is arranged on the input side of the shell entry and bending station A. The third blocking assembly A312 includes a blocking cylinder A installed on the shell entry and bending station A and a pneumatic blocking rod A installed at the end of the piston rod of the blocking cylinder A. The pneumatic blocking rod A adjusts the blocking position according to the length of the corresponding cast-welded workpiece so that the center of the first group of cast-welded workpieces is aligned.

[0058] The third material sorting mechanism B includes a third material sorting roller conveyor B and a third blocking assembly B. The third material sorting roller conveyor B is connected to the output end of the third material sorting roller conveyor A311 and passes through the shell entry and bending station B. The third blocking assembly B is arranged on the input side of the shell entry and bending station B. The third blocking assembly B includes a blocking cylinder B installed on the shell entry and bending station B and a pneumatic blocking rod B installed at the end of the piston rod of the blocking cylinder B. The pneumatic blocking rod B adjusts the blocking position according to the length of the corresponding cast-welded workpiece so that the center of the second group of cast-welded workpieces is aligned.

[0059] The shell entry and bending process of the shell entry and bending station is specifically as follows: when the cast-welded workpiece reaches the position, it stops, then the cast-welded workpiece is lifted upward to the bending height, and then the bending assembly moves horizontally to insert into the gap between the bus and the shell and remains stationary, and then the shell entry assembly squeezes the pole group of the cast-welded workpiece downward until it is completely inserted into the shell, and at the same time the bus is bent upward by the action of the bending assembly, and finally drops and resets.

[0060] The shell entry and bending stations each include a shell entry assembly, a lifting assembly, and two bending assemblies. The lifting assembly is located below the third material handling roller conveyor A311 or the third material handling roller conveyor B and includes a lifting cylinder 3011 and a lifting plate 3012 corresponding to the cast-welded workpieces on each track driven by the lifting cylinder 3011. The lifting stroke of the lifting cylinder 3011 is set according to the height matching of the cast-welded workpieces on the corresponding track so that the busbars of the same group of cast-welded workpieces are at the same height after the lifting. Each bending assembly includes a bending cylinder 3021 and a bending plate 3022 corresponding to the gap between the busbar and the shell of the cast-welded workpiece after the lifting. Each bending plate 3022 is located on one side of the two busbars of the corresponding cast-welded workpiece. The shell entry assembly is located above the third material handling roller conveyor A311 or the third material handling roller conveyor B and includes a shell entry cylinder 3031 and a lower pressing plate 3032 driven by the shell entry cylinder 3031 and corresponding to the cast-welded workpiece on each track.

[0061] S5. The shelled workpieces of different specifications are further conveyed forward along different tracks of the fourth conveyor main line. The centers of the shelled workpieces at the front end of different tracks are aligned by the fourth material sorting mechanism and the second manipulator and conveyed to the fifth conveyor main line. The shelled workpieces are conveyed to the short-circuit detection station along the pitch of the fifth conveyor main line. The lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the front, back, left, and right positions of the corresponding detection probes are adjusted according to the pole positions of the shelled workpieces of different specifications. Short-circuit detection is performed synchronously. The qualified short-circuit qualified workpieces enter the next stage, while the unqualified ones are removed. The fifth conveyor main line adopts a roller conveyor mechanism.

[0062] The fourth material sorting mechanism performs the following steps on the shelled workpieces: first, the shelled workpieces on the front end of each track are conveyed forward one by one and the head ends are aligned, and then the shelled workpieces are conveyed to the lifting station in pitch, where the shelled workpieces are synchronously lifted so that the second manipulator can synchronously clamp them; the second manipulator is used to synchronously clamp the shelled workpieces of different specifications with their head ends aligned at the lifting station and transfer them to the fifth conveying main line, while aligning the centers of each shelled workpiece.

[0063] The fourth material sorting mechanism includes a fourth material sorting roller conveyor, a fourth lifting platform and a fourth blocking assembly. The fourth material sorting roller conveyor is connected to the output end of the fourth conveying main line and is used to transmit the pitch of the shelled workpieces on different tracks of the fourth conveying main line forward. The fourth blocking assembly is located above the fourth material sorting roller conveyor and is used to block and align the head ends of the shelled workpieces entering the fourth material sorting roller conveyor. The fourth lifting platform is connected to the lifting station at the output end of the fourth material sorting roller conveyor and is used to lift the shelled workpieces for easy clamping by the second manipulator. The second manipulator includes a synchronous bidirectional clamp that matches the number of tracks of the fourth conveying main line and a two-axis drive mechanism that drives the synchronous bidirectional clamp to lift and lower linearly and move horizontally. Since it is a synchronous bidirectional clamp, the center alignment of each shelled workpiece can be achieved after clamping.

[0064] The short-circuit detection station includes a plurality of lifting detection seats, a probe group, and a detection cylinder that drives the probe group to lift up and down. The detection probes are respectively distributed on the probe group corresponding to the pole positions of the shelled workpieces on each track, and the bottom ends of the detection probes are at the same horizontal height. The lifting detection seat is located directly below the probe group and is retracted below the fifth conveying main line in the initial state, and rises and lifts each shelled workpiece during short-circuit detection. Due to the different heights of the shelled workpieces, the lifting height of the lifting detection seat is controlled by the stroke of each cylinder to achieve matching, and finally the poles of the shelled workpieces of different specifications are at the same horizontal height. Those that fail the short-circuit detection will be transferred by the rejection manipulator. In order to ensure the accuracy of the detection position of the shelled workpiece, the present embodiment also sets a guide frame at the position corresponding to the lifting detection seat above the fifth conveying main line, and each shelled workpiece is guided by the corresponding guide groove on the guide frame after rising.

[0065] S6. Short-circuit qualified workpieces of different specifications are continuously conveyed forward along different tracks of the fifth conveying main line to the pole correction station. As above, the lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the corresponding correction plate hole positions are adjusted according to the pole positions of the shelled workpieces of different specifications, and the pole correction is performed simultaneously to obtain the pole correction workpiece.

[0066] S7. The pole correction workpieces of different specifications are continuously transported forward along different tracks of the fifth conveying main line to the sealing ring delivery station, and the sealing rings are delivered simultaneously and then placed downstream of the fifth conveying main line to obtain sealing ring workpieces.

[0067] The specific process of picking up the rings at the sealing ring delivery station is as follows: the pole correction workpiece is sent to the sealing ring installation station and stopped, the sealing rings are received one by one from the ring delivery mechanism 602 of the docking vibration plate 601 through the sliding material receiving rack 6031, and then the elastic needle is used to pick up and put on the pole of the pole correction workpiece.

[0068] The sealing ring delivery station includes two vibration plates 601, two ring delivery mechanisms 602, a sliding ring connection mechanism 603, a lifting mechanism 604 and a ring pickup mechanism 605. Among them, the two vibration plates 601 are arranged on one side of the fifth conveying main line and are respectively connected to a single-ring arrangement track on the output side, the two ring delivery mechanisms 602 are respectively arranged at the output end of the single-ring arrangement track, the ring pickup mechanism 605 is arranged above the fifth conveying main line, and the sliding ring connection mechanism 603 is arranged above the fifth conveying main line and is used to receive the sealing ring delivered from the ring delivery mechanism 602 and then slide to the bottom of the ring pickup mechanism 605 to pick up the sealing ring.

[0069] In this embodiment, the sliding ring mechanism 603 includes a screw module, a sliding material receiving frame 6031, and a plurality of material receiving components 6032 arranged on the sliding material receiving frame 6031 at intervals along the conveying direction perpendicular to the fifth conveying main line. The screw module is mounted above the fifth conveying main line and connected to the sliding material receiving frame 6031 through a sliding block to drive the sliding material receiving frame 6031 to slide along the conveying direction perpendicular to the fifth conveying main line. The sliding block also slides with the guide rod to make the sliding material receiving frame 6031 stable in translation. One end of the screw module is transmission-connected to a servo motor, and the sliding direction and intermittent sliding distance of the sliding material receiving frame 6031 are controlled by the servo motor.

[0070] The installation positions and number of the multiple groups of material receiving components 6032 of this embodiment on the sliding material receiving rack 6031 are set according to the number of tracks on the fifth conveyor main line and the pole positions on different pole correction workpieces on each track. In this way, the elastic needles of the picking ring mechanism 605 can be matched with the battery pole positions on different tracks respectively. During the sealing ring placement operation, each elastic needle only needs to move up and down without adjusting the horizontal position.

[0071] The material receiving component 6032 includes a thin finger cylinder and two material receiving blocks driven by the thin finger cylinder and sliding back and forth along the conveying direction parallel to the fifth conveying main line. The material receiving blocks are respectively provided with material receiving holes 6030 and the initial positions of the same-side material receiving holes 6030 on each material receiving component 6032 are on the same straight line parallel to the sliding direction of the sliding material receiving rack 6031. Since the receiving block will slide forward and backward, the receiving hole 6030 has two positions, one is the initial position, which is used to receive the sealing ring thrown from the ring throwing mechanism 602. Being on the same straight line is conducive to fixing the ring throwing position and sliding the receiving frame 6031 to realize throwing rings to each receiving component 6032; the other is the picking position, which is used for the elastic needle head of the picking ring mechanism 605 to pick up. Since the elastic needle head only moves up and down and must face the different battery pole positions on different tracks on the fifth conveying main line, the picking positions of the receiving holes 6030 on different receiving components 6032 will be different. The specific picking position is achieved by controlling the stroke position of the thin finger cylinder, and the receiving hole 6030 moves back and forth between the initial position and the picking position. In addition, the vertical distance center point of the two poles on the pole correction workpiece on the fifth conveying main line is directly opposite to the vertical distance center point of the two receiving holes 6030 on the same receiving component 6032. The thin finger cylinder is available from the market, such as MHF2-16D.

[0072] The ring throwing mechanism 602 is used to throw the frontmost sealing ring of the single-circle arrangement track into the material receiving hole 6030. The two ring throwing mechanisms 602 are located at the front and rear sides of the sliding material receiving frame 6031. The ring throwing mechanism 602 includes a horizontal cylinder 6021 and a vertical cylinder 6022. The horizontal cylinder 6021 is arranged above the single-circle arrangement track. The vertical cylinder 6022 is installed at the end of the piston rod of the horizontal cylinder 6021 through a slider. The end of the piston rod of the vertical cylinder 6022 passes through the slider downward and extends into the single-circle arrangement track. The end of the piston rod of the vertical cylinder 6022 is connected to a push rod. The end of the single-circle arrangement track is provided with a ring drop notch and an opening baffle located on the upstream side of the ring drop notch. The opening baffle has a blocking and limiting effect on the sealing ring without affecting the movement to the ring drop notch. The material receiving block reciprocates directly below the ring drop notch. The height between the top surface of the material receiving block and the bottom surface of the single-circle arrangement track is 0.1mm-1.0mm. The sealing rings are sent to the single-circle arrangement track through the vibration plate 601 and arranged one by one in the single-circle arrangement track. The frontmost sealing ring is blocked by the opening blocking piece, and the horizontal cylinder 6021 retracts to pull the vertical cylinder 6022 back until the push rod is located at the center hole of the frontmost sealing ring. When the frontmost sealing ring is to be dropped, the vertical cylinder 6022 extends and then the horizontal cylinder 6021 extends, driving the push rod to push the frontmost sealing ring to the ring drop gap, and then use free fall to drop into the receiving hole 6030 below.

[0073] The automatic sealing ring placement device also includes a detection bracket 606 and two detection switches installed on the detection bracket 606. The detection bracket 606 is located above the sliding receiving frame 6031, and the sliding receiving frame 6031 slides below the detection bracket 606. Since the initial positions of the receiving holes 6030 are on the same straight line, the detection switch can detect whether the sealing ring is placed in the receiving holes 6030 on the same side of the four receiving components 6032. Specifically, the detection switch uses an infrared distance sensor. When there is no sealing ring in a certain receiving hole 6030, it is re-placed until all the receiving holes 6030 of the four receiving components 6032 are placed in place. The detection bracket 606 is close to the two ring throwing mechanisms 602.

[0074] When all the receiving holes 6030 on the four groups of receiving components 6032 have completed the ring throwing, the thin finger cylinder is reset so that the receiving holes 6030 are in the picking position, and the sliding receiving rack 6031 moves to the bottom of the picking ring mechanism 605, and the picking ring mechanism 605 descends to pick up the sealing ring and then rises to reset, and then the sliding receiving rack 6031 moves away to make room, and the lifting mechanism 604 synchronously lifts the pole correction workpieces on each track until the top surface is at the same horizontal height, and then the picking ring mechanism 605 descends again to put the picked sealing ring on the corresponding battery pole below.

[0075] In this embodiment, the picking ring mechanism 605 is used to pick up the sealing ring on the material receiving hole 6030 and then put it on the battery pole below, including picking ring components that match the number of material receiving components 6032 and are arranged at intervals along the conveying direction perpendicular to the fifth conveying main line, and the spacing between adjacent picking ring components is the same as the spacing between the corresponding material receiving components 6032. In this way, when picking up the ring, the picking ring component can synchronously descend to pick up the sealing ring at the corresponding position, and then synchronously descend the ring to the corresponding battery pole, instead of picking up and ringing in groups.

[0076] The lifting mechanism 604 described in this embodiment is located below the fifth conveying main line and includes a lifting cylinder and a supporting seat driven by the lifting cylinder to lift up and down. The supporting seat is adapted to adjust the height according to the height of the battery shells of different specifications so that the top surfaces of the pole correction workpieces on different tracks are at the same horizontal height after lifting. In order to ensure the accuracy of the position of the sealing ring of the pole correction workpiece, this embodiment also sets a second guide frame 6071 at the position corresponding to the supporting seat above the fifth conveying main line. After rising, each pole correction workpiece is guided by the corresponding second guide groove 6072 on the second guide frame 6071.

[0077] S8. The sealing ring workpieces of different specifications are continuously transported forward along the different tracks of the fifth conveying main line to the gluing and capping station, where they are simultaneously gluing and capping and then sent to the oven to obtain capped storage batteries.

[0078] The specific process of the gluing and capping station is as follows: the sealing ring workpieces of each track at the end of the fifth conveying main line are synchronously lifted for easy clamping, and the transition station 72 is adjusted according to the height of each sealing ring workpiece to a state where it can synchronously and stably receive each sealing ring workpiece, and then synchronously clamped and turned upside down at the transition station 72 and adjusted to the shell openings of each sealing ring workpiece at the same level after being placed stably, and then synchronously clamped and transferred to the capping station 73 to be turned upside down on the gluing cover plate, and then synchronously transferred to the capping station 74 for pressure maintaining and capping, and finally synchronously sent to the oven for drying.

[0079] The glue dispensing and capping station includes a glue dispensing branch line, a lifting station 71, a transition station 72, a capping station 73, a capping station 74, and a flipping and clamping manipulator for flipping and transferring the sealing ring workpiece to the capping station 73, a capping manipulator for pressing the workpiece on the capping station 74, and a glue dispensing manipulator for dispensing glue to the cover plate on the glue dispensing branch line, a lifting pitch conveyor for transferring the glue dispensing cover plate to the capping station 73 and transferring the workpiece on the capping station 73 to the capping station 74, and a discharge conveyor line for outputting the workpiece on the capping station 74 to the oven. The lifting station 71 is located at the end of the fifth conveying main line and includes a lifting frame driven by a lifting cylinder, the transition station 72 includes a lifting support plate that is respectively matched with the height of the corresponding sealing ring workpiece and is used to support the workpiece after being flipped by the flipping and clamping manipulator, and the capping station 73 has a movable clamp that matches the sealing ring workpieces of different specifications.

[0080] The lifting pitch conveyor includes a frame, two lifting cylinders, a screw drive module and a conveying bracket. The two lifting cylinders are installed at the bottom of the frame and their piston rods are upwardly connected to the bottom of the screw drive module. The conveying bracket is fixed on the nut of the screw drive module and has two conveying areas. Each conveying area has a placement groove adapted to four different specifications of dispensing cover plates. One conveying area is used to transfer the dispensing cover plate on the dispensing branch line to the capping station 73, and the other conveying area is used to transfer the workpiece on the capping station 73 to the capping station 74. Similarly, the dispensing branch line can also be equipped with this type of conveyor to realize the transfer of the non-glue cover plate from the loading position 75 to the dispensing position 76 and the transfer of the dispensing cover plate from the dispensing position 76 to the conveying area of ​​the lifting pitch conveyor. The dispensing branch line and the lifting pitch conveyor have a common middle position 77.

[0081] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A method for synchronously producing multiple specifications of lead-acid batteries, characterized in that: The steps include: S1, respectively complete the plate wrapping, ear trimming, brush cutting and half shelling of batteries of different specifications through the plate wrapping and shelling branch lines to obtain a half shelling workpiece A; S2, semi-shelled workpieces A of different specifications are conveyed forward along different tracks on the first conveyor main line, and the head ends of the semi-shelled workpieces A at the front ends of different tracks are aligned by the first material sorting mechanism and sent to the flux dipping station, where they are dipped in flux simultaneously and then placed on the second conveyor main line to obtain semi-shelled workpieces B dipped in flux; S3, the semi-shelled workpieces B of different specifications are then conveyed forward along different tracks on the second conveyor main line, and the head ends of the semi-shelled workpieces B at the front ends of different tracks are aligned and sent to the busbar casting and welding station by the second material sorting mechanism and the first manipulator. The busbar casting and welding station adopts a track-type casting and welding machine, and each demoulding and clamping mechanism has a plurality of support plates for supporting and positioning that are respectively matched with the shell opening shapes of the semi-shelled workpieces B of different specifications, and the busbar mold has a mold cavity that is respectively matched with the pole group positions of the semi-shelled workpieces B of different specifications, and cast welding is performed synchronously and then output to the third conveyor main line to obtain a cast-welded workpiece; S4, cast-welded workpieces of different specifications are then conveyed forward along different tracks on the third conveyor main line, and every two cast-welded workpieces of different specifications are grouped together and respectively sent to one of the shelling and bending stations through the third material sorting mechanism so that the centers of the cast-welded workpieces at the front end of the corresponding track are aligned. Each shelling and bending station only performs shelling and bending on one group of cast-welded workpieces to obtain shelled workpieces, while other cast-welded workpieces pass through the shelling and bending station, and finally each shelled workpiece is output to the fourth conveyor main line; S5. The shelled workpieces of different specifications are further conveyed forward along different tracks of the fourth conveying main line. The centers of the shelled workpieces at the front ends of different tracks are aligned by the fourth material sorting mechanism and the second manipulator and conveyed to the fifth conveying main line. The shelled workpieces are conveyed to the short-circuit detection station along the pitch of the fifth conveying main line. The lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the front, back, left, and right positions of the corresponding detection probes are adjusted according to the pole positions of the shelled workpieces of different specifications. Short-circuit detection is performed synchronously. The qualified short-circuit workpieces enter the next stage, while the unqualified ones are removed. S6. Short-circuit qualified workpieces of different specifications are continuously transported forward along different tracks of the fifth conveying main line to the pole correction station, the lifting height is adjusted according to the height of the shelled workpieces of different specifications, and the corresponding correction plate hole positions are adjusted according to the pole positions of the shelled workpieces of different specifications, and the pole correction is performed synchronously to obtain the pole correction workpiece; S7, the pole correction workpieces of different specifications are continuously transported forward along the different tracks of the fifth conveying main line to the sealing ring delivery station, and the sealing rings are delivered simultaneously and then placed downstream of the fifth conveying main line to obtain the sealing ring workpieces; S8. The sealing ring workpieces of different specifications are continuously transported forward along the different tracks of the fifth conveying main line to the gluing and capping station, where they are simultaneously gluing and capping and then sent to the oven to obtain capped storage batteries.

2. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The first material sorting mechanism performs the following steps on the half-shelled workpiece A: first, the half-shelled workpieces A on the front end of each track are conveyed forward one by one, then they are raised to the height of the loading station of the flux dipping station, and then they are pushed horizontally to the loading station of the flux dipping station with the head ends of the half-shelled workpieces A aligned.

3. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The second material sorting mechanism performs the following steps on the half-shelled workpiece B: first, the half-shelled workpieces B on the front end of each track are conveyed forward one by one, then rise to the clamping height of the first manipulator, and then are pushed horizontally to the clamping workstation of the first manipulator with the head ends and top surfaces of the half-shelled workpieces B aligned; the first manipulator synchronously clamps the half-shelled workpiece B on the clamping workstation and flips it over to the bus cast welding station and inverts it on the support plate on the clamping station of the track cast welding machine.

4. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The cast welding workpieces have four specifications, and the shell entry and bending stations are respectively a shell entry and bending station A and a shell entry and bending station B, and each two specifications form a group and are divided into a first group and a second group, wherein the first group of cast welding workpieces are shelled and bent at the shell entry and bending station A, and the second group of cast welding workpieces pass through the shell entry and bending station A, and the second group of cast welding workpieces are shelled and bent at the shell entry and bending station B, and the first group of cast welding workpieces pass through the shell entry and bending station B; The third material sorting mechanism equipped at the shell entry and bending station A and the shell entry and bending station B respectively performs the following steps on the cast-welded workpieces: first, the cast-welded workpieces at the front end of each track are conveyed forward one by one, and then the cast-welded workpieces at the front end of the corresponding track are conveyed to the shell entry and bending station after the center alignment is completed.

5. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The fourth material sorting mechanism performs the following steps on the shelled workpieces: first, the shelled workpieces on the front end of each track are conveyed forward one by one and the head ends are aligned, and then the shelled workpieces are conveyed to the lifting station in pitch, where the shelled workpieces are synchronously lifted so that the second manipulator can synchronously clamp them; the second manipulator is used to synchronously clamp the shelled workpieces of different specifications with their head ends aligned at the lifting station and transfer them to the fifth conveying main line, while aligning the centers of each shelled workpiece.

6. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The flux dipping process of the flux dipping station is specifically as follows: the top surfaces of the half-shelled workpieces A on the loading station are at the same horizontal height, and then the half-shelled workpieces A are turned over and turned upside down on the flux tray by the loading robot for dipping and applying flux to obtain the half-shelled workpieces B, and then the half-shelled workpieces B are turned over and placed upright on the second conveyor main line by the unloading robot. The input end of the second conveyor main line is provided with a lifting support block matching the height of the half-shelled workpieces B of different specifications so that each half-shelled workpiece B can be stably placed on the second conveyor main line.

7. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The shell entry and bending process of the shell entry and bending station is specifically as follows: when the cast-welded workpiece reaches the position, it stops, then the cast-welded workpiece is lifted upward to the bending height, and then the bending assembly moves horizontally to insert into the gap between the bus and the shell and remains stationary, and then the shell entry assembly squeezes the pole group of the cast-welded workpiece downward until it is completely inserted into the shell, and at the same time the bus is bent upward by the action of the bending assembly, and finally drops and resets.

8. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The specific process of picking up the rings at the sealing ring delivery station is as follows: the pole correction workpiece is sent to the sealing ring installation station and stopped, the sealing rings are received one by one from the ring delivery mechanism of the docking vibration plate through the sliding material receiving rack, and then the elastic needle is used to synchronously pick up and install them on the pole of the pole correction workpiece.

9. The method for synchronously producing multiple specifications of lead-acid batteries according to claim 1, characterized in that: The specific process of the gluing and capping station is as follows: the sealing ring workpieces of each track at the end of the fifth conveying main line are synchronously lifted for easy clamping, the transition station is adjusted according to the height of each sealing ring workpiece to a state where it can synchronously and stably receive each sealing ring workpiece, then synchronously clamped and flipped upside down at the transition station and adjusted the height to the same horizontal height of the outer shell openings of each sealing ring workpiece after being placed stably, then synchronously clamped and transferred to the capping station to be upside down on the gluing cover plate, then synchronously transferred to the capping station for pressure maintaining and capping, and finally synchronously sent to the oven for drying.

10. A synchronous production line specially used for implementing the synchronous production method of multiple specifications of lead-acid batteries as described in any one of claims 1 to 9.

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