Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a lithium battery pack spot welding assembly which can automatically perform spot welding fixing on a plurality of lithium battery packs, in the spot welding process, a worker only needs to orderly stack a plurality of lithium batteries into a clamping area of a clamping mechanism and take out the lithium battery packs subjected to spot welding, the clamping, conveying and spot welding processes of the lithium batteries are fully automatic, the labor intensity of the worker is greatly reduced, the working efficiency of the worker is improved, and the labor cost is saved as long as the worker operates the spot welding assembly.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
The stabilizing assembly applied to welding of the lithium battery pack comprises a console (100) horizontally arranged on the ground and a lithium battery spot welding device (300) arranged on the upper end surface of the console (100), wherein the lithium battery spot welding device (300) is used for performing spot welding treatment on lithium batteries and fixing a plurality of groups of lithium batteries into the lithium battery pack;
lithium cell spot welding device (300) including feed mechanism (310), spot welding mechanism (320), feed mechanism (310) are used for providing lift power and feed power for spot welding mechanism (320) carry out the spot welding in-process for the lithium cell, spot welding mechanism (320) are used for carrying out the spot welding to a plurality of lithium cells and make a plurality of lithium cell group composite lithium cell group.
The technical scheme is further improved and optimized.
The feeding mechanism (310) comprises a lifting component and a feeding component, wherein the lifting component comprises a lifting motor (311), a lifting screw rod (312), a lifting guide rod (313), a mounting bracket (314) and a push-pull bracket (315), the lifting motor (311) is vertically and fixedly mounted on the console (100), the lifting screw rod (312) and the power output end of the lifting motor (311) are coaxially and fixedly connected through a coupler, the lifting guide rods (313) are vertically and fixedly mounted on the console (100), and two groups of lifting guide rods (313) are arranged;
the mounting bracket (314) is movably connected with the lifting guide rod (313) and forms sliding guide fit with the lifting guide rod, the push-pull bracket (315) is fixedly mounted at the bottom of the mounting bracket (314), the push-pull bracket (315) is further mounted outside the lifting screw rod (312) through a nut, and the lifting screw rod (312) rotates around the axial direction of the lifting screw rod and can pull the push-pull bracket (315) and the mounting bracket (314) to displace along the guide direction of the lifting guide rod (313).
The technical scheme is further improved and optimized.
The feeding member comprises a feeding motor (316), a feeding screw rod (317) and feeding guide rods (318), the feeding motor (316) is horizontally and fixedly installed on the installation support (314), the feeding screw rod (317) is coaxially and fixedly connected with the power output end of the feeding motor (316) through a coupler, the feeding screw rod (317) is further movably installed on the installation support (314), the feeding screw rod (317) can rotate around the axial direction of the feeding screw rod (317), the guiding direction of the feeding guide rods (318) is parallel to the axial direction of the feeding screw rod (317), the feeding guide rods (318) are fixedly installed on the installation support (314), and two groups of feeding guide rods (318) are arranged.
The technical scheme is further improved and optimized.
The spot welding mechanism (320) comprises a connecting support (321), a guide member, a linkage member and a spot welding machine (329), wherein the connecting support (321) is movably connected with the feeding guide rod (318) and forms sliding guide fit between the connecting support and the feeding guide rod, the connecting support (321) is also arranged outside the feeding screw rod (317) through a nut, and the feeding screw rod (317) rotates around the self axial direction and can pull the connecting support (321) to displace along the guide direction of the feeding guide rod (318).
The technical scheme is further improved and optimized.
The guide component comprises a guide sliding rod (322), a driving block (323), a first buffer spring (327) and a second buffer spring (328), the guide sliding rod (322) is vertically and movably mounted on the connecting bracket (321) and can move along the guide direction of the guide sliding rod, two groups of guide sliding rods (322) are arranged, the driving block (323) is horizontally and movably mounted outside the guide sliding rod (322), and the two groups of guide sliding rods form sliding guide fit;
the outer part of the guide sliding rod (322) is fixedly provided with two groups of abutting lantern rings, the abutting lantern rings are an upper abutting lantern ring positioned above the driving block (323) and a lower abutting lantern ring positioned below the driving block (323), the upper end face of the driving block (323) is provided with an upper abutting groove which is coaxially arranged with the guide sliding rod (322), and the lower end face of the driving block (323) is provided with a lower abutting groove which is coaxially arranged with the guide sliding rod (322);
the buffer spring I (327) is sleeved outside the guide slide rod (322), one end of the buffer spring I (327) is in contact with the upper abutting lantern ring, the other end of the buffer spring I is in contact with the bottom of the upper abutting groove, the elastic force of the buffer spring I (327) drives the driving block (323) to do descending motion along the guide direction of the guide slide rod (322), two groups of buffer spring I (327) are correspondingly arranged, and the upper abutting lantern ring and the upper abutting groove are correspondingly arranged in two groups;
the outside of direction slide bar (322) is located to buffer spring two (328) cover, the one end and the contact of contradicting the lantern ring down of buffer spring two (328), the other end and the contact of contradicting the groove tank bottom down, the elasticity of buffer spring two (328) orders about drive block (323) and is the rising motion along the direction of guide of direction slide bar (322), buffer spring two (328) correspond be provided with two sets ofly and conflict the lantern ring down, conflict the groove all corresponds and be provided with two sets ofly down.
The technical scheme is further improved and optimized.
The linkage component comprises a driving motor (324), a linkage block (325) and a linkage rod (326), the axial direction of an output shaft of the driving motor (324) is parallel to the axial direction of an output shaft of the feeding motor (316), the driving motor (324) is fixedly arranged on the connecting bracket (321), and the linkage block (325) is eccentrically and fixedly arranged at the power output end of the driving motor (324);
the driving block (323) is provided with a linkage hole, the guiding direction of the linkage hole is parallel to the ground and is vertical to the axial direction of the output shaft of the driving motor (324), the extending direction of the linkage rod (326) is parallel to the axial direction of the output shaft of the driving motor (324), one end of the linkage rod (326) is fixedly connected with the free end of the linkage block (325), the other end of the linkage rod is positioned in the linkage hole, and the linkage rod (326) is in sliding guide fit with the linkage hole.
The technical scheme is further improved and optimized.
The spot welding machine (329) is fixedly arranged at the bottom ends of the two groups of guide sliding rods (322).
Compared with the prior art, the spot welding fixture has the advantages that spot welding fixing can be automatically carried out on the plurality of lithium battery packs, in the spot welding process, a worker only needs to orderly stack the plurality of lithium batteries into the clamping area of the clamping mechanism and take out the spot-welded lithium battery packs, the clamping, conveying and spot welding processes of the lithium batteries are fully automatic, the labor intensity of the worker is greatly reduced, the working efficiency of the worker is improved, and the spot welding fixture can be operated by one person, so that the labor cost is saved; in the lithium battery clamping process, the clamping mechanism adopts a square clamping mode, the lithium batteries subjected to spot welding at one time can be stably clamped no matter how many the lithium batteries are, the clamping effect is better, and the applicability is wider; in the spot welding process of the lithium battery, the existence of the first buffer spring/the second buffer spring in the spot welding mechanism can effectively avoid the occurrence of accidents caused by damage of the lithium battery due to deviation in the spot welding process.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Square self-centering combination lithium cell group spot welder, it includes control cabinet 100, lithium cell clamping device 200, lithium cell spot welding device 300, control cabinet 100 horizontal installation is on ground and lithium cell clamping device 200 and lithium cell spot welding device 300 are all installed on control cabinet 100, lithium cell clamping device 200 is used for carrying out the centre gripping to the lithium cell and carries the lithium cell to the spot welding district below of battery spot welding device 300, battery spot welding device 300 is used for carrying out spot welding to the lithium cell and handles and make a plurality of lithium cell fixation of group for the lithium cell group.
The lithium battery clamping device 200 comprises a conveying mechanism 210 and a clamping mechanism 220, wherein the conveying mechanism 210 is used for drawing the clamping mechanism 220 to displace, and the clamping mechanism 220 is used for clamping the lithium battery.
The conveying mechanism 210 includes a conveying motor 211 and a conveying member, and the conveying motor 211 is horizontally and fixedly mounted on the upper end surface of the console 100.
The conveying member comprises a guide rail 212, a conveying screw rod 213 and a supporting platform 214, the guiding direction of the guide rail 212 is parallel to the axial direction of an output shaft of the conveying motor 211, the guide rail 212 is fixedly installed on the upper end face of the control console 100, the axial direction of the conveying screw rod 213 is parallel to the axial direction of the output shaft of the conveying motor 211, a supporting bracket is arranged on the upper end face of the guide rail 212, the conveying screw rod 213 is movably installed on the supporting bracket, the conveying screw rod 213 can rotate around the axial direction of the conveying screw rod, the supporting platform 214 is movably connected with the guide rail 212, sliding guide fit is formed between the supporting platform 214 and the guide rail 212, the supporting platform 214 is further installed outside the conveying screw rod 213 through a screw nut, and the conveying screw rod 213 rotates around the axial direction of the conveying screw rod 213 and.
The conveying members are provided with two groups, and the distance direction between the two groups of conveying members is parallel to the ground and perpendicular to the axial direction of the output shaft of the conveying motor 211.
A power transmission part 215 is arranged between the power output end of the conveying motor 211 and any one of the two groups of conveying screw rods 213, the power transmission part 215 is in power connection transmission between the two groups of conveying screw rods 213, a power synchronization part 216 is arranged between the two groups of conveying screw rods 213, and the power synchronization part 216 is in power connection transmission between the two groups of conveying screw rods 213 through the power synchronization part 216.
The working process of the conveying mechanism 210 is specifically as follows: the conveying motor 211 runs and pulls the conveying screw rods 213 of the two groups of conveying members to rotate around the axial direction of the conveying screw rods 213 through the matching of the power transmission piece 215 and the power synchronization piece 216, the rotation direction of the conveying screw rods 213 is the same, and the conveying screw rods 213 rotate and pull the supporting platform 214 to displace along the guiding direction of the guiding track 212.
The clamping mechanism 220 is installed on the two groups of bearing platforms 214, the clamping mechanism 220 comprises a fixed support, a clamping component and a power component, the fixed support is of a hollow square annular frame structure, the fixed support is fixedly installed on the two groups of bearing platforms 214, the central lines of the fixed support are vertically arranged, the clamping component is used for clamping the lithium battery, and the power component is used for driving the clamping component to clamp the lithium battery or cancel clamping of the lithium battery.
The clamping component comprises a clamping assembly and a driving assembly, the clamping assembly comprises a clamping plate 221, the clamping plate 221 is vertically arranged in the fixed support, the clamping plate 221 is provided with four groups of clamping plates 221, the four groups of clamping plates 221 jointly form a clamping area, the clamping area is of a square structure, the central line of the clamping area and the central line of the fixed support are located on the same vertical straight line, and the clamping area and the fixed support are arranged in a shape of a square.
The driving assembly comprises a clamping guide rod 222 and a clamping screw rod 223, wherein the clamping guide rod 222 and the clamping screw rod 223 are movably mounted at the right angle of the fixed support, the extending directions of the clamping guide rod 222 and the clamping screw rod 223 are parallel to the diagonal extending direction of the fixed support at the right angle, the clamping guide rod 222 can displace along the extending direction of the clamping guide rod 222, the clamping screw rod 223 can displace along the axial direction of the clamping guide rod 223, one end of each of the clamping guide rod 222 and the clamping screw rod 223 is fixedly connected with the corresponding clamping plate 221, the other end of each of the clamping guide rod 222 and the clamping screw rod 223 penetrates through the fixed support and is located outside the fixed support, the driving assemblies are correspondingly provided with four groups, and when the four groups of driving assemblies synchronously displace along the extending direction of the four groups of driving assemblies.
The power member comprises a clamping motor 224, a first power connecting piece 225 and a second power connecting piece 226, the clamping motor 224 is vertically and fixedly mounted on the fixed support, the first power connecting piece 225 is used for receiving power of the clamping motor 224 and transmitting the power to the second power connecting piece 226, the second power connecting piece 226 is used for receiving the power and transmitting the power to a clamping screw rod 223 of the driving assembly, and four groups of the second power connecting pieces 226 are correspondingly arranged.
The power connecting piece II 226 comprises a first connecting shaft 2261, a second connecting shaft 2262, a driving bevel gear 2263 and a driven bevel gear 2264, the first connecting shaft 2261 is vertically and movably mounted on the fixed support and can rotate around the axial direction of the first connecting shaft, the second connecting shaft 2262 and a clamping screw 223 of the corresponding driving assembly are coaxially arranged, the second connecting shaft 2262 is movably mounted on the fixed support and can rotate around the axial direction of the second connecting shaft, the second connecting shaft 2262 is further coaxially mounted outside the clamping screw 223 of the corresponding driving assembly in a threaded mounting mode, and the second connecting shaft 2262 rotates around the axial direction of the second connecting shaft and can pull the clamping screw 223 to displace along the axial direction of the second.
The driving bevel gear 2263 is coaxially and fixedly arranged outside the first connecting shaft 2261, the driven bevel gear 2264 is coaxially and fixedly arranged outside the second connecting shaft 2262, and the driving bevel gear 2263 is meshed with the driven bevel gear 2264.
The first power connecting part 225 comprises a driving belt wheel 2251, a pressing belt wheel 2252, driven belt wheels 2253 and a conveying belt 2254, wherein the driving belt wheel 2251 is coaxially and fixedly mounted outside the power output end of the clamping motor 224, the pressing belt wheels 2252 are vertically and movably mounted on the fixed bracket and can rotate around the axial direction of the pressing belt wheels, two sets of the pressing belt wheels 2252 are arranged and are respectively located on one side of the clamping motor 224, the driven belt wheels 2253 are coaxially and fixedly mounted outside the first connecting shaft 2261, and four sets of the driven belt wheels 2253 are correspondingly arranged, and the four sets of the driven belt wheels 2253 and the two sets of the pressing belt wheels 2252 are both located on a square edge line with the center line.
The head end of the conveyor belt 2254 sequentially passes around the driving pulley 2251, the set of pressing pulleys 2252, the four sets of driven pulleys 2253, and the other set of pressing pulleys 2552, and is fixedly connected to the head end of the conveyor belt 2254 to form a closed loop.
The working process of the clamping mechanism 220 is as follows: the clamping motor 224 operates and drives the clamping screw rods 223 of the four groups of driving assemblies to synchronously displace along the self axial direction through the matching of the power connecting piece I225 and the four groups of power connecting pieces II 226, the clamping screw rods 223 move and pull the clamping plate 221 to synchronously move, even if the area of the clamping assembly changes and the clamping area always keeps a square structure, the purpose of clamping or unclamping the lithium battery placed in the clamping area is achieved.
Lithium cell spot welding device 300 include feed mechanism 310, spot welding mechanism 320, feed mechanism 310 is used for providing lift power and feeding power for spot welding mechanism 320 carries out the spot welding in-process for the lithium cell, spot welding mechanism 320 is used for carrying out the spot welding and making the synthetic lithium cell group of a plurality of lithium cell groups to the lithium cell that is located the centre gripping subassembly clamping area.
The feeding mechanism 310 comprises a lifting member and a feeding member, the lifting member comprises a lifting motor 311, a lifting screw 312, a lifting guide rod 313, a mounting bracket 314 and a push-pull bracket 315, the lifting motor 311 is vertically and fixedly mounted on the console 100, the lifting screw 312 and the power output end of the lifting motor 311 are coaxially and fixedly connected through a coupler, the lifting guide rods 313 are vertically and fixedly mounted on the console 100, and the lifting guide rods 313 are provided with two groups.
The mounting bracket 314 and the lifting guide rod 313 are movably connected and form sliding guide fit, the mounting bracket 314 is also positioned above the conveying component, the push-pull bracket 315 is fixedly mounted at the bottom of the mounting bracket 314, the push-pull bracket 315 is also mounted outside the lifting screw 312 through a nut, and the lifting screw 312 rotates around the axial direction of the lifting screw and can pull the push-pull bracket 315 and the mounting bracket 314 to displace along the guiding direction of the lifting guide rod 313.
The feeding member comprises a feeding motor 316, a feeding screw rod 317 and feeding guide rods 318, wherein the axial direction of an output shaft of the feeding motor 316 is parallel to the ground and is perpendicular to the axial direction of a conveying shaft of the conveying motor 211, the feeding motor 316 is fixedly arranged on the mounting bracket 314, the feeding screw rod 317 and a power output end of the feeding motor 316 are coaxially and fixedly connected through a coupler, the feeding screw rod 317 is further movably arranged on the mounting bracket 314, the feeding screw rod 317 can rotate around the axial direction of the feeding screw rod 317, the guiding direction of the feeding guide rods 318 is parallel to the axial direction of the feeding screw rod 317, the feeding guide rods 318 are fixedly arranged on the mounting bracket 314, and two groups of the.
The working process of the feeding mechanism 310 is specifically as follows: the lifting motor 311 runs and pulls the lifting screw 312 to rotate around the self axial direction, the lifting screw 312 rotates and pulls the push-pull bracket 315 and the mounting bracket 314 to displace along the guiding direction of the lifting guide rod 313, and the height of the feeding component can be controlled by controlling the running condition of the lifting motor 311.
The spot welding mechanism 320 comprises a connecting bracket 321, a guide member, a linkage member and a spot welding machine 329, wherein the connecting bracket 321 is movably connected with the feeding guide rod 318, the connecting bracket 321 and the feeding guide rod 318 form sliding guide fit, the connecting bracket 321 is also arranged outside the feeding screw rod 317 through a nut, and the feeding screw rod 317 rotates around the self axial direction and can pull the connecting bracket 321 to displace along the guide direction of the feeding guide rod 318.
The guide component comprises a guide sliding rod 322, a driving block 323, a first buffer spring 327 and a second buffer spring 328, the guide sliding rod 322 is vertically and movably mounted on the connecting support 321 and can move along the guide direction of the guide sliding rod, two groups of guide sliding rods 322 are arranged, the driving block 323 is horizontally and movably mounted outside the guide sliding rod 322, and sliding guide matching is formed between the guide sliding rod 322 and the guide sliding rod.
The fixed conflict lantern ring that is provided with in outside of direction slide bar 322, the conflict lantern ring be provided with two sets ofly and be the lower conflict lantern ring that is located the upper conflict lantern ring of drive block 323 top, is located the drive block 323 below respectively, the up end of drive block 323 be provided with the coaxial last conflict groove of arranging of direction slide bar 322, the lower terminal surface of drive block 323 be provided with the coaxial lower conflict groove of arranging of direction slide bar 322.
The first buffer spring 327 is sleeved outside the guide slide bar 322, one end of the first buffer spring 327 is in contact with the upper abutting lantern ring, the other end of the first buffer spring 327 is in contact with the bottom of the upper abutting groove, the elastic force of the first buffer spring 327 drives the driving block 323 to do descending motion along the guide direction of the guide slide bar 322, and the first buffer spring 327 is correspondingly provided with two groups and the upper abutting lantern ring and the upper abutting groove are correspondingly provided with two groups.
The second buffer spring 328 is sleeved outside the guide slide bar 322, one end of the second buffer spring 328 is in contact with the lower abutting lantern ring, the other end of the second buffer spring 328 is in contact with the bottom of the lower abutting groove, the driving block 323 is driven by the elastic force of the second buffer spring 328 to move upwards along the guide direction of the guide slide bar 322, and the second buffer spring 328 is correspondingly provided with two groups and two groups of lower abutting lantern rings and two groups of lower abutting grooves are correspondingly provided.
The spot welding machine 329 is fixedly arranged at the bottom ends of the two groups of guide sliding rods 322; the spot welder 329 is a conventional spot welding technique and will not be described in detail herein.
The linkage component comprises a driving motor 324, a linkage block 325 and a linkage rod 326, wherein the axial direction of the output shaft of the driving motor 324 is parallel to the axial direction of the output shaft of the feeding motor 316, the driving motor 324 is fixedly arranged on the connecting bracket 321, and the linkage block 325 is eccentrically and fixedly arranged at the power output end of the driving motor 324.
The driving block 323 is provided with a linkage hole, the guiding direction of the linkage hole is parallel to the axial direction of the output shaft of the conveying motor 211, the extending direction of the linkage rod 326 is parallel to the axial direction of the output shaft of the driving motor 324, one end of the linkage rod 326 is fixedly connected with the free end of the linkage block 325, the other end is positioned in the linkage hole, and the linkage rod 326 and the linkage hole form sliding guide fit.
The working process of the spot welding mechanism 320 is specifically as follows: the driving motor 324 operates and pulls the linkage block 325 to rotate axially around the output shaft of the driving motor 324, the linkage block 325 rotates and drives the driving block 323 to do lifting reciprocating motion through the cooperation between the linkage rod 326 and the linkage hole arranged on the driving block 323, in addition, the driving motor 324 operates for a period, the driving block 323 performs the lifting reciprocating motion once, the driving block 323 moves and drives the guide sliding rod 322 to perform synchronous motion through the cooperation of the buffer spring I/II, the guide sliding rod 323 moves and pulls the spot welding machine 329 to perform synchronous motion, and further, the spot welding operation is completed.
During actual work, after a plurality of lithium batteries are orderly stacked in a clamping area of the clamping assembly by a worker, the clamping motor 224 runs and drives the clamping screw rods 223 of the four groups of driving assemblies to synchronously displace along the self axial direction through the matching of the power connecting piece I225 and the four groups of power connecting pieces II 226, the clamping screw rods 223 move and pull the clamping plates 221 to synchronously move, so that the area of the clamping assembly is reduced, and the clamping motor 224 stops running until the lithium batteries are clamped;
then, the conveying motor 211 runs, and pulls the conveying screw rods 213 of the two groups of conveying members to rotate around the self axial direction and rotate in the same direction through the matching of the power transmission piece 215 and the power synchronization piece 216, the conveying screw rods 213 rotate and pull the supporting platform 214 to displace along the guiding direction of the guiding track 212, so that the clamping area of the clamping assembly is positioned under the mounting bracket 314, and even if the lithium battery pack in the clamping area of the clamping assembly is positioned under the mounting bracket 314, the conveying motor 211 stops moving;
then, the lifting motor 311 and the feeding motor 316 both start to operate, the lifting motor 311 operates to enable the spot welding mechanism 320 to do descending motion, the feeding motor 316 enables the spot welding mechanism 320 to do motion close to the lithium battery in the clamping area of the clamping assembly, and after the spot welding end of the spot welding machine 329 is located right above the lithium battery pack through cooperation of the lifting motor 311 and the feeding motor 316, the lifting motor 311 and the feeding motor 316 stop moving;
then, the driving motor 324, the feeding motor 316 and the conveying motor 211 are matched to operate to perform fixed spot welding operation on a plurality of lithium batteries, and the plurality of lithium batteries are fixed into a lithium battery pack through spot welding;
after spot welding, the driving motor 324 stops running, meanwhile, the feeding motor 316 and the lifting motor 311 run in reverse directions, the spot welding machine 329 is far away from the clamping area of the clamping assembly, the conveying motor 211 runs in reverse directions, and the clamping mechanism 220 is restored to the original position;
then, centre gripping motor 224 reverse operation makes the grip area grow of centre gripping subassembly, and then makes the centre gripping subassembly withdraw the centre gripping to the lithium cell, and the staff takes out the fixed lithium cell that finishes of spot welding, afterwards, can carry out the lithium cell spot welding of next round.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.